CN111974176A - Dehumidification module of mixed gas and detection system thereof - Google Patents

Abstract

The present invention provides a mixed gas dehumidification module and a detection system thereof. A first film component is arranged in a first dehumidification module. The first film component divides the first dehumidification module into a first space and a second space. A first pump is connected to the first space via a first pipe and generates a first suction force to the first space. A second pump is connected to the second space via a second pipe and generates a second suction force to the second space, and the second suction force is greater than the first suction force. When the mixed gas enters the first space from a first air inlet, because the vacuum degree of the second space is greater than that of the first space, the water molecules in the mixed gas are separated through the film component and enter the second space. The mixed gas with the separated water molecules cannot pass through the film component and is sucked out by the first pump.

Description

Mixed gas dehumidification module and its detection system

technical field

The invention relates to the field of a dehumidification module for mixed gas and a detection system thereof.

Background technique

Nowadays, the analysis method for volatile organic compounds (VOCs) is not perfect. In the existing technology, a simple condenser is usually used to remove water, but the water in the gas cannot be completely removed, and there will be some The volatile organic compounds that can be dissolved in the condensed water are diluted, and the accumulated water stains inside are not cleaned in time, which will block the pipeline and cause deviations in the analysis results. After the residual moisture in the gas enters the detection and analysis device, it will be The service life will be greatly reduced, and in severe cases, the detection and analysis device will be damaged, and the detection of volatile organic compounds cannot be carried out for a long time.

Generally, before analyzing volatile organic compounds, the common dehumidification methods are: 1. Add a water scavenger, such as silica gel, anhydrous calcium chloride or molecular sieve, etc. for adsorption; 2. Use dry gas to dehumidify the hydrophilic film, such as Perfluorosulfonic acid (Nafion dryer) blows to make the difference of dry humidity inside and outside the hydrophilic film, and then separates the water vapor in the volatile organic matter; water is separated.

However, if the method of adding water scavengers, such as silica gel, anhydrous calcium chloride or molecular sieve, is used to adsorb water vapor, the adsorbent used in this method needs to be regularly maintained or replaced in the case of shutdown, and its derived The cost of consumables, the loss of downtime or the operation cost will cause a great cost to the company. Furthermore, when using water scavengers or hydrophilic membranes, such as perfluorosulfonic acid for water-gas separation, it is easy to cause other polarities. The adsorption and/or penetration of compounds will cause errors in analysis if the analytical device analyzes compounds with polarity, and the method of freezing and cooling requires first running a cooling machine to remove volatile organic compounds. Cooling, usually the temperature needs to drop to -30 degrees C to ensure that water molecules and water vapor condense into ice, and then separate from volatile organic gas, but the operating cost and energy consumption required are quite high, and relatively large cost.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a mixed gas dehumidification module and a detection system thereof. A first membrane assembly is arranged in a first dehumidification module, and the first membrane assembly divides the first dehumidification module into a first dehumidification module. space and a second space, and the first space and the second space are respectively connected with a first pump and a second pump through pipelines, and the suction force generated by the second pump is greater than that of the first pump, A pressure difference is generated between the first space and the second space. When the water molecules in the mixed gas input into the first dehumidification module will be separated into the second space through the membrane module due to the pressure difference.

In order to achieve the above-mentioned purpose, the present invention discloses a mixed gas detection system, which includes a first dehumidification module, which includes a first hollow body, and a first membrane component is arranged in the first hollow body. The thin film assembly divides the first hollow body into a first space and a second space, the hollow body includes a first air inlet, a first air outlet and a second air outlet, the first air inlet and the The first air outlet is respectively arranged on two sides of the first dehumidification module and communicates with the first space, and the second air outlet is arranged on the first dehumidification module and communicates with the second space, a pressure module, which The first air outlet and the second air outlet are respectively connected, and the pressure module includes a first pump, which is arranged and connected to a first pipeline, and one end of the first pipeline is connected to the first air outlet , the first pump generates a first suction force for the first space, and a second pump is arranged and connected to the second pipeline, and one end of the second pipeline is connected to the second air outlet, the The second pump generates a second suction for the second space, an analysis device is disposed and connected to the first pipeline, and the analysis device is located between the first pump and the first dehumidification module, wherein , when a mixed gas enters the first space, the first pump and the second pump generate a pressure difference, and a plurality of water molecules in the mixed gas are separated into the second space through the first membrane element, and the separation The mixed gas after the water molecules is discharged from the first air outlet.

In order to achieve the above object, the present invention further discloses a dehumidification module for mixed gas, which includes a first valve assembly, and the first valve assembly is respectively provided with a plurality of front air inlets, a first front air outlet and a second A front air outlet, and the first front air outlet is connected to a third pipe, the second front air outlet is connected to a fourth pipe, a first dehumidification module, which includes a first hollow body, and the first hollow body is arranged inside a first membrane assembly, the first membrane assembly divides the first hollow body into a first space and a second space, the first hollow body includes a first air inlet, a first air outlet and a second Air outlet, the first air inlet and the first air outlet are respectively arranged on two sides of the first dehumidification module and communicate with the first space, and the second air outlet is arranged on the first dehumidification module and The second space is communicated with a pressure module, which is respectively connected to the first air outlet and the second air outlet, and the pressure module includes a first pump, which is arranged and connected to a first pipeline, and the One end of the first pipe is connected to the first air outlet, the first pump generates a first suction force for the first space, and a second pump is arranged and connected to the second pipe, and the second One end of the pipe is connected to the second air outlet, the second pump generates a second suction for the second space, and a fourth pump is arranged and connected to the fourth pipe, and the fourth pipes are respectively connected to the The second front air outlet, the second conduit and the first conduit, wherein the first valve assembly controls the first front air inlet to communicate with the first front air outlet, and the second front air inlet to communicate with the second front air outlet Or the first front air inlet communicates with the second front air outlet, and the second front air inlet communicates with the first front air outlet.

In order to achieve the above object, the present invention further discloses a mixed gas dehumidification module, which includes a plurality of dehumidification modules, and each of the dehumidification modules includes a first hollow body, and a first film is arranged in the first hollow body. The first membrane assembly divides the first hollow body into a first space and a second space, the first hollow body includes a first air inlet, a first air outlet and a second air outlet, the The first air inlet and the first air outlet are respectively arranged on two sides of the first dehumidification module and communicate with the first space, and the second air outlet is arranged on the first dehumidification module and communicated with the second air outlet. space, a second valve assembly, the second valve assembly is respectively provided with a plurality of rear air inlets, a first rear air outlet and a second rear air outlet, the second valve assembly is installed and connected to a first pipeline , and the first rear air outlet is connected to the first pipeline, and the rear air inlets are respectively connected to the first air outlets of the dehumidification modules, wherein the second valve assembly controls the air ports to communicate with each other. The first rear air outlet and the second rear air outlet, a pressure module, are respectively connected to the first pipeline and a second pipeline, and the second pipeline is respectively connected to the second air outlets on the dehumidification modules , and the pressure module includes a first pump, which is arranged and connected to the first pipeline, and one end of the first pipeline is connected to the first rear air outlet, and the first pump passes through the second valve assembly A first suction force and a second pump are respectively generated for the first spaces of the dehumidification modules, which are arranged and connected to the second pipeline, and one end of the second pipeline is connected to the second air outlet, the The second pump generates a second suction force for the second spaces of the dehumidification modules respectively.

The details of other functions and embodiments of the present invention are described below with the help of the drawings.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the system structure schematic diagram of the first embodiment of the present invention;

FIG. 2 is a schematic diagram of the system operation of the second embodiment of the present invention;

3A is a schematic diagram of the system operation of the third embodiment of the present invention;

3B is a schematic diagram of the system operation of the third embodiment of the present invention;

3C is a schematic diagram of the system operation of the third embodiment of the present invention; and

FIG. 4 is a schematic diagram of system operation according to the fourth embodiment of the present invention.

Symbol Description

1 Dehumidification module of mixed gas and its detection system

20 Dehumidification module 22 The first hollow body

222 First space 224 Second space

226 first air inlet 227 first air outlet

228 The second air outlet 24 The first membrane assembly

26 The second dehumidification module 262 The second hollow body

264 Second membrane module 265 Third space

266 Fourth space 267 Second air intake

268 The third air outlet 269 The fourth air outlet

3First pump 4Analysis device

5 Second pump 6 Condensing device

62 Water storage device 64 Third pump

66 Fourth pump 68 Fifth pump

7 The first valve assembly 70 Front air intake

71 First front air intake 72 Second front air intake

73 First front air outlet 74 Second front air outlet

8 Second valve assembly 80 Rear air inlet

81 1st rear air inlet 82 2nd rear air inlet 82

83 The first rear air outlet 84 The second rear air outlet

A Mixed gas D Pressure module

W water molecule VOCs volatile organic compound gas

H1 first temperature and humidity meter H2 second temperature and humidity meter

L1 first gas pipe L2 second gas pipe

T1 first pipe T2 second pipe

T3 third pipe T4 fourth pipe

T5 fifth pipe T6 sixth pipe

P1 first suction P2 second suction

P3 third suction P4 fourth suction

P5 fifth suction V1 first vacuum gauge V2 second vacuum gauge

Detailed ways

The positional relationships described in the following embodiments, including: up, down, left and right, are based on the directions shown by the components in the drawings unless otherwise specified.

First, please refer to FIG. 1 , which is a schematic diagram of the system structure of the first embodiment of the present invention. As shown in the figure, the present invention is a dehumidification module for mixed gas and a detection system 1 thereof, which includes a first dehumidification module. 2 and a pressure module D.

The first dehumidification module 2 includes a first hollow body 22 and a first membrane element 24 , the first membrane element 24 is disposed in the first hollow body 22 , and the first membrane element 24 is the first hollow body 24 . The body 22 is divided into a first space 222 and a second space 224 , and the first hollow body 22 includes a first air inlet 226 , a first air outlet 227 and a second air outlet 228 . The air port 226 and the first air outlet 227 are respectively disposed on two sides of the first dehumidification module 2 and communicate with the first space 222 , and the second air outlet 228 is disposed on the first dehumidification module 2 and communicates with the second air outlet 228 Space 224, the pressure module D is respectively connected to the first air outlet 227 and the second air outlet 228, the pressure module D includes a first pump 3 and a second pump 5, the first pump 3 is A first pipeline T1 is arranged and connected, and one end of the first pipeline T1 is connected to the first air outlet 227, so that the first pipeline T1 is connected to the first space 222, and the first pump 3 is arranged and connected to the On the first pipe T1, and the first pump 3 generates a first suction force P1 to the first space 222, the second pump 5 is arranged and connected to a second pipe T2, and the second pipe T2 One end is connected to the second air outlet 228 of the first dehumidification module 2, and the second pump 5 generates a second suction force P2 for the second space 224, wherein the second pump 5 generates the second suction force P2. The suction force P2 passes through the second pipe T2, and the second suction force P2 is transmitted to the second space 224, and the second suction force P2 is greater than the first suction force P1. The first air inlet 226 enters the first space 222 , because the first pump 3 generates a first suction force P1 to the first space 222 , and the second pump 5 generates a second suction force to the second space 224 P2, so that the first space 222 and the second space 224 generate a pressure difference due to the action of the first pump 3 and the second pump 5, and after the mixed gas enters the first space 222, the water in the mixed gas The molecules will separate the water molecules through the first membrane element 24 , the water molecules in the mixed gas will be separated into the second space 224 , and the mixed gas separated from the water molecules will enter the first air outlet 227 through the first air outlet 227 . Pipeline T1.

Furthermore, the mixed gas dehumidification module and its detection system 1 further comprise an analysis device 4, the analysis device 4 is arranged and connected to the first pipeline T1, and the analysis device 4 is located between the first dehumidification module 2 and the first pipe T1. Between the first pumps 3 , the first suction force P1 generated by the first pump 3 passes through the first pipeline T1 and through the analysis device 4 , and transmits the first suction force P1 into the first space 222 , so that after the water molecules in the mixed gas are separated, the dry mixed gas will enter the first pipeline T1 from the first gas outlet 227 to the analysis device 4 for analysis.

The analysis device 4 is a gas chromatography analysis device, a gas chromatography tandem mass spectrometry analysis device, a gas chromatography electron capture detector or a gas chromatography flame ionization detector.

In addition, the material of the first membrane element 24 is zeolite or graphene. When the material of the first membrane element 24 is zeolite, the first membrane element 24 has a plurality of holes, and the size of the holes is larger than water molecules, so that the water molecules can enter the second space 224 from the first space 222 through the first membrane element 24 made of zeolite, and the mixed gas whose molecular size is smaller than water molecules cannot pass through the first membrane element 24 .

In addition, when the material of the first thin film component 24 is graphene, it uses the neat stacking of graphene to generate the channel size that water molecules can pass through or utilizes the hydrophilicity of graphene, so that water molecules are pulled by vacuum/pressure. Or capillary phenomenon, so that the water molecules pass through the first membrane assembly 24 to the side with a higher degree of vacuum.

Next, please continue to refer to FIG. 2 , which is a schematic diagram of the system operation of the second embodiment of the present invention. As shown in the figure, the difference between this embodiment and the first embodiment is that this embodiment further includes a condensation device 6 As well as a water storage device 62, other components are the same as those in the first embodiment, which will not be repeated here.

The condensing device 6 is disposed and connected to the second pipeline T2, and the condensing device 6 is located between the first dehumidification module 2 and the second pump 5, and the water storage device 62 is disposed and connected to the second pipeline T2 , and the water storage device 62 is located between the condensation device 6 and the second pump 5, the condensation device 6 and the water storage device 62 communicate with each other, so that the second suction force P2 generated by the second pump 5 can The second suction force P2 is generated to the second space 224 through the water storage device 62 and the condensing device 6 through the second pipe T2.

In addition, in order to increase the second suction force P2 in the second space 224, a third pump 64 is further arranged and connected to the second pipe T2, and the third pump 64 is located in the first dehumidification module 2 and the second pump 5, and the third pump 64 is set between the first dehumidification module 2 and the condensing device 6 for description in this embodiment, when the second suction force P2 is generated by the second When the pump 5 is delivered to the second space 222, if the second suction force P2 is insufficient, it will not be able to effectively separate water molecules to the second space 224, but the third pump 64 can be turned on to make the third pump 64 generates a third suction force P3, and the third suction force P3 will combine with the second suction force P2 in the second space 224, thereby increasing the pressure difference between the first space 222 and the second space 224.

Furthermore, in order to obtain the humidity and temperature of the mixed gas more accurately, a first temperature and humidity meter H1 can be installed on one side of the first air inlet 226, and a connection between the first dehumidification module 2 and the analysis device 4 can be provided. The first pipe T1 is provided with a second temperature and humidity meter H2, which can measure the temperature and humidity of the mixed gas introduced from the first air inlet 226 through the first temperature and humidity meter H1, and the second temperature and humidity The hygrometer H2 measures the temperature and humidity of the mixed gas after passing through the first dehumidification module 2. Through the above-mentioned measurements of the first hygrometer H1 and the second hygrometer H2, it is possible to monitor the passage of the first dehumidifier. The concentration and temperature of water molecules in the mixed gas of module 2.

And, a first vacuum gauge V1 can be set on the first pipeline T1, and a second vacuum gauge V2 can be set on the second pipeline T2. When the first pump 3 generates the first suction force P1 on the first pipeline At T1, the first vacuum gauge V1 can measure the first suction force P1 relative to the degree of vacuum in the first pipe T1, and the second suction force P2 generated by the second pump 5 in the second pipe T2 , the second vacuum gauge V2 can measure the vacuum degree of the second suction force P2 relative to the second pipe T2, and the second vacuum gauge V2 can be arranged on the second pipe T2 and located in the third pipe T2. Between the pump 64 and the first dehumidification module 2, the second vacuum gauge V2 measures the second suction force P2 plus the third suction force P3 relative to the vacuum in the second pipe T2.

Please continue to refer to FIG. 2 , which is a schematic diagram of the operation of the system according to the second embodiment of the present invention. As shown in the figure, when the external input of the mixed gas dehumidification module and its detection system 1 is supplied with a mixed gas A to In the first dehumidification module 2, the mixed gas A contains a volatile organic compound gas VOCs and a plurality of water molecules W, and the mixed gas A can further contain air or other gases. In addition, the implementation of the present invention The mixed gas A in the example all includes the above-mentioned volatile organic compound gas VOCs and the water molecules W, which will not be repeated hereafter. The first pump 3 generates the first suction force P1, which is transmitted to the water through the first pipeline T1. In the first space 222, the second suction force P2 generated by the second pump 5 is transmitted to the second space 224 through the second pipe T2, so that the first space 222 in the first dehumidification module 2 is connected to the second suction force P2. A pressure difference is generated between the two spaces 224, wherein the second suction force P2 is greater than the first suction force P1. After the mixed gas A enters the first space 222 through the first air inlet 226, because the first space 222 There is a pressure difference relationship with the second space 224 , the mixed gas A will approach the first membrane element 24 first, and the first membrane element 24 will cause some of the gas in the mixed gas A due to the relationship of its material. The water molecules W in the mixed gas A are separated to the second space by the first membrane element 24 through the pore size of the first membrane element 24 or the relationship between vacuum/pressure traction and capillary phenomenon 224, the volatile organic compound gas VOCs in the mixed gas A will be sucked into the analysis device 4 by the first suction force P1 through the first pipeline T1 for analysis of the volatile organic compound gas VOCs, and the analysis is completed or passed. Much of the volatile organic compound gas VOCs can be discharged through the first suction force P1.

Furthermore, in order to allow the water molecules W entering the second space 224 to be discharged more efficiently, the condensing device 6 and the water storage device 62 can be installed on the second pipeline T2 and connected to the water storage device 62 . After the molecules W enter the second space 224, they will be input to the condensing device 6 from the second pipe T2 through the second air outlet 228 to condense the water molecules W, and then be sucked by the second suction force P2 to the condensation device 6. The water storage device 62 is stored, and when the water volume of the water storage device 62 reaches a certain value, it will be discharged together.

In addition, in order to enhance the second suction force P2 generated by the second pump 5, the third pump 64 can be further arranged between the first dehumidification module 2 and the second pump 5. In more detail, The third pump 64 can be disposed between the condensing device 6 and the second space 224, and generates a third suction force P3 combined with the second suction force P2 generated by the second pump 5, thereby causing the first suction force P3. The pressure difference between the first space 222 and the second space 224 is larger.

Next, please continue to refer to FIG. 3A , which is a schematic diagram of the operation of the system according to the third embodiment of the present invention. As shown in the figure, the mixed gas dehumidification module and its detection system 1 include a first dehumidification module 2 , a first A pump 3 , an analysis device 4 and a second pump 5 , wherein the connection relationship of the above-mentioned components is the same as that of the first embodiment, and will not be repeated here.

The mixed gas dehumidification module and its detection system 1 of the present embodiment further include a first valve assembly 7 and a fourth pump 66 . The first valve assembly 7 is respectively provided with a plurality of front air inlets 70 and a first The front air outlet 73 and a second front air outlet 74. The front air inlets 70 in this embodiment are described as a first front air inlet 71 and a second front air inlet 72. The air port 73 is connected to a third pipe T3, and the third pipe T3 is connected to the first air inlet 226, so that the first front air outlet 73 can be communicated from the first air inlet 226 to the first air outlet 226 via the third pipe T3. The first space 222 and the fourth pump 66 are disposed on and connected to a fourth pipe T4, and the fourth pipe T4 is respectively connected to the second front air outlet 74, the second pipe T2 and the first pipe T1 , the fourth pump 66 generates a fourth suction force P4 and transmits it to the first valve assembly 7 , the second pipeline T2 and the first pipeline T1 through the fourth pipeline T4 .

The first front air inlet 71 is connected to the first front air outlet 73 or the second front air outlet 74, the second front air inlet 72 is connected to the first front air outlet 73 or the second front air outlet 74, and the The first valve assembly 7 controls the first front air inlet 71 to communicate with the first front air outlet 73 , the second front air inlet 72 to communicate with the second front air outlet 74 or the first front air inlet 71 to communicate with the second front air outlet 74. The second front air inlet 72 communicates with the first front air outlet 73.

Next, please continue to refer to FIG. 3A , which is a schematic diagram of the operation of the system according to the third embodiment of the present invention. As shown in the figure, when the first front air inlet 71 and the second front air inlet 72 of the first valve assembly 7 are respectively Input or pass a mixed gas A into the first valve assembly 7 from the outside, and input the volatile organic gas VOCs in the mixed gas A of the first front air inlet 71 and the second front air inlet 72 respectively. The types and concentrations are the same or different, and the concentrations of the water molecules W are the same or different. When the mixed gas A is input to the first front air inlet 71 and the second air inlet 72 respectively, the The first valve assembly 7 can select that the first front air inlet 71 communicates with the first front air outlet 73 , the second front air inlet 72 communicates with the second front air outlet 74 or the first front air inlet 71 communicates with the second front air outlet 74. The second air inlet 72 communicates with the first front air outlet 73. If the first valve assembly 7 selects the former connection method, the mixed gas A in the first front air inlet 71 will be released by the first valve assembly 7. The first front air outlet 73 is input to the first space 222 of the first dehumidification module 2 through the third pipe T3, and the pressure difference generated in the first dehumidification module 2 is the same as the first embodiment and the second The embodiment is the same, and will not be repeated here. The mixed gas A entering the first space 222 has a higher degree of vacuum than the first space 222, so that the water molecules W pass through the first membrane element. 24 enters the second space 224, and after removing the water molecules W, the volatile organic gas VOCs in the first space 222 will be input to the analysis device 4 through the first pipe T1 for gas analysis.

The fourth pump 66 generates a fourth suction force P4 in the fourth pipe T4, so that the second front air outlet 74, the second pipe T2 and the first pipe T1 are respectively connected to the fourth pipe T4. The fourth suction force P4 is generated, and the mixed gas A input from the second front air inlet 72 will be communicated to the fourth pipe T4 through the second front air outlet 74 of the first valve assembly 7, and along with the fourth The suction force P4 is discharged via the fourth pump 66 .

In addition, the fourth pump 66 is respectively connected to the second front air outlet 74 , the second pipe T2 on the second pump 5 and the first pipe T1 via the fourth pipe T4 , when entering the second The water molecules W in the space 224 can be communicated to the fourth pipe T4 via the second pipe T2, and discharged through the fourth suction force P4 generated by the fourth pump 66, and the water removed from the first pipe T1 After the mixed gas A of molecules enters the analysis device and analysis is completed, the remaining mixed gas A with water molecules removed is also connected to the fourth pump 66 through the first pipeline T1 and discharged through the fourth pump 66 .

Please continue to refer to FIG. 3B , which is a schematic diagram of the operation of the system according to the third embodiment of the present invention. As shown in the figure, when the amount of air input from the first front air outlet 73 to the third pipe T3 is too large , it can further set a first gas pipeline L1, the first gas pipeline L1 is respectively connected to the third pipeline T3 and the fourth pipeline T4, which can directly divide the gas on the third pipeline T3, via The first air pipe L1 is directly connected to the fourth pipe T4 for discharge.

Please continue to refer to FIG. 3C , which is a schematic diagram of the operation of the system according to the third embodiment of the present invention. As shown in the figure, one end of the first air pipe L1 in this embodiment can be further connected to the analysis device 4 and the first dehumidifier. The first pipeline T1 between the modules 2, the other end of the first gas pipeline L1 is connected to the first pipeline T1 at the rear end of the first pump 3, which can connect the first dehumidification module 2 with the analysis device 4 The gas that cannot be discharged in real time is split through the first gas pipeline L1, so that the excess gas can be directly connected to the first pump 3 at the rear end of the first pump 3 without passing through the analysis device 4 and the first pump 3. Pipeline T1.

Through the description of the above-mentioned third embodiment, the mixed gas dehumidification module and its detection system 1 can first select/control the input mixed gas through the first valve assembly. In this embodiment, the first valve assembly is used. The first front air inlet is controlled to communicate with the first front air outlet to the third pipe, and the second front air inlet is connected to the fourth pipe for illustration, and then the mixed gas entering the third pipe enters the first space. For the separation of the water molecules, the mixed gas after the separation of the water molecules is input to the analysis device through the first pipeline for analysis, and the mixed gas after analysis or excessive is input to the analysis device through the first pipeline the fourth pipe is discharged; then the water molecules in the second space are input to the fourth pipe from the second pipe for discharge; and the second front air inlet is connected to the second front air outlet and input to the fourth pipe The pipeline directly discharges the mixed gas A. According to the above description, after the first valve assembly controls the gas connected to the first dehumidification module, the gas is input into the first dehumidification module, and the gas is between the two spaces. A membrane is arranged and the water molecules in the mixed gas are separated by means of pressure difference. Compared with the previous technology of separating water molecules, the operating cost and energy consumption of consumables of the present invention are relatively low, and the operation can be maintained for a long time. , and can adjust the dehumidification efficiency and flow control according to the demand conditions.

Next, please continue to refer to FIG. 4 , which is a schematic diagram of the operation of the system according to the fourth embodiment of the present invention. As shown in the figure, the mixed gas dehumidification module and its detection system 1 include a plurality of dehumidification modules 20 , a first pump The pump 3, an analysis device 4 and a second pump 5, wherein the connection relationship of the above components is the same as that of the first embodiment, and will not be repeated here.

The dehumidification modules 20 of the present embodiment are described as a first dehumidification module 2 and a second dehumidification module 26. The second dehumidification module 26 includes a second hollow body 262 and a second membrane element 264 therein. The second membrane element 264 is disposed in the second hollow body 262 , and the second membrane element 264 divides the second hollow body 262 into a third space 265 , a fourth space 266 , and a second air inlet 267 A third air outlet 268 is disposed on two sides of the second dehumidification module 26 and communicates with the third space 264 , and a fourth air outlet 269 is disposed on the second dehumidification module 26 and communicates with the fourth space 266 .

The mixed gas dehumidification module and its detection system 1 further include a second valve assembly 8, and the second valve assembly 8 is respectively provided with a plurality of rear air inlets 80, a first rear air outlet 83 and a second rear air inlet The air outlet 84, the rear air inlets 80 in this embodiment are described with the first rear air inlet 81 and a second rear air inlet 82, and will not be repeated hereafter, the second valve assembly 8 is provided And connected to the first pipe T1 and located between the first dehumidification module 2 and the analysis device 4, a fifth pipe T5 is respectively connected to the third air outlet 268 and the second rear air inlet 82, and the first The second rear air inlet 82 is in communication with the first rear air outlet 83 , and the second valve assembly 8 controls the first rear air inlet 81 to communicate with the first rear air outlet 83 and the second rear air inlet 82 in communication The second rear air outlet 84 or the first rear air inlet 81 communicates with the second rear air outlet 84 and the second rear air inlet 82 communicates with the first rear air outlet 83 .

Furthermore, a fifth pump 68 is further provided. The fifth pump 68 is provided and connected to a sixth pipeline T6, and the sixth pipeline T6 is respectively connected to the first pipeline on the first pump 3. T1, the second rear air outlet 84 and the second pump 5, and the fifth pump 68 generates a fifth suction force P5 on the first pipe T1, the second rear outlet on the first pump 3, respectively The air port 84 and the second pipe T2 on the second pump 5 generate the fifth suction force P5.

Please continue to refer to FIG. 4 , as shown in the figure, the outside of the mixed gas dehumidification module and its detection system 1 respectively input a mixed gas A of different or the same type to the first air inlet 226 and the second air inlet port 267, when the mixed gas A enters the first space 222 and the third space 265 from the first air inlet 226 and the second air inlet 267 respectively, because the first space 222 and the second space There is a pressure difference between the space 224 and the third space 265 and the fourth space 266, so that the water molecules W in the mixed gas A will be separated from the first membrane element 24 and the second membrane element 264 to the The second space 224 and the fourth space 266, the first dehumidification module 2 and the second dehumidification module 26 have the same structure for separating water molecules, which will not be repeated here. The organic matter gas VOCs will be connected to the first rear air inlet 81 and the second rear air inlet 82 through the first pipe T1 and the fifth pipe T5, respectively, and then the second valve assembly 8 will control the first rear air inlet 81. A rear air inlet 81 is connected to the first rear air outlet 83 or the second rear air inlet 82 is connected to the first rear air outlet 83, and the air inlet not connected to the first rear air outlet 83 will be connected to the second rear air outlet 83 As for the rear air outlet 84 , assuming that the first rear air inlet 81 is connected to the second rear air outlet 83 , the second rear air inlet 82 is connected to the second rear air outlet 84 .

Next, the first rear air inlet 81 of the volatile organic compound gas VOCs on the first pipe T1 is connected to the first rear air outlet 83 , and passes through the second valve assembly 8 and the analysis device 4 . The first pipeline T1 flows into the analysis device 4 for analysis, and the volatile organic compound gas VOCs after the analysis is transported through the first pipeline T1 due to the effect of the fifth suction force P5 generated by the fifth pump 68 After reaching the sixth pipeline T6, the fifth pump 68 is used to discharge to the outside.

In addition, the second rear air inlet 82 is connected to the second rear air outlet 84. When the volatile organic compound gas VOCs passes through the second rear air inlet 82 from the third space 265 through the fifth pipe T5, and The second rear air outlet 84 is sucked into the sixth pipe T6 by the fifth suction force P5 , and then discharged to the outside through the fifth pump 68 .

Furthermore, the second space 224 and the fourth space 266 in the first dehumidification module 2 and the second dehumidification module 26 are respectively provided with the second air outlet 228 and the fourth air outlet 269, and the first The second air outlet 228 and the fourth air outlet 269 are respectively connected/communicated with the second pipe T2, and the second pump 5 is respectively connected by the second air outlet 228 and the fourth air outlet 269 on the second pipe T2. The second suction force P2 is generated for the second space 224 and the fourth space 266, and the fifth pump 68 is connected to the second pipe T2, so that the suction force received in the second space 224 and the fourth space 266 is It is to add a fifth suction force P5 to the second suction force P2. When the water molecules W enter the second space 224 and the fourth space 266 through the first membrane element 24 and the second membrane element 264, the water molecules W can be sucked into the second pipe T2 through the second air outlet 228 and the fourth air outlet 269 , then sucked into the sixth pipe T6 through the second pipe T2 , and then sent to the sixth pipe T6 through the fifth pump 68 . out.

In addition, when the first rear gas outlet 83 of the second valve assembly 8 inputs gas into the first pipeline T1 and enters the first analysis device 4 , the gas is input to the inlet and outlet of the first pipeline T1 through the first rear gas outlet 83 . When the gas volume is too large and the gas cannot be discharged in real time, a second gas delivery pipe L2 can be further provided, and the second gas delivery pipe L2 is connected to the first rear gas outlet 83 and the analysis device 4. The pipeline T1 and the sixth pipeline T6, wherein the sixth pipeline T6 connected to the second gas pipeline L2 is the sixth pipeline T6 located between the first pipeline T1 and the fifth pump 68, and the second pipeline T6 is located between the first pipeline T1 and the fifth pump 68. The gas pipe L2 can divert the gas flow on the first pipe T1 or the volatile organic gas VOCs to the sixth pipe T6, and then discharge it to the outside through the fifth pump 68 on the sixth pipe T6.

Through the description of the above-mentioned fourth embodiment, the mixed gas dehumidification module and its detection system 1 can first separate the water molecules in the input mixed gas through the first dehumidification module and the second dehumidification module , and then the mixed gas (volatile organic compound gas) after separating the water molecules is respectively input to the second valve assembly, the second valve assembly selects/controls the input mixed gas, and the second valve assembly controls the The first rear air inlet communicates the first rear air outlet to the first duct or the second rear air inlet communicates the first rear air outlet to the first duct, and is not connected to the first duct of the first duct The rear air inlet or the second rear air inlet will be connected to the second rear air outlet to the sixth pipeline, and then the volatile organic matter gas entering the first pipeline will be transmitted to the analysis device for analysis, and the analysis is completed or Excessive volatile organic compound gas is input from the first pipeline to the sixth pipeline for discharge, and the first rear air inlet or the second rear air inlet that is not connected to the first rear air outlet is connected to the first rear air inlet. The second rear air outlet is input to the sixth pipeline for discharge. According to the above description, the first dehumidification module and the second dehumidification module are used to separate the water molecules of the mixed gas, and then connected to the second valve. The second valve assembly controls the communication of the pipeline, and then transports the mixed gas to be analyzed to the analysis device, and the gas that does not need to be analyzed is directly discharged from another pipeline, which is compared with the previous technology of separating water molecules. The operation cost and the energy consumption of consumables are relatively low, and the operation can be maintained for a long time, and the dehumidification efficiency and flow control can be adjusted according to the demand conditions.

In summary, the present invention generates a pressure difference between the first space and the second space through the first pump and the second pump, so that the mixed gas input into the first space can pass through the first space. Membrane component to separate water molecules, and then dry the mixed gas, the mixed gas after separation of water molecules is then transferred to the analysis device through the first pipeline through the action of the first suction for analysis, and the water in the second space Molecules are then discharged from the second pipeline through the action of the second suction. Therefore, the present invention has the advantages of convenient operation, no consumables, no downtime for maintenance and low energy consumption, and can maintain operation for a long time, and can be operated according to requirements. Condition adjustment dehumidification efficiency and flow control.

The above-mentioned embodiments and/or implementations are only used to illustrate the preferred embodiments and/or implementations for realizing the technology of the present invention, and are not intended to limit the implementation of the technology of the present invention in any form. Personnel, without departing from the scope of the technical means disclosed in the content of the present invention, may make some changes or modifications to other equivalent embodiments, but they should still be regarded as substantially the same technology or embodiment of the present invention.

Claims (10)

1. A system for detecting a mixture of gases, comprising:

a first dehumidifying module, which comprises a first hollow body, a first membrane component is arranged in the first hollow body, the first membrane component divides the first hollow body into a first space and a second space, the first hollow body comprises a first air inlet, a first air outlet and a second air outlet, the first air inlet and the first air outlet are respectively arranged at two sides of the first dehumidifying module and communicated with the first space, and the second air outlet is arranged on the first dehumidifying module and communicated with the second space;

a pressure module respectively connected to the first and second air outlets, and comprising

The first pump is arranged and connected on a first pipeline, one end of the first pipeline is connected with the first air outlet, and the first pump generates a first suction force to the first space; and

the second pump is arranged and connected with the second pipeline, one end of the second pipeline is connected with the second air outlet, and the second pump generates a second suction force to the second space;

The analysis device is arranged and connected with the first pipeline, and is positioned between the first pump and the first dehumidification module;

when a mixed gas enters the first space, the first pump and the second pump generate pressure difference, a plurality of water molecules in the mixed gas are separated into the second space through the first film assembly, and the mixed gas after the water molecules are separated is discharged from the first gas outlet.

2. The system of claim 1, further comprising a condensing device and a water storage device, wherein the condensing device is disposed and connected to the second pipeline, the condensing device is disposed between the first dehumidifying module and the second pump, the water storage device is disposed and connected to the second pipeline, and the water storage device is disposed between the condensing device and the second pump.

3. The system of claim 2, further comprising a third pump disposed in the second conduit and connected to the first dehumidification module and the second pump.

4. A dehumidification module for a mixed gas, comprising:

The first valve component is provided with a plurality of front air inlets, a first front air outlet and a second front air outlet respectively, the first front air outlet is connected with a third pipeline, and the second front air outlet is connected with a fourth pipeline;

a first dehumidifying module, which comprises a first hollow body, a first membrane component is arranged in the first hollow body, the first membrane component divides the first hollow body into a first space and a second space, the first hollow body comprises a first air inlet, a first air outlet and a second air outlet, the first air inlet and the first air outlet are respectively arranged at two sides of the first dehumidifying module and communicated with the first space, and the second air outlet is arranged on the first dehumidifying module and communicated with the second space; and

a pressure module, it connects this first gas outlet and this second gas outlet respectively, and this pressure module contains:

the first pump is arranged and connected on a first pipeline, one end of the first pipeline is connected with the first air outlet, and the first pump generates a first suction force to the first space; and

the second pump is arranged and connected with the second pipeline, one end of the second pipeline is connected with the second air outlet, and the second pump generates a second suction force to the second space;

The fourth pump is arranged and connected with the fourth pipeline, and the fourth pipeline is respectively connected with the second front air outlet, the second pipeline and the first pipeline;

the first valve assembly controls the first front air inlet to be communicated with the first front air outlet, the second front air inlet to be communicated with the second front air outlet or the first front air inlet to be communicated with the second front air outlet, and the second front air inlet to be communicated with the first front air outlet.

5. The module of claim 4, further comprising a first air pipe, wherein the first air pipe is connected to the third pipe and the fourth pipe respectively or one end of the first air pipe is connected to the first pipe between the front end of the first pump and the first dehumidifying module, and the other end of the first air pipe is connected to the first pipe at the rear end of the first pump.

6. The dehumidification module of claim 4, further comprising an analysis device disposed on and coupled to the first conduit, the analysis device being disposed between the first pump and the first dehumidification module.

7. A dehumidification module for a mixed gas, comprising:

The dehumidification modules respectively comprise a first hollow body, a first membrane assembly is arranged in the first hollow body, the first membrane assembly divides the first hollow body into a first space and a second space, the first hollow body comprises a first air inlet, a first air outlet and a second air outlet, the first air inlet and the first air outlet are respectively arranged at two sides of the first dehumidification module and communicated with the first space, and the second air outlet is arranged on the first dehumidification module and communicated with the second space;

the second valve assembly is provided with a plurality of rear air inlets, a first rear air outlet and a second rear air outlet respectively, the second valve assembly is arranged and connected with a first pipeline, the first rear air outlet is communicated with the first pipeline, the rear air inlets are respectively connected with the first air outlets of the dehumidifying modules, and the second valve assembly controls the air inlets to be communicated with the first rear air outlet and the second rear air outlet respectively;

a pressure module, it connects this first pipeline and a second pipeline respectively, and this second pipeline is the second gas outlet of connecting these some dehumidification modules respectively, and this pressure module contains:

The first pump is arranged and connected on the first pipeline, one end of the first pipeline is connected with the first rear air outlet, and the first pump respectively generates a first suction force to the first spaces of the dehumidification modules through the second valve assembly; and

and the second pump is arranged and connected on the second pipeline, one end of the second pipeline is connected with the second air outlet, and the second pump respectively generates second suction to the second spaces of the dehumidification modules.

8. The dehumidification module of claim 7, further comprising a fifth pump disposed and connected to a sixth pipeline, wherein the sixth pipeline is connected to the first pump, the second rear outlet and the second pump respectively.

9. The mixed gas dehumidification module as recited in claim 7, further comprising an analysis device disposed and coupled to the first conduit, the analysis device being positioned between the first pump and the second valve assembly.

10. The mixed gas dehumidification module as recited in claim 1, 4 or 7, wherein the material of the first membrane module is zeolite or graphene.

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