CN109187906A - Water quality detection device and detection method for industrial boiler - Google Patents
Water quality detection device and detection method for industrial boiler Download PDFInfo
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- CN109187906A CN109187906A CN201811218193.2A CN201811218193A CN109187906A CN 109187906 A CN109187906 A CN 109187906A CN 201811218193 A CN201811218193 A CN 201811218193A CN 109187906 A CN109187906 A CN 109187906A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a water quality detection device of an industrial boiler, which comprises a sampling device, a cooler, a master controller, a sewage discharge electromagnetic valve, a sampling electromagnetic valve, a temperature sensor, a pH value sensor, a conductivity sensor and a dosing device, wherein the sewage discharge electromagnetic valve, the pH value sensor, the conductivity sensor and the dosing device are all controlled by the master controller; the sampling electromagnetic valve and the temperature sensor are respectively and electrically connected with the controller; the cooler is connected to a sampling water outlet pipe of the industrial boiler; the temperature of the sampled water is accurately controlled by the first water outlet pipe, the second water outlet pipe and the sampled water temperature sensor of the cooler.
Description
Technical field
The present invention relates to the water quality detecting devices and detection side of a kind of water treatment technology more particularly to a kind of Industrial Boiler
Method.
Background technique
Industrial Boiler is important thermal powerplant, and it is each to be widely used in factory power, building and heating, people's lives etc.
A aspect, it is large number of；Industrial Boiler realizes that the most common carrier of thermal power transmitting is water (including water vapour), and water is in work
The thermal energy that fuel combustion is absorbed in industry boiler, is changed into the water or water vapour of high temperature, to realize thermal energy transmitting or power acting.
For the safety and energy-saving run of industrial boiler operation, boiler feed water needs dosing to reduce corrosion and fouling, and
The water of boiler internal needs frequent blowdown to reduce impurity content；Standard GB/T/T1576 " Industrial Boiler water quality " defines conjunction
The Industrial Boiler water quality indicator of lattice, if water quality is not inconsistent standardization regulation, boiler will be in dangerous or not energy-efficient operation
State；And in industrial boiler operation, it since original boiler water is constantly consumed, is continuously added with stylish supplement water, in this way
Water system is constantly in dynamic change, and boiler water quality, which will be controlled, provides model in standard GB/T/T1576 " Industrial Boiler water quality "
In enclosing, difficulty is bigger.
Currently, to realize that Industrial Boiler water quality is in long-term qualified purpose, it is main using automatic pollution discharge technology and automatic
Loading techniques；Automatic pollution discharge technology realizes automatic pollution discharge control by monitoring pollutant emission index；And Automatic Dosing technology is according to pot
The automatic feeding of furnace flow of inlet water control medicament；Due to influence boiler water quality situation cause be known as very much, as boiler operatiopn load,
Operator's habit, source quality variation etc..
Therefore above two technology all can not truly realize that water quality automatically adjusts, and especially water treatment agent is automatic
The control of the amount of addition relies on merely inflow, does not take monitoring means, therefore the also not feedback of Automatic Dosing, or need
The intervention of very important person.
In order to solve the above-mentioned technical problem, the Chinese patent that Authorization Notice No. is CN102621939B discloses a kind of industrial pot
Furnace monitoring water quality on line and intelligent controlling device and method；Including: sampling cooler, conductivity sensor, center control
Device, blowoff electromagnetic valve, pH value sensor, pH test cell and dosing pump；Water in boiler is sampled, and cooling water
Sample；Cooling water sample conductivity is monitored, and monitoring signals are fed back into central controller, when conductivity signal is more than limit value M1, in
Controller is entreated to automatically control blowdown；Cooling water sample pH value is monitored, and monitoring signals are fed back into central controller, pH value signal
When beyond domain value range M2, central controller automatically controls dosing；The pH value of cooling water sample is monitored, and monitoring signals are fed back
To central controller, when pH signal exceeds domain value range M3, central controller automatically controls dosing.Implement technology of the invention
Scheme is able to achieve scientific blowdown, reasonable dosing；The labor intensity for reducing boiler operating personnel, avoids because of reasons such as human negligences
Cause safety accident；Although the patent can monitor the water quality in Industrial Boiler automatically, do not carried out first to water logging
Monitoring, secondly the dosage of dosing cannot change with pH value, as dosage is not to influencing to work while will cause waste medicine
The treatment effect of industry boiler water quality.
Summary of the invention
The present invention is achieved by the following technical programs.
A kind of water quality detecting device of Industrial Boiler, including sampler, cooler, master controller, blowoff electromagnetic valve, take
Sample solenoid valve, temperature sensor, pH sensor, conductivity sensor, chemicals dosing plant, the blowoff electromagnetic valve, the pH value
Sensor, the conductivity sensor, the chemicals dosing plant are controlled by the master controller, and the cooler includes control
Device, total outlet pipe, the first outlet pipe, the second outlet pipe, the total outlet pipe, first outlet pipe, second outlet pipe
It is connected by the sampling solenoid valve, first water outlet pipe part is equipped with the temperature sensor, and second outlet pipe connects
It is connected to sampler；The sampling solenoid valve, the temperature sensor are electrically connected with the controller respectively；The sampling electromagnetism
Valve is 3 position-5 way solenoid valve；The cooler is connected at the sampling outlet pipe of Industrial Boiler.
Specifically, rated temperature value is arranged in the controller, when the temperature sensor detect described first
For the temperature of outlet pipe boiler water in rated temperature range value, the controller control 3 position-5 way solenoid valve closes described first
The second outlet pipe is opened while outlet pipe, starts the sampling operation for carrying out boiler water.
Preferably, the blowoff electromagnetic valve is connected on the sewage pipe of the Industrial Boiler, and the sewage pipe is equipped with row
Dirty filter screen, the sewage pipe are connected with sewage recovery tube, and the blowdown filter screen is 9 mesh stainless steel wire filter screens；The row
Dirty filter screen is movably connected on the sewage pipe, is convenient to clean the blowdown filter screen；By the blowdown filter screen filtration
Boiler water afterwards enters the sewage recovery tube and is recycled.
Preferably, the pH sensor is set in the sampler, and the sampler uses plastic production.
Preferably, the conductivity sensor is set in Industrial Boiler.
Preferably, the chemicals dosing plant is connected with the water inlet pipe of the Industrial Boiler, and the exit of the water inlet pipe is equipped with
Water inlet filter screen, the water inlet filter screen are 28 mesh stainless steel wire filter screens；The water inlet filter screen of setting can be by raw water
Particulate inclusions are filtered, and the mesh diameter of 28 mesh stainless steel wire filter screens is 0.6 millimeter.
A kind of water quality detection method of Industrial Boiler, comprising the following steps:
S1, the water in Industrial Boiler is sampled, and is cooled down by cooler, the temperature of water sample is 35 DEG C -40 DEG C；Water
The temperature of sample meets the standard of standard GB/T/T1576 " Industrial Boiler water quality ".
S2, the temperature value that sampling water is arranged in controller pass through sampling the first outlet pipe of solenoid valve control, the second water outlet
Whether pipe is opened；When initial, the water outlet of the first outlet pipe is opened, sampling water outflow, when temperature sensor detects the first outlet pipe
For water temperature at 35 DEG C -40 DEG C, sampling solenoid valve closes the first outlet pipe, and the second outlet pipe is opened, and sampling water outflow enters sampling
Device；
After S3, sampling water enter sampler, pH sensor detects the pH value of sampling water and the pH value that will test is sent to
Master controller is provided with specified pH value in master controller, when the pH value detected is more than the specified pH value of setting, master controller
Control automatically controls dosing pump dosing；
After S4, dosing, conductivity sensor detects water in Industrial Boiler, and the conductivity signal value transmission that will test
To master controller, conductivity signal limit value is set in master controller, when conductivity signal limit value is more than to be arranged in master controller
When the conductivity signal limit value of setting, master controller control of sewage disposal solenoid valve automatic pollution discharge.
Preferably, wherein in step S2 water sample flow control in 500-650ml/min；National standard meets GB/T1576
" Industrial Boiler water quality " determines range.
Preferably, the specified pH value being wherein arranged in master controller in step S3 includes M1 value range, M2 value range, M3 model
Enclose value；When the pH value detected is within the scope of M1, the dosage of dosing is D1；When the pH value detected is within the scope of M2, dosing
Dosage is D2；When the pH value detected is within the scope of M3, the dosage of dosing is D3.
Compared with prior art, the beneficial effects of the present invention are:
1, the temperature of sampling water is accurately controlled by the first outlet pipe of cooler, the second outlet pipe and sampling water temperature sensor
Degree is at 35 DEG C -40 DEG C；
2, determine that the dosage of dosing, dosing dosage more rationally reduce the loss of medicament according to the pH value detected；
3, the master controller being arranged is not required to very important person according to the conductivity signal limit value control of sewage disposal solenoid valve automatic pollution discharge detected
Work carries out blowdown, reduces the labor intensity of worker.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art do simple introduction, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic illustration of the embodiment of the present invention 1.
Fig. 2 is the control flow chart of the embodiment of the present invention 1.
Fig. 3 is the detection method flow chart of the embodiment of the present invention 2.
In figure: 1, sampler；2, cooler；201, controller；202, total outlet pipe；203, the first outlet pipe；204,
Second outlet pipe 3, blowoff electromagnetic valve；4, solenoid valve is sampled；5, temperature sensor；6, pH sensor；7, conductivity sensor；
8, chemicals dosing plant；9, Industrial Boiler；901, outlet pipe；902, sewage pipe；903, sewage recovery tube；904, water inlet pipe；10, total
Controller.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to various embodiments of the present invention, it is clear that is retouched
The embodiment stated is only a part of the embodiments of the present invention, instead of all the embodiments；Based on the embodiment of the present invention, originally
Field those of ordinary skill obtained all other embodiment without making creative work, belongs to this hair
Bright protected range.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention；In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance, and in the description of the present invention, is needed
Bright is unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can
To be to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary；For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1 and 2, a kind of water quality detecting device of Industrial Boiler, including sampler 1, cooler 2, master controller 2, row
Dirty solenoid valve 3, sampling solenoid valve 4, temperature sensor 5, pH sensor 6, conductivity sensor 7, chemicals dosing plant 8, the row
Dirty solenoid valve 3, the pH sensor 6, the conductivity sensor 7, the chemicals dosing plant 8 are controlled by the master controller 2
System, the cooler 2 includes controller 201, total outlet pipe 202, the first outlet pipe 203, the second outlet pipe 204, described always to go out
Water pipe 202, first outlet pipe 203, second outlet pipe 204 are connected by the sampling solenoid valve 4, and described first
The temperature sensor 5 is equipped at outlet pipe 203, second outlet pipe 204 is connected with sampler 1；The sampling electromagnetism
Valve 4, the temperature sensor 5 are electrically connected with the controller 201 respectively；The sampling solenoid valve 4 is 3 position-5 way solenoid valve；
The cooler 2 is connected at the outlet pipe 901 of Industrial Boiler 9.
Specifically, rated temperature value is arranged in the controller 201, detected when the temperature sensor 5 described in
For the temperature of boiler water in rated temperature range value, the controller 201 controls 3 position-5 way solenoid valve in first outlet pipe 203
Second outlet pipe 204 is opened while closing the first outlet pipe 203, starts the sampling operation for carrying out boiler water, with
Ensure sample water optimum temperature value required for the pH sensor 6 in the sampler 1.
The blowoff electromagnetic valve 3 is connected on the sewage pipe 902 of the Industrial Boiler 9, and the sewage pipe 902 is equipped with row
Dirty filter screen, the sewage pipe 902 are connected with sewage recovery tube 903, and the blowdown filter screen is the filtering of 230 mesh stainless steel wires
Net；The blowdown filter screen is welded in the first connecting tube, one end of the sewage pipe 902 and the sewage recovery tube 903
One end is equipped with external screw thread, and the both ends of first connecting tube are equipped with internal screw thread compatible with external screw thread, and described first connects
One end of adapter tube is connected with the sewage pipe 902, and the other end of first connecting tube is connected with the sewage recovery tube.
The pH sensor 6 is set in the sampler 1, described to take sewage pipe sampling device 1 using plastic production.
The conductivity sensor 7 is set in the Industrial Boiler 9；It is arranged one on the inner wall of the Industrial Boiler 9
The conductivity sensor 7 is placed directly in annulus by annulus.
The chemicals dosing plant 8 is connected with the water inlet pipe 904 of the Industrial Boiler 9, and the exit of the water inlet pipe 904 is equipped with
Water inlet filter screen, the water inlet filter screen are 9 mesh stainless steel wire filter screens；The water inlet filter screen is welded on the second connecting tube
In pipe, the water outlet end of the water inlet pipe 904 is equipped with trapezoidal external screw thread, and the inner tubal wall at 11 both ends of the second connecting tube is equipped with
Trapezoidal internal thread compatible with trapezoidal external screw thread, one end of the water inlet pipe 904 are connected with second connecting tube.
Embodiment 2
As shown in figure 3, a kind of water quality detection method of Industrial Boiler, comprising the following steps:
S1, the water in Industrial Boiler 9 is sampled, and is cooled down by cooler 2, the temperature of water sample is 35 DEG C -40 DEG C；
S2, the temperature value that sampling water is arranged in controller 201 control the first outlet pipe 203, second by sampling solenoid valve 4
Whether outlet pipe 204 is opened；When initial, the first outlet pipe 203 is opened, sampling water outflow, when the detection of temperature sensor 5 first goes out
For the water temperature of water pipe 203 at 35 DEG C -40 DEG C, sampling solenoid valve 4 closes the first outlet pipe 203, and the second outlet pipe 204 is opened, taken
The outflow of sample water enters sampler 1；
After S3, sampling water enter sampler 1, pH sensor 6 detects the pH value of sampling water and the pH value that will test transmits
To master controller, specified pH value is provided in master controller, when the pH value detected is more than the specified pH value of setting, master control
Device 10 automatically controls dosing pump dosing；
After S3, dosing, conductivity sensor 7 detects water in Industrial Boiler 9, and the conductivity signal value that will test passes
It send to master controller 10, conductivity signal limit value is set in master controller 10, when conductivity signal limit value is more than to be arranged total
When the conductivity signal limit value that controller 10 is arranged, 10 control of sewage disposal solenoid valve of master controller, 3 automatic pollution discharge.
It is 600 mS/m in the conductivity signal limit value of the master controller 10 setting, when the conductivity signal limit detected
When value is greater than 600 mS/m of setting, 10 control of sewage disposal solenoid valve of master controller, 3 automatic pollution discharge.
Wherein in step S2 water sample flow control in 500-650ml/min.
The specified pH value being wherein arranged in master controller in step S3 includes M1 value range, M2 value range, M3 value range；When
For the pH value detected within the scope of M1, the dosage of dosing is D1；When the pH value detected is within the scope of M2, the dosage of dosing is
D2；When the pH value detected is within the scope of M3, the dosage of dosing is D3.
In the present embodiment, the drug of the dosing is the IS-102C of industrial (China) the Co., Ltd production in three Pus.When
The pH value detected in 9.0-10.0 (including 10.0), the dosage of dosing are 80 mg/L -100mg/L；As the pH detected
For value in 10.0-10.0 (including 10.0), the dosage of dosing is 101 mg/L -100mg/L；When the pH value of detection is in 10.0-
When 15.0 (including 15.0), the dosage of dosing is 101 mg/L -150mg/L；When the pH value detected is 15.0 or more, stop
Furnace carries out maintenance and dirty removing processing.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of water quality detecting device of Industrial Boiler, including sampler (1), cooler (2), master controller (10), blowdown
Solenoid valve (3), sampling solenoid valve (4), temperature sensor (5), pH sensor (6), conductivity sensor (7), chemicals dosing plant
(8), the blowoff electromagnetic valve (3), the pH sensor (6), the conductivity sensor (7), the chemicals dosing plant (8) are equal
By the master controller (2) control, which is characterized in that the cooler (2) include controller (201), total outlet pipe (202),
First outlet pipe (203), the second outlet pipe (204), the total outlet pipe (202), first outlet pipe (203), described
Two outlet pipes (204) are connected by the sampling solenoid valve (4), and the temperature is equipped at first outlet pipe (203) and is passed
Sensor (5), second outlet pipe (204) are connected with sampler (1)；The sampling solenoid valve (4), the temperature sensor
(5) it is electrically connected respectively with the controller (201)；The sampling solenoid valve (4) is 3 position-5 way solenoid valve；The cooler
(2) it is connected at the outlet pipe (901) of Industrial Boiler (9).
2. a kind of water quality detecting device of Industrial Boiler according to claim 1, which is characterized in that the blowoff electromagnetic valve
(3) it is connected on the sewage pipe (902) of the Industrial Boiler (9), the sewage pipe (902) is equipped with blowdown filter screen, described
Sewage pipe (902) is connected with sewage recovery tube (903), and the blowdown filter screen is 10 mesh stainless steel wire filter screens.
3. a kind of water quality detecting device of Industrial Boiler according to claim 1, which is characterized in that the pH sensor
(6) it is set in the sampler (1), the sampler (1) uses plastic production.
4. a kind of water quality detecting device of Industrial Boiler according to claim 1, which is characterized in that the conductivity sensor
(7) it is set in the Industrial Boiler (9).
5. a kind of water quality detecting device of Industrial Boiler according to claim 1, which is characterized in that the chemicals dosing plant (8)
It is connected with the water inlet pipe (904) of the Industrial Boiler (9), the exit of the water inlet pipe (904) is equipped with water inlet filter screen, described
Water inlet filter screen is 28 mesh stainless steel wire filter screens.
6. a kind of water quality detection method of Industrial Boiler, which comprises the following steps:
S1, the water in Industrial Boiler (9) being sampled, and cooled down by cooler (2), the temperature of water sample is 35 DEG C-
40℃；
S2, the temperature value that sampling water is arranged in controller (201) simultaneously control the first outlet pipe by sampling solenoid valve (4)
(203), whether the second outlet pipe (204) is opened；When initial, the first outlet pipe (203) water outlet is opened, and temperature is worked as in sampling water outflow
The water temperature of sensor (5) detection the first outlet pipe (203) is spent at 35 DEG C -40 DEG C, and the first outlet pipe is closed in sampling solenoid valve (4)
(203) the second outlet pipe (204) is opened while, and sampling water outflow enters sampler (1)；
After S3, sampling water enter sampler, pH sensor detects the pH value of sampling water and the pH value that will test is sent to
Master controller is provided with specified pH value in master controller, when the pH value detected is more than the specified pH value of setting, master controller
(10) dosing pump Automatic Dosing is controlled；
After S4, dosing, conductivity signal that conductivity sensor (7) is detected to Industrial Boiler (9) interior water, and be will test
Value is sent to master controller (10), conductivity signal limit value is arranged in master controller (10), when conductivity signal limit value is more than
It is arranged in the conductivity signal limit value of master controller (10) setting, master controller (10) control of sewage disposal solenoid valve (3) is arranged automatically
It is dirty.
7. a kind of water quality detection method of Industrial Boiler according to claim 6, which is characterized in that wherein water in step S2
Sample flow control is in 500-650ml/min.
8. a kind of water quality detection method of Industrial Boiler according to claim 6, which is characterized in that wherein total in step S3
The specified pH value being arranged in controller (10) includes M1 value range, M2 value range, M3 value range；When the pH value detected is in M1 model
In enclosing, the dosage of dosing is D1；When the pH value detected is within the scope of M2, the dosage of dosing is D2；When the pH value detected exists
Within the scope of M3, the dosage of dosing is D3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811218193.2A CN109187906A (en) | 2018-10-19 | 2018-10-19 | Water quality detection device and detection method for industrial boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811218193.2A CN109187906A (en) | 2018-10-19 | 2018-10-19 | Water quality detection device and detection method for industrial boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109187906A true CN109187906A (en) | 2019-01-11 |
Family
ID=64945676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811218193.2A Pending CN109187906A (en) | 2018-10-19 | 2018-10-19 | Water quality detection device and detection method for industrial boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109187906A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668758A (en) * | 2019-02-28 | 2019-04-23 | 栾东存 | A kind of boiler water quality automatic sampling device |
| CN109708921A (en) * | 2019-02-28 | 2019-05-03 | 栾东存 | A portable boiler water quality sampling device |
| CN110208482A (en) * | 2019-07-01 | 2019-09-06 | 广东省特种设备检测研究院珠海检测院 | A kind of Industrial Boiler Water Vapor Quality on-line detecting system |
| CN119354606A (en) * | 2024-10-24 | 2025-01-24 | 国能广投北海发电有限公司 | A water vapor sampling device and a sewage discharge method thereof |
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Cited By (4)
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Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |