CN216815149U - Gas-gas energy exchange device and dryer system - Google Patents
Gas-gas energy exchange device and dryer system Download PDFInfo
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- CN216815149U CN216815149U CN202122781060.XU CN202122781060U CN216815149U CN 216815149 U CN216815149 U CN 216815149U CN 202122781060 U CN202122781060 U CN 202122781060U CN 216815149 U CN216815149 U CN 216815149U
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- 239000007789 gas Substances 0.000 claims abstract description 198
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 239000002912 waste gas Substances 0.000 claims abstract description 31
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000004071 soot Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 11
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a gas-gas energy exchange device and a dryer system, wherein the gas-gas energy exchange device is applied to a dryer and comprises an air duct frame, a gas exchanger and a heating device, the gas exchanger is provided with two gas channels for exchanging heat of two groups of gases, and the two gas channels are respectively communicated with a low-temperature gas source and an exhaust pipe of the dryer so as to transfer the heat of high-temperature waste gas exhausted by the exhaust pipe to make-up gas of the low-temperature gas source; the gas exchanger is detachably arranged in the air duct frame; the heating device is used for heating introduced gas, the gas inlet end of the heating device is communicated with a leading-out pipeline used for leading out the heated supplementary gas in the gas exchanger, and the gas outlet end of the heating device is communicated with an air inlet pipe of the dryer. The gas-gas energy exchange device can reduce the waste of energy consumption, thereby achieving the purpose of energy conservation.
Description
Technical Field
The utility model relates to the technical field of drying system design, in particular to a gas-gas energy exchange device. In addition, the utility model also relates to a dryer system comprising the gas-gas energy exchange device.
Background
The exhaust temperatures of coating and printing drying systems often exceed 80 ℃, while exhaust gases at higher temperatures are typically vented directly to the atmosphere, resulting in wasted energy consumption.
The dryer with the temperature of more than 130 ℃ and the high humidity generally needs higher air exhaust amount and air supplement, but in the prior art, the dryer with the high air exhaust amount can not supply a large amount of air, because the temperature of the air supply is far lower than the air exhaust temperature, the internal environment temperature is easily influenced by the large amount of low-temperature air supply, but the air exhaust amount is large, but the air supply amount is small, so that more energy consumption is easily wasted.
In summary, how to solve the problem of energy waste is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a gas-gas energy exchange device, which can reduce the waste of energy consumption.
Another object of the present invention is to provide a dryer system including the above-mentioned gas-gas energy exchange device.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a gas-gas energy exchange device is characterized by being applied to a dryer and comprising:
an air duct frame;
the gas exchanger is provided with two gas channels for exchanging heat of two groups of gases, and the two gas channels are respectively communicated with a low-temperature gas source and an exhaust pipe of the dryer so as to transfer the heat of high-temperature waste gas exhausted by the exhaust pipe to supplementary gas of the low-temperature gas source; the air exchanger is detachably arranged in the air duct frame;
and the air inlet end of the heating device is communicated with a lead-out pipeline used for leading out the warmed supplementary gas in the gas exchanger, and the air outlet end of the heating device is communicated with an air inlet pipe of the dryer.
Preferably, the gas exchanger comprises a corrugated gas exchange device having at least two adjacently disposed channels for heat exchange through a connecting wall, one of the adjacently disposed channels being in communication with the exhaust duct and the other being in communication with the cryogenic gas source.
Preferably, the number of the gas exchangers is at least two, and the gas exchangers can be respectively detached from or connected with the air duct frame.
Preferably, two of said gas exchangers are arranged in series or in parallel.
Preferably, the outlet pipeline of the gas exchanger is communicated with the air inlet end of the heating device through an adjustable damper.
Preferably, a blower is arranged at the communication position of the gas exchanger and the heating device.
Preferably, the heat recovery device further comprises a heat secondary recovery device, wherein the heat secondary recovery device comprises:
an evaporator, an expansion valve, a condenser and a compressor which are connected to form a loop; the evaporator is arranged at a discharge port of the gas exchanger for discharging high-temperature waste gas so as to absorb the waste heat of the high-temperature waste gas after primary heat exchange;
and one end of the air supplementing channel is connected with a second air supplementing source, the condenser is positioned in the air supplementing channel, and the air outlet of the air supplementing channel is connected with the air inlet of the heating device.
Preferably, the exhaust port is provided with a filter for filtering soot.
Preferably, the air outlet of the air supply channel is communicated with the air inlet of the heating device through a flow adjusting air door.
A dryer system comprises a dryer and the gas-gas energy exchange device.
The utility model provides a gas-gas energy exchange device, which comprises a gas exchanger and a heating device, wherein the gas exchanger is communicated with an exhaust pipe of a dryer, and the heating device is communicated with an air inlet pipe of the dryer, so when the dryer discharges high-temperature waste gas, the high-temperature waste gas enters the gas exchanger through the exhaust pipe and is subjected to heat exchange with supplementary gas provided by a low-temperature gas source, the high-temperature waste gas and the supplementary gas are only subjected to heat exchange and do not relate to mixing and exchange of substances, the high-temperature waste gas after the heat exchange is cooled and can be discharged from an exhaust port of the gas exchanger, the heated supplementary gas enters the heating device and is reheated, and the heated supplementary gas enters the dryer through the air inlet pipe of the dryer. Wherein, the gas exchanger can be dismantled in the wind channel frame and connect to realize changing, wasing, thereby avoid leading to the reduction of heat exchange efficiency because of gas exchanger blocks up.
Through gas exchanger and heating device's setting, can give the low temperature air supply with the heat transfer of high temperature waste gas, reduce the required energy consumption of heating low temperature air supply, avoid the heat waste of high temperature waste gas, and the low temperature air supply after the heating is difficult for influencing the inside temperature of drying-machine behind getting into the drying-machine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a gas-gas energy exchange device provided by the present invention;
fig. 2 is a schematic connection diagram of an evaporator and a condenser of the gas-gas energy exchange device provided by the utility model.
In FIGS. 1-2:
1 is an exhaust pipe, 2 is a gas exchanger, 3 is a blower, 4 is a heating device, 5 is an air inlet pipe, 6 is an adjustable air door, 7 is an evaporator, 8 is an expansion valve, 9 is a condenser, 10 is a compressor, and 11 is a dryer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a gas-gas energy exchange device which can reduce the waste of energy consumption. In addition, another core of the utility model is to provide a dryer system comprising the gas-gas energy exchange device.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a gas-gas energy exchange device; fig. 2 is a schematic diagram of the connection of the evaporator and the condenser.
The application provides a gas-gas energy exchange device, which is applied to a dryer and comprises an air duct frame, a gas exchanger 2 and a heating device 4, wherein the gas exchanger 2 is provided with two gas channels for heat exchange of two groups of gases, and the two gas channels are respectively communicated with a low-temperature gas source and an exhaust pipe 1 of the dryer 11 so as to transfer the heat of high-temperature waste gas exhausted by the exhaust pipe 1 to supplementary gas of the low-temperature gas source; the gas exchanger 2 is detachably arranged in the air duct frame; the heating device 4 is used for heating the introduced gas, the gas inlet end of the heating device 4 is communicated with a leading-out pipeline used for leading out the heated supplementary gas in the gas exchanger 2, and the gas outlet end of the heating device 4 is communicated with an air inlet pipe 5 of the dryer 11.
Specifically, high-temperature waste gas discharged by the dryer 11 reaches the gas exchanger 2 from the gas channel through the exhaust pipe 1, supplementary gas in the low-temperature gas source enters from another gas channel of the gas exchanger 2, only heat exchange is performed between the high-temperature waste gas and the supplementary gas in the gas exchanger 2, mixing and exchange of substances are not performed, heat of the high-temperature waste gas is transferred to the supplementary gas, so that the high-temperature waste gas is cooled, the supplementary gas is heated, the high-temperature waste gas is discharged from an exhaust port of the gas exchanger 2 after being cooled, the supplementary gas after being heated reaches the heating device 4 from a leading-out pipeline of the gas exchanger 2, the heating device 4 secondarily heats the supplementary gas, and the supplementary gas after being secondarily heated can directly enter the dryer 11 through the air inlet pipe 5.
Through the setting of gas exchanger 2 and heating device 4, can utilize the heat of high temperature waste gas, reduce the waste of energy consumption to because gas exchanger 2 detachably locates in the wind channel frame, consequently can directly dismantle it when gas exchanger 2 blocks up and clean, thereby improve exchange efficiency, also can adapt to more abominable operational environment simultaneously.
In addition, when the temperature inside the dryer 11 is high, the exhaust air volume of the dryer 11 is large, and the supplementary air can be heated to a temperature close to the temperature inside the dryer 11, so that the intake air volume of the dryer is increased, and the supplementary air heated to a temperature close to the temperature inside the dryer 11 can avoid the influence of the too low temperature of the supplementary air on the temperature inside the dryer 11. Alternatively, the make-up gas may be heated to other temperatures.
Optionally, the heating device 4 is an electrical heating tube or other device.
Optionally, the low-temperature gas source may be external, the gas exchanger 2 is directly communicated with the outside, the air is a make-up gas, and the low-temperature gas source may also be a gas source device filled with the low-temperature gas.
On the basis of the above-described embodiment, the gas exchanger 2 comprises a corrugated gas exchange device having at least two adjacently disposed passages for heat exchange through a connecting wall, one of the adjacently disposed passages being in communication with the exhaust duct 1 and the other being in communication with a source of cryogenic gas.
Specifically, flute formula gas exchange device is the cuboid device, and cuboid device is inside to divide into two-layer at least through the connecting wall, and the one deck is a passageway to every passageway is flute formula structure, one in two adjacent passageways and exhaust pipe 1 intercommunication, another and low temperature air supply intercommunication, high temperature waste gas and supplementary gas separate the connecting wall when the passageway and carry out the heat exchange.
High temperature waste gas and make-up gas carry out the heat exchange respectively in adjacent setting, two passageways separated through the connecting wall, can avoid high temperature waste gas and make-up gas to mix the inconvenience that causes follow-up heating to every passageway is flute formula structure, can guarantee that high temperature waste gas and make-up gas can the even heat transfer.
Optionally, the through hole of the corrugated structure may be set as a small channel, two adjacent small channels are separated by a connecting wall, one of the two adjacent small channels is communicated with the exhaust pipe 1, and the other is communicated with the low-temperature gas source, or high-temperature exhaust gas and supplementary gas are subjected to heat exchange in other forms.
Alternatively, the corrugated gas exchange device may be a cylinder or other structure.
On the basis of the above embodiment, at least two gas exchangers 2 are provided, and can be respectively detached from or connected to the air duct frame.
Specifically, two or more gas exchangers 2 are provided, when one gas exchanger 2 is blocked, the gas exchanger can be disassembled and cleaned, and other gas exchangers 2 are still in working states in the cleaning process of the gas exchanger 2, so that the exchange efficiency can be ensured, and the waste of energy consumption is reduced.
Alternatively, the gas exchanger 2 may be integrally provided to be detached from or attached to the duct frame.
On the basis of the above-described embodiment, two gas exchangers 2 are arranged in series or in parallel.
When the two gas exchangers 2 are arranged in series, the two gas exchangers 2 can be respectively communicated with low-temperature gas sources with different temperatures, the heat of high-temperature waste gas can be further recovered, and the route stops running when one of the gas exchangers is disassembled and cleaned.
When two gas exchangers 2 are arranged in parallel, when one gas exchanger 2 is disassembled for cleaning, the other gas exchanger 2 can still work normally, and the exchange efficiency is ensured.
Optionally, a switching valve or other devices are arranged at the communication position of each gas exchanger 2 and the exhaust pipe 1 to control the opening and closing of the pipeline, so that the waste of energy consumption is reduced.
On the basis of the above embodiment, the outlet pipeline of the gas exchanger 2 is communicated with the inlet end of the heating device 4 through the adjustable damper 6.
Specifically, the adjustable air door 6 is arranged between the gas exchanger 2 and the heating device 4, the opening and closing of the adjustable air door 6 are controlled to control the passage between the gas exchanger 2 and the heating device 4, and the air intake entering the heating device 4 from the gas exchanger 2 can be controlled by adjusting the opening and closing size of the adjustable air door 6, so that the switching device can be suitable for more dryers.
When the temperature in the dryer 11 is higher, the exhaust air volume is large, so the adjustable air door 6 can be adjusted to increase the intake air volume to ensure the exchange efficiency and reduce the waste of energy consumption.
Optionally, the air inlet amount can also be controlled by replacing meshes with different sizes or in other modes.
In addition to the above embodiments, a blower 3 is provided at the communication between the gas exchanger 2 and the heating device 4.
In a specific embodiment, the arrangement of the structures of the parts may be specifically that the exhaust duct 1 is disposed at the left side of the gas exchanger 2, the low-temperature gas source is disposed above the gas exchanger 2, the blower 3 is disposed below the gas exchanger 2, the heating device 4 is disposed at the left side of the blower 3, and the air inlet duct 5 is disposed at the left side of the heating device 4, so as to form a loop, and the communication between the gas exchanger 2 and the heating device 4 is located at the turning point.
Because the low-temperature gas source needs to be bent after passing through the gas exchanger 2 to enter the heating device 4 and the air inlet pipe 5, the blower 3 is arranged at the bending point to accelerate the flow rate of the low-temperature gas source and control the flow direction of the low-temperature gas source to the appointed direction, thereby improving the working efficiency.
Alternatively, a power device may be provided in the low-temperature gas source to make the low-temperature gas source enter the gas exchanger 2 and reach the heating device 4 and the air inlet pipe 5 at a certain speed, or other methods may be used.
On the basis of any one scheme, the system further comprises a heat secondary recovery device, wherein the heat secondary recovery device comprises an evaporator 7, an expansion valve 8, a condenser 9, a compressor 10 and an air supplementing channel;
the evaporator 7, the expansion valve 8, the condenser 9 and the compressor 10 are connected to form a loop; the evaporator 7 is arranged at a discharge port on the gas exchanger 2 for discharging high-temperature waste gas to absorb the waste heat of the high-temperature waste gas after primary heat exchange;
one end of the air supply channel is connected with a second air supply source, the condenser 9 is positioned in the air supply channel, and the air outlet of the air supply channel is connected with the air inlet of the heating device 4.
Specifically, the compressor 10 is connected to the evaporator 7 and the condenser 9, respectively, and an outlet of the evaporator 7 and an inlet of the condenser 9 are connected through the expansion valve 8.
The compressor 10 is driven by electric energy, so that the refrigerant is circulated between the evaporator 7 and the condenser 9, the refrigerant is gasified in the evaporator 7 to absorb heat, thereby absorbing the waste heat of high-temperature waste gas after primary heat exchange, the gasified refrigerant reaches the condenser 9 through the expansion valve 8, because the condenser 9 is positioned in the air supply channel, and one end of the condenser 9 is connected with a second supplementary air source, the gasified refrigerant is liquefied and released heat in the condenser 9, the second supplementary air source is preheated and warmed, so that the energy required when the heating device 4 heats the second supplementary air source is reduced, and the preheated second supplementary air source enters the dryer 11 after being heated for the second time by the heating device 4.
Set up heat second grade recovery unit and can carry out secondary heat recovery to the high temperature waste gas after the primary heat exchange to heat transfer to the second with secondary recovery supplements the air supply, thereby reduces the waste of energy consumption, and improves heat exchange efficiency.
In addition, the expansion valve 8 can control the flow rate of the refrigerant to ensure that the refrigerant coming out of the evaporator 7 is completely gaseous refrigerant, and if the flow rate is too large, the outlet of the evaporator 7 contains liquid refrigerant, which may enter the compressor 10 to generate liquid impact. Alternatively, the flow rate of the refrigerant may be controlled in other manners.
On the basis of the above-described embodiment, the discharge port is provided with a filter for filtering the soot.
Specifically, the outlet of the gas exchanger 2 for discharging high-temperature exhaust gas is provided with a filter, so that substances such as smoke and dust in the high-temperature exhaust gas can be filtered, the evaporator 7 is prevented from being blocked and is not easy to clean, and meanwhile, the pollution to the environment is reduced.
Alternatively, the filter may be disposed at the gas inlet of the gas exchanger 2 or at another position.
On the basis of the above embodiment, the air outlet of the air supply passage is communicated with the air inlet of the heating device 4 through the flow regulating damper.
Specifically, set up flow control air door between the gas outlet of tonifying qi passageway and heating device 4's air inlet, the air input of the opening and shutting of steerable tonifying qi passageway and second supplementary air supply, when tonifying qi passageway closed, heat second grade recovery unit stop work, only carries out the heat transfer and heats high temperature waste gas and supplementary gas by gas exchanger 2 and heating device 4.
Optionally, the air inlet amount can also be controlled by replacing meshes with different sizes or in other modes.
According to the utility model, the gas exchanger 2, the heating device 4 and the heat secondary recovery device are used for recovering heat of high-temperature waste gas discharged by the dryer 11, and the recovered heat is transferred to the newly added low-temperature gas source, so that the low-temperature gas source is heated to a temperature close to the internal temperature of the dryer 11, thereby reducing the waste of energy consumption, achieving the purpose of energy conservation, and not causing excessive influence on the internal temperature of the dryer 11.
In addition to the above gas-gas energy exchange device, the present invention also provides a dryer system including the dryer disclosed in the above embodiments, including a dryer and the above gas-gas energy exchange device, where the gas-gas energy exchange device performs exhaust and gas supply preheating for the dryer, and the structure of other parts of the dryer system refers to the prior art, and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The gas-gas energy exchange device and the dryer system provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A gas-gas energy exchange device is characterized by being applied to a dryer and comprising:
an air duct frame;
the gas exchanger (2) is provided with two gas channels for exchanging heat of two groups of gases, and the two gas channels are respectively communicated with a low-temperature gas source and an exhaust pipe (1) of the dryer (11) so as to transfer the heat of high-temperature waste gas exhausted by the exhaust pipe (1) to supplementary gas of the low-temperature gas source; the gas exchanger (2) is detachably arranged in the air duct frame;
the heating device (4) is used for heating introduced gas, the gas inlet end of the heating device (4) is communicated with a leading-out pipeline which is used for leading out the warmed supplementary gas in the gas exchanger (2), and the gas outlet end of the heating device (4) is communicated with an air inlet pipe (5) of the dryer (11).
2. Gas-gas energy exchange device according to claim 1, wherein the gas exchanger (2) comprises a corrugated gas exchange device having at least two adjacently arranged channels for heat exchange through a connecting wall, one of the adjacently arranged channels being in communication with the exhaust duct (1) and the other being in communication with the cryogenic gas source.
3. Gas-gas energy exchange device according to claim 2, wherein at least two gas exchangers (2) are provided and can be detached from or connected to the air duct frame, respectively.
4. Gas-gas energy exchange device according to claim 3, wherein two gas exchangers (2) are arranged in series or in parallel.
5. Gas-gas energy exchange device according to claim 1, characterized in that the outlet conduit of the gas exchanger (2) communicates with the inlet end of the heating device (4) through an adjustable damper (6).
6. Gas-gas energy exchange device according to claim 5, wherein a blower (3) is provided at the connection of the gas exchanger (2) and the heating device (4).
7. The gas-gas energy exchange device of any one of claims 1 to 6, further comprising a secondary heat recovery device, said secondary heat recovery device comprising:
an evaporator (7), an expansion valve (8), a condenser (9) and a compressor (10) which are connected to form a loop; the evaporator (7) is arranged at a discharge port of the gas exchanger (2) for discharging high-temperature waste gas to absorb the waste heat of the high-temperature waste gas after primary heat exchange;
and one end of the air supplementing channel is connected with a second air supplementing source, the condenser (9) is positioned in the air supplementing channel, and the air outlet of the air supplementing channel is connected with the air inlet of the heating device (4).
8. Gas-gas energy exchange device according to claim 7, wherein the discharge opening is provided with a filter for filtering soot.
9. The gas-gas energy exchange device according to claim 7, wherein the gas outlet of the gas supply channel is communicated with the gas inlet of the heating device (4) through a flow regulating damper.
10. A dryer system comprising a dryer (11), characterized by further comprising a gas-to-gas energy exchange device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122781060.XU CN216815149U (en) | 2021-11-15 | 2021-11-15 | Gas-gas energy exchange device and dryer system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122781060.XU CN216815149U (en) | 2021-11-15 | 2021-11-15 | Gas-gas energy exchange device and dryer system |
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| CN216815149U true CN216815149U (en) | 2022-06-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001579A (en) * | 2021-11-15 | 2022-02-01 | 海南赛诺实业有限公司 | Gas-gas energy exchange device and coating dryer system |
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- 2021-11-15 CN CN202122781060.XU patent/CN216815149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001579A (en) * | 2021-11-15 | 2022-02-01 | 海南赛诺实业有限公司 | Gas-gas energy exchange device and coating dryer system |
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