CN215175121U - Waste heat recycling device - Google Patents
Waste heat recycling device Download PDFInfo
- Publication number
- CN215175121U CN215175121U CN202120573747.1U CN202120573747U CN215175121U CN 215175121 U CN215175121 U CN 215175121U CN 202120573747 U CN202120573747 U CN 202120573747U CN 215175121 U CN215175121 U CN 215175121U
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- chamber
- pipe
- preheating
- waste heat
- heat recovery
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- 239000002918 waste heat Substances 0.000 title claims abstract description 56
- 238000004064 recycling Methods 0.000 title abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000011084 recovery Methods 0.000 claims abstract description 48
- 238000001914 filtration Methods 0.000 claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 239000002912 waste gas Substances 0.000 abstract description 29
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000012855 volatile organic compound Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003394 haemopoietic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of environmental protection treatment, in particular to a waste heat recycling device, which comprises a gas suction filtering mechanism, a gas combustion mechanism, a waste heat recycling mechanism and an exhaust mechanism; the gas combustion mechanism comprises a preheating chamber and a combustion chamber, wherein a first preheating pipe and a second preheating pipe are arranged in the preheating chamber; the waste heat recovery mechanism comprises a waste heat recovery chamber, a heat transfer pipe for supplying water to flow is arranged in the waste heat recovery chamber, and an air outlet is arranged on the waste heat recovery chamber; a main pipe is connected between the waste heat recovery chamber and the combustion chamber, a branch pipe is connected to the side wall of the main pipe, and an adjusting part is arranged on the branch pipe; one end of the first preheating pipe is communicated with the air outlet, and the other end of the first preheating pipe is communicated with the exhaust mechanism; one end of the second preheating pipe is communicated with the branch pipe, and the other end of the second preheating pipe is communicated with the exhaust mechanism. In this scheme, the gaseous heat after can be more abundant utilization burning improves the utilization ratio of resource, also can guarantee simultaneously to preheat indoor waste gas and can obtain better preheating.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection is handled, concretely relates to waste heat recovery utilizes device.
Background
In a printing room or the like, a large amount of VOC-containing exhaust gas is present in the printing room due to volatilization of a solvent or the like. VOC is the english abbreviation of volatile organic compounds, VOC in the general sense is the commanding organic matter, but the definition in the environmental protection sense refers to an active class of volatile organic matter, i.e. the class of volatile organic matter that can cause harm. The VOC waste gas is toxic and harmful gas, and not only can cause serious environmental pollution when released in the air, but also can bring serious harm to the nervous system and hematopoietic function if a human body is contacted or inhaled for a long time, and even can cause canceration and other serious diseases until death. The existing VOC gas is mainly treated by a combustion mode, and the combusted gas can be recovered by a heat exchanger, but the energy can not be fully recovered, so that the utilization rate of energy is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is anticipated to provide a waste heat recovery utilizes device to solve the gas energy after the burning and can not obtain abundant recycle, the lower problem of the utilization ratio of the energy.
In order to achieve the above purpose, the utility model discloses a scheme does: the waste heat recycling device comprises a gas suction filtering mechanism, a gas combustion mechanism, a waste heat recycling mechanism and an exhaust mechanism which are sequentially communicated; the gas combustion mechanism comprises a preheating chamber and a combustion chamber positioned above the preheating chamber, the lower part of the combustion chamber is communicated with the upper part of the preheating chamber, and a first preheating pipe and a second preheating pipe are arranged in the preheating chamber; the waste heat recovery mechanism comprises a waste heat recovery chamber, a heat transfer pipe for supplying water to flow is arranged in the waste heat recovery chamber, and an air outlet is arranged on the waste heat recovery chamber; a main pipe is connected between the waste heat recovery chamber and the combustion chamber, a branch pipe is connected to the side wall of the main pipe, and an adjusting part for adjusting the size of a branch pipe opening is arranged on the branch pipe; one end of the first preheating pipe is communicated with the air outlet, and the other end of the first preheating pipe is communicated with the exhaust mechanism; one end of the second preheating pipe is communicated with the branch pipe, and the other end of the second preheating pipe is communicated with the exhaust mechanism.
The working principle and the beneficial effects of the scheme are as follows: when the VOC-containing waste gas needs to be cleaned, the gas suction and filtration mechanism works, the waste gas is sucked into the gas suction and filtration mechanism, and the gas suction and filtration mechanism carries out primary filtration to remove impurities such as dust in the waste gas. The filtered waste gas enters the preheating chamber to be preheated and then enters the combustion chamber to be combusted, most of the combusted gas enters the waste heat recovery chamber through the main pipe, and most of heat of the part of gas is recycled. The gas after the heat is primarily recovered by the waste heat recovery chamber enters the preheating chamber through the first preheating pipe, the waste gas in the preheating chamber is preheated, and finally the waste gas enters the exhaust mechanism. And a small part of the combusted gas entering the main pipe enters the second preheating pipe through the branch pipe and enters the preheating chamber through the second preheating pipe to preheat the waste gas in the preheating chamber.
The preheating chamber is internally provided with a first preheating pipe and a second preheating pipe, and the gas in the preheating chamber is preheated by the gas of which part of heat is recovered by the waste heat recovery chamber entering the first preheating pipe, so that the heat of the combusted gas is fully recycled. The branch pipe is arranged, so that a small part of combusted gas directly enters the preheating chamber through the second preheating pipe, and the waste gas in the preheating chamber can be sufficiently preheated. In this scheme, the gaseous heat after can be more abundant utilization burning improves the utilization ratio of resource, also can guarantee simultaneously to preheat indoor waste gas and can obtain better preheating.
Optionally, the adjusting part comprises a baffle, a support arranged on the outer wall of the branch pipe and a screw rod rotatably connected to the support, the baffle is slidably and hermetically connected to the side wall of one side of the branch pipe, one side of the baffle extends into the branch pipe, and the other side of the baffle extends out of the branch pipe; one end of the screw rod extends into the baffle and is in threaded connection with the baffle. The size of the inner diameter of the branch pipe can be adjusted through the adjusting part, so that the flow of gas flowing into the second preheating pipe is controlled. When the gas flow flowing into the second preheating pipe needs to be reduced, the screw rod is screwed in the fixed direction, so that the baffle plate moves towards one side of the inner part of the branch pipe, and when the gas flow flowing into the second preheating pipe needs to be increased, the screw rod is screwed in the opposite direction.
Optionally, the gas suction filtering mechanism comprises a filtering chamber, an activated carbon chamber, an air suction pipe and a negative pressure air suction pump installed on the air suction pipe, wherein a plurality of through holes are formed in one side of the filtering chamber, and a filtering screen plate opposite to the through holes is arranged in the filtering chamber; the filter chamber is connected with the active carbon chamber through a connecting pipe; one end of the air suction pipe is communicated with the activated carbon chamber, and the other end of the air suction pipe is communicated with the preheating chamber. The during operation of filter mechanism is inhaled to needs gas, starts the negative pressure aspiration pump, and under the effect of negative pressure aspiration pump, in external waste gas got into the filter chamber from the through-hole, waste gas can be earlier through the filtration of filter plate, then in getting into the active carbon room through the connecting pipe, the impurity in the waste gas is adsorbed once more to the active carbon for waste gas is cleaner.
Optionally, the second preheating pipe is located above the first preheating pipe, and one end of the suction pipe is opposite to the first preheating pipe. The temperature of the waste gas in the first preheating pipe is lower than that of the waste gas in the second preheating pipe, the waste gas introduced from the activated carbon chamber is firstly subjected to heat transfer with the first preheating pipe and then subjected to heat transfer with the second preheating pipe, the temperature of the waste gas can be increased in a gradient manner, and the waste gas preheating effect is good.
Optionally, a brush handle for cleaning the filter screen plate is slidably connected in the filter chamber, an iron block is arranged on the brush handle, and an electromagnet opposite to the iron block is arranged in the upper part of the filter chamber. After the filter screen plate is used for a period of time, a large amount of dust can be deposited on the filter screen plate to influence the normal work of the filter screen plate, the power supply of the electromagnet is switched on at the moment, the electromagnet generates magnetic attraction force on the iron block, the iron block and the brush handle overcome the action of self gravity and move upwards under the action of the magnetic attraction force, and the brush handle cleans the dust on the filter screen plate in the moving process. And the power supply of the electromagnet is disconnected, the iron block and the brush handle move downwards under the action of the gravity of the brush handle, and the brush handle cleans the dust on the filter screen plate again.
Optionally, a transverse clapboard and a vertical clapboard are arranged in the waste heat recovery chamber, the vertical clapboard divides the waste heat recovery chamber into a heat exchange cavity and a water cavity, the transverse clapboard is fixed in the water cavity, and the transverse clapboard divides the water cavity into a water inlet cavity and a water outlet cavity; the waste heat recovery chamber is provided with a water inlet communicated with the water inlet cavity and a water outlet communicated with the water outlet cavity; the air outlet and the main pipe are both communicated with the heat exchange cavity; the heat-transfer pipe is the U-shaped, and the heat-transfer pipe is equipped with many, and many heat-transfer pipes all are located the heat transfer intracavity, the one end and the intake antrum intercommunication of heat-transfer pipe, the other end and the play water cavity intercommunication of heat-transfer pipe. When the waste heat recovery chamber works, water to be heated is introduced into the water inlet, flows through the water inlet cavity and the heat transfer pipe in sequence, and is finally discharged from the water outlet cavity; meanwhile, the burnt waste gas enters the heat exchange cavity through the main pipe, the waste gas transfers heat to water in the heat transfer pipe, the temperature of the water is increased, and the waste gas is finally discharged through the air outlet after heat transfer.
Optionally, the exhaust mechanism comprises an exhaust chamber, a gas outlet is formed in the side wall of the exhaust chamber, and an air exhaust fan opposite to the gas outlet is mounted on the exhaust chamber; a plurality of dust removing cloth bags are arranged in the exhaust chamber. And an air exhaust fan is arranged, so that waste gas can be conveniently led out of the filtering mechanism, the gas combustion mechanism, the waste heat recovery mechanism and the exhaust mechanism. And a dust removal cloth bag is arranged to filter the burnt waste gas again, so that the discharged gas is ensured to be gas meeting the requirements.
Drawings
FIG. 1 is a top view of a waste heat recovery device;
FIG. 2 is a front sectional view of the gas combustion mechanism, the waste heat recovery mechanism, and the exhaust mechanism;
FIG. 3 is an enlarged view of portion A of FIG. 2;
figure 4 is a cross-sectional view in a front view of the filtering chamber.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a filter chamber 10, a through hole 11, a filter screen plate 12, a brush handle 13, an iron block 14, a connecting pipe 15, an activated carbon chamber 20, a waste heat recovery chamber 30, a water inlet cavity 31, a water outlet cavity 32, a heat exchange cavity 33, a transverse partition plate 34, a heat transfer pipe 35, a vertical partition plate 36, a water inlet pipe 37, a water outlet pipe 38, a combustion chamber 40, an exhaust chamber 50, a dust removal cloth bag 51, a gas outlet 52, an air extraction fan 53, an installation support 54, a preheating chamber 60, a first preheating pipe 61, a second preheating pipe 62, an air suction pipe 70, a negative pressure air extraction pump 71, a main pipe 80, a branch pipe 81, a screw rod 82, a support 83 and a baffle 84.
The embodiment is basically as shown in fig. 1 and fig. 2: the waste heat recycling device comprises a gas suction filtering mechanism, a gas combustion mechanism, a waste heat recycling mechanism and an exhaust mechanism which are sequentially communicated. The gas combustion mechanism comprises a preheating chamber 60 and a combustion chamber 40 positioned above the preheating chamber 60, and the lower part of the combustion chamber 40 is communicated with the upper part of the preheating chamber 60. The preheating chamber 60 is provided with a first preheating pipe 61 and a second preheating pipe 62, and the second preheating pipe 62 is located above the first preheating pipe 61.
The exhaust mechanism comprises an exhaust chamber 50, a gas outlet 52 is formed in the side wall of the exhaust chamber 50, an air extractor 53 opposite to the gas outlet 52 is installed on the exhaust chamber 50, and the air extractor 53 is fixedly installed on the exhaust chamber 50 through an installation support 54. A plurality of cloth bag brackets are fixedly mounted on both sides of the top surface of the exhaust chamber 50, and a dust removal cloth bag 51 is fixedly mounted between the two cloth bag brackets on the opposite sides.
The waste heat recovery mechanism comprises a waste heat recovery chamber 30, a transverse clapboard 34 and a vertical clapboard 36 are welded in the waste heat recovery chamber 30, the vertical clapboard 36 divides the waste heat recovery chamber 30 into a heat exchange cavity 33 and a water cavity, the transverse clapboard 34 is welded in the water cavity, and the transverse clapboard 34 divides the water cavity into a water inlet cavity 31 and a water outlet cavity 32. The waste heat recovery chamber 30 is provided with a water inlet communicated with the water inlet cavity 31 and a water outlet communicated with the water outlet cavity 32, the water inlet is connected with a water inlet pipe 37, and the water outlet is connected with a water outlet pipe 38. A plurality of heat transfer pipes 35 for water to flow are arranged in the heat exchange cavity 33, the heat transfer pipes 35 are U-shaped, one end of each heat transfer pipe 35 is communicated with the water inlet cavity 31, and the other end of each heat transfer pipe 35 is communicated with the water outlet cavity 32. An air outlet communicated with the heat exchange cavity 33 is formed in the waste heat recovery chamber 30, a main pipe 80 is connected between the heat exchange cavity 33 of the waste heat recovery chamber 30 and the combustion chamber 40, a branch pipe 81 is connected to the side wall of the main pipe 80, and an adjusting portion used for adjusting the size of a through opening of the branch pipe 81 is arranged on the branch pipe 81. One end of the first preheating pipe 61 is communicated with the air outlet, and the other end of the first preheating pipe 61 is communicated with the exhaust chamber 50; one end of the second preheating pipe 62 communicates with the branch pipe 81, and the other end of the second preheating pipe 62 communicates with the exhaust chamber 50.
Referring to fig. 3, the adjusting portion includes a baffle 84, a bracket 83 and a screw 82 rotatably connected to the bracket 83, the bracket 83 is welded to the side wall of the branch pipe 81, a groove having a T-shaped cross section is formed in the bracket 83, and one side of the screw 82 is engaged with and rotatably connected to the groove. The baffle 84 is slidably and hermetically connected to a side wall of one side of the branch pipe 81, one side of the baffle 84 extends into the branch pipe 81, and the other side of the baffle 84 extends out of the branch pipe 81. One end of the screw 82 extends into the baffle 84 and is in threaded connection with the baffle 84, and the baffle 84 can be moved by screwing the screw 82.
The gas suction filtering mechanism comprises a filtering chamber 10, an activated carbon chamber 20, an air suction pipe 70 and a negative pressure air suction pump 71, wherein one end of the air suction pipe 70 is communicated with the activated carbon chamber 20, the other end of the air suction pipe 70 is communicated with the preheating chamber 60, and the negative pressure air suction pump 71 is arranged on the air suction pipe 70. As shown in fig. 4, a plurality of through holes 11 are formed on a side wall of one side of the filtering chamber 10, a plurality of filtering mesh plates 12 opposite to the through holes 11 are installed in the filtering chamber 10, a connecting pipe 15 is connected between the filtering chamber 10 and the activated carbon chamber 20, and gas filtered by the filtering chamber 10 can enter the activated carbon chamber 20 through the connecting pipe 15. A brush handle 13 for brushing the filter screen plate 12 is slidably connected in the filter chamber 10, specifically, two opposite inner walls of the filter chamber 10 are provided with oppositely arranged sliding grooves, and the brush handle 13 is welded with a sliding block slidably connected in the sliding grooves. An iron block 14 is fixed on the brush handle 13, and an electromagnet opposite to the iron block 14 is fixedly arranged in the upper part of the filter chamber 10.
When the VOC-containing waste gas needs to be cleaned, the negative pressure air pump 71 is started, under the action of the negative pressure air pump 71, the external waste gas enters the filter chamber 10 from the through hole 11, the waste gas is filtered by the filter screen plate 12 and then enters the activated carbon chamber 20 through the connecting pipe 15, and the activated carbon adsorbs impurities in the waste gas again. The filtered exhaust gas enters the preheating chamber 60 to be preheated and then enters the combustion chamber 40 to be combusted, most of the combusted gas enters the waste heat recovery chamber 30 through the main pipe 80, and most of the heat of the part of the gas is recovered and utilized. The gas primarily recovered by the waste heat recovery chamber 30 enters the preheating chamber 60 through the first preheating pipe 61, preheats the exhaust gas in the preheating chamber 60, and finally enters the exhaust mechanism. A small portion of the combusted gas entering the main duct 80 enters the second preheating duct 62 through the branch duct 81 and enters the preheating chamber 60 through the second preheating duct 62 to preheat the exhaust gas in the preheating chamber 60.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.
Claims (7)
1. Waste heat recovery utilizes device, its characterized in that: comprises a gas suction filtering mechanism, a gas combustion mechanism, a waste heat recovery mechanism and an exhaust mechanism which are communicated in sequence; the gas combustion mechanism comprises a preheating chamber and a combustion chamber positioned above the preheating chamber, the lower part of the combustion chamber is communicated with the upper part of the preheating chamber, and a first preheating pipe and a second preheating pipe are arranged in the preheating chamber; the waste heat recovery mechanism comprises a waste heat recovery chamber, a heat transfer pipe for supplying water to flow is arranged in the waste heat recovery chamber, and an air outlet is arranged on the waste heat recovery chamber; a main pipe is connected between the waste heat recovery chamber and the combustion chamber, a branch pipe is connected to the side wall of the main pipe, and an adjusting part for adjusting the size of a branch pipe opening is arranged on the branch pipe; one end of the first preheating pipe is communicated with the air outlet, and the other end of the first preheating pipe is communicated with the exhaust mechanism; one end of the second preheating pipe is communicated with the branch pipe, and the other end of the second preheating pipe is communicated with the exhaust mechanism.
2. The waste heat recovery device according to claim 1, characterized in that: the adjusting part comprises a baffle, a bracket arranged on the outer wall of the branch pipe and a screw rod rotatably connected to the bracket, the baffle is connected to the side wall of one side of the branch pipe in a sliding and sealing manner, one side of the baffle extends into the branch pipe, and the other side of the baffle extends out of the branch pipe; one end of the screw rod extends into the baffle and is in threaded connection with the baffle.
3. The waste heat recovery device according to claim 2, characterized in that: the gas suction filtering mechanism comprises a filtering chamber, an activated carbon chamber, an air suction pipe and a negative pressure air suction pump arranged on the air suction pipe, wherein a plurality of through holes are formed in one side of the filtering chamber, and a filtering screen plate opposite to the through holes is arranged in the filtering chamber; the filter chamber is connected with the active carbon chamber through a connecting pipe; one end of the air suction pipe is communicated with the activated carbon chamber, and the other end of the air suction pipe is communicated with the preheating chamber.
4. The waste heat recovery device according to claim 3, characterized in that: the second preheating pipe is arranged above the first preheating pipe, and one end of the air suction pipe is opposite to the first preheating pipe.
5. The waste heat recovery device according to claim 4, wherein: a brush handle used for cleaning the filter screen plate is connected in the filter chamber in a sliding mode, an iron block is arranged on the brush handle, and an electromagnet opposite to the iron block is arranged in the upper portion of the filter chamber.
6. The waste heat recovery device according to any one of claims 1 to 5, wherein: a transverse clapboard and a vertical clapboard are arranged in the waste heat recovery chamber, the vertical clapboard divides the waste heat recovery chamber into a heat exchange cavity and a water cavity, the transverse clapboard is fixed in the water cavity, and the transverse clapboard divides the water cavity into a water inlet cavity and a water outlet cavity; the waste heat recovery chamber is provided with a water inlet communicated with the water inlet cavity and a water outlet communicated with the water outlet cavity; the air outlet and the main pipe are both communicated with the heat exchange cavity; the heat-transfer pipe is the U-shaped, and the heat-transfer pipe is equipped with many, and many heat-transfer pipes all are located the heat transfer intracavity, the one end and the intake antrum intercommunication of heat-transfer pipe, the other end and the play water cavity intercommunication of heat-transfer pipe.
7. The waste heat recovery device according to claim 6, wherein: the exhaust mechanism comprises an exhaust chamber, the side wall of the exhaust chamber is provided with a gas outlet, and the exhaust chamber is provided with an air exhaust fan opposite to the gas outlet; a plurality of dust removing cloth bags are arranged in the exhaust chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120573747.1U CN215175121U (en) | 2021-03-19 | 2021-03-19 | Waste heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120573747.1U CN215175121U (en) | 2021-03-19 | 2021-03-19 | Waste heat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215175121U true CN215175121U (en) | 2021-12-14 |
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ID=79351673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120573747.1U Expired - Fee Related CN215175121U (en) | 2021-03-19 | 2021-03-19 | Waste heat recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215175121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823598A (en) * | 2023-02-24 | 2023-03-21 | 北京势蓝科技有限公司 | Flow dividing device, combustion device and VOCs gas treatment method |
-
2021
- 2021-03-19 CN CN202120573747.1U patent/CN215175121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823598A (en) * | 2023-02-24 | 2023-03-21 | 北京势蓝科技有限公司 | Flow dividing device, combustion device and VOCs gas treatment method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |