CN110608623B - Waste heat recoverer of oil-free screw air compressor - Google Patents
Waste heat recoverer of oil-free screw air compressor Download PDFInfo
- Publication number
- CN110608623B CN110608623B CN201910617106.9A CN201910617106A CN110608623B CN 110608623 B CN110608623 B CN 110608623B CN 201910617106 A CN201910617106 A CN 201910617106A CN 110608623 B CN110608623 B CN 110608623B
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- China
- Prior art keywords
- shell
- buffer cavity
- air outlet
- heat exchange
- water
- Prior art date
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- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 89
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 238000011084 recovery Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
- F28D7/1692—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
Abstract
The invention discloses an oil-free screw air compressor waste heat recoverer, which comprises an integrally formed shell, an air inlet buffer cavity, an air outlet buffer cavity, a heat exchange device, a compressed air inlet and a compressed air outlet, wherein the air inlet buffer cavity and the air outlet buffer cavity are respectively arranged at two ends of the inside of the shell, the heat exchange device is arranged between the air inlet buffer cavity and the air outlet buffer cavity, and the compressed air inlet and the compressed air outlet are arranged on the top of the shell. The compressed air inlet is arranged on the shell close to one side of the air inlet buffer cavity. The compressed air outlet is arranged on the shell close to one side of the air outlet buffer cavity. A baffle plate for separating air at two sides is arranged on one side surface of the shell, which is close to the compressed air outlet. The shells at the bottoms of the air inlet buffer cavity and the air outlet buffer cavity are respectively provided with a drain hole communicated with the outside. The invention has the advantages of countercurrent heat exchange, capability of improving the outlet water temperature to more than 90 degrees, waste heat utilization value, heat exchange efficiency improvement, simple and durable structure, small pressure loss, small volume, capability of being installed in the air compressor and convenience for maintenance.
Description
Technical Field
The invention relates to the field of waste heat recovery equipment, in particular to a waste heat recoverer of an oil-free screw air compressor.
Background
At present, the oil-free screw type air compressor cooler (shown in fig. 1) on the market mainly comprises an intermediate cooling heat exchanger and a rear-end heat exchanger. For example, when the compressed air inlet reaches 200 degrees, the air at the outlet is 40 degrees, the temperature difference of the tail of the heat transfer tube head reaches 160 degrees, and the heat exchange tube is easily pulled apart due to the fact that the stress born by the heat exchange tube is large due to frequent air unloading and stopping. After the compressed air reaches 200 ℃, the compressed air is cooled to 40 ℃, a large amount of condensate water is generated in the process and flows into the secondary compressor head, so that the secondary compression is used for less than two years, most of the secondary compression rusts, and the head is damaged. The traditional heat exchanger adopts a tube type structure, the temperature difference of water is generally controlled to be 10 ℃, the temperature difference belongs to large flow and small temperature difference, the temperature of a water outlet is controlled to be within 40 ℃, and the water temperature is low and has no utilization value. The traditional heat exchanger consists of a tube plate, a tube barrel, a flange and the like, is troublesome to install, complex in processing technology and high in cost. During the machining process, more welding seams exist for various parts of the tube barrel and the tube plate, and a great deal of leakage risks exist. The tube plate and the tube have large internal resistance, more dead corners and poor heat exchange. The heat exchange tube is longer, is easy to form scale and is inconvenient to clean.
Disclosure of Invention
In view of the above problems, the invention aims to provide an oil-free screw air compressor waste heat recoverer which has the advantages of countercurrent heat exchange, capability of improving the outlet water temperature to more than 90 degrees, waste heat utilization value, heat exchange efficiency improvement, simple and durable structure, small pressure loss, small volume, capability of being installed in an air compressor and convenience in maintenance.
In order to achieve the above purpose, the invention provides an oil-free screw air compressor waste heat recoverer, which comprises an integrally formed shell, an air inlet buffer cavity, an air outlet buffer cavity, a heat exchange device, a compressed air inlet and a compressed air outlet, wherein the air inlet buffer cavity and the air outlet buffer cavity are respectively arranged at two ends of the inside of the shell; the compressed air inlet is arranged on the shell close to one side of the air inlet buffer cavity. The compressed air outlet is arranged on the shell close to one side of the air outlet buffer cavity. A baffle plate for separating air at two sides is arranged on one side surface of the shell, which is close to the compressed air outlet. The shells at the bottoms of the air inlet buffer cavity and the air outlet buffer cavity are respectively provided with drain holes communicated with the outside. The heat exchange device comprises a horizontal airflow guide plate respectively arranged on the upper side and the lower side of the top and the bottom in the shell, a plurality of regularly arranged hole sites arranged on the side surfaces of the shell opposite to the two sides of the airflow guide plate, a water inlet cover and a water outlet cover which wrap the hole sites and a water return cover arranged on the side surfaces of the shell on the two sides, and heat exchange tubes respectively arranged on the corresponding hole sites on the two side surfaces of the shell; the opposite angles of the water inlet and outlet cover are respectively provided with a water inlet and a water outlet. The water inlet and outlet cover and the water return cover are provided with convex shells which protrude outwards and form a cavity with the shell. The heat exchange tube body is transversely fixed on the hole sites opposite to the two sides of the shell. The air flow guide plate at the top of the shell is separated from the inner wall of the shell by a certain long space, and the baffle is connected with the air flow guide plate to divide the long space into two spaces.
In some embodiments, the heat exchange tube body comprises a flat tube, and a plurality of bulges are respectively arranged on two sides of the flat tube from inside to outside.
In some embodiments, a plurality of the bulges are distributed on two sides of the flat tube one by one, and the bulges are grouped into a group with a triangle shape.
In some embodiments, the housing on one side of the air-out buffer chamber is provided with a service port on which a sealing plate is provided. The maintenance port is provided with a water-gas separator extending towards the inside of the air outlet buffer cavity. The handle is arranged on the water-gas separator, and the water-gas separator is directly taken out and replaced, so that the purpose of removing condensed water and prolonging the service life of the host machine is achieved.
In some embodiments, the housing is a water-swellable integral housing.
In some embodiments, a mounting bracket is provided on the bottom of the housing.
The invention has the beneficial effects that: the countercurrent heat exchange can improve the outlet water temperature to more than 90 degrees, has waste heat utilization value, improves the heat exchange efficiency, has simple and durable structure and small pressure loss, and has the effects of being internally installed in the air compressor and being convenient to maintain.
The method comprises the following steps:
(1) The countercurrent heat exchange mode is that high-temperature flue gas enters from a compressed air inlet and then reaches an air inlet buffer cavity to exchange heat with heat exchange pipes transversely arranged each time, and the flue gas subjected to heat exchange is discharged from a compressed air outlet. However, the medium water requiring heat exchange enters from the water inlet arranged on the water inlet and outlet cover at one side of the compressed air outlet, and the water detours to fully exchange heat with the high-temperature flue gas outside the pipe through each heat exchange pipe body by the characteristics that the water inlet and outlet cover and the water return cover are provided with outwards protrusions and the cavity formed between the water inlet and outlet cover and the shell is communicated with each heat exchange pipe body, and finally the high-temperature water is discharged from the water outlet arranged on the water inlet and outlet cover. So that the temperature of the discharged water can be higher than 90 degrees, and the waste heat recovery value is realized.
(2) The flat tube is adopted as the heat exchange tube body, and the bulges are arranged on the heat exchange tube body, so that air turbulence is increased, and the heat exchange efficiency is improved.
(3) The shell adopts water expansion integrated into one piece, and compressive strength is high, compact structure simple and durable.
(4) The water expansion integrated forming device comprises a shell water cover and other parts, wherein the water expansion integrated forming device is used for forming the shell water cover and other parts, so that the welding of the parts is reduced, and the manufacturing cost of the die after one-time investment is greatly reduced.
(5) The heat exchange tube is in uniform contact with the gas, no dead angle exists, the heat exchange channel is enough, the resistance is small, and the heat exchange efficiency is high.
(6) The heat exchange tube is in transverse contact with air, the temperature difference between the head and the tail of the heat exchange tube is consistent, the stress is reduced, and the service life of the heat exchange tube is long.
(7) The heat exchange tubes are transversely arranged, the length is short, and the maintenance is convenient.
(8) The water inlet and outlet cover and the recovery cover are formed by water expansion, and a sufficient back and forth channel is formed, so that the water flow rate can be ensured when the water temperature is required to be higher.
(9) The water-gas separator is arranged at the air outlet, so that the water mist removal rate of more than 10 microns can be more than 98%.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of another view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic perspective view of FIG. 4;
FIG. 6 is a schematic view of the structure of the water inlet and outlet cover, the water return cover, and the flat tube in the invention;
fig. 7 is a schematic view of another view of fig. 6.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-7, an oil-free screw air compressor waste heat recoverer comprises an integrally formed shell 01, an air inlet buffer cavity 02, an air outlet buffer cavity 03, a heat exchange device 04 arranged between the air inlet buffer cavity 02 and the air outlet buffer cavity 03, a compressed air inlet 05 and a compressed air outlet 06 arranged on the top of the shell 01, wherein the air inlet buffer cavity 02 and the air outlet buffer cavity 03 are respectively arranged at two ends of the inside of the shell 01. The compressed air inlet 05 is provided in the housing 01 on the side close to the intake damper chamber 02. The compressed air outlet 06 is arranged on the shell 01 at one side close to the air outlet buffer cavity 03. A baffle 07 for blocking air at two sides is arranged at one side surface of the shell 01 near the compressed air outlet 06. The shell 01 at the bottom of the air inlet buffer cavity 02 and the air outlet buffer cavity 03 is respectively provided with a drain hole 08 communicated with the outside. The heat exchange device 04 comprises a horizontal airflow guide plate 41 respectively arranged on the upper side and the lower side of the top and the bottom in the shell 01, a plurality of regularly arranged hole sites 42 arranged on the side surface of the shell 01 opposite to the two sides of the airflow guide plate 41, a water inlet and outlet cover 43 and a water return cover 44 which cover the hole sites 42 arranged on the side surface of the shell 01 on the two sides, and heat exchange tubes 45 respectively arranged on the corresponding hole sites 42 on the two side surfaces of the shell 01. The water inlet and outlet cover 43 is provided with a water inlet 46 and a water outlet 47 on opposite angles, respectively. The water inlet and outlet cover 43 and the water return cover 44 are provided with convex shells 48 protruding outwards and forming cavities with the shell 01. The heat exchange tube 45 is transversely fixed on the opposite hole sites 42 on the two sides of the shell 01. The air flow guide plate 41 at the top of the shell 01 is separated from the inner wall of the shell 01 by a certain long space, and the baffle 07 is connected with the air flow guide plate 41 to divide the long space into two spaces. The heat exchange tube 45 includes a flat tube 451, and a plurality of bulges 452 are respectively provided on both sides of the flat tube 451. The bulges 452 are distributed on two sides of the flat tube 451 one by one, and the bulges are grouped into a group and distributed in a triangle shape. The housing 01 at one side of the air outlet buffer cavity 03 is provided with a maintenance port 09, and a sealing plate 10 is arranged on the maintenance port 09. The maintenance port 09 is provided with a gas-water separator 11 extending into the gas outlet buffer chamber 03. The handle 12 is arranged on the water-gas separator 11, and the water-gas separator 11 can be directly taken out and replaced, so that the purposes of removing condensed water and prolonging the service life of the host machine are achieved. The shell 01 is a water expansion integrated shell 01. A mounting bracket 13 is provided on the bottom of the housing 01.
Principle of operation
After entering from the compressed air inlet 05, the high-temperature flue gas passes through an interlayer formed by the airflow guide plate 41, the shell 01 and the baffle 07 and is collected into the air inlet buffer cavity 02. After that, the air flows through the gaps between the upper and lower air flow guide plates 41 and between the heat exchange tube bodies 45. Because the heat exchange tube 45 is composed of a plurality of flat tubes 451 arranged side by side, and the two sides of each flat tube 451 are respectively provided with three bulges 452 protruding towards the front and the rear, when each flat tube 451 is arranged side by side, the two flat tubes 451 with the same structure are overlapped and arranged by taking the bulges 452 as supporting points, so that a gap is formed in the middle. The joint air is collected into the air outlet buffer cavity 03, passes through the interlayer between the air flow guide plate 41 on one side of the baffle 07 and the shell 01, and finally discharges the low-temperature flue gas after heat exchange from the compressed air outlet 06. After entering from the water inlet 46, the water is collected in the water inlet and outlet cover 43, and is split into the flat pipe 451 and flows out from the other end into the water return cover 44. Because the convex shells 48 on the water inlet and outlet cover 43 and the water return cover 44 are staggered respectively, the purpose is to ensure that all the flat pipes 451 on the heat exchange device 04 are in circuitous communication. Therefore, the water is detoured to the water inlet/outlet cover 43, and after repeated detours, the water is finally discharged from the water outlet 47 on the diagonal of the water inlet/outlet cover 43, thereby obtaining high-temperature water.
During application, the countercurrent heat exchange mode, namely the so-called countercurrent heat exchange mode, is that high-temperature flue gas enters from the compressed air inlet 05, then reaches the air inlet buffer cavity 02, exchanges heat with each heat exchange tube transversely arranged, and the flue gas subjected to heat exchange is discharged from the compressed air outlet 06. However, the medium water requiring heat exchange enters from the water inlet 46 arranged on the water inlet and outlet cover 43 at one side of the compressed air outlet 06, and through the characteristics that the water inlet and outlet cover 43 and the water return cover 44 are provided with outwards protrusions and the cavity formed between the water inlet and outlet cover 43 and the water return cover 44 is communicated with each heat exchange tube 45, the water bypasses to fully exchange heat with the high-temperature flue gas outside the tube through each heat exchange tube 45, and finally the high-temperature water is discharged from the water outlet 47 arranged on the water inlet and outlet cover 43. So that the temperature of the discharged water can be higher than 90 degrees, and the waste heat recovery value is realized. The heat exchange tube 45 with the flat tube 451 is provided with the bulge 452 on the heat exchange tube 45, thereby increasing air turbulence and improving heat exchange efficiency. The shell 01 is integrally formed by water expansion, has high compressive strength and compact structure, and is simple and durable. Comprises a shell 01, a water cover and other parts which are integrally formed by water expansion, the welding of parts is reduced, and the manufacturing cost of the die after one-time investment is greatly reduced. The heat exchange tube is in uniform contact with the gas, no dead angle exists, the heat exchange channel is enough, the resistance is small, and the heat exchange efficiency is high. The heat exchange tube is in transverse contact with air, the temperature difference between the head and the tail of the heat exchange tube is consistent, the stress is reduced, and the service life of the heat exchange tube is long. The heat exchange tubes are transversely arranged, the length is short, and the maintenance is convenient. The water inlet and outlet cover 43 and the recovery cover are formed by water expansion, and form enough back and forth channels, so that the water flow rate can be ensured when the water temperature is required to be higher. The water-gas separator 11 is arranged at the air outlet, so that the water mist removal rate of more than 10 microns can be more than 98%.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (4)
1. The waste heat recoverer of the oil-free screw air compressor is characterized by comprising a shell, an air inlet buffer cavity, an air outlet buffer cavity, a heat exchange device, a compressed air inlet and a compressed air outlet, wherein the air inlet buffer cavity and the air outlet buffer cavity are respectively arranged at two ends of the inside of the shell, the heat exchange device is arranged between the air inlet buffer cavity and the air outlet buffer cavity, and the compressed air inlet and the compressed air outlet are arranged on the top of the shell; the compressed air inlet is arranged on the shell close to one side of the air inlet buffer cavity;
the compressed air outlet is arranged on the shell close to one side of the air outlet buffer cavity;
a baffle plate for separating air at two sides is arranged on one side surface of the shell, which is close to the compressed air outlet;
the shell at the bottom of the air inlet buffer cavity and the air outlet buffer cavity are respectively provided with drain holes communicated with the outside;
the heat exchange device comprises a horizontal airflow guide plate respectively arranged on the upper side and the lower side of the top and the bottom in the shell, a plurality of regularly arranged hole sites arranged on the side surfaces of the shell opposite to the airflow guide plate, a water inlet cover and a water outlet cover which wrap the hole sites arranged on the side surfaces of the shell on the two sides, and heat exchange tubes respectively arranged on the corresponding hole sites on the two side surfaces of the shell; the opposite angles of the water inlet and outlet cover are respectively provided with a water inlet and a water outlet;
convex shells which protrude outwards and form a cavity with the shell are arranged on the water inlet cover and the water outlet cover;
the heat exchange tube body is transversely fixed on the opposite hole sites on the two sides of the shell;
the air flow guide plate at the top of the shell is separated from the inner wall of the shell by a certain long space, and the baffle is connected with the air flow guide plate to divide the long space into two spaces;
the heat exchange tube body comprises a flat tube, and a plurality of bulges which bulge from inside to outside are respectively arranged on two sides of the flat tube;
the shell at one side of the air outlet buffer cavity is provided with a maintenance port, and a sealing plate is arranged on the maintenance port;
the maintenance port is provided with a water-gas separator extending towards the inside of the air outlet buffer cavity.
2. The oil-free screw air compressor waste heat recoverer as claimed in claim 1, wherein a plurality of bulges are distributed on two sides of the flat pipe one by one, and the bulges are arranged in a group of three and are distributed in a triangle shape.
3. The oil-free screw air compressor waste heat recoverer as claimed in any one of claims 1-2, wherein the housing is a water expansion integrated housing.
4. An oil-free screw air compressor waste heat recoverer as claimed in claim 3, wherein the housing bottom is provided with a mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910617106.9A CN110608623B (en) | 2019-07-09 | 2019-07-09 | Waste heat recoverer of oil-free screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910617106.9A CN110608623B (en) | 2019-07-09 | 2019-07-09 | Waste heat recoverer of oil-free screw air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110608623A CN110608623A (en) | 2019-12-24 |
| CN110608623B true CN110608623B (en) | 2024-04-09 |
Family
ID=68889779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910617106.9A Active CN110608623B (en) | 2019-07-09 | 2019-07-09 | Waste heat recoverer of oil-free screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110608623B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048873A2 (en) * | 1980-09-26 | 1982-04-07 | LOROWERK K.H. Vahlbrauk GmbH | Heat transfer device |
| CN1788835A (en) * | 2004-12-14 | 2006-06-21 | 杭州林达化工技术工程有限公司 | Transverse pipe type heat transfer reaction unit |
| CN201876164U (en) * | 2010-10-27 | 2011-06-22 | 启东天润环境工程有限公司 | Novel high-efficiency heat exchanger |
| CN202532939U (en) * | 2012-05-04 | 2012-11-14 | 常州市新浩印染有限公司 | Flue heat energy recovery device |
| CN106370037A (en) * | 2016-09-26 | 2017-02-01 | 绍兴文理学院 | Exhaust gas waste heat recycling system |
| CN206073769U (en) * | 2016-08-25 | 2017-04-05 | 苏州天成涂装系统股份有限公司 | A kind of waste heat recovery device |
| CN107202505A (en) * | 2017-05-11 | 2017-09-26 | 中国北方车辆研究所 | A kind of Double-casing compound combustion UTILIZATION OF VESIDUAL HEAT IN heat-exchanger rig |
| CN210512765U (en) * | 2019-07-09 | 2020-05-12 | 广东焕能科技有限公司 | Waste heat recoverer of oil-free screw air compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204665982U (en) * | 2015-05-18 | 2015-09-23 | 无锡市林源热交换器有限公司 | A kind of water-cooled shell oil cooler |
-
2019
- 2019-07-09 CN CN201910617106.9A patent/CN110608623B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048873A2 (en) * | 1980-09-26 | 1982-04-07 | LOROWERK K.H. Vahlbrauk GmbH | Heat transfer device |
| CN1788835A (en) * | 2004-12-14 | 2006-06-21 | 杭州林达化工技术工程有限公司 | Transverse pipe type heat transfer reaction unit |
| CN201876164U (en) * | 2010-10-27 | 2011-06-22 | 启东天润环境工程有限公司 | Novel high-efficiency heat exchanger |
| CN202532939U (en) * | 2012-05-04 | 2012-11-14 | 常州市新浩印染有限公司 | Flue heat energy recovery device |
| CN206073769U (en) * | 2016-08-25 | 2017-04-05 | 苏州天成涂装系统股份有限公司 | A kind of waste heat recovery device |
| CN106370037A (en) * | 2016-09-26 | 2017-02-01 | 绍兴文理学院 | Exhaust gas waste heat recycling system |
| CN107202505A (en) * | 2017-05-11 | 2017-09-26 | 中国北方车辆研究所 | A kind of Double-casing compound combustion UTILIZATION OF VESIDUAL HEAT IN heat-exchanger rig |
| CN210512765U (en) * | 2019-07-09 | 2020-05-12 | 广东焕能科技有限公司 | Waste heat recoverer of oil-free screw air compressor |
Also Published As
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|---|---|
| CN110608623A (en) | 2019-12-24 |
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