CN110608623A - Waste heat recoverer of oil-free screw air compressor - Google Patents
Waste heat recoverer of oil-free screw air compressor Download PDFInfo
- Publication number
- CN110608623A CN110608623A CN201910617106.9A CN201910617106A CN110608623A CN 110608623 A CN110608623 A CN 110608623A CN 201910617106 A CN201910617106 A CN 201910617106A CN 110608623 A CN110608623 A CN 110608623A
- Authority
- CN
- China
- Prior art keywords
- shell
- buffer cavity
- water
- air outlet
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 7
- 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
- 238000003466 welding Methods 0.000 description 3
- 238000001816 cooling 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
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012545 processing 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses an oil-free screw air compressor waste heat recoverer which comprises an integrally formed shell, an air inlet buffer cavity and an air outlet buffer cavity which are respectively arranged at two ends in the shell, a heat exchange device arranged between the air inlet buffer cavity and the air outlet buffer cavity, and a compressed air inlet and a compressed air outlet which 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 for isolating air at two sides is arranged on one side surface of the shell body close to the compressed air outlet. The shells at the bottoms of the air inlet buffer cavity and the air outlet buffer cavity are provided with drain holes communicated with the outside. The invention has the effects of countercurrent heat exchange, capability of improving the temperature of outlet water to more than 90 ℃, 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 in 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
Currently, the oil-free screw air compressor cooler (as shown in fig. 1) on the market mainly consists of an intermediate cooling and a back-end heat exchanger. For example, when the inlet of the compressed air reaches 200 degrees, the air at the outlet is 40 degrees, the temperature difference between the head and the tail of the heat transfer pipe in the compressed air inlet reaches 160 degrees, and the heat transfer pipe is subjected to large stress due to frequent air unloading and shutdown and is easy to crack. After the compressed air reaches 200 ℃, the compressed air is cooled to 40 ℃, a large amount of condensed water is produced in the process of cooling and is brought into the head of the secondary compressor, and most of the condensed water is rusted in the two-stage compressor in less than two years of use, so that the head is damaged. The traditional heat exchanger adopts a tube type structure, the temperature difference of water is generally controlled at 10 ℃, the traditional heat exchanger belongs to large flow and small temperature difference, the temperature of a water outlet is controlled within 40 ℃, and the water temperature is low and has no utilization value. The traditional heat exchanger is composed of a tube plate, a tube barrel, a flange and the like, and is troublesome to install, complex in machining process and high in cost. During the processing, various parts of the pipe barrel and the pipe plate have more welding seams and have more leakage risks. The tube plate and the tube barrel have large internal resistance, more dead corners and poor heat exchange. The heat exchange tube is long, easy to form scale and inconvenient to clean.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an oil-free screw air compressor waste heat recoverer which can perform countercurrent heat exchange, increase the temperature of the outlet water to more than 90 degrees, has a waste heat utilization value, improves the heat exchange efficiency, has a simple and durable structure, a small pressure loss, a small volume, can be installed inside an air compressor, and is convenient to maintain.
In order to achieve the purpose, the waste heat recoverer of the oil-free screw air compressor comprises an integrally formed shell, an air inlet buffer cavity and an air outlet buffer cavity which are respectively arranged at two ends in the shell, a heat exchange device arranged between the air inlet buffer cavity and the air outlet buffer cavity, and a compressed air inlet and a compressed air outlet which 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 for isolating air at two sides is arranged on one side surface of the shell body 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 heat exchange device comprises a horizontal airflow guide plate respectively arranged at the top and the upper and lower sides of the bottom in the shell, a plurality of regularly arranged hole sites arranged on the side surface of the shell opposite to the two sides of the airflow guide plate, a water inlet and outlet cover and a water return cover which are arranged on the side surface of the shell at the two sides and wrap the hole sites, and heat exchange pipe bodies respectively arranged on the corresponding hole sites on the two sides of the shell; the water inlet and outlet cover is provided with a water inlet and a water outlet on opposite angles. Convex shells which are outwards protruded and form a cavity with the shell are arranged on the water inlet and outlet cover and the water return cover. The heat exchange tube body is transversely fixed on the opposite hole sites at the two sides of the shell. The air flow guide plate on the top of the shell and the dividing wall on the inner wall of the shell are separated into a certain long space, and the baffle plate is connected with the air flow guide plate to divide the long space into two spaces.
In some embodiments, the heat exchange tube body includes a flat tube, and a plurality of bulges are respectively arranged on two sides of the flat tube and bulge from inside to outside.
In some embodiments, the bulges are distributed on two sides of the flat tube one by one. Each group of bulges are distributed in a triangular shape.
In some embodiments, the shell on one side of the air outlet buffer cavity is provided with a maintenance opening, and a sealing plate is arranged on the maintenance opening. And a water-gas separator extending towards the inside of the air outlet buffer cavity is arranged on the maintenance opening. The handle is arranged on the water-gas separator, and the water-gas separator can be directly taken out and replaced, so that the purposes of removing condensed water and prolonging the service life of the main machine are achieved.
In some embodiments, the housing is a water-swellable integrally formed housing.
In some embodiments, a mounting bracket is provided on the bottom of the housing.
The invention has the advantages that: the countercurrent heat exchange device has the advantages of waste heat utilization value, improvement of heat exchange efficiency, simple and durable structure, small pressure loss, small size, capability of being installed inside the air compressor and convenience in maintenance, and the temperature of the outlet water can be increased to more than 90 ℃.
The method comprises the following specific steps:
(1) the heat exchange mode of the countercurrent 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 tubes transversely arranged each time, and the flue gas after heat exchange is discharged from a compressed air outlet. However, the medium water to be heat exchanged enters from the water inlet arranged on the water inlet and outlet cover on one side of the compressed air outlet, and the water bypasses to fully exchange heat with the high-temperature flue gas outside the pipe through each heat exchange pipe body by the characteristic that the water inlet and outlet cover and the water return cover are provided with outward bulges and communicated with the cavity formed between the water inlet and outlet cover and the shell, and finally the high-temperature water is discharged from the water outlet arranged on the water inlet and outlet cover. Therefore, the temperature of the outlet water can reach more than 90 ℃, and the waste heat recovery value is achieved.
(2) The heat exchange tube body adopting the flat tube is provided with the bulge, so that air turbulence is increased, and the heat exchange efficiency is improved.
(3) The shell is integrally formed by water expansion, and has high compressive strength, compact structure, simplicity and durability.
(4) Most parts including a shell water cover and the like 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.
(5) The heat exchange tubes are uniformly contacted with the gas without dead angles, the heat exchange channels are enough, the resistance is small, and the heat exchange efficiency is high.
(6) The heat exchange tube is transversely contacted with air, the head-tail temperature difference 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 tube is transversely arranged, has shorter length and is convenient to maintain.
(8) The water inlet and outlet cover and the recovery cover are formed by water expansion, and an enough back-and-forth channel is formed, so that the water flow rate can be ensured when higher water temperature is obtained.
(9) The water-gas separator is arranged at the air outlet, so that the water mist removal rate of more than 10 microns can reach more than 98%.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of another embodiment 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 structural view of the water inlet and outlet cover, the water return cover and the flat pipe in the present invention;
fig. 7 is a schematic structural diagram of another view angle shown in fig. 5.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 7, the waste heat recovery device for the oil-free screw air compressor comprises an integrally formed shell 01, an air inlet buffer cavity 02 and an air outlet buffer cavity 03 respectively arranged at two ends inside the shell 01, a heat exchange device 04 arranged between the air inlet buffer cavity 02 and the air outlet buffer cavity 03, and a compressed air inlet 05 and a compressed air outlet 06 arranged on the top of the shell 01. The compressed air inlet 05 is provided in the housing 01 on the side close to the intake buffer chamber 02. The compressed air outlet 06 is arranged on the shell 01 close to one side of the air outlet buffer cavity 03. A baffle 07 for isolating air at two sides is arranged on one side surface of the shell 01 close to 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 exchanger 04 comprises a horizontal airflow guide plate 41 respectively arranged at the top and the bottom of 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 arranged on the side surface of the shell 01 at the two sides and covering the hole sites 42, and heat exchange tube bodies 45 respectively arranged on the corresponding hole sites 42 at the two sides of the shell 01. The water inlet and outlet cover 43 is provided with a water inlet 46 and a water outlet 47 at opposite corners. Convex shells 48 which protrude outwards and form a cavity with the shell 01 are arranged on the water inlet and outlet cover 43 and the water return cover 44. The heat exchange tube 45 is transversely fixed on the opposite holes 42 at the two sides of the shell 01. The airflow guide plate 41 on the top of the shell 01 and the dividing wall on the inner wall of the shell 01 are separated into a certain long space, and the baffle plate 07 is connected with the airflow guide plate 41 to divide the long space into two spaces. The heat exchange tube body 45 includes a flat tube 451, and a plurality of bulges 452 bulging from the inside to the outside are respectively provided on both surfaces of the flat tube 451. The plurality of bulges 452 are distributed on two sides of the flat pipe 451 one by one in three groups. Each set of bumps 452 is triangularly distributed. The shell 01 on one side of the air outlet buffer cavity 03 is provided with a maintenance opening 09, and a sealing plate 10 is arranged on the maintenance opening 09. And a water-gas separator 11 extending into the air outlet buffer cavity 03 is arranged on the maintenance opening 09. The handle 12 is arranged on the water-gas separator 11, and the water-gas separator 11 can be directly taken out for replacement, so that the purposes of removing condensed water and prolonging the service life of the main machine are achieved. The shell 01 is formed by integrally forming a water expansion 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 the interlayer formed by the airflow guide plate 41, the shell 01 and the baffle plate 07 and is collected in the air inlet buffer chamber 02. Then, the air flows through the gaps between the upper and lower air flow guide plates 41 and between the parallel heat exchange tube bodies 45. Because heat exchange tube body 45's structure comprises many flat pipes 451 side by side, the head and the tail two-sided of every flat pipe 451 is provided with three respectively to bellied swell 452, when every flat pipe 451 side by side, it uses two flat pipes 451 that the structure is the same to use swell 452 to carry out the stack arrangement as the strong point, consequently the middle for forming the clearance. The joint air is collected to the air outlet buffer cavity 03, passes through an interlayer between the airflow guide plate 41 on one side of the baffle plate 07 and the shell 01, and finally low-temperature flue gas after heat exchange is discharged from the compressed air outlet 06. After entering from the inlet 46, the water is collected in the inlet cover 43 and the outlet cover is divided into flat tubes 451, and flows out from the other end to the return cover 44. Because the convex shells 48 on the water inlet and outlet cover 43 and the water return cover 44 are respectively staggered, the aim is to ensure that all the flat tubes 451 on the heat exchange device 04 are in circuitous communication. Therefore, the water bypasses the inlet/outlet cover 43, and after repeated bypassing, the water is finally discharged from the outlet 47 on the opposite corners of the inlet/outlet cover 43, and the obtained water is high-temperature water.
When the heat exchange device is used, a countercurrent heat exchange mode is that high-temperature flue gas enters from the compressed air inlet 05 and then reaches the air inlet buffer cavity 02 to exchange heat with the heat exchange tubes transversely arranged each time, and the flue gas after heat exchange is discharged from the compressed air outlet 06. However, the medium water to be heat exchanged enters from the water inlet 46 formed on the water inlet and outlet cover 43 on the side of the compressed air outlet 06, and the water bypasses through each heat exchange tube 45 to perform sufficient heat exchange with the high temperature flue gas outside the tube by virtue of the characteristics that the water inlet and outlet cover 43 and the water return cover 44 are provided with outward protrusions and communicated with each heat exchange tube 45 through the cavity formed between the water inlet and outlet cover and the shell 01, and finally high temperature water is discharged from the water outlet 47 formed on the water inlet and outlet cover 43. Therefore, the temperature of the outlet water can reach more than 90 ℃, and the waste heat recovery value is achieved. The heat exchange tube body 45 adopting the flat tubes 451 is provided with the bulges 452 on the heat exchange tube body 45, so that air turbulence is increased, and the heat exchange efficiency is improved. The shell 01 is integrally formed by water expansion, and has high compressive strength, compact structure, simplicity and durability. Most parts including a shell 01 water cover and the like are integrally formed by water expansion, the welding of the parts is reduced, and the manufacturing cost of the die after one-time investment is greatly reduced. The heat exchange tubes are uniformly contacted with the gas without dead angles, the heat exchange channels are enough, the resistance is small, and the heat exchange efficiency is high. The heat exchange tube is transversely contacted with air, the head-tail temperature difference 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 tube is transversely arranged, has shorter length and is convenient to maintain. The water inlet and outlet covers 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 higher water temperature is obtained. The water-gas separator 11 is arranged at the air outlet, so that the water mist removal rate of more than 10 microns can reach more than 98%.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (6)
1. An oil-free screw air compressor waste heat recoverer is characterized by comprising an integrally formed shell, an air inlet buffer cavity and an air outlet buffer cavity which are respectively arranged at two ends in the shell, a heat exchange device arranged between the air inlet buffer cavity and the air outlet buffer cavity, and a compressed air inlet and a compressed air outlet which 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;
one side surface of the shell close to the compressed air outlet is provided with a baffle plate for isolating air at two sides;
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 heat exchange device comprises a horizontal airflow guide plate respectively arranged at the top and the upper and lower sides of the bottom in the shell, a plurality of regularly arranged hole sites arranged on the side surface of the shell opposite to the two sides of the airflow guide plate, a water inlet and outlet cover and a water return cover which are arranged on the side surface of the shell at the two sides and wrap the hole sites, and heat exchange pipe bodies respectively arranged on the corresponding hole sites on the two side surfaces of the shell; the water inlet and outlet cover is provided with a water inlet and a water outlet on opposite angles;
convex shells which protrude outwards and form a cavity with the shell are arranged on the water inlet and outlet cover and the water return cover;
the heat exchange tube body is transversely fixed on opposite hole sites on two sides of the shell;
the air flow guide plate on the top of the shell and the dividing wall on the inner wall of the shell are separated into a certain long space, and the baffle plate is connected with the air flow guide plate to divide the long space into two spaces.
2. An oilless screw air compressor waste heat recoverer as claimed in claim 1, wherein the heat exchange tube body comprises a flat tube, and a plurality of bulges bulging from inside to outside are respectively provided on both sides of the flat tube.
3. An oilless screw air compressor waste heat recoverer as claimed in claim 2, wherein the plurality of bulges are distributed one by one on both sides of the flat tube in three groups;
each group of bulges are distributed in a triangular shape.
4. An oil-free screw air compressor waste heat recoverer as claimed in claim 1, wherein a maintenance port is formed in the housing on one side of the air outlet buffer cavity, and a sealing plate is arranged on the maintenance port;
and a water-gas separator extending towards the inside of the air outlet buffer cavity is arranged on the maintenance port.
5. An oil-free screw air compressor waste heat recovery device as claimed in any one of claims 1 to 5, wherein the housing is a water-swelling integrated housing.
6. An oil-free screw air compressor waste heat recoverer as claimed in claim 5, wherein a mounting bracket is provided on the bottom of the housing.
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 true CN110608623A (en) | 2019-12-24 |
| CN110608623B 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 (9)
| 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 |
| 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 |
| 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 |
-
2019
- 2019-07-09 CN CN201910617106.9A patent/CN110608623B/en active Active
Patent Citations (9)
| 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 |
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN110608623B (en) | 2024-04-09 |
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