CN102620582A - Safety heat exchanger capable of monitoring leakage in real time - Google Patents
Safety heat exchanger capable of monitoring leakage in real time Download PDFInfo
- Publication number
- CN102620582A CN102620582A CN201210116922XA CN201210116922A CN102620582A CN 102620582 A CN102620582 A CN 102620582A CN 201210116922X A CN201210116922X A CN 201210116922XA CN 201210116922 A CN201210116922 A CN 201210116922A CN 102620582 A CN102620582 A CN 102620582A
- Authority
- CN
- China
- Prior art keywords
- end socket
- fluid
- vacuum layer
- heat exchanger
- vacuum
- 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
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a safety heat exchanger capable of monitoring leakage in real time. The safety heat exchanger comprises a cross-flow type shell and a heat exchanger core which is arranged in the cross-flow type shell, wherein a first fluid inlet, a second fluid inlet, a first fluid outlet and a second fluid outlet are respectively formed on a first sealing head, a second sealing head, a third sealing head and a fourth sealing head; a first vacuum layer sealing head is arranged at a joint of the first sealing head and the fourth sealing head; a vacuumizing device and a pressure detector or a material component detector are arranged on the first vacuum layer sealing head; a first vacuum layer is communicated with the first vacuum layer sealing head; a first fluid flow channel is respectively communicated with the first fluid inlet and the first fluid outlet; and a second fluid flow channel is respectively communicated with the second fluid inlet and the second fluid outlet. The safety heat exchanger capable of monitoring the leakage in real time is high in heat transfer efficiency, high in performance and high in equipment safety and can monitor the leakage situation in real time, and production safety and production quality are ensured.
Description
Technical field
The present invention relates to the field of Thermal Equipment, especially a kind of security heat exchanger of monitoring leakage in real time.
Background technology
At present, the kind of heat exchanger has a variety of, and plate-fin heat exchanger has very high heat exchange efficiency; But, cause the mixing of two media because its structure problem between adjacent fluid channels interior leakage possibly take place; Thereby possibly cause fault, the damage of equipment; Even possibly burn, some medium belongs to high pressure, poisonous fluid in addition, in case seepage will pollute even jeopardizes personal safety environment.
Under some special occasions; The fluid of heat exchanger both sides with regard to probably causing danger or causing the production safety accident, therefore causes contact for anti-heads in case leakage comes in contact; In these special occasions; The general other forms of heat exchanger that adopts efficient to be lower than plate-fin causes heat exchanger volume weight to increase, and cost rises.
Summary of the invention
The technical issues that need to address of the present invention are: in order to overcome the above-mentioned middle problem that exists, a kind of security heat exchanger of monitoring leakage in real time is provided, it can avoid two kinds of fluids contacts and safe and reliable that leakage conductance causes in the heat exchanger.
The technical solution adopted for the present invention to solve the technical problems is: a kind of security heat exchanger of monitoring leakage in real time; Comprise cross flow shell and the heat exchanger core body that is located in the cross flow shell; Be respectively equipped with first end socket, second end socket, the 3rd end socket and the 4th end socket around the described cross flow shell; Offer first fluid inlet, second fluid intake, first fluid outlet and second fluid issuing on first end socket, second end socket, the 3rd end socket and the 4th end socket respectively; Described first end socket and the 4th end socket junction are provided with the first vacuum layer end socket, and vacuum extractor and pressure detector or material composition detector are installed on the first vacuum layer end socket, and whether pressure detector can detect vacuum layer and leak; Vacuum layer pressure can raise rapidly when taking place to leak; Signal through feedback can definitely be learnt the generation of leakage, so that take emergency measures, the material composition detector can detect the concentration of material composition in the vacuum layer; Can feedback information when take place leaking; First vacuum layer that described heat exchanger core body comprises first fluid runner, second fluid course, be arranged between the first fluid runner and second fluid course is connected material with fin and the enhancing heat conduction that is filled in first vacuum layer in being installed in first fluid runner and second fluid course, strengthens heat conduction connection material require and is connected with the last lower wall surface of first vacuum layer, and the thermal conductivity factor and the heat-conducting area of material are bigger; Can be good at reducing the thermal resistance in the heat exchanger conduction process; Described first vacuum layer is connected with the first vacuum layer end socket, and first vacuum layer can play the effect of cutting off two side liquids, when taking place to leak; The fluid that leaks can leak in first vacuum layer; And can directly not contact with the fluid of opposite side, described first fluid runner is connected with first fluid inlet and first fluid outlet respectively, and second fluid course is connected with second fluid intake and second fluid issuing respectively.
Described vacuum extractor comprises vacuum pumping valve and vacuumizes interface, vacuumizes interface and is connected with the first vacuum layer end socket through vacuum pumping valve, and vacuum valve can be used in the vacuum that keeps vacuum layer.
A kind of security heat exchanger of monitoring leakage in real time; Comprise countercurrent housing and the heat exchanger core body that is located in the countercurrent housing; Described countercurrent housing both ends are provided with first water diversion part and second water diversion part respectively; Be respectively equipped with the 5th end socket, the 6th end socket, the 7th end socket and the 8th end socket around the countercurrent housing, the 5th end socket and the 8th end socket are located on first water diversion part, and the 6th end socket and the 7th end socket are located on second water diversion part; Offer the 3rd fluid intake, the 3rd fluid issuing, the 4th fluid intake and the 4th fluid issuing on the 5th end socket, the 6th end socket, the 7th end socket and the 8th end socket respectively; The second vacuum layer end socket is installed on the sidewall of described countercurrent housing, vacuum extractor and pressure detector or material composition detector are installed on the second vacuum layer end socket, whether pressure detector can detect vacuum layer and leak; Vacuum layer pressure can raise rapidly when taking place to leak; Signal through feedback can definitely be learnt the generation of leakage, so that take emergency measures, the material composition detector can detect the concentration of material composition in the vacuum layer; Can feedback information when take place leaking; Second vacuum layer that described heat exchanger core body comprises the 3rd fluid course, the 4th fluid course, be arranged between the 3rd fluid course and the 4th fluid course is connected material with fin and the enhancing heat conduction that is filled in second vacuum layer in being installed in the 3rd fluid course and the 4th fluid course, strengthens heat conduction connection material require and is connected with the last lower wall surface of first vacuum layer, and the thermal conductivity factor and the heat-conducting area of material are bigger; Can be good at reducing the thermal resistance in the heat exchanger conduction process; Described second vacuum layer is connected with the second vacuum layer end socket, and second vacuum layer can play the effect of cutting off two side liquids, when taking place to leak; The fluid that leaks can leak in second vacuum layer; And can directly not contact with the fluid of opposite side, described the 3rd fluid course is connected with the 3rd fluid intake and the 3rd fluid issuing respectively, and the 4th fluid course is connected with the 4th fluid intake and the 4th fluid issuing respectively.
Described vacuum extractor comprises vacuum pumping valve and vacuumizes interface, vacuumizes interface and is connected with the second vacuum layer end socket through vacuum pumping valve, and vacuum valve can be used in the vacuum that keeps vacuum layer.
The invention has the beneficial effects as follows: the security heat exchanger of described a kind of monitoring leakage in real time, adopt plate-fin heat exchanger, its heat transfer efficiency is higher, and volume is little, and is in light weight, superior performance; Adopt the design of vacuum layer, can avoid the contact of two kinds of fluids that one-sided leakage causes, device security is high; Adopt pressure detector or material composition detector, the monitoring leakage situation guarantees production safety and quality in real time.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the overall structure sketch map of cross flow structure of the security heat exchanger of a kind of monitoring leakage in real time of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the cutaway view of the A-A of Fig. 2;
Fig. 4 is the cutaway view of the B-B of Fig. 2;
Fig. 5 is the overall structure sketch map of reverse-flow structure of the security heat exchanger of a kind of monitoring leakage in real time of the present invention;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the cutaway view of the A-A direction of Fig. 6;
Fig. 8 is the cutaway view of the B-B direction of Fig. 6.
The accompanying drawing acceptance of the bid is kept the score and is stated as follows: 1, cross flow shell, 2, first end socket, 3, second end socket, the 4, the 3rd end socket, the 5, the 4th end socket; 6, first fluid inlet, 7, second fluid intake, 8, the first fluid outlet, 9, second fluid issuing, 10, the first vacuum layer end socket; 11, pressure detector or material composition detector, 12, the first fluid runner, 13, second fluid course, 14, first vacuum layer, 15, fin; 16, strengthen heat conduction and connect material, 17, countercurrent housing, 18, first water diversion part, 19, second water diversion part, the 20, the 5th end socket; 21, the 6th end socket, the 22, the 7th end socket, the 23, the 8th end socket, the 24, the 3rd fluid intake; 25, the 3rd fluid issuing, the 26, the 4th fluid intake, the 27, the 4th fluid issuing, 28, the second vacuum layer end socket; 29, the 3rd fluid course, the 30, the 4th fluid course, 31, second vacuum layer, 32, vacuum extractor.
The specific embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Security heat exchanger like Fig. 1, Fig. 2, Fig. 3 and a kind of monitoring leakage in real time shown in Figure 4; Comprise cross flow shell 1; Around cross flow shell 1, be respectively equipped with first end socket 2, second end socket 3, the 3rd end socket 4 and the 4th end socket 5; Offer first fluid inlet 6, second fluid intake 7, first fluid outlet 8 and second fluid issuing 9 on first end socket 2, second end socket 3, the 3rd end socket 4 and the 4th end socket 5 respectively; First end socket 2 and the 4th end socket 5 junctions are provided with and vacuum pumping valve are installed on the first vacuum layer end socket, 10, the first vacuum layer end sockets 10 and vacuumize interface and pressure detector or material composition detector 11, vacuumize interface and are connected with the first vacuum layer end socket 10 through vacuum pumping valve; Whether pressure detector can detect vacuum layer and leak; Vacuum layer pressure can raise rapidly when taking place to leak, and can definitely learn the generation of leakage through the signal of feedback, so that take emergency measures; The material composition detector can detect the concentration of material composition in the vacuum layer; Can feedback information when take place leaking, first vacuum layer 14 that at cross flow shell 1 inner mounting heat exchanger core body, heat exchanger core body comprises first fluid runner 12, second fluid course 13, be arranged between the first fluid runner 12 and second fluid course 13 is connected material 16 with fin 15 and enhancing heat conduction that are filled in first vacuum layer 14 in being installed in first fluid runner 12 and second fluid course 13; First vacuum layer 14 is connected with the first vacuum layer end socket 10; First fluid runner 12 is connected with first fluid inlet 6 and first fluid outlet 8 respectively, and second fluid course 13 is connected with second fluid intake 7 and second fluid issuing 9 respectively, when taking place to leak; The fluid that leaks side can leak in the vacuum layer, and can directly not contact with the fluid of opposite side.
Security heat exchanger like Fig. 5, Fig. 6, Fig. 7 and a kind of monitoring leakage in real time shown in Figure 8; Comprise countercurrent housing 18; Be provided with first water diversion part 18 and second water diversion part 19 respectively at countercurrent housing 17 both ends; Around countercurrent housing 17, be respectively equipped with the 5th end socket 20, the 6th end socket 21, the 7th end socket 22 and the 8th end socket 23; The 5th end socket 20 and the 8th end socket 23 are located on first water diversion part 18; The 6th end socket 21 and the 7th end socket 22 are located on second water diversion part 19, offer the 3rd fluid intake 24, the 3rd fluid issuing 25, the 4th fluid intake 26 and the 4th fluid issuing 27 on the 5th end socket 20, the 6th end socket 21, the 7th end socket 22 and the 8th end socket 23 respectively, and the second vacuum layer end socket 28 is installed on the sidewall of countercurrent housing 17; Vacuum pumping valve is installed on the second vacuum layer end socket 28 and vacuumizes interface and pressure detector or material composition detector 11; Whether pressure detector can detect vacuum layer and leak, and vacuum layer pressure can raise rapidly when taking place to leak, and can definitely learn the generation of leakage through the signal of feedback; So that take emergency measures, the material composition detector can detect the concentration of material composition in the vacuum layer.
Claims (4)
1. security heat exchanger of monitoring leakage in real time; It is characterized in that: comprise cross flow shell (1) and be located at the heat exchanger core body in the cross flow shell (1); Described cross flow shell (1) is respectively equipped with first end socket (2), second end socket (3), the 3rd end socket (4) and the 4th end socket (5) all around; Offer first fluid inlet (6), second fluid intake (7), first fluid outlet (8) and second fluid issuing (9) on first end socket (2), second end socket (3), the 3rd end socket (4) and the 4th end socket (5) respectively; Described first end socket (2) and the 4th end socket (5) junction are provided with the first vacuum layer end socket (10); Vacuum extractor (32) and pressure detector or material composition detector (11) are installed on the described first vacuum layer end socket (10); Described heat exchanger core body comprises first fluid runner (12), second fluid course (13), be arranged on first vacuum layer (14) between first fluid runner (12) and second fluid course (13), be installed in the fin (15) in first fluid runner (12) and second fluid course (13) and the enhancing heat conduction that is filled in first vacuum layer (14) is connected material (16); Described first vacuum layer (14) is connected with the first vacuum layer end socket (10); Described first fluid runner (12) is connected with first fluid inlet (6) and first fluid outlet (8) respectively, and second fluid course (13) is connected with second fluid intake (7) and second fluid issuing (9) respectively.
2. security heat exchanger of monitoring leakage in real time; It is characterized in that: comprise countercurrent housing (17) and be located at the heat exchanger core body in the countercurrent housing (17); Described countercurrent housing (17) both ends are provided with first water diversion part (18) and second water diversion part (19) respectively; Countercurrent housing (17) is respectively equipped with the 5th end socket (20), the 6th end socket (21), the 7th end socket (22) and the 8th end socket (23) all around; The 5th end socket (20) and the 8th end socket (23) are located on first water diversion part (18); The 6th end socket (21) and the 7th end socket (22) are located on second water diversion part (19); Offer the 3rd fluid intake (24), the 3rd fluid issuing (25), the 4th fluid intake (26) and the 4th fluid issuing (27) on the 5th end socket (20), the 6th end socket (21), the 7th end socket (22) and the 8th end socket (23) respectively; The second vacuum layer end socket (28) is installed on the sidewall of described countercurrent housing (17); Vacuum extractor (32) and pressure detector or material composition detector (11) are installed on the second vacuum layer end socket (28); Described heat exchanger core body comprises the 3rd fluid course (29), the 4th fluid course (30), be arranged on second vacuum layer (31) between the 3rd fluid course (29) and the 4th fluid course (30), be installed in the fin (15) in the 3rd fluid course (29) and the 4th fluid course (30) and the enhancing heat conduction that is filled in second vacuum layer (31) is connected material (16); Described second vacuum layer (31) is connected with the second vacuum layer end socket (28); Described the 3rd fluid course (29) is connected with the 3rd fluid intake (24) and the 3rd fluid issuing (25) respectively, and the 4th fluid course (30) is connected with the 4th fluid intake (26) and the 4th fluid issuing (27) respectively.
3. the security heat exchanger of a kind of monitoring leakage in real time according to claim 2; It is characterized in that: described vacuum extractor (32) comprises vacuum pumping valve and vacuumizes interface, vacuumizes interface and be connected with the second vacuum layer end socket (28) through vacuum pumping valve.
4. the security heat exchanger of a kind of monitoring leakage in real time according to claim 1; It is characterized in that: described vacuum extractor (32) comprises vacuum pumping valve and vacuumizes interface, vacuumizes interface and be connected with the first vacuum layer end socket (10) through vacuum pumping valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210116922.XA CN102620582B (en) | 2012-04-19 | 2012-04-19 | Safety heat exchanger capable of monitoring leakage in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210116922.XA CN102620582B (en) | 2012-04-19 | 2012-04-19 | Safety heat exchanger capable of monitoring leakage in real time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102620582A true CN102620582A (en) | 2012-08-01 |
| CN102620582B CN102620582B (en) | 2014-04-16 |
Family
ID=46560658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210116922.XA Expired - Fee Related CN102620582B (en) | 2012-04-19 | 2012-04-19 | Safety heat exchanger capable of monitoring leakage in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102620582B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673678A (en) * | 2013-11-30 | 2014-03-26 | 无锡金玺换热器有限公司 | Energy-saving heat exchanger for screw machine |
| CN104990433A (en) * | 2015-06-04 | 2015-10-21 | 中国科学院理化技术研究所 | Plate-fin heat exchanger |
| CN105953525A (en) * | 2016-06-24 | 2016-09-21 | 无锡市豫达换热器有限公司 | Novel nitrogen condensation type natural gas heat exchanger |
| CN106762450A (en) * | 2016-11-30 | 2017-05-31 | 北京金风科创风电设备有限公司 | Air heat exchanger leakage detection system and method and wind driven generator |
| CN111527366A (en) * | 2017-10-31 | 2020-08-11 | 查特能源化工股份有限公司 | Plate-fin fluid treatment apparatus, systems, and methods |
| CN115219113A (en) * | 2022-09-20 | 2022-10-21 | 中国核动力研究设计院 | Leakage detection method for micro-channel heat exchanger |
| CN115306979A (en) * | 2022-10-12 | 2022-11-08 | 中国核动力研究设计院 | Plugging device and plugging method for micro-channel heat exchanger |
| CN116412974A (en) * | 2023-06-09 | 2023-07-11 | 江苏奥琳斯邦装备科技股份有限公司 | Sealing detection device for heat exchanger |
| CN117109835A (en) * | 2023-10-20 | 2023-11-24 | 天合光能股份有限公司 | Monitoring device of water cooler in polycrystalline silicon preparation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246958A (en) * | 1978-03-21 | 1981-01-27 | Westinghouse Electric Corp. | Tube to tubesheet connection system |
| CN2241317Y (en) * | 1995-06-30 | 1996-11-27 | 清华大学 | Cross-current heat exchanger |
| CN1508506A (en) * | 2002-12-16 | 2004-06-30 | 清华大学 | Air counter flow heat exchanger |
| CN2681073Y (en) * | 2004-01-16 | 2005-02-23 | 湖北登峰换热器股份有限公司 | Double cooling pipe double tube sheet double protection cooler |
| CN101408466A (en) * | 2008-11-08 | 2009-04-15 | 宁夏电力科技教育工程院 | Method and device for detecting leakage of shell type heat exchanger |
-
2012
- 2012-04-19 CN CN201210116922.XA patent/CN102620582B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246958A (en) * | 1978-03-21 | 1981-01-27 | Westinghouse Electric Corp. | Tube to tubesheet connection system |
| CN2241317Y (en) * | 1995-06-30 | 1996-11-27 | 清华大学 | Cross-current heat exchanger |
| CN1508506A (en) * | 2002-12-16 | 2004-06-30 | 清华大学 | Air counter flow heat exchanger |
| CN2681073Y (en) * | 2004-01-16 | 2005-02-23 | 湖北登峰换热器股份有限公司 | Double cooling pipe double tube sheet double protection cooler |
| CN101408466A (en) * | 2008-11-08 | 2009-04-15 | 宁夏电力科技教育工程院 | Method and device for detecting leakage of shell type heat exchanger |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673678A (en) * | 2013-11-30 | 2014-03-26 | 无锡金玺换热器有限公司 | Energy-saving heat exchanger for screw machine |
| CN103673678B (en) * | 2013-11-30 | 2016-03-02 | 无锡金玺换热器有限公司 | Screw machine energy-saving heat exchanger |
| CN104990433A (en) * | 2015-06-04 | 2015-10-21 | 中国科学院理化技术研究所 | Plate-fin heat exchanger |
| CN105953525A (en) * | 2016-06-24 | 2016-09-21 | 无锡市豫达换热器有限公司 | Novel nitrogen condensation type natural gas heat exchanger |
| CN106762450A (en) * | 2016-11-30 | 2017-05-31 | 北京金风科创风电设备有限公司 | Air heat exchanger leakage detection system and method and wind driven generator |
| CN111527366B (en) * | 2017-10-31 | 2022-02-22 | 查特能源化工股份有限公司 | Plate-fin fluid treatment apparatus, systems, and methods |
| CN111527366A (en) * | 2017-10-31 | 2020-08-11 | 查特能源化工股份有限公司 | Plate-fin fluid treatment apparatus, systems, and methods |
| CN115219113A (en) * | 2022-09-20 | 2022-10-21 | 中国核动力研究设计院 | Leakage detection method for micro-channel heat exchanger |
| CN115219113B (en) * | 2022-09-20 | 2022-12-20 | 中国核动力研究设计院 | Leakage detection method for micro-channel heat exchanger |
| CN115306979A (en) * | 2022-10-12 | 2022-11-08 | 中国核动力研究设计院 | Plugging device and plugging method for micro-channel heat exchanger |
| CN115306979B (en) * | 2022-10-12 | 2022-12-30 | 中国核动力研究设计院 | Plugging device and plugging method for micro-channel heat exchanger |
| CN116412974A (en) * | 2023-06-09 | 2023-07-11 | 江苏奥琳斯邦装备科技股份有限公司 | Sealing detection device for heat exchanger |
| CN116412974B (en) * | 2023-06-09 | 2023-10-31 | 江苏奥琳斯邦装备科技股份有限公司 | Sealing detection device for heat exchanger |
| CN117109835A (en) * | 2023-10-20 | 2023-11-24 | 天合光能股份有限公司 | Monitoring device of water cooler in polycrystalline silicon preparation system |
| CN117109835B (en) * | 2023-10-20 | 2024-04-05 | 天合光能股份有限公司 | Monitoring device of water cooler in polycrystalline silicon preparation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102620582B (en) | 2014-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102620582B (en) | Safety heat exchanger capable of monitoring leakage in real time | |
| CN216347989U (en) | Rotary heat exchanger | |
| CN104697254A (en) | Liquid storage tank | |
| CN111426221B (en) | Half-and-half type up-and-down assembled heat exchanger and assembling method thereof | |
| CN205940230U (en) | Water chiller for compressed air | |
| CN205918707U (en) | Three -dimensional manage -style cold type oil cooler | |
| CN2864559Y (en) | Inner spiral fin pipe | |
| CN102095282A (en) | Refrigeration concentric circle sleeve-type vertical falling film absorber | |
| CN207095353U (en) | A kind of graphite heat exchanger | |
| CN207268583U (en) | A kind of diagonal stream welded plate type heat exchanger | |
| CN212205753U (en) | Half-and-half type up-and-down assembled heat exchanger | |
| CN213841839U (en) | Large-flux graphite heat exchanger | |
| CN211782944U (en) | Micro heat pipe flue gas heat exchange equipment | |
| CN206257082U (en) | Chemical pump under a kind of fire-resistant fluid | |
| CN201443817U (en) | Vacuum superconductive radiator | |
| CN2681073Y (en) | Double cooling pipe double tube sheet double protection cooler | |
| CN205909714U (en) | Graphite heat exchanger | |
| CN204993901U (en) | Water -cooling electrode structure of leak protection water | |
| CN203869551U (en) | Condenser | |
| CN216009761U (en) | High-efficient radiating oil field produces liquid measurement and uses multi-ported valve | |
| CN203404393U (en) | Eccentric butterfly valve | |
| CN203081911U (en) | Cooler used on hydraulic system | |
| CN218975569U (en) | Lightweight double-layer liquid cooling system structure | |
| CN220036871U (en) | Star-shaped cooling structure of upper and lower membrane heads of membrane compressor | |
| CN203518763U (en) | Core body structure for efficient heat-exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20150419 |
|
| EXPY | Termination of patent right or utility model |