CN113324421B - Condensate water waste heat recycling device - Google Patents
Condensate water waste heat recycling device Download PDFInfo
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- CN113324421B CN113324421B CN202110635598.1A CN202110635598A CN113324421B CN 113324421 B CN113324421 B CN 113324421B CN 202110635598 A CN202110635598 A CN 202110635598A CN 113324421 B CN113324421 B CN 113324421B
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- water
- storage tank
- outlet pipe
- water outlet
- bevel gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
- F28F13/125—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a condensate water waste heat recycling device which comprises a storage tank, wherein a water inlet pipe and a water outlet pipe are connected to the storage tank, a stop valve is arranged on the water inlet pipe, a first driving piece and a temperature sensor are arranged on the water outlet pipe, a three-way valve is arranged at the same time, two flow passage openings of the three-way valve are connected into the water outlet pipe, and the third flow passage opening is communicated with the storage tank through a return pipeline; the device further comprises a heat exchanger and a controller, the heat exchanger is communicated with the storage tank through a circulating heat exchange pipeline, a second driving piece is arranged on the circulating heat exchange pipeline, a signal input end of the controller is connected with a signal output end of the temperature sensor, and a signal output end of the controller is connected with the stop valve and a control end of the three-way valve. The device can collect boiler steam condensate to through the waste heat of heat transfer recovery condensate water, retrieve the heat and can utilize in other aspects, avoid calorific loss, and the condensate water discharge after the heat transfer cooling and the leading-in production link again, avoid the waste of water resource and manufacturing cost's improvement.
Description
Technical Field
The invention relates to the technical field of waste heat utilization, in particular to a condensate water waste heat recycling device.
Background
In the production and processing of chemical fertilizers, a steam boiler plays an important role, and in the existing steam boiler, steam is conveyed to heat utilization equipment from the steam boiler through a long-distance steam pipe network, condensed and released, and is discharged through a drain valve with a small amount of steam mixed with condensed water. The temperature of the discharged condensed water is close to 100 ℃, the discharged condensed water still has higher utilization value, the direct high-temperature discharge forms a large amount of heat loss, meanwhile, in order to reduce the scaling of the boiler, the steam condensed water generally adopts the treated soft water, and the direct discharge can also cause the waste of water resources and the improvement of the production cost.
Disclosure of Invention
The invention aims to provide a condensate water waste heat recycling device, which solves the problems of heat loss, water resource waste and production cost improvement caused by direct discharge of steam condensate water.
The invention realizes the purpose through the following technical scheme:
a condensate water waste heat recycling device comprises a storage tank for collecting condensate water, wherein a water inlet pipe and a water outlet pipe are connected to the storage tank, a stop valve is arranged on the water inlet pipe, a first driving piece for driving the condensate water to be discharged and a temperature sensor for monitoring the temperature value of the discharged condensate water are arranged on the water outlet pipe, a three-way valve is arranged on the water outlet pipe and positioned on the downstream side of the temperature sensor, two of the three-way valve are connected into the water outlet pipe, and the third flow port is communicated with the storage tank through a backflow pipeline; the device still includes heat exchanger and controller, the heat exchanger passes through circulation heat transfer pipeline and holding vessel intercommunication, and is equipped with the second driving piece that is used for driving the comdenstion water and carries out the circulation flow on the circulation heat transfer pipeline, the signal input part of controller is connected with temperature sensor's signal output part, and the signal output part of controller is connected with the control end of stop valve and tee bend valve.
The device is further improved in that the controller acquires the temperature value of the discharged condensed water through the temperature sensor, controls the stop valve to be opened when the temperature value is lower than or equal to a threshold value, controls the three-way valve to act to directly discharge the condensed water in the water outlet pipe through the water outlet pipe, controls the stop valve to be closed when the temperature value is higher than the threshold value, and controls the three-way valve to act to return the condensed water in the water outlet pipe to the storage tank through the return pipeline.
The further improvement is that the water outlet pipe is provided with a filter for filtering the condensed water directly discharged by the water outlet pipe.
In a further improvement, the output end of the controller is connected with the control ends of the first driving piece and the second driving piece.
The improved structure of the circulating heat exchange pipeline comprises a storage tank, wherein a guide cylinder is arranged on the inner wall of the storage tank at a joint communicated with the circulating heat exchange pipeline, a central rod is movably arranged in the guide cylinder through a rotating frame, a plurality of groups of impellers are arranged on the outer wall of the central rod, water flow penetrating through the guide cylinder can drive the impellers and the central rod to rotate, the end of the central rod extends out of the guide cylinder, a first bevel gear is arranged at the end of the guide cylinder, a mounting seat is further arranged in the storage tank, a rotating shaft is movably mounted on the mounting seat, a second bevel gear and a plurality of groups of stirring sheets are arranged on the rotating shaft, and the second bevel gear is meshed with the first bevel gear.
The improved structure is characterized in that the guide shell is horizontally arranged in the storage tank, the rotating shaft is vertically arranged in the storage tank, and the first bevel gear and the second bevel gear are vertically meshed and connected with each other.
The further improvement is that the radius of the second bevel gear is larger than the radius of the first bevel gear.
The further improvement lies in that a turnover plate liquid level meter and a pressure gauge are arranged on the storage tank.
The further improvement is that the circulating heat exchange pipeline is provided with a switch valve at a position close to the position communicated with the storage tank.
The invention has the beneficial effects that: the device can collect boiler steam condensate water, and recover waste heat in the condensate water through heat exchange, the recovered heat can be utilized in other aspects, heat loss is avoided, the condensate water after heat exchange and cooling is discharged and guided into a production link again, and waste of water resources and improvement of production cost are avoided;
in addition, the device can monitor the temperature value of the discharged condensed water in real time in the operation process, and when the discharged condensed water still contains available heat, the condensed water can be automatically reintroduced into the storage tank, so that the heat contained in the condensed water can be fully recovered no matter how much the initial heat of the condensed water is, and the recovery rate is improved; meanwhile, the device can utilize the fluid power of the heat exchange cycle to drive the condensed water stored in the storage tank to stir, so that the temperature of the condensed water in the storage tank is uniform, the heat exchange efficiency and the controllability of the discharge process are ensured, and the reduction of energy consumption is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the interior of the storage tank;
in the figure: 1. a storage tank; 2. a water inlet pipe; 3. a water outlet pipe; 4. a stop valve; 5. a first driving member; 6. a temperature sensor; 7. a three-way valve; 8. a return line; 9. a heat exchanger; 10. a controller; 11. a circulating heat exchange pipeline; 12. a second driving member; 13. a filter; 14. a draft tube; 15. a rotating frame; 16. a center pole; 17. an impeller; 18. a first bevel gear; 19. a mounting base; 20. a rotating shaft; 21. a second bevel gear; 22. a stirring sheet; 23. a flap level gauge; 24. a pressure gauge; 25. and (4) switching on and off the valve.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Referring to fig. 1 and 2, a condensate water waste heat recycling device includes a storage tank 1 for collecting condensate water, the storage tank 1 is connected with a water inlet pipe 2 and a water outlet pipe 3, the water inlet pipe 2 and the water outlet pipe 3 can be connected with boiler production equipment to form a loop, the water inlet pipe 2 is provided with an electrically controllable stop valve 4, the water outlet pipe 3 is provided with a first driving member 5 for driving the discharge of the condensate water and a temperature sensor 6 for monitoring the temperature value of the discharged condensate water, and meanwhile, an electrically controllable three-way valve 7 is arranged on the water outlet pipe 3 at the downstream side of the temperature sensor 6 (i.e. the condensate water discharged from the water outlet pipe 3 passes through the temperature sensor 6 and then the three-way valve 7), two flow ports of the three-way valve 7 are connected to the water outlet pipe 3, and the third flow port is communicated with the storage tank 1 through a return pipe 8; the device still includes heat exchanger 9 and controller 10, and heat exchanger 9 communicates with holding vessel 1 through circulation heat transfer pipeline 11, and is equipped with the second driving piece 12 that is used for driving the comdenstion water and carries out circulation flow on circulation heat transfer pipeline 11, and the signal input part of controller 10 is connected with temperature sensor 6's signal output part, and the signal output part of controller 10 is connected with stop valve 4 and three-way valve 7's control end.
The controller 10 obtains the temperature value of the discharged condensed water through the temperature sensor 6, and when the temperature value is lower than or equal to the threshold value, the stop valve 4 is controlled to be opened, and the three-way valve 7 is controlled to act to enable the condensed water in the water outlet pipe 3 to be directly discharged from the water outlet pipe 3, and when the temperature value is higher than the threshold value, the stop valve 4 is controlled to be closed, and simultaneously the three-way valve 7 is controlled to act to enable the condensed water in the water outlet pipe 3 to flow back to the storage tank 1 through the return pipeline 8.
When the steam condensate water circulating device works, steam condensate water is conveyed into the storage tank 1 through the water inlet pipe 2, the first driving piece 5 and the second driving piece 12 are started, the condensate water in the storage tank 1 can circularly flow along the circulating heat exchange pipeline 11, heat carried by the condensate water passes through the heat exchanger 9 in the circulating process and is absorbed by the heat exchanger 9, the temperature of the condensate water is continuously reduced, meanwhile, the condensate water in the storage tank 1 can be discharged through the water outlet pipe 3, the temperature sensor 6 acquires a temperature value signal of the discharged condensate water during discharging and transmits the acquired signal to the controller 10, the controller 10 is preset with a temperature threshold value which can be set to be 35 ℃ for example, the controller 10 compares the acquired temperature value with the threshold value, when the temperature value is lower than or equal to 35 ℃, the stop valve 4 is controlled to be opened, and the three-way valve 7 is controlled to act so that the condensate water in the water outlet pipe 3 is directly discharged through the water outlet pipe 3, and in the state, the heat of the condensate water discharged from the storage tank 1 is basically absorbed and can be directly discharged, new condensate water can be continuously supplemented, and dynamic balance can be maintained; when the temperature value is higher than the threshold value, the available heat in the discharged condensed water is indicated, the stop valve 4 is controlled to be closed at the moment, the new condensed water is stopped to be supplemented, meanwhile, the three-way valve 7 is controlled to act to enable the condensed water in the water outlet pipe 3 to flow back to the storage tank 1 through the backflow pipeline 8, the condensed water is enabled to continuously participate in heat exchange, and after the integral temperature of the condensed water in the storage tank 1 is lower than the threshold value, the three-way valve 7 is controlled to act to enable the condensed water to be directly discharged.
In addition, the temperature sensor 6 is arranged at the position of the water outlet pipe 3, and the temperature of the discharged water is always acquired, so that the authenticity and the validity of data can be improved. And for further precise control, a timer may be provided in the controller 10, a time delay of the timer is set according to the time from the position of the temperature sensor 6 to the position of the three-way valve 7, for example, 0.3s, and the controller 10 controls the operation of the three-way valve 7 after 0.3s according to the time delay. For example, when the monitored temperature value is higher than the threshold value, the three-way valve 7 is controlled to act for another 0.3s, so that the condensed water in the water outlet pipe 3 flows back to the storage tank 1 through the return pipeline 8, and the effectiveness is further improved.
In the invention, the water outlet pipe 3 is provided with the filter 13, and the filter 13 is arranged on the water outlet pipe 3 and positioned at the downstream side of the water outlet of the three-way valve 7, and is used for filtering the condensed water directly discharged from the water outlet pipe 3, thereby ensuring the long-term availability of the condensed water and reducing the scaling and precipitation phenomena of the boiler. In addition, the output end of the controller 10 is connected with the control ends of the first driving piece 5 and the second driving piece 12, which is beneficial to unified control.
According to the invention, a guide cylinder 14 is arranged at a joint of the inner wall of a storage tank 1 and communicated with a circulating heat exchange pipeline 11, a central rod 16 is movably arranged in the guide cylinder 14 through a rotating frame 15, the rotating frame 15 cannot influence the flow of water, the central rod 16 is positioned at the central position of the guide cylinder 14, a plurality of groups of impellers 17 are arranged on the outer wall of the central rod 16, water flow passing through the guide cylinder 14 can drive the impellers 17 and the central rod 16 to rotate, the end of the central rod 16 extends out of the guide cylinder 14, a first bevel gear 18 is arranged at the end, a mounting seat 19 is further arranged in the storage tank 1, a rotating shaft 20 is movably mounted through the mounting seat 19, a second bevel gear 21 and a plurality of groups of stirring blades 22 are arranged on the rotating shaft 20, and the second bevel gear 21 is meshed with the first bevel gear 18.
When carrying out the comdenstion water heat transfer circulation, the comdenstion water can advance and get into draft tube 14, rivers that pass in the draft tube 14 can drive impeller 17 and well core rod 16 and rotate, thereby drive first bevel gear 18, second bevel gear 21 rotates, and then drive pivot 20 and stirring piece 22 and rotate, stirring piece 22 plays the stirring effect in holding vessel 1, make the comdenstion water constantly disturb, the temperature tends to unanimity throughout all over, avoid the comdenstion water of lower temperature to carry out the heat transfer circulation repeatedly on the one hand like this, and the comdenstion water insufficient heat transfer phenomenon of the higher temperature that needs the heat transfer on the contrary, be favorable to the improvement of heat transfer effect, on the other hand makes the temperature detection of outlet pipe 3 department have the reliability.
In the invention, the guide cylinder 14 is horizontally arranged in the storage tank 1, the rotating shaft 20 is vertically arranged in the storage tank 1, and the first bevel gear 18 and the second bevel gear 21 are vertically meshed and connected with each other.
The purpose of uniform mixing is achieved by disturbing the water flow in the storage tank 1, a large rotating speed is not needed, and the large rotating speed can bring large rotating resistance, so that the flow of the condensed water in the circulating heat exchange pipeline 11 can be influenced to a certain extent. Therefore, in the present invention, the radius of the second bevel gear 21 is designed to be larger than the radius of the first bevel gear 18, and the second bevel gear 21 is meshed with the first bevel gear 18 to form a speed reduction mechanism, so that the water flow speed in the circulating heat exchange pipeline 11 is generally high, the rotating speed of the first bevel gear 18 is high, and the second bevel gear 21 rotates at a slower angular speed under the speed reduction effect, thereby effectively solving the above problems.
In the invention, a turning plate liquid level meter 23 and a pressure gauge 24 are arranged on the storage tank 1 and are used for monitoring the liquid level and the pressure in the storage tank 1 in real time, so that the operation safety of the equipment is improved. In addition, the circulation heat exchange pipe 11 is provided with an on-off valve 25 near a position communicating with the storage tank 1, and can be used for manual control.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides a comdenstion water waste heat recovery utilizes device, is including storage tank (1) that is used for collecting the comdenstion water, be connected with inlet tube (2) and outlet pipe (3) on storage tank (1), its characterized in that: a stop valve (4) is arranged on the water inlet pipe (2), a first driving piece (5) for driving condensed water to be discharged and a temperature sensor (6) for monitoring the temperature value of the discharged condensed water are arranged on the water outlet pipe (3), a three-way valve (7) is arranged on the water outlet pipe (3) and positioned on the downstream side of the temperature sensor (6), two of the three-way valve (7) are connected into the water outlet pipe (3), and the third flow port is communicated with the storage tank (1) through a backflow pipeline (8); the device further comprises a heat exchanger (9) and a controller (10), wherein the heat exchanger (9) is communicated with the storage tank (1) through a circulating heat exchange pipeline (11), a second driving piece (12) used for driving condensate water to circularly flow is arranged on the circulating heat exchange pipeline (11), a signal input end of the controller (10) is connected with a signal output end of the temperature sensor (6), and a signal output end of the controller (10) is connected with a stop valve (4) and a control end of a three-way valve (7);
the utility model discloses a circulating heat exchange device, including holding vessel (1), circulating heat exchange pipeline (11), connecting portion, the kneck of holding vessel (1) inner wall with circulating heat exchange pipeline (11) intercommunication is equipped with draft tube (14), be equipped with a well core rod (16) through swivel mount (15) activity in draft tube (14), the outer wall of well core rod (16) is equipped with a plurality of groups impeller (17), and rivers that pass in draft tube (14) can drive impeller (17) and well core rod (16) and rotate, and well core rod (16) end extends draft tube (14), and is equipped with first bevel gear (18) in end department, still be equipped with mount pad (19) in holding vessel (1), through mount pad (19) movable mounting has a pivot (20), be equipped with second bevel gear (21) and a plurality of groups stirring piece (22) on pivot (20), second bevel gear (21) are connected with first bevel gear (18) meshing.
2. The condensate water waste heat recycling device according to claim 1, characterized in that: the controller (10) obtains the temperature value of the discharged condensed water through the temperature sensor (6), and when the temperature value is lower than or equal to a threshold value, the stop valve (4) is controlled to be opened, meanwhile, the three-way valve (7) is controlled to act so that the condensed water in the water outlet pipe (3) is directly discharged from the water outlet pipe (3), when the temperature value is higher than the threshold value, the stop valve (4) is controlled to be closed, and meanwhile, the three-way valve (7) is controlled to act so that the condensed water in the water outlet pipe (3) flows back to the storage tank (1) through the return pipeline (8).
3. The condensate water waste heat recycling device according to claim 2, characterized in that: and the water outlet pipe (3) is provided with a filter (13) for filtering the condensed water directly discharged from the water outlet pipe (3).
4. The condensate water waste heat recycling device according to claim 1, characterized in that: the output end of the controller (10) is connected with the control ends of the first driving piece (5) and the second driving piece (12).
5. The condensate water waste heat recycling device according to claim 1, characterized in that: the guide cylinder (14) is horizontally arranged in the storage tank (1), the rotating shaft (20) is vertically arranged in the storage tank (1), and the first bevel gear (18) and the second bevel gear (21) are in mutually vertical meshed connection.
6. The condensate water waste heat recycling device according to claim 1, characterized in that: the radius of the second bevel gear (21) is larger than that of the first bevel gear (18).
7. The condensate water waste heat recycling device according to claim 1, characterized in that: and a turning plate liquid level meter (23) and a pressure gauge (24) are arranged on the storage tank (1).
8. The condensate water waste heat recycling device according to claim 1, characterized in that: and a switch valve (25) is arranged at a position, close to the position communicated with the storage tank (1), of the circulating heat exchange pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635598.1A CN113324421B (en) | 2021-06-08 | 2021-06-08 | Condensate water waste heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635598.1A CN113324421B (en) | 2021-06-08 | 2021-06-08 | Condensate water waste heat recycling device |
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| CN113324421A CN113324421A (en) | 2021-08-31 |
| CN113324421B true CN113324421B (en) | 2022-11-08 |
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| CN202110635598.1A Active CN113324421B (en) | 2021-06-08 | 2021-06-08 | Condensate water waste heat recycling device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1033546A2 (en) * | 1999-03-03 | 2000-09-06 | Zoltan Koller | Heat exchanger for recovering waste heat from waste water |
| JP2005321190A (en) * | 2004-05-10 | 2005-11-17 | Tojun Sai | Exhaust heat recovery device of heat generation furnace |
| CN203949153U (en) * | 2014-06-13 | 2014-11-19 | 云南能投有能科技股份有限公司 | Secondary deoxygenation exhaust steam condenser system is reclaimed in condensed water demineralized water heat exchange mixing exhaust steam |
| CN108317868A (en) * | 2018-02-07 | 2018-07-24 | 新昌县海格赛斯贸易有限公司 | A kind of steam heat recovery structure |
| CN108332576A (en) * | 2018-02-07 | 2018-07-27 | 新昌县海格赛斯贸易有限公司 | A kind of steam afterheat recovery device |
| CN111707119A (en) * | 2020-05-27 | 2020-09-25 | 吴波 | Large-temperature-difference heat exchange waste heat recovery device |
| CN212205709U (en) * | 2020-05-11 | 2020-12-22 | 上海医苑节能科技有限公司 | Steam condensate waste heat recovery economizer and system |
-
2021
- 2021-06-08 CN CN202110635598.1A patent/CN113324421B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1033546A2 (en) * | 1999-03-03 | 2000-09-06 | Zoltan Koller | Heat exchanger for recovering waste heat from waste water |
| JP2005321190A (en) * | 2004-05-10 | 2005-11-17 | Tojun Sai | Exhaust heat recovery device of heat generation furnace |
| CN203949153U (en) * | 2014-06-13 | 2014-11-19 | 云南能投有能科技股份有限公司 | Secondary deoxygenation exhaust steam condenser system is reclaimed in condensed water demineralized water heat exchange mixing exhaust steam |
| CN108317868A (en) * | 2018-02-07 | 2018-07-24 | 新昌县海格赛斯贸易有限公司 | A kind of steam heat recovery structure |
| CN108332576A (en) * | 2018-02-07 | 2018-07-27 | 新昌县海格赛斯贸易有限公司 | A kind of steam afterheat recovery device |
| CN212205709U (en) * | 2020-05-11 | 2020-12-22 | 上海医苑节能科技有限公司 | Steam condensate waste heat recovery economizer and system |
| CN111707119A (en) * | 2020-05-27 | 2020-09-25 | 吴波 | Large-temperature-difference heat exchange waste heat recovery device |
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| CN113324421A (en) | 2021-08-31 |
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Denomination of invention: A device for recovering and utilizing waste heat from condensate water Effective date of registration: 20230524 Granted publication date: 20221108 Pledgee: Xuancheng Zhenxuan Financing Guarantee Group Co.,Ltd. Pledgor: ANHUI JIAYA ECOLOGICAL ENGINEERING Co.,Ltd. Registration number: Y2023980041548 |