CN214666275U - Novel plate type heat exchanger unit - Google Patents
Novel plate type heat exchanger unit Download PDFInfo
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- CN214666275U CN214666275U CN202120567574.2U CN202120567574U CN214666275U CN 214666275 U CN214666275 U CN 214666275U CN 202120567574 U CN202120567574 U CN 202120567574U CN 214666275 U CN214666275 U CN 214666275U
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- heat exchanger
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- pipe
- water inlet
- water outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 244
- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- 238000012546 transfer Methods 0.000 abstract description 17
- 238000010438 heat treatment Methods 0.000 description 7
- 230000003020 moisturizing effect Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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Abstract
The utility model particularly relates to a novel plate heat exchanger unit, which comprises a spiral tube type heat exchanger, a first plate type heat exchanger and a second plate type heat exchanger; a heat medium water inlet of the plate heat exchanger is connected with a primary water supply pipe; a heat medium water outlet of the plate heat exchanger is connected with a primary water return pipe; a three-way electromagnetic valve is installed on the primary water supply pipe and is connected with a heat medium water inlet of the spiral pipe type heat exchanger, and a heat medium water outlet of the spiral pipe type heat exchanger is connected with a second water inlet pipe; a refrigerant water inlet of the plate heat exchanger is connected with a secondary water supply pipe; a refrigerant water outlet of the plate heat exchanger is connected with a secondary water return pipe; a three-way electromagnetic valve of the secondary water supply pipe is connected with a refrigerant water inlet of the spiral pipe type heat exchanger; the refrigerant water outlet of the spiral tube type heat exchanger is connected with a water mixing tube through a three-way electromagnetic valve, and the water mixing tube is connected with a secondary water supply tube. The utility model discloses a mode of parallelly connected heat transfer and series connection circulation heat transfer has improved heat exchange efficiency, has reduced equipment damage probability.
Description
Technical Field
The utility model relates to a heat exchanger unit technical field, in particular to novel plate-type heat exchanger unit.
Background
The plate heat exchanger has the advantages of high heat transfer efficiency, energy conservation, economy, compact structure, convenient disassembly and the like. The heat exchanger is widely applied to industrial departments such as chemical industry, electric power, petroleum, metallurgy, food, medicine, ships, electromechanics, textile, paper making and the like, and is also widely applied to urban centralized heat supply and heat energy recovery engineering; the plate heat exchanger has the advantages of small heat loss, convenient disassembly, cleaning, convenient maintenance and the like.
The spiral tube heat exchanger is made up by placing one or more groups of tubes wound into a spiral form in a shell. It is characterized by compact structure, larger heat transfer area than straight pipe, and small temperature difference stress; the spiral tube type heat exchanger has lower heat exchange efficiency than a plate type heat exchanger, and the spiral tube type heat exchanger is used independently, so that the heat exchange efficiency is low, and the equipment maintenance cost is high; although the heat exchange efficiency of the plate heat exchanger is high, the temperature of a heating medium is too high, so that the plate heat exchanger is easily damaged, the maintenance cost of equipment is increased, and the heat exchange efficiency is reduced; therefore to above-mentioned problem, this application has designed the equipment of cyclic utilization heat energy, improves heat exchange efficiency, reduces the equipment and damages the risk, has reduced the maintenance cost of equipment.
Disclosure of Invention
The utility model aims at providing a novel plate heat exchanger group in order to solve above-mentioned prior art not enough.
In order to achieve the above object, the utility model adopts the following technical scheme:
a novel plate heat exchanger unit comprises a spiral tube type heat exchanger and a plate type heat exchanger, wherein the plate type heat exchanger comprises a first plate type heat exchanger and a second plate type heat exchanger; the heat medium water inlet of the first plate type heat exchanger is connected with the first water inlet pipe through a butterfly valve, and the heat medium water inlet of the second plate type heat exchanger is connected with the second water inlet pipe through a butterfly valve; the first water inlet pipe and the second water inlet pipe are connected in parallel and connected with a primary water supply pipe; the first water inlet pipe is sequentially connected with a temperature sensor, a pressure sensor, an electromagnetic valve and a blow-down valve in series; the second water inlet pipe is sequentially connected with a temperature sensor, a pressure sensor, an electromagnetic valve and a blow-down valve in series; the heat medium water outlet of the first plate type heat exchanger is connected with a first water outlet pipe through a butterfly valve, and the heat medium water outlet of the second plate type heat exchanger is connected with a second water outlet pipe through a butterfly valve; the first water outlet pipe and the second water outlet pipe are connected in parallel and connected with the primary water return pipe; a three-way electromagnetic valve is mounted on the primary water supply pipe, the three-way electromagnetic valve is connected with a heat medium water inlet of the spiral tube type heat exchanger through a fifth water inlet pipe, and a heat medium water outlet of the spiral tube type heat exchanger is respectively connected with a fifth water outlet pipe and a sixth water outlet pipe; the sixth water outlet pipe is connected with the second water inlet pipe, and the sixth water outlet pipe is provided with an electromagnetic valve; the refrigerant water inlet of the first plate heat exchanger is connected with a third water inlet pipe through a butterfly valve, the refrigerant water inlet of the second plate heat exchanger is connected with a fourth water inlet pipe through a butterfly valve, and the third water inlet pipe is connected with the fourth water inlet pipe in parallel and is connected with a secondary water supply pipe; the refrigerant water outlet of the first plate heat exchanger is connected with a third water outlet pipe through a butterfly valve, the refrigerant water outlet of the second plate heat exchanger is connected with a fourth water outlet pipe through a butterfly valve, and the third water outlet pipe and the fourth water outlet pipe are connected in parallel and connected with a secondary water return pipe; a safety valve, a circulating water pump and a three-way electromagnetic valve are sequentially arranged on the secondary water supply pipe; the three-way electromagnetic valve on the secondary water supply pipe is connected with a refrigerant water inlet of the spiral tube type heat exchanger through a sixth water inlet pipe; a refrigerant water outlet of the spiral tube type heat exchanger is connected with a seventh water outlet pipe; the fifth water outlet pipe is connected with a water mixing pipe through a three-way electromagnetic valve, and the water mixing pipe is connected with a secondary water supply pipe; the temperature sensor, the pressure sensor, the electromagnetic valve, the three-way electromagnetic valve and the circulating water pump are respectively connected with the PLC control unit.
Further, an exhaust valve is arranged between the electromagnetic valve on the first water inlet pipe and the drain valve; and an exhaust valve is arranged between the electromagnetic valve on the second water inlet pipe and the drain valve.
Furthermore, electromagnetic valves are respectively installed on the third water inlet pipe and the fourth water inlet pipe.
Furthermore, a temperature sensor and a pressure sensor are respectively arranged on the third water outlet pipe and the fourth water outlet pipe.
Furthermore, be connected with the moisturizing pipe on the muddy water pipe, install the moisturizing pump on the moisturizing pipe.
Furthermore, two water replenishing pumps which are connected in parallel are installed on the water replenishing pipe.
Furthermore, the water replenishing pump is connected with the PLC control unit.
The utility model discloses a first plate heat exchanger and second plate heat exchanger to first plate heat exchanger and second plate heat exchanger parallel connection can use alone also can use simultaneously, have improved heat exchange efficiency, simultaneously the utility model discloses series connection spiral tubular heat exchanger has realized once heat transfer through spiral tubular heat exchanger and has played the effect of adjusting the temperature that gets into the heat medium of second plate heat exchanger simultaneously, avoids the heat medium temperature that gets into in the second plate heat exchanger too high; the utility model has the advantages that the first water inlet pipe and the second water inlet pipe are provided with the drain valves, so that the deposition of impurities in the first plate heat exchanger and the second plate heat exchanger can be reduced; the utility model discloses a temperature sensor, pressure sensor, solenoid valve, three way solenoid valve, circulating water pump, moisturizing pump are connected with PLC the control unit respectively, through the temperature and the pressure of the temperature in the monitoring pipeline, the circulation heat transfer in the controlgear that can be better.
The utility model provides a beneficial effect that technical scheme brought is:
1. the utility model adopts the first plate heat exchanger and the second plate heat exchanger, and the first plate heat exchanger and the second plate heat exchanger are connected in parallel, which can be used independently or simultaneously, increases the heat exchange flow and improves the heat exchange efficiency;
2. the utility model discloses a spiral tube heat exchanger and second plate heat exchanger's series connection mode, through spiral tube heat exchanger's a heat transfer, reduced the temperature of heat medium, avoid too high heat medium temperature to lead to plate heat exchanger's damage, improved heat exchange efficiency.
3. The utility model discloses a parallelly connected circulation heat transfer and the mode of series connection circulation heat transfer have improved the heat transfer ability to different heat sources on the one hand, have reduced equipment damage probability on the one hand, are more convenient for maintain.
Drawings
FIG. 1 is a schematic view of the structural connection of the present invention;
1. the spiral tube type heat exchanger comprises a spiral tube type heat exchanger body, 2, a first plate type heat exchanger body, 3, a second plate type heat exchanger body, 4, a first water inlet pipe, 5, a second water inlet pipe, 6, a third water inlet pipe, 7, a fourth water inlet pipe, 8, a fifth water inlet pipe, 9, a sixth water inlet pipe, 10, a first water outlet pipe, 11, a second water outlet pipe, 12, a third water outlet pipe, 13, a fourth water outlet pipe, 14, a fifth water outlet pipe, 15, a sixth water outlet pipe, 16, a seventh water outlet pipe, 17, a primary water supply pipe, 18, a primary water return pipe, 19, a secondary water supply pipe, 20, a secondary water return pipe, 21, a temperature sensor, 22, a pressure sensor, 23, an electromagnetic valve, 24, a three-way electromagnetic valve, 25, a circulating water pump, 26, a water replenishing pump, 27, a butterfly valve, 28, an exhaust valve, 29, a safety valve, 30, a blow-off valve, 31, a water mixing pipe, 32 and a water replenishing pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. To the ordinary technical personnel in this field, can understand the specific meaning in the utility model of above-mentioned term with the concrete condition, the utility model provides an electrical apparatus's model is the reference only, can be through changing different models electrical apparatus that the function is the same according to the actual use condition.
As shown in the attached drawing 1, the present invention adopts a water-water heat exchange mode, the present embodiment includes a spiral tube type heat exchanger 1 and a plate type heat exchanger, when the heat medium is hot water, the temperature does not exceed the load of the plate type heat exchanger, the first plate type heat exchanger 2 and the second plate type heat exchanger 3 are used in parallel, the plate type heat exchanger includes the first plate type heat exchanger 2 and the second plate type heat exchanger 3; the heat medium water inlet of the first plate heat exchanger 2 is connected with the first water inlet pipe 4 through a butterfly valve 27, and the heat medium water inlet of the second plate heat exchanger 3 is connected with the second water inlet pipe 5 through the butterfly valve 27; the first water inlet pipe 4 is connected with the second water inlet pipe 5 in parallel and is connected with a primary water supply pipe 17; the first water inlet pipe 4 is sequentially connected with a temperature sensor 21, a pressure sensor 22, an electromagnetic valve 23 and a blow-down valve 30 in series; the second water inlet pipe 5 is sequentially connected with a temperature sensor 21, a pressure sensor 22, an electromagnetic valve 23 and a blow-down valve 30 in series; the heat medium water outlet of the first plate type heat exchanger 2 is connected with the first water outlet pipe 10 through a butterfly valve 27, and the heat medium water outlet of the second plate type heat exchanger 3 is connected with the second water outlet pipe 11 through the butterfly valve 27; the first water outlet pipe 10 is connected with the second water outlet pipe 11 in parallel and is connected with a primary water return pipe 18; the refrigerant water inlet of the first plate heat exchanger 2 is connected with a third water inlet pipe 6 through a butterfly valve 27, the refrigerant water inlet of the second plate heat exchanger 3 is connected with a fourth water inlet pipe 7 through the butterfly valve 27, and the third water inlet pipe 6 is connected with the fourth water inlet pipe 7 in parallel and is connected with a secondary water supply pipe 19; the refrigerant water outlet of the first plate heat exchanger 2 is connected with a third water outlet pipe 12 through a butterfly valve 27, the refrigerant water outlet of the second plate heat exchanger 3 is connected with a fourth water outlet pipe 13 through the butterfly valve 27, and the third water outlet pipe 12 and the fourth water outlet pipe 13 are connected in parallel and connected with a secondary water return pipe 20; the secondary water supply pipe 19 is sequentially provided with a safety valve 29, a circulating water pump 25 and a three-way electromagnetic valve 24; the heating medium respectively enters the first plate heat exchanger 2 and the second plate heat exchanger 3 through the primary water supply pipe 17 for heat exchange; the flow of the heating medium is improved; an exhaust valve 28 is arranged between the electromagnetic valve 23 on the first water inlet pipe 4 and the blowdown valve 30; an exhaust valve 28 is arranged between the electromagnetic valve 23 on the second water inlet pipe 5 and the blow-down valve 30; the air resistance effect in the heat exchange process is reduced through the exhaust valve 28; and a blowoff valve 30 is provided to prevent impurities in the heating medium from depositing in the plate heat exchanger; this embodiment adopts first plate heat exchanger 2 and second plate heat exchanger 3 to first plate heat exchanger 2 and 3 parallel connection of second plate heat exchanger can also use simultaneously by the exclusive use, have increased the flow of heat transfer, have improved heat exchange efficiency.
When the heating medium is high-temperature hot water, the spiral tube type heat exchanger 1 and the second plate type heat exchanger 3 are connected in series for use, a three-way electromagnetic valve 24 is installed on a primary water supply pipe 17, the three-way electromagnetic valve 24 is connected with a heating medium water inlet of the spiral tube type heat exchanger 1 through a fifth water inlet pipe 8, and a heating medium water outlet of the spiral tube type heat exchanger 1 is respectively connected with a fifth water outlet pipe 14 and a sixth water outlet pipe 15; the sixth water outlet pipe 15 is connected with the second water inlet pipe 5, the sixth water outlet pipe 15 is provided with an electromagnetic valve 23, and a three-way electromagnetic valve 24 on the secondary water supply pipe 19 is connected with a refrigerant water inlet of the spiral tube type heat exchanger 1 through a sixth water inlet pipe 9; a refrigerant water outlet of the spiral tube type heat exchanger 1 is connected with a seventh water outlet pipe 16; the fifth water outlet pipe 14 is connected with a water mixing pipe 31 through a three-way electromagnetic valve 24, and the water mixing pipe 31 is connected with a secondary water supply pipe 19; the water mixing pipe 31 is connected with a water replenishing pipe 32, the water replenishing pipe 32 is provided with a water replenishing pump 26, and the water replenishing pipe 32 is provided with two water replenishing pumps 26 connected in parallel; the spiral tube type heat exchanger 1 can perform primary heat exchange, and the temperature is reduced after heat exchange and then the heat exchange enters the second plate type heat exchanger 3 for heat exchange; the hot medium effluent after heat exchange through the spiral tube type heat exchanger 1 can be directly discharged or recycled through the refrigerant of the water mixing pipe 31 and the secondary water supply pipe 19, and the refrigerant is supplemented through two water supplementing pumps 26 connected in parallel; this embodiment adopts spiral tubular heat exchanger 1 and the series system of second plate heat exchanger 3, through spiral tubular heat exchanger 1's a heat transfer, has reduced the temperature of heat medium, avoids too high heat medium temperature to lead to plate heat exchanger's damage, has improved heat exchange efficiency.
Wherein, temperature sensor 21, pressure sensor 22, solenoid valve 23, three solenoid valve 24, circulating water pump 25, make-up water pump 26 is connected with PLC the control unit respectively (the PLC the control unit is not shown in the figure), wherein the PLC the control unit belongs to prior art, the PLC the control unit is used for gathering temperature sensor 21, pressure sensor 22 signal, and be used for controlling solenoid valve 23, three solenoid valve 24, circulating water pump 25, the opening and closing of make-up water pump 26, the PLC the control unit is to temperature sensor 21, pressure sensor 22, solenoid valve 23, three solenoid valve 24, circulating water pump 25, the control method of make-up water pump 26 belongs to prior art, be not the innovation point of this application, this embodiment is no longer repeated.
Wherein, the third water inlet pipe 6 and the fourth water inlet pipe 7 are respectively provided with an electromagnetic valve 23; and a temperature sensor 21 and a pressure sensor 22 are respectively arranged on the third water outlet pipe 12 and the fourth water outlet pipe 13.
The utility model discloses a first plate heat exchanger 2 and second plate heat exchanger 3 to first plate heat exchanger 2 and second plate heat exchanger 3 parallel connection, can use alone also can use simultaneously, have improved heat exchange efficiency, simultaneously the utility model discloses series connection spiral tube heat exchanger 1 has realized the effect of adjusting the temperature that gets into second plate heat exchanger 3 heat medium through spiral tube heat exchanger 1 when once heat transfer, avoids getting into the heat medium temperature in second plate heat exchanger 3 too high; the utility model has the advantages that the first water inlet pipe 4 and the second water inlet pipe 5 are provided with the blowoff valves 30, which can reduce the deposition of impurities in the first plate heat exchanger 2 and the second plate heat exchanger 3; the utility model discloses a temperature sensor 21, pressure sensor 22, solenoid valve 23, three-way solenoid valve 24, circulating water pump 25, moisturizing pump 26 are connected with the PLC control unit respectively, through the temperature and the pressure of the temperature of monitoring in the pipeline, can be better the circulation heat transfer in the control equipment; the utility model discloses a parallelly connected circulation heat transfer and the mode of series connection circulation heat transfer have improved the heat transfer ability to different heat sources on the one hand, have reduced equipment damage probability on the one hand, are more convenient for maintain.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel plate heat exchanger unit, includes spiral tubular heat exchanger and plate heat exchanger, its characterized in that: the plate heat exchanger comprises a first plate heat exchanger and a second plate heat exchanger; the heat medium water inlet of the first plate type heat exchanger is connected with the first water inlet pipe through a butterfly valve, and the heat medium water inlet of the second plate type heat exchanger is connected with the second water inlet pipe through a butterfly valve; the first water inlet pipe and the second water inlet pipe are connected in parallel and connected with a primary water supply pipe; the first water inlet pipe is sequentially connected with a temperature sensor, a pressure sensor, an electromagnetic valve and a blow-down valve in series; the second water inlet pipe is sequentially connected with a temperature sensor, a pressure sensor, an electromagnetic valve and a blow-down valve in series; the heat medium water outlet of the first plate type heat exchanger is connected with a first water outlet pipe through a butterfly valve, and the heat medium water outlet of the second plate type heat exchanger is connected with a second water outlet pipe through a butterfly valve; the first water outlet pipe and the second water outlet pipe are connected in parallel and connected with the primary water return pipe; a three-way electromagnetic valve is mounted on the primary water supply pipe, the three-way electromagnetic valve is connected with a heat medium water inlet of the spiral tube type heat exchanger through a fifth water inlet pipe, and a heat medium water outlet of the spiral tube type heat exchanger is respectively connected with a fifth water outlet pipe and a sixth water outlet pipe; the sixth water outlet pipe is connected with the second water inlet pipe, and the sixth water outlet pipe is provided with an electromagnetic valve; the refrigerant water inlet of the first plate heat exchanger is connected with a third water inlet pipe through a butterfly valve, the refrigerant water inlet of the second plate heat exchanger is connected with a fourth water inlet pipe through a butterfly valve, and the third water inlet pipe is connected with the fourth water inlet pipe in parallel and is connected with a secondary water supply pipe; the refrigerant water outlet of the first plate heat exchanger is connected with a third water outlet pipe through a butterfly valve, the refrigerant water outlet of the second plate heat exchanger is connected with a fourth water outlet pipe through a butterfly valve, and the third water outlet pipe and the fourth water outlet pipe are connected in parallel and connected with a secondary water return pipe; a safety valve, a circulating water pump and a three-way electromagnetic valve are sequentially arranged on the secondary water supply pipe; the three-way electromagnetic valve on the secondary water supply pipe is connected with a refrigerant water inlet of the spiral tube type heat exchanger through a sixth water inlet pipe; a refrigerant water outlet of the spiral tube type heat exchanger is connected with a seventh water outlet pipe; the fifth water outlet pipe is connected with a water mixing pipe through a three-way electromagnetic valve, and the water mixing pipe is connected with a secondary water supply pipe; the temperature sensor, the pressure sensor, the electromagnetic valve, the three-way electromagnetic valve and the circulating water pump are respectively connected with the PLC control unit.
2. The novel plate heat exchanger unit of claim 1, wherein: an exhaust valve is arranged between the electromagnetic valve on the first water inlet pipe and the drain valve; and an exhaust valve is arranged between the electromagnetic valve on the second water inlet pipe and the drain valve.
3. The novel plate heat exchanger unit of claim 1, wherein: and electromagnetic valves are respectively arranged on the third water inlet pipe and the fourth water inlet pipe.
4. The novel plate heat exchanger unit of claim 1, wherein: and the third water outlet pipe and the fourth water outlet pipe are respectively provided with a temperature sensor and a pressure sensor.
5. The novel plate heat exchanger unit of claim 1, wherein: the water mixing pipe is connected with a water replenishing pipe, and a water replenishing pump is installed on the water replenishing pipe.
6. The novel plate heat exchanger unit of claim 5, wherein: and two water replenishing pumps connected in parallel are installed on the water replenishing pipe.
7. The novel plate heat exchanger unit of claim 5, wherein: and the water replenishing pump is connected with the PLC control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120567574.2U CN214666275U (en) | 2021-03-19 | 2021-03-19 | Novel plate type heat exchanger unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120567574.2U CN214666275U (en) | 2021-03-19 | 2021-03-19 | Novel plate type heat exchanger unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214666275U true CN214666275U (en) | 2021-11-09 |
Family
ID=78454314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120567574.2U Active CN214666275U (en) | 2021-03-19 | 2021-03-19 | Novel plate type heat exchanger unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214666275U (en) |
-
2021
- 2021-03-19 CN CN202120567574.2U patent/CN214666275U/en active Active
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240418 Address after: 250300 East of Jinyu Village, Zhangxia Town, Changqing District, Jinan City, Shandong Province Patentee after: Shandong Jinnengda Heat Exchange Equipment Co.,Ltd. Country or region after: China Address before: 250000 Zhang Xia Zhen Jin Yu Cun, Changqing District, Jinan City, Shandong Province Patentee before: Jinan Zhangxia water supply equipment factory Country or region before: China |