CN215260616U - Refrigeration system - Google Patents
Refrigeration system Download PDFInfo
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- CN215260616U CN215260616U CN202120134005.9U CN202120134005U CN215260616U CN 215260616 U CN215260616 U CN 215260616U CN 202120134005 U CN202120134005 U CN 202120134005U CN 215260616 U CN215260616 U CN 215260616U
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- heat exchange
- refrigerant
- exchange tube
- condensed water
- condenser
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 129
- 239000003507 refrigerant Substances 0.000 claims abstract description 83
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Removal Of Water From Condensation And Defrosting (AREA)
Abstract
The utility model provides a refrigerating system, this refrigerating system include working medium circulation path, have arranged compressor, condenser, throttling arrangement and evaporimeter along the flow direction of refrigerant in proper order in working medium circulation path, wherein, in working medium circulation path, be provided with the cold volume recovery unit of comdenstion water between condenser and throttling arrangement to the cold volume recovery unit of comdenstion water structure does: the refrigerant flowing out of the condenser is cooled by the condensed water generated in the evaporator. The refrigeration system is high in energy efficiency, simple in structure, convenient to manufacture and low in cost.
Description
Technical Field
The utility model relates to a refrigerating system field, more specifically relates to a refrigerating system who carries out cold volume recovery to the comdenstion water.
Background
This section provides background information related to the present invention, which does not necessarily constitute prior art.
In the existing refrigeration system, the condensed water generated in the evaporator is generally treated by the following method: under the condition of less condensed water, the exhaust pipe of the compressor can be utilized to heat the condensed water so as to evaporate the condensed water; in case of more condensed water, the condensed water may be directly discharged by a drain pipe, dried by hot air passing through a condenser, or evaporated by an electric heating device.
On the other hand, in a medium temperature refrigerator, for example, there is generally a large amount of condensed water, the temperature of which is generally 5 to 10 ℃, while the temperature of the refrigerant discharged through the outlet of the condenser is generally 35 ℃, and therefore the cold energy of the condensed water is wasted. However, the existing methods for improving the energy efficiency of the refrigeration system usually focus on adopting a more efficient heat exchanger, a more efficient motor or a more efficient compressor, and the technology has a bottleneck or the cost is increased more.
Accordingly, there is a need for an improved refrigeration system that not only recycles the cooling capacity of the condensate, resulting in improved system energy efficiency, but also is simple and inexpensive to manufacture.
SUMMERY OF THE UTILITY MODEL
The general outline of the present invention is provided in this section, not a full scope of the invention or a full disclosure of all the features of the invention.
The utility model aims at providing a simple, reliable, low-cost refrigerating system, this refrigerating system adopt the cold volume recovery unit of comdenstion water, and the comdenstion water that produces in the evaporimeter in the utilization system cools off the refrigerant behind the condenser, not only does benefit to the subsequent processing of comdenstion water, and the cold volume of recycle comdenstion water moreover for the temperature of the refrigerant before the throttling arrangement further reduces. Therefore, the energy efficiency of the refrigerating system is improved, and the energy-saving effect is achieved.
According to the utility model discloses an aspect provides a refrigerating system, refrigerating system includes the working medium circulation route, has arranged compressor, condenser, throttling arrangement and evaporimeter along the flow direction of refrigerant in proper order in the working medium circulation route, wherein, in the working medium circulation route, is provided with the cold volume recovery unit of comdenstion water between condenser and throttling arrangement to the cold volume recovery unit of comdenstion water constructs to: the refrigerant flowing out of the condenser is cooled by the condensed water generated in the evaporator.
Optionally, at least a portion of the section of the refrigerant pipe located between the condenser and the throttling device constitutes a heat exchange pipe section, and the condensed water coldness recovery device is configured to cool the heat exchange pipe section to cool the refrigerant in the heat exchange pipe section.
Optionally, the condensate cold recovery device comprises a water tray adapted to receive condensate water, and the heat exchange tube section is arranged in the water tray to be in contact with the condensate water.
Optionally, the water-tray is of generally disc-like shape having a bottom wall and side walls, and the heat exchange tube segments are arranged in contact with or adjacent the bottom wall.
Optionally, a drainage channel adapted to collect condensate water is provided in the bottom of the drip tray and at least a portion of the heat exchange tube section is disposed in the drainage channel.
Optionally, the heat exchange tube section is fixed to the water collector through the buckle mode.
Optionally, the heat exchange tube section is arranged in a coiled form in the drip tray.
Optionally, the refrigeration system comprises a water-tray adapted to receive condensate water, and the condensate cold recovery device comprises a heat exchanger configured to receive condensate water from the water-tray to cool the heat exchange tube section.
Optionally, a condensate passage for flowing condensate water is included in the heat exchanger, and the heat exchange tube section is arranged in the heat exchanger to exchange heat between refrigerant in the heat exchange tube section and the condensate water in the condensate passage.
Optionally, wherein the heat exchanger is a plate heat exchanger or a double pipe heat exchanger.
Generally, according to the utility model discloses a refrigerating system brings following beneficial effect at least: according to the utility model discloses a refrigerating system passes through the comdenstion water cold volume recovery unit, has retrieved the cold volume of comdenstion water on the one hand, especially can play the effect to the preliminary treatment of comdenstion water under the condition that follow-up comdenstion water needs to be heated treatment; on the other hand, the refrigeration recovered from the condensed water is used to cool the refrigerant after passing through the condenser, and the temperature of the refrigerant before the expansion device can be further reduced, thereby improving the energy efficiency of the system. The condensate water cold energy recovery device is simple in structure, convenient to install and high in cost benefit.
Drawings
The foregoing and additional features and characteristics of the present invention will become more apparent from the following detailed description, taken with reference to the accompanying drawings, which are given by way of example only and which are not necessarily drawn to scale. Like reference numerals are used to indicate like parts in the accompanying drawings, in which:
figure 1 shows a schematic view of a refrigeration system according to a first embodiment of the present invention;
fig. 2 shows a schematic view of a condensate cold recovery device according to a first embodiment of the invention;
figure 3 shows a schematic view of a refrigeration system according to a second embodiment of the present invention; and
fig. 4 shows a schematic view of a condensate cold recovery device according to a second embodiment of the present invention.
Detailed Description
A preferred embodiment of the present invention will now be described in detail with reference to the accompanying fig. 1-4. The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. Corresponding components or parts are designated by the same reference numerals throughout the several views.
Fig. 1 shows a schematic diagram of a refrigeration system RS according to a first embodiment of the present invention, which comprises a working medium circulation path (arrows in the drawing indicate the flow direction of refrigerant) mainly formed by a compressor 1, a condenser 2, a throttling device 4 and an evaporator 5 connected in sequence by pipes. Further, a condensed water cold recovery device is provided in a path between the condenser 2 and the expansion device 4. That is, with the refrigeration system according to the first embodiment of the present invention, the compressor 1, the condenser 2, the condensed water cold recovery device, the throttle device 4, and the evaporator 5 are arranged in the working medium circulation path in this order along the flow direction of the refrigerant. The throttle device 4 may be configured as a needle valve, a ball valve, a thermostatic expansion valve, or the like. The condenser 2 and the evaporator 5 are usually configured as a refrigerant-air heat exchanger having a refrigerant channel for the passage of refrigerant in the working medium circulation path and a medium channel for the passage of a medium (air) outside the working medium circulation path.
In the first embodiment according to the present invention, the condensate cooling recovery device comprises a water pan 6, the water pan 6 being arranged below the evaporator 5 for receiving condensate that is produced in the evaporator 5 as a result of the medium (air) being cooled by the refrigerant. Referring to fig. 2, the drip tray 6 is substantially disc-shaped and includes a bottom wall 6a and a side wall 6b surrounding the bottom wall 6 a. A water outlet c for discharging condensed water is further provided at the center of the bottom wall 6a of the drip tray 6. The bottom wall 6a of the drip tray 6 may be horizontal as a whole, or may be inclined upward from the drain opening c to the side wall 6b of the drip tray 6, so as to increase the capacity of the drip tray 6 and guide the condensed water to flow out from the drain opening c. In the refrigerant pipe RP between the condenser 2 and the throttle 4, at least a part of the pipe section in the flow direction of the refrigerant constitutes a heat exchange pipe section HS which is arranged to abut against the inner surface of the bottom wall 6b of the drip tray 6 so as to be at least partially in contact with, and even entirely immersed in, the condensate water in the drip tray 6. Thus, the heat of the refrigerant in the heat exchange tube section HS can be taken away by the condensed water in the drip tray 6 when the condensed water flows over the outer surface of the heat exchange tube section HS. Those skilled in the art will appreciate that the heat exchange tube section HS may be arranged to contact the bottom wall 6b of the drip tray 6, thereby allowing the heat exchange tube section HS to be securely fixed to the drip tray 6 while maximising contact of the heat exchange tube section HS with condensate. Alternatively, the heat exchange tube section HS may also be arranged close to the bottom wall 6b of the drip tray 6, thereby avoiding the heat exchange tube section contacting the bottom wall 6b to affect the cooling effect while ensuring that the contact of the heat exchange tube section HS with the condensate water is as large as possible.
In order to increase as much as possible the cooling effect of the condensed water on the refrigerant in the heat exchange tube section HS, which may be the entire refrigerant tube RP between the condenser 2 and the throttle 4, the length of the heat exchange tube section HS is in the range of 0.5m to 5 m. The heat exchange tube section HS may be coiled in an S-shape, U-shape, spiral shape or other suitable shape around the bottom of the drip tray 6 to further increase the area for heat exchange with the condensate in the drip tray 5. In addition, particularly when the bottom wall 6b of the drip tray 6 is shaped so as to be gradually inclined upward from the drain opening c to the side wall 6a of the drip tray 6, the heat exchange tube sections HS are preferentially arranged in the vicinity of the drain opening c, thereby ensuring sufficient cooling of the refrigerant in the heat exchange tube sections HS by the condensed water.
In addition, a drainage groove (not shown) suitable for collecting the condensed water can be arranged on the inner surface of the bottom wall 6b of the water pan 6. The overall shape of the flow-guiding slot may be S-shaped, U-shaped, spiral, etc., with at least a portion of the heat exchange tube section HS disposed in the flow-guiding slot. Preferably, the cross section of the flow guide groove is arc-shaped, and the radius of the flow guide groove is equal to or larger than the outer radius of the heat exchange pipe section HS, so that the heat exchange pipe section HS is conveniently fixed in the flow guide groove. Due to the arrangement of the drainage grooves, condensed water can be more effectively collected to the position of the heat exchange tube section HS, so that the refrigerant in the heat exchange tube section HS is fully cooled.
It will be appreciated by those skilled in the art that the heat exchange tube sections HS may be secured to the drip tray 6 in any suitable manner, such as by snaps or the like, so long as the heat exchange tube sections HS are brought into contact with or close proximity to the bottom of the drip tray 6.
An operation of the refrigeration system according to the first embodiment of the present invention will be described with reference to fig. 1 and 2. In the working medium circulation path, high-temperature and high-pressure refrigerant gas discharged from the compressor 1 enters the condenser 2 through a pipeline, releases heat to air or water in a medium channel of the condenser 2 in the condenser 2, and then is discharged from a refrigerant outlet of the condenser 2. The refrigerant discharged from the refrigerant outlet of the condenser 2 is changed from a gaseous state to a liquid state as compared with the refrigerant discharged from the compressor 1. Then, the refrigerant liquid enters the refrigerant pipe RP, and since the heat exchange tube section HS of the refrigerant pipe RP is arranged in the water receiver 6 and is in contact with the condensed water in the water receiver 6, the refrigerant liquid can exchange heat with the condensed water in the water receiver 6 through the tube wall of the heat exchange tube section HS, thereby reducing the temperature of the refrigerant liquid. The cooled refrigerant liquid flows out of the heat exchange tube section HS and enters the throttling device 4, and is further cooled and depressurized by the throttling device 4 to be converted into low-temperature and low-pressure refrigerant liquid. Subsequently, the low-temperature and low-pressure refrigerant liquid enters the evaporator 5, absorbs heat in the evaporator 5 to the air in the medium passage of the evaporator 5, is gasified into a refrigerant gas, and then enters the compressor 1. The air is cooled in the evaporator 5, thereby generating condensed water, which is discharged and collected in the drip tray 6.
Taking the medium temperature refrigerator as an example, in the medium temperature refrigerator, a large amount of condensed water is generally generated in the evaporator 5 and collected in the water receiving tray 6, and the temperature of the condensed water is generally 5 to 10 ℃. And the temperature of the liquid refrigerant discharged from the refrigerant outlet of the condenser 2 is usually 35 c or more. Under the condition that the heat exchange pipe section HS is not cooled by the condensed water in the water receiving tray 6, the cold energy of the condensed water is wasted. After the heat exchange tube section HS is cooled by the condensed water in the water receiving tray 6, the temperature of the liquid refrigerant discharged from the refrigerant outlet of the condenser 2 is remarkably reduced in the heat exchange tube section HS, and therefore the energy efficiency of the system is improved. Experiments show that the energy efficiency of the refrigerating system provided with the condensate water cold energy recovery device is improved to 2.13W/W from 2.04W/W of the refrigerating system which is not provided with the condensate water cold energy recovery device.
According to the utility model discloses a refrigerating system of first embodiment utilizes the condensate water cooling that produces in the evaporimeter to follow the refrigerant outlet exhaust refrigerant of condenser on the one hand to improve the system energy efficiency, on the other hand has also handled the condensate water. Particularly, in the case of evaporating the condensed water, the condensed water can be preheated by the heat exchange tube section, so that the energy consumption of the system is further reduced. The heat exchange pipe section and the water pan are simple in arrangement structure, convenient to install and low in cost, and the design is reliable in treating condensed water of the refrigeration system and improving the energy efficiency of the system.
Fig. 3 and 4 show a refrigeration system and a condensate cooling capacity recovery apparatus thereof according to a second embodiment of the present invention.
Similar to the first embodiment of the present invention, the refrigeration system according to the second embodiment of the present invention includes a working medium circulation path. Specifically, the working medium circulation path is mainly formed by connecting a compressor 1, a condenser 2, a condensate water cold recovery device, a throttling device 4 and an evaporator 5 sequentially through pipelines. That is, the compressor 1, the condenser 2, the condensed water coldness recovery device, the throttle device 4, and the evaporator 5 are sequentially arranged in the working medium circulation path along the flow direction of the refrigerant. The construction, arrangement, connection, and operation of each device such as the compressor 1 in the working medium circulation path are similar to those of the first embodiment, and a description thereof will not be repeated. Unlike the first embodiment, the condensed-water coldness recovery apparatus in the second embodiment includes the heat exchanger 3, and the heat exchanger 3 cools at least a part of the refrigerant pipe RP, i.e., the heat exchange pipe section HS, located between the condenser 2 and the throttle apparatus 4. It should be noted here that the heat exchange section HS is not necessarily a pipe in a narrow sense, but may be a passage for refrigerant flow.
Referring to fig. 4, similar to the first embodiment, the refrigeration system comprises a drip tray 6' adapted to receive the condensation water produced in the evaporator 5. The drip tray 6' is substantially shaped like a tray and includes a bottom wall 6' b and a side wall 6' a surrounding the bottom wall 6' b, and a drain opening c ' for draining condensed water is further provided at the center of the bottom wall 6' b of the drip tray 6 '. The heat exchanger 3 may be arranged at the outlet c 'of the water tray 6' of the evaporator 5. The heat exchanger 3 comprises a condensate passage, and the heat exchanger 3 receives condensate from the drip tray 6' and causes the condensate to flow through the condensate passage. The heat exchange tube section HS is arranged in the heat exchanger 3 so that the heat exchange tube section HS is cooled with the condensate water. The condensed water channel of the heat exchanger 3 has a water side inlet 31 and a water side outlet 32, the water side inlet 31 is connected to the water outlet c 'of the water pan 6', and the condensed water collected in the water pan 6 'enters the condensed water channel of the heat exchanger 3 from the water side inlet 31 via the water outlet c' of the water pan and is then discharged through the water side outlet 32. The heat exchange tube section HS arranged in the heat exchanger 3 has a refrigerant side inlet 33 and a refrigerant side outlet 34, the refrigerant side inlet 33 is directly connected or connected by a pipe to the refrigerant outlet of the condenser 2, the refrigerant side outlet 34 is directly connected or connected by a pipe to the refrigerant inlet of the throttle device 4, the refrigerant discharged from the refrigerant outlet of the condenser 2 enters the heat exchange tube section HS arranged in the heat exchanger 3 via the refrigerant side inlet 33, and then is discharged from the refrigerant side outlet 34 and then enters the throttle device 4. In order to improve the heat exchange efficiency of the heat exchanger 3, it is preferable that the condensed water and the refrigerant have different flow directions in the heat exchanger 3'.
Similarly to the flow and operating state of the refrigerant in the first embodiment, in the working medium circulation path, the refrigerant liquid discharged from the refrigerant outlet of the condenser 2 enters the heat exchange tube section HS arranged in the heat exchanger 3, and the condensed water in the water pan 6' flows through the condensed water passage of the heat exchanger 3, whereby the refrigerant liquid exchanges heat with the condensed water in the heat exchanger 3, thereby lowering the temperature of the refrigerant liquid. The cooled refrigerant liquid is discharged from the heat exchanger 3, enters the throttling device 4, is further cooled and depressurized by the throttling device 4, and is converted into low-temperature and low-pressure refrigerant liquid. Subsequently, the low-temperature and low-pressure refrigerant liquid enters the evaporator 5, absorbs heat in the evaporator 5 to the air in the medium passage of the evaporator 5, is gasified into a refrigerant gas, and then enters the compressor 1. While the air is cooled in the evaporator 5, whereby condensation water is produced, which is discharged and collected in the drip tray 6'.
In a second embodiment according to the present invention, the heat exchanger 3 is a plate heat exchanger or a double pipe heat exchanger. When the heat exchanger 3 is configured as a double pipe heat exchanger, it is possible to simply surround a sleeve around the heat exchange pipe section HS in the refrigerant pipe RP without changing the original refrigerant pipe RP between the condenser 2 and the throttling device 4, so that the condensed water flows in the annular space between the sleeve and the heat exchange pipe section HS to achieve heat exchange between the condensed water and the refrigerant. The structure is simpler and the manufacture is more convenient.
According to the refrigeration system of the second embodiment of the present invention, on the one hand, similar to the first embodiment, this refrigeration system handles the condensed water. Under the condition that the condensed water needs to be subjected to evaporation treatment, the heat exchanger 3 is used for preheating the condensed water, so that the evaporation efficiency of the condensed water can be improved; when the condensed water is directly discharged without being subjected to evaporation treatment, the heat exchanger 3 recovers the cooling energy of the condensed water. On the other hand, the refrigerating system not only utilizes the cold energy of the condensed water in the water receiving tray to cool the liquid refrigerant discharged from the refrigerant outlet of the condenser so as to improve the energy efficiency of the system, but also adopts the heat exchanger 3 to further improve the heat exchange efficiency between the condensed water and the refrigerant, so that the refrigerant can be cooled more fully. The refrigeration system has the advantages of simple structure, low manufacturing cost and obvious energy efficiency improvement.
The refrigeration system according to a preferred embodiment of the present invention has been described above with reference to the specific embodiments. It will be understood that the above description is intended to be illustrative and not restrictive, and that various changes and modifications may be suggested to one skilled in the art in view of the above description without departing from the scope of the invention. Such variations and modifications are also intended to be included within the scope of the present invention.
Claims (7)
1. A refrigeration system includes a working medium circulation path in which a compressor, a condenser, a throttle device, and an evaporator are sequentially arranged along a flow direction of a refrigerant,
characterized in that a condensed water cold energy recovery device is arranged between the condenser and the throttling device in the working medium circulation path, and
the condensed water cold energy recovery device is structured as follows: cooling the refrigerant flowing out of the condenser with the condensed water generated in the evaporator,
at least a portion of a refrigerant tube located between the condenser and the throttling device constitutes a heat exchange tube section, the condensed water coldness recovery device being configured to cool the heat exchange tube section to cool refrigerant in the heat exchange tube section,
the condensed water cold recovery device comprises a water pan suitable for receiving condensed water, and the heat exchange tube section is arranged in the water pan to be in contact with the condensed water,
a drainage trough adapted to collect condensate water is provided in the bottom of the drip tray and at least a portion of the heat exchange tube segments are disposed in the drainage trough.
2. A refrigeration system as recited in claim 1 wherein the drip tray is generally disc-shaped having a bottom wall and side walls and the heat exchange tube segments are disposed in contact with or adjacent the bottom wall.
3. A refrigeration system as recited in claim 1 or 2 wherein the heat exchange tube section is secured to the drip tray by snap-fit.
4. A refrigeration system as recited in claim 1 or 2 wherein the heat exchange tube section is arranged in a coiled form in the drip tray.
5. A refrigeration system includes a working medium circulation path in which a compressor, a condenser, a throttle device, and an evaporator are sequentially arranged along a flow direction of a refrigerant,
characterized in that a condensed water cold energy recovery device is arranged between the condenser and the throttling device in the working medium circulation path, and
the condensed water cold energy recovery device is structured as follows: cooling the refrigerant flowing out of the condenser with the condensed water generated in the evaporator,
at least a portion of a refrigerant tube located between the condenser and the throttling device constitutes a heat exchange tube section, the condensed water coldness recovery device being configured to cool the heat exchange tube section to cool refrigerant in the heat exchange tube section,
the refrigeration system includes a water pan adapted to receive condensate water, and the condensate water cold recovery device includes a heat exchanger configured to receive condensate water from the water pan to cool the heat exchange tube section.
6. A refrigeration system as set forth in claim 5 wherein a condensate passage is included in said heat exchanger for flowing condensate and said heat exchange tube sections are disposed in said heat exchanger for exchanging heat from refrigerant in said heat exchange tube sections with condensate in said condensate passage.
7. A refrigeration system according to claim 5 or 6, wherein the heat exchanger is a plate heat exchanger or a double pipe heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120134005.9U CN215260616U (en) | 2021-01-18 | 2021-01-18 | Refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120134005.9U CN215260616U (en) | 2021-01-18 | 2021-01-18 | Refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215260616U true CN215260616U (en) | 2021-12-21 |
Family
ID=79498794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120134005.9U Active CN215260616U (en) | 2021-01-18 | 2021-01-18 | Refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215260616U (en) |
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2021
- 2021-01-18 CN CN202120134005.9U patent/CN215260616U/en active Active
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Address after: No. 69 Suhong West Road, Industrial Park, Suzhou City, Jiangsu Province, 215101 Patentee after: Gulun Environmental Technology (Suzhou) Co.,Ltd. Country or region after: China Address before: Emerson R & D and overall solution center, 35 Suhong West Road, Suzhou Industrial Park, Jiangsu Province, 215021 Patentee before: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) Co.,Ltd. Country or region before: China |
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