CN112484346A - Refrigerant distributor and dry evaporator with built-in refrigerant distributor - Google Patents
Refrigerant distributor and dry evaporator with built-in refrigerant distributor Download PDFInfo
- Publication number
- CN112484346A CN112484346A CN202011548867.2A CN202011548867A CN112484346A CN 112484346 A CN112484346 A CN 112484346A CN 202011548867 A CN202011548867 A CN 202011548867A CN 112484346 A CN112484346 A CN 112484346A
- Authority
- CN
- China
- Prior art keywords
- orifice plate
- distributor
- refrigerant
- heat exchange
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 55
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000013517 stratification Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
Abstract
The invention discloses a refrigerant distributor and a dry evaporator with the built-in refrigerant distributor, wherein the refrigerant distributor comprises a distributor main body, a plurality of spray holes for dispersing gas-liquid mixed preparation entering the interior of the evaporator are arranged on the surface of the distributor main body, and the refrigerant distributor is built in the dry evaporator. Through the mode, the refrigerant distributor and the dry evaporator with the built-in refrigerant distributor can uniformly disperse the gas-liquid mixed refrigerant into all the spaces inside the tube box assembly, ensure that each heat exchange copper tube can obtain the liquid refrigerant, and ensure that the effective utilization rate of the heat exchange area is maximized, thereby greatly improving the refrigerating capacity and the unit energy efficiency.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a refrigerant distributor and a dry evaporator with the built-in refrigerant distributor.
Background
After the gas-liquid mixed refrigerant enters the tube box assembly of the dry evaporator, the flow rate of the refrigerant is rapidly reduced due to the fact that the space is wide, the liquid refrigerant is mainly distributed at the middle lower part in the tube box under the action of gravity, the gaseous refrigerant is distributed at the upper part in the tube box, and as a result, no liquid refrigerant enters the inside of the evaporation tube at the upper part in the tube box, so that the effect is lost, the heat exchange area cannot be fully utilized, the evaporation temperature is reduced, and the refrigerating capacity is reduced.
Disclosure of Invention
The invention mainly solves the technical problem of providing a refrigerant distributor and a dry evaporator with the built-in refrigerant distributor, which can uniformly disperse a gas-liquid mixed refrigerant into all spaces inside a tube box assembly, ensure that each heat exchange copper tube can obtain the liquid refrigerant, and ensure that the effective utilization rate of a heat exchange area is maximized, thereby greatly improving the refrigerating capacity and the unit energy efficiency.
In order to solve the technical problems, the invention adopts a technical scheme that: a refrigerant distributor is provided, which is positioned at a refrigerant inlet in a tube box and comprises a distributor main body, wherein a plurality of spray holes for dispersing a gas-liquid mixture preparation entering an evaporator are arranged on the surface of the distributor main body.
In a preferred embodiment of the invention, the cavity part in the channel box is divided into a plurality of liquid inlet distribution areas for distributing the gas-liquid mixed preparation, and each liquid inlet distribution area is internally provided with a distributor main body to form the multi-system refrigerant distributor.
In a preferred embodiment of the invention, the distributor body is trapezoidal or triangular in shape and has a shape and dimensions adapted to those of the corresponding distribution area, the wide end of the distributor body being located at the inlet line of the refrigerant.
In a preferred embodiment of the present invention, the dispenser body is integrally formed by bending a metal plate, and includes a first orifice plate for dispersing the gas-liquid mixture sprayed from the front side of the liquid inlet, and a second orifice plate for dispersing the gas-liquid mixture sprayed from the periphery of the liquid inlet, and the joint corner seam between the second orifice plate and the first orifice plate is welded and sealed.
In a preferred embodiment of the present invention, the first orifice plate is arranged in a trapezoidal shape, the number of injection holes on the first orifice plate gradually increases from the narrow end portion toward the wide end portion, and each injection hole on the first orifice plate extends from the top surface of the first orifice plate to the bottom surface of the first orifice plate.
In a preferred embodiment of the present invention, the second orifice plate is disposed along a periphery of the first orifice plate, the orifices of the second orifice plate are evenly distributed along a length of the second orifice plate, and each orifice of the second orifice plate extends from a top surface of the second orifice plate to a bottom surface of the second orifice plate.
In a preferred embodiment of the invention, the outlet directions of the injection holes on the first orifice plate and the second orifice plate correspond to the inlets of the heat exchange copper pipes in the evaporator.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a dry evaporator having the above-mentioned distributor main body built therein,
the distributor also comprises a shell, a tube box, a tube plate, a heat exchange copper tube, a baffle plate and a flat cover, wherein the tube box is fixedly arranged at the refrigerant inlet end of the shell, the tube plate is positioned in the shell and used for fixing the heat exchange copper tube, the distributor main body is arranged in the distribution area of the tube box, the flat cover is arranged at the tail end of the shell,
the shell is internally provided with baffle plates and heat exchange copper pipes penetrating through the baffle plates, the adjacent heat exchange copper pipes are arranged in parallel, the baffle plates are arranged in a disc shape, the surfaces of the baffle plates are provided with mounting holes of the heat exchange copper pipes, and the baffle plates inside the shell are arranged at intervals in a vertically staggered mode.
In a preferred embodiment of the invention, the end part of the heat exchange copper pipe is fixed on the pipe plate in an expansion joint mode, and the liquid inlet of the heat exchange copper pipe is positioned at the liquid outlet of the injection holes of the first orifice plate and the second orifice plate on the distributor body.
The invention has the beneficial effects that: the refrigerant distributor and the dry evaporator with the built-in refrigerant distributor can uniformly disperse the gas-liquid mixed refrigerant into all the spaces in the tube box assembly, ensure that each heat exchange copper tube can obtain the liquid refrigerant, and ensure that the effective utilization rate of the heat exchange area is maximized, thereby greatly improving the refrigerating capacity and the unit energy efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a preferred embodiment of a dry evaporator of the present invention;
FIG. 2 is a schematic view of the construction of the tube and box assembly in the dry evaporator of the present invention;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a side view of FIG. 2;
FIG. 5 is a schematic diagram of a preferred embodiment of the refrigerant distributor of the present invention;
FIG. 6 is a schematic structural view of another preferred embodiment of the refrigerant distributor of the present invention;
the parts in the drawings are numbered as follows: 100. the heat exchanger comprises a header, 110, a distribution area, 200, a refrigerant distributor, 210, a distributor body, 211, a first orifice plate, 212, a second orifice plate, 213, an injection hole, 300, a shell, 400, a heat exchange copper pipe, 500, a baffle plate, 600, a flat cover, 700 and a tube plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, an embodiment of the present invention includes:
example one
A refrigerant distributor, which is located at a refrigerant inlet in a header 100, includes a distributor body 210, and a plurality of spray holes 213, which disperse a gas-liquid mixture preparation introduced into an inside of an evaporator, are arranged on a surface of the distributor body 210.
The cavity part in the channel box 100 is partitioned to form a plurality of liquid inlet distribution areas 110 for distributing gas-liquid mixed preparation, and a distributor main body 210 is arranged in each liquid inlet distribution area 110 to form a multi-system refrigerant distributor.
In practical application, the refrigerant distributor can be 1 system, 2 systems, 3 systems, 4 systems, 5 systems, 6 systems and the like, and is set according to practical application conditions to ensure the dispersibility of the gas-liquid mixed preparation.
The dispenser body 210 is in a trapezoidal configuration, and may be a regular trapezoidal structure or an inclined trapezoidal structure, and the size and dimension of the trapezoidal structure are adapted to the shape and size of the corresponding dispensing region 110.
The dispenser body 210 is triangularly shaped with a triangular configuration sized and dimensioned to fit the shape and size of the corresponding dispensing region 110.
The dispenser main body 210 having the trapezoidal structure can prevent the gas-liquid mixed preparation from being accumulated in a local area, and the gas-liquid mixed preparation is sufficiently and uniformly dispersed.
The distributor body 210 is formed integrally by bending after being blanked by sheet metal laser, and comprises a first pore plate 211 for dispersing the gas-liquid mixed preparation sprayed from the front side of the liquid inlet and a second pore plate 212 for dispersing the gas-liquid mixed preparation sprayed from the periphery of the liquid inlet.
The second orifice plate 212 is bent along the periphery of the first orifice plate 211, and the connecting corner seam between the second orifice plate 212 and the first orifice plate 211 is welded and sealed.
Further, the first orifice plate 211 is provided in a trapezoidal shape, the number of the injection holes 213 on the first orifice plate 211 gradually increases from the narrow end portion toward the wide end portion, and each of the injection holes 213 on the first orifice plate 211 extends from the top surface of the first orifice plate 211 to the bottom surface of the first orifice plate 211.
The injection holes 213 on the second orifice plate 212 are uniformly distributed along the length direction of the second orifice plate 212, and each injection hole on the second orifice plate 212 extends from the top surface of the second orifice plate 212 to the bottom surface of the second orifice plate 212.
The wide end of the distributor body 210 having a trapezoidal structure is located at the inlet pipeline of the refrigerant, so that sufficient spraying and dispersion of the gas-liquid mixture preparation can be ensured.
The outlet direction of the injection hole 213 on the first orifice plate 211 and the second orifice plate 212 faces to the inlet of each heat exchange copper pipe 400 in the evaporator, so that the gas-liquid mixed preparation can fully flow into the heat exchange copper pipes, and the loss of the gas-liquid mixed preparation is reduced.
After entering the tube box 100 at a high speed, the gas-liquid mixed refrigerant passes through the distributor body 210, the refrigerant is uniformly mixed and maintains the optimal flow rate, no gas-liquid stratification phenomenon is generated, the refrigerant is uniformly dispersed into all the spaces inside the tube box 100 through the injection holes 13, and each heat exchange copper tube 400 can obtain the liquid refrigerant, so that the refrigerating capacity is improved, and the unit energy efficiency is improved.
Example two
A dry evaporator, in which a refrigerant distributor 200 according to one embodiment is built, includes a distributor body 210,
the heat exchanger comprises a shell 300, a tube box 100, a tube plate 700, a heat exchange copper tube 400, a baffle plate 500 and a flat cover 600, wherein the tube box 100 is fixedly arranged at the refrigerant inlet end of the shell 300, the tube plate 700 is positioned in the shell 600 and used for fixing the heat exchange copper tube 400, a distributor main body 210 is arranged in a distribution area 110 of the tube box, the flat cover 600 is arranged at the tail end of the shell 300,
the shell 300 is also internally provided with a baffle plate 500 and a heat exchange copper pipe 400 penetrating through the baffle plate 500, the adjacent heat exchange copper pipes 400 are arranged in parallel, the baffle plate 500 is arranged in a disc shape, the surface of the baffle plate 500 is provided with mounting holes for the heat exchange copper pipes 400, and the baffle plate 500 inside the shell 300 is arranged in a vertically staggered manner.
The end of the heat exchange copper pipe 400 is fixed on the tube plate 700 in an expansion joint mode, and the liquid inlet of the heat exchange copper pipe 400 is located at the liquid outlet of the injection hole 213 of the first orifice plate 211 and the second orifice plate 212 on the distributor body 210.
The working principle of the dry evaporator is as follows:
the refrigerant flows in a gas-liquid mixed state before entering the tube box 100, a gas-liquid stratification phenomenon exists, the gas-liquid mixed state refrigerant flows into the tube box 100 on the shell at a high speed and then passes through the distributor main body 210,
the gas-liquid mixed refrigerant is uniformly mixed and maintains an optimal flow rate after passing through the injection hole 213 of the surface of the distributor body 210, no gas-liquid stratification occurs,
the gas-liquid mixed refrigerant is uniformly dispersed into all the spaces inside the tube box 100 through the injection holes 213, and each heat exchange copper tube 400 can obtain the liquid refrigerant, so that the refrigerating capacity is improved, and the unit energy efficiency is improved.
The refrigerant distributor and the dry evaporator with the built-in refrigerant distributor have the advantages that:
can be with all spaces of gas-liquid mixture state refrigerant homodisperse to pipe case subassembly inside, ensure that each heat transfer copper pipe can both obtain liquid refrigerant, ensure heat transfer area's the maximize of effective use rate to promote the refrigerating output greatly, improve the unit efficiency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A refrigerant distributor is positioned at a refrigerant inlet in a tube box and is characterized by comprising a distributor main body, wherein a plurality of spray holes for dispersing a gas-liquid mixed preparation entering an evaporator are arranged on the surface of the distributor main body.
2. The refrigerant distributor according to claim 1, wherein the cavity portion in the header is partitioned to form a plurality of feed distribution regions for distributing the liquid-vapor mixture, each feed distribution region having a distributor body disposed therein to form a multi-system refrigerant distributor.
3. A refrigerant distributor according to claim 2, wherein the distributor body is trapezoidal or triangular in shape and has a size adapted to the shape and size of the corresponding distribution area, and the wide end of the distributor body is located at the refrigerant inlet line.
4. The refrigerant distributor according to claim 3, wherein the distributor body is integrally formed by bending a metal plate, and includes a first orifice plate for dispersing the gas-liquid mixture sprayed from the front side of the liquid inlet and a second orifice plate for dispersing the gas-liquid mixture sprayed from the periphery of the liquid inlet, and the joint corner seam between the second orifice plate and the first orifice plate is welded and sealed.
5. The refrigerant distributor according to claim 4, wherein the first orifice plate is provided in a trapezoidal shape, the number of the injection holes in the first orifice plate gradually increases from the narrow end portion toward the wide end portion, and each of the injection holes in the first orifice plate extends from a top surface of the first orifice plate to a bottom surface of the first orifice plate.
6. The refrigerant distributor according to claim 5, wherein the second orifice plate is disposed along a circumference of the first orifice plate, the spray holes of the second orifice plate are uniformly distributed along a length direction of the second orifice plate, and each of the spray holes of the second orifice plate extends from a top surface of the second orifice plate to a bottom surface of the second orifice plate.
7. A refrigerant distributor according to claim 6 wherein the outlet direction of the spray holes on the first orifice plate and the second orifice plate corresponds to the inlet of each heat exchange copper tube in the evaporator.
8. A dry evaporator comprising a refrigerant distributor according to any one of claims 1 to 7,
the distributor also comprises a shell, a tube box, a tube plate, a heat exchange copper tube, a baffle plate and a flat cover, wherein the tube box is fixedly arranged at the refrigerant inlet end of the shell, the tube plate is positioned in the shell and used for fixing the heat exchange copper tube, the distributor main body is arranged in the distribution area of the tube box, the flat cover is arranged at the tail end of the shell,
the shell is internally provided with baffle plates and heat exchange copper pipes penetrating through the baffle plates, the adjacent heat exchange copper pipes are arranged in parallel, the baffle plates are arranged in a disc shape, the surfaces of the baffle plates are provided with mounting holes of the heat exchange copper pipes, and the baffle plates inside the shell are arranged at intervals in a vertically staggered mode.
9. A dry evaporator as recited in claim 8 wherein the ends of the heat exchange copper tubes are secured to the tube sheet in an expanded configuration, and the liquid inlets of the heat exchange copper tubes are located at the liquid outlets of the first and second orifice plates of the distributor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548867.2A CN112484346A (en) | 2020-12-24 | 2020-12-24 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548867.2A CN112484346A (en) | 2020-12-24 | 2020-12-24 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112484346A true CN112484346A (en) | 2021-03-12 |
Family
ID=74915554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011548867.2A Pending CN112484346A (en) | 2020-12-24 | 2020-12-24 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112484346A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022022144A1 (en) * | 2020-07-29 | 2022-02-03 | 约克广州空调冷冻设备有限公司 | Evaporator |
| CN114517993A (en) * | 2022-02-09 | 2022-05-20 | 青岛海尔空调电子有限公司 | Horizontal shell-and-tube heat exchanger and heat exchange unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109593A (en) * | 2006-07-19 | 2008-01-23 | 乐金电子(天津)电器有限公司 | Coolant distributor for altering the number of indoor set driven by outdoor set |
| CN201297803Y (en) * | 2008-10-07 | 2009-08-26 | 上海环球制冷设备有限公司 | Drip-leaching falling film type evaporator |
| EP2242963A1 (en) * | 2008-01-17 | 2010-10-27 | Carrier Corporation | Heat exchanger including multiple tube distributor |
| CN101922888A (en) * | 2009-05-27 | 2010-12-22 | 江森自控楼宇设备科技(无锡)有限公司 | Refrigerant distributer for evaporator |
| CN203881005U (en) * | 2012-12-21 | 2014-10-15 | 特灵国际有限公司 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
| CN106482550A (en) * | 2016-10-21 | 2017-03-08 | 珠海格力电器股份有限公司 | Channel structure, shell and tube exchanger and air-conditioner |
| CN214406568U (en) * | 2020-12-24 | 2021-10-15 | 无锡市同力空调设备有限公司 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
-
2020
- 2020-12-24 CN CN202011548867.2A patent/CN112484346A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109593A (en) * | 2006-07-19 | 2008-01-23 | 乐金电子(天津)电器有限公司 | Coolant distributor for altering the number of indoor set driven by outdoor set |
| EP2242963A1 (en) * | 2008-01-17 | 2010-10-27 | Carrier Corporation | Heat exchanger including multiple tube distributor |
| CN201297803Y (en) * | 2008-10-07 | 2009-08-26 | 上海环球制冷设备有限公司 | Drip-leaching falling film type evaporator |
| CN101922888A (en) * | 2009-05-27 | 2010-12-22 | 江森自控楼宇设备科技(无锡)有限公司 | Refrigerant distributer for evaporator |
| CN203881005U (en) * | 2012-12-21 | 2014-10-15 | 特灵国际有限公司 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
| CN106482550A (en) * | 2016-10-21 | 2017-03-08 | 珠海格力电器股份有限公司 | Channel structure, shell and tube exchanger and air-conditioner |
| CN214406568U (en) * | 2020-12-24 | 2021-10-15 | 无锡市同力空调设备有限公司 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022022144A1 (en) * | 2020-07-29 | 2022-02-03 | 约克广州空调冷冻设备有限公司 | Evaporator |
| CN114517993A (en) * | 2022-02-09 | 2022-05-20 | 青岛海尔空调电子有限公司 | Horizontal shell-and-tube heat exchanger and heat exchange unit |
| CN114517993B (en) * | 2022-02-09 | 2024-02-20 | 青岛海尔空调电子有限公司 | Horizontal shell-and-tube heat exchanger and heat exchange unit |
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Address after: 214000 Yuqi Street Yurong village, Huishan District, Wuxi City, Jiangsu Province Applicant after: Jiangsu Tongli Air Conditioning Equipment Co.,Ltd. Address before: 214183 Yuqi Street Yurong village, Huishan District, Wuxi City, Jiangsu Province Applicant before: WUXI TONGLI AIR-CONDITIONING EQUIPMENT Co.,Ltd. |