CN109210833B - Compression type heat exchanger assembly for refrigeration - Google Patents
Compression type heat exchanger assembly for refrigeration Download PDFInfo
- Publication number
- CN109210833B CN109210833B CN201811212077.XA CN201811212077A CN109210833B CN 109210833 B CN109210833 B CN 109210833B CN 201811212077 A CN201811212077 A CN 201811212077A CN 109210833 B CN109210833 B CN 109210833B
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- cavity
- cooling
- tube group
- cooling tube
- wall
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Classifications
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- 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
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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
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
- F28D11/04—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
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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
- F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a compression type heat exchanger component for refrigeration, which comprises a cooling cylinder, a cooling pipe group and a supercharging device, wherein the cooling pipe group is arranged in the cooling cylinder, pipe group joints are arranged on two sides of the cooling pipe group, a converging cavity is arranged on the left side of the pipe group joint arranged at the left end of the cooling pipe group, a diverging cavity is arranged on the right side of the pipe group joint arranged at the right end of the cooling pipe group, the supercharging cavity is arranged on the right side of the inside of the supercharging device, a pressure regulating mechanism is arranged on the left side of the supercharging cavity, the pressure regulating mechanism comprises a regulating cavity, a regulating rod and a sealing body, two cooling liquid ports are formed in the side wall above the cooling cylinder, and two supporting seats are arranged on the outer wall below the cooling cylinder. In the invention, the rotatable cooling tube group is arranged in the cooling tube, and the driving gear connected with the motor is meshed with the driving gear arranged on the outer wall of the tube group joint at one side of the cooling tube group, so that the cooling tube group is uniformly contacted with cooling water in the cooling tube, and the heat exchange efficiency is improved.
Description
Technical Field
The invention relates to the technical field of heat exchanger devices, in particular to a compression type heat exchanger component for refrigeration.
Background
According to the different types of the used refrigerants, the compression type refrigerators are divided into two types, namely a gas compression type refrigerator and a vapor compression type refrigerator, wherein the gas compression type refrigerator uses gas as the refrigerant, and the working principle of the gas compression type refrigerator is as follows: the gas compressed by the compressor is cooled in the heat exchanger, heat is released to the cooling water (or air), then flows through the heat regenerator to be further cooled by the returned gas, and enters the expander for adiabatic expansion, and the pressure and the temperature of the compressed gas are simultaneously reduced, so that the refrigerating effect is obtained.
The heat exchanger is an important part of the refrigerator, the existing tubular heat exchanger is one of common heat exchangers, but the following defects still exist in actual use:
1. the existing tubular heat exchanger is usually directly and fixedly arranged in the cooling cylinder, and the heat exchange tube of the heat exchanger is cooled by cooling water (or air) in the cooling cylinder, so that the temperature distribution in the cooling water in the cooling cylinder is uneven due to the fixed arrangement of the heat exchange tube of the heat exchanger, and the heat exchange effect is poor;
2. the heat exchange tube of the existing tube heat exchanger is arranged in the cooling cylinder to be too short, so that the heat exchange time is shortened, and the heat exchange effect is poor;
3. the existing heat exchanger is generally directly connected with a compressor, so that air compressed by the compressor directly enters the heat exchanger for cooling, and the air compressed by the compressor is easy to cause insufficient pressure and heat dissipation in the conduction process, so that the heat exchange effect in the heat exchanger is not ideal.
Disclosure of Invention
The present invention is directed to a compression heat exchanger assembly for refrigeration to solve the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a compression heat exchanger subassembly for refrigeration, including cooling tube, cooling tube group and supercharging device, the inside cooling tube group that is equipped with of cooling tube group comprises many body, and the both sides of cooling tube group all are equipped with the tube group joint, and the tube group joint rotates the contact with the both sides of cooling tube group, and the fixed cover of outer wall that the tube group joint was established to the cooling tube group left end is equipped with drive gear, and the place ahead of drive gear is equipped with the motor, and the rotation axis connection that the motor established is equipped with drive gear, and drive gear meshes with drive gear, and the left side of the tube group joint of hugging closely cooling tube group left end is equipped with the chamber that converges, and the right side of hugging closely cooling tube group right-hand member tube group joint is equipped with the reposition of redundant personnel chamber, supercharging device inside right side has seted up the pressure regulating mechanism in the left side of pressure regulating inner chamber, pressure regulating mechanism includes regulation inner chamber, regulation pole and seal, regulation inner chamber is the cavity of perpendicular setting up at supercharging device inside, and regulation inner chamber lower extreme opening communicates to the pressure regulating inner chamber, regulation inner chamber inside is equipped with the regulation pole, and regulation pole sets up inside the regulation inner chamber, and the regulation pole lower extreme passes through spring coupling seal, seal and regulation chamber and the lower extreme opening of regulation chamber cooperate closely contact, and the upper end of regulation chamber and the last cooling tube that has two side of cooling tube.
Preferably, the plurality of tube bodies forming the cooling tube group are spirally arranged, the cooling tube group is provided with a left-handed tube group and a right-handed tube group with opposite spiral directions, and the right-handed tube group is sleeved outside the left-handed tube group.
Preferably, a plurality of tube bodies forming the cooling tube group penetrate through tube group joints arranged at two ends, and two ends of the tube bodies are communicated with the flow distribution cavity and the flow converging cavity.
Preferably, the outer wall of the tube group joint is in rotary contact with two sides of the cooling cylinder, a supporting bearing is arranged at the contact position, and a sealing gasket is arranged on the inner side of the supporting bearing in a close contact manner.
Preferably, the supercharging device is arranged on the right side of the cooling cylinder, the supercharging guide pipe arranged on the left side of the supercharging device is inserted into the shunting cavity, and the bearing is arranged on the outer wall of the supercharging guide pipe and the connecting column of the left side wall of the shunting cavity.
Preferably, the outer wall of the adjusting rod is provided with threads, the adjusting rod is connected with the pressurizing device through threads, the sealing body is a spherical body, the upper part of the lower end opening of the adjusting inner cavity is a spherical concave surface, and the sealing body is in close contact with the upper part of the lower end opening of the adjusting inner cavity.
Preferably, the left side face connection of chamber that converges is equipped with the outlet duct, and the outlet duct outer wall rotates the contact with the left side wall of chamber that converges, and the contact department is equipped with the bearing, and the right side intercommunication of pressure boost inner chamber is equipped with the intake pipe, and intake pipe and pressure boost inner chamber's right side wall sealing connection.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality and has the following advantages:
1. in the invention, the rotatable cooling tube group is arranged in the cooling cylinder, and the driving gear connected with the motor is meshed with the driving gear arranged on the outer wall of the tube group joint at one side of the cooling tube group, so that the cooling tube group is uniformly contacted with cooling water in the cooling cylinder, and the heat exchange efficiency is improved;
2. the cooling tube group is formed by a plurality of heat conducting tube spirals, and the cooling tube group is provided with a left-handed tube group and a right-handed tube group which have different spiral directions, so that more cooling tube groups for heat exchange are contacted with cooling water for heat exchange, and the heat exchange efficiency is improved;
3. the invention is provided with the supercharging device, and the limit of the pressure regulating mechanism to the internal air pressure of the supercharging inner cavity can effectively ensure that the air meets the rated pressure and temperature.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic view of a supercharging device of the present invention;
FIG. 5 is a right side half cross-sectional view of the present invention
In the figure: the cooling cylinder 1, the cooling tube group 2, the left-hand tube group 201, the right-hand tube group 202, the supercharging device 3, the tube group joint 4, the shunt cavity 5, the transmission gear 6, the confluence cavity 7, the driving gear 8, the cooling liquid port 9, the supporting seat 10, the pressure adjusting mechanism 11, the supercharging cavity 12, the adjusting cavity 13, the adjusting rod 14, the sealing body 15, the supercharging conduit 16, the hand wheel 17, the supporting bearing 18, the sealing gasket 19 and the motor 20.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a compression heat exchanger component for refrigeration comprises a cooling cylinder 1, a cooling tube group 2 and a supercharging device 3, wherein the cooling tube group 2 is arranged in the cylindrical cooling cylinder 1 as shown in figure 1, the cooling tube group 2 is formed by a plurality of tube bodies in a spiral shape, both sides of the cooling tube group 2 are respectively provided with a cylindrical tube group joint 4, the tube group joints 4 are in rotary contact with both sides of the cooling cylinder 1, the outer wall of the tube group joint 4 arranged at the left end of the cooling tube group 2 is fixedly sleeved with a transmission gear 6, a motor 20 is arranged in front of the transmission gear 6, a rotating shaft arranged by the motor 20 is connected with a driving gear 8, the driving gear 8 is meshed with the transmission gear 6, the starting motor 20 can rotate the cooling tube group 2 through the meshing of the driving gear 8 and the transmission gear 6, a confluence cavity 7 is arranged at the left side of the tube group joint 4 which is tightly clung to the left end of the cooling tube group 2 as shown in figure 2, the right side of the tube group joint 4 which is clung to the right end of the cooling tube group 2 is provided with a shunt cavity 5, the right side of the inside of the supercharging device 3 is provided with a supercharging cavity 12, the left side of the supercharging cavity 12 is provided with a pressure regulating mechanism 11, the pressure regulating mechanism 11 comprises a regulating cavity 13, a regulating rod 14 and a sealing body 15, as shown in figure 4, the regulating cavity 13 is a cavity which is vertically arranged in the supercharging device 3, the lower end opening of the regulating cavity 13 is communicated with the supercharging cavity 12, the regulating cavity 13 is internally provided with a regulating rod 14, the regulating rod 14 is vertically arranged in the regulating cavity 13, the lower end of the cylindrical regulating rod 14 is connected with the sealing body 15 through a spring, the sealing body 15 is in close contact with the lower end opening of the regulating cavity 13 in a matched manner, the sealing body 15 can seal the lower end opening of the regulating cavity 13 under the action of the spring, the upper end of the regulating rod 14 penetrates through the upper surface of the supercharging device 3, and the upper end of adjusting lever 14 is equipped with hand wheel 17, and supercharging device 3's left side is equipped with pressure boost pipe 16, and pressure boost pipe 16 intercommunication adjusts the middle part of inner chamber 13, and two coolant liquid mouths 9 have been seted up to cooling cylinder 1's top lateral wall, are used for the filling and the derivation of coolant liquid respectively, keep the temperature of coolant liquid in a certain range, and cooling cylinder 1's below outer wall is equipped with two supporting seats 10, supports cooling cylinder 1.
As shown in fig. 1, the plurality of tube bodies constituting the cooling tube group 2 are spirally arranged, the cooling tube group 2 is provided with a left-hand tube group 201 and a right-hand tube group 202 with opposite spiral directions, and the right-hand tube group 202 is sleeved outside the left-hand tube group 201, so that the heat conduction tubes constituting the route tube group 2 are uniformly contacted with cooling water in the cooling cylinder 1 as much as possible, and the heat exchange efficiency is ensured.
As shown in fig. 2, a plurality of tube bodies constituting the cooling tube set 2 penetrate through tube set joints 4 provided at both ends, and both ends of the tube bodies are communicated with a flow distribution chamber 5 and a flow converging chamber 7, and the cooling tube set 2 is used for introducing air in the flow distribution chamber 5 into the flow converging chamber 7 and exchanging heat with cooling water in the process.
Referring to fig. 2 and 3, the outer wall of the tube group connector 4 is in rotary contact with two sides of the cooling cylinder 1, a supporting bearing 18 is arranged at the contact position, so that the tube group connector 4 and the cooling cylinder 1 can conveniently rotate, and a sealing gasket 19 is arranged on the inner side of the supporting bearing 18 in a tight fit manner, so that cooling water in the cooling cylinder 1 is prevented from flowing out from the joint.
As shown in fig. 2, the supercharging device 3 is disposed on the right side of the cooling cylinder 1, a supercharging conduit 16 disposed on the left side of the supercharging device 3 is inserted into the shunt cavity 5, and air after being supercharged by the supercharging device 3 is introduced into the shunt cavity 5 along the supercharging conduit 16, and since the shunt cavity 5 rotates along with the cooling tube set 2, a bearing is disposed between the outer wall of the supercharging conduit 16 and a connecting column of the left side wall of the shunt cavity 5.
As shown in fig. 4, the outer wall of the adjusting rod 14 is provided with threads, the adjusting rod 14 is connected with the supercharging device 3 through threads, the adjusting rod 14 can be adjusted up and down through the threaded relation between the adjusting rod 14 and the supercharging device 3, the pressure of the spring at the lower end of the adjusting rod 14 to the sealing body 15 is changed, the sealing body 15 is a spherical body, the upper part of the lower end opening of the adjusting cavity 13 is a spherical concave surface, the sealing body 15 is tightly contacted with the upper part of the lower end opening of the adjusting cavity 13, the contact area is ensured, and the sealing effect is improved.
The left side face connection of chamber 7 that converges is equipped with the outlet duct for discharge the air conditioning after the heat transfer, because chamber 7 that converges rotates along with cooling tube set 2, so the outlet duct outer wall and the left side wall rotation contact of chamber 7 that converges, and the contact department is equipped with the bearing, and the right side intercommunication of pressure boost inner chamber 12 is equipped with the intake pipe, and the intake pipe communicates with the compressor, and the intake pipe is with the right side wall sealing connection of pressure boost inner chamber 12, prevents to take place to leak and can not reach the pressure boost effect.
Working principle: when the air compressor works, the air inlet pipe connected to the right side of the pressurizing cavity 12 is communicated with the compressor, the pressure regulating mechanism 11 is arranged on the left side of the pressurizing cavity 12, the regulating rod 14 in the pressure regulating mechanism 11 is in threaded connection with the pressurizing device 3, the position of the regulating rod 14 can be regulated by rotating the hand wheel 17, the pressing force of the lower end spring on the sealing body 15 is regulated to be increased or reduced, if the air pressure compressed by the compressor is insufficient, the air is further compressed in the pressurizing cavity 12 until reaching the rated pressure, at the moment, the air jacks up the sealing body 15 and enters the shunt cavity 5 along the pressurizing conduit 16, the shunt cavity 5 is communicated with the two spiral heat conducting pipes of the left coil group 201 and the right coil group 202, the compressed air enters the left coil group 201 and the right coil group 202 to exchange heat with the cooling liquid filled in the cavity in the cooling cylinder 1, the motor 20 is started, the driving gear 8 connected with the driving gear 6 is meshed, the driving gear 6 drives the cooling pipe group joint 4 and the cooling pipe group 2 between the two pipe group joints 4 to rotate, the heat in the cooling pipe group joint 2 is guaranteed to be collected to the rated pressure, the heat in the cooling pipe group joint 2 is evenly heated to the cooling pipe 1, the heat exchange pipe is led out of the cooling pipe 1 is enabled to the cooling pipe joint 1, the cooling pipe is provided with a certain heat exchange efficiency, and the cooling pipe is led out of the cooling pipe is used for the cooling pipe 1 is connected to the cooling pipe 1, and the cooling pipe is provided with a certain temperature-exchanging pipe is used for the cooling pipe 9, and the cooling pipe is used for the cooling pipe is connected to the cooling pipe 1.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A compression heat exchanger assembly for refrigeration comprising a cooling cartridge (1), a cooling tube set (2) and a supercharging device (3), characterized in that: the cooling tube (1) is internally provided with a cooling tube group (2), the cooling tube group (2) is composed of a plurality of tube bodies, tube group joints (4) are respectively arranged at two sides of the cooling tube group (2), the tube group joints (4) are in rotary contact with two sides of the cooling tube (1), a transmission gear (6) is fixedly sleeved on the outer wall of the tube group joint (4) arranged at the left end of the cooling tube group (2), a motor (20) is arranged in front of the transmission gear (6), a driving gear (8) is arranged in rotary shaft connection arranged at the motor (20), the driving gear (8) is meshed with the transmission gear (6), a confluence cavity (7) is arranged at the left side of the tube group joint (4) arranged at the left end of the cooling tube group (2) in a close contact manner, a shunt cavity (5) is arranged at the right side of the tube group joint (4) arranged at the right end of the cooling tube group (2), a pressurizing cavity (12) is arranged at the right side of the inside of the pressurizing device (3), a pressure regulating mechanism (11) is arranged at the right side of the inside the pressurizing cavity (12), the pressure regulating mechanism (11) comprises a regulating cavity (13), a regulating rod (14) and a sealing body (15), the regulating cavity (13) is arranged at the left side of the pressurizing cavity (12), the pressure regulating mechanism is vertical to the regulating cavity (13), the regulating cavity (13) and the pressure regulating cavity (13) is communicated with the regulating cavity (13), the adjusting rod (14) is vertically arranged inside the adjusting cavity (13), the lower end of the adjusting rod (14) is connected with the sealing body (15) through a spring, the sealing body (15) is in close contact with the lower end opening of the adjusting cavity (13), the upper end of the adjusting rod (14) penetrates through the upper surface of the pressurizing device (3), the upper end of the adjusting rod (14) is provided with a hand wheel (17), the left side of the pressurizing device (3) is provided with a pressurizing conduit (16), the pressurizing conduit (16) is communicated with the middle part of the adjusting cavity (13), two cooling liquid ports (9) are formed in the upper side wall of the cooling cylinder (1), and two supporting seats (10) are formed in the lower outer wall of the cooling cylinder (1);
the supercharging device (3) is arranged on the right side of the cooling cylinder (1), a supercharging guide pipe (16) arranged on the left side of the supercharging device (3) is inserted into the shunting cavity (5), and a bearing is arranged on the outer wall of the supercharging guide pipe (16) and a connecting column of the left side wall of the shunting cavity (5);
the outer wall of the adjusting rod (14) is provided with threads, the adjusting rod (14) is connected with the pressurizing device (3) through threads, the sealing body (15) is a sphere, the upper part of the lower end opening of the adjusting inner cavity (13) is a sphere concave surface, and the sealing body (15) is tightly contacted with the upper part of the lower end opening of the adjusting inner cavity (13);
the left side face of the converging cavity (7) is connected with an air outlet pipe, the outer wall of the air outlet pipe is in rotary contact with the left side wall of the converging cavity (7), a bearing is arranged at the contact position, the right side of the pressurizing cavity (12) is communicated with an air inlet pipe, and the air inlet pipe is in sealing connection with the right side wall of the pressurizing cavity (12).
2. A compression heat exchanger assembly for refrigeration as set forth in claim 1 wherein: the plurality of tube bodies forming the cooling tube group (2) are spirally arranged, the cooling tube group (2) is provided with a left-handed tube group (201) and a right-handed tube group (202) with opposite spiral directions, and the right-handed tube group (202) is sleeved outside the left-handed tube group (201).
3. A compression heat exchanger assembly for refrigeration as set forth in claim 1 wherein: the plurality of tube bodies forming the cooling tube group (2) penetrate through tube group joints (4) arranged at two ends, and two ends of the tube bodies are communicated with a shunt cavity (5) and a confluence cavity (7).
4. A compression heat exchanger assembly for refrigeration as set forth in claim 1 wherein: the outer wall of the tube group joint (4) is in rotary contact with two sides of the cooling cylinder (1), a supporting bearing (18) is arranged at the contact position, and a sealing gasket (19) is arranged on the inner side of the supporting bearing (18) in a close contact manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811212077.XA CN109210833B (en) | 2018-10-18 | 2018-10-18 | Compression type heat exchanger assembly for refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811212077.XA CN109210833B (en) | 2018-10-18 | 2018-10-18 | Compression type heat exchanger assembly for refrigeration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109210833A CN109210833A (en) | 2019-01-15 |
| CN109210833B true CN109210833B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811212077.XA Active CN109210833B (en) | 2018-10-18 | 2018-10-18 | Compression type heat exchanger assembly for refrigeration |
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| Country | Link |
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| CN (1) | CN109210833B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033194A (en) * | 2020-08-26 | 2020-12-04 | 胡志鹏 | Coke oven waste heat multi-group utilization system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763316A (en) * | 1993-08-24 | 1995-03-07 | Ishikawajima Harima Heavy Ind Co Ltd | Ash cooler for pressurized fluidized bed boiler |
| CN202993232U (en) * | 2012-12-10 | 2013-06-12 | 江苏中兴化工设备有限公司 | Jacketed drum deslagging machine |
| CN207247235U (en) * | 2017-09-27 | 2018-04-17 | 南京天华化学工程有限公司 | One kind revolution cooler |
| CN208832775U (en) * | 2018-10-18 | 2019-05-07 | 浙江东信机械有限公司 | A kind of compression heat exchanger assembly for refrigeration |
-
2018
- 2018-10-18 CN CN201811212077.XA patent/CN109210833B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763316A (en) * | 1993-08-24 | 1995-03-07 | Ishikawajima Harima Heavy Ind Co Ltd | Ash cooler for pressurized fluidized bed boiler |
| CN202993232U (en) * | 2012-12-10 | 2013-06-12 | 江苏中兴化工设备有限公司 | Jacketed drum deslagging machine |
| CN207247235U (en) * | 2017-09-27 | 2018-04-17 | 南京天华化学工程有限公司 | One kind revolution cooler |
| CN208832775U (en) * | 2018-10-18 | 2019-05-07 | 浙江东信机械有限公司 | A kind of compression heat exchanger assembly for refrigeration |
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| Publication number | Publication date |
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| CN109210833A (en) | 2019-01-15 |
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Effective date of registration: 20230825 Address after: No. 30, Chongyi Road, Sanhe Economic Development Zone, Langfang City, Hebei Province 065000 Applicant after: SANHE TONGFEI REFRIGERATION CO.,LTD. Address before: 312500 Jinyu Village, Yulin Street, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: ZHEJIANG DONGXIN MACHINERY Co.,Ltd. |
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