CN113161114A - Cold rolling welding machine and cooling system of transformer thereof - Google Patents
Cold rolling welding machine and cooling system of transformer thereof Download PDFInfo
- Publication number
- CN113161114A CN113161114A CN202110358949.9A CN202110358949A CN113161114A CN 113161114 A CN113161114 A CN 113161114A CN 202110358949 A CN202110358949 A CN 202110358949A CN 113161114 A CN113161114 A CN 113161114A
- Authority
- CN
- China
- Prior art keywords
- cooling
- transformer
- coolant
- cooling liquid
- cold rolling
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/085—Welding transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
Abstract
The invention discloses a cold rolling welding machine and a cooling system of a transformer thereof, wherein the cooling system of the transformer of the cold rolling welding machine comprises: the cooling device comprises a plurality of connecting pipelines and a plurality of speed regulating valves; the cooling device is communicated with a plurality of cooling liquid interfaces of the transformer through the plurality of connecting pipelines; the plurality of connecting pipes include: at least two coolant outlet lines and at least one coolant recovery line; the speed regulating valve is arranged in the cooling liquid output pipeline; the plurality of coolant ports includes: at least two coolant inlets, and at least one coolant outlet; and the cooling liquid output pipeline is communicated with the cooling liquid inlet, and the cooling liquid recovery pipeline is communicated with the cooling liquid outlet. The cold rolling welding machine and the cooling system of the transformer thereof provided by the invention improve the stability and the cooling effect of the cooling system of the transformer of the cold rolling welding machine.
Description
Technical Field
The invention relates to the technical field of cold rolling, in particular to a cold rolling welding machine and a cooling system of a transformer of the cold rolling welding machine.
Background
The cold rolling welding machine mainly cools a transformer of the welding machine, and is divided into an inner cooling system and an outer cooling system, wherein the inner cooling system directly cools the transformer, the outer cooling system cools the inner cooling system, and the inner cooling system cools each part of the transformer in a series connection mode at present. However, the transformer cooling system of this type is generally prone to faults such as coolant overflow and insufficient cooling flow, which results in unstable system and poor cooling effect.
Disclosure of Invention
The embodiment of the application provides a cold rolling welding machine and a cooling system of a transformer thereof, and improves the stability and the cooling effect of the cooling system of the transformer of the cold rolling welding machine.
The invention provides a cooling system of a cold rolling welder transformer, which comprises: the cooling device comprises a plurality of connecting pipelines and a plurality of speed regulating valves; the cooling device is communicated with a plurality of cooling liquid interfaces of the transformer through the plurality of connecting pipelines;
the plurality of connecting pipes include: at least two coolant outlet pipes, and at least one coolant recovery pipe; the speed regulating valve is arranged in the cooling liquid output pipeline;
the plurality of coolant ports includes: at least two coolant inlets, and at least one coolant outlet; and the cooling liquid output pipeline is communicated with the cooling liquid inlet, and the cooling liquid recovery pipeline is communicated with the cooling liquid outlet.
Preferably, the cooling device comprises a cooling liquid tank and a circulating pump; the cooling liquid tank is communicated with the circulating pump, the output end of the circulating pump is respectively communicated with the at least two cooling liquid inlets through the at least two cooling liquid output pipelines, and the input end of the circulating pump is communicated with the at least one cooling liquid outlet through the at least one cooling liquid recovery pipeline.
Preferably, the cooling device further comprises a refrigerator, and the refrigerator is communicated with the cooling liquid tank.
Preferably, the output end of the cooling device is also provided with a stop valve.
Preferably, a flow meter is arranged in the cooling liquid output pipeline.
The present invention also provides a cold rolling welder, comprising: the cooling system of the transformer of the cold rolling welding machine and the transformer of the cold rolling welding machine communicated with the cooling system.
Preferably, the transformer comprises a coil structure, a rectifying structure and a cooling cavity structure;
the rectification structure and the cooling cavity structure all are located the coil structure outside, just be provided with first cooling tube in the cooling cavity structure, be provided with the second cooling tube in the rectification structure, first cooling tube with it does not be provided with coolant liquid import and coolant liquid export to equally divide on the second cooling tube.
Preferably, the first cooling pipeline is provided with at least two cooling liquid inlets, the first cooling liquid inlet of the first cooling pipeline is communicated with the cooling liquid outlet of the second cooling pipeline through a transformer pipeline, and the second cooling liquid inlet of the first cooling pipeline is communicated with the output end of the cooling device through a cooling liquid output pipeline.
Preferably, a flowmeter and a flow switch are arranged in the transformer pipeline.
Preferably, the first cooling duct includes at least three branch ducts, one ends of the at least three branch ducts are communicated with each other, and the other ends of the at least three branch ducts are the cooling liquid inlet or the cooling liquid outlet, respectively.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the invention provides a cold rolling welding machine and a cooling system of a transformer thereof.A cooling device is respectively communicated with at least two cooling liquid inlets and at least one cooling liquid outlet of a transformer of the cold rolling welding machine through at least two cooling liquid output pipelines and at least one cooling liquid recovery pipeline, a speed regulating valve is arranged in each cooling liquid output pipeline, the flow of the cooling liquid in each cooling liquid output pipeline can be regulated through the speed regulating valve, when the transformer of the cold rolling welding machine is circularly cooled, at least two cooling liquid output pipelines are used for conveying cooling liquid to the transformer of the cold rolling welding machine, the speed regulating valve is also arranged in each cooling liquid output pipeline and used for regulating the speed of the cooling liquid, when the flow rate of the cooling liquid is smaller due to the unstable state of one cooling liquid output pipeline, the speed regulating valve of the other cooling liquid output pipeline can be regulated, so that the flow rate of the cooling liquid conveyed, the stability and the cooling effect of the cooling system of the transformer of the cold rolling welding machine are improved.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a cooling system of a transformer of a cold rolling welder provided by the invention.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
The cooling system of the transformer of the existing cold rolling welding machine has the problems of unstable work and easy fault shutdown. The cooling system of the transformer of the existing cold rolling welding machine comprises an inner cooling system and an outer cooling system, wherein the inner cooling system provides the transformer with circulating cooling operation, and the outer cooling system provides the inner cooling system with circulating cooling operation. Outer cooling system includes cooling arrangement, interior cooling system includes interior cooling pump group and a kettle, interior cooling pump group forms a series circuit with the transformer, provide the cooling water for the transformer through interior cooling pump group, carry out circulative cooling, the dead weight of cooling water provides the supply for the transformer in the kettle is recycled, but the operation of interior cooling pump group is unstable, the time is big little when the cooling water flow that leads to interior cooling pump group to provide for the transformer, when the cooling water flow that interior cooling pump group provided leads to the cooling water pressure in the transformer too big great, cooling water in the kettle can't provide the supply, can overflow even, and then the cooling system that leads to whole cold welding machine transformer breaks down and shuts down.
Aiming at the defects in the prior art, the invention mainly solves the problems that the cooling system of the transformer of the cold rolling welding machine is unstable in operation and easy to fail and stop. In order to solve the problem, the technical scheme provided by the invention is as follows:
as shown in fig. 1, the present invention provides a cooling system for a transformer of a cold rolling welder, comprising: a cooling device 1, a plurality of connecting pipelines 3 and a plurality of speed regulating valves 4; the cooling device 1 is communicated with a plurality of cooling liquid interfaces of the transformer 2 of the cold rolling welding machine through a plurality of connecting pipelines 3, the output end of the cooling device 1 is also provided with a stop valve 5, and the stop valve 5 can control the opening and closing of the output end of the cooling device 1.
The plurality of connecting pipes 3 include: at least two coolant outlet pipes, and at least one coolant recovery pipe; the speed regulating valve 4 is arranged in a cooling liquid output pipeline, and a flow meter 6 is also arranged in the cooling liquid output pipeline. The flow rate of the cooling liquid in the cooling liquid output pipeline can be adjusted through the speed adjusting valve 4, and the flow meter 6 can acquire the flow rate data of the cooling liquid in the cooling liquid output pipeline.
The plurality of coolant ports includes: at least two coolant inlets, and at least one coolant outlet; and the cooling liquid output pipeline is communicated with the cooling liquid inlet, and the cooling liquid recovery pipeline is communicated with the cooling liquid outlet.
The cooling device 1 includes a coolant tank 11, a circulation pump 12, and a refrigerator 13. The cooling liquid tank 11 is communicated with a circulating pump 12, the output end of the circulating pump 12 is respectively communicated with at least two cooling liquid inlets through at least two cooling liquid output pipelines, and the input end of the circulating pump 12 is communicated with at least one cooling liquid outlet through at least one cooling liquid recovery pipeline; the refrigerator 13 communicates with the coolant tank 11, and the coolant tank 11 may be a water tank.
In one embodiment, the plurality of connecting pipes 3 includes: three coolant output pipelines and one coolant recovery pipeline; the plurality of coolant ports includes: three coolant inlets, and one coolant outlet. Three branch pipelines are branched from a main pipeline at the output end of the circulating pump 12 to form a parallel connection mode and are respectively connected to three cooling liquid inlets ABC of the transformer 2 of the cold rolling welding machine, a speed regulating valve 4 is arranged in each branch pipeline, and the input end of the circulating pump 12 is connected to a cooling liquid outlet D.
In another embodiment, the cooling system of the transformer of the cold rolling welder may further include a control device, the control device is in communication connection with the plurality of speed control valves 4 and the flow meter 6, the control device determines whether the first cooling liquid output pipeline exists according to the flow data of the cooling liquid collected by the flow meter 6, and if the first cooling liquid output pipeline exists, the valve opening of the regulating valve 4 of the second cooling liquid output pipeline is adjusted, which may be an increase of the valve opening, so as to ensure that the total flow of the cooling liquid output to the transformer is kept at the preset total flow value.
The first cooling liquid output pipeline is a cooling liquid output pipeline with the flow of the cooling liquid lower than a preset branch flow value, and the second cooling liquid output pipeline is a cooling liquid output pipeline with the flow of the cooling liquid not lower than the preset branch flow value.
The invention also provides a cold rolling welder comprising: the cooling system of the transformer of the cold rolling welding machine and the transformer 2 of the cold rolling welding machine communicated with the cooling system.
The transformer 2 of the cold-rolling welding machine comprises a coil structure 22, a rectifying structure 23 and a cooling cavity structure 21.
Rectifying structure 23 and cooling chamber structure 21 all are located the coil structure 22 outside, and are provided with first cooling tube 211 in the cooling chamber structure 21, are provided with second cooling tube 231 in the rectifying structure 23, equally divide on first cooling tube 211 and the second cooling tube 231 and do not be provided with coolant liquid import and coolant liquid export.
The first cooling pipe 211 is provided with at least two cooling inlets, the first cooling inlet of the first cooling pipe 211 is communicated with the cooling outlet of the second cooling pipe 231 through the transformer pipe 7, and the second cooling inlet of the first cooling pipe 211 is communicated with the output end of the cooling device 1 through the cooling outlet pipe.
The transformer pipeline 7 is provided with a flow meter 6 and a flow switch 8, the flow meter 6 can obtain the flow of the cooling liquid in the transformer pipeline 7, and the flow switch 8 is used for giving an alarm when the flow of the cooling liquid in the transformer pipeline 7 is lower than a preset threshold value.
The first cooling duct 211 includes at least three branch ducts, one ends of the at least three branch ducts are communicated with each other, and the other ends of the at least three branch ducts are respectively a cooling liquid inlet or a cooling liquid outlet.
In one embodiment, the first cooling conduit 211 comprises four branch conduits, one end of each branch conduit is connected to another end of each branch conduit, the other end of each branch conduit is used as a cooling liquid inlet, and the other end of each branch conduit is used as a cooling liquid outlet.
In summary, in the cooling system of the cold rolling welding machine and the transformer thereof provided by the present invention, the cooling device 1 is respectively communicated with the at least two cooling liquid inlets and the at least one cooling liquid outlet of the transformer 2 of the cold rolling welding machine through the at least two cooling liquid output pipelines and the at least one cooling liquid recovery pipeline, the speed regulating valve 4 is arranged in the cooling liquid output pipelines, the flow rate of the cooling liquid in the cooling liquid output pipelines can be regulated through the speed regulating valve 4, when the cold rolling welding machine transformer 2 is circularly cooled, the at least two cooling liquid output pipelines deliver the cooling liquid to the cold rolling welding machine transformer 2, and the speed regulating valve 4 is further arranged in the cooling liquid output pipelines for regulating the speed of the cooling liquid, when the flow rate of the cooling liquid is small due to the unstable state of one cooling liquid output pipeline, the speed regulating valve 4 of the other cooling liquid output pipeline can be regulated, so that the flow rate of the cooling liquid delivered to the cold rolling welding machine transformer 2 is integrally stable, the stability and the cooling effect of the cooling system of the transformer of the cold rolling welding machine are improved.
In addition, compared with the existing cooling system of the transformer of the cold rolling welding machine, the invention does not adopt an internal cooling pump set and a kettle, thereby reducing the equipment purchase and maintenance cost, controlling the transformer 2 of the cold rolling welding machine to carry out circulating cooling through the cooling device 1, avoiding the situation of overflowing cooling water in the kettle and reducing the failure probability of the cooling system of the transformer of the cold rolling welding machine.
In the cooling system of the cold rolling welding machine and the transformer thereof provided by the invention, two cooling devices 1 can be provided to be connected into the transformer 2 of the cold rolling welding machine, one cooling device 1 is used normally, the other cooling device is used for standby, and when one cooling device 1 fails, the other cooling device 1 starts to be started.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A cooling system for a cold rolling welder transformer, comprising: the cooling device comprises a plurality of connecting pipelines and a plurality of speed regulating valves; the cooling device is communicated with a plurality of cooling liquid interfaces of the transformer through the plurality of connecting pipelines;
the plurality of connecting pipes include: at least two coolant outlet pipes, and at least one coolant recovery pipe; the speed regulating valve is arranged in the cooling liquid output pipeline;
the plurality of coolant ports includes: at least two coolant inlets, and at least one coolant outlet; and the cooling liquid output pipeline is communicated with the cooling liquid inlet, and the cooling liquid recovery pipeline is communicated with the cooling liquid outlet.
2. The cooling system of a transformer of a cold rolling welder as recited in claim 1, wherein said cooling means comprises a cooling liquid tank and a circulation pump; the cooling liquid tank is communicated with the circulating pump, the output end of the circulating pump is respectively communicated with the at least two cooling liquid inlets through the at least two cooling liquid output pipelines, and the input end of the circulating pump is communicated with the at least one cooling liquid outlet through the at least one cooling liquid recovery pipeline.
3. The cooling system of a cold rolling welder transformer according to claim 2, characterized in that the cooling device further comprises a refrigerator, and the refrigerator is communicated with the cooling liquid tank.
4. The cooling system of a transformer of a cold rolling welder according to claim 1, characterized in that the output end of the cooling device is further provided with a stop valve.
5. The cooling system of a cold rolling welder transformer according to claim 1, characterized in that a flow meter is provided in the coolant output pipe.
6. A cold roll welder, comprising: a cooling system for a cold rolling welder transformer as claimed in any one of claims 1 to 5, and a cold rolling welder transformer in communication with said cooling system.
7. The cold roll welder of claim 5, wherein the transformer comprises a coil structure, a rectifying structure, and a cooling cavity structure;
the rectification structure and the cooling cavity structure all are located the coil structure outside, just be provided with first cooling tube in the cooling cavity structure, be provided with the second cooling tube in the rectification structure, first cooling tube with it does not be provided with coolant liquid import and coolant liquid export to equally divide on the second cooling tube.
8. The cold roll welder of claim 7, wherein the first cooling duct is provided with at least two of the coolant inlets, the first coolant inlet of the first cooling duct communicates with the coolant outlet of the second cooling duct through a transformer duct, and the second coolant inlet of the first cooling duct communicates with the output of the cooling device through a coolant output duct.
9. Cold roll welder according to claim 8, characterized in that a flow meter and a flow switch are arranged in said transformer pipe.
10. The cold rolling welder according to claim 7, wherein said first cooling duct comprises at least three branch ducts, one end of said at least three branch ducts being connected to each other, and the other end of said at least three branch ducts being said coolant inlet or said coolant outlet, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358949.9A CN113161114B (en) | 2021-04-02 | 2021-04-02 | Cold rolling welding machine and cooling system of transformer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358949.9A CN113161114B (en) | 2021-04-02 | 2021-04-02 | Cold rolling welding machine and cooling system of transformer thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113161114A true CN113161114A (en) | 2021-07-23 |
| CN113161114B CN113161114B (en) | 2023-07-21 |
Family
ID=76886212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110358949.9A Active CN113161114B (en) | 2021-04-02 | 2021-04-02 | Cold rolling welding machine and cooling system of transformer thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113161114B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035273A (en) * | 1998-07-17 | 2000-02-02 | Sanyo Electric Co Ltd | Cooling system |
| CN202169436U (en) * | 2011-06-20 | 2012-03-21 | 深圳市鸿栢科技实业有限公司 | Water-cooling high-frequency transformer and cooling device of high-frequency transformer |
| CN102441751A (en) * | 2012-01-06 | 2012-05-09 | 江苏华光双顺机械制造有限公司 | Closed circulation cooling system for welder |
| CN202715984U (en) * | 2012-06-29 | 2013-02-06 | 上海新朋联众汽车零部件有限公司 | Cooling pipeline for welding machine |
| CN103697719A (en) * | 2013-12-30 | 2014-04-02 | 国核华清（北京）核电技术研发中心有限公司 | Parallel multi-branch cooling water distribution and adjustment system |
| CN104023894A (en) * | 2011-10-31 | 2014-09-03 | 弗罗纽斯国际有限公司 | Resistance welding device comprising a current source arranged on a welding gun |
| CN105704990A (en) * | 2016-04-26 | 2016-06-22 | 广东申菱环境系统股份有限公司 | Liquid cooling system and intelligent temperature control unit therefor |
| CN107014220A (en) * | 2017-05-19 | 2017-08-04 | 南京腾图节能科技有限公司 | A kind of energy-conservation cooling circulating water device for automatically adjusting temperature |
| CN110653476A (en) * | 2018-06-29 | 2020-01-07 | 秭归帝元食品罐头股份有限公司 | High-frequency welding machine welding briquetting |
| CN110726069A (en) * | 2019-10-31 | 2020-01-24 | 海德利森(天津)检测设备有限公司 | Cooling system for skid-mounted hydrogenation equipment |
| CN111554486A (en) * | 2019-02-08 | 2020-08-18 | 罗伯特·博世有限公司 | Component and transformer device for resistance welding |
-
2021
- 2021-04-02 CN CN202110358949.9A patent/CN113161114B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035273A (en) * | 1998-07-17 | 2000-02-02 | Sanyo Electric Co Ltd | Cooling system |
| CN202169436U (en) * | 2011-06-20 | 2012-03-21 | 深圳市鸿栢科技实业有限公司 | Water-cooling high-frequency transformer and cooling device of high-frequency transformer |
| CN104023894A (en) * | 2011-10-31 | 2014-09-03 | 弗罗纽斯国际有限公司 | Resistance welding device comprising a current source arranged on a welding gun |
| CN102441751A (en) * | 2012-01-06 | 2012-05-09 | 江苏华光双顺机械制造有限公司 | Closed circulation cooling system for welder |
| CN202715984U (en) * | 2012-06-29 | 2013-02-06 | 上海新朋联众汽车零部件有限公司 | Cooling pipeline for welding machine |
| CN103697719A (en) * | 2013-12-30 | 2014-04-02 | 国核华清（北京）核电技术研发中心有限公司 | Parallel multi-branch cooling water distribution and adjustment system |
| CN105704990A (en) * | 2016-04-26 | 2016-06-22 | 广东申菱环境系统股份有限公司 | Liquid cooling system and intelligent temperature control unit therefor |
| CN107014220A (en) * | 2017-05-19 | 2017-08-04 | 南京腾图节能科技有限公司 | A kind of energy-conservation cooling circulating water device for automatically adjusting temperature |
| CN110653476A (en) * | 2018-06-29 | 2020-01-07 | 秭归帝元食品罐头股份有限公司 | High-frequency welding machine welding briquetting |
| CN111554486A (en) * | 2019-02-08 | 2020-08-18 | 罗伯特·博世有限公司 | Component and transformer device for resistance welding |
| CN110726069A (en) * | 2019-10-31 | 2020-01-24 | 海德利森(天津)检测设备有限公司 | Cooling system for skid-mounted hydrogenation equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113161114B (en) | 2023-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109164895A (en) | A kind of server liquid cooling system and water pump the using and the reserved no-harass switch control method | |
| CN111442438A (en) | System and control method for refrigerating machine room | |
| CN106765776B (en) | Distributed variable-frequency three-stage pump regional cooling system and method | |
| CN109584950B (en) | Cooling system for instrument | |
| CN113161114A (en) | Cold rolling welding machine and cooling system of transformer thereof | |
| CN206192003U (en) | High accuracy constant temperature cooling water automation equipment | |
| CN205876403U (en) | Open circulation cooling water system | |
| CN105756130A (en) | Bearing bush constant-temperature water supply system | |
| CN109539636B (en) | Method for bringing heat of condenser of air cooling box | |
| CN110274315A (en) | A kind of data center's cold source system | |
| CN216924023U (en) | Crude oil buffer tank control system | |
| CN110542270A (en) | Special cooling unit of PCW system | |
| CN113517115A (en) | Oil-water cooler, operation control method thereof and cooling system constructed by using same | |
| CN211233397U (en) | Water temperature control system | |
| CN108443861B (en) | Energy-saving device for eliminating back pressure of closed condensate water recovery system | |
| CN113883626B (en) | Air conditioning system and cold charging and discharging control method of cold storage tank of air conditioning system | |
| CN205606997U (en) | Refrigerating station and network system | |
| CN205487371U (en) | Subcooling system is prevented to open cooling water of nuclear power plant | |
| WO2020034596A1 (en) | Thermodynamic equilibrium system of pressure reducing system | |
| CN214537463U (en) | Redundant cooling system | |
| CN214537464U (en) | Redundant cooling system | |
| CN219321060U (en) | Equipment cooling water system for passive nuclear power plant | |
| CN220229639U (en) | Stable pressure moisturizing device and system | |
| CN220270128U (en) | Peak cooling system | |
| CN220707862U (en) | Normal temperature pressure circulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |