CN217936323U - Water cooling heat exchanger protector of high-voltage frequency converter - Google Patents
Water cooling heat exchanger protector of high-voltage frequency converter Download PDFInfo
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- CN217936323U CN217936323U CN202221147558.9U CN202221147558U CN217936323U CN 217936323 U CN217936323 U CN 217936323U CN 202221147558 U CN202221147558 U CN 202221147558U CN 217936323 U CN217936323 U CN 217936323U
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- heat exchanger
- cooling heat
- water cooling
- water
- control system
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Abstract
The utility model discloses a high-voltage inverter water cooling heat exchanger protection device, it establishes integration humiture appearance in the bottom of water cooling heat exchanger, sets up electric valve at the water inlet of water cooling heat exchanger, and humiture appearance and electric valve all are connected with DCS control system. The utility model discloses when the damaged condition of water cooling heat exchanger pipe wall appears, integration humiture appearance inspection temperature and humidity rapid change and when exceeding the setting value, DCS control system closes electric valve immediately, cuts off cold water and gets into to solve the problem that water leakage appears in water cooling heat exchanger, protected the electricity distribution room.
Description
Technical Field
The utility model relates to a high-voltage inverter, concretely relates to high-voltage inverter water cooling heat exchanger protection device is a high-voltage inverter water cooling heat exchanger protection device that leaks.
Background
At present, two ways of reducing the indoor temperature of a high-voltage frequency conversion exist, one way is a method for installing a refrigeration air conditioner indoors, the method can play a good cooling effect, but the comprehensive cost of the method is very high due to very high installation and operation and maintenance costs of the air conditioner and huge energy consumption. And the other method is to adopt a water-cooling heat exchanger for cooling, the method is to extract high-temperature gas in the high-pressure frequency conversion chamber to the water-cooling heat exchanger positioned outside the high-pressure frequency conversion chamber for heat exchange with cooling water, and convey low-temperature gas after heat exchange to the high-pressure frequency conversion chamber, so as to achieve the purpose of cooling. The method has low operation energy consumption, the high-power frequency converter on the market adopts the method to cool at more levels, but the scheme has a fatal defect, and because the medium for intermediate heat exchange is water, when the heat exchanger is corroded and leaks water, if a large amount of water is not found in time, the water can enter a power distribution room, and secondary damage accidents of electrical equipment are caused.
Disclosure of Invention
The utility model aims to solve the technical problem of how to avoid the water cooling heat exchanger to appear leaking when the water cooling heat exchanger pipe wall is damaged.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides a high-voltage inverter water cooling heat exchanger protection device, includes the water cooling heat exchanger the integration humiture appearance is established to the bottom of water cooling heat exchanger, sets up electric valve at the water inlet of water cooling heat exchanger, and humiture appearance and electric valve all are connected with DCS control system.
The temperature and humidity instrument is connected with AI and RTD clamps of the DCS control system through signal cables.
The electric valve is connected with a DI clamping piece of the DCS control system through a power cable and a signal cable.
The utility model adopts the above technical scheme the high-voltage inverter water cooling heat exchanger protection device that designs establishes integration humiture appearance through the bottom at the water cooling heat exchanger, sets up electric valve at the water inlet of water cooling heat exchanger, and humiture appearance and electric valve all are connected with DCS control system. When the damaged condition of water cooling heat exchanger pipe wall appears, inside the heat transfer circulating water got into water cooling heat exchanger, water cooling heat exchanger's temperature because be hot-blast, humidity can increase suddenly, causes integration humiture appearance humidity grow. When the temperature and the humidity are rapidly changed by the integrated temperature and humidity meter and exceed the set values, the DCS control system immediately closes the electric valve to cut off the entry of cold water, so that the water is prevented from entering the power distribution room, and the problem of water leakage of the water cooling heat exchanger is solved.
Drawings
Fig. 1 shows a schematic structural diagram of the water-cooling heat exchanger protection device of the high-voltage inverter of the present invention;
fig. 2 shows a schematic structural view of the present invention in use.
Detailed Description
The following description is made in connection with the accompanying drawings for the protection device of the water cooling heat exchanger of the high-voltage inverter.
The utility model discloses high-voltage inverter water cooling heat exchanger protection device, see fig. 1, including water cooling heat exchanger 1, at water cooling heat exchanger 1's bottom trompil, downthehole installation integration humiture appearance 2, 2 passing signal cables of integration humiture appearance are connected with DCS control system's AI, RTD fastener. An electric valve 3 is arranged on a water inlet pipeline of the water cooling heat exchanger 1, and the electric valve 3 is connected with a DI clamping piece of the DCS control system through a power cable and a signal cable.
The Distributed Control System (DCS) is a new-generation instrument control system based on microprocessor and adopting the design principle of decentralized control function, centralized display operation, and integrated coordination. DCS is widely applied to various industries such as electric power, metallurgy, petrochemical industry and the like at present. The utility model discloses at DCS control system configuration, accomplish relevant system establishment, through the one minute before the storehouse instruction contrast and present temperature and humidity difference, if the difference is greater than behind the alarm set value, send audible and visual alarm immediately, suggestion operating personnel. If the difference value is larger than the fault set value, the valve is actuated immediately to cut off the water source and protect the power distribution room.
Referring to fig. 2, a large amount of heat generated in the operation process of the frequency converter 8 is dissipated from the top of the frequency converter 8, the heat is introduced into the water cooling heat exchanger 1 through the air pipe 7, cold water enters the water cooling heat exchanger 1 to exchange heat with hot air, and the hot water exits the heat exchanger and returns to the production system. The cooling air enters the high-voltage frequency conversion chamber through the heat exchange tube 4. An emergency air outlet 6 is also arranged on the air pipe 7, and an access door 5 is also arranged on the water cooling heat exchanger 1.
When the water cooling heat exchanger operates normally, the integrated temperature and humidity meter 2 detects the temperature and humidity of circulating air inside the water cooling heat exchanger 1, the humidity is not allowed to be larger than 20% according to the requirements of the relevant humidity and temperature of a power distribution room, the temperature is basically between 20 and 38 ℃, and the detection data of the integrated temperature and humidity meter 2 is basically 10% of the humidity and 48 ℃. When the damaged condition of 1 pipe wall of water cooling heat exchanger takes place, the heat transfer circulating water gets into inside water cooling heat exchanger 1, and water cooling heat exchanger 1's temperature because be hot-blast, humidity can increase suddenly, causes 2 humidity grow of integration humiture appearance. When the temperature and the humidity of the integrated temperature and humidity meter 2 are rapidly changed and exceed the set values, the DCS control system immediately closes the electric valve 3 to cut off the entering of cold water and prevent the water from entering the distribution room.
Claims (3)
1. The protection device comprises a water cooling heat exchanger and is characterized in that an integrated humiture instrument is arranged at the bottom of the water cooling heat exchanger, an electric valve is arranged at a water inlet of the water cooling heat exchanger, and the humiture instrument and the electric valve are both connected with a DCS (distributed control system).
2. The protection device for the water-cooling heat exchanger of the high-voltage frequency converter as claimed in claim 1, wherein the temperature and humidity meter is connected with AI and RTD cards of a DCS control system through a signal cable.
3. The protection device of the water-cooled heat exchanger of the high-voltage frequency converter as claimed in claim 1, wherein the electrically operated valve is connected with a DI card of the DCS control system through a power cable and a signal cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147558.9U CN217936323U (en) | 2022-05-13 | 2022-05-13 | Water cooling heat exchanger protector of high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147558.9U CN217936323U (en) | 2022-05-13 | 2022-05-13 | Water cooling heat exchanger protector of high-voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217936323U true CN217936323U (en) | 2022-11-29 |
Family
ID=84178160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221147558.9U Active CN217936323U (en) | 2022-05-13 | 2022-05-13 | Water cooling heat exchanger protector of high-voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217936323U (en) |
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2022
- 2022-05-13 CN CN202221147558.9U patent/CN217936323U/en active Active
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