CN213244742U - Air-water cooling integrated cooling system of frequency converter cabinet - Google Patents

Air-water cooling integrated cooling system of frequency converter cabinet Download PDF

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Publication number
CN213244742U
CN213244742U CN202022227645.2U CN202022227645U CN213244742U CN 213244742 U CN213244742 U CN 213244742U CN 202022227645 U CN202022227645 U CN 202022227645U CN 213244742 U CN213244742 U CN 213244742U
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water
air
frequency converter
converter cabinet
communicated
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殷银华
吴桂林
姚红梅
田斌斌
刘伟伟
陈敬灿
杨国
陈维
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Hubei Sanning Chemical Co Ltd
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Hubei Sanning Chemical Co Ltd
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Abstract

An air-water cooling integrated cooling system of a frequency converter cabinet comprises a shell arranged at the top of the frequency converter cabinet, wherein the shell is communicated with the frequency converter cabinet, a heat dissipation assembly is arranged in the shell, the heat dissipation assembly is communicated with a condenser through a water pipe, and the condenser is used for cooling circulating water in a water supply pipe; the top of the shell is provided with an exhaust fan, the top of the exhaust fan is provided with a wind gathering cover, and the wind gathering cover is communicated with the air outlet pipe. According to the technical scheme, the water-cooling and air-cooling integrated device is arranged at the top of the frequency converter cabinet, and the air-cooling system or the water-cooling system can be selectively started according to the temperature in the cabinet body; in addition, the fin is the bar shaped plate, and the vertical setting of bar shaped plate, bar shaped plate and downcomer axis parallel arrangement, and the fin is difficult for blockking the rising of hot-air like this, reason heat and downcomer carry out cold and hot exchange.

Description

Air-water cooling integrated cooling system of frequency converter cabinet
Technical Field
The utility model belongs to converter cooling equipment field, in particular to converter cabinet air-water-cooling integral type cooling system.
Background
The high-voltage frequency converter is required to have extremely high reliability in the industrial production fields of electric power, chemical industry, coal mine, metallurgy and the like. Factors influencing the reliable operation of the frequency converter are various, the quality of the phase-shifting transformer, the power module and the body components and parts, the stability of a control system and the like, wherein the key is to select a cooling mode to ensure heat dissipation and ventilation facilities of the transformer and the power module in the frequency converter, and the key is important. For example, in a certain glycol project, three large boilers are matched with heat and electricity, and each boiler is matched with 1 high-power 4800KW induced draft fan. 2 primary air fans and 2 secondary air fans. The power of the motor is 1250 KW. Each fan adopts a variable frequency speed control system. The operation of any frequency converter will affect the operation condition of each boiler and the stable production operation of the ethylene glycol company. Because the frequency converter has high power, a large amount of heat is generated during normal operation. In order to ensure the normal work of the frequency converter, a heat dissipation and ventilation scheme is urgently needed to be optimized, and the aim is to dissipate a large amount of heat, realize the efficient heat dissipation of equipment and improve the reliability of the equipment.
The problem of overhigh working environment temperature of the frequency converter chamber directly endangers the operation safety of the frequency converter body; finally, the temperature is too high, so that the frequency converter overheating protection action trips. In order to ensure that the frequency converter has a good operating environment, measures must be taken for temperature control of the frequency converter and the operating environment. Along with the increase of installed capacity and power of the frequency converter, a matched and applicable cooling system special for high-voltage frequency conversion is adopted, the benefit maximization of a high-voltage frequency conversion energy-saving project is realized, and the method has positive significance.
Disclosure of Invention
In view of the technical problems in the background art, the air-water cooling integrated cooling system for the frequency converter cabinet provided by the utility model has the advantages that the water-cooling and air-cooling integrated device is arranged at the top of the frequency converter cabinet, so that the air cooling system or the water cooling system can be selectively opened according to the temperature in the cabinet body; in addition, the fin is the bar shaped plate, and the vertical setting of bar shaped plate, bar shaped plate and downcomer axis parallel arrangement, and the fin is difficult for blockking the rising of hot-air like this, reason heat and downcomer carry out cold and hot exchange.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:
an air-water cooling integrated cooling system of a frequency converter cabinet comprises a shell arranged at the top of the frequency converter cabinet, wherein the shell is communicated with the frequency converter cabinet, a heat dissipation assembly is arranged in the shell, the heat dissipation assembly is communicated with a condenser through a water pipe, and the condenser is used for cooling circulating water in the water pipe; the top of the shell is provided with an exhaust fan, the top of the exhaust fan is provided with a wind gathering cover, and the wind gathering cover is communicated with the air outlet pipe.
In a preferred scheme, the heat dissipation assembly comprises a water inlet pipe, a water outlet pipe and a plurality of descending pipes, wherein each descending pipe is vertically arranged; the water inlet pipe is communicated with the top end of each descending pipe, and the descending pipes are communicated with the bottom ends of the descending pipes.
In a preferred scheme, a plurality of radiating fins are arranged on the downcomer.
In the preferred scheme, the fin be the bar shape board, and the vertical setting of bar shape board, bar shape board and downcomer axis parallel arrangement.
In the preferred scheme, the upper end and the lower end of the downcomer are respectively provided with an upper water inlet pipe support and a lower water outlet pipe support, the upper water inlet pipe support is communicated with a water inlet pipe, and the lower water outlet pipe support is communicated with a water outlet pipe.
The number of the heat dissipation assemblies is two, one heat dissipation assembly is used for introducing circulating water, and the other heat dissipation assembly is used for introducing demineralized water.
This patent can reach following beneficial effect:
this technical scheme designs water-cooling and air-cooling integral type cooling system in order to improve the converter radiating efficiency to improve the radiating effect. The converter is high-power consumer, and the temperature in the converter cabinet is than higher, and hot-air can gather at converter cabinet top, and this technical scheme has set up water-cooling and air-cooling integrated device in converter cabinet top, can open air cooling system or water cooling system according to the internal temperature selectivity of cabinet. When the temperature is higher in summer, the water cooling system and the air cooling system can be started simultaneously, and quick heat dissipation of the frequency converter cabinet is facilitated. In addition, this technical scheme's fin is the bar shaped plate, and the vertical setting of bar shaped plate, and bar shaped plate and downcomer axis parallel arrangement, and the fin is difficult for blockking hot-air's rising like this, reason heat and downcomer carry out cold and hot exchange.
The number of the heat dissipation assemblies is two, one heat dissipation assembly is used for introducing circulating water, and the other heat dissipation assembly is used for introducing demineralized water. When the summer temperature is higher, the refrigerated water (or demineralized water) quantity is very big, and not enough problem can appear in factory refrigerated water (or demineralized water) supply, and this technical scheme divides two-layer cooling, and circulating water (or primary water) forced cooling, the refrigerated water (or demineralized water) is cooled down once more for the second floor, can be different according to the temperature regulation demand all the year round for energy-conserving application, adjusts the quantity of circulating water (or primary water) and refrigerated water (or demineralized water) respectively, reaches energy-conserving purpose.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a schematic view of the installation structure of the present invention;
FIG. 2 is a three-dimensional structure diagram of the heat dissipation assembly of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a front view of the heat dissipating assembly of the present invention;
fig. 5 is the design structure diagram of the two-layer water cooling of the present invention.
In the figure: the frequency converter cabinet comprises a frequency converter cabinet 1, a shell 2, a heat dissipation assembly 3, a water inlet pipe 31, a water outlet pipe 32, a down pipe 33, a heat dissipation fin 34, an upper water inlet pipe frame 35, a lower water outlet pipe frame 36, a condenser 4, a condenser water outlet pipe 41, a condenser water outlet pipe 42, an air exhaust fan 5, an air collecting cover 6, an air outlet pipe 7 and a power distribution room 8.
Detailed Description
A preferable scheme is as shown in fig. 1 to 5, the air-water cooling integrated cooling system of the frequency converter cabinet comprises a shell 2 arranged at the top of the frequency converter cabinet 1, the shell 2 is communicated with the frequency converter cabinet 1, a heat dissipation component 3 is arranged in the shell 2, the heat dissipation component 3 is communicated with a condenser 4 through a water pipe, and the condenser 4 is used for cooling circulating water in the water pipe; an air exhaust fan 5 is arranged at the top of the shell 2, an air collecting cover 6 is arranged at the top of the air exhaust fan 5, and the air collecting cover 6 is communicated with an air outlet pipe 7.
The converter is high-power consumer, and the temperature in the converter cabinet 1 is than higher, and hot-air can gather at 1 tops of converter cabinet, and this technical scheme has set up water-cooling and air-cooling integrated device at 1 tops of converter cabinet, can open air cooling system or water cooling system according to the internal temperature selectivity of cabinet. When the temperature is higher in summer, the water cooling system and the air cooling system can be started simultaneously, and quick heat dissipation of the frequency converter cabinet 1 is facilitated.
Further, the heat dissipation assembly 3 comprises a water inlet pipe 31, a water outlet pipe 32 and a plurality of descending pipes 33, wherein the descending pipes 33 are vertically arranged; the inlet pipe 31 is communicated with the top end of each downcomer 33, and the downcomers 33 are communicated with the bottom end of each downcomer 33. In the water cooling system, as shown in fig. 4, the water in the downcomer 33 flows from top to bottom, and the hot air rises from bottom to top, thereby facilitating heat exchange.
Further, a plurality of fins 34 are provided on the downcomer 33. And the radiating fins 34 are strip-shaped plates which are vertically arranged, and the strip-shaped plates are arranged in parallel with the axis of the down pipe 33.
The traditional radiating fins are disc type radiating fins, and the circle centers of the disc type radiating fins are superposed with the axis of the pipeline. The heat sink of this technical scheme does not adopt this structure, as shown in fig. 3, the heat sink 34 of this technical scheme is the bar-shaped plate, and the vertical setting of bar-shaped plate, and the bar-shaped plate sets up with downcomer 33 axis is parallel, and the rising of hot-air is difficult to be blocked to fin 34 like this, reason heat and downcomer 33 carry out cold and hot exchange.
Furthermore, an upper water inlet pipe frame 35 and a lower water outlet pipe frame 36 are respectively arranged at the upper end and the lower end of the downcomer 33, the upper water inlet pipe frame 35 is communicated with the water inlet pipe 31, and the lower water outlet pipe frame 36 is communicated with the water outlet pipe 32.
Because the cooling mode of water cooling and air cooling is adopted in this technical solution, the wind resistance of the cooling component 3 should be reduced as much as possible. The upper water inlet pipe frame 35 and the lower water outlet pipe frame 36 adopt a grid type frame structure, so that the rising of hot air is facilitated, and the air circulation of an air cooling system is also utilized.
Further, the number of the heat dissipation assemblies 3 is two, wherein one heat dissipation assembly 3 is used for introducing circulating water, and the other heat dissipation assembly 3 is used for introducing demineralized water.
The working principle of the whole device is as follows:
the condenser 4 plays a role in refrigeration, the temperature of the water inlet pipe 31 of the heat dissipation component 3 is controlled to be 7-10 ℃, and the flowing water of the circulating cooling water is controlled, so that the temperature of the water outlet pipe 32 is controlled to be 15-20 ℃. By adopting the cooling system, the temperature of the 10KV frequency converter cabinet in a certain glycol project can be controlled to be about 28 ℃, and the cooling effect is obvious. When the temperature is higher in summer, the water cooling system and the air cooling system can be started simultaneously, and quick heat dissipation of the frequency converter cabinet 1 is facilitated. The air cooling system or the water cooling system can be selectively started in other seasons.

Claims (6)

1. The utility model provides a converter cabinet air-water-cooling integral type cooling system which characterized in that: the frequency converter cabinet comprises a shell (2) arranged on the top of a frequency converter cabinet (1), wherein the shell (2) is communicated with the frequency converter cabinet (1), a heat dissipation assembly (3) is arranged in the shell (2), the heat dissipation assembly (3) is communicated with a condenser (4) through a water pipe, and the condenser (4) is used for cooling circulating water in the water pipe; an air exhaust fan (5) is arranged at the top of the shell (2), an air collecting cover (6) is arranged at the top of the air exhaust fan (5), and the air collecting cover (6) is communicated with the air outlet pipe (7).
2. The frequency converter cabinet air-water cooling integrated cooling system according to claim 1, characterized in that: the heat dissipation assembly (3) comprises a water inlet pipe (31), a water outlet pipe (32) and a plurality of descending pipes (33), wherein the descending pipes (33) are arranged vertically; the water inlet pipe (31) is communicated with the top end of each descending pipe (33), and the descending pipes (33) are communicated with the bottom end of each descending pipe (33).
3. The frequency converter cabinet air-water cooling integrated cooling system according to claim 2, characterized in that: the downcomer (33) is provided with a plurality of fins (34).
4. The frequency converter cabinet air-water cooling integrated cooling system according to claim 3, characterized in that: the radiating fins (34) are strip-shaped plates which are vertically arranged, and the strip-shaped plates are arranged in parallel with the axis of the downcomer (33).
5. The inverter cabinet air-water cooling integrated cooling system according to claim 4, characterized in that: an upper water inlet pipe support (35) and a lower water outlet pipe support (36) are respectively arranged at the upper end and the lower end of the downcomer (33), the upper water inlet pipe support (35) is communicated with the water inlet pipe (31), and the lower water outlet pipe support (36) is communicated with the water outlet pipe (32).
6. The frequency converter cabinet air-water cooling integrated cooling system according to claim 1, characterized in that: the number of the heat dissipation assemblies (3) is two, one heat dissipation assembly (3) is used for introducing circulating water, and the other heat dissipation assembly (3) is used for introducing demineralized water.
CN202022227645.2U 2020-10-09 2020-10-09 Air-water cooling integrated cooling system of frequency converter cabinet Active CN213244742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022227645.2U CN213244742U (en) 2020-10-09 2020-10-09 Air-water cooling integrated cooling system of frequency converter cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022227645.2U CN213244742U (en) 2020-10-09 2020-10-09 Air-water cooling integrated cooling system of frequency converter cabinet

Publications (1)

Publication Number Publication Date
CN213244742U true CN213244742U (en) 2021-05-18

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CN202022227645.2U Active CN213244742U (en) 2020-10-09 2020-10-09 Air-water cooling integrated cooling system of frequency converter cabinet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113453512A (en) * 2021-06-30 2021-09-28 武汉港迪电气有限公司 Heat dissipation device and heat dissipation method for frequency conversion cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113453512A (en) * 2021-06-30 2021-09-28 武汉港迪电气有限公司 Heat dissipation device and heat dissipation method for frequency conversion cabinet
CN113453512B (en) * 2021-06-30 2024-05-10 武汉港迪电气有限公司 Heat dissipation device and heat dissipation method for variable frequency cabinet

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