CN203474138U - Cooling device of hoister medium-voltage frequency conversion cabinet - Google Patents
Cooling device of hoister medium-voltage frequency conversion cabinet Download PDFInfo
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- CN203474138U CN203474138U CN201320591418.5U CN201320591418U CN203474138U CN 203474138 U CN203474138 U CN 203474138U CN 201320591418 U CN201320591418 U CN 201320591418U CN 203474138 U CN203474138 U CN 203474138U
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- frequency conversion
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Abstract
The utility model discloses a cooling device of a hoister medium-voltage frequency conversion cabinet. The cooling device is mainly applied to electric control systems of high-power mine hoisters. The cooling device comprises a primary circuit, a heat exchanger, an electronic regulator, a secondary circuit, a frequency conversion unit and a liquid leakage detector, wherein the primary circuit and the secondary circuit are connected through the heat exchanger for water and water heat exchange, the secondary circuit is connected with the frequency conversion unit, the electronic regulator is connected with the primary circuit and used for controlling the circulation mode of primary circuit cooling water, and the liquid leakage detector is disposed at the bottom of the frequency conversion unit and used for detecting whether liquid leaks from a cooling water pipe on cooling fins of the frequency conversion unit in real time. The cooling device has the advantages of being reasonable in structural design, good in heat dissipation effect and capable of meeting the heat dissipation requirement of the hoister medium-voltage frequency conversion cabinet, and improving operation reliability of equipment.
Description
Technical field
The utility model relates to cooling mechanism, is specifically related to a kind of cooling mechanism of high-power gig medium voltage converter cabinet.
Technical background
The current power electronic system for large-scale hoister field, because hoisting power is larger, it is large that internal power electronic power components is operated in PWM pattern self-heating amount, make the temperature rise of equipment itself, good heat radiation is the basis that guarantees device security stable operation, and because the environment of gig work is often more severe, have the existence of dust, corrosion or damp, the cooling mechanism of frequency converter is had higher requirement.The pipeline structure of existing water cooling system is complicated, and cabinet can not seal completely, and cooling performance is not satisfactory, can not meet the requirement of quick heat radiating, affects the normal stable operation of gig equipment.
Utility model content
The technical problems to be solved in the utility model is to provide the cooling mechanism of a kind of good heat radiating, the medium voltage converter that simple in structure, work system is stable.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of cooling mechanism of gig medium voltage converter cabinet, comprise: primary loop, H Exch, electronic regulator, secondary circuit, converter unit and fluidic leak detector, primary loop is connected by H Exch with secondary circuit, carry out water/hydrothermal exchange, secondary circuit is connected with converter unit, and described electronic regulator is connected with primary loop, for controlling the circulation pattern of primary loop cooling water expansion tank.
As preferred version, described primary loop comprises: cooling-water temperature sensor, linear triple valve and outer water cooling plant, between described outer water cooling plant water outlet and the water inlet of linear triple valve, access cooling-water temperature sensor, the water outlet of linear triple valve connects the water inlet of H Exch primary loop end, the water outlet of H Exch primary loop end is connected to outer water cooling plant water inlet together with linear triple valve commutation mouth, forms primary loop.
As preferred version, described secondary circuit comprises: circulation pump and cooling-water temperature sensor, described accesses respectively circulation pump and cooling-water temperature sensor at H Exch secondary returning terminal suction culvert and outlet pipeline, the refrigerant fluid being flowed out by cooling-water temperature sensor is connected to the radiating gill of converter unit by pipeline, then through circulation pump, flow back into H Exch secondary returning terminal, form secondary circuit.
As preferred version, described cooling-water temperature sensor, electronic regulator, linear triple valve and outer water cooling plant form Cryocooler Temperature Closed Loop Control System.
Preferably, in described secondary circuit, the number of circulation pump is two, plays redundancy effect in loop, and two circulation pumps are connected in parallel in the suction culvert of H Exch secondary returning terminal.
Whether preferably, described fluidic leak detector is arranged at the bottom of converter unit, for the cooling water pipe detecting in real time on converter unit radiating gill, have liquid to reveal.
The cooling line of the utility model cooling mechanism is rationally distributed, is convenient to safeguard, by close loop control circuit, can automatically regulate in-cabinet temperature, and good heat dissipation effect has solved the large problem of converter unit cal val in frequency conversion tank effectively.In cabinet, be furnished with leakage detection system in addition, the signal piping situation of leak of liquid whether, prevents because leakage damages power component in real time, improves equipment reliability of operation, meets the gig requirement of safety in production continuously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The cooling mechanism of frequency conversion tank as shown in Figure 1, comprise: primary loop 1, H Exch 4, electronic regulator 9, secondary circuit 6, converter unit 8 and fluidic leak detector 10, primary loop 1 is connected by H Exch 4 with secondary circuit 6, carries out water/hydrothermal exchange.Described primary loop 1 comprises: cooling-water temperature sensor 11, linear triple valve 3 and outer water cooling plant 2, described secondary circuit 6 comprises: circulation pump 5 and cooling-water temperature sensor 7, described electronic regulator 9 is connected with linear triple valve 3, electronic regulator 9 can record the degree of opening that temperature value is controlled the linear triple valve 3 in primary loop 1 automatically in real time according to cooling-water temperature sensor 7 and cooling-water temperature sensor 11, by cooling-water temperature sensor 7 and cooling-water temperature sensor 11, electronic regulator 9, linear triple valve 3 and outer water cooling plant 2, forms Cryocooler Temperature Closed Loop Control System.
Principle of work of the present utility model is: the cooling water expansion tank of primary loop 1 can adopt fresh water, and the cooling system conditioner that secondary circuit 6 injects is the HavolineXLC of concentration 35% and 65% deionized water mixture; First the cooling water expansion tank of primary loop 1 enters H Exch 4 primary loop 1 ends by outer water cooling plant 2 through linear triple valve 3, then in H Exch 4, carry out water/hydrothermal exchange with the cooling system conditioner of secondary circuit 6, outer water cooling plant 2 can be controlled the water temperature that enters H Exch 4 primary loops 1.Thereby from H Exch 4 secondary circuit 6 ends, flow out cooling system conditioners and reach the object of heat radiation by the flow through radiating gill of converter unit 8 of pipeline, then, by circulation pump 5, flow back into H Exch 4 secondary returning terminals, form cooling loop.Two circulation pumps 5 are connected in parallel in the suction culvert of H Exch 4 secondary circuit 6 ends, can accelerate the circulation of secondary circuit 6 cooling system conditioners, reach cooling object fast, and redundancy effect is played in two circulation pump 5 parallel connections.
Linear triple valve 3 is arranged by the actuator being coupling on it, actuator is to be controlled by an electronic regulator 9, and electronic regulator 9 can compare by cooling-water temperature sensor 7 being recorded to the temperature value of Temperature numerical and internal preset the degree of opening of automatic linear adjustment triple valve 3.When cooling-water temperature sensor 7 temperature values surpass preset value, showing cooling abundant not to converter unit 8 power cell devices needs to control the degree of opening that increases linear triple valve 3, increases the flooding velocity of primary loop 1; When cooling-water temperature sensor 7 temperature values are during lower than preset value, need to control the degree of opening that reduces linear triple valve 3, reduce the flooding velocity of primary loop 1.In addition, when because converter unit 8 heat dissipation capacities increase and cause that the numerical value increase of cooling-water temperature sensor 7 is larger in heat or cabinet, while now secondary circuit 6 water temperatures being regulated to the limit of power that exceeds linear triple valve 3 adjustings, system is according to the default thermal drop of secondary circuit 6 water temperatures being regulated to the water temperature of outer water cooling plant 2, by cooling-water temperature sensor 11, detect in real time the temperature value of water inlet, now by outer water cooling plant 2 and linear triple valve 3, match and control temperature and the flow that enters H Exch 4 primary loop 1 end water inlets, realize the water temperature of further controlling secondary circuit 6, guarantee the normal heat radiation of gig frequency conversion tank.
The cooling mechanism of gig medium voltage converter cabinet of the present utility model can effectively solve the large problem of converter plant internal power element heating amount, meet the requirement of gig continuous working, and device internal cooling pipe-line layout is reasonable, compact conformation, be convenient to safeguard, in cabinet, be furnished with leakage detection system, in real time the signal piping situation of leak of liquid whether, prevent because leakage damages power component, improved the safety and reliability of equipment operation.
Above specific embodiment has only been described principal character and the innovative point of this programme.Those skilled in the art should understand, and this programme is not restricted to the described embodiments.Do not departing under the prerequisite of the innovation point and protection domain, this programme also has various variations, and these changes and improvements all will fall in the claimed scope of this programme.The claimed scope of this programme is limited by appending claims and equivalent thereof.
It should be noted that above-described embodiment is in order to illustrate rather than limit the utility model, those skilled in the art can design many optional embodiment under the condition of scope that does not deviate from claims.Word " comprises " and does not get rid of those elements different from the element of listing in claim or step or the existence of step.Word before element " one " or " one " do not get rid of the existence of a plurality of this elements, in enumerating several circuit claims, several can performance by one in these devices, hardware branch is also same, only, because some method is to describe, do not illustrate that the combination of these methods can not be used for making a profit in different dependent claims.
It should be noted that, in this article, such as the relational terms of the first and second grades, be only used for an entity or operation and another entity or operational zone to separate, and not necessarily require or imply these entities or operation between exist any this reality relation or order, and, term " comprises ", " comprise " or any other variant is intended to contain comprising of nonexcludability, thereby make the process that comprises a series of key elements, method, article or equipment not only comprise those key elements, but also comprise other key elements that those are clearly listed, or be also included as this process, method, the key element that article or equipment are intrinsic, term " is connected ", " connection ", " be connected to " or other variants, not only comprise two entities are directly connected, also comprise by thering are useful other entities that improve effect and being indirectly connected.
Claims (6)
1. the cooling mechanism of a gig medium voltage converter cabinet, it is characterized in that: comprising: primary loop, H Exch, electronic regulator, secondary circuit, converter unit and fluidic leak detector, primary loop is connected by H Exch with secondary circuit, carry out water/hydrothermal exchange, secondary circuit is connected with converter unit, described electronic regulator is connected with primary loop, for controlling the circulation pattern of primary loop cooling water expansion tank.
2. the cooling mechanism of frequency conversion tank according to claim 1, it is characterized in that: described primary loop comprises: cooling-water temperature sensor, linear triple valve and outer water cooling plant, between described outer water cooling plant water outlet and the water inlet of linear triple valve, access cooling-water temperature sensor, the water outlet of linear triple valve connects the water inlet of H Exch primary loop end, the water outlet of H Exch primary loop end is connected to outer water cooling plant water inlet together with linear triple valve commutation mouth, forms primary loop.
3. the cooling mechanism of frequency conversion tank according to claim 1 and 2, it is characterized in that: described secondary circuit comprises: circulation pump and cooling-water temperature sensor, described H Exch secondary returning terminal suction culvert and outlet pipeline access respectively circulation pump and cooling-water temperature sensor, the refrigerant fluid being flowed out by cooling-water temperature sensor is connected to the radiating gill of converter unit by pipeline, then through circulation pump, flow back into H Exch secondary returning terminal, form secondary circuit.
4. the cooling mechanism of frequency conversion tank according to claim 3, is characterized in that: described cooling-water temperature sensor, electronic regulator, linear triple valve and outer water cooling plant form Cryocooler Temperature Closed Loop Control System.
5. the cooling mechanism of frequency conversion tank according to claim 3, is characterized in that: in described secondary circuit, the number of circulation pump is two, plays redundancy effect in loop, and two circulation pumps are connected in parallel in the suction culvert of H Exch secondary returning terminal.
6. whether the cooling mechanism of frequency conversion tank according to claim 1, is characterized in that: described fluidic leak detector is arranged at the bottom of converter unit, for the cooling water pipe detecting in real time on converter unit radiating gill, have liquid to reveal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591418.5U CN203474138U (en) | 2013-09-24 | 2013-09-24 | Cooling device of hoister medium-voltage frequency conversion cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591418.5U CN203474138U (en) | 2013-09-24 | 2013-09-24 | Cooling device of hoister medium-voltage frequency conversion cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474138U true CN203474138U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591418.5U Expired - Lifetime CN203474138U (en) | 2013-09-24 | 2013-09-24 | Cooling device of hoister medium-voltage frequency conversion cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN203474138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092282A (en) * | 2017-05-24 | 2017-08-25 | 株洲中车时代电气股份有限公司 | A kind of temperature control method of frequency-charger cabinet |
| CN114482162A (en) * | 2021-12-30 | 2022-05-13 | 太原重工股份有限公司 | Mining excavator |
-
2013
- 2013-09-24 CN CN201320591418.5U patent/CN203474138U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092282A (en) * | 2017-05-24 | 2017-08-25 | 株洲中车时代电气股份有限公司 | A kind of temperature control method of frequency-charger cabinet |
| CN114482162A (en) * | 2021-12-30 | 2022-05-13 | 太原重工股份有限公司 | Mining excavator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200083, Shanghai, Hongkou District water circuit No. 120, west side of the four Patentee after: SHANGHAI HUALING POWER STATION COMPLETE EQUIPMENT CO.,LTD. Address before: 200083, Shanghai, Hongkou District water circuit No. 120, west side of the four Patentee before: SHANGHAI HUALING COMPLETE SETS OF EQUIPMENT FOR POWER STATION Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |