CN203522503U - Condensation-preventing device of elevator medium-voltage frequency conversion cabinet - Google Patents
Condensation-preventing device of elevator medium-voltage frequency conversion cabinet Download PDFInfo
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- CN203522503U CN203522503U CN201320591419.XU CN201320591419U CN203522503U CN 203522503 U CN203522503 U CN 203522503U CN 201320591419 U CN201320591419 U CN 201320591419U CN 203522503 U CN203522503 U CN 203522503U
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- condensation
- heat exchanger
- pipeline
- temperature sensor
- triple valve
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Abstract
The utility model discloses a condensation-preventing device of an elevator medium-voltage frequency conversion cabinet. The condensation-preventing device is mainly used in a mine elevator electric control system and comprises a primary loop, a secondary loop, a heat exchanger, a frequency conversion unit and a control unit. The primary loop and the secondary loop are connected through the heat exchanger. The heat exchanger is provided with a temperature sensor and a humidity sensor. The secondary loop is connected with a water temperature sensor. The temperature sensor, the humidity sensor, the water temperature sensor, the control unit, a linear three-way valve and the primary loop form a temperature closed-loop control system. The condensation-preventing device of the elevator medium-voltage frequency conversion cabinet has the advantages that the structure is simple, the applicability is high, and condensed water is effectively prevented from being generated outside the pipeline wall of the secondary loop in the cabinet; in addition, by adopting the design of the device, multiple protection measures are provided to prevent the electronic devices from being damaged by the condensed water, so that the safety, the reliability and the stability of the elevator medium-voltage frequency conversion cabinet are effectively improved.
Description
Technical field
The utility model relates to a kind of condensation-proof apparatus, is specifically related to a kind of condensation-proof apparatus of elevator medium voltage converter cabinet.
Technical background
At present, in hoist control system, adopt High Power Medium Voltage Variable Frequency device to control low speed direct connection ac synchronous motor.For power electronic power device in high-power high voltage RHVC, work in PWM pattern, himself caloric value is large, and heat radiation requires high, therefore mostly adopt water cooling system.Due to the difference of ambient temperature in the cooling water water temperature of secondary circuit and cabinet, easily the duct wall at cooling water channel produces condensed water outward.When condensed water is accumulated to a certain degree, can drop onto on the electronic devices and components in cabinet, cause the damage of components and parts, affect the normal operation of converter plant.So, how a kind of cooling device is provided, can meet heat radiation requirement, can prevent again the generation of condensed water, realize the safe and reliable work of elevator frequency conversion system, be the major issue that those skilled in the art need to solve always.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of and can meet the safe and reliable condensation-proof apparatus that heat radiation requires, can avoid again producing in elevator frequency conversion tank condensed water, guarantee the stable normal work of power electronic device.
The utility model is to solve the problems of the technologies described above adopted technical scheme to be: a kind of condensation-proof apparatus of elevator medium voltage converter cabinet, comprise: primary circuit, secondary circuit, heat exchanger, converter unit and control unit, between primary circuit and secondary circuit, by heat exchanger, be connected, described primary circuit is comprised of linear triple valve and pipeline communication, control unit is connected with linear triple valve, for controlling the mode of operation of linear triple valve, linear triple valve delivery port is connected with pipeline with heat exchanger primary circuit end water inlet, heat exchanger primary circuit brings out the mouth of a river and is connected with pipeline with linear triple valve conversion mouthful, described converter unit is provided with temperature sensor and humidity sensor, secondary circuit is connected with cooling-water temperature sensor, described temperature sensor, humidity sensor, cooling-water temperature sensor, control unit, linear triple valve and primary circuit form Cryocooler Temperature Closed Loop Control System.
As preferred version, described secondary circuit is comprised of circulating pump and pipeline communication, and heat exchanger secondary circuit brings out the mouth of a river and is connected with pipeline with converter unit, and heat exchanger secondary returning terminal water inlet is connected with circulating pump, and circulating pump is connected with converter unit.
Preferably, secondary circuit comprises the circulating pump of two parallel redundancys, and described heat exchanger end water inlet connects respectively two circulating pumps with pipeline, and two circulating pumps are connected to power cell with pipeline respectively.
Preferably, the parts that described pipeline is connected with converter unit are the fin being positioned on power cell.
Preferably, described converter unit is medium-pressure frequency conversion device.
Preferably, described pipe laying is along frequency conversion cabinet cabinet angle vertical tile to bottom.
Preferably, described pipeline is made by the nonmetallic materials with effect of heat insulation.
The utility model adopts and forms Cryocooler Temperature Closed Loop Control System by temperature and moisture sensors, control unit, linear triple valve and primary circuit cooling device, and adopt Fuzzy PID, reach secondary circuit water temperature stability is controlled, assurance maintains secondary circuit water temperature and does not tie solidifying state of temperature, reaches the object of condensation-proof when realizing refrigerating function.The utility model reasonable in design, applicability be strong, can effectively prevent that in cabinet, secondary circuit duct wall produces condensed water outward; and the design of device itself has also increased the multinomial safeguard measure that prevents that condensed water from damaging electronic device; can guarantee the normal stable operation of elevator medium voltage converter cabinet.
Accompanying drawing explanation
Fig. 1 is the utility model structure connection diagram
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.As shown in Figure 1, a kind of condensation-proof apparatus of elevator medium voltage converter cabinet, comprising: primary circuit 1, secondary circuit 6, heat exchanger 4, converter unit 7 and control unit 3, be connected by heat exchanger 4 between primary circuit 1 and secondary circuit 6.Described primary circuit 1 is comprised of linear triple valve 2 and pipeline communication, and control unit 3 is connected with linear triple valve 2, for controlling the mode of operation of linear triple valve 2, controls the flow that enters heat exchanger 4 cold water.Linear triple valve 2 delivery ports are connected with pipeline with heat exchanger 4 primary circuit 1 end water inlets, and heat exchanger 4 primary circuits 1 bring out the mouth of a river and are connected with pipeline with linear triple valve 2 conversions mouthful.Described secondary circuit 6 is comprised of circulating pump 5 and pipeline communication, heat exchanger 4 secondary circuits 6 bring out the mouth of a river and are connected with converter unit 7 use pipelines, heat exchanger 4 secondary circuit 6 end water inlets are connected with circulating pump 5, circulating pump 5 is connected with converter unit phase 7, circulating pump 5 can promote the circulation of secondary circuit 6 liquid, and redundancy effect is played in two circulating pump 5 parallel connections.
In cabinet, converter unit 7 arranges respectively environment temperature sensor 8 and humidity sensor 10, at secondary circuit 6, cooling-water temperature sensor 9 is set, by temperature sensor 8, humidity sensor 10, cooling-water temperature sensor 9, control unit 3, linear triple valve 2 and primary circuit 1 cooling device, forms Cryocooler Temperature Closed Loop Control System.
When normal work, control unit 3 is according to in-cabinet temperature transducer 8 and cooling-water temperature sensor 9, and the numerical value that records in real time of humidity sensor 10, make comparisons with its internal preset numerical value, by controlling the degree of opening of linear triple valve 2, control the cold water flow that enters heat exchanger 4 primary circuit ends 1, through the water/hydrothermal exchange with secondary circuit 6 in the interior primary circuit 1 of heat exchanger 4, reach the stable control to secondary circuit 6 water temperatures, secondary circuit 6 water temperatures are maintained and do not tie solidifying state of temperature, when realizing refrigerating function, reach the object of condensation-proof.
When secondary circuit 6 water temperatures regulate the limit of power that exceeds linear triple valve 2 adjustings, system is according to the default temperature gradient of secondary circuit 6 water temperatures being regulated to the water temperature of outer water-cooling system, now by outer water-cooling system and linear triple valve 2, match and control temperature and the flow that enters heat exchanger 4 primary circuit 1 end water inlets, reach the water temperature of further control secondary circuit 6, increased the condensation-proof grade of system.Because temperature control system is a large time delay link, affect the accuracy that system is controlled in real time, adopt Fuzzy PID, can reach satisfied effect.
In addition; the design of device itself has also increased the safeguard measure that prevents that condensed water from damaging electronic device; the pipeline of each unit of connection recited above is by the making of nonmetallic materials with heat-proof quality; and cabinet interior conduit, along cabinet angle vertical tile to bottom, is guaranteed to pipeline is away from electronic device.
The technique effect that the utility model is obtained is: reasonable in design, applicability are strong, can meet the heat radiation requirement of equipment, can prevent that again secondary circuit duct wall from producing condensed water, guarantee the stable normal operation of equipment in medium voltage converter cabinet, meet the requirement of elevator continuous 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 range, 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.
Claims (7)
1. the condensation-proof apparatus of an elevator medium voltage converter cabinet, it is characterized in that: comprising: primary circuit, secondary circuit, heat exchanger, converter unit and control unit, between primary circuit and secondary circuit, by heat exchanger, be connected, primary circuit is comprised of linear triple valve and pipeline communication, control unit is connected with linear triple valve, for controlling the mode of operation of linear triple valve, linear triple valve delivery port is connected with pipeline with heat exchanger primary circuit end water inlet, heat exchanger primary circuit brings out the mouth of a river and is connected with pipeline with linear triple valve conversion mouthful, described converter unit is provided with temperature sensor and humidity sensor, secondary circuit is connected with cooling-water temperature sensor, described temperature sensor, humidity sensor, cooling-water temperature sensor, control unit, linear triple valve and primary circuit form Cryocooler Temperature Closed Loop Control System.
2. condensation-proof apparatus according to claim 1, it is characterized in that: secondary circuit is comprised of circulating pump and pipeline communication, heat exchanger secondary circuit brings out the mouth of a river and is connected with pipeline with converter unit, heat exchanger secondary returning terminal water inlet is connected with circulating pump, and circulating pump is connected with converter unit.
3. condensation-proof apparatus according to claim 2, is characterized in that: secondary circuit comprises the circulating pump of two parallel redundancys, and described heat exchanger end water inlet connects respectively two circulating pumps with pipeline, and two circulating pumps are connected to power cell with pipeline respectively.
4. condensation-proof apparatus according to claim 2, is characterized in that: the parts that described pipeline is connected with converter unit are the fin being positioned on power cell.
5. condensation-proof apparatus according to claim 1, is characterized in that: described converter unit is medium-pressure frequency conversion device.
6. condensation-proof apparatus according to claim 2, is characterized in that: pipe laying is along frequency conversion cabinet cabinet angle vertical tile to bottom.
7. according to the condensation-proof apparatus described in any one in claim 1 to 6, it is characterized in that: described pipeline is made by the nonmetallic materials with effect of heat insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591419.XU CN203522503U (en) | 2013-09-24 | 2013-09-24 | Condensation-preventing device of elevator medium-voltage frequency conversion cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591419.XU CN203522503U (en) | 2013-09-24 | 2013-09-24 | Condensation-preventing device of elevator medium-voltage frequency conversion cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522503U true CN203522503U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591419.XU Expired - Lifetime CN203522503U (en) | 2013-09-24 | 2013-09-24 | Condensation-preventing device of elevator medium-voltage frequency conversion cabinet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411146A (en) * | 2014-12-05 | 2015-03-11 | 珠海格力电器股份有限公司 | Heat dissipation device, system and method |
| CN107741752A (en) * | 2017-11-10 | 2018-02-27 | 科棣姆（上海）电源科技有限公司 | A kind of condensation-proof heater for intermediate frequency plasma power supply |
| CN115877898A (en) * | 2023-01-31 | 2023-03-31 | 山东华宜同创自动化科技有限公司 | Elevator control system |
-
2013
- 2013-09-24 CN CN201320591419.XU patent/CN203522503U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411146A (en) * | 2014-12-05 | 2015-03-11 | 珠海格力电器股份有限公司 | Heat dissipation device, system and method |
| CN107741752A (en) * | 2017-11-10 | 2018-02-27 | 科棣姆（上海）电源科技有限公司 | A kind of condensation-proof heater for intermediate frequency plasma power supply |
| CN115877898A (en) * | 2023-01-31 | 2023-03-31 | 山东华宜同创自动化科技有限公司 | Elevator control system |
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| C14 | Grant of patent or utility model | ||
| 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: 20140402 |
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| CX01 | Expiry of patent term |