CN207219290U - The energy conserving system that coal-fired power plant's condensing-type unit frequency-conversion device room cools - Google Patents
The energy conserving system that coal-fired power plant's condensing-type unit frequency-conversion device room cools Download PDFInfo
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- CN207219290U CN207219290U CN201721302925.7U CN201721302925U CN207219290U CN 207219290 U CN207219290 U CN 207219290U CN 201721302925 U CN201721302925 U CN 201721302925U CN 207219290 U CN207219290 U CN 207219290U
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Abstract
The utility model discloses the energy conserving system that a kind of coal-fired power plant's condensing-type unit frequency-conversion device room cools, and specifically, the energy conserving system includes hot blast area, cold wind area and air-treatment unit；Transducer Room is divided into two spaces up and down by one dividing plate, wherein, upper space is hot blast area, and lower space is cold wind area；Air-treatment unit is located at the outside of Transducer Room, and air-flow handles unit from hot blast area air inlet, enters cold wind area from air-treatment unit, then, with this reciprocation cycle. through frequency converter from cold wind area to hot blast area；Air-treatment unit is double low-temperature receiver units, including recirculated cooling water surface cooler and direct expansion air cooler, and the recirculated cooling water of recirculated cooling water surface cooler spontaneous power plant's condensing-type unit in the future is as refrigerant.The utility model can ensure the temperature of Transducer Room and cleanliness factor reaches service requirement, and reduce the energy consumption of cooling system, save Transducer Room inner area.
Description
Technical field
Coal-fired power plant's Transducer Room air conditioner field is the utility model is related to, relates more specifically to a kind of coal fired power generation
The energy conserving system that factory's condensing-type unit frequency-conversion device room cools.
Background technology
With greatly developing for thermal power plant energy-saving and emission-reduction, converter plant is in primary air fan, overfire air fan, condensate
Using more and more extensive in the equipment such as pump, drainage pump, water circulating pump, Air-Cooling Island blower fan.But converter plant has 2% in operation
~4% or so power consumption can become heat, and these heats exclude not in time, it will and cause frequency converter that overtemperature fault alarm occurs,
Influence the normal operation and service life of equipment.Coal-burning power plant's Transducer Room is typically located at main building region, surrounding air powder
Dustiness dye is more serious, and frequency converter also has very high requirement to the cleanliness factor of air, and dust laden air easily causes frequency-charger cabinet
The blocking of body air inlet and exhaust outlet screen pack, cause ventilation not smooth, raise in-cabinet temperature, equipment overtemperature failure occur.
Therefore, how to provide clean, energy-conservation ventilation cooling device for Transducer Room becomes particularly important.
Heat is drained into outdoor by the blower fan that frequency converter carries in existing Transducer Room cooling technology, air intake is outer by being arranged on
Filtering air port on wall is got in, and the scheme of Transducer Room temperature is reduced by way of general ventilation.This direct current ventilation
Cooling can not ensure the cleanliness factor of Transducer Room, and when outdoor temperature is higher, it is impossible to ensure frequency converter normal operation.Also set
The technical scheme that electric refrigeration air-conditioner cabinet-type air conditioner is cooled down to interior is put, electric refrigeration air-conditioner cabinet-type air conditioner wind pushing temperature is too low to cause frequency conversion
Device control rack inwall air is condensed, and produces potential safety hazard, and electric refrigeration air-conditioner cabinet-type air conditioner is generally run throughout the year, and this will be consumed largely
Electric energy, and electric refrigeration air-conditioner indoor machine arrangement it is usually highly difficult.
Therefore, a kind of new cooling device of frequency converter is badly in need of in this area.
Utility model content
The purpose of this utility model is to provide the section that a kind of coal-fired power plant's condensing-type unit frequency-conversion device room cools
Energy system, the energy conserving system are used as major refrigeration by the use of the recirculated cooling water of coal-fired power plant's condensing-type unit, and joint is directly steamed
Double low-temperature receiver air-treatment units of hairdo aerial cooler system cool down to Transducer Room, and pass through rational air-flow
Organization design, to ensure that the temperature of Transducer Room, cleanliness factor reach service requirement, and reduce cooling system operation energy consumption.
The utility model provides the energy conserving system that a kind of coal-fired power plant's condensing-type unit frequency-conversion device room cools, tool
Body, the energy conserving system includes hot blast area, cold wind area and air-treatment unit；Transducer Room is divided into two up and down by one dividing plate
Space, wherein, upper space is hot blast area, and lower space is cold wind area；Air-treatment unit is located at the outside of Transducer Room, air-flow from
Hot blast area air inlet processing unit, enters cold wind area from air-treatment unit, then, with through frequency converter from cold wind area to hot blast area
This reciprocation cycle；Air-treatment unit is double low-temperature receiver units, including recirculated cooling water surface cooler and the cooling of direct-evaporation-type air
Device, the recirculated cooling water of recirculated cooling water surface cooler spontaneous power plant's condensing-type unit in future is as refrigerant.
In another preference, recirculated cooling water surface cooler is surface-type heat exchanger, and recirculated cooling water passes through water supply line
Recirculated cooling water surface cooler is admitted to, the high temperature steam discharge with coming Self-air-heating area is exchanged heat, and the recirculated cooling water after heating passes through back
Waterpipe flows out.
In another preference, stop valve is equipped with water supply line and water return pipeline, stop valve, which is used to control, to be circulated
The circulation of cooling water.
In another preference, electric control valve is provided with water return pipeline, electric control valve is used to control circulating cooling
The uninterrupted of water.
It is direct expansion air cooler, refrigerant conveying tubes, compression condensation outdoor unit, straight in another preference
Connect evaporation type air cooler and controller forms direct expansion air cooler system, direct expansion air cooler system
System is using refrigerant as refrigerant.
In another preference, refrigerant is entered by direct expansion air cooler with carrying out the high temperature steam discharge in Self-air-heating area
Row heat exchange, the refrigerant after heating is exchanged heat through refrigerant conveying tubes to compression condensation outdoor unit with air, after cooling
Refrigerant is exchanged heat through refrigerant conveying tubes to direct expansion air cooler, is moved in circles with secondary, controller according to
Temperature detection result controls the running status of direct-evaporation-type air cooling system in Transducer Room.
In another preference, the high temperature steam discharge for coming Self-air-heating area first flows through recirculated cooling water surface cooler, passes through directly
Evaporation type air cooler, and energy conserving system, in the state of work, recirculated cooling water surface cooler is operation, is optionally run
Direct expansion air cooler.
In another preference, air-treatment unit includes air cleaner, and air cleaner is used for filtration cycle gas,
And ensure its cleannes.
In another preference, air-treatment unit includes blower fan, and blower fan is used to the gas of cooling delivering to cold wind area.
In another preference, air-flow is from the air port of hot blast area first and airduct air inlet processing unit, and air-flow is from sky
Gas disposal unit enters cold wind area through air-quantity adjusting valve and the second air port, and air-quantity adjusting valve is used to adjust air quantity.
In another preference, the first fire resisting damper is provided between the first air port and airduct, in air-quantity adjusting valve and
The second fire resisting damper is provided between two air ports, fire resisting damper plays fireproof partition.
In another preference, connected between blower fan and the second fire resisting damper by lower air duct, and air-quantity adjusting valve is located at
On lower air duct.
In another preference, dividing plate is non-ignitable thermal-insulation baffle plate.
It should be understood that in the scope of the utility model, above-mentioned each technical characteristic of the present utility model and below (such as implementation
Example) in specifically describe each technical characteristic between can be combined with each other, so as to form new or preferable technical scheme.It is limited to
Length, no longer tire out one by one state herein.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used does and simply introduced in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that the recirculated cooling water using coal-fired power plant's condensing-type unit in one example of the utility model is made mainly
What double low-temperature receiver air-treatment units of low-temperature receiver joint direct expansion air cooler system cooled down to Transducer Room
Energy conserving system structural representation.
In each accompanying drawing, each sign is as follows：
1- air-treatment units；
2- air cleaners；
3- recirculated cooling water surface coolers；
4- direct expansion air coolers；
5- refrigerant lines；
6- compression condensation outdoor units；
7- blower fans；
8- air-quantity adjusting valves；
The air ports of 9a- first；
The air ports of 9b- second；
The fire resisting dampers of 10a- first；
The fire resisting dampers of 10b- second；
11- air channels；
12- not so insulation material furred ceilings；
13- electric control valves；
14- stop valves；
15- water supply lines；
16- water return pipelines.
Embodiment
The present inventor, by largely screening, develops a kind of coal-fired power plant and coagulated first by in-depth study extensively
The energy conserving system that vapour formula unit frequency-conversion device room cools, the utility model are cold using the circulation of coal-fired power plant's condensing-type unit
But water enters as major refrigeration, double low-temperature receiver air-treatment units of joint direct expansion air cooler system to Transducer Room
Row cools, and to ensure that the temperature of Transducer Room, cleanliness factor reach service requirement, and reduces the energy consumption of cooling system, saves
Transducer Room inner area, completes the utility model on this basis.
The utility model provides a kind of recirculated cooling water by the use of coal-fired power plant's condensing-type unit as major refrigeration,
The energy-conservation that double low-temperature receiver air-treatment units of joint direct expansion air cooler system cool down to Transducer Room
System, it is the energy conserving system that a kind of coal-fired power plant's condensing-type unit frequency-conversion device room with specific structure cools, and
By rational Airflow Pattern Designing, to ensure that the temperature of Transducer Room, cleanliness factor reach service requirement, and cooling system is reduced
Energy consumption, save Transducer Room inner area..
Typically, the technical solution adopted in the utility model is：Double low-temperature receiver air-treatment units, air-treatment unit are set
In be provided with air cleaner, recirculated cooling water surface cooler, direct expansion air cooler, refrigerant line, compression condensation
Outdoor unit, pressure fan and control system composition；Transducer Room is isolated into by hot blast as indoor suspended ceiling using non-ignitable insulation material
Area and cold wind area；Air pipe line system is set, including is provided with fire resisting damper, air port, airduct and air-quantity adjusting valve；Set with it is pair cold
The circulating cooling water pipe roadnet that recirculated cooling water surface cooler is connected in source air-treatment unit, including set waterpipe and
The pipe fittings such as stop valve, regulating valve.
The energy conserving system will be isolated into hot blast area and cold above and below Transducer Room using non-ignitable insulation material as indoor suspended ceiling
Wind area.Hot blast is directly entered after double low-temperature receiver air-treatment units are processed into Cryogenic air and is sent into low level cold wind area, and cold wind, which enters, to be become
Frequency device is taken away and is discharged into hot blast area by the automatic air exhausting device of frequency converter after the heat of frequency converter.Set in double low-temperature receiver air-treatment units
The surface cooler and direct expansion air cooler using recirculated cooling water as low-temperature receiver are put.When indoor load is smaller, directly steam
Hairdo aerial cooler system can not be run, and indoor refrigeration duty only has recirculating cooling water system and undertaken.When indoor load is larger, directly
The system combined circulating water cooling system operation of evaporation type air cooler is connect to meet indoor refrigeration duty.
Major advantage of the present utility model includes：
(a) using the Air Distribution of cold and hot subregion, be advantageous to improve drafting efficiency；
(b) major refrigeration is made using the recirculated cooling water of coal-fired power plant's condensing-type unit, has and save operating cost
Benefit
(c) it is arranged in air-treatment unit and direct expansion air cooler is set, for the supplement to high-temperature exhaust air
Cooling, ensure that the reliability of whole system ventilating and cooling；
(d) air-conditioning equipment is not arranged in Transducer Room, has saved the construction area of Transducer Room；
(e) without Leads to new breeze, it ensure that the cleanliness factor of solidifying pump frequency conversion device room.
Therefore, recirculated cooling water of the present utility model have water quality is good, pollution less, low (supply water temperature is general for supply water temperature
Less than 33.5 DEG C) and perennial stream flow ensure the features such as, relative to electric compressor formula refrigeration be a kind of natural cooling source, it is cold using circulating
But water has energy-saving benefit as air-treatment unit low-temperature receiver.When refrigeration duty is higher in Transducer Room, circulating cooling water meter is cold
When device can not meet whole loads, unlatching direct expansion air cooler system, the deficiency of compensation cycle cooling water surface cooler,
So design system is safe and reliable.Direct expansion air cooler system compares traditional electric refrigeration air-conditioner cabinet-type air conditioner scheme, its
Setting capacity is small, and power consumption is small, has energy-conservation, saves the benefit of operating cost.Air filtration is provided with air-treatment unit
Device, and without Leads to new breeze, ensure that the purity requirements in Transducer Room, and this point is for being arranged on electric precipitation region after stove
Transducer Room is even more important.
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, accompanying drawing is schematic diagram, therefore the utility model device and set
Standby is not limited by the size or ratio of the schematic diagram.
It should be noted that in the claim and specification of this patent, such as first and second or the like relation
Term is used merely to make a distinction an entity or operation with another entity or operation, and not necessarily requires or imply
Any this actual relation or order be present between these entities or operation.Moreover, term " comprising ", "comprising" or its
Any other variant is intended to including for nonexcludability so that process, method, article including a series of elements or
Equipment not only includes those key elements, but also the other element including being not expressly set out, or also include for this process,
Method, article or the intrinsic key element of equipment.In the absence of more restrictions, wanted by what sentence " including one " limited
Element, it is not excluded that other identical element in the process including the key element, method, article or equipment also be present.
Embodiment
Energy conserving system described in the present embodiment is as shown in figure 1, it has mainly been formed：Hot blast area, cold wind area, air processing machine
Group (1).Transducer Room is isolated into by hot blast area and cold wind area using non-ignitable insulation material furred ceiling (12).Hot blast area can be used as air draft
Surge tank, sky of the high-temperature exhaust air through the first air port (9a), the first fire resisting damper (10a), air channel (11) and air-treatment unit (1)
Air filter (2) with recirculated cooling water surface cooler (3) and direct expansion air cooler (4) through carrying out heat exchange.Wherein, follow
Ring cooling water surface cooler (3) refrigerant is recirculated cooling water, and direct expansion air cooler (4) interior refrigerant is refrigerant, circulation
Cooling water surface cooler (3) is surface-type heat exchanger, and it is cold that recirculated cooling water by water supply line (15) is admitted to circulating cooling water meter
Device (3), the high temperature steam discharge with coming Self-air-heating area are exchanged heat, and the recirculated cooling water after heating flows out through water return pipeline (16).Its
In, stop valve (14) is equipped with water supply line (15) and water return pipeline (16), for controlling the circulation of recirculated cooling water, and
Electric control valve (13) is provided with water return pipeline (16), for controlling the uninterrupted of recirculated cooling water.Refrigerant passes through straight
Connect evaporation type air cooler (4) to be exchanged heat with the air-flow from recirculated cooling water surface cooler (3), the refrigerant warp after heating
Refrigerant conveying tubes (5) are exchanged heat to compression condensation outdoor unit (6) with air, and the refrigerant after cooling conveys through refrigerant
Pipeline (5) to direct expansion air cooler (4) is exchanged heat, and is moved in circles with secondary.Cryogenic air after heat exchange by
Pressure fan (7), the second fire resisting damper (10b) and the second air port (9b) are sent into Transducer Room, wherein, air quantity can be adjusted by air quantity
Valve (8) is adjusted, and the first fire resisting damper (10a) and the second fire resisting damper (10b) play fireproof partition.Control system is according to interior
Temperature detection result controls the running status of direct-evaporation-type air cooling system.When only recirculated cooling water surface cooler operation can
When ensureing indoor design temperature, direct-evaporation-type air cooling system is in holding state；When recirculated cooling water surface cooler is run
It cannot be guaranteed that during indoor design temperature, the operation of direct-evaporation-type air cooling system combined cycle cooling water surface cooler.
By taking the 10kV Condensate Pump Frequency Conversion devices of 1000MW generating sets as an example, its fully loaded caloric value is 130kW, and power plant follows
Ring water supply water temperature is shown in Table 1.Through calculating, when it is indoor control temperature be 35 DEG C, frequency converter full-load run, cooling water confession/return
When coolant-temperature gage is 31.5/40.5 DEG C, the electric refrigeration air-conditioner cabinet-type air conditioner for being 15HP compared to 4 capacity of configuration, the utility model initial cost
Can save 60,000 yuan, year power consumption can save 385048kWh, energy-saving effect is notable.
The recirculated cooling water supply water temperature of table 1
| Month | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Temperature/DEG C | 15 | 15 | 17.42 | 22.04 | 25.81 | 28.89 | 31.50 | 30.88 | 27.29 | 23.02 | 18.36 | 15 |
To sum up, energy conserving system of the present utility model makees low-temperature receiver using the existing recirculated cooling water of power plant, is not provided with Large Copacity
Electric refrigeration air-conditioner so as to reduce operation power consumption, air-treatment unit is integrally disposed, and arrangement is convenient, saves the interior space.Follow
Ring wind introduces the cleanliness factor that ensure that interior by filtering, no outdoor fresh air.Energy conserving system of the present utility model is particularly suitable for use in
Coal-fired power plant's condensing-type unit frequency-conversion device room cools.
All it is incorporated as referring in this application in all documents that the utility model refers to, just as each document quilt
It is individually recited as with reference to such.In addition, it is to be understood that after above-mentioned instruction content of the present utility model has been read, this area skill
Art personnel can make various changes or modifications to the utility model, and these equivalent form of values equally fall within the application appended claims
Book limited range.
Claims (10)
- A kind of 1. energy conserving system that coal-fired power plant's condensing-type unit frequency-conversion device room cools, it is characterised in that the energy-conservation System includes hot blast area, cold wind area and air-treatment unit；Transducer Room is divided into two spaces up and down by one dividing plate, wherein, upper space is the hot blast area, and lower space is the cold wind Area；The air-treatment unit is located at the outside of the Transducer Room, and air-flow enters the air processing machine from the hot blast area Group, enter the cold wind area from the air-treatment unit, then through frequency converter from the cold wind area to the hot blast area, it is past with this Multiple circulation；The air-treatment unit is double low-temperature receiver units, including recirculated cooling water surface cooler and direct expansion air cooler, The recirculated cooling water of the recirculated cooling water surface cooler spontaneous power plant's condensing-type unit in the future is as refrigerant.
- 2. energy conserving system as claimed in claim 1, it is characterised in that the recirculated cooling water surface cooler exchanges heat for surface-type Device, the recirculated cooling water are admitted to the recirculated cooling water surface cooler by water supply line, with the height from the hot blast area Warm steam discharge is exchanged heat, and the recirculated cooling water after heating flows out through water return pipeline.
- 3. energy conserving system as claimed in claim 2, it is characterised in that be all provided with the water supply line and the water return pipeline There is stop valve, the stop valve is used for the circulation for controlling the recirculated cooling water.
- 4. energy conserving system as claimed in claim 3, it is characterised in that electric control valve, institute are provided with the water return pipeline State the uninterrupted that electric control valve is used to control the recirculated cooling water.
- 5. energy conserving system as claimed in claim 1, it is characterised in that the direct expansion air cooler, refrigerant are defeated Pipeline, compression condensation outdoor unit, direct expansion air cooler and controller is sent to form direct expansion air cooler system System, the direct expansion air cooler system is using refrigerant as refrigerant.
- 6. energy conserving system as claimed in claim 5, it is characterised in that the refrigerant is cold by the direct-evaporation-type air But device is exchanged heat with the high temperature steam discharge from the hot blast area, and the refrigerant after heating is through the refrigerant conveying tubes Exchanged heat to the compression condensation outdoor unit with air, the refrigerant after cooling is through the refrigerant conveying tubes to institute State direct expansion air cooler to be exchanged heat, moved in circles with secondary, the controller is according to temperature detection in Transducer Room As a result the running status of the direct-evaporation-type air cooling system is controlled.
- 7. energy conserving system as claimed in claim 1, it is characterised in that the high temperature steam discharge from the hot blast area first flows through described Recirculated cooling water surface cooler, passes through the direct expansion air cooler, and the energy conserving system is in the state of work, The recirculated cooling water surface cooler is operation, optionally runs the direct expansion air cooler.
- 8. energy conserving system as claimed in claim 1, it is characterised in that the air-treatment unit includes air cleaner.
- 9. energy conserving system as claimed in claim 1, it is characterised in that the air-flow is from the air port of hot blast area first and wind Pipe enters the air-treatment unit, and the air-flow enters from the air-treatment unit through air-quantity adjusting valve and the second air port The cold wind area.
- 10. energy conserving system as claimed in claim 9, it is characterised in that be provided between first air port and the airduct First fire resisting damper, the second fire resisting damper is provided between the air-quantity adjusting valve and second air port.
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| CN201721302925.7U CN207219290U (en) | 2017-10-10 | 2017-10-10 | The energy conserving system that coal-fired power plant's condensing-type unit frequency-conversion device room cools |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721302925.7U CN207219290U (en) | 2017-10-10 | 2017-10-10 | The energy conserving system that coal-fired power plant's condensing-type unit frequency-conversion device room cools |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152284A (en) * | 2018-08-23 | 2019-01-04 | 珠海格力电器股份有限公司 | A kind of cooling device and control method of frequency converter |
| CN109347307A (en) * | 2018-10-31 | 2019-02-15 | 中冶焦耐(大连)工程技术有限公司 | A kind of system and method efficiently cooled down for high-voltage frequency converter cabinet |
| CN112135478A (en) * | 2020-09-07 | 2020-12-25 | 中铝矿业有限公司 | Energy-conserving high-voltage inverter cooling system |
| CN113193702A (en) * | 2021-04-29 | 2021-07-30 | 中国华能集团清洁能源技术研究院有限公司 | Dragging motor coupling cooling system and method |
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2017
- 2017-10-10 CN CN201721302925.7U patent/CN207219290U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152284A (en) * | 2018-08-23 | 2019-01-04 | 珠海格力电器股份有限公司 | A kind of cooling device and control method of frequency converter |
| CN109152284B (en) * | 2018-08-23 | 2024-02-09 | 珠海格力电器股份有限公司 | Cooling device and control method of frequency converter |
| CN109347307A (en) * | 2018-10-31 | 2019-02-15 | 中冶焦耐(大连)工程技术有限公司 | A kind of system and method efficiently cooled down for high-voltage frequency converter cabinet |
| CN109347307B (en) * | 2018-10-31 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | System and method for high-efficiency cooling of high-voltage frequency converter cabinet |
| CN112135478A (en) * | 2020-09-07 | 2020-12-25 | 中铝矿业有限公司 | Energy-conserving high-voltage inverter cooling system |
| CN112135478B (en) * | 2020-09-07 | 2023-01-31 | 中铝矿业有限公司 | Energy-conserving high-voltage inverter cooling system |
| CN113193702A (en) * | 2021-04-29 | 2021-07-30 | 中国华能集团清洁能源技术研究院有限公司 | Dragging motor coupling cooling system and method |
| CN113193702B (en) * | 2021-04-29 | 2022-11-15 | 中国华能集团清洁能源技术研究院有限公司 | Dragging motor coupling cooling system and method |
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