CN201706614U - Air-conditioning system utilizing power consumptive heat of substation transformer - Google Patents
Air-conditioning system utilizing power consumptive heat of substation transformer Download PDFInfo
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- CN201706614U CN201706614U CN2010201074423U CN201020107442U CN201706614U CN 201706614 U CN201706614 U CN 201706614U CN 2010201074423 U CN2010201074423 U CN 2010201074423U CN 201020107442 U CN201020107442 U CN 201020107442U CN 201706614 U CN201706614 U CN 201706614U
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Abstract
The utility model provides an air-conditioning system utilizing power consumptive heat of a substation transformer, which utilizes heat dissipation of transformer equipment to reduce the energy consumption of the air-conditioning system. The air-conditioning system utilizing power consumptive heat of the substation transformer comprises a heat pump air conditioner, and the heat pump air-conditioner comprises a circulating working fluid, a compressor, an outdoor heat exchanger, a thermal expansion throttle valve and an indoor heat exchanger, wherein the compressor, the outdoor heat exchanger, the thermal expansion throttle valve and the indoor heat exchanger are connected in series with the circulating working fluid; an auxiliary heating pipe is communicated between two circulating working fluid pipes which are connected on the outdoor heat exchanger, and is connected in series with a heat exchanger performing heat exchange with heat energy generated by the self consumed power of the transformer.
Description
Technical field
The utility model relates to a kind of air-conditioning system of utilizing the substation transformer power-consumption heat, specifically, be the energy that heats that utilizes transformer copper loss in service and iron loss, when summer, the station new wind of district's air-conditioning system carried out removal moisture drying, to reduce air-conditioning system refrigerating operaton energy consumption; In the time of in the winter time as the supplemental heat source of heat pump air conditioner unit, to improve the energy conserving system of air-conditioning system Energy Efficiency Ratio (COP).
Background technology
The transformer equipment self power consumption penalty that causes because of copper loss and iron loss in service accounts for power transformation power 0.3～4%, and their major parts change heat energy into by electric energy, and the agent that is cooled (wind or transformer oil) is taken the transformer body out of and is lost among the atmospheric environment.The cooling agent oil temperature of discharging after cooling transformer coil and the magnetic core belongs to low-grade heat between 45～80 ℃.
In summer, transformer station many office works place need rely on compression electric air conditioner refrigeration, and the heat that distributes when carrying away electric equipment operation is kept the temperature and humidity of office work environment.Traditional air-conditioning system adopts the method for dehumidification by condensation, needs earlier air to be cooled to dew-point temperature (being lower than indoor wind pushing temperature) and then heat, has caused heat loss again; Secondly, for lower refrigerant temperature (temperature of cold water is generally 7 ℃) is provided, refrigeration machine has to reduce evaporating temperature, thereby the efficient of refrigeration machine is also along with reduction, the basic reason that these problems occur is that the cooling and the dehumidifying of air carried out simultaneously, because cooling mainly is to bear the heat transfer across wall load, solves the sensible heat problem, dehumidifying then mainly is a hot humidity load of bearing new wind of high humidity and the generation of people's evacuator body, solves the latent heat problem; Both process characteristics have the difference of essence.As by present traditional processing method, place it in solution together, then make the energy consumption level of air-conditioning system higher, Energy Efficiency Ratio can only be in lower level.The air-conditioning system composition form of at present common primary air fan-coil system is exactly to utilize a kind of so traditional processing method.
In winter, transformer station has many office works place to need heat supply heating again; Therefore be common equipment at transformer station's heat pump air conditioner (unit).Heat pump air conditioner belongs to prior art, and it comprises cycle fluid and the compressor, outdoor heat exchanger, thermal expansion choke valve, the indoor heat exchanger that are in series with the cycle fluid pipe.When making refrigerating operaton, the cycle fluid of low-temp low-pressure (cold-producing medium) gas is sucked the refrigerant gas of back pressurization becoming HTHP by compressor, the liquid of warm high pressure (heat is taken away by outdoor circulating air) during the refrigerant gas of HTHP heat release in outdoor heat exchanger (passing through condenser condenses) becomes, in the liquid of warm high pressure pass through the liquid that becomes low-temp low-pressure after thermal expansion choke valve (throttle part) the throttling step-down again, the liquid refrigerant of low-temp low-pressure absorbs heat in indoor heat exchanger, and (room air is through the heat exchanger surface cooling that is cooled for the gas that becomes low-temp low-pressure after the evaporation, reach the purpose that indoor temperature is descended), the refrigerant gas of low-temp low-pressure is sucked by compressor again, so circulation.Heat pump air conditioner by the two-position four-way solenoid directional control valve, carries out contrary Carnot cycle when making heating operation, realize heating.
The utility model content
The utility model provides a kind of air-conditioning system of utilizing the substation transformer power-consumption heat, to utilize the heat radiation of transformer equipment, reduces the air-conditioning system energy consumption.
The air-conditioning system of utilizing the substation transformer power-consumption heat of the present utility model, described air-conditioning system comprises heat pump air conditioner, heat pump air conditioner comprises cycle fluid and the compressor, outdoor heat exchanger, thermal expansion choke valve, the indoor heat exchanger that are in series with the cycle fluid pipe, be connected between two cycle fluid pipes on the outdoor heat exchanger and be communicated with auxiliary heating tube, auxiliary heating tube is connected on the heat energy that heats with transformer own loss power to carry out in the heat exchanger of heat exchange.
For above-mentioned air-conditioning system, it also comprises sends into indoor air-supply unit to new wind, and described air-supply unit comprises the solution dehumidification system that is used for new wind is dehumidified, have dehumidifying liquid, dehumidifying liquid pipe; Dehumidifying liquid pipe also is connected in the above-mentioned heat exchanger.Best, it also comprises the new wind evaporimeter of lowering the temperature that is used for after the dehumidifying, and evaporimeter is connected in parallel on the indoor heat exchanger two ends.
For above-mentioned air-conditioning system, described heat exchanger is a surface-type heat exchanger.Surface-type heat exchanger belongs to prior art, and its principle is to allow heating agent or refrigerant flow through the metallic conduit inner chamber, and the MEDIA FLOW that will need to carry out heat exchange with heating agent or refrigerant is crossed the metallic conduit outer wall and carried out the purpose that heat exchange reaches heating or cooling medium.
This air-conditioning system, in summer, employing is separately independently carried out air dewetting and two processes of cooling, the tow taste heat that sheds with transformer equipment is that the thermal source that solution dehumidification system drives is realized the dehumidifying circulation, be used to the system energy consumption of thermic load that dehumidifies in the conventional voltage compressing refrigeration system thereby not only reduced widely, and can improve Energy Efficiency Ratio (COP) level of handpiece Water Chilling Units.In winter, adopt tow taste heat that heat exchanger sheds transformer equipment supplemental heat source, low-temperature heat quantity is added the cycle fluid of air-conditioning unit, and pump into and indoorly use for heating as the heat pump air conditioner unit; Thereby greatly reduce the electric quantity consumption level of heat pump air conditioner unit heating.
The beneficial effects of the utility model are, the thermal source that is used for heating evaporation moisture in summer in the fresh air dehumidification system, with the supplemental heat source of interior heat pump air-conditioning unit heat supply in winter all be that the power of transformer generation in service is from decreasing heat, this part heat is to be discharged into atmospheric environment originally, as the section processes of an own loss of equipment operation.The utility model is used to dehumidifying and heating with it, has not only realized effective utilization of the low-grade heat energy of low temperature, and has saved greatly and be used to handle the electric energy that dehumidifying latent heat load and heating are consumed in the heat pump type air conditioning system.
Secondly, because the solution of dehumidifying problem, make sink temperature level that the cold unit of voltage contraction be used to keep indoor environment temperature provides to reduce to the low temperature (about 7 ℃) that can make new wind water in air branch can dewfall condense and separate like that earlier, and then rise to the temperature levels (being generally 18-20 ℃) of human comfort as traditional air-conditioning.Such one thermal process must a large amount of electric energy of consumption again.As long as native system provides 18-20 ℃ cold water just can be maintained indoor environment temperature level in summer, will improve a lot compared with the Energy Efficiency Ratio (COP) of the unit operation that 7 ℃ of refrigerants must be provided.
Therefore, what the utility model provided is not only one in the power transformation production process, makes electric energy can obtain the new method that multi-level step rationally utilizes; And, also be a new high-efficiency air handling system that all systems of dehumidifying, air-conditioning and heating separate.
Description of drawings
Fig. 1 is the air-conditioning system schematic diagram that utilizes the substation transformer power-consumption heat
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Referring to the air-conditioning system of utilizing the substation transformer power-consumption heat shown in Figure 1, described air-conditioning system comprises heat pump air conditioner and new wind is sent into indoor air-supply unit 8.
Heat pump air conditioner comprises cycle fluid (not shown) and the compressor (circulating pump) 11, outdoor heat exchanger 10, thermal expansion choke valve 15, the indoor heat exchanger 12 that are in series with the cycle fluid pipe.The two ends of auxiliary heating tube 17 are communicated with two cycle fluid pipes on being connected outdoor heat exchanger by two cross valves 16, assist heating tube 17 to pass shell and tube heat exchanger 3.Being connected on the heat energy that heats with transformer own loss power carries out in the heat exchanger of heat exchange.
Air-supply unit 8 comprises the solution dehumidification system that is used for new wind is dehumidified, have dehumidifying liquid (not shown), dehumidifying liquid pipe 18.Solution dehumidification system belongs to prior art, is not described in detail.Be in series with weak solution storage tank 4, weak solution pump 6, concentrated solution jar 5, concentrated solution pump 7 on the dehumidifying liquid pipe 18.Dehumidifying liquid pipe 18 between weak solution pump 6 and concentrated solution jar 5 passes shell and tube heat exchanger 3.
Evaporimeter 9 is connected in parallel on the two ends of indoor heat exchanger 12 by the cycle fluid pipe, and evaporimeter 9 is arranged on to be sent into the new wind after the dehumidifying in the indoor air supply duct, is used for the new wind after the dehumidifying is lowered the temperature.
The transformer oil (not shown) that is used for cooling transformer 1 joins by transformer oil pipe 19 and shell and tube heat exchanger 3.Be in series with forced circulation oil pump 2 on the transformer oil pipe 19.The heat energy that transformer 1 own loss power heats makes transformer oil heat up.
Shell and tube heat exchanger is a kind of surface-type heat exchanger, transmits the two media of heat, and is a kind of in pipe, another kind of in the pipe shell body, carries out the heat transmission by tube wall.In the utility model, transformer oil is promptly flowed through in the pipe shell body of shell and tube heat exchanger 3.
Its course of work is described below.
The subsystem work that dehumidifies summer principle: by the high temperature transformer oil that transformer 1 comes out, in forced circulation oil pump 2 is squeezed into the tube side of shell and tube heat exchanger 3, the heat of transformer oil is passed to dehumidifying liquid, return transformer after the transformer oil cooling.In shell and tube heat exchanger, be heated concentrated dense dehumidifying liquid, rely on concentrated solution pump 7 to enter new blower fan group 8, dense dehumidifying liquid and the new wind facies chance of high humility in new blower fan group adsorb steam in the new wind and become rare dehumidifying liquid and avale and be collected and return weak solution storage tank 4.Remove the humidity load needs according to new blower fan group, rare dehumidifying liquid is pumped into tube side through shell and tube heat exchanger 3 again by weak solution pump 6 and is heated concentratedly, becomes dense dehumidifying liquid after the regeneration and stores up into concentrated solution jar 5 and enter circulation for the second time.And the new wind (dry air) that has been adsorbed moisture cools in evaporimeter 9 and enter room 13 to indoor temperature through outdoor heat exchanger (at this moment using as condenser) 10 cycle fluid of sending here.
Summer heat pump air temperature modification subsystem work principle: heat pump air conditioner is operated in refrigeration mode, and the low temperature cycle fluid that is come by the heat pump air conditioner unit is pumped to indoor heat exchanger (at this moment as evaporimeter usefulness) 12 and evaporimeter 9 through outdoor heat exchanger (at this moment as condenser with) 10 and compressor 11; Finish the air cooling-down regulatory function in the room 13, sent back to again after outdoor heat exchanger 10 freeze again, enter for the second time and circulate by the cycle fluid after the room air heating.At this moment, the chilled water of refrigerating environment needs obtains in evaporimeter.
Finish the cooling to room 13 room airs, the artificial air conditioning of preserving moisture jointly by above-mentioned dehumidifying subsystem and air temperature modification subsystem.
Winter heat pump air conditioner heating system operation principle: heat pump air conditioner is operated in heating mode, high temperature circulation working medium is pumped to indoor heat exchanger (at this moment as condenser with) 12 through outdoor heat exchanger (at this moment as evaporimeter with) 10 and compressor 11, give off heat and be cooled to highly pressurised liquid to indoor, carrying out throttling expansion to thermal expansion choke valve 15 again becomes low pressure liquid inlet chamber external heat exchanger (at this moment as evaporimeter with) 10 to flash to low-pressure steam, after in evaporation process, absorbing the heat in the transformer oil, low-pressure steam enters compressor compresses again and becomes the high pressure-temperature cycle fluid, and so circulation endlessly.At this moment, the hot water of heating environment needs obtains in condenser.The required heat that draws of low pressure refrigerant vapor is then provided by the high temperature oil that transformer comes out, the high temperature oil of coming out by transformer 1, in forced circulation oil pump 2 is squeezed into shell and tube heat exchanger 3, heat is passed to low pressure refrigerant vapor, after being lowered the temperature, transformer oil returns transformer.
In summer, the utility model separates fresh air dehumidification and two processes of dry air cooling of air-conditioning system.The new wind of high humility must be earlier before in inlet chamber through being the removal moisture drying of the solution dehumidification system of dehumidizer with dehumidifying liquid.With the very strong solution of hygroscopicity is after 65 ℃～80 ℃ transformer oil heating that dehumidizer is come by transformer in shell and tube heat exchanger is condensed into dense dehumidifying liquid, to meet with the new wind facies of the high humility of coming in the atmospheric environment; Adsorb its most of moisture light be interpreted as rare dehumidifying liquid and arrange in shell and tube heat exchanger, be heated regeneration.And dried new wind, after the dependence water evaporates discharges wet latent heat, the cycle fluid cooling of sending here through electric power compress air conditioner refrigeration unit reduces temperature to the indoor air temperature level again, deflate after the sensible heat, be introduced into indoorly, independently the solution dehumidification subsystem has been finished dehumidification and temperature adjustment process to new wind thus.
And the adjustment of the air of indoor seasoning, then another subsystem of being made up of the refrigerating circuit of heat pump air conditioner unit is finished.Because the air humidity level in the room air atmospheric environment in relative summer is much lower, the dry air that is, this moment, this subsystem need only be reduced to room temperature suitable operating temperature level, solve the cooling problem of cooling sensible heat, and need not take into account the task of dehumidifying as traditional air-conditioning system, so energy consumption level declines to a great extent.
The utility model in the winter time in, heat pump air conditioner unit cycle fluid can be introduced shell and tube heat exchanger and carry out the processing of additional heat, make cycle fluid be heated intensification, draw and carry the part heat in the transformer high temperature transformer oil (about in the winter time 45～60 ℃), and it is sent into indoor heating by the compression of electric power source pump.Because the air-conditioning unit has utilized this part should enter the production used heat among the atmospheric environment under heating mode and has significantly reduced its operation power consumption.
By the subsystem of above-mentioned solution dehumidification subsystem and the operation of heat pump air conditioner unit refrigeration mode, and many covers such as subsystem system in combination of the heat supply mode of low temperature supplemental heat source and heat pump air conditioner unit operation high-efficiency air-condition entire system that form, that can move in many ways is the novel air conditioning system that the utility model provides.Main contact between these systems, the one, after the air to water heat exchanger that the sub-fraction low-temperature receiver branch that the new wind that is dehumidified in summer will be provided by heat pump air conditioner unit refrigeration system forms cools again in the inlet chamber; The 2nd, after the heat pump air conditioner unit switched to the heat supply running pattern in the winter time, the air-conditioning system cycle fluid must be got in touch with multifunction heat exchanger, formed a supplemental heat source.
Claims (4)
1. utilize the air-conditioning system of substation transformer power-consumption heat, described air-conditioning system comprises heat pump air conditioner, heat pump air conditioner comprises cycle fluid and the compressor, outdoor heat exchanger, thermal expansion choke valve, the indoor heat exchanger that are in series with the cycle fluid pipe, it is characterized in that: be connected between two cycle fluid pipes on the outdoor heat exchanger and be communicated with auxiliary heating tube, auxiliary heating tube is connected on the heat energy that heats with transformer own loss power to carry out in the heat exchanger of heat exchange.
2. air-conditioning system as claimed in claim 1, it also comprises sends into indoor air-supply unit to new wind, and described air-supply unit comprises the solution dehumidification system that is used for new wind is dehumidified, have dehumidifying liquid, dehumidifying liquid pipe; It is characterized in that: dehumidifying liquid pipe also is connected in the above-mentioned heat exchanger.
3. air-conditioning system as claimed in claim 2 it is characterized in that: further comprising the new wind evaporimeter of lowering the temperature that is used for after the dehumidifying, and evaporimeter is connected in parallel on the indoor heat exchanger two ends.
4. as the described arbitrary air-conditioning system of claim 1-3, it is characterized in that: described heat exchanger is a surface-type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201074423U CN201706614U (en) | 2010-01-29 | 2010-01-29 | Air-conditioning system utilizing power consumptive heat of substation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201074423U CN201706614U (en) | 2010-01-29 | 2010-01-29 | Air-conditioning system utilizing power consumptive heat of substation transformer |
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| Publication Number | Publication Date |
|---|---|
| CN201706614U true CN201706614U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201074423U Expired - Lifetime CN201706614U (en) | 2010-01-29 | 2010-01-29 | Air-conditioning system utilizing power consumptive heat of substation transformer |
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| CN (1) | CN201706614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799194B (en) * | 2010-01-29 | 2012-06-27 | 东南大学 | Method for applying transformer power-consumption heat of transformer substation to air-conditioning system and air-conditioning system |
| CN115654770A (en) * | 2022-10-25 | 2023-01-31 | 国网黑龙江省电力有限公司电力科学研究院 | Temperature regulation and control system for supplying heat by using waste heat of transformer |
-
2010
- 2010-01-29 CN CN2010201074423U patent/CN201706614U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799194B (en) * | 2010-01-29 | 2012-06-27 | 东南大学 | Method for applying transformer power-consumption heat of transformer substation to air-conditioning system and air-conditioning system |
| CN115654770A (en) * | 2022-10-25 | 2023-01-31 | 国网黑龙江省电力有限公司电力科学研究院 | Temperature regulation and control system for supplying heat by using waste heat of transformer |
| CN115654770B (en) * | 2022-10-25 | 2023-09-08 | 国网黑龙江省电力有限公司电力科学研究院 | Temperature regulation and control system for heating by utilizing waste heat of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110112 Effective date of abandoning: 20100129 |