CN100559096C - But a kind of water source heat pump units of automatically backwashing sewage water - Google Patents

But a kind of water source heat pump units of automatically backwashing sewage water Download PDF

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Publication number
CN100559096C
CN100559096C CNB2007100649553A CN200710064955A CN100559096C CN 100559096 C CN100559096 C CN 100559096C CN B2007100649553 A CNB2007100649553 A CN B2007100649553A CN 200710064955 A CN200710064955 A CN 200710064955A CN 100559096 C CN100559096 C CN 100559096C
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China
Prior art keywords
evaporimeter
water
valve
motor
driven valve
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CNB2007100649553A
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Chinese (zh)
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CN101275791A (en
Inventor
孟祥君
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同方人工环境有限公司
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Priority to CNB2007100649553A priority Critical patent/CN100559096C/en
Publication of CN101275791A publication Critical patent/CN101275791A/en
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Publication of CN100559096C publication Critical patent/CN100559096C/en

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Abstract

But a kind of water source heat pump units of automatically backwashing sewage water relates to air-conditioning technical field.The present invention includes the Compression Evaporation condensation unit of forming by compressor, condenser, expansion valve, evaporimeter and cross valve.Its design feature is to be serially connected with the filter one, water pump, triple valve and the filter two that are connected with source of sewage on the supply channel of described evaporimeter successively.Be serially connected with the motor-driven valve two that is connected with blowoff basin on the water return pipeline of evaporimeter.Between the import and export of evaporimeter, be connected in parallel to differential pressure pickup.Be connected in parallel to motor-driven valve one between the port of export of the junction of filter two and triple valve and motor-driven valve two, another outlet of triple valve is connected with the entrance point of motor-driven valve two.The top of evaporimeter is provided with blow-off pipe, is equipped with motor-driven valve three on the blow-off pipe.Compare with prior art, the present invention can dwindle the heat transfer temperature difference of heat exchanger directly with industrial wastewater or sewage resource and refrigerant heat exchanger direct heat transfer, has improved the efficient of unit, has reduced equipment cost.

Description

But a kind of water source heat pump units of automatically backwashing sewage water
Technical field
The present invention relates to air-conditioning technical field, but particularly with sewage be the water source heat pump units of water source automatic backwash.
Background technology
Water resource heat pump is to be a kind of pump type heat monoblock type water-water/water-air aircondition that medium carries out the refrigerating/heating circulation with water.Water source heat pump units is a thermal source heating Shi Yishui, is the heat extraction source in when refrigeration with water.With water as the advantage of thermal source be: the thermal capacity of water is big, good heat-transfer, and it is less to transmit the required water yield of certain heat, heat exchanger compact dimensions, the funds that every square metre of construction area is spent be than lacking with air-air heat pump, and can frosting, water temperature changes smaller, and operating condition is stable.Water source heat pump units can be utilized seawater, lake water, river, underground water and underground heat tail water, the most normal use at present be underground water, but whether the groundwater recharge technology is also not really ripe, pollute and destroy all also unpredictable to the groundwater resources of preciousness.Water source heat pump units also can be utilized industrial wastewater, sewage resource, but must increase Intermediate Heat Exchanger when utilizing sewage resource,, so just increase the heat transfer temperature difference of heat exchanger to prevent the corrosion of sewage heat exchanging device, reduce unit efficiency, also increased the cost of unit simultaneously.
Summary of the invention
At above-mentioned the deficiencies in the prior art, but the purpose of this invention is to provide a kind of water source heat pump units of automatically backwashing sewage water.This unit can dwindle the heat transfer temperature difference of heat exchanger directly with industrial wastewater or sewage resource and refrigerant heat exchanger direct heat transfer, has improved the efficient of unit, has reduced equipment cost.
In order to reach above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
But a kind of water source heat pump units of automatically backwashing sewage water, it comprises the Compression Evaporation condensation unit of being made up of compressor, condenser, expansion valve, evaporimeter and cross valve.Condenser and evaporimeter are water-to-water heat exchanger.Its design feature is to be serially connected with the filter one, water pump, triple valve and the filter two that are connected with source of sewage on the supply channel of described evaporimeter successively.Be serially connected with the motor-driven valve two that is connected with blowoff basin on the water return pipeline of evaporimeter.Between the supply channel of evaporimeter and water return pipeline, be connected in parallel to differential pressure pickup.Be connected in parallel to motor-driven valve one between the port of export of the junction of filter two and triple valve and motor-driven valve two, another outlet of triple valve is connected with the entrance point of motor-driven valve two.The top of evaporimeter is provided with blow-off pipe, is equipped with motor-driven valve three on the blow-off pipe.
In above-mentioned water source heat pump units, described condenser and evaporimeter adopt the full-liquid type structure, and heat exchanger tube wherein adopts anticorrosion material copper-nickel alloy, and the end cap at condenser and evaporimeter two ends is built-in with the strong metal of reproducibility.
The present invention compares with prior art owing to adopted above-mentioned structure, has following advantage:
1, can make full use of water resources such as industrial wastewater, sewage, expand the water source scope of water source heat pump system, reduce underground water resource destruction.
2, industrial wastewater and the sewage heat exchanger that can directly enter unit carries out heat exchange, and can not cause corrosion by the heat exchanging device, has reduced heat transfer temperature difference, has improved unit efficiency, and saved equipment cost.
3, the automatic backwash device of heat exchanger side increase can prevent that solid particulate matter forms obstruction in the sewage in heat exchanger.
4, machine set system has been equipped with four-way change-over valve, no matter make refrigeration or heat, the user side water source all need not switch.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Referring to accompanying drawing, the present invention includes the Compression Evaporation condensation unit of forming by compressor 1, condenser 2, expansion valve 10, evaporimeter 4 and cross valve 7.Condenser 2 and evaporimeter 4 are the full-liquid type water-to-water heat exchanger, and heat exchanger tube wherein adopts anticorrosion material copper-nickel alloy, and the end cap at condenser 2 and evaporimeter 4 two ends is built-in with the strong metal of reproducibility.Be serially connected with the filter 1, water pump 9, triple valve 6 and the filter 2 8.2 that are connected with source of sewage on the supply channel of evaporimeter 4 successively.Be serially connected with the motor-driven valve 2 5.2 that is connected with blowoff basin on the water return pipeline of evaporimeter 4.Between the supply channel of evaporimeter 4 and water return pipeline, be connected in parallel to differential pressure pickup 3.Be connected in parallel to motor-driven valve 1 between the port of export of the junction of filter 2 8.2 and triple valve 6 and motor-driven valve 2 5.2, another outlet of triple valve 6 is connected with the entrance point of motor-driven valve 2 5.2.The top of evaporimeter 4 is provided with blow-off pipe, is equipped with motor-driven valve 3 5.3 on the blow-off pipe.
When the present invention used, the cryogenic gaseous cold-producing medium was sucked by compressor 1 inlet valve and 1 compression of compressed machine, becomes high-temperature high-pressure refrigerant gas and enters condenser 2 through cross valve 7.Refrigerant gas is with the terminal heating hot water that produces of heat transferred user, the liquid cold-producing medium drying of HTHP filter removal moisture and impurity wherein from condenser 2 comes out becomes the low-temp low-pressure liquid refrigerant after the expansion valve 10 throttling step-downs of flowing through again and enters evaporimeter 4.In evaporimeter 4, the heat that the low-temp low-pressure liquid refrigerant absorbs circulating water constantly evaporates, and has all become the overheated dry saturated steam of low-temp low-pressure when arriving evaporimeter 4 outlets, and the inlet valve of getting back to compressor 1 through cross valve 7 recycles again.Circulating water in the evaporimeter 4 adopts industrial wastewater or sewage, opens water pump 9, and sewage enters evaporimeter 4 through filter 1, water pump 9, triple valve 6 and filter 2 8.2.When motor-driven valve 2 5.2 unlatchings, when motor-driven valve 1 cuts out, the sewage after the heat exchange is discharged to blowoff basin from the return pipe of evaporimeter 4 through motor-driven valve 2 5.2.
When evaporimeter 4 pipelines take place to stop up, evaporimeter 4 is carried out the automatic backwash blowdown.Open water pump 9, close motor-driven valve 2 5.2.Water enters evaporimeter 4 through filter 1, water pump 9, the bypass of triple valve 6 and the water return pipeline of evaporimeter 4.Open motor-driven valve 1 and motor-driven valve 3 5.3, filter two 8.2 and the motor-driven valve one 5.1 of the sewage one tunnel after flushing is finished on evaporimeter 4 supply channels discharged through the water return pipeline of evaporimeter 4, and another road sewage is directly discharged through motor-driven valve 3 5.3.
The startup of above-mentioned automatic backwash program can detect by differential pressure pickup 3 and transmit pressure change signal, and backwashing function is carried out in the switching of the magnetic valve in the control respective line.Also can carry out the timing backwashing function according to artificial setting-up time.
Certainly the present invention also can be used for refrigeration, only needs conversion cross valve 7, changes the flow direction order of refrigeration machine, can realize that condenser 2 provides refrigeration cold water for user's end.These all belong to prior art, seldom give unnecessary details at this.

Claims (2)

1, but a kind of water source heat pump units of automatically backwashing sewage water, it comprises by compressor (1), condenser (2), expansion valve (10), the Compression Evaporation condensation unit that evaporimeter (4) and cross valve (7) are formed, condenser (2) and evaporimeter (4) are water-to-water heat exchanger, it is characterized in that, be serially connected with the filter one (8.1) that is connected with source of sewage on the supply channel of described evaporimeter (4) successively, water pump (9), triple valve (6) and filter two (8.2), be serially connected with the motor-driven valve two (5.2) that is connected with blowoff basin on the water return pipeline of evaporimeter (4), between the supply channel of evaporimeter (4) and water return pipeline, be connected in parallel to differential pressure pickup (3), between the port of export of the junction of filter two (8.2) and triple valve (6) and motor-driven valve two (5.2), be connected in parallel to motor-driven valve one (5.1), another outlet of triple valve (6) is connected with the entrance point of motor-driven valve two (5.2), the top of evaporimeter (4) is provided with blow-off pipe, is equipped with motor-driven valve three (5.3) on the blow-off pipe.
2, water source heat pump units according to claim 1, it is characterized in that, described condenser (2) and evaporimeter (4) adopt the full-liquid type structure, and heat exchanger tube wherein adopts anticorrosion material copper-nickel alloy, and the end cap at condenser (2) and evaporimeter (4) two ends is built-in with the strong metal of reproducibility.
CNB2007100649553A 2007-03-30 2007-03-30 But a kind of water source heat pump units of automatically backwashing sewage water CN100559096C (en)

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Application Number Priority Date Filing Date Title
CNB2007100649553A CN100559096C (en) 2007-03-30 2007-03-30 But a kind of water source heat pump units of automatically backwashing sewage water

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CN100559096C true CN100559096C (en) 2009-11-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761991A (en) * 2009-12-29 2010-06-30 大连葆光节能空调设备厂 Sewage source heat pump system
CN101776313A (en) * 2009-12-29 2010-07-14 大连葆光节能空调设备厂 Untreated sewage source heat pump system

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CN101936618A (en) * 2010-08-27 2011-01-05 殷尧其 Internal switching water source heat pump unit with heat recovery
CN103017576A (en) * 2012-12-10 2013-04-03 艾普尔换热器(苏州)有限公司 Tube fin type core of heat exchanger and expanded connection method thereof
CN103062958B (en) * 2013-02-07 2015-03-04 江苏新城新能源有限公司 Back washing system
CN103528187A (en) * 2013-09-27 2014-01-22 刘明勇 Sewage source directly-draining type air conditioning heat pump system
CN105180499B (en) * 2015-09-23 2017-11-10 同济大学 A kind of small-sized cleanable earth source heat pump all-in-one
CN110094863A (en) * 2019-04-22 2019-08-06 宁夏医科大学总医院 A kind of reverse flow purging method for cleaning central air-conditioning

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城市污水低位热能回收利用的研究. 吕鑑,冯彦刚.工业用水与废水,第33卷第1期. 2002 *
城市污水热泵在住宅供热中的应用. 李建兴,涂光备,周文忠.流体机械,第32卷第9期. 2004
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761991A (en) * 2009-12-29 2010-06-30 大连葆光节能空调设备厂 Sewage source heat pump system
CN101776313A (en) * 2009-12-29 2010-07-14 大连葆光节能空调设备厂 Untreated sewage source heat pump system

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