CN202361697U - Direct expansion type mine return air source heat pump system - Google Patents

Direct expansion type mine return air source heat pump system Download PDF

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Publication number
CN202361697U
CN202361697U CN2011205096981U CN201120509698U CN202361697U CN 202361697 U CN202361697 U CN 202361697U CN 2011205096981 U CN2011205096981 U CN 2011205096981U CN 201120509698 U CN201120509698 U CN 201120509698U CN 202361697 U CN202361697 U CN 202361697U
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CN
China
Prior art keywords
heat exchanger
heat
return air
mine return
air source
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Expired - Lifetime
Application number
CN2011205096981U
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Chinese (zh)
Inventor
牛永胜
王建学
裴伟
荣金利
赵光明
索金莉
张学玲
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Beijing Kaili Xinyuan Technology Co.,Ltd.
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Beijing Cumt Energy Saving Technology Co Ltd
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Priority to CN2011205096981U priority Critical patent/CN202361697U/en
Application granted granted Critical
Publication of CN202361697U publication Critical patent/CN202361697U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a direct expansion type mine return air source heat pump system which comprises a diffusion tower arranged at an outlet of a mine return air source, the top of the diffusion tower is provided with an air outlet, the upper part of the air outlet is provided with an external gas-liquid heat exchanger, and a refrigerant is filled in the external gas-liquid heat exchanger. A plurality of heat pump assemblies are arranged in a heat pump assembly unit, and each heat pump assembly comprises a built-in heat exchanger, a compressor and an expansion valve, wherein the compressor is provided with a reversing valve. The external gas-liquid heat exchanger is in pipe connection with a shell of the built-in heat exchanger by the compressor and the expansion valve so as to form a refrigerant heat exchange circulating pipeline; and the two ends of a heat exchange pipe in the built-in heat exchanger are respectively connected with an water inlet and a water outlet of a UE (user equipment) unit so as to form a user heat exchange circulating pipeline. The heat pump system disclosed by the utility model can provide heat for the heating, domestic hot water and wellhead antifreezing of coal mine buildings in winter and provide cold flows for air conditioners in summer, and has an effect of energy conservation and emissions reduction.

Description

A kind of direct expansion formula mine return air source heat pump system
Technical field
The utility model relates to a kind of heat pump, particularly about a kind of direct expansion formula mine return air source heat pump system that is used for recycling coal mine return air source low-temperature heat quantity or cold.
Background technology
At present, the building and heating, the pit shaft that need of most domestic colliery industrial site is antifreeze and all be to be provided by coal-burning boiler like the domestic hot-water's of worker's bathing heat energy.This traditional heat-supplying mode has not only consumed a large amount of non-renewable energy resources; Also can discharge the pollutant that a large amount of greenhouse gases etc. are unfavorable for environmental protection simultaneously; Do not meet the policy that China improves energy resource structure and strengthen environmental protection, and the development trend of using the cleaning high-grade energy.
Generally speaking, mine return air amount is sufficient, and it is constant that the temperature in mine return air source, humidity keep throughout the year basically, and therefore, how fully recycling in the coal mine return air source low-temperature heat quantity or cold is an important problem.At present, researched and developed in the correlation technique and aimed at the mine return air source heat pump system that colliery life is produced provides required heat energy or cold.The part but these existing mine return air source heat pump systems all come with some shortcomings; As when the total return air retention tower of former mine and mine return air source heat pump require not to be inconsistent; Need to transform the structure of retention tower; And to design facilities such as the supporting with it underground collecting-tank of return air heat exchange, guiding gutter again, technology is relatively complicated.On the other hand; Existing mine return air source heat pump mostly adopts indirect expansion type; Mine return air heat exchanger separates with evaporator with heat pump to be set up; Connect mine return air heat exchanger and evaporator with heat pump through water or refrigerating medium, in evaporimeter, carry out secondary heat exchange with refrigeration working medium then, this can produce power loss in mine return air-water-refrigeration working medium energy transfer process.
Summary of the invention
To the problems referred to above, it is simple and can effectively reduce the direct expansion formula mine return air source heat pump system of energy loss that the purpose of the utility model provides a kind of technology.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: a kind of direct expansion formula mine return air source heat pump system is characterized in that: it comprises that one is arranged on retention tower, an external liquid suction heat exchanger, a source pump unit and a user equipment unit in exit, mine return air source; The top of retention tower is provided with an air outlet, and the top of air outlet is provided with external liquid suction heat exchanger, is filled with refrigeration working medium in the external liquid suction heat exchanger; According to the heat of external liquid suction heat exchanger, the source pump unit is provided with some source pump, includes a compressor and an expansion valve that an embedded heat exchanger, has reversal valve in each source pump; External liquid suction heat exchanger is connected with the housing pipeline of embedded heat exchanger with expansion valve through compressor, constitutes refrigeration working medium heat exchange circulation line; Heat exchange pipeline two ends in the embedded heat exchanger connect the water inlet and the delivery port of user equipment unit respectively, constitute user's heat exchange circulation line.
Above-mentioned external liquid suction heat exchanger is a heat-tube heat exchanger.
Above-mentioned external liquid suction heat exchanger is the honeycombed sheet type heat exchanger.
Above-mentioned external liquid suction heat exchanger is the panel metal heat exchanger.
Above-mentioned compressor is a scroll compressor.
Above-mentioned compressor is a screw compressor.
Above-mentioned user equipment unit is the air-conditioning equipment with refrigeration and heat-production functions.
The utility model is owing to adopt above technical scheme; It has the following advantages: 1) the refrigeration working medium direct expansion in the external liquid suction heat exchanger of the utility model, carry out heat exchange with mine return air source, and extract low-temperature heat quantity or cold in the mine return air source; By source pump heat or cold are supplied with subscriber equipment again; Need not utilize water or other refrigerating medium secondary heat exchanges, reduce the energy loss in the energy transfer process effectively, improve energy utilization ratio.2) the utility model can switch the reversal valve on the compressor according to heat, refrigeration requirement, makes: during winter operation, external liquid suction heat exchanger extracts the low temperature heat energy in the mine return air as evaporimeter, by source pump low temperature heat energy is supplied with hot user; During summer operation, external liquid suction heat exchanger extracts the low temperature cold in the mine return air as condenser, by source pump the low temperature cold is supplied with air conditioner user, and is useless thereby winter, summers two Ji Junneng recycles coal mine return air effectively.3) the external liquid suction heat exchanger that adopts of the utility model does not have electrical equipment, need not explosion-proofly, does not influence the back lass operation, and security performance is stable.4) only contain embedded heat exchanger, compressor and expansion valve in the source pump that the utility model adopts, compare, reduced volume, the floor space of source pump effectively with the source pump of routine.The utility model can be widely used for the colliery life and produce, and substitutes coal-burning boiler and central air-conditioning, for colliery building winter heating, domestic hot-water and the antifreeze heat that provides of well head, for summer air-conditioning provides cold, has the effect of energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the utility model heating operation pattern diagram
Fig. 2 is the utility model refrigerating operaton pattern diagram
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is carried out detailed description.
As shown in Figure 1, the utility model comprises that one is arranged on mine return air source and exports the external liquid suction heat exchanger of the retention tower 2, at 1 place 3, a source pump unit 4 and a user equipment unit 5.The top of retention tower 2 is provided with an air outlet 21, and the top of air outlet 21 is provided with external liquid suction heat exchanger 3, is filled with refrigeration working medium in the external liquid suction heat exchanger 3.According to the heat of external liquid suction heat exchanger 3, source pump unit 4 can be made up of one or more groups parallelly connected source pump 6, is example with one group among the figure.Include a compressor 8 and an expansion valve 9 that an embedded heat exchanger 7, has reversal valve in each source pump 6.External liquid suction heat exchanger 3 is connected with housing 71 pipelines of embedded heat exchanger 7 with expansion valve 9 through compressor 8, constitutes refrigeration working medium heat exchange circulation line.Heat exchange pipeline 72 two ends in the embedded heat exchanger 7 connect the water inlet and the delivery port of user equipment unit 5 respectively, constitute user's heat exchange circulation line.
In the foregoing description, external liquid suction heat exchanger 3 can be heat-tube heat exchanger, or the honeycombed sheet type heat exchanger, or the panel metal heat exchanger.
In the foregoing description, the compressor 8 in the source pump 6 can adopt scroll compressor, or screw compressor, and compressor 8 is driven by electric energy, and then makes source pump 6 start operation.
In the foregoing description, user equipment unit 5 can be set to have the air-conditioning equipment of refrigeration and heat-production functions.
The operation method of the utility model comprises following two kinds of patterns:
1) heating operation pattern: as shown in Figure 1, when system operated in the heating operation pattern, the external liquid suction heat exchanger 3 of system was as evaporator operation, and the embedded heat exchanger 7 of source pump 6 is as condenser working.Mine return air source at first gets into retention tower 2, discharges from the air outlet 21 of retention tower 2 then, and the refrigeration working medium in discharge process and the external liquid suction heat exchanger 3 carries out heat exchange.Refrigeration working medium absorbs the heat in mine return air source, and evaporation is expanded, and becomes high temperature and high pressure gas through the compressor 8 in the source pump 6 then, gets in the housing 71 of embedded heat exchanger 7.What get into that refrigeration working mediums in the housing 71 need to heat to heat exchange pipeline 72 in uses the water source release heat; And then become the liquid of low-temp low-pressure through expansion valve 9; Return external liquid suction heat exchanger 3, continue and get into the continuous cycle heat exchange in mine return air source of external liquid suction heat exchanger 3.And after the water sources in the heat exchange pipeline of embedded heat exchanger 7 72 obtain heat, can heat be provided for user equipment unit 5, satisfy the heat demand antifreeze etc. like colliery building and heating, domestic hot-water and well head.
2) refrigerating operaton pattern: as shown in Figure 2, when system operated in the refrigerating operaton pattern, the external liquid suction heat exchanger 3 of system was as condenser working, and the embedded heat exchanger 7 in the source pump 6 is as evaporator operation.Mine return air source at first gets into retention tower 2, discharges from the air outlet 21 of retention tower 2 then, and the refrigeration working medium in discharge process and the external liquid suction heat exchanger 3 carries out heat exchange.Refrigeration working medium is to mine return air source release heat, and condensation becomes low-temp low-pressure liquid through the expansion valve 9 in the source pump 6 then, gets in the housing 71 of embedded heat exchanger 7.What the refrigeration working mediums in the entering housing 71 need freeze in heat exchange pipeline 72 absorbs heat with the water source; And then process compressor 8 becomes the gas of HTHP; Return external liquid suction heat exchanger 3, continue and get into the continuous cycle heat exchange in mine return air source of external liquid suction heat exchanger 3.And temperature reduces after the water source release heat in the heat exchange pipeline 72 of embedded heat exchanger 7, thereby can be user equipment unit 5, like the colliery building air conditioning cold is provided.
The transformation of above-mentioned two kinds of patterns is through switching the reversal valve on the compressor 8, changes the flow direction of refrigeration working medium and realizes.
Above-mentioned each embodiment only is used to explain the utility model; Wherein the structure of each parts, connected mode etc. all can change to some extent, every the equivalents of carrying out on the basis of the utility model technical scheme with change outside the protection domain that all should not get rid of at the utility model.

Claims (9)

1. direct expansion formula mine return air source heat pump system, it is characterized in that: it comprises that one is arranged on retention tower, an external liquid suction heat exchanger, a source pump unit and a user equipment unit in exit, mine return air source; The top of said retention tower is provided with an air outlet, and the top of said air outlet is provided with said external liquid suction heat exchanger, is filled with refrigeration working medium in the said external liquid suction heat exchanger; According to the heat of said external liquid suction heat exchanger, said source pump unit is provided with some source pump, includes a compressor and an expansion valve that an embedded heat exchanger, has reversal valve in each said source pump; Said external liquid suction heat exchanger is connected with the housing pipeline of said embedded heat exchanger with said expansion valve through said compressor, constitutes refrigeration working medium heat exchange circulation line; Heat exchange pipeline two ends in the said embedded heat exchanger connect the water inlet and the delivery port of said user equipment unit respectively, constitute user's heat exchange circulation line.
2. a kind of direct expansion formula mine return air source heat pump system as claimed in claim 1, it is characterized in that: said external liquid suction heat exchanger is a heat-tube heat exchanger.
3. a kind of direct expansion formula mine return air source heat pump system as claimed in claim 1, it is characterized in that: said external liquid suction heat exchanger is the honeycombed sheet type heat exchanger.
4. a kind of direct expansion formula mine return air source heat pump system as claimed in claim 1, it is characterized in that: said external liquid suction heat exchanger is the panel metal heat exchanger.
5. like claim 1 or 2 or 3 or 4 described a kind of direct expansion formula mine return air source heat pump systems, it is characterized in that: said compressor is a scroll compressor.
6. like claim 1 or 2 or 3 or 4 described a kind of direct expansion formula mine return air source heat pump systems, it is characterized in that: said compressor is a screw compressor.
7. like claim 1 or 2 or 3 or 4 described a kind of direct expansion formula mine return air source heat pump systems, it is characterized in that: said user equipment unit is the air-conditioning equipment with refrigeration and heat-production functions.
8. a kind of direct expansion formula mine return air source heat pump system as claimed in claim 5 is characterized in that: said user equipment unit is set to have the air-conditioning equipment of refrigeration and heat-production functions.
9. a kind of direct expansion formula mine return air source heat pump system as claimed in claim 6 is characterized in that: said user equipment unit is set to have the air-conditioning equipment of refrigeration and heat-production functions.
CN2011205096981U 2011-12-08 2011-12-08 Direct expansion type mine return air source heat pump system Expired - Lifetime CN202361697U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205096981U CN202361697U (en) 2011-12-08 2011-12-08 Direct expansion type mine return air source heat pump system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205096981U CN202361697U (en) 2011-12-08 2011-12-08 Direct expansion type mine return air source heat pump system

Publications (1)

Publication Number Publication Date
CN202361697U true CN202361697U (en) 2012-08-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103629858A (en) * 2013-12-13 2014-03-12 北京矿大节能科技有限公司 Direct-evaporation-type mine air return source heat pump system with spray dedusting function
CN111059951A (en) * 2019-12-03 2020-04-24 中煤科工集团武汉设计研究院有限公司 Mine ventilation air methane waste heat utilization device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103629858A (en) * 2013-12-13 2014-03-12 北京矿大节能科技有限公司 Direct-evaporation-type mine air return source heat pump system with spray dedusting function
CN103629858B (en) * 2013-12-13 2016-08-17 北京矿大节能科技有限公司 A kind of direct-evaporation-type mine return air source heat pump system of band spraying and dedusting
CN111059951A (en) * 2019-12-03 2020-04-24 中煤科工集团武汉设计研究院有限公司 Mine ventilation air methane waste heat utilization device

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210617

Address after: 100089 no.a-09-59, 4th floor, 89 Xisanhuan North Road, Haidian District, Beijing

Patentee after: Beijing Kaili Xinyuan Technology Co.,Ltd.

Address before: 100083 2 / F, block A2, Zhongguancun energy security science and Technology Park, Haidian District, Beijing

Patentee before: BEIJING CUMT ENERGY CONSERVATION TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20120801

CX01 Expiry of patent term