CN102733840A - Mine underground cooling and waste heat recycling system - Google Patents
Mine underground cooling and waste heat recycling system Download PDFInfo
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- CN102733840A CN102733840A CN2012102415626A CN201210241562A CN102733840A CN 102733840 A CN102733840 A CN 102733840A CN 2012102415626 A CN2012102415626 A CN 2012102415626A CN 201210241562 A CN201210241562 A CN 201210241562A CN 102733840 A CN102733840 A CN 102733840A
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Abstract
The invention relates to a mine underground cooling and waste heat recycling system, comprising an air cooler unit, a cooling set unit, a heat pump set unit and a user equipment unit, and a mine return air heat pump system or a cooling tower. According to specific implementation requirements, different combined connections are used for forming multiple heat exchange circulation loops, by the multiple heat exchange circulation loops, the underground high-temperature waste heat is recycled and provided for corresponding user equipment, so that the mine underground cooling is realized, and the requirement on heat usage for production and living of the coal mine is satisfied. The mine underground cooling and waste heat recycling system can be widely used in the mine underground cooling and waste heat recycling process.
Description
Technical field
The present invention relates to a kind of cooling and heat energy recycle system, particularly utilize system about a kind of mine downhole cooling and Waste Heat Recovery.
Background technology
Along with mine is adopted improving constantly of dark increase day by day and mining machinery degree, mine deep-well elevated temperature heat evil has become one of significant problem of restriction safety of coal mines exploitation.The operating efficiency that it not only influences the down-hole employee causes profit or loss of operation, but also can have a strong impact on employee's healthy and life security.At present, the measure of mine cooling mainly contains two kinds of unartificial refrigeration cool-down and artificial cooling coolings.Wherein, to utilize or to increase the form realization of ventilation, this mode has been difficult to satisfy the demand of mine cooling to unartificial refrigeration cool-down now usually; The artificial cooling cooling then need consume greater energy consumption so that cooling load to be provided, and economic benefit is low, and does not meet the requirement of energy-saving and emission-reduction.In addition, the mine cooling heat extraction also need perhaps be provided with means realizations such as cooling tower by mine return air, mine drainage on ground, and some heat requirements just directly are not discharged in the environment through utilizing, and have caused the waste of a part of heat energy, and efficient is not high.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide and a kind ofly can combine the high efficiente callback of mine existing equipment to utilize down-hole used heat resource, producing for the colliery life provides the mine downhole cooling and the Waste Heat Recovery of heat energy to utilize system.
For realizing above-mentioned purpose; The present invention takes following technical scheme: a kind of mine downhole cooling and Waste Heat Recovery are utilized system; It is characterized in that: it comprises air cooler unit, cooling unit unit and the gas-liquid heat exchanger unit that is arranged on the mine down-hole, and is arranged on the aboveground mine return air heat pumping system of mine; Cooling unit unit comprises evaporimeter, condensing apparatus, compressor and expansion valve; The air cooler unit comprises more than one air cooler; Fill refrigerating medium in the heat exchange pipeline of each air cooler; Each heat exchange pipeline is connected in parallel on the main line that is connected with the unit unit evaporator shell of lowering the temperature, and forms the refrigerating medium closed circuit, in the refrigerating medium closed circuit circulation pump is set; In the cooling unit unit; Fill cold-producing medium in the heat exchange pipeline of evaporimeter; And its two ends are connected the housing of condensing apparatus through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Compressor is arranged on the cold-producing medium output channel, and expansion valve is arranged on the defeated return pipe road of cold-producing medium, forms refrigerant circulation loop; The gas-liquid heat-exchange unit is arranged on the mine return airway; Fill cooling medium in its heat exchange pipeline; The two ends of the heat exchange pipeline of gas-liquid heat-exchange unit connect the two ends of the heat exchange pipeline of cooling unit unit condensing apparatus, form the cooling medium closed circuit, in the cooling medium closed circuit circulation pump are set; Mine return air heat pumping system comprises the retention tower that is arranged on mine return airway air outlet place, will and pass to the user from the heat recovery the mine return air that the mine return airway is discharged and use.
Above-mentioned mine return air heat pumping system is a mine return air source heat pump system; It also includes the return air heat exchanger that is arranged on retention tower air outlet top; Be arranged on the collection chamber of retention tower bottom; The collecting-tank that is communicated with return air heat exchanger and collection chamber pipeline constitutes the source pump unit of low-temperature heat source closed circuit and constitutes the user equipment unit of user's heat supply closed circuit with the source pump unit with collecting-tank, and the source pump unit comprises evaporimeter, condensing apparatus, compressor and expansion valve.
Above-mentioned mine return air heat pumping system is a direct expansion formula mine return air source heat pump system; It also includes the external gas-liquid heat exchanger that is arranged on retention tower air outlet top; Constitute the source pump unit of low-temperature heat source closed circuit and constitute the user equipment unit of user's heat supply closed circuit with the source pump unit with external gas-liquid heat exchanger, the source pump unit comprises compressor, built-in gas-liquid heat exchanger and expansion valve.
A kind of mine downhole cooling and Waste Heat Recovery are utilized system, it is characterized in that: it is the multiple heat exchange closed circuit that is made up of air cooler unit, high-low pressure heat exchanger unit, cooling unit unit, cooling tower, source pump unit and user equipment unit; The air cooler unit comprises more than one air cooler, fills refrigerating medium in the heat exchange pipeline of each air cooler; Include evaporimeter, condensing apparatus, compressor and expansion valve in cooling unit unit and the source pump unit; Fill cold-producing medium in the heat exchange pipeline of each evaporimeter; And its two ends are connected the housing of condensing apparatus in the unit unit, place through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; On each cold-producing medium output channel a compressor is set; Each cold-producing medium is provided with an expansion valve on the defeated return pipe road, forms refrigerant circulation loop; The user equipment unit two ends form user's heat supply closed circuit through the two ends of pipeline connection source pump unit condensing apparatus heat exchange pipeline.
Above-mentioned air cooler unit, high-low pressure heat exchanger unit and cooling unit unit are arranged on the mine down-hole, and it is aboveground that cooling tower, source pump unit and user equipment unit are arranged on mine; The heat exchange pipeline of each air cooler is connected in parallel on the main line that is connected with the unit unit evaporator shell of lowering the temperature, and forms the refrigerating medium closed circuit, in the refrigerating medium closed circuit circulation pump is set; Be filled with cooling medium in the heat exchange pipeline of cooling unit unit condensing apparatus, and the input/output terminal of two ends connection high-low pressure heat exchanger unit low-pressure side, form one time the cooling medium closed circuit, in the cooling medium closed circuit circulation pump is set; The high-pressure side of high-low pressure heat exchanger unit is provided with two parallelly connected ports: a pair of port forms secondary cooling medium closed circuit through the input/output terminal of pipeline connection cooling tower, on the secondary cooling medium closed circuit circulation pump is set; Another forms the low-temperature heat source closed circuit to the housing of port through pipeline connection source pump unit evaporimeter, and the low-temperature heat source closed circuit is provided with circulation pump.
Above-mentioned air cooler unit and high-low pressure heat exchanger unit are arranged on the mine down-hole, and it is aboveground that cooling unit unit, cooling tower, source pump unit and user equipment unit are arranged on mine; The be connected in parallel input/output terminal of high-low pressure heat exchanger unit low-pressure side of the heat exchange pipeline of each air cooler forms one time the refrigerating medium closed circuit, in the refrigerating medium closed circuit circulation pump is set; The on high-tension side input/output terminal of high-low pressure heat exchanger unit forms secondary refrigerating medium closed circuit through the housing of pipeline connection cooling unit unit evaporimeter, in the secondary refrigerating medium closed circuit circulation pump is set; Fill cooling medium in the heat exchange pipeline of cooling unit unit condensing apparatus, and two ends are provided with two parallelly connected ports: a pair of port forms the cooling medium closed circuit through the input/output terminal of pipeline connection cooling tower, in the cooling medium closed circuit circulation pump is set; Another forms the low-temperature heat source closed circuit to the housing of port through pipeline connection source pump unit evaporimeter, in the low-temperature heat source closed circuit circulation pump is set.
The present invention is owing to adopt technique scheme; Have the following advantages: 1, the present invention in conjunction with mine existing equipment mine return air heat pumping system or cooling tower, constitutes multiple heat exchange closed circuit with air cooler unit, cooling unit unit, source pump unit and user equipment unit; Thereby the heat that high temperature heat source discharges under the recovery well; Offer corresponding user equipment and use, both realized the purpose of mine cooling, can satisfy the heat demand of using of colliery life production again; Have energy-saving and emission-reduction, the advantage that economic benefit and environmental benefit are high.2, each component units of the present invention can be according to implementing to require to adopt different modes to make up; Various informative flexible; And can combine mine existing equipment such as already installed direct expansion formula mine return air heat pumping system to adjust, difficulty of construction and installation cost are lower.The present invention can be widely used in mine downhole cooling and the Waste Heat Recovery process.
Description of drawings
Fig. 1 is that the system of the embodiment of the invention one forms structural representation;
Fig. 2 is that the system of the embodiment of the invention two forms structural representation;
Fig. 3 is that the system of the embodiment of the invention three forms structural representation;
Fig. 4 is that the system of the embodiment of the invention four forms structural representation.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is carried out detailed description.
Like Fig. 1, shown in Figure 2; Two embodiment that utilize system based on the mine downhole cooling and the Waste Heat Recovery of mine return air heat pumping system; Comprise the air cooler unit 1, cooling unit unit 2 and the gas-liquid heat exchanger unit 3 that are arranged on the mine down-hole, and be arranged on the aboveground mine return air heat pumping system 4 of mine.Wherein, cooling unit unit 2 comprises evaporimeter 21, condensing apparatus 22, compressor 23 and expansion valve 24.
Air cooler unit 1 can be arranged in stope, driving face and the dynamo-electric chamber of mine down-hole; It comprises more than one air cooler 11; Fill refrigerating mediums such as water or hexylene glycol in the heat exchange pipeline of each air cooler 11; Each heat exchange pipeline is connected in parallel on the main line that is connected with unit unit 2 evaporimeters, 21 housings of lowering the temperature, and forms the refrigerating medium closed circuit, is provided with circulation pump 12 in the refrigerating medium closed circuit.
In the cooling unit unit 2; Be filled with cold-producing medium in the heat exchange pipeline of evaporimeter 21; And its two ends are connected the housing of condensing apparatus 22 through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Compressor 23 is arranged on the cold-producing medium output channel, and expansion valve 24 is arranged on the defeated return pipe road of cold-producing medium, forms the refrigerant circulation loop of cooling unit.
Gas-liquid heat-exchange unit 3 is arranged on the mine return airway; Can be direct heat transfer formula or indirect heat exchange formula; Fill cooling medium in its heat exchange pipeline; The two ends of the heat exchange pipeline of gas-liquid heat-exchange unit 3 connect the two ends of the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22, form the cooling medium closed circuit, are provided with circulation pump 31 in the cooling medium closed circuit.
Mine return air heat pumping system 4 in order to reclaiming and supply with like subscriber equipmenies such as heating air conditioning equipment, well head winterized equipment and bath apparatus from the mode of the heat the mine return air that the mine return airway is discharged through the heat exchange circulation; To satisfy the heat demand of using of Coal Production life; This system both can be the mine return air source heat pump system (embodiment one) that includes collecting-tank, also can be the direct expansion formula mine return air source heat pump system (embodiment two) that does not comprise collecting-tank.
Embodiment one (as shown in Figure 1); When mine return air heat pumping system 4 is mine return air source heat pump system; It includes the retention tower 41 that is arranged on mine return airway air outlet place; Be arranged on the return air heat exchanger 42 on retention tower 41 air outlet tops; Be arranged on the collection chamber 43 of retention tower 41 bottoms, the collecting-tank 44 that is communicated with return air heat exchanger 42 and collection chamber 43 pipelines, with collecting-tank 44 constitute the low-temperature heat source closed circuits source pump unit 45 and with the user equipment unit 46 of source pump unit 45 formation user heat supply closed circuits.Wherein, source pump unit 45 comprises evaporimeter 451, condensing apparatus 452, compressor 453 and expansion valve 454.
The method of work of embodiment one is following:
1) refrigerating medium in air cooler 11 heat exchange pipelines and underground air carry out the wet exchange of heat; Behind the airborne heat, under the effect of circulation pump 12, get in the housing of cooling unit unit 2 evaporimeters 21 under the absorption well, after lowering the temperature with the cold-producing medium heat exchange in evaporimeter 21 heat exchange pipelines; Return air cooler 11; Continue to carry out the wet exchange of heat, thereby be the underground air cooling, realize mine downhole cooling function with underground air;
2) after the cold-producing medium in the heat exchange pipeline of cooling unit unit 2 evaporimeters 21 absorbs heat; Be compressed into high temperature and high pressure gas through compressor 23; Get in the housing of condensing apparatus 22, after lowering the temperature with the cooling medium heat exchange in condensing apparatus 22 heat exchange pipelines, again through expansion valve 24 throttlings becoming low-temp low-pressure liquid; In the heat exchange pipeline of Returning evaporimeter 21, continue and the refrigerating medium heat exchange that gets in evaporimeter 21 housings;
3) after the cooling medium in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22 absorbs heat; Get into the gas-liquid heat-exchange 3 on the mine return airway; After the mine return air heat exchange of the gas-liquid heat-exchange 3 of flowing through cooling, under the effect of circulation pump 31 in the heat exchange pipeline of return condensed device 22;
4) retention tower 41 of entering mine return air source heat pump system 4 behind the mine return air absorption heat; Discharge from the air outlet of retention tower 41; Return air heat exchanger 42 through retention tower 41 tops in discharge process carries out heat exchange with the water smoke that sprays; Water smoke imports collecting-tank 44 through collection chamber 43 after absorbing heat; Water in the collecting-tank 44 behind the absorption heat gets under the effect of circulation pump 441 in the housing of source pump unit 45 evaporimeters 451, after lowering the temperature with the cold-producing medium heat exchange in evaporimeter 451 heat exchange pipelines, returns collecting-tank 44; Water in the collecting-tank 44 after the release heat returns under the effect of circulation pump 442 in the return air heat exchanger 42, continues the mine return air heat exchange with process return air heat exchanger 42;
5) after the cold-producing medium in the heat exchange pipeline of source pump unit 45 evaporimeters 451 absorbs heat; Be compressed into high temperature and high pressure gas through compressor 453; Get in the housing of condensing apparatus 452, behind lowering the temperature in condensing apparatus 452 heat exchange pipelines, again through expansion valve 454 throttlings becoming low-temp low-pressure liquid with the water source heat exchange; In the heat exchange pipeline of Returning evaporimeter 451, continue and the water heat exchange that gets in evaporimeter 451 housings;
6) in the heat exchange pipeline of source pump unit 45 condensing apparatuss 452 absorb heat with the water source after; Get into user equipment unit 46; After treating the heat release cooling, under the effect of circulation pump 461, in the heat exchange pipeline of return condensed device 452, continue and the cold-producing medium heat exchange that gets in condensing apparatus 452 housings.
Embodiment two (as shown in Figure 2); When mine return air heat pumping system 4 is direct expansion formula mine return air source heat pump system; It includes the retention tower 41 that is arranged on mine return airway air outlet place; Be arranged on the external gas-liquid heat exchanger 42 on retention tower 41 air outlet tops, constitute the source pump unit 43 of low-temperature heat source closed circuits and constitute the user equipment unit 44 of user's heat supply closed circuits with source pump unit 43 with external gas-liquid heat exchanger 42.Wherein, source pump unit 43 comprises compressor 431, built-in gas-liquid heat exchanger 432 and expansion valve 433.
The method of work of the method for work of embodiment two and embodiment one is basic identical, and just step 4)～step 6) changes following steps 4 into)～step 5):
4) retention tower 41 of entering mine return air source heat pump system 4 behind the mine return air absorption heat; Discharge from the air outlet of retention tower 41; In discharge process with external gas-liquid heat exchanger 42 in refrigeration working medium carry out heat exchange, refrigeration working medium absorbs that the compressor 431 through source pump unit 43 becomes high temperature and high pressure gas behind the heat, gets in the housing of built-in gas-liquid heat exchanger 432; With in built-in gas-liquid heat exchanger 432 heat exchange pipelines with after the water source heat exchange cooling; Through expansion valve 433 throttlings becoming low-temp low-pressure liquid, return external gas-liquid heat exchanger 42 again, continue mine return air heat exchange with the external gas-liquid heat exchanger 42 of process;
5) in the heat exchange pipeline of source pump unit 43 built-in gas-liquid heat exchangers 432 absorb heat with the water source after; Get into user equipment unit 44; After treating the heat release cooling; Under the effect of circulation pump 441, return in the heat exchange pipeline of built-in gas-liquid heat exchanger 432, continue and the refrigeration working medium heat exchange that gets in built-in gas-liquid heat exchanger 432 housings.
Like Fig. 3, shown in Figure 4; The present invention also provides a kind of mine downhole cooling and Waste Heat Recovery based on cooling tower to utilize system; It comprises air cooler unit 1, cooling unit unit 2, high-low pressure heat exchanger unit 3, cooling tower 4, source pump unit 5 and user equipment unit 6.Wherein, cooling unit unit 2 includes evaporimeter, condensing apparatus, compressor and expansion valve with source pump unit 5.This system can adopt two kinds of different embodiment to be combined into multiple heat exchange closed circuit according to the place that is provided with of cooling unit unit 2.
Below in conjunction with accompanying drawing two kinds of embodiments are explained respectively.
Embodiment three (as shown in Figure 3), air cooler unit 1, cooling unit unit 2 and high-low pressure heat exchanger unit 3 are arranged on the mine down-hole, and it is aboveground that cooling tower 4, source pump unit 5 and user equipment unit 6 are arranged on mine.
Air cooler unit 1 can be arranged in stope, driving face and the dynamo-electric chamber of mine down-hole; It comprises more than one air cooler 11; Fill refrigerating mediums such as water or hexylene glycol in the heat exchange pipeline of each air cooler 11; Each heat exchange pipeline is connected in parallel on the main line that is connected with unit unit 2 evaporimeters, 21 housings of lowering the temperature, and forms the refrigerating medium closed circuit, is provided with circulation pump 12 in the refrigerating medium closed circuit.
In the cooling unit unit 2; Be filled with cold-producing medium in the heat exchange pipeline of evaporimeter 21; And its two ends are connected the housing of condensing apparatus 22 through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Compressor 23 is arranged on the cold-producing medium output channel, and expansion valve 24 is arranged on the defeated return pipe road of cold-producing medium, forms the refrigerant circulation loop of cooling unit.
Be filled with cooling medium in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22, and the input/output terminal of two ends connection high-low pressure heat exchanger unit 3 low-pressure sides, form one time the cooling medium closed circuit, be provided with circulation pump 31 in the cooling medium closed circuit.
The high-pressure side of high-low pressure heat exchanger unit 3 is provided with two parallelly connected ports: a pair of port forms secondary cooling medium closed circuit through the input/output terminal of pipeline connection cooling tower 4, and secondary cooling medium closed circuit is provided with circulation pump 32; Another forms the low-temperature heat source closed circuit to the housing of port through pipeline connection source pump unit 5 evaporimeters 51, and the low-temperature heat source closed circuit is provided with circulation pump 33.
In the source pump unit 5; Be filled with cold-producing medium in the heat exchange pipeline of evaporimeter 51; And two ends are connected the housing of condensing apparatus 52 respectively through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Compressor 53 is arranged on the cold-producing medium output channel, and expansion valve 54 is arranged on the defeated return pipe road of cold-producing medium, forms the refrigerant circulation loop of source pump.
User equipment unit 6 can be heating equipment, domestic hot-water's equipment or the pit shaft winterized equipment at interior useful water source; Two ends connect the heat exchange pipeline of source pump unit 5 condensing apparatuss 52 through pipeline; Form user's heat supply closed circuit, user's heat supply closed circuit is provided with circulation pump 61.
The method of work of embodiment three is following:
1) refrigerating medium in air cooler 11 heat exchange pipelines and underground air carry out the wet exchange of heat; Behind the airborne heat, under the effect of circulation pump 12, get in the housing of cooling unit unit 2 evaporimeters 21 under the absorption well, after lowering the temperature with the cold-producing medium heat exchange in evaporimeter 21 heat exchange pipelines; Return air cooler 11; Continue to carry out the wet exchange of heat, thereby be the underground air cooling, realize mine downhole cooling function with underground air;
2) after the cold-producing medium in the heat exchange pipeline of cooling unit unit 2 evaporimeters 21 absorbs heat; Be compressed into high temperature and high pressure gas through compressor 23; Get in the housing of condensing apparatus 22, after lowering the temperature with the cooling medium heat exchange in condensing apparatus 22 heat exchange pipelines, again through expansion valve 24 throttlings becoming low-temp low-pressure liquid; In the heat exchange pipeline of Returning evaporimeter 21, continue and the refrigerating medium heat exchange that gets in evaporimeter 21 housings;
3) after the cooling medium in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22 absorbs heat; Get into the low-pressure side of high-low pressure heat exchanger unit 3; After the 3 on high-tension side cooling medium heat exchange coolings of high-low pressure heat exchanger unit; Under the effect of circulation pump 31, return in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22, continue and the cold-producing medium heat exchange that gets in condensing apparatus 22 housings;
4) after high-low pressure heat exchanger unit 3 on high-tension side cooling mediums absorb heat; Part entering cooling tower 4 under the effect of circulation pump 32; Through returning high-low pressure heat exchanger unit 3 high-pressure sides after the processing that cools, continue to carry out heat exchange with the cooling medium of high-low pressure heat exchanger unit 3 low-pressure sides; Another part then gets in the housing of source pump unit 5 evaporimeters 51 under the effect of circulation pump 33; With return high-low pressure heat exchanger unit 3 high-pressure sides after the cold-producing medium heat exchange cooling in the heat exchange pipeline of evaporimeter 51, continue to carry out heat exchange with the cooling medium of high-low pressure heat exchanger unit 3 low-pressure sides;
5) after the cold-producing medium in the heat exchange pipeline of source pump unit 5 evaporimeters 51 absorbs heat; Be compressed into high temperature and high pressure gas through compressor 53; Get in the housing of condensing apparatus 52, behind lowering the temperature in condensing apparatus 52 heat exchange pipelines, again through expansion valve 54 throttlings becoming low-temp low-pressure liquid with the water source heat exchange; In the heat exchange pipeline of Returning evaporimeter 51, continue and the cooling medium heat exchange that gets in evaporimeter 51 housings;
6) in the heat exchange pipeline of source pump unit 5 condensation pipes 52 absorb heat with the water source after; Get into user equipment unit 6; After treating the heat release cooling, under the effect of circulation pump 61, in the heat exchange pipeline of return condensed device 52, continue and the cold-producing medium heat exchange that gets in condensing apparatus 52 housings.
Embodiment four (as shown in Figure 4), air cooler unit 1 is arranged on the mine down-hole with high-low pressure heat exchanger unit 3, and it is aboveground that cooling unit unit 2, cooling tower 4, source pump unit 5 and user equipment unit 6 are arranged on mine.
Air cooler unit 1 can be arranged in stope, driving face and the dynamo-electric chamber of mine down-hole; It comprises more than one air cooler 11; Fill refrigerating mediums such as water or hexylene glycol in the heat exchange pipeline of each air cooler 11; The be connected in parallel input/output terminal of high-low pressure heat exchanger unit 3 low-pressure sides of each heat exchange pipeline forms one time the refrigerating medium closed circuit, is provided with circulation pump 12 in the refrigerating medium closed circuit.
High-low pressure heat exchanger unit 3 on high-tension side input/output terminals form secondary refrigerating medium closed circuit through the housing of pipeline connection cooling unit unit 2 evaporimeters 21, and secondary refrigerating medium closed circuit is provided with circulation pump 31.
In the cooling unit unit 2; Be filled with cold-producing medium in the heat exchange pipeline of evaporimeter 21; And its two ends are connected the housing of condensing apparatus 22 through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Compressor 23 is arranged on the cold-producing medium output channel, and expansion valve 24 is arranged on the defeated return pipe road of cold-producing medium, forms the refrigerant circulation loop of cooling unit.
Fill cooling medium in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22; And two ends are provided with two parallelly connected ports: a pair of port connects the input/output terminal of cooling tower 4 through pipeline; Form the cooling medium closed circuit, be provided with circulation pump 41 in the cooling medium closed circuit; Another forms the low-temperature heat source closed circuit to the housing of port through pipeline connection source pump unit 5 evaporimeters 51, is provided with circulation pump 25 in the low-temperature heat source closed circuit.
In the source pump unit 5; Be filled with cold-producing medium in the heat exchange pipeline of evaporimeter 51; And two ends are connected the housing of condensing apparatus 52 respectively through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Compressor 53 is arranged on the cold-producing medium output channel, and expansion valve 54 is arranged on the defeated return pipe road of cold-producing medium, forms the refrigerant circulation loop of source pump.
User equipment unit 6 can be heating equipment, domestic hot-water's equipment or the pit shaft winterized equipment at interior useful water source; Two ends connect the two ends of the heat exchange pipeline of source pump unit 5 condensing apparatuss 52 through pipeline; Form user's heat supply closed circuit, user's heat supply closed circuit is provided with circulation pump 61.
The method of work of the method for work of embodiment four and embodiment three is basic identical, and just step 1)～step 4) changes following steps 1 into)～step 4):
1) refrigerating medium in air cooler 11 heat exchange pipelines and underground air carry out the wet exchange of heat; Behind the airborne heat, under the effect of circulation pump 12, get into the low-pressure side of high-low pressure heat exchanger unit 3 under the absorption well, after the 3 on high-tension side refrigerating medium heat exchange coolings of high-low pressure heat exchanger unit; Return air cooler 11; Continue to carry out the wet exchange of heat, thereby be the underground air cooling, realize mine downhole cooling function with underground air;
2) after high-low pressure heat exchanger unit 3 on high-tension side refrigerating mediums absorb heat; Under the effect of circulation pump 31, get in the housing of cooling unit unit 2 evaporimeters 21; After cold-producing medium heat exchange in evaporimeter 21 heat exchange pipelines cooling; Return the high-pressure side of high-low pressure heat exchanger unit 3, continue to carry out heat exchange with the refrigerating medium that gets into high-low pressure heat exchanger unit 3 low-pressure sides;
3) after the cold-producing medium in the heat exchange pipeline of cooling unit unit 2 evaporimeters 21 absorbs heat; Be compressed into high temperature and high pressure gas through compressor 23; Get in the housing of condensing apparatus 22, after lowering the temperature with the cooling medium heat exchange in condensing apparatus 22 heat exchange pipelines, again through expansion valve 24 throttlings becoming low-temp low-pressure liquid; In the heat exchange pipeline of Returning evaporimeter 21, continue and the refrigerating medium heat exchange that gets in evaporimeter 21 housings;
4) after the cooling medium in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22 absorbs heat; A part gets into cooling tower 4; After the processing that cools; Under the effect of circulation pump 41, return in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22, continue and the cold-producing medium heat exchange that gets in condensing apparatus 22 housings; Another part then gets in the housing of source pump unit 5 evaporimeters 51 under the effect of circulation pump 25; After cold-producing medium heat exchange cooling in the heat exchange pipeline of evaporimeter 51; Return in the heat exchange pipeline of cooling unit unit 2 condensing apparatuss 22, continue and the cold-producing medium heat exchange that gets in condensing apparatus 22 housings.
Above-mentioned each embodiment only is used to explain the present invention, and wherein the structure of each parts, connected mode etc. all can change to some extent, and every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (6)
1. mine downhole cooling and Waste Heat Recovery are utilized system, it is characterized in that: it comprises air cooler unit, cooling unit unit and the gas-liquid heat exchanger unit that is arranged on the mine down-hole, and is arranged on the aboveground mine return air heat pumping system of mine; Said cooling unit unit comprises evaporimeter, condensing apparatus, compressor and expansion valve;
Said air cooler unit comprises more than one air cooler; Fill refrigerating medium in the heat exchange pipeline of each said air cooler; Each said heat exchange pipeline is connected in parallel on the main line that is connected with said cooling unit unit evaporator shell; Form the refrigerating medium closed circuit, in the said refrigerating medium closed circuit circulation pump is set;
In the said cooling unit unit; Fill cold-producing medium in the heat exchange pipeline of said evaporimeter; And its two ends are connected the housing of said condensing apparatus through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; Said compressor is arranged on the said cold-producing medium output channel, and said expansion valve is arranged on the defeated return pipe road of said cold-producing medium, forms refrigerant circulation loop;
Said gas-liquid heat-exchange unit is arranged on the mine return airway; Fill cooling medium in its heat exchange pipeline; The two ends of the heat exchange pipeline of said gas-liquid heat-exchange unit connect the two ends of the heat exchange pipeline of said cooling unit unit condensing apparatus; Form the cooling medium closed circuit, in the said cooling medium closed circuit circulation pump is set;
Said mine return air heat pumping system comprises the retention tower that is arranged on said mine return airway air outlet place, will and pass to the user from the heat recovery the mine return air that the mine return airway is discharged and use.
2. mine downhole cooling as claimed in claim 1 and Waste Heat Recovery are utilized system; It is characterized in that: said mine return air heat pumping system is a mine return air source heat pump system; It also includes the return air heat exchanger that is arranged on said retention tower air outlet top; Be arranged on the collection chamber of said retention tower bottom; The collecting-tank that is communicated with said return air heat exchanger and said collection chamber pipeline constitutes the source pump unit of low-temperature heat source closed circuit and constitutes the user equipment unit of user's heat supply closed circuit with said source pump unit with said collecting-tank, and said source pump unit comprises evaporimeter, condensing apparatus, compressor and expansion valve.
3. mine downhole cooling as claimed in claim 1 and Waste Heat Recovery are utilized system; It is characterized in that: said mine return air heat pumping system is a direct expansion formula mine return air source heat pump system; It also includes the external gas-liquid heat exchanger that is arranged on said retention tower air outlet top; Constitute the source pump unit of low-temperature heat source closed circuit and constitute the user equipment unit of user's heat supply closed circuit with said source pump unit with said external gas-liquid heat exchanger, said source pump unit comprises compressor, built-in gas-liquid heat exchanger and expansion valve.
4. mine downhole cooling and Waste Heat Recovery are utilized system, it is characterized in that: it is the multiple heat exchange closed circuit that is made up of air cooler unit, high-low pressure heat exchanger unit, cooling unit unit, cooling tower, source pump unit and user equipment unit;
Said air cooler unit comprises more than one air cooler, fills refrigerating medium in the heat exchange pipeline of each said air cooler;
Include evaporimeter, condensing apparatus, compressor and expansion valve in said cooling unit unit and the said source pump unit; Fill cold-producing medium in the heat exchange pipeline of each said evaporimeter; And its two ends are connected the housing of condensing apparatus described in the unit unit, place through the defeated return pipe road of a cold-producing medium output channel and a cold-producing medium; On each said cold-producing medium output channel a said compressor is set; Each said cold-producing medium is provided with a said expansion valve on the defeated return pipe road, forms refrigerant circulation loop;
Said user equipment unit two ends connect the two ends of said source pump unit condensing apparatus heat exchange pipeline through pipeline, form user's heat supply closed circuit.
5. mine downhole cooling as claimed in claim 4 and Waste Heat Recovery are utilized system; It is characterized in that: said air cooler unit, said high-low pressure heat exchanger unit and said cooling unit unit are arranged on the mine down-hole, and it is aboveground that said cooling tower, said source pump unit and said user equipment unit are arranged on mine;
The heat exchange pipeline of each said air cooler is connected in parallel on the main line that is connected with said cooling unit unit evaporator shell, forms the refrigerating medium closed circuit, in the said refrigerating medium closed circuit circulation pump is set;
Be filled with cooling medium in the heat exchange pipeline of said cooling unit unit condensing apparatus; And two ends connect the input/output terminal of said high-low pressure heat exchanger unit low-pressure side; Form one time the cooling medium closed circuit, in the said cooling medium closed circuit circulation pump is set;
The high-pressure side of said high-low pressure heat exchanger unit is provided with two parallelly connected ports: a pair of port connects the input/output terminal of said cooling tower through pipeline, forms secondary cooling medium closed circuit, on the said secondary cooling medium closed circuit circulation pump is set; Another connects the housing of said source pump unit evaporimeter to port through pipeline, forms the low-temperature heat source closed circuit, and said low-temperature heat source closed circuit is provided with circulation pump.
6. mine downhole cooling as claimed in claim 4 and Waste Heat Recovery are utilized system; It is characterized in that: said air cooler unit and said high-low pressure heat exchanger unit are arranged on the mine down-hole, and it is aboveground that said cooling unit unit, said cooling tower, said source pump unit and said user equipment unit are arranged on mine;
The be connected in parallel input/output terminal of said high-low pressure heat exchanger unit low-pressure side of the heat exchange pipeline of each said air cooler forms one time the refrigerating medium closed circuit, in the said refrigerating medium closed circuit circulation pump is set;
The on high-tension side input/output terminal of said high-low pressure heat exchanger unit connects the housing of said cooling unit unit evaporimeter through pipeline, forms secondary refrigerating medium closed circuit, in the said secondary refrigerating medium closed circuit circulation pump is set;
Fill cooling medium in the heat exchange pipeline of said cooling unit unit condensing apparatus; And two ends are provided with two parallelly connected ports: a pair of port connects the input/output terminal of said cooling tower through pipeline; Form the cooling medium closed circuit, in the said cooling medium closed circuit circulation pump is set; Another connects the housing of said source pump unit evaporimeter to port through pipeline, forms the low-temperature heat source closed circuit, in the said low-temperature heat source closed circuit circulation pump is set.
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| CN104213931A (en) * | 2014-09-17 | 2014-12-17 | 济南国海能源科技有限公司 | Ventilation cooling and residual heat utilization system of mine shaft |
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| CN108050718A (en) * | 2017-12-08 | 2018-05-18 | 北京中煤矿山工程有限公司 | A kind of freezing engineering recycling waste heat recovery system and method |
| CN108506036A (en) * | 2018-03-16 | 2018-09-07 | 江南大学 | A kind of mine cooling and heating system using mine return air heat energy |
| CN108679879A (en) * | 2018-05-18 | 2018-10-19 | 北京清天精创节能设备有限公司 | A kind of medium and high temperature mine Cooling and Heat Source utilization system based on compression heat pump |
| CN108679879B (en) * | 2018-05-18 | 2020-09-11 | 北京清天精创节能设备有限公司 | Compression heat pump-based cold and heat source comprehensive utilization system for medium and high temperature mine |
| CN110094224A (en) * | 2018-08-09 | 2019-08-06 | 北京中矿赛力贝特节能科技有限公司 | A kind of return air residual heat in mine utilizes system and control method |
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| CN110173932A (en) * | 2019-06-17 | 2019-08-27 | 西安科技大学 | A kind of mine waste heat soil source hybrid current limiter |
| CN110822747A (en) * | 2019-11-26 | 2020-02-21 | 辽宁大学 | Deep well geothermal efficient application system |
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