CN102252463B - Screw chiller for underground air conditioner - Google Patents
Screw chiller for underground air conditioner Download PDFInfo
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- CN102252463B CN102252463B CN2011101393131A CN201110139313A CN102252463B CN 102252463 B CN102252463 B CN 102252463B CN 2011101393131 A CN2011101393131 A CN 2011101393131A CN 201110139313 A CN201110139313 A CN 201110139313A CN 102252463 B CN102252463 B CN 102252463B
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Abstract
The invention discloses a screw chiller for an underground air conditioner. The screw water chiller comprises a motor, a compressor, an oil separator, an oil cooler, a condenser, an economizer and an evaporator, wherein the motor and the compressor are arranged on a common base to form a compressor module I; the oil separator, the oil cooler and the economizer are arranged on an oil separator support to form an oil separator module II; the evaporator is arranged on the condenser through the evaporator support to form an evaporating and condensing module III; and the compressor module I, the oil separator module II and the evaporating and condensing module III are in a linear arrangement in the whole, and a connection pipeline between each module has a detachable structure. The screw chiller for the underground air conditioner is large in refrigeration amount, low in cold loss, high in energy efficiency ratio, simple and compact in structure and convenient for underground transportation, installation and maintenance, and can be widely used for underground central temperature reduction for big-and-middle-sized mines.
Description
Technical field
The present invention relates to be used for the refrigeration plant of the centralized cooling in down-hole, refer to a kind of down-hole air-conditioning screw-type water chiller particularly.
Background technology
Owing to receive the influence of underground heat; Increase along with the pit mining degree of depth; Mine temperature is also increasingly high, and the mine temperature below many 500m is up to more than 40 ℃, and China's " mine safety regulations " stipulates: " air themperature of underground labour's operating location must not be higher than 28 ℃ ".According to practical experience, when adopting isolated thermal source can not mine temperature is reduced to below 28 ℃, need to adopt the artificial cooling mode to lower the temperature with the reinforcement venting practice.At present, the artificial cooling cooling measure to mine mainly contains down-hole system of local cooling, ground ice-making system and ground chilled water system etc.
Down-hole system of local cooling utilizes the small movable refrigeration unit that mining face under mine is implemented local cooling.The characteristics of this mode are: refrigeration unit appearance and size is little, simple in structure, installation and moving is convenient, but refrigerating capacity is little, and the condensation heat of refrigeration unit can not in time discharge mine, is only applicable to the working face of small mine is carried out local cooling.
The ground ice-making system is to utilize refrigeration unit to produce flake ice on ground, again flake ice is transported to the down-hole, utilize ice-out for cold water after to working face cooling.The characteristics of this mode are: refrigeration unit is on ground, and appearance and size is not limited by conditions down-hole, is convenient to the unit installation and maintenance, but refrigeration unit moves under the ice making operating mode, and Energy Efficiency Ratio is low.And frozen water is an open cycle, can not reuse, and water waste is comparatively serious.
The ground chilled water system is to utilize refrigeration unit to produce cold water on ground, again cold water is transported to the down-hole, and pressure raise after cold water was transported to the down-hole, need convert high-pressure cold water into low pressure cold water through the high-low pressure heat exchanger, was transported to working face cooling again.The characteristics of this mode are: refrigeration unit is on ground, and appearance and size is not limited by conditions down-hole, is convenient to the unit installation and maintenance; Refrigeration unit Energy Efficiency Ratio under the cold water operating mode than under the ice making operating mode has improved a lot; But need cold water be transported to the down-hole through pipeline, fed distance is far away, and refrigerating loss is bigger.
More than three kinds of downhole cooling systems all brought into play important effect at different mines; But there is the deficiency that refrigerating capacity is little, Energy Efficiency Ratio is low and refrigerating loss is big respectively in they, more and more can not satisfy current requirement to refrigeration plant energy-saving and environmental protection, economy, high-efficient development.How effectively the intrinsic drawback of the traditional downhole cooling of solution system is the difficult problem that those skilled in the art need make great efforts to explore always.
Summary of the invention
The object of the invention will provide exactly that a kind of not only refrigerating capacity is big, cold loss is little, Energy Efficiency Ratio is high, and simple and compact for structure, be convenient to that the down-hole transportation is installed and the down-hole idle call screw-type water chiller of maintenance.
For realizing above-mentioned purpose; The down-hole idle call screw-type water chiller that the present invention designed; Comprise the compressor, oil eliminator, oil cooler, condenser, economizer and the evaporimeter that link to each other with valve through pipeline; Also comprise the motor that is used for Driven Compressor work, its special character is: said motor is installed in a side of public base through support of motor, and said compressor is installed in the opposite side of public base through the compressor bearing; Link to each other through shaft coupling between said motor and the compressor, constitute compressor module I thus.Said oil eliminator is installed on a pair of oil eliminator bearing; Said oil cooler is fixed therein on the oil eliminator bearing through the oil cooler bearing; Said economizer is fixed on another oil eliminator bearing through the economizer bearing, constitutes the oil eliminator module ii thus.Said evaporimeter is installed on the condenser through the evaporimeter bearing, and said condenser is installed on the condensator support saddle, constitutes evaporative condenser module ii I thus.Said compressor module I, oil eliminator module ii and evaporative condenser module ii I be shape layout linearly on the whole, and the connecting line between each said module is dismountable structure.After the present invention adopted above-mentioned modularized design, each module met all that install the down-hole and the dimensional requirement of transportation, can split transportation, on-the-spot dismounting according to the narrow actual state of down-hole passage, use and keep in repair all very convenient.
Further, the Inlet and outlet water mouth of pipe of said condenser adopts flange to be welded on the end cap of condenser bobbin carriage, and the Inlet and outlet water mouth of pipe of said evaporimeter adopts flange to be welded on the end cap of evaporimeter bobbin carriage.Compare with traditional tube connector and flange arrangement, can significantly shorten the overall length of unit, save the down-hole installing space, also make things convenient for the underground component transportation.
Further, the design pressure of the inlet and outlet pipe of said condenser is more than or equal to 12Mpa.Like this, the pressure-bearing of condenser inlet and outlet pipe is high, can bear the ground cooling water at least and be transported to the dark static pressure of down-hole 1000m, thereby satisfy with unit be installed in the down-hole, with the requirement of the surface-based downhole cooling of cooling tower system.
Compare with traditional down-hole system of local cooling, ground ice-making system and ground chilled water system, the present invention has the advantage of following several respects:
One of which, this unit refrigerating capacity is big, and dimensions can satisfy the installation and the movement requirement of large and medium-sized mine, has extensive applicability.
Its two, this unit adopts modularized design, the pipeline of intermodule connects removably, and is simple and compact for structure, is convenient to the down-hole transportation, installs and maintenance.
Its three, this unit is placed on the down-hole, has greatly shortened distance that cooling water carries to working face, can cold loss be reduced to minimum.
Its four, this unit moves under the cold water operating mode, has kept the high characteristics of Energy Efficiency Ratio, meets energy-saving and environmental protection, economy, development trend efficiently.
Description of drawings
Fig. 1 is a kind of main TV structure sketch map of down-hole idle call screw-type water chiller.
Fig. 2 looks the structure for amplifying sketch map for the master of compressor module I among Fig. 1.
Fig. 3 looks the structure for amplifying sketch map for the master of oil eliminator module ii among Fig. 1.
Fig. 4 is the left TV structure sketch map of Fig. 3.
Fig. 5 is the right TV structure sketch map of Fig. 3.
Fig. 6 looks the structure for amplifying sketch map for the master of evaporative condenser module ii I among Fig. 1.
Fig. 7 is the left TV structure sketch map of Fig. 6.
Fig. 8 is the workflow diagram of idle call screw-type water chiller in down-hole shown in Figure 1.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description.
As shown in Figure 1; Idle call screw-type water chiller in down-hole of the present invention; Mainly assembled by compressor module I, oil eliminator module ii and evaporative condenser module ii I, each module is shape layout linearly on the whole, and the connecting line between each module adopts dismountable structure.
As shown in Figure 2, compressor module I comprises motor 20, shaft coupling 21 and compressor 1.Motor 20 is fixed on a side of public base 22 through support of motor 24, and compressor 1 is fixed on the opposite side of public base 22 through compressor bearing 23, links to each other through shaft coupling 21 between motor 20 and the compressor 1.
Shown in Fig. 3～5, the oil eliminator module ii comprises oil eliminator 2, oil cooler 3 and economizer 6.Oil eliminator 2 is fixed on a pair of oil eliminator bearing 26, and oil cooler 3 is fixed therein on the oil eliminator bearing 26 through oil cooler bearing 25, and economizer 6 is fixed on another oil eliminator bearing 26 through economizer bearing 27.
Shown in Fig. 6～7, evaporative condenser module ii I comprises condenser 4 and evaporimeter 9.Evaporimeter 9 is fixed on the condenser 4 through evaporimeter bearing 28, and condenser 4 is fixed on the condensator support saddle 29.
Shown in Fig. 1～8; Between compressor module I and oil eliminator module ii; The exhaust outlet of compressor 1 links to each other with the air inlet of oil eliminator 2 through compressor air-discharging pipeline 10; The economizer gas supplementing opening of compressor 1 links to each other with the low pressure return-air mouth of economizer 6 through economizer return line 13, and the oil-feed port of compressor 1 links to each other with the oil-out of oil cooler 3 through oil feed line 19, and the oil cooler gas supplementing opening of compressor 1 also links to each other with the refrigerant outlet of oil cooler 3 through transfer pipeline 30.More than connect and all adopt detachable structure, can compressor module I and oil eliminator module ii be assembled into one in the down-hole.
Between compressor module I and evaporative condenser module ii I, the air entry of compressor 1 links to each other with the steam output end of evaporimeter 9 through compressor air suction pipeline 14.More than connect and also adopt detachable structure, can compressor module I and evaporative condenser module ii I be assembled into one in the down-hole.
Between oil eliminator module ii and evaporative condenser module ii I, the exhaust outlet of oil eliminator 2 links to each other with the input of condenser 4 through oil eliminator gas exhaust piping 16.The oil export of oil eliminator 2 links to each other with the oil-in of oil cooler 3.The output of condenser 4 is divided into three the tunnel: the first via directly links to each other with the highly pressurised liquid import of economizer 6 through economizer feed flow pipeline 17; The second the tunnel passes through economizer feed flow pipeline 17 links to each other with the low pressure liquid import of economizer 6 with economizer restricting element 7, and Third Road links to each other with the refrigerant inlet of oil cooler restricting element 5 with oil cooler 3 through economizer feed flow pipeline 17.The highly pressurised liquid outlet of economizer 6 links to each other with the liquid input of evaporimeter 9 with evaporimeter restricting element 8 through evaporimeter feed flow pipeline 18.More than connect the same detachable structure that adopts, can oil eliminator module ii and evaporative condenser module ii I be assembled into one in the down-hole.
In the present embodiment, on the connecting line between each module, have additional expansion joint, the cushioning effect of having expanded with heat and contract with cold that causes in the time of like this can be to unit operation also makes things convenient for dismounting and the installation between each module simultaneously.Particularly, compressor air-discharging pipeline 10 is provided with compressor air-discharging pipeline expansion joint 12, and compressor air suction pipeline 14 is provided with compressor air suction pipeline expansion joint 11, and oil eliminator gas exhaust piping 16 is provided with oil eliminator gas exhaust piping expansion joint 15.
In the present embodiment, the Inlet and outlet water mouth of pipe of condenser 4 adopts flange directly to be welded on the two ends end socket of condenser bobbin carriage, and the Inlet and outlet water mouth of pipe of evaporimeter 9 adopts flange directly to be welded on the two ends end socket of evaporimeter bobbin carriage.Like this, can significantly shorten the machine group length, save installing space, be convenient to the down-hole transportation.
In the present embodiment, the design pressure of the inlet and outlet pipe of condenser 4 is 14Mpa.Like this, it can bear the ground cooling water and be transported to the dark static pressure of down-hole 1100m, satisfy with unit be installed in the down-hole, with the requirement of the surface-based downhole cooling of cooling tower system.
Still as shown in Figure 8, the operation principle of idle call screw-type water chiller in down-hole of the present invention is: compressor 1 sucks low-temperature low-pressure refrigerant steam from evaporimeter 9, after being compressed into high-temperature high-pressure refrigerant steam, entering and carries out separating treatment in the oil eliminator 2.
Isolated high-temperature high-pressure refrigerant steam enters into condenser 4 from oil eliminator 2; The water-cooled that the is cooled refrigerant liquid that congeals into, be divided into three the tunnel from the refrigerant liquid of condenser 4 outputs: first via refrigerant liquid directly flows into from the highly pressurised liquid import of economizer 6; The second road refrigerant liquid flows into through the low pressure liquid imports of economizer restricting element 7 back from economizer 6, and the latter absorbs the former heat and explosive evaporation, and the refrigerant gas after the evaporation is transported to the gas supplementing opening of compressor 1; The Third Road refrigerant liquid then gets into oil cooler 3 through oil cooler restricting element 5 backs, in oil cooler 3, absorbs the heat of vaporization of lubricating oil, and the refrigerant vapour after the evaporation also is transported to the gas supplementing opening of compressor 1.Isolated lubricating oil gets in the oil cooler 3 from oil eliminator 2, carry out the heat exchange cooling with the Third Road refrigerant liquid after, be transported to again in the compressor 1, mixes entering in the oil eliminator 2 the completion oil circulation again after being compressed with refrigerant vapour.Meanwhile, first via refrigerant liquid becomes subcooled liquid after the heat release cooling in economizer 6, and subcooled liquid becomes the low-temp low-pressure liquid of saturation state through 8 decompressions of evaporimeter restricting element, and gets into evaporimeter 9.In evaporimeter 9, the heat of this low-temp low-pressure liquid-absorbent cooling water and explosive evaporation, evaporation gained cold-producing medium saturated vapor is compressed machine 1 and sucks, and accomplishes kind of refrigeration cycle.
Easy installation and removal of the present invention can realize to mining face under mine defeated coldly, can discharge the condensation heat of unit simultaneously through the ground cooling tower, have Energy Efficiency Ratio high with the little advantage of cold loss, meet the energy-saving and environmental protection, economy of social promotion, development principle efficiently.
Claims (6)
1. down-hole idle call screw-type water chiller; Comprise the compressor (1), oil eliminator (2), oil cooler (3), condenser (4), economizer (6) and the evaporimeter (9) that link to each other with valve through pipeline; Also comprise the motor (20) that is used for Driven Compressor (1) work, it is characterized in that:
Said motor (20) is installed in a side of public base (22) through support of motor (24); Said compressor (1) is installed in the opposite side of public base (22) through compressor bearing (23); Link to each other through shaft coupling (21) between said motor (20) and the compressor (1), constitute compressor module (I) thus;
Said oil eliminator (2) is installed on a pair of oil eliminator bearing (26); Said oil cooler (3) is fixed therein on the oil eliminator bearing (26) through oil cooler bearing (25); Said economizer (6) is fixed on another oil eliminator bearing (26) through economizer bearing (27), constitutes oil eliminator module (II) thus;
Said evaporimeter (9) is installed on the condenser (4) through evaporimeter bearing (28), and said condenser (4) is installed on the condensator support saddle (29), constitutes evaporative condenser module (III) thus;
Said compressor module (I), oil eliminator module (II) and evaporative condenser module (III) be shape layout linearly on the whole, and the connecting line between each said module is dismountable structure.
2. idle call screw-type water chiller in down-hole according to claim 1 is characterized in that:
Between compressor module (I) and oil eliminator module (II); The exhaust outlet of said compressor (1) links to each other with the air inlet of oil eliminator (2) through compressor air-discharging pipeline (10); The economizer gas supplementing opening of said compressor (1) links to each other with the low pressure return-air mouth of economizer (6) through economizer return line (13), and the oil-feed port of said compressor (1) links to each other with the oil-out of oil cooler (3) through oil feed line (19);
Between compressor module (I) and evaporative condenser module (III), the air entry of said compressor (1) links to each other with the steam output end of evaporimeter (9) through compressor air suction pipeline (14);
Between oil eliminator module (II) and evaporative condenser module (III); The exhaust outlet of said oil eliminator (2) links to each other with the input of condenser (4) through oil eliminator gas exhaust piping (16); The output of said condenser (4) links to each other with the liquid-inlet of economizer (6) through economizer feed flow pipeline (17), and the liquid outlet of said economizer (6) links to each other with the liquid input of evaporimeter (9) through evaporimeter feed flow pipeline (18).
3. idle call screw-type water chiller in down-hole according to claim 2; It is characterized in that: said compressor air-discharging pipeline (10) is provided with compressor air-discharging pipeline expansion joint (12); Said compressor air suction pipeline (14) is provided with compressor air suction pipeline expansion joint (11), and said oil eliminator gas exhaust piping (16) is provided with oil eliminator gas exhaust piping expansion joint (15).
4. according to claim 1 or 2 or 3 described down-hole idle call screw-type water chiller; It is characterized in that: the Inlet and outlet water mouth of pipe of said condenser (4) adopts flange to be welded on the end cap of condenser bobbin carriage, and the Inlet and outlet water mouth of pipe of said evaporimeter (9) adopts flange to be welded on the end cap of evaporimeter bobbin carriage.
5. according to claim 1 or 2 or 3 described down-hole idle call screw-type water chiller, it is characterized in that: the design pressure of the inlet and outlet pipe of said condenser (4) is more than or equal to 12Mpa.
6. idle call screw-type water chiller in down-hole according to claim 4 is characterized in that: the design pressure of the inlet and outlet pipe of said condenser (4) is more than or equal to 12Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101393131A CN102252463B (en) | 2011-05-27 | 2011-05-27 | Screw chiller for underground air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101393131A CN102252463B (en) | 2011-05-27 | 2011-05-27 | Screw chiller for underground air conditioner |
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| CN102252463A CN102252463A (en) | 2011-11-23 |
| CN102252463B true CN102252463B (en) | 2012-10-31 |
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| CN2011101393131A Active CN102252463B (en) | 2011-05-27 | 2011-05-27 | Screw chiller for underground air conditioner |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557621A (en) * | 2013-10-02 | 2014-02-05 | 胡汝杰 | Separable compression condensing unit |
| CN104154688B (en) * | 2014-08-22 | 2016-10-05 | 珠海格力电器股份有限公司 | Flash evaporation and there is its air-conditioning |
| RS64563B1 (en) | 2018-10-12 | 2023-10-31 | Vahterus Oy | Arrangement for use in a vapor-compression refrigeration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3710590A (en) * | 1971-07-19 | 1973-01-16 | Vilter Manufacturing Corp | Refrigerant cooled oil system for a rotary screw compressor |
| JP2001174102A (en) * | 1999-12-13 | 2001-06-29 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| CN2581908Y (en) * | 2002-12-10 | 2003-10-22 | 江苏双良空调设备股份有限公司 | Compression-sorption composite refrigerator set driven by gas engine |
| CN2814264Y (en) * | 2005-09-15 | 2006-09-06 | 葛建民 | Modular cooling water machine set |
| JP2009210248A (en) * | 2008-02-06 | 2009-09-17 | Daikin Ind Ltd | Refrigeration device |
| JP2009257705A (en) * | 2008-04-18 | 2009-11-05 | Daikin Ind Ltd | Refrigerating apparatus |
| CN101858661A (en) * | 2010-05-26 | 2010-10-13 | 广东欧科空调制冷有限公司 | Worm type water-cooled cold water chiller and control method |
| CN202109703U (en) * | 2011-05-27 | 2012-01-11 | 武汉新世界制冷工业有限公司 | Screw-type cooling-water machine set for underground air conditioner |
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