CN201331206Y - Internal-switched large-scale screw type water-ground source heat pump unit - Google Patents
Internal-switched large-scale screw type water-ground source heat pump unit Download PDFInfo
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- CN201331206Y CN201331206Y CNU2008201577726U CN200820157772U CN201331206Y CN 201331206 Y CN201331206 Y CN 201331206Y CN U2008201577726 U CNU2008201577726 U CN U2008201577726U CN 200820157772 U CN200820157772 U CN 200820157772U CN 201331206 Y CN201331206 Y CN 201331206Y
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Abstract
The utility model discloses an internal-switched large-scale screw type water-ground source heat pump unit, which can greatly simplify the procedures of installation and maintenance. The outlet end of a compressor is connected with the high-pressure inlet end of a four-way reversing valve through an exhaust valve and a heat regenerator in sequence; the left and the right joint ends of the four-way reversing valve are connected with one end of a first condensing-evaporating device and one end of a second condensing-evaporating device respectively; the middle outlet end of the four-way reversing valve is connected with one end of an air suction valve and a valve rod of an expansion valve respectively; the other end of the air suction valve is connected with the inlet end of the compressor; one end of the expansion valve is connected with the other end of the first condensing-evaporating device and the other end of the second condensing-evaporating device respectively; the other end of the expansion valve is connected with the inlet end of a drying and filtering device through a first stop valve; and the outlet end of the drying and filtering device is connected with the other end of the first condensing-evaporating device and the other end of the second condensing-evaporating device through a second stop valve respectively.
Description
Technical field
The utility model relates to a kind of air-conditioning equipment, is specifically related to a kind of interior large-scale screw water earth source heat pump unit that switches.
Background technology
Water earth source heat pump unit be with ground can (underground water) be main energy sources, be aided with electric energy, equipment by the advanced person is developed underground inexhaustible but low level energy difficult utilization, makes it become available high potential, and it can satisfy the requirement of heat supply in winter, summer cooling.
Large-scale screw water earth source heat pump unit is the main air-conditioning unit of heavy construction.Domestic large-scale screw water earth source heat pump unit is structurally the same with handpiece Water Chilling Units at present, just distinguishes to some extent in project installation.Large-scale screw water earth source heat pump unit is different with the low profile thermal pump assembly, the low profile thermal pump assembly can switch the replacing that realizes the cooling and warming pattern by cross valve, and the outer pipeline switching mode of unit is freezed, the conversion of heating mode and present domestic large-scale screw water earth source heat pump unit generally adopts.The large-scale screw water earth source heat pump unit (as shown in Figure 1) of prior art, unit inside mainly comprises compressor 9, condenser 10, evaporimeter 11, expansion valve 12, electric-control system (not shown) etc., unit is provided with eight control valves 1～8 and wet well 13 and back water well 14 outward, and the cold and hot switching in water route is all carried out beyond unit.Control valve 1,4,6,7 when freeze summer that unit is outer is opened, control valve 2,3, and 5,8 close, and then can realize the purpose of refrigeration in summer; Control valve 1,4,6,7 during winter heating that unit is outer cuts out, control valve 2,3, and 5,8 open, and then can realize the purpose of winter heating.
The large-scale screw water earth source heat pump unit of prior art is installed to the user in engineering design and is brought very big trouble, also more complicated in user's use simultaneously, and the user in period in every replacing season will reset the water pipe line valve of unit.Simultaneously because engineering merchant's level is very different, cause unit install and use in more or less meeting have problems.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and the large-scale screw water earth source heat pump unit that switches in a kind of is provided, and it can simplify the flow process of installation and maintenance greatly.
A kind of technical scheme that realizes above-mentioned purpose is: the large-scale screw water earth source heat pump unit that switches in a kind of, comprise a compressor, two condensation/vaporization devices and an expansion valve, it also comprises a four-way change-over valve, an air bleeding valve, an inlet valve, two stop valves and a device for drying and filtering
The port of export of described compressor is connected with the high pressure entry end of four-way change-over valve by air bleeding valve;
The left and right interface end of described four-way change-over valve is connected with an end of the first condensation/vaporization device and an end of the second condensation/vaporization device respectively; The central exit end of described four-way change-over valve is connected with an end of inlet valve and the valve rod of expansion valve respectively;
The other end of described inlet valve is connected with the arrival end of compressor;
One end of described expansion valve is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device respectively; The other end of described expansion valve is connected with the arrival end of device for drying and filtering by first stop valve;
The port of export of described device for drying and filtering is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device respectively by second stop valve.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching, wherein, the port of export of described compressor is connected with air bleeding valve by first check valve.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching, wherein, the left and right interface end of described four-way change-over valve is connected with an end of the first condensation/vaporization device and an end of the second condensation/vaporization device by first high-pressure safety valve and second high-pressure safety valve respectively; The central exit end of described four-way change-over valve is connected with an end of inlet valve by a low-pressure safety valve.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching, wherein, an end of described expansion valve is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device by second check valve and the 3rd check valve respectively.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching wherein, also is connected a liquid-sighting glass between the other end of described expansion valve and first stop valve.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching, wherein, described second stop valve is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device by the 4th check valve and the 5th check valve respectively.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching, wherein, described first stop valve also can be connected with the arrival end of compressor by magnetic valve and the 6th check valve successively.
The large-scale screw water earth source heat pump unit of above-mentioned interior switching, wherein, described air bleeding valve is connected with the high pressure entry end of four-way change-over valve after also can connecting a part of heat exchanger again.
The technical scheme of the large-scale screw water earth source heat pump unit that switches in of the present utility model by increasing cross valve assembly and four check valves, can be simplified the workload of project installation greatly, has greatly made things convenient for the maintenance of unit operation simultaneously.In unit, can switch by the fluorine system, reach the purpose that cooling and warming switches according to the pattern difference.Unit outer water pipe road is installed very convenient, the Water in Condenser pipeline water receiving source water route of correspondence during refrigeration; The evaporimeter water pipe connects air-conditioning and gets final product, and air-conditioning can be set according to the user and require to carry out automatic changes in temperature switching.
Description of drawings
Fig. 1 is the structural representation of the large-scale screw water earth source heat pump unit of prior art;
Fig. 2 is the structural representation of the interior large-scale screw water earth source heat pump unit that switches of the present utility model.
The specific embodiment
See also Fig. 2, the large-scale screw water earth source heat pump unit that switches in of the present utility model, comprise a compressor 1, an air bleeding valve 3, a four-way change-over valve 5, two 6,7, two condensation/vaporization devices of high-pressure safety valve 8,9, a low-pressure safety valve 10, an inlet valve 11, an expansion valve 12, a liquid-sighting glass 13, two stop valves 14,16, a device for drying and filtering 15 and five check valves 2,17,18,19,20, wherein
Two condensation/vaporization devices 8,9 adopt the dry type shell and tube exchanger;
The port of export of compressor 1 is connected with the high pressure entry end of four-way change-over valve 5 by first check valve 2 and air bleeding valve 3 successively; Can select for use in the time of will carrying out recuperation of heat as unit and between the high pressure entry end of air bleeding valve 3 and four-way change-over valve 5, increase a part of heat regenerator 4; Portion of hot recover 4 can not comprise when the standard unit;
The left and right interface end of four-way change-over valve 5 is connected with an end of the first condensation/vaporization device 8 and an end of the second condensation/vaporization device 9 by first high-pressure safety valve 6 and second high-pressure safety valve 7 respectively; The central exit end of four-way change-over valve 5 is connected with the valve rod of expansion valve 12, and the central exit end of four-way change-over valve 5 also is connected with an end of inlet valve 11 by low-pressure safety valve 10;
The other end of inlet valve 11 is connected with the arrival end of compressor 1;
One end of expansion valve 12 is connected with the other end of the first condensation/vaporization device 8 and the other end of the second condensation/vaporization device 9 by second check valve 17 and the 3rd check valve 18 respectively; The other end of expansion valve 12 is connected with the arrival end of device for drying and filtering 15 by the liquid-sighting glass 13 and first stop valve 14 successively;
The port of export of device for drying and filtering 15 is connected with an end of the 4th check valve 19 and an end of the 5th check valve 20 respectively by second stop valve 16, and the other end of the other end of the 4th check valve 19 and the 5th check valve 20 is connected with the other end of the first condensation/vaporization device 8 and the other end of the second condensation/vaporization device 9 respectively.
In order to make system more stable, first stop valve 14 also can be connected with the arrival end of compressor 1 by magnetic valve 21 and the 6th check valve 22 successively.
The large-scale screw water earth source heat pump unit that switches in of the present utility model is when kind of refrigeration cycle; cold-producing medium is discharged from compressor 1 compression back and is entered first check valve 2; enter air bleeding valve 3 (the maintenance compressor is used) entering part heat regenerator 4 then and (reclaim heat hot water; can select for use) after select trend to enter by the 4th check valve 19 (to change device for drying and filtering usefulness through first stop valve 14 after second stop valve 16 (change device for drying and filtering with) enters device for drying and filtering 15 dry filters again through entering after the first condensation/vaporization device 8 (the being condenser during refrigeration) condensation through high-pressure safety valve 6 (protection compressor during hypertonia) after four-way change-over valve 5 commutation; close first when changing device for drying and filtering; second stop valve 14; 16 change) (whether moisture is too high for detectable refrigerant through 12 through looking liquid; need to change device for drying and filtering) after enter expansion valve 12 and expand and select to enter after the second condensation/vaporization device 9 (the being evaporimeter during refrigeration) evaporation again by four-way change-over valve 5 by the 3rd check valve 18; after enter low-pressure safety valve 10 (during hypotony protection compressor); pass through inlet valve 11 (maintenance compressor with) again and get back to compressor 1, finish kind of refrigeration cycle.In kind of refrigeration cycle, the first condensation/vaporization device 8 carries out heat exchange with water, adds hot water; The second condensation/vaporization device 9 and water heat exchange, cooling water.
When carrying out heat pump (heating) operation, cold-producing medium from compressor 1 discharge the back by first check valve 2 through enter behind the air bleeding valves 3 enter behind the portion of hot recover 4 four-way change-over valve 5 through high-pressure safety valves 7 enter after the second condensation/vaporization device 9 (being condenser when the heating) condensation by select through the 5th check valve 20 backs by second stop valve 16 after super-dry filter 15 dry backs by first stop valve 14, enter expansion valve 12 through behind the liquid-sighting glass 13 again, expand the back by selecting through second check valve 17, enter the first condensation/vaporization device 8 (being evaporimeter when heating) evaporation back then by four-way change-over valve 5, get back to compressor 1 through entering inlet valve 11 behind the low-pressure safety valve 10 again, finish heating circulation.In heating circulation, the second condensation/vaporization device 9 carries out heat exchange with water, adds hot water; The first condensation/vaporization device 8 and water heat exchange, cooling water.
Magnetic valve 21 is opened according to compressor 1 detected temperatures, and getting back to compressor 1 after making the sub-fraction cold-producing medium expand by pressure reduction comes cooling compressor 1, makes system more stable.
The large-scale screw water earth source heat pump unit that switches in of the present utility model has been simplified the workload of project installation greatly, has greatly made things convenient for the maintenance of unit operation simultaneously.In unit, can switch by the fluorine system, reach the purpose that cooling and warming switches according to the pattern difference.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (8)
1. the large-scale screw water earth source heat pump unit that switches in a kind comprises a compressor, two condensation/vaporization devices and an expansion valve, it is characterized in that, it also comprises a four-way change-over valve, an air bleeding valve, an inlet valve, two stop valves and a device for drying and filtering,
The port of export of described compressor is connected with the high pressure entry end of four-way change-over valve by air bleeding valve;
The left and right interface end of described four-way change-over valve is connected with an end of the first condensation/vaporization device and an end of the second condensation/vaporization device respectively; The central exit end of described four-way change-over valve is connected with an end of inlet valve and the valve rod of expansion valve respectively;
The other end of described inlet valve is connected with the arrival end of compressor;
One end of described expansion valve is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device respectively; The other end of described expansion valve is connected with the arrival end of device for drying and filtering by first stop valve;
The port of export of described device for drying and filtering is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device respectively by second stop valve.
2. the large-scale screw water earth source heat pump unit that switches in according to claim 1 is characterized in that the port of export of described compressor is connected with air bleeding valve by first check valve.
3. the large-scale screw water earth source heat pump unit that switches in according to claim 1, it is characterized in that the left and right interface end of described four-way change-over valve is connected with an end of the first condensation/vaporization device and an end of the second condensation/vaporization device by first high-pressure safety valve and second high-pressure safety valve respectively; The central exit end of described four-way change-over valve is connected with an end of inlet valve by a low-pressure safety valve.
4. the large-scale screw water earth source heat pump unit that switches in according to claim 1, it is characterized in that an end of described expansion valve is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device by second check valve and the 3rd check valve respectively.
5. the large-scale screw water earth source heat pump unit that switches in according to claim 1 is characterized in that, also is connected a liquid-sighting glass between the other end of described expansion valve and first stop valve.
6. the large-scale screw water earth source heat pump unit that switches in according to claim 1, it is characterized in that described second stop valve is connected with the other end of the first condensation/vaporization device and the other end of the second condensation/vaporization device by the 4th check valve and the 5th check valve respectively.
7. the large-scale screw water earth source heat pump unit that switches in according to claim 1 is characterized in that described first stop valve also can be connected with the arrival end of compressor by magnetic valve and the 6th check valve successively.
8. the large-scale screw water earth source heat pump unit that switches in according to claim 1 is characterized in that described air bleeding valve is connected with the high pressure entry end of four-way change-over valve after also can connecting a part of heat exchanger again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201577726U CN201331206Y (en) | 2008-12-25 | 2008-12-25 | Internal-switched large-scale screw type water-ground source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201577726U CN201331206Y (en) | 2008-12-25 | 2008-12-25 | Internal-switched large-scale screw type water-ground source heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331206Y true CN201331206Y (en) | 2009-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201577726U Expired - Lifetime CN201331206Y (en) | 2008-12-25 | 2008-12-25 | Internal-switched large-scale screw type water-ground source heat pump unit |
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| Country | Link |
|---|---|
| CN (1) | CN201331206Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435013A (en) * | 2011-12-20 | 2012-05-02 | 克莱门特捷联制冷设备(上海)有限公司 | Water and air dual-source heat pump unit |
| CN106225340A (en) * | 2016-07-25 | 2016-12-14 | 信易电热机械有限公司 | A kind of refrigeration system |
-
2008
- 2008-12-25 CN CNU2008201577726U patent/CN201331206Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435013A (en) * | 2011-12-20 | 2012-05-02 | 克莱门特捷联制冷设备(上海)有限公司 | Water and air dual-source heat pump unit |
| CN106225340A (en) * | 2016-07-25 | 2016-12-14 | 信易电热机械有限公司 | A kind of refrigeration system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |
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| CX01 | Expiry of patent term |