CN202145065U - Ground source heat pump unit - Google Patents
Ground source heat pump unit Download PDFInfo
- Publication number
- CN202145065U CN202145065U CN201120245260U CN201120245260U CN202145065U CN 202145065 U CN202145065 U CN 202145065U CN 201120245260 U CN201120245260 U CN 201120245260U CN 201120245260 U CN201120245260 U CN 201120245260U CN 202145065 U CN202145065 U CN 202145065U
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- condenser
- outlet pipe
- water inlet
- heat pump
- evaporimeter
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Abstract
The utility model relates to a ground source heat pump unit which comprises a cooling or heating circulating device, a water inlet pipe and a water outlet pipe of an evaporator, a water inlet pipe and a water outlet pipe of a condenser, a first and a second butterfly valves, a water flow switch, a bypass pipeline, an electric two-way valve and a temperature sensor, wherein the bypass pipeline is connected between the water inlet pipe and the water outlet pipe of the condenser; the electric two-way valve is arranged on the bypass pipeline; and the temperature sensor is positioned on the water outlet pipe of the condenser. The bypass pipeline is arranged between the water inlet pipe and the water outlet pipe of the condenser of the ground source heat pump unit and is provided with the electric two-way valve, the temperature sensor is positioned on the water outlet pipe of the condenser, and the water outlet temperature of the condenser detected by the temperature sensor can be used for controlling the open degree of the electric two-way valve, so that the water inlet amount of the condenser can be automatically adjusted by the electric two-way valve when cooling in summer begins, and manual adjustment is not needed; therefore, the manpower and the time are saved, and the ground source heat pump unit is high in degree of automation as well as stable and reliable in system operation.
Description
Technical field
The utility model belongs to the ground source heat pump technology field, particularly relates to a kind of earth source heat pump unit.
Background technology
The essence of ground source heat pump technology utilizes trepan to hole at the earth exactly; In the hole, bury underground then by the PE plastics process and specialty on be called the U type pipe of ground heat exchanger; In ground heat exchanger, inject heat transferring medium afterwards; Heat transferring medium is generally water; Absorb heat or cold through the heat exchange between this heat transferring medium and the earth from the earth, heat transferring medium offers the refrigerant in the earth source heat pump unit with this heat or the cold mode through heat exchange then, and the earth source heat pump unit will pass through and heat up after the heat exchange or the refrigerant of cooling offers the air-conditioner that is installed in the interior space afterwards; This refrigerant will carry out heat exchange with the air of the interior space in air-conditioner, thereby the interior space is remained under the suitable temperature.Being earth-source hot-pump system is made up of the earth source heat pump unit that links to each other through pipeline each other, many groups ground heat exchanger of constituting many air-conditioners of air-conditioning system and constituting buried system; Wherein the earth source heat pump unit is installed in the machine room; Many air-conditioners are arranged on to be needed in the thermoregulator building to organize ground heat exchanger more and then to be embedded in the earth soil in the different interior spaces.
Fig. 1 is a kind of earth source heat pump set structure sketch map of prior art.As shown in Figure 1, the earth source heat pump unit of this prior art mainly comprises refrigeration or heats EGR, evaporimeter water inlet pipe 4, evaporimeter outlet pipe 5, condenser water inlet pipe 6, condenser outlet pipe 7, first butterfly valve 8, second butterfly valve 9 and water flow switch 10; Described refrigeration or heat EGR and be connected with each other through the refrigerant pipe by compressor 1, condenser 2, not shown expansion valve and evaporimeter 3 and constitute; Wherein evaporimeter 3 links to each other with an end of evaporimeter water inlet pipe 4 and evaporimeter outlet pipe 5, and the other end and the air-conditioning system of evaporimeter water inlet pipe 4 and evaporimeter outlet pipe 5 are joined; Condenser 2 links to each other with an end of condenser water inlet pipe 6 and condenser outlet pipe 7, and the other end and the buried system of condenser water inlet pipe 6 and condenser outlet pipe 7 join; First butterfly valve 8 is installed on the condenser outlet pipe 7; Second butterfly valve 9 is installed on the condenser water inlet pipe 6; Water flow switch 10 also is installed on the condenser outlet pipe 7, and its aperture size receives the control of water flow pressure.
During summer cooling; From the effect of 12 ℃ of unshowned in the drawings air-conditioning system water circulating pumps of recirculated water of air-conditioning system down through evaporimeter water inlet pipe 4 inflow evaporators 3; This water will carry out heat exchange with mobile refrigerant in the evaporimeter 3; Thereby water temperature is reduced to 7 ℃, flow back to air-conditioning system through condenser outlet pipe 7 then, thereby realize refrigeration the interior space.Meanwhile; From buried system and under the effect of the unshowned in the drawings buried systemic circulation water pump of buried system cold water of the earth heat radiation through condenser water inlet pipe 6 and on second butterfly valve 9 flow into condensers 2; This water will carry out heat exchange with mobile refrigerant in the condenser 2; Thereby water temperature is raise, then through condenser outlet pipe 7 and on the water flow switch 10 and first butterfly valve 8 flow back to buried system, circulate so repeatedly.Refrigeration or heat the same prior art of operation principle of EGR.During Winter heat supply, just the opposite when the flow direction of recirculated water and summer cooling in air-conditioning system and the buried system, therefore repeat no more here.
But; There is following point in the earth source heat pump unit of this prior art: because the earth has thermal inertia, so during summer cooling operation beginning, on the low side from the circulating water temperature of buried system; Approximately have only tens degrees centigrade; But some large-scale earth source heat pump unit requires the condenser leaving water temperature can not start like the low then earth source heat pump unit of cooling water temperature greater than 20 ℃-25 ℃, can get back to compressor 1 effectively to guarantee the unit lubricating oil.Solution to this problem is at present: 1. by the staff second butterfly valve 9 on condenser water inlet pipe in the earth source heat pump unit 6 and the condenser outlet pipe 7 and the aperture of first butterfly valve 8 are turned down; Thereby the water yield of the condenser 2 of flowing through is reduced, with the leaving water temperature of this condenser 2 that raises.2. but when the water yield reduces, the water flow switch 10 on the condenser outlet pipe 7 is because of little being failure to actuate of pressure of water, so the earth source heat pump unit still can not start, and at this moment can only make water flow switch 10 be in opening by force with the method for manual work.After waiting to move the long period, the temperature of recirculated water is all opened first butterfly valve 8 and second butterfly valve 9 after rising to the temperature that the earth source heat pump unit requires again in whole buried system, and water flow switch 10 is adjusted to normal condition.Above-mentioned this operating process all will be carried out once every year, so not only can take more manpower and time, and the safety in operation of earth source heat pump unit can't be guaranteed also.
Summary of the invention
In order to address the above problem, the purpose of the utility model is to provide a kind of and can saves manpower and time, system operates steadily reliable earth source heat pump unit.
In order to achieve the above object, the earth source heat pump unit that provides of the utility model comprises refrigeration or heats EGR, evaporimeter water inlet pipe, evaporimeter outlet pipe, condenser water inlet pipe, condenser outlet pipe, first butterfly valve, second butterfly valve and water flow switch; Described refrigeration or heat EGR and be connected with each other through the refrigerant pipe by compressor, condenser, expansion valve and evaporimeter and constitute; Wherein evaporimeter links to each other with an end of evaporimeter water inlet pipe and evaporimeter outlet pipe, and the other end and the air-conditioning system of evaporimeter water inlet pipe and evaporimeter outlet pipe are joined; Condenser links to each other with an end of condenser water inlet pipe and condenser outlet pipe, and the other end and the buried system of condenser water inlet pipe and condenser outlet pipe join; First butterfly valve is installed on the condenser outlet pipe; Second butterfly valve is installed on the condenser water inlet pipe; Water flow switch also is installed on the condenser outlet pipe, and its aperture size receives the control of water flow pressure; Described earth source heat pump unit also comprises bypass line, two-way electronic valve and temperature sensor; Wherein an end of bypass line is connected on the pipeline between water flow switch and first butterfly valve and the condenser, and the other end is connected on the pipeline between second butterfly valve and the condenser; Two-way electronic valve is arranged on the bypass line; Temperature sensor is installed on the condenser outlet pipe, is electrically connected with two-way electronic valve simultaneously, and it can control the aperture of two-way electronic valve according to the temperature of condensed water on the condenser outlet pipe.
Described earth source heat pump unit comprises that also at least one is installed in the 3rd butterfly valve on the bypass line.
The earth source heat pump unit that the utility model provides is that a bypass pipe road is set between condenser water inlet pipe that links to each other with buried system and condenser outlet pipe; And a two-way electronic valve is installed on this pipeline; A temperature sensor is installed on the condenser outlet pipe simultaneously; Utilize the detected condenser leaving water temperature of temperature sensor to control the aperture of two-way electronic valve, so just can when summer cooling operation beginning, utilize two-way electronic valve to regulate the inflow of condenser automatically, and need not manual adjustment; Therefore can save manpower and time, and automaticity is high, system operates steadily reliably.
Description of drawings
Fig. 1 is a kind of earth source heat pump set structure sketch map of prior art.
The earth source heat pump set structure sketch map that Fig. 2 provides for the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the earth source heat pump unit that the utility model provides is elaborated.The parts identical with prior art adopt identical drawing reference numeral, and omit its explanation of carrying out.
As shown in Figure 2, the earth source heat pump unit that the utility model provides comprises refrigeration or heats EGR, evaporimeter water inlet pipe 4, evaporimeter outlet pipe 5, condenser water inlet pipe 6, condenser outlet pipe 7, first butterfly valve 8, second butterfly valve 9 and water flow switch 10; Described refrigeration or heat EGR and be connected with each other through the refrigerant pipe by compressor 1, condenser 2, not shown expansion valve and evaporimeter 3 and constitute; Wherein evaporimeter 3 links to each other with an end of evaporimeter water inlet pipe 4 and evaporimeter outlet pipe 5, and the other end and the air-conditioning system of evaporimeter water inlet pipe 4 and evaporimeter outlet pipe 5 are joined; Condenser 2 links to each other with an end of condenser water inlet pipe 6 and condenser outlet pipe 7, and the other end and the buried system of condenser water inlet pipe 6 and condenser outlet pipe 7 join; First butterfly valve 8 is installed on the condenser outlet pipe 7; Second butterfly valve 9 is installed on the condenser water inlet pipe 6; Water flow switch 10 also is installed on the condenser outlet pipe 7, and its aperture size receives the control of water flow pressure; Described earth source heat pump unit also comprises bypass line 11, two-way electronic valve 12 and temperature sensor 13; Wherein an end of bypass line 11 is connected on the pipeline between water flow switch 10 and first butterfly valve 8 and the condenser 2, and the other end is connected on the pipeline between second butterfly valve 9 and the condenser 2; Two-way electronic valve 12 is arranged on the bypass line 11; Temperature sensor 13 is installed on the condenser outlet pipe 7, is electrically connected with two-way electronic valve 12 simultaneously, and it can control the aperture of two-way electronic valve 12 according to the temperature of condensed water on the condenser outlet pipe 7.
Described earth source heat pump unit comprises that also at least one is installed in the 3rd butterfly valve 14 on the bypass line 11.
During summer cooling operation beginning; Because this moment is lower from the circulating water temperature of buried system; Therefore the aperture of two-way electronic valve 12 is very big under the control of temperature sensor 13; At this moment the recirculated water major part from buried system flows back to buried system through bypass line 11, and the water yield that gets into condenser 2 is then less, thereby can make the leaving water temperature requirement of source source pump contentedly of condenser 2.After operation after a while, along with improving constantly of condensed water temperature, the aperture of two-way electronic valve 12 turns down gradually, until Close All, and at this moment will be all through condenser 2 from the recirculated water of buried system.In addition, when two-way electronic valve 12 broke down, the 3rd butterfly valve 14 capable of using cut out bypass line 11, and at this moment the structure of earth source heat pump unit will be identical with prior art, therefore can adopt existent method to regulate temporarily.In addition, therefore the same prior art of earth source heat pump working principle of said set that the utility model provides repeats no more here.
Claims (2)
1. earth source heat pump unit, it comprises refrigeration or heats EGR, evaporimeter water inlet pipe (4), evaporimeter outlet pipe (5), condenser water inlet pipe (6), condenser outlet pipe (7), first butterfly valve (8), second butterfly valve (9) and water flow switch (10); Described refrigeration or heat EGR and be connected with each other through the refrigerant pipe by compressor (1), condenser (2), expansion valve and evaporimeter (3) and constitute; Wherein evaporimeter (3) links to each other with the end of evaporimeter water inlet pipe (4) with evaporimeter outlet pipe (5), and the other end and the air-conditioning system of evaporimeter water inlet pipe (4) and evaporimeter outlet pipe (5) are joined; Condenser (2) links to each other with the end of condenser water inlet pipe (6) with condenser outlet pipe (7), and the other end and the buried system of condenser water inlet pipe (6) and condenser outlet pipe (7) join; First butterfly valve (8) is installed on the condenser outlet pipe (7); Second butterfly valve (9) is installed on the condenser water inlet pipe (6); Water flow switch (10) also is installed on the condenser outlet pipe (7), and its aperture size receives the control of water flow pressure; It is characterized in that: described earth source heat pump unit also comprises bypass line (11), two-way electronic valve (12) and temperature sensor (13); Wherein an end of bypass line (11) is connected on the pipeline between water flow switch (10) and first butterfly valve (8) and the condenser (2), and the other end is connected on the pipeline between second butterfly valve (9) and the condenser (2); Two-way electronic valve (12) is arranged on the bypass line (11); Temperature sensor (13) is installed on the condenser outlet pipe (7), is electrically connected with two-way electronic valve (12) simultaneously, and it can go up the aperture of the temperature control two-way electronic valve (12) of condensed water according to condenser outlet pipe (7).
2. earth source heat pump unit according to claim 1 is characterized in that: described earth source heat pump unit comprises that also at least one is installed in the 3rd butterfly valve (14) on the bypass line (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245260U CN202145065U (en) | 2011-07-14 | 2011-07-14 | Ground source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245260U CN202145065U (en) | 2011-07-14 | 2011-07-14 | Ground source heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202145065U true CN202145065U (en) | 2012-02-15 |
Family
ID=45580996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120245260U Expired - Lifetime CN202145065U (en) | 2011-07-14 | 2011-07-14 | Ground source heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202145065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261770A (en) * | 2011-07-14 | 2011-11-30 | 天津美意机电设备工程有限公司 | Ground source heat pump set |
-
2011
- 2011-07-14 CN CN201120245260U patent/CN202145065U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261770A (en) * | 2011-07-14 | 2011-11-30 | 天津美意机电设备工程有限公司 | Ground source heat pump set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120215 |