CN203672000U - Constant pressure device for ground source heat pump system - Google Patents
Constant pressure device for ground source heat pump system Download PDFInfo
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- CN203672000U CN203672000U CN201320868146.9U CN201320868146U CN203672000U CN 203672000 U CN203672000 U CN 203672000U CN 201320868146 U CN201320868146 U CN 201320868146U CN 203672000 U CN203672000 U CN 203672000U
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Abstract
A constant pressure device for a ground source heat pump system comprises a machine room water supply tank, a geographic make-up pump, an electric water escape valve and a system pressure controller. The machine room water supply tank is arranged on the ground of a heat pump machine room. A water outlet is formed in one side of the bottom of the machine room water supply tank, a water inlet is formed in the upper end of the machine room water supply tank, and system supplement water is contained in the machine room water supply tank. The geographic make-up pump is mounted on a pipeline which is connected between a water collecting pipeline in a geographic system and the water outlet in the machine room water supply tank. The electric water escape valve is mounted on a pipeline which is connected between the water collecting pipeline and the water inlet in the upper end of the machine room water supply tank. The system pressure controller is mounted at the position, higher than a highest machine room pipeline, inside the heat pump machine room, and the lower end of the system pressure controller is connected with the water collecting pipeline through a pipeline. Compared with a high-position water tank, the constant pressure device for the ground source heat pump system has the advantages of being small in occupied space, flexible and reliable to operate, simple in structure, low in cost and low in construction cost, thereby being applicable to any one of ground source heat pump systems.
Description
Technical field
The utility model belongs to ground source heat pump project technical field, particularly relates to a kind of earth-source hot-pump system constant pressure arrangement.
Background technology
Ground source heat pump project is exactly first in the earth soil, to hole, then the prefabricated U-shaped pipe that is referred to as ground heat exchanger is imbedded in hole, and U-shaped pipe is connected with source pump with connecting line, and on the connecting line between U-shaped pipe and source pump, be connected a tableland and bury systemic circulation water pump, on the connecting line between source pump and indoor air-conditioning system, be connected an Air Conditioning Cycle water pump, form thus earth-source hot-pump system simultaneously.Wherein source pump is made up of compressor, condenser, expansion valve and evaporimeter, is conventionally arranged in heat pump machine room.Source pump, ground heat exchanger and connecting line are referred to as embedding system.When operation, utilize embedding system water circulating pump using as heat transferring medium and and the earth between carried out heat exchange and offered source pump from the water that the earth absorbs heat or cold by the connecting line between U-shaped pipe and source pump, and in the mode of heat exchange, this heat or cold are offered to refrigerant, Air Conditioning Cycle water pump offers the each indoor heat exchanger in air-conditioning system by the above-mentioned refrigerant heating up after heat exchange or lower the temperature by connecting line more afterwards, in indoor heat exchanger, this refrigerant will carry out heat exchange with the air of the interior space, thereby the interior space is remained at suitable temperature.
Fig. 1 is a kind of embedding system structural representation of prior art.As shown in Figure 1, described embedding system comprises source pump 1, embedding system water circulating pump 2, buried water knockout drum 3, buried water collector 4 and multiple ground heat exchanger 5; Wherein the top of buried water knockout drum 3 is provided with a water inlet 8, and bottom is provided with multiple delivery ports 9; The top of buried water collector 4 is provided with a delivery port 10, and bottom is provided with multiple water inlets 11; Multiple ground heat exchangers 5 are divided into some groups, and every group is connected with each ground heat exchanger 5 water inlet ends by same Cheng Fangfa by a level header 12, and collector 13 is connected with a water inlet 11 on buried water collector 4; Source pump 1 by supply channel 6 and catchment pipeline 7 respectively with buried water knockout drum 3 on water inlet 8 and the delivery port 10 on buried water collector 4 join; Embedding system water circulating pump 2 is arranged on the pipeline between source pump 1 and buried water collector 4.
In addition, embedding system is identical with air-conditioning system, is all in water-filled situation, to utilize water pump that water is circulated in system in system.In addition, in earth-source hot-pump system, level pressure equipment must be set, utilize it to control intrasystem pressure, object has following 2 points:
1, in system, the pressure of each point is all higher than atmospheric pressure, and air can not automatic log-on, and the air existing in simultaneity factor can enter atmosphere under pressure.
2, in system, the pressure of each point can not be too high, assurance system in all devices and pipeline be no more than working pressure, make system safety operation.
Conventional level pressure method has following several at present:
1, elevated tank level pressure.
2, Constant pressure tank level pressure.
3, distance-transmission pressure gauge pump variable frequency level pressure.
" Constant pressure tank level pressure " and " distance-transmission pressure gauge pump variable frequency level pressure " these two kinds of methods of employing are because of reasons such as pressure sensor insufficient sensitivity height, often be only applicable to middle high-pressure steady of system press, not too applicable to earth-source hot-pump system, there is the danger of superpressure, except not recommendation of last resort.Although adopt " elevated tank " the safest to this method of steady of system press, but elevated tank must be located at the highest point of heat pump machine room, water tank bottom surface must be higher than all embedding system pipelines in heat pump machine room, because arranging elevated tank, a lot of heat pump machine rooms have any problem, physical features fails to lay down, thereby causes construction costs higher.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of little and reliable earth-source hot-pump system constant pressure arrangement of flexible operation that takes up an area.
In order to achieve the above object, the earth-source hot-pump system that the utility model provides comprises machine room feed-tank, buried small pump, electronic drain valve and system pressure controller with constant pressure arrangement; Wherein machine room feed-tank is arranged on the ground of heat pump machine room, and bottom one side is provided with delivery port, and upper end is provided with water inlet, and inside is contained with system and supplements water; Buried small pump is arranged on and is connected on the pipeline catchmenting between pipeline and machine room feed-tank upper water-out mouth in embedding system; Electronic drain valve is arranged on and is connected on the pipeline catchmenting between pipeline and machine room feed-tank upper end water inlet; System pressure controller is arranged on the position higher than the highest machine room pipeline in heat pump machine room, and its lower end is connected with the pipeline that catchments by pipeline.
Described system pressure controller comprises tank body and floating-ball level switch; Wherein the lower end of tank body is formed with water inlet, and water inlet is connected with the pipeline that catchments by pipeline, and inside is contained with heat transferring medium; Floating-ball level switch is made up of fixed leg, bottom magnetic ball float, upper magnetic ball float and first to fourth electromagnetism point, and wherein fixed leg is vertically mounted on tank interior axle center place; First to fourth electromagnetism is put standoff distance from bottom to up and is arranged on fixed leg, wherein the 3rd, the 4th electromagnetism point is electrically connected with electronic drain valve by electronic drain valve control circuit, and first, second electromagnetism point is electrically connected with buried small pump by water pump control circuit; Bottom magnetic ball float and upper magnetic ball float are set on the fixed leg between first, second electromagnetism point and the 3rd, the 4th electromagnetism point in the mode that can move up and down.
The top of described tank body is also formed with overfall, and overfall is connected with machine room feed-tank by overflow pipe, and upper end is formed with exhaust outlet simultaneously.
The earth-source hot-pump system that the utility model provides with constant pressure arrangement compared with elevated tank, have take up an area little, the reliable advantage of flexible operation, and simple in structure, cost is low, construction costs is low, therefore applicable to any earth-source hot-pump system.In addition, system pressure controller is as long as higher than machine room pipeline, and therefore level pressure pressure only has several meter water columns, so security is good.
Accompanying drawing explanation
Fig. 1 is a kind of embedding system structural representation of prior art.
The earth-source hot-pump system that Fig. 2 provides for the utility model constant pressure arrangement structural representation.
Fig. 3 is system pressure controller vertical structure cutaway view in the constant pressure arrangement shown in Fig. 2.
The specific embodiment
Earth-source hot-pump system the utility model being provided below in conjunction with the drawings and specific embodiments is elaborated with constant pressure arrangement.The parts identical with prior art adopt identical drawing reference numeral, and omit the explanation that it is carried out.
As shown in Figure 2, the earth-source hot-pump system that the utility model provides comprises machine room feed-tank 14, buried small pump 15, electronic drain valve 16 and system pressure controller 17 with constant pressure arrangement; Wherein machine room feed-tank 14 is arranged on the ground of heat pump machine room, and bottom one side is provided with delivery port, and upper end is provided with water inlet, and inside is contained with system and supplements water; Buried small pump 15 is arranged on and is connected on the pipeline catchmenting between pipeline 7 and machine room feed-tank 14 upper water-out mouths in embedding system; Electronic drain valve 16 is arranged on and is connected on the pipeline catchmenting between pipeline 7 and machine room feed-tank 14 upper end water inlets; System pressure controller 17 is arranged on the position higher than the highest machine room pipeline in heat pump machine room, and its lower end is connected with the pipeline 7 that catchments by pipeline.
As shown in Figure 3, described system pressure controller 17 comprises tank body 18 and floating-ball level switch 19; Wherein the lower end of tank body 18 is formed with water inlet 20, and water inlet 20 is connected with the pipeline 7 that catchments by pipeline, and inside is contained with heat transferring medium; Floating-ball level switch 19 is made up of fixed leg 21, bottom magnetic ball float 22, upper magnetic ball float 23 and first to fourth electromagnetism point 24-27, and wherein fixed leg 21 is vertically mounted on tank body 18 internal axis places; First to fourth electromagnetism point 24-27 from bottom to up standoff distance is arranged on fixed leg 21, wherein the 3rd, the 4th electromagnetism point 26,27 are electrically connected with electronic drain valve 16 by electronic drain valve control circuit, first, second electromagnetism point 24,25 is electrically connected with buried small pump 15 by water pump control circuit; Bottom magnetic ball float 22 and upper magnetic ball float 23 are set on the fixed leg 21 being positioned between first, second electromagnetism point 24,25 and the 3rd, the 4th electromagnetism point 26,27 in the mode that can move up and down.
The top of described tank body 18 is also formed with overfall 28, and overfall 28 is connected with machine room feed-tank 14 by overflow pipe 30, and upper end is formed with exhaust outlet 29 simultaneously.
The earth-source hot-pump system now the utility model being provided is described below by constant pressure arrangement operation principle: being down to the first electromagnetism point 24(when the heat transferring medium liquid level in system pressure controller 17 upper tank bodies 18 is A point) position time, bottom magnetic ball float 22 will contact on the first electromagnetism point 24, thereby this electromagnetism point is connected, open buried small pump 15 by water pump control circuit thus, thereby the water extraction supply in machine room feed-tank 14 is catchmented to pipeline 7 and embedding system is carried out to moisturizing; Along with the interior heat transferring medium liquid level of tank body 18 rises, the position of bottom magnetic ball float 22 also will increase, it is B point that thermal medium liquid level to be changed rises to the second electromagnetism point 25() position time, bottom magnetic ball float 22 will contact on the second electromagnetism point 25, thereby this electromagnetism point is disconnected, and at this moment under the control of water pump control circuit, buried small pump 15 stops moisturizing.Because the heat transferring medium in embedding system may produce because being heated expansion, be D point when heat transferring medium liquid level reaches the 4th electromagnetism point 27() position time, upper magnetic ball float 23 will contact on the 4th electromagnetism point 27, thereby electromagnetism point is connected, open electronic drain valve 16 by electronic drain valve control circuit thus, at this moment the heat transferring medium in embedding system will leak in machine room feed-tank 14 by being connected in the pipeline catchmenting between pipeline 7 and machine room feed-tank 14 upper end water inlets; Being down to the 3rd electromagnetism point 26(when heat transferring medium liquid level is C point) position time, upper magnetic ball float 23 will contact on the 3rd electromagnetism point 26, thereby this electromagnetism point is disconnected, and at this moment under the control of electronic drain valve control circuit, electronic drain valve 16 will cut out, result stops sluicing.
Claims (3)
1. an earth-source hot-pump system constant pressure arrangement, is characterized in that: it comprises machine room feed-tank (14), buried small pump (15), electronic drain valve (16) and system pressure controller (17); Wherein machine room feed-tank (14) is arranged on the ground of heat pump machine room, and bottom one side is provided with delivery port, and upper end is provided with water inlet, and inside is contained with system and supplements water; Buried small pump (15) is arranged on and is connected on the pipeline catchmenting between pipeline (7) and machine room feed-tank (14) upper water-out mouth in embedding system; Electronic drain valve (16) is arranged on the pipeline being connected between the pipeline that catchments (7) and machine room feed-tank (14) upper end water inlet; System pressure controller (17) is arranged on the position higher than the highest machine room pipeline in heat pump machine room, and its lower end is connected with the pipeline that catchments (7) by pipeline.
2. earth-source hot-pump system constant pressure arrangement according to claim 1, is characterized in that: described system pressure controller (17) comprises tank body (18) and floating-ball level switch (19); Wherein the lower end of tank body (18) is formed with water inlet (20), and water inlet (20) is connected with the pipeline that catchments (7) by pipeline, and inside is contained with heat transferring medium; Floating-ball level switch (19) is made up of fixed leg (21), bottom magnetic ball float (22), upper magnetic ball float (23) and first to fourth electromagnetism point (24-27), and wherein fixed leg (21) is vertically mounted on tank body (18) internal axis place; First to fourth electromagnetism point (24-27) from bottom to up standoff distance is arranged on fixed leg (21), wherein the 3rd, the 4th electromagnetism point (26,27) be electrically connected with electronic drain valve (16) by electronic drain valve control circuit, first, second electromagnetism point (24,25) is electrically connected with buried small pump (15) by water pump control circuit; Bottom magnetic ball float (22) and upper magnetic ball float (23) are set on the fixed leg (21) being positioned between first, second electromagnetism point (24,25) and the 3rd, the 4th electromagnetism point (26,27) in the mode that can move up and down.
3. earth-source hot-pump system constant pressure arrangement according to claim 2, it is characterized in that: the top of described tank body (18) is also formed with overfall (28), overfall (28) is connected with machine room feed-tank (14) by overflow pipe (30), and upper end is formed with exhaust outlet (29) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868146.9U CN203672000U (en) | 2013-12-26 | 2013-12-26 | Constant pressure device for ground source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868146.9U CN203672000U (en) | 2013-12-26 | 2013-12-26 | Constant pressure device for ground source heat pump system |
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| Publication Number | Publication Date |
|---|---|
| CN203672000U true CN203672000U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320868146.9U Expired - Fee Related CN203672000U (en) | 2013-12-26 | 2013-12-26 | Constant pressure device for ground source heat pump system |
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| CN (1) | CN203672000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743166A (en) * | 2013-12-26 | 2014-04-23 | 天津美意机电设备工程有限公司 | Pressure controlling device for ground source heat pump system |
-
2013
- 2013-12-26 CN CN201320868146.9U patent/CN203672000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743166A (en) * | 2013-12-26 | 2014-04-23 | 天津美意机电设备工程有限公司 | Pressure controlling device for ground source heat pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20191226 |