CN202562153U - Ground source side temperature and return air temperature low-temperature protective device of integrated-type ground source heat pump (GSHP) unit - Google Patents
Ground source side temperature and return air temperature low-temperature protective device of integrated-type ground source heat pump (GSHP) unit Download PDFInfo
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- CN202562153U CN202562153U CN2012201004824U CN201220100482U CN202562153U CN 202562153 U CN202562153 U CN 202562153U CN 2012201004824 U CN2012201004824 U CN 2012201004824U CN 201220100482 U CN201220100482 U CN 201220100482U CN 202562153 U CN202562153 U CN 202562153U
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Abstract
The utility model discloses a ground source side temperature and return air temperature low-temperature protective device of an integrated-type ground source heat pump (GSHP) unit. The ground source side temperature and return air temperature low-temperature protective device of the integrated-type GSHP unit comprises a control circuit which comprises a control chip, a jumper wire JW1 terminal, a jumper wire JW2 terminal, a ground source side temperature protective end FP1, a return air side temperature protective end FP2 and a control panel, a ground source side temperature probe, a return air side temperature probe, a compressor, a centrifugal fan, a ground source side water circulating pump and a hot water circulating pump which are connected with the control circuit. The ground source side temperature probe is arranged on a refrigeration pipe between a water-refrigerant double-pipe heat exchanger and a heat expansion valve of the integrated-type GSHP unit. The return air side temperature probe is arranged on a refrigerant-air heat exchanger of the integrated-type GSHP unit. When the ground source side temperature and the return air side temperature are lower than the lowest setting temperature, operation of the compressor, the centrifugal fan and water pumps is stopped, an error code is displayed on the control panel, and therefore safe and reliable operation of a heat pump is guaranteed.
Description
Technical field
The utility model relates to a kind of protection control device of earth source heat pump, is specifically related to the control device of a kind of integrated geo-source heat pump unit ground source temperature and return air temperature low-temperature protection.
Background technology
The integrated geo-source heat pump unit is a kind of efficient, energy-conservation and weatherproof air conditioner refrigerating, heating and the system that can produce hot water, is mainly used in the cold climate condition.The back run duration is installed, if source water temperature low excessively situation in ground tends to cause the pipeline water freezing of unit inside, is destroyed the unit internal pipeline, the problem in season that especially need heat will be more serious.Simultaneously,, also be unfavorable for the normal operation of unit, be prone to cause the unit overload operation if the return air temperature of integrated geo-source heat pump unit is low excessively.So; Consider the local climate diversity that unit possibly installed; In order to ensure the normal and stable operation of unit under various different weather conditions; The reliably protecting device that designs a kind of water temperature of source over the ground and the unit return air temperature important that just seems, this also is to be badly in need of the key issue that solves in the present industry.
The utility model content
The purpose of the utility model is to provide a kind of integrated geo-source heat pump unit ground source temperature and return air temperature low-temperature protection device; It also is a kind of defroster of integrated geo-source heat pump unit; It can further guarantee the earth source heat pump unit can be under various complicated weather conditions the operation of stability and high efficiency, prolong unit service life.
For achieving the above object; The utility model adopts following technical scheme: integrated geo-source heat pump unit ground source temperature and return air temperature low-temperature protection device; Comprise contain control chip, wire jumper JW1 terminals, wire jumper JW2 terminals, the control circuit of source temperature protection end FP1, return side temperature protection end FP2 and control panel, and the ground source temp probe that is connected with control circuit, return side temp probe, compressor, centrifugal blower, source water circulating pump and hot-water circulating pump; Wherein, source temp probe in ground is installed on the water-cold-producing medium double-tube heat exchanger and the refrigeration pipe between the heating power expansion valve of source pump; The return side temp probe is installed on the cold-producing medium-air heat exchanger of integrated heat pump unit.
The utility model can make the integrated geo-source heat pump unit can under various complicated weather conditions, select different ground source temperature and return air temperature protection limiting value through adopting said structure, guarantees the operation of source pump ability stability and high efficiency.
Description of drawings
The 1-control panel; The 2-control chip; The 3-control circuit; 4-ground source temp probe; 5-return side temp probe; The 6-compressor; The 7-centrifugal blower; 8-ground source water circulating pump; The 9-hot-water circulating pump; 11-wire jumper JW1 terminals; 21-wire jumper JW2 terminals; 12-ground source temperature protection end FP1; 22-return side temperature protection end FP2.
Combine accompanying drawing and embodiment that the utility model is done further explain at present.
The specific embodiment
As shown in Figure 1; The described integrated geo-source heat pump unit of the utility model ground source temperature and return air temperature low-temperature protection device; Comprise contain control chip (2), wire jumper JW1 terminals (11), wire jumper JW2 terminals (21), the control circuit (3) of source temperature protection end FP1 (12), return side temperature protection end FP2 (22) and control panel (1), and the ground source temp probe (4) that is connected with control circuit (3), return side temp probe (5), compressor (6), centrifugal blower (7), source water circulating pump (8) and hot-water circulating pump (9).Wherein, Ground source temp probe (4) is installed on the water-cold-producing medium double-tube heat exchanger and the refrigeration pipe between the heating power expansion valve of source pump; So that the detection at any time refrigerant temperature, and then pass through temperature and the flow condition that this refrigerant temperature reflects ground source recirculated water; Return side temp probe (5) is installed on the cold-producing medium-air heat exchanger of integrated heat pump unit, so that in time detect return air temperature.
Have two ambient parameters that the normal and high efficiency operation of integrated geo-source heat pump unit is had directly and significant effects, these two parameters are exactly: return air temperature and ground source temperature.
Because it is generally very abominable that the integrated geo-source heat pump unit is installed the weather conditions in area, such as winter extremely cold.So this patent content is but that the scope of the ground source temperature of integrated geo-source heat pump unit and the minimum permissive temperature value of return air temperature are carried out the design of selecting type, thereby realize low-temperature protection function to unit, specific as follows.
The Default Value situation of integrated geo-source heat pump unit is following:
(1) the minimum setting value of source temperature FP1 is-1 ℃;
(2) the minimum setting value of return air temperature FP2 is-1 ℃.
When following situation occurring; Control circuit (3) will send the low excessively signal of ground source temperature FP1; Stop compressor (6), centrifugal blower (7), the running of source water circulating pump (8) and hot-water circulating pump (9), and be presented on the control panel (1) through the mode of error code:
(a) source temperature FP1 is lower than minimum setting value (promptly-1 ℃), and;
(b) temperature rise speed that detects of the temp probe of source temperature FP1 is lower than 1 ℃/30 seconds.
When following situation occurring; Control circuit (3) will send the low excessively signal of return air temperature FP2; Stop compressor (6), centrifugal blower (7), the running of source water circulating pump (8) and hot-water circulating pump (9), and be presented on the control panel (1) through the mode of error code:
(a) return air temperature FP2 is lower than minimum setting value (promptly-1 ℃), and;
(b) the detected temperature rise speed of the temp probe of return air temperature FP2 is lower than 1 ℃/30 seconds.
When any one among local source temperature FP1 and the return air temperature FP2 was in the minimum of a value of its permission, another one must be in the range of normal value, so just can guarantee moving normally and efficiently of unit.
For the cold area that freezes in winter, in order to ensure the reliable and stable operation of earth source heat pump unit, but the utility model over the ground the minimum permissive temperature value of source temperature FP1 and return air temperature FP2 carried out selecting type design, specific as follows.
When (1) using in the lower area of thermal source water temperature, can adopt the mode of ground pipe laying, this moment, antifreeze medium circulation was adopted in pipe laying inside in ground.At this moment; Through the wire jumper JW1 terminals (11) on control circuit (3) plate are coupled together with wire jumper with ground source temperature protection end FP1 (12); Can the minimum permissive temperature of ground source temperature FP1 be reduced to-12 ℃ from-1 ℃ of Default Value, so that guarantee the normal operation of unit under the cold climate condition.
(2) when the client has special requirement, can the wire jumper JW2 terminals (21) on the control circuit (3) be carried out wire jumper with return side temperature protection end FP2 (22) and be connected.So, the minimum temperature limit value of return air temperature FP2 will ℃ be reduced to-12 ℃ by Default Value-1, so that guarantee unit under client's specific (special) requirements, and normally operation under lower environment temperature.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to the technical scheme and the design of above description.
Claims (1)
1. integrated geo-source heat pump unit ground source temperature and return air temperature low-temperature protection device; It is characterized in that: comprise contain control chip (2), wire jumper JW1 terminals (11), wire jumper JW2 terminals (21), the control circuit (3) of source temperature protection end FP1 (12), return side temperature protection end FP2 (22) and control panel (1); And the ground source temp probe (4) that is connected with control circuit (3), return side temp probe (5), compressor (6), centrifugal blower (7), source water circulating pump (8) and hot-water circulating pump (9), described ground source temp probe (4) is installed on the water-cold-producing medium double-tube heat exchanger and the refrigeration pipe between the heating power expansion valve of source pump; Return side temp probe (5) is installed on the cold-producing medium-air heat exchanger of integrated heat pump unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201004824U CN202562153U (en) | 2012-03-17 | 2012-03-17 | Ground source side temperature and return air temperature low-temperature protective device of integrated-type ground source heat pump (GSHP) unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201004824U CN202562153U (en) | 2012-03-17 | 2012-03-17 | Ground source side temperature and return air temperature low-temperature protective device of integrated-type ground source heat pump (GSHP) unit |
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| Publication Number | Publication Date |
|---|---|
| CN202562153U true CN202562153U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201004824U Expired - Fee Related CN202562153U (en) | 2012-03-17 | 2012-03-17 | Ground source side temperature and return air temperature low-temperature protective device of integrated-type ground source heat pump (GSHP) unit |
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| Country | Link |
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| CN (1) | CN202562153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006375A (en) * | 2019-12-23 | 2020-04-14 | 四川虹美智能科技有限公司 | Heating anti-freezing control method and device for ground source heat pump unit |
-
2012
- 2012-03-17 CN CN2012201004824U patent/CN202562153U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006375A (en) * | 2019-12-23 | 2020-04-14 | 四川虹美智能科技有限公司 | Heating anti-freezing control method and device for ground source heat pump unit |
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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 |
Granted publication date: 20121128 Termination date: 20170317 |
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| CF01 | Termination of patent right due to non-payment of annual fee |