CN203147985U - Control device for GSHP (Ground Source Heat Pump) unit - Google Patents

Control device for GSHP (Ground Source Heat Pump) unit Download PDF

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Publication number
CN203147985U
CN203147985U CN 201320106695 CN201320106695U CN203147985U CN 203147985 U CN203147985 U CN 203147985U CN 201320106695 CN201320106695 CN 201320106695 CN 201320106695 U CN201320106695 U CN 201320106695U CN 203147985 U CN203147985 U CN 203147985U
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CN
China
Prior art keywords
control device
output control
control circuit
circuit
microcontroller
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Expired - Fee Related
Application number
CN 201320106695
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Chinese (zh)
Inventor
李�浩
张燕立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Mammoth Electromechanical Equipment Engineering Co., Ltd.
Original Assignee
TIANJIN MEIYI AIR-CONDITIONER EQUIPMENT SALES Co Ltd
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Priority to CN 201320106695 priority Critical patent/CN203147985U/en
Application granted granted Critical
Publication of CN203147985U publication Critical patent/CN203147985U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a control device for a GSHP (Ground Source Heat Pump) unit. The control device comprises a micro controller, a temperature sensor, a power supply, an input collection circuit, a first output control circuit and a second output control circuit, wherein the temperature sensor is arranged on an air conditioning system water return pipe and is connected with the micro controller through the input collection circuit; the micro controller is also connected with the first output control circuit and the second output control circuit; the first output control circuit and the second output control circuit are respectively connected with a control device on a compressor and a control device on an underground system circulating water pump; and the power supply is used for supplying working current for other components in the whole control device. According to the control device provided by the utility model, water return temperature of an air conditioning system can be detected in real time by utilizing the temperature sensor on the control device, starting and stopping of the compressor and the underground system circulating water pump can be determined according to the water return temperature and a temperature threshold value range which is preset in the micro controller, the underground system circulating water pump can be in intermittent operation along with the compressor, thus the energy consumption of a whole system can be reduced to a large extent, and the effect can be very obvious.

Description

Earth source heat pump unit control device
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 control device.
Background technology
The essence of ground source heat pump technology utilizes trepan to hole at the earth exactly, bury underground in the hole then by the PE plastics make and specialty on be called the U-shaped pipe of ground heat exchanger, in ground heat exchanger, inject heat transferring medium afterwards, heat transferring medium is generally water, absorb heat or cold by the heat exchange between this heat transferring medium and the earth from the earth, heat transferring medium offers refrigerant in the earth source heat pump unit with this heat or the cold mode by heat exchange then, the earth source heat pump unit will offer the air-conditioner that is installed in the interior space through the refrigerant that heats up after the heat exchange or lower the temperature again 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 by 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 and need to organize ground heat exchanger more and then be embedded in the earth soil in the interior different interior spaces of thermoregulator building.
Fig. 1 is a kind of earth source heat pump set structure schematic diagram of prior art.As shown in Figure 1, the earth source heat pump unit of this prior art comprises refrigeration or heats EGR, first to fourth pipeline 4-7, first to the 8th arm 14-21, air-conditioning system feed pipe 8, air-conditioning system return pipe 9, buried system and comes water pipe 10, buried system outlet pipe 11, air-conditioning system water circulating pump 12, buried systemic circulation water pump 13 and eight Steering valve A-H; Described refrigeration or heat EGR and be connected with each other by 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 first, second pipeline 4,5; One end of condenser 2 and the 3rd, the 4th pipeline 6,7 joins; The other end of first pipeline 4 is continuous with an end of first, second arm 14,15 simultaneously; The other end of second pipeline 5 is continuous with an end of the 3rd, the 4th arm 16,17 simultaneously; The other end of the 3rd pipeline 6 is continuous with an end of the 5th, the 6th arm 18,19 simultaneously; The other end of the 4th pipeline 7 is continuous with an end of the 7th, the 8th arm 20,21 simultaneously; The first, the other end of the 7th arm 14,20 links to each other with air-conditioning system return pipe 9 simultaneously; The second, the other end of the 8th arm 15,21 comes water pipe 10 to link to each other with buried system simultaneously; Three, the 5th arm 16,18 links to each other with air-conditioning system feed pipe 8 simultaneously; And 17,19 of the 4th, the 6th arms and buried system outlet pipe 11 join; Be separately installed with a Steering valve A-H on each arm 14-21; Air-conditioning system water circulating pump 12 is installed on the air-conditioning system return pipe 9; Buried systemic circulation water pump 13 then is arranged on buried system to be come on the water pipe 10.
During summer cooling, from 12 ℃ of backwater of air-conditioning system under the effect of air-conditioning system water circulating pump 12 successively through air-conditioning system return pipe 9, first arm 14, Steering valve A and first pipeline, 4 inflow evaporators 3, Steering valve E on second arm 15 closes at this moment, this water will carry out heat exchange with the refrigerant that flows in the evaporimeter 3, thereby water temperature is down to 7 ℃, then successively through second pipeline 5, the 3rd arm 16, Steering valve B and air-conditioning system feed pipe 8 flow back to air-conditioning system, Steering valve F on the 4th arm 17 closes at this moment, thereby realizes the refrigeration to the interior space.Meanwhile, from buried system and under the effect of buried systemic circulation water pump 13, come water pipe 10 through buried system to the buried system cold water of the earth heat radiation successively, the 8th arm 21, Steering valve H and the 4th pipeline 7 flow into condenser 2, Steering valve D on the 7th arm 20 closes at this moment, this water will carry out heat exchange with the refrigerant that flows in the condenser 2, thereby water temperature is raise, then successively through the 3rd pipeline 6, the 6th arm 19, Steering valve G and buried system outlet pipe 11 flow back to buried system, Steering valve C on the 5th arm 18 closes at this moment, circulates so repeatedly.And refrigeration or the operation principle that heats EGR are by same prior art.
During Winter heat supply, from 40 ℃ of backwater of air-conditioning system under the effect of air-conditioning system water circulating pump 12 successively through air-conditioning system return pipe 9, the 7th arm 20, Steering valve D and the 4th pipeline 7 flow into condenser 2, this water will carry out heat exchange with the refrigerant that flows in the condenser 2, thereby water temperature is increased to 45 ℃, Steering valve H on the 8th arm 21 closes at this moment, then successively through the 3rd pipeline 6, the 5th arm 18, Steering valve C and air-conditioning system feed pipe 8 flow back to air-conditioning system, Steering valve G on the 6th arm 19 closes at this moment, thereby realizes heating the interior space.Meanwhile, from buried system and under the effect of buried systemic circulation water pump 13, come water pipe 10 through buried system to the buried system hot water of the earth heat absorption successively, second arm 15, Steering valve E and first pipeline, 4 inflow evaporators 3, Steering valve A on first arm 14 closes at this moment, this water will carry out heat exchange and heat release with the refrigerant that flows in the evaporimeter 3, thereby water temperature is reduced, then successively through second pipeline 5, the 4th arm 17, Steering valve F and buried system outlet pipe 11 flow back to buried system, Steering valve B on the 3rd arm 16 closes at this moment, circulates so repeatedly.And refrigeration or the operation principle that heats EGR are by same prior art.
But, there is following point in the earth source heat pump unit of this prior art: as mentioned above, each earth-source hot-pump system needs to be equipped with air-conditioning system water circulating pump 12 and 13 two water pumps of buried systemic circulation water pump, wherein air-conditioning system water circulating pump 12 is to be responsible for giving air-conditioner in the building with the delivery of the cold water of earth source heat pump unit preparation in summer or preparation in winter, to realize summer cooling or heat supply in winter, the function of buried systemic circulation water pump 13 is that the heat transfer medium in the buried system is constantly offered the earth source heat pump unit, be to offer condenser 2 when freezing summer, and the heat that will produce will freeze the time is by the ground heat exchanger people's the earth that looses, then offer evaporimeter 3 during winter heating, and the cold that will produce will heat the time is by the ground heat exchanger people's the earth that looses, and when the earth source heat pump unit operation, air-conditioning system water circulating pump 12 and buried systemic circulation water pump 13 all must operations.But; type should be considered the demand that can satisfy weather maximum cooling amount of air-conditioning when the hottest when the earth source heat pump unit selected; satisfy simultaneously the demand of weather maximum heating load when the coldest again; so because climate reasons; the earth source heat pump unit most of the time all is to move under part load condition; when being the compressor 1 in the earth source heat pump unit and move, the time and unload shutdown.If compressor 1 is out of service, the words of buried systemic circulation water pump 13 continuous services can cause the waste of the energy undoubtedly.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of earth source heat pump unit control device of good energy-conserving effect.
In order to achieve the above object, the earth source heat pump unit that provides of the utility model comprises microcontroller, temperature sensor, power supply, input Acquisition Circuit, first output control circuit and second output control circuit with control device; Wherein temperature sensor is installed on the air-conditioning system return pipe, and links to each other with microcontroller by the input Acquisition Circuit; The input Acquisition Circuit mainly is made up of input filtering shaping circuit and analog-digital converter, is used for the analog signal conversion of temperature sensor collection is become data signal, and sends microcontroller to; Microcontroller also links to each other with second output control circuit with first output control circuit simultaneously; First output control circuit and second output control circuit respectively with compressor on control device and the control device on the buried systemic circulation water pump join, form by promoting circuit and power relay, be used for control signal control compressor and buried systemic circulation pump working according to microcontroller; Power supply then provides operating current for other parts in the The whole control device.
Described microcontroller adopts the AT89S52 8-bit microcontroller.
The earth source heat pump unit control device that the utility model provides is to utilize temperature sensor on it to detect the return water temperature of air-conditioning system in real time, and decide the start and stop of compressor and buried systemic circulation water pump according to the temperature threshold scope that configures in return water temperature and the microcontroller, after compressor unloading was shut down, buried systemic circulation water pump was also out of service; Because water temperature changes when needing to start compressor, the buried systemic circulation water pump of control is opened operation earlier, opens compressor again, can make buried systemic circulation water pump along with compressor is interrupted operation like this, therefore can reduce the energy consumption of whole system significantly, and effect is fairly obvious.
Description of drawings
Fig. 1 is a kind of earth source heat pump set structure schematic diagram of prior art.
Fig. 2 constitutes block diagram for the earth source heat pump unit that the utility model provides with control device.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the earth source heat pump unit that the utility model provides is elaborated with control device.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 provides of the utility model comprises microcontroller 30, temperature sensor 31, power supply 32, input Acquisition Circuit 33, first output control circuit 34 and second output control circuit 35 with control device; Wherein temperature sensor 31 is installed on the air-conditioning system return pipe 9, and links to each other with microcontroller 30 by input Acquisition Circuit 33; Input Acquisition Circuit 33 mainly is made up of input filtering shaping circuit and analog-digital converter, is used for the analog signal conversion that temperature sensor 31 is gathered is become data signal, and sends microcontroller 30 to; Microcontroller 30 also links to each other with second output control circuit 35 with first output control circuit 34 simultaneously; First output control circuit 34 and second output control circuit 35 respectively with compressor 1 on control device and the control device on the buried systemic circulation water pump 13 join, form by promoting circuit and power relay, be used for control signal control compressor 1 and 13 work of buried systemic circulation water pump according to microcontroller 30; 32 of power supplys provide operating current for other parts in the The whole control device.
Described microcontroller 30 adopts the AT89S52 8-bit microcontroller.
The earth source heat pump unit that now the utility model is provided is described below with the control device operation principle: before using this control device, at first utilize input unit in microcontroller 30, to configure the return water temperature upper limit threshold T1 of winter air-conditioning system and lower threshold T2 by the staff, the return water temperature upper limit threshold T3 of summer air-conditioning system and lower threshold T4.In the earth-source hot-pump system running, the temperature sensor 31 that is installed on the air-conditioning system return pipe 9 will be gathered the return water temperature T of air-conditioning system in real time, and send input Acquisition Circuit 33 to.The analog signal conversion that input Acquisition Circuit 33 is gathered said temperature sensor 31 becomes data signal, sends microcontroller 30 then to.Microcontroller 30 after receiving above-mentioned signal compares itself and predefined temperature threshold, in the winter time, if the return water temperature T of detected air-conditioning system is greater than T1, or in summer, the return water temperature T of air-conditioning system is less than T3, send instruction to first output control circuit 34 and second output control circuit 35 immediately, first output control circuit 34 and second output control circuit 35 receive the operation that stops compressor 1 and buried systemic circulation water pump 13 after this instruction immediately by the control device on the control device on the compressor 1 and the buried systemic circulation water pump 13; After operation after a while, in the winter time, if the return water temperature T of detected air-conditioning system is less than T2, or in summer, the return water temperature T of air-conditioning system is greater than T4, send instruction to second output control circuit 35 immediately, second output control circuit 35 is opened buried systemic circulation water pump 13 after time-delay after a while by the control device on the buried systemic circulation water pump 13 after receiving this instruction immediately, microcontroller 30 sends instruction to first output control circuit 34 again, first output control circuit 34 is opened compressor 1 by the control device on the compressor 1 after receiving this instruction immediately, so repeatedly.
In addition, therefore the same prior art of the operation principle of earth-source hot-pump system repeats no more here.

Claims (2)

1. earth source heat pump unit control device is characterized in that: described earth source heat pump unit comprises microcontroller (30), temperature sensor (31), power supply (32), input Acquisition Circuit (33), first output control circuit (34) and second output control circuit (35) with control device; Wherein temperature sensor (31) is installed on the air-conditioning system return pipe (9), and links to each other with microcontroller (30) by input Acquisition Circuit (33); Input Acquisition Circuit (33) mainly is made up of input filtering shaping circuit and analog-digital converter, is used for the analog signal conversion that temperature sensor (31) is gathered is become data signal, and sends microcontroller (30) to; Microcontroller (30) also links to each other with second output control circuit (35) with first output control circuit (34) simultaneously; First output control circuit (34) and second output control circuit (35) respectively with compressor (1) on control device and the control device on the buried systemic circulation water pump (13) join, form by promoting circuit and power relay, be used for control signal control compressor (1) and buried systemic circulation water pump (13) work according to microcontroller (30); Power supply (32) then provides operating current for other parts in the The whole control device.
2. earth source heat pump unit control device according to claim 1 is characterized in that: described microcontroller (30) employing AT89S52 8-bit microcontroller.
CN 201320106695 2013-03-08 2013-03-08 Control device for GSHP (Ground Source Heat Pump) unit Expired - Fee Related CN203147985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320106695 CN203147985U (en) 2013-03-08 2013-03-08 Control device for GSHP (Ground Source Heat Pump) unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320106695 CN203147985U (en) 2013-03-08 2013-03-08 Control device for GSHP (Ground Source Heat Pump) unit

Publications (1)

Publication Number Publication Date
CN203147985U true CN203147985U (en) 2013-08-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216921A (en) * 2013-03-08 2013-07-24 天津美意空调设备销售有限公司 Control device for ground source heat pump unit
CN103498789A (en) * 2013-09-30 2014-01-08 南方英特空调有限公司 Compressor start and stop testing equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216921A (en) * 2013-03-08 2013-07-24 天津美意空调设备销售有限公司 Control device for ground source heat pump unit
CN103498789A (en) * 2013-09-30 2014-01-08 南方英特空调有限公司 Compressor start and stop testing equipment

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180117

Address after: 300384 in Tianjin Binhai high tech Zone Huayuan Industrial Park No. 8 Alex Hua Tian Road, C-610, Haitai information square 611 room 612

Patentee after: Tianjin Mammoth Electromechanical Equipment Engineering Co., Ltd.

Address before: 300384 Tianjin Alex Hua Tian Nankai District Huayuan Industrial District Road No. 8 Haitai Information Plaza C-610

Patentee before: Tianjin Meiyi Air-Conditioner Equipment Sales Co., Ltd.

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: 20130821

Termination date: 20200308