CN204388420U - Liquid-spraying type earth source heat pump unit - Google Patents
Liquid-spraying type earth source heat pump unit Download PDFInfo
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- CN204388420U CN204388420U CN201420854108.2U CN201420854108U CN204388420U CN 204388420 U CN204388420 U CN 204388420U CN 201420854108 U CN201420854108 U CN 201420854108U CN 204388420 U CN204388420 U CN 204388420U
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Abstract
The utility model discloses liquid-spraying type earth source heat pump unit, it comprises source pump, from source, the ground circulation line of source, ground heat absorption and the user's circulation line for the preparation of hot water; Source pump comprises compressor (1), condenser (2), throttling arrangement, evaporimeter (4) and PLC chip; Source pump also comprises temperature sensor (5), hydrojet magnetic valve (6) and hydrojet capillary (7), temperature sensor (5) is positioned at the outlet of compressor (1), the entrance of hydrojet magnetic valve (6) and condenser (2) outlet, hydrojet magnetic valve (6) outlet is communicated with hydrojet capillary (7) entrance, hydrojet capillary (7) outlet is communicated with compressor (1) entrance, and hydrojet magnetic valve (6) and temperature sensor (5) are all electrically connected with PLC chip.This unit energy prevents the excessive discharge temperature of compressor (1).
Description
Technical field
The utility model relates to field of air conditioning, is specifically a kind of liquid-spraying type earth source heat pump unit.
Background technology
Earth source heat pump unit refers to, from source, ground as absorbed heat soil, underground water, and adopts heat pump principle, to the place needed as the air-conditioning system of target structures thing heat.Earth source heat pump both can freeze and also can heat, and heat is transferred to building from Di Yuan by general winter, and cold is transferred to building from Di Yuan by summer.And the utility model relates to is only earth-source hot-pump system under winter heating's pattern.Because soil in winter is higher than average temperature of air about 17 degree, be outstanding source heat pump heat, this temperature characterisitic makes its thermal efficiency ratio traditional air conditioner want high a lot, therefore energy-efficient.
The earth source heat pump unit of prior art comprises three parts, i.e. source circulation line, source pump and user's circulation line.
Source pump comprises compressor, condenser, throttling arrangement and evaporimeter, the outlet of compressor is communicated with condenser inlet, condensator outlet is communicated with throttling arrangement entrance, and throttling arrangement outlet is communicated with evaporator inlet, and evaporator outlet is communicated with suction port of compressor.Refrigerant circulates under the effect of compressor, is first become high temperature and high pressure gas by compressor compresses, within the condenser heat release be condensed into liquid refrigerants, then through throttling arrangement throttling, then in evaporimeter, heat absorption flashes to gas, finally enters compressor, completes circulation.
Source, ground circulation line comprises and the first heat exchange coil of the evaporator heat exchange of source pump, the first outlet pipe, the first return pipe and the ground burying heat exchange tube with underground heat exchange, the outlet of the first heat exchange coil is communicated with the entrance of the first return pipe, the outlet of the first return pipe is communicated with the entrance of ground burying heat exchange tube, the outlet of ground burying heat exchange tube is communicated with the entrance of the first outlet pipe, and the outlet of the first outlet pipe is communicated with the entrance of the first heat exchange coil.Water circulates in this pipeline as working medium, is absorbed by heat and be discharged into the evaporimeter of source pump from source, ground as soil, surface water etc.
User's circulation line is by the second heat exchange coil of the condenser heat exchange with source pump, the second outlet pipe, the second return pipe and water tank, the outlet of the second heat exchange coil is communicated with the second return pipe entrance, second return pipe outlet is communicated with tank entry, tank outlet is communicated with the second outlet pipe entrance, and the second outlet pipe outlet is communicated with the second heat exchange coil entrance.In this circulation line, water absorbs heat into hot water from condenser in the second coil pipe, then flows in water tank for user.
But there is following defect in the earth-source hot-pump system of prior art: when user uses hot water in life, often wish that the water temperature of hot water can be higher as far as possible, especially in the winter of cold, like this, the heating load of unit certainly will be increased, when load increases, compressor rotary speed must be improved to increase cold medium flux to satisfy the demands.But along with compressor rotary speed improves, delivery temperature is corresponding improve also, cold-producing medium and lubricants performance are declined, and then reduces compressor efficiency, affect the reliability and stability of compressor operating.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of excessive discharge temperature that can prevent compressor, to protect the liquid-spraying type earth source heat pump unit of compressor.
Technical solution of the present utility model is, provides a kind of liquid-spraying type earth source heat pump unit with following structure, and it comprises source pump, from source, the ground circulation line of source, ground heat absorption and the user's circulation line for the preparation of hot water; Source pump comprises compressor, condenser, throttling arrangement, evaporimeter and PLC chip; Compressor outlet is communicated with condenser inlet, and condensator outlet is communicated with throttling arrangement entrance, and throttling arrangement outlet is communicated with evaporator inlet, and evaporator outlet is communicated with suction port of compressor; It also comprises temperature sensor, hydrojet magnetic valve and hydrojet capillary, temperature sensor is positioned at the outlet of compressor, the entrance of hydrojet magnetic valve is communicated with condensator outlet, hydrojet electromagnetic valve outlet is communicated with hydrojet capillary inlet, hydrojet capillary outlet is communicated with suction port of compressor, and hydrojet magnetic valve and temperature sensor are all electrically connected with PLC chip.
The course of work of this unit is: during this unit operation, the delivery temperature of compressor outlet measured in real time by temperature sensor, and testing result is sent to PLC chip, 105 DEG C are reached once delivery temperature, PLC chip just controls hydrojet magnetic valve and opens, just compressor air suction mouth and hydrojet is directly sprayed into along the hydrojet arm be made up of hydrojet magnetic valve and hydrojet capillary, to reduce the delivery temperature of compressor from the small part condensator outlet liquid refrigerants out; When temperature sensor detects that the delivery temperature of compressor drops to 95 DEG C, close hydrojet magnetic valve and stop hydrojet.
From analyzing above, the utility model liquid-spraying type earth source heat pump unit compared with prior art, has the following advantages:
This unit energy effectively prevents the excessive discharge temperature of compressor, thus protection compressor, ensure the operation that unit is continual and steady, prepare high-quality hot water, the maximum water temperature that this unit heats can reach 55 DEG C.
As improvement, the evaporimeter of source pump is shell and tube exchanger, the shell of evaporimeter is provided with a communicating pipe, a ball float is provided with in communicating pipe, the liquid level sensor for detecting ball float height is provided with in communicating pipe, liquid level sensor is electrically connected with PLC chip, specifically, this liquid level sensor can measure ball float height, and just equal liquid level according to law of connected vessels ball float height, like this, liquid level sensor accurately can record the liquid level in the package of evaporimeter, and the liquid level signal detected is converted to the signal of telecommunication feeds back to PLC chip, it is large that PLC chip controls opening of throttling arrangement by the difference analyzing feedback signal and setting value with this, turn down or keep.If it is on the low side to detect liquid level, by throttling arrangement as electric expansion valve is opened greatly, if it is higher to detect liquid level, electronic expansion valve opening is turned down, if detect liquid level just in time, electronic expansion valve opening keeps former aperture not regulate, therefore rely on this device, refrigerant feed liquid amount can be regulated according to actual liquid level, control heating capacity or the refrigerating capacity of whole unit.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of liquid-spraying type earth source heat pump unit of the present utility model.
Fig. 2 is the side-looking structural representation of the evaporimeter of liquid-spraying type earth source heat pump unit of the present utility model.
Shown in figure 1, compressor, 2, condenser, 3, choke valve, 4, evaporimeter, 5, temperature sensor, 6, hydrojet magnetic valve, 7, hydrojet capillary, 8, communicating pipe, 9, ball float, 10, liquid level sensor.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Liquid-spraying type earth source heat pump unit of the present utility model as shown in Figure 1 and Figure 2, it comprises source pump, from source, the ground circulation line of source, ground heat absorption and the user's circulation line for the preparation of hot water.Source pump comprises compressor 1, condenser 2, throttling arrangement as choke valve 3, evaporimeter 4 and PLC chip.Compressor 1 outlet is communicated with condenser 2 entrance, and condenser 2 outlet is communicated with throttling arrangement entrance, and throttling arrangement outlet is communicated with evaporimeter 4 entrance, and evaporimeter 4 outlet is communicated with compressor 1 entrance.
This liquid-spraying type earth source heat pump unit also comprises temperature sensor 5, hydrojet magnetic valve 6 and hydrojet capillary 7.Temperature sensor 5 is positioned at the outlet of compressor 1 to detect the delivery temperature of compressor 1.The entrance of hydrojet magnetic valve 6 and condenser 2 outlet, hydrojet magnetic valve 6 outlet is communicated with hydrojet capillary 7 entrance, and hydrojet capillary 7 outlet is communicated with compressor 1 entrance.Hydrojet magnetic valve 6 and temperature sensor 5 are all electrically connected with PLC chip.
Compressor 1 is stepless adjustment screw rod formula compressor 1, is provided with current transducer in the electric cabinet of source pump, and compressor 1 is electrically connected with PLC chip, and PLC chip is electrically connected with current transducer.Like this, this device can detect compressor 1 running current in real time and be fed back to PLC chip, then by the cold load of this compressor 1 of PLC chip FEEDBACK CONTROL, to regulate refrigerating capacity or the heating capacity of unit as required voluntarily.The evaporimeter 4 of source pump is shell and tube exchanger, and the shell of evaporimeter 4 is provided with a communicating pipe 8, is provided with a ball float 9 in communicating pipe 8, is provided with the liquid level sensor 10 for detecting ball float 9 height communicating pipe 8.This liquid level sensor 10 is electrically connected with PLC chip.
Claims (2)
1. a liquid-spraying type earth source heat pump unit, it comprises source pump, from source, the ground circulation line of source, ground heat absorption and the user's circulation line for the preparation of hot water; Source pump comprises compressor (1), condenser (2), throttling arrangement, evaporimeter (4) and PLC chip; Compressor (1) outlet is communicated with condenser (2) entrance, condenser (2) outlet is communicated with throttling arrangement entrance, throttling arrangement outlet is communicated with evaporimeter (4) entrance, and evaporimeter (4) outlet is communicated with compressor (1) entrance; It is characterized in that: it also comprises temperature sensor (5), hydrojet magnetic valve (6) and hydrojet capillary (7), temperature sensor (5) is positioned at the outlet of compressor (1), the entrance of hydrojet magnetic valve (6) and condenser (2) outlet, hydrojet magnetic valve (6) outlet is communicated with hydrojet capillary (7) entrance, hydrojet capillary (7) outlet is communicated with compressor (1) entrance, and hydrojet magnetic valve (6) and temperature sensor (5) are all electrically connected with PLC chip.
2. liquid-spraying type earth source heat pump unit according to claim 1, it is characterized in that: the evaporimeter (4) of source pump is shell and tube exchanger, the shell of evaporimeter (4) is provided with a communicating pipe (8), being provided with a ball float (9) in communicating pipe (8), being provided with the liquid level sensor (10) for detecting ball float (9) height communicating pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854108.2U CN204388420U (en) | 2014-12-29 | 2014-12-29 | Liquid-spraying type earth source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854108.2U CN204388420U (en) | 2014-12-29 | 2014-12-29 | Liquid-spraying type earth source heat pump unit |
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| Publication Number | Publication Date |
|---|---|
| CN204388420U true CN204388420U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854108.2U Active CN204388420U (en) | 2014-12-29 | 2014-12-29 | Liquid-spraying type earth source heat pump unit |
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| CN (1) | CN204388420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106179A (en) * | 2018-01-18 | 2018-06-01 | 苏州奥天诚机械有限公司 | A kind of charging pile Special temp controller device |
-
2014
- 2014-12-29 CN CN201420854108.2U patent/CN204388420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106179A (en) * | 2018-01-18 | 2018-06-01 | 苏州奥天诚机械有限公司 | A kind of charging pile Special temp controller device |
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