CN104165422A - Water side heat exchange system, water source heat pump air conditioner and control method thereof - Google Patents
Water side heat exchange system, water source heat pump air conditioner and control method thereof Download PDFInfo
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- CN104165422A CN104165422A CN201310185049.4A CN201310185049A CN104165422A CN 104165422 A CN104165422 A CN 104165422A CN 201310185049 A CN201310185049 A CN 201310185049A CN 104165422 A CN104165422 A CN 104165422A
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Abstract
The invention discloses a water side heat exchange system, a water source heat pump air conditioner and a control method thereof. The water side heat exchange system comprises a water side heat exchanger, a water tank, a first electromagnetic valve and a controller, wherein the water tank is connected with the water side heat exchanger, and forms to a water circulating loop with the water side heat exchanger; the first electromagnetic valve is arranged in the water circulating loop to control the connection or disconnection of the water circulating loop; and the controller is connected with the first electromagnetic valve to start and shut down the first electromagnetic valve. According to the water side heat exchange system disclosed by the invention, when the water source heat pump air conditioner is located in a refrigeration mode, water in the water tank can absorb heat of the water side heat exchanger, and hot water in the water tank can be stored and used, so that the water source heat pump air conditioner has a better energy saving effect.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of water side heat-exchange system, water source heat pump air-conditioner and control method thereof.
Background technology
In the kind of refrigeration cycle that air-conditioning goes round and begins again, cold-producing medium can produce a large amount of heats, if this part heat is fully utilized, in daily life energy-saving field, has huge meaning.Air-cooled air conditioner is directly discharged to this part heat in atmosphere, and water resource heat pump air regulator unit is a kind ofly to utilize water to carry out hot cold exchange to be used as heat (cold) source, is not only can heat supply but also the power saving air conditioner system that can freeze.In the pump air regulator unit of hydro-thermal source, the water-side heat using mostly at present is plate type heat exchanger and double-tube heat exchanger, but, in the area of some colds of the north, when environment temperature is during lower than zero degree, the residual water in water-side heat the inside may freeze, blocking pipeline, in the upper system reliability of operation that affects when once starting, current way is to increase a draining valve in heat exchanger water route lower pipeline, by manually carrying out draining.This drainage pattern,
Operate cumbersome.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.
In view of this, the present invention need to provide a kind of water side heat-exchange system, and described water side heat-exchange system, can and utilize the hot water storage in water tank during in refrigeration mode at water source heat pump air-conditioner, realize energy-conservation object.
Further, the present invention need to provide a kind of water source heat pump air-conditioner with above-mentioned water side heat-exchange system, and this water source heat pump air-conditioner has good energy-saving effect.
The present invention also needs to provide a kind of control method of water source heat pump air-conditioner.
According to an aspect of the present invention, provide a kind of water side heat-exchange system, having comprised: water-side heat; Water tank, described water tank is connected with described water-side heat and is configured to water-flow circuit with described water-side heat; The first magnetic valve, described the first magnetic valve is located in described water-flow circuit to control the break-make of described water-flow circuit; And controller, described controller is connected to start with described the first magnetic valve and cuts out described the first magnetic valve.
Water side heat-exchange system according to an embodiment of the invention, at water source heat pump air-conditioner during in refrigeration mode, while being the outside heat release of water-side heat, water in water tank can absorb the heat of water-side heat, hot water in water tank can be stored and utilize, and makes water source heat pump air-conditioner have good energy-saving effect.
According to one embodiment of present invention, described water side heat-exchange system further comprises: check valve, described check valve is located between described water-side heat and described water tank, so that the water in described water-flow circuit circulates along predetermined direction.
According to one embodiment of present invention, described water side heat-exchange system further comprises: flowmeter, described flowmeter is located between the delivery port of described water-side heat and the water inlet of described water tank and with described controller and is connected, and to record, enters the flow of the water in water tank and flow information is sent to described controller.
According to one embodiment of present invention, described water side heat-exchange system further comprises: the first temperature sensor, described the first temperature sensor is located between the delivery port of described water-side heat and the water inlet of described water tank and with described controller and is connected, for detection of the leaving water temperature of described water-side heat, and temperature information is sent to described controller.
According to one embodiment of present invention, described water side heat-exchange system further comprises: the second magnetic valve, the discharge outlet of described the second electric valve and described water-side heat is connected and is connected with described controller, with according to the instruction unpack of controller with close described discharge outlet.
According to one embodiment of present invention, described water side heat-exchange system further comprises: the 3rd magnetic valve, described the 3rd magnetic valve is located at the water filling port place of described water-side heat and is connected with described controller, with according to the instruction unpack of controller with close described water filling port.
According to one embodiment of present invention, described water side heat-exchange system further comprises: electric expansion valve, described electric expansion valve is located at the water filling port place of described water-side heat and is connected with described controller, to regulate and to enter the water yield in described water-side heat according to the instruction of controller.
A kind of water source heat pump air-conditioner is provided according to a further aspect in the invention, comprises: compressor; Indoor air cooling heat exchanger, described indoor air cooling heat exchanger one end is connected with described compressor; Throttling arrangement, one end of described throttling arrangement is connected with the other end of described indoor air cooling heat exchanger; And above-mentioned water side heat-exchange system, one end of the described water-side heat of described water side heat-exchange system is connected with described throttling arrangement, and the other end is connected with described compressor.
Water source heat pump air-conditioner according to an embodiment of the invention, at water source heat pump air-conditioner during in refrigeration mode, while being the outside heat release of water-side heat, water in water tank can absorb the heat of water-side heat, hot water in water tank can be stored and utilize, and makes water source heat pump air-conditioner have good energy-saving effect.
Whether the control method that a kind of water source heat pump air-conditioner is provided in accordance with a further aspect of the present invention, comprises the following steps: S1: detect and have water to enter water tank by water-side heat; S2: if there is water to enter described water tank, when the water temperature in water tank is greater than the first predetermined temperature or in described water tank during lack of water, to described water-side heat moisturizing S3: if do not have water to enter described water tank, the residing outdoor temperature of water-side heat is detected, if outdoor environment temperature is less than zero, the outside draining of water-side heat.
According to an embodiment of the invention for the control method of water source heat pump air-conditioner, during the outside heat release of water-side heat, water in water tank can absorb the heat of water-side heat, and the hot water in water tank can be stored and utilize, and makes water source heat pump air-conditioner have good energy-saving effect.
According to one embodiment of present invention, in step S2, whether in water tank, water temperature is less than or equal in the first predetermined temperature or water tank water when sufficient, again detect and have water to enter water tank by water-side heat.
According to one embodiment of present invention, in S3, when outdoor environment temperature is more than or equal to zero degree, again detects and whether have water to enter water tank by water-side heat.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the structural representation of water side heat-exchange system according to an embodiment of the invention;
Fig. 2 is the structural representation of water source heat pump air-conditioner according to an embodiment of the invention;
Fig. 3 is the control method flow chart of water source heat pump air-conditioner according to an embodiment of the invention.
Reference numeral:
100 water side heat-exchange systems; 10 water-side heats; 20 water tanks; 30 tube connectors; 40 first magnetic valves; 300 indoor air cooling heat exchangers; 200 compressors; 50 check valves; 60 flowmeters; 70 first temperature sensors; 71 second temperature sensors; 41 second magnetic valves; 42 the 3rd magnetic valves; 80 electric expansion valves; 400 throttling arrangements; 90 water pumps.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
As shown in Figure 1, water side heat-exchange system 100, comprising: water-side heat 10, water tank 20, the first magnetic valve 40 and controller (not shown) according to an embodiment of the invention.
Particularly, water-side heat 10 can be connected in the refrigeration system of water source heat pump air-conditioner, water-side heat 10 can with indoor heat exchanger, be for example indoor air cooling heat exchanger 300, and the common refrigeration system that forms water source heat pump air-conditioner of compressor 200.Water tank 20 can be connected with water-side heat 10 and be configured to water-flow circuit with water-side heat, for example, can utilize water pump 90 that the interior water pump of water-side heat 10 is delivered in water tank 20.In other words, the common water-flow circuit that forms of water tank 20 and water-side heat 10, water can circulate between water tank 20 and water-side heat 10.The first magnetic valve 40 is located in water-flow circuit to control the break-make of water-flow circuit.Controller is connected to start with the first magnetic valve 40 and cuts out the first magnetic valve 40.In other words, controller can control as required the startup of the first magnetic valve 40 and cut out, thereby controls by 40 pairs of water circulation pipes of the first magnetic valve.
Water side heat-exchange system 100 according to an embodiment of the invention, at water source heat pump air-conditioner during in refrigeration mode, while being water-side heat 10 outside heat release, water in water tank 20 can absorb the heat of water-side heat 10, hot water in water tank can be stored and utilize, and makes water source heat pump air-conditioner have good energy-saving effect.
As shown in Figure 1, according to one embodiment of present invention, water side heat-exchange system 100 may further include check valve 50, and check valve 50 is located between water-side heat 10 and water tank 20, so that the water in water-flow circuit circulates along predetermined direction.For example, as shown in Figure 1, water-side heat 10 can be connected by two tube connectors 30 with water tank 20, a tube connector 30 is provided with check valve 50 therein, be understandable that, the tube connector that is provided with check valve 50 is connected with the delivery port of water tank 20, thus, can determine the water circulation direction of water-flow circuit.
As shown in Figure 1, according to one embodiment of present invention, water side heat-exchange system 100 may further include flowmeter 60, flowmeter 60 is located between the delivery port of water-side heat 10 and the water inlet of water tank 20 and is connected with controller, to record, enters the flow of the water in water tank 20 and flow information is sent to controller.Thus, controller can control by controlling the first magnetic valve 40 water yield size entering in water tank 20 according to flow information.
As shown in Figure 1, according to one embodiment of present invention, water side heat-exchange system 100 may further include the first temperature sensor 70, the first temperature sensor 70 can be located between the delivery port of water-side heat 10 and the water inlet of water tank 20 and be connected with controller, for detection of the leaving water temperature of water-side heat 10, and temperature information is sent to controller.Thus, can determine whether to water-side heat 10, add water to reduce the water temperature in water-side heat 10 according to the leaving water temperature value of water-side heat 10.
As shown in Figure 1, according to one embodiment of present invention, the discharge outlet that water side heat-exchange system 100 may further include the electric valve 41 of the second magnetic valve 41, the second and water-side heat 10 is connected and is connected with controller, with according to the instruction unpack of controller with close discharge outlet.It should be noted that; the discharge outlet is here not corresponding with water tank 20; this discharge outlet is for discharging when water-side heat 10 is under off working state, and the external temperature of water-side heat 10 is during lower than zero degrees celsius, for water-side heat 10 is protected and arranged.
As shown in Figure 1, according to one embodiment of present invention, water side heat-exchange system 100 may further include the 3rd magnetic valve 42, the three magnetic valves 42 and is located at the water filling port place of water-side heat 10 and is connected with controller, with according to the instruction unpack of controller with close water filling port.Thus, the control that can pass through controller is as required to the interior water filling of water-side heat 10.
As shown in Figure 1, according to one embodiment of present invention, water side heat-exchange system 100 may further include electric expansion valve 80, and electric expansion valve 80 is located at the water filling port place of water-side heat 10 and is connected with controller, to regulate and to enter the water yield in water-side heat 10 according to the instruction of controller.Thus, by controlling the size of the aperture of electric expansion valve 80, can realize entering the automatic control of the water yield in water-side heat 10, to realize by water injection rate in water-side heat, water temperature be controlled automatically.
Be understandable that, the discharge outlet of water-side heat 10 is located at its bottom, be connected with the second magnetic valve 41 use pipelines, in another outside water side heat-exchange system 100, can also establish the first temperature sensor 70, flowmeter 60, electric expansion valve 80, by detecting each parameter value, whole water side heat-exchange system 100 is controlled, can improve water side heat-exchange system 100 reliabilities of operation, the hot water that the water tank 20 simultaneously increasing can produce water source heat pump air-conditioner is used, and reaches energy-conservation effect.
Below with reference to accompanying drawing, simply describe according to the course of work of the water side cooling system 100 of the embodiment of the present invention.
As shown in Figure 1; under cold operation condition; by flowmeter 60, detect the discharge of water-side heat 10, and the information of discharge is sent to controller, when discharge is zero; be that system is in stopped status; by the first temperature sensor 70, detect outdoor environment temperature, when outdoor environment temperature is less than zero degree, the water of opening in 41 pairs of water-side heats 10 of the second magnetic valve carries out emptying; prevent that the water in water-side heat 10 from freezing under worst cold case, blocking pipeline.
When opening refrigeration mode, first open the first magnetic valve 40, detect the discharge of water side heat-exchange system 100, in order to prevent that lack of water from allowing to cause system high pressure protection, discharge only detected when non-vanishing, water-side heat 10 could normally start, after the heat of the water absorption refrigerant in water tank 20, getting back to water tank 20 stores for user, the continuous circulating-heating of water in water tank 20 is to leaving water temperature during higher than predetermined temperature, higher than design, allow maximum or the interior lack of water of water tank 20, while discharge being detected and be zero, close the first magnetic valve 40, and open magnetic valve the 3rd magnetic valve 42, use pipe network water supply, and regulate aperture by electric expansion valve 80, leaving water temperature is controlled in user's scope of application, and do not exceed design and allow maximum, when leaving water temperature is too high, increase aperture, when leaving water temperature is too low, reduce aperture.
As shown in Figure 2, water source heat pump air-conditioner, comprising: compressor 200, indoor air cooling heat exchanger 300, throttling arrangement 400 and water side heat-exchange system 100 as described in the above embodiment the present invention according to an embodiment of the invention.
Particularly, one end of indoor air cooling heat exchanger 300 is connected with compressor 200, one end of throttling arrangement 400 is connected with the other end of indoor air cooling heat exchanger 300, one end of the water-side heat 10 of water side heat-exchange system 100 is connected with throttling arrangement 400, the other end is connected with compressor 200, can construct thus the refrigeration system of water source heat pump air-conditioner.
Water source heat pump air-conditioner according to an embodiment of the invention, at water source heat pump air-conditioner during in refrigeration mode, while being water-side heat 10 outside heat release, water in water tank 20 can absorb the heat of water-side heat 10, hot water in water tank can be stored and utilize, and makes water source heat pump air-conditioner have good energy-saving effect.
Be understandable that, water source heat pump air-conditioner can also comprise that the interior air cooling heat exchanger of adjacent chamber arranges and the second temperature sensor 71, the second temperature sensors 71 also can be connected with controller, for detection of indoor temperature.
Below with reference to Fig. 2, the course of work of the water source heat pump air-conditioner of embodiments of the invention is simply described.
As shown in Figure 2; under cold operation condition; by flowmeter 60, detect the discharge of water-side heat 10; and the information of discharge is sent to controller; when discharge is zero; be that system is in stopped status; by the first temperature sensor 70, detect outdoor environment temperature; when outdoor environment temperature is less than zero degree; the water of opening in 41 pairs of water-side heats 10 of the second magnetic valve carries out emptying; prevent that the water in water-side heat 10 from freezing under worst cold case, blocking pipeline, even can damage heat exchanger in serious situation.
When opening refrigeration mode, first open the first magnetic valve 40, detect the discharge of water side heat-exchange system 100, in order to prevent that lack of water from allowing to cause system high pressure protection, discharge only detected when non-vanishing, water-side heat 10 could normally start, after the heat of the water absorption refrigerant in water tank 20, getting back to water tank 20 stores for user, the continuous circulating-heating of water in water tank 20 is to leaving water temperature during higher than predetermined temperature, higher than design, allow maximum or the interior lack of water of water tank 20, while discharge being detected and be zero, close the first magnetic valve 40, and open magnetic valve the 3rd magnetic valve 42, use pipe network water supply, and regulate aperture by electric expansion valve 80, leaving water temperature is controlled in user's scope of application, and do not exceed design and allow maximum, when leaving water temperature is too high, increase aperture, when leaving water temperature is too low, reduce aperture.
As shown in Figure 3, for the control method of water source heat pump air-conditioner, comprise the following steps according to an embodiment of the invention:
S1: detect and whether have water to enter water tank by water-side heat.For example can measure by the flowmeter being arranged between water tank and water-side heat.S2: if there is water to enter described water tank, when the temperature T 2 of water tank is greater than the first predetermined temperature T3 or in water tank during lack of water, to water-side heat moisturizing.By moisturizing in water-side heat, can reduce the temperature of the water in water-side heat and water tank.Be understandable that water tank is not totally enclosed water tank, with taking as required the water in water tank, and can discharge outward from trend water tank after the arrival of the water in water tank predetermined value, thus, can guarantee under any circumstance can in water tank, supply water.S3: if do not have water to enter described water tank, the residing outdoor temperature of water-side heat is detected, if outdoor environment temperature is less than zero, the outside draining of water-side heat, to avoid the immobilising water freezing in water-side heat.
According to an embodiment of the invention for the control method of water source heat pump air-conditioner, during the outside heat release of water-side heat, water in water tank can absorb the heat of water-side heat, and the hot water in water tank can be stored and utilize, and makes water source heat pump air-conditioner have good energy-saving effect.
According to one embodiment of present invention, in step S2, whether in water tank, water temperature is less than or equal in the first predetermined temperature or water tank water when sufficient, again detect and have water to enter water tank by water-side heat.And not to moisturizing in water-side heat.
According to one embodiment of present invention, in step S3, when outdoor environment temperature is more than or equal to zero degree, again detects and whether have water to enter water tank by water-side heat.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that, in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (11)
1. a water side heat-exchange system, is characterized in that, comprising:
Water-side heat;
Water tank, described water tank is connected with described water-side heat and is configured to water-flow circuit with described water-side heat;
The first magnetic valve, described the first magnetic valve is located in described water-flow circuit to control the break-make of described water-flow circuit; And
Controller, described controller is connected to start with described the first magnetic valve and cuts out described the first magnetic valve.
2. water side heat-exchange system according to claim 1, is characterized in that, further comprises:
Check valve, described check valve is located between described water-side heat and described water tank, so that the water in described water-flow circuit circulates along predetermined direction.
3. water side heat-exchange system according to claim 1, is characterized in that, further comprises:
Flowmeter, described flowmeter is located between the delivery port of described water-side heat and the water inlet of described water tank and with described controller and is connected, and to record, enters the flow of the water in water tank and flow information is sent to described controller.
4. water side heat-exchange system according to claim 1, is characterized in that, further comprises:
The first temperature sensor, described the first temperature sensor is located between the delivery port of described water-side heat and the water inlet of described water tank and with described controller and is connected, for detection of the leaving water temperature of described water-side heat, and temperature information is sent to described controller.
5. water side heat-exchange system according to claim 1, it is characterized in that, further comprise: the second magnetic valve, the discharge outlet of described the second electric valve and described water-side heat is connected and is connected with described controller, with according to the instruction unpack of controller with close described discharge outlet.
6. water side heat-exchange system according to claim 1, it is characterized in that, further comprise: the 3rd magnetic valve, described the 3rd magnetic valve is located at the water filling port place of described water-side heat and is connected with described controller, with according to the instruction unpack of controller with close described water filling port.
7. water side heat-exchange system according to claim 1, it is characterized in that, further comprise: electric expansion valve, described electric expansion valve is located at the water filling port place of described water-side heat and is connected with described controller, to regulate and to enter the water yield in described water-side heat according to the instruction of controller.
8. a water source heat pump air-conditioner, is characterized in that, comprising:
Compressor;
Indoor air cooling heat exchanger, described indoor air cooling heat exchanger one end is connected with described compressor;
Throttling arrangement, one end of described throttling arrangement is connected with the other end of described indoor air cooling heat exchanger; And
Water side heat-exchange system as described in any one in claim 1-7, one end of the described water-side heat of described water side heat-exchange system is connected with described throttling arrangement, and the other end is connected with described compressor.
9. a control method for water source heat pump air-conditioner, is characterized in that, comprises the following steps:
S1: detect and whether have water to enter water tank by water-side heat;
S2: if there is water to enter described water tank, when the temperature of water tank is greater than the first predetermined temperature or in described water tank during lack of water, to described water-side heat moisturizing;
S3: if do not have water to enter described water tank, the residing outdoor temperature of water-side heat is detected, if outdoor environment temperature is less than zero, the outside draining of water-side heat.
10. the control method of water source heat pump air-conditioner according to claim 9, is characterized in that, in step S2, whether in water tank, water temperature is less than or equal in the first predetermined temperature or water tank water when sufficient, again detect and have water to enter water tank by water-side heat.
Whether the control method of 11. water source heat pump air-conditioners according to claim 9, is characterized in that, in step S3, when outdoor environment temperature is more than or equal to zero degree, again detects and have water to enter water tank by water-side heat.
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| CN201310185049.4A CN104165422B (en) | 2013-05-17 | 2013-05-17 | Water side heat-exchange system, water source heat pump air-conditioner and control method thereof |
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| CN201310185049.4A CN104165422B (en) | 2013-05-17 | 2013-05-17 | Water side heat-exchange system, water source heat pump air-conditioner and control method thereof |
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| CN104165422B CN104165422B (en) | 2016-12-28 |
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