CN201392012Y - Energy-saving air source water heater - Google Patents

Energy-saving air source water heater Download PDF

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Publication number
CN201392012Y
CN201392012Y CN200920009060U CN200920009060U CN201392012Y CN 201392012 Y CN201392012 Y CN 201392012Y CN 200920009060 U CN200920009060 U CN 200920009060U CN 200920009060 U CN200920009060 U CN 200920009060U CN 201392012 Y CN201392012 Y CN 201392012Y
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pipeline
air source
heat
water heater
source water
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CN200920009060U
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伊万·安沃德森
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Abstract

An object of the utility model is to provide a follow-on air source water heater to further reduce the energy consumption of current air source water heater, prolong the life of complete machine. The energy-saving air source water heater comprises a compressor, a four-way valve, a heat exchange device, a throttling device, an evaporator, a fan and a working medium in a pipeline formed by the devices (except the fan), wherein particularly, a third interface of the four-way valve is blocked; a fourth interface pipeline of the four-way valve is connected to a pipeline between the throttling device and the evaporator; the evaporator outlet line is connected to the compressor inlet. Compared with the similar products, the air source water heater has the most obvious advantage that the air source water heater obtains excellent energy-saving effect without more cost investment. In addition, the machine adopts a series of protection measures for the compressor, so that the service life of the whole machine is longer, and the maintenance cost is lower.

Description

The energy-saving air source water heater
Technical field
The utility model relates to a kind of air source hot water production device, relates in particular to a kind of energy-saving air source hot water production device, can be used for the supply of the warm or home-use hot water in the room of building interior.
Background technology
Air source water heater is the device that utilizes heat pump that water is heated, its operation principle is: a compression heat pump device, mainly containing evaporimeter, compressor, heat exchanger and throttling arrangement four parts forms, by allowing working medium constantly finish the thermodynamic cycle process of evaporation (draw heat in environment) → compression → condensation (emitting heat) → throttling → evaporate again, thereby with the transfer of heat in the environment in water, heat pump is absorbed the energy QA that stores in the surrounding medium when work in evaporimeter; Itself consumes part energy, i.e. compressor power consumption QB; Carry out heat release QC by duplex matter system in heat exchanger, QC=QA+QB this shows, the energy of heat pump output is the heat QA that compressor work QB and heat pump absorb from environment.Therefore, adopt heat pump techniques to produce hot water and can save a large amount of electric energy.Along with the raising of global various countries energy-saving and environmental protection consciousness, air source water heater is extended to all parts of the world gradually.
As shown in Figure 1, air source water heater generally is divided into outdoor main frame and indoor heat exchange water tank two parts, connects by pipeline between two parts.Outdoor main frame mainly is equipped with compressor 101, evaporimeter 501, throttling arrangement 401 and blower fan 601 etc.And indoor heat exchange water tank mainly heats by the water in 701 pairs of water tanks of heat release coil pipe or to the water in the heat absorption coil pipe that passes water tank with coiling.
But for the higher area of Position Latitude, winter is very cold, and therefore outdoor main frame can run into freezing problem.The wind net of evaporimeter usually can be stopped up by frost, is durability and the high efficiency of guaranteeing evaporimeter, must regularly defrost to evaporimeter.For this reason, the air source water heater with defrost function also comprises a cross valve 202, its pipeline schematic diagram as shown in Figure 2, this moment this air source water heater be in normal operating conditions, working medium flows to heat release coil pipe 702 earlier from compressor 102.When needs defrost to the wind net, as shown in Figure 3, cross valve 202 will change the trend of working medium, make the working medium of high temperature flow to evaporimeter 502 earlier from compressor 102, thereby make its surperficial frost dissolve.But, this circuit design still has its weak point: defrosting is when carrying out, and evaporimeter is by cold heating the time, and the heat release coil pipe of indoor heat exchange water tank can be cold by thermal change, makes water tank temperature reduce; The defrosting finish after, must make again temperature the heat release coil pipe of step-down heat up again, the obvious like this working time that can prolong compressor, the waste electric energy.In addition, low excessively environment temperature can make the working medium temperature of the evaporimeter of flowing through cross low and liquefy, and after liquid working medium enters compressor, can cause to a certain degree infringement to compressor, makes the lifetime of compressor.
Summary of the invention
The purpose of this utility model is to provide a kind of follow-on air source water heater, with the energy consumption of the existing air source water heater of further reduction, prolongs the service life of complete machine.
For achieving the above object, the utility model has been taked following technical scheme:
The energy-saving air source water heater, comprise compressor, cross valve, heat-exchange device, throttling arrangement, evaporimeter, blower fan and the pipeline that constituted by said apparatus (except the blower fan) in working medium, wherein the compressor outlet pipeline is connected to cross valve first interface; The cross valve second interface pipeline is connected to the working medium inlet of heat-exchange device; The sender property outlet pipeline of heat-exchange device is connected to the throttling arrangement inlet; The throttling arrangement export pipeline is connected to evaporator inlet; Especially, cross valve the 3rd interface is blocked; Cross valve the 4th interface pipeline is connected on the pipeline between throttling arrangement and the evaporimeter; The evaporator outlet pipeline is connected to the suction port of compressor.
Usually can store 60%~70% of all working medium volumes in the heat-exchange device; this air source water heater improves on the pipeline principle basis of the air source water heater of existing band defrost function; main action by cross valve; make it in defrost process; only use the working medium except that heat-exchange device stores working medium, thereby can not make the temperature of heat-exchange device internal working medium reduce.In addition, defrost process operates on working medium still less, and then the efficient of compressor improves, and defrosting speed is faster, realizes purpose of energy saving.
For obtaining better energy-saving effect and protection compressor, also can do further to improve: the frame mode that the sender property outlet of heat-exchange device is adopted pipe-in-pipe to pipeline between the throttling arrangement inlet and evaporator outlet to the pipeline between the suction port of compressor to above technical scheme.Such way is in order that utilize the working medium of band waste heat to improve the temperature of the working medium that enters into compressor, one side prevents the working medium generation flash gas (FLASHGAS) that temperature is low excessively and compressor is caused damage, imports the reduction that the working medium with higher temperature means the compressor power consumption on the other hand.Except that the frame mode that adopts pipe-in-pipe, further improved procedure can be: adopt muff to be wrapped in the outside of the structural sections of pipe-in-pipe.
Sender property outlet at heat-exchange device connects a drier to the pipeline between the throttling arrangement inlet, can do further protection to compressor.
For evaporimeter with bypass conduit, equally can be with the frame mode of bypass conduit and throttling arrangement employing pipe-in-pipe.
The interface that the working medium inlet optimal selection heat release coil pipe of above-described heat-exchange device flows from top to bottom.This be because: high temperature refrigerant is imported the heat release coil pipe from top to bottom, can make that from the bottom up the leaving water temperature of water of stream is higher.
Heat-exchange device can select to have simultaneously the heat exchange water tank of heat release coil pipe and heat absorption coil pipe, can take following means to obtain best heat exchange effect for such heat exchange water tank: heat absorption coil pipe wherein is divided into flat section and the vertical section of crouching, flat section for sleeping in and vertical section are all the cylindrical spring shape, flat section and the vertical section pipeline of crouching communicates, with flat crouch section be arranged on the highest position of heat release coil temperature near.Because the upper temp of heat release coil pipe is higher, the flat coil pipe that crouches is set in this position can improve heat exchanger effectiveness greatly, avoids more heat energy to scatter and disappear from the pipeline beyond the heat-exchange device, thereby shortens the working time of compressor.
Above-mentioned heat release coil pipe and heat absorption coil pipe cooperate the pipeline with special construction, and can improve the efficient of heat-exchange device greatly: the outer wall at pipeline is provided with fin, at the inwall of pipeline the helical form flange are set.Fin and helical form flange all help increasing the contact area between liquid in pipe and the outer medium of pipe, and manage that inside spin shape flange more can cause the bump of liquid in pipe and the carrying out that promote heat exchange.
By heat release coil pipe and heat absorption coil pipe that the common pipeline with smooth internal walls and outer wall is made, even compressor is operated at full capacity, its water temperature is the highest can only to reach 55 ℃.But according to the regulation of European Union, the water in the machine should be able to reach more than 65 ℃ with kill bacteria, and common like this air source water heater need increase electric heater at the heat-exchange device place satisfying the requirement of pipeline sterilization, but this has increased the consumption of electric energy beyond doubt.The design of air source water heater, heat exchange water tank and pipeline after adopt improving, high energy makes water temperature reach 90 ℃, and in other words, if target temperature value is 65 ℃, the machine after then improving will obtain extraordinary power consumption control effect.
The interface opposite with heat-exchange device, that above-described evaporator inlet optimal selection evaporimeter flows from the bottom up.This be because: in defrost process, high temperature refrigerant flows from the evaporimeter bottom toward top, and the wind net defrosting of the device that can avoid evaporating is not exclusively.
If high temperature refrigerant flows from evaporimeter top toward the bottom, then the top frost of dissolving might be frozen on the bottom of wind net or base plate once more, so general machine can increase an electro-heat equipment on the base plate of wind net, but this means that defrost process will use more electric energy.But then can avoid this problem by above means.
In addition, blower fan can adopt frequency conversion fan, reaches energy-saving effect to greatest extent.
This air source water heater compared with similar products, the most tangible advantage is that it does not carry out more cost input and has obtained superior energy-saving effect.This machine has been taked a series of safeguard measures to compressor in addition, makes the complete machine longer service life, and maintenance cost is lower.
Description of drawings
Fig. 1 is that prior art is not with the pipeline schematic diagram of the air source water heater of defrost function;
Fig. 2 is the pipeline schematic diagram of the air source water heater of prior art band defrost function when being in normal heat production state;
Fig. 3 is the pipeline schematic diagram of the air source water heater of prior art band defrost function when being in defrost state;
Fig. 4 is the pipeline schematic diagram of the utility model embodiment 1 when being in normal heat production state;
Fig. 5 is the pipeline schematic diagram of the utility model embodiment 1 when being in defrost state;
Fig. 6 be among the utility model embodiment the heat release coil pipe and the heat absorption pipeline that coil pipe adopted longitudinal sectional drawing;
Fig. 7 is the pipeline schematic diagram of the utility model embodiment 2 when being in normal heat production state.
Description of reference numerals: 1-compressor; The 1a-suction port of compressor; The 1b-compressor outlet; The 2-cross valve; 2a-cross valve first interface; 2b-cross valve second interface; 2c-cross valve the 3rd interface; 2d-cross valve the 4th interface; 3-heat exchange water tank; The 4-capillary; The 4a-capillary inlet; The 4b-capillary outlet; The 5-evaporimeter; The 5a-evaporator inlet; The 5b-evaporator outlet; The 6-frequency conversion fan; 7-heat release coil pipe; 7a-heat release coil pipe inlet; The outlet of 7b heat release coil pipe; The 8-coil pipe that absorbs heat; 8a-absorbing heat disk tube inlet; The outlet of 8b-heat absorption coil pipe; The flat section that crouches of 81-; The 82-vertical section; The 9-drier; 10-first muff; The 11-bypass conduit; 12-second muff; The 13-fin; 14-helical form flange; The 101-compressor; The 501-evaporimeter; The 401-throttling arrangement; The 601-blower fan; 701-heat release coil pipe; The 102-compressor; The 202-cross valve; The 502-evaporimeter; 702-heat release coil pipe.
The specific embodiment
Below in conjunction with drawings and Examples the utility model content is described further.
Embodiment 1
As shown in Figure 4, the air source water heater of present embodiment comprises: the working medium in compressor 1, cross valve 2, heat exchange water tank 3, capillary 4, evaporimeter 5, frequency conversion fan 6 and the pipeline that is made of said apparatus (except the frequency conversion fan 6) also is provided with heat release coil pipe 7 and heat absorption coil pipe 8 in heat exchange water tank 3.Wherein, compressor outlet 1b pipeline is connected to the cross valve first interface 2a; The cross valve second interface 2b pipeline is connected to the heat release coil pipe inlet 7a of heat exchange water tank 3; The heat release coil pipe outlet 7b pipeline of heat exchange water tank 3 is connected to capillary inlet 4a; Capillary outlet 4b pipeline is connected to evaporator inlet 5a; In addition, also cross valve the 3rd interface 2c is blocked up with pipe close; Cross valve the 4th interface 2d pipeline is connected on the pipeline between capillary outlet 4b and the evaporator inlet 5a; Evaporator outlet 5b pipeline is connected to suction port of compressor 1a; Heat release coil pipe outlet 7b at heat exchange water tank 3 connects a drier 9 to the pipeline between the 4a of capillary inlet.
Adopt first muff 10 to wrap up to the pipeline between the 4a of capillary inlet and evaporator outlet 5b to the pipeline between the 1a of suction port of compressor heat release coil pipe outlet 7b.Such muff can twine adhesive tape with sponge and on sponge and realize.As shown in Figure 4, on the pipeline of complete machine, the working medium temperature of A point (heat release coil pipe outlet 7b) is about 50 ℃; The working medium temperature of B point (evaporator outlet 5b) is assumed to be-10 ℃ (this temperature is associated with outside air temperature); After then making cold pipe and heat pipe carry out heat exchange, generally still have about 40 ℃ in the working medium temperature of C point (suction port of compressor 1a) by first muff 10.Such working medium temperature can not have any impact to compressor 1.
In the present embodiment, adopt the evaporimeter with bypass conduit 11, such evaporimeter is the existing product of air conditioner on the market.Similarly, adopt second muff 12 to wrap up in bypass conduit 11 and capillary 4.
In the present embodiment, the heat release coil pipe of heat exchange water tank 3 inlet 7a refers to the mouth of pipe that heat release coil pipe 7 is in the higher position, and another mouth of pipe of heat release coil pipe 7 then is heat release coil pipe outlet 7b.The absorbing heat disk tube inlet 8a of heat exchange water tank 3 refers to the mouth of pipe that heat absorption coil pipe 8 is in lower position, and another mouth of pipe of heat absorption coil pipe 8 then is heat absorption coil pipe outlet 8b.For evaporimeter 5, the mouth of pipe that is in lower position is evaporator inlet 5a, and the mouth of pipe that is in the higher position is evaporator outlet 5b.
Among Fig. 4, complete machine is operated in the state of normal heat production, and working medium is after compressor 1 output, and the second interface 2b enters heat exchange water tank 3, drier 9, capillary 4, evaporimeter 5 successively through cross valve, returns compressor 1 at last.Among Fig. 5, complete machine is operated in defrost state, and working medium is directly returned compressor 1 after cross valve the 4th interface 2d enters evaporimeter 5.Two kinds of duties are compared, complete machine when defrost state the path of process and the working medium used all than the minimizing of normal heat production state.So defrost process can be very rapid, more electric energy will be used on the heat production effect that people more are concerned about.In the prior art, the defrost power of the normal air source water heater that family is commonly used is generally 2000W, but the utility model only needs 500W just can reach the effect that communicates, and power savings advantages is quite obvious.
The defrosting program of general air source water heater has two kinds of triggering modes, and a kind of is regularly to be started by circuit main board; Another kind starts when temperature value that temp probe fed back reaches the default defrosting temperature value of circuit main board.For first kind of mode, started the defrosting program under its situation that might not need at the wind net of evaporimeter to defrost; For the second way, it might be very low at temperature, but simultaneously because humidity is also lower, the wind net of evaporimeter has not in fact started the defrosting program under the situation of frosting.Existing air source water heater has all adopted the second way to judge that whether the wind net is by freezing basically, and adopt the mode of predetermined defrosting time to defrost, for example: when the temperature value that senses the wind net when temp probe is 0 ℃, circuit main board will start defrosting program 8 minutes constantly; When the temperature value that temp probe senses the wind net for the second time is 0 ℃, circuit main board will start defrosting program 10 minutes constantly; For the third time, 13 minutes ... the temperature value of each wind net drops to 0 ℃ again, the duration of defrosting program was just long more, and so behind the several times, the duration of defrosting program will prolong one by one from 8 minutes again.Just because of inaccurate to the judgement of wind net state, and it is unreasonable to carry out the process that defrosts, and makes existing air source water heater that a large amount of electric energy is expended on defrost process.The utility model promptly is provided with a temp probe respectively on the both sides of wind net, when the temperature difference of two temp probes reaches a preset value by the judgement that defrosts of a kind of mode accurately, judge that the wind net is stopped up by frost, start the defrosting program this moment, otherwise, the defrosting program do not started; In a single day the defrosting program starts, and circuit main board will compare with temperature approach and another preset value of two temp probes, judges whether to proceed defrosting.Experiment showed, that this mode can judge the blocked state of wind net and the duration of defrosting exactly, thus the waste of energy that can avoid unnecessary defrosting program to bring.
The heat absorption coil pipe 8 of heat exchange water tank 3 is divided into flat for sleeping in section 81 and vertical section 82 in the utility model, and flat section 81 for sleeping in and vertical section 82 are all the cylindrical spring shape, puts down section 81 for sleeping in and vertical section 82 pipelines and communicates.The flat section 81 that crouches is arranged near the heat exchanger effectiveness that can improve greatly like this between heat release coil pipe 7 and the heat absorption coil pipe 8 of the highest position of heat release coil pipe 7 temperature.In addition, as shown in Figure 6, it is material that heat release coil pipe 7 in the heat exchange water tank 3 and heat absorption coil pipe 8 all adopt with copper, and outer wall is provided with fin 13, and inwall is provided with the pipeline of helical form flange 14, with further raising heat exchanger effectiveness.
Because the user is when using the air source water heater of present embodiment, might use water temperature to be no more than 65 ℃ water for a long time, for such situation, can pass through temperature value service time of the control circuit recording user of machine, when machine accumulative total user did not use 65 ℃ water in 168 hours, with starting 70 ℃ heating process automatically one time, to meet the pipeline sterilization requirement of European Union for the type machine.
Embodiment 2
As shown in Figure 7, the difference of present embodiment and embodiment 1 is: it is to be enclosed within evaporator outlet 5b to the pipeline outside between the 1a of suction port of compressor that heat release coil pipe outlet 7b has long part to the pipeline between the 4a of capillary inlet, promptly adopted the frame mode of pipe-in-pipe, first muff 10 has wrapped up the structural sections of this pipe-in-pipe.Similarly, also adopted the frame mode of pipe-in-pipe between bypass conduit 11 and the capillary 4, and correspondingly wrapped up with second muff 12.
Embodiment only is a preferred implementation of the present utility model, and all equivalent technologies of being done under the utility model thinking or principle are replaced, and all belong to protection domain of the present utility model.

Claims (10)

1, energy-saving air source water heater comprises compressor, cross valve, heat-exchange device, throttling arrangement, evaporimeter, blower fan and by the working medium in the pipeline that said apparatus constituted, wherein the compressor outlet pipeline is connected to cross valve first interface; The cross valve second interface pipeline is connected to the working medium inlet of heat-exchange device; The sender property outlet pipeline of heat-exchange device is connected to the throttling arrangement inlet; The throttling arrangement export pipeline is connected to evaporator inlet; It is characterized in that: cross valve the 3rd interface is blocked; Cross valve the 4th interface pipeline is connected on the pipeline between throttling arrangement and the evaporimeter; The evaporator outlet pipeline is connected to the suction port of compressor.
2, energy-saving air source water heater according to claim 1 is characterized in that: the sender property outlet of heat-exchange device adopts the frame mode of pipe-in-pipe to the pipeline between the suction port of compressor to pipeline between the throttling arrangement inlet and evaporator outlet.
3, energy-saving air source water heater according to claim 1 is characterized in that: the sender property outlet at heat-exchange device is connected to a drier to the pipeline between the throttling arrangement inlet.
4, energy-saving air source water heater according to claim 1 and 2, it is characterized in that: evaporimeter has bypass conduit, and bypass conduit and throttling arrangement adopt the frame mode of pipe-in-pipe.
5, energy-saving air source water heater according to claim 1 is characterized in that: heat-exchange device is for having the heat exchange water tank of heat release coil pipe and heat absorption coil pipe simultaneously; Heat absorption coil pipe wherein is divided into flat for sleeping in section and vertical section, and flat section for sleeping in and vertical section are all the cylindrical spring shape, puts down section for sleeping in and vertical section pipeline and communicates.
6, energy-saving air source water heater according to claim 5, it is characterized in that: the heat release coil pipe is provided with fin at the outer wall of pipeline, is provided with the helical form flange at the inwall of pipeline.
7, energy-saving air source water heater according to claim 5 is characterized in that: the heat absorption coil pipe is provided with fin at the outer wall of pipeline, is provided with the helical form flange at the inwall of pipeline.
8, energy-saving air source water heater according to claim 1 is characterized in that: blower fan is a frequency conversion fan.
9, energy-saving air source water heater according to claim 1 is characterized in that: the both sides of the wind net of evaporimeter are respectively equipped with a temp probe.
10, energy-saving air source water heater according to claim 2 is characterized in that: have a muff to be wrapped in the outside of the structural sections of described pipe-in-pipe.
CN200920009060U 2009-03-16 2009-03-16 Energy-saving air source water heater Expired - Fee Related CN201392012Y (en)

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Application Number Priority Date Filing Date Title
CN200920009060U CN201392012Y (en) 2009-03-16 2009-03-16 Energy-saving air source water heater

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Application Number Priority Date Filing Date Title
CN200920009060U CN201392012Y (en) 2009-03-16 2009-03-16 Energy-saving air source water heater

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CN201392012Y true CN201392012Y (en) 2010-01-27

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CN200920009060U Expired - Fee Related CN201392012Y (en) 2009-03-16 2009-03-16 Energy-saving air source water heater

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003839A (en) * 2010-11-29 2011-04-06 石程林 Air source heat pump and heat supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003839A (en) * 2010-11-29 2011-04-06 石程林 Air source heat pump and heat supply system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100127

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