CN210832316U - Constant temperature dehumidifier - Google Patents
Constant temperature dehumidifier Download PDFInfo
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- CN210832316U CN210832316U CN201921685651.3U CN201921685651U CN210832316U CN 210832316 U CN210832316 U CN 210832316U CN 201921685651 U CN201921685651 U CN 201921685651U CN 210832316 U CN210832316 U CN 210832316U
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Abstract
The utility model discloses a constant temperature dehumidifier, which comprises a compressor, the first heat exchanger and the third heat exchanger of heating, refrigerated second heat exchanger, the gas outlet of compressor is connected with first heat exchanger through connecting line, first heat exchanger is connected with second heat exchanger's one end through the pipeline, second heat exchanger's the other end is connected with the air inlet of compressor through the pipeline, be equipped with the electromagnetic directional valve on the connecting pipeline, the directional valve includes inlet channel and first, second outlet channel, the inlet channel of directional valve is connected and is close to compressor gas outlet one side at the connecting line, it is first, third heat exchanger's one end is respectively with first, second outlet channel is connected, third heat exchanger's the other end is connected with second heat exchanger. The utility model discloses under the prerequisite that satisfies the dehumidification requirement, can freely regulate and control indoor temperature as required to satisfy the dehumidification requirement in different seasons.
Description
Technical Field
The utility model relates to an air conditioning equipment, concretely relates to constant temperature dehumidifier.
Background
With the development of economy and the increasing use of the dehumidifier in living standard, the existing air-conditioning dehumidifier has a basic structure comprising a compressor, a heat exchanger (condenser) for heating and a heat exchanger (evaporator) for cooling, wherein a low-temperature low-pressure gaseous refrigerant (freon) is firstly sucked into an air inlet of the outdoor compressor, the refrigerant is compressed and then changed into a high-temperature high-pressure gaseous state and flows out from an air outlet, the high-temperature high-pressure gaseous refrigerant enters the outdoor condenser, a fan of the condenser enables the refrigerant to transfer heat outwards and reduce the temperature to be changed into a low-temperature high-pressure liquid refrigerant, and the liquid refrigerant is evaporated into the low-temperature low-pressure gaseous refrigerant in the evaporator entering the room and absorbs the heat in the air, so that cold air is blown out. Meanwhile, condensed water is formed on the surface of the evaporator after water vapor in the air is cooled, and the condensed water is discharged outdoors through the water receiving disc and the water outlet pipeline, so that the indoor relative air humidity is reduced, and the dehumidification effect is realized.
However, the existing air-conditioning dehumidifier has the following defects that the dehumidification is completed in a 'refrigeration' mode, so that the indoor temperature can be simultaneously reduced while the dehumidification is performed, and when the weather that the environmental temperature is low and refrigeration is not needed in spring and autumn, particularly in winter, the indoor temperature is too low due to the dehumidification, thereby affecting the feeling of users. That is, it is difficult to maintain the indoor temperature stably while dehumidifying.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the indoor temperature can descend simultaneously when dehumidification that current dehumidifier exists, thereby influence the user and experience, provide a constant temperature dehumidifier, under the prerequisite that satisfies the dehumidification requirement, can freely regulate and control indoor temperature as required to satisfy the dehumidification requirement in different seasons.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a constant temperature dehumidifier comprises a compressor, a first heat exchanger positioned outdoors for heating, a second heat exchanger positioned indoors for refrigerating, and a controller for controlling the operation mode of the dehumidifier, wherein an air outlet of the compressor is connected with one end of the first heat exchanger through a connecting pipeline, the other end of the first heat exchanger is connected with one end of the second heat exchanger through a pipeline, the other end of the second heat exchanger is connected with an air inlet of the compressor through a pipeline, the second heat exchanger comprises a water collecting device for collecting and discharging condensed water outwards, and a third heat exchanger positioned indoors for heating, an electromagnetic reversing valve is arranged on the connecting pipeline, the reversing valve comprises an air inlet channel on one side and a first air outlet channel and a second air outlet channel on the other side, the air inlet channel of the reversing valve is connected to one side of the connecting pipeline close to the air outlet of the compressor, and the first air outlet, One end of the third heat exchanger is respectively connected with the first air outlet channel and the second air outlet channel, the other end of the third heat exchanger is connected with the second heat exchanger through a pipeline, the pipelines for connecting the second heat exchanger with the first heat exchanger and the third heat exchanger are respectively provided with a one-way valve, and when a valve core of the reversing valve is positioned at a first position, an air inlet channel of the reversing valve is communicated with the first air outlet channel; when the valve core of the reversing valve is in the second position, the air inlet channel and the second air outlet channel of the reversing valve are communicated.
The utility model discloses set up a third heat exchanger (condenser) that heats at indoor, like this, when ambient temperature is higher, we can make the case of switching-over valve remove to first position through the controller, the intake duct and the first air outlet channel of switching-over valve switch on this moment, the high temperature high pressure gaseous state refrigerant that flows out from the gas outlet of compressor gets into outdoor first heat exchanger (condenser) heat dissipation, thereby become low temperature high pressure liquid refrigerant, then the refrigerant gets into the second heat exchanger (evaporimeter) that is located indoor and evaporates and become low temperature low pressure gaseous state refrigerant, make second heat exchanger cool down rapidly simultaneously, steam in the indoor air can condense and separate out and form the comdenstion water, and attach to second heat exchanger, the comdenstion water is outwards flowed through the pipeline after being collected by water-collecting device, thereby make the relative humidity of indoor air reduce gradually, at the same time, the temperature in the room will also be reduced.
When the environment temperature is low and the indoor temperature does not need to be reduced, the valve core of the reversing valve can be moved to the second position through the controller, the air inlet channel and the second air outlet channel of the reversing valve are communicated at the moment, the high-temperature high-pressure gaseous refrigerant flowing out of the air outlet of the compressor enters a third heat exchanger (condenser) positioned indoors for heat dissipation, the indoor temperature is gradually increased, and the high-temperature high-pressure gaseous refrigerant is changed into a low-temperature high-pressure liquid refrigerant, the refrigerant then enters a second heat exchanger (evaporator) located indoors to evaporate into a low-temperature and low-pressure gaseous refrigerant, simultaneously, the second heat exchanger is rapidly cooled, the water vapor in the air can be condensed and separated out to form condensed water, and is attached to the second heat exchanger, and the condensed water is collected by the water collecting device and then flows out through the pipeline, so that the relative humidity of the indoor air is gradually reduced.
It will be appreciated that in this mode, the compressor has the effect of moving heat through the refrigerant, i.e. on the one hand, the third heat exchanger releases heat and, on the other hand, the second heat exchanger absorbs heat, so that the temperature in the room can be kept constant and a drop in the temperature of the room while dehumidification is avoided.
It should be noted that the controller can maintain the indoor temperature at a level comfortable for human body by switching the position of the valve core of the reversing valve.
Preferably, an adjusting tank is arranged on one side of a gas inlet of the compressor, the gas inlet is communicated with the upper part of the adjusting tank through a pipeline, a gas return channel is arranged on one side of the reversing valve provided with a first gas outlet channel and a second gas outlet channel, one end of the second heat exchanger connected with the gas inlet of the compressor is connected with the gas return channel and is communicated with the lower part of the adjusting tank through a pipeline, and when a valve core of the reversing valve is located at a first position, the second gas outlet channel is communicated with the gas return channel: when the valve core of the reversing valve is in the second position, the first air outlet channel is communicated with the air return channel.
The utility model discloses a reversing valve includes the return-air passageway to be connected with an adjusting tank through the pipeline again after the one end of being connected with the air inlet of compressor in the second heat exchanger is connected with the return-air passageway. Thus, on the one hand, the low-temperature and low-pressure gaseous refrigerant flowing out of the second heat exchanger first enters the regulation tank, and if there is a slight amount of liquid that does not evaporate in the refrigerant flowing out of the second heat exchanger, the liquid is deposited on the bottom of the regulation tank and is not sucked into the compressor through the pipe connected to the upper portion of the regulation tank, and the compressor can be effectively protected. On the other hand, the flow rate of the refrigerant flowing out of the second heat exchanger fluctuates slightly, so that when the amount of the flowing-out refrigerant is large, the refrigerant can be stored in the adjusting tank; when the outflow refrigerant is less or has a trace amount of liquid refrigerant, the liquid refrigerant can be evaporated to form gaseous refrigerant, so that the gaseous refrigerant is supplemented to enter the compressor, and the smooth operation of the compressor is ensured. Particularly, when the first heat exchanger is switched to the third heat exchanger, the air inlet channel of the reversing valve is communicated with the second air outlet channel, the air return channel is communicated with the first channel, and at the moment, residual refrigerant in the first heat exchanger can be sucked into the compressor through the second air outlet channel, the air return channel and the adjusting tank. Similarly, when the third heat exchanger is switched to the first heat exchanger, the residual refrigerant in the third heat exchanger can be sucked into the compressor, so that the residual refrigerant in the first heat exchanger and the residual refrigerant in the third heat exchanger are effectively avoided, and the stability of the amount of the refrigerant in the refrigerant pipeline of the whole system is ensured.
Preferably, the second heat exchanger includes a housing, one side of the housing is an air inlet, the opposite side of the housing is an air outlet, an axial-flow type heat dissipation fan facing the air outlet from the air inlet and evaporation fins located between the heat dissipation fan and the air outlet are disposed in the housing, and the third heat exchanger includes condensation fins disposed between the evaporation fins and the air outlet.
When the heat radiation fan runs, the indoor air can be sucked from the air inlet and blown out to the air outlet. When the valve core of the reversing valve is positioned at the first position, the indoor second heat exchanger and the outdoor first heat exchanger work, the indoor third heat exchanger does not work, and the evaporation fins can absorb the heat of airflow at the moment, so that the water vapor in the air is condensed and separated out to form condensed water which is attached to the evaporation fins; or, when the valve core of the reversing valve is located at the second position, the first heat exchanger out of the room does not work, the second heat exchanger and the third heat exchanger in the room work, at the moment, the evaporation fin firstly absorbs the heat of the air flow, so that the water vapor in the air is condensed and separated out to form condensed water and is attached to the evaporation fin, the air flow with the reduced temperature blows the condensation fin of the third heat exchanger, the heat of the condensation fin can be fully absorbed, the refrigerant in the third heat exchanger forms a low-temperature high-pressure liquid refrigerant, and the heat exchange efficiency of the third heat exchanger is effectively improved on the premise of not increasing the power consumption of the compressor.
It will be appreciated that the dehumidifier functions to maintain the relative humidity of the air in the room within a suitable range. In this scheme, the temperature rises again when the condensation fin through the air current of evaporation fin condensation dehumidification, can further reduce its relative humidity under keeping the air and putting the unchangeable prerequisite of steam content, and then be favorable to promoting the work efficiency of dehumidifier to avoid when ambient temperature is lower, the dehumidifier directly blows off cold wind to indoor, is favorable to promoting user's use and experiences.
Preferably, the first and third heat exchangers are connected in parallel to a parallel line connected to the second heat exchanger through a check valve, the parallel line is provided with a buffer tank, and the parallel lines located upstream and downstream of the buffer tank are respectively communicated with the lower part of the buffer tank.
The utility model discloses be equipped with the buffer tank on first, third heat exchanger's parallel pipeline, like this, the refrigerant that flows from first or third heat exchanger gets into the buffer tank earlier and stores in, flows out again from the buffer tank in getting into the second heat exchanger. When the refrigerant flowing out of the first or third heat exchanger has a part of the non-liquefied gas refrigerant, a small amount of the gas refrigerant may accumulate in the upper part of the buffer tank, and a large amount of the liquid refrigerant accumulates in the lower part of the buffer tank. Because the parallel pipelines on the upper and lower sides of the buffer tank are respectively communicated with the lower part of the buffer tank, the refrigerant entering the second heat exchanger can be ensured to be a low-temperature high-pressure liquid refrigerant, so that the evaporation heat absorption effect of the refrigerant in the second heat exchanger can be improved, and the matching and the stability of the refrigerant flow among the heat exchangers in the whole pipeline can be maintained.
Preferably, parallel lines located upstream and downstream of the surge tank are connected to the top wall of the surge tank, respectively, and extend downward to the bottom of the surge tank.
Since the parallel pipeline extends downwards from the top wall of the buffer tank to the bottom of the buffer tank, namely, the parallel pipeline opening in the buffer tank is immersed in the liquid refrigerant in the buffer tank, the gaseous refrigerant at the upper part of the buffer tank can be effectively isolated from the parallel pipeline opening. When the liquid refrigerant in the buffer tank is increased, the space of the upper gaseous refrigerant is extruded to be reduced, the pressure of the gaseous refrigerant is increased, and at the moment, part of the gaseous refrigerant is converted into the liquid refrigerant; when the liquid refrigerant in the buffer tank is reduced, the space of the upper gaseous refrigerant is increased, the pressure of the gaseous refrigerant is reduced, and at the moment, part of the liquid refrigerant is gasified and converted into the gaseous refrigerant, so that the pressure stability of the gaseous refrigerant in the buffer tank is ensured, and the constant output of the liquid refrigerant is facilitated.
Therefore, the utility model discloses following beneficial effect has: on the premise of meeting the dehumidification requirement, the indoor temperature can be freely regulated and controlled according to the requirement, so that the dehumidification requirements in different seasons are met.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a second heat exchanger.
In the figure: 1. the air conditioner comprises a compressor 11, an air inlet 12, an air outlet 2, a first heat exchanger 3, a second heat exchanger 31, a shell 311, an air inlet 312, an air outlet 32, a cooling fan 33, an evaporation fin 4, a third heat exchanger 41, a condensation fin 5, a connecting pipeline 51, a parallel pipeline 6, a reversing valve 61, an air inlet channel 62, a first air outlet channel 63, a second air outlet channel 64, an air return channel 7, a one-way valve 8, an adjusting tank 9 and a buffer tank.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in figure 1, the constant temperature dehumidifier comprises a case arranged outdoors, a compressor 1, a first heat exchanger 2 used for heating, a second heat exchanger 3 used for refrigerating and a third heat exchanger 4 used for heating, which are arranged in the case, and a controller used for controlling the operation mode of the dehumidifier, wherein an air outlet 12 of the compressor is connected with one end of the first heat exchanger through a connecting pipeline 5, the other end of the first heat exchanger is connected with one end of the second heat exchanger through a pipeline, and the other end of the second heat exchanger is connected with an air inlet 11 of the compressor through a pipeline. An electromagnetic directional valve 6 is arranged on the connecting pipeline, the directional valve comprises an air inlet channel 61, a first air outlet channel 62 and a second air outlet channel 63, the air inlet channel of the directional valve is connected to one side, close to the air outlet of the compressor, of the connecting pipeline, one end of the first heat exchanger is connected with the first air outlet channel, one end of the third heat exchanger is connected with the second air outlet channel, and the other end of the third heat exchanger is connected with the second heat exchanger through a pipeline, so that the first heat exchanger and the third heat exchanger are connected in parallel.
That is, the first heat exchanger and the third heat exchanger are condensers, and the second heat exchanger is an evaporator.
When the valve core of the reversing valve is in a first position, the air inlet channel of the reversing valve is communicated with the first air outlet channel; when the valve core of the reversing valve is in the second position, the air inlet channel and the second air outlet channel of the reversing valve are communicated.
Therefore, when the environment temperature is higher like summer, the valve core of the reversing valve can be moved to the first position through the controller, the air inlet channel of the reversing valve is communicated with the first air outlet channel, high-temperature and high-pressure gaseous refrigerant flowing out of the air outlet of the compressor enters the outdoor first heat exchanger (condenser) for heat dissipation, so that the high-temperature and high-pressure gaseous refrigerant is changed into low-temperature and high-pressure liquid refrigerant, then the refrigerant enters the indoor second heat exchanger (evaporator) for absorbing heat and then is evaporated into low-temperature and low-pressure gaseous refrigerant, meanwhile, the second heat exchanger is rapidly cooled, water vapor in indoor air can be condensed and separated out to form condensate water and is attached to the second heat exchanger, so that the relative humidity of the indoor air is gradually reduced, and meanwhile, the indoor temperature can be reduced.
Of course, the second heat exchanger should include a water collecting means for collecting and outwardly discharging the condensed water, so that the condensed water attached to the second heat exchanger is collected and outwardly discharged through the pipe.
When the environment temperature is lower like winter, the valve core of the reversing valve can be moved to the second position by the controller, the air inlet channel and the second air outlet channel of the reversing valve are communicated, the high-temperature high-pressure gaseous refrigerant flowing out of the air outlet of the compressor enters the third heat exchanger (condenser) positioned in the room for heat dissipation, the temperature in the room is gradually increased, and the high-temperature high-pressure gaseous refrigerant is changed into low-temperature high-pressure liquid refrigerant, the refrigerant then enters a second heat exchanger (evaporator) located indoors to evaporate into a low-temperature and low-pressure gaseous refrigerant, simultaneously, the second heat exchanger is rapidly cooled, the water vapor in the air can be condensed and separated out to form condensed water, and is attached to the second heat exchanger, and the condensed water is collected by the water collecting device and then flows out through the pipeline, so that the relative humidity of the indoor air is gradually reduced.
It should be noted that the controller can accurately judge the appropriate position of the valve core of the reversing valve through the indoor temperature detected by the temperature sensor, and in the running process of the dehumidifier, the operating mode of the dehumidifier can be adjusted by switching the position of the valve core of the reversing valve, so as to adjust the indoor temperature, and the indoor temperature is maintained at a comfortable degree for human body.
Preferably, a one-way valve 7 which is communicated in one way from the first heat exchanger to the second heat exchanger can be arranged on a pipeline connecting the second heat exchanger and the first heat exchanger, and a one-way valve which is communicated in one way from the third heat exchanger to the second heat exchanger is arranged on a pipeline connecting the second heat exchanger and the third heat exchanger, so that the liquid refrigerant flowing out of the first heat exchanger is prevented from reversely flowing into the third heat exchanger when a valve core of the reversing valve is positioned at the first position; or to prevent liquid refrigerant flowing from the third heat exchanger from flowing back into the first heat exchanger when the reversing valve spool is in the second position.
Preferably, a sealed adjusting tank 8 is arranged on a pipeline connected with the air inlet side of the compressor, and the pipeline connected with the air inlet is connected with the top wall of the adjusting tank, extends inwards vertically and then bends in an arc shape to extend upwards to be close to the top wall. The reversing valve further comprises a return air channel 64, and when the valve core of the reversing valve is in the first position, the second air outlet channel is communicated with the return air channel, and of course, the air inlet channel of the reversing valve is communicated with the first air outlet channel: when the valve core of the reversing valve is in the second position, the first air outlet channel is communicated with the air return channel, and the air inlet channel of the reversing valve is communicated with the second air outlet channel.
Furthermore, a pipe connected to the return air passage is connected to the top wall of the conditioning tank and extends vertically inward to the lower portion of the conditioning tank, so that the upward opening of the pipe connected to the compressor inlet in the conditioning tank is higher than the downward opening of the pipe connected to the return air passage in the conditioning tank. In addition, one end of the second heat exchanger, which is connected with the air inlet of the compressor, is connected with a pipeline of the air return channel connection adjusting tank. That is, one end of the second heat exchanger connected with the air inlet of the compressor is connected with the air return channel in parallel and then is communicated with the adjusting tank through a pipeline.
In this way, the low-temperature and low-pressure gaseous refrigerant flowing out of the second heat exchanger first enters the conditioning tank, and if there is a small amount of liquid refrigerant that does not evaporate in the refrigerant flowing out of the second heat exchanger, the liquid refrigerant is deposited on the bottom of the conditioning tank, that is, there is a small amount of liquid refrigerant in the bottom of the conditioning tank, and the upper space in the conditioning tank is gaseous refrigerant. Because the opening of the pipeline connected with the air inlet of the compressor in the adjusting tank is close to the top wall of the adjusting tank, a small amount of liquid refrigerant at the bottom of the adjusting tank cannot be sucked into the pipeline from the opening close to the top wall of the adjusting tank and then is sucked into the compressor through the pipeline.
It is known that liquid refrigerant is extremely difficult to compress, and therefore the conditioning tank effectively prevents liquid refrigerant from entering the compressor, thereby effectively protecting the compressor.
On the other hand, it is understood that the flow rate of the refrigerant flowing out of the second heat exchanger fluctuates slightly, so that when the amount of the refrigerant flowing out is large, it can be stored in the regulation tank; when the outflow refrigerant is less or has a trace amount of liquid refrigerant, the liquid refrigerant at the bottom of the regulating tank can be evaporated to form gaseous refrigerant, so that the gaseous refrigerant is supplemented to enter the compressor, and the stable operation of the compressor is ensured.
Particularly, when the first heat exchanger is switched to the third heat exchanger, the air inlet channel of the reversing valve is communicated with the second air outlet channel, the air return channel is communicated with the first channel, and at the moment, residual refrigerant in the first heat exchanger can be sucked into the compressor through the second air outlet channel, the air return channel and the adjusting tank. Similarly, when the third heat exchanger is switched to the first heat exchanger, the residual refrigerant in the third heat exchanger can be sucked into the compressor, so that the residual refrigerant in the first heat exchanger and the residual refrigerant in the third heat exchanger are effectively avoided, and the stability of the amount of the refrigerant in the refrigerant pipeline of the whole system is ensured.
As another preferred scheme, as shown in fig. 2, the second heat exchanger includes a housing 31, an air inlet 311 is provided at the rear side of the housing, an air outlet 312 is provided at the front side of the housing, an axial flow type heat dissipation fan 32 blowing from the air inlet to the air outlet, an evaporation fin 33 between the heat dissipation fan and the air outlet are provided in the housing, and the third heat exchanger includes a condensation fin 41 provided between the evaporation fin and the air outlet.
When the heat radiation fan runs, the indoor air can be sucked from the air inlet and blown out to the air outlet. When the valve core of the reversing valve is positioned at the first position, the indoor second heat exchanger and the outdoor first heat exchanger work, the indoor third heat exchanger does not work, and the evaporation fins can absorb the heat of airflow at the moment, so that the water vapor in the air is condensed and separated out to form condensed water which is attached to the evaporation fins; or, when the valve core of the reversing valve is located at the second position, the first heat exchanger out of the room does not work, the second heat exchanger and the third heat exchanger in the room work, at the moment, the evaporation fin firstly absorbs the heat of the air flow, so that the water vapor in the air is condensed and separated out to form condensed water and is attached to the evaporation fin, the air flow with the reduced temperature blows the condensation fin of the third heat exchanger, the heat of the condensation fin can be fully absorbed, the refrigerant in the third heat exchanger forms a low-temperature high-pressure liquid refrigerant, and the heat exchange efficiency of the third heat exchanger is effectively improved on the premise of not increasing the power consumption of the compressor.
It will be appreciated that the dehumidifier functions to maintain the relative humidity of the air in the room within a suitable range. When the temperature of the air flow condensed and dehumidified by the evaporation fins rises again when passing through the condensation fins, the relative humidity of the air flow can be further reduced on the premise that the water vapor content in the air is kept unchanged, the initial effect of the dehumidifier is further improved, the situation that the dehumidifier directly blows cold air indoors when the ambient temperature is low can be avoided, and the use experience of a user is improved.
Further, the first and third heat exchangers are connected in parallel to the parallel pipe 51 connected to the second heat exchanger through check valves, so as to facilitate connection of the first and third heat exchangers to the second heat exchanger. And a sealed buffer tank 9 is arranged on the parallel pipeline, and the parallel pipelines positioned at the upstream and the downstream of the buffer tank are respectively communicated with the lower part of the buffer tank.
The liquid refrigerant flowing out of the first or third heat exchanger enters the buffer tank first and is stored in the lower part of the buffer tank, and then flows out of the buffer tank and enters the second heat exchanger. When a part of the refrigerant flowing out of the first or third heat exchanger is liquefied as a gas refrigerant, a small amount of the gas refrigerant may accumulate in the upper part of the buffer tank, and a large amount of the liquid refrigerant accumulates in the lower part of the buffer tank. Because the parallel pipelines on the upper and lower sides of the buffer tank are respectively communicated with the lower part of the buffer tank, the refrigerant entering the second heat exchanger can be ensured to be a low-temperature high-pressure liquid refrigerant, so that the evaporation heat absorption effect of the refrigerant in the second heat exchanger can be improved, and the matching and the stability of the refrigerant flow among the heat exchangers in the whole pipeline can be maintained.
Preferably, the parallel pipes located at the upstream and downstream of the buffer tank are respectively connected to the top wall of the buffer tank and vertically extend downwards to the bottom of the buffer tank, so that the parallel pipe opening located in the buffer tank is immersed in the liquid refrigerant in the buffer tank, thereby ensuring effective isolation of the gaseous refrigerant at the upper part of the buffer tank from the parallel pipe opening. When the liquid refrigerant in the buffer tank is increased, the space of the upper gaseous refrigerant is extruded to be reduced, the pressure of the gaseous refrigerant is increased, and at the moment, part of the gaseous refrigerant is converted into the liquid refrigerant; when the liquid refrigerant in the buffer tank is reduced, the space of the upper gaseous refrigerant is increased, the pressure of the gaseous refrigerant is reduced, and at the moment, part of the liquid refrigerant is gasified and converted into the gaseous refrigerant, so that the pressure stability of the gaseous refrigerant in the buffer tank is ensured, and the constant output of the liquid refrigerant is facilitated.
Claims (5)
1. A constant temperature dehumidifier comprises a compressor, a first heat exchanger for heating located outdoors, a second heat exchanger for cooling located indoors, and a controller for controlling the operation mode of the dehumidifier, wherein an air outlet of the compressor is connected with one end of the first heat exchanger through a connecting pipeline, the other end of the first heat exchanger is connected with one end of the second heat exchanger through a pipeline, the other end of the second heat exchanger is connected with an air inlet of the compressor through a pipeline, the second heat exchanger comprises a water collecting device for collecting and discharging condensed water outwards, and the constant temperature dehumidifier is characterized by also comprising a third heat exchanger for heating located indoors, an electromagnetic reversing valve is arranged on the connecting pipeline, the reversing valve comprises an air inlet channel on one side and a first air outlet channel and a second air outlet channel on the other side, the air inlet channel of the reversing valve is connected to one side of the connecting pipeline, which is, one end of the first heat exchanger and one end of the third heat exchanger are respectively connected with the first air outlet channel and the second air outlet channel, the other end of the third heat exchanger is connected with the second heat exchanger through a pipeline, one-way valves are respectively arranged on the pipelines connecting the second heat exchanger with the first heat exchanger and the third heat exchanger, and when a valve core of the reversing valve is positioned at a first position, an air inlet channel of the reversing valve is communicated with the first air outlet channel; when the valve core of the reversing valve is in the second position, the air inlet channel and the second air outlet channel of the reversing valve are communicated.
2. The constant temperature dehumidifier of claim 1, wherein a regulating tank is provided at a side of an air inlet of the compressor, the air inlet is communicated with an upper portion of the regulating tank through a pipeline, the reversing valve is provided with a return air passage at a side provided with the first and second air outlet passages, one end of the second heat exchanger connected with the air inlet of the compressor is connected with the return air passage and communicated with a lower portion of the regulating tank through a pipeline, and when a spool of the reversing valve is at a first position, the second air outlet passage is communicated with the return air passage: when the valve core of the reversing valve is in the second position, the first air outlet channel is communicated with the air return channel.
3. The constant-temperature dehumidifier of claim 1, wherein the second heat exchanger comprises a housing, one side of the housing is an air inlet, the other opposite side of the housing is an air outlet, an axial flow type heat dissipation fan facing the air outlet from the air inlet and an evaporation fin located between the heat dissipation fan and the air outlet are arranged in the housing, and the third heat exchanger comprises a condensation fin arranged between the evaporation fin and the air outlet.
4. The constant temperature dehumidifier of claim 1, wherein the first and third heat exchangers are connected in parallel to a parallel pipe connected to the second heat exchanger after passing through the check valve, a buffer tank is provided on the parallel pipe, and the parallel pipes located at the upstream and downstream of the buffer tank are respectively communicated with the lower part of the buffer tank.
5. The constant temperature dehumidifier of claim 1, wherein the parallel pipes located at the upstream and downstream of the buffer tank are connected to the top wall of the buffer tank and extend downward to the bottom of the buffer tank, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921685651.3U CN210832316U (en) | 2019-10-09 | 2019-10-09 | Constant temperature dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921685651.3U CN210832316U (en) | 2019-10-09 | 2019-10-09 | Constant temperature dehumidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210832316U true CN210832316U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921685651.3U Active CN210832316U (en) | 2019-10-09 | 2019-10-09 | Constant temperature dehumidifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210832316U (en) |
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2019
- 2019-10-09 CN CN201921685651.3U patent/CN210832316U/en active Active
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Address after: Building 1-8, No. 22 Hengyi Street, Tangqi Town, Linping District, Hangzhou City, Zhejiang Province, 311103 Patentee after: Zhejiang Oulun Electric Co.,Ltd. Address before: 311100 No.17 tangmei Road, Yuhang Economic Development Zone, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG OULUN ELECTRIC Co.,Ltd. |