CN212566773U - Segmented heat pump drying device and heat pump drying system - Google Patents
Segmented heat pump drying device and heat pump drying system Download PDFInfo
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- CN212566773U CN212566773U CN202020794411.3U CN202020794411U CN212566773U CN 212566773 U CN212566773 U CN 212566773U CN 202020794411 U CN202020794411 U CN 202020794411U CN 212566773 U CN212566773 U CN 212566773U
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Abstract
The utility model discloses a heat pump drying device of segmentable to a heat pump drying system with heat pump drying device is disclosed, wherein the heat pump drying device of segmentable includes: the two ends of the first air flow channel are respectively provided with a first air return opening and a first air outlet, and an evaporator and a first condenser are arranged in the first air flow channel; a first blower; a second air flow channel, two ends of which are respectively provided with a second air return inlet and a second air outlet, and a second condenser is arranged in the second air flow channel; a second blower; a first compressor; the first compressor, the first condenser, the second condenser and the evaporator are connected through pipelines to form a first refrigerant loop. In the first air flow channel, return air is subjected to temperature reduction and dehumidification by a first evaporator and temperature rise by a first condenser in sequence to obtain high-temperature dry air; in the second airflow channel, the returned air is heated by the second condenser to obtain high-temperature air, so that air with different temperature and humidity can be provided, and the requirements of different materials on different temperature and humidity of the dry air are met.
Description
Technical Field
The utility model relates to a heat pump technical field, in particular to heat pump drying device and heat pump drying system of segmentable.
Background
In many industrial applications there is a need to dry materials using high temperature dry air, which is typically exported using a heat pump drying unit refrigeration system. When the drying machine works, the fan drives air to flow through the evaporator and the condenser, the air is cooled when passing through the evaporator, the temperature is reduced to be below a dew point, moisture in the air is separated out, and therefore the relative humidity of the air is reduced, then the air flows through the condenser to be heated and heated, the air becomes high-temperature drying air, and the high-temperature drying air is sent to a specific area to be used for drying materials.
Because different materials have different requirements on the temperature and humidity parameters of the drying air, if the existing heat pump drying device refrigerating system is adopted, the air with different temperatures and humidities is difficult to output in the continuous operation process, and the return air of an external system is not effectively utilized.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a heat pump drying device of segmentable.
The utility model discloses still provide a heat pump drying system who has above-mentioned heat pump drying device of segmentable.
According to the utility model discloses a heat pump drying device of segmentable of first aspect embodiment includes:
the two ends of the first air flow channel are respectively provided with a first air return opening and a first air outlet, and an evaporator and a first condenser are sequentially arranged in the first air flow channel from the first air return opening to the air outlet;
the first blower is used for driving airflow to enter the first airflow channel from the first air return opening and send the airflow out from the first air outlet;
the second airflow channel is arranged beside the first airflow channel, a second air return opening and a second air outlet are respectively arranged at two ends of the second airflow channel, a second blower with the blowing direction facing the second air outlet is arranged in the second airflow channel, and a second condenser is arranged in the second airflow channel;
the second air blower is used for driving the air flow to enter the second air flow channel from the second air return opening and send out from the second air outlet;
a first compressor;
the first compressor, the first condenser, the second condenser and the evaporator are connected through pipelines to form a first refrigerant loop, a refrigerant inlet of the first condenser and a refrigerant inlet of the second condenser are connected with pipelines for a refrigerant outlet of the first compressor, a refrigerant outlet of the first condenser and a refrigerant outlet of the second condenser are connected with pipelines for a refrigerant inlet of the evaporator, and a refrigerant outlet of the evaporator is connected with pipelines for a refrigerant inlet of the first compressor.
According to the utility model discloses but heat pump drying device of segmentation has following beneficial effect at least: in the first air flow channel, return air of an external system is sequentially cooled and dehumidified by a first evaporator and heated by a first condenser to obtain high-temperature dry air; in the second airflow channel, the return air is heated by a second condenser to obtain high-temperature air; because the air flowing out of the first air flow channel and the second air flow channel has different humiture, the air flowing out of the first air flow channel can be sent to the corresponding drying area from the first air outlet, and the air flowing out of the second air flow channel is sent to the other drying area from the second air outlet, so that the air with different humiture can be provided for the drying areas with different requirements, and the requirements of different materials on different humiture of the drying air can be met.
According to some embodiments of the utility model, still be equipped with the subcooler in the first airflow channel, the subcooler is located the air-out side of evaporimeter, still include in the first refrigerant return circuit the subcooler, the subcooler concatenates in first condenser with the second condenser with between the evaporimeter, the refrigerant export of first condenser with the refrigerant export of second condenser all with pipe connection is used in the refrigerant import of subcooler, the refrigerant export of subcooler with pipe connection is used in the refrigerant entry of evaporimeter.
A subcooler is added in the first refrigerant loop, and after the refrigerant on the first refrigerant loop flows out of the condenser, the refrigerant firstly passes through the subcooler and then enters the evaporator to evaporate and absorb heat; in the air flowing direction, the subcooler is arranged at the air outlet side of the evaporator, the air cooled by the evaporator blows through the subcooler, the refrigerant in the subcooler and the cooled air are subjected to heat exchange for cooling to form a larger supercooling degree, the cooled refrigerant enters the evaporator and then can absorb more heat, the cooling amplitude and the cooling speed are improved, more moisture is separated out, the dehumidification effect is improved, and the energy consumption is reduced; in addition, the air passing through the subcooler also absorbs the heat of the refrigerant to raise the temperature in advance, which is also beneficial to improving the energy utilization efficiency.
According to some embodiments of the invention, a throttling element is provided on the pipe connecting the subcooler and the evaporator. The throttling element is used for controlling the flow of the refrigerant entering the evaporator and improving the evaporation heat absorption effect of the refrigerant in the evaporator.
According to some embodiments of the utility model, the refrigerant export of first condenser with the refrigerant export of second condenser wait to set up. The refrigerant outlet of the first condenser and the refrigerant outlet of the second condenser are arranged at the same height and communicated through a pipeline, so that the refrigerants in the first condenser and the second condenser keep the same liquid level height, the first condenser and the second condenser keep higher heat dissipation efficiency, and adverse effects on the circulation process of the refrigerating system caused by overhigh liquid level in one of the condensers are also avoided.
According to some embodiments of the utility model, still include the liquid seal structure in the first refrigerant return circuit, the liquid seal structure concatenate in first condenser with the second condenser with between the evaporimeter. The liquid seal structure can prevent gaseous refrigerant in the evaporator from flowing back to the condenser, and improve the operation stability in the condensation process.
According to some embodiments of the present invention, the first air channel comprises a dehumidifying channel and a heating channel which are communicated with each other, the first air return port is disposed at the head end of the dehumidifying channel, the first air outlet is disposed at the tail end of the heating channel, the evaporator and the subcooler are disposed in the dehumidifying channel, and the first condenser is disposed in the heating channel; dehumidification passageway with be equipped with the air regenerator between the heating channel, the air regenerator is equipped with first heat transfer passageway and the second heat transfer passageway that can carry out mutual heat transfer, first heat transfer passageway is equipped with first air inlet and first gas outlet, second heat transfer passageway is equipped with second air inlet and second gas outlet, first air inlet does first return air mouth, the head end of dehumidification passageway with first gas outlet is connected, the end of dehumidification passageway with the second air inlet is connected, the head end of heating channel with the second gas outlet is connected.
The first heat exchange channel and the second heat exchange channel in the air heat regenerator can exchange heat with each other, air with higher temperature passes through the first heat exchange channel and then flows through the evaporator, air with lower temperature and cooled by the evaporator passes through the second heat exchange channel and then reaches the first condenser, the air with higher temperature and the air with lower temperature exchange heat in the air heat regenerator, so that the air flowing through the evaporator is cooled firstly, the air passing through the first condenser is heated firstly, and the utilization rate of heat is improved. In addition, the air cooled by the evaporator firstly passes through the subcooler and then reaches the air heat regenerator, the temperature of the air at the air outlet side of the evaporator is the lowest, the refrigerant in the subcooler can obtain better subcooling degree, and better dehumidification and energy consumption reduction effects are obtained.
According to some embodiments of the utility model, be equipped with first governing valve on the second return air inlet. The first adjusting valve is arranged at the second air return inlet, so that the inlet flow of return air can be adjusted, the return air quantity is controlled, the temperature and humidity parameters of outlet air are adjusted, and the running performance of the dehumidifier is further improved.
According to some embodiments of the utility model, the utility model discloses still include third airflow channel, third airflow channel locates second airflow channel's side, third airflow channel's both ends are equipped with third return air inlet and third air outlet respectively, the side of third return air inlet is equipped with the new trend and goes into the wind gap, be equipped with the direction orientation of blowing in the third airflow channel the third hair-dryer of third air outlet, be equipped with the third condenser in the third airflow channel, the refrigerant entry of third condenser with the pipe connection for the refrigerant export of first compressor, the refrigerant export of third condenser with the pipe connection for the refrigerant entry of evaporimeter.
The third airflow channel is provided with a fresh air inlet, fresh air of an external environment is introduced, the temperature and humidity of return air flowing through the third airflow channel can be adjusted by introducing fresh air according to temperature and humidity parameters of the fresh air, air with temperature and humidity different from those of the first airflow channel and the second airflow channel is obtained, the air is conveyed to a corresponding drying area through the third air outlet, and the types of materials which can be dried are increased.
According to some embodiments of the utility model, be equipped with the second governing valve on the third return air inlet. And a second regulating valve is arranged at the third air return inlet to regulate the inlet flow of return air, control the return air quantity, regulate the temperature and humidity parameters of outlet air and further improve the running performance of the dehumidifier.
According to some embodiments of the utility model, be equipped with the third governing valve on the new trend income wind gap. The third regulating valve is arranged at the fresh air inlet to regulate the inlet flow of fresh air, so that the temperature and the humidity of air in the third airflow channel can be conveniently regulated, and the running performance of the dehumidifier is further improved.
According to the utility model discloses a heat pump drying system of second aspect embodiment, include according to the utility model discloses the heat pump drying device of segmentable of above-mentioned first aspect embodiment still includes the drying chamber, first return air inlet the second return air inlet first air outlet with the second air outlet all with the indoor intercommunication of drying chamber.
According to the utility model discloses heat pump drying system has following beneficial effect at least: different drying areas are arranged in the drying chamber, air in the drying chamber enters the heat pump drying device through the first air return port and the second air return port to be dehumidified and heated, air with different temperature and humidity flows out of the first air outlet and the second air outlet and is respectively conveyed to the different drying areas in the drying chamber, and drying requirements of different materials are met.
According to some embodiments of the present invention, the present invention further comprises a first indoor heat exchanger, a first outdoor heat exchanger and a first four-way valve, wherein the first indoor heat exchanger is disposed in the drying chamber, the first outdoor heat exchanger is disposed outside the drying chamber, the first indoor heat exchanger and the first outdoor heat exchanger are connected by a pipe to form a first refrigerant branch, two ends of the first refrigerant branch are respectively provided with a first port and a second port, a first refrigerant inflow branch pipe is connected to a refrigerant inlet of the first compressor, a first refrigerant outflow branch pipe is connected to a refrigerant outlet of the first compressor, the first four-way valve is provided with four valve ports, and the first port, the second port, a port of the first refrigerant inflow branch pipe and a port of the first refrigerant outflow branch pipe are respectively connected to the four valve ports of the first four-way valve in one-to-one correspondence, the first four-way valve is used for switching the flowing direction of the refrigerant in the first refrigerant branch.
The first indoor heat exchanger and the first outdoor heat exchanger can respectively have functions of a condenser or an evaporator, the flowing direction of the refrigerant in the first refrigerant branch can be changed through state switching of the first four-way valve, indoor heat of the drying chamber can be transferred to the outdoor, indoor temperature is reduced, or outdoor heat is transferred to the indoor, indoor temperature is improved, and effective adjustment of indoor temperature is achieved. The first compressor is connected with the two heat exchange loops, so that the utilization rate of the first compressor can be improved.
According to some embodiments of the present invention, the present invention further comprises a second indoor heat exchanger, a second outdoor heat exchanger, a second four-way valve and a second compressor, wherein the second indoor heat exchanger is disposed in the drying chamber, the second outdoor heat exchanger is disposed outside the drying chamber, the second indoor heat exchanger and the second outdoor heat exchanger are connected by a pipe to form a second refrigerant branch, a third port and a fourth port are respectively disposed at two ends of the second refrigerant branch, a second refrigerant inflow pipe is connected to a refrigerant inlet of the second compressor, a second refrigerant outflow pipe is connected to a refrigerant outlet of the second compressor, the second four-way valve is provided with four valve ports, and the third port, the fourth port, a port of the second refrigerant inflow pipe and a port of the second refrigerant outflow pipe are respectively connected to the four valve ports of the second four-way valve in one-to-one correspondence, and the second four-way valve is used for switching the flow direction of the refrigerant in the second refrigerant branch.
The second indoor heat exchanger and the second outdoor heat exchanger can respectively have the functions of a condenser or an evaporator, the flowing direction of the refrigerant in the second refrigerant branch can be changed through the state switching of the second four-way valve, the indoor heat of the drying chamber can be transferred to the outdoor, the indoor temperature is reduced, or the outdoor heat is transferred to the indoor, the indoor temperature is improved, and the indoor temperature is effectively adjusted. The second compressor is independently arranged, so that an independent heat exchange loop can be formed without depending on the operation of the first compressor, and the stability of indoor temperature regulation of the drying chamber is improved.
The utility model is used for the heat pump.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a heat pump drying device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a heat pump drying device and a schematic diagram of a heat exchange system according to an embodiment of the present invention;
fig. 3 is a schematic view of a heat exchange system in a heat pump drying system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another embodiment of a heat exchange system in a heat pump drying system according to an embodiment of the present invention.
In the drawings: 100-a first air flow channel, 101-a dehumidification channel, 102-a heating channel, 103-a first air return port, 104-a first air outlet, 105-a first blower, 106-an evaporator, 107-a first condenser, 108-a subcooler, 109-a throttling element, 200-a second air flow channel, 201-a second air return port, 202-a second air outlet, 203-a second blower, 204-a second condenser, 301-a first compressor, 302-a liquid seal structure, 303-an air heat regenerator, 304-a first refrigerant loop, 400-a third air flow channel, 401-a third air return port, 402-a third air outlet, a new air inlet, 404-a third blower, 405-a third condenser, 501-a first indoor heat exchanger 403, 502-a first outdoor heat exchanger, 503-a first four-way valve, 504-a first refrigerant inflow branch pipe, 505-a first refrigerant outflow branch pipe, 506-a first refrigerant branch pipe, 601-a second indoor heat exchanger, 602-a second outdoor heat exchanger, 603-a second four-way valve, 604-a second compressor, 605-a second refrigerant inflow pipe, 606-a second refrigerant outflow pipe and 607-a second refrigerant branch pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly defined, words such as set forth, connected, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the words in the present invention by combining the specific contents of the technical solutions.
A sectionalized heat pump drying apparatus according to an embodiment of a first aspect of the present invention is described below with reference to fig. 1 and 2.
The segmented heat pump drying apparatus includes a first airflow path 100, a second airflow path 200, a first blower 105, and a second blower 203.
The two ends of the first air flow channel 100 are respectively provided with a first air return opening 103 and a first air outlet 104, an evaporator 106 and a first condenser 107 are sequentially arranged in the first air flow channel 100 from the first air return opening 103 to the air outlet, and the air is cooled and dehumidified by the evaporator 106 and then heated by the first condenser 107 to obtain high-temperature dry air.
The first blower 105 is used to drive the airflow from the first air return opening 103 into the first airflow channel 100 and out of the first air outlet 104. The first blower 105 may be placed inside or outside the first airflow channel 100; when the first blower 105 is disposed inside the first air flow channel 100, it can be placed in the first air flow channel 100 alone, or integrated with the first condenser or evaporator 106; when the first blower 105 is disposed outside the first air flow channel 100, the first blower 105 may be connected and communicated with the first air flow channel 100 through the adapter tube, or a certain gap may be disposed between the first blower 105 and the first air return opening 103 or the first air outlet 104, as long as the effect of sending the air flow from the first air return opening 103 into the first air flow channel 100 and out from the first air outlet 104 can be achieved.
The second airflow channel 200 is disposed beside the first airflow channel 100, two ends of the second airflow channel 200 are respectively provided with a second air return opening 201 and a second air outlet 202, a second condenser 204 is disposed in the second airflow channel 200, and air entering from the second air return opening 201 is directly heated by the second condenser 204.
The second blower 203 is used to drive the airflow from the second air return opening 201 into the second airflow channel 200 and out of the second air outlet 202. The arrangement of the second blower 203 and the second airflow path 200 may be arranged with reference to the arrangement of the first blower 105 and the first airflow path 100.
The heat pump drying device further includes a first compressor 301, which may be disposed inside or outside the first airflow channel 100 or the second airflow channel 200. The first compressor 301, the first condenser 107, the second condenser 204 and the evaporator 106 are connected by pipelines to form a first refrigerant loop 304, a refrigerant inlet of the first condenser 107 and a refrigerant inlet of the second condenser 204 are both connected with a refrigerant outlet of the first compressor 301 by pipelines, and a refrigerant flowing out of the first compressor 301 is divided into the first condenser 107 and the second condenser 204; the refrigerant outlet of the first condenser 107 and the refrigerant outlet of the second condenser 204 are both connected with the refrigerant inlet of the evaporator 106 by pipelines, and the refrigerants flowing out of the first condenser 107 and the second condenser 204 flow into the evaporator 106 in a confluence manner; the refrigerant outlet of the evaporator 106 is connected to the refrigerant inlet of the first compressor 301 by a pipe, and a refrigerant circulation circuit is formed.
In the first air flow channel 100, return air of an external system sequentially passes through a first evaporator 106 for cooling and dehumidifying and a first condenser 107 for heating to obtain high-temperature dry air; in the second airflow channel 200, the return air of the external system is heated by the second condenser 204 to obtain high-temperature air; because the air flowing out from the first air flow channel 100 and the second air flow channel 200 has different temperature and humidity, the air flowing out from the first air flow channel 100 is sent to the corresponding drying area from the first air outlet 104, and the air flowing out from the second air flow channel 200 is sent to another drying area from the second air outlet 202, so that the air with different temperature and humidity can be provided, and the requirements of different materials on different temperature and humidity of the drying air are met.
In some embodiments of the utility model, still be equipped with subcooler 108 in the first airflow channel 100, the air-out side of evaporimeter 106 is located to subcooler 108, still include subcooler 108 in the first refrigerant return circuit 304, subcooler 108 concatenates between first condenser 107 and second condenser 204 and evaporimeter 106, the refrigerant export of first condenser 107 and the refrigerant export of second condenser 204 all with the refrigerant import of subcooler 108 with pipe connection, the refrigerant export of subcooler 108 and the refrigerant entry of evaporimeter 106 with pipe connection.
The first compressor 301 compresses a refrigerant into a high-temperature and high-pressure liquid, the high-temperature and high-pressure liquid enters the first condenser 107 and the second condenser 204 to dissipate heat, and air passing through the first condenser 107 and the second condenser 204 is heated; then the liquid refrigerant enters the subcooler 108, then the refrigerant enters the evaporator 106 to be evaporated and absorb heat, the heat in the air flowing through the evaporator 106 is absorbed by the evaporator 106, the water in the air is analyzed after the temperature of the air is reduced to the dew point, and the purpose of dehumidification is achieved; then, the refrigerant flows into the first compressor 301 again to realize circulation flow and heat exchange. Because the subcooler 108 is located at the air outlet side of the evaporator 106, the temperature of the air flowing through the subcooler 108 is low, and the refrigerant is cooled, so that the refrigerant can absorb more heat in the air, the cooling amplitude and the cooling speed of the air are improved, more moisture is separated out, the dehumidification effect is improved, and the energy consumption is reduced.
In order to control the flow rate of the refrigerant entering the evaporator 106 and improve the heat absorption effect of the refrigerant in the evaporator 106, a throttling element 109 is provided on a pipe connecting the subcooler 108 and the evaporator 106. The flow rate of the refrigerant entering the evaporator 106 can be controlled by adjusting the restriction element 109 to control the size of the flow cross-section of the conduit.
In some embodiments of the present invention, the refrigerant outlet of the first condenser 107 and the refrigerant outlet of the second condenser 204 are disposed at the same height. The refrigerant outlet of the first condenser 107 and the refrigerant outlet of the second condenser 204 are arranged at the same height and communicated with each other through a pipeline, so that the refrigerants in the first condenser 107 and the second condenser 204 keep the same liquid level height, the first condenser 107 and the second condenser 204 keep higher heat dissipation efficiency, and adverse effects on the circulation process of the refrigeration system caused by the overhigh liquid level in one of the condensers are avoided.
Further, the first refrigerant circuit 304 further includes a liquid sealing structure 302, and the liquid sealing structure 302 is connected in series between the first condenser 107 and the evaporator 106, and between the second condenser 204 and the evaporator 106. The liquid seal structure 302 can prevent the gaseous refrigerant in the evaporator 106 from flowing back to the condenser, thereby improving the operation stability of the condensation process. The liquid seal structure 302 can be a U-shaped oil storage pipe, and a part of liquid refrigerant must be reserved in the U-shaped oil storage pipe, so that the function of blocking gaseous refrigerant is achieved.
In some embodiments of the present invention, the first air flow channel 100 includes a dehumidifying channel 101 and a heating channel 102 which are communicated with each other, the head end of the dehumidifying channel 101 is provided with a first air return opening 103, the end of the heating channel 102 is provided with a first air outlet 104, the evaporator 106 and the subcooler 108 are disposed in the dehumidifying channel 101, and the first condenser 107 is disposed in the heating channel 102. The first blower 105 may be provided in the dehumidification passage 101 or the heating passage 102. An air heat regenerator 303 is arranged between the dehumidification channel 101 and the heating channel 102, the air heat regenerator 303 comprises a shell, a first heat exchange channel and a second heat exchange channel which can exchange heat with each other are arranged in the shell, two air flows respectively flow in the first heat exchange channel and the second heat exchange channel, a heat conducting medium is arranged between the first heat exchange channel and the second heat exchange channel, the heat conducting medium is usually a metal plate, and therefore the air flows in the first heat exchange channel and the second heat exchange channel can exchange heat. The first heat exchange channel is provided with a first air inlet and a first air outlet, the second heat exchange channel is provided with a second air inlet and a second air outlet, the first air inlet is a first air return opening 103, the head end of the dehumidifying channel 101 is connected with the first air outlet, the tail end of the dehumidifying channel 101 is connected with the second air inlet, and the head end of the heating channel 102 is connected with the second air outlet.
The air with higher temperature passes through the first heat exchange channel and then flows through the evaporator 106, the air with lower temperature and cooled by the evaporator 106 passes through the second heat exchange channel and then reaches the condenser, the air with higher temperature and the air with lower temperature exchange heat in the air heat regenerator 303, so that the air flowing through the evaporator 106 is cooled first, the air passing through the first condenser 107 is heated first, and the utilization rate of heat is improved. In addition, the air cooled by the evaporator 106 firstly passes through the subcooler 108 and then reaches the air regenerator 303, the temperature of the air at the air outlet side of the evaporator 106 is the lowest, the refrigerant in the subcooler 108 can obtain better subcooling degree, and better dehumidification and energy consumption reduction effects are achieved.
Further, a first regulating valve is arranged on the second air return opening 201. The first adjusting valve is arranged at the second air return inlet 201, so that the inlet flow of return air can be adjusted, the return air quantity is controlled, the temperature and humidity parameters of outlet air are adjusted, and the running performance of the dehumidifier is further improved. The first adjusting valve can adopt a manual or electric adjusting valve to adjust the size of the flow section of the second air return opening 201 and control the air inlet flow.
In some embodiments of the present invention, the utility model discloses still include third airflow channel 400, the side of second airflow channel 200 is located to third airflow channel 400, the both ends of third airflow channel 400 are equipped with third return air inlet 401 and third air outlet 402 respectively, the side of third return air inlet 401 is equipped with new trend and goes into wind gap 403, be equipped with the third hair-dryer 404 of direction of drying towards third air outlet 402 in the third airflow channel 400, be equipped with third condenser 405 in the third airflow channel 400, the refrigerant entry of third condenser 405 and the pipe connection for the refrigerant export of first compressor 301, the refrigerant export of third condenser 405 and the pipe connection for the refrigerant entry of evaporimeter 106.
The third airflow channel 400 is provided with a fresh air inlet 403, fresh air of an external environment is introduced, the temperature and humidity of return air flowing through the third airflow channel 400 can be adjusted by introducing fresh air according to temperature and humidity parameters of the fresh air, air with temperature and humidity different from those of the first airflow channel 100 and the second airflow channel 200 is obtained, and the air is sent to a corresponding drying area through the third air outlet 402, so that the types of materials which can be dried are increased.
Further, a second regulating valve is arranged on the third air return port 401. The second regulating valve is arranged at the third air return inlet 401, so that the inlet flow of return air can be regulated, the return air quantity is controlled, the temperature and humidity parameters of outlet air are regulated, and the running performance of the dehumidifier is further improved.
Further, a third regulating valve is arranged on the fresh air inlet 403. The third regulating valve is installed at the fresh air inlet 403 to regulate the inlet flow of fresh air, so that the temperature and humidity of air in the third airflow channel 400 can be regulated more conveniently, and the operation performance of the dehumidifier is further improved.
According to the utility model discloses heat pump drying system of second aspect embodiment, include according to the utility model discloses the heat pump drying device of segmentable of the above-mentioned first aspect embodiment still includes the drying chamber, and first return air inlet 103, second return air inlet 201, first air outlet 104 and second air outlet 202 all communicate with the indoor of drying chamber. Specifically, the heat pump drying device can be arranged indoors or outdoors in the drying chamber, different drying areas are arranged between the drying chambers, the first air outlet 104 and the second air outlet 202 are respectively connected with the different drying areas, the different drying areas are provided with communicated air return outlets, the first air return opening 103 and the second air return opening 201 are both connected with the air return outlets, air in the different drying areas is collected and enters the first air return opening 103 and the second air return opening 201 through the air return outlets, and then enters the different drying areas from the first air outlet 104 and the second air outlet 202, so that the air in the drying chambers can be circularly dehumidified and heated.
According to the utility model discloses heat pump drying system, through adopting foretell segmentable heat pump drying device, from the air of first air outlet 104 and the different humiture of second air outlet 202 outflow and send to the different dry area in the drying chamber respectively, satisfy the drying requirement of different materials. The first air outlet 104 and the second air outlet 202 can also simultaneously output air to the same drying area, so that the amount of air for cooling and dehumidifying in the first air flow channel 100 is reduced, the lower humidity of the drying area can be kept, and the energy consumption for cooling and dehumidifying is reduced.
The return air in different drying areas is mixed and then enters the first air flow channel 100 and the second air flow channel 200, the return air in the first air flow channel 100 can be dried continuously, although the evaporator 106 is not arranged in the second air flow channel 200 for dehumidification, the return air entering the second air flow channel 200 can be dried indirectly, and the situation that the humidity of the air in the drying area corresponding to the second air flow channel 200 is increased continuously can be avoided.
In some embodiments of the present invention, referring to fig. 3, the heat pump drying system further includes a first indoor heat exchanger 501, a first outdoor heat exchanger 502, and a first four-way valve 503, the first indoor heat exchanger 501 is disposed in the drying chamber, the first outdoor heat exchanger 502 is disposed outside the drying chamber, the first indoor heat exchanger 501 and the first outdoor heat exchanger 502 are connected by a pipe to form a first refrigerant branch 506, two ends of the first refrigerant branch 506 are respectively provided with a first port and a second port, a first refrigerant inflow branch pipe 504 is connected to a refrigerant inlet of the first compressor 301, a first refrigerant outflow branch pipe 505 is connected to a refrigerant outlet of the first compressor 301, the first four-way valve 503 is provided with four valve ports, the first port, the second port, a port of the first refrigerant inflow branch pipe 504, and a port of the first refrigerant outflow branch pipe 505 are respectively connected to the four valve ports of the first four-way valve 503 in a one-to one correspondence manner, the first four-way valve 503 is used for switching the flow direction of the refrigerant in the first refrigerant branch 506.
The first four-way valve 503 is provided with four ports, which are a first port, a second port, a third port and a fourth port, respectively, a switching valve core is arranged in the first four-way valve 503, and the switching valve core can switch two communication states of the four ports, such as a first state: the first valve port is communicated with the second valve port, the third valve port is communicated with the fourth valve port, and the valve can be switched to a second state: the first valve port is communicated with the third valve port, and the second valve port is communicated with the fourth valve port. The flow direction of the refrigerant in the first refrigerant outflow branch pipe 505 and the first refrigerant inflow branch pipe 504 is constant. The first port is provided at a side close to the first indoor heat exchanger 501, and the second port is provided at a side close to the first outdoor heat exchanger 502. In practice, the connection mode may be that the port of the first refrigerant outflow branch pipe 505 is connected to the first valve port, the port of the first refrigerant inflow branch pipe 504 is connected to the third valve port, the first port is connected to the second valve port, and the second port is connected to the fourth valve port. In the first state, the refrigerant flowing out of the first compressor 301 sequentially flows through the first indoor heat exchanger 501 and the second outdoor heat exchanger 602, the first indoor heat exchanger 501 functions as a condenser, and the first outdoor heat exchanger 502 functions as an evaporator to heat and raise the temperature of the air in the dry room. When switching to the second state, the refrigerant that flows out from first compressor 301 flows through first outdoor heat exchanger 502 and first indoor heat exchanger 501 in proper order, and first outdoor heat exchanger 502 plays the effect of condenser, and first indoor heat exchanger 501 plays the effect of evaporimeter, and the air cooling in the drying chamber to reach the effect of adjusting the drying chamber temperature.
The second compressor 604 may be separately provided in addition to the first compressor 301 to perform the outdoor and indoor heat exchange with the drying chamber, and the second outdoor heat exchanger 602 and the second indoor heat exchanger 601 constitute an independent heat exchange system, referring to fig. 4. The heat pump drying system further comprises a second indoor heat exchanger 601, a second outdoor heat exchanger 602, a second four-way valve 603 and a second compressor 604, wherein the second indoor heat exchanger 601 is arranged in the room of the drying chamber, the second outdoor heat exchanger 602 is arranged outside the drying chamber, the second indoor heat exchanger 601 and the second outdoor heat exchanger 602 are connected through a pipeline to form a second refrigerant branch 607, both ends of the second refrigerant branch 607 are respectively provided with a third port and a fourth port, a refrigerant inlet of the second compressor 604 is connected with a second refrigerant inflow pipe 605, a refrigerant outlet of the second compressor 604 is connected with a second refrigerant outflow pipe 606, the second four-way valve 603 is provided with four valve ports and a third port, the fourth port, the port of the second refrigerant inflow pipe 605, and the port of the second refrigerant outflow pipe 606 are connected to four ports of the second four-way valve 603 in a one-to-one correspondence, and the second four-way valve 603 is configured to switch a flow direction of the refrigerant in the second refrigerant branch 607. Therefore, an independent heat exchange system can be formed without depending on the operation of the first compressor 301, and the stability of indoor temperature regulation of the drying chamber is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various equivalent modifications or substitutions can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (13)
1. A sectionalized heat pump drying apparatus, comprising:
the two ends of the first air flow channel are respectively provided with a first air return opening and a first air outlet, and an evaporator and a first condenser are sequentially arranged in the first air flow channel from the first air return opening to the air outlet;
the first blower is used for driving airflow to enter the first airflow channel from the first air return opening and send the airflow out from the first air outlet;
the second airflow channel is arranged beside the first airflow channel, a second air return opening and a second air outlet are respectively arranged at two ends of the second airflow channel, a second blower with the blowing direction facing the second air outlet is arranged in the second airflow channel, and a second condenser is arranged in the second airflow channel;
the second air blower is used for driving the air flow to enter the second air flow channel from the second air return opening and send out from the second air outlet;
a first compressor;
the first compressor, the first condenser, the second condenser and the evaporator are connected through pipelines to form a first refrigerant loop, a refrigerant inlet of the first condenser and a refrigerant inlet of the second condenser are connected with pipelines for a refrigerant outlet of the first compressor, a refrigerant outlet of the first condenser and a refrigerant outlet of the second condenser are connected with pipelines for a refrigerant inlet of the evaporator, and a refrigerant outlet of the evaporator is connected with pipelines for a refrigerant inlet of the first compressor.
2. The sectionalized heat pump drying device of claim 1, wherein a subcooler is further arranged in the first air flow passage, the subcooler is arranged on an air outlet side of the evaporator, the subcooler is further included in the first refrigerant loop, the subcooler is connected in series between the first condenser and the second condenser, and the evaporator, a refrigerant outlet of the first condenser and a refrigerant outlet of the second condenser are both connected with a refrigerant inlet of the subcooler by a pipeline, and a refrigerant outlet of the subcooler is connected with a refrigerant inlet of the evaporator by a pipeline.
3. The sectionalized heat pump drying apparatus of claim 2, wherein a throttling element is provided on a pipe connecting the subcooler and the evaporator.
4. The sectionalized heat pump drying device according to claim 1, wherein the refrigerant outlet of the first condenser and the refrigerant outlet of the second condenser are disposed at the same height.
5. The sectionalized heat pump drying device of claim 1, further comprising a liquid seal structure in the first refrigerant circuit, wherein the liquid seal structure is connected in series between the first condenser and the second condenser and the evaporator.
6. The sectional heat pump drying device of claim 1, wherein the first air channel comprises a dehumidifying channel and a heating channel which are communicated with each other, the first air return opening is arranged at the head end of the dehumidifying channel, the first air outlet is arranged at the tail end of the heating channel, the evaporator and the subcooler are arranged in the dehumidifying channel, and the first condenser is arranged in the heating channel;
dehumidification passageway with be equipped with the air regenerator between the heating channel, the air regenerator is equipped with first heat transfer passageway and the second heat transfer passageway that can carry out mutual heat transfer, first heat transfer passageway is equipped with first air inlet and first gas outlet, second heat transfer passageway is equipped with second air inlet and second gas outlet, first air inlet does first return air mouth, the head end of dehumidification passageway with first gas outlet is connected, the end of dehumidification passageway with the second air inlet is connected, the head end of heating channel with the second gas outlet is connected.
7. The sectionalized heat pump drying device according to claim 1, wherein a first regulating valve is arranged on the second air return opening.
8. The sectionalized heat pump drying device according to any one of claims 1 to 7, further comprising a third airflow channel, wherein the third airflow channel is disposed beside the second airflow channel, a third air return inlet and a third air outlet are respectively disposed at two ends of the third airflow channel, a fresh air inlet is disposed beside the third air return inlet, a third blower is disposed in the third airflow channel, and has an air blowing direction facing the third air outlet, a third condenser is disposed in the third airflow channel, a refrigerant inlet of the third condenser is connected to the refrigerant outlet of the first compressor through a pipe, and a refrigerant outlet of the third condenser is connected to the refrigerant inlet of the evaporator through a pipe.
9. The sectionalized heat pump drying device according to claim 8, wherein a second regulating valve is arranged on the third air return opening.
10. The sectionalized heat pump drying device of claim 8, wherein a third adjusting valve is arranged on the fresh air inlet.
11. A heat pump drying system comprising a drying chamber and a segmented heat pump drying apparatus as claimed in any one of claims 1 to 10, wherein the first return air inlet, the second return air inlet, the first air outlet and the second air outlet are all in communication with the chamber of the drying chamber.
12. The heat pump drying system according to claim 11, further comprising a first indoor heat exchanger, a first outdoor heat exchanger, and a first four-way valve, wherein the first indoor heat exchanger is disposed in the drying chamber, the first outdoor heat exchanger is disposed outside the drying chamber, the first indoor heat exchanger and the first outdoor heat exchanger are connected by a pipe to form a first refrigerant branch, two ends of the first refrigerant branch are respectively provided with a first port and a second port, a first refrigerant inflow branch pipe is connected to a refrigerant inlet of the first compressor, a first refrigerant outflow branch pipe is connected to a refrigerant outlet of the first compressor, the first four-way valve is provided with four valve ports, and the first port, the second port, a port of the first refrigerant inflow branch pipe, and a port of the first refrigerant outflow branch pipe are respectively connected to four valve ports of the first four-way valve in a one-to-one correspondence manner, the first four-way valve is used for switching the flowing direction of the refrigerant in the first refrigerant branch.
13. The heat pump drying system according to claim 11, further comprising a second indoor heat exchanger, a second outdoor heat exchanger, a second four-way valve, and a second compressor, wherein the second indoor heat exchanger is disposed inside the drying chamber, the second outdoor heat exchanger is disposed outside the drying chamber, the second indoor heat exchanger and the second outdoor heat exchanger are connected by a pipe to form a second refrigerant branch, a third port and a fourth port are respectively disposed at two ends of the second refrigerant branch, a second refrigerant inflow pipe is connected to a refrigerant inlet of the second compressor, a second refrigerant outflow pipe is connected to a refrigerant outlet of the second compressor, the second four-way valve has four valve ports, and the third port, the fourth port, a port of the second refrigerant inflow pipe, and a port of the second refrigerant outflow pipe are respectively connected to the four valve ports of the second four-way valve in a one-to-one correspondence manner, and the second four-way valve is used for switching the flow direction of the refrigerant in the second refrigerant branch.
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| CN202020794411.3U CN212566773U (en) | 2020-05-13 | 2020-05-13 | Segmented heat pump drying device and heat pump drying system |
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| CN202020794411.3U CN212566773U (en) | 2020-05-13 | 2020-05-13 | Segmented heat pump drying device and heat pump drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113273562A (en) * | 2021-06-15 | 2021-08-20 | 顺通(烟台市经济技术开发区)电力设计有限公司 | Application method of high-voltage power tower big data acquisition and bird repelling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273562A (en) * | 2021-06-15 | 2021-08-20 | 顺通(烟台市经济技术开发区)电力设计有限公司 | Application method of high-voltage power tower big data acquisition and bird repelling device |
| CN113273562B (en) * | 2021-06-15 | 2022-06-03 | 国网冀北电力有限公司廊坊供电公司 | Application method of high-voltage power tower big data acquisition and bird repelling device |
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