CN209877206U - Fresh air dehumidification reheating system - Google Patents
Fresh air dehumidification reheating system Download PDFInfo
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- CN209877206U CN209877206U CN201920383655.XU CN201920383655U CN209877206U CN 209877206 U CN209877206 U CN 209877206U CN 201920383655 U CN201920383655 U CN 201920383655U CN 209877206 U CN209877206 U CN 209877206U
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Abstract
The utility model discloses a new trend dehumidification reheating system belongs to the heating and ventilation air conditioner field, include: the main pipe is provided with a main pipe regulating valve which is used for regulating the flow of the gas entering from the main pipe; the bypass pipe is provided with a bypass pipe adjusting valve, and the bypass pipe adjusting valve is used for adjusting the flow of gas entering from the bypass pipe; the heat pump system is used for providing a cold and heat source for the gas entering the main pipe to exchange heat; the plate heat exchanger is used for carrying out heat exchange on the gas in the processed main pipe and the gas in the bypass pipeline; and the air supply fan is used for sucking outdoor fresh air into the main pipe and the bypass pipe and sending the processed air into the room. The utility model aims at improving the temperature of handling the back new trend, the new trend heats and sends into after the suitable temperature indoor, and the heat exchange process of two strands of new trends controls the new amount of wind of every passageway through adjusting the air valve control flow.
Description
Technical Field
The utility model relates to a new trend dehumidification reheating system belongs to the heating and ventilation air conditioner field.
Background
With the improvement of life quality of people, fresh air of the air conditioner is used more and more; on the other hand, fresh air in the temperature and humidity independent control air conditioning system needs to bear indoor load, the temperature control system must be matched with the humidity control system for use, and the realization of the humidity control system usually needs a fresh air system.
Under the refrigeration working condition in summer, the fresh air sent into the room needs to be cooled and dehumidified. The cooling and dehumidifying method commonly used at present mainly comprises cooling and dehumidifying, wherein a household small fresh air processing system mainly adopts a direct expansion type cooling mode. The direct expansion type system meeting the dehumidification requirement is low in evaporation temperature (about 5 ℃), and low in air supply temperature after dehumidification, and indoor comfort is easily reduced when the direct expansion type system is directly fed into a room. At present, for the problem of low air supply temperature, fresh air after cooling and dehumidification can be subjected to reheating treatment, and the temperature is heated to meet the requirement of human body comfort and then sent into a room.
The temperature of the air supply after cooling and dehumidification is low, and the improvement of the air supply temperature in summer by adopting an economical and energy-saving treatment mode is particularly important.
SUMMERY OF THE UTILITY MODEL
The fresh air system provides a good indoor environment, the fresh air is cooled and dehumidified under the refrigeration working condition and then sent into a room, the air supply temperature is too low, the air port is easy to dewfall, and the cold and heat quantity of the processed fresh air is offset in a reheating mode. The utility model provides an improve the temperature of handling the back new trend, the new trend heats and sends into indoor after the suitable temperature, and the heat exchange process of two strands of new trends passes through the fresh air volume of adjusting the air valve control flow, control every passageway.
The utility model discloses a following technical scheme realizes:
a fresh air dehumidification reheating system comprising:
the main pipe is provided with a main pipe regulating valve, and the main pipe regulating valve is used for regulating the flow of gas entering from the main pipe;
the bypass pipe is provided with a bypass pipe adjusting valve, and the bypass pipe adjusting valve is used for adjusting the flow of the gas entering from the bypass pipe;
a heat pump system for providing a cold and heat source for the gas entering the main pipe to exchange heat;
the plate heat exchanger is used for carrying out heat exchange on the processed gas in the main pipe and the gas of the bypass pipeline;
and the air supply fan is used for sucking outdoor fresh air into the main pipe and the bypass pipe and sending the processed air into the room.
In the technical scheme, outdoor fresh air enters the fresh air fan and then is divided into two paths, and the two paths of fresh air respectively enter the indoor heat exchanger and the plate heat exchanger and are sent into the room after being processed. The indoor heat exchanger is an evaporator under a refrigeration working condition and is a condenser under a heat supply working condition; the outdoor heat exchanger is a condenser under the refrigeration working condition and an evaporator under the heat supply working condition.
Under the working conditions of cooling and dehumidification in summer and dehumidification in greengage days, the heat pump system operates in a refrigeration working condition, and the main pipe regulating valve and the bypass pipe regulating valve regulate air volume according to the air supply working condition; under the working condition in winter, the heat pump system operates the heat supply working condition, the main pipe regulating valve is opened, and the bypass pipe regulating valve is closed; in the transition season, the heat pump system stops working, the main pipe regulating valve is opened, and the bypass regulating valve is closed.
Under the working condition of summer, outdoor high-temperature and high-humidity air enters the equipment and then is divided into two paths, one path of fresh air enters the indoor heat exchanger of the refrigeration cycle (at the moment, the indoor heat exchanger serves as an evaporator) to be cooled and dehumidified, the other path of fresh air enters the plate heat exchanger to exchange heat through the bypass pipe, the dehumidified and cooled fresh air is sent into the room after exchanging heat with the bypass fresh air in the plate heat exchanger, and the bypassed fresh air is precooled and then enters the indoor heat exchanger (at the moment, the. The sent outdoor fresh air is dehumidified and then sent into the room, so that the over-low air supply temperature is avoided. The proportion of the air output of the bypass pipe to the total fresh air quantity is small, the humidity of the fresh air needs to be controlled by the fed fresh air, and particularly the humidity load of the temperature and humidity independent control air conditioning system needs to be met. Under the working condition of summer, when the outdoor temperature is reduced, the opening degree of the main pipe regulating valve is reduced, the opening degree of the bypass pipe regulating valve is increased, and the temperature and the humidity of the supplied air are controlled.
When the heat pump system operates in the summer refrigeration working condition to cool and dehumidify fresh air, the indoor heat exchanger serves as an evaporator, the evaporating temperature adopts the low-temperature (for example 5-7 ℃), the outdoor heat exchanger serves as a condenser, the condensing temperature adopts 40-45 ℃, and the evaporating and condensing temperatures of the refrigeration system can refer to a conventional air conditioner, but are not limited to the evaporating and condensing temperatures.
Under the working condition in winter, the outdoor low-temperature air directly enters the indoor heat exchanger after entering the equipment (at the moment, the indoor heat exchanger is used as a condenser), the valve of the bypass pipe regulating valve is closed, and the heat pump system is in a winter heating mode. The main pipe regulating valve can regulate the opening according to the fresh air quantity demand and meet the air supply temperature demand by combining with air conditioner control.
The heat pump system operates in a winter refrigeration working condition, the indoor heat exchanger serves as a condenser, the condensing temperature is 40-45 ℃, the outdoor heat exchanger serves as an evaporator, the evaporating temperature is low temperature (for example, 5-7 ℃), and the evaporating and condensing temperatures of the refrigeration system can refer to a conventional air conditioner, but are not limited to the evaporating and condensing temperatures.
Under the working condition of a transition season, outdoor air is sent out after entering the equipment without being subjected to cold and heat treatment, and the heat pump system does not work. The parameters of the heat exchanger are not required, and other operation conditions can be met.
Under the working condition of the yellow plum day, outdoor high-humidity air enters the equipment and then is divided into two paths, one path of fresh air enters the indoor heat exchanger of the refrigeration cycle (at the moment, the indoor heat exchanger serves as an evaporator) to be cooled and dehumidified, the other path of fresh air enters the plate heat exchanger to exchange heat through the bypass pipe, the dehumidified and cooled fresh air is sent into the room after exchanging heat with the bypass fresh air in the plate heat exchanger, and the bypass fresh air is precooled and then enters the indoor heat exchanger (at the moment, the indoor heat exchanger. The fresh air sent into the room is sent into the room after being subjected to primary dehumidification and temperature rise, the phenomenon that the indoor comfort is reduced due to the fact that the air supply temperature is too low after dehumidification in the greenish yellow day is avoided, and the bypass air quantity of the bypass pipe accounts for the larger proportion of the total fresh air quantity.
The heat pump system operates in a refrigeration working condition, the indoor heat exchanger serves as an evaporator, the evaporation temperature is low temperature (for example, 10-15 ℃), the outdoor heat exchanger serves as a condenser, the condensation temperature is 40-45 ℃, the evaporation temperature of the refrigeration system is increased, and the energy-saving operation of the system is facilitated, but the heat pump system is not limited to the evaporation temperature and the condensation temperature.
The heat pump system operates in a high-temperature refrigeration mode, the evaporation temperature of the indoor heat exchanger (at the moment, the indoor heat exchanger serves as an evaporator) is further increased, the proportion of the air output of the bypass pipe to the total fresh air quantity is large, and the humidity of the fresh air needs to be controlled by the fed fresh air. Under the working condition of the yellow plum day, when the outdoor humidity is reduced, the opening of the main pipe regulating valve is reduced, the opening of the bypass pipe regulating valve is increased, and the humidity of the supplied air is controlled.
Preferably, the main pipe regulating valve is communicated with the main pipe between the air inlet of the bypass pipe and the air outlet of the bypass pipe;
and according to the flowing direction of the gas in the main pipe, the gas outlet of the by-pass pipe is positioned behind the gas inlet of the by-pass pipe.
The bypass pipe regulating valve is communicated with the second bypass pipe.
In the technical scheme, the valve opening degree of the main pipe regulating valve and the bypass pipe regulating valve can be regulated according to outdoor fresh air temperature, and the air supply temperature requirement is met by combining air conditioner control.
Preferably, the bypass pipe comprises:
the air inlet end of the bypass air inlet pipe is communicated with the main pipe and is perpendicular to the main pipe;
one end of the second bypass pipe is communicated with the other end of the bypass air inlet pipe, and the second bypass pipe is parallel to the main pipe;
one end of the third bypass pipe is communicated with the other end of the second bypass pipe, and the third bypass pipe is vertically intersected with the air supply end of the main pipe;
one end of the fourth bypass pipe is communicated with the other end of the third bypass pipe, and the fourth bypass pipe is parallel to the main pipe and the second bypass pipe;
and the air outlet end of the bypass air outlet pipe is communicated with the other end of the fourth bypass pipe, and the bypass air outlet pipe is parallel to the bypass air inlet pipe and the third bypass pipe.
Preferably, the main pipe regulating valve is communicated with the outdoor air inlet pipe arranged between the air inlet of the bypass air inlet pipe and the air outlet of the bypass air outlet pipe; the bypass pipe regulating valve is communicated with the second bypass pipe.
The plate heat exchanger is positioned at the air supply end of the third bypass pipe which is vertically intersected with the main pipe, and the plate heat exchanger is respectively communicated with the third bypass pipe and the main pipe.
In the technical scheme, the plate heat exchanger is a heat recoverer, and the cold energy of air supply is recovered under the refrigeration working condition.
Preferably, the heat pump system includes:
the outdoor heat exchanger, the four-way reversing valve, the compressor, the indoor heat exchanger and the double electronic expansion valve are sequentially communicated to form a loop;
the outdoor fan is positioned behind the outdoor heat exchanger.
Preferably, the indoor heat exchanger is located on the main pipe between the air outlet of the bypass pipe and the plate heat exchanger.
Preferably, the dual electronic expansion valve is formed by connecting two electronic expansion valves in parallel in a loop of the heat pump system, and the dual electronic expansion valve is used for controlling different evaporation pressures of the evaporator.
Four pipe orifices of the four-way reversing valve are sequentially communicated with the outdoor heat exchanger, the air inlet of the compressor, the air outlet of the compressor and the indoor heat exchanger.
In the technical scheme, the four-way reversing valve changes the flow direction of the refrigerant by changing the flow channel of the refrigerant and converts the functions of a condenser and an evaporator of the air conditioning system in winter and summer, wherein in summer, the refrigerant liquid is evaporated and absorbs heat in the evaporator to form gas, and the gas releases heat in the condenser and is used for indoor cooling; in winter, the refrigerant liquid evaporates in the outdoor condenser to absorb outside heat and releases heat in the indoor evaporator for indoor heat supply.
Preferably, the number of the heat dissipation fins of the indoor and outdoor heat exchangers is adjustable according to the load.
In the technical scheme, the heat pump system can switch the refrigeration/heat supply mode according to the working condition used in winter and summer, and the refrigeration/heat supply mode is switched by adopting a four-way reversing valve.
Under the refrigeration working condition, high-temperature and high-pressure refrigerant gas discharged from the compressor enters an outdoor heat exchanger (at the moment, the outdoor heat exchanger serves as a condenser), the refrigerant is cooled in the outdoor heat exchanger (at the moment, the outdoor heat exchanger serves as the condenser) and then is changed into high-temperature and high-pressure refrigerant liquid, the high-temperature and high-pressure refrigerant liquid passes through the electronic expansion valve and then is changed into low-temperature and low-pressure refrigerant gas-liquid two-phase flow, the low-temperature and low-pressure refrigerant gas-liquid two-phase flow enters an indoor heat exchanger (at the moment, the indoor heat exchanger serves as an evaporator), the low-temperature and low-pressure refrigerant gas-liquid two-phase flow absorbs heat in the indoor heat.
Under the working condition of heat supply, high-temperature and high-pressure refrigerant gas discharged from the compressor enters an indoor heat exchanger (at the moment, the indoor heat exchanger serves as an indoor condenser), the refrigerant releases heat in the indoor heat exchanger (at the moment, the indoor heat exchanger serves as an indoor condenser), then the refrigerant is changed into high-temperature and high-pressure refrigerant liquid, the high-temperature and high-pressure refrigerant liquid enters an electronic expansion valve, the high-temperature and high-pressure refrigerant liquid passes through the electronic expansion valve, then the high-temperature and high-pressure refrigerant liquid is changed into low-temperature and low-pressure refrigerant gas-liquid two-phase flow, the low-temperature and low-pressure refrigerant gas-liquid two-phase flow absorbs heat in an outdoor evaporator.
Preferably, the air inlet of the indoor heat exchanger is communicated with the outdoor air inlet pipe of the main pipe; and the air outlet of the indoor heat exchanger is communicated with the air supply pipe of the main pipe.
Preferably, the heat pump system further includes:
and the throttler is communicated between the indoor heat exchanger and the double electronic expansion valve.
In the technical scheme, the throttler is formed by branching a thick pipe into a plurality of capillary tubes, and the flow of the refrigerant needed by the indoor heat exchanger and the outdoor heat exchanger is controlled by the pressure drop of the refrigerant flowing in the device.
Compared with the prior art, the utility model provides a pair of new trend dehumidification reheating system has following beneficial effect:
1) the utility model provides the high temperature of handling back new trend, the new trend heats and sends into indoor after the suitable temperature, and the heat exchange process of two strands of new trends passes through the fresh air volume of adjusting the air valve control flow, control every passageway.
2) In summer and under the working condition of yellow plum, outdoor high-temperature and high-humidity air is prevented from being directly sent into a room after being cooled, the air supply temperature of fresh air in summer is increased, and the indoor comfort is met.
3) The phenomenon that the fresh air is independently provided with a heat source for reheating after cooling and dehumidifying in summer is avoided, and the cold and heat offset energy consumption loss does not need to be considered for the treated fresh air.
4) Under the working condition of the yellow plum day, the evaporation temperature of the refrigeration cycle system for fresh air dehumidification is increased, and the energy efficiency coefficient of the refrigeration system is increased.
Drawings
The above features, technical features, advantages and implementations of a new wind dehumidifying and reheating system will be further described in the following detailed description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a fresh air dehumidification reheating system.
The reference numbers illustrate:
1. the system comprises an outdoor air inlet pipe 2, a main pipe regulating valve 3, an indoor heat exchanger 4, a plate type heat exchanger 5, an air supply end 6, an air supply fan 7, a bypass pipe regulating valve 8, an outdoor heat exchanger 9, a double-electronic expansion valve 10, a throttler 11, a four-way reversing valve 12, a compressor 13, an outdoor fan 14, a bypass air inlet pipe 15, a second bypass pipe 16, a third bypass pipe 17, a fourth bypass pipe 18 and a bypass air outlet pipe.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The utility model is realized by the following technical measures, as shown in figure 1:
example 1
A fresh air dehumidification reheating system is shown in FIG. 1, and comprises:
the main pipe is provided with a main pipe regulating valve 2, and the main pipe regulating valve 2 is used for regulating the flow of gas entering from the main pipe;
the bypass pipe is provided with a bypass pipe adjusting valve 7, and the bypass pipe adjusting valve 7 is used for adjusting the flow of gas entering from the bypass pipe;
the heat pump system is used for providing a cold and heat source for the gas entering the main pipe to exchange heat;
the plate heat exchanger 4 is used for carrying out heat exchange on the gas in the main pipe after treatment and the gas in the bypass pipeline;
and the air supply fan 6 is used for sucking outdoor fresh air into the main pipe and the bypass pipe and sending the treated air into the room.
In this embodiment, the outdoor fresh air is divided into two paths after entering the fresh air blower, and the two paths of fresh air respectively enter the indoor heat exchanger 3 and the plate heat exchanger 4, and are sent into the room after being processed. The indoor heat exchanger 3 is an evaporator under a refrigeration working condition and is a condenser under a heat supply working condition; the outdoor heat exchanger 8 is a condenser under a cooling working condition and an evaporator under a heating working condition.
Under the working conditions of cooling and dehumidification in summer and dehumidification in greengage days, the heat pump system operates in a refrigeration working condition, and the main pipe regulating valve 2 and the bypass pipe regulating valve 7 regulate air volume according to an air supply working condition; under the working condition in winter, the heat pump system operates the heat supply working condition, the main pipe regulating valve 2 is opened, and the bypass pipe regulating valve 7 is closed; in the transition season, the heat pump system stops working, the main pipe regulating valve 2 is opened, and the bypass pipe regulating valve 7 is closed.
In the working condition of summer, outdoor high-temperature and high-humidity air is divided into two paths after entering the equipment, one path of fresh air enters the indoor heat exchanger 3 of the refrigeration cycle (at the moment, the indoor heat exchanger 3 serves as an evaporator) to be cooled and dehumidified, the other path of fresh air is connected into the plate heat exchanger 4 to exchange heat through the bypass pipe, the dehumidified and cooled fresh air is sent into the room after exchanging heat with the bypass fresh air in the plate heat exchanger 4, and the bypass fresh air is connected into the indoor heat exchanger 3 after being precooled (at the moment, the indoor heat exchanger. The sent outdoor fresh air is dehumidified and then sent into the room, so that the over-low air supply temperature is avoided. The proportion of the air output of the bypass pipe to the total fresh air quantity is small, the humidity of the fresh air needs to be controlled by the fed fresh air, and particularly the humidity load of the temperature and humidity independent control air conditioning system needs to be met. Under the working condition of summer, when the outdoor temperature is reduced, the opening degree of the main pipe regulating valve 2 is reduced, the opening degree of the bypass pipe regulating valve 7 is increased, and the temperature and the humidity of the supplied air are controlled.
When the heat pump system operates in the summer refrigeration working condition to cool and dehumidify the fresh air, the indoor heat exchanger 3 serves as an evaporator, the evaporating temperature adopts the low-temperature (for example 5-7 ℃), the outdoor heat exchanger 8 serves as a condenser, the condensing temperature adopts 40-45 ℃, and the evaporating and condensing temperatures of the refrigeration system can refer to a conventional air conditioner, but are not limited to the evaporating and condensing temperatures.
In the working condition of the embodiment 1 in winter, the outdoor low-temperature air directly enters the indoor heat exchanger 3 after entering the equipment (at the moment, the indoor heat exchanger 3 is used as a condenser), the valve of the bypass pipe regulating valve 7 is closed, and the heat pump system is in a winter heating mode. The main pipe adjusting valve 2 can adjust the opening according to the fresh air quantity demand, and meets the air supply temperature demand by combining with air conditioner control.
The heat pump system operates in a winter refrigeration working condition, the indoor heat exchanger 3 serves as a condenser, the condensing temperature is 40-45 ℃, the outdoor heat exchanger 8 serves as an evaporator, the evaporating temperature is low temperature (for example 5-7 ℃), and the evaporating and condensing temperatures of the refrigeration system can refer to a conventional air conditioner, but are not limited to the evaporating and condensing temperatures.
In the working condition of the transition season, the outdoor air is sent out after entering the equipment and not subjected to cold and heat treatment, and the heat pump system does not work. Parameters of the indoor heat exchanger 3 and the outdoor heat exchanger 8 are not required, and other operation conditions can be met.
In the embodiment 1, under the working conditions of the yellow plum, outdoor high-humidity air enters the equipment and then is divided into two paths, one path of fresh air enters the indoor heat exchanger 3 of the refrigeration cycle (at the moment, the indoor heat exchanger 3 serves as an evaporator) to be cooled and dehumidified, the other path of fresh air is connected into the plate heat exchanger 4 through the bypass pipe to exchange heat, the dehumidified and cooled fresh air is sent into the room after exchanging heat with the bypass fresh air in the plate heat exchanger, and the bypass fresh air is precooled and then connected into the indoor heat exchanger 3 (at the moment, the indoor heat. The fresh air sent into the room is sent into the room after being subjected to primary dehumidification and temperature rise, the phenomenon that the indoor comfort is reduced due to the fact that the air supply temperature is too low after dehumidification in the greenish yellow day is avoided, and the bypass air quantity of the bypass pipe accounts for the larger proportion of the total fresh air quantity.
The heat pump system operates in a refrigeration working condition, the indoor heat exchanger 3 serves as an evaporator, the evaporation temperature is low temperature (for example, 10-15 ℃), the outdoor heat exchanger 8 serves as a condenser, the condensation temperature is 40-45 ℃, the evaporation temperature of the refrigeration system is increased, energy-saving operation of the system is facilitated, and the heat pump system is not limited to the evaporation temperature and the condensation temperature.
The heat pump system operates in a high-temperature refrigeration mode, the evaporation temperature of the indoor heat exchanger 3 (at the moment, the indoor heat exchanger 3 serves as an evaporator) is further increased, the proportion of the air supply quantity of the bypass pipe to the total fresh air quantity is large, and the humidity of the fresh air needs to be controlled by the fed fresh air. Under the working condition of the yellow plum day, when the outdoor humidity is reduced, the opening degree of the main pipe regulating valve 2 is reduced, the opening degree of the bypass pipe regulating valve 7 is increased, and the humidity of the supplied air is controlled.
Example 2
The embodiment discloses a specific implementation form of a main pipe regulating valve 2, a bypass pipe regulating valve 7, a plate heat exchanger 4, a main pipe and a bypass pipe in embodiment 1, as shown in fig. 1:
the main pipe regulating valve 2 is communicated with the main pipe between the air inlet of the by-pass pipe and the air outlet of the by-pass pipe; according to the flowing direction of the gas in the main pipe, the gas outlet of the by-pass pipe is positioned behind the gas inlet of the by-pass pipe. The bypass regulating valve 7 is connected to the second bypass 15. The valve openness of the main pipe regulating valve 2 and the bypass pipe regulating valve 7 can be regulated according to the outdoor fresh air temperature, and the air supply temperature requirement is met by combining air conditioner control.
The bypass pipe includes:
the air inlet end of the bypass air inlet pipe 14 is communicated with the main pipe, and the bypass air inlet pipe 14 is vertical to the main pipe;
a second bypass pipe 15, one end of the second bypass pipe 15 is communicated with the other end of the bypass air inlet pipe 14, and the second bypass pipe 15 is parallel to the main pipe;
a third bypass pipe 16, one end of the third bypass pipe 16 is communicated with the other end of the second bypass pipe 15, and the third bypass pipe 16 is vertically intersected with the air supply end 5 of the main pipe;
a fourth bypass pipe 17, one end of the fourth bypass pipe 17 is communicated with the other end of the third bypass pipe 16, and the fourth bypass pipe 17 is parallel to the main pipe and the second bypass pipe 15;
and the air outlet end of the bypass air outlet pipe 18 is communicated with the other end of the fourth bypass pipe 17, and the bypass air outlet pipe 18 is parallel to the bypass air inlet pipe 15 and the third bypass pipe 16.
The plate heat exchanger 4 is positioned at the air supply end 5 where the third bypass pipe 16 vertically intersects with the main pipe, and the plate heat exchanger 4 is respectively communicated with the third bypass pipe 16 and the main pipe. The plate heat exchanger 4 is a heat recoverer, and recovers the cold energy of the air supply under the refrigeration working condition.
Example 3
This specific embodiment discloses the heat pump system in embodiment 1, as shown in fig. 1, including:
the outdoor heat exchanger 8, the four-way reversing valve 11, the compressor 12, the indoor heat exchanger 3 and the double electronic expansion valve 9 are sequentially communicated to form a loop;
the outdoor fan 13 is located behind the outdoor heat exchanger 8.
The indoor heat exchanger 3 is positioned on the main pipe between the air outlet of the bypass pipe and the plate heat exchanger 4.
The double electronic expansion valve 9 is formed by connecting two electronic expansion valves in parallel in a loop of the heat pump system, and the double electronic expansion valve 9 is used for controlling different evaporation pressures of the evaporator.
Four pipe orifices of the four-way reversing valve 11 are sequentially communicated with the outdoor heat exchanger 8, the air inlet of the compressor 12, the air outlet of the compressor 12 and the indoor heat exchanger 3.
The four-way reversing valve 11 changes the flow direction of the refrigerant by changing the flow passage of the refrigerant, and changes the functions of a condenser and an evaporator of the air conditioning system in winter and summer, wherein in summer, the refrigerant liquid is evaporated and absorbs heat in the evaporator to form gas, and the gas releases heat in the condenser and is used for indoor cooling; in winter, the refrigerant liquid evaporates in the outdoor condenser to absorb outside heat and releases heat in the indoor evaporator for indoor heat supply.
And the throttler 10 is communicated between the indoor heat exchanger 8 and the double electronic expansion valve 9. The restrictor 10 is formed by branching a thick pipe into a plurality of capillary tubes, and controls the flow rate of the refrigerant required by the indoor heat exchanger 3 and the outdoor heat exchanger 8 through the pressure drop of the refrigerant flowing in the device.
The number of the radiating fins of the indoor heat exchanger 3 and the outdoor heat exchanger 8 can be adjusted according to the load.
In this embodiment, the heat pump system can switch the cooling/heating mode according to the working conditions used in winter and summer, and the four-way reversing valve 11 is used for adjusting the switching of the cooling/heating mode.
Under the refrigeration working condition, high-temperature and high-pressure refrigerant gas discharged from the compressor 12 enters the outdoor heat exchanger 8 (at this time, the outdoor heat exchanger 8 serves as a condenser), the refrigerant is cooled in the outdoor heat exchanger 8 (at this time, the outdoor heat exchanger 8 serves as a condenser) and then becomes high-temperature and high-pressure refrigerant liquid, the high-temperature and high-pressure refrigerant liquid enters the electronic expansion valve 9, the high-temperature and high-pressure refrigerant liquid becomes low-temperature and low-pressure refrigerant gas-liquid two-phase flow after passing through the electronic expansion valve 9 and enters the indoor heat exchanger 3 (at this time, the indoor heat exchanger 3 serves as an evaporator), the low-temperature and low-pressure refrigerant gas-liquid two-phase flow absorbs heat in the indoor heat exchanger 3 (at this time, the.
Under the working condition of heat supply, high-temperature and high-pressure refrigerant gas discharged from the compressor 12 enters the indoor heat exchanger 3 (at the moment, the indoor heat exchanger 3 serves as an indoor condenser), the refrigerant releases heat in the indoor heat exchanger 3 (at the moment, the indoor heat exchanger 3 serves as an indoor condenser), then the refrigerant is changed into high-temperature and high-pressure refrigerant liquid, the high-temperature and high-pressure refrigerant liquid enters the electronic expansion valve 9, the high-temperature and high-pressure refrigerant liquid is changed into low-temperature and low-pressure refrigerant gas-liquid two-phase flow after passing through the electronic expansion valve 9, the low-temperature and high-pressure refrigerant gas-liquid two-phase flow enters the outdoor heat exchanger 8 (at the moment, the outdoor heat exchanger 8 serves as an outdoor evaporator).
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a new trend dehumidification reheating system which characterized in that includes:
the main pipe is provided with a main pipe regulating valve, and the main pipe regulating valve is used for regulating the flow of gas entering from the main pipe;
the bypass pipe is provided with a bypass pipe adjusting valve, and the bypass pipe adjusting valve is used for adjusting the flow of the gas entering from the bypass pipe;
a heat pump system for providing a cold and heat source for the gas entering the main pipe to exchange heat;
the plate heat exchanger is used for carrying out heat exchange on the processed gas in the main pipe and the gas of the bypass pipeline;
and the air supply fan is used for sucking outdoor fresh air into the main pipe and the bypass pipe and sending the processed air into the room.
2. The fresh air dehumidifying and reheating system of claim 1, comprising:
the main pipe regulating valve is communicated with the main pipe between the air inlet of the by-pass pipe and the air outlet of the by-pass pipe;
and according to the flowing direction of the gas in the main pipe, the gas outlet of the by-pass pipe is positioned behind the gas inlet of the by-pass pipe.
3. The fresh air dehumidification and reheating system of claim 1, wherein the bypass pipe comprises:
the air inlet end of the bypass air inlet pipe is communicated with the main pipe and is perpendicular to the main pipe;
one end of the second bypass pipe is communicated with the other end of the bypass air inlet pipe, and the second bypass pipe is parallel to the main pipe;
one end of the third bypass pipe is communicated with the other end of the second bypass pipe, and the third bypass pipe is vertically intersected with the air supply end of the main pipe;
one end of the fourth bypass pipe is communicated with the other end of the third bypass pipe, and the fourth bypass pipe is parallel to the main pipe and the second bypass pipe;
and the air outlet end of the bypass air outlet pipe is communicated with the other end of the fourth bypass pipe, and the bypass air outlet pipe is parallel to the bypass air inlet pipe and the third bypass pipe.
4. The fresh air dehumidification and reheating system of claim 3, wherein:
the bypass pipe regulating valve is communicated with the second bypass pipe.
5. The fresh air dehumidification and reheating system of claim 3, wherein:
the plate heat exchanger is positioned at the air supply end of the third bypass pipe which is vertically intersected with the main pipe, and the plate heat exchanger is respectively communicated with the third bypass pipe and the main pipe.
6. The fresh air dehumidifying and reheating system of claim 5, wherein the heat pump system comprises:
the outdoor heat exchanger, the four-way reversing valve, the compressor, the indoor heat exchanger and the double electronic expansion valve are sequentially communicated to form a loop;
the outdoor fan is positioned behind the outdoor heat exchanger.
7. The fresh air dehumidifying and reheating system of claim 6, wherein the heat pump system further comprises:
and the throttler is communicated between the indoor heat exchanger and the double electronic expansion valve.
8. The fresh air dehumidification and reheating system of claim 6, wherein:
the indoor heat exchanger is positioned on the main pipe between the air outlet of the bypass pipe and the plate heat exchanger.
9. The fresh air dehumidification and reheating system of claim 6, wherein:
the double electronic expansion valves are formed by connecting two electronic expansion valves in parallel in a loop of the heat pump system.
10. The fresh air dehumidification and reheating system of claim 6, wherein:
four pipe orifices of the four-way reversing valve are sequentially communicated with the outdoor heat exchanger, the air inlet of the compressor, the air outlet of the compressor and the indoor heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920383655.XU CN209877206U (en) | 2019-03-25 | 2019-03-25 | Fresh air dehumidification reheating system |
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| CN201920383655.XU CN209877206U (en) | 2019-03-25 | 2019-03-25 | Fresh air dehumidification reheating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087734A (en) * | 2021-11-24 | 2022-02-25 | 美的集团武汉制冷设备有限公司 | Control method, device and equipment of air conditioning system and storage medium |
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2019
- 2019-03-25 CN CN201920383655.XU patent/CN209877206U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087734A (en) * | 2021-11-24 | 2022-02-25 | 美的集团武汉制冷设备有限公司 | Control method, device and equipment of air conditioning system and storage medium |
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