CN211345711U - Heat pump fresh air fan system with condensed water heat recovery function - Google Patents

Abstract

The utility model discloses a take heat pump recovery system of condensate water heat recovery belongs to air source heat pump technical field, the utility model discloses a retrieve the comdenstion water, utilize the surplus cold of comdenstion water to cool down to the condenser of heat pump to reach the purpose that improves the heat pump performance, have simple structure, convenient to use and energy-concerving and environment-protective characteristics. The technical scheme is as follows: a heat pump fresh air fan system with condensed water heat recovery comprises a main box body, a first air duct pipe and a second air duct pipe, wherein a heat exchanger is installed in the main box body and is provided with a first inlet and a second inlet, a heat pump device, a spraying device and a first heat exchanger are installed in the first air duct pipe, and the heat pump device comprises a compressor, a throttling device and a four-way reversing valve; and a second heat exchanger and a spraying device are arranged in the second air duct pipe, and the spraying device sprays the condensate water generated by the second heat exchanger to the first heat exchanger.

Description

Heat pump fresh air fan system with condensed water heat recovery function

Technical Field

The utility model belongs to the technical field of air source heat pump, a take new fan system of heat pump of condensation water heat recovery is related to.

Background

At present, along with the improvement of city construction development and people living standard, the comfortableness and the health of indoor environment are more and more concerned by people, people also put forward the requirement on the indoor air quality when carrying out temperature and humidity regulation and control on air, and the new fan of heat pump is more and more popular by people because of the advantages of flexible arrangement, energy saving, high efficiency, health and environmental protection, and the use of the new fan of heat pump is also popularized and applied to a certain degree.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art:

when the air source heat pump is used in summer, when the temperature of the surface of the evaporator is lower than the dew point temperature of the ambient air, water vapor in the air is condensed on the surface of the evaporator to form a water film, and the ambient air of the water film and the water film continuously perform heat and mass exchange to generate condensed water. The condensed water is condensed from the surface of the evaporator, and the temperature of the condensed water is relatively low, and the amount of the condensed water is large in an environment with a large moisture load. According to the working principle of a general heat pump system, when the refrigerating capacity is 1kcal/h, about 0.3kg of water is evaporated, in a general refrigeration air conditioner, most of condensed water is directly discharged through a condensed water pipe, energy waste exists to a certain extent, and the amount of the generated condensed water is a considerable part of water resource as the air conditioner is used more frequently. The surface temperature of a general surface heat exchanger is 7-12 ℃, and after the heat and moisture exchange process with air, the temperature of condensed water is generally within the range of 10-15 ℃, and the condensed water can be used as an auxiliary cold source.

Because the condensed water of the heat pump has a large amount of residual cold, the water temperature is relatively low, if the condensed water of the heat pump is recovered and then is utilized on the condenser, the residual cold is effectively utilized, so that the condensing temperature and pressure are reduced, the energy efficiency ratio is improved, the power consumption is reduced, and the energy is saved; and the ambient temperature around the condenser is reduced, so that the working condition of the compressor can be effectively improved, and the service life of the compressor is prolonged.

Disclosure of Invention

In view of this, the utility model aims to provide a take new fan system of heat pump of comdenstion water heat recovery, the utility model discloses can retrieve the comdenstion water, utilize the surplus cold of comdenstion water to cool down to the condenser of heat pump to reach the purpose that improves the heat pump performance, have simple structure, convenient to use and energy-concerving and environment-protective characteristics.

The inventor is through long-term exploration and attempt to and many times of experiments and efforts, continuous reform innovation, in order to solve above technical problem, the utility model provides a technical scheme is, provides a new fan system of heat pump with condensate water heat recovery, including main tank body, first air duct pipe and second air duct pipe; the main box body is provided with a heat exchanger, a first inlet and a second inlet, a heat pump device, a spraying device and a first heat exchanger are arranged in the first air duct pipe, and the heat pump device comprises a compressor, a throttling device and a four-way reversing valve; and a second heat exchanger and a spraying device are arranged in the second air duct pipe, and the spraying device sprays the condensate water generated by the second heat exchanger to the first heat exchanger.

According to a specific embodiment of a heat pump fresh air fan system with condensate water heat recovery of the present invention, the first air duct is communicated with the first inlet of the main box and the heat exchanger, and exhaust air enters the main box from the first inlet and then sequentially passes through the heat exchanger, the heat pump device, the first water discharging device, the first heat exchanger, the second water discharging device, the first fan and the first outlet; the second air duct pipe is communicated with a second inlet and a heat exchanger of the main box body, and fresh air enters the main box body from the second inlet and then sequentially passes through the heat exchanger, the second heat exchanger, the spraying device, the second fan and a second outlet.

According to a preferred embodiment of the heat pump fresh air fan system with condensed water heat recovery of the present invention, the spraying device comprises a first water storage device, a spraying pipe and a nozzle, wherein the bottom of the first water storage device is connected with the water inlet end of the spraying pipe, and the water outlet end of the spraying pipe is connected with the nozzle; the first drainage device comprises a second water receiver and a first drainage pipe; the second drain device includes a third reservoir and a second drain pipe.

According to the utility model relates to a take new fan system of heat pump of condensation water heat recovery's a further embodiment, be provided with static pressure formula level sensor, controller and variable speed water pump in first water receiver, second water receiver and the third water receiver for coordinated control drainage speed, the water level height in the adjustment water receiver.

According to the utility model relates to a take new fan system of heat pump of condensation water heat recovery's a further embodiment, be provided with in first water receiver, second water receiver and the third water receiver and open water level and minimum water level, open the water level and be the water level that variable speed water pump began to operate, minimum water level is the water level that variable speed water pump shut down.

According to the utility model relates to a take new fan system of heat pump of condensation water heat recovery's a further embodiment, the nozzle of spray pipe is towards first heat exchanger.

According to a further embodiment of the heat pump fresh air fan system with condensed water heat recovery of the present invention, the top of the first reservoir is provided with a first groove, the first groove is located at the bottom of the second air duct pipe, and the bottom of the first groove is connected to the top of the first reservoir; the top of the second water receiver is provided with a second groove, the second groove is positioned at the bottom of the first air duct pipe, and the bottom of the second groove is connected with the top of the second water receiver; the top of the third water reservoir is provided with a third groove which is positioned at the bottom of the first air duct pipe, and the bottom of the third groove is connected to the top of the third water reservoir.

According to the utility model relates to a take new fan system of heat pump of condensation water heat recovery's a further embodiment, install air cleaner in the second entry for air-purifying.

According to the utility model relates to a take new fan system of heat pump of condensation water heat recovery's a further embodiment, spray set is located the bottom of second air duct pipe.

According to a further embodiment of the heat pump fresh air fan system with condensate water heat recovery of the present invention, the first water drain device is located at the bottom of the first air duct pipe; the second drainage device is positioned at the bottom of the first air duct pipe.

Compared with the prior art, one of the technical solutions has the following advantages:

a) the condensing unit collects the condensed water generated by the heat pump, effectively utilizes the residual cold of the condensed water to the condenser, reduces the condensing temperature and pressure, improves the energy efficiency ratio, reduces the power consumption, saves the energy, effectively improves the working condition of the compressor, and prolongs the service life of the compressor.

b) The heat exchanger is adopted to recycle the energy in the exhaust air, thereby realizing the conversion and the reutilization of the energy.

c) The first water receiver, the second water receiver and the third water receiver are provided with static pressure type liquid level sensors, a controller and a variable speed water pump for linkage control, and when the static pressure type liquid level sensors detect that the condensed water liquid level in the water receivers is lower than a set lowest water level, the variable speed water pump stops running; when the static pressure type liquid level sensor detects that the liquid level of condensed water in the water receiver reaches a set starting water level, the variable speed water pump starts to operate; and the rotating speed of the variable speed water pump is in positive correlation with the condensed water level in the water receiver detected by the static pressure type liquid level sensor, so that unnecessary energy waste is avoided, the service life of the equipment is prolonged, the automatic control is realized, and the operation is simplified.

d) The nozzle of the spray pipe is arranged towards the first heat exchanger, so that the condensed water is guided to the first heat exchanger to play a role in guiding.

e) The first groove is positioned at the bottom of the second air duct pipe, and the bottom of the first groove is connected with the top of the first water receiver; the second groove and the third groove are positioned at the bottom of the first air duct pipe, wherein the bottom of the second groove is connected to the top of the second water reservoir, and the bottom of the third groove is connected to the top of the third water reservoir; such an arrangement utilizes the effect of gravity to directly recover and reuse the condensate or to directly drain the condensate.

f) And an air filter is arranged in the second inlet and used for treating and purifying air, so that the air quality is improved, and the cleanliness of the air entering a room is ensured.

g) The spraying device is located behind the second heat exchanger, so that condensed water can be recycled conveniently, and the collected condensed water can be sprayed to the first heat exchanger conveniently in front of the second fan and at the bottom of the second air duct pipe.

h) The first drainage device is positioned behind the heat pump device, in front of the first heat exchanger and at the bottom of the first air duct pipe; the second drainage device is located the rear of first heat exchanger, in the place ahead of first fan, the bottom of first wind channel pipe, and such setting has improved the collection efficiency and the exhaust efficiency of comdenstion water, avoids the intraductal ponding of wind channel too much to cause equipment trouble.

i) The problems that the pollution and the damage of the building outer wall caused by the disordered discharge of the condensed water of the heat pump influence the life of residents and the like are solved, and the heat pump has important significance for building maintenance and environmental protection.

j) The utility model discloses simple structure, convenient to use has not only practiced thrift the energy but also has protected the environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a heat pump fresh air fan system with condensate water heat recovery according to a preferred embodiment of the present invention.

The labels in the figure are respectively: 100 main box, 101 heat exchanger, 110 first air duct, 111 first inlet, 112 heat pump device, 113 first water draining device, 1131 second water receiver, 1132 first water draining pipe, 114 first heat exchanger, 115 second water draining device, 1151 third water receiver, 1152 second water draining pipe, 116 first fan, 117 first outlet, 120 second air duct, 121 second inlet, 122 second heat exchanger, 123 spray device, 1231 first water receiver, 1232 water spraying pipe, 124 second fan, 125 second outlet.

Path I shows in the figure the utility model discloses well route of airing exhaust the process, path II shows the utility model discloses the route that well new trend passed through.

Detailed Description

The following description is made with reference to the accompanying drawings and a specific embodiment.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Referring to fig. 1, the heat pump fresh air fan system with condensed water heat recovery described in this embodiment includes a main cabinet 100, a first air duct 110, and a second air duct 120.

1. And (3) working condition of an exhaust path I:

the exhaust air passes through the first inlet 111, the heat exchanger 101, the heat pump device 112, the first drainage device 113, the first heat exchanger 114, the second drainage device 115, the first fan 116 and the first outlet 117 in sequence from the inlet fresh air blower system to the outlet fresh air blower system.

The specific process is as follows:

air exhaust enters the main box body 100 through the first inlet 111, then enters the heat exchanger 101, carries out heat energy exchange on the air exhaust and the fresh air entering through the heat exchanger 101, carries out preliminary cooling on the fresh air through the air exhaust when the outdoor temperature is higher than the indoor temperature, and carries out preliminary heating on the fresh air through the air exhaust when the outdoor temperature is lower than the indoor temperature.

Then when the exhaust air is further processed under the action of the heat pump device 112 and the first heat exchanger 114, a part of condensed water generated in the working process of the first heat exchanger 114 automatically flows into the second water receiver 1131 along the second groove under the action of gravity for storage; another portion of the condensate produced also automatically flows by gravity down the third trough to the third reservoir 1151 for storage.

A static pressure type liquid level sensor, a controller and a variable speed water pump are provided in the second water reservoir 1131 for controlling the drainage speed and the level of the condensed water in a linkage manner.

The second water storage device 1131 is also provided with a starting water level and a lowest water level, and when the static pressure type liquid level sensor detects that the condensed water liquid level in the second water storage device 1131 is lower than the set lowest water level, the information is transmitted to the controller for processing and conversion, so that the variable speed water pump is controlled to stop running; when the static pressure type liquid level sensor detects that the condensed water liquid level in the second water receiver 1131 reaches the set starting water level, the information is transmitted to the controller for processing and conversion, and then the variable speed water pump is controlled to start to operate, and the rotating speed of the variable speed water pump and the condensed water liquid level detected by the static pressure type liquid level sensor are in positive correlation.

The third reservoir 1151 is arranged to operate in the same manner and operate in the same manner as the second reservoir 1131 to avoid excessive condensation from affecting the normal operation of the device.

After the variable speed water pump is turned on in the second reservoir 1131 or the third reservoir 1151, the condensate in the second reservoir 1131 is drained out along the first drain 1132 and the condensate in the third reservoir 1151 is drained out along the second drain 1152.

After further processing of the exhaust air by the heat pump unit 112 and the first heat exchanger 114 to discharge criteria, the exhaust air is finally discharged to the outside of the room from the first outlet 117 by the first fan 116.

2. Fresh air path II operating mode:

fresh air passes through the second inlet 121, the heat exchanger 101, the second heat exchanger 122, the spraying device 123, the second fan 124 and the second outlet 125 in sequence from the fresh air inlet system to the fresh air outlet system.

The specific process is as follows:

fresh air enters the main box body 100 through the second inlet 121, and then enters the air filter through the second inlet 121 to be purified, so that the cleanliness of the air entering the room is guaranteed.

Then the new trend enters into heat exchanger 101, carries out heat energy exchange through heat exchanger 101 to the exhaust of entering and new trend, carries out preliminary cooling to the new trend through airing exhaust when outdoor temperature is higher than indoor temperature, carries out preliminary intensification to the new trend through airing exhaust when outdoor temperature is less than indoor temperature.

The primarily treated fresh air is further treated by the second heat exchanger 122, and condensed water generated during the operation of the second heat exchanger 122 automatically flows into the first water storage 1231 along the first groove by the action of gravity to be stored.

A static pressure level sensor, a controller and a variable speed water pump are provided in the first water reservoir 1231 for controlling the operation of the shower device 123 in a coordinated manner.

The first water storage 1231 is also provided with an opening water level and a lowest water level, and when the static pressure type liquid level sensor detects that condensed water in the first water storage 1231 is lower than the set lowest water level, the information is transmitted to the controller for processing and conversion, so that the variable speed water pump is controlled to stop running; when the static pressure type liquid level sensor detects that the liquid level of the condensed water in the first water storage device 1231 reaches a set starting water level, the information is transmitted to the controller to be processed and converted, and then the variable speed water pump is controlled to start to operate; and, the rotational speed of variable speed water pump and static pressure formula level sensor detect the comdenstion water liquid level in first water receiver 1231 and be positive correlation, avoid the too much operation that influences equipment of comdenstion water.

In spray set 123, the bottom of first water receiver 1231 is connected spray pipe 1232 water inlet end, and spray pipe 1232 water outlet end connects the nozzle, and the comdenstion water receives the effect of gravity to flow through spray pipe 1232 when variable speed water pump opens, because spray pipe 1232's nozzle is towards first heat exchanger, has the effect of direction at the drainage spraying in-process, sprays the comdenstion water accuracy to first heat exchanger 114 on.

Finally, after the fresh air is processed by the second heat exchanger to reach the air supply standard, the fresh air is sent into the room from the second outlet 125 through the action of the second fan 124.

The following detailed description of the present invention is made with reference to fig. 1, and the present invention is divided into the following three operating modes:

1. transition season working conditions:

in the transition season, the temperature of outdoor air is not greatly different from that of indoor air, but indoor exhaust air still has recovery value. At this time, the fresh air enters the heat exchanger 101 through the second inlet 121, the air filter is installed in the second inlet 121 to purify the fresh air, and the exhaust air enters the heat exchanger 101 through the first inlet 111.

The fresh air and the exhaust air exchange heat energy through the action of the heat exchanger 101.

The fresh air is then sent into the room through the second outlet 125 by the second fan 124, and the discharge air is discharged to the outside through the first outlet 117 by the first fan 116.

2. Summer working condition:

in hot summer, the new trend gets into heat exchanger 101 through second entry 121 in, installs air cleaner in second entry 121 and carries out purification treatment to the new trend, guarantees that the air gets into indoor cleanliness factor, and it then gets into heat exchanger 101 through first entry 111 to exhaust.

Then the new trend carries out heat energy exchange through heat exchanger 101 to what get into airs exhaust and new trend, the new trend carries out further processing through second heat exchanger 122, second heat exchanger 122 operation is the evaporimeter under summer operating mode, can produce the comdenstion water when operation in summer, and first water receiver 1231 top is provided with first recess, the comdenstion water just under the effect of gravity, flow into first water receiver 1231 through first recess in, in addition, because be provided with static pressure formula level sensor in the first water receiver 1231, controller and variable speed water pump carry out coordinated control.

When the static pressure type liquid level sensor detects that the condensed water liquid level in the first water storage device 1231 is lower than the set lowest water level, the information is transmitted to the controller for processing and conversion, and then the variable speed water pump is controlled to stop running; when the static pressure type liquid level sensor detects that the condensed water liquid level in the first water storage device 1231 reaches the set starting water level, the information is transmitted to the controller for processing and conversion, and then the variable speed water pump is controlled to start to operate, and the rotating speed of the variable speed water pump and the condensed water liquid level detected by the static pressure type liquid level sensor in the first water storage device 1231 are in positive correlation.

Then, the condensed water sprays the first heat exchanger 114 through the water spray pipe 1232 and the nozzle, and since the second groove and the third groove are respectively formed at the tops of the second water storage 1131 and the third water storage 1151, a part of the condensed water flows into the second water storage 1131 through the second groove under the action of gravity, and is then discharged through the first water discharge pipe 1132; another portion of the condensed water flows into the third reservoir 1151 through the third recess by gravity and is then discharged through the second drain 1152.

Finally, after reaching the air supply temperature, the fresh air enters the room through the second outlet 125 under the action of the second fan 124; the exhaust air is further processed by the first heat exchanger 114, the first heat exchanger 114 operates as a condenser in summer conditions, and after the exhaust air reaches the exhaust standard, the exhaust air is exhausted to the outside through the first outlet 117 by the first fan 116.

3. Working conditions in winter:

in winter with cold weather, the fresh air enters the heat exchanger 101 through the second inlet 121, the air filter is installed in the second inlet 121 to purify the fresh air, the air is enabled to enter the indoor cleanliness, and the exhaust air enters the heat exchanger 101 through the first inlet 111.

Then, energy recovery is carried out on fresh air and exhaust air through the heat recovery effect of the heat exchanger 101, after the energy recovery is carried out, the flow direction of a refrigerant is opposite to that in a summer mode by using a four-way reversing valve in the heat pump device 112, at the moment, the fresh air is further processed through a second heat exchanger 122, the second heat exchanger 122 is a condenser under the working condition in winter, and then the fresh air is sent into a room through a second outlet 125 under the action of a second fan 124 after reaching the air supply temperature; the discharge air is discharged to the outside through the first outlet 117.

In the description of the present invention, it is to be understood that the terms "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "connecting" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (10)

1. A heat pump fresh air fan system with condensed water heat recovery is characterized by comprising a main box body (100), a first air duct pipe (110) and a second air duct pipe (120); a heat exchanger (101) is arranged in the main tank body (100), and a first inlet (111) and a second inlet (121) are arranged; a heat pump device (112), a spraying device (123) and a first heat exchanger (114) are arranged in the first air duct pipe (110), and the heat pump device (112) comprises a compressor, a throttling device and a four-way reversing valve; and a second heat exchanger (122) and a spraying device (123) are arranged in the second air duct pipe (120), and the spraying device (123) sprays condensed water generated by the second heat exchanger (122) to the first heat exchanger (114).

2. The heat pump fresh air fan system with condensed water heat recovery function according to claim 1, wherein the first air duct (110) is communicated with the first inlet (111) of the main tank (100) and the heat exchanger (101), and exhaust air enters the main tank (100) from the first inlet (111) and then sequentially passes through the heat exchanger (101), the heat pump device (112), the first drainage device (113), the first heat exchanger (114), the second drainage device (115), the first fan (116) and the first outlet (117); the second air duct pipe (120) is communicated with a second inlet (121) and a heat exchanger of the main box body (100), and fresh air enters the main box body (100) from the second inlet (121) and then sequentially passes through the heat exchanger (101), the second heat exchanger (122), the spraying device (123), the second fan (124) and the second outlet (125).

3. The heat pump fresh air fan system with condensed water heat recovery function according to claim 2, wherein the spraying device (123) comprises a first water storage device (1231), a water spraying pipe (1232) and a nozzle, the bottom of the first water storage device (1231) is connected with the water inlet end of the water spraying pipe (1232), and the water outlet end of the water spraying pipe (1232) is connected with the nozzle; the first drain (113) comprises a second water reservoir (1131) and a first drain pipe (1132); the second drain device (115) includes a third water reservoir (1151) and a second drain pipe (1152).

4. The heat pump fresh air fan system with condensed water heat recovery function according to claim 3, characterized in that static pressure type liquid level sensors, a controller and a variable speed water pump are arranged in the first water storage device (1231), the second water storage device (1131) and the third water storage device (1151) and are used for controlling the water discharge speed in a linkage manner and adjusting the water level in the water storage devices.

5. The heat pump fresh air fan system with condensed water heat recovery function according to claim 4, wherein the first water reservoir (1231), the second water reservoir (1131) and the third water reservoir (1151) are provided with a start water level and a minimum water level, the start water level is a water level at which the variable speed water pump starts to operate, and the minimum water level is a water level at which the variable speed water pump stops operating.

6. The heat pump fresh air fan system with condensed water heat recovery as claimed in claim 3, wherein the nozzle of the water spray pipe (1232) faces the first heat exchanger (114).

7. The heat pump fresh air fan system with condensed water heat recovery as claimed in claim 3, wherein the top of the first water reservoir (1231) is provided with a first groove; the top of the second water storage device (1131) is provided with a second groove; the top of the third water reservoir (1151) is provided with a third recess.

8. The heat pump fresh air fan system with condensed water heat recovery as claimed in claim 1, wherein an air filter is installed in the second inlet (121) for purifying air.

9. The heat pump fresh air fan system with condensed water heat recovery as claimed in claim 1, wherein the spraying device (123) is located at the bottom of the second air duct pipe (120).

10. The heat pump fresh air fan system with condensed water heat recovery as claimed in claim 2, wherein the first water discharging device (113) is located at the bottom of the first air duct pipe (110); the second drainage device (115) is located at the bottom of the first air duct pipe (110).

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