Heat pump dehumidifying and drying system

Abstract

A heat pump dehumidifying and drying system comprises a main machine body, a compressor, a first condenser, a second condenser, a first fan, a second fan, an evaporator, a water spraying device, a cooling heat exchanger, a cooling tower, a dust removal device, a double-flow-channel heat exchanger and a drying room or a multi-layer assembly line. The second condenser is arranged in the second heating cavity, and the cooling heat exchanger is arranged at the communication position of the air return channel and the dust removal cavity and forms a cooling loop with the cooling tower. The dust removal cavity, one pipeline of the double-flow-channel heat exchanger, the evaporation air inlet cavity, the evaporator, the evaporation air outlet cavity, the other pipeline of the double-flow-channel heat exchanger and the second heating cavity are sequentially communicated; the water spraying device is arranged in the evaporation air inlet cavity and is opposite to the evaporator. The first heating cavity and the second heating cavity are arranged up and down and have the characteristic of layered hot air supply, two strands of hot air converge in the drying room, and the drying efficiency is improved; a closed dehumidification drying process is adopted, so that no gas is discharged, and no odor is generated; the cooling heat exchanger and the cooling tower are arranged to prevent the system from being overheated and shut down.

Description

Technical Field

[0001] The utility model relates to a heat pump dehumidification device. Background Art

[0002] At present, the existing technology is Chinese patent 202022540609.1, a closed-cycle drying and dehumidifying heat pump device and its system. The closed-cycle drying and dehumidifying heat pump device includes a chassis, a compressor, an evaporator, a heat exchanger, a first condenser and a centrifugal fan. The lower two sides of the chassis are the first cavity and the second cavity, and the upper and lower sides of the upper part of the chassis are the third cavity and the fourth cavity. A closed-cycle drying and dehumidifying heat pump system includes a chassis, a compressor, an evaporator and a first condenser. The two sides of the compressor are respectively connected to one side of the first condenser and the evaporator, and the other side of the first condenser and the evaporator are connected to the two sides of the throttle. A liquid separator is also connected between the throttle and the evaporator. A closed-cycle drying and dehumidifying heat pump device and system, the internal air duct of the chassis of the heat pump device enables the hot and humid air to be effectively exchanged or discharged. The problem is that one air outlet cannot achieve stratified heating, and there is no system overheating protection. Utility Model Content

[0003] The utility model aims to provide a heat pump dehumidification and drying system, which has the characteristics of closed operation, stratified hot air output and prevention of system overheating and shutdown.

[0004] The utility model is implemented as follows: a heat pump dehumidification and drying system, which is special in that it includes a main body, a compressor, a first condenser, a second condenser, a first fan, a second fan, an evaporator, a water spray device, a cooling heat exchanger, a cooling tower, a dust removal device, a double-channel heat exchanger and a drying room or a multi-layer assembly line;

[0005] The main body includes a first heating chamber arranged on one side of the top, a dust removal chamber arranged on the other side, a return air channel, a second heating chamber arranged on one side of the lower part, an evaporation air inlet chamber and an evaporation air outlet chamber, and the air outlet end of the first heating chamber, the air inlet end of the return air channel and the air outlet end of the second heating chamber are arranged in sequence from top to bottom;

[0006] The first heating chamber is connected with the return air channel, and the air outlet is connected with the drying room. The first condenser is arranged on the air inlet of the first heating chamber, the first fan is arranged in the first heating chamber, and the first heating chamber is connected with the upper part of the drying room; the second condenser is arranged in the second heating chamber, and the second fan is arranged in the second heating chamber and is connected with the lower part of the drying room; the cooling heat exchanger is arranged at the connection point between the return air channel and the dust removal chamber and forms a cooling circuit with the cooling tower; the evaporator is arranged on the partition between the evaporation air inlet chamber and the evaporation air outlet chamber, the dust removal device is arranged in the dust removal chamber, the dust removal chamber, one pipeline of the double-channel heat exchanger, the evaporation air inlet chamber, the evaporator, the evaporation air outlet chamber, another pipeline of the double-channel heat exchanger and the second heating chamber are connected in sequence; the water spraying device is arranged in the evaporation air inlet chamber and opposite to the evaporator.

[0007] The heat pump dehumidification and drying system is special in that an electric heating element is also provided in the first heating chamber.

[0008] The heat pump dehumidification and drying system is special in that the power of the second condenser is greater than the power of the first condenser.

[0009] The heat pump dehumidification and drying system is special in that a circulating water pump is provided on the cooling circuit.

[0010] The utility model discloses a heat pump dehumidification and drying system, in which a first heating chamber and a second heating chamber are arranged up and down and have the characteristics of layered hot air supply. The two hot airs converge in a drying room, thereby improving the drying efficiency. In the closed dehumidification and drying process, there is no gas emission and no odor. The setting of a cooling heat exchanger and a cooling tower prevents the system from shutting down due to overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model. DETAILED DESCRIPTION

[0012] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0013] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0014] like Figure 1 As shown, a heat pump dehumidification and drying system includes a main body 1, a compressor 2, a first condenser 31, a second condenser 32, a first fan 41, a second fan 42, an evaporator 5, a water spray device 6, a cooling heat exchanger 7, a cooling tower 8, a dust removal device 9, a double-channel heat exchanger 10 and a drying room 11 or a multi-layer assembly line;

[0015] The main body 1 includes a first heating chamber 1A1 arranged on one side of the top, a dust removal chamber 1B arranged on the other side, a return air channel 1C, a second heating chamber 1A2 arranged on one side of the lower part, an evaporation air inlet chamber 1D1 and an evaporation air outlet chamber 1D2, and the air outlet end of the first heating chamber, the air inlet end of the return air channel and the air outlet end of the second heating chamber are arranged in sequence from top to bottom;

[0016] The first heating chamber 1A1 is connected to the return air channel 1C, the first condenser 31 is arranged on the air inlet of the first heating chamber 1A1, the first fan 41 is arranged in the first heating chamber 1A1, and the first heating chamber 1A1 is connected to the upper part of the drying room 11; the second condenser 32 is arranged in the second heating chamber 1A2, the second fan 42 is arranged in the second heating chamber 1A2 and is connected to the lower part of the drying room 11; the cooling heat exchanger 7 is arranged in the return air channel 1C and is connected to the dust removal chamber 1B and forms a cooling circuit with the cooling tower 8; the evaporator 5 is arranged on the partition between the evaporation air inlet chamber 1D1 and the evaporation air outlet chamber 1D2, the dust removal device 9 is arranged in the dust removal chamber 1B, the dust removal chamber 1B, a pipeline of the double-channel heat exchanger 10, the evaporation air inlet chamber 1D1, the evaporator 5, the evaporation air outlet chamber 1D2, another pipeline of the double-channel heat exchanger 10 and the second heating chamber 1A2 are connected in sequence; the water spray device 6 is arranged in the evaporation air inlet chamber 1D1 and opposite to the evaporator 5;

[0017] When the system temperature reaches a certain temperature, the cooling circuit will operate to prevent the system temperature from being too high, causing the system to stop running, and ensure the continuous operation of the system;

[0018] The dust removal device 9 is used to absorb dust from the hot air coming from the drying room;

[0019] The water spraying device sprays water to clean the evaporator to prevent dust from accumulating on the surface of the evaporator and reducing the heat exchange capacity. A drainage pipe is set at the bottom of the evaporation air inlet chamber 1D1 and the evaporation air outlet chamber 1D2, and a drainage electric valve is set on the drainage pipe;

[0020] When the system is in normal operation, the evaporator absorbs the temperature of the hot air from the temperature return channel and has a dehumidification function. After dehumidification, the air exchanges heat with the double-channel heat exchanger 10, enters the second heating chamber, is heated by the second condenser 32, and enters the lower part of the drying room 11;

[0021] The double-channel heat exchanger 10 cools the wet air before it passes through the evaporator 5, thereby improving the dehumidification effect of the evaporator. At the same time, it heats up the dry cold air after it passes through the evaporator 5, thereby increasing the outlet temperature of the air after passing through the second heat exchanger. It can be understood that the function of the double-channel heat exchanger is to exchange heat between the hot air before it passes through the evaporator and the cold air after it passes through the evaporator, thereby cooling the air before it passes through the evaporator and then entering the evaporator, while heating the air after it passes through the evaporator and then entering the second condenser.

[0022] The first heating chamber 1A1 is also provided with an electric heating element. With such a structure, when the hot air temperature of the system does not meet the requirement, the electric heating element works.

[0023] The power of the second condenser 32 is greater than that of the first condenser 31. Since the second heating chamber and the second heating chamber air outlet are located at the lower part, the hot air rises and enters the lower part of the drying room, thereby improving the drying effect.

[0024] The cooling circuit is provided with a circulating water pump.

[0025] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat pump dehumidification and drying system, characterized in that : including a main body, a compressor, a first condenser, a second condenser, a first fan, a second fan, an evaporator, a water spray device, a cooling heat exchanger, a cooling tower, a dust removal device, a double-channel heat exchanger and a drying room or a multi-layer assembly line; The main body includes a first heating chamber arranged on one side of the top, a dust removal chamber arranged on the other side, a return air channel, a second heating chamber arranged on one side of the lower part, an evaporation air inlet chamber and an evaporation air outlet chamber, and the air outlet end of the first heating chamber, the air inlet end of the return air channel and the air outlet end of the second heating chamber are arranged in sequence from top to bottom; The first heating chamber is connected with the return air channel, the first condenser is arranged on the air inlet of the first heating chamber, the first fan is arranged in the first heating chamber, and the first heating chamber is connected with the upper part of the drying room; the second condenser is arranged in the second heating chamber, the second fan is arranged in the second heating chamber and is connected with the lower part of the drying room; the cooling heat exchanger is arranged at the connection point between the return air channel and the dust removal chamber and forms a cooling circuit with the cooling tower; the evaporator is arranged on the partition between the evaporation air inlet chamber and the evaporation air outlet chamber, the dust removal device is arranged in the dust removal chamber, the dust removal chamber, one pipeline of the double-channel heat exchanger, the evaporation air inlet chamber, the evaporator, the evaporation air outlet chamber, another pipeline of the double-channel heat exchanger and the second heating chamber are connected in sequence; the water spraying device is arranged in the evaporation air inlet chamber and opposite to the evaporator.

2. A heat pump dehumidification and drying system according to claim 1, characterized in that: An electric heating element is also arranged in the first heating chamber.

3. A heat pump dehumidification and drying system according to claim 1, characterized in that: The power of the second condenser is greater than the power of the first condenser.

4. A heat pump dehumidification and drying system according to claim 1, characterized in that: The cooling circuit is provided with a circulating water pump.

5. A heat pump dehumidification and drying system according to claim 1, characterized in that: The air outlet end of the first heating chamber, the air inlet end of the return air channel and the air outlet end of the second heating chamber are arranged in sequence from top to bottom.

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