CN209926821U - High-temperature dehumidification system with auxiliary heat exchange assembly - Google Patents

Abstract

The utility model relates to a high temperature dehumidification system with auxiliary heat exchange assembly, including compressor, condensation heat exchanger, first heat exchanger, reservoir, secondary cooling heat exchanger, second heat exchanger, filter, expansion valve, evaporation heat exchanger, vapour and liquid separator, output tube, intermediate pipe, input tube, auxiliary heat exchange assembly, condensation heat exchanger, first heat exchanger, reservoir, secondary cooling heat exchanger locate on the output tube, filter, expansion valve, evaporation heat exchanger locate on the intermediate pipe, vapour and liquid separator locates on the input tube; the auxiliary heat exchange assembly comprises a liquid guide pipe, a control valve, a throttling device and an auxiliary heat exchanger, the control valve and the throttling device are arranged on the liquid guide pipe, the auxiliary heat exchanger is arranged on the air input end of the condensing heat exchanger or on the outer side of the air input end, and two ends of the liquid guide pipe are respectively connected to an output pipe at the output end of the condensing heat exchanger and an input pipe at the input end of the gas-liquid separator. The utility model has the advantages of simple structure, easy manufacture, good reliability, high safety, large application range and the like.

Description

High-temperature dehumidification system with auxiliary heat exchange assembly

Technical Field

The utility model relates to a drying equipment field, especially a high temperature dehumidification system.

Background

At present, a high-temperature dehumidification system is commonly used in a drying room, and most of the existing high-temperature dehumidification systems are composed of a compressor, a condensation heat exchanger, a liquid storage device, a filter, an expansion valve, an evaporation heat exchanger, a gas-liquid separator and the like. In order to achieve a good dehumidifying and drying effect, the temperature inside the drying room is maintained in a high temperature range (usually higher than 50 ℃), so that the high temperature dehumidifying system operates in a high temperature environment.

This tends to cause the superheat of the return air in the evaporating heat exchanger to be too high and the evaporating temperature to be too high, so that the refrigerant flowing back to the compressor has a higher temperature, and the temperature is likely to exceed the applicable range of the compressor, at this time, the compressor is likely to overheat and even to be shut down in a protection manner, thereby the drying efficiency is likely to be reduced.

Meanwhile, when the high-temperature dehumidification system works in a high-temperature environment, the temperature of air flow flowing into the condensation heat exchanger is also higher, so that the load of the condensation heat exchanger is easily increased, and the safety and the reliability of the high-temperature dehumidification system are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem and not enough, provide a high temperature dehumidification system with supplementary heat exchange assemblies, this high temperature dehumidification system has simple structure, easily makes, good reliability, security height, application scope advantage such as big.

The technical scheme of the utility model is realized like this:

a high-temperature dehumidification system with an auxiliary heat exchange assembly is characterized by comprising a compressor, a condensation heat exchanger, a first heat exchanger, a liquid storage device, a secondary cooling heat exchanger, a second heat exchanger, a filter, an expansion valve, an evaporation heat exchanger, a gas-liquid separator, an output pipe, an intermediate pipe, an input pipe and the auxiliary heat exchange assembly, wherein the first heat exchanger is provided with a first input port, a second input port, a first output port and a second output port, the first input port is communicated with the first output port, the second input port is communicated with the second output port, a refrigeration medium input pipe is connected to the second input port, and a refrigeration medium output pipe is connected to the second output port; the second heat exchanger is provided with a third input port, a fourth input port, a third output port and a fourth output port, the third input port is communicated with the third output port, and the fourth input port is communicated with the fourth output port; the input end of the output pipe is connected to the output end of the compressor, the output end of the output pipe is connected to the third input port of the second heat exchanger, the condensing heat exchanger, the first heat exchanger, the liquid storage device and the secondary cooling heat exchanger are sequentially connected in series to the output pipe along the flow guide direction of the output pipe, the first input port and the first output port of the first heat exchanger are respectively communicated with the output pipe, the input end of the intermediate pipe is connected to the third output port of the second heat exchanger, the output end of the intermediate pipe is connected to the fourth input port of the second heat exchanger, the filter, the expansion valve and the evaporation heat exchanger are sequentially connected in series to the intermediate pipe along the flow guide direction of the intermediate pipe, the input end of the input pipe is connected to the fourth output port of the second heat exchanger, and the output end of the input, the gas-liquid separator is connected in series with the input pipe; the auxiliary heat exchange assembly comprises a liquid guide pipe, a control valve, a throttling device and an auxiliary heat exchanger, the control valve, the throttling device and the auxiliary heat exchanger are sequentially connected onto the liquid guide pipe in series along the flow guide direction of the liquid guide pipe, the auxiliary heat exchanger is arranged on the air input end or on the outer side of the air input end of the condensing heat exchanger, the input end of the liquid guide pipe is connected onto an output pipe between the condensing heat exchanger and the first heat exchanger, and the output end of the liquid guide pipe is connected onto an input pipe between the fourth output port and the gas-liquid separator.

Furthermore, the high-temperature dehumidification system also comprises a temperature sensor and a control circuit module, wherein the temperature sensor is electrically connected with the control circuit module, and the control valve is an electromagnetic valve and is electrically connected with the control circuit module.

The utility model has the advantages that: the first heat exchanger and the secondary cooling heat exchanger are sequentially arranged on the output pipe on the rear side of the output end of the condensation heat exchanger, and the first heat exchanger is connected with the refrigerating medium input pipe and the refrigerating medium output pipe, so that the aim of cooling the refrigerant output by the condensation heat exchanger for multiple times through the first heat exchanger and the secondary cooling heat exchanger is fulfilled, and the refrigerant entering the second heat exchanger through the third input port has lower temperature; because the refrigerant output by the evaporation heat exchanger enters the second heat exchanger through the fourth input port, the refrigerant entering through the fourth input port can exchange heat with the refrigerant entering through the third input port, so that the refrigerant entering from the fourth input port can be cooled, and the refrigerant with lower temperature can be output from the fourth output port; and the refrigerant is discharged from the fourth output port and then flows back to the compressor again through the input pipe, so that the temperature of the refrigerant flowing back to the compressor is lower, the condition that the compressor is overheated or stops can be avoided, the drying efficiency of the high-temperature dehumidification system can be prevented from being influenced, the performance of the high-temperature dehumidification system is very excellent, the high-temperature dehumidification system can be suitable for the environment with higher temperature, and the application range of the high-temperature dehumidification system is wide. The input end of the liquid guide pipe is connected to the output pipe between the condensation heat exchanger and the first heat exchanger, so that the refrigerant output by the condensation heat exchanger can be shunted to the liquid guide pipe; by arranging an auxiliary heat exchanger connected in series to the liquid guide tube on or outside the air input end of the condensing heat exchanger; and then the refrigerant with relatively low temperature is introduced through the liquid guide pipe, so that the refrigerant with relatively low temperature flows to the auxiliary heat exchanger, and the air entering the condensing heat exchanger can be cooled to a certain extent, so that the temperature of the air entering the condensing heat exchanger is reduced, the load of the condensing heat exchanger is further reduced, the high-temperature dehumidification system can meet the use requirement at high temperature, and the safety and the reliability of the high-temperature dehumidification system are improved. By arranging the control valve on the liquid guide pipe, the liquid guide pipe can be selectively conducted according to needs, and the suitability of the high-temperature dehumidification system is improved. The high-temperature dehumidification system is very simple in overall structure, very easy to manufacture and very high in reliability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the first heat exchanger of the present invention.

Fig. 3 is a schematic structural diagram of the second heat exchanger of the present invention.

Detailed Description

As shown in FIG. 1, the high temperature dehumidification system with auxiliary heat exchange assembly of the present invention comprises a compressor 1, a condensing heat exchanger 2, a first heat exchanger 3, a liquid storage 4, a secondary cooling heat exchanger 5, a second heat exchanger 6, a filter 7, an expansion valve 8, an evaporating heat exchanger 9, a gas-liquid separator 10, an output pipe 20, an intermediate pipe 30, an input pipe 40, and an auxiliary heat exchange assembly 50, as shown in fig. 1 and fig. 2, the first heat exchanger 3 is provided with a first input port 31, a second input port 32, a first output port 33, and a second output port 34, and communicates the first input port 31 with the first output port 33, and also communicates the second input port 32 with the second output port 34, the second input port 32 is connected with a refrigerating medium input pipe 321, and the second output port 34 is connected with a refrigerating medium output pipe 341; as shown in fig. 1 and fig. 3, a third input port 61, a fourth input port 62, a third output port 63, and a fourth output port 64 are provided on the second heat exchanger 6, and the third input port 61 is communicated with the third output port 63, and the fourth input port 62 is communicated with the fourth output port 64; as shown in fig. 1 to 3, an input end of the output pipe 20 is connected to an output end of the compressor 1, an output end of the output pipe 20 is connected to a third input port 61 of the second heat exchanger 6, the condensing heat exchanger 2, the first heat exchanger 3, the reservoir 4, and the secondary cooling heat exchanger 5 are sequentially connected in series to the output pipe 20 along a flow guiding direction of the output pipe 20, and the first input port 31 and the first output port 33 of the first heat exchanger 3 are respectively communicated with the output pipe 20; as shown in fig. 1 and 3, an input end of the intermediate pipe 30 is connected to a third output port 63 of the second heat exchanger 6, an output end of the intermediate pipe 30 is connected to a fourth input port 62 of the second heat exchanger 6, and the filter 7, the expansion valve 8 and the evaporation heat exchanger 9 are connected in series to the intermediate pipe 30 in sequence along a flow guiding direction of the intermediate pipe 30; as shown in fig. 1 and fig. 3, an input end of the input pipe 40 is connected to the fourth output port 64 of the second heat exchanger 6, an output end of the input pipe 40 is connected to an input end of the compressor 1, and the gas-liquid separator 10 is connected in series to the input pipe 40; as shown in fig. 1, the auxiliary heat exchange assembly 50 includes a liquid guide pipe 51, a control valve 52, a throttling device 53, and an auxiliary heat exchanger 54, the control valve 52, the throttling device 53, and the auxiliary heat exchanger 54 are sequentially connected in series to the liquid guide pipe 51 along the flow direction of the liquid guide pipe 51, the auxiliary heat exchanger 54 is disposed on the air input end of the condensing heat exchanger 2 or outside the air input end, the input end of the liquid guide pipe 51 is connected to the output pipe 20 between the condensing heat exchanger 2 and the first heat exchanger 3, and the output end of the liquid guide pipe 51 is connected to the input pipe 40 between the fourth output port 64 and the gas-liquid separator 10. The first heat exchanger 3 and the secondary cooling heat exchanger 5 are sequentially arranged on the output pipe 20 on the rear side of the output end of the condensing heat exchanger 2, and the first heat exchanger 3 is connected with the refrigerating medium input pipe 321 and the refrigerating medium output pipe 341, so that the refrigerant output by the condensing heat exchanger 2 can be cooled for multiple times through the first heat exchanger 3 and the secondary cooling heat exchanger 5, and the refrigerant entering the second heat exchanger 6 through the third input port 61 has lower temperature; because the refrigerant output by the evaporating heat exchanger 9 enters the second heat exchanger 6 through the fourth input port 62, the refrigerant entering through the fourth input port 62 can exchange heat with the refrigerant entering through the third input port 61, so that the refrigerant entering from the fourth input port 62 can be cooled, and the refrigerant with lower temperature can be output from the fourth output port 64; since the refrigerant is discharged from the fourth output port 64 and then flows back to the compressor 1 through the input pipe 40, the temperature of the refrigerant flowing back to the compressor 1 is low, which can prevent the compressor 1 from overheating or stopping, and thus can prevent the drying efficiency of the high-temperature dehumidification system from being affected. By connecting the input end of the liquid guide pipe 51 to the output pipe 20 between the condensing heat exchanger 2 and the first heat exchanger 3, the refrigerant output by the condensing heat exchanger 2 can be branched into the liquid guide pipe 51; by arranging the auxiliary heat exchanger 54 connected in series to the liquid guide tube 51 on or outside the air input of the condensing heat exchanger 2; then, the refrigerant with relatively low temperature is introduced through the liquid guide pipe 51, so that the refrigerant with relatively low temperature flows to the auxiliary heat exchanger 54, and thus, a certain cooling effect can be exerted on the air entering the condensing heat exchanger 2, the temperature of the air entering the condensing heat exchanger 2 is reduced, the load of the condensing heat exchanger 2 is further reduced, the high-temperature dehumidification system can meet the use requirement at high temperature, and the safety and the reliability of the high-temperature dehumidification system are improved. By providing the control valve 52 on the liquid guide tube 51, the liquid guide tube 51 can be selectively conducted according to the requirement, which helps to improve the applicability of the high-temperature dehumidification system. The high-temperature dehumidification system is very simple in overall structure, very easy to manufacture and very high in reliability.

The first heat exchanger 3 is a plate heat exchanger or a double pipe heat exchanger.

The second heat exchanger 6 is a plate heat exchanger or a double pipe heat exchanger.

The secondary cooling heat exchanger 5 is a plate heat exchanger or a double-pipe heat exchanger.

The throttle device 53 may be an expansion throttle valve.

As shown in fig. 1, the high temperature dehumidification system further includes a temperature sensor 60 and a control circuit module 70, and the temperature sensor 60 is electrically connected to the control circuit module 70, and the control valve 52 is a solenoid valve, and the control valve 52 is electrically connected to the control circuit module 70. Through the arrangement of the temperature sensor 60 and the control circuit module 70, in addition to the control valve 52 being an electromagnetic valve, and the control valve 52 and the temperature sensor 60 being electrically connected to the control circuit module 70, the temperature sensor 60 can monitor the ambient temperature and transmit the temperature information to the control circuit module 70; by setting the control circuit module 70, the highest reaction temperature can be set on the control circuit module 70; when the temperature fed back by the temperature sensor 60 exceeds the maximum reaction temperature, the control valve 52 can be opened by the control circuit module 70, so that the function of automatically conducting the liquid guide pipe 51 can be realized, which is helpful to improve the convenience of the high-temperature dehumidification system. When the temperature fed back to the control circuit module 70 by the temperature sensor 60 is lower than the set reaction temperature, the control valve 52 is closed by the control circuit module 70, so that the catheter 51 can be automatically closed, thus completely realizing automatic control and further improving the convenience of use. The reaction temperature may be set to 60 ℃ to 80 ℃ or other temperatures.

The temperature sensor 60 may be provided on the input pipe 40 to monitor the temperature of the refrigerant in the input pipe 40 through the temperature sensor 60 to control the operation of the control valve 52 according to the temperature of the refrigerant flowing back to the compressor 1.

The control circuit module 70 may be a single chip or other existing electrical components with coordinated control.

Claims (2)

1. The utility model provides a high temperature dehumidification system with supplementary heat exchange assemblies which characterized in that: the heat exchanger comprises a compressor (1), a condensing heat exchanger (2), a first heat exchanger (3), a liquid storage device (4), a secondary cooling heat exchanger (5), a second heat exchanger (6), a filter (7), an expansion valve (8), an evaporating heat exchanger (9), a gas-liquid separator (10), an output pipe (20), a middle pipe (30), an input pipe (40) and an auxiliary heat exchange assembly (50), wherein the heat exchanger comprises a condenser (2), a first heat exchanger (3), a liquid storage device (4)

A first input port (31), a second input port (32), a first output port (33) and a second output port (34) are arranged on the first heat exchanger (3), the first input port (31) is communicated with the first output port (33), the second input port (32) is communicated with the second output port (34), the second input port (32) is connected with a refrigerating medium input pipe (321), and the second output port (34) is connected with a refrigerating medium output pipe (341);

a third input port (61), a fourth input port (62), a third output port (63) and a fourth output port (64) are arranged on the second heat exchanger (6), the third input port (61) is communicated with the third output port (63), and the fourth input port (62) is communicated with the fourth output port (64);

the input end of the output pipe (20) is connected to the output end of the compressor (1), the output end of the output pipe (20) is connected to the third input port (61) of the second heat exchanger (6), the condensation heat exchanger (2), the first heat exchanger (3), the liquid reservoir (4) and the secondary cooling heat exchanger (5) are sequentially connected to the output pipe (20) in series along the flow guide direction of the output pipe (20), and the first input port (31) and the first output port (33) of the first heat exchanger (3) are respectively communicated with the output pipe (20);

the input end of the intermediate pipe (30) is connected to a third output port (63) of the second heat exchanger (6), the output end of the intermediate pipe (30) is connected to a fourth input port (62) of the second heat exchanger (6), and the filter (7), the expansion valve (8) and the evaporation heat exchanger (9) are sequentially connected to the intermediate pipe (30) in series along the flow guide direction of the intermediate pipe (30);

the input end of the input pipe (40) is connected to a fourth output port (64) of the second heat exchanger (6), the output end of the input pipe (40) is connected to the input end of the compressor (1), and the gas-liquid separator (10) is connected to the input pipe (40) in series;

the auxiliary heat exchange assembly (50) comprises a liquid guide pipe (51), a control valve (52), a throttling device (53) and an auxiliary heat exchanger (54), the control valve (52), the throttling device (53) and the auxiliary heat exchanger (54) are sequentially connected onto the liquid guide pipe (51) in series along the flow guide direction of the liquid guide pipe (51), the auxiliary heat exchanger (54) is arranged on the air input end or on the outer side of the air input end of the condensation heat exchanger (2), the input end of the liquid guide pipe (51) is connected onto an output pipe (20) between the condensation heat exchanger (2) and the first heat exchanger (3), and the output end of the liquid guide pipe (51) is connected onto an input pipe (40) between a fourth output port (64) and the gas-liquid separator (10).

2. The high temperature dehumidification system with auxiliary heat exchange assembly as recited in claim 1, wherein: the temperature control device also comprises a temperature sensor (60) and a control circuit module (70), wherein the temperature sensor (60) is electrically connected with the control circuit module (70), the control valve (52) is an electromagnetic valve, and the control valve (52) is electrically connected with the control circuit module (70).

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