Energy-saving refrigerated dryer

Abstract

The utility model discloses an energy-saving refrigerated dryer which comprises a shell, heat dissipation fins are installed at the bottom of an inner cavity of the shell, a condensation pipe and a coiled pipe are installed on the heat dissipation fins, the coiled pipe is transversely arranged, an automatic drainer is installed at a water outlet in the bottom of the coiled pipe, and a gas-water separator is installed on the upper portion of the inner cavity of the shell. A water outlet in the bottom of the gas-water separator is positioned above the coiled pipe and is connected with a water inlet in the top of the coiled pipe through a pipeline; compared with a traditional refrigeration type drying machine, the energy-saving refrigeration type drying machine has the advantages that the coiled pipe is arranged between the water outlet of the gas-water separator and the automatic water drainer and is mounted on the heat dissipation fins, when the energy-saving refrigeration type drying machine works to drain condensate water, the condensate water firstly passes through the coiled pipe and simultaneously exchanges heat with the heat dissipation fins, so that the heat dissipation effect is improved; and the heat dissipation fins can be effectively helped to rapidly dissipate heat by utilizing the low temperature of the condensate water, so that the efficiency of cooling the refrigerant is improved under the condition that the power of the heat dissipation fan is not increased.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze dryers, and particularly relates to an energy-saving freeze dryer. Background Art

[0002] A freeze dryer is a machine that, according to the principle of freeze dehumidification, forces compressed air to pass through an evaporator for heat exchange to cool down, so that the gaseous water and oil in the compressed air are cooled isobarically and condensed into liquid water and oil, and are discharged outside the machine through an automatic drainer, thereby obtaining dry and clean compressed air. Traditional freeze dryers use heat dissipation fins and a cooling fan to cool the refrigerant in the condenser tube. In order to improve the efficiency of cooling the refrigerant, a cooling fan with a relatively high power is usually used to dissipate heat from the heat dissipation fins, so the energy consumption is relatively large. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an energy-saving freeze dryer for the deficiencies of the prior art, so as to solve the problems raised in the background art.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An energy-saving freeze dryer includes a housing. A heat dissipation fin is installed at the bottom of the inner cavity of the housing. A condenser tube and a serpentine tube are installed on the heat dissipation fin. The serpentine tube is arranged horizontally. An automatic drainer is installed at the bottom water outlet of the serpentine tube. An air-water separator is installed in the upper part of the inner cavity of the housing. The drain port at the bottom of the air-water separator is located above the serpentine tube, and the drain port is connected to the top water inlet of the serpentine tube through a pipeline.

[0006] As a preferred scheme of the energy-saving freeze dryer, a pre-cooler and an evaporator are further installed in the upper part of the inner cavity of the housing. The wet air inlet and the dry air outlet of the pre-cooler are both arranged outside the housing. The wet air outlet of the pre-cooler is connected to the evaporator air inlet of the evaporator through a pipeline. The evaporator air outlet of the evaporator is connected to the separator air inlet of the air-water separator through a pipeline. The separator air outlet of the air-water separator is connected to the dry air inlet of the pre-cooler through a pipeline.

[0007] As a preferred scheme of the energy-saving freeze dryer, a liquid storage tank and a compressor are further installed at the bottom of the inner cavity of the housing. The liquid outlet end of the liquid storage tank is connected to the liquid inlet end of the compressor through a pipeline. The liquid outlet end pipeline of the compressor is connected to the liquid inlet end of the condenser tube. The liquid outlet end of the condenser tube is connected to the refrigerant inlet of the evaporator through a pipeline. The refrigerant outlet of the evaporator is connected to the liquid inlet end of the liquid storage tank through a pipeline.

[0008] As a preferred scheme of the energy-saving freeze dryer, a ventilation opening is provided on the left side wall of the housing, and a cooling fan is installed on the right side wall of the housing. The cooling fan is facing the heat dissipation fin.

[0009] As a preferred embodiment of the energy-saving refrigerated dryer, the serpentine tube is made of copper.

[0010] Advantages of the present utility model:

[0011] In the energy-saving refrigerated dryer of the present utility model, compared with the traditional refrigerated dryer, a serpentine tube is provided between the drain port of the gas-water separator and the automatic drainer, and the serpentine tube is installed on the heat dissipation fins. When the device drains condensed water during operation, the condensed water will first pass through the serpentine tube and at the same time exchange heat with the heat dissipation fins. The low temperature of the condensed water can effectively help the heat dissipation fins dissipate heat quickly, thereby improving the efficiency of cooling the refrigerant without increasing the power of the cooling fan. Description of the drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic diagram of the internal structure of the energy-saving refrigerated dryer described in the present utility model.

[0014] Figure 2 It is a schematic diagram of the structures of the condenser tube, the serpentine tube and the heat dissipation fins described in the present utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the serpentine tube described in the present utility model.

[0016] Figure 4 It is a schematic diagram of the connection of the pre-cooler, the evaporator and the gas-water separator described in the present utility model.

[0017] Figure 5 It is a schematic diagram of the external structure of the energy-saving refrigerated dryer described in the present utility model.

[0018] In the figure:

[0019] 1. Housing; 2. Liquid reservoir; 3. Compressor; 4. Heat dissipation fins; 5. Condensing pipe; 6. Serpentine pipe; 7. Automatic drain; 8. Pre-cooler; 8-1. Wet air inlet; 8-2. Wet air outlet; 8-3. Dry air inlet; 8-4. Dry air outlet; 9. Evaporator; 9-1. Evaporator air inlet; 9-2. Evaporator air outlet; 9-3. Refrigerant inlet; 9-4. Refrigerant outlet; 10. Air-water separator; 10-1. Separator air inlet; 10-2. Separator air outlet; 10-3. Drain port; 11. Vent; 12. Cooling fan. Detailed implementation manners

[0020] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0021] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0022] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In the description of the present utility model, unless otherwise clearly specified and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Such as Figures 1 to 5As shown in the figure, the utility model provides an energy-saving refrigerated dryer, which includes a housing 1. At the bottom of the inner cavity of the housing 1, heat dissipation fins 4 are installed. A condensing pipe 5 and a serpentine pipe 6 are installed on the heat dissipation fins 4. The function of the heat dissipation fins 4 is to increase the heat dissipation area of the condensing pipe 5 and help the refrigerant flowing in the condensing pipe 5 to dissipate heat and cool down. The serpentine pipe 6 is made of copper and is arranged horizontally. An automatic drainer 7 is installed at the bottom water outlet of the serpentine pipe 6. An air-water separator 10 is installed in the upper part of the inner cavity of the housing 1. The drain port 10-3 at the bottom of the air-water separator 10 is located above the serpentine pipe 6, and the drain port 10-3 is connected to the top water inlet of the serpentine pipe 6 through a pipeline. When the dryer is working, the condensed water discharged from the drain port 10-3 of the air-water separator 10 will flow downward through the serpentine pipe 6 to the automatic drainer 7. When the condensed water passes through the serpentine pipe 6, it can exchange heat with the heat dissipation fins 4, so as to use the low temperature of the condensed water to help the heat dissipation fins 4 dissipate heat. A ventilation opening 11 is provided on the left side wall of the housing 1, and a heat dissipation fan 12 is installed on the right side wall of the housing 1. The heat dissipation fan 12 faces the heat dissipation fins 4, and the heat dissipation fan 12 can blow air to the heat dissipation fins 4, so as to perform air-cooled heat dissipation on the heat dissipation fins 4.

[0025] Specifically, a pre-cooler 8 and an evaporator 9 are also installed in the upper part of the inner cavity of the housing 1. The wet air inlet 8-1 and the dry air outlet 8-4 of the pre-cooler 8 are both arranged outside the housing 1. The wet air outlet 8-2 of the pre-cooler 8 is connected to the evaporator air inlet 9-1 of the evaporator 9 through a pipeline. The evaporator air outlet 9-2 of the evaporator 9 is connected to the separator air inlet 10-1 of the air-water separator 10 through a pipeline. The separator air outlet 10-2 of the air-water separator 10 is connected to the dry air inlet 8-3 of the pre-cooler 8 through a pipeline. The function of the evaporator 9 is to take away the heat of the wet air through the refrigerant, so that the moisture in the wet air reaches the saturation temperature and quickly condenses, and then aggregates into condensed water droplets. The function of the air-water separator 10 is to separate the condensed water in the air. The function of the pre-cooler 8 is to pre-cool the wet air just entering the pre-cooler 8 with the low-temperature dry air discharged from the air-water separator 10.

[0026] More specifically, a liquid storage tank 2 and a compressor 3 are also installed at the bottom of the inner cavity of the housing 1. The liquid outlet end of the liquid storage tank 2 is connected to the liquid inlet end of the compressor 3 through a pipeline. The liquid outlet end pipeline of the compressor 3 is connected to the liquid inlet end of the condensing pipe 5. The liquid outlet end of the condensing pipe 5 is connected to the refrigerant inlet 9-3 of the evaporator 9 through a pipeline. The refrigerant outlet 9-4 of the evaporator 9 is connected to the liquid inlet end of the liquid storage tank 2 through a pipeline. The liquid storage tank 2 is used to store the refrigerant, the compressor 3 is used to lift the low-pressure refrigerant to a high-pressure refrigerant, and the heat dissipation fins 4, the condensing pipe 5 and the heat dissipation fan 12 cooperate to dissipate heat and cool down the refrigerant.

[0027] The working principle and usage process of the utility model:

[0028] When the energy-saving freeze dryer is in use, the condensed water discharged from the drain port 10-3 of the gas-water separator 10 flows downward through the serpentine pipe 6 to the automatic drain 7. When the condensed water passes through the serpentine pipe 6, it exchanges heat with the heat dissipation fins 4. The low temperature of the condensed water can effectively help the heat dissipation fins 4 dissipate heat quickly, thereby improving the efficiency of the heat dissipation fins 4 in cooling the refrigerant without increasing the power of the cooling fan 12.

[0029] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the technical principles applied. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the description and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. An energy-saving refrigerated dryer, characterized in that, It includes a housing (1). At the bottom of the inner cavity of the housing (1), heat dissipation fins (4) are installed. A condensation pipe (5) and a serpentine pipe (6) are installed on the heat dissipation fins (4). The serpentine pipe (6) is arranged horizontally. An automatic drainer (7) is installed at the bottom water outlet of the serpentine pipe (6). An air-water separator (10) is installed in the upper part of the inner cavity of the housing (1). The drain port (10-3) at the bottom of the air-water separator (10) is located above the serpentine pipe (6), and the drain port (10-3) is connected to the top water inlet of the serpentine pipe (6) through a pipe.

2. The energy-saving freeze dryer according to claim 1, wherein A pre-cooler (8) and an evaporator (9) are also installed in the upper part of the inner cavity of the housing (1). The wet air inlet (8-1) and the dry air outlet (8-4) of the pre-cooler (8) are both arranged outside the housing (1). The wet air outlet (8-2) of the pre-cooler (8) is connected to the evaporator air inlet (9-1) of the evaporator (9) through a pipe. The evaporator air outlet (9-2) of the evaporator (9) is connected to the separator air inlet (10-1) of the air-water separator (10) through a pipe. The separator air outlet (10-2) of the air-water separator (10) is connected to the dry air inlet (8-3) of the pre-cooler (8) through a pipe.

3. The energy-saving freeze dryer according to claim 2, wherein A liquid storage tank (2) and a compressor (3) are also installed at the bottom of the inner cavity of the housing (1). The liquid outlet end of the liquid storage tank (2) is connected to the liquid inlet end of the compressor (3) through a pipe. The liquid outlet end of the compressor (3) is connected to the liquid inlet end of the condensation pipe (5) through a pipe. The liquid outlet end of the condensation pipe (5) is connected to the refrigerant inlet (9-3) of the evaporator (9) through a pipe. The refrigerant outlet (9-4) of the evaporator (9) is connected to the liquid inlet end of the liquid storage tank (2) through a pipe.

4. The energy-saving freeze dryer according to claim 1, characterized in that, A ventilation opening (11) is provided on the left side wall of the housing (1). A heat dissipation fan (12) is installed on the right side wall of the housing (1), and the heat dissipation fan (12) faces the heat dissipation fins (4).

5. The energy-saving refrigerated dryer according to claim 1, wherein The serpentine pipe (6) is a copper serpentine pipe.

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