Freezing type drying machine with cold air circulation structure

Abstract

The utility model provides a refrigerated dryer with a cold air circulation structure, which belongs to the field of dryers and comprises a shell, an air inlet pipeline is mounted in the shell, an exhaust fan is mounted in the air inlet pipeline, a condenser is mounted in the shell in a bolted manner and communicated with the air inlet pipeline, and the air inlet pipeline is communicated with the exhaust fan. A water outlet pipe is installed on the condenser, an evaporator is installed in the shell, an expansion valve is installed in the shell and communicated with the evaporator and the condenser through pipelines, a compressor is installed in the shell and communicated with the evaporator and the condenser through pipelines, and an air outlet is formed in the top of the shell. When the air conditioner is used, the exhaust fan is started to suck external air into the condenser through the air inlet pipeline, water vapor in the air is condensed into water and discharged through the water outlet pipe, then dried cold air returns indoors through the air outlet, cold air circulation is conducted all the time, and the indoor space is kept in a dry state all the time.

Description

Technical Field

[0001] The utility model relates to the field of dryers, and in particular to a refrigeration dryer with a cold air circulation structure. Background Art

[0002] The refrigerated dryer uses physical principles to freeze the moisture in the compressed air to below the dew point, causing it to precipitate from the air. The refrigerated dryer has a built-in drying unit, which is mainly composed of an evaporator assembly, a refrigeration compressor and a heat dissipation copper tube.

[0003] A search revealed that among the prior art, Chinese patent publication number CN218590149U discloses "a refrigerated dryer that automatically removes dust and foreign matter from a filter screen to ensure normal and efficient heat dissipation of the refrigerated dryer, eliminating the need for regular manual cleaning and significantly reducing the waste of resources caused by removing dust and foreign matter from the filter screen." However, the following defects still exist:

[0004] (1) In actual use, the cold air does not circulate, resulting in the inability to ensure uniform temperature on the surface of the material inside the drying chamber;

[0005] (2) In actual use, the installation method is relatively fixed, inconvenient to move and use, and has low flexibility.

[0006] Therefore, we have made improvements to this and proposed a refrigerated dryer with a cold air circulation structure. Utility Model Content

[0007] The purpose of the utility model is to address the problems that the existing cold air does not circulate, resulting in the inability to ensure uniform temperature on the surface of the material inside the drying chamber, the installation method is relatively fixed, it is inconvenient to move and use, and the flexibility is low.

[0008] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0009] A refrigerated dryer with a cold air circulation structure is used to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] It includes a shell, an air inlet duct is installed inside the shell, an exhaust fan is installed inside the air inlet duct, a condenser is bolted and installed inside the shell and is connected to the air inlet duct, a water outlet pipe is installed on the condenser, an evaporator is installed inside the shell, an expansion valve is installed inside the shell and is connected to the evaporator and condenser pipes, a compressor is installed inside the shell and is connected to the evaporator and condenser pipes, and an air outlet is provided on the top of the shell.

[0012] As a preferred technical solution of the present invention, an air purifier is installed on the air inlet duct, and the air purifier is bolted to the inside of the shell.

[0013] As a preferred technical solution of the present invention, an air outlet fan is installed inside the air outlet, and a dustproof net is installed on the top of the air outlet fan.

[0014] As a preferred technical solution of the present invention, a heat dissipation chamber is provided on one side of the shell, and a heat dissipation fan is installed inside the heat dissipation chamber.

[0015] As a preferred technical solution of the present invention, a protective grid is bolted to one side of the heat dissipation bin.

[0016] As a preferred technical solution of the present invention, universal wheels are provided at the bottom of the housing, and there are four universal wheels which are evenly distributed at the bottom of the housing.

[0017] As a preferred technical solution of the present invention, a plurality of stabilizing plates are fixedly connected to the bottom of the shell, threaded holes are provided on the stabilizing plates, and stabilizing columns are connected to the internal threads of the threaded holes, and the stabilizing columns are vertical.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the solution of the present utility model:

[0020] The evaporator is connected to the compressor, and the exhaust fan is used to draw the outside air into the condenser through the air inlet. The compressor compresses the gaseous refrigerant (high temperature and high pressure) and sends it to the condenser. The outlet of the condenser is connected to the inlet of the expansion valve. In the condenser, the refrigerant is cooled and condensed into liquid (high pressure liquid) and flows to the expansion valve. The outlet of the expansion valve is connected to the inlet of the evaporator. The expansion valve reduces the pressure of the high pressure liquid refrigerant, causing its temperature to drop rapidly to form a low pressure liquid, which flows into the evaporator. The outlet of the evaporator is connected to the suction port of the compressor. In the evaporator, the low pressure liquid refrigerant absorbs heat and evaporates into gas (low temperature and low pressure), which is then returned to the compressor, thus completing the cooling. The exhaust fan is then started to draw the outside air into the condenser through the air inlet duct, so that the water vapor in the air condenses into water and is discharged through the water outlet pipe. The dried cold air is then returned to the room through the air outlet, thus continuing the cold air cycle and keeping the room dry.

[0021] 2. The universal wheels make it easy to move the housing when in use, and the housing can be installed in any position for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a refrigerated dryer with a cold air circulation structure provided by the present invention;

[0023] Figure 2 This is a right side view of the refrigerated dryer with a cold air circulation structure provided by the present invention;

[0024] Figure 3 The utility model provides a refrigerated dryer with a cold air circulation structure Figure 2 Schematic diagram of the three-dimensional cross-sectional structure at AA in the middle;

[0025] Figure 4 The utility model provides a refrigerated dryer with a cold air circulation structure Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the universal wheel structure of the refrigeration dryer with a cold air circulation structure provided by the utility model.

[0027] Indicated in the figure:

[0028] 18. Shell; 1. Air inlet duct; 2. Exhaust fan; 3. Condenser; 4. Water outlet pipe; 5. Evaporator; 6. Expansion valve; 7. Compressor; 8. Air outlet; 9. Air purifier; 10. Air outlet fan; 11. Dust screen; 12. Heat dissipation chamber; 13. Cooling fan; 14. Protective grid; 15. Universal wheel; 16. Stabilizing plate; 17. Stabilizing column; 19. Threaded hole. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0030] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] like Figure 3 As shown, this embodiment proposes a refrigerated dryer with a cold air circulation structure, including a shell 18, an air inlet duct 1 is installed inside the shell 18, an exhaust fan 2 is installed inside the air inlet duct 1, a condenser 3 is bolted and installed inside the shell 18 and is connected to the air inlet duct 1, a water outlet pipe 4 is installed on the condenser 3, an evaporator 5 is installed inside the shell 18, an expansion valve 6 is installed inside the shell 18 and is connected to the evaporator 5 and the condenser 3 pipes, a compressor 7 is installed inside the shell 18 and is connected to the evaporator 5 and the condenser 3 pipes, an air outlet 8 is provided on the top of the shell 18, when in use, the exhaust port of the compressor 7 is connected to the inlet of the condenser 3, the compressor 7 compresses the gaseous refrigerant (high temperature and high pressure) and sends it into the condenser 3, and the outlet of the condenser 3 is connected to the expansion valve 6. At the inlet of valve 6, in the condenser 3, the refrigerant is cooled and condensed into liquid (high-pressure liquid) and flows to the expansion valve 6. The outlet of the expansion valve 6 is connected to the inlet of the evaporator 5. The expansion valve 6 reduces the pressure of the high-pressure liquid refrigerant, causing its temperature to drop rapidly to form a low-pressure liquid, which flows into the evaporator 5. The outlet of the evaporator 5 is connected to the air intake of the compressor 7. In the evaporator 5, the low-pressure liquid refrigerant absorbs heat and evaporates into gas (low temperature and low pressure), and then returns to the compressor 7, thereby completing the refrigeration. The exhaust fan 2 is then started to draw the external air into the condenser 3 through the air inlet pipe 1, so that the water vapor in the air condenses into water and is discharged through the water outlet pipe 4. The dried cold air then returns to the room through the air outlet 8, thereby continuously circulating the cold air to keep the room dry.

[0034] like Figure 3 As shown, an air purifier 9 is installed on the air inlet duct 1, and the air purifier 9 is bolted to the inside of the shell 18. When in use, the air purifier 9 can filter and purify the circulating air.

[0035] like Figure 3 As shown, an air outlet fan 10 is installed inside the air outlet 8, and a dustproof net 11 is installed on the top of the air outlet fan 10. When in use, the air outlet fan 10 is started to quickly discharge the dry cold air in the air outlet 8 to the outside of the air outlet 8, which can increase the wind speed of the cold air.

[0036] like Figure 4 As shown, a heat dissipation chamber 12 is provided on one side of the shell 18, and a heat dissipation fan 13 is installed inside the heat dissipation chamber 12. When in use, the heat dissipation fan 13 can exhaust air to the outside of the heat dissipation chamber 12, and can quickly remove the heat generated by the condenser 3 from the heat dissipation chamber 12, thereby improving the heat dissipation effect of the condenser 3.

[0037] like Figure 4As shown, a protective grid 14 is bolted to one side of the heat dissipation chamber 12 , and the protective grid 14 can protect the heat dissipation fan 13 when in use.

[0038] like Figure 5 As shown, universal wheels 15 are provided at the bottom of the housing 18 . There are four universal wheels 15 , which are evenly distributed at the bottom of the housing 18 . The universal wheels 15 can facilitate the movement of the housing 18 when in use.

[0039] like Figure 5 As shown, a plurality of stabilizing plates 16 are fixedly connected to the bottom of the shell 18, and threaded holes 19 are provided on the stabilizing plates 16. The internal threads of the threaded holes 19 are connected to stabilizing columns 17, and the stabilizing columns 17 are vertical. When in use, the stabilizing columns 17 are rotated to drive the stabilizing columns 17 to move downward inside the threaded holes 19 and support the ground, so that the stability of the shell 18 can be improved.

[0040] Specifically, when the refrigerated dryer with a cold air circulation structure is in use: the exhaust port of the compressor 7 is connected to the inlet of the condenser 3, the compressor 7 compresses the gaseous refrigerant (high temperature and high pressure) and sends it to the condenser 3, the outlet of the condenser 3 is connected to the inlet of the expansion valve 6, in the condenser 3, the refrigerant is cooled and condensed into a liquid (high-pressure liquid) and flows to the expansion valve 6, the outlet of the expansion valve 6 is connected to the inlet of the evaporator 5, the expansion valve 6 reduces the pressure of the high-pressure liquid refrigerant, causing its temperature to drop rapidly to form a low-pressure liquid, which flows into the evaporator 5, the outlet of the evaporator 5 is connected to the intake port of the compressor 7, in the evaporator 5, the low-pressure liquid refrigerant absorbs heat and evaporates into a gas (low temperature and low pressure), and then returns to the compressor 7, thereby completing the refrigeration, and then the exhaust fan 2 is started to draw the outside air into the condenser 3 through the air inlet duct 1, so that the water vapor in the air condenses into water and is discharged through the water outlet pipe 4, and then the dried cold air returns to the room through the air outlet 8, thereby continuously performing the cold air circulation, so that the room is always kept dry.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A refrigerated dryer with a cold air circulation structure, comprising a housing (18), characterized in that: An air inlet duct (1) is installed inside the shell (18), an exhaust fan (2) is installed inside the air inlet duct (1), a condenser (3) is bolted and installed inside the shell (18) and is connected to the air inlet duct (1), a water outlet pipe (4) is installed on the condenser (3), an evaporator (5) is installed inside the shell (18), an expansion valve (6) is installed inside the shell (18) and is connected to the evaporator (5) and the condenser (3) pipelines, a compressor (7) is installed inside the shell (18) and is connected to the evaporator (5) and the condenser (3) pipelines, and an air outlet (8) is provided at the top of the shell (18).

2. The refrigerated dryer with a cold air circulation structure according to claim 1, characterized in that: An air purifier (9) is installed on the air inlet duct (1), and the air purifier (9) is bolted to the inside of the housing (18).

3. The refrigerated dryer with a cold air circulation structure according to claim 1, characterized in that: An air outlet fan (10) is installed inside the air outlet (8), and a dustproof net (11) is installed on the top of the air outlet fan (10).

4. The refrigerated dryer with a cold air circulation structure according to claim 1, characterized in that: A heat dissipation chamber (12) is provided on one side of the housing (18), and a heat dissipation fan (13) is installed inside the heat dissipation chamber (12).

5. The refrigerated dryer with a cold air circulation structure according to claim 4, characterized in that: A protective grid (14) is bolted and installed on one side of the heat dissipation bin (12).

6. The refrigerated dryer with a cold air circulation structure according to claim 1, characterized in that: Universal wheels (15) are provided at the bottom of the housing (18), and the number of the universal wheels (15) is four and they are evenly distributed at the bottom of the housing (18).

7. The refrigerated dryer with a cold air circulation structure according to claim 1, characterized in that: A plurality of stabilizing plates (16) are fixedly connected to the bottom of the shell (18), threaded holes (19) are provided on the stabilizing plates (16), and the internal threads of the threaded holes (19) are connected to stabilizing columns (17), and the stabilizing columns (17) are vertical.

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