Heat exchange device of vacuum clothes dryer

Abstract

The utility model discloses a heat exchange device of a vacuum clothes dryer. The heat exchange device comprises a shell, wherein the shell comprises an outer shell, an inner shell and a sealing cover body; the heat exchange cavity wraps the outer side of the inner shell; the vacuumizing assembly is arranged on the outer shell and communicates with the inner shell and the heat exchange cavity. The pressure discharging assembly is arranged on the outer shell and communicates with the bottom of the heat exchange cavity. The heat exchange plates are uniformly distributed on the side wall of the inner shell; the air inlet assembly is arranged in the outer shell, stretches into the heat exchange cavity and communicates with the inner shell. According to the vacuum clothes dryer, the vacuum pumping assembly enables water vapor with heat to enter the heat exchange cavity, the water vapor with the heat exchanges heat in the inner shell through the heat exchange plate, the situation that a large amount of heat is lost when the vacuum pumping device works is avoided, the heat exchange efficiency is improved, and the service life of the vacuum clothes dryer is prolonged. The clothes drying effect of the clothes dryer is guaranteed, heat exchange is conducted through cooperation of water vapor with heat in the heat exchange cavity and the spiral heating pipe, and energy consumption of the clothes dryer is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum clothes dryers, and specifically to a heat exchange device for a vacuum clothes dryer. Background Art

[0002] Household vacuum clothes dryers are relatively common abroad. In China, especially in the humid southern regions, their usage has become as popular as other household appliances and industrial equipment. During the clothes drying process of a vacuum clothes dryer, it is mainly achieved through two processes: air extraction and heating.

[0003] Currently, when an existing vacuum clothes dryer is working, the water in the clothes is vaporized for dehydration by increasing the temperature inside the dryer. However, when the vacuum pumping device is working, a large amount of heat is dissipated, which affects the drying efficiency of the clothes dryer and also results in a large energy consumption of the clothes dryer. Therefore, a heat exchange device for a vacuum clothes dryer is provided. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a heat exchange device for a vacuum clothes dryer to solve the problems that when the vacuum pumping device is working, a large amount of heat is dissipated, which affects the drying efficiency of the clothes dryer and also results in a large energy consumption of the clothes dryer.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat exchange device for a vacuum clothes dryer, comprising:

[0006] A housing, including an outer housing, an inner housing, and a sealing cover. The sealing cover is arranged on the outer housing to seal the inner housing;

[0007] A heat exchange chamber, arranged outside the inner housing;

[0008] A vacuum pumping assembly, arranged on the outer housing and communicating with the inner housing and the heat exchange chamber on both sides;

[0009] A pressure relief assembly, arranged on the outer housing and communicating with the bottom of the heat exchange chamber;

[0010] Heat exchange plates, several of which are evenly distributed on the side wall of the inner housing;

[0011] An air inlet assembly, arranged inside the outer housing, and its air inlet end extends into the heat exchange chamber and communicates with the inner housing;

[0012] A spiral heating tube, arranged in the heat exchange chamber and in contact with the heat exchange plates.

[0013] Preferably, the vacuum pumping assembly includes a vacuum pumping motor disposed on the inner wall of the outer housing. A first connecting pipe is provided between the air inlet end of the vacuum pumping motor and the inner housing, and a second connecting pipe is provided between the air outlet end of the vacuum pumping motor and the heat exchange chamber.

[0014] Preferably, the pressure discharging assembly includes an inclined groove disposed at the bottom of the heat exchange chamber. A pressure relief pipe is provided at the bottom of the inclined groove, and a pressure relief valve is provided on the side wall of the pressure relief pipe.

[0015] Preferably, the air inlet assembly includes an air inlet channel disposed on the outer housing. An air inlet chamber is provided at the air outlet end of the air inlet channel, an air valve is provided on the side wall of the air inlet channel, a plurality of air inlet pipes are provided on the air inlet chamber, and a plurality of air pipes communicating with the inner housing are provided on the air inlet pipes.

[0016] Preferably, a heat insulation layer is provided outside the heat exchange chamber.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: For a heat exchange device of a vacuum clothes dryer of the present utility model, during use, the water in the clothes is vaporized for dehydration by the cooperation of the vacuum pumping assembly and the spiral heating tube. The water vapor with heat enters the heat exchange chamber through the vacuum pumping assembly, and the water vapor with heat exchanges heat with the inner housing through the heat exchange plate, avoiding a large amount of heat dissipation during the operation of the vacuum pumping device and ensuring the clothes drying effect of the clothes dryer. The heat exchange is carried out by the water vapor with heat in the heat exchange chamber in cooperation with the spiral heating tube, reducing the energy consumption of the clothes dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the main sectional structural schematic diagram of the present utility model;

[0019] Figure 2 is the left sectional structural schematic diagram of the present utility model.

[0020] In the figure: 1. Housing; 1-1. Outer housing; 1-2. Inner housing; 1-3. Sealing cover; 2. Heat exchange chamber; 3. Vacuum pumping assembly; 3-1. Vacuum pumping motor; 3-2. First connecting pipe; 3-3. Second connecting pipe; 4. Pressure discharging assembly; 4-1. Inclined groove; 4-2. Pressure relief pipe; 4-3. Pressure relief valve; 5. Heat exchange plate; 6. Air inlet assembly; 6-1. Air inlet channel; 6-2. Air valve; 6-3. Air inlet chamber; 6-4. Air inlet pipe; 6-5. Air pipe; 7. Spiral heating tube; 8. Heat insulation layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1-2 , the present invention provides a technical solution: a heat exchange device for a vacuum clothes dryer, including: The housing 1 includes an outer housing 1-1, an inner housing 1-2, and a sealing cover 1-3. The bottom of the outer housing 1-1 has a support block, and the inner housing 1-2 is located on the support block inside the outer housing 1-1. The sealing cover 1-3 is arranged on the outer housing 1-1 to seal the inner housing 1-2; The heat exchange chamber 2 is arranged to wrap around the outside of the inner housing 1-2; The vacuum pumping assembly 3 is arranged on the outer housing 1-1 and is respectively communicated with the inner housing 1-2 and the heat exchange chamber 2 on both sides. The vacuum pumping assembly 3 is used to pump the water vapor with heat energy in the inner housing 1-2 into the inside of the heat exchange chamber 2 for heat exchange; The pressure relief assembly 4 is arranged on the outer housing 1-1 and is communicated with the bottom of the heat exchange chamber 2. When the water vapor with heat energy enters the heat exchange chamber 2, the pressure in the heat exchange chamber 2 increases. When the pressure in the heat exchange chamber 2 exceeds the set value through the pressure relief assembly 4, it automatically relieves pressure, ensuring the safe use of the clothes dryer; A plurality of heat exchange plates 5 are evenly distributed on the side wall of the inner housing 1-2. When the heat energy in the heat exchange chamber 2 is higher than the heat energy in the inner housing 1-2, the heat exchange plates 5 transfer the heat energy in the heat exchange chamber 2 into the inner housing 1-2 to realize heat exchange for the inner housing 1-2; The air inlet assembly 6 is arranged inside the outer housing 1-1, and the air inlet end extends into the heat exchange chamber 2 and is communicated with the inner housing 1-2 for external air to enter the inner housing 1-2; The spiral heating tube 7 is arranged in the heat exchange chamber 2 and is in contact with the heat exchange plate 5. During use, the water in the clothes is vaporized for dehydration by the cooperation of the vacuum pumping assembly 3 and the spiral heating tube 7. The water vapor with heat is introduced into the heat exchange chamber 2 through the vacuum pumping assembly 3. As the pressure in the heat exchange chamber 2 increases, the water vapor with heat releases heat energy during the liquefaction process. The released heat energy is used to exchange heat for the inner housing 1-2 through the heat exchange plate 5, avoiding a large amount of heat loss during the operation of the vacuum pumping device, enabling the water vapor with heat extracted by the vacuum pumping device to be subjected to secondary heat exchange, ensuring the clothes drying effect of the clothes dryer. The heat exchange is carried out by the water vapor with heat in the heat exchange chamber 2 in cooperation with the spiral heating tube 7, and the heat exchange is carried out by the water vapor with heat and the heat exchange plate 5, reducing the heat energy that the spiral heating tube 7 needs to generate and reducing the energy consumption of the clothes dryer.

[0023] Specifically, the vacuum pumping assembly 3 includes a vacuum pumping motor 3-1 disposed on the inner wall of the outer housing 1-1. There is a first connecting pipe 3-2 between the air inlet end of the vacuum pumping motor 3-1 and the inner housing 1-2, and a second connecting pipe 3-3 between the air outlet end of the vacuum pumping motor 3-1 and the heat exchange chamber 2. During use, by starting the vacuum pumping motor 3-1, the air in the inner housing 1-2 enters the interior of the heat exchange chamber 2, achieving the vacuum pumping of the inner housing 1-2 while allowing the vaporized water vapor to enter the heat exchange chamber 2 for secondary heat exchange, effectively avoiding the problem of a large amount of heat dissipation during the operation of the vacuum pumping device.

[0024] Specifically, the pressure relief assembly 4 includes an inclined groove 4-1 disposed at the bottom of the heat exchange chamber 2 for collecting the liquefied water droplets in the heat exchange chamber 2. A pressure relief pipe 4-2 is provided at the bottom of the inclined groove 4-1, and a pressure relief valve 4-3 is provided on the side wall of the pressure relief pipe 4-2. When the internal pressure of the heat exchange chamber 2 reaches the set pressure, by opening the pressure relief valve 4-3, the water and air in the heat exchange chamber 2 are discharged from the pressure relief pipe 4-2, avoiding excessive pressure in the heat exchange chamber 2 and ensuring the safe use of the equipment.

[0025] Specifically, the air inlet assembly 6 includes an air inlet channel 6-1 disposed on the outer housing 1-1. The air outlet end of the air inlet channel 6-1 is provided with an air inlet chamber 6-3, an air valve 6-2 is provided on the side wall of the air inlet channel 6-1, and a number of air inlet pipes 6-4 are provided on the air inlet chamber 6-3. A number of air pipes 6-5 communicating with the inner housing 1-2 are provided on the air inlet pipes 6-4. During use, since the interior of the inner housing 1-2 is under negative pressure, after opening the air valve 6-2, the external air sequentially passes through the air inlet channel 6-1, the air inlet chamber 6-3, and the air inlet pipes 6-4 and then enters the inner housing 1-2 through the air pipes 6-5. By intermittently introducing air into the inner housing 1-2 and cooperating with the vacuum pumping assembly 3, the water vapor with heat energy is effectively discharged, improving the drying efficiency of the dryer.

[0026] Specifically, a heat insulation layer 8 is provided on the outer side of the heat exchange chamber 2. By providing the heat insulation layer 8, the heat loss in the heat exchange chamber 2 is effectively avoided, reducing the energy consumption in the heat exchange chamber 2.

[0027] Working principle: During the use of the present utility model, first, the spiral heating tube 7 is started to heat the inner housing 1-2, and the vacuum pumping assembly 3 is started to vacuum pump the inner housing 1-2. At the same time, the water vapor with heat is introduced into the heat exchange chamber 2 and contacts the heat exchange plate 5 for secondary heat exchange, effectively reducing the energy consumption of the dryer.

[0028] In the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of 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 invention can be understood according to specific circumstances.

[0029] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchange device for a vacuum clothes dryer, characterized in that, Comprising: A housing (1), including an outer housing (1-1), an inner housing (1-2) and a sealing cover (1-3), the sealing cover (1-3) is arranged on the outer housing (1-1) for sealing the inner housing (1-2); A heat exchange chamber (2), arranged to wrap around the outside of the inner housing (1-2); A vacuum pumping assembly (3), arranged on the outer housing (1-1), and communicating with the inner housing (1-2) and the heat exchange chamber (2) respectively on both sides; A pressure relief assembly (4), arranged on the outer housing (1-1), and communicating with the bottom of the heat exchange chamber (2); A plurality of heat exchange plates (5), evenly distributed on the side wall of the inner housing (1-2); An air inlet assembly (6), arranged inside the outer housing (1-1), and the air inlet end extends into the heat exchange chamber (2) and communicates with the inner housing (1-2); A spiral heating tube (7), arranged inside the heat exchange chamber (2), and in contact with the heat exchange plate (5).

2. The heat exchange device of a vacuum clothes dryer according to claim 1, characterized in that: The vacuum pumping assembly (3) includes a vacuum pumping motor (3-1) arranged on the inner wall of the outer housing (1-1), a first connecting pipe (3-2) is provided between the air inlet end of the vacuum pumping motor (3-1) and the inner housing (1-2), and a second connecting pipe (3-3) is provided between the air outlet end of the vacuum pumping motor (3-1) and the heat exchange chamber (2).

3. A heat exchange device for a vacuum clothes dryer according to claim 1, characterized in that: The pressure relief assembly (4) includes an inclined groove (4-1) arranged at the bottom of the heat exchange chamber (2), a pressure relief pipe (4-2) is provided at the bottom of the inclined groove (4-1), and a pressure relief valve (4-3) is provided on the side wall of the pressure relief pipe (4-2).

4. A heat exchange device for a vacuum clothes dryer according to claim 1, characterized in that: The air inlet assembly (6) includes an air inlet channel (6-1) arranged on the outer housing (1-1), an air inlet chamber (6-3) is provided at the air outlet end of the air inlet channel (6-1), an air valve (6-2) is provided on the side wall of the air inlet channel (6-1), a plurality of air inlet pipes (6-4) are provided on the air inlet chamber (6-3), and a plurality of air pipes (6-5) communicating with the inner housing (1-2) are provided on the air inlet pipes (6-4).

5. The heat exchange device of a vacuum clothes dryer according to claim 1, characterized in that: A heat preservation layer (8) is arranged outside the heat exchange chamber (2).

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