Heat pump grain drying tower

Abstract

The utility model discloses grain drying tower of heat pump, including outer wall, heat preservation wall and drying tower body, the heat preservation wall is installed in the outer wall inside, the heat preservation wall inside is provided with machine room, the compressor is installed in the machine room inside, the machine room inside is equipped with expansion valve, the outer wall surface installs the air draught fan, the heat preservation wall inside installs evaporimeter, the heat preservation wall inside is provided with condenser, the heat preservation wall inside is equipped with dust remover. This grain drying tower of heat pump, through installing heat preservation wall in the outer wall inside, set up machine room in the heat preservation wall inside, install compressor in the machine room inside, and the energy efficiency ratio is significantly higher than traditional electric heating equipment, and drying medium is closed circulation in the tower, avoids heat loss, removes moisture through condensation dehumidification or exhaust system simultaneously, guarantees drying efficiency, and when using, cost is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of grain drying technology, and in particular relates to a heat pump grain drying tower. Background Technology

[0002] Grains refer to the general term for various plant seeds used in cooking, and can also be broadly referred to as cereals. Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, starch, etc. When storing grains, it is necessary to remove the moisture from them. At this time, a heat pump grain drying tower can be used to dry the grains.

[0003] Currently available heat pump grain drying towers typically use electricity directly for heating during actual use, without any other auxiliary functions. Therefore, the ratio of electrical energy to heat energy conversion is 1:1, resulting in high electricity consumption and high operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a heat pump grain drying tower to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A heat pump grain drying tower includes an outer wall, an insulation wall, and a drying tower body. The insulation wall is installed inside the outer wall, and a machine room is set inside the insulation wall. A compressor is installed inside the machine room, and an expansion valve is provided inside the machine room. An induced draft fan is installed on the surface of the outer wall, an evaporator is installed inside the insulation wall, a condenser is set inside the insulation wall, and a dust collector is provided inside the insulation wall. The outer wall is connected to the drying tower body through a first hot air duct, a second hot air duct, a third hot air duct, and a fourth hot air duct. The drying tower body is connected to the outer wall through a heat recovery channel, one end of which is located at the recovery port. A hoist is connected to the side of the drying tower body.

[0006] Preferably, a temperature sensor is installed inside the drying tower body, and an isolation plate is installed inside the drying tower body.

[0007] Preferably, a cold air duct is installed on the surface of the drying tower body, an electrical distribution cabinet is installed inside the machine room, and a heat pump unit is installed inside the insulation wall.

[0008] Preferably, a preheater is provided outside the condenser, and a recovery port is opened on the surface of the outer wall, and the recovery ports are symmetrically distributed.

[0009] Preferably, a corridor is formed on the surface of the exterior wall, and the corridor is located at the top of the computer room.

[0010] Preferably, the induced draft fans are symmetrically distributed.

[0011] This utility model of a heat pump grain drying tower has the following advantages: The heat pump grain drying tower incorporates an insulation wall installed inside the outer wall, with a machine room inside the insulation wall housing a compressor and an expansion valve. An induced draft fan is installed on the outer wall surface, and an evaporator and a condenser are installed inside the insulation wall. A dust collector is also installed inside the insulation wall. The outer wall is connected to the drying tower body via a first, second, third, and fourth hot air duct. The drying tower body is connected to the outer wall via a heat recovery channel, one end of which is located at the recovery port. A hoist is connected to the side of the drying tower body. When using the drying tower, the grain can be lifted into the dryer via the hoist, and then outside air can be introduced by the induced draft fan. Liquid refrigerant passes through the expansion valve... The refrigerant enters the evaporator, absorbs heat from the ambient air, and evaporates into a gaseous state. At this time, the evaporator temperature can be as low as -20℃ to 38℃, continuously acquiring low-grade heat energy from the outside. Then, the gaseous refrigerant is compressed by the compressor into a high-temperature, high-pressure gas, with a temperature reaching 100℃ to 110℃. This process consumes electrical energy and improves the heat grade. Subsequently, the high-temperature, high-pressure refrigerant enters the condenser, releases heat through the heat exchanger to heat the drying medium, and condenses into a liquid state. The liquid refrigerant is then depressurized by the expansion valve and re-enters the evaporator, completing the cycle. Thus, this system can absorb and transfer 3 to 4 units of heat from the environment for every unit of electrical energy consumed, resulting in a significantly higher energy efficiency ratio than traditional electric heating equipment. Furthermore, the drying medium circulates in a closed loop within the tower, preventing heat loss. At the same time, moisture is removed through a condensation dehumidification or dehumidification system, ensuring drying efficiency and greatly reducing costs during use. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the drying tower body structure of this utility model;

[0015] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0016] Figure 4 For the present utility model Figure 2 Enlarged view of section B.

[0017] The markings in the diagram are as follows: 1. Exterior wall; 2. Insulated wall; 3. Machine room; 4. Compressor; 5. Expansion valve; 6. Exhaust fan; 7. Evaporator; 8. Condenser; 9. First hot air duct; 10. Second hot air duct; 11. Third hot air duct; 12. Fourth hot air duct; 13. Cold air duct; 14. Hoist; 15. Drying tower body; 16. Temperature sensor; 17. Isolation plate; 18. Dust collector; 19. Distribution cabinet; 20. Heat pump unit; 21. Preheater; 22. Recovery port; 23. Corridor; 24. Heat recovery channel. Detailed Implementation

[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0023] To better understand the purpose, structure, and function of this utility model, the heat pump grain drying tower of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, the heat pump grain drying tower of this utility model includes an outer wall 1, an insulation wall 2, and a drying tower body 15. The insulation wall 2 is installed inside the outer wall 1, and a machine room 3 is set inside the insulation wall 2. A compressor 4 is installed inside the machine room 3, and an expansion valve 5 is installed inside the machine room 3. An induced draft fan 6 is installed on the surface of the outer wall 1, and an evaporator 7, a condenser 8, and a dust collector 18 are installed inside the insulation wall 2. The outer wall 1 is connected to the drying tower body 15 through a first hot air duct 9, a second hot air duct 10, a third hot air duct 11, and a fourth hot air duct 12. By installing the induced draft fan 6, the evaporator 7, the condenser 8, and the dust collector 18, when using the drying tower, the grain can be lifted into the drying tower by a hoist 14, and then the outside air can be introduced by the induced draft fan 6. The liquid refrigerant enters the evaporator 7 through the expansion valve 5, absorbs heat from the ambient air, and evaporates into a gaseous state. At this time, the temperature of the evaporator 7 can be as low as -20℃ to 38℃. The system continuously acquires low-grade heat energy from the outside environment. The gaseous refrigerant is then compressed by compressor 4 into a high-temperature, high-pressure gas, reaching temperatures of 100℃ to 110℃. This process consumes electrical energy and increases the heat grade. The high-temperature, high-pressure refrigerant then enters condenser 8, where it releases heat through a heat exchanger to heat the drying medium. It condenses into a liquid state, and the liquid refrigerant is depressurized by expansion valve 5 before re-entering evaporator 7, completing the cycle. This allows the system to absorb and transfer 3-4 units of heat from the environment for every unit of electrical energy consumed, resulting in a significantly higher energy efficiency ratio than traditional electric heating equipment. The drying tower body 15 is connected to the outer wall 1 via a heat recovery channel 24. One end of the heat recovery channel 24 is located at the recovery port 22. A hoist 14 is connected to the side of the drying tower body 15. By installing the heat recovery channel 24, the drying medium can circulate in a closed loop within the tower, preventing heat loss. Simultaneously, moisture is removed through a condensation dehumidification or dehumidification system, ensuring drying efficiency and significantly reducing costs during use.

[0025] A temperature sensor 16 is installed inside the drying tower body 15, and an isolation plate 17 is installed inside the drying tower body 15. By installing the temperature sensor 16, the temperature inside the drying tower can be known at all times, providing a reference for subsequent temperature adjustment, which is very convenient to use.

[0026] A cold air duct 13 is installed on the surface of the drying tower body 15, an electrical distribution cabinet 19 is installed inside the machine room 3, and a heat pump unit 20 is installed inside the insulation wall 2. By installing the cold air duct 13, the liquid from the grain drying process can be cooled to form a liquid, which is then discharged, making it very convenient to use.

[0027] The condenser 8 is equipped with a preheater 21 on the outside, and a recovery port 22 is opened on the surface of the outer wall 1. The recovery ports 22 are symmetrically distributed. By installing the preheater 21, the waste heat can be used to provide waste heat to the air inside the system, which can improve working efficiency and thus improve drying efficiency.

[0028] A corridor 23 is opened on the surface of the exterior wall 1. The corridor 23 is located on the top of the computer room 3. By installing the corridor 23, a walking passage can be provided for the users, making it easier for them to reach the location. It is very convenient to use.

[0029] The induced draft fans 6 are symmetrically distributed. By installing the induced draft fans 6 in this way, air can be introduced evenly, thereby improving the air intake efficiency.

[0030] The working principle of this heat pump grain drying tower is as follows: When using the drying tower, the grain is first placed inside the drying tower body 15. An insulation wall 2 is installed inside the outer wall 1, and a machine room 3 is set up inside the insulation wall 2. A compressor 4 is installed inside the machine room 3, and an expansion valve 5 is installed inside the machine room 3. An induced draft fan 6 is installed on the surface of the outer wall 1, and an evaporator 7 and a condenser 8 are installed inside the insulation wall 2. A dust collector 18 is also installed inside the insulation wall 2. The outer wall 1 is connected to the drying tower body 15 through a first hot air duct 9, a second hot air duct 10, a third hot air duct 11, and a fourth hot air duct 12. The drying tower body 15 is connected to the outer wall 1 through a heat recovery channel 24, one end of which is located at the recovery port 22. A hoist 14 is connected to the side of the drying tower body 15. When using the drying tower, the grain can be lifted into the drying tower by the hoist 14, and then outside air can be introduced by the induced draft fan 6. Liquid refrigerant passes through the expansion valve 5. The refrigerant enters evaporator 7, absorbs heat from the ambient air, and evaporates into a gaseous state. At this time, the temperature of evaporator 7 can be as low as -20℃ to 38℃, continuously acquiring low-grade heat energy from the outside. Then, the gaseous refrigerant is compressed by compressor 4 into a high-temperature and high-pressure gas, with a temperature reaching 100℃ to 110℃. This process consumes electrical energy and improves the heat grade. Subsequently, the high-temperature and high-pressure refrigerant enters condenser 8, releases heat through the heat exchanger to heat the drying medium, and condenses into a liquid state. The liquid refrigerant is depressurized by expansion valve 5 and re-enters evaporator 7 to complete the cycle. Thus, this system can absorb and transfer 3 to 4 units of heat from the environment for every unit of electrical energy consumed, with a significantly higher energy efficiency ratio than traditional electric heating equipment. Furthermore, the drying medium circulates in a closed loop within the tower, preventing heat loss. At the same time, moisture is removed through a condensation dehumidification or dehumidification system to ensure drying efficiency and greatly reduce costs during use. During the operation of this heat pump grain drying tower, the current, pressure, temperature, and material status are monitored in real time, and operating data is recorded to ensure that there are no abnormalities such as overheating or blockage.

[0031] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A heat pump grain drying tower, comprising an outer wall (1), an insulation wall (2), and a drying tower body (15), characterized in that: An insulation wall (2) is installed inside the outer wall (1). A machine room (3) is set inside the insulation wall (2). A compressor (4) is installed inside the machine room (3). An expansion valve (5) is provided inside the machine room (3). An induced draft fan (6) is installed on the surface of the outer wall (1). An evaporator (7) is installed inside the insulation wall (2). A condenser (8) is set inside the insulation wall (2). A dust collector (18) is provided inside the insulation wall (2). The outer wall (1) is connected to the drying tower body (15) through a first hot air duct (9), a second hot air duct (10), a third hot air duct (11), and a fourth hot air duct (12). The drying tower body (15) is connected to the outer wall (1) through a heat recovery channel (24). One end of the heat recovery channel (24) is located at the recovery port (22). A hoist (14) is connected to the side of the drying tower body (15).

2. The heat pump grain drying tower according to claim 1, characterized in that: A temperature sensor (16) is installed inside the drying tower body (15), and an isolation plate (17) is installed inside the drying tower body (15).

3. The heat pump grain drying tower according to claim 1, characterized in that: A cold air duct (13) is installed on the surface of the drying tower body (15), a power distribution cabinet (19) is installed inside the machine room (3), and a heat pump unit (20) is installed inside the insulation wall (2).

4. The heat pump grain drying tower according to claim 1, characterized in that: The condenser (8) is provided with a preheater (21) on the outside, and a recovery port (22) is opened on the surface of the outer wall (1), and the recovery port (22) is symmetrically distributed.

5. The heat pump grain drying tower according to claim 1, characterized in that: A corridor (23) is opened on the surface of the outer wall (1), and the corridor (23) is located on the top of the machine room (3).

6. The heat pump grain drying tower according to claim 1, characterized in that: The induced draft fan (6) is symmetrically distributed.

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