Drying room and refrigeration house integrated system based on heat pump
By designing an integrated system of drying room and cold storage based on heat pump, the cost and space issues caused by the separate operation of drying room and cold storage were solved, achieving functional conversion and energy-saving and environmental protection effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-17
AI Technical Summary
Existing drying rooms and cold storage facilities are usually independent units, which requires users to purchase and install them separately, increasing costs and space requirements, and failing to meet the needs of using drying and refrigeration functions at different times.
Design an integrated drying room and cold storage system based on heat pump. By dividing the room into first and second spaces, setting up different condensers and evaporators, and combining the design of fans and air outlets, the system can realize the conversion between drying and cold storage functions, and achieve automatic switching through a controller.
It enables flexible conversion between drying and cold storage functions, reduces equipment costs and space occupation, improves equipment utilization, and reduces energy consumption through high-efficiency and energy-saving heat pump units.
Smart Images
Figure CN224004075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat pump technology, specifically to an integrated drying room and cold storage system based on a heat pump that can switch between drying and cold storage functions. Background Technology
[0002] Currently, drying rooms and cold storage facilities are typically separate units used for different purposes. Drying rooms remove moisture from goods, while cold storage is used for low-temperature storage. However, in some cases, users may need to use drying and refrigeration functions at different times, and purchasing and installing separate drying rooms and cold storage facilities increases costs and space requirements. Designing a system that can switch between drying and cold storage functions to meet users' needs for drying and refrigeration at different times, while reducing costs and saving space, is a problem that needs to be solved. Utility Model Content
[0003] The purpose of this invention is to provide an integrated drying room and cold storage system based on a heat pump, which can switch between drying and cold storage functions to meet users' needs for drying and refrigeration at different times, while reducing costs and saving space.
[0004] The technical solution of this utility model is:
[0005] The integrated drying room and cold storage system based on heat pumps includes a room body and a heat pump unit. Its special feature is that the room body is divided into a first space and a second space. The heat pump unit includes a compressor, a first condenser, a second condenser, an expansion valve, a three-way valve, and an evaporator. The evaporator and compressor are located in the first space, the second condenser is located in the second space, and the first condenser is located outside the room body. The compressor is connected to the first condenser and the second condenser respectively through the three-way valve. The first condenser and the second condenser are connected to the compressor in sequence through the expansion valve and the evaporator.
[0006] Furthermore, the second space is divided into an upper space and a lower space by a partition, and the upper space and the lower space are connected. The second condenser is located in the upper space.
[0007] Furthermore, a first ventilation opening is provided between the first space and the lower space, and the first ventilation opening directs air to the evaporator through a ventilation duct.
[0008] Furthermore, a reactive air heat exchanger is fixed in the ventilation duct.
[0009] Furthermore, the first space and the upper space are connected by a second ventilation opening.
[0010] Furthermore, a second circulating fan is installed at the second ventilation opening.
[0011] Furthermore, a first circulating fan is installed near the second condenser.
[0012] Furthermore, the lower space is equipped with an entrance and an exit.
[0013] Furthermore, the building is equipped with an insulation layer.
[0014] Furthermore, temperature and / or humidity sensors are installed inside the room.
[0015] The beneficial effects of this utility model are:
[0016] (1) Dual-purpose function: This utility model can switch between drying and cold storage functions to meet the needs of users at different times and improve the utilization rate of the equipment.
[0017] (2) Reduced costs: Users do not need to purchase drying rooms and cold storage separately, saving equipment costs and installation space.
[0018] (3) Energy saving and environmental protection: Heat pump units are characterized by high efficiency and energy saving. Compared with traditional drying and refrigeration equipment, they can reduce energy consumption and reduce the impact on the environment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram illustrating the principle of this utility model.
[0020] The components are: 1. Compressor; 2. Evaporator; 3. First condenser; 4. Second condenser; 5. Chamber body; 52. Second space partition; 51. Upper space; 53. Lower space; 54. First space; 57. Exit door; 58. Entrance door; 55. First vent; 56. Ventilation duct; 59. Second vent; 6. Material cart; 7. Expansion valve; 81. First circulating fan; 82. Second circulating fan; 9. Three-way valve. Detailed Implementation
[0021] The integrated drying room and cold storage system based on heat pumps includes room 5 and heat pump units, and room 5 is divided into sections as follows: Figure 1 The first space 54 and the second space are shown. The heat pump unit includes a compressor 1, a first condenser 3, a second condenser 4, an expansion valve 7, a three-way valve 9, and an evaporator 2. The first space is used to accommodate most of the structure of the heat pump unit, including the evaporator 2, the compressor 1, the expansion valve 7, the second circulating fan 82, etc. The second condenser 4 is located in the second space, and the first condenser 3 is located outside the chamber 5. The compressor 1 is connected to the first condenser 3 and the second condenser 4 through the three-way valve 9. The first condenser 3 and the second condenser 4 are connected to the compressor 1 in sequence through the expansion valve 7 and the evaporator 2.
[0022] Furthermore, the second space is divided into an upper space 51 and a lower space 53 by a partition 52. The upper space 51 and the lower space 53 are connected. The partition 52 guides the airflow to form a circulation loop in the second space. The second condenser 4 is located in the upper space 51. The lower space 53 is provided with an entrance 58 and an exit 57. The lower space 53 is used to accommodate items to be dried or refrigerated. The items to be dried or refrigerated are placed on the material cart 6. The material cart 6 enters from the entrance 58 and exits from the exit 57.
[0023] Furthermore, a first circulating fan 81 is installed near the second condenser 4.
[0024] Furthermore, a first vent 55 is provided between the first space 54 and the lower space 53, and the first vent 55 guides air to the evaporator 2 through the ventilation duct 56. Further still, the ventilation duct is L-shaped. Even further still, a reactive air heat exchanger is fixed in the ventilation duct 56. The function of the reactive air heat exchanger is to exchange heat between the incoming and outgoing air, reduce the temperature of the air entering the evaporator, allowing it to reach the evaporator dew point temperature more quickly, improving dehydration efficiency, increasing the outlet air temperature, and allowing it to enter the upper space 51.
[0025] Furthermore, the first space 54 and the upper space 51 are connected by a second ventilation opening 59, and a second circulating fan 82 is installed at the second ventilation opening 59.
[0026] Furthermore, the chamber 5 is equipped with an insulation layer, which has good thermal insulation performance.
[0027] Furthermore, temperature and / or humidity sensors are installed inside the chamber to monitor the temperature and humidity inside the chamber, so as to adjust the operating status of the heat pump unit according to the actual situation.
[0028] This invention also includes a controller for controlling the refrigerant flow direction and flow rate of the three-way valve 9, thereby switching the operating state of the heat pump unit between drying mode and cold storage mode. The controller also receives signals from temperature and humidity sensors and controls the operation of the heat pump unit and the three-way valve 9, achieving automatic switching between drying and cold storage functions and improving the intelligence level of the equipment.
[0029] The principle of this utility model is:
[0030] In drying mode, the control system activates the heat pump unit, and the three-way valve 9 switches to the second condenser 4. The heat pump unit transfers heat to the drying chamber, raising the temperature to remove moisture from the items. Temperature and humidity sensors monitor the temperature and humidity inside the drying chamber in real time. When the preset drying conditions are reached, the control system stops the heat pump unit.
[0031] In cold storage mode, the three-way valve 9 switches to the first condenser 3, and the second condenser 4 stops working, expelling heat from the drying chamber and lowering the temperature to achieve the refrigeration function. A temperature sensor monitors the temperature inside the drying chamber in real time. When the preset refrigeration temperature is reached, the control system maintains the heat pump unit's operating state to keep the refrigeration temperature stable.
Claims
1. A heat pump-based drying room and cold storage integrated system, comprising a room body (5) and a heat pump unit, characterized in that: The house body (5) is divided into a first space (54) and a second space, and the heat pump unit comprises a compressor (1), a first condenser (3), a second condenser (4), an expansion valve (7), a three-way valve (9) and an evaporator (2), the evaporator (2) and the compressor (1) are arranged in the first space (54), the second condenser (4) is arranged in the second space, and the first condenser (3) is arranged outside the house body (5); the compressor (1) is connected with the first condenser (3) and the second condenser (4) through the three-way valve (9), and the first condenser (3) and the second condenser (4) are both connected with the compressor (1) through the expansion valve (7) and the evaporator (2) in sequence.
2. The heat pump-based drying room and cold storage integrated system according to claim 1, characterized by: The second space is divided into an upper space (51) and a lower space (53) by a partition plate (52), the upper space (51) and the lower space (53) are communicated, and the second condenser (4) is arranged in the upper space (51).
3. The heat pump-based drying room and cold storage integrated system according to claim 2, characterized in that: A first ventilation opening (55) is arranged between the first space (54) and the lower space (53), and the first ventilation opening (55) guides air to the evaporator (2) through a ventilation pipeline (56).
4. The heat pump-based drying room and cold storage integrated system according to claim 3, characterized in that: An idle air heat exchanger is fixed in the ventilation pipeline (56).
5. The heat pump-based drying room and cold storage integrated system according to claim 4, characterized in that: The first space (54) and the upper space (51) are communicated through a second ventilation opening (59). 6.The heat pump-based drying room and cold storage integrated system according to claim 5, characterized in that: A second circulating fan (82) is arranged at the second ventilation opening (59). 7.The heat pump-based drying room and cold storage integrated system according to claim 2, characterized in that: A first circulating fan (81) is arranged near the second condenser (4). 8.The heat pump-based drying room and cold storage integrated system according to claim 2, characterized in that: The lower space (53) is provided with an entrance opening (58) and an exit opening (57).
9. The heat pump-based drying room and cold storage integrated system according to any one of claims 1-7, characterized in that: The house body (5) is provided with a heat preservation layer.
10. The heat pump-based drying room and cold storage integrated system according to any one of claims 1-7, characterized in that: A temperature sensor and / or a humidity sensor are arranged in the house body (5).