CN204830701U - Dry tunnel room of dehumidification type heat pump - Google Patents

Abstract

The utility model discloses a dry tunnel room of dehumidification type heat pump has solved the big problem of current drying equipment energy consumption, including tunnel, heat pump system and ducting system, the tunnel both ends are equipped with tunnel end door and host computer room respectively, and the tunnel side is equipped with the tunnel side door, and the tunnel side door is adjacent with the host computer room, ducting system includes supply air duct, return air duct, air supply fan, return air fan and equal wind device, the supply air duct communicates with each other with return air duct, equal wind device respectively, is equipped with the return air inlet between return air duct and the tunnel, and the return air duct communicates with each other with the return air inlet, heat pump system is including the compressor, condenser, liquid storage pot, drier -filter, expansion valve, evaporimeter and the vapour and liquid separator that connect gradually, evaporimeter and condenser setting are in the supply air duct. The utility model discloses retrieve the heat energy that the damp and hot air of dry run exhaust contains, realized effective utilization of used heat, improved the utilization efficiency of the energy, saved the dry energy consumption of product, still realized the zero release, it is energy -concerving and environment -protective.

Description

A dehumidification type heat pump drying tunnel room

technical field

The utility model relates to the technical field of heat pump drying equipment, in particular to a dehumidification type heat pump drying tunnel room.

Background technique

In the fields of traditional Chinese medicinal materials processing, food processing, and agricultural product storage, drying equipment is required for drying treatment. However, the existing heat pump drying equipment consumes a lot of energy during the drying process, so energy saving is particularly important.

The Chinese invention patent with the application number CN201310423695.X discloses a method of drying industrial materials with high-temperature heat pumps and radiation. However, it directly discharges the hot and humid air that carries a large amount of heat generated during the drying process, which will cause direct discharge of dust. into the air, which is neither environmentally friendly nor energy-saving.

Utility model content

The utility model proposes a dehumidification type heat pump drying tunnel room, which solves the problem of high energy consumption of the heat pump drying equipment in the prior art, not only recovers the heat in the exhaust gas, but also realizes zero emission, energy saving and environmental protection.

The technical scheme of the utility model is achieved in that:

A dehumidification type heat pump drying tunnel room, including a tunnel, a heat pump system and an air duct system, the two ends of the tunnel are respectively provided with a tunnel end door and a main machine room, the side of the tunnel is provided with a tunnel side door, and the tunnel side door is adjacent to the main machine room; The air duct system includes an air supply duct, a return air duct, an air supply fan, a return air fan and an air equalizing device; the air supply duct is provided with an air supply fan, and a return air outlet is provided between the return air duct and the tunnel, and the return air outlet There is a return air fan on the top; the air supply duct is located in the main engine room, the air supply duct communicates with the return air duct and the air equalizing device respectively, and the return air duct communicates with the return air outlet; the heat pump system includes a compressor, a condensing device, liquid storage tank, dry filter, expansion valve, evaporator and gas-liquid separator; the evaporator and condenser are arranged in the air supply pipeline.

The air equalizing device is arranged in the host room.

The air equalizing device is provided with a structure for evenly distributing air volume.

The return air duct is located above the tunnel.

A water collecting device and a drainage pipe are arranged below the evaporator.

The tunnel is provided with a moisture outlet.

Beneficial effects of the utility model: Compared with the existing tunnel heat pump drying technology, the invention recovers the heat energy contained in the hot and humid air discharged during the drying process, realizes the effective utilization of waste heat, improves the utilization efficiency of energy, and saves the cost of products. Drying energy consumption; also achieved zero emissions, energy saving and environmental protection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a side view of FIG. 1 .

Explanation of reference signs: 1. Air supply duct; 2. Air supply fan; 3. Host room; 4. Air equalizing device; 5. Return air duct; 6. Material vehicle; 7. Tunnel; 8. Return air fan; 9 , return air outlet; 10, tunnel end door; 11, tunnel side door; 12, condenser; 13, water collection device; 14, evaporator; 15, gas-liquid separator; 16, compressor; 17, expansion valve; 18, Dry filter; 19, liquid storage tank.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1 and Figure 2, the embodiment of the utility model provides a dehumidification type heat pump drying tunnel room, including: a tunnel 7, a heat pump system and an air duct system. The heat pump system is located at one end of the tunnel 7, and the air duct system is connected with the tunnel 7 to form an air circulation loop, so as to achieve the purpose of dehumidifying and drying the items in the tunnel 7.

The two ends of the tunnel 7 are respectively provided with a tunnel end door 10 and a main machine room 3 , and the side of the tunnel 7 is provided with a tunnel side door 11 . The tunnel side door 11 is adjacent to the host room 3 . The tunnel 7 is provided with a material cart 6, which can enter from the tunnel end door 10 and come out from the tunnel side door 11, so as to facilitate the movement of materials in the tunnel 7. Further, the tunnel 7 is also provided with a moisture outlet, which can discharge the moisture in the tunnel 7 . A control system (not shown in the figure) for controlling the heat pump system and the air duct system is provided in the host room 3 .

The air duct system includes an air supply duct 1 , a return air duct 5 , an air supply fan 2 , a return air fan 8 and an air equalizing device 4 . The air supply duct 1 is provided with an air supply fan 2 . There is a space between the tunnel end door 10 and the tunnel 7, and a return air outlet 9 is arranged between the return air duct 5 and the tunnel 7, and the return air outlet 9 is located in the space between the tunnel end door 10 and the tunnel 7. A return air fan 8 is arranged on the air return port 9, and the return air fan 8 is located above the end door 10 of the tunnel. 5 air return ducts are located above the tunnel 7, and the air return duct 5 communicates with the air return port 9. The air supply duct 1 is located in the main engine room 3 , and one end of the air supply duct 1 is connected with the return air duct 5 , and the other end is connected with the air equalizing device 4 , which is arranged in the main engine room 3 . Therefore, the air supply duct 1, the tunnel 7, the return air outlet 9 and the return air duct 5 form an air circulation loop. The air supply fan 2 and the return air fan 8 increase the flow of air in the air duct system, and the air volume uniform distribution structure is arranged in the air equalizing device 4 at one end of the tunnel 7, so that the air entering the tunnel 7 is uniform up and down, thereby realizing Material trolley 6 can be evenly dried up and down.

The heat pump system includes a compressor 16 , a condenser 12 , a liquid storage tank 19 , a dry filter 18 , an expansion valve 17 , an evaporator 14 and a gas-liquid separator 15 . The compressor 16 is connected to the condenser 12, the condenser 12 is connected to the liquid storage tank 19, the liquid storage tank 19 is connected to the dry filter 18, the dry filter 18 is connected to the expansion valve 17, and the expansion valve 17 is connected to the evaporator 14, the evaporator 14 is connected with the gas-liquid separator 15, and the gas-liquid separator 15 is connected with the compressor 16 to form the whole heat pump system.

The compressor 16 compresses the low-temperature and low-pressure refrigerant gas in the heat pump system to output high-temperature and high-pressure refrigerant gas. The condenser 12 condenses the high-temperature and high-pressure refrigerant gas into a high-pressure and normal-temperature liquid, and releases heat. The expansion valve 17 changes the high-pressure normal-temperature liquid into a low-temperature and low-pressure refrigerant gas-liquid two-phase body, and simultaneously has the function of throttling and controlling the flow of the refrigerant. The throttling function of the expansion valve 17: After the high-temperature and high-pressure liquid refrigerant passes through the throttling hole of the expansion valve, it becomes a low-temperature and low-pressure mist-like hydraulic refrigerant, creating conditions for the evaporation of the refrigerant; controlling the flow of the refrigerant: The liquid refrigerant entering the evaporator, after passing through the evaporator, the refrigerant evaporates from the liquid state to the gas state, absorbs heat, and lowers the temperature. The expansion valve 17 controls the flow of refrigerant to ensure that the outlet of the evaporator 14 is completely gaseous refrigerant. If the flow is too large, the outlet contains liquid refrigerant, which may enter the compressor and cause liquid shock; if the flow of refrigerant is too small, the evaporation will be completed in advance , resulting in insufficient cooling.

The refrigerant in the evaporator 14 evaporates and absorbs heat, and turns the low-temperature and low-pressure refrigerant gas-liquid two-phase body into a low-temperature and low-pressure refrigerant gas and absorbs heat. When the heat pump system is in operation, due to changes in working conditions or adjustments to the heat pump system, the refrigerant can be returned to the liquid storage tank 19 to stabilize the circulation of the refrigerant in the entire system and keep it in a normal operating state . The gas-liquid separator 15 prevents liquid from entering the compressor 16 and causing liquid hammering of the compressor 16 . The dry filter 18 absorbs moisture in the heat pump system, prevents moisture and impurities from passing through, and prevents ice and dirt from occurring in the entire system pipeline.

The evaporator 14 and the condenser 12 are arranged in the air supply duct 1 , the evaporator 14 is used to dehumidify the hot and humid air flowing in the air supply duct 1 , and the condenser 12 heats up the dehumidified dry air. Below the evaporator 14, a water collecting device 13 and a drainage pipe are arranged, and the drainage pipe protrudes out of the whole device, and is used to discharge the water that the hot and humid air meets the evaporator 14 and becomes.

The principle of the utility model: open the air supply fan 2 and the return air fan 8, the evaporator 14 dehumidifies the air in the air supply pipeline 1, and the condenser 12 heats the air in the air supply pipeline 1; The hot and dry air in the tunnel is evenly sent to the tunnel 7 to dry the materials in the material trolley 6 in the tunnel 7; the hot and humid air is driven by the return air fan 8 and enters the return air duct 5 through the return air outlet 9; the air supply fan 2 will The hot and humid air is sent into the air supply duct 1, dehumidified by the evaporator 14, and the dry air generated is heated by the condenser 12 and then enters the tunnel 7 again through the air equalizing device 4, and so on. During this process, when the hot and humid air passes through the evaporator 14, the latent heat of water vapor in the air is absorbed and condensed into water, which is discharged through the water collecting device 13 and the drainage pipeline; the refrigerant medium in the heat pump system is compressed by the compressor 16 Enter the condenser 12, transfer heat to the condenser 12, make the condenser 12 heat the air to form hot air, so as to realize the recovery and utilization of energy in the hot and humid air discharged from the drying process.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (6)

1. room, a dehumidification type heat pump drying tunnel, comprise tunnel (7), heat pump and ducting system, it is characterized in that: described tunnel (7) two ends are respectively equipped with tunnel end door (10) and machine hall (3), tunnel (7) side is provided with tunnel side door (11), and tunnel side door (11) is adjacent with machine hall (3); Described ducting system comprises air supply duct (1), return air duct (5), breeze fan (2), return air fan (8) and equal wind apparatus (4); Be provided with breeze fan (2) in described air supply duct (1), be provided with return air inlet (9) between return air duct (5) and tunnel (7), return air inlet (9) is provided with return air fan (8); Described air supply duct (1) is positioned at machine hall (3), and air supply duct (1) communicates with return air duct (5), all wind apparatus (4) respectively, and return air duct (5) communicates with return air inlet (9); Described heat pump comprises the compressor (16), condenser (12), fluid reservoir (19), device for drying and filtering (18), expansion valve (17), evaporimeter (14) and the gas-liquid separator (15) that connect successively; Described evaporimeter (14) and condenser (12) are arranged in air supply duct (1).

2. room, dehumidification type heat pump drying tunnel according to claim 1, is characterized in that: described equal wind apparatus (4) is arranged in machine hall (3).

3. room, dehumidification type heat pump drying tunnel according to claim 2, is characterized in that: be provided with air quantity uniform distribution structure in described equal wind apparatus (4).

4. room, dehumidification type heat pump drying tunnel according to claim 1, is characterized in that: described return air duct (5) is positioned at top, tunnel (7).

5. room, dehumidification type heat pump drying tunnel according to claim 1, is characterized in that: described evaporimeter (14) below is provided with captation (13) and drainage pipeline.

6. room, dehumidification type heat pump drying tunnel according to claim 1, is characterized in that: described tunnel (7) are provided with moisture exhausting port.