Multi-effect regenerative dehumidification cabinet

Abstract

The utility model belongs to the technical field of dehumidification device, concretely relates to a kind of multi-effect regenerative dehumidification box including unit casing, at least two plate sensible heat exchangers are equipped in unit casing, plate sensible heat exchanger is made of multiple layers vertical arrangement metal plate, two mutually perpendicular passages are formed by interleaving between multiple layers metal plate, respectively as steam channel and air channel, the steam channel of all plate sensible heat exchangers is connected in series;Steam inlet, air inlet and outlet are equipped on unit casing, air inlet is equipped with multiple, and with plate sensible heat exchanger one-to-one correspondence, the steam channel of plate sensible heat exchanger is connected with steam inlet and outlet, and air channel is connected with air inlet and outlet.Utilize the normal temperature natural air in workshop to carry out cooling to high-temperature high-humidity steam overflowed in steaming furnace, make the moisture in steam condense and precipitate, and discharge after being collected by water pan, effectively reduce the humidity of steam, avoid the health and safety hidden danger brought by steam condensation in workshop.

Description

Technical Field

[0001] This utility model relates to a multi-effect regenerative dehumidification box, belonging to the technical field of dehumidification devices. Background Technology

[0002] In the food processing industry, steamers are commonly used equipment. Their working principle involves using steam to process food. During normal operation, the temperature of the incoming steam is generally maintained between 100 and 150°C. However, in actual food production, a large amount of steam inevitably overflows from the steamer; the temperature of this overflowing steam is approximately between 50 and 75°C.

[0003] The overflowing steam has brought many negative effects to the food production workshop, specifically as follows:

[0004] Firstly, it obstructs visibility: Steam permeates the workshop, greatly interfering with workers' vision, leading to reduced work efficiency and an increased probability of operational errors. Especially in some production processes requiring precise operation, poor visibility may result in substandard product quality or even production accidents.

[0005] Secondly, there are hygiene risks: steam will condense into water droplets on the walls, ceilings, and floors of the workshop, making the environment damp. A damp environment is highly conducive to the growth of bacteria, which can lead to hygiene problems, affect the quality and safety of food, and fail to meet the hygiene standards of the food processing industry.

[0006] Third, it sows the seeds of safety hazards: If water droplets condense inside or outside electrical equipment, it may cause electrical short circuits and other malfunctions, which may lead to fires, electric shocks and other safety accidents, seriously threatening the lives of workers and the safety of property in the workshop.

[0007] Therefore, developing a dehumidifier that can efficiently handle steam overflowing from the steam oven and effectively solve the above problems is of great practical significance. Utility Model Content

[0008] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a multi-effect regenerative dehumidification box that can effectively handle the high-temperature and high-humidity steam overflowing from the steam oven, prevent the steam from spreading and condensing in the workshop, and eliminate problems such as obstructed vision, hygiene hazards and safety hazards caused by steam.

[0009] The multi-effect regenerative dehumidification box of this utility model includes a unit shell, inside which are at least two plate sensible heat exchangers. The plate sensible heat exchangers are composed of multiple layers of vertically arranged metal plates, which are staggered to form two mutually perpendicular channels, serving as steam channels and air channels respectively. The steam channels of all plate sensible heat exchangers are connected in series. The unit shell is provided with a steam inlet, an air inlet, and an air outlet. There are multiple air inlets, each corresponding to one of the plate sensible heat exchangers. The steam channel of the plate sensible heat exchanger connects the steam inlet and the air outlet, and the air channel connects the air inlet and the air outlet.

[0010] Inside the unit casing, a mixing chamber is located after the plate sensible heat exchanger. After the gas exits the plate heat exchanger, it is mixed in the mixing chamber before being discharged from the outlet.

[0011] Furthermore, the plate sensible heat exchanger is arranged in parallel with the mixing chamber. The outlet of the plate sensible heat exchanger is located at one end of the mixing chamber, while the outlet of the unit casing is located at the other end of the mixing chamber. This allows the airflow to pass completely through the mixing chamber, extending the flow path and improving the mixing effect.

[0012] Specifically, the mixing chamber is equipped with an L-shaped guide plate that directs the air discharged from the plate sensible heat exchanger to one end of the mixing chamber.

[0013] The plate sensible heat exchanger is provided with a water receiving tray at the bottom.

[0014] The water collection tray is connected to the external drainage pipe through the drain outlet.

[0015] The advantages of this utility model compared with the prior art are:

[0016] 1. Highly efficient dehumidification, solving workshop environmental problems:

[0017] This invention utilizes at least two plate sensible heat exchangers, with all their steam channels connected in series, allowing the high-temperature, high-humidity steam overflowing from the steam oven to undergo multiple cooling cycles. The ambient temperature air in the workshop enters the air channels of different plate sensible heat exchangers through multiple channels. Because the air temperature is lower than the steam, the air cools the steam multiple times, effectively removing moisture and reducing its humidity. This prevents steam from spreading and condensing within the workshop, thus eliminating problems such as obstructed visibility, hygiene hazards, and safety risks caused by steam. This creates a better working environment for food production workshops, ensuring the quality and safety of food production.

[0018] 2. Optimize layout to enhance mixing effects:

[0019] The plate sensible heat exchanger and the mixing chamber are arranged side by side, with the outlet of the plate sensible heat exchanger located at one end of the mixing chamber and the outlet of the unit casing located at the other end. This layout allows the airflow to pass completely through the mixing chamber, extending the flow path. Furthermore, an L-shaped guide vane is installed inside the mixing chamber to guide the air discharged from the plate sensible heat exchanger towards one end of the mixing chamber, further improving the mixing effect and ensuring thorough mixing of steam and air for better dehumidification. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of a plate heat exchanger.

[0022] In the diagram: 1. Unit casing; 2. Steam inlet; 3. Plate sensible heat exchanger I; 4. Air inlet I; 5. Plate sensible heat exchanger II; 6. Air inlet II; 7. Water collection tray; 8. Drain outlet; 9. Air outlet; 10. L-shaped guide plate; 11. Sealing plate. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments.

[0024] The description of this utility model is merely a structural or even functional description of the embodiments, and the scope of this utility model is not limited by the embodiments described herein.

[0025] This embodiment is achieved through the following technical solution: a multi-effect regenerative dehumidifier box, which is connected to other equipment such as steam ovens in the place of use for dehumidification in food workshops.

[0026] like Figure 1 , 2 As shown, the unit casing 1 is equipped with two vertically arranged plate sensible heat exchangers, namely plate sensible heat exchanger I3 and plate sensible heat exchanger II5. Each plate sensible heat exchanger is composed of multiple layers of vertically arranged metal plates. The multiple layers of metal plates are interlaced to form two mutually perpendicular channels, which serve as the vertical steam channel and the horizontal air channel, respectively. The steam channels of all plate sensible heat exchangers are connected in series.

[0027] The top of the unit casing 1 is provided with a steam inlet 2, and the side is provided with an air inlet I4, an air inlet II6 and an air outlet 9. The air inlets correspond one-to-one with the plate sensible heat exchangers. The steam passage of the plate sensible heat exchanger connects the steam inlet 2 and the air outlet 9, and the air passage connects the air inlet and the air outlet 9.

[0028] Inside the unit casing 1, a mixing chamber is located after the plate sensible heat exchangers. Two plate sensible heat exchangers are arranged side by side with the mixing chamber. The air outlets of the plate sensible heat exchangers are located at the bottom of the mixing chamber, and the air outlet 9 of the unit casing 1 is located at the top of the mixing chamber. Inside the mixing chamber, an L-shaped guide plate 10 is provided to guide the air discharged from the plate sensible heat exchangers to one end of the mixing chamber.

[0029] A water receiving tray 7 is provided below the plate sensible heat exchanger, and the water receiving tray 7 is connected to the external drainage pipeline through the drain port 8.

[0030] Multiple sealing plates 11 are installed between the plate sensible heat exchanger and the unit shell 1 to form four enclosed areas: area A at the top, area B at the top left, area C at the bottom left, and area D at the right. Area D serves as a mixing chamber.

[0031] The dehumidification principle of this invention is as follows:

[0032] High-temperature, high-humidity steam overflowing from the steam boiler enters zone A through steam inlet 2, while ambient-temperature natural air from the workshop enters zone B through air inlet I4. The steam from zone A and the air from zone B each follow a separate path, flowing through plate sensible heat exchanger I3. Because the air temperature is lower than the steam, the air cools the steam, causing moisture to precipitate. The steam then flows downwards, while another stream of natural air from the workshop enters zone C through air inlet II6, flowing through plate sensible heat exchanger II5. Since the air temperature is still lower than the steam, the air further cools the steam, causing further moisture to precipitate. The precipitated moisture is collected in the water collection pan 7 and discharged from the unit through drain outlet 8.

[0033] The three airflows mix in zone D. The mixed air dilutes the moisture in the steam, thereby enhancing the effect of eliminating fog. The mixed gas flows out of the unit through outlet 9.

[0034] With the outlet 9 at the top and the gas flowing out of the plate sensible heat exchanger at the bottom, the extended flow path facilitates thorough mixing.

[0035] This application uses natural cold sources twice to perform multi-effect, deep dehumidification of the steam overflowing from the steam oven, avoiding safety and pollution problems caused by disorderly steam discharge, and can collect the water separated from the steam as greywater, which can be directly discharged or reused.

[0036] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A multi-effect regenerative dehumidification box, characterized in that, The unit includes a casing (1), and at least two plate sensible heat exchangers are provided inside the casing (1). The plate sensible heat exchangers are composed of multiple layers of vertically arranged metal plates. The multiple layers of metal plates are interlaced to form two mutually perpendicular channels, which serve as steam channels and air channels respectively. The steam channels of all plate sensible heat exchangers are connected in series. The unit casing (1) is provided with a steam inlet (2), an air inlet and an air outlet (9). There are multiple air inlets, which correspond one-to-one with the plate sensible heat exchangers. The steam channel of the plate sensible heat exchanger connects the steam inlet (2) and the air outlet (9), and the air channel connects the air inlet and the air outlet (9).

2. The multi-effect regenerative dehumidifier according to claim 1, characterized in that, Inside the unit casing (1), a mixing chamber is provided after the plate sensible heat exchanger.

3. The multi-effect regenerative dehumidifier according to claim 2, characterized in that, The plate sensible heat exchanger is arranged in parallel with the mixing chamber. The outlet of the plate sensible heat exchanger is located at one end of the mixing chamber, and the outlet (9) of the unit casing (1) is located at the other end of the mixing chamber.

4. The multi-effect regenerative dehumidifier according to claim 3, characterized in that, Inside the mixing chamber, there is an L-shaped guide plate (10) that can guide the air discharged from the plate sensible heat exchanger to one end of the mixing chamber.

5. The multi-effect regenerative dehumidifier according to any one of claims 1 to 4, characterized in that, The plate sensible heat exchanger is provided with a water receiving tray (7) at the bottom.

6. The multi-effect regenerative dehumidifier according to claim 5, characterized in that, The water receiving tray (7) is connected to the external drainage pipe through the drain outlet (8).

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