CN204637235U - There is the small size water tank of circulative convection structure - Google Patents

Abstract

A small-area water tank with a circular convection structure, including a main body of the water tank, with an air inlet connected to the inside of the water tank, the top of the water tank is an upper cover, and the upper cover has an air outlet. The space is the upwind area, and the space below the partition is the downwind area; the air inlet is located on the side wall of the water tank in the downwind area, and the air inlet and outlet have extensions in the box, and the upper part of the two extensions is separated by the partition, and the middle part of the partition is opened. , the extension section of the air outlet extends into the water tank through the opening, and the diversion holes are arranged on the partition plate relative to the periphery of the air outlet to generate convective circulation.

Description

Small area water tank with circulating convection structure

technical field

The utility model relates to a humidification water tank, which provides a small-area water tank with a circular convection structure, and improves the humidification performance of the existing small-area water tank.

Background technique

At present, the traditional water tank humidification method is to increase the surface area of the water body, which increases the overall size of the water tank, so the traditional water tank is basically a large-area water tank. Due to the large surface area of the water body, the large-area water tank increases the overall volume of the equipment and reduces the convenience of transportation. However, the humidification performance of small-area water tanks is insufficient, so how to improve the humidification performance without increasing the surface area of the water body of the water tank while maintaining convenience in transportation has become a difficult problem in this industry.

A small-area water tank needs to increase the contact time between the gas and the water surface. It generally consists of the main body of the water tank, a partition and a top cover of the water tank. Among them, there are two ways to lengthen the flow channel. One is to add a drainage partition from the inlet to the outlet The distance between the air port and the air inlet is the longest. For example, ZL02804936.5 has a humidifier with a structure that prevents liquid from flowing back through the humidifier inlet. It provides a solution to increase the humidification of the water tank by using a diversion plate; The gas at the air port is divided into multiple strands by a partition, and multiple streams are produced on the water surface. The water body surface area of the water tank is relatively large, such as the humidifier tank of the CN302073032 respirator. The gas enters the bottom of the water tank from top to bottom on the upper surface, and then The air flows into the air outlet from the periphery of the middle partition, and increases the humidification through contact with the large surface of the water body. The above two typical humidification methods for small-area water tanks will cause two problems. One is that traditional water tanks rely on gas to remove water vapor from the surface of the water body, and the humidification efficiency is relatively low, especially when the wind pressure is high, the gas flow rate is relatively fast. Humidification is low; the other is that due to the lengthening of the gas flow channel, the partition structure inside the water tank is complicated, which will also lead to an increase in airflow resistance.

Utility model content

The purpose of this utility model is to provide a small-area water tank with reasonable structure, small pressure loss and high humidification performance in view of the deficiencies of the prior art. The humidification performance is improved by adopting a diversion guide to generate circular convection. The specific technical scheme is as follows:

A small-area water tank with a circular convection structure, including a main body of the water tank, with an air inlet connected to the inside of the water tank, the top of the water tank is an upper cover, and the upper cover has an air outlet. The space is the upwind area, and the space below the partition is the downwind area; the air inlet is located on the side wall of the water tank in the downwind area, and the air inlet and outlet have extensions in the box, and the upper part of the two extensions is separated by the partition, and the middle part of the partition is opened. , the extension section of the air outlet extends into the water tank through the opening, and the diversion holes that can generate convective circulation are distributed on the partition plate relative to the periphery of the air outlet.

Further, at least two guide holes are distributed on the partition, the extension section of the air outlet has a guide opening, and the direction of the opening faces the side of the air inlet, and the two guide holes are located on the back of the guide opening of the air outlet.

Further, the diversion hole is in the shape of a hollow column as a whole, and the bottom slope is opened to form a wind guide structure, which is connected to the water tank in the downwind area.

Further, the extension section of the air inlet has an air guide baffle, and the slope openings of any two air guide holes face any intersection point of the area between the two air guide holes. The openings of the inclined planes of the first and second diversion holes face one intersection point, and the inclined plane openings of the second and third diversion holes face another intersection point.

Furthermore, from the upper end of the air outlet to the partition, the opening gradually converges from top to bottom, forming an air guide structure with a trapezoidal longitudinal section.

Further, the clapboard is integrated with the buckle of the water tank through the upper cover of the water tank, and a sealing rubber ring is provided at the junction of the clapboard and the water tank.

The small-area water tank with a circular convection structure of the utility model determines the distribution positions of the three diversion holes according to the intersection and interference routes of the airflows. The airflow passes through the three diversion holes on the partition to generate two interfering airflows in the downwind area. At any point in the area between the first and second diversion holes, and at any point in the area between the third and second diversion holes, the air pressure in these two areas is significantly higher than that in other areas, and the airflow is small. There is an obvious pressure difference in the area, which causes the airflow circulation in the small area to be enhanced. The intersection and interference point of the airflow must be in the bottom edge area of the water tank. The smaller the area of the diversion hole, the greater the airflow intensity at the airflow intersection point, and the closer the airflow intersection point is. The greater the temperature difference in the edge area of the bottom of the water tank, the greater the intensity of the resulting air circulation convection. It can significantly improve the humidification effect of the water tank, simplify the structure of the internal partition of the water tank, and reduce the pressure drop in the water tank, especially suitable for the humidification of small-area water tanks.

The utility model effectively simplifies the structure of the air guide plate inside the water tank by designing three diversion hole structures based on the airflow flow line; under the same humidification performance, the utility model adopts the water tank structure of the utility model, and the height and length of the air guide structure are the same as Compared with the water tank partition of the traditional humidification method, it can also be greatly shortened by more than 50%, and the surface area of the water body in the water tank can be reduced by more than 30% compared with the water body surface area of the existing water tank; in summary, the humidification of the water tank structure of the utility model Compared with the existing water tank, the improvement is remarkable.

Description of drawings

Fig. 1 is the air flow circuit diagram of the water tank that adopts diversion plate mode in the prior art;

Fig. 2-4 is the gas flow circuit diagram of the water tank that adopts the method of increasing the surface area of the water body in the prior art. The gas is on the upper surface, enters the bottom of the water tank from top to bottom, then flows into the air outlet from around the middle partition, and passes through the water body. Large surface contact for increased humidification;

Fig. 5 is a schematic diagram of the overall structure of the water tank adopting the diversion hole mode in the specific embodiment of the present invention;

Fig. 6 is the structural front view of the water tank adopting the diversion hole mode in the specific embodiment of the present invention;

Fig. 7 is the A-A sectional view of Fig. 6, shows the air flow circuit;

Fig. 8 is a top view of a partition in a specific embodiment of the present invention;

Fig. 9 is a graph of the water consumption of the small-area water tank of the present invention under different wind pressure values and the water consumption of the traditional water tank.

In the figure: 1-air inlet, 2-air guide partition, 3-top cover, 4-air outlet, 5-partition-, 6-water tank main body, 7-chassis, 8-first air guide hole, 9- The second diversion hole, 10-the third diversion hole.

Detailed ways

Utilize accompanying drawing and specific embodiment below to further illustrate the utility model.

A preferred embodiment, referring to Figure 5-8, the small-area water tank of the present invention uses diversion holes to improve humidification, including a chassis 7, a water tank main body 6, an air inlet 1, connected to the inside of the water tank, and the top of the water tank is an upper cover 3. The upper cover 3 has an air outlet 4. There is a partition 5 inside the water tank. The space between the partition 5 and the upper cover 3 is the upwind area, and the space below the partition 5 is the downwind area; the air inlet 1 is located on the side wall of the water tank in the downwind area. 1 and the air outlet 4 have an extension section in the box, the upper part of the two extension sections is separated by a partition 5, the middle part of the partition 5 has a hole, the extension section of the air outlet 4 passes through the opening and extends into the water tank, and the partition 5 is opposite to each other. Around the air outlet 4 are distributed 3 diversion holes that can generate convection circulation.

Among them, the first air guide hole 8 and the third air guide hole 10 are distributed on both sides of the air outlet 4, and the line connecting the axis of the second air guide hole 9 and the axis of the air outlet 4 is between the axis of the first air guide hole 8 and the second air outlet. Between the lines connecting the axes of the three diversion holes 10; the diversion holes are in the shape of a hollow column as a whole, with a sloped opening at the bottom to form an air guide structure, which is connected to the water tank in the downwind area. The extension of the air inlet 1 is the air guide partition 2, and the opening faces the side of the water tank wall, the first diversion hole 8 and the second diversion hole 9 are inclined to the intersection between the two holes, the second diversion hole 9 and the third diversion hole 10 are inclined to the intersection between the two holes, and the air outlet 4 is located at In the center of the upper cover 3, three diversion holes and the air inlet 1 are distributed around the air outlet 4.

From the upper end of the air outlet 4 to the partition 5, the opening gradually converges from top to bottom to form a trapezoidal air guide structure in longitudinal section; With sealing rubber ring.

With the diversion hole of the utility model, in the downwind area, a pressure difference and a temperature difference are generated, so that the water surface in the water tank produces a strong circulation convection, which can provide warming and humidifying water vapor for the user's respiratory treatment; refer to Figure 9, the same conditions The water consumption comparison chart of water tanks with different humidification methods is shown below. The upper curve is the water consumption curve of the specific embodiment of the utility model, and the lower curve is the water consumption curve of the water tank in the prior art using diversion baffles. The middle curve is the water consumption curve of the prior art. The water consumption curve of the water tank adopting the method of increasing the surface area of the water body, it can be seen from the above that the humidification performance of the utility model is significantly improved compared with that of the existing water tank.

Claims (5)

1. A small-area water tank with a circular convection structure, comprising a main body of the water tank with an air inlet connected to the inside of the water tank, the top of the water tank is an upper cover, and the upper cover has an air outlet. The space up to the upper cover is the upwind area, and the space below the partition is the downwind area; the air inlet and the air outlet have extension sections in the box, and the upper part of the two extension sections is separated by a partition, and the middle part of the partition has a hole, and the extension section of the air outlet passes through The opening extends into the water tank, and the diversion holes that can generate convection circulation are distributed on the dividing plate relative to the periphery of the air outlet. 2. The small-area water tank with circular convection structure according to claim 1, characterized in that: at least two diversion holes are distributed on the partition, the extension section of the air outlet has a guide opening, and the direction of the opening is toward the side of the air inlet. The first air guide hole is located on the back of the air outlet guide opening. 3. The small-area water tank with circular convection structure according to claim 2, characterized in that: the diversion hole is in the shape of a hollow column as a whole, and the slope at the bottom is opened to form a wind guide structure and communicate with the water tank in the downwind area. 4. The small-area water tank with circulating convection structure according to claim 2, characterized in that: the extension section of the air inlet has an air guide partition, and any two guide hole slope openings face any part of the area between the two guide holes. One intersection. 5. The small-area water tank with circular convection structure according to claim 2, characterized in that: the upper end of the air outlet reaches the partition, and the opening gradually converges from top to bottom to form a trapezoidal air guide structure in longitudinal section.