Water circulation device of water bath sterilization cabinet

Abstract

The utility model discloses a water circulation device of a water bath sterilization cabinet, which relates to the technical field of water bath sterilization and comprises a sterilization cabinet body, one side of the upper wall of the sterilization cabinet body is communicated and connected with a colored water input pipeline, and the colored water input pipeline is provided with a colored water input valve. The other side of the upper wall of the sterilization cabinet body is communicated and connected with a circulating water input pipeline, a circulating water input valve is arranged on the circulating water input pipeline, a filtering tank body is arranged outside the other side of the sterilization cabinet body, and the input end of the filtering tank body is communicated and connected with a purified water input pipeline; a purified water input pipeline is arranged at the lower end of the sterilization cabinet body, a purified water input valve is arranged on the purified water input pipeline, an output pipeline is arranged at the lower end of the sterilization cabinet body, an output valve is arranged on the output pipeline, a circulating pipeline is communicated and connected between the output pipeline and the purified water input pipeline, and purified water and sterilization water are circularly filtered before input. The stability of the cleanliness of the sterilized water during use is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water bath sterilization, in particular to a water circulation device for a water bath sterilization cabinet. Background Art

[0002] A water bath sterilization cabinet is a disinfection and sterilization device used for high-temperature sterilization of experimental instruments, culture media, drugs, etc. Its working principle is to place the items in a sealed cabinet body, and then heat the water in the water bath to generate steam, and use the high temperature of the steam (usually about 121°C) to kill bacteria, viruses and other microorganisms. At present, the water bath sterilization cabinet is usually equipped with a water circulation device. However, after long-term use, impurities inevitably appear in the sterilization cabinet. The traditional purification method for the sterilization cabinet is to wait for the sterilized water to be discharged and then purify the inside of the sterilization cabinet. During daily use, the cleanliness of the sterilized water is unstable. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a water circulation device for a water bath sterilization cabinet to solve the problem that the current water bath sterilization cabinet is usually equipped with a water circulation device, but after long-term use, impurities inevitably appear in the sterilization cabinet. The traditional purification method for the sterilization cabinet is to wait for the sterilized water to be discharged and then purify the inside of the sterilization cabinet. During daily use, the cleanliness of the sterilized water is unstable as mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A water circulation device for a water bath sterilization cabinet, including a sterilization cabinet body. One side of the upper wall of the sterilization cabinet body is connected in communication with a colored water input pipeline, and a colored water input valve is arranged on the colored water input pipeline. The other side of the upper wall of the sterilization cabinet body is connected in communication with a circulating water input pipeline, and a circulating water input valve is arranged on the circulating water input pipeline. The outside of the other side of the sterilization cabinet body is provided with a filter tank body. The output end of the filter tank body is connected in communication with the circulating water input pipeline. The input end of the filter tank body is connected in communication with a purified water input pipeline, and a purified water input valve is arranged on the purified water input pipeline. The lower end of the sterilization cabinet body is provided with an output pipeline, and an output valve is arranged on the output pipeline. A circulating pipeline is connected in communication between the output pipeline and the purified water input pipeline, and a circulating valve and a circulating pump are respectively arranged on the circulating pipeline.

[0005] Preferably, two filter elements are respectively arranged on both sides inside the filter tank body. The two filter elements are respectively arranged corresponding to the circulating water input pipeline and the purified water input pipeline. A partition board is arranged inside the filter tank body and between the two filter elements. A through hole is opened at the lower end of the partition board. Sealing covers are arranged at the lower ends of the two filter elements, and the sealing covers are hermetically connected to the lower end of the filter tank body through threads.

[0006] Preferably, the upper end of the circulation pipeline is connected to the purified water input pipeline between the filter tank body and the purified water input valve, and the lower end of the circulation pipeline is connected to the output pipeline between the sterilization cabinet body and the output valve.

[0007] Preferably, a pressure relief valve is provided on the upper surface of the sterilization cabinet body between the colored water input pipeline and the circulating water input pipeline.

[0008] Preferably, a sealing door is provided on the front wall of the sterilization cabinet body.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: Currently, water bath sterilization cabinets are usually equipped with a water circulation device. However, after long-term use, impurities inevitably appear in the sterilization cabinet. Instead of the traditional sterilization cabinet purification method of waiting for the sterilized water to be drained and then purifying the inside of the sterilization cabinet, the purified water before input and the sterilized water are circulated and filtered to ensure the stability of the cleanliness of the sterilized water during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is an isometric view of the main structure of the present utility model;

[0011] Figure 2 is a front view sectional view of the main structure of the present utility model;

[0012] Figure 3 is a front view schematic diagram of the main structure of the present utility model;

[0013] Figure 4 is a top view schematic diagram of the main structure of the present utility model;

[0014] Figure 5 is an isometric sectional view of the filter tank structure of the present utility model.

[0015] In the figure: 1 - sterilization cabinet body, 2 - colored water input pipeline, 3 - colored water input valve, 4 - circulating water input pipeline, 5 - circulating water input valve, 6 - filter tank body, 7 - purified water input pipeline, 8 - purified water input valve, 9 - output pipeline, 10 - output valve, 11 - circulation pipeline, 12 - circulation valve, 13 - filter element, 14 - partition board, 15 - through port, 16 - sealing cover, 17 - pressure relief valve, 18 - sealing door, 19 - circulation pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figures 1-5 , the present invention provides a water circulation device for a water bath sterilization cabinet, including a sterilization cabinet body 1. One side of the upper wall of the sterilization cabinet body 1 is connected in communication with a colored water input pipe 2, and a colored water input valve 3 is provided on the colored water input pipe 2. The other side of the upper wall of the sterilization cabinet body 1 is connected in communication with a circulating water input pipe 4, and a circulating water input valve 5 is provided on the circulating water input pipe 4. A filter tank body 6 is arranged outside the other side of the sterilization cabinet body 1. The output end of the filter tank body 6 is connected in communication with the circulating water input pipe 4. The input end of the filter tank body 6 is connected in communication with a pure water input pipe 7, and a pure water input valve 8 is provided on the pure water input pipe 7. The lower end of the sterilization cabinet body 1 is provided with an output pipe 9, and an output valve 10 is provided on the output pipe 9. A circulating pipe 11 is connected in communication between the output pipe 9 and the pure water input pipe 7, and a circulating valve 12 and a circulating pump 19 are respectively provided on the circulating pipe 11.

[0018] During use, pure water is input into the interior of the filter tank body 6 through the pure water input pipe 7, and the input of pure water is controlled through the pure water input valve 8. The input pure water is filtered by the filter tank body 6. The circulating water input valve 5 is opened, and the filtered pure water is input into the interior of the sterilization cabinet body 1 through the circulating water input pipe 4. The pure water inside the sterilization cabinet body 1 is heated by an external heating device to reach the sterilization temperature requirement. Subsequently, colored water is input into the interior of the sterilization cabinet body 1 through the colored water input pipe 2, and the input of colored water is controlled through the colored water input valve 3. At this time, the liquid temperature inside the sterilization cabinet body 1 drops, and the liquid is continuously heated by the external heating device to reach the sterilization temperature requirement. At this time, the sterilization operation is continuously carried out. The pure water input valve 8 and the colored water input valve 3 are closed to stop the input of pure water and colored water. The output valve 10 is closed, the circulating valve 12 and the circulating pump 19 are opened. Under the action of the circulating pump 19, the liquid inside the sterilization cabinet body 1 is input into the interior of the filter tank body 6 through the output pipe 9 and the circulating pipe 11. The liquid is filtered by the filter tank body 6, and the filtered liquid is circulated into the interior of the sterilization cabinet body 1 through the circulating water input pipe 4. After the sterilization operation is completed, the colored water input valve 3, the circulating water input valve 5, the pure water input valve 8 and the circulating valve 12 are closed, the output valve 10 is opened, and the liquid is output externally through the output pipe 9.

[0019] On both sides inside the filter tank body 6, two filter elements 13 are respectively provided. The two filter elements 13 are respectively arranged corresponding to the circulating water input pipeline 4 and the purified water input pipeline 7. Inside the filter tank body 6 and between the two filter elements 13, a partition plate 14 is provided. A through opening 15 is opened at the lower end of the partition plate 14. Sealing covers 16 are provided at the lower ends of the two filter elements 13. The sealing covers 16 are hermetically connected to the lower end of the filter tank body 6 by threads. A partition plate 14 is arranged inside the filter tank body 1, and a through opening 15 is opened at the lower end of the partition plate 14. The liquid input into the inside of the filter tank body 6 first enters the inside of one filter element 13 for filtration, and then enters the inside of the other filter element 13 for filtration through the through opening 15. The two filter elements 13 are hermetically connected to the inside of the filter tank body 1 through the sealing covers 16.

[0020] The upper end of the circulating pipeline 11 is connected in communication to the purified water input pipeline 7 and is between the filter tank body 6 and the purified water input valve 8. When the purified water input valve 8 is closed, the circulating liquid will not flow backward in the direction of the purified water input valve 8. The lower end of the circulating pipeline 11 is connected in communication to the output pipeline 9 and is between the sterilization cabinet body 1 and the output valve 10. When the circulating valve 12 is closed, the output liquid will not flow backward in the direction of the circulating valve 12.

[0021] A pressure relief valve 17 is provided on the upper surface of the sterilization cabinet body 1 and between the colored water input pipeline 2 and the circulating water input pipeline 4. When liquid is input into the inside of the sterilization cabinet body 1, the pressure inside the sterilization cabinet body 1 is released to the outside.

[0022] A sealing door 18 is provided on the front wall of the sterilization cabinet body 1. Through the sealing door 18, materials to be sterilized can be placed inside the sterilization cabinet body 1.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water circulation device for a water bath sterilizer, characterized in that: The invention comprises a sterilizing cabinet (1), wherein one side of the upper wall of the sterilizing cabinet (1) is connected to a colored water input pipe (2), and a colored water input valve (3) is provided on the colored water input pipe (2); the other side of the upper wall of the sterilizing cabinet (1) is connected to a circulating water input pipe (4), and a circulating water input valve (5) is provided on the circulating water input pipe (4); a filtering tank (6) is provided on the other side of the sterilizing cabinet (1), and the output end of the filtering tank (6) is connected to the circulating water input pipe (4). The input end of the filter tank (6) is connected to a pure water input pipe (7), and a pure water input valve (8) is provided on the pure water input pipe (7). The lower end of the sterilizing cabinet (1) is provided with an output pipe (9), and an output valve (10) is provided on the output pipe (9). A circulation pipe (11) is connected between the output pipe (9) and the pure water input pipe (7), and a circulation valve (12) and a circulation pump (19) are provided on the circulation pipe (11).

2. A water circulation device for a water bath sterilizer according to claim 1, characterized in that: Two filter elements (13) are respectively arranged on both sides of the interior of the filter tank body (6), and the two filter elements (13) are respectively arranged corresponding to the circulating water input pipe (4) and the pure water input pipe (7). A partition (14) is arranged inside the filter tank body (6) and between the two filter elements (13), and a through opening (15) is opened at the lower end of the partition (14). The lower ends of the two filter elements (13) are both provided with sealing covers (16), and the sealing covers (16) are sealed and connected to the lower end of the filter tank body (6) through threads.

3. A water circulation device for a water bath sterilizer according to claim 1, characterized in that: The upper end of the circulation pipe (11) is connected to the pure water input pipe (7) and between the filter tank (6) and the pure water input valve (8), and the lower end of the circulation pipe (11) is connected to the output pipe (9) and between the sterilization cabinet (1) and the output valve (10).

4. A water circulation device for a water bath sterilizer according to claim 1, characterized in that: A pressure relief valve (17) is provided on the upper surface of the sterilizing cabinet (1) and between the colored water input pipe (2) and the circulating water input pipe (4).

5. The water circulation device for a water bath sterilizer according to claim 1, characterized in that: The front wall of the sterilizing cabinet (1) is provided with a sealing door (18).

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