External circulation water diversion device of sterilization cabinet

Abstract

The utility model relates to an external circulation water diversion device of a sterilization cabinet, and belongs to the technical field of auxiliary equipment of the sterilization cabinet. The water diversion tank comprises a tank body, a water outlet is formed in the side face of the tank body, and a water inlet pipe penetrates through the tank body. The vertical height of the water inlet pipe outlet is higher than that of the water outlet; a drainage table for dispersing water flow is arranged in the water diversion tank, and the water flow introduced by the water inlet pipe can be collected into the tank body through the drainage table; a floating plate is arranged in the water diversion tank and arranged below the drainage table. After cooling water is divided, guided and blocked by the drainage table, gas in the cooling water is fully released, and meanwhile, when the pump body takes water from the water outlet, a negative pressure environment is formed in the water diversion tank, so that the gas in the cooling water is further released, the gas content of the cooling water is greatly reduced, and the probability of cavitation of the water pump is also reduced; the design of a bottom valve is omitted, the water pump can directly take water from the water diversion tank, defects caused by leakage of the bottom valve are avoided, and stable operation of the cooling system is guaranteed.

Description

Technical Field

[0001] This utility model relates to an external circulation water supply device for a sterilizer, belonging to the technical field of auxiliary equipment for sterilizers. Background Technology

[0002] As a core production equipment in the pharmaceutical industry, sterilization cabinets rely on an external water circulation system driven by a cooling water pump for operation. Existing cooling systems use a direct-suction method with pipes and bottom valves to draw water from a cooling water tank; however, this design has revealed the following technical defects in actual operation:

[0003] First, during the circulation process, cooling water is prone to mixing with gas, which flows back to the cooling water pool without being fully released. When cooling water carrying excessive gas enters the pump body, cavitation is likely to occur in the impeller area of ​​the pump, which accelerates pump wear and affects the stability of the circulation system. Second, the sealing performance of the foot valve deteriorates after long-term operation, and leakage will cause the pump to stop drawing water. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an external circulation water priming device for sterilization cabinets, which reduces the gas content in the cooling water, significantly reduces the probability of water pump cavitation, extends the service life of the water pump, and eliminates the bottom valve to ensure stable operation of the cooling system.

[0005] This utility model provides an external circulation water intake device for a sterilization cabinet, comprising: a water intake tank with a sealing cap;

[0006] The water tank includes a tank body, with an outlet on the side of the tank body and an inlet pipe running through the top of the tank body; the vertical height of the outlet of the inlet pipe is higher than that of the outlet.

[0007] The water tank is equipped with a diversion platform inside to disperse the water flow. The water introduced by the inlet pipe can be collected into the tank through the diversion platform.

[0008] The water tank is equipped with a float plate, which is placed below the diversion platform.

[0009] Furthermore, the diversion platform includes: a support cylinder, on the outer wall of which a first diversion cone and a second diversion cone are provided at intervals; the second diversion cone can collect the water flowing through the first diversion cone;

[0010] The outer edge of the second drainage cone is equipped with a baffle plate to prevent water from overflowing;

[0011] The second flow cone has a flow diversion hole on the side near the support cylinder;

[0012] The water discharged from the inlet pipe can flow alternately over the first and second drainage cones;

[0013] The first drainage cone has a protrusion.

[0014] Furthermore, a gas channel is formed between the baffle plate and the inner wall of the tank.

[0015] Furthermore, the cap is equipped with a water supply pipe, a handle, and a level gauge.

[0016] Furthermore, the floating plate is provided with several grid holes.

[0017] Furthermore, the bottom of the water tank is also equipped with several support legs.

[0018] The advantages of this utility model compared with the prior art are:

[0019] After the cooling water is distributed and blocked by the diversion platform, the gas in it is fully released. At the same time, when the pump draws water from the outlet, a negative pressure environment is formed inside the water tank, which further releases the gas in the cooling water. The gas content of the cooling water is greatly reduced, and the probability of water pump cavitation is reduced. The foot valve design is eliminated, and the water pump can draw water directly from the water tank, avoiding the disadvantages caused by foot valve leakage and ensuring the stable operation of the cooling system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an external circulating water device for a sterilizer according to this utility model;

[0021] Figure 2 This is a first cross-sectional view of the external circulation water supply device for a sterilizer according to this utility model.

[0022] Figure 3 yes Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 4 This is a second cross-sectional view of the external circulation water supply device for a sterilization cabinet according to this utility model.

[0024] In the picture:

[0025] 1. Water tank; 101. Tank body; 102. Water outlet; 103. Support leg; 104. Water inlet pipe;

[0026] 2. Cap; 201. Water supply pipe; 202. Handle; 203. Level gauge;

[0027] 3. Drainage platform; 301. Support cylinder; 302. First drainage cone; 303. Protrusion; 304. Baffle plate; 305. Second drainage cone; 306. Diversion hole;

[0028] 4. Floating plate; 401. Grille openings;

[0029] 5. Gas passage. Detailed Implementation

[0030] like Figures 1-4 As shown, this embodiment is achieved through the following technical solution: a cover 2 is provided on the water tank 1; a sealing ring is provided between the water tank 1 and the cover 2.

[0031] The water tank 1 includes a tank body 101, with an outlet 102 on the side of the tank body 101 and an inlet pipe 104 passing through the top of the tank body 101; the vertical height of the outlet of the inlet pipe 104 is higher than that of the outlet 102.

[0032] The water tank 1 is equipped with a diversion platform 3 for dispersing water flow. The water flow introduced by the water inlet pipe 104 can be collected into the tank body 101 through the diversion platform 3.

[0033] The water tank 1 is equipped with a float plate 4, which is placed below the diversion platform 3.

[0034] Specifically, the diversion platform 3 includes a support cylinder 301, on the outer wall of the support cylinder 301, a first diversion cone 302 and a second diversion cone 305 are provided in layers at intervals; the second diversion cone 305 can collect the water flowing through the first diversion cone 302.

[0035] The outlet 102 is connected to the inlet pipe of the cooling water pump.

[0036] The outer edge of the second drainage cone 305 is provided with a baffle plate 304 to prevent water from overflowing.

[0037] The second diversion cone 305 has a diversion hole 306 on the side near the support cylinder 301.

[0038] The water discharged from the inlet pipe 104 can flow alternately over the first drainage cone 302 and the second drainage cone 305.

[0039] The first diversion cone 302 is provided with a protrusion 303, which enhances the obstruction effect on the water flow and disturbs the water flow so that the gas inside can be fully released.

[0040] In this embodiment, the support cylinder 301 is sleeved on the water inlet pipe 104, such as Figure 3 As shown; the cooling water discharged from the inlet pipe 104 flows down from the top of the diversion platform 3.

[0041] Specifically, the baffle plate 304 and the inner wall of the tank 101 form a gas channel 5; the gas released from the cooling water at the bottom of the water tank 1 can be collected along the gas channel 5 into the upper space of the water tank 1.

[0042] Specifically, the cover 2 is equipped with a water supply pipe 201, a handle 202 and a level gauge 203; preferably, the probe of the level gauge 203 can pass through the gas channel 5 and the grid hole 401, so as to realize the detection of the liquid level of the water tank 1 by the level gauge 203.

[0043] Specifically, the float plate 4 is provided with several grid holes 401; in this embodiment, the float plate 4 is made of foam material and is fitted onto the water inlet pipe 104. As the water level changes, the float plate 4 can move up and down along the outer wall of the water inlet pipe 104. The grid holes 401 divide the cooling water surface into several small liquid surfaces, reducing the overall correlation of the liquid surface and ensuring the stability of the liquid surface; at the same time, the gas in the cooling water can also be released outward through the grid holes 401.

[0044] Specifically, the bottom of the water tank 1 is also equipped with several support legs 103.

[0045] The specific working principle of this utility model is as follows:

[0046] Before the cooling water pump is started, water is first injected into the water tank 1 through the water supply pipe 201. Once the water level meets the circulation requirements, the cooling water pump can be started. The pump body draws water from the outlet 102 and creates a negative pressure in the water tank 1. Under the action of the negative pressure, external cooling water is continuously drawn into the water tank 1 from the inlet pipe 104, forming a cooling water circulation.

[0047] After cooling water enters the water tank 1 through the inlet pipe 104, it passes sequentially through the first guide cone 302 and the second guide cone 305 under the action of gravity. The protrusions 303 on the surface of the first guide cone form multi-stage obstruction of the water flow, and the collision disturbance causes the gas in the water to be released. The second guide cone 305 restricts the diffusion of the water flow through the baffle plate 304. The water flow passes through the diversion hole 306 and enters the next stage of the first guide cone 302 and the second guide cone 305, and is diverted again to release the gas. The water flow after the stepped treatment finally flows into the bottom of the tank 101. The float plate 4 floats on the surface of the cooling water to reduce the fluctuation amplitude of the cooling water surface and prevent a large amount of gas from being re-mixed in after the cooling water surface fluctuates violently.

[0048] After the cooling water is treated by the diversion platform 3 and the float plate 4, the gas content is greatly reduced, which can effectively reduce the probability of water pump cavitation.

[0049] 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 sterilizer external circulation water supply device, characterized in that, include: Water tank (1), and a cover (2) is provided on the water tank (1); The water tank (1) includes a tank body (101), an outlet (102) is provided on the side of the tank body (101), and an inlet pipe (104) is provided on the top of the tank body (101); the vertical height of the outlet of the inlet pipe (104) is higher than that of the outlet (102); The water tank (1) is equipped with a diversion platform (3) for dispersing water flow. The water flow introduced by the water inlet pipe (104) can be collected into the tank body (101) through the diversion platform (3); The water tank (1) is equipped with a float plate (4), which is located below the diversion platform (3).

2. The external circulation water supply device for a sterilizer according to claim 1, characterized in that, The diversion platform (3) includes: a support cylinder (301), on the outer wall of the support cylinder (301) are a first diversion cone (302) and a second diversion cone (305) arranged in layers at intervals; the second diversion cone (305) can collect the water flowing through the first diversion cone (302); The outer edge of the second drainage cone (305) is provided with a baffle plate (304) to prevent water from overflowing; The second drainage cone (305) has a diversion hole (306) on the side near the support cylinder (301); The water discharged from the inlet pipe (104) can flow alternately over the first drainage cone (302) and the second drainage cone (305); The first drainage cone (302) is provided with a protrusion (303).

3. The external circulating water device for a sterilizer according to claim 2, characterized in that, A gas passage (5) is formed between the baffle plate (304) and the inner wall of the tank (101).

4. The external circulating water device for a sterilizer according to claim 1, characterized in that, The cap (2) is equipped with a water supply pipe (201), a handle (202) and a level gauge (203).

5. The external circulating water device for a sterilizer according to claim 4, characterized in that, The float (4) is provided with several grid holes (401).

6. The external circulating water device for a sterilizer according to claim 4, characterized in that, The bottom of the water tank (1) is also equipped with several support legs (103).

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