Hydrogen peroxide sterilizer gas tank drainage device
By introducing a temperature sensor and heating device into the gas storage tank drainage system, combined with a PLC controller, the problem of liquid condensation and blockage in low-temperature environments is solved, realizing automated drainage of the gas storage tank and stable supply of hydrogen peroxide, thus meeting the needs of sterilization machines in low-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHONGKE RUIDA HEALTH TECH CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-28
AI Technical Summary
The existing gas storage tank drainage device lacks a heating structure in low-temperature environments, causing the liquid to condense into ice in the drainage pipe, clogging the pipe and affecting the gas pressure balance and the stability of hydrogen peroxide atomization injection.
A drainage device comprising a drain pipe, a solenoid one-way valve, a temperature sensor, an insulation pipe, and a heating screw was designed. It prevents liquid condensation through temperature monitoring and automatic heating, achieves intelligent drainage and temperature control by combining with a PLC controller, and is equipped with a neutralization mechanism to handle residual hydrogen peroxide liquid.
It effectively prevents liquid freezing and blockage, ensures gas pressure stability and hydrogen peroxide atomization stability, reduces manual intervention, adapts to automation needs, meets environmental protection requirements, and reduces maintenance costs.
Smart Images

Figure CN224567165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas storage tank technology, and in particular to a drainage device for a hydrogen peroxide sterilizer gas storage tank. Background Technology
[0002] The hydrogen peroxide sterilizer's gas tank drainage device is a core auxiliary component designed specifically for the gas tank of a hydrogen peroxide sterilizer to automatically or manually drain condensate and residual liquid from the tank. Its core function is to solve the problem of condensate accumulation caused by temperature changes, gas humidity, and other factors during the storage of compressed gas in the gas tank, thus avoiding affecting the sterilization effect, damaging the equipment, or causing safety hazards.
[0003] To address the aforementioned issues, existing patents offer solutions. However, existing gas tank drainage devices lack a structure for heating the drainage pipe. Consequently, in winter workshops, cold storage facilities, and outdoor low-temperature disinfection scenarios, when the liquid discharged from the gas tank flows through the drainage pipe, it rapidly cools to below freezing due to the lack of heating and insulation measures. The liquid condenses into ice on the inner wall of the drainage pipe, initially reducing the pipe's inner diameter and slowing the drainage flow. As the ice layer thickens, it eventually completely blocks the drainage pipe, preventing the liquid from draining and forcing it to accumulate at the bottom of the gas tank. This, in turn, increases the pressure inside the gas tank, disrupting the original pressure balance and affecting the stability of hydrogen peroxide atomization spray.
[0004] To address this, a drainage device for the storage tank of a hydrogen peroxide sterilizer is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a drainage device for the storage tank of a hydrogen peroxide sterilizer. This device addresses the problem that existing storage tanks lack a structure for heating the drain pipe. Consequently, in low-temperature sterilization scenarios such as workshops, cold storage facilities, and outdoor environments during winter, the liquid discharged from the storage tank flows through the drain pipe. Due to the lack of heating and insulation measures, the liquid quickly cools to below freezing point due to the low ambient temperature. The liquid condenses into ice on the inner wall of the drain pipe, initially reducing the pipe's inner diameter and slowing the drainage flow. As the ice layer thickens, it eventually completely blocks the drain pipe, preventing the liquid from draining and forcing it to accumulate at the bottom of the storage tank. This, in turn, increases the pressure inside the storage tank, disrupts the original pressure balance, and affects the stability of hydrogen peroxide atomization spray.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a drainage device for a hydrogen peroxide sterilizer's gas storage tank, comprising a gas storage tank body, a drainage mechanism fixedly connected to the bottom of the gas storage tank body, a neutralization mechanism fixedly connected to the bottom of the drainage mechanism, the drainage mechanism comprising a drain pipe, an electromagnetic one-way valve, a temperature sensor, an insulation pipe, and a heating screw, the drain pipe being fixedly connected to the bottom of the gas storage tank body, the electromagnetic one-way valve being installed at the bottom of the drain pipe, the temperature sensor being installed on the right side of the drain pipe, the detection end of the temperature sensor on the left side penetrating and extending to the inside of the drain pipe, the insulation pipe being welded to the surface of the drain pipe, and the heating screw being installed on the inner wall of the insulation pipe.
[0007] Preferably, the neutralization mechanism includes a mounting shell, a filling pipe, a PLC controller, and a neutralization tank, with the mounting shell fixedly connected to the bottom of the drain pipe.
[0008] Preferably, the filling pipe is fixedly connected to the rear side of the top of the mounting housing, and the PLC controller is installed on the front side of the top of the mounting housing.
[0009] Preferably, the PLC controller is electrically connected to the solenoid one-way valve, temperature sensor and heating screw, and the neutralization tank is movably connected to the inside of the mounting shell.
[0010] Preferably, the neutralization tank has a transparent observation window on its front side, and the transparent observation window is made of transparent acrylic sheet.
[0011] Preferably, a support column is welded to the bottom of the mounting shell, and a shock-absorbing pad is fixedly connected to the bottom of the support column. The bottom of the shock-absorbing pad is engraved with anti-slip texture.
[0012] Preferably, the surface of the insulation pipe is covered with an insulation cotton pad, which is made of aluminum silicate material.
[0013] Preferably, a filter ring is movably connected to the top of the inner side of the neutralization tank, and the surface of the filter ring is coated with an anti-corrosion coating.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The drainage mechanism of this application is directly connected to the bottom of the gas storage tank through a drainage pipe, which can drain the condensate and hydrogen peroxide residue deposited in the tank. This avoids problems such as pressure imbalance and equipment corrosion caused by liquid accumulation in the tank from the source, and ensures the stability of gas supply to the gas storage tank. The electromagnetic single-way valve realizes the automatic opening and closing of the drainage channel through electric control. With the linkage logic of the PLC controller, the drainage operation can be completed without manual intervention, which is suitable for the automated operation requirements of the sterilization machine and reduces the cost of manual maintenance. The heating screw and temperature sensor can monitor the temperature in the drainage pipe in real time and heat it as needed, effectively preventing the liquid from freezing and blocking the pipe at low temperature or the crystallization of hydrogen peroxide residue, and ensuring smooth drainage.
[0016] 2. The neutralization tank in the neutralization mechanism of this application can centrally collect the discharged liquid, add neutralizing agent through the injection pipe, quickly neutralize the corrosiveness of hydrogen peroxide, so that the wastewater meets the discharge standards, avoids direct discharge and pollution to the environment, and meets the environmental protection requirements of medical, pharmaceutical and other scenarios. The PLC controller can link and control the electromagnetic single-way valve, heating screw and sensor to realize integrated intelligent control of drainage, heating and neutralization, improve the stability of system operation and reduce human operation error. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the drainage device for the hydrogen peroxide sterilizer's gas storage tank according to this utility model.
[0018] Figure 2 This is a schematic diagram of the drainage mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the mounting shell of this utility model;
[0020] Figure 4 This is a schematic diagram of the filling tube of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the filter ring of this utility model.
[0022] In the diagram, 1. Gas storage tank body; 2. Drainage mechanism; 21. Drainage pipe; 22. Electromagnetic one-way valve; 23. Temperature sensor; 24. Insulation pipe; 25. Heating screw; 3. Neutralization mechanism; 31. Mounting shell; 32. Filling pipe; 33. PLC controller; 34. Neutralization tank; 4. Transparent observation window; 5. Support column; 6. Shock-absorbing pad; 7. Insulation cotton pad; 8. Filter ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-5 The present invention provides the following technical solution:
[0025] A drainage device for a hydrogen peroxide sterilizer's gas storage tank includes a gas storage tank body 1. A drainage mechanism 2 is fixedly connected to the bottom of the gas storage tank body 1, and a neutralization mechanism 3 is fixedly connected to the bottom of the drainage mechanism 2. The drainage mechanism 2 includes a drain pipe 21, an electromagnetic one-way valve 22, a temperature sensor 23, an insulation pipe 24, and a heating screw 25. The drain pipe 21 is fixedly connected to the bottom of the gas storage tank body 1. The electromagnetic one-way valve 22 is installed at the bottom of the drain pipe 21. The temperature sensor 23 is installed on the right side of the drain pipe 21. The detection end of the temperature sensor 23 on the left side penetrates and extends to the inside of the drain pipe 21. The insulation pipe 24 is welded to the surface of the drain pipe 21, and the heating screw 25 is installed on the inner wall of the insulation pipe 24.
[0026] In this embodiment: By setting the gas storage tank body 1 as the core component for storing compressed gas, a stable gas source is provided for the hydrogen peroxide sterilizer, ensuring the continuity of gas supply and pressure stability during the sterilization process. At the same time, it provides a space basis for the natural sedimentation of liquid. The drain pipe 21 serves as a channel for liquid discharge, directly connected to the bottom of the gas storage tank body 1, which can directionally discharge the deposited liquid and prevent liquid from accumulating in the tank. The electromagnetic one-way valve 22 realizes the automatic opening and closing of the drain channel through electric control, without manual operation, improving the timeliness and controllability of drainage and adapting to the automated sterilization process. The temperature sensor 23 monitors the liquid temperature in the drain pipe 21 in real time, providing data for the operation of the heating screw 25, ensuring that the temperature in the pipeline is maintained within a reasonable range, and preventing freezing or crystallization caused by low temperature. The heat insulation pipe 24 wraps around the surface of the drain pipe 21, reducing heat loss in the pipeline, enhancing the heat insulation effect, reducing heating energy consumption, and protecting the heating screw 25 from the influence of the external environment. The heating screw 25 can heat the drain pipe 21, preventing the liquid from freezing and blocking the pipeline or hydrogen peroxide residue crystallization in the pipeline under low temperature conditions, ensuring smooth drainage, and reducing the risk of pipeline corrosion.
[0027] Specifically, such as Figure 3 , Figure 4 As shown, the neutralization mechanism 3 includes a mounting shell 31, a filling pipe 32, a PLC controller 33, and a neutralization tank 34. The mounting shell 31 is fixedly connected to the bottom of the drain pipe 21.
[0028] Specifically, such as Figure 3 , Figure 4 As shown, the filling pipe 32 is fixedly connected to the rear side of the top of the mounting housing 31, and the PLC controller 33 is installed on the front side of the top of the mounting housing 31.
[0029] Specifically, such as Figure 3 , Figure 4 As shown, the PLC controller 33 is electrically connected to the solenoid single-way valve 22, the temperature sensor 23 and the heating screw 25, and the neutralization tank 34 is movably connected to the inside of the mounting shell 31.
[0030] In this embodiment: the mounting shell 31 provides a stable installation space for the neutralization tank 34 and protects it. The filling pipe 32 facilitates the addition of neutralizing agent into the neutralization tank 34. The PLC controller 33 can automatically adjust the working state of the electromagnetic single-way valve 22 and the heating screw 25 according to the information fed back by the temperature sensor 23, realizing intelligent drainage and temperature control. The neutralization tank 34 is used to collect the discharged liquid and react with the neutralizing agent to neutralize the corrosiveness of hydrogen peroxide and reduce the environmental harm of wastewater discharge. At the same time, the movable connection design makes it easy to remove for cleaning or replacement.
[0031] Specifically, such as Figure 3 As shown, a transparent observation window 4 is provided on the front side of the neutralization tank 34. The transparent observation window 4 is made of transparent acrylic sheet.
[0032] Specifically, such as Figure 3 As shown, a support column 5 is welded to the bottom of the mounting shell 31, and a shock-absorbing pad 6 is fixedly connected to the bottom of the support column 5. The bottom of the shock-absorbing pad 6 is engraved with anti-slip texture.
[0033] In this embodiment: By setting a transparent observation window 4, the liquid level in the tank and the color change of the liquid after the neutralization reaction can be directly observed through the transparent observation window 4, so as to quickly determine whether the neutralizing agent needs to be replenished and whether the liquid needs to be poured out and cleaned. The transparent observation window 4 is made of transparent acrylic sheet, which has good light transmittance to ensure clear observation. On the other hand, acrylic sheet has high hardness, strong impact resistance, and a certain degree of resistance to the corrosiveness of hydrogen peroxide residue. Compared with ordinary glass, it is less likely to break due to collision. By setting a support column 5, the bottom corrosion caused by direct contact between the mounting shell 31 and the ground is avoided. At the same time, it provides sufficient operating space for the removal and return of the neutralization tank 34. By setting a shock-absorbing pad 6, the vibration generated by the sterilizer during operation can be absorbed, reducing the impact of vibration on the neutralization tank 34, PLC controller 33 and other precision components. By setting an anti-slip texture, the friction with the placement surface can be increased.
[0034] Specifically, such as Figure 4 As shown, the surface of the insulation pipe 24 is covered with an insulation pad 7, which is made of aluminum silicate material.
[0035] Specifically, such as Figure 5 As shown, a filter ring 8 is movably connected to the top of the inner side of the neutralization tank 34, and the surface of the filter ring 8 is coated with an anti-corrosion coating.
[0036] In this embodiment: By setting up the thermal insulation pad 7, the drain pipe 21 is basically insulated, reducing the loss of heat from the pipe to the external environment. The thermal insulation pad 7 is made of aluminum silicate material, which has excellent high temperature resistance and can withstand the heat transferred by the heating screw 25 during operation. It will not deform or melt due to high temperature. By setting up the filter ring 8, these impurities can be intercepted before the liquid enters the neutralization tank 34, preventing impurities from depositing at the bottom of the tank and affecting the full contact between the neutralizer and the liquid. By setting up the anti-corrosion coating, it can resist the oxidative corrosion of hydrogen peroxide residue, preventing the filter ring 8 from rusting or breaking due to long-term contact with corrosive liquid.
[0037] Working principle: First, the gas storage tank 1, as the core gas source storage component, supplies stable compressed gas to the hydrogen peroxide sterilizer. Due to temperature changes, water vapor in the air condenses into condensate, or residual liquid is produced due to incomplete vaporization of the hydrogen peroxide solution. This liquid naturally settles at the bottom of the gas storage tank 1. Next, the temperature sensor 23 continuously monitors the liquid temperature inside the drain pipe 21 and transmits the real-time temperature data to the PLC controller 33. When the temperature sensor 23 detects that the temperature inside the drain pipe 21 is lower than a set threshold, the PLC controller 33 immediately triggers... The heating screw 25 starts, and simultaneously, the insulation pipe 24 and the aluminum silicate insulation pad 7 covering its surface work together. The insulation pipe 24 reduces heat loss from the drain pipe 21, and the insulation pad 7 further enhances the insulation effect, preventing heat transfer to the external environment. This ensures that the heating screw 25 can efficiently maintain the temperature inside the drain pipe 21 within a reasonable range, preventing liquid from freezing and clogging the pipe or causing hydrogen peroxide residue to crystallize. Then, when the liquid deposited at the bottom of the gas storage tank 1 reaches a certain amount, the PLC controller 33 can detect the liquid level through the liquid level sensor in the gas storage tank 1 according to a preset program or in conjunction with other mechanisms. A dynamic signal controls the electromagnetic one-way valve 22 at the bottom of the drain pipe 21 to open automatically. At this time, the sediment in the gas storage tank 1 flows out along the drain pipe 21 and enters the neutralization mechanism 3 below. Then, the outflowing liquid first passes through the filter ring 8, which intercepts impurities such as pipe rust debris and aging gasket particles that may be present in the liquid, preventing impurities from entering the neutralization tank 34 and affecting the neutralization reaction efficiency. The filtered liquid flows smoothly into the neutralization tank 34 and reacts with the pre-added neutralizing agent to neutralize the corrosiveness of hydrogen peroxide and reduce the environmental harm of wastewater. Staff can visually observe the changes in liquid level and the color of the liquid after the reaction through the transparent acrylic observation window on the front of the neutralization tank 34, quickly determining whether the neutralizing agent needs to be replenished or whether the liquid needs to be emptied and cleaned. Finally, when the neutralized liquid in the neutralization tank 34 reaches a certain amount or the neutralizing agent becomes ineffective, staff can directly remove the neutralization tank 34, which is movably connected to the inside of the mounting shell 31, empty the wastewater and clean the filter ring 8. After completing the maintenance, the neutralization tank 34 is put back into the mounting shell 31, and the device returns to the standby state, waiting for the next drainage process triggered by the PLC controller 33.
[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drainage device for a hydrogen peroxide sterilizer's gas storage tank, comprising a gas storage tank body (1), characterized in that: A drainage mechanism (2) is fixedly connected to the bottom of the gas storage tank body (1). A neutralization mechanism (3) is fixedly connected to the bottom of the drainage mechanism (2). The drainage mechanism (2) includes a drain pipe (21), an electromagnetic one-way valve (22), a temperature sensor (23), an insulation pipe (24), and a heating screw (25). The drain pipe (21) is fixedly connected to the bottom of the gas storage tank body (1). The electromagnetic one-way valve (22) is installed at the bottom of the drain pipe (21). The temperature sensor (23) is installed on the right side of the drain pipe (21). The detection end of the temperature sensor (23) on the left side penetrates and extends to the inside of the drain pipe (21). The insulation pipe (24) is welded to the surface of the drain pipe (21). The heating screw (25) is installed on the inner wall of the insulation pipe (24).
2. The drainage device for the gas storage tank of a hydrogen peroxide sterilizer according to claim 1, characterized in that: The neutralization mechanism (3) includes a mounting shell (31), a filling pipe (32), a PLC controller (33), and a neutralization tank (34). The mounting shell (31) is fixedly connected to the bottom of the drain pipe (21).
3. The hydrogen peroxide sterilizer storage tank drainage device according to claim 2, characterized in that: The filling tube (32) is fixedly connected to the rear side of the top of the mounting housing (31), and the PLC controller (33) is installed on the front side of the top of the mounting housing (31).
4. The drainage device for the gas storage tank of a hydrogen peroxide sterilizer according to claim 2, characterized in that: The PLC controller (33) is electrically connected to the solenoid one-way valve (22), the temperature sensor (23) and the heating screw (25), and the neutralization tank (34) is movably connected to the inside of the mounting shell (31).
5. The drainage device for the gas storage tank of a hydrogen peroxide sterilizer according to claim 2, characterized in that: The neutralization tank (34) has a transparent observation window (4) on its front side, which is made of transparent acrylic sheet.
6. The drainage device for the storage tank of a hydrogen peroxide sterilizer according to claim 2, characterized in that: The bottom of the mounting shell (31) is welded with a support column (5), and the bottom of the support column (5) is fixedly connected with a shock-absorbing pad (6), and the bottom of the shock-absorbing pad (6) is engraved with anti-slip texture.
7. The hydrogen peroxide sterilizer storage tank drainage device according to claim 1, characterized in that: The surface of the insulation pipe (24) is covered with an insulation cotton pad (7), which is made of aluminum silicate material.
8. The drainage device for the gas storage tank of a hydrogen peroxide sterilizer according to claim 2, characterized in that: A filter ring (8) is movably connected to the top of the inner side of the neutralization tank (34), and the surface of the filter ring (8) is coated with an anti-corrosion coating.