Anti-backflow device in integrated space sterilization process

Abstract

The utility model provides an integrated anti-backflow device in a space sterilization process, which comprises a high-pressure fan arranged in a machine body, an air outlet end of the high-pressure fan is communicated with an air outlet pipe, the air outlet pipe penetrates through and extends out of the machine body, a temperature probe is arranged on the air outlet pipe, a pressure sensor is arranged on the air outlet pipe, and a control unit is arranged in the machine body. And the control unit is in signal connection with the high-pressure fan, the temperature probe and the pressure sensor. According to the integrated anti-backflow device in the space sterilization process, the temperature probe and the pressure sensor are arranged, so that the temperature and the pressure of hydrogen peroxide gas conveyed in the air outlet pipe can be detected, and an abnormal alarm is given after the temperature and the pressure are abnormal, so that sterilization equipment stops running; the risk of hydrogen peroxide gas backflow is greatly reduced, the influence of hydrogen peroxide gas backflow on the safety of operators and the safety of equipment is avoided, and workshop safety accidents are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to VHP sterilization, relates to a large space integrated formula VHP sterilization equipment, especially relates to a kind of integrated formula space sterilization process prevent backflow device. BACKGROUND

[0002] VHP equipment is a kind of equipment using hydrogen peroxide gas as sterilizing agent, is widely used in the sterilization process in hospital, pharmaceutical industry, laboratory and other fields, VHP sterilization is converted into gas by hydrogen peroxide, and microorganisms, including bacteria, viruses, fungi etc., are killed by using its strong oxidizing property, and many drug factories have widely adopted the mode of VHP sterilization to replace formaldehyde and ozone sterilization.

[0003] In the application of large space integrated formula VHP sterilization equipment, in addition to the sterilization effect is the most important purpose, with the gradual upgrading of regulations, the requirement of operator safety is gradually improved, currently the equipment only transports hydrogen peroxide gas to the inside of air conditioning air pipe, and is transported to the inside of sterilization area by air supply fan, for operator safety, concentration abnormality alarm, regional environment temperature and humidity abnormality alarm, equipment inside has dehumidifier fault alarm, high-pressure fan fault alarm, heating unit fault alarm, hydrogen peroxide dosage abnormality alarm etc.

[0004] But the existing large space integrated formula VHP sterilization equipment has the following defects in use process: when the dehumidifier or high-pressure fan inside the sterilization equipment is attenuated in performance, hydrogen peroxide gas exists to be returned by the pressure inside the air conditioning air pipe, and then the risk of hydrogen peroxide gas backflow is caused, and after backflow occurs, not only corrosion damage to the internal structure of sterilization equipment is caused, but also the inside of machine room is filled with hydrogen peroxide gas due to backflow, and the safety of operator is affected.Therefore, the present application provides a kind of integrated formula space sterilization process prevent backflow device for solving the above problems. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that: for the defects of prior art, provide a kind of integrated formula space sterilization process prevent backflow device, have the advantages such as prevent backflow, solve the problem of not being able to prevent backflow.

[0006] The utility model discloses a kind of integrated formula space sterilization process prevent backflow device to solve the above technical problems, using the following technical solutions:

[0007] A kind of integrated formula space sterilization process prevent backflow device, including the high-pressure fan being arranged in the body, the outlet end of the high-pressure fan is communicated with outlet pipe, and the outlet pipe is extended to the outside of body and is penetrated, temperature probe is arranged on the outlet pipe, pressure sensor is arranged on the outlet pipe, control unit is arranged in the body, and the control unit is signal connection with high-pressure fan, temperature probe and pressure sensor respectively.

[0008] Preferably, a dehumidifier is installed inside the machine body, and the dehumidifier is signal-connected to the control unit.

[0009] Preferably, the dehumidifier has a connecting pipe at its air outlet, and the connecting pipe is connected to the air inlet of the high-pressure fan.

[0010] Preferably, a temperature and humidity sensor is provided on the connecting pipe, a high-pressure filter is provided on the connecting pipe, a micro differential pressure sensor is provided on the high-pressure filter, and the micro differential pressure sensor is located inside the connecting pipe.

[0011] Preferably, the detection end of the temperature probe is located inside the air outlet duct, and the detection end of the pressure sensor is located inside the air outlet duct.

[0012] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0013] (1) The integrated space sterilization process anti-backflow device can detect the temperature and pressure of hydrogen peroxide gas transported in the air outlet duct through the set temperature probe and pressure sensor, and will issue an abnormal alarm when the temperature and pressure are abnormal, so as to stop the sterilization equipment and greatly reduce the risk of hydrogen peroxide gas backflow.

[0014] (2) The integrated space sterilization process anti-backflow device can detect the temperature or pressure of hydrogen peroxide in time, and promptly detect if the valve of the delivery pipeline is not open or if the performance of the dehumidifier or high pressure fan is degraded, and then repair or replace it, thus preventing the backflow of hydrogen peroxide gas from affecting the safety of operators and equipment, and reducing workshop safety accidents. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the layout structure of an anti-backflow device in an integrated space sterilization process according to this utility model.

[0016] The attached figures are labeled as follows: 100 Dehumidifier, 200 Connecting pipe, 201 Temperature and humidity sensor, 202 Micro differential pressure sensor, 203 High pressure filter, 300 High pressure fan, 400 Air outlet duct, 500 Pressure sensor, and 600 Temperature probe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1:

[0020] Please see Figure 1 An integrated space sterilization process backflow prevention device in this embodiment includes a high-pressure blower 300 installed inside the machine body. The air outlet of the high-pressure blower 300 is connected to an air outlet pipe 400, which extends through and out of the machine body. A temperature probe 600 and a pressure sensor 500 are installed on the air outlet pipe 400. A control unit is installed inside the machine body, and the control unit is connected to the high-pressure blower 300, the temperature probe 600, and the pressure sensor 500 respectively.

[0021] In operation, the high-pressure blower 300 delivers hydrogen peroxide gas, which is then transported to the control panel duct via the outlet duct 400. As the hydrogen peroxide gas flows through the outlet duct 400, the temperature probe 600 and pressure sensor 500 detect its temperature and pressure, respectively. If either the temperature probe 600 or the pressure sensor 500 detects excessively high temperature or pressure, an alarm is triggered, and the alarm information is transmitted to the control unit. Upon receiving this alarm information, the control unit stops the high-pressure blower 300 and other components within the unit. During operation, when the control unit receives an abnormal message, it may detect situations where hydrogen peroxide gas backflows due to factors such as: valves in the delivery pipeline not being open, causing the heat and pressure of the hydrogen peroxide gas to rise over time as it is delivered to the terminal; or the high-pressure fan's performance deteriorating, preventing the output air pressure from exceeding the internal air pressure of the air conditioning system, resulting in excessively high heat and pressure of the hydrogen peroxide gas. Detecting hydrogen peroxide gas in these ways prevents backflow in these two situations, protecting the internal equipment and improving operator safety.

[0022] Specifically, the detection end of the temperature probe 600 is located inside the air outlet duct 400, the detection end of the pressure sensor 500 is located inside the air outlet duct 400, and the air outlet duct 400 is connected to the air conditioning duct.

[0023] Example 2:

[0024] The basic content is the same as in Example 1, except that:

[0025] Please see Figure 1In this embodiment, a dehumidifier 100 is installed inside the machine body. The dehumidifier 100 is connected to the control unit via a signal. The air outlet of the dehumidifier 100 is connected to a connecting pipe 200, and the connecting pipe 200 is connected to the air inlet of the high-pressure fan 300. A temperature and humidity sensor 201 is installed on the connecting pipe 200. A high-pressure filter 203 is installed on the connecting pipe 200. A micro-differential pressure sensor 202 is installed on the high-pressure filter 203, and the micro-differential pressure sensor 202 is located inside the connecting pipe 200.

[0026] During application, hydrogen peroxide gas is generated inside the machine and then passes through dehumidifier 100 for dehumidification. After dehumidification, the hydrogen peroxide gas is then transported to high-pressure fan 300 via connecting pipe 200. Finally, the hydrogen peroxide is transported to air conditioning duct via air outlet pipe 400. At the same time, the humidity sensor, micro-differential pressure sensor and high-pressure filter ensure the cleanliness of the input hydrogen peroxide gas, thereby improving the quality of the output hydrogen peroxide gas.

[0027] In summary, the working principle of the anti-backflow device during the integrated space sterilization process is as follows:

[0028] The temperature probe 600 and pressure sensor 500 on the air outlet duct 400 can detect the temperature and pressure of the hydrogen peroxide gas being transported inside the air outlet duct 400. If an abnormality is detected in the temperature and pressure, the high-pressure blower 300 and other equipment in the sterilization equipment will stop operating to avoid damage to the high-pressure blower 300 and other equipment in the sterilization equipment, and to improve the safety of the operators.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. An integrated anti-backflow device for space sterilization processes, characterized in that: The device includes a high-pressure blower (300) installed inside the machine body. The outlet end of the high-pressure blower (300) is connected to an outlet pipe (400), which extends through and out of the machine body. A temperature probe (600) and a pressure sensor (500) are installed on the outlet pipe (400). A control unit is installed inside the machine body, and the control unit is connected to the high-pressure blower (300), the temperature probe (600), and the pressure sensor (500) respectively.

2. The anti-backflow device during the integrated space sterilization process according to claim 1, characterized in that: The machine body is equipped with a dehumidifier (100), which is signal-connected to the control unit.

3. The anti-backflow device during the integrated space sterilization process according to claim 2, characterized in that: The dehumidifier (100) has a connecting pipe (200) at its air outlet, and the connecting pipe (200) is connected to the air inlet of the high-pressure fan (300).

4. The anti-backflow device during the integrated space sterilization process according to claim 3, characterized in that: A temperature and humidity sensor (201) is provided on the connecting pipe (200), a high pressure filter (203) is provided on the connecting pipe (200), a micro differential pressure sensor (202) is provided on the high pressure filter (203), and the micro differential pressure sensor (202) is located inside the connecting pipe (200).

5. The anti-backflow device during the integrated space sterilization process according to claim 1, characterized in that: The detection end of the temperature probe (600) is located inside the air outlet duct (400), and the detection end of the pressure sensor (500) is located inside the air outlet duct (400).

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