CN114668866A - Steam sterilizer for detecting and sterilizing new corona nucleic acid and working method - Google Patents

Abstract

The invention discloses a steam sterilizer for detecting and sterilizing neocoronaric acid and a working method, belonging to the technical field of disinfection and sterilization equipment. When the device works, the temperature of the main heater is increased to carry out 3 times of pulse temperature increase, and 1 time of exhaust is carried out after each pulse temperature increase; and after the drainage time of the normally closed drain valve is reached, judging whether the normally closed drain valve is opened for the second time according to the water quality information, if the water quality concentration is smaller than the specified value, ending the work of the steam sterilizer, and if the water quality concentration is larger than the specified value, re-opening the normally closed drain valve, repeating the steps until the water quality concentration is smaller than the specified value, and ending the work of the steam sterilizer.

Description

Steam sterilizer for detecting and sterilizing new corona nucleic acid and working method

Technical Field

The invention discloses a steam sterilizer for detecting and sterilizing new corona nucleic acid and a working method, and belongs to the technical field of disinfection and sterilization equipment.

Background

The steam sterilizer adopts microcomputer control and liquid crystal module (LCD) display, takes saturated steam as a working medium, effectively sterilizes the objects to be sterilized in a short time, and is suitable for rapid sterilization of instruments, dressings, rubber, liquid, glassware, culture medium, wastes, blood samples and other objects by various levels of medical health and biomedical research institutions such as laboratories, operating rooms, supply rooms, colleges, animal husbandry, disease control, PCR new crown laboratories and the like. In the sterilization process of the waste after the detection of the new coronavirus nucleic acid, the strong corrosivity of the chlorine-containing disinfectant sprayed on the surface of the new coronavirus nucleic acid waste on stainless steel is involved, and finally, the corrosion of a stainless steel liner body of a steam sterilizer can be caused, so that the leakage of steam from the welding and sealing part of the liner of the sterilizer and the functional failure of the steam sterilizer can be caused. The prior art solves the problem by changing a corrosion-resistant inner container stainless steel material, but the corrosion-resistant inner container stainless steel material is used, so that the material cost of the steam sterilizer greatly rises, the steam sterilizer cannot be generally applied to users, and the steam sterilizer made of the stainless steel material, which is a common material, is corroded in a short time by the users, so that equipment is scrapped, and the waste of product resources is caused.

Disclosure of Invention

The invention provides a steam sterilizer for detecting and sterilizing new corona nucleic acid and a working method, and solves the problem that the interior of the steam sterilizer is easy to corrode in the prior art.

A steam sterilizer for sterilization of neocorona nucleic acid detection, comprising: the automatic water inlet joint, the automatic water discharge joint and the steam sterilizer main body are connected, a first branch of the automatic water inlet joint is connected with a water inlet at the bottom of the side surface of the steam sterilizer main body through a normally closed water inlet valve, a second branch of the automatic water inlet joint is connected with a flushing port at the top of the steam sterilizer main body through a normally closed flushing valve, and a water outlet at the bottom of the steam sterilizer main body is sequentially connected with a normally closed water discharge valve, a chlorine ion sensor and the automatic water discharge joint through a water quality filter;

an antifouling tray is arranged in the steam sterilizer main body, a main heater and a water level floating ball are arranged between the antifouling tray and the bottom of the steam sterilizer main body, and an exhaust hole communicated with the outside of the steam sterilizer main body is formed in the top of the antifouling tray and is sequentially connected with a biological safety filter, a normally open exhaust valve and a filter;

the steam sterilizer main body is internally provided with a pressure sensor and a temperature sensor, and the top of the steam sterilizer main body is connected with a safety valve.

Preferably, a branch is arranged between the normally-open exhaust valve and the filter, and the branch is sequentially connected with a one-way valve, a condenser exhaust port, a filter tank and a balance hole;

the check valve is arranged air conditioning and is reduced the gaseous temperature of normally open discharge valve exhaust between normally open discharge valve and the filter, and the condenser gas vent passes through the top of pipe connection filter tank, the pipeline extends to below the inside liquid level of filter tank by the top of filter tank, filters tank deck portion and still passes through the pipe connection balancing hole.

Preferably, the temperature sensor comprises a platinum thermistor.

A working method of a steam sterilizer for sterilizing new crown nucleic acid detection, which uses the steam sterilizer for sterilizing new crown nucleic acid detection, comprises the following steps:

s1, starting a steam sterilizer to work, opening a normally closed water inlet valve, and allowing purified water to enter a steam sterilizer main body;

s2, when the set water level of the water level floating ball is reached, closing the normally closed water inlet valve, starting heating of the main heater, and opening the normally open exhaust valve to exhaust;

s3, heating the main heater for 3 times of pulse heating, and exhausting for 1 time after each pulse heating;

s4, closing all the electromagnetic valves, and changing the interior of the steam sterilizer main body into a closed space;

s5, continuously heating to the set sterilization temperature and then keeping the set sterilization time;

s6, after the sterilization time is up, opening a normally closed drain valve and a normally open exhaust valve, reducing the pressure in the steam sterilizer main body to zero, and discharging hot air through the normally open exhaust valve and reducing the temperature;

s7, opening a normally closed flushing valve, and spraying purified water through a spraying arm at the top of the steam sterilizer main body to flush the inner surface of the steam sterilizer main body;

s8, after the water level reaches the set water level of the water level floating ball, closing the normally closed drain valve, and starting heating the main heating pipe;

s9, after heating to a set flushing pressure, opening a normally closed drainage valve, and detecting the water quality information of the drained water in real time through a chloride ion sensor;

and S10, after the drainage time of the normally closed drainage valve is up, judging whether the normally closed drainage valve is opened for the second time according to the water quality information, if the water quality concentration is smaller than a specified value, finishing the work of the steam sterilizer, if the water quality concentration is larger than the specified value, re-opening the normally closed drainage valve, and repeating the steps until the water quality concentration is smaller than the specified value, and finishing the work of the steam sterilizer.

Compared with the prior art, the invention has the beneficial effects that: on the basis of using common materials, a flushing electromagnetic valve and a water quality detection sensor are added, so that the corrosive damage of the new crown nucleic acid waste to the liner pressure container is solved; and a better sterilization effect is ensured by multiple times of pulse heating.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a graph of pressure in a steam sterilizer body versus time;

the reference numerals include: 1-automatic water inlet joint, 2-automatic water discharge joint, 3-chloride ion sensor, 4-normally closed drain valve, 5-normally closed water inlet valve, 6-normally open vent valve, 7-water quality filter, 8-main heater, 9-antifouling tray, 10-steam sterilizer body, 11-biosafety filter, 12-filter, 13-one-way valve, 14-condenser, 15-filter tank, 16-balance hole, 17-normally closed flushing valve, 18-pressure gauge, 19-spray arm, 20-safety valve, 21-gas path direction, 22-water path direction.

Detailed Description

The following description will further illustrate embodiments of the present invention with reference to specific examples:

a steam sterilizer for sterilizing fresh corona nucleic acid detection, as shown in fig. 1 (wherein the air path direction 21 and the water path direction 22 are indicated by different arrows), comprising: the automatic water inlet connector 1, the automatic water outlet connector 2 and the steam sterilizer main body 10, wherein a first branch of the automatic water inlet connector 1 is connected with a water inlet at the bottom of the side surface of the steam sterilizer main body 10 through a normally closed water inlet valve 5, a second branch is connected with a flushing port at the top of the steam sterilizer main body 10 through a normally closed flushing valve 17, and a water outlet at the bottom of the steam sterilizer main body 10 is sequentially connected with a normally closed water outlet valve 4, a chlorine ion sensor 3 and the automatic water outlet connector 2 through a water quality filter 7;

an antifouling tray 9 is arranged in the steam sterilizer main body 10, a main heater 8 and a water level floating ball are arranged between the antifouling tray 9 and the bottom of the steam sterilizer main body 10, the top of the antifouling tray 9 is provided with an exhaust hole communicated with the outside of the steam sterilizer main body 10, and the exhaust hole is sequentially connected with a biological safety filter 11, a normally open exhaust valve 6 and a filter 12;

the steam sterilizer main body 10 is also internally provided with a pressure sensor and a temperature sensor, the top of the steam sterilizer main body is connected with a safety valve 20, and the pressure sensor is connected with a pressure gauge 18.

A branch is arranged between the normally open exhaust valve 6 and the filter 12, and the branch is sequentially connected with a one-way valve 13, a condenser 14 exhaust port, a filter tank 15 and a balance hole 16;

check valve 13 arranges air conditioning to reduce the temperature of normally open discharge valve 6 exhaust gas between normally open discharge valve 6 and the filter 12, and 14 gas vents of condenser pass through the top of pipe connection filter tank 15, the pipeline extends to below the inside liquid level of filter tank 15 by the top of filter tank 15, and filter tank 15 top still passes through pipe connection balancing hole 16.

The temperature sensor includes a platinum thermistor.

A working method of a steam sterilizer for sterilizing new crown nucleic acid detection, which uses the steam sterilizer for sterilizing new crown nucleic acid detection, comprises the following steps:

s1, starting the steam sterilizer to work, opening a normally closed water inlet valve 5, and allowing purified water to enter a steam sterilizer main body 10;

s2, when the set water level of the water level floating ball is reached, the normally closed water inlet valve 5 is closed, the main heater 8 starts to heat, and the normally open exhaust valve 6 is opened to exhaust;

s3, heating the main heater 8 for 3 times of pulse heating, and exhausting for 1 time after each pulse heating;

s4, closing all the electromagnetic valves, and changing the interior of the steam sterilizer main body 10 into a closed space;

s5, continuously heating to the set sterilization temperature and then keeping the set sterilization time;

s6, after the sterilization time is up, the normally closed drain valve 4 is opened, the normally open exhaust valve 6 is opened, the pressure in the steam sterilizer main body 10 is reduced to zero, and hot air is discharged through the normally open exhaust valve 6 and is cooled;

s7, opening a normally closed flushing valve 17, and spraying purified water through a spraying arm 19 at the top of the steam sterilizer main body 10 to flush the inner surface of the steam sterilizer main body 10;

s8, after the water level reaches the set water level of the water level floating ball, closing the normally closed drain valve 4, and starting heating the main heating pipe;

s9, after heating to a set flushing pressure, opening the normally closed drain valve 4, and detecting the water quality information of the discharged water in real time through the chloride ion sensor 3;

and S10, after the drainage time of the normally closed drain valve 4 is up, judging whether to open the normally closed drain valve 4 for the second time according to the water quality information, if the water quality concentration is less than the specified value, finishing the work of the steam sterilizer, and if the water quality concentration is greater than the specified value, re-opening the normally closed drain valve 4, repeating the steps until the water quality concentration is less than the specified value, and finishing the work of the steam sterilizer.

As shown in fig. 2, the pulsating temperature rise and the air exhaust are performed alternately, at this time, the air pressure inside the steam sterilizer body 10 repeatedly rises and falls, after all the electromagnetic valves are closed, the temperature rises to the sterilization temperature and is maintained, then the air exhaust and the water flushing are performed, and the water flushing process is continued for a plurality of times.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims (4)

1. A steam sterilizer for sterilization of neocorona nucleic acid detection, comprising: the automatic water inlet joint, the automatic water discharge joint and the steam sterilizer main body are connected, a first branch of the automatic water inlet joint is connected with a water inlet at the bottom of the side surface of the steam sterilizer main body through a normally closed water inlet valve, a second branch of the automatic water inlet joint is connected with a flushing port at the top of the steam sterilizer main body through a normally closed flushing valve, and a water outlet at the bottom of the steam sterilizer main body is sequentially connected with a normally closed water discharge valve, a chlorine ion sensor and the automatic water discharge joint through a water quality filter;

an antifouling tray is arranged in the steam sterilizer main body, a main heater and a water level floating ball are arranged between the antifouling tray and the bottom of the steam sterilizer main body, and an exhaust hole communicated with the outside of the steam sterilizer main body is formed in the top of the antifouling tray and is sequentially connected with a biological safety filter, a normally open exhaust valve and a filter;

the inside pressure sensor and the temperature sensor that still are equipped with of steam sterilizer main part, the relief valve is connected at the top.

2. The steam sterilizer for detecting and sterilizing new crown nucleic acid as claimed in claim 1, wherein a branch is arranged between the normally open vent valve and the filter, and the branch is connected with a one-way valve, a condenser vent port, a filter tank and a balance hole in sequence;

the check valve is arranged air conditioning and is reduced the gaseous temperature of normally open discharge valve exhaust between normally open discharge valve and the filter, and the condenser gas vent passes through the top of pipe connection filter tank, the pipeline extends to below the inside liquid level of filter tank by the top of filter tank, filters tank deck portion and still passes through the pipe connection balancing hole.

3. The steam sterilizer for detecting and sterilizing fresh corona nucleic acid as claimed in claim 2, wherein said temperature sensor comprises platinum thermistor.

4. A method for operating a steam sterilizer for sterilizing nucleic acid assay for fresh corona, comprising the steps of:

s1, starting a steam sterilizer to work, opening a normally closed water inlet valve, and allowing purified water to enter a steam sterilizer main body;

s2, when the set water level of the water level floating ball is reached, closing the normally closed water inlet valve, starting heating of the main heater, and opening the normally open exhaust valve to exhaust;

s3, heating the main heater for 3 times of pulse heating, and exhausting for 1 time after each pulse heating;

s4, closing all the electromagnetic valves, and changing the interior of the steam sterilizer main body into a closed space;

s5, continuously heating to the set sterilization temperature and then keeping the set sterilization time;

s6, after the sterilization time is up, opening a normally closed drain valve and a normally open exhaust valve, reducing the pressure in the steam sterilizer main body to zero, and discharging hot air through the normally open exhaust valve and reducing the temperature;

s7, opening a normally closed flushing valve, and spraying purified water through a spraying arm at the top of the steam sterilizer main body to flush the inner surface of the steam sterilizer main body;

s8, after the water level reaches the set water level of the water level floating ball, closing the normally closed drain valve, and starting heating the main heating pipe;

s9, after heating to a set flushing pressure, opening a normally closed drainage valve, and detecting the water quality information of the drained water in real time through a chloride ion sensor;

and S10, after the drainage time of the normally closed drainage valve is up, judging whether the normally closed drainage valve is opened for the second time according to the water quality information, if the water quality concentration is smaller than a specified value, finishing the work of the steam sterilizer, if the water quality concentration is larger than the specified value, re-opening the normally closed drainage valve, and repeating the steps until the water quality concentration is smaller than the specified value, and finishing the work of the steam sterilizer.

Images