CN112494671A

CN112494671A - Biological safety sterilizer

Info

Publication number: CN112494671A
Application number: CN202011379369.XA
Authority: CN
Inventors: 王旭亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-03-16

Abstract

The invention relates to a biosafety sterilizer which comprises a tank body, wherein the tank body comprises an upper layer basket, a lower layer basket and a heating cavity, a heater is arranged in the heating cavity, a basket bottom plate is arranged between the lower layer basket and the heating cavity, an opening is formed in the edge of the basket bottom plate and used for raising steam in the heating cavity, an exhaust pipe is arranged in the center of the basket bottom plate, a section of the exhaust pipe, which is positioned outside the tank body, is communicated with a first biological filter, and a pipeline is arranged at the top of the tank body and is communicated with a second biological. When the heater begins to work and produces high temperature vapor, high temperature vapor gets into upper hand-basket and lower floor's hand-basket through the trompil at hand-basket bottom plate edge, and the blast pipe outwards exhausts and makes the blast pipe form the low-pressure zone in jar body, and high temperature vapor outwards discharges to the low-pressure zone diffusion and through the blast pipe for jar internal constitution a circulation air current, can the effectual sterilization effect that promotes jar body. The first biological filter and the second biological filter can disinfect the virus in the gas exhausted from the tank body, thereby effectively preventing pollution.

Description

Biological safety sterilizer

Technical Field

The invention belongs to the technical field of sterilization equipment, and particularly relates to a biosafety sterilizer.

Background

The current market sterilizers are designed and manufactured only for whether the target sterilization object achieves the sterilization effect, basic disease control and hospitals aiming at epidemic infectious diseases do not have the requirements of biological laboratories such as B2, B3 and the like on the exhaust sterilizer, particularly, no filter capable of filtering viruses exists at present, and the high-efficiency filter of 0.1um to 0.22um can only filter bacteria. The biosafety high-pressure steam sterilizer facing the secondary pollution of the environment and the human body does not have a complete and standard sterilization scheme, and particularly lacks a sterilizer for sterilizing the polluted waste and treating positive bacteria used in a polluted area to prevent the secondary pollution and a treatment method thereof.

Through retrieval, the Chinese invention patent is as follows: the application discloses a waste gas treatment system of a biosafety sterilizer in a P3 laboratory, which belongs to the technical field of laboratory waste gas treatment and discloses a waste gas treatment system of a biosafety sterilizer in a P3 laboratory (with the application number of CN201720295840.4 and the application date of 2017.03.24). The device comprises a sterilizer inner chamber, wherein a filtering and sterilizing unit and a high-temperature sterilizing unit are arranged outside the sterilizer inner chamber, a pipeline is led out from the sterilizer inner chamber and sequentially passes through the filtering and sterilizing unit and the high-temperature sterilizing unit, an exhaust gas extracting unit is also arranged between the filtering and sterilizing unit and the high-temperature sterilizing unit, and the exhaust gas extracting unit is used for pumping the exhaust gas which passes through the filtering and sterilizing unit from the sterilizer inner chamber and then sending the exhaust gas into the high-temperature sterilizing unit again. Through setting up filtration sterilization unit and high temperature sterilization unit, carry out twice sterilization with the waste gas of sterilizer inner chamber exhaust, realized the safe emission of waste gas. However, the application has the defects of complex structure, can only be arranged in large places such as laboratories, hospitals and the like, and cannot be used conveniently.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to solve the problems that the existing sterilizer is difficult to realize complete sterilization and effectively prevents secondary pollution.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the biological safety sterilizer comprises a tank body, wherein the tank body comprises an upper layer basket, a lower layer basket and a heating cavity, a heater is arranged in the heating cavity, a basket bottom plate is arranged between the lower layer basket and the heating cavity, an opening is formed in the edge of the basket bottom plate and used for heating steam in the cavity to rise, an exhaust pipe is arranged in the center of the basket bottom plate, the exhaust pipe penetrates through the heating cavity and is communicated with the outer side of the tank body, one section of the exhaust pipe, on the outer side of the tank body, is communicated with a first biological filter, and a pipeline is arranged at the top of the tank body and is communicated with a second biological filter.

Preferably, the second biological filter is communicated with a vacuum pump, an electric ball valve is arranged between the vacuum pump and the second biological filter, and pipelines at two ends of the first biological filter and the second biological filter are respectively provided with a differential pressure gauge.

Preferably, be equipped with temperature-sensing ware seven on the biofilter one, biofilter one has the cooling tube through the pipeline intercommunication, still be equipped with the solenoid valve between biofilter one and the cooling tube, the cooling tube sets up in the water storage box, the water storage box passes through the pipeline and heats the chamber intercommunication, be equipped with high-pressure water pump between water storage box and the heating chamber, be equipped with check valve one between high-pressure water pump and the heating chamber, be equipped with temperature-sensing ware four on the check valve one.

Preferably, the tank body is further provided with a quick-opening pot cover, a sealing ring is arranged on the contact surface of the quick-opening pot cover and the tank body, the tank body is provided with a third temperature sensor, and the outer side of the tank body is further provided with a heat insulation layer.

Preferably, a pipeline of the second biological filter communicated with the tank body is provided with a first temperature sensor, and the second biological filter is provided with a second temperature sensor.

Preferably, a branch is arranged on a pipeline between the one-way valve I and the heating cavity and communicated with a first drain valve, a fifth temperature sensor is arranged in the branch, and a sixth temperature sensor is arranged in the first drain valve.

Preferably, the outlet of the cooling pipe is communicated with a waste water tank through a pipeline, and the waste water tank is provided with an overflow pipe.

Preferably, the water storage tank is provided with a water tank drain pipe, and the water tank drain pipe is provided with a second drain valve.

The operation method of the biosafety sterilizer is adopted, and the method specifically comprises the following steps:

s100, preprocessing, sealing the sterilizer, and heating for sterilization;

s200, performing vacuum treatment, namely discharging air and steam in the tank body;

and S300, heating for sterilization, and starting a heater for sterilization.

Preferably, the pretreatment in the step S100 is to close all valves to seal the tank, heat the pipeline of the tank at 100 ℃ for 5min to inactivate, heat again to make the detection temperature of all temperature sensors greater than 105 ℃, and control the heater to start and heat to 105 ℃;

the vacuum treatment in the step S200 is to discharge all air and steam in the tank body through an exhaust pipe, and start a heater to generate steam to finish saturated steam replacement;

the heating sterilization in step S300 is specifically to start entering a sterilization stage after the detection temperatures of all temperature sensors are greater than 105 ℃ after the replacement with the saturated steam, calculate the sterilization time, and complete the sterilization after the sterilization time reaches the set time.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the biological safety sterilizer comprises a tank body, wherein the tank body comprises an upper layer basket, a lower layer basket and a heating cavity, a heater is arranged in the heating cavity, a basket bottom plate is arranged between the lower layer basket and the heating cavity, an opening is formed in the edge of the basket bottom plate and used for heating steam in the cavity to rise, an exhaust pipe is arranged in the center of the basket bottom plate, the exhaust pipe penetrates through the heating cavity and is communicated with the outer side of the tank body, one section of the exhaust pipe, on the outer side of the tank body, is communicated with a first biological filter, and a pipeline is arranged at the top of the tank body and is communicated with a second biological filter. When the heater begins to work, the heating chamber begins to produce high-temperature steam, and high-temperature steam gets into upper hand-basket and lower floor hand-basket through the trompil at hand-basket bottom plate edge, and simultaneously, the outside exhaust of blast pipe makes the blast pipe form the low-pressure area in jar body, and high-temperature steam outwards discharges to the low-pressure area diffusion and through the blast pipe for jar internal circulation air current that constitutes of body, the sterilization effect that can the effectual promotion jar body. The first biological filter and the second biological filter can sterilize and disinfect the gas discharged from the tank body, thereby effectively preventing pollution.

Drawings

FIG. 1 is a schematic view of a biosafety sterilizer according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a tank body; 110. quickly opening the pot cover; 120. a seal ring; 130. a heat-insulating layer; 140. an upper layer basket; 150. A lower layer basket; 160. a basket bottom plate; 170. a heating cavity; 180. a heater; 211. a one-way valve I; 212. A high pressure water pump; 220. an exhaust pipe; 221. a first biological filter; 222. an electromagnetic valve; 230. a water storage tank; 231. a cooling tube; 232. a water tank drain pipe; 240. a wastewater tank; 241. an overflow pipe; 251. a first drain valve; 252. a second drain valve; 261. a first temperature sensor; 262. a second temperature sensor; 263. a third temperature sensor; 264. a fourth temperature sensor; 265. a fifth temperature sensor; 266. a temperature sensor six; 267. a temperature sensor seven; 270. a second biological filter; 280. an electric ball valve; 290. a vacuum pump.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1, the bio-safety sterilizer of the embodiment comprises a tank 100, wherein the tank 100 comprises an upper layer basket 140, a lower layer basket 150 and a heating cavity 170, a heater 180 is arranged in the heating cavity 170, a basket bottom plate 160 is arranged between the lower layer basket 150 and the heating cavity 170, an opening is formed in the edge of the basket bottom plate 160 and used for steam rising in the heating cavity 170, an exhaust pipe 220 is arranged in the center of the basket bottom plate 160, the exhaust pipe 220 penetrates through the heating cavity 170 and is communicated with the outer side of the tank 100, a first bio-filter 221 is communicated with one section of the exhaust pipe 220 on the outer side of the tank 100, and a second bio-filter 270 is communicated with the top of the tank 100 through a pipeline. When the heater 180 starts to work, the heating chamber 170 starts to generate high-temperature water vapor, the high-temperature water vapor enters the upper basket 140 and the lower basket 150 through the openings at the edge of the basket bottom plate 160, meanwhile, the exhaust pipe 220 exhausts outwards to enable the exhaust pipe 220 to form a low-pressure area in the tank 100, and the high-temperature water vapor diffuses towards the low-pressure area and is exhausted outwards through the exhaust pipe 220, so that a circulating air flow is formed in the tank 100, and the sterilization effect of the tank 100 can be effectively improved. The first biological filter 221 and the second biological filter 270 can sterilize the gas exhausted from the tank 100, thereby effectively preventing secondary pollution.

The second biological filter 270 is communicated with a vacuum pump 290, an electric ball valve 280 is arranged between the vacuum pump 290 and the second biological filter 270, before sterilization, gas in the tank body 100 needs to be pumped out through the vacuum pump 290, so that sterilization in the tank body 100 is completed, pipelines at two ends of the first biological filter 221 and the second biological filter 270 are respectively provided with a differential pressure gauge, pressure changes of pipelines at two ends of the first biological filter 221 and the second biological filter 270 are detected through the differential pressure gauges, whether the first biological filter 221 and the second biological filter 270 are blocked or not can be judged, and when the differential pressure of the first biological filter 221 and the second biological filter 270 is greatly unbalanced, blocking occurs.

Be equipped with temperature-sensing ware seven 267 on the biofilter 221, biofilter 221 has cooling tube 231 through the pipeline intercommunication, still be equipped with solenoid valve 222 between biofilter 221 and the cooling tube 231, cooling tube 231 sets up in water storage box 230, water storage box 230 passes through the pipeline and communicates with heating chamber 170, and blast pipe 220 carries the high temperature steam after the sterilization in jar body 100 to cooling tube 231 and the water in the water storage box 230 carries out the heat transfer for the temperature of the water in the water storage box 230 can be promoted in the time of the high temperature steam condensation, has certain temperature when making the water in the water storage box 230 get into in the heating chamber 170, can reduce the time and the cost of heating, has realized the waste heat utilization of waste gas.

A high-pressure water pump 212 is arranged between the water storage tank 230 and the heating cavity 170, the high-pressure water pump 212 is used for conveying the water storage tank 230 to the heating cavity 170, a one-way valve I211 is arranged between the high-pressure water pump 212 and the heating cavity 170, and a temperature sensor IV 264 is arranged on the one-way valve I211.

The can body 100 is further provided with a quick-opening lid 110, a sealing ring 120 is arranged on the contact surface of the quick-opening lid 110 and the can body 100, and the sealing ring 120 is used for preventing secondary pollution caused by the leakage of gas containing bacteria in the can body 100. Be equipped with temperature-sensing ware three 263 on jar body 100, the jar body 100 outside still is equipped with heat preservation 130, and all outside pipelines of this embodiment all wrap up and be provided with heat preservation 130, thereby heat preservation 130 is used for guaranteeing the temperature of sterilizer and guarantees the sterilization effect. A first temperature sensor 261 is arranged on a pipeline of the second biological filter 270 communicated with the tank body 100, and a second temperature sensor 262 is arranged on the second biological filter 270.

A branch is arranged on a pipeline between the first check valve 211 and the heating cavity 170 and communicated with a first drain valve 251, a fifth temperature sensor 265 is arranged in the branch, and a sixth temperature sensor 266 is arranged in the first drain valve 251. The outlet of the cooling pipe 231 is connected to a waste water tank 240 through a pipe, and the waste water tank 240 is provided with an overflow pipe 241. The water storage tank 230 is provided with a water tank drain pipe 232, and the water tank drain pipe 232 is provided with a second drain valve 252. The first biological filter 221 and the second biological filter 270 are both a first-stage filter group and a second-stage filter group of 0.1um-0.22um, so as to prevent leakage caused by breakage of filter elements.

s100, preprocessing, sealing the sterilizer, and heating for sterilization;

s200, performing vacuum treatment, namely exhausting air and steam in the tank body 100;

s300, heating for sterilization, and starting the heater 180 to sterilize.

The pretreatment in the step S100 is specifically to close all valves to seal the tank body 100, heat the pipeline of the tank body 100 to 120 ℃ and keep the temperature for 5-10 min for inactivation treatment, control the heater 180 to start and heat to 105 ℃ after reheating to enable the detection temperature of all temperature sensors to be higher than 105 ℃, completely sterilize the tank body 100 before sterilization, ensure sterilization effect and prevent cross contamination; the purpose of pretreatment is to eliminate virus, because the virus cannot be intercepted by filtration, bacteria can be intercepted by the filtration method, but the virus is 100 times smaller than the bacteria, so the virus must be firstly disinfected by the pretreatment method, disinfection and disinfection are two different categories, the disinfection is 99.9 percent, but the disinfection is 99.999999 percent, the-lg 6 must be achieved, and spores must be killed.

The vacuum treatment in step S200 is specifically to discharge all air and steam in the tank 100 through the exhaust pipe 220, and start the heater 180 to generate steam, thereby completing the saturated steam replacement;

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A biosafety sterilizer, comprising: the sterilizer comprises a tank body (100), the tank body (100) comprises an upper layer basket (140), a lower layer basket (150) and a heating chamber (170), a heater (180) is arranged in the heating chamber (170), a basket bottom plate (160) is arranged between the lower layer basket (150) and the heating chamber (170), the edge of the basket bottom plate (160) is provided with an opening for steam in the heating chamber (170) to rise, an exhaust pipe (220) is arranged at the center of the basket bottom plate (160), the exhaust pipe (220) penetrates through the heating chamber (170) and the tank body (100) outer side, one section of the exhaust pipe (220) outside the tank body (100) is communicated with a first biological filter (221), and the tank body (100) top is provided with a pipeline communicated with a second biological filter (270).

2. A biosafety sterilizer as claimed in claim 1, wherein: the second biological filter (270) is communicated with a vacuum pump (290), an electric ball valve (280) is arranged between the vacuum pump (290) and the second biological filter (270), and pipelines at two ends of the first biological filter (221) and the second biological filter (270) are respectively provided with a differential pressure gauge.

3. A biosafety sterilizer as claimed in claim 1, wherein: be equipped with temperature-sensing ware seven (267) on first (221) of biological filter, first (221) of biological filter has cooling tube (231) through the pipeline intercommunication, still be equipped with solenoid valve (222) between first (221) of biological filter and cooling tube (231), cooling tube (231) set up in water storage box (230), water storage box (230) are through pipeline and heating chamber (170) intercommunication, be equipped with high-pressure water pump (212) between water storage box (230) and heating chamber (170), be equipped with check valve one (211) between high-pressure water pump (212) and the heating chamber (170), be equipped with temperature-sensing ware four (264) on check valve one (211).

4. A biosafety sterilizer as claimed in claim 1, wherein: the utility model discloses a jar body, including jar body (100), jar body (100) still is equipped with fast open pot cover (110), be equipped with sealing washer (120) on the contact surface of fast open pot cover (110) and jar body (100), be equipped with temperature-sensing ware three (263) on jar body (100), jar body (100) outside still is equipped with heat preservation (130).

5. A biosafety sterilizer as claimed in claim 2, wherein: and a first temperature sensor (261) is arranged on a pipeline communicated with the tank body (100) of the second biological filter (270), and a second temperature sensor (262) is arranged on the second biological filter (270).

6. A biosafety sterilizer as claimed in claim 3, wherein: a branch is arranged on a pipeline between the one-way valve I (211) and the heating cavity (170), the branch is communicated with a first drain valve (251), a fifth temperature sensor (265) is arranged in the branch, and a sixth temperature sensor (266) is arranged in the first drain valve (251).

7. A biosafety sterilizer as claimed in claim 3, wherein: the outlet of the cooling pipe (231) is communicated with a waste water tank (240) through a pipeline, and the waste water tank (240) is provided with an overflow pipe (241).

8. A biosafety sterilizer as claimed in claim 3, wherein: the water storage tank (230) is provided with a water tank drain pipe (232), and the water tank drain pipe (232) is provided with a second drain valve (252).

9. The operation method of the biosafety sterilizer is characterized by comprising the following steps:

s100, preprocessing, sealing the sterilizer, and heating for sterilization;

s200, performing vacuum treatment, namely exhausting air and steam in the tank body (100);

s300, heating for sterilization, and starting a heater (180) to sterilize.

10. The method of operating a biosafety sterilizer of claim 9, wherein:

the pretreatment in the step S100 is specifically to close all valves to seal the tank body (100), heat the pipeline of the tank body (100) for 100 ℃, keep the inactivation treatment for 5min, heat again to make the detection temperature of all temperature sensors be more than 105 ℃, and control the heater (180) to start and heat to 105 ℃;

the vacuum treatment in the step S200 is to discharge all air and steam in the tank body (100) through the exhaust pipe (220), and start the heater (180) to generate steam to complete saturated steam replacement;