Medical waste air-exchangeable refrigeration house with membrane filtration exhaust device

Abstract

The utility model relates to a medical waste breathable refrigeration house with a membrane filtration exhaust device, which comprises a medical waste refrigeration house, the top of the medical waste refrigeration house is provided with an upper exhaust assembly, and the bottom of the right side of the medical waste refrigeration house is provided with a lower air inlet assembly; the lower air inlet assembly comprises a lower air inlet window formed in the side face of the medical waste refrigeration house, a lower air inlet window moving cover plate guide rail is fixed to the position, corresponding to the lower air inlet window, of the side face of the medical waste refrigeration house, and a lower air inlet window moving cover plate capable of moving front and back is arranged in the lower air inlet window moving cover plate guide rail. The upper air exhaust assembly comprises an upper air exhaust window formed in the medical waste refrigeration house, an upper air exhaust window moving guide rail is fixed to the position, corresponding to the upper air exhaust window, of the medical waste refrigeration house, and an upper air exhaust window moving cover plate capable of moving front and back is arranged in the upper air exhaust window moving guide rail. The refrigeration house adopts an upper-discharging and lower-feeding mode, so that air outside the refrigeration house can enter conveniently, and air convection in the refrigeration house is promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical waste cold storage, in particular to a medical waste ventilated cold storage with a membrane filtering exhaust device. Background Art

[0002] Since medical waste contains various bacteria and viruses and is highly contagious, it is generally listed as the highest level of hazardous waste by countries around the world. There are strict regulatory requirements for its storage, transportation, transfer and sterilization. Among them, the storage cold storage of medical waste is also an important link. According to the regulatory requirements, all production enterprises engaged in medical waste disposal must set up cold storage with a temperature limit of 0-5℃. As a medical waste cold storage, a large amount of infectious, pathological and damaging waste collected from hospitals contains a large number of pathogens. Even if it is wrapped in packaging bags and boxes, the closed air in the cold storage will be contaminated. However, workers are often required to carry out handling operations in the cold storage, and such a closed environment with poor air circulation will affect the health of the operators. In order to prevent the spread and spread of bacteria, the cold storage will never use simple outdoor direct exhaust ventilation to pollute the environment; nor can it be directly introduced into the factory exhaust gas treatment system, because the factory exhaust gas treatment is aimed at the volatile organic matter VOC and odorous gases in the production process, which will not work for the disinfection of pathogens. Therefore, germs that have not been reliably disinfected directly enter the waste gas treatment system and spread, causing pollution to equipment, facilities and the environment.

[0003] The ventilation of cold storage is different from that of general rooms. It mainly controls the ventilation flow rate to ensure that the temperature inside the cold storage is within the range of 0-5℃, and the storage environment temperature must not exceed its upper limit. In addition, due to the difference in ambient temperature inside and outside the cold storage, the air density is different. The difference in air density inside and outside the cold storage causes the cold storage wall to produce inward contraction pressure. When the temperature difference between the inside and outside of the cold storage is 1℃, the atmosphere will produce a pressure of about 40Pa on the enclosure structure (insulation board). The greater the temperature difference, the greater the pressure difference. If the pressure difference is not eliminated in time or controlled within a certain range, the cold storage body will be damaged.

[0004] Therefore, a medical waste ventilated cold storage with a membrane filtration exhaust device is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a medical waste ventilated cold storage with a membrane filtration exhaust device, which has the advantages of balancing the air pressure inside and outside the cold storage, effectively blocking the escape of bacteria, and having high safety. It solves the problem that pathogens that have not been reliably sterilized directly enter the waste gas treatment system and then spread and spread, causing pollution to equipment, facilities and the environment, and if the pressure difference is not eliminated in time or controlled within a certain range, the storage body will be damaged.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medical waste ventilated cold storage with a membrane filtration exhaust device, comprising a medical waste cold storage, an upper exhaust assembly is provided on the top of the medical waste cold storage, and a lower air inlet assembly is provided on the bottom of the right side of the medical waste cold storage;

[0007] The lower air inlet assembly includes a lower air inlet window opened on the side of the medical waste cold storage, a lower air inlet window movable cover plate guide rail is fixed on the side of the medical waste cold storage and corresponding to the lower air inlet window, and a lower air inlet window movable cover plate that can move forward and backward is arranged in the lower air inlet window movable cover plate guide rail;

[0008] The upper exhaust assembly includes an upper exhaust window opened on the medical waste cold storage, an upper exhaust window moving guide rail is fixed on the medical waste cold storage and corresponding to the upper exhaust window, an upper exhaust window moving cover plate that can move forward and backward is arranged in the upper exhaust window moving guide rail, an axial flow fan is fixed on the upper exhaust window moving guide rail through an air inlet channel, a filter membrane stainless steel shell is connected to the upper exhaust window moving guide rail through a pipeline, a filter membrane core assembly is arranged in the filter membrane stainless steel shell, and an air outlet of the filter membrane stainless steel shell is connected to a small ultraviolet box through a pipeline.

[0009] Furthermore, a lower cylinder fixing frame is fixed in the lower air inlet window movable cover guide rail, and a lower air inlet window movable cover cylinder is connected to the lower cylinder fixing frame through a fixed hinge at the rear end of the lower cylinder, and the output end of the lower air inlet window movable cover cylinder is connected to the lower air inlet window movable cover.

[0010] Furthermore, a lower air inlet window movable cover frame is fixed to the outer side of the lower air inlet window movable cover, a lower air inlet window movable cover sliding strip is also provided on the lower air inlet window movable cover guide rail, and a lower air inlet window movable cover sealing strip in contact with the lower air inlet window movable cover frame is fixed to the side of the medical waste cold storage.

[0011] Furthermore, a stainless rat-proof net is provided in the lower air inlet window.

[0012] Furthermore, a fan air collecting hood is fixed on the upper exhaust window moving guide rail through the air inlet channel, the fan air collecting hood is connected to an electric regulating valve through a pipeline, and the other end of the electric regulating valve is connected to the filter membrane stainless steel shell through a pipeline.

[0013] Furthermore, the air outlet of the filter membrane stainless steel housing is connected to a vortex flowmeter through a pipeline, and the air outlet of the vortex flowmeter is connected to a small ultraviolet box through a pipeline.

[0014] Furthermore, an upper exhaust window movable cover plate cylinder is connected in the upper exhaust window movable guide rail, and an output end of the upper exhaust window movable cover plate cylinder is connected to the upper exhaust window movable cover plate.

[0015] Furthermore, an upper exhaust window movable cover plate sliding support strip and an upper exhaust window movable cover plate sealing strip are fixed to the medical waste cold storage, and an upper exhaust window movable cover plate frame in contact with the upper exhaust window movable cover plate sealing strip is fixed to the outer side of the upper exhaust window movable cover plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] The medical waste ventilated cold storage with membrane filtration exhaust device uses a filter core assembly to perform regular ventilation in the cold storage according to the characteristics of the bacteria in the air of the medical waste cold storage. The membrane material is polytetrafluoroethylene (PTFE) with a pore size of ≤0.2μm. The filter core has the characteristics of hydrophobicity and heat resistance, which can effectively block the escape of bacteria and has high safety. The number of filter cores can be determined according to the flow rate of the air.

[0018] The cold storage adopts the top-out and bottom-in method because the temperature at the bottom of the cold storage is the lowest and the pressure difference between the inside and outside of the storage is the largest, which is conducive to the entry of external air into the cold storage. The newly entered air flows upward due to the temperature difference, promoting air convection inside the storage and improving the air quality inside the storage.

[0019] The upper exhaust window and the lower air inlet window are opened and closed by cylinder translation, which is conducive to automatic control. When the cold storage is ventilated under normal conditions of 0-5℃, the upper exhaust window and the lower air inlet window are opened and closed at the same time, which is conducive to air replacement. If for some reason, when the temperature of the cold storage is ≤0℃, only the lower air inlet window can be opened to allow outside air to enter, and the internal and external pressure difference can be adjusted by heating to prevent the excessive pressure difference between the inside and outside of the storage caused by the temperature drop from causing damage to the enclosure. It is equivalent to the role of the cold storage pressure balance window, which effectively protects the structural facilities of the cold storage and prevents the excessive pressure difference between the inside and outside of the storage caused by the temperature drop from causing damage to the enclosure.

[0020] In addition, a small ultraviolet box installed behind the upper exhaust filter element assembly can decompose a small amount of other harmful gases remaining in the gas, achieving the effect of air purification and disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the lower air inlet assembly of the utility model;

[0023] Figure 3 This is a schematic diagram of the utility model when the lower air inlet window is opened;

[0024] Figure 4 This is a schematic diagram of the upper exhaust assembly of the utility model;

[0025] Figure 5 This is a schematic diagram of the upper exhaust window of the utility model when it is opened and closed;

[0026] Figure 6 This is a schematic diagram of the sliding support strip of the upper exhaust window movable cover of the utility model;

[0027] Figure 7 It is a schematic diagram of the axial flow fan of the utility model.

[0028] In the figure: 1. Medical waste cold storage; 2. Upper exhaust window movable cover frame; 3. Upper exhaust window; 4. Axial flow fan; 5. Fan air collecting cover; 6. Upper exhaust window movable cover sealing strip; 7. Upper exhaust window movable guide rail; 8. Electric regulating valve; 9. Filter membrane stainless steel shell; 10. Filter membrane core assembly; 11. Vortex flowmeter; 12. Small UV box; 13. Upper exhaust window movable cover cylinder; 14. Upper exhaust window movable cover cylinder retraction stop point; 15. Upper exhaust window movable cover cylinder extension stop point; 16. Upper exhaust window movable cover; 17. Upper exhaust window movable cover sliding support strip; 18. Lower air inlet window movable cover sealing strip; 19. Lower air inlet window movable cover guide rail; 20. Lower air inlet window movable cover; 21. Lower air inlet window movable cover frame; 22. Lower air inlet window movable cover sliding strip; 23. Lower air inlet window stainless mouse screen; 24. Lower cylinder hinge retraction stop point; 25. Lower air inlet window movable cover cylinder; 26. Lower cylinder tail end fixed hinge; 27. Lower cylinder fixing frame; 28. Lower air inlet window. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-7 In this embodiment, a medical waste ventilated cold storage with a membrane filtration exhaust device includes a medical waste cold storage 1. An upper exhaust assembly is provided on the top of the medical waste cold storage 1, and a lower air inlet assembly is provided on the bottom of the right side of the medical waste cold storage 1. The medical waste cold storage 1 is ventilated by the upper exhaust assembly and the lower air inlet assembly. The upper exhaust and lower inlet method is adopted because the temperature at the bottom of the cold storage is the lowest and the pressure difference between the inside and outside of the storage is the largest, which is conducive to the entry of external air into the cold storage. The newly entered air flows upward due to the temperature difference, which promotes air convection in the storage and improves the air quality in the storage.

[0031] Air enters the medical waste cold storage 1 through the lower air inlet assembly. Figure 2-3As shown, the lower air inlet component includes a lower air inlet window 28 opened on the side of the medical waste cold storage 1, and air can enter the medical waste cold storage 1 through the lower air inlet window 28. A lower air inlet window movable cover guide rail 19 is fixed on the side of the medical waste cold storage 1 and corresponds to the lower air inlet window 28. A lower air inlet window movable cover 20 that can move forward and backward is provided in the lower air inlet window movable cover guide rail 19. The lower air inlet window movable cover 20 that moves forward and backward can realize the opening and closing of the lower air inlet window 28.

[0032] like Figure 3 As shown, a lower cylinder fixing frame 27 is fixed in the lower air inlet window movable cover plate guide rail 19, and a lower air inlet window movable cover plate cylinder 25 is connected to the lower cylinder fixing frame 27 through a lower cylinder tail end fixed hinge 26, and the output end of the lower air inlet window movable cover plate cylinder 25 is connected to the lower air inlet window movable cover plate 20, and a lower air inlet window movable cover plate frame 21 is fixed to the outer side of the lower air inlet window movable cover plate 20, and a lower air inlet window movable cover plate sliding bar 22 is also provided on the lower air inlet window movable cover plate guide rail 19, and the sliding bar is made of nylon-66. When the lower air inlet window movable cover plate cylinder 25 automatically retracts and retracts, it can drive the lower air inlet window movable cover plate 20 to move forward and backward, Figure 3 In the state shown, the lower air inlet window movable cover cylinder 25 is at the lower cylinder hinge retraction stop point 24, the lower air inlet window 28 is in an open state, and air can enter the medical waste cold storage 1 through the lower air inlet window 28.

[0033] In order to ensure the sealing of the medical waste cold storage 1 when the lower air inlet window 28 is closed, a lower air inlet window movable cover sealing strip 18 in contact with the lower air inlet window movable cover frame 21 is fixed to the side of the medical waste cold storage 1. When the lower air inlet window movable cover 20 slides to cover the lower air inlet window 28, the lower air inlet window movable cover frame 21 is in contact with the lower air inlet window movable cover sealing strip 18, and the lower air inlet window movable cover sealing strip 18 can play a sealing role.

[0034] In addition, a lower air inlet window stainless rat-blocking net 23 is provided in the lower air inlet window 28, which can prevent rats from entering and spreading germs when the lower air inlet window movable cover 20 is opened.

[0035] The air enters the medical waste cold storage 1 through the lower air intake assembly, and the air in the storage is discharged by the upper exhaust assembly. Figure 4-7As shown, the upper exhaust assembly includes an upper exhaust window 3 opened on the medical waste cold storage 1, an upper exhaust window moving guide rail 7 is fixed on the medical waste cold storage 1 and corresponding to the upper exhaust window 3, an upper exhaust window moving cover 16 that can move forward and backward is arranged in the upper exhaust window moving guide rail 7, and the upper exhaust window 3 can be opened and closed, an upper exhaust window moving cover frame 2 is fixed to the outer side of the upper exhaust window moving cover 16, an axial flow fan 4 is fixed on the upper exhaust window moving guide rail 7 through an air inlet channel, a fan air collecting hood 5 is fixed on the upper exhaust window moving guide rail 7 through the air inlet channel, the fan air collecting hood 5 is connected to an electric regulating valve 8 through a pipeline, the other end of the electric regulating valve 8 is connected to a filter membrane stainless steel shell 9 through a pipeline, a filter membrane core assembly 10 is arranged in the filter membrane stainless steel shell 9, an air outlet of the filter membrane stainless steel shell 9 is connected to a vortex flowmeter 11 through a pipeline, and an air outlet of the vortex flowmeter 11 is connected to a small ultraviolet box 12 through a pipeline. The air in the warehouse is discharged from the upper exhaust window 3, sent to the filter membrane stainless steel housing 9 through the axial flow fan 4, filtered through the filter membrane core assembly 10, and then enters the small ultraviolet box 12 for disinfection after passing through the vortex flowmeter 11 before being discharged. The exhausted gas can enter the factory waste gas collection and treatment facilities as required and then be discharged uniformly. Among them, the function of the electric regulating valve 8 is to balance the exhaust air volume for easy adjustment. The vortex flowmeter 11 can also measure the exhaust air volume and observe the instantaneous flow.

[0036] As for how the upper air window movable cover plate 16 moves forward and backward, Figure 5 As shown, an upper exhaust window moving cover plate cylinder 13 is connected to the upper exhaust window moving guide rail 7 through a hinge, and the output end of the upper exhaust window moving cover plate cylinder 13 is connected to the upper exhaust window moving cover plate 16 through a hinge. When the upper exhaust window 3 needs to be opened for exhaust, the upper exhaust window moving cover plate cylinder 13 is retracted, and the upper exhaust window moving cover plate cylinder 13 is retracted to the upper exhaust window moving cover plate cylinder retraction stop point 14, and the upper exhaust window moving cover plate 16 no longer blocks the upper exhaust window 3, and when the upper exhaust window 3 needs to be closed, the upper exhaust window moving cover plate cylinder 13 is pushed out, and the upper exhaust window moving cover plate cylinder 13 is pushed out to the upper exhaust window moving cover plate cylinder extension stop point 15, and the upper exhaust window moving cover plate 16 can block the upper exhaust window 3 and no longer exhaust.

[0037] In addition, a pair of upper exhaust window movable cover sliding support strips 17 and a pair of upper exhaust window movable cover sealing strips 6 are fixed on the medical waste cold storage 1. When the upper exhaust window movable cover 16 slides, it contacts with the upper exhaust window movable cover sealing strip 6 and the upper exhaust window movable cover sliding support strip 17 respectively. When the upper exhaust window movable cover 16 slides back and forth, it can prevent air outside the storage from entering the cold storage.

[0038] Moreover, in the closed state, the weight of the cover is supported on the sealing strip. When pushed or pulled, there is friction between the cover and the sealing strip. Because the cover is a foam board, it has a small area, light weight and low force, and the friction with the rubber strip is elastic. While ensuring sealing, the friction is small, which can reduce wear.

[0039] According to the characteristics of pathogens in the air of the medical waste cold storage 1, the air in the storage is discharged from the upper exhaust window 3 and can be purified by the filter membrane core assembly 10, so as to perform regular ventilation in the cold storage. Among them, the membrane material used in the filter membrane core assembly 10 is polytetrafluoroethylene PTFE with a pore size of ≤0.2μm. The filter element has the characteristics of hydrophobicity and heat resistance, which can effectively block the escape of bacteria and has high safety. And the number of filter elements can be determined according to the flow rate of the wind. The small ultraviolet disinfection device 12 set behind the upper exhaust filter membrane core assembly 10 can decompose a small amount of other harmful gases remaining in the gas, playing the role of air purification and disinfection.

[0040] When the lower air inlet assembly and the upper air exhaust assembly are working, if the temperature of the cold storage is normally between 0-5℃, the lower air inlet window movable cover plate 20 and the upper air exhaust window movable cover plate 16 are linked to open and close at the same time, which is conducive to air replacement to ensure air convection in the cold storage and pressure balance inside and outside the cold storage. If for some reason, when the temperature of the cold storage is ≤0℃, in order to prevent the excessive pressure difference between the inside and outside of the storage caused by the temperature drop from causing damage to the enclosure, only the lower air inlet window 28 is opened to allow external air to enter, and the pressure difference between the inside and outside is adjusted by heating, which is equivalent to the role of the cold storage pressure balance window, effectively protecting the structural facilities of the cold storage.

[0041] By adopting the above-mentioned medical waste ventilation cold storage with membrane filtration exhaust device, the cold storage can be exhausted and ventilated, and the possibility of pathogens in the cold storage entering the exhaust gas and causing environmental pollution can be reduced. The specific ventilation method is as follows:

[0042] When ventilation is required, the computer timer gives a signal, the upper exhaust window movable cover cylinder 13 retracts, and is at the upper exhaust window movable cover cylinder retraction stop point 14 position, the upper exhaust window movable cover 16 falls on the upper exhaust window movable cover sliding support bar 17, and the axial flow fan (4) starts to rotate at this time, passes through the fan air collecting cover 5 and is balanced by the electric regulating valve 8. The air volume enters the filter membrane stainless steel shell 9 and is filtered by the filter membrane core assembly 10, and then is measured by the vortex flowmeter 11 and enters the small ultraviolet box 12 for discharge. The exhausted gas can enter the factory waste gas collection and treatment facilities as required and then be discharged uniformly.

[0043] At the same time, when the temperature of the cold storage is normally between 0 and 5°C, the lower air inlet window movable cover 20 and the upper air outlet window movable cover 16 are linked and opened and closed at the same time to ensure air convection in the cold storage and pressure balance inside and outside the cold storage.

[0044] When the temperature of the cold storage is ≤0℃, in order to prevent the pressure difference between the inside and outside of the cold storage from being too large due to the temperature drop, which may cause the enclosure to be damaged, only the lower air inlet window 28 is opened to allow outside air to enter. By increasing the temperature, the pressure difference between the inside and outside is adjusted, and the structural facilities of the cold storage are effectively protected.

[0045] The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical waste ventilated cold storage with a membrane filtration exhaust device, characterized in that: It comprises a medical waste cold storage (1), wherein an upper exhaust assembly is provided at the top of the medical waste cold storage (1), and a lower air inlet assembly is provided at the bottom of the right side of the medical waste cold storage (1); The lower air inlet assembly comprises a lower air inlet window (28) opened on the side of the medical waste cold storage (1); a lower air inlet window movable cover plate guide rail (19) is fixed on the side of the medical waste cold storage (1) and corresponding to the lower air inlet window (28); a lower air inlet window movable cover plate (20) movable forward and backward is arranged in the lower air inlet window movable cover plate guide rail (19); The upper exhaust assembly comprises an upper exhaust window (3) opened on the medical waste cold storage (1); an upper exhaust window movable guide rail (7) is fixed on the medical waste cold storage (1) and corresponding to the upper exhaust window (3); an upper exhaust window movable cover plate (16) movable forward and backward is arranged in the upper exhaust window movable guide rail (7); an axial flow fan (4) is fixed on the upper exhaust window movable guide rail (7) through an air inlet channel; a filter membrane stainless steel shell (9) is connected to the upper exhaust window movable guide rail (7) through a pipeline; a filter membrane core assembly (10) is arranged in the filter membrane stainless steel shell (9); and an air outlet of the filter membrane stainless steel shell (9) is connected to a small ultraviolet box (12) through a pipeline.

2. A medical waste ventilated cold storage with a membrane filtration exhaust device according to claim 1, characterized in that: A lower cylinder fixing frame (27) is fixed inside the lower air inlet window movable cover plate guide rail (19), and a lower air inlet window movable cover plate cylinder (25) is connected to the lower cylinder fixing frame (27) via a lower cylinder tail end fixed hinge (26), and an output end of the lower air inlet window movable cover plate cylinder (25) is connected to the lower air inlet window movable cover plate (20).

3. A medical waste ventilated cold storage with a membrane filtration exhaust device according to claim 1, characterized in that: A lower air inlet window movable cover frame (21) is fixed on the outer side of the lower air inlet window movable cover (20), a lower air inlet window movable cover sliding strip (22) is also provided on the lower air inlet window movable cover guide rail (19), and a lower air inlet window movable cover sealing strip (18) in contact with the lower air inlet window movable cover frame (21) is fixed on the side of the medical waste cold storage (1).

4. A medical waste ventilated cold storage with a membrane filtration exhaust device according to claim 1, characterized in that: A lower air inlet window stainless rat-blocking net (23) is arranged inside the lower air inlet window (28).

5. The medical waste ventilated cold storage with membrane filtration exhaust device according to claim 1, characterized in that: A fan air collecting hood (5) is fixed on the upper air exhaust window movable guide rail (7) through an air inlet channel, and the fan air collecting hood (5) is connected to an electric regulating valve (8) through a pipeline, and the other end of the electric regulating valve (8) is connected to the filter membrane stainless steel shell (9) through a pipeline.

6. A medical waste ventilated cold storage with a membrane filtration exhaust device according to claim 1, characterized in that: The air outlet of the filter membrane stainless steel housing (9) is connected to a vortex flowmeter (11) via a pipeline, and the air outlet of the vortex flowmeter (11) is connected to a small ultraviolet box (12) via a pipeline.

7. The medical waste ventilated cold storage with membrane filtration exhaust device according to claim 1, characterized in that: An upper exhaust window movable cover plate cylinder (13) is connected inside the upper exhaust window movable guide rail (7), and an output end of the upper exhaust window movable cover plate cylinder (13) is connected to an upper exhaust window movable cover plate (16).

8. The medical waste ventilated cold storage with membrane filtration exhaust device according to claim 1, characterized in that: The medical waste cold storage (1) is fixed with an upper exhaust window movable cover plate sliding support strip (17) and an upper exhaust window movable cover plate sealing strip (6), and an upper exhaust window movable cover plate frame (2) in contact with the upper exhaust window movable cover plate sealing strip (6) is fixed on the outer side of the upper exhaust window movable cover plate (16).

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