CN116077705A

CN116077705A - Tail gas sterilizer of medical negative pressure suction system

Info

Publication number: CN116077705A
Application number: CN202211595105.7A
Authority: CN
Inventors: 杨战; 朱仕丹
Original assignee: Xiamen Dusen Medical Technology Co ltd
Current assignee: Xiamen Dusen Medical Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-09

Abstract

The invention relates to a tail gas sterilizer of a medical negative pressure suction system, which comprises a base and an upper cover, wherein a gas inlet and outlet channel is arranged in the base, two ends of the gas inlet and outlet channel are respectively communicated with an air inlet pipe and an air outlet pipe, the upper cover is clamped and sleeved on the front side of the base, two ends of the upper cover are respectively provided with an inlet and outlet axial flow fan, the inlet and outlet axial flow fans are respectively arranged at the lower ends of the air inlet pipe and the air outlet pipe, UV (ultraviolet) lamp tubes are arranged in parallel at the middle part of the upper cover, the UV lamp tubes are respectively correspondingly arranged in the gas inlet and outlet channel, a PTC (positive temperature coefficient) ceramic electric heater is arranged at the bottom of the wind direction rotation position of the lower end of the gas inlet and outlet channel, and a temperature control sensing module and a smoke sensing module are fixedly arranged at the upper part of the inner wall of the upper cover. The novel high-efficiency sterilization device is reasonable in structural layout, high in integration of related functional modules, small in size, convenient to install and maintain, efficient in sterilization, safe and reliable.

Description

Tail gas sterilizer of medical negative pressure suction system

Technical Field

The present application relates to an exhaust sterilizer for a medical negative pressure suction system.

Background

The medical negative pressure suction system is also called a central suction system, has wide application range and simple and convenient operation, and is mainly used for diagnosing and treating links for sucking and removing phlegm, blood, concentration and other in-vivo dirt. Not only improves ward environment, lightens the manual labor of medical staff, but also ensures that the suction force is continuous and available at any time, thereby greatly improving the curative effect. The central suction system is suitable for inpatient wards, in particular for operating rooms, guardianship rooms and rescue rooms.

The medical vacuum negative pressure unit is used as power equipment of a medical negative pressure suction system, and exhaust gas is required to be discharged when a negative pressure suction source is provided. The tail gas contains bacteria, viruses and the like, so that a tail gas sterilizer is arranged at the exhaust end of the medical vacuum negative pressure unit, the tail gas containing the bacteria and the viruses is ensured to be sterilized, and the tail gas is prevented from being emptied and infected.

The tail gas sterilization facilities are not arranged at the tail gas discharge end of the medical negative pressure suction system of most hospitals, and the tail gas discharge ports are not arranged in areas far away from canteens, wards and the like of the hospitals, so that the risk of repeated infection of viruses or bacteria with strong infectious diseases in the hospitals can be increased. The tail gas sterilizer of the present application is in compliance with the need.

Disclosure of Invention

The technical problem that proposes among the background art is solved to this application, provides a medical negative pressure suction system's tail gas sterilizer, and structural layout is reasonable, and relevant functional module highly integrated is small, and installation maintenance is convenient, high-efficient sterilization, safe and reliable.

In order to solve the technical problems, the technical scheme provided by the application is as follows: the utility model provides a tail gas sterilizer of medical negative pressure suction system, includes base and upper cover, be provided with the gaseous business turn over passageway of W form in the base, the both ends of gaseous business turn over passageway are provided with air-supply line and play tuber pipe in the intercommunication respectively, upper cover joint cover is established the base front side, be provided with respectively at upper portion both ends in the upper cover and import and export axial fan, import and export axial fan and set up respectively in the lower extreme position department of air-supply line and play tuber pipe, be provided with the UV fluorescent tube in the upper cover in its middle part position department side by side, the UV fluorescent tube corresponds the setting respectively in the gaseous business turn over passageway, the bottom of the wind direction gyration position department of its lower extreme in the gaseous business turn over passageway is provided with PTC ceramic electric heater, upper cover inner wall upper portion is fixed to be provided with control by temperature sensing module and smog sensing module, control by temperature sensing module and smog sensing module all set up in gaseous business turn over passageway.

Further, the base includes the base box, be provided with three baffle in the base box, three the baffle is fixed in proper order equidistance on the top and bottom wall in the base box to form gas business turn over passageway, the wind direction gyration position department of its lower part is provided with the samming orifice plate in the gas business turn over passageway, PTC ceramic electric heater sets up the below of samming orifice plate.

Further, the top of the upper cover is provided with a limit clamping groove corresponding to the air inlet pipe and the air outlet pipe, and the upper cover is fixed with the base through fastening screws.

Further, be provided with the upper cover cavity in the front portion of upper cover, the upper cover cavity embeds there is the control mainboard, import and export axial fan, UV fluorescent tube, PTC ceramic electric heater, control by temperature change sensing module and smoke sensing module all electric connection control mainboard, the upper cover cavity is provided with the cavity apron in its installing port position department, the upper cover cavity is provided with switch power supply panel on its preceding lateral wall, be provided with power indicator, warning buzzer and push button switch on the switch power supply panel, and equal electric connection control mainboard.

Further, the top and bottom of the upper cover cavity are provided with heat dissipation holes.

Further, a guide cylinder fixed on the inner wall of the upper cover is arranged outside the inlet/outlet axial flow fan.

Further, the UV lamp tube is arranged on a lamp tube clamping groove seat, and the lamp tube clamping groove seat is fixed on the inner wall of the upper cover.

Further, the PTC ceramic electric heater is fixed on an electric heater fixing plate at the bottom of the PTC ceramic electric heater, and the electric heater fixing plate is fixed on the inner wall of the upper cover.

The application has the following advantages: the tail gas sterilizer is structurally simple in cavity arrangement and beneficial to exhaust; the length of the cavity channel ensures that the residence time of the tail gas in the cavity channel of the sterilizer is more than 1s, and the tail gas is fully contacted with the UV lamp tube and the PTC ceramic electric heater, thereby ensuring the sterilization effect of the tail gas. An axial flow fan is arranged at the inlet and the outlet of the tail gas sterilizer, so that the suction wind pressure of the axial flow fan counteracts the resistance of tail gas exhaust in the cavity and smooth exhaust of the tail gas is ensured.

The method is mature and reliable in sterilization process, is novel in medical industry, is applicable to environmental protection and food industry for many years, is safer and more environment-friendly than the tail gas sterilizer adopting the active carbon adsorption process in the current market (active carbon is easy to burn when encountering open fire, fire safety problems are easy to occur if the tail gas sterilizer breaks down and fires, and the active carbon adsorption saturation needs to be replaced regularly, the waste active carbon belongs to dangerous waste, and needs to be uniformly recycled and treated by units with treatment qualification, so that certain environmental protection problem exists).

The tail gas sterilizer of the application has the following advantages:

1. the tail gas sterilizer has small product volume and very convenient installation, and can be directly connected with a tail gas discharge pipe;

2. the structure layout is novel and reasonable, and the related functional modules are highly integrated;

3. the product has simple appearance, simple use and convenient maintenance;

4. the sterilization process adopted by the tail gas sterilizer is mature and reliable;

5. the tail gas sterilizer has good sealing performance, and the tail gas does not overflow, and is provided with a temperature control sensing module and a smoke sensing module, so that the electric safety use of the tail gas sterilizer is practically ensured.

Drawings

Fig. 1 is a schematic perspective view of the entire front side according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the entire rear side according to an embodiment of the present invention.

Fig. 3 is a schematic view illustrating an internal structure of a base according to an embodiment of the present invention.

Fig. 4 is a schematic view showing an internal structure of the upper cover according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of the overall internal assembly according to an embodiment of the invention.

As shown in the figure: 1. a base; 2. an upper cover; 3. a base box; 4. an air inlet pipe; 5. an air outlet pipe; 6. a baffle; 7. an air equalizing plate; 8. an inlet/outlet axial flow fan; 9. a UV lamp tube; 10. a lamp tube clamping groove seat; 11. PTC ceramic electric heater; 12. an electric heater fixing plate; 13. a cavity cover plate; 14. a switching power supply panel; 15. a temperature control sensing module; 16. a smoke sensing module; 17. a power indicator light; 18. an alarm buzzer; 19. a push button switch; 20. and the heat dissipation holes.

Detailed Description

The present application is described in further detail below with reference to examples.

When the application is specifically implemented, the sterilization process adopted by the tail gas sterilizer is mature and safe, is applicable to the environmental protection and food industry, and belongs to novel process equipment in the medical industry.

This application adopts vertical overall arrangement, comprises base 1, upper cover 2 and the fastening screw of connection. The combined drawing 1-5 shows that the device comprises a base 1 and an upper cover 2, wherein a W-shaped gas inlet and outlet channel is arranged in the base 1, two ends of the gas inlet and outlet channel are respectively communicated with an air inlet pipe 4 and an air outlet pipe 5,

the upper cover 2 includes: the solar energy power generation device comprises an upper cover cavity, an inlet and outlet axial flow fan 8, a UV lamp tube 9, a lamp tube clamping groove seat 10, a PTC ceramic electric heater 11, an electric heater fixing plate 12, a cavity cover plate 13, a switch power supply panel 14, a temperature control sensing module 15, a smoke sensing module 16, a set screw, a power supply indicator lamp 17, an alarm buzzer 18 and a push button switch 19. The upper cover 2 is arranged on the front side of the base 1 in a clamping and sleeving manner, inlet and outlet axial flow fans 8 are respectively arranged at two ends of the upper part of the upper cover 2, the inlet and outlet axial flow fans 8 are respectively arranged at the lower end positions of the air inlet pipe 4 and the air outlet pipe 5, limiting clamping grooves corresponding to the air inlet pipe 4 and the air outlet pipe 5 are formed in the top of the upper cover 2, and the upper cover 2 and the base 1 are fixed through fastening screws.

The inlet and outlet axial flow fan, the PTC ceramic electric heater and the UV lamp tube are connected with the panel of the switching power supply through circuits for electrifying; the pressure of the tail gas discharged by the medical vacuum negative pressure unit belongs to slightly higher standard atmospheric pressure for exhausting, and the tail gas enters a cavity in the tail gas sterilizer, so that certain resistance exists, and the exhaust of the tail gas can be influenced. Therefore, an axial flow fan is arranged, the suction wind pressure of the axial flow fan counteracts the resistance of exhaust gas in the cavity, and smooth exhaust of the exhaust gas is ensured. The outside of the inlet and outlet axial flow fan 8 is provided with a guide cylinder fixed on the inner wall of the upper cover 2.

UV lamp tubes 9 are arranged in parallel in the upper cover 2 at the middle position of the upper cover, the UV lamp tubes 9 are respectively and correspondingly arranged in the gas inlet and outlet channels, the UV lamp tubes 9 are arranged on lamp tube clamping groove seats 10, and the lamp tube clamping groove seats 10 are fixed on the inner wall of the upper cover 2. The bottom of the wind direction rotation position of the lower end of the gas inlet and outlet passage is provided with a PTC ceramic electric heater 11, the PTC ceramic electric heater 11 is fixed on an electric heater fixing plate 12 at the bottom of the gas inlet and outlet passage, and the electric heater fixing plate 12 is fixed on the inner wall of the upper cover 2. The upper part of the inner wall of the upper cover 2 is fixedly provided with a temperature control sensing module 15 and a smoke sensing module 16, and the temperature control sensing module 15 and the smoke sensing module 16 are arranged in the gas inlet and outlet channel.

The base 1 comprises: the base box body 3, the inlet and outlet pipelines (the air inlet pipe 4 and the air outlet pipe 5) above, the baffle 6 in the box body and the air equalizing hole plate 7 enclose a gas inlet and outlet passage together. The base 1 comprises a base box body 3, three baffle plates 6 are arranged in the base box body 3, the three baffle plates 6 are sequentially fixed on the top and bottom walls in the base box body 3 at equal intervals, a gas inlet and outlet channel is formed, a wind direction rotation position of the lower part of the gas inlet and outlet channel is internally provided with a wind equalizing hole plate 7, and a PTC ceramic electric heater 11 is arranged below the wind equalizing hole plate 7.

An upper cover cavity is provided in the front of the upper cover 2, and the upper cover cavity is provided with heat dissipation holes 20 at the top and bottom thereof. The upper cover cavity is internally provided with a control main board, the inlet and outlet axial flow fan 8, the UV lamp tube 9, the PTC ceramic electric heater 11, the temperature control sensing module 15 and the smoke sensing module 16 are electrically connected with the control main board, the upper cover cavity is provided with a cavity cover plate 13 at the position of an installation opening of the upper cover cavity, the upper cover cavity is provided with a switch power supply panel 14 on the front side wall of the upper cover cavity, and the switch power supply panel 14 is provided with a power supply indicator 17, an alarm buzzer 18 and a push button switch 19 which are electrically connected with the control main board.

If the UV lamp tube 9 and the PTC ceramic electric heater 11 fail, abnormal temperature and even overheat smoke may occur, and potential safety hazard may occur, so the temperature control sensing module 15 and the smoke sensing module 16 are installed in the tail gas sterilizer and connected with the alarm buzzer 18. When the temperature of the tail gas sterilizer exceeds the set threshold value of the potentiometer in the temperature control sensing module 15, a relay in the module is attracted, and the alarm buzzer 18 immediately buzzes and alarms; when the smoke sensing module 16 contacts smoke, the relay in the module is attracted, and the alarm buzzer 18 immediately buzzes and alarms, so that the whole device can be ensured to run safely and reliably.

When the device of this application is in use, do not adopt active carbon adsorption technology in the technology, meet the open flame because of active carbon and burn easily, and active carbon adsorption saturation needs periodic replacement, and useless active carbon belongs to the danger and useless, need have the unified recovery processing of unit of handling the qualification. After the tail gas sterilizer power plug is plugged into the socket, the power indicator lights are on. The push button switch 19 is activated and the power indicator 17 turns green indicating that the tail gas sterilizer is operating. At the moment, an inlet and outlet axial flow fan 8, a PTC ceramic electric heater 11 and a UV lamp tube 9 in the cavity are started to run simultaneously; the UV lamp tube 9 is lighted to generate ultraviolet rays and ionize air to form ozone, and the ultraviolet rays and the ozone have the effects of sterilization and disinfection; the PTC ceramic electric heater 11 of the cavity heats the entering tail gas; the inlet and outlet axial flow fan 8 introduces the tail gas of the tail gas discharge pipe into the cavity of the tail gas sterilizer, and the tail gas is sterilized by three processes of ultraviolet rays, ozone and high temperature, so that almost all bacteria and viruses can be sterilized, the tail gas sterilization effect is realized, and the sterilized tail gas is pumped to the tail end of the tail gas discharge pipe for safe discharge.

While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in construction and details may be made therein without departing from the scope of the invention as defined by the appended claims. The scope of the invention is, therefore, indicated by the appended claims, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A tail gas sterilizer of a medical negative pressure suction system is characterized in that: including base (1) and upper cover (2), be provided with the gaseous business turn over passageway of W form in base (1), the both ends intercommunication respectively of gaseous business turn over passageway are provided with air-supply line (4) and play tuber pipe (5), upper cover (2) joint cover is established base (1) front side, upper cover (2) are interior upper portion both ends are provided with respectively and import and export axial fan (8), import and export axial fan (8) set up respectively air-supply line (4) and play lower extreme position department of tuber pipe (5), be provided with UV fluorescent tube (9) side by side in its middle part position department in upper cover (2), UV fluorescent tube (9) correspond respectively and set up in the gaseous business turn over passageway, the bottom of the wind direction gyration position department of its lower extreme is provided with PTC ceramic electric heater (11) in the gaseous business turn over passageway, upper cover (2) inner wall upper portion is fixed to be provided with temperature control sensing module (15) and smog sensing module (16), temperature control sensing module (15) and smog sensing module (16) all set up in gaseous business turn over passageway.

2. The exhaust sterilizer of the medical negative pressure suction system according to claim 1, wherein: the base (1) comprises a base box body (3), three baffle plates (6) are arranged in the base box body (3), the three baffle plates (6) are sequentially fixed on the top wall and the bottom wall in the base box body (3) at equal intervals, a gas inlet and outlet channel is formed, a wind direction rotation position of the lower part of the gas inlet and outlet channel is internally provided with a wind-homogenizing pore plate (7), and the PTC ceramic electric heater (11) is arranged below the wind-homogenizing pore plate (7).

3. The exhaust sterilizer of the medical negative pressure suction system according to claim 1, wherein: the upper cover (2) is provided with limiting clamping grooves corresponding to the air inlet pipe (4) and the air outlet pipe (5) at the top of the upper cover, and the upper cover (2) is fixed with the base (1) through fastening screws.

4. The exhaust sterilizer of the medical negative pressure suction system according to claim 1, wherein: the novel solar energy control device is characterized in that an upper cover cavity is arranged in the front portion of the upper cover (2), a control main board is arranged in the upper cover cavity, the inlet and outlet axial flow fan (8), the UV lamp tube (9), the PTC ceramic electric heater (11), the temperature control sensing module (15) and the smoke sensing module (16) are electrically connected with the control main board, the upper cover cavity is provided with a cavity cover plate (13) at the position of an installation opening of the upper cover cavity, the upper cover cavity is provided with a switch power supply panel (14) on the front side wall of the upper cover cavity, and a power supply indicator lamp (17), an alarm buzzer (18) and a push button switch (19) are arranged on the switch power supply panel (14) and are electrically connected with the control main board.

5. The exhaust sterilizer of the medical negative pressure suction system according to claim 4, wherein: the top and bottom of the upper cover cavity are provided with heat dissipation holes (20).

6. The exhaust sterilizer of the medical negative pressure suction system according to claim 1, wherein: the outside of the inlet and outlet axial flow fan (8) is provided with a guide cylinder fixed on the inner wall of the upper cover (2).

7. The exhaust sterilizer of the medical negative pressure suction system according to claim 1, wherein: the UV lamp tube (9) is arranged on the lamp tube clamping groove seat (10), and the lamp tube clamping groove seat (10) is fixed on the inner wall of the upper cover (2).

8. The exhaust sterilizer of the medical negative pressure suction system according to claim 1, wherein: the PTC ceramic electric heater (11) is fixed on an electric heater fixing plate (12) at the bottom of the PTC ceramic electric heater, and the electric heater fixing plate (12) is fixed on the inner wall of the upper cover (2).