CN212261977U - Pressure-adjustable waste gas filtering and sterilizing device - Google Patents
Pressure-adjustable waste gas filtering and sterilizing device Download PDFInfo
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- CN212261977U CN212261977U CN202020418942.2U CN202020418942U CN212261977U CN 212261977 U CN212261977 U CN 212261977U CN 202020418942 U CN202020418942 U CN 202020418942U CN 212261977 U CN212261977 U CN 212261977U
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Abstract
The utility model provides an adjustable pressure type waste gas filtering and sterilizing device, which comprises a first-stage buffer tank, a second-stage sterilizing tank and a third-stage pressure adjusting tank, wherein the first-stage buffer tank, the second-stage sterilizing tank and the third-stage pressure adjusting tank are sequentially connected in a ventilating way; the first-stage buffer tank is filled with active carbon, the second-stage disinfection tank is filled with disinfectant, and the third-stage pressure regulation tank is filled with liquid; a pressure regulating pipe is arranged on the third-stage pressure regulating tank, one end of the pressure regulating pipe extends out of the third-stage pressure regulating tank and is communicated with the atmosphere, and the other end of the pressure regulating pipe extends into the position below the liquid level of the liquid in the third-stage pressure regulating tank; the third-stage pressure regulating tank is communicated with a negative pressure device, and the negative pressure device is used for sucking gas entering the third-stage pressure regulating tank by negative pressure. Through the mutual cooperation of the internal system of the waste gas filtering and sterilizing device and the negative pressure device, the internal and external air pressure and attraction of the tank body are balanced, and the high-efficiency filtering and sterilizing of the waste gas discharged by the breathing machine/anesthesia machine are realized.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, especially, relate to an adjustable pressure formula waste gas filtration degassing unit.
Background
Respiratory infectious diseases are infectious diseases caused by invasion of pathogens from respiratory tract infections such as nasal cavities, throats, tracheas, bronchi, and the like of human bodies. Common respiratory infectious diseases include novel coronavirus pneumonia, SARS, influenza, open pulmonary tuberculosis, etc. The main pathogens include viruses, bacteria, mycoplasma, chlamydia and the like. Such as novel coronaviruses, influenza viruses, measles viruses, meningococci, tubercle bacilli, and the like.
Currently, in internal medicine clinic, isolation treatment is generally carried out on respiratory infectious disease patients. As the pathogens are easily brought into the air without any disinfection and purification in the process of expiration and inspiration of a patient, the density of the pathogens in unit volume in a ward is increased, high risk groups are seriously threatened, medical staff can be infected, particularly, the medical staff can suffer from diseases with strong infectivity, and the consequences are more serious.
The existing breathing machine mainly comprises an inhalation aid and an exhaust pipe, and has no special measures for preventing virus infection or has poor self-carried sterilization and disinfection effects. In the process of rescuing patients with respiratory tract infectious diseases, a respirator is required to be used for emergency treatment and auxiliary respiration of the patients. However, some pathogens and bacteria exist in the respiratory tract of the patient, and are brought into the body of the respirator in the process of exhalation and inhalation of the patient, and the bacteria are continuously bred and multiplied inside the respirator, so that a large amount of bacteria and pathogens exist in the exhaust gas discharged by the respirator, and the treatment and disease control of the patient are greatly influenced. In addition, the gas exhausted from the respirator for surgical anesthesia also contains anesthetic, and the direct exhaust can endanger medical personnel and cause environmental pollution.
Therefore, the synchronous, safe, thorough and effective filtering and sterilizing device for the breathing machine/the anesthesia machine has very important clinical significance.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a pressure-adjustable exhaust gas filtering and disinfecting device to solve the problem of incomplete filtration and disinfection of the exhaust gas of the existing respirator/disinfecting machine.
In order to achieve the above purpose, the inventor provides a pressure-adjustable waste gas filtering and sterilizing device, which comprises a first-stage buffer tank, a second-stage sterilizing tank and a third-stage pressure adjusting tank, wherein the first-stage buffer tank, the second-stage sterilizing tank and the third-stage pressure adjusting tank are sequentially connected in a ventilating manner;
the first-stage buffer tank is filled with active carbon, the second-stage disinfection tank is filled with disinfectant, and the third-stage pressure regulation tank is filled with liquid;
a pressure regulating pipe is arranged on the third-stage pressure regulating tank, one end of the pressure regulating pipe extends out of the third-stage pressure regulating tank and is communicated with the atmosphere, and the other end of the pressure regulating pipe extends into the position below the liquid level of the liquid in the third-stage pressure regulating tank;
the third-stage pressure regulating tank is also communicated with a negative pressure device, and the negative pressure device is used for sucking the gas entering the third-stage pressure regulating tank by negative pressure.
The serial connection and matching of the first-stage buffer tank, the second-stage disinfection tank and the third-stage pressure regulation tank realize the stage-by-stage filtration and disinfection of waste gas discharged by the breathing machine/anesthetic; the activated carbon in the first-stage buffer tank can adsorb and filter the waste gas, and also can play a role of buffering gas, slow down the flow velocity of the waste gas in the tank body, and ensure that the retention time of the waste gas in the tank body can be prolonged when the waste gas enters the second-stage disinfection tank; the pressure inside and outside the tank body is balanced by a pressure adjusting pipe of the third-stage pressure adjusting tank; the negative pressure device sucks the gas entering the third-stage pressure regulating tank under negative pressure, so that the resistance inside the tank body can be offset, and the flow velocity of the waste gas in the tank body is further balanced. Through mutually supporting of first order buffer tank, second level disinfection jar, third level pressure regulating tank and vacuum device, can synthesize the internal and external pressure and the appeal of the adjustment jar body to carry out high-efficient and thorough filtration and disinfection to waste gas.
Preferably, the pressure-adjustable exhaust gas filtering and sterilizing device further comprises a first connecting pipe and a second connecting pipe;
the first-stage buffer tank is communicated with the second-stage disinfection tank through the first connecting pipe;
the second-stage disinfection tank is communicated with the third-stage pressure regulating tank through the second connecting pipe.
Preferably, the first-stage buffer tank is provided with a first air inlet pipe and a first air outlet pipe, the second-stage disinfection tank is provided with a second air inlet pipe and a second air outlet pipe, and the third-stage pressure regulating tank is provided with a third air inlet pipe and a third air outlet pipe;
the first air inlet pipe is communicated with the waste gas guide pipe;
the first air outlet pipe is communicated with the second air inlet pipe through the first connecting pipe;
the second air outlet pipe is communicated with the third air inlet pipe through the second connecting pipe;
and the third-stage pressure regulating tank is communicated with the negative pressure device through the third air outlet pipe.
Preferably, one end of the second air inlet pipe is communicated with the first air outlet pipe through the first connecting pipe, and the other end of the second air inlet pipe extends into the position below the liquid level of the disinfectant in the second-stage disinfection tank. The second air inlet pipe for leading in gas extends into the liquid level below the disinfectant in the second-stage disinfection tank, so that the gas is fully contacted with the disinfectant, and the second air outlet pipe for leading out the gas does not extend into the liquid level below, namely the air inlet and outlet pipe of the second-stage disinfection tank is set to accord with the principle of 'long inlet and short outlet'.
Preferably, the first-stage buffer tank comprises a first top cover and a first tank body;
the first top cover is detachably connected with the first tank body, and when the first top cover is arranged above the first tank body, the first top cover and the first tank body form airtight connection;
the first air inlet pipe and the first air outlet pipe are respectively inserted into the first top cover in a penetrating mode to form airtight connection.
Through set up first top cap on first order buffer tank for first top cap and the first jar of body can part, and then change the active carbon of the internal portion of first jar, and wash disinfection to the first jar of body.
Preferably, the second-stage sterilizing tank comprises a second top cover and a second tank body;
the second top cover is detachably connected with the second tank body, and when the second top cover is arranged above the second tank body, the second top cover and the second tank body form airtight connection;
the second air inlet pipe and the second air outlet pipe are respectively inserted into the second top cover in a penetrating mode to form airtight connection.
Through set up the second top cap on second level disinfection jar for the second top cap can be separated with the second jar of body, and then changes the antiseptic solution of the internal portion of second jar, and washs the disinfection to the second jar of body.
Preferably, the third stage pressure regulating tank comprises a third top cover and a third tank body;
the third top cover is detachably connected with the third tank body, and when the third top cover is arranged above the third tank body, the third top cover and the third tank body form airtight connection;
and the third air inlet pipe and the third air outlet pipe are respectively inserted into the third top cover in a penetrating way to form airtight connection.
Through set up the third top cap on third level buffer tank for the third top cap can be separated with the third jar of body, and then changes the liquid of the internal portion of third jar, and washs the disinfection to the third jar of body.
Preferably, a filter is arranged on the second air outlet pipe and used for separating gas from liquid.
Through set up the filter on the second outlet duct, with gas and antiseptic solution separation, can prevent that the antiseptic solution of attraction from flowing the outside of second grade disinfection jar to reduce the loss of antiseptic solution in the second grade disinfection jar, guarantee the effective disinfection of jar internal portion.
Preferably, the negative pressure device is a negative pressure machine or an aspirator.
Preferably, a liquid feeding channel is arranged on the second-stage disinfection tank and comprises a liquid feeding port, and a cover matched with the liquid feeding port in size is arranged on the liquid feeding port. By arranging the liquid adding channel on the second-stage disinfection tank, when the disinfectant in the second-stage disinfection tank is insufficient, fresh disinfectant can be added through the liquid adding channel; and a cover is arranged on a filling opening of the filling channel to ensure that the filtering and sterilizing device is in an airtight and closed state during normal use.
Be different from prior art, above-mentioned technical scheme has realized filtering and disinfecting step by step to waste gas through mutually supporting of first order buffer tank, second level disinfection jar, third level pressure regulating tank and negative pressure device, can adjust and balance the inside and outside atmospheric pressure of the jar body simultaneously, guarantees waste gas at the internal sufficient dwell time of jar, and then realizes high-efficient and thorough filtration and disinfection. Furthermore, the utility model discloses an adjustable pressure formula waste gas filtration degassing unit still has following advantage:
1. the adjustable pressure type waste gas filtering and sterilizing device has the advantages of simple structure, high sterilizing efficiency and safe operation, can reduce the infection probability of viruses to the maximum extent, and greatly reduces the cost for sterilizing the indoor environment;
2. the pressure-adjustable waste gas filtering and sterilizing device can be used together with equipment such as a breathing machine, an anesthesia machine and the like, and is used for sterilizing and disinfecting waste gas discharged by the equipment.
Drawings
Fig. 1 is a schematic structural view of an adjustable pressure type exhaust gas filtering and disinfecting device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an adjustable pressure type exhaust gas filtering and disinfecting device according to another embodiment of the present invention;
fig. 3 is a schematic structural view of a pressure-adjustable exhaust gas filtering and disinfecting device according to another embodiment of the present invention.
Description of reference numerals:
1. a first stage buffer tank; 11. activated carbon; 12. a first intake pipe; 13. a first air outlet pipe; 14. a first top cover; 15. a first tank;
2. a secondary sterilization tank; 21. a disinfectant; 22. a second intake pipe; 23. a second air outlet pipe; 24. a second top cover; 25. a second tank; 26. a filter; 27. a liquid feeding channel; 271. a liquid filling port; 272. a cover;
3. a third stage pressure regulating tank; 31. a liquid; 32. a pressure regulating tube; 33. a third intake pipe; a third outlet duct; 35. a third top cover; 36. a third tank body;
4. a first connecting pipe;
5. a second connecting pipe.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the embodiment provides a pressure-adjustable exhaust gas filtering and disinfecting device, which includes a first-stage buffer tank 1, a second-stage disinfection tank 2, and a third-stage pressure adjustment tank 3, wherein the first-stage buffer tank 1, the second-stage disinfection tank 2, and the third-stage pressure adjustment tank 3 are sequentially connected in a ventilating manner. Active carbon 11 is arranged in the first-stage buffer tank 1, disinfectant 21 is arranged in the second-stage disinfection tank, and liquid 31 is arranged in the third-stage pressure regulation tank 3.
In this embodiment, the disinfectant 21 may be 84 disinfectant, or a sodium hypochlorite solution, or lime water, or hydrogen peroxide, or a mixture of 1000mL of water and 2-5mL of 84 disinfectant. The third-stage pressure regulating tank 3 is provided with a pressure regulating pipe 32, one end of the pressure regulating pipe 32 extends out of the third-stage pressure regulating tank 3 and is communicated with the atmosphere, and the other end of the pressure regulating pipe 32 extends into the lower part of the liquid level of the liquid in the third-stage pressure regulating tank 3. The pressure regulating tube 32 in the third stage pressure regulating tank 3, just like the pressure limiting valve of the pressure cooker, prevents the pressure in the cooker from being too high, the pressure in the pressure cooker is positive, and the inside of the third stage pressure regulating tank is negative.
In this embodiment, when the pressure regulating pipe extends below the liquid level, a section of water column is formed in the pressure regulating pipe, and the pressure difference between the inside and the outside of the tank body is controlled by controlling the height of the water column within the range of 6-12cm, so as to ensure that the negative pressure in the third-stage pressure regulating tank is not too high. The third-stage pressure adjustment tank 3 is also communicated with a negative pressure device (not shown) for sucking the gas entering the third-stage pressure adjustment tank 3 at a negative pressure. The working power of the negative pressure device is too high, the air suction is too fast, the flow speed of the gas in the tank body/between the tank bodies is accelerated, and the gas cannot be filtered and sterilized fully; the working power of the negative pressure device is too low, the flow rate of the gas in the tank body/between the tank bodies is slow, the exhaust resistance which influences the normal work of the breathing machine/anesthesia machine can be generated, and the efficiency of filtering and sterilizing is not high.
Therefore, in this embodiment, the working power of the negative pressure device is maintained at 0.2-0.4MPa, and the negative pressure device can be used to adjust the internal and external pressures and the suction force while cooperating with the internal system of the adjustable pressure type exhaust gas filtering and sterilizing device (the height of the water column of the pressure adjusting pipe in the third stage pressure adjusting tank), control the flow rate of the exhaust gas in/between the tanks, and ensure the sterilizing time of the exhaust gas in the second stage sterilizing tank to be about 30 seconds, thereby efficiently and thoroughly filtering and sterilizing the exhaust gas.
The working principle of the pressure-adjustable waste gas filtering and disinfecting device of the embodiment is as follows: the negative pressure device continuously attracts the waste gas discharged by the anesthesia machine/breathing machine system through negative pressure, under the action of attraction force, the waste gas enters the first-stage buffer tank, firstly, an ash layer and particle impurities in the waste gas are removed under the action of activated carbon, and then, the sterilized clean air passing through the second-stage sterilization tank enters the third-stage pressure regulation tank and is discharged outdoors through the central attraction system under the attraction of the negative pressure device. In the filtering and disinfecting process, the serial connection and matching of the first-stage buffer tank, the second-stage disinfecting tank and the third-stage pressure regulating tank realize the stage-by-stage filtering and disinfecting of the waste gas discharged by the breathing machine/anesthetic; the activated carbon in the first-stage buffer tank can adsorb and filter the waste gas, and also can play a role of buffering gas, slow down the flow velocity of the waste gas in the tank body, so that the waste gas can be sufficiently sterilized when entering the second-stage sterilization tank; the balance of the air pressure inside and outside the tank body can be ensured through the pressure regulating pipe of the third-stage pressure regulating tank; the negative pressure device sucks gas entering the third-stage pressure regulating tank through negative pressure, so that the resistance inside the tank body can be offset while waste gas is removed, the pressure inside the tank body cannot be influenced, and the flow rate of the waste gas in the tank body is further balanced. Through mutually supporting of first order buffer tank, second level disinfection jar, third level pressure regulating tank and vacuum device, can synthesize the internal and external pressure and the appeal of the adjustment jar body to carry out high-efficient and thorough filtration and disinfection to waste gas.
Referring to fig. 2, in another embodiment, the pressure-adjustable exhaust gas filtering and sterilizing apparatus further includes a first connecting pipe 4 and a second connecting pipe 5. The first-stage buffer tank 1 is communicated with the second-stage sterilizing tank 2 through a first connecting pipe 4. The second-stage disinfection tank 2 is communicated with the third-stage pressure regulating tank 3 through a second connecting pipe 5. In this embodiment, the first connecting pipe 4 and the second connecting pipe 5 are made of one of soft plastic materials or plastic materials.
Referring to fig. 2, in another embodiment, a first air inlet pipe 12 and a first air outlet pipe 13 are provided on the first-stage buffer tank 1, a second air inlet pipe 22 and a second air outlet pipe 23 are provided on the second-stage sterilization tank 2, and a third air inlet pipe 33 and a third air outlet pipe 34 are provided on the third-stage pressure adjustment tank 3. The first inlet pipe 12 is in communication with a waste gas guide pipe (not shown) for passing waste gas into the first-stage buffer tank. The first air outlet pipe 13 is communicated with the second air inlet pipe 22 through the first connecting pipe 4; the second outlet pipe 23 is communicated with the third inlet pipe 33 through the second connecting pipe 5. The third-stage pressure regulating tank 3 is communicated with a negative pressure device through a third air outlet pipe 34. In this embodiment, the first air inlet pipe 12, the first air outlet pipe 13, the second air inlet pipe 22, the second air outlet pipe 23, the third air inlet pipe 33 and the third air outlet pipe 34 are made of plastic materials. In this embodiment, when the pressure-adjustable waste gas filtering and disinfecting device is used in connection with a respirator/anesthesia machine, the waste gas guide pipe is an exhaust pipe of the respirator/anesthesia machine.
Referring to fig. 2, in another embodiment, one end of the second air inlet pipe 22 is connected to the first air outlet pipe 13 through the first connecting pipe 4, and the other end of the second air inlet pipe 22 extends below the liquid level of the disinfectant in the second stage disinfection tank. To ensure that disinfection is complete, the gas must be in sufficient contact with the disinfecting liquid, and the gas conduit is typically extended into the liquid or solution. In this embodiment, the second air inlet pipe for leading in gas stretches into the liquid level below of disinfectant in the second stage disinfection jar for gas and disinfectant fully contact, and the second outlet duct for leading out gas then does not stretch into the liquid level below, sets up the business turn over trachea of the second stage disinfection jar as the principle that accords with "long-time entering is short-time goes out".
Referring to fig. 2, in another embodiment, the first-stage buffer tank 1 includes a first top cover 14 and a first tank body 15. The first top cover 14 is detachably connected with the first tank 15, and when the first top cover 14 is placed above the first tank 15, the first top cover 14 and the first tank 15 form an airtight connection, that is, an enclosed cavity is formed in an area enclosed by the first top cover 14 and the first tank 15. The first air inlet pipe 12 and the first air outlet pipe 13 are respectively inserted into the first top cover 14 in a penetrating way to form airtight connection.
In this embodiment, through set up first top cap 14 on first-stage buffer tank 1, first top cap 14 and the mutual joint of the first jar of body 15 or threaded connection for first top cap 14 and the first jar of body 15 can part, and then change the inside active carbon of the first jar of body, and wash the disinfection to the first jar of body.
Referring to FIG. 2, in another embodiment, the secondary sterilization tank 2 includes a second header 24 and a second tank 25. The second top cover 24 is detachably connected with the second tank 25, and when the second top cover 24 is placed above the second tank 25, the second top cover 24 and the second tank 25 form an airtight connection, that is, an enclosed cavity is formed in the area enclosed by the second top cover 24 and the second tank 25. The second air inlet pipe 22 and the second air outlet pipe 23 are respectively inserted into the second top cover 24 in a penetrating way to form airtight connection.
In this embodiment, the second top cap 24 is disposed on the second-stage disinfection tank 2, and the second top cap 24 and the second tank 25 are connected by clamping or screwing, so that the second top cap 24 and the second tank 25 can be separated, the disinfection solution 21 inside the second tank 25 can be replaced, and the second tank 25 can be cleaned and disinfected.
Referring to fig. 2, in another embodiment, the third stage pressure regulating tank 3 includes a third head 35 and a third tank 36. The third top cover 35 is detachably connected to the third can 36, and when the third top cover 35 is placed over the third can 36, the third top cover 35 and the third can 36 form an airtight connection, that is, an enclosed cavity is formed in an area surrounded by the third top cover 35 and the third can 36. The third air inlet pipe 33 and the third air outlet pipe 34 are respectively inserted into the third top cover 35 to form an airtight connection.
In this embodiment, the third top cover 35 is disposed on the third-stage buffer tank 3, and the third top cover 35 and the third tank 36 are connected by clamping or screwing, so that the third top cover 35 and the third tank 36 can be separated, the liquid 31 inside the third tank 36 can be replaced, and the third tank 36 can be cleaned and sterilized.
Referring to fig. 3, in another embodiment, a filter 26 is disposed on the second outlet pipe 23, and the filter 26 is used for separating gas and liquid. Through set up filter 26 on the second outlet duct, with gas and antiseptic solution separation, can prevent that the antiseptic solution 21 of attraction from flowing out the outside of second grade disinfection jar 2 to reduce the loss of antiseptic solution 21 in second grade disinfection jar 2, guarantee the effective disinfection of jar internal portion. In this embodiment, the filter 26 is a gas-liquid separation filter, and because the filter 26 only permeates gas, when the disinfectant is attracted to the filter 26, the disinfectant can be blocked in the tank body of the second-stage disinfection tank, so that the gas after gas-liquid separation can be timely discharged, and meanwhile, the discharged gas can be dried, so that the liquid can not be mixed into the gas.
In another embodiment, the negative pressure device is a negative pressure machine or an aspirator. The negative pressure machine or the suction apparatus is a vacuum pump unit of the central suction station, the suction of the vacuum pump unit enables the suction system pipeline to reach the required negative pressure value, and suction is generated at the terminal of an operating room, a rescue room, a room and each ward, so that medical use is provided.
Referring to fig. 3, in another embodiment, a filling channel 27 is provided on the second-stage sterilization tank 2, the filling channel 27 includes a filling opening 271, and a cover 272 adapted to the filling opening 271 is provided on the filling opening 271. By arranging the liquid adding channel 27 on the second-stage disinfection tank 2, when the disinfection liquid 21 in the second-stage disinfection tank 2 is insufficient, fresh disinfection liquid can be added through the liquid adding channel 27; and, a cap 272 is provided on the filling port 271 of the filling channel 27 to ensure that the filter sterilizing apparatus is in an airtight closed state in normal use. In this embodiment, the filling channel 27 is not limited in its specific form, and may be a filling hole or a filling pipe provided at the top of the second-stage sterilizing tank 2.
Be different from prior art, above-mentioned technical scheme has realized filtering and disinfecting step by step to breathing machine anesthetic exhaust gas through mutually supporting of first order buffer tank, second level disinfection jar, third level pressure regulating tank and vacuum device, can adjust and balance the inside and outside atmospheric pressure of the jar body simultaneously, guarantees waste gas at the internal sufficient dwell time of jar, and then realizes high-efficient and thorough filtration and disinfection. Furthermore, the utility model discloses an adjustable pressure formula waste gas filtration degassing unit simple structure, disinfection are efficient, the operation is safe, can furthest reduce the infectious probability of virus, greatly reduced indoor environment disinfection's expense. The pressure-adjustable waste gas filtering and sterilizing device can be used together with equipment such as a breathing machine, an anesthesia machine and the like, is used for sterilizing waste gas discharged by the equipment, and can also be used as a sterilizing unit to be arranged in other sterilizing equipment.
In the description herein, the appearances of the phrases "embodiment one," "this embodiment," "specific implementation," and the like in this specification are not necessarily all referring to the same embodiment or example, but rather to the same embodiment or example. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example; furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present specification, the terms "connect", "mount", "fix", "set", "have", and the like are used in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically connected, electrically connected or communicated; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. As in this example, the specific meanings of the above terms in the present invention can be understood by those skilled in the art according to the specific situation.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (10)
1. The pressure-adjustable waste gas filtering and sterilizing device is characterized by comprising a first-stage buffer tank, a second-stage sterilizing tank and a third-stage pressure adjusting tank, wherein the first-stage buffer tank, the second-stage sterilizing tank and the third-stage pressure adjusting tank are sequentially connected in a ventilating manner;
the first-stage buffer tank is filled with active carbon, the second-stage disinfection tank is filled with disinfectant, and the third-stage pressure regulation tank is filled with liquid;
a pressure regulating pipe is arranged on the third-stage pressure regulating tank, one end of the pressure regulating pipe extends out of the third-stage pressure regulating tank and is communicated with the atmosphere, and the other end of the pressure regulating pipe extends into the position below the liquid level of the liquid in the third-stage pressure regulating tank;
the third-stage pressure regulating tank is also communicated with a negative pressure device, and the negative pressure device is used for sucking the gas entering the third-stage pressure regulating tank by negative pressure.
2. The adjustable pressure exhaust gas filtering and disinfecting device of claim 1 further comprising a first connecting tube and a second connecting tube;
the first-stage buffer tank is communicated with the second-stage disinfection tank through the first connecting pipe;
the second-stage disinfection tank is communicated with the third-stage pressure regulating tank through the second connecting pipe.
3. The adjustable pressure type waste gas filtering and sterilizing device as claimed in claim 2, wherein a first gas inlet pipe and a first gas outlet pipe are arranged on the first-stage buffer tank, a second gas inlet pipe and a second gas outlet pipe are arranged on the second-stage sterilizing tank, and a third gas inlet pipe and a third gas outlet pipe are arranged on the third-stage pressure adjusting tank;
the first air inlet pipe is communicated with the waste gas guide pipe;
the first air outlet pipe is communicated with the second air inlet pipe through the first connecting pipe;
the second air outlet pipe is communicated with the third air inlet pipe through the second connecting pipe;
and the third-stage pressure regulating tank is communicated with the negative pressure device through the third air outlet pipe.
4. The adjustable pressure type exhaust gas filtering and sterilizing apparatus as claimed in claim 3, wherein one end of said second inlet pipe is connected to said first outlet pipe through said first connecting pipe, and the other end of said second inlet pipe extends below the level of the sterilizing liquid in said second stage sterilizing tank.
5. The adjustable pressure exhaust gas filtering and sterilizing apparatus of claim 3 wherein the first stage buffer tank comprises a first top cover and a first tank body;
the first top cover is detachably connected with the first tank body, and when the first top cover is arranged above the first tank body, the first top cover and the first tank body form airtight connection;
the first air inlet pipe and the first air outlet pipe are respectively inserted into the first top cover in a penetrating mode to form airtight connection.
6. The adjustable pressure exhaust gas filtering and disinfecting device of claim 3 wherein the second stage disinfecting tank comprises a second top cover and a second tank body;
the second top cover is detachably connected with the second tank body, and when the second top cover is arranged above the second tank body, the second top cover and the second tank body form airtight connection;
the second air inlet pipe and the second air outlet pipe are respectively inserted into the second top cover in a penetrating mode to form airtight connection.
7. The adjustable pressure exhaust gas filtering and sterilizing apparatus as claimed in claim 3, wherein said third stage pressure regulating tank comprises a third top cover and a third tank body;
the third top cover is detachably connected with the third tank body, and when the third top cover is arranged above the third tank body, the third top cover and the third tank body form airtight connection;
and the third air inlet pipe and the third air outlet pipe are respectively inserted into the third top cover in a penetrating way to form airtight connection.
8. The adjustable pressure type exhaust gas filtering and sterilizing apparatus according to claim 3, wherein a filter is provided on the second outlet pipe, the filter being for separating gas and liquid.
9. The adjustable pressure exhaust filtration disinfection apparatus of claim 1, wherein said negative pressure device is a negative pressure machine or an aspirator.
10. The adjustable pressure type waste gas filtering and sterilizing device as claimed in claim 1, wherein a liquid filling channel is provided on the second stage sterilizing tank, the liquid filling channel comprises a liquid filling opening, and a cover with a size matched with the liquid filling opening is provided on the liquid filling opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020418942.2U CN212261977U (en) | 2020-03-27 | 2020-03-27 | Pressure-adjustable waste gas filtering and sterilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020418942.2U CN212261977U (en) | 2020-03-27 | 2020-03-27 | Pressure-adjustable waste gas filtering and sterilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212261977U true CN212261977U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020418942.2U Expired - Fee Related CN212261977U (en) | 2020-03-27 | 2020-03-27 | Pressure-adjustable waste gas filtering and sterilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212261977U (en) |
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2020
- 2020-03-27 CN CN202020418942.2U patent/CN212261977U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210101 |