Disinfection and purification device for waste gas emission of medical vacuum unit

Abstract

The utility model relates to the technical field of waste gas disinfection and purification, in particular to a waste gas discharge disinfection and purification device of a medical vacuum unit, which comprises a discharge pipeline, a first clamp in contact with the rear of the discharge pipeline, internal threads arranged on the inner side of the rear of the first clamp, and an air inlet filter group spirally connected with the inner side of the rear of the first clamp. The air inlet filter group comprises a first extension pipe, a second extension pipe, external threads and filter cotton, the outer side of the second extension pipe is in contact with a second hoop, and the rear of the inner side of the second hoop is in contact with an epoxy resin shell; through design cooperation, the device can purify toxic waste gas entering a discharge pipeline, filter cotton of an air inlet filter set blocks dust with large particles in the waste gas, and then the dust is discharged through plasma ozone generated by a plasma ozone generator and positive and negative currents generated by a discharge negative electrode and a high-voltage discharge tungsten needle. And waste gas entering the epoxy resin shell can be purified.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas disinfection and purification, in particular to a waste gas discharge disinfection and purification device for a medical vacuum unit. Background Art

[0002] The medical vacuum unit is an indispensable supporting facility for modern hospital gases. A common example is the negative pressure suction system at the head of the hospital bed, where the suction source is the negative pressure air generated by the medical vacuum unit. At the same time, the waste gas generated by the hospital will also be filtered through a series of processes and discharged outdoors.

[0003] The patent specification with the publication number CN214307490U discloses a waste gas discharge disinfection and purification device for a hospital suction system, including a mounting and fixing frame, which is suspended on the top of the interior wall of the hospital through fastening bolts. On the top of the mounting and fixing frame, a dust filter box, a purification box, and a drying box are respectively installed from left to right. An intake duct is inserted and connected to the left intake port of the dust filter box. The bottom of the intake duct penetrates through the bottom of the mounting and fixing frame and is sleeved with an air extraction guide head. An air extraction pump is installed on the intake duct. The top plate of the dust filter box is vertically inserted with a first dust filter mesh plate and a second dust filter mesh plate from left to right in sequence. A fastening cavity is opened at the bottom of the inner cavity of the dust filter box. At the left and right end side walls of the inner cavity of the two fastening cavities, fastening slots are fixed. At the side walls of the mutually separated ends of the two fastening slots, fastening springs are fixed. The heating wire inside the drying box of the utility model device dries it, and finally the gas that has been filtered, disinfected, and dried is discharged back to the outside of the hospital through an exhaust pipe.

[0004] However, in the implementation of the related technology, it is found that the above-mentioned waste gas discharge disinfection and purification device for the hospital suction system has the following problems: the overall floor area of the above structure is relatively large, and the installation cost and operation cost are relatively high. At the same time, the treatment structure for disinfecting and purifying the waste gas inside it performs high-temperature disinfection through disinfectant and heating wires, but it only disinfects the waste gas and it is difficult to purify the sulfur in the waste gas. Discharging it outdoors will pollute the surrounding air. At the same time, there are many relatively large dust particles in the waste gas. The above device is provided with an activated carbon adsorption layer with a filtering effect, but the activated carbon adsorption layer is arranged inside the dust filter box. It requires manual replacement after adsorbing dust for a long time, but there may be gaps after replacement, resulting in the waste gas being easily discharged from the gaps. In view of this, a waste gas discharge disinfection and purification device for a medical vacuum unit is provided to overcome the above defects. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and propose a waste gas discharge disinfection and purification device for a medical vacuum unit.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a medical vacuum unit waste gas emission disinfection and purification device, including an exhaust pipe. A first clamp is in contact with the rear of the exhaust pipe. An internal thread is provided on the inner side of the rear of the first clamp. An intake filtration group is spirally connected to the inner side of the rear of the first clamp. The intake filtration group includes a first extension pipe, a second extension pipe, an external thread, and filter cotton. A second clamp is in contact with the outside of the second extension pipe. The inner rear of the second clamp is in contact with an epoxy resin housing. A front side inside the epoxy resin housing is fixedly connected to an epoxy resin bracket. An annular sleeve is fixedly connected to the inside of the epoxy resin bracket. A connecting plate is fixedly connected to the inside of the annular sleeve. An insulating rod is fixedly connected to the top end inside the connecting plate. A high-voltage discharge tungsten needle is fixedly connected to the top end inside the rear of the insulating rod. A discharge negative electrode is fixedly connected to the rear inside of the epoxy resin housing. A plasma ozone generator is fixedly connected to the lower end surface of the epoxy resin housing. A third clamp is in contact with the outside of the top end of the rear of the epoxy resin housing. The inner rear of the third clamp is in contact with an outdoor exhaust pipe.

[0007] As a further description of the above technical solution: Extension plates are fixedly connected to the lower end surfaces of the first clamp, the second clamp, and the third clamp. Bolts are spirally connected inside the extension plates. The front end surface of the intake filtration group is fixedly connected to the first extension pipe. The rear end surface of the intake filtration group is fixedly connected to the second extension pipe. An external thread is provided on the outside of the first extension pipe. The middle inside the intake filtration group is fixedly connected to the filter cotton.

[0008] As a further description of the above technical solution: The cross-sectional diameter of the filter cotton is the same as the cross-sectional diameter of the exhaust pipe, and the thickness of the filter cotton is three centimeters. The overall outer cross-sectional diameter of the intake filtration group is the same as the outer cross-sectional diameter of the exhaust pipe.

[0009] As a further description of the above technical solution: The number of the connecting plates is two, and the connecting plates are distributed on the upper and lower sides of the insulating rod. The front and rear length of the connecting plate is the same as the inner width of the annular sleeve.

[0010] As a further description of the above technical solution: Air outlet holes are provided in the lower part inside the epoxy resin housing, and the air outlet holes in the lower part inside the epoxy resin housing are directly above the output end of the plasma ozone generator.

[0011] As a further description of the above technical solution: Wires directly connecting the discharge negative electrode and the high-voltage discharge tungsten needle are provided inside the plasma ozone generator, and the discharge negative electrode is arranged in a ring shape inside the epoxy resin housing and is located at the middle position outside the high-voltage discharge tungsten needle.

[0012] As a further description of the above technical solution: the thread pitch of the internal thread at the rear inside of the first clamp is the same as the thread pitch of the external thread on the outside of the first extension pipe, and the width of the internal thread at the rear inside of the first clamp is the same as the width of the external thread on the outside of the first extension pipe.

[0013] The utility model has the following beneficial effects:

[0014] The medical vacuum unit waste gas emission disinfection and purification device designed by the utility model can purify the toxic waste gas entering the discharge pipe through design cooperation. The filter cotton of the intake air filtration group blocks the dust with larger particles in the waste gas, and then the plasma ozone generated by the plasma ozone generator, as well as the positive and negative currents generated by the discharge negative electrode and the high-voltage discharge tungsten needle, can not only purify the waste gas entering the epoxy resin housing, and the purified waste gas is discharged into the air through the outdoor exhaust pipe. It has a simple structure, small floor area, low manufacturing cost, and the first extension pipe and the second extension pipe are arranged on the front and rear sides of the intake air filtration group. The outside of the first extension pipe is provided with external threads, which are spirally connected with the internal threads at the rear inside of the first clamp, facilitating the replacement of the intake air filtration group and pre-fixing the intake air filtration group at the same time, preventing the waste gas from flowing out through the gap due to the gap between the discharge pipe and the intake air filtration group. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the utility model;

[0016] Figure 2 is the sectional three-dimensional structural schematic diagram of the epoxy resin housing of the utility model;

[0017] Figure 3 is the three-dimensional structural schematic diagram of the intake air filtration group of the utility model;

[0018] Figure 4 is the three-dimensional structural schematic diagram of the first clamp of the utility model.

[0019] Legend Explanation:

[0020] 1. Discharge pipe; 2. First clamp; 3. Intake air filtration group; 4. Second clamp; 5. Epoxy resin housing; 6. Plasma ozone generator; 7. Third clamp; 8. Outdoor exhaust pipe; 9. Filter cotton; 10. Epoxy resin bracket; 11. Annular sleeve; 12. Connecting plate; 13. Insulating rod; 14. High-voltage discharge tungsten needle; 15. Discharge negative electrode; 16. First extension pipe; 17. External thread; 18. Second extension pipe; 19. Internal thread; 20. Extension plate; 21. Bolt. Detailed Implementation Modes

[0021] Refer to Figures 1-4, the waste gas emission disinfection and purification device for the medical vacuum unit provided by the utility model includes an exhaust pipe 1. A first clamp 2 is in contact with the rear of the exhaust pipe 1. An internal thread 19 is provided on the inner side of the rear of the first clamp 2. An intake filtration group 3 is spirally connected to the inner side of the rear of the first clamp 2. The intake filtration group 3 includes a first extension pipe 16, a second extension pipe 18, an external thread 17, and a filter cotton 9. A second clamp 4 is in contact with the outside of the second extension pipe 18. An epoxy resin housing 5 is in contact with the rear inner side of the second clamp 4. An epoxy resin bracket 10 is fixedly connected to the front side inside the epoxy resin housing 5. An annular sleeve 11 is fixedly connected to the inner side of the epoxy resin bracket 10. A connecting plate 12 is fixedly connected to the inner side of the annular sleeve 11. An insulating rod 13 is fixedly connected to the top end inside the inner side of the connecting plate 12. A high-voltage discharge tungsten needle 14 is fixedly connected to the top end inside the rear of the insulating rod 13. A discharge negative electrode 15 is fixedly connected to the rear inside the epoxy resin housing 5. A plasma ozone generator 6 is fixedly connected to the lower end surface of the epoxy resin housing 5. A third clamp 7 is in contact with the outside of the top end of the rear of the epoxy resin housing 5. An outdoor exhaust pipe 8 is in contact with the rear inner side of the third clamp 7. Extension plates 20 are fixedly connected to the lower end surfaces of the first clamp 2, the second clamp 4, and the third clamp 7. Bolts 21 are spirally connected inside the extension plates 20. The front end surface of the intake filtration group 3 is fixedly connected to the first extension pipe 16. The rear end surface of the intake filtration group 3 is fixedly connected to the second extension pipe 18. An external thread 17 is provided on the outside of the first extension pipe 16. The filter cotton 9 is fixedly connected to the middle inside the intake filtration group 3. It can not only filter the waste gas entering the exhaust pipe 1, but also convert the sulfur and other toxic gases in the waste gas into ozone through the positive and negative currents generated between the plasma ozone generator 6 and the discharge negative electrode 15 and the high-voltage discharge tungsten needle 14, and discharge it to the outside through the outdoor exhaust pipe 8.

[0022] As a further implementation of the above technical solution: The cross-sectional diameter of the filter cotton 9 is the same as the cross-sectional diameter of the exhaust pipe 1, and the thickness of the filter cotton 9 is three centimeters. The overall outer cross-sectional diameter of the intake filtration group 3 is the same as the outer cross-sectional diameter of the exhaust pipe 1. After the waste gas passes through the filter cotton 9 horizontally, the larger dust particles stay on the outside of the filter cotton 9, reducing the dust discharged to the outside through the outdoor exhaust pipe 8 and thus affecting the surrounding environment.

[0023] As a further implementation of the above technical solution: The number of the connecting plates 12 is two, and the connecting plates 12 are distributed on the upper and lower sides of the insulating rod 13. The front and rear lengths of the connecting plates 12 are the same as the inner width of the annular sleeve 11, which is convenient for fixing the insulating rod 13 to prevent the insulating rod 13 from detaching from the inner side of the annular sleeve 11 due to the possible vibration when the high-voltage discharge tungsten needle 14 releases voltage, resulting in damage to the high-voltage discharge tungsten needle 14.

[0024] As a further implementation of the above technical solution: an air outlet is provided below the interior of the epoxy resin housing 5, and the air outlets below the interior of the epoxy resin housing 5 are directly above the output end of the plasma ozone generator 6. A wire directly connecting the discharge negative electrode 15 and the high-voltage discharge tungsten needle 14 is provided inside the plasma ozone generator 6. The discharge negative electrode 15 is arranged in a ring shape inside the epoxy resin housing 5 and is located at the middle position outside the high-voltage discharge tungsten needle 14. The plasma ozone generated by the plasma ozone generator 6 and the positive and negative currents generated by the discharge negative electrode 15 and the high-voltage discharge tungsten needle 14 can not only purify the waste gas entering the epoxy resin housing 5, but the purified waste gas is discharged into the air through the outdoor exhaust pipe 8.

[0025] As a further implementation of the above technical solution: the thread pitch of the internal thread 19 at the rear of the inner side of the first clamp 2 is the same as the thread pitch of the external thread 17 on the outer side of the first extension pipe 16, and the width of the internal thread 19 at the rear of the inner side of the first clamp 2 is the same as the width of the external thread 17 on the outer side of the first extension pipe 16, which facilitates the replacement of the intake air filter group 3 and pre-fixes the intake air filter group 3 to prevent waste gas from flowing out through the gap between the discharge pipe 1 and the intake air filter group 3.

[0026] Working principle:

[0027] Before using the present utility model, install the intake air filter group 3 and the epoxy resin housing 5. Take out the first clamp 2, and make the end with the internal thread 19 of the first clamp 2 contact the external thread 17 on the outer side of the first extension pipe 16 of the intake air filter group 3. Then rotate the first clamp 2. When the internal thread 19 and the external thread 17 are spirally connected to each other, after the connection is completed, put the front inner side of the first clamp 2 on the rear top end of the discharge pipe 1. Then insert the bolt 21 into the extension plate 20 on the lower end surface of the first clamp 2, and the first clamp 2 is fixed. Then take out the second clamp 4, put the front side of the second clamp 4 on the outer side of the second extension pipe 18, and then insert the front top end of the epoxy resin housing 5 into the rear inner side of the second clamp 4. At this time, the plasma ozone generator 6 below the epoxy resin housing 5 contacts the ground. After fixing the second clamp 4 with the bolt 21, take out the third clamp 7, put the front side of the third clamp 7 on the rear top end of the epoxy resin housing 5, and then put the rear inner side of the third clamp 7 on the front top end of the outdoor exhaust pipe 8. After tightening with the bolt 21, the installation is completed. Input waste gas into the discharge pipe 1. At this time, the larger dust particles in the waste gas are combined by the filter cotton 9 of the intake air filter group 3. Then the waste gas containing more sulfur enters the interior of the epoxy resin housing 5. Turn on the plasma ozone generator 6, the high-voltage discharge tungsten needle 14 and the discharge negative electrode 15. The plasma ozone generator 6 reacts with the sulfur in the waste gas, and with the positive and negative currents generated by the high-voltage discharge tungsten needle 14 and the discharge negative electrode 15, the waste gas is converted into ozone and is exhausted outdoors through the outdoor exhaust pipe 8.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A medical vacuum unit waste gas exhaust disinfection and purification device, comprising a discharge pipeline (1), characterized in that: The exhaust pipe (1) is in contact with a first clamp (2) at the rear, and an internal thread (19) is provided on the inner side of the rear of the first clamp (2). An air intake filter group (3) is spirally connected to the inner side of the rear of the first clamp (2). The air intake filter group (3) comprises a first extension tube (16), a second extension tube (18), an external thread (17) and filter cotton (9). The outer side of the second extension tube (18) is in contact with a second clamp (4). The inner side and rear side of the second clamp (4) are in contact with an epoxy resin shell (5). The front side of the epoxy resin shell (5) is fixedly connected to an epoxy resin bracket (10). The epoxy resin bracket (10) is 0) is fixedly connected to an annular sleeve (11) on the inside, a connecting plate (12) is fixedly connected to the inside of the annular sleeve (11), an insulating rod (13) is fixedly connected to the top of the inside of the connecting plate (12), a high-voltage discharge tungsten needle (14) is fixedly connected to the inside of the top of the rear of the insulating rod (13), a discharge cathode (15) is fixedly connected to the inside of the epoxy resin shell (5) on the rear, a plasma ozone generator (6) is fixedly connected to the lower end surface of the epoxy resin shell (5), a third clamp (7) is in contact with the outside of the top of the rear of the epoxy resin shell (5), and an outdoor exhaust pipe (8) is in contact with the inside rear of the third clamp (7).

2. The medical vacuum unit waste gas emission disinfection and purification device according to claim 1, characterized in that: The lower end surfaces of the first clamp (2), the second clamp (4) and the third clamp (7) are all fixedly connected to an extension plate (20), and a bolt (21) is spirally connected inside the extension plate (20). The front end surface of the air intake filter group (3) is fixedly connected to the first extension tube (16), and the rear end surface of the air intake filter group (3) is fixedly connected to the second extension tube (18). The outer side of the first extension tube (16) is provided with an external thread (17), and the middle of the interior of the air intake filter group (3) is fixedly connected to the filter cotton (9).

3. The medical vacuum unit waste gas emission disinfection and purification device according to claim 1, characterized in that: The cross-sectional diameter of the filter cotton (9) is the same as the cross-sectional diameter of the discharge pipe (1), and the thickness of the filter cotton (9) is three centimeters. The overall cross-sectional outer diameter of the air intake filter group (3) is the same as the cross-sectional outer diameter of the discharge pipe (1).

4. The medical vacuum unit waste gas emission disinfection and purification device according to claim 1, characterized in that: The number of the connecting plates (12) is two, and the connecting plates (12) are distributed on the upper and lower sides of the insulating rod (13), and the front-to-back length of the connecting plates (12) is the same as the inner width of the annular sleeve (11).

5. The medical vacuum unit waste gas emission disinfection and purification device according to claim 1, characterized in that: The epoxy resin shell (5) is provided with air outlet holes at the lower part inside, and the air outlet holes at the lower part inside the epoxy resin shell (5) are distributed just above the output end above the plasma ozone generator (6).

6. The medical vacuum unit waste gas emission disinfection and purification device according to claim 1, characterized in that: The plasma ozone generator (6) is provided with an electric wire directly connecting the discharge cathode (15) and the high-voltage discharge tungsten needle (14), and the discharge cathode (15) is arranged in a ring shape inside the epoxy resin housing (5) and at the middle position outside the high-voltage discharge tungsten needle (14).

7. The medical vacuum unit waste gas emission disinfection and purification device according to claim 1, characterized in that: The pitch of the internal thread (19) at the rear inner side of the first clamp (2) is the same as the pitch of the external thread (17) at the outer side of the first extension tube (16), and the width of the internal thread (19) at the rear inner side of the first clamp (2) is the same as the width of the external thread (17) at the outer side of the first extension tube (16).

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