Anesthesia department exhaust treatment device

Abstract

The application discloses an anesthesia department waste gas treatment device, including cabinet, the cabinet is fixedly installed with first gas separation mechanism, second gas separation mechanism and adsorption tower, the first gas separation mechanism includes a pair of first separation tank, the first separation tank is filled with activated carbon particles, a pair of first separation tank is fixedly connected with first three-way pipe, the first three-way pipe is connected with the waste gas pipeline in the operating room, a pair of first solenoid valve is fixedly installed on the first three-way pipe. Compared with the prior art, the anesthesia department waste gas treatment device can not only separate sevoflurane and isoflurane from waste gas, but also catalytically decomposes nitrous oxide, avoids the potential threat of nitrous oxide to the environment and human health from the source, realizes in-situ regeneration of activated carbon particles, greatly reduces hospital consumable replacement and operation cost, and has environmental protection benefit and energy saving advantage.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment equipment technology, specifically a waste gas treatment device for anesthesiology departments. Background Technology

[0002] The mainstream anesthesia protocols during surgery employ a compound gas formulation, with sevoflurane and nitrous oxide as the core, or isoflurane and nitrous oxide combined. This type of gas mixture can rapidly induce unconsciousness in the patient, blocking pain sensation during surgery while maintaining stable vital signs such as heart rate and blood pressure throughout the procedure. This creates a safe and controllable medical environment for various surgeries and is a core support for the successful execution of these procedures.

[0003] Because patients need mechanical ventilation or spontaneous breathing to maintain their lives during surgery, their exhaled waste gas contains incompletely metabolized anesthetic gases. Directly releasing these waste gases would threaten the health of medical staff who are in the closed environment of the operating room for extended periods, and would also have a negative impact on the ecological environment. Therefore, they must be treated specifically using specialized equipment.

[0004] Currently, the mainstream clinical waste gas treatment equipment uses activated carbon adsorption technology, which has the advantage of efficiently adsorbing halogenated anesthetic gases such as sevoflurane and isoflurane, preventing their diffusion. However, this technology has significant limitations: First, it has no adsorption effect on nitrous oxide, and its direct emission will damage the ozone layer, threaten the ecology and human health. Indoor accumulation can also irritate the respiratory tract of medical staff, increasing the risk of discomfort such as dizziness and fatigue. Second, activated carbon has a limited adsorption capacity and needs to be replaced frequently, which not only wastes resources but also significantly increases hospital operating costs due to replacement operations and waste material disposal, and may also cause secondary environmental problems.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a waste gas treatment device for anesthesiology departments. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide an exhaust gas treatment device for anesthesiology departments to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a waste gas treatment device for anesthesiology departments, including a cabinet. A first gas separation mechanism, a second gas separation mechanism, and an adsorption tower are fixedly installed inside the cabinet. The first gas separation mechanism includes a pair of first separation tanks filled with activated carbon granules. A first tee pipe is fixedly connected to the pair of first separation tanks, with the end of the first tee pipe furthest from the first separation tank connected to a waste gas pipeline in the operating room. A pair of first solenoid valves are fixedly installed on the first tee pipe. The second gas separation mechanism includes a second separation tank, and a catalytic converter is installed inside the second separation tank. A honeycomb plate is installed inside the catalytic converter, and the honeycomb plate is filled with catalyst. A second three-way pipe is fixedly connected between the second separation tank and a pair of first separation tanks, and a pair of second solenoid valves are installed on the second three-way pipe. The adsorption tower is filled with adsorbent. A second gas pipe is fixedly connected between the second separation tank and the adsorption tower, and a second gas pump is installed on the second gas pipe. A third three-way pipe is fixedly connected between the adsorption tower and the pair of first separation tanks, and a third gas pump and a pair of third solenoid valves are fixedly installed on the third three-way pipe. A fourth three-way pipe is fixedly connected to the pair of first separation tanks, and a pair of fourth solenoid valves are fixedly installed on the fourth three-way pipe.

[0008] In one or more embodiments of the present invention, a first partition is fixedly connected inside the first separation tank, the first partition dividing the space inside the first separation tank into a first chamber and a second chamber that are independent of each other. The first three-way pipe is connected to the first chamber. A filter cartridge is fixedly connected to the first partition. The filter cartridge has an air inlet, a third chamber and a plurality of second through holes. The first partition has a first through hole that matches the air inlet. The activated carbon particles are filled in the third chamber. The second three-way pipe is connected to the second chamber and the second through holes penetrate the filter cartridge.

[0009] In one or more embodiments of the present invention, a second partition and a third partition are fixedly connected inside the second separation tank, a fourth chamber is formed between the third partition and the upper cover plate of the second separation tank, and the end of the second three-way pipe away from the pair of first separation tanks is connected to the fourth chamber; a fifth chamber is formed between the second partition and the third partition, the catalyst cylinder is located in the fifth chamber, a fourth through hole is opened on the third partition, a cylinder cover is sealed and connected to the catalyst cylinder, and a sixth through hole matching the fourth through hole is opened on the cylinder cover; a fifth through hole is opened on the lower bottom plate of the catalyst cylinder, a third through hole matching the fifth through hole is opened on the second partition, and the end of the second gas pipe away from the adsorption tower is fixedly connected to the second partition.

[0010] In one or more embodiments of the present invention, a sixth chamber is formed between the second partition and the lower bottom plate of the second separation tank. A motor is fixedly installed in the sixth chamber. The rotating shaft of the motor passes through the second partition and is fixedly connected to the catalytic cylinder. The catalytic cylinder is rotatably connected to the fifth chamber. A fourth partition is fixedly connected inside the catalytic cylinder. A plurality of seventh chambers are formed between the fourth partition and the catalytic cylinder. The honeycomb plate is installed in the seventh chamber. A plurality of sixth through holes are opened on the cylinder cover. The plurality of sixth through holes are evenly distributed along the circumference of the cylinder cover.

[0011] In one or more embodiments of the present invention, a wire post is fixedly connected to the fourth partition, and one end of the wire post away from the fourth partition passes through the cylinder cover, the third partition, and the second separation tank. A rotary joint electrically connected to the wire post is fixedly connected to the second separation tank, and the wire post is connected to the municipal power supply through the rotary joint.

[0012] In one or more embodiments of the present invention, a through groove is provided on the catalyst cartridge, and an elastic membrane is fixedly connected to the through groove.

[0013] In one or more embodiments of the present invention, both the second and third partitions are equipped with sealing rings that match the catalytic cartridge.

[0014] In one or more embodiments of the present invention, a control panel matching the second gas separation mechanism is fixedly installed on the cabinet.

[0015] In one or more embodiments of the present invention, the adsorbent in the adsorption tower is a perovskite-type composite oxide adsorbent.

[0016] In one or more embodiments of the present invention, a pressure relief valve is fixedly installed on the adsorption tower, and a discharge pipe is fixedly connected to the pressure relief valve.

[0017] Compared with existing technologies, the exhaust gas treatment device for anesthesiology departments of the present invention can not only separate heptafluoroane and isoflurane from exhaust gas, but also catalytically decompose nitrous oxide, thereby avoiding its potential threat to the environment and human health from the source. At the same time, it can realize the in-situ regeneration of activated carbon particles, significantly reducing the cost of hospital consumable replacement and operation, and has both environmental benefits and energy-saving advantages. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a waste gas treatment device for anesthesiology departments according to one embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a cross-sectional view of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a waste gas treatment device for anesthesiology departments according to one embodiment of the present invention. Figure 2 ;

[0022] Figure 4 This is a schematic diagram showing the connection between the second separation tank and the adsorption tower of an exhaust gas treatment device for anesthesiology departments according to one embodiment of the present invention;

[0023] Figure 5 This is a cross-sectional view of the first separation tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional view of the second separator tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention. Figure 1 ;

[0025] Figure 7 This is a cross-sectional view of the second separator tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention. Figure 2 ;

[0026] Figure 8 This is a cross-sectional view of the second separator tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention. Figure 3 ;

[0027] Figure 9 This is a cross-sectional view of the second separator tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention. Figure 4 ;

[0028] Figure 10 This is a cross-sectional view of the second separator tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention. Figure 5 ;

[0029] Figure 11 This is a cross-sectional view of the second separator tank of an exhaust gas treatment device for an anesthesiology department according to an embodiment of the present invention. Figure 6 ;

[0030] Figure 12 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0031] 1. Cabinet; 2. First Separator; 21. First Baffle; 211. First Through Hole; 201. First Chamber; 202. Second Chamber; 22. Filter Cartridge; 221. Air Inlet; 222. Third Chamber; 223. Second Through Hole; 23. Activated Carbon Granules; 3. First T-Connect Pipe; 31. First Solenoid Valve; 32. First Air Pump; 33. First Air Pipe; 4. Second T-Connect Pipe; 41. Second Solenoid Valve; 5. Second Separator; 501. Fourth Chamber; 502. Fifth Chamber; 503. Sixth Chamber; 5031. Motor; 51. Second Baffle; 5101. Third Through Hole; 52. Third 5201, Fourth through hole; 53, Control panel; 54, Catalytic cylinder; 5401, Fifth through hole; 5402, Seventh chamber; 5403, Through groove; 541, Fourth partition; 5411, Column; 55, Honeycomb panel; 551, Catalyst; 56, Cylinder cover; 5601, Sixth through hole; 57, Elastic membrane; 58, Second gas pipe; 581, Second gas pump; 6, Adsorption tower; 61, Pressure relief valve; 62, Discharge pipe; 7, Third tee pipe; 71, Third solenoid valve; 72, Third gas pump; 8, Fourth tee pipe; 81, Fourth solenoid valve; 82, Fourth gas pump; 83, Third gas pipe. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figures 1 to 6 As shown, an embodiment of the present invention discloses an exhaust gas treatment device for an anesthesiology department, comprising a cabinet 1, within which a first gas separation mechanism, a second gas separation mechanism, and an adsorption tower 6 are fixedly installed. The first gas separation mechanism is used to separate heptafluoroane or isoflurane gas from the exhaust gas. It includes a pair of first separation tanks 2, each filled with activated carbon particles 23, which are activated to increase their adsorption capacity. A first three-way pipe 3 is welded to each pair of first separation tanks 2. The end of the first three-way pipe 3 furthest from the first separation tank 2 is connected to a pipeline for transporting exhaust gas in the operating room. A pair of first solenoid valves 31 corresponding to the pair of first separation tanks 2 are fixedly installed on the first three-way pipe 3. During surgery, one of the first solenoid valves 31 is opened, directing the exhaust gas exhaled by the patient into the corresponding first separation tank 2. The activated carbon particles 23 in the first separation tank 2, through their abundant microporous structure and large specific surface area, physically adsorb heptafluoroane and isoflurane from the exhaust gas.

[0035] To ensure the delivery of exhaust gas, a first air pump 32 is welded to the end of the first three-way pipe 3 away from the first separation tank 2. A first air pipe 33 is welded to the first air pump 32. A flange is welded to the first air pipe 33. The first air pipe 33 is sealed to the pipeline for delivering exhaust gas in the operating room through the flange to ensure that the exhaust gas is delivered without leakage.

[0036] A first partition 21 is horizontally welded inside the first separation tank 2, dividing the internal space of the first separation tank 2 into two independent chambers, a first chamber 201 and a second chamber 202. A first three-way pipe 3 is connected to the first chamber 201. A second three-way pipe 4, connected to the second chamber 202, is also welded onto the first separation tank 2 for the exhaust of the adsorbed waste gas. A filter cartridge 22 is fixedly connected to the first partition 21. The filter cartridge 22 has an air inlet 221, a third chamber 222, and multiple through-holes 223. Activated carbon particles 23 are filled in the third chamber 222, and the first partition 21 has a first through-hole 211 that matches the air inlet 221, forming a waste gas flow channel.

[0037] During the operation, the first air pump 32 is activated to extract the patient's exhaled waste gas. The waste gas is transported through the first air tube 33 and the first three-way tube 3 to the corresponding opened first separation tank 2. Subsequently, the waste gas is evenly dispersed into the third chamber 222 through multiple second through holes 223 on the filter cartridge 22. Then, it comes into full contact with the activated carbon particles 23 filled inside, realizing the physical adsorption and separation of heptafluoroane and isoflurane. At this time, although heptafluoroane and isoflurane in the waste gas have been adsorbed, nitrous oxide cannot be adsorbed by the activated carbon particles 23. The waste gas containing nitrous oxide enters the second chamber 202 through the second through hole 223 and is finally discharged through the second three-way tube 4 to enter the subsequent treatment stage.

[0038] The second gas separation mechanism includes a second separation tank 5. The end of the second three-way pipe 4 away from the pair of first separation tanks 2 is welded to the second separation tank 5. A pair of second solenoid valves 41 are installed on the second three-way pipe 4. When one of the first separation tanks 2 separates heptafluoroane or isoflurane in the waste gas, the corresponding second solenoid valve 41 opens synchronously. The waste gas containing nitrous oxide enters the second separation tank 5 through the second three-way pipe 4. The second separation tank 5 catalytically decomposes it to form nitrogen and oxygen, preventing the waste gas containing nitrous oxide from harming the environment and human health.

[0039] like Figures 6 to 10As shown, a catalytic converter 54 is installed inside the second separator 5, and a honeycomb plate 55 is installed inside the catalytic converter 54. The gaps in the honeycomb plate 55 are filled with catalyst 551. A temperature control module and heating elements such as heating wires are embedded in the wall of the catalytic converter 54. When energized, electrical energy is converted into heat energy, maintaining the internal temperature of the catalytic converter 54 at 350-400℃. When waste gas containing nitrous oxide enters the second separator 5, under this environment, the catalyst 551 heats and catalyzes the waste gas containing nitrous oxide, decomposing or reducing the nitrous oxide into harmless nitrogen and oxygen.

[0040] Preferably, catalyst 551 is a perovskite-type catalyst particle. Perovskite-type catalyst particles have a regular and robust crystal structure, and are not prone to sintering, phase transformation, or loss of active components at reaction temperatures of 350–650℃, resulting in a long service life. Furthermore, low-temperature activity can be further enhanced through doping.

[0041] Furthermore, such as Figures 3 to 6 As shown, a second gas pipe 58 is welded to the second separation tank 5. The second gas pipe 58 is connected to the catalytic cylinder 54. The end of the second gas pipe 58 away from the catalytic cylinder 54 is welded to the adsorption tower 6, which is filled with adsorbent. The nitrogen and oxygen mixture generated by the catalytic decomposition in the second separation tank 5 enters the adsorption tower 6 through the second gas pipe 58. The selective adsorption of the molecular sieve in the adsorption tower 6 is used to separate the nitrogen and oxygen.

[0042] Specifically, the adsorbent in adsorption tower 6 is a perovskite-type composite oxide adsorbent, and adsorption tower 6 maintains a pressure of 0.5 MPa during operation. Under these conditions, when nitrogen and oxygen at 350°C enter adsorption tower 6, the selective adsorption capacity of the perovskite-type composite oxide adsorbent for oxygen is much higher than that for nitrogen. Oxygen is efficiently retained by the adsorbent, while nitrogen penetrates the adsorbent bed and is discharged from adsorption tower 6, ultimately achieving the separation of nitrogen and oxygen.

[0043] Perovskite-type composite oxide adsorbents not only eliminate the consumption of chemical reagents and produce no pollution during the adsorption process, making them a green separation technology, but also exhibit stable and reliable adsorption capacity and strong tolerance to ambient humidity and minor impurities in the exhaust gas, ensuring the consistency and stability of nitrogen and oxygen separation effects during long-term operation.

[0044] Furthermore, such as Figure 4 and Figure 12As shown, a pressure relief valve 61 is welded onto the adsorption tower 6, and a discharge pipe 62 is welded onto the pressure relief valve 61. After the waste gas is treated, the pressure relief valve 61 is opened to release pressure from the adsorption tower 6. As the pressure inside the adsorption tower 6 drops to atmospheric pressure, the oxygen adsorbed by the perovskite composite oxide adsorbent is efficiently desorbed and discharged through the discharge pipe 62, thereby realizing the regeneration of the perovskite composite oxide adsorbent. This regeneration process does not require additional complex processes, is simple and efficient to operate, and can ensure that the adsorbent is continuously and stably adapted to the nitrogen and oxygen separation conditions, extending its cycle life.

[0045] It should be noted that since nitrous oxide has been heated to 350°C during the catalytic decomposition in the second separator 5, the temperature conditions can be directly used when the mixed gas of nitrogen and oxygen enters the adsorption tower 6 for separation. There is no need to add an additional heating device, thereby effectively reducing power consumption and achieving energy optimization.

[0046] Furthermore, such as Figures 3 to 6 As shown, a second air pump 581 is welded onto the second air pipe 58. The second air pump 581 provides stable power to ensure that the nitrogen-oxygen mixed gas after catalytic decomposition remains in the second separation tank 5, the second air pipe 58 and the adsorption tower 6, thus ensuring the continuous and efficient operation of the separation process.

[0047] Furthermore, a third three-way pipe 7 is welded onto the adsorption tower 6. The end of the third three-way pipe 7 furthest from the adsorption tower 6 is welded to the first separation tank 2 and connected to the first chamber 201. A pair of third solenoid valves 71 are fixedly installed on the third three-way pipe 7, each corresponding to one of the two first separation tanks 2. During the waste gas treatment process, one of the third solenoid valves 71 opens simultaneously. This third solenoid valve 71 corresponds to the first separation tank 2 that is not currently participating in waste gas separation. The nitrogen gas separated in the adsorption tower 6 is introduced into the first separation tank 2 through the third three-way pipe 7, purging the activated carbon particles 23 in the first separation tank 2, causing the adsorbed heptafluoroane or isoflurane to desorb, thus regenerating the activated carbon particles 23 and effectively extending their service life. Through the alternating operation and cyclic regeneration mode of the two first separation tanks 2, the operating costs of the equipment and the replacement costs of consumables can be significantly reduced.

[0048] It should be noted that since the regeneration of activated carbon particles 23 requires heating them to 250-350℃, and nitrogen, originating from the high-temperature catalytic decomposition process of waste gas, already provides this temperature, no additional heating device is needed. This significantly reduces energy consumption in the regeneration process, achieving remarkable energy savings. Furthermore, as an inert gas, nitrogen prevents oxidation of the activated carbon particles 23 at high temperatures, preventing damage to their pore structure and ensuring stable adsorption performance after regeneration.

[0049] In addition, to ensure medical safety, activated carbon granules 23 that have been regenerated more than three times must not be used for medical waste gas treatment. Instead, they can be removed and sold to the printing and dyeing, papermaking, and electroplating industries to achieve resource reuse.

[0050] Furthermore, a third air pump 72 is welded onto the third three-way pipe 7. The third air pump 72 can provide pressure for nitrogen to ensure that the nitrogen blows the surface and pores of the activated carbon particles 23 at a sufficient flow rate, thereby ensuring the desorption effect and improving the regeneration efficiency.

[0051] like Figures 1 to 5 As shown, a pair of first separation tanks 2 are welded with a fourth three-way pipe 8, which is connected to the second chamber 202. The end of the fourth three-way pipe 8 away from the first separation tank 2 is fixedly connected to a special surgical waste gas collection tank in the hospital. A pair of fourth solenoid valves 81 are fixedly installed on the fourth three-way pipe 8, each corresponding to one of the first separation tanks 2. When the activated carbon particles 23 in one of the first separation tanks 2 are regenerated, the corresponding fourth solenoid valve 81 opens, and the desorbed heptafluoroane and isoflurane are discharged into the special surgical waste gas collection tank through the fourth three-way pipe 8. When the gas pressure in the special surgical waste gas collection tank reaches the specified threshold, a professional institution can be contacted for centralized treatment, or the gas can be sold to heptafluoroane and isoflurane manufacturers for purification and recycling, achieving compliant disposal and resource reuse of hazardous gases.

[0052] Furthermore, a fourth air pump 82 is welded to the fourth three-way pipe 8, a third air pipe 83 is welded to the fourth air pump 82, a flange is installed on the third air pipe 83, and the fourth three-way pipe 8 is sealed and connected to the hospital's surgical waste gas collection tank through the third air pipe 83.

[0053] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, by combining the first gas separation mechanism and the second gas separation mechanism, not only can heptafluoroane and isoflurane in the waste gas be separated, but also nitrous oxide can be catalytically decomposed to avoid nitrous oxide in the waste gas posing a threat to the environment and human health. At the same time, activated carbon particles 23 can be regenerated to reduce the hospital's operating costs and save energy and protect the environment.

[0054] Example 2

[0055] In actual use, the continuous flow of exhaust gas can cause the temperature inside the catalytic cylinder 54 to drop, which may affect the catalytic decomposition effect of the exhaust gas. To address the above technical problem, this application proposes the following technical solution:

[0056] like Figures 4 to 11As shown, a second partition 51 and a third partition 52 are welded inside the second separator 5. A fourth chamber 501 is formed between the third partition 52 and the upper cover plate of the second separator 5. The end of the second three-way pipe 4 away from the pair of first separators 2 is connected to the fourth chamber 501. A fifth chamber 502 is formed between the second partition 51 and the third partition 52, and the catalyst cartridge 54 is located in the fifth chamber 502. A fourth through hole 5201 is opened on the third partition 52. A cartridge cover 56 is sealed to the catalyst cartridge 54. A sixth through hole 5601 matching the fourth through hole 5201 is opened on the cartridge cover 56. A fifth through hole 5401 is opened on the lower bottom plate of the catalyst cartridge 54. A third through hole 5101 matching the fifth through hole 5401 is opened on the second partition 51. The positions of the third through hole 5101 and the fourth through hole 5201 are symmetrically distributed along the central axis of the second separator 5. The end of the second gas pipe 58 furthest from the adsorption tower 6 is welded to the second partition 51 and corresponds to the third through hole 5101. A sixth chamber 503 is formed between the second partition 51 and the lower bottom plate of the second separation tank 5. A motor 5031 is fixedly installed in the sixth chamber 503. The shaft of the motor 5031 passes through the second partition 51 and is welded and fixed to the catalytic cylinder 54, so that the catalytic cylinder 54 can rotate stably in the fifth chamber 502.

[0057] Specifically, during the waste gas treatment process, the motor 5031 is in the on state, driving the catalytic cylinder 54 to rotate continuously within the second separation tank 5. During the rotation of the catalytic cylinder 54, when the sixth through-hole 5601 aligns with the fourth through-hole 5201, the waste gas in the fourth chamber 501 enters the catalytic cylinder 54. As the catalytic cylinder 54 rotates, the sixth through-hole 5601 and the fourth through-hole 5201 become misaligned, causing the waste gas to accumulate within the catalytic cylinder 54. At this time, the waste gas within the catalytic cylinder 54 cannot be discharged outwards, ensuring both the reaction time required for catalytic decomposition and preventing temperature fluctuations caused by the continuous influx of low-temperature fresh gas, thus ensuring that the waste gas undergoes catalytic decomposition at the set reaction temperature. As the catalytic cylinder 54 continues to rotate, when the fifth through-hole 5401 aligns with the third through-hole 5101, the second air pump 581 can draw the mixture of nitrogen and oxygen formed after catalytic decomposition into the adsorption tower 6.

[0058] Furthermore, both the second partition 51 and the third partition 52 are equipped with sealing rings that match the catalytic converter 54. During the rotation of the catalytic converter 54 within the fifth chamber 502, the sealing rings prevent exhaust gas leakage from the catalytic converter 54.

[0059] It is worth noting that when the sixth through hole 5601 corresponds to the fourth through hole 5201, the fifth through hole 5401 is blocked by the second partition 51, limiting the amount of waste gas that can enter the catalytic cylinder 54 and affecting the waste gas treatment efficiency. Furthermore, the honeycomb plate 55 has multiple micropores on its honeycomb wall, enabling communication between the honeycomb holes of multiple honeycomb plates 55. A through groove 5403 is formed on the catalytic cylinder 54, and an elastic membrane 57 is adhered to the through groove 5403. When the sixth through hole 5601 corresponds to the fourth through hole 5201, waste gas enters the catalytic cylinder 54 from the fourth chamber 501. At this time, the elastic membrane 57 expands under gas pressure, increasing the volume of the catalytic cylinder 54 and ensuring the entry of waste gas. As the catalytic cylinder 54 rotates, when the fifth through hole 5401 and the third through hole 5101 coincide, the gas in the catalytic cylinder 54 is drawn out, the elastic membrane 57 elastically contracts, creating a negative pressure inside the catalytic cylinder 54, which can also accelerate the discharge of waste gas inside the catalytic cylinder 54 and significantly improve the treatment efficiency of waste gas.

[0060] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, the temperature and reaction time required for the catalytic decomposition of waste gas can be guaranteed, and the intake volume and exhaust efficiency can be optimized through the elastic membrane 57, thus taking into account both treatment effect and efficiency.

[0061] Example 3

[0062] In practical use, to ensure sufficient catalytic separation of exhaust gas, the rotation speed of the catalytic cylinder 54 needs to be controlled. This leads to exhaust gas accumulation and high pressure in the fourth chamber 501. To address the above technical problems, this application proposes the following technical solution:

[0063] like Figures 6 to 11 As shown, a fourth partition plate 541 is welded to the inner wall of the catalytic cylinder 54, forming four seventh chambers 5402 between the fourth partition plate 541 and the catalytic cylinder 54. Each seventh chamber 5402 contains a honeycomb plate 55. Correspondingly, there are four sixth through holes 5601 on the cylinder cover 56 and four fifth through holes 5401 on the catalytic cylinder 54. These four sixth through holes 5601 and fifth through holes 5401 are evenly distributed along the circumference of the cylinder cover 56 and correspond to the four seventh chambers 5402. During the rotation of the catalytic cylinder 54, when a sixth through hole 5601 corresponds to a fourth through hole 5201, the waste gas in the fourth chamber 501 enters the seventh chamber 5402 for catalytic decomposition. As the catalytic cylinder 54 rotates, when the fifth through hole 5401 corresponds to a third through hole 5101, the waste gas in the seventh chamber 5402 has completed catalytic decomposition and is discharged through the second gas pipe 58. During the rotation of the catalytic converter 54, the four seventh chambers 5402 alternately complete the intake, catalysis, and exhaust processes, which greatly improves the efficiency of exhaust gas flow and effectively reduces the gas pressure in the fourth chamber 501.

[0064] Furthermore, a wire post 5411 is welded onto the fourth partition 541. The end of the wire post 5411 away from the fourth partition 541 passes through the cylinder cover 56, the third partition 52, and the second separation tank 5, and can rotate at the point of penetration. Sealing rings are installed between the wire post 5411 and the cylinder cover 56, the third partition 52, and the second separation tank 5 to ensure no exhaust gas leakage during rotation. A rotary joint that is electrically connected to the wire post 5411 is welded onto the second separation tank 5, and the wire post 5411 is connected to the municipal power supply through the rotary joint.

[0065] Specifically, the fourth partition 541 is equipped with a temperature control module and a heating wire, which can generate heat in a controllable manner after being powered on, further balancing the temperature field inside the catalytic cylinder 54 and avoiding the problem of insufficient catalytic decomposition caused by the low temperature at the center of the chamber.

[0066] It should be noted that before treating the waste gas, the second separator 5 needs to be started in advance to preheat the catalytic cylinder 54 and ensure the stability of the subsequent catalytic effect.

[0067] like Figure 1 and Figure 2 As shown, a control panel 53 is fixedly installed on the cabinet 1. The control panel 53 contains a wireless control module, which can control the temperature inside the catalytic converter 54.

[0068] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, while ensuring the catalytic decomposition effect of waste gas, the gas pressure in the fourth chamber 501 can be effectively reduced, thereby improving the safety during use.

[0069] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A waste gas treatment device for anesthesiology departments, characterized in that, Includes a cabinet (1), and the cabinet (1) contains the following fixedly installed components: The first gas separation mechanism includes a pair of first separation tanks (2), each of which is filled with activated carbon particles (23). A first three-way pipe (3) is fixedly connected to the pair of first separation tanks (2). The end of the first three-way pipe (3) away from the first separation tank (2) is connected to the exhaust gas pipe in the operating room. A pair of first solenoid valves (31) are fixedly installed on the first three-way pipe (3). The second gas separation mechanism includes a second separation tank (5), a catalyst cartridge (54) is installed inside the second separation tank (5), a honeycomb plate (55) is installed inside the catalyst cartridge (54), a catalyst (551) is filled inside the honeycomb plate (55), a second three-way pipe (4) is fixedly connected between the second separation tank (5) and a pair of first separation tanks (2), and a pair of second solenoid valves (41) are installed on the second three-way pipe (4); An adsorption tower (6) is filled with an adsorbent. A second gas pipe (58) is fixedly connected between the second separation tank (5) and the adsorption tower (6). A second gas pump (581) is installed on the second gas pipe (58). A third three-way pipe (7) is fixedly connected between the adsorption tower (6) and a pair of first separation tanks (2). A third gas pump (72) and a pair of third solenoid valves (71) are fixedly installed on the third three-way pipe (7). A fourth three-way pipe (8) is fixedly connected to a pair of first separation tanks (2), and a pair of fourth solenoid valves (81) are fixedly installed on the fourth three-way pipe (8).

2. The waste gas treatment device for anesthesiology departments according to claim 1, characterized in that, A first partition (21) is fixedly connected inside the first separation tank (2). The first partition (21) divides the space inside the first separation tank (2) into a first chamber (201) and a second chamber (202) that are independent of each other. The first three-way pipe (3) is connected to the first chamber (201). A filter cartridge (22) is fixedly connected on the first partition (21). The filter cartridge (22) is provided with an air inlet (221), a third chamber (222) and a plurality of second through holes (223). The first partition (21) is provided with a first through hole (211) that matches the air inlet (221). The activated carbon particles (23) are filled in the third chamber (222). The second three-way pipe (4) is connected to the second chamber (202). The second through hole (223) penetrates the filter cartridge (22).

3. The waste gas treatment device for anesthesiology departments according to claim 1, characterized in that, The second separation tank (5) is fixedly connected with a second partition (51) and a third partition (52). A fourth chamber (501) is formed between the third partition (52) and the upper cover of the second separation tank (5). The end of the second three-way pipe (4) away from the pair of first separation tanks (2) is connected to the fourth chamber (501). A fifth chamber (502) is formed between the second partition (51) and the third partition (52). The catalyst cylinder (54) is located in the fifth chamber (502). A fourth through hole (5201) is provided on the third partition (52). A cylinder cover (56) is sealed and connected to the catalyst cylinder (54). A sixth through hole (5601) matching the fourth through hole (5201) is provided on the cylinder cover (56). The bottom plate of the catalyst tube (54) is provided with a fifth through hole (5401), and the second partition plate (51) is provided with a third through hole (5101) that matches the fifth through hole (5401). The end of the second gas pipe (58) away from the adsorption tower (6) is fixedly connected to the second partition plate (51).

4. The waste gas treatment device for anesthesiology departments according to claim 3, characterized in that, A sixth chamber (503) is formed between the second partition (51) and the bottom plate of the second separation tank (5). A motor (5031) is fixedly installed in the sixth chamber (503). The shaft of the motor (5031) passes through the second partition (51) and is fixedly connected to the catalyst cylinder (54). The catalyst cylinder (54) is rotatably connected to the fifth chamber (502). A fourth partition (541) is fixedly connected inside the catalyst cartridge (54), and a plurality of seventh chambers (5402) are formed between the fourth partition (541) and the catalyst cartridge (54). The honeycomb plate (55) is installed in the seventh chamber (5402). The sixth through hole (5601) opened on the cylinder cover (56) is multiple, and the multiple sixth through holes (5601) are evenly distributed along the circumference of the cylinder cover (56).

5. The waste gas treatment device for anesthesiology departments according to claim 4, characterized in that, A wire post (5411) is fixedly connected to the fourth partition (541). The end of the wire post (5411) away from the fourth partition (541) passes through the cylinder cover (56), the third partition (52), and the second separation tank (5). A rotary joint that is electrically connected to the wire post (5411) is fixedly connected to the second separation tank (5). The wire post (5411) is connected to the municipal power supply through the rotary joint.

6. The waste gas treatment device for anesthesiology departments according to claim 4, characterized in that, The catalyst cartridge (54) has a through groove (5403) and an elastic membrane (57) is fixedly connected to the through groove (5403).

7. The waste gas treatment device for anesthesiology departments according to claim 4, characterized in that, Both the second partition (51) and the third partition (52) are equipped with sealing rings that match the catalyst cartridge (54).

8. The waste gas treatment device for anesthesiology departments according to claim 1, characterized in that, A control panel (53) matching the second gas separation mechanism is fixedly installed on the cabinet (1).

9. The waste gas treatment device for anesthesiology departments according to claim 1, characterized in that, The adsorbent in the adsorption tower (6) is a perovskite-type composite oxide adsorbent.

10. The waste gas treatment device for anesthesiology departments according to claim 9, characterized in that, A pressure relief valve (61) is fixedly installed on the adsorption tower (6), and a discharge pipe (62) is fixedly connected to the pressure relief valve (61).

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