Waste gas treatment device and anesthesia machine

Abstract

The utility model is suitable for the technical field of waste gas filtering treatment, and provides a waste gas treatment device and an anaesthesia machine. The waste gas treatment device comprises a shell, one end of the shell is provided with a gas inlet channel, the other opposite end of the shell is provided with a gas exhaust channel, a flow baffle used for reducing the flowing speed of gas flowing into an inner cavity of the shell from the gas inlet channel is arranged in the inner cavity of the shell, the flow baffle is connected with the inner wall of the shell, and a cavity, communicated with the gas inlet channel, of one side of the flow baffle is a gas cavity; a cavity, communicated with the exhaust channel, on the other side is a filter cavity, a filter layer is arranged in the filter cavity, and the air cavity is communicated with the filter cavity. The exhaust gas diffuses all around under the blocking effect of the flow baffle, so that the flow speed of the exhaust gas is reduced, the exhaust gas can fully react with the filter layer, harmful exhaust gas discharged into the air is reduced, the effect of purifying the gas is achieved, the cleanliness degree of the air around the operating room is greatly improved, and environmental pollution is reduced. And meanwhile, the device is simple in structure and beneficial to large-scale popularization and application.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a waste gas treatment device and an anesthesia machine. Background Art

[0002] With the development of medical and health care in China, medical technology and service levels have made great progress, but there are still certain problems in facility construction. There will be a lot of medical waste gas during medical surgery, especially the anesthetic waste gas generated during the anesthesia process of the operation, the main components of which are N2O and volatile organic gases (sevoflurane, isoflurane, etc.). The treatment of anesthetic waste gas is generally to install a waste gas treatment system. However, due to the high cost of installing a waste gas treatment system, ordinary hospitals (especially veterinary hospitals) generally discharge waste gas directly into the air. On the one hand, N2O and halogenated gases containing chlorine or bromine (such as isoflurane and halothane) can deplete the ozone layer and reduce the ultraviolet radiation shielding effect of the ozone layer, thereby polluting the environment; on the other hand, in a working environment where the inhaled anesthetic is poorly or insufficiently removed, medical staff exposed to inhaled anesthetics have certain health hazards (such as liver disease, kidney disease, neurological disease, cancer, spontaneous abortion or congenital malformations), which can easily cause adverse effects on the health of medical staff. Utility Model Content

[0003] The utility model provides a waste gas treatment device and anesthesia machine, aiming to solve the problem that hospitals directly discharge untreated medical waste gas into the air, causing environmental pollution and adverse effects on the health of medical staff.

[0004] The utility model is implemented by providing an exhaust gas treatment device, comprising:

[0005] A shell, one end of which is provided with an air inlet passage, and the other end of which is provided with an air exhaust passage, and a baffle is provided in the inner cavity of the shell for slowing down the flow speed of gas flowing from the air inlet passage into the inner cavity of the shell;

[0006] The baffle is connected to the inner wall of the shell, the chamber on one side of the baffle connected to the air inlet channel is an air chamber, and the chamber on the other side of the baffle connected to the exhaust channel is a filter chamber;

[0007] A filter layer is arranged in the filter cavity, and the air cavity is communicated with the filter cavity.

[0008] In some embodiments of the present application, a plurality of through holes are disposed on the baffle plate, and a solid surface of the baffle plate is disposed directly below the air intake passage.

[0009] In some embodiments of the present application, the actual width of the center of the baffle is not less than the width of the air intake channel.

[0010] In some embodiments of the present application, the through holes are evenly arranged on the baffle.

[0011] In some embodiments of the present application, the filter layer includes a filter cotton layer and an activated carbon layer, and the activated carbon layer is sandwiched in the filter cotton layer.

[0012] In some embodiments of the present application, sound-absorbing cotton layers are provided on the upper and lower sides of the filter layer respectively.

[0013] In some embodiments of the present application, an exhaust area is provided in one end of the filter cavity away from the air cavity, and the exhaust area is communicated with the exhaust channel.

[0014] In some embodiments of the present application, the exhaust area includes a surrounding wall extending from a side wall of the shell, and at least one air diffusion hole is provided on the surrounding wall.

[0015] In some embodiments of the present application, the shell includes a shell cover and a shell body, the shell cover and the shell body are detachably connected, the air inlet channel is arranged on the shell cover, and the exhaust channel is arranged at the bottom of the shell body.

[0016] The utility model also provides an anesthesia machine provided with the above-mentioned waste gas treatment device.

[0017] The utility model provides a waste gas treatment device which is provided with a shell, an air inlet channel, an exhaust channel, a baffle, an air cavity and a filter layer. During the operation, the anesthetic waste gas is introduced into the air cavity from the air inlet channel. The waste gas diffuses to the surroundings under the blocking effect of the baffle, so that the waste gas flow rate is reduced, so that the waste gas can react more fully with the filter layer, and the harmful waste gas is reduced from being discharged into the air. The waste gas enters the filter layer through the through hole or gap of the baffle. Due to the high adsorption type of the activated carbon layer in the filter layer, the organic gas (sevoflurane, isoflurane, etc.) in the waste gas is tightly adsorbed on the surface of the activated carbon, and the filtered gas flows out from the exhaust channel, thereby achieving the effect of purifying the gas, greatly improving the cleanliness of the air around the operating room, and also reducing environmental pollution to a greater extent. At the same time, the device has a simple structure and low cost, which is conducive to large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the exhaust gas treatment device provided by the embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the front view of the exhaust gas treatment device provided by the embodiment of the utility model;

[0020] Figure 3 This is a cross-sectional view of the exhaust gas treatment device provided by an embodiment of the utility model taken along the AA plane;

[0021] Figure 4It is a three-dimensional diagram of a baffle plate of an exhaust gas treatment device provided by an embodiment of the utility model;

[0022] Among them, the reference numerals in the figure are:

[0023] 1-shell; 11-shell cover; 12-shell body; 2-inlet channel; 3-exhaust channel; 4-air cavity; 5-baffle; 51-through hole; 52-solid surface of baffle; 53-raised portion; 6-filter layer; 61-filter cotton layer; 62-activated carbon layer; 7-silence cotton layer; 8-exhaust area; 81-enclosing wall; 82-air diffusion hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The waste gas treatment device provided by the embodiment of the utility model is provided with a shell, an air inlet channel, an exhaust channel, a baffle, an air cavity and a filter layer. During the operation, the anesthetic waste gas is introduced into the air cavity from the air inlet channel. The waste gas diffuses around the air cavity under the blocking effect of the baffle, so that the waste gas flow rate is reduced, so that the waste gas can react more fully with the filter layer, and reduce the emission of harmful waste gas into the air. The waste gas enters the filter layer through the through hole or gap of the baffle. Due to the high adsorption type of the activated carbon layer in the filter layer, the organic gas (sevoflurane, isoflurane, etc.) in the waste gas is tightly adsorbed on the surface of the activated carbon, and the filtered gas flows out from the exhaust channel, thereby achieving the effect of purifying the gas, greatly improving the cleanliness of the air around the operating room, and can also reduce environmental pollution to a greater extent. At the same time, the structure of the device is simple and the cost is low, which is conducive to large-scale promotion and use.

[0026] Please refer to Figures 1 to 4 , an exhaust gas treatment device provided by an embodiment of the utility model includes:

[0027] A shell 1, an air inlet passage 2 is provided at one end of the shell, an air exhaust passage 3 is provided at the other opposite end, and a baffle 5 is provided in the inner cavity of the shell for slowing down the flow speed of gas flowing from the air inlet passage into the inner cavity of the shell 1;

[0028] The baffle plate 5 is connected to the inner wall of the housing 1. The chamber on one side of the baffle plate 5 that is connected to the air inlet channel 2 is the air chamber 4, and the chamber on the other side that is connected to the air outlet channel 3 is the filter chamber.

[0029] A filter layer 6 is arranged in the filter cavity, and the air cavity 4 is communicated with the filter cavity.

[0030] An exhaust gas treatment device provided by an embodiment of the utility model is provided with a shell 1, an air inlet channel 2, an exhaust channel 3, a baffle 5, an air cavity 4 and a filter cavity. During the operation, the anesthetic waste gas is introduced into the air cavity 4 from the air inlet channel 2. The waste gas is diffused around the air cavity 4 under the blocking effect of the baffle 5, and the flow rate of the waste gas is reduced, so that the waste gas passes through the through hole or gap of the baffle 5 at a slow speed and enters the filter cavity.

[0031] The connection method between the baffle plate 5 and the inner wall of the shell 1 can be specifically an interference fit between the outer edge of the baffle plate 5 and the inner wall of the shell 1, or a snap-fit ​​connection, or a threaded connection, or other common connection methods.

[0032] A filter layer 6 is arranged in the filter cavity, and the filter layer has high adsorption. After the exhaust gas slowly passes through the through hole or gap of the baffle plate 5 and enters the filter cavity, the organic gas (sevoflurane, isoflurane, etc.) in the exhaust gas fully contacts with the filter layer 6 after the flow rate decreases, and is tightly adsorbed on the filter layer 6. The filtered clean gas flows out from the exhaust channel 3, thereby purifying the exhaust gas, greatly improving the cleanliness of the air around the operating room, and reducing environmental pollution to a greater extent. At the same time, the device has a simple structure and low cost, which is conducive to large-scale promotion and use.

[0033] See also Figure 4 In the embodiment of the utility model, the baffle plate 5 is provided with a plurality of through holes 51, and the solid surface 52 of the baffle plate 5 is arranged directly below the air inlet passage 2. The baffle plate 5 is connected to the inner wall of the housing 1, and the baffle plate 5 presses the filter layer into the housing 1 by the interference fit with the housing; the solid surface 52 of the baffle plate is made of an airtight hard material, such as plastic, metal or wood. When the exhaust gas is introduced from the air inlet passage 2, since the solid surface 52 of the baffle plate is arranged directly below the air inlet passage 2, it will first hit the solid surface 52 of the baffle plate, and then diffuse to the surroundings of the air cavity 4, so that the exhaust gas flow rate is reduced, which is conducive to the full contact reaction between the exhaust gas and the filter cavity 6, and the exhaust gas is filtered more completely. Exemplarily, a raised portion 53 perpendicular to the baffle plate 5 is provided on the edge of the baffle plate 5. The baffle plate 5 is in parallel contact with the shell through the raised portion 53, so that the baffle plate 5 can fit the inner wall of the shell more closely, thereby stabilizing the baffle plate 5 and preventing the baffle plate 5 from being displaced by the exhaust gas.

[0034] As an embodiment of the utility model, the width of the solid surface 52 of the baffle plate is not less than the width of the air intake channel 2, so that the exhaust gas introduced from the air intake channel 2 can completely hit the solid surface 52 of the baffle plate, diffuse and slow down in the air cavity 4, and avoid part of the exhaust gas directly entering the filter cavity without deceleration, which is beneficial to the subsequent sufficient filtration of the exhaust gas.

[0035] As an embodiment of the present invention, the through holes 51 are evenly arranged on the baffle plate 5. The through holes 51 are evenly arranged, which is conducive to the exhaust gas to evenly pass through the filter layer 6 and react more fully in the filter cavity, thereby achieving the filtering and cleaning effect to the greatest extent.

[0036] See also Figure 3 As an embodiment of the present invention, the filter layer 6 includes a filter cotton layer 61 and an activated carbon layer 62, and the activated carbon layer 62 is sandwiched in the filter cotton layer 61. Exemplarily, the activated carbon layer 62 is sandwiched between two layers of filter cotton; or the activated carbon layer 62 is sandwiched between a layer of filter cotton.

[0037] In this embodiment, the filter cotton layer 61 is composed of a multi-layer fiber mesh structure and has good filtering performance. It can block tiny particles, bacteria and harmful substances from passing through the filter cotton layer to ensure the filtering effect; in addition, the filter cotton has a strong adsorption capacity and can absorb harmful gases and odors in the exhaust gas; at the same time, the filter cotton is made of special materials and has strong corrosion resistance. It can withstand the erosion of chemical substances, maintain the filtering effect and extend the service life; in addition, the filter cotton material is easy to clean and can be cleaned by washing or blowing. After cleaning the filter cotton, its filtering performance is restored and it can be used repeatedly to reduce the cost of use.

[0038] The activated carbon in the activated carbon layer 62 is granular or honeycomb-shaped. Because it has a porous structure and a large surface area, when the exhaust gas passes through the activated carbon, it is in full contact with the activated carbon, and the pollutants are trapped in the pores, thereby achieving the effect of purifying the gas.

[0039] In the present embodiment, during the exhaust gas filtration process, since the activated carbon layer 62 in the filter layer of the filter chamber 6 has a high adsorption type, after the exhaust gas slowly passes through the through hole or gap of the baffle 5 into the filter chamber 6, the organic gas (sevoflurane, isoflurane, etc.) in the exhaust gas is fully in contact with the activated carbon layer 62 after the flow rate decreases, and is tightly adsorbed on the surface of the activated carbon. Single activated carbon adsorption filtration will cause the activated carbon to fill up too quickly, and the treatment effect is unstable. In the present embodiment, the activated carbon layer 62 is sandwiched in the filter cotton layer, and the strong filtering and adsorption effect of the filter cotton is utilized to fully filter and clean the exhaust gas. At the same time, the filter cotton can reduce the loss of activated carbon, greatly extending the service life of the entire filter layer.

[0040] As an embodiment of the present utility model, a sound-absorbing cotton layer 7 is provided on the upper and lower sides of the filter chamber respectively. Preferably, the sound-absorbing cotton is made of glass fiber cotton, because it has the advantages of good noise absorption effect, stable chemical properties, not easy to age, and weathering resistance. In addition, the sound-absorbing cotton can also be made of other materials; illustratively, the sound-absorbing cotton layer 7 can be tightly connected to the filter chamber by means of adhesive stickers, stitches, etc., so that the gas can flow smoothly.

[0041] As an embodiment of the present utility model, an exhaust area 8 is provided in one end of the filter cavity away from the air cavity 4 , and the exhaust area 8 is communicated with the exhaust channel 3 .

[0042] In this embodiment, for example, a larger cavity is set as the exhaust area 8, and the gas purified by the filter cavity enters the exhaust area 8. Since the cavity volume of the exhaust area 8 is large, the exhaust gas diffuses therein slowly, and then the clean gas is slowly discharged to the outside of the shell 1 through the exhaust channel 3, which greatly reduces the noise pollution during the exhaust process.

[0043] As an embodiment of the present invention, the exhaust area 8 includes a surrounding wall 81 extending from the side wall of the housing 1, and the surrounding wall 81 is provided with at least one air diffusion hole 82. In some embodiments of the present invention, the air diffusion hole 82 is provided at one end of the exhaust area 8 away from the filter chamber 6, which is more conducive to the gas being decelerated in the exhaust area 8 and discharged from the housing 1.

[0044] As an embodiment of the present invention, the air diffusion holes 82 are evenly arranged on the surrounding wall 81. The air diffusion holes 82 are evenly arranged on the surrounding wall 81, which is conducive to the uniform discharge of the filtered clean gas to the outside.

[0045] As an embodiment of the utility model, the shell includes a shell cover 11 and a shell body 12 , the shell cover 11 and the shell body 12 are detachably connected, the air inlet channel 2 is arranged on the shell cover 11 , and the exhaust channel 3 is arranged at the bottom of the shell body 12 .

[0046] In this embodiment, when the filter layer, silencer cotton layer 7 and other components in the shell filter exhaust gas for a long time or under high load, the cleaning effect of the silencer cotton layer 7 or the filter layer will be greatly reduced and fail to meet the requirements in the medical environment. Since the shell cover 1 and the shell body 2 are easy to disassemble, the user can replace the silencer cotton layer 7 or the filter layer 6 in the shell, so that the processing device can be recycled. In addition, recycling is more conducive to reducing the cost of use and promoting its use on a large scale.

[0047] This embodiment also provides an anesthesia machine provided with the above-mentioned waste gas treatment device.

[0048] The beneficial effects of the anesthesia machine of this embodiment are equivalent to the beneficial effects of the above-mentioned waste gas treatment device, and will not be described in detail here.

[0049] The waste gas treatment device provided by the embodiment of the utility model is provided with a shell, an air inlet channel, an exhaust channel, a baffle, an air cavity and a filter layer. During the operation, the anesthetic waste gas is introduced into the air cavity from the air inlet channel. The waste gas diffuses around the air cavity under the blocking effect of the baffle, so that the waste gas flow rate is reduced, so that the waste gas can react more fully with the filter layer, and reduce the emission of harmful waste gas into the air. The waste gas enters the filter layer through the through hole or gap of the baffle. Due to the high adsorption type of the activated carbon layer in the filter layer, the organic gas (sevoflurane, isoflurane, etc.) in the waste gas is tightly adsorbed on the surface of the activated carbon, and the filtered gas flows out from the exhaust channel, thereby achieving the effect of purifying the gas, greatly improving the cleanliness of the air around the operating room, and can also reduce environmental pollution to a greater extent. At the same time, the structure of the device is simple and the cost is low, which is conducive to large-scale promotion and use.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas treatment device, characterized in that: The invention comprises a shell, one end of which is provided with an air inlet passage, the other end of which is provided with an air outlet passage, and the inner cavity of the shell is provided with a baffle plate for slowing down the flow speed of gas flowing from the air inlet passage into the inner cavity of the shell; The baffle is connected to the inner wall of the shell, the chamber on one side of the baffle connected to the air inlet channel is an air chamber, and the chamber on the other side of the baffle connected to the exhaust channel is a filter chamber; A filter layer is arranged in the filter cavity, and the air cavity is communicated with the filter cavity.

2. The exhaust gas treatment device according to claim 1, characterized in that: The baffle plate is provided with a plurality of through holes, and the solid surface of the baffle plate is provided directly below the air intake passage.

3. An exhaust gas treatment device as claimed in claim 2, characterized in that: The actual width of the center of the baffle is not less than the width of the air intake passage.

4. An exhaust gas treatment device according to claim 2 or 3, characterized in that: The through holes are evenly arranged on the baffle plate.

5. The exhaust gas treatment device according to claim 1, characterized in that: The filter layer comprises a filter cotton layer and an activated carbon layer, and the activated carbon layer is sandwiched in the filter cotton layer.

6. The exhaust gas treatment device according to claim 5, characterized in that: The filter layer is provided with sound-absorbing cotton layers on the upper and lower sides respectively.

7. The exhaust gas treatment device according to claim 1, characterized in that: An exhaust area is arranged on one side of the filter cavity away from the air cavity, and the exhaust area is communicated with the exhaust channel.

8. The exhaust gas treatment device according to claim 7, characterized in that: The exhaust area comprises a surrounding wall extending from the side wall of the shell, and at least one air diffusion hole is arranged on the surrounding wall.

9. The exhaust gas treatment device according to claim 1, characterized in that: The shell body comprises a shell cover and a shell body, wherein the shell cover and the shell body are detachably connected, the air inlet passage is arranged on the shell cover, and the air outlet passage is arranged at the bottom of the shell body.

10. An anesthesia machine, characterized in that: An exhaust gas treatment device as claimed in any one of claims 1 to 9 is provided.

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