Direct hanging type carbon dioxide absorber

Abstract

The utility model relates to the field of carbon dioxide absorption equipment, and discloses a direct hanging type carbon dioxide absorber which comprises a hollow shell, an air inlet and an air outlet, the air inlet and the air outlet are arranged at two ends of the shell, and a sieve plate is horizontally arranged in the shell and divides the shell into an upper absorption area and a lower filtering area. The absorption area is filled with an absorption assembly for absorbing carbon dioxide, the top of the shell extends downwards to form a baffle with the bottom in contact with the sieve plate, the baffle enables the absorption area to be communicated with a front absorption area communicated with the air inlet and a rear absorption area communicated with the air outlet, and the air inlet, the front absorption area, the filtering area, the rear absorption area and the air outlet sequentially form a complete airflow channel. According to the absorber, the absorption rate of carbon dioxide in gas is increased, the utilization rate of the absorption assembly is increased, and the service life of the absorption assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide absorption equipment, in particular to a direct-hanging carbon dioxide absorber. Background Art

[0002] The working principle of the carbon dioxide absorber is that the carbon dioxide absorbent contained therein reacts chemically with carbon dioxide to achieve the absorption of carbon dioxide. When the carbon dioxide absorber is used to absorb the exhaled gas in the breathing circuit of the anesthesia machine, the exhaled gas in the breathing circuit of the anesthesia machine enters the carbon dioxide absorber through the gas inlet pipe, and the gas absorbed by the carbon dioxide absorber returns to the breathing circuit of the anesthesia machine through the gas outlet pipe.

[0003] A Chinese patent with announcement number CN112156316B discloses a carbon dioxide absorber, including an outer shell, an air inlet duct, an air outlet duct and an absorbent sieve plate located inside the outer shell. The outer shell is hollow and has an air inlet and an air outlet at the upper end. The absorbent sieve plate is horizontally arranged in the outer shell to divide the outer shell into an absorption area and a dust collection area. The air inlet duct is sealed and connected to the air inlet. An air outlet hole is opened at the lower end of the air inlet duct. The air inlet is connected to the absorption area through the air outlet hole. The air outlet duct is connected to the air outlet. The bottom of the air outlet duct is sealed and an air inlet hole is arranged on the upper side wall. The air outlet duct is connected to the absorption area through the air inlet hole.

[0004] The patent also discloses that the operating process of the above absorber is as follows: the gas containing carbon dioxide enters the air inlet pipe from the air inlet, enters the absorption zone from the air outlet at the lower end of the air inlet pipe, and diffuses into the absorption zone to be absorbed by the carbon dioxide absorbent, and finally the gas without carbon dioxide enters the air outlet pipe from the air inlet and is discharged from the outlet.

[0005] However, the carbon dioxide absorber disclosed in the patent has its air inlet pipe, air outlet hole, air outlet pipe and air inlet hole all distributed in the absorption zone, which is an open area. The diffusion path of the carbon dioxide-containing gas flow is random during the diffusion process, and there is a high probability that it will be sucked into the air outlet pipe before being absorbed by the carbon dioxide absorbent, resulting in low absorption efficiency. Utility Model Content

[0006] The utility model aims at the disadvantages of the prior art that the absorption zone is an open area, the diffusion path of the gas containing carbon dioxide therein is random, and the gas discharged from the outlet has a high probability of containing carbon dioxide, and provides a direct-hanging carbon dioxide absorber with improved carbon dioxide absorption rate.

[0007] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] A directly hung carbon dioxide absorber comprises a hollow shell and an air inlet and an air outlet arranged at both ends of the shell. A sieve plate is horizontally arranged in the shell, and the sieve plate divides the shell into an upper absorption zone and a lower filtration zone. The absorption zone is filled with an absorption component for absorbing carbon dioxide. A baffle plate extends downward from the top of the shell, and the bottom contacts the sieve plate. The baffle plate connects the absorption zone with a front absorption zone connected to the air inlet and a rear absorption zone connected to the air outlet. The air inlet, the front absorption zone, the filtration zone, the rear absorption zone and the air outlet form a complete airflow channel in sequence.

[0009] By adopting the above scheme, a baffle is set in the shell, and the baffle divides the absorption zone into a front absorption zone and a rear absorption zone. The air inlet, the front absorption zone, the filter zone, the rear absorption zone and the air outlet form a long gas flow channel. The carbon dioxide-containing gas entering the shell cannot diffuse randomly, but can only diffuse along the direction of the gas flow channel. This design prolongs the contact time between the gas and the absorption component, improves the absorption rate of carbon dioxide in the gas, and the gas can contact the absorption component more evenly, thereby improving the utilization rate of the absorption component and extending the service life of the absorption component.

[0010] Preferably, the absorption assembly comprises an upper filter element, a carbon dioxide absorbent and a lower filter element arranged from top to bottom.

[0011] With the above solution, the upper filter element and the lower filter element are used to block the dust contained in the carbon dioxide absorbent to prevent it from being inhaled by the human body.

[0012] Preferably, the upper filter element and the lower filter element are cotton or sponge; and the carbon dioxide absorbent is lime.

[0013] By adopting the above scheme, the cotton or sponge can allow the gas to pass smoothly, has a good interception effect on the powder particles in the carbon dioxide absorbent, and the lime can effectively absorb carbon dioxide.

[0014] Preferably, the outer shell includes a cover shell with an opening facing downward and a base bracket which is sealed and fixed to the bottom of the cover shell and has an opening facing upward. The upper end of the base bracket is partially inserted into the cover shell and the sieve plate overlaps the upper end surface of the base bracket.

[0015] By adopting the above scheme, the base and the cover shell are detachably arranged, which is convenient for installing the absorption component. The sieve plate is overlapped on the upper end surface of the base and can carry the absorption component.

[0016] Preferably, the upper end of the sieve plate is recessed with a slot into which the lower end of the baffle plate can be partially inserted.

[0017] By adopting the above solution, after the sieve plate and the baffle plate are partially plugged together, the sieve plate is limited between the baffle plate and the bottom bracket, thereby limiting the absorption components on both sides of the baffle plate from displacement.

[0018] Preferably, a first convex ring is protruded around the circumference of the lower end of the outer ring wall of the cover shell, and a second convex ring is protruded around the circumference of the upper end of the outer ring wall of the base, which abuts against the lower end face of the first convex ring. The lower end face of the first convex ring is recessed with a concentric annular groove, and the upper end face of the second convex ring is protruded with a clamping ring that can be snapped into the annular groove.

[0019] By adopting the above solution, the cover shell and the base can be fixedly connected by the clamping ring and the ring groove.

[0020] Preferably, the air inlet and the air outlet are symmetrically arranged on both sides of the shell, and plugs for sealing the air inlet and the air outlet are respectively arranged on the air inlet and the air outlet.

[0021] By adopting the above solution, the first blockage and the second blockage can block the air inlet and the air outlet, thereby preventing the absorber from consuming the internal absorption components when it is not in use.

[0022] Preferably, a connecting piece is connected between the two plugs, and when the two plugs are respectively sealed and plugged on the air inlet and the air outlet, the connecting piece bends and forms a lifting ring.

[0023] By adopting the above solution, the carrying ring formed by the connecting piece makes it convenient for the user to quickly take out the target carbon dioxide absorber from the box of carbon dioxide absorbers.

[0024] The utility model has significant technical effects due to the adoption of the above technical scheme: a baffle is arranged in the shell, and the baffle divides the absorption zone into a front absorption zone and a rear absorption zone. The air inlet, the front absorption zone, the filter zone, the rear absorption zone and the air outlet form a relatively long gas flow channel. The carbon dioxide-containing gas entering the shell cannot diffuse randomly, but can only diffuse along the direction of the gas flow channel. This design prolongs the contact time between the gas and the absorption component, improves the absorption rate of carbon dioxide in the gas, and the gas can contact the absorption component more evenly, improves the utilization rate of the absorption component, and prolongs the service life of the absorption component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a disassembled diagram of a direct-hanging carbon dioxide absorber of this embodiment;

[0026] Figure 2 is an axonometric view of a direct-mounted carbon dioxide absorber of this embodiment;

[0027] Figure 3 This is a front view of a direct-hanging carbon dioxide absorber of this embodiment;

[0028] Figure 4 yes Figure 3 AA cross-sectional view.

[0029] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. outer shell; 101. cover shell; 102. base; 2. plugging; 3. connecting piece; 4. air inlet; 5. air outlet; 6. baffle; 7. front absorption zone; 8. rear absorption zone; 9. upper filter element; 10. lower filter element; 11. sieve plate; 1101. slot; 12. first convex ring; 1201. ring groove; 13. second convex ring; 1301. retaining ring; 14. filter zone. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] A direct-mounted carbon dioxide absorber, referring to Figure 1-Figure 4 As shown, the shell 1 includes a cover shell 101 with an opening downward and a base bracket 102 which is sealed and fixed at the bottom of the cover shell 101 and has an opening upward. The upper end of the base bracket 102 is partially inserted into the cover shell 101 and is fixed to the cover shell 1 by a clamping structure. The clamping structure includes a first convex ring 12 which is convexly arranged around the circumference of the lower end of the outer ring wall of the cover shell 101, and a second convex ring 13 which is convexly arranged around the circumference of the upper end of the outer ring wall of the base bracket 102 and abuts against the lower end face of the first convex ring 12. The lower end face of the first convex ring 12 is recessed with a concentric annular groove 1201, and the upper end face of the second convex ring 13 is convexly provided with a clamping ring 1301 which can be clamped into the annular groove 1201.

[0032] See Figure 4 As shown, a sieve plate 11 is overlapped on the upper end of the base 102, the upper end of the sieve plate 11 is the absorption zone, the lower end of the sieve plate 11 is the filtration zone 14, a slot 1101 is recessed in the middle of the upper end of the sieve plate 11, and a baffle 6 with a bottom connected to the slot 1101 extends downward from the center of the top of the cover shell 101. The baffle 6 divides the absorption zone into a front absorption zone 7 and a rear absorption zone 8. Air inlets 4 connected to the front absorption zone 7 and air outlets 5 connected to the rear absorption zone 8 are symmetrically arranged on the upper sides of the cover shell 101. The air inlet 4, the front absorption zone 7, the filtration zone 14, the rear absorption zone 8 and the air outlet 5 in sequence form a complete air flow channel.

[0033] A group of absorption components are respectively arranged in the front absorption zone 7 and the rear absorption zone 8. The absorption components include an upper filter element 9, a carbon dioxide absorbent (not shown) and a lower filter element 10 from top to bottom. The upper filter element 9 and the lower filter element 10 are sponges or cotton. The cotton or sponge allows the gas to pass smoothly and has a good interception effect on the powdered particles in the carbon dioxide absorbent. The carbon dioxide absorbent is lime.

[0034] A plug 2 for sealing the air inlet 4 and the air outlet 5 is respectively provided, and a connector 3 is connected between the two plugs 2. When the two plugs 2 are respectively sealed and plugged into the air inlet 4 and the air outlet 5, the connector 3 bends and forms a lifting ring. The lifting ring formed by the connector 3 is convenient for the user to quickly take the target carbon dioxide absorber from the box of carbon dioxide absorbers.

[0035] After the carbon dioxide-containing gas enters from the air inlet 4, it first enters the pre-absorption zone 7, passes through the upper filter element 9, the carbon dioxide absorbent and the lower filter element 10 in turn in the pre-absorption zone 7, and then enters the filtration zone 14 through the sieve plate 11. After coming out of the filtration zone 14, it enters the post-absorption zone 8, passes through the lower filter element 10, the carbon dioxide absorbent and the upper filter element 9 in turn in the post-absorption zone 8, and is discharged from the cover 101 from the air outlet 5. The above design prolongs the contact time between the carbon dioxide-containing gas and the absorption component, improves the absorption rate of carbon dioxide in the gas, and the gas can contact the absorption component more evenly, improves the utilization rate of the absorption component, and prolongs the service life of the absorption component.

[0036] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A directly mounted carbon dioxide absorber, comprising a hollow shell (1) and an air inlet (4) and an air outlet (5) arranged at both ends of the shell (1), a sieve plate (11) being arranged horizontally in the shell (1), the sieve plate (11) dividing the shell (1) into an upper absorption zone and a lower filtering zone (14), the absorption zone being filled with an absorption component for absorbing carbon dioxide, characterized in that: A baffle plate (6) extends downward from the top of the housing (1) and has a bottom in contact with the sieve plate (11). The baffle plate (6) connects the absorption zone to a front absorption zone (7) connected to the air inlet (4) and a rear absorption zone (8) connected to the air outlet (5). The air inlet (4), the front absorption zone (7), the filtration zone (14), the rear absorption zone (8) and the air outlet (5) sequentially form a complete airflow channel.

2. A direct-hanging carbon dioxide absorber according to claim 1, characterized in that: The absorption component comprises an upper filter element (9), a carbon dioxide absorbent and a lower filter element (10) which are arranged from top to bottom.

3. A direct-hanging carbon dioxide absorber according to claim 2, characterized in that: The upper filter element (9) and the lower filter element (10) are cotton or sponge; the carbon dioxide absorbent is lime.

4. A direct-hanging carbon dioxide absorber according to claim 1, characterized in that: The housing (1) comprises a cover shell (101) with an opening facing downward and a base bracket (102) which is sealed and clamped to the bottom of the cover shell (101) and has an opening facing upward. The upper end of the base bracket (102) is partially inserted into the cover shell (101) and the sieve plate (11) overlaps the upper end surface of the base bracket (102).

5. A direct-hanging carbon dioxide absorber according to claim 4, characterized in that: The upper end of the sieve plate (11) is recessed with a slot (1101) into which the lower end of the baffle plate (6) can be partially inserted.

6. A direct-hanging carbon dioxide absorber according to claim 4, characterized in that: A first convex ring (12) is convexly provided at the lower end of the outer ring wall of the cover shell (101) around its circumference, and a second convex ring (13) is convexly provided at the upper end of the outer ring wall of the base (102) around its circumference and abuts against the lower end surface of the first convex ring (12). A concentric annular groove (1201) is recessed in the lower end surface of the first convex ring (12), and a snap ring (1301) that can be snapped into the annular groove (1201) is convexly provided on the upper end surface of the second convex ring (13).

7. A direct-hanging carbon dioxide absorber according to claim 1, characterized in that: The air inlet (4) and the air outlet (5) are symmetrically arranged on both sides of the housing (1), and plugs (2) for sealing the air inlet (4) and the air outlet (5) are respectively arranged on the air inlet (4) and the air outlet (5).

8. A direct-hanging carbon dioxide absorber according to claim 7, characterized in that: A connecting piece (3) is connected between the two seals (2); when the two seals (2) are respectively plugged and sealed on the air inlet (4) and the air outlet (5), the connecting piece (3) bends and forms a lifting ring.

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