CN110947061B

CN110947061B - Anesthetic gas recovery device for anesthesia machine

Info

Publication number: CN110947061B
Application number: CN201911306407.6A
Authority: CN
Inventors: 吴桂生
Original assignee: Liaocheng people's hospital
Current assignee: Liaocheng people's hospital
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2022-03-29
Anticipated expiration: 2039-12-18
Also published as: CN110947061A

Abstract

The invention discloses an anesthetic gas recovery device for an anesthesia machine, which comprises a first collection device and a second collection device, wherein the first collection device is positioned inside an equipment box, the second collection device is positioned outside the equipment box, the first collection device comprises a first equipment box, a first gas tank, a second gas tank, a separation box and a distillation box, a first gas pump and a purification box are arranged in the first equipment box, one end of the first gas pump is communicated with the purification box, and the other end of the first gas pump is communicated with the separation box through a U-shaped pipe. This gas recovery device passes through the cooperation of first collection device and second collection device, according to the difference of oxygen and nitrous oxide object characteristic and melting point, realizes categorised the recovery, through gas recovery device's design, has realized on the one hand that the resource is recycled to gas classification, but through purification secondary use, has realized the resource and has recycled, and on the other hand has avoided the direct problem that causes the pollution of residual gas to the environment of discharging.

Description

Anesthetic gas recovery device for anesthesia machine

Technical Field

The invention relates to the technical field of gas recovery equipment of an anesthesia machine, in particular to an anesthesia gas recovery device for an anesthesia machine.

Background

The anesthesia machine sends the anesthetic into the alveolus of the patient through a mechanical loop to form the gas partial pressure of the anesthetic, and after the gas partial pressure is dispersed into blood, the gas partial pressure directly inhibits the central nervous system, thereby generating the effect of general anesthesia. An anesthesia machine belongs to a semi-open type anesthesia device. It is mainly composed of anesthesia evaporation tank, flowmeter, folding bellows respirator, respiration loop (containing inhalation and exhalation one-way valve and manual air bag), corrugated pipeline and other parts.

Because the anesthesia machine mainly provides the health anesthesia through oxygen and nitrous oxide mist, after the anesthesia is ended, because still have partly remaining gas in the pipe of anesthesia machine, owing to do not have gas purification device and recovery unit, remaining gas can directly discharge to the air in, can cause the pollution to the surrounding environment.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an anesthetic gas recovery device for an anesthesia machine, which solves the problem that after anesthesia is finished, a part of residual gas still exists in a conduit of the anesthesia machine, and the residual gas can be directly discharged into the air to pollute the surrounding environment.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an anesthetic gas recovery device for an anesthesia machine comprises a first collecting device and a second collecting device, wherein the first collecting device is positioned inside an equipment box, the second collecting device is positioned outside the equipment box, the first collecting device comprises a first equipment box, a first gas tank, a second gas tank, a separation box and a distillation box, a first air pump and a purification box are arranged in the first equipment box, one end of the first air pump is communicated with the purification box, the other end of the first air pump is communicated with the separation box through a U-shaped pipe, the purification box is communicated with a gas conduit of the anesthesia machine in a sealing manner through a hose, one end of the separation box is communicated with the distillation box in a sealing manner through a communicating pipe, the other end of the separation box is communicated with the first gas tank and the second gas tank in a sealing manner through a gas pipe, a first water filling port and a second water filling port are arranged on the separation box, a spray head and a second heater are arranged in the separation box, a first heater is arranged on the distillation box, the second collecting device comprises a second equipment box, a gas collecting tank, a gas liquid tank, cryogenic rectification equipment and a separation tank, wherein a second gas pump is arranged in the second equipment box, one end of the second gas pump is communicated with the distillation box in a sealing mode, the other end of the second gas pump is communicated with the gas collecting tank in a sealing mode, a condenser is arranged inside the gas collecting tank, the gas collecting tank is communicated with the gas liquid tank in a sealing mode through a hydraulic pipe, the gas liquid tank is communicated with the cryogenic rectification equipment in a sealing mode through a hydraulic pipe, and the cryogenic rectification equipment is communicated with the separation tank in a sealing mode through a hydraulic pipe.

Preferably, the gas control valve is arranged on a gas pipe connecting the separation box with the first gas tank and the second gas tank, and the liquid control valve is arranged on a communicating pipe connecting the separation box with the distillation box and a communicating pipe connecting the distillation box with the second equipment box.

Preferably, the sprayer is a supercharged diffusion type sprayer, the sprayer is communicated with the first water filling port in a sealing mode, and the first water filling port is communicated with the water tank in a sealing mode.

Preferably, an activated carbon net is arranged in the purifying box, and ultraviolet sterilizing lamps are respectively arranged at the top end and the bottom end of the purifying box.

Preferably, a sealing connecting seat is arranged on a hydraulic pipe connected with the separation tank of the cryogenic rectification equipment, and a rubber sealing sheet is arranged on the sealing connecting seat and fixed with the separation tank through screws.

(III) advantageous effects

The invention provides an anesthetic gas recovery device for an anesthesia machine. The method has the following beneficial effects:

the gas recovery device can effectively achieve the purpose of classifying and collecting the residual gas of anesthetic through the matching of the first collection device and the second collection device, the first collection device mainly realizes the separation according to the object characteristics of oxygen and nitrous oxide, oxygen is not easy to dissolve in water and can be directly collected, nitrous oxide is easy to dissolve in water, when the nitrous oxide in water is too much, crystallization is easy to generate, through heating the crystallization, the nitrous oxide gas can be obtained and collected through a gas tank, the second collection device mainly separates water and nitrous oxide, mixed gas is obtained through evaporation, then the melting points of hydrogen, oxygen and nitrous oxide in the mixed gas are different, the separation of gas is realized by adopting a liquefaction separation mode, the purpose of separating and collecting is achieved, through the design of the gas recovery device, on the one hand, the classification and recovery of the gas are realized, the purification can be used for the second time, so that the resource recycling is realized, and the problem of environmental pollution caused by direct discharge of residual gas is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the plate body according to the present invention;

FIG. 2 is a schematic view of a first equipment cabinet according to the present invention;

FIG. 3 is a schematic view of the structure of the distillation box of the present invention.

In the figure, an equipment box-1, a first equipment box-2, a first gas tank-3, a second gas tank-4, a separation box-5, a distillation box-6, a first heater-7, a pressure gauge-8, a gas gauge-9, a second equipment box-10, a gas collection tank-11, a gas-liquid tank-12, a low-temperature rectification device-13, a separation tank-14, a condenser-15, a hose-16, a U-shaped pipe-17, a first gas pump-18, a purification box-19, a first water injection port-20, a second water injection port-21, a spray head-22 and a second heater-23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: an anesthetic gas recovery device for an anesthesia machine comprises a first collecting device and a second collecting device, wherein the first collecting device is positioned inside an equipment box 1, the second collecting device is positioned outside the equipment box 2, the first collecting device comprises a first equipment box 2, a first gas tank 3, a second gas tank 4, a separation box 5 and a distillation box 6, a first air pump 18 and a purification box 19 are arranged in the first equipment box 2, one end of the first air pump 18 is communicated with the purification box 19, the other end of the first air pump is communicated with the separation box 5 through a U-shaped pipe 17, the purification box 19 is communicated with a gas conduit of the anesthesia machine through a hose 16 in a sealing manner, one end of the separation box 5 is communicated with the distillation box 6 in a sealing manner through a communicating pipe, the other end of the separation box is respectively communicated with the first gas tank 3 and the second gas tank 4 through a gas pipe in a sealing manner, a first water filling port 20 and a second water filling port 21 are arranged on the separation box 5, a spray head 22 and a second heater 23 are arranged inside the separation box 5, the distillation box 6 is provided with a first heater 7, the second collecting device comprises a second equipment box 10, a gas collecting tank 11, a gas-liquid tank 12, a cryogenic rectification device 13 and a separation tank 14, a second air pump is arranged in the second equipment box 10, one end of the second air pump is in sealed communication with the distillation box 6, the other end of the second air pump is in sealed communication with the gas collecting tank 11, a condenser 15 is arranged inside the gas collecting tank 11, the gas collecting tank 11 is in sealed communication with the gas-liquid tank 12 through a hydraulic pipe, the gas-liquid tank 12 is in sealed communication with the cryogenic rectification device 13 through a hydraulic pipe, and the cryogenic rectification device 13 is in sealed communication with the separation tank 14 through a hydraulic pipe.

The gas control valve is arranged on a gas pipe connecting the separation box 5 with the first gas tank 3 and the second gas tank 4, and liquid control valves are arranged on a communicating pipe connecting the separation box 5 with the distillation box 6 and a communicating pipe connecting the distillation box 6 with the second equipment box 10. The control valve realizes the control of the circulation of gas and liquid.

The spray head 22 is a booster-type diffusion spray head, the spray head 22 is communicated with the first water injection port 20 in a sealing mode, and the first water injection port 20 is communicated with the water tank in a sealing mode. The shower nozzle can realize carrying out inside clearance to the separator box.

An activated carbon net is arranged in the purification box 19, and ultraviolet sterilizing lamps are respectively arranged at the top end and the bottom end of the purification box 19. The active carbon net can adsorb impurity particles in some mixed gas, and the ultraviolet sterilizing lamp can eliminate microbes in the mixed gas.

And a sealing connecting seat is arranged on a hydraulic pipe connected with the low-temperature rectification equipment 13 and the separation tank 14, and a rubber sealing sheet is arranged on the sealing connecting seat and is fixed with the separation tank 14 through screws. The sealing connecting seat is fixedly connected through screws, and independent disassembly and assembly of the separating tank can be realized.

The working principle is as follows: firstly, water is injected into the separation box 5 through a second water injection port 21, the water injection amount can be controlled according to a pressure gauge 8, a hose 16 is connected with a conduit of an anesthesia machine, after the anesthesia of the anesthesia machine is finished, residual gas in the conduit can be extracted through a first air pump 18 in a first equipment box 2, the gas can be purified through an activated carbon net and an ultraviolet sterilizing lamp when passing through a purification box 19, the purified gas is transmitted into the separation box 5 through a U-shaped pipe 17, the oxygen can be collected by opening a gas valve of a first gas tank 3 because the oxygen is insoluble in water, when the first gas tank 3 is full, the gas valve is closed because the nitrous oxide is dissolved in the water, when the nitrous oxide is excessive, crystallization is easy to generate, at the moment, a valve of a connecting pipe on the distillation box 6 is opened, the solution can be drained into the distillation box 6, and by starting a first heater 7, heating the solution to generate a mixed gas, starting a second gas pump in a second equipment box 10, wherein the second gas pump can transmit the residual gas in the separation box 5 and the gas in the distillation box 6 into a gas collection tank 11 together, closing a valve between the distillation box 6 and the separation box 5, opening a gas valve on a second gas tank 4 at the moment, starting a second heater 23, evaporating the nitrous oxide crystal by the second heater 23, directly transmitting the vaporized nitrous oxide gas into the second gas tank 4 to collect the nitrous oxide, liquefying the mixed gas in the gas collection tank 11 by a condenser 15, performing liquid separation according to the principles of different melting points of oxygen, hydrogen and nitrous oxide, sequentially transmitting the liquefied gas into a gas-liquid tank 12, finally filtering by a cryogenic rectification device 13, and respectively connecting the three separation tanks 14 with the cryogenic rectification device 13, to achieve sorted collection.

The invention relates to an equipment box 1, a first equipment box 2, a first gas tank 3, a second gas tank 4, a separation box 5, a distillation box 6, a first heater 7, a pressure gauge 8, a gas meter 9, a second equipment box 10, a gas collecting tank 11, a gas-liquid tank 12, a low-temperature rectification device 13, a separation tank 14, a condenser 15, a hose 16, a U-shaped pipe 17, a first gas pump 18, a purification box 19, a first water injection port 20, a second water injection port 21, a spray head 22 and a second heater 23, which are all universal standard parts or parts known by technicians in the field, and the structure and principle of the parts are all known by the technicians through technical manuals or conventional experimental methods, and the invention solves the problems that after anesthesia is finished, a part of residual gas still exists in a conduit of an anesthesia machine, and the residual gas can be directly discharged into the air and can pollute the surrounding environment, the gas recovery device can effectively achieve the purpose of classifying and collecting the residual gas of the anesthetic through the matching of the first collection device and the second collection device, the first collection device realizes the separation mainly according to the object characteristics of oxygen and nitrous oxide, the oxygen is not easy to dissolve in water and can be directly collected, the nitrous oxide is easy to dissolve in water, when the nitrous oxide in the water is too much, the nitrous oxide is easy to generate crystal, the nitrous oxide gas can be obtained through the collection of the gas tank by heating the crystal, the second collection device mainly separates the water and the nitrous oxide, the mixed gas is obtained through evaporation, the separation of the gas is realized through different melting points of the hydrogen, the oxygen and the nitrous oxide in the mixed gas, the purpose of the separation and the collection is achieved by adopting a liquefaction separation mode, on one hand, the classification and the recovery of the gas are realized through the design of the gas recovery device, the purification can be used for the second time, so that the resource recycling is realized, and the problem of environmental pollution caused by direct discharge of residual gas is avoided.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an anesthetic gas recovery unit for anesthesia machine which characterized in that: the device comprises a first collecting device and a second collecting device, wherein the first collecting device is positioned inside an equipment box (1), the second collecting device is positioned outside the equipment box (1), the first collecting device comprises a first equipment box (2), a first gas tank (3), a second gas tank (4), a separation box (5) and a distillation box (6), a first gas pump (18) and a purification box (19) are arranged in the first equipment box (2), one end of the first gas pump (18) is communicated with the purification box (19), the other end of the first gas pump is communicated with the separation box (5) through a U-shaped pipe (17), the purification box (19) is communicated with a gas conduit of an anesthesia machine in a sealing manner through a hose (16), one end of the separation box (5) is communicated with the distillation box (6) in a sealing manner through a communicating pipe, the other end of the separation box is communicated with the first gas tank (3) and the second gas tank (4) in a sealing manner through a gas pipe respectively, the device is characterized in that a first water filling port (20) and a second water filling port (21) are arranged on the separation box (5), a spray head (22) and a second heater (23) are arranged inside the separation box (5), a first heater (7) is arranged on the distillation box (6), the second collecting device comprises a second equipment box (10), a gas collecting tank (11), a gas-liquid tank (12), low-temperature rectification equipment (13) and a separation tank (14), a second air pump is arranged in the second equipment box (10), one end of the second air pump is hermetically communicated with the distillation box (6), the other end of the second air pump is hermetically communicated with the gas collecting tank (11), a condenser (15) is arranged inside the gas collecting tank (11), the gas collecting tank (11) is hermetically communicated with the gas-liquid tank (12) through a hydraulic pipe, the gas-liquid tank (12) is hermetically communicated with the low-temperature rectification equipment (13) through a hydraulic pipe, the cryogenic rectification equipment (13) is in sealed communication with the separation tank (14) through a hydraulic pipe.

2. The anesthetic gas recovery device for an anesthetic machine according to claim 1, characterized in that: the gas control valve is arranged on a gas pipe connected with the separation box (5) and the first gas tank (3) and the second gas tank (4), and a liquid control valve is arranged on a communicating pipe connected with the separation box (5) and the distillation box (6) and a communicating pipe connected with the distillation box (6) and the second equipment box (10).

3. The anesthetic gas recovery device for an anesthetic machine according to claim 1, characterized in that: the spray head (22) is a supercharged diffusion type spray head, the spray head (22) is communicated with the first water injection port (20) in a sealing mode, and the first water injection port (20) is communicated with the water tank in a sealing mode.

4. The anesthetic gas recovery device for an anesthetic machine according to claim 1, characterized in that: an activated carbon net is arranged in the purification box (19), and ultraviolet sterilizing lamps are respectively arranged at the top end and the bottom end of the purification box (19).

5. The anesthetic gas recovery device for an anesthetic machine according to claim 1, characterized in that: the low-temperature rectification equipment is characterized in that a sealing connecting seat is arranged on a hydraulic pipe connected with the separation tank (14) of the low-temperature rectification equipment (13), and a rubber sealing sheet is arranged on the sealing connecting seat and fixed with the separation tank (14) through screws.