CN214965932U

CN214965932U - Breath carbon dioxide gas collector

Info

Publication number: CN214965932U
Application number: CN202120702659.7U
Authority: CN
Inventors: 陈庸超; 姜超; 王浩
Original assignee: Hangzhou Yuanxiang Medical Device Co ltd
Current assignee: Hangzhou Yuanxiang Medical Device Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-03
Anticipated expiration: 2031-04-07

Abstract

The utility model provides a breathe carbon dioxide gas collector, including the optical measurement room, optical measurement room gas output end and input are connected with intake pipe and outlet duct respectively, be equipped with gaseous drying device in the intake pipe, gaseous drying device includes the installation pipeline of being connected with the intake pipe integral type, establish to the tube cap installation pipeline one end, the inside installation ring frid that is equipped with of installation pipeline, installation ring frid one end is established to tightly laminating with the tube cap inner wall in opening form and opening one side, the inside gomphosis of installation ring frid has the Nafion dry film of translucent form, installation pipeline overcoat is equipped with the connecting ring board, connecting ring board one side is connected with the seal ring board, the seal ring board is located outside tube cap and the installation pipeline junction. The utility model discloses combine gas drying device and carbon dioxide collector together, under the prerequisite that satisfies drying effect, got rid of external gas drying device, reduce the condition of gas leakage, increase the durability and the convenience of whole device.

Description

Breath carbon dioxide gas collector

Technical Field

The utility model mainly relates to a technical field of gas collection station, concretely relates to breathe carbon dioxide gas collection station.

Background

The existing respiratory gas carbon dioxide collector emits infrared light with the wavelength of 4.3 mu m through an optical measuring chamber, carbon dioxide gas passing through the collector can absorb the infrared light with the wavelength, the infrared light can be attenuated, the attenuated infrared light is in direct proportion to the concentration of carbon dioxide, and the corresponding concentration of carbon dioxide can be calculated according to the Lambert beer law. The respiratory gas is required to pass through a solid and liquid filtering device before entering the collector, then passes through a gas drying device and finally enters the gas collector to measure the carbon dioxide in the respiratory gas.

The existing gas drying device adopts a solid chemical substance water molecule absorbing device or a hydrophilic polymer drying tube to dry respiratory gas, and the two gas drying devices are connected at the front end of a pipeline of a carbon dioxide gas collecting device to achieve the effect of drying the respiratory gas at the front end. The solid drying device is bulky, inconvenient to connect, and requires periodic replacement of the drying agent in the device. Although the hydrophilic polymer drying tube has good water absorption effect, the length of the drying tube is usually long enough to fully achieve the water absorption effect, and the drying tube is fragile and cannot be bent in the using process, and once bent, the drying tube loses the effect. No matter be solid drying device or hydrophilic gas drying tube all are independent work units, use luer to connect with gas acquisition device, take place gas leakage easily at the kneck, influence final carbon dioxide gas measuring result.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a breathe carbon dioxide gas collector for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a breathe carbon dioxide gas collector, includes the optical measurement room, optical measurement room gas output end and input are connected with intake pipe and outlet duct respectively, be equipped with gaseous drying device in the intake pipe, gaseous drying device includes the installation pipeline of being connected with the intake pipe integral type, installation pipeline one end is established to the tube cap, the inside installation ring frid that is equipped with of installation pipeline, installation ring frid one end is established to opening form and opening one side and is tightly laminated with the tube cap inner wall, the inside gomphosis of installation ring frid has the Nafion dry film of translucent form, the installation pipeline overcoat is equipped with the connecting ring board, connecting ring board one side is connected with sealed ring board, sealed ring board is located outside tube cap and the installation pipeline junction.

Preferably, one end of the air inlet pipe, which is far away from the optical measuring chamber, is connected with a solid-liquid filtering device.

Preferably, the inner wall of the pipe cover is attached with a compression sealing gasket.

Preferably, the mounting pipe is connected with the pipe cover through threads.

Preferably, the inside mounting groove that is equipped with of seal ring board, inside two semicircle boards that are equipped with bilateral symmetry, every all be connected with a plurality of evenly distributed's extrusion spring between semicircle board outer wall and the mounting groove inner wall.

Preferably, the center of the outer wall of each semicircular arc plate is connected with a transmission rod, and each transmission rod penetrates through the mounting groove.

Preferably, every transfer line all overlaps outward and is equipped with the protection box, protection box and sealing ring board outer wall connection, protection box keeps away from sealing ring board one side and is the articulated lid, the lid passes through hasp and protection box locking.

Compared with the prior art, the utility model has the advantages that the gas drying device is combined with the carbon dioxide collector, the external gas drying device is removed on the premise of meeting the drying effect, the gas leakage condition is reduced, the durability and the convenience of the whole device are improved, the hydrophilic drying tube which is expensive in manufacturing cost and easy to damage is removed, and the durability of the device in the actual use process is prolonged; the Nafion drying membrane is adopted and installed in an embedded mode, so that a gas loop in actual collection is shortened, pipeline interfaces are reduced, and the gas tightness in the measurement process is better guaranteed; the Nafion dry membrane absorbs water effectually, and the dewatering function can go on in succession to sustainable self regeneration need not frequent change, still has very strong corrosion resistance, and is not fragile, and the process is got rid of in the infiltration of Nafion dry membrane moisture accomplishes in very fast microsecond time, has improved equipment acquisition and measurement's work efficiency.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the ring groove plate of the present invention;

FIG. 3 is a partial perspective view of the gas drying device of the present invention;

FIG. 4 is a schematic side view of the tube cover of the present invention;

fig. 5 is a schematic diagram of the side view internal structure of the sealing ring plate of the present invention.

In the figure: 1. an optical measurement chamber; 11. an air inlet pipe; 12. an air outlet pipe; 2. a gas drying device; 21. installing a pipeline; 22. installing a ring groove plate; 23. a tube cover; 24. pressing the gasket; 3. drying the membrane by Nafion; 4. A seal ring plate; 41. a connecting ring plate; 42. mounting grooves; 43. a semicircular arc plate; 44. a compression spring; 45. a transmission rod; 46. a protective case; 47. a box cover; 5. solid-liquid filtering device.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-3, the present invention provides a technical solution: the utility model provides a breathe carbon dioxide gas collector, includes optical measurement room 1, 1 gaseous output end of optical measurement room and input are connected with intake pipe 11 and outlet duct 12 respectively, be equipped with gaseous drying device 2 in the intake pipe 11, gaseous drying device 2 includes the installation pipeline 21 of being connected with 11 integral types of intake pipe, installation pipeline 21 one end is established to pipe cap 23, combines gaseous drying device 2 and optical measurement room 1 together, under the prerequisite that satisfies dry effect, has got rid of external gaseous drying device 2, reduces the condition of gas leakage, increases integrated device's durability and convenience. The end, far away from the optical measurement chamber 1, of the air inlet pipe 11 is connected with a solid-liquid filtering device 5, the solid-liquid filtering device 5 filters solid and liquid, and the device is a mature structure in the prior art and is not described in detail in the prior art.

Please refer to fig. 1-3, wherein an installation ring groove plate 22 is arranged inside the installation pipeline 21, one end of the installation ring groove plate 22 is open and one side of the opening is tightly attached to the inner wall of the pipe cover 23, a semi-transparent Nafion drying membrane 3 is embedded inside the installation ring groove plate 22, and the Nafion drying membrane 3 is installed in an embedded manner through the installation ring groove plate 22, so that a gas loop in actual collection is shortened, a pipeline interface is reduced, air tightness in the measurement process is better guaranteed, the Nafion drying membrane 3 has a good water absorption effect, a water removal function can be continuously performed, the Nafion drying membrane 3 can be continuously and automatically regenerated, frequent replacement is not needed, the Nafion drying membrane has strong corrosion resistance and is not easy to damage, a water permeation removal process of the Nafion drying membrane 3 is completed within a very fast microsecond time, and the work efficiency of equipment collection and measurement is improved.

Please refer to fig. 1-5, the mounting pipeline 21 is sleeved with a connecting ring plate 41, one side of the connecting ring plate 41 is connected with a sealing ring plate 4, the sealing ring plate 4 is located outside the joint of the pipe cover 23 and the mounting pipeline 21, the connecting ring plate 41 fixes the sealing ring plate 4, the sealing ring plate 4 can seal the gap between the pipe cover 23 and the mounting pipeline 21, so as to increase the sealing performance, and the Nafion dry membrane 3 can be replaced by removing the pipe cover 23.

Please refer to fig. 1-5, the inner wall of the pipe cover 23 is adhered with a compression seal gasket 24, the sealing performance can be further increased by compressing the compression seal gasket 24, the installation pipe 21 and the pipe cover 23 are connected by a screw thread, so as to facilitate the detachment and installation of the pipe cover 23, the inside of the seal ring plate 4 is provided with an installation groove 42, the inside is provided with two semicircular plates 43 which are bilaterally symmetrical, a plurality of uniformly distributed compression springs 44 are connected between the outer wall of each semicircular plate 43 and the inner wall of the installation groove 42, the semicircular plates 43 are tightly pressed by the compression springs 44, so that the two semicircular plates 43 block the gap at the connection part of the pipe cover 23 and the installation pipe 21, thereby realizing the sealing, the center of the outer wall of each semicircular plate 43 is connected with a transmission rod 45, each transmission rod 45 passes through the installation groove 42, by moving the transmission rod 45, drive semicircular arc board 43 and remove to the convenience is taken off tube cap 23, and every transfer line 45 all overlaps outward and is equipped with protection box 46,

protection box

46 and 4 outer wall connections of seal ring board, protection box 46 is kept away from seal ring board 4 one side and is articulated lid 47, lid 47 passes through hasp and protection box 46 locking, and protection box 46 can protect transfer line 45 not receive external disturbance when not using, avoids external factors to lead to transfer line 45 to remove, thereby influences the leakproofness. When changing the dry membrane 3 of Nafion, untie the hasp, open lid 47, outwards stimulate two transfer lines 45, a plurality of extrusion spring 44 shrink, take off tube cap 23, change the dry membrane 3 of Nafion, after changing, cover tube cap 23, loosen transfer line 45, a plurality of extrusion spring 44 reset, promote semicircular arc board 43 for two semicircular arc boards 43 block the gap of tube cap 23 and installation pipeline 21 junction, cover lid 47 and pin.

The utility model discloses a concrete operation as follows:

the testee gathers expired gas, and gas passes through solid-liquid filter equipment 5 at first and filters all respiratory incretion and liquid water, then directly gets into gas drying device 2, dries except through Nafion dry film 3, enters optical measurement room 1 at last and carries out the measurement of carbon dioxide.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. A respiratory carbon dioxide gas collector comprises an optical measuring chamber (1), and is characterized in that: the gas output end and the gas input end of the optical measuring chamber (1) are respectively connected with a gas inlet pipe (11) and a gas outlet pipe (12), the air inlet pipe (11) is provided with an air drying device (2), the air drying device (2) comprises an installation pipeline (21) integrally connected with the air inlet pipe (11), one end of the installation pipeline (21) is provided with a pipe cover (23), an installation ring groove plate (22) is arranged in the installation pipeline (21), one end of the mounting ring groove plate (22) is arranged to be open, one side of the opening is tightly attached to the inner wall of the pipe cover (23), a semi-transparent Nafion dry film (3) is embedded in the mounting ring groove plate (22), a connecting ring plate (41) is sleeved outside the mounting pipeline (21), one side of the connecting ring plate (41) is connected with a sealing ring plate (4), the sealing ring plate (4) is positioned outside the joint of the pipe cover (23) and the installation pipeline (21).

2. A respiratory carbon dioxide gas harvester according to claim 1, characterized in that: and one end of the air inlet pipe (11), which is far away from the optical measuring chamber (1), is connected with a solid-liquid filtering device (5).

3. A respiratory carbon dioxide gas harvester according to claim 1, characterized in that: and a squeezing sealing gasket (24) is attached to the inner wall of the pipe cover (23).

4. A respiratory carbon dioxide gas harvester according to claim 1, characterized in that: the mounting pipeline (21) is connected with the pipe cover (23) through threads.

5. A respiratory carbon dioxide gas harvester according to claim 1, characterized in that: sealing ring board (4) inside is equipped with mounting groove (42), inside is equipped with two semicircular arc boards (43) of bilateral symmetry, every all be connected with a plurality of evenly distributed's extrusion spring (44) between semicircular arc board (43) outer wall and mounting groove (42) inner wall.

6. A respiratory carbon dioxide gas harvester according to claim 5, characterized in that: each semicircle board (43) outer wall center all is connected with transfer line (45), every transfer line (45) all pass mounting groove (42).

7. A respiratory carbon dioxide gas harvester according to claim 6, characterized in that: every transfer line (45) all overlaps outward and is equipped with protection box (46), protection box (46) and sealing ring board (4) outer wall connection, protection box (46) are kept away from sealing ring board (4) one side and are articulated lid (47), lid (47) are locked through hasp and protection box (46).