CN211952258U - A medical gas decompression system - Google Patents

Abstract

The utility model discloses a medical gas decompression system, which comprises a main cut-off valve, a secondary decompression box, an auxiliary decompression unit and an oxygen flow monitor. The main cut-off valve, the secondary decompression box and the oxygen flow monitor are connected in sequence. . A first shut-off valve is connected in series with the inlet end of the secondary pressure reducing box, a second shut-off valve is connected in series at the output end of the secondary pressure reducing box, and two pressure reducing units are connected in parallel in the secondary pressure reducing box. The third shut-off valve, the first pressure reducing valve, the first throttle valve and the fourth shut-off valve. The auxiliary decompression unit is connected in parallel with the secondary decompression tank, the first shut-off valve and the second shut-off valve, and the auxiliary decompression unit includes a fifth shut-off valve, a second pressure-reducing valve, a second throttle valve and a sixth shut-off valve connected in sequence valve. In the above-mentioned medical gas decompression system, when the secondary decompression box is damaged, the auxiliary decompression unit can be used to decompress, without the need for overall air-cut maintenance, and will not affect the daily use of oxygen supply.

Description

A medical gas decompression system

technical field

The utility model relates to the technical field of gas decompression, in particular to a medical gas decompression system.

Background technique

With the improvement of modern medical level and the rapid development of the medical industry, the rapid development of ward equipment has been driven. Oxygen plays an important role in the medical industry, so the medical center is equipped with an oxygen supply system to meet the oxygen demand.

The oxygen output by the oxygen supply system is a high-pressure gas, which needs to be decompressed and then mixed with air to supply the patient. At present, the high-pressure gas is generally decompressed through a secondary decompression box, but because the pressure-reducing valve in the decompression box is subjected to the impact of high-pressure gas for a long time, the pressure-reducing valve is easily damaged. When the decompression box needs to be repaired, it needs to be repaired as a whole, which affects the use of daily oxygen supply.

Utility model content

Based on this, it is necessary to provide a medical gas decompression system in view of the problem that the maintenance of the traditional decompression system requires an overall gas cut-off maintenance.

A medical gas decompression system, comprising a master shut-off valve, a secondary decompression box, an auxiliary decompression unit and an oxygen flow monitor;

The total shut-off valve, the secondary decompression box and the oxygen flow monitor are connected in sequence, the inlet end of the secondary decompression box is connected with a first shut-off valve in series, and the output end of the secondary decompression box is connected in series. A second shut-off valve is connected in series;

Two decompression units are connected in parallel in the two-stage decompression tank, and the decompression units include a third shut-off valve, a first relief valve, a first throttle valve and a fourth shut-off valve connected in sequence;

The auxiliary decompression unit is connected in parallel with the secondary decompression tank, the first shut-off valve and the second shut-off valve, and the auxiliary decompression unit includes a fifth shut-off valve and a second pressure relief valve connected in sequence , the second throttle valve and the sixth globe valve.

In one of the embodiments, a first pressure gauge is installed at one end of the total shut-off valve close to the first shut-off valve, and gas flows into the first shut-off valve or the fifth shut-off valve after passing through the first pressure gauge. in the shut-off valve.

In one of the embodiments, the decompression unit further includes a second pressure gauge installed at an end of the fourth shut-off valve away from the first throttle valve.

In one of the embodiments, the auxiliary pressure reducing unit further includes a third pressure gauge, and the third pressure gauge is installed at an end of the sixth shut-off valve away from the second throttle valve.

In one embodiment, a seventh shut-off valve and an eighth shut-off valve are respectively connected in series at both ends of the oxygen flow monitor, and the seventh shut-off valve is located between the oxygen flow monitor and the second shut-off valve. between.

In one embodiment, a bypass stop valve is connected in parallel with the oxygen flow monitor, one end of the bypass stop valve is connected to the inlet of the seventh stop valve, and the other end of the bypass stop valve is connected to the inlet of the seventh stop valve. The outlet of the eighth stop valve is connected.

In one of the embodiments, it also includes a filter, the filter is installed at one end of the total shut-off valve close to the first shut-off valve, and the gas flows through the filter into the first shut-off valve or the first shut-off valve. in the fifth shut-off valve.

In one of the embodiments, a safety valve is further included, and the safety valve is installed at one end of the oxygen flow monitor away from the second shut-off valve.

In the above-mentioned medical gas decompression system, when the first decompression valves of the two decompression units in the secondary decompression box are damaged, the auxiliary decompression unit can be connected in series to the pipe by closing the first cut-off valve and the second cut-off valve. In the middle of the road, the second pressure reducing valve can temporarily reduce the pressure of the high-pressure gas. When the secondary pressure reducing box is repaired, there is no need to cut off the whole gas for maintenance, and it will not affect the daily use of oxygen supply.

Description of drawings

FIG. 1 is a schematic structural diagram of a gas decompression system for traditional Chinese medicine according to an embodiment.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

Referring to FIG. 1 , a medical gas decompression system in an embodiment is used to decompress high-pressure gas, such as high-pressure oxygen. Specifically, the medical gas decompression system includes a total shut-off valve 100 , a secondary decompression tank 200 , an auxiliary decompression unit 300 and an oxygen flow monitor 400 .

The total cut-off valve 100, the secondary decompression tank 200 and the oxygen flow monitor 400 are connected in sequence. Among them, the high-pressure gas enters the secondary decompression box 200 from P1 through the total shut-off valve 100, and the secondary decompression box 200 can decompress the high-pressure gas, and then the other decompressed gas enters the oxygen flow monitor 400, The oxygen flow monitor 400 monitors the flow rate of oxygen, and finally the gas is discharged from the P2 outlet.

The input end 202 of the secondary decompression tank 200 is connected in series with the first shut-off valve 110 , and the output end 204 of the secondary decompression box 200 is connected in series with the second shut-off valve 120 . The first shut-off valve 110 is used to control the gas entering into the secondary decompression box 200 , and the second shut-off valve 120 is used to control the gas to flow out from the secondary decompression box 200 . Two decompression units 210 are connected in parallel in the secondary decompression box 200 , one decompression unit 210 can be arbitrarily selected to decompress the gas, and the two decompression units 210 can increase the working stability of the secondary decompression box 200 .

In one embodiment, a first pressure gauge 130 is installed at one end of the total shut-off valve 100 close to the first shut-off valve 110 . The first pressure gauge 130 is used to monitor the pressure of the high-pressure gas entering from the P1 inlet, and the gas passes through the first pressure gauge 130 It flows out into the first shut-off valve 110 or the auxiliary decompression unit 300 . In one embodiment, the medical gas decompression system further includes a filter 140 , and the filter 140 is installed at one end of the main shut-off valve 100 close to the first shut-off valve 110 . Specifically, the filter 140 is installed between the first pressure gauge 130 and the total shut-off valve 100 . The filter 140 can filter the high-pressure gas to prevent impurities in the high-pressure gas from contaminating subsequent valves.

The pressure reducing unit 210 includes a third stop valve 211 , a first pressure reducing valve 212 , a first throttle valve 213 and a fourth stop valve 214 , the third stop valve 211 , the first pressure reducing valve 212 and the first throttle valve 213 and the fourth shut-off valve 214 are connected in sequence. The high-pressure gas enters the first pressure reducing valve 212 through the third cut-off valve 211, and the high-pressure gas enters the first throttle valve 213 after pressure reduction through the first pressure reducing valve 212, and the first throttle valve 213 adjusts the gas flow. After the flow rate, finally the gas flows out from the output end 204 of the secondary decompression tank 200 through the fourth shut-off valve 214 . In one embodiment, the decompression unit 210 further includes a second pressure gauge 215. The second pressure gauge 215 is installed at one end of the fourth shut-off valve 214 away from the first throttle valve 213. The second pressure gauge 215 is used to monitor the decompression. gas pressure.

The auxiliary decompression unit 300 is used as a backup decompression structure, and the auxiliary decompression unit 300 is connected in parallel with the first shut-off valve 110 , the secondary decompression tank 200 and the second shut-off valve 120 . Specifically, the auxiliary pressure reducing unit 300 includes a fifth cutoff valve 310, a second pressure reducing valve 320, a second throttle valve 330, and a sixth cutoff valve 340. The fifth cutoff valve 310, the second pressure reducing valve 320, the second The throttle valve 330 and the sixth shut-off valve 340 are sequentially connected in series. When the two first pressure reducing valves 212 of the secondary pressure reducing tank 200 are both damaged, by closing the first shut-off valve 110 and the second shut-off valve 120 to disconnect the connection of the secondary pressure reducing tank 200, the air entering from the inlet of P1 After the high-pressure gas passes through the main shut-off valve 100, it enters the second pressure reducing valve 320 through the fifth shut-off valve 310. The second pressure-reducing valve 320 decompresses the high-pressure gas, and then the gas enters the second throttle valve 330. After the second throttle valve 330 adjusts the flow of the gas, finally the gas flows into the oxygen flow monitor 400 through the sixth shut-off valve 340, and finally is discharged from the P2 outlet.

In one embodiment, the auxiliary decompression unit 300 further includes a third pressure gauge 350, and the third pressure gauge 350 is installed at an end of the sixth shut-off valve 340 away from the second throttle valve 330, that is, the sixth shut-off valve 340 is located at the third pressure Between the meter 350 and the second throttle valve 330 . The third pressure gauge 350 is used to monitor the pressure of the gas decompressed by the second decompression valve 320 .

In one embodiment, both ends of the oxygen flow monitor 400 are respectively connected in series with a seventh shut-off valve 410 and an eighth shut-off valve 420, and the seventh shut-off valve 410 is located between the oxygen flow monitor 400 and the second shut-off valve 120. The seven shut-off valve 410 is used to control the gas entering into the oxygen flow monitor 400 , and the eighth shut-off valve 420 is used to control the gas discharge from the oxygen flow monitor 400 . The oxygen flow monitor 400 is connected in parallel with a bypass stop valve 500 . When the oxygen flow monitor 400 is damaged, close the seventh shut-off valve 410 and the eighth shut-off valve 420, open the bypass shut-off valve 500, and the gas decompressed by the secondary decompression tank 200 flows into the second shut-off valve 120. Bypass the shut-off valve 500, and then discharge from the P2 outlet.

In one embodiment, the medical gas decompression system further includes a safety valve 600 . The safety valve 600 is installed at one end of the oxygen flow monitor 400 away from the second shut-off valve 120 , and the gas flowing out through the oxygen flow monitor 400 is discharged through the safety valve 600 . . The safety valve 600 can prevent pipeline damage by discharging gas to the outside of the system and ensure pipeline safety when the pipeline pressure is higher than a specified value.

The working principle of the above-mentioned medical gas decompression system is as follows:

The gas enters the main shut-off valve 100 through P1, and after being filtered by the filter 140, the gas enters the secondary decompression tank 200 through the first pressure gauge 130 and the first shut-off valve 110 in sequence. Either one of the two decompression units 210 in the secondary decompression tank 200 works. Specifically: the gas enters the first pressure reducing valve 212 through the third cut-off valve 211 , the gas enters the first throttle valve 213 after pressure reduction through the first pressure reducing valve 212 to adjust the flow, and finally passes through the fourth cut-off valve in sequence. Valve 214 and second pressure gauge 215 flow out from output 204 of secondary pressure relief tank 200 .

The gas flowing out from the output end 204 of the secondary decompression box 200 enters the oxygen flow monitor 400 through the second cut-off valve 120 and the seventh cut-off valve 410. The oxygen flow monitor 400 monitors the flow of the gas, and then the gas passes through the second stop valve 120 and the seventh stop valve 410. Eight shut-off valves 420 and safety valves 600 are discharged from the P2 outlet.

When the decompression unit 210 working in the secondary decompression tank 200 is damaged, another decompression unit 210 may be used. When both the decompression units 210 in the secondary decompression tank 200 are damaged, the first shut-off valve 110 and the second shut-off valve 120 are closed. The gas from the first pressure gauge 130 enters the second pressure reducing valve 320 through the fifth cut-off valve 310, and after the gas is reduced by the second pressure reducing valve 320, the gas enters the second throttle valve 330 to adjust the flow, and finally The gas flows into the oxygen flow monitor 400 through the sixth shut-off valve 340, the third pressure gauge 350 and the seventh shut-off valve 410 in sequence, the oxygen flow monitor 400 monitors the flow of the gas, and then the gas passes through the eighth shut-off valve 420 and the safety Valve 600 discharges from the P2 outlet.

When the oxygen flow monitor 400 is damaged, the seventh cut-off valve 410 and the eighth cut-off valve 420 are closed, the bypass cut-off valve 500 is opened, and the gas decompressed by the secondary decompression tank 200 flows into the second cut-off valve 120 into the bypass shut-off valve 500, and then discharged from the P2 outlet through the safety valve 600.

In the above-mentioned medical gas decompression system, when the first decompression valves 212 of the two decompression units 210 in the secondary decompression box 200 are damaged, the auxiliary decompression unit 300 can temporarily decompress the high-pressure gas, without the need for overall air-cutting maintenance At the same time, when the oxygen flow monitor 400 is damaged, the bypass shut-off valve 500 can also be opened, and there is no need to cut off the gas for maintenance. The medical gas decompression system is easy to use, will not affect the daily use of oxygen supply, and has high stability.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (8)

1. a medical gas decompression system, is characterized in that, comprises total stop valve, secondary decompression box, auxiliary decompression unit and oxygen flow monitor; The total shut-off valve, the secondary decompression box and the oxygen flow monitor are connected in sequence, the inlet end of the secondary decompression box is connected with a first shut-off valve in series, and the output end of the secondary decompression box is connected in series. A second shut-off valve is connected in series; Two decompression units are connected in parallel in the two-stage decompression tank, and the decompression units include a third shut-off valve, a first relief valve, a first throttle valve and a fourth shut-off valve connected in sequence; The auxiliary decompression unit is connected in parallel with the secondary decompression tank, the first shut-off valve and the second shut-off valve, and the auxiliary decompression unit includes a fifth shut-off valve and a second pressure relief valve connected in sequence , the second throttle valve and the sixth globe valve. 2 . The medical gas decompression system according to claim 1 , wherein a first pressure gauge is installed at one end of the total shut-off valve close to the first shut-off valve, and gas flows into the first pressure gauge after passing through the first pressure gauge. 3 . into the first shut-off valve or the fifth shut-off valve. 3 . The medical gas decompression system according to claim 1 , wherein the decompression unit further comprises a second pressure gauge, and the second pressure gauge is installed on the fourth stop valve away from the first pressure gauge. 4 . one end of the throttle valve. 4 . The medical gas decompression system according to claim 1 , wherein the auxiliary decompression unit further comprises a third pressure gauge, and the third pressure gauge is installed on the sixth stop valve away from the first pressure gauge. 5 . One end of the second throttle valve. 5. The medical gas decompression system according to claim 1, wherein the two ends of the oxygen flow monitor are respectively connected in series with a seventh cut-off valve and an eighth cut-off valve, and the seventh cut-off valve is located in the between the oxygen flow monitor and the second shut-off valve. 6 . The medical gas decompression system according to claim 5 , wherein the oxygen flow monitor is connected in parallel with a bypass stop valve, and one end of the bypass stop valve is connected to the inlet of the seventh stop valve. 7 . , the other end of the bypass cut-off valve is connected to the outlet of the eighth cut-off valve. 7 . The medical gas decompression system according to claim 1 , further comprising a filter, the filter is installed at one end of the total shut-off valve close to the first shut-off valve, and the gas is filtered through the filter. 8 . After the device, it flows into the first shut-off valve or the fifth shut-off valve. 8 . The medical gas decompression system according to claim 1 , further comprising a safety valve, wherein the safety valve is installed at an end of the oxygen flow monitor away from the second shut-off valve. 9 .

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