CN105036085A - Two-way closed-loop automatic switching device - Google Patents
Two-way closed-loop automatic switching device Download PDFInfo
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- CN105036085A CN105036085A CN201510474245.2A CN201510474245A CN105036085A CN 105036085 A CN105036085 A CN 105036085A CN 201510474245 A CN201510474245 A CN 201510474245A CN 105036085 A CN105036085 A CN 105036085A
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- oxygen
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- automatic switching
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Abstract
The invention discloses a two-way closed-loop automatic switching device. The device comprises a first oxygen channel, a second oxygen channel, an output and oxygen supply channel, a first auxiliary channel and a second auxiliary channel. An air outlet of the first oxygen channel is connected with a first air inlet of the output and oxygen supply channel, an air outlet of the second oxygen channel is connected with a second air inlet of the output and oxygen supply channel, one end of the first auxiliary channel and one end of the second auxiliary channel are vertically connected with the output and oxygen supply channel, the other end of the first auxiliary channel and the other end of the second auxiliary channel are vertically connected with the first oxygen channel and the second oxygen channel respectively, an air inlet of the first oxygen channel is connected with an oxygen tank of an oxygen generator, and an air inlet of the second oxygen channel is connected with a bus-bar. By means of the two-way closed-loop automatic switching device, oxygen can still be continuously supplied under the situation that an oxygen generator system breaks down or power failure happens.
Description
Technical field
The invention belongs to medical instruments field, particularly relate to a kind of Bidirectional closed-loop automatic switching control equipment.
Background technology
Along with the raising of people's living standard, the requirement of quality of life is also reasonably being improved.To the raising of api request, it is the part that people's quality of life rationally improves.In the modern life, people, while self live and work environment of raising, are easy to form the stopping property anaerobic environment be seen everywhere, as air-conditioned room, closed automobile, gymnasium, bar, singing-hall, office space, classroom etc.For the personnel be engaged in mental work, such as company personnel, student etc., easily especially in above-mentioned stopping property anaerobic environment, there is hypoxic conditions, cause the problems such as inefficiency, learning efficiency are low.Suffer from the patient of respiratory system disease, as asthma, trachitis, bronchitis etc., quantitative oxygen uptake every day, can clean respiratory system environment, relief of symptoms simultaneously.Suffer from the patient of arteriosclerosis, liver, pulmonary dysfunction disease and coronary heart disease, cerebral apoplexy, regular oxygen uptake can reduce frequency of disease development, improves viscera function, and strengthen immunological competence, adhere to for a long time carrying out oxygen therapy, the thorough recovery for disease plays a very important role.By to patient, oxygen supply in medical treatment, can the disease such as partner treatment cardiovascular and cerebrovascular, respiratory system, chronic obstructive pneumonia, and carbon monoxide poisoning and other severe depletion of oxygen illness.Therefore for solving the problem, oxygenerator just arises at the historic moment, and widespread use.
At present, common oxygenerator is two adsorption tower oxygenators, and it take air as raw material, and molecular sieve is sorbent material, adopts PSA pressure-variable adsorption principle oxygen producing.Raw air is first through air compressor machine pressurization, and pressurized air enters by intake valve the adsorption tower that molecular sieve is housed after filtering, cool, removing moisture, and the nitrogen in air is adsorbed, and effluent air is high-purity oxygen.When after the saturation ratio that molecular sieve nitrogen adsorption reaches certain, intake valve cuts out vent valve and opens, and adsorption tower enters parsing regeneration stage, the nitrogen in microporous molecular sieve along with the reduction of pressure resolved out.Meanwhile, another adsorption tower makes the nitrogen of surplus in molecular sieve be separated out further by regeneration blowback oxygen, completes a loop cycle.When oxygen making set system breaks down or have a power failure, oxygenerator cannot normally work, cannot oxygen supply, special in medical emergency situation, if cannot oxygen supply, may life danger be there is in patient, when when oxygen consuming amount is excessive, oxygenerator oxygen-supplying amount is not enough in addition, for these situations, oxygenerator cannot meet the demands, therefore how to solve the problems of the technologies described above, will need to be studied further.
Summary of the invention
Object of the present invention is just to overcome the deficiencies in the prior art, a kind of Bidirectional closed-loop automatic switching control equipment is provided, this Bidirectional closed-loop automatic switching control equipment efficiently solves and to break down at oxygen making set system or to have a power failure or in the situation such as the excessive and oxygenerator oxygen-supplying amount of oxygen consuming amount is not enough, still can continue oxygen supply, thus achieve the present invention's oxygen supply continuously.
To achieve these goals, the invention provides a kind of Bidirectional closed-loop automatic switching control equipment, comprise the first oxygen path, second oxygen path, export oxygen supply path, first auxiliary channel and the second auxiliary channel, the air outlet of described first oxygen path is connected with the first inlet mouth of described output oxygen supply path, the air outlet of described second oxygen path is connected with the first inlet mouth of described output oxygen supply path, described first auxiliary channel and described second auxiliary channel are symmetricly set on the both sides of described output oxygen supply path, and described first auxiliary channel joins with one end of described second auxiliary channel is all vertical with described output oxygen supply path, described first auxiliary channel joins with the other end of described second auxiliary channel is vertical with described second oxygen path with described first oxygen path respectively, the inlet mouth of described first oxygen path is connected with the oxygen canister of oxygenerator, the inlet mouth of described second oxygen path is connected with omnibus bar,
Described first auxiliary channel and the second auxiliary channel are in normally off;
When described first oxygen path leads to oxygen, described second oxygen path is in closing condition, when described second oxygen path leads to oxygen, described first oxygen path is in closing condition, i.e. the opening or close and can automatically switch of the first oxygen path and the second oxygen path, automatic switchover all arranges valve on described first oxygen path and the second oxygen path, by controlling the automatic switchover of opening or having closed the first oxygen path and the second oxygen path of the valve on the first oxygen path and the valve on the second oxygen path, the i.e. automatic switchover of oxygenerator oxygen supply and omnibus bar oxygen supply.
Further, described Bidirectional closed-loop automatic switching control equipment also comprises casing, the inwall of described casing is provided with mounting plate, described mounting plate comprises upper mounting plate and lower installation board, the inlet mouth end of described first oxygen path is fixed on described upper mounting plate by the first U-bolt, and the air outlet end of described first oxygen path is fixed on described lower installation board by the second U-bolt; The inlet mouth end of described second oxygen path is fixed on described upper mounting plate by the first U-bolt, and the air outlet end of described second oxygen path is fixed on described lower installation board by the second U-bolt.
Further, valve on described first oxygen path is the first angle pedestal valve, described first oxygen path also comprises the first inlet pipe, first check valve, first ball valve, one end of described first inlet pipe is connected with the oxygen canister of described oxygenerator, the other end is connected with one end of described first check valve, and the other end is vertical with the other end of described first auxiliary channel joins, the other end of described first check valve is connected with one end of described first angle pedestal valve, the other end of described first angle pedestal valve is connected with one end of described first ball valve, the other end of described first ball valve is connected with the first inlet mouth of described output oxygen supply path.
Further, valve on described second oxygen path is the second angle pedestal valve, described second oxygen path also comprises the second inlet pipe, second check valve, second ball valve, one end of described second inlet pipe is connected with described omnibus bar, the other end is connected with one end of described second check valve, and the other end is vertical with the other end of described second auxiliary channel joins, the other end of described second check valve is connected with one end of described second angle pedestal valve, the other end of described second angle pedestal valve is connected with one end of described second ball valve, the other end of described second ball valve is connected with the second inlet mouth of described output oxygen supply path.
Further, described first auxiliary channel comprises the 3rd ball valve, and described 3rd ball valve is in normally off, and one end of described 3rd ball valve is vertical with described output oxygen supply path to join, and the other end is vertical with the other end of described first inlet pipe to join.
Further, described second auxiliary channel comprises the 4th ball valve, and described 4th ball valve is in normally off, and one end of described 4th ball valve is vertical with described output oxygen supply path to join, and the other end is vertical with the other end of described second inlet pipe to join.
Further, described first inlet pipe, the second inlet pipe, output oxygen supply path are provided with fairlead, and described fairlead is above described first auxiliary channel and the second auxiliary channel.
Further, described Bidirectional closed-loop automatic switching control equipment also comprises pressure switch, magnetic valve and needle type valve, described fairlead is connected with described pressure switch, described pressure switch is connected with described magnetic valve, the air outlet of described magnetic valve is connected with the inlet mouth of the second angle pedestal valve with described first angle pedestal valve respectively, the inlet mouth of described magnetic valve is connected with described needle type valve, and described needle type valve is arranged in described second inlet pipe.
Further, described Bidirectional closed-loop automatic switching control equipment also comprises warning howler, and described pressure switch is connected with described warning howler.
Further, described needle type valve is arranged in described second inlet pipe.
Beneficial effect of the present invention:
1, the present invention has the oxygen source of oxygenerator and omnibus bar two oxygen supplys, and oxygenerator and omnibus bar can realize automatically switching in oxygen supply process, when oxygen making set system break down have a power failure or the excessive and oxygen-supplying amount of oxygen consuming amount is not enough time, directly can automatically switch to omnibus bar oxygen supply from oxygenerator oxygen supply, guarantee oxygen supply continues, thus realize oxygen supply continuously, meet single oxygenerator when there is above-mentioned situation, oxygenerator cannot normally work or the situation of oxygen-supplying amount deficiency.
2, the present invention is provided with ball valve in each path, when the effect of ball valve overcomes and do not use ball valve in prior art and cause system malfunctions to overhaul, each path all must be disassembled and could overhaul, and causes mounting or dismounting trouble.The particularly setting of two auxiliary channels, when solving the maintenance of existing oxygenerator, mounting or dismounting trouble, the problem of the large grade of labor intensive.
3, the present invention is by detecting the force value of oxygenerator oxygen canister, omnibus bar and output oxygen supply path, when realizing pressure lower than rated value or higher than rated value, the automatic switchover of oxygenerator oxygen supply and omnibus bar oxygen supply, simultaneously when the force value of each path is all lower than rated value, will be there is sound and light alarm signal in warning howler, reminding user checks oxygen generating plant in time or changes omnibus bar or oxygen canister.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the left view of the embodiment of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Above-mentioned Reference numeral:
A first oxygen path, B second oxygen path, C1 first auxiliary channel, C2 second auxiliary channel, D exports oxygen supply path
1 casing, 2.1 first inlet pipe, 2.2 first check valves, 2.3 first angle pedestal valves, 2.4 first ball valves, 3.1 second inlet pipe, 3.2 second check valves, 3.3 second angle pedestal valves, 3.4 second ball valves, 4 the 3rd ball valves, 5 the 4th ball valves, 6.1 upper mounting plates, 6.2 lower installation boards, 7 fairleads, 8 needle type valves, 9 first U-bolts, 10 second U-bolts.
Embodiment
Below in conjunction with accompanying drawing, invention is further illustrated, but be not used for limiting the scope of the invention.
Embodiment
It should be noted that, in the present invention when a part " is connected " with another part, the connection between two parts can be the connection directly connecting or may exist part placed in the middle.
As shown in Fig. 1 ~ 2, a kind of Bidirectional closed-loop automatic switching control equipment provided by the invention, comprise the first oxygen path A, second oxygen path B, export oxygen supply path D, first auxiliary channel C1 and the second auxiliary channel C2, the air outlet of described first oxygen path A is connected with first inlet mouth of described output oxygen supply path D, the air outlet of described second oxygen path B is connected with second inlet mouth of described output oxygen supply path D, described first auxiliary channel C1 and described second auxiliary channel C2 is symmetricly set on the both sides of described output oxygen supply path D, and described first auxiliary channel C1 joins with one end of described second auxiliary channel C2 is all vertical with described output oxygen supply path D, described first auxiliary channel C1 joins with the other end of described second auxiliary channel C2 is vertical with described second oxygen path B with described first oxygen path A respectively, the inlet mouth of described first oxygen path A is connected with the oxygen canister of oxygenerator, the inlet mouth of described second oxygen path B is connected with omnibus bar.
Bidirectional closed-loop automatic switching control equipment of the present invention also comprises casing 1, the inwall of described casing 1 is provided with mounting plate, described mounting plate comprises upper mounting plate 6.1 and lower installation board 6.2, the inlet mouth end of described first oxygen path A is fixed on described upper mounting plate 6.1 by the first U-bolt 9, and the air outlet end of described first oxygen path A is fixed on described lower installation board 6.2 by the second U-bolt 10; The inlet mouth end of described second oxygen path B is fixed on described upper mounting plate 6.1 by the first U-bolt 9, and the air outlet end of described second oxygen path B is fixed on described lower installation board 6.2 by the second U-bolt 10.
The present invention is further, valve on described first oxygen path A is the first angle pedestal valve 2.3, described first oxygen path A comprises the first inlet pipe 2.1, first check valve 2.2, first ball valve 2.4, one end of described first inlet pipe 2.1 is connected with the oxygen canister of described oxygenerator, the other end is connected with one end of described first check valve 2.2, and the other end is vertical with the other end of described first auxiliary channel C1 joins, the other end of described first check valve 2.2 is connected with one end of described first angle pedestal valve 2.3, the other end of described first angle pedestal valve 2.3 is connected with one end of described first ball valve 2.4, the other end of described first ball valve 2.4 is connected with first inlet mouth of described output oxygen supply path D.
The present invention is further, valve on described second oxygen path B is the second angle pedestal valve 3.3, described second oxygen path B comprises the second inlet pipe 3.1, second check valve 3.2, second ball valve 3.4, one end of described second inlet pipe 3.1 is connected with described omnibus bar, the other end is connected with one end of described second check valve 3.2, and the other end is vertical with the other end of described second auxiliary channel C2 joins, the other end of described second check valve 3.2 is connected with one end of described second angle pedestal valve 3.3, the other end of described second angle pedestal valve 3.3 is connected with one end of described second ball valve 3.4, the other end of described second ball valve 3.4 is connected with second inlet mouth of described output oxygen supply path D.
The present invention is further, described first auxiliary channel C1 comprises the 3rd ball valve 4, described 3rd ball valve 4 is in normally off, and one end of described 3rd ball valve 4 is vertical with described output oxygen supply path D to join, and the other end is vertical with the other end of described first inlet pipe 2.1 to join.
The present invention is further, described second auxiliary channel C2 comprises the 4th ball valve 5, described 4th ball valve 5 is in normally off, and one end of described 4th ball valve 5 is vertical with described output oxygen supply path D to join, and the other end is vertical with the other end of described second inlet pipe 3.1 to join.
The present invention is further, and described first inlet pipe 2.1, second inlet pipe 3.1, output oxygen supply path D are provided with fairlead 7, and described fairlead 7 is above described first auxiliary channel C1 and the second auxiliary channel C2.
Bidirectional closed-loop automatic switching control equipment of the present invention also comprises pressure switch, magnetic valve and needle type valve 8, described fairlead 7 is connected with described pressure switch, described pressure switch is connected with described magnetic valve, the air outlet of described magnetic valve is connected with the inlet mouth of the second angle pedestal valve 3.3 with described first angle pedestal valve 2.3 respectively, the inlet mouth of described magnetic valve is connected with described needle type valve 8, and described needle type valve 8 is arranged in described second inlet pipe 3.1.And Bidirectional closed-loop automatic switching control equipment of the present invention also comprises warning howler, described pressure switch is connected with described warning howler.
Supplying under oxygen condition, 3rd ball valve 4, the 4th ball valve 5 are in normally off, and the first ball valve 2.4, second ball valve 3.4 is in normally open, and preferably the first ball valve 2.4, second ball valve 3.4, the 3rd ball valve 4 and the 4th ball valve 5 all adopt manual ball valve, economical and practical, easy to adjust.The flow direction of the first check valve 2.2 and the second check valve 3.2 is the direction of arrow in Fig. 1, and the effect of the first check valve 2.2 and the second check valve 3.2 is to prevent gas from flowing toward the direction that arrow in Fig. 1 is contrary.The control gas circuit UNICOM of magnetic valve and the first angle pedestal valve 2.3 and the second angle pedestal valve 3.3, by magnetic valve electric or dead electricity, gas is got by needle type valve 8, utilize the break-make of gas-powered first angle pedestal valve 2.3 and the second angle pedestal valve 3.3, thus realize the automatic switchover of omnibus bar oxygen supply and oxygenerator oxygen supply, the oxygen wherein driving the gas of the first angle pedestal valve 2.3 and the second angle pedestal valve 3.3 break-make to come from needle type valve 8 to obtain from the second oxygen path B.
The guide angle seat valve that first angle pedestal valve 2.3 and the second angle pedestal valve 3.3 all adopt the single-acting pneumatic actuator of band spring safety protection to operate.Pressure switch is a kind of simple pressure control device, and when being reached rated value by measuring pressure, pressure switch can give the alarm or control signal.Pressure switch adopts pressure transmitter and the transmission circuit of high precision, high stable performance, then through dedicated cpu modular signal treatment technology, realizes the detection to pressure medium signal, display, warning and control signal and export.
In normal operation, preferential use oxygenerator oxygen supply.Under the state of oxygenerator oxygen supply, now magnetic valve obtains electric, and the first angle pedestal valve 2.3 is open-minded, and the second angle pedestal valve 3.3 disconnects.In conjunction with data declaration automatic switching procedure of the present invention, utilize the characteristic of pressure switch, when the oxygen depletion in oxygenerator oxygen canister drops to lower than 0.35MPa, pressure switch sends and controls signal to magnetic valve, magnetic valve dead electricity, now the first angle pedestal valve 2.3 disconnects, and the second angle pedestal valve 3.3 is open-minded, automatically switches to omnibus bar oxygen supply; When the pressure increase recording oxygenerator oxygen canister is to 0.4MPa, pressure switch sends and controls signal to magnetic valve, and magnetic valve obtains electric, and now the first angle pedestal valve 2.3 is open-minded, and angle pedestal valve B3.3 disconnects, and returns to by the oxygen supply of oxygenerator oxygen canister.When oxygenerator oxygen canister, omnibus bar being detected, the force value of output oxygen supply path is when being all less than 0.4MPa, pressure switch sends guard signal to warning howler, make warning howler send sound and light alarm signal, reminding user detects oxygen generating plant in time or changes omnibus bar or oxygen canister.
When having a power failure, oxygen making set system cannot normally work, now magnetic valve dead electricity, and the first angle pedestal valve 2.3 disconnects, and the second angle pedestal valve 3.3 is open-minded, automatically switches to omnibus bar oxygen supply.
When oxygen making set system breaks down, or oxygen consuming amount excessive and cause oxygen-supplying amount not enough time, be switched to omnibus bar oxygen supply.
First auxiliary channel C1 and the second auxiliary channel C2, under the state of oxygenerator oxygen supply or omnibus bar oxygen supply, its second ball valve 4 and the 4th ball valve 5 are all in normally off, and namely supplying under oxygen condition, the first auxiliary channel C1 and the second auxiliary channel C2 is in closing condition.The effect of its first auxiliary channel C1 and the second auxiliary channel C2: the stability that ensure that structure of the present invention on the one hand, facilitates system overhaul on the other hand.
The first ball valve 2.4 on first oxygen path A and the second ball valve 3.4 on the second oxygen path B, all be in normally open, ensure that under power down mode, first angle pedestal valve 2.3 and the second angle pedestal valve 3.3 cannot work, cannot realize automatically switching, but the second oxygen path is in opening state, and omnibus bar can continue oxygen supply.
Two parts of the present invention's each path can be directly connect or be connected by welding loose joint when being connected, and can be directly connect or be connected by welding loose joint when two paths are connected.The effect of welding loose joint: be installation and the maintenance of being convenient to component on the one hand, be can by adjustment welding loose joint on the other hand, the opening handle front ensureing ball valve outwardly, be avoided occurring that ball valve handle is at box inside, ball valve is awkward.
The present invention is owing to there being the oxygen source of oxygenerator and omnibus bar two oxygen supplys, and oxygenerator and omnibus bar can realize automatically switching in oxygen supply process, when oxygen making set system break down have a power failure or the excessive and oxygen-supplying amount of oxygen consuming amount is not enough time, directly can automatically switch to omnibus bar oxygen supply from oxygenerator oxygen supply, guarantee oxygen supply continues, thus realizes oxygen supply continuously.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a Bidirectional closed-loop automatic switching control equipment, is characterized in that: comprise the first oxygen path, the second oxygen path, export oxygen supply path, the first auxiliary channel and the second auxiliary channel,
The air outlet of described first oxygen path is connected with the first inlet mouth of described output oxygen supply path, the air outlet of described second oxygen path is connected with the second inlet mouth of described output oxygen supply path, described first auxiliary channel and described second auxiliary channel are symmetricly set on the both sides of described output oxygen supply path, and described first auxiliary channel joins with one end of described second auxiliary channel is all vertical with described output oxygen supply path, described first auxiliary channel joins with the other end of described second auxiliary channel is vertical with described second oxygen path with described first oxygen path respectively,
The inlet mouth of described first oxygen path is connected with the oxygen canister of oxygenerator, and the inlet mouth of described second oxygen path is connected with omnibus bar;
Described first auxiliary channel and the second auxiliary channel are in normally off;
When described first oxygen path leads to oxygen, described second oxygen path is in closing condition, when described second oxygen path leads to oxygen, described first oxygen path is in closing condition, i.e. the opening or close and can automatically switch of the first oxygen path and the second oxygen path, automatic switchover all arranges valve on described first oxygen path and the second oxygen path, by controlling the automatic switchover of opening or having closed the first oxygen path and the second oxygen path of the valve on the first oxygen path and the valve on the second oxygen path, the i.e. automatic switchover of oxygenerator oxygen supply and omnibus bar oxygen supply.
2. Bidirectional closed-loop automatic switching control equipment according to claim 1, it is characterized in that, described Bidirectional closed-loop automatic switching control equipment also comprises casing, the inwall of described casing is provided with mounting plate, described mounting plate comprises upper mounting plate and lower installation board, the inlet mouth end of described first oxygen path is fixed on described upper mounting plate by the first U-bolt, and the air outlet end of described first oxygen path is fixed on described lower installation board by the second U-bolt; The inlet mouth end of described second oxygen path is fixed on described upper mounting plate by the first U-bolt, and the air outlet end of described second oxygen path is fixed on described lower installation board by the second U-bolt.
3. Bidirectional closed-loop automatic switching control equipment according to claim 1, it is characterized in that, valve on described first oxygen path is the first angle pedestal valve, described first oxygen path also comprises the first inlet pipe, first check valve, first ball valve, one end of described first inlet pipe is connected with the oxygen canister of described oxygenerator, the other end is connected with one end of described first check valve, and the other end is vertical with the other end of described first auxiliary channel joins, the other end of described first check valve is connected with one end of described first angle pedestal valve, the other end of described first angle pedestal valve is connected with one end of described first ball valve, the other end of described first ball valve is connected with the first inlet mouth of described output oxygen supply path.
4. Bidirectional closed-loop automatic switching control equipment according to claim 1, it is characterized in that, valve on described second oxygen path is the second angle pedestal valve, described second oxygen path also comprises the second inlet pipe, second check valve, second ball valve, one end of described second inlet pipe is connected with described omnibus bar, the other end is connected with one end of described second check valve, and the other end is vertical with the other end of described second auxiliary channel joins, the other end of described second check valve is connected with one end of described second angle pedestal valve, the other end of described second angle pedestal valve is connected with one end of described second ball valve, the other end of described second ball valve is connected with the second inlet mouth of described output oxygen supply path.
5. the Bidirectional closed-loop automatic switching control equipment according to any one of claim 2 ~ 3, it is characterized in that, described first auxiliary channel comprises the 3rd ball valve, described 3rd ball valve is in normally off, one end of described 3rd ball valve is vertical with described output oxygen supply path to join, and the other end is vertical with the other end of described first inlet pipe to join.
6. the Bidirectional closed-loop automatic switching control equipment according to any one of claim 2 ~ 3, it is characterized in that, described second auxiliary channel comprises the 4th ball valve, described 4th ball valve is in normally off, one end of described 4th ball valve is vertical with described output oxygen supply path to join, and the other end is vertical with the other end of described second inlet pipe to join.
7. the Bidirectional closed-loop automatic switching control equipment according to any one of claim 2 ~ 3, it is characterized in that, described first inlet pipe, the second inlet pipe, output oxygen supply path are provided with fairlead, and described fairlead is above described first auxiliary channel and the second auxiliary channel.
8. Bidirectional closed-loop automatic switching control equipment according to claim 7, it is characterized in that, described Bidirectional closed-loop automatic switching control equipment also comprises pressure switch, magnetic valve and needle type valve, described fairlead is connected with described pressure switch, described pressure switch is connected with described magnetic valve, the air outlet of described magnetic valve is connected with the inlet mouth of the second angle pedestal valve with described first angle pedestal valve respectively, and the inlet mouth of described magnetic valve is connected with described needle type valve.
9. Bidirectional closed-loop automatic switching control equipment according to claim 8, is characterized in that, described Bidirectional closed-loop automatic switching control equipment also comprises warning howler, and described pressure switch is connected with described warning howler.
10. Bidirectional closed-loop automatic switching control equipment according to claim 8, is characterized in that, described needle type valve is arranged in described second inlet pipe.
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| CN201510474245.2A CN105036085B (en) | 2015-08-05 | 2015-08-05 | Bidirectional closed-loop automatic switching control equipment |
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| CN201510474245.2A CN105036085B (en) | 2015-08-05 | 2015-08-05 | Bidirectional closed-loop automatic switching control equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11192410A (en) * | 1997-10-28 | 1999-07-21 | Ngk Spark Plug Co Ltd | Oxygen concentrating device |
| CN2542242Y (en) * | 2002-05-13 | 2003-04-02 | 梁桂秋 | Central oxygen-supply apparatus |
| CN102591314A (en) * | 2012-03-26 | 2012-07-18 | 成都新炬化工有限公司 | Centralized oxygen supply system and control method |
-
2015
- 2015-08-05 CN CN201510474245.2A patent/CN105036085B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11192410A (en) * | 1997-10-28 | 1999-07-21 | Ngk Spark Plug Co Ltd | Oxygen concentrating device |
| CN2542242Y (en) * | 2002-05-13 | 2003-04-02 | 梁桂秋 | Central oxygen-supply apparatus |
| CN102591314A (en) * | 2012-03-26 | 2012-07-18 | 成都新炬化工有限公司 | Centralized oxygen supply system and control method |
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| CN105036085B (en) | 2017-06-27 |
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