CN218156653U - Air respirator manometer detection device - Google Patents

Abstract

The utility model relates to a fluid pressure measures technical field, concretely relates to air respirator manometer detection device, air respirator manometer detection device includes the adapter, the adapter has first interface, the second interface, the third interface, first interface is used for connecting air respirator's gas cylinder or external air supply, the gas that the gas cylinder interface of the pressure reducer of second interface is used for connecting air respirator is in order to supply air respirator's gas cylinder or external air supply is through the adapter, the pressure reducer gets into air respirator's manometer, the third interface even has standard pressure gauge, can judge air respirator's manometer whether has the value overproof phenomenon through the difference of comparison standard pressure gauge measured value and air respirator's manometer measured value, utilize standard pressure gauge cooperation adapter to detect air respirator's manometer like this, need not dismantle air respirator's manometer alone, avoid causing the influence to air respirator's leakproofness.

Description

Air respirator manometer detection device

Technical Field

The utility model relates to a fluid pressure measures technical field, concretely relates to air respirator manometer detection device.

Background

In the production process of a gas field, produced gas contains toxic and harmful gases such as hydrogen sulfide, and therefore workers need to wear air respirators as personal safety protection devices in some operation scenes. The positive pressure air respirator is widely used in scenes such as fire fighting, petroleum, smelting, factories and mines, laboratories and the like, so that firemen or rescue personnel can safely carry out fire extinguishing, rescue and relief work and rescue work in severe environments filled with dense smoke, toxic gas, steam or oxygen deficiency.

The existing positive pressure air respirator generally comprises an air bottle, a back bracket, a pressure gauge, an alarm whistle and a face mask, wherein a bottle valve is arranged at the bottle mouth of the air bottle, a pressure reducer is fixed on the back bracket and is provided with an air bottle interface, the air bottle interface is connected with the bottle valve of the air bottle, in order to facilitate the disassembly and assembly of the air bottle, the air bottle interface is generally formed by a quick connector with a hand wheel so as to be quickly separated from or connected with a corresponding air supply interface on the bottle valve, a medium pressure channel and a high pressure channel are arranged in the pressure reducer, the medium pressure channel is connected with a medium pressure air guide pipe, the high pressure channel is connected with a high pressure air guide pipe, high pressure air in the air bottle is divided into two paths after entering the pressure reducing valve through the bottle valve, one path of air flow enters the medium pressure channel after being reduced in pressure and enters an air supply valve on the face mask through the medium pressure air guide pipe for rescue workers to breathe, the other path of air flow directly reports to the alarm whistle and the pressure gauge through the high pressure channel, the pressure air guide pipe, the pressure gauge is used for detecting the evacuation of the pressure in the pressure gauge, the alarm whistle is used for giving an alarm whistle when the air bottle is lower than 5.5.5 MPa, at the pressure in the air bottle, at the moment, the user needs to a place which does not need to be protected by using an air filling pump, and then to inflate the air bottle or replace the air bottle.

Taking an air respirator with the rated pressure of 30MPa as an example, the pressure is gradually reduced in the using process, the air respirator can be generally used for about 30min under the condition of normal no operation and no movement, a fireman wears the air respirator in a rescue site and is in a fast walking state or when a gas field worker operates in a high-strength site, the air in the air bottle can be rapidly consumed, and the pressure gauge is used as an important air pressure information real-time obtaining channel for the wearing person, so that whether the actual pressure can be accurately displayed is very important. If the pressure gauge is not used for a long time, the indication value of a pointer of the pressure gauge is out of tolerance, the safety performance of the air respirator cannot be indicated, and field users can deviate the estimation amount of the residual air in the air exhaling, so that the life safety of the field users is seriously threatened.

At present the detection to the manometer is through sending the manometer to the laboratory in order to detect through corresponding detecting instrument, and for the convenience of experimenter's operation and with corresponding detecting instrument cooperation, it examines to dismantle alone the manometer usually, unpack the manometer apart with the air duct, install again after detecting the completion together, and positive pressure air respirator belongs to self-supplied isolated formula safety protection utensil, its leakproofness is one of very important performance, if examine to dismantle the manometer of air respirator, dismantle, probably can damage the interface of manometer and lead to the fact the damage to the air duct of manometer department in the installation, thereby influence sealing performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air respirator manometer detection device to solve current manometer and detect the problem that needs dismantle the manometer and influence the leakproofness easily.

The utility model discloses an air respirator manometer detection device's technical scheme is:

the utility model provides an air respirator manometer detection device, includes the adapter, the adapter has first interface, the second interface, the third interface, first interface is used for connecting air respirator's gas cylinder or external air supply, the gas cylinder interface that the second interface is used for connecting air respirator's pressure reducer gets into air respirator's manometer through adapter, pressure reducer with the gas that supplies air respirator's gas cylinder or external air supply, the third interface even has standard manometer.

Has the advantages that: through setting up adapter and the standard pressure gauge that can link to each other with the gas cylinder interface of air respirator's pressure reducer, like this when needs examine air respirator's manometer, can unpack the cylinder valve of gas cylinder apart with the pressure reducer, thereby link to each other adapter and the gas cylinder interface of pressure reducer, gas cylinder or the external air supply through air respirator supply have certain pressure gas, gas can be in proper order through the adapter, air respirator's pressure reducer, the air duct gets into air respirator's manometer, manometer through air respirator obtains first pressure measured value, and simultaneously, the standard pressure gauge measurable quantity that sets up on the adapter obtains the second pressure measured value, because standard pressure gauge's precision is greater than air respirator's manometer, thereby standard pressure gauge's second pressure measured value is more accurate, manometer through comparing first pressure measured value and second pressure measured value's difference can judge air respirator has the value overproof phenomenon, utilize standard pressure gauge cooperation adapter to detect air respirator's manometer like this, do not need not dismantle air respirator's manometer alone, avoid causing the influence to air respirator's leakproofness.

Further, the adapter includes the relief valve, and the relief valve sets up between arbitrary two in first interface, second interface, third interface.

Has the advantages that: can release the atmospheric pressure in the adapter through the relief valve to can observe the air respirator's of pressure release in-process manometer and standard pressure table's measured value, be favorable to improving and detect the accuracy, simultaneously, can be when pressure release to a certain extent, observe the pressure value when reporting an emergency and ask for help or increased vigilance.

Further, the adapter still includes first joint, and first interface setting is in the one end of first joint, and the other end of first joint links to each other with the relief valve.

Has the advantages that: the pressure release valve is connected with the air cylinder of the air respirator or an external air source through the first joint, so that the matching connection is facilitated.

Further, the adapter includes the stop valve, and the second interface sets up on the stop valve.

Has the advantages that: through the gas cylinder interface accordant connection who sets up stop valve and air respirator's pressure reducer to after gas gets into air respirator's manometer through pressure reducer, air duct, can test the leakproofness of the gas circuit between pressure reducer to air respirator's the manometer through closing the stop valve.

Further, the adapter still includes second joint, third joint, and the third interface setting is connected on the third joint, and the one end that the second connects links to each other with the stop valve, and the other end links to each other with the third joint.

Has the beneficial effects that: through set up the second between third joint and stop valve and connect, can increase the distance between third joint and the pressure reducer, easy to assemble the operation.

Furthermore, two ends of the second joint are respectively in threaded connection with the stop valve and the third joint, a pulling and twisting plane is arranged on the second joint, and a pulling and twisting tool is used for driving the second joint to rotate by the pulling and twisting plane.

Has the advantages that: by utilizing the wrenching plane, the second connector is conveniently driven to rotate by the wrenching tool so as to carry out threaded connection operation.

Further, still include the support, be equipped with elevating system on the support, the adapter links to each other with elevating system.

Has the advantages that: support the adapter through the support that sets up to have elevating system, make things convenient for the operation personnel to connect the operation, simultaneously, go up and down through driving the adapter, the height of adjustable adapter to after the adapter links to each other with the pressure reducer, make air respirator's back of the body bracket support subaerial.

Further, the standard pressure gauge is a digital precision pressure gauge.

Has the advantages that: adopt digital precision pressure table, make things convenient for the measurement personnel to observe the reading, be favorable to promoting detection efficiency.

Drawings

FIG. 1 is a schematic structural view of the pressure gauge detecting device of the air respirator of the present invention in use;

fig. 2 is a schematic structural view of an adapter of the air respirator pressure gauge detection device of the present invention;

FIG. 3 is a schematic diagram of the connection of the three-way joint of FIG. 1 with a standard pressure gauge, a pressure relief valve, and a second joint;

FIG. 4 is a schematic structural view of the first joint of FIG. 1;

fig. 5 is a schematic view of the shut-off valve of fig. 1.

Description of reference numerals: 1. an empty-call pressure gauge; 2. a whistle is reported; 3. an air duct; 4. a back bracket; 5. a stop valve; 6. a second joint; 7. a three-way joint; 8. a standard pressure gauge; 9. a pressure relief valve; 91. a pressure relief port; 10. a first joint; 11. a gas cylinder; 111. a cylinder valve; 12. a support; 121. a crank handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the possible occurrences of the phrases "comprising one of 8230; \8230;" comprising 8230; "etc. does not exclude the presence of additional identical elements in any process, method, article, or apparatus that comprises the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art through specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model discloses an air respirator manometer detection device's embodiment 1:

as shown in figure 1, figure 2, figure 3, figure 4, figure 5 shows, air respirator manometer detection device includes adapter and standard manometer 8, the adapter includes three way connection 7, relief valve 9, first joint 10, second joint 6, stop valve 5, first joint 10 is used for linking to each other with gas cylinder 11, stop valve 5 is used for linking to each other with the gas cylinder 11 interface of air respirator's pressure reducer, in this embodiment, directly utilize air respirator's gas cylinder 11 to provide the air supply, gas in the gas cylinder 11 can get into the adapter and again pass through air respirator's pressure reducer in proper order, air duct 3, the air breathing pressure table 1 is led to the alarm whistle, air breathing pressure table 1 is the manometer of air respirator promptly. Whether the indication value of the empty-expiration pressure gauge 1 exceeds the tolerance value can be judged by comparing the measurement values of the standard pressure gauge 8 and the empty-expiration pressure gauge 1.

Three way connection 7 constitutes the third and connects, three way connection 7 has three opening, be first opening respectively, the second opening, the third opening, first opening and second opening relative distribution, the third opening constitutes the third interface, standard pressure gauge 8 links to each other with the third interface, first opening links to each other with the one end of relief valve 9, the other end of relief valve 9 links to each other with the one end of first joint 10, the other end of first joint 10 links to each other with bottle valve 111 on the gas cylinder 11, the second opening links to each other with the one end of second joint 6, the other end of second joint 6 links to each other with the one end of stop valve 5, the other end of stop valve 5 links to each other with the gas cylinder interface of the pressure reducer of air respirator.

The interface of one end that meets with the cylinder valve 111 of gas cylinder 11 of first joint 10 constitutes first interface, and the first interface on first joint 10 adopts the structure the same with the gas cylinder interface of the pressure reducer of air respirator, is convenient for like this match with the interface on the cylinder valve 111, is favorable to realizing quick assembly disassembly.

There is pressure release mouth 91 on the relief valve 9, can release the atmospheric pressure in the adapter through pressure release mouth 91 through opening relief valve 9 to can observe the empty manometer 1 of exhaling among the pressure release process and standard pressure gauge 8's measured value, be favorable to improving and detect the accuracy, simultaneously, can be when pressure release to a certain extent, observe the pressure value when reporting to police whistle 2 rings.

Standard pressure table 8 is used for detecting the atmospheric pressure in the adapter, and standard pressure table 8's precision is greater than the precision of air respirator's manometer, and standard pressure table 8 uses 0.2 level digital precision pressure table, and digital precision pressure table is prior art, can show the measured value with digital form on the display screen, makes things convenient for the measurement personnel to observe the reading, is favorable to promoting detection efficiency.

Two ends of the second joint 6 are respectively in threaded connection with the stop valve 5 and the third joint, a wrenching plane is arranged on the peripheral surface of the second joint 6 and is formed by milling flat surfaces, and a wrenching tool is clamped on the wrenching plane to drive the second joint 6 to rotate so as to perform threaded connection operation.

The stop valve 5 adopts a valve identical to the cylinder valve 111 of the gas cylinder 11, so that the gas cylinder interface of the pressure reducer of the air respirator can be conveniently connected in a matching way, and the rapid disassembly and assembly are facilitated. The interface that the gas cylinder interface that is used for with the pressure reducer of air respirator of stop valve 5 links to each other constitutes the second interface, and after gas got into empty breathing pressure gauge 1 through pressure reducer, air duct 3, can test the leakproofness of the gas circuit between pressure reducer and the empty breathing pressure gauge 1 through closing stop valve 5.

Air respirator manometer detection device still includes support 12, and support 12 is the tripod, is equipped with elevating system on the support 12, and the price raising mechanism has crank 121, and operating personnel accessible rotates crank 121 so that elevating system drives the adapter lift, and this kind of tripod with raising and lowering functions belongs to current conventional technology. The lifting mechanism of the support 12 is connected to one side, back to the third interface, of the three-way connector 7 of the adapter, the adapter is supported by the support 12, connecting operation of an operator is facilitated, the height of the adapter can be adjusted by driving the adapter to lift, so that after the adapter is connected with the pressure reducer and the gas cylinder 11, the back support 4 and the gas cylinder 11 of the air respirator are supported on the ground, screw threads at the connecting position are effectively prevented from being damaged, and detection data are accurate and reliable; simultaneously, can play the extension effect through second joint 6, increase the distance between three way connection 7 and the pressure reducer, easy to assemble the operation.

All be interior external screw thread connection between three way connection 7, relief valve 9, first joint 10, second joint 6, the stop valve 5, detachable structure like this can adorn in suitcase or handbag after the dismantlement, is favorable to the scene to carry, if accessory wearing and tearing or damage appear in the later stage, can directly only change or maintain impaired accessory, reduce cost of maintenance.

When the device is used, the tee joint 7 above is fixed by the bracket 12, and the tee joint 7 and the bracket 12 are fixed stably and do not shake, so that the phenomena of toppling, air leakage at a joint and the like are avoided when other parts are installed in the subsequent process; a second joint 6 is arranged on the three-way joint 7, a stop valve 5 is arranged on the second joint 6, a pressure release valve 9 is arranged on the three-way joint 7, the pressure release valve 9 is connected with a first joint 10, and all joints are fastened to avoid air leakage; the stop valve 5 is connected with the air bottle interface of the pressure reducer on the back bracket 4 of the air respirator, and the first joint 10 is connected with the bottle valve 111 of the air bottle 11 of the air respirator. After the connection between the back brackets 4 on the two sides and the gas cylinder 11 is finished, the crank 121 on the rotating bracket 12 adjusts the height of the adapter, the back brackets 4 on the two sides and the height of the gas cylinder 11 relative to the ground, so that the bottoms of the back brackets 4 and the gas cylinder 11 can contact the ground for supporting, and the weight of the back brackets 4 and the gas cylinder 11 is reduced to press the adapter; a digital standard pressure gauge is arranged above the three-way joint 7;

before detection, closing a cylinder valve 111 of a gas cylinder 11 and opening a pressure release valve 9 to enable the adapter to be in a state of being communicated with the atmosphere, observing whether a standard pressure gauge 8 and an air breathing pressure gauge 1 are in a state of zero pressure, then closing the pressure release valve 9 to slowly open the cylinder valve 111 of the gas cylinder 11 to enable the pressure to slowly rise, and observing and recording pressure values displayed by the air breathing pressure gauge 1 when the standard pressure gauge 8 is boosted to 5.5MPa, 15MPa, 25MPa and the highest pressure in the boosting process;

closing the cylinder valve 111 to perform a pressure resistance test, observing and recording whether the 3min standard pressure gauge 8 has the pressure drop, if not, indicating that the sealing is good, and if so, indicating that the pipeline leaks air;

after the pressure resistance test is finished, opening a pressure release valve 9 to respectively detect pressure indication values of 25MPa, 15MPa and 5.5MPa when the air breathing pressure gauge 1 returns;

when the pressure is released to be about 5.5MPa, the pressure release speed is further slowed down, the alarm whistle 2 is observed to respond and send out an alarm sound, and the pressure indication value displayed by the standard pressure gauge 8 is recorded as the actual alarm pressure value of the positive pressure type air respirator.

Adapter and the higher standard pressure gauge of precision that can link to each other through the gas cylinder interface that sets up the pressure reducer with air respirator like this, thereby obtain first air pressure measured value with air respirator's manometer and carry out the comparison with the second air pressure measured value that standard pressure gauge measured and obtained, can judge whether air respirator's manometer has the overproof phenomenon of indicating value, docking structure between gas cylinder on the air respirator and the pressure reducer is utilized like this to come into detection device and is realized detecting air respirator's manometer, air respirator's manometer need not be dismantled alone, avoid causing the influence to air respirator's leakproofness, satisfy and not dismantle the field test condition that air respirator carries out air respirator. And can utilize the gas cylinder of air respirator self-carrying to detect, the indicating value of empty manometer not only can be detected to the standard pressure gauge, can also inspect the leakproofness of the pipeline that empty manometer is even when gas cylinder pressure is full open, can inspect whether normal warning whistle when detecting the indicating value of empty manometer of exhaling.

The utility model discloses an air respirator manometer detection device's embodiment 2:

the difference between this embodiment and embodiment 1 lies in that, in embodiment 1, the adapter includes a three-way joint, a pressure relief valve, a first joint, a second joint, and a stop valve, and a third interface of the adapter is provided on the three-way joint, a second interface is provided on the second joint, and a first interface is provided on the first joint. In this embodiment, the relief valve, the first joint, the second joint, and the stop valve are not provided, and the three ports of the three-way joint respectively form the first interface, the second interface, and the third interface of the adapter.

The utility model discloses an air respirator manometer detection device's embodiment 3:

the present embodiment is different from embodiment 1 in that, in embodiment 1, a relief valve is provided between the first joint and the three-way joint. In this embodiment, the relief valve is disposed between the second joint and the three-way joint.

The utility model discloses an air respirator manometer detection device's embodiment 4:

the present embodiment is different from embodiment 1 in that in embodiment 1, the first interface of the adapter is used for connecting a gas cylinder of an air respirator. In this embodiment, the first interface of the adapter is used for connecting an air pump, and the air pump constitutes an external air source.

Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments may be modified without inventive effort, or some technical features may be substituted equally. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides an air respirator manometer detection device, characterized by, includes the adapter, and the adapter has first interface, second interface, third interface, and first interface is used for connecting air respirator's gas cylinder or external air supply, and the second interface is used for connecting the gas cylinder interface of air respirator's pressure reducer and gets into air respirator's manometer through adapter, pressure reducer with the gas that supplies air respirator's gas cylinder or external air supply, and the third interface even has standard manometer.

2. The air respirator pressure gauge detection device of claim 1, wherein the adapter comprises a pressure relief valve, and the pressure relief valve is disposed between any two of the first port, the second port, and the third port.

3. The air respirator pressure gauge detection device of claim 2, wherein the adapter further comprises a first connector, wherein the first interface is disposed at one end of the first connector, and wherein the other end of the first connector is connected to the pressure relief valve.

4. An air respirator pressure gauge detection device as claimed in claim 1, 2 or 3 wherein the adapter comprises a shut-off valve and the second port is provided on the shut-off valve.

5. The air respirator pressure gauge detection device of claim 4, wherein the adapter further comprises a second connector and a third connector, wherein the third connector is disposed on the third connector, and wherein one end of the second connector is connected to the stop valve and the other end of the second connector is connected to the third connector.

6. The air respirator pressure gauge detection device of claim 5, wherein both ends of the second connector are respectively in threaded connection with the stop valve and the third connector, and the second connector is provided with a wrenching plane for the wrenching tool to drive the second connector to rotate.

7. The air respirator pressure gauge detection device of claim 1, 2 or 3, further comprising a support, wherein the support is provided with a lifting mechanism, and the adapter is connected with the lifting mechanism.

8. An air respirator pressure gauge detection device according to claim 1, 2 or 3, wherein the standard pressure gauge is a digital precision pressure gauge.

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