Gas state on-line monitoring device

Abstract

The utility model belongs to the technical field of gas monitoring, and particularly relates to a gas state on-line monitoring device which comprises a gas main pipe and a tee joint, the tee joint is installed at one end of the gas main pipe, the rear end of the tee joint is fixedly connected with a first gas branch pipe, and the front end of the tee joint is connected with a second gas branch pipe. According to the gas state online monitoring device, when a gas pressure monitoring meter or a gas temperature monitoring meter needs to be detached and replaced, a handle is rotated to enable a threaded rod to move downwards to drive a sealing block to move downwards to the bottom end of a sliding groove, a through groove is blocked, and at the moment, a left connecting pipe and a right connecting pipe at the left end and the right end are not communicated any more; and then bolts in the flanges at the connecting positions of the right connecting pipe and the gas pressure monitoring meter or the gas temperature monitoring meter are disassembled, the gas pressure monitoring meter and the gas temperature monitoring meter are disassembled, gas in the first gas branch pipe and the second gas branch pipe cannot leak from the disassembling positions after disassembly, and the health of nearby workers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring technology, specifically to an online gas status monitoring device. Background Technology

[0002] Gas fuels are a general term for gaseous fuels that can burn and release heat for use by urban residents and industrial enterprises. There are many types of gas fuels, mainly including natural gas, manufactured gas, liquefied petroleum gas (LPG), biogas, and coal gasification. Compared with developed countries, my country's gas supply industry started relatively late, and the gas distributed mainly includes coal gas, LPG, and natural gas. my country's gas supply has seen significant growth since the 1990s.

[0003] Current monitoring devices cannot remotely monitor gas pressure and temperature on vehicles, thus posing a safety hazard.

[0004] As disclosed in Chinese Patent CN211203670U, a gas pressure and temperature monitoring device is provided. The output terminals of the gas pressure and temperature monitoring meters are electrically connected to the input terminals of the vehicle-mounted monitoring device. The vehicle-mounted monitoring device is electrically connected to the mobile APP terminal, and the gas control terminal is electrically connected to the valve closing signal transmitter. By setting up the gas pressure and temperature monitoring meters, the gas pressure and temperature inside the gas pipeline can be monitored in real time. The relevant data will be transmitted to the vehicle-mounted monitoring device. Users can also monitor through the mobile APP terminal, and it has the function of remotely closing the gas valve.

[0005] However, the gas pressure and temperature monitoring gauges in this monitoring device are only fixed to the gas pipeline via flanges. Therefore, when the gas pressure or temperature monitoring gauge is damaged and needs to be removed and replaced after shutting off the main gas valve, residual gas in the gas pipeline will drift into the air from the removal point, posing a hazard to nearby workers.

[0006] Therefore, we urgently need to provide an online gas status monitoring device that can prevent gas leakage during disassembly and assembly. Utility Model Content

[0007] The purpose of this invention is to provide an online gas status monitoring device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an online gas status monitoring device, comprising a gas main pipe and a tee, wherein the tee is installed at one end of the gas main pipe, a first gas branch pipe is fixedly connected to the rear end of the tee, a second gas branch pipe is connected to the front end of the tee, and a monitoring mechanism is installed in the middle part of the first gas branch pipe and the second gas branch pipe.

[0009] The monitoring mechanism includes a connecting block located at the right end of the first gas branch pipe and the second gas branch pipe. A left connecting pipe is fixedly connected to the lower left side of the connecting block, and a right connecting pipe is fixedly connected to the lower right side of the connecting block. A threaded rod is connected inside the connecting block. A handle is fixedly connected to the upper end of the threaded rod, and a bearing is fixedly connected to the lower outer side of the threaded rod. A sealing block is connected to the lower end of the threaded rod. A gas pressure monitoring gauge is connected to the right end of the right connecting pipe at the right end of the first gas branch pipe via a flange. A gas temperature monitoring gauge is connected to the right end of the right connecting pipe at the right end of the second gas branch pipe via a flange. The right ends of the first and second gas branch pipes are connected to the left end of the left connecting pipe via flanges.

[0010] A further improvement is that a through groove is provided at the lower end of the connecting block between the left and right connecting pipes, a vertical sliding groove is provided in the middle of the connecting block, and a threaded hole is provided at the middle of the upper end of the connecting block above the sliding groove. The outer side of the threaded rod is threadedly connected to the inner side of the threaded hole, so that when the handle is turned to rotate the threaded rod in the threaded hole, the threaded rod can move relative to the connecting block.

[0011] A further improvement is that an installation groove is provided at the middle position of the upper side of the sealing block, the outer side of the bearing is fixedly connected to the inner side of the installation groove, and the outer side of the sealing block is slidably connected to the inner side of the slide groove. Thus, by rotating the handle, the threaded rod moves down and drives the sealing block down to the bottom of the slide groove, so that the through groove can be blocked by the sealing block.

[0012] A further improvement is that the signal output terminals of the gas pressure monitoring meter and the gas temperature monitoring meter are electrically connected to the signal receiving terminal of the smart gas meter, so that the pressure and temperature information received by the gas pressure monitoring meter and the gas temperature monitoring meter will be aggregated and displayed uniformly in the smart gas meter.

[0013] A further improvement is that a pressure relief mechanism is connected to the lower end of the first gas branch pipe. The pressure relief mechanism includes a connecting box fixedly connected to the lower end of the first gas branch pipe. A spring is fixedly connected to the bottom inner side of the connecting box. A push plate is fixedly connected to the upper end of the spring. A fixing pipe is fixedly connected to the right end of the connecting box. An elastic airbag is installed at the right end of the fixing pipe.

[0014] A further improvement is that a pressure relief hole is provided at the lower end of the first gas branch pipe above the connecting box, and the outer side of the push plate is slidably connected to the outer side of the connecting box, so that when the pressure in the first gas branch pipe is too high, the spring will be compressed by excessive pressure.

[0015] A further improvement is that rubber pads are fixedly connected to the outer sides of both the sealing block and the push plate, so that when the rubber pads on the outer side of the sealing block contact the bottom end of the groove, the through groove can maintain a tight seal.

[0016] In summary, this application discloses an online gas status monitoring device.

[0017] In this technical solution, when it is necessary to disassemble the gas pressure monitoring gauge or gas temperature monitoring gauge, by turning the handle, the threaded rod moves down, causing the sealing block to move down to the bottom of the groove, which can block the groove. At this time, the left and right connecting pipes at both ends are no longer connected, so that the gas in the first or second gas branch pipe cannot leak through the groove. Thus, when the gas pressure monitoring gauge or gas temperature monitoring gauge is disassembled, the residual gas in the gas pipeline will drift into the air from the disassembly point.

[0018] Furthermore, when the pressure in the first gas branch pipe is too high, the spring will be compressed due to excessive pressure, causing the push plate to move down to below the fixed pipe. At the same time, the gas in the first gas branch pipe will enter the elastic air bag from the fixed pipe, which has the effect of depressurization. Thus, it can automatically depressurize before the staff can deal with the excessively pressurized gas, and prevent the gas pipeline from being damaged due to excessive pressure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure at the outer end of the connecting block of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the connecting block of this utility model;

[0022] Figure 4 This is a schematic diagram of the pressure relief mechanism of this utility model.

[0023] In the diagram: 1. Gas main pipe; 2. Tee; 3. First gas branch pipe; 4. Second gas branch pipe; 501. Connecting block; 502. Left connecting pipe; 503. Right connecting pipe; 504. Threaded rod; 505. Handle; 506. Bearing; 507. Sealing block; 508. Gas pressure monitoring gauge; 509. Gas temperature monitoring gauge; 601. Connecting box; 602. Spring; 603. Push plate; 604. Fixing pipe; 605. Elastic airbag. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a technical solution: an online gas status monitoring device, including a gas main pipe 1 and a tee 2. The tee 2 is installed at one end of the gas main pipe 1, and a first gas branch pipe 3 is fixedly connected to the rear end of the tee 2. A second gas branch pipe 4 is connected to the front end of the tee 2. A monitoring mechanism is installed in the middle part of the first gas branch pipe 3 and the second gas branch pipe 4.

[0026] The monitoring mechanism includes a connecting block 501 located at the right end of the first gas branch pipe 3 and the second gas branch pipe 4. A left connecting pipe 502 is fixedly connected to the lower left side of the connecting block 501, and a right connecting pipe 503 is fixedly connected to the lower right side of the connecting block 501. A threaded rod 504 is connected inside the connecting block 501, and a handle 505 is fixedly connected to the upper end of the threaded rod 504. A through groove is opened in the lower part of the connecting block 501 between the left connecting pipe 502 and the right connecting pipe 503. A vertical sliding groove is opened in the middle position inside the connecting block 501. A threaded hole is opened in the middle position above the sliding groove at the upper end of the connecting block 501. The outer side of the threaded rod 504 is threadedly connected to the inner side of the threaded hole, so that when the handle 505 is rotated to make the threaded rod 504 rotate in the threaded hole, the threaded rod 504 can move relative to the connecting block 501.

[0027] A bearing 506 is fixedly connected to the outer side of the lower end of the threaded rod 504. A sealing block 507 is connected to the lower end of the threaded rod 504. An installation groove is provided at the middle position of the upper side of the sealing block 507. The outer side of the bearing 506 is fixedly connected to the inner side of the installation groove, and the outer side of the sealing block 507 is slidably connected to the inner side of the slide groove. Thus, by rotating the handle 505, the threaded rod 504 moves down, causing the sealing block 507 to move down to the bottom end of the slide groove, which blocks the through groove. At this time, the left connecting pipe 502 and the right connecting pipe 503 at the left and right ends are no longer connected.

[0028] The right end of the right connecting pipe 503 at the right end of the first gas branch pipe 3 is connected to a gas pressure monitoring gauge 508 via a flange. The right end of the right connecting pipe 503 at the right end of the second gas branch pipe 4 is connected to a gas temperature monitoring gauge 509 via a flange. The right ends of the first gas branch pipe 3 and the second gas branch pipe 4 are connected to the left end of the left connecting pipe 502 via flanges. The signal output terminals of the gas pressure monitoring gauge 508 and the gas temperature monitoring gauge 509 are electrically connected to the signal receiving terminal of the smart gas meter. This allows the pressure and temperature information received by the gas pressure monitoring gauge 508 and the gas temperature monitoring gauge 509 to be aggregated and displayed uniformly on the smart gas meter, enabling staff to receive gas status information more quickly.

[0029] The lower end of the first gas branch pipe 3 is connected to a pressure relief mechanism. The pressure relief mechanism includes a connecting box 601 fixedly connected to the lower end of the first gas branch pipe 3. A spring 602 is fixedly connected to the bottom inner side of the connecting box 601. A push plate 603 is fixedly connected to the upper end of the spring 602. A fixing pipe 604 is fixedly connected to the right end of the connecting box 601. An elastic airbag 605 is installed at the right end of the fixing pipe 604.

[0030] A pressure relief hole is provided at the lower end of the first gas branch pipe 3 above the connecting box 601, and the outer side of the push plate 603 is slidably connected to the outer side of the connecting box 601. Therefore, when the pressure inside the first gas branch pipe 3 is too high, the spring 602 will be compressed under excessive pressure, causing the push plate 603 to move down below the fixed pipe 604. Simultaneously, the gas in the first gas branch pipe 3 will enter the elastic air bladder 605 from the fixed pipe 604, achieving a pressure relief effect. This allows for automatic pressure relief before workers can handle excessively pressurized gas, preventing damage to the gas pipeline due to excessive pressure.

[0031] Rubber pads are fixedly connected to the outer sides of both the sealing block 507 and the push plate 603. This ensures a tight seal in the passageway when the rubber pad on the outer side of the sealing block 507 contacts the bottom of the groove, preventing gas leakage from the first gas branch pipe 3 or the second gas branch pipe 4. Similarly, the rubber pad on the outer side of the push plate 603 contacts the inner side of the connecting box 601, ensuring a seal at the contact point between the push plate 603 and the connecting box 601, guaranteeing the normal operation of the automatic pressure relief function.

[0032] Working principle: When the gas pressure monitor 508 or gas temperature monitor 509 needs to be disassembled and replaced, first turn the handle 505 to move the threaded rod 504 down, causing the sealing block 507 to move down to the bottom of the slide groove, blocking the through groove. At this time, the left connecting pipe 502 and the right connecting pipe 503 at the left and right ends are no longer connected. Then, remove the bolts in the flange at the connection between the right connecting pipe 503 and the gas pressure monitor 508 or gas temperature monitor 509 to disassemble the gas pressure monitor 508 and gas temperature monitor 509. After disassembly, the gas in the first gas branch pipe 3 and the second gas branch pipe 4 will not leak from the disassembly point, ensuring the health of nearby workers.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A gas status online monitoring device, comprising a gas main pipe (1) and a tee (2), wherein the tee (2) is installed at one end of the gas main pipe (1), characterized in that: The rear end of the tee (2) is fixedly connected to a first gas branch pipe (3), and the front end of the tee (2) is connected to a second gas branch pipe (4). A monitoring mechanism is installed in the middle part of the first gas branch pipe (3) and the second gas branch pipe (4). The monitoring mechanism includes a connecting block (501) located at the right end of the first gas branch pipe (3) and the second gas branch pipe (4). A left connecting pipe (502) is fixedly connected to the lower left side of the connecting block (501), and a right connecting pipe (503) is fixedly connected to the lower right side of the connecting block (501). A threaded rod (504) is connected inside the connecting block (501). A handle (505) is fixedly connected to the upper end of the threaded rod (504), and a handle (505) is fixed to the lower outer side of the threaded rod (504). A bearing (506) is connected, and a sealing block (507) is connected to the lower end of the threaded rod (504). A gas pressure monitoring gauge (508) is connected to the right end of the right connecting pipe (503) at the right end of the first gas branch pipe (3) via a flange. A gas temperature monitoring gauge (509) is connected to the right end of the right connecting pipe (503) at the right end of the second gas branch pipe (4) via a flange. The right ends of the first gas branch pipe (3) and the second gas branch pipe (4) are connected to the left end of the left connecting pipe (502) via flanges.

2. The gas status online monitoring device according to claim 1, characterized in that: The lower part of the connecting block (501) located between the left connecting pipe (502) and the right connecting pipe (503) has a through groove. The middle part of the connecting block (501) has a vertical sliding groove. The upper part of the connecting block (501) located above the middle part of the sliding groove has a threaded hole. The outer side of the threaded rod (504) is threaded to the inner side of the threaded hole.

3. The gas status online monitoring device according to claim 1, characterized in that: An installation groove is provided at the middle position of the upper side of the sealing block (507). The outer side of the bearing (506) is fixedly connected to the inner side of the installation groove, and the outer side of the sealing block (507) is slidably connected to the inner side of the sliding groove.

4. The gas status online monitoring device according to claim 1, characterized in that: The signal output terminals of the gas pressure monitoring meter (508) and the gas temperature monitoring meter (509) are electrically connected to the signal receiving terminal of the smart gas meter.

5. The gas status online monitoring device according to claim 1, characterized in that: The lower end of the first gas branch pipe (3) is connected to a pressure relief mechanism. The pressure relief mechanism includes a connecting box (601) fixedly connected to the lower end of the first gas branch pipe (3). A spring (602) is fixedly connected to the bottom inner side of the connecting box (601). A push plate (603) is fixedly connected to the upper end of the spring (602). A fixing pipe (604) is fixedly connected to the right end of the connecting box (601). An elastic airbag (605) is installed on the right end of the fixing pipe (604).

6. The gas status online monitoring device according to claim 5, characterized in that: The lower end of the first gas branch pipe (3) is provided with a pressure relief hole above the connecting box (601), and the outer side of the push plate (603) is slidably connected to the outer side of the connecting box (601).

7. The gas status online monitoring device according to claim 5, characterized in that: Rubber pads are fixedly connected to the outer sides of both the sealing block (507) and the push plate (603).

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