Detection alarm device for preventing leakage

Abstract

The utility model discloses a detection alarm device for preventing leakage, which comprises a flange plate sleeve cover and a side pipe ring sleeve, pipe holes are arranged on two sides of the flange plate sleeve cover, the side pipe ring sleeve is fixedly arranged on the outer side hole edges of the pipe holes, the flange plate sleeve cover is formed by covering an upper half cover shell and a lower half cover shell together, and the upper half cover shell and the lower half cover shell are fixedly arranged on the flange plate sleeve cover. The side pipe ring sleeve is composed of a first semi-ring sleeve and a second semi-ring sleeve, semi-ring-shaped sealing liquid bags are installed on the inner side sleeve walls of the first semi-ring sleeve and the second semi-ring sleeve, a detection hole is formed in the wall of the upper half cover shell, a detector installation sleeve is installed on the outer side hole edge of the detection hole, and a detector is installed on the detector installation sleeve. A detection alarm is detachably mounted on the detector mounting sleeve, and liquid injection pipes are fixedly mounted on the sleeve wall of the first semi-ring sleeve and the sleeve wall of the second semi-ring sleeve. The beneficial effects are that the detection part and the housing can be rapidly detached, maintenance is convenient, double alarm is realized, safety is high, sealing is realized through liquid bag sealing, the sealing effect is good, and the installation requirement is low.

Description

Technical Field

[0001] The utility model relates to the field of gas delivery detection devices, in particular to a detection alarm device for preventing leakage. Background Art

[0002] In the transportation process of chemical raw materials, gas is generally transported through multiple sections of pipelines. The joints between the multiple sections are mostly fixed by flanges. In the transportation process of chemical gas, leakage often occurs at the joints. Gas leakage not only causes losses, but also poses a huge safety hazard.

[0003] Existing detection methods for preventing leakage include air pressure detection at the leakage point, gas composition analysis detection, or pipeline flow monitoring. Air pressure detection is mostly performed by assembling the cover to the flange, and then monitoring is performed there. In order to ensure its airtightness, the pipeline is often padded with interference fit sealing assembly ring gaskets. The installation requirements are high, otherwise it will affect its airtightness. In addition, the detection equipment and the shell are mostly an integrated structure, and the entire structure needs to be disassembled for inspection and replacement. Utility Model Content

[0004] The purpose of the present invention is to provide a leakage prevention detection alarm device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] The invention relates to a detection alarm device for preventing leakage, comprising a flange cover and a side pipe ring sleeve, wherein pipe holes are provided on both sides of the flange cover, and the side pipe ring sleeve is fixedly mounted on the outer hole edge of the pipe hole, the flange cover is composed of an upper half shell and a lower half shell buckled together, the side pipe ring sleeve is composed of a first half ring sleeve and a second half ring sleeve, a semi-annular sealed liquid sac is installed on the inner sleeve wall of the first half ring sleeve and the second half ring sleeve, a detection hole is opened on the shell wall of the upper half shell, a detector mounting sleeve is installed on the outer hole edge of the detection hole, a detection alarm is detachably mounted on the detector mounting sleeve, an injection tube is fixedly mounted on the sleeve wall of the first half ring sleeve and the second half ring sleeve, one end of the injection tube is connected to the semi-annular sealed liquid sac, the detection alarm is composed of a control box and an audible and visual alarm mounted on the top of the control box, an air pressure sensor is connected to the bottom of the control box through a sensor line tube, and a wireless control circuit board is installed inside the control box.

[0007] Furthermore, a sleeve edge strip is installed on the shell edge of the joint of the upper half shell and the lower half shell, and the sleeve edge strips on the upper half shell and the lower half shell are fixed together by fixing screws, and an edge strip inner pad is installed on one side of the sleeve edge strip.

[0008] Furthermore, a bottom rotary tube is installed at the bottom of the control box.

[0009] Furthermore, a box bottom sealing ring pressure pad is installed at the bottom of the control box, and the box bottom sealing ring pressure pad is pressed onto the top of the detector mounting sleeve.

[0010] Furthermore, a pipe orifice valve is fixedly installed on the outer end of the liquid injection pipe.

[0011] The beneficial effects are: the detection part and the shell of the leakage prevention detection alarm device described in the utility model can be quickly disassembled, which is convenient for maintenance, has a double alarm, is highly safe, is sealed by a liquid bag, has a good sealing effect and has low installation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a leakage prevention detection alarm device according to the present invention;

[0013] Figure 2 It is a schematic diagram of a detection alarm of a leakage prevention detection alarm device described in the present invention.

[0014] The following are the descriptions of the reference numerals:

[0015] 1. Flange cover, 11. Upper half cover, 12. Lower half cover; 2. Side pipe ring, 21. First half ring, 22. Second half ring, 23. Semi-annular sealing liquid capsule; 3. Detector mounting sleeve; 4. Detection alarm, 41. Control box, 42. Bottom rotary tube, 43. Sensing wire tube, 44. Air pressure sensor, 45. Sound and light alarm, 46. Box bottom sealing ring pressure pad; 5. Liquid injection pipe; 6. Pipe mouth valve; 7. Sleeve edge strip; 8. Edge strip inner pad; 9. Fixing screws. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] like Figure 1-Figure 2 As shown, a leakage prevention detection alarm device is composed of a flange cover 1 and a side pipe ring 2;

[0018] Pipe holes are provided on both sides of the flange cover 1, and the side pipe ring sleeve 2 is fixedly installed on the outer edge of the pipe hole. The flange cover 1 is composed of an upper half cover shell 11 and a lower half cover shell 12 buckled together. The side pipe ring sleeve 2 is composed of a first half ring sleeve 21 and a second half ring sleeve 22. A semi-annular sealing liquid bag 23 is installed on the inner sleeve wall of the first half ring sleeve 21 and the second half ring sleeve 22. It can be filled with liquid to achieve a seal between the side pipe ring sleeve 2 and the gas delivery pipe wall;

[0019] A detection hole is opened on the shell wall of the upper half shell 11, and a detector mounting sleeve 3 is installed on the outer hole edge of the detection hole. A detection alarm 4 is detachably mounted on the detector mounting sleeve 3. The detection alarm 4 is used to detect gas leakage at the flange joint and provide sound and light warnings and feedback alarms;

[0020] The first half ring 21 and the second half ring 22 are both fixedly mounted with an injection tube 5, one end of which is connected to the semi-annular sealed liquid bag 23 for filling it with liquid;

[0021] The detection alarm 4 consists of a control box 41 and an audible and visual alarm 45 installed on the top of the control box 41. The bottom of the control box 41 is connected to a pressure sensor 44 through a sensing conduit 43. The pressure sensor 44 enters the interior of the flange housing 1 to monitor the internal air pressure. A wireless control circuit board is installed inside the control box 41, which communicates with the pressure sensor 44 through the lines in the sensing conduit 43. It can transmit information to the main control room through a wireless module to realize multiple alarms. A battery for continuous power supply is also installed inside the control box 41.

[0022] like Figure 1-Figure 2 As shown, the present invention also discloses the following multiple more optimized specific structures:

[0023] A sleeve edge strip 7 is installed on the edge of the joint of the upper half shell 11 and the lower half shell 12. The sleeve edge strips 7 on the upper half shell 11 and the lower half shell 12 are fixed together by fixing screws 9. An edge strip inner pad 8 is installed on one side of the sleeve edge strip 7 to increase the air tightness of the assembly.

[0024] A bottom screw-on tube 42 is installed at the bottom of the control box 41 , and the bottom screw-on tube 42 is screwed into the detector mounting sleeve 3 to realize a detachable connection, so as to facilitate the replacement of detection components and achieve quick separation.

[0025] A box bottom sealing ring pressure pad 46 is installed at the bottom of the control box 41. The box bottom sealing ring pressure pad 46 is pressed onto the top of the detector installation sleeve 3 to achieve sealing there.

[0026] A pipe orifice valve 6 is fixedly mounted on the outer end of the liquid injection pipe 5 .

[0027] like Figure 1-Figure 2 The flange cover 1 of the leakage prevention detection alarm device shown is provided with a pipe flange interface cover by splicing the upper half cover shell 11 and the lower half cover shell 12. Then the side pipe ring sleeves 2 on both sides are sleeved on the delivery pipe. By injecting liquid into the injection pipe 5, the semi-annular sealing liquid sac 23 is expanded and cushioned between the side pipe ring sleeve 2 and the delivery pipe with a certain pressure, thereby realizing hydraulic stamping sealing, improving its sealing performance, and eliminating the need for matching ring gasket interference pressure installation, thereby reducing the difficulty of installation;

[0028] The detection alarm 4 and the detector mounting sleeve 3 are quickly installed by screwing, so that the air pressure sensor 44 can be quickly inserted into the flange cover 1, which is convenient for monitoring the internal air pressure. There is no need to disassemble the entire assembly during maintenance, which is convenient for maintenance.

[0029] The location of the pipe leakage can be quickly determined by the sound and light alarm 45, and remote communication connection is achieved through the wireless control circuit board, thereby realizing dual alarms and improving its safety.

[0030] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A leak prevention detection alarm device, characterized by: The flask is constructed by having a plurality of openings in the middle and a plurality of openings in the middle, and the openings are connected along the length of the flask to form a plurality of lineals, wherein the openings are connected along the length of the flask to form a plurality of lineals. The flask is constructed by combining a plurality of openings in the middle and a plurality of other openings. The flask is constructed by combining a plurality of openings in the middle and a plurality of other openings.

2. The leak prevention detection alarm device according to claim 1, characterized in that: A sleeve edge strip is installed on the shell edge of the joint of the upper half shell and the lower half shell. The sleeve edge strips on the upper half shell and the lower half shell are fixed together by fixing screws, and an edge strip inner pad is installed on one side of the sleeve edge strip.

3. The leakage prevention detection alarm device according to claim 1, characterized in that: A bottom rotary tube is installed at the bottom of the control box.

4. The leak prevention detection alarm device according to claim 1, characterized in that: A box bottom sealing ring pressure pad is installed at the bottom of the control box, and the box bottom sealing ring pressure pad is pressed onto the top of the detector installation sleeve.

5. The leakage prevention detection alarm device according to claim 1, characterized in that: A pipe orifice valve is fixedly installed on the outer end of the liquid injection pipe.

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