Differential pressure alarm device of gas filter

Abstract

The utility model relates to the technical field of fuel gas filters, and discloses a fuel gas filter differential pressure alarm device which comprises a fuel gas filter body, a sealing cover is arranged at the top of the fuel gas filter body, and a fixing bolt movably penetrates through the top of the sealing cover. A connecting gas inlet pipeline movably penetrates through the outer wall of the gas filter body, and a connecting gas outlet pipe movably penetrates through the outer wall of the gas filter body. By arranging the mounting base, the special-shaped clamping block is clamped in the special-shaped mounting groove, the fixing threaded rod extends into the fixing hole, the first circular fixing cap and the second circular fixing cap are rotated to reinforce the mounting base and the mounting plate, and during dismounting, the first circular fixing cap and the second circular fixing cap are rotated to enable the fixing threaded rod to be separated from the fixing hole, so that the mounting base and the mounting plate are fixed. And the mounting plate and the mounting base are separated, so that the alarm body can be conveniently detected and maintained, and the effects of conveniently disassembling and assembling the alarm body and maintaining the alarm body are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filters, in particular to a differential pressure alarm device for a gas filter. Background Technique

[0002] Gas filters are widely used in gas-using fields such as metallurgy, chemical industry, petroleum, paper-making, medicine, food, mining, electric power, cities, and families. A gas filter is an indispensable device on the pipeline for transporting the medium, usually installed at the inlet end of a pressure reducing valve, a pressure relief valve, a positioning valve or other equipment to remove impurities in the medium to protect the normal use of valves and equipment.

[0003] At present, in the urban gas system of our country, the pointer differential pressure gauge, the key monitoring device of the gas filter, occupies more than 95% of the market share. These devices are mainly used to monitor the pressure difference between the inlet and the outlet of the filter. However, they highly rely on manual on-site reading of the pointer value on the dashboard to evaluate the differential pressure condition. This method is not only inefficient but also difficult to immediately capture abnormal fluctuations, posing challenges to safety supervision.

[0004] In addition, the existing detection alarm devices are generally directly installed on the gas filter by means of bolt fastening. Although this design is stable, it shows inconveniences in actual operation. Specifically, when the detection alarm device needs to be replaced or maintained due to a fault, its complex disassembly process increases the work difficulty, thereby affecting the continuous monitoring ability of the pressure state of the gas filter. This limitation not only reduces the operability of the device but also may cause potential safety risks due to monitoring interruption. Content of the Utility Model

[0005] The purpose of the utility model is to provide a differential pressure alarm device for a gas filter to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A differential pressure alarm device for a gas filter, including a gas filter body, a sealing cover is arranged on the top of the gas filter body, a fixing bolt movably penetrates through the top of the sealing cover, a connecting inlet pipeline movably penetrates through the outer wall of the gas filter body and is located on one side, a connecting outlet pipeline movably penetrates through the outer wall of the gas filter body and is located on the other side, a pressure transmitter is fixedly installed on the outer surface of the gas filter body; a disassembly and assembly alarm component, the disassembly and assembly alarm component is arranged above the pressure transmitter; the disassembly and assembly alarm component includes: a first disassembly and assembly part, the first disassembly and assembly part is arranged on the outer wall of the gas filter body; a second disassembly and assembly part, the second disassembly and assembly part is arranged above the pressure transmitter and is located on one side of the first disassembly and assembly part.

[0007] Preferably, a first pressure pipe is connected to the bottom of the pressure transmitter, and the other end of the first pressure pipe is connected to the inside of the connecting outlet pipe. A second pressure pipe is connected to the bottom of the pressure transmitter, and the other end of the second pressure pipe is connected to the inside of the connecting inlet pipe. A valve is movably sleeved on the outer wall of the second pressure pipe, and there are two groups in total, respectively located on the outer walls of the first pressure pipe and the second pressure pipe.

[0008] Preferably, the first disassembly and assembly part includes: a mounting base, which is fixedly installed on the outer surface of the gas filter body; a special-shaped mounting groove is formed on one side of the mounting base, and a special-shaped clamping block is clamped inside the special-shaped mounting groove. A fixing hole is formed on the top of the mounting base, and the fixing hole movably penetrates through the special-shaped clamping block and extends to the bottom of the mounting base. A mounting plate is fixedly installed on the outer surface of the special-shaped clamping block.

[0009] Preferably, an L-shaped mounting chute is formed on one side of the mounting plate, and an alarm body is fixedly installed inside the L-shaped mounting chute. A transmission line is connected to the bottom of the alarm body, and the other end of the transmission line is connected to the top of the pressure transmitter.

[0010] Preferably, a fixing screw rod is arranged inside the fixing hole, and a circular fixing cap one is threadedly connected to the top of the fixing screw rod, located on the top of the mounting base.

[0011] Preferably, a circular fixing cap two is threadedly connected to the bottom of the fixing screw rod, located at the bottom of the mounting base. By providing the circular fixing cap one, the circular fixing cap two, and the fixing screw rod, the purpose of strengthening the special-shaped clamping block and the special-shaped mounting groove is achieved.

[0012] Preferably, the second disassembly and assembly part includes: a mounting seat, which is fixedly installed on the outer wall of the mounting base; a mounting long plate, which is fixedly installed on the outer wall of the mounting plate; an arc-shaped mounting groove is formed on one side of the mounting seat, and a special-shaped clamping block one is arranged inside the arc-shaped mounting groove. A fitting groove is formed on the inner side of the special-shaped clamping block one, and a special-shaped clamping block two is arranged inside the fitting groove, and the special-shaped clamping block two is adapted to the special-shaped clamping block one.

[0013] Preferably, a fixing pin movably penetrates through the outer wall of the special-shaped clamping block one, and the fixing pin movably penetrates through the special-shaped clamping block two and extends to the other side of the special-shaped clamping block one. Two springs are fixedly installed at the bottom of the special-shaped clamping block one, and the other ends of the springs are fixedly installed on the outer surface of the mounting seat. A self-locking circular block is arranged on one side of the mounting long plate, and a mounting hole is formed on the other side of the mounting long plate, and a mounting bolt is fixedly installed inside the mounting hole.

[0014] The utility model provides a gas filter differential pressure alarm device, which has the following beneficial effects:

[0015] (1) The utility model monitors the gas filter body by providing a pressure transmitter, a pressure tube 1 and a pressure tube 2. When the differential pressure inside the gas filter body changes, the pressure transmitter transmits a signal to the alarm body through the mounting plate to perform an alarm. The alarm body is installed inside the L-shaped mounting groove by providing a mounting base. The mounting plate is pushed so that the mounting long plate drives the self-locking circular block to be squeezed forward. The special-shaped clamp block 1 and the special-shaped clamp block 2 cooperate with the fixing pin and the spring to open so that the pressure tube 1 locks the self-locking circular block, which is used to initially fix the mounting base and the mounting plate, so as to achieve the effect of facilitating timely alarm reminders and disassembly and assembly of the alarm body.

[0016] (2) The utility model is provided with a mounting seat, a special-shaped clamping block is engaged with the inside of the special-shaped mounting groove, a fixed threaded rod is extended into the inside of the fixing hole, and a circular fixing cap 1 and a circular fixing cap 2 are rotated to reinforce the mounting base and the mounting plate. When disassembling, the circular fixing cap 1 and the circular fixing cap 2 are rotated to make the fixed threaded rod disengage from the fixing hole, and the mounting plate and the mounting base are separated, so that it is convenient to detect and repair the alarm body, thereby achieving the effect of facilitating the disassembly and assembly of the alarm body and the maintenance of the alarm body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a top view of the structure of a gas filter differential pressure alarm device of the utility model;

[0019] Figure 3 This is a structural exploded view of the installation location of a gas filter differential pressure alarm device of the utility model;

[0020] Figure 4 The utility model is a side view of the structure of the reinforced part of a differential pressure alarm device for a gas filter.

[0021] In the figure: 1 gas filter body, 11 sealing cover, 12 fixing bolt, 2 connecting intake pipeline, 3 connecting outlet pipeline, 4 pressure transmitter, 5 pressure pipe one, 6 pressure pipe two, 7 valve, 8 disassembly and assembly alarm component, 81 disassembly and assembly part one, 811 installation base, 812 special-shaped installation groove, 813 special-shaped clamping block, 814 fixing hole, 815 installation plate, 816 L-shaped installation chute, 817 alarm body, 818 transmission line, 819 fixing threaded rod, 8110 circular fixing cap one, 8111 circular fixing cap two, 82 disassembly and assembly part two, 821 installation seat, 822 arc-shaped installation groove, 823 special-shaped clamping block one, 824 fitting groove, 825 special-shaped clamping block two, 826 fixing pin, 827 spring, 828 installation long plate, 829 self-locking circular block, 8210 installation bolt. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] Embodiment 1

[0025] A preferred embodiment of the differential pressure alarm device for a gas filter provided by the present invention is as Figures 1-4 shown: A differential pressure alarm device for a gas filter includes a gas filter body 1. A sealing cover 11 is arranged on the top of the gas filter body 1. A fixing bolt 12 movably penetrates through the top of the sealing cover 11. A connecting intake pipeline 2 movably penetrates through the outer wall of the gas filter body 1 and is located on one side. A connecting outlet pipeline 3 movably penetrates through the outer wall of the gas filter body 1 and is located on the other side. A pressure transmitter 4 is fixedly installed on the outer surface of the gas filter body 1; a disassembly and assembly alarm component 8 is arranged above the pressure transmitter 4; the disassembly and assembly alarm component 8 includes: a disassembly and assembly part one 81, which is arranged on the outer wall of the gas filter body 1; a disassembly and assembly part two 82, which is arranged above the pressure transmitter 4 and is located on one side of the disassembly and assembly part one 81.

[0026] The bottom of the pressure transmitter 4 is connected with a first pressure pipe 5, and the other end of the first pressure pipe 5 is connected and arranged inside the connecting outlet pipe 3. The bottom of the pressure transmitter 4 is connected with a second pressure pipe 6, and the other end of the second pressure pipe 6 is connected and arranged inside the connecting inlet pipe 2. The outer wall of the second pressure pipe 6 is movably sleeved with valves 7, and there are two groups in total, which are respectively located on the outer walls of the first pressure pipe 5 and the second pressure pipe 6.

[0027] The first disassembly and assembly part 81 includes: a mounting base 811, and the mounting base 811 is fixedly installed on the outer surface of the gas filter body 1; a special-shaped mounting groove 812 is opened on one side of the mounting base 811, and a special-shaped clamping block 813 is arranged inside the special-shaped mounting groove 812 through clamping. A fixing hole 814 is opened on the top of the mounting base 811, and the fixing hole 814 movably penetrates through the special-shaped clamping block 813 and extends to the bottom of the mounting base 811. An installation plate 815 is fixedly installed on the outer surface of the special-shaped clamping block 813.

[0028] An L-shaped installation chute 816 is opened on one side of the installation plate 815, and an alarm body 817 is fixedly installed inside the L-shaped installation chute 816. The bottom of the alarm body 817 is connected with a transmission line 818, and the other end of the transmission line 818 is connected and arranged on the top of the pressure transmitter 4.

[0029] A fixing threaded rod 819 is arranged inside the fixing hole 814, and a circular fixing cap one 8110 is arranged at the top of the fixing threaded rod 819 through threaded connection, and is located on the top of the mounting base 811.

[0030] A circular fixing cap two 8111 is arranged at the bottom of the fixing threaded rod 819 through threaded connection, and is located at the bottom of the mounting base 811. By arranging the circular fixing cap one 8110, the circular fixing cap two 8111 and the fixing threaded rod 819, the purpose of strengthening the connection between the special-shaped clamping block 813 and the special-shaped mounting groove 812 is achieved.

[0031] Furthermore, in this embodiment, the gas filter body 1 is monitored by arranging the pressure transmitter 4, the first pressure pipe 5 and the second pressure pipe 6. When the differential pressure inside the gas filter body 1 changes, the pressure transmitter 4 transmits the signal to the alarm body 817 through the installation plate 815 for alarm work.

[0032] Furthermore, by arranging the mounting base 811, the alarm body 817 is installed inside the L-shaped installation chute 816. Push the installation plate 815, so that the installation long plate 828 drives the self-locking circular block 829 to squeeze forward. The special-shaped clamping block one 823 and the special-shaped clamping block two 825 cooperate with the fixing pin 826 and the spring 827 to open, so that the first pressure pipe 5 locks the self-locking circular block 829, which is used to initially fix the mounting base 811 and the installation plate 815, facilitating timely alarm reminder and disassembly and assembly of the alarm body 817.

[0033] Example 2

[0034] On the basis of Embodiment 1, a preferred embodiment of a differential pressure alarm device for a gas filter provided by the present utility model is as follows Figures 1-4 shown: The disassembly and assembly part two 82 includes: a mounting base 821, which is fixedly installed on the outer wall of the mounting base 811; a mounting long plate 828, which is fixedly installed on the outer wall of the mounting plate 815; an arc-shaped mounting groove 822 is opened on one side of the mounting base 821, an irregular clamping block one 823 is arranged inside the arc-shaped mounting groove 822, a fitting groove 824 is opened on the inner side of the irregular clamping block one 823, and an irregular clamping block two 825 is arranged inside the fitting groove 824, and the irregular clamping block two 825 is adapted to the irregular clamping block one 823.

[0035] A fixing pin 826 movably penetrates through the outer wall of the irregular clamping block one 823, and the fixing pin 826 movably penetrates through the irregular clamping block two 825 and extends to the other side of the irregular clamping block one 823. A spring 827 is fixedly installed at the bottom of the irregular clamping block one 823, and there are two groups in total. The other end of the spring 827 is fixedly installed on the outer surface of the mounting base 821. A self-locking circular block 829 is arranged on one side of the mounting long plate 828, and a mounting hole is opened on the other side of the mounting long plate 828, and a mounting bolt 8210 is fixedly installed inside the mounting hole.

[0036] Furthermore, in this embodiment, by providing a mounting base 821, after preliminary fixation, at the same time, the irregular clamping block 813 is engaged inside the irregular mounting groove 812. Further, the fixing threaded rod 819 extends into the fixing hole 814, and the circular fixing cap one 8110 and the circular fixing cap two 8111 are rotated to reinforce the mounting base 811 and the mounting plate 815.

[0037] Furthermore, when disassembling, rotate the circular fixing cap one 8110 and the circular fixing cap two 8111 to disengage the fixing threaded rod 819 from the fixing hole 814, and separate the mounting plate 815 and the mounting base 811, which is convenient for disassembling and assembling the alarm body 817 and repairing the alarm body 817.

[0038] In use, first, the gas filter body 1 is monitored through the pressure transmitter 4, the first pressure pipe 5, and the second pressure pipe 6. When the differential pressure inside the gas filter body 1 changes, the pressure transmitter 4 transmits a signal to the alarm body 817 through the mounting plate 815 for alarm work. Further, through the provided mounting base 811, the alarm body 817 is installed inside the L-shaped mounting chute 816. Push the mounting plate 815 so that the mounting long plate 828 drives the self-locking circular block 829 to squeeze forward, and the first special-shaped clamping block 823 and the second special-shaped clamping block 825 cooperate with the fixing pin 826 and the spring 827 to open, so that the first pressure pipe 5 locks the self-locking circular block 829 for initially fixing the mounting base 811 and the mounting plate 815. Further, in this embodiment, through the provided mounting seat 821, after the initial fixing is completed, at the same time, the special-shaped clamping block 813 is engaged inside the special-shaped mounting groove 812. Further, the fixing threaded rod 819 extends into the fixing hole 814, and the circular fixing cap one 8110 and the circular fixing cap two 8111 are rotated to reinforce the mounting base 811 and the mounting plate 815. Further, when disassembling, rotate the circular fixing cap one 8110 and the circular fixing cap two 8111 to make the fixing threaded rod 819 disengage from the fixing hole 814, and separate the mounting plate 815 and the mounting base 811, which is convenient for disassembling and assembling the alarm body 817 and repairing the alarm body 817.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A differential pressure alarm device for a gas filter, comprising a gas filter body (1), characterized in that: A sealing cover (11) is provided at the top of the gas filter body (1). A fixing bolt (12) passes through the top of the sealing cover (11) movably. A connecting intake pipe (2) passes through the outer wall of the gas filter body (1) movably and is located on one side. A connecting outlet pipe (3) passes through the outer wall of the gas filter body (1) movably and is located on the other side. A pressure transmitter (4) is fixedly installed on the outer surface of the gas filter body (1). Disassemble and assemble the alarm component (8). The disassemble and assemble alarm component (8) is arranged above the pressure transmitter (4). The disassemble and assemble alarm component (8) includes: Disassembling and assembling part one (81). The disassembling and assembling part one (81) is arranged on the outer wall of the gas filter body (1). Disassembling and assembling part two (82). The disassembling and assembling part two (82) is arranged above the pressure transmitter (4), and the disassembling and assembling part two (82) is located on one side of the disassembling and assembling part one (81).

2. The differential pressure alarm device for a gas filter according to claim 1, wherein: A pressure pipe one (5) is communicated and arranged at the bottom of the pressure transmitter (4), and the other end of the pressure pipe one (5) is communicated and arranged inside the connecting outlet pipe (3). A pressure pipe two (6) is communicated and arranged at the bottom of the pressure transmitter (4), and the other end of the pressure pipe two (6) is communicated and arranged inside the connecting intake pipe (2). A valve (7) is movably sleeved on the outer wall of the pressure pipe two (6), and there are two groups in total, which are respectively located on the outer walls of the pressure pipe one (5) and the pressure pipe two (6).

3. The differential pressure alarm device for a gas filter according to claim 1, characterized in that: The disassembling and assembling part one (81) includes: An installation base (811). The installation base (811) is fixedly installed on the outer surface of the gas filter body (1). A special-shaped installation groove (812) is formed on one side of the installation base (811). A special-shaped clamping block (813) is clamped inside the special-shaped installation groove (812). A fixing hole (814) is formed at the top of the installation base (811), and the fixing hole (814) passes through the special-shaped clamping block (813) movably and extends to the bottom of the installation base (811). An installation plate (815) is fixedly installed on the outer surface of the special-shaped clamping block (813).

4. The differential pressure alarm device for a gas filter according to claim 3, wherein: An L-shaped installation sliding groove (816) is formed on one side of the installation plate (815). An alarm body (817) is fixedly installed inside the L-shaped installation sliding groove (816). A transmission line (818) is communicated and arranged at the bottom of the alarm body (817), and the other end of the transmission line (818) is communicated and arranged at the top of the pressure transmitter (4).

5. The differential pressure alarm device for a gas filter according to claim 4, characterized in that: A fixing threaded rod (819) is arranged inside the fixing hole (814). A circular fixing cap one (8110) is connected to the top of the fixing threaded rod (819) by thread and is located on the top of the installation base (811).

6. The differential pressure alarm device for a gas filter according to claim 5, wherein: A circular fixing cap two (8111) is connected to the bottom of the fixing threaded rod (819) by thread and is located at the bottom of the installation base (811).

7. A differential pressure alarm device for a gas filter according to claim 1, characterized in that: The disassembling and assembling part two (82) includes: An installation seat (821). The installation seat (821) is fixedly installed on the outer wall of the installation base (811). Install the long installation board (828), and the long installation board (828) is fixedly installed on the outer wall of the installation board (815); An arc-shaped installation groove (822) is formed on one side of the installation seat (821). An irregular clamping block one (823) is arranged inside the arc-shaped installation groove (822). A fitting groove (824) is formed inside the irregular clamping block one (823). An irregular clamping block two (825) is arranged inside the fitting groove (824), and the irregular clamping block two (825) is adapted to the irregular clamping block one (823).

8. The differential pressure alarm device for a gas filter according to claim 7, wherein: A fixing pin (826) movably penetrates through the outer wall of the irregular clamping block one (823), and the fixing pin (826) movably penetrates through the irregular clamping block two (825) and extends to the other side of the irregular clamping block one (823). Two springs (827) are fixedly installed at the bottom of the irregular clamping block one (823). The other ends of the springs (827) are fixedly installed on the outer surface of the installation seat (821). A self-locking circular block (829) is arranged on one side of the long installation board (828). An installation hole is formed on the other side of the long installation board (828), and an installation bolt (8210) is fixedly installed inside the installation hole.

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