Petrochemical gas leakage early warning device

Abstract

The utility model relates to the technical field of petrochemical engineering gas leakage detection, and discloses a petrochemical engineering gas leakage early warning device which comprises a movable cart, a supporting pipe frame is fixedly installed on the top side of the movable cart, an air suction pipe is fixedly installed on the supporting pipe frame, an exhaust fan is fixedly installed on the top side of the movable cart, and the exhaust fan is fixedly installed on the top side of the movable cart. The air suction end of the exhaust fan communicates with an air suction pipe, a mounting frame is fixedly mounted in the air suction pipe, and a gas leakage detection mechanism used for the mounting frame is arranged on the air suction pipe. According to the utility model, the audible and visual alarm generates an audible and visual alarm signal to perform an audible and visual early warning effect on surrounding personnel, the disc, the connecting rod and the brush plate are pushed to enable the brush end of the brush plate to abut against one side of the filter screen, and the disc, the connecting rod and the brush plate are screwed, so that the working efficiency is improved. Impurities and fixed particles attached to the surface of the filter screen can be cleaned by adjusting the rotating brush plate, and the filtering efficiency of the filter screen is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum chemical industry gas leakage detection technical field especially relates to a petroleum chemical industry gas leakage early warning device. BACKGROUND

[0002] Petroleum chemical industry, short for petrochemical industry, generally refers to the chemical industry taking petroleum and natural gas as raw materials, which is very wide in range and has many products; crude oil is cracked (cracked), reformed and separated to provide basic raw materials such as ethylene, propylene, butene, butadiene, benzene, toluene, xylene, naphthalene, etc., and gas is generally transmitted through pipelines, which poses a great threat to people's life and property safety due to its flammable and explosive characteristics, therefore, it is necessary to detect gas leakage.

[0003] The prior art gas leakage detection device for petrochemical engineering (its authorized announcement number is CN217305057U) is convenient for detecting petroleum chemical industry gas through a large suction head and a telescopic small suction pipe, but the filter screen in the air inlet pipe will be attached with impurities and solid particles in petroleum chemical industry gas on the surface during long-time use, thereby reducing the filtering efficiency of the filter screen; at the same time, the petroleum chemical industry gas sucked in the telescopic small suction pipe has not been filtered by the filter screen, so that the petroleum chemical industry gas in the telescopic small suction pipe cannot be filtered, which easily causes the impurities and solid particles in the petroleum chemical industry gas to enter the cavity of the detection device, and it is inconvenient to clean the impurities and solid particles sucked in the cavity of the detection device; therefore, the petroleum chemical industry gas leakage early warning device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a petroleum chemical industry gas leakage early warning device to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of petroleum chemical gas leakage early warning device, including mobile cart, the top side of mobile cart is fixedly installed with support pipe frame, support pipe frame is fixedly installed with suction pipe, the top side of mobile cart is fixedly installed with suction fan, the suction end of suction fan is communicated with suction pipe, suction pipe is fixedly installed with mounting bracket in, suction pipe is provided with gas leakage detection mechanism for mounting bracket, the top side of support pipe frame is fixedly installed with sound-light alarm, the top side of mobile cart is provided with controller, the inner wall of the air inlet end of suction pipe is provided with filter screen, the air inlet end of suction pipe is provided with first suction head, the first suction head is provided with air vent plate, the side of air vent plate is fixedly installed with side column, the one end of side column is provided with slot, air vent plate and side column are provided with cleaning mechanism for filter screen, the first suction head is provided with installation circular groove, the first suction head is provided with first sealing mechanism for cleaning mechanism in, one end of the flexible hose connected with first suction head, the other end of flexible hose is provided with second suction head, the first suction head is provided with rotation groove, and the second suction head is provided with second sealing mechanism in.

[0007] Preferably, the gas leakage detection mechanism includes a gas leakage detector and a leakage detection probe, the outer wall of the suction pipe is provided with a gas leakage detector, and the leakage detection probe at one end of the detection hose on the gas leakage detector extends into the suction pipe and is fixedly installed on the mounting bracket. The petroleum chemical gas sucked into the suction pipe is detected by the leakage detection probe on the gas leakage detector. When petroleum chemical gas leakage is detected, the gas leakage detector transmits a signal to the controller.

[0008] Preferably, the gas leakage detector and the controller are electrically connected, and the sound-light alarm and the controller are electrically connected. The controller transmits a control signal to the sound-light alarm, and the sound-light alarm generates a sound-light alarm signal to perform a sound-light warning effect on the surrounding personnel.

[0009] Preferably, the cleaning mechanism includes a disc, a connecting rod, a plug, a brush plate and a spring, the outer side of the air vent plate is provided with a disc, one side of the disc is fixedly installed with one end of the connecting rod, the other end of the connecting rod is movably extended into the first suction head and fixedly installed with a brush plate, the brush plate is located on one side of the filter screen, the connecting rod is provided with a plug, the plug is movably inserted into the slot at one end of the side column, and the spring is placed between the disc and the air vent plate. When the disc and the connecting rod are pushed, the brush end of the brush plate is abutted on one side of the filter screen, the disc, the connecting rod and the brush plate are twisted, and the impurities and fixed particles attached to the surface of the filter screen can be cleaned by adjusting the rotating brush plate.

[0010] Preferably, the first sealing mechanism comprises a connecting frame and a sealing plate, the connecting frame is fixedly installed on the connecting rod, and the sealing plate is fixedly installed on the connecting frame; the sealing plate is movably inserted into the vent plate, and a rubber layer is arranged on the part of the sealing plate in contact with the vent plate.

[0011] Preferably, the second sealing mechanism comprises a sealing ring, a circular opening and a side block, the sealing ring is rotatably installed in the rotating groove of the first air suction head, the circular opening is formed in the sealing ring, the flexible hose is connected to the first air suction head through the circular opening, a rubber layer is arranged on the part of the sealing ring in contact with the inner wall of one side of the rotating groove of the first air suction head, and the side block is fixedly installed on the outer side wall of the sealing ring.

[0012] The utility model discloses beneficial effect is:

[0013] 1、 the petroleum chemical gas leakage early warning device, through starting the air draught fan, the petroleum chemical gas is into to the air suction pipe in the first air suction head, and the leakage detection probe on the gas leakage detector carries out the detection to the petroleum chemical gas inhaled to the air suction pipe, when detecting that there is petroleum chemical gas leakage, the gas leakage detector passes to the controller with the control signal transmission to the audible -visual alarm, and the audible -visual alarm produces audible -visual alarm signal, and the surrounding personnel are carried out audible -visual early warning effect, and through the disc, the connecting rod and the brush plate are pushed, and the brush end of the brush plate is resisted at one side of the filter screen, and the disc, the connecting rod and the brush plate are screwed, and the brush plate of adjusting rotation can realize the cleaning of the impurity and fixed particle adhered to the surface of the filter screen, and guarantee the filtering efficiency of the filter screen.

[0014] 2、 the petroleum chemical gas leakage early warning device, through the filter screen in the air suction pipe, the petroleum chemical gas in the smaller space or the space big area can be filtered into the air suction pipe, and the impurity and fixed particle in the petroleum chemical gas are reduced and enter the air suction pipe and appear the problem that is inconvenient to clean. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the three-dimensional partial section view of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the three-dimensional partial section view of the utility model; Figure 1

[0017] Figure 3 It is the structure schematic diagram of the three-dimensional partial section view of the utility model;

[0018] Figure 4 ​It is a structure schematic view of the first suction head of the utility model partially sectioned.

[0019] Figure 5 It is a structure schematic view of the sealing ring partially sectioned.

[0020] Figure 6 It is a structure schematic view of the ventilation opening plate and the sealing plate coinciding view angle.

[0021] In the figure: 1, mobile trolley; 2, support pipe frame; 3, suction pipe; 4, exhaust fan; 5, mounting frame; 6, gas leakage detector; 7, leakage detection probe; 8, audible and visual alarm; 9, controller; 10, filter screen; 11, first suction head; 12, ventilation opening plate; 13, side column; 14, slot; 15, disc; 16, connecting rod; 17, plug block; 18, brush plate; 19, spring; 20, mounting circular groove; 21, connecting frame; 22, sealing plate; 23, flexible hose; 24, second suction head; 25, rotating groove; 26, sealing ring; 27, round opening; 28, side block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] REFERENCE Figures 1-6The utility model relates to a kind of petroleum chemical gas leakage early warning device, including mobile cart 1, support pipe frame 2 is fixedly installed on the top side of mobile cart 1, suction pipe 3 is fixedly installed on support pipe frame 2, suction fan 4 is fixedly installed on the top side of mobile cart 1, the suction end of suction fan 4 is communicated with suction pipe 3, mounting bracket 5 is fixedly installed in suction pipe 3, gas leakage detection mechanism for mounting bracket 5 is provided on suction pipe 3, sound-light alarm 8 is fixedly installed on the top side of support pipe frame 2, controller 9 is provided on the top side of mobile cart 1, filter screen 10 is provided on the inner wall of the air inlet end of suction pipe 3, first suction head 11 is provided on the air inlet end of suction pipe 3, ventilation opening plate 12 is provided in first suction head 11, side column 13 is fixedly installed on one side of ventilation opening plate 12, slot 14 is formed in one end of side column 13, cleaning mechanism for filter screen 10 is provided on ventilation opening plate 12 and side column 13, mounting circular groove 20 is formed in first suction head 11, first sealing mechanism for cleaning mechanism is provided in mounting circular groove 20, one end of telescopic hose 23 is connected to first suction head 11, second suction head 24 is provided on the other end of telescopic hose 23, rotation groove 25 is formed in first suction head 11, second sealing mechanism is provided in rotation groove 25.

[0024] Further, gas leakage detection mechanism includes gas leakage detector 6 and leakage detection probe 7, gas leakage detector 6 is provided on the outer wall of suction pipe 3, leakage detection probe 7 on the one end of detection hose of gas leakage detector 6 extends into suction pipe 3 and is fixedly installed on mounting bracket 5, petroleum chemical gas inhaled into suction pipe 3 is detected by leakage detection probe 7 on gas leakage detector 6, when detecting that petroleum chemical gas leaks, gas leakage detector 6 passes signal to controller 9.

[0025] Specifically, gas leakage detector 6 and controller 9 are electrically connected, sound-light alarm 8 and controller 9 are electrically connected;Controller 9 passes control signal to sound-light alarm 8, and sound-light alarm 8 generates sound-light alarm signal, and sound-light prewarning effect is carried out to surrounding personnel.

[0026] Further, the cleaning mechanism comprises the disc 15, the connecting rod 16, the plug 17, the brush plate 18 and the spring 19, the outer side of the air vent plate 12 is provided with the disc 15, one side of the disc 15 is fixedly installed with one end of the connecting rod 16, the other end of the connecting rod 16 is movably extended into the first air suction head 11 and is fixedly installed with the brush plate 18, the brush plate 18 is located at one side of the filter screen 10, the connecting rod 16 is provided with the plug 17, the plug 17 is movably inserted into the slot 14 at one end of the side column 13, and the spring 19 is placed between the disc 15 and the air vent plate 12 in abutment; when the disc 15 and the connecting rod 16 are pushed, the brush end of the brush plate 18 is abutted at one side of the filter screen 10, the disc 15, the connecting rod 16 and the brush plate 18 are screwed, and the brush plate 18 can be rotated to clean the impurities and fixed particles attached to the surface of the filter screen 10.

[0027] Further, the first sealing mechanism comprises the connecting frame 21 and the sealing plate 22, the connecting rod 16 is fixedly installed with the connecting frame 21, the connecting frame 21 is fixedly installed with the sealing plate 22, the sealing plate 22 is movably inserted into the air vent plate 12, and the part of the sealing plate 22 in contact with the air vent plate 12 is provided with a rubber layer; the first sealing mechanism can seal the air suction end of the first air suction head 11.

[0028] Further, the second sealing mechanism comprises the sealing ring 26, the round opening 27 and the side block 28, the rotating groove 25 of the first air suction head 11 is rotatably installed with the sealing ring 26, the sealing ring 26 is provided with the round opening 27, the flexible hose 23 is connected with the first air suction head 11 through the round opening 27, the part of the sealing ring 26 in contact with the inner wall of one side of the rotating groove 25 of the first air suction head 11 is provided with a rubber layer, and the outer side wall of the sealing ring 26 is fixedly installed with the side block 28; the second sealing mechanism can seal one end of the flexible hose 23.

[0029] In use: by rotating the side block 28 on the sealing ring 26, the round opening 27 on the sealing ring 26 is communicated with the flexible hose 23; when the second suction head 24 is inserted into a smaller space for oil and chemical gas leakage detection, the oil and chemical gas in the smaller space is sucked into the suction pipe 3 through the flexible hose 23, the first suction head 11 and the filter screen 10 in the suction pipe 3, and is detected by the leakage detection probe 7 on the gas leakage detector 6; when the oil and chemical gas leakage is detected, the gas leakage detector 6 transmits a signal to the controller 9, the controller 9 transmits a control signal to the sound and light alarm 8, and the sound and light alarm 8 generates a sound and light alarm signal to give a sound and light warning to the surrounding personnel; when the oil and chemical gas leakage in a larger space is detected, the sealing ring 26 is rotated to seal the flexible hose 23, and then the disc 15 is pushed to make the plug block 17 on the connecting rod 16 separate from the slot 14 at one end of the side column 13, so that the sealing plate 22 separates from the air vent plate 12; at this time, the spring 19 is stressed to generate deformation and compression, and then the disc 15, the connecting rod 16, the plug block 17, the brush plate 18, the connecting frame 21 and the sealing plate 22 are rotated to make the sealing plate 22 rotate to the back side of the air vent plate 12, and then the disc 15 is loosened; under the elastic force of the spring 19, the sealing plate 22 is fixed and coincides with the back side of the air vent plate 12; at this time, the air vent of the air vent plate 12 on the first suction head 11 is opened, and the oil and chemical gas leakage in the larger space is detected by starting the air extractor 4 again; the impurities and fixed particles in the oil and chemical gas sucked into the suction pipe 3 can be filtered through the filter screen 10 in the suction pipe 3, so as to reduce the impurities and fixed particles in the oil and chemical gas entering the suction pipe 3 and the problem of inconvenience in cleaning; when the impurities and fixed particles attached to the surface of the filter screen 10 need to be cleaned, the disc 15, the connecting rod 16 and the brush plate 18 are pushed to make the brush end of the brush plate 18 abut against one side of the filter screen 10, and the disc 15, the connecting rod 16 and the brush plate 18 are screwed; the impurities and fixed particles attached to the surface of the filter screen 10 can be cleaned by adjusting the rotating brush plate 18, so as to ensure the filtering efficiency of the filter screen 10.

[0030] It should be noted that the relational terms herein such as first and second are used only to differentiate one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between them. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A petrochemical gas leakage early warning device comprising a mobile cart (1), characterized in that, The top side of the mobile cart (1) is fixedly installed with a support pipe frame (2), the support pipe frame (2) is fixedly installed with a suction pipe (3), the top side of the mobile cart (1) is fixedly installed with an air extractor (4), the air extraction end of the air extractor (4) is communicated with the suction pipe (3), the suction pipe (3) is fixedly installed with a mounting bracket (5), the suction pipe (3) is provided with a gas leakage detection mechanism for the mounting bracket (5), the top side of the support pipe frame (2) is fixedly installed with a sound-light alarm (8), the top side of the mobile cart (1) is provided with a controller (9), the inner wall of the air inlet end of the suction pipe (3) is provided with a filter screen (10), the air inlet end of the suction pipe (3) is provided with a first suction head (11), the first suction head (11) is provided with a ventilation opening plate (12), one side of the ventilation opening plate (12) is fixedly installed with a side column (13), one end of the side column (13) is provided with a slot (14), the ventilation opening plate (12) and the side column (13) are provided with a cleaning mechanism for the filter screen (10), the first suction head (11) is provided with a mounting circular groove (20), the mounting circular groove (20) is provided with a first sealing mechanism for the cleaning mechanism, one end of the first suction head (11) is connected with a flexible hose (23), the other end of the flexible hose (23) is provided with a second suction head (24), the first suction head (11) is provided with a rotating groove (25), the rotating groove (25) is provided with a second sealing mechanism.

2. The petroleum chemical gas leakage early warning device according to claim 1, characterized in that, The gas leakage detection mechanism comprises a gas leakage detector (6) and a leakage detection probe (7), the outer side wall of the suction pipe (3) is provided with a gas leakage detector (6), the leakage detection probe (7) at one end of the detection hose on the gas leakage detector (6) extends into the suction pipe (3) and is fixedly installed on the mounting bracket (5).

3. The petroleum chemical gas leakage early warning device according to claim 2, characterized in that, The gas leakage detector (6) and the controller (9) are electrically connected, and the sound-light alarm (8) and the controller (9) are electrically connected.

4. The petroleum chemical gas leakage early warning device according to claim 1, characterized in that, The cleaning mechanism comprises a disc (15), a connecting rod (16), a plug (17), a brush plate (18) and a spring (19), the outer side of the ventilation opening plate (12) is provided with a disc (15), one side of the disc (15) is fixedly installed with one end of the connecting rod (16), the other end of the connecting rod (16) is movably extended into the first suction head (11) and is fixedly installed with a brush plate (18), the brush plate (18) is located on one side of the filter screen (10), the connecting rod (16) is provided with a plug (17), the plug (17) is movably inserted into the slot (14) at one end of the side column (13), and the spring (19) is placed between the disc (15) and the ventilation opening plate (12).

5. The petroleum chemical gas leakage early warning device according to claim 4, characterized in that, The first sealing mechanism comprises a connecting frame (21) and a sealing plate (22), the connecting rod (16) is fixedly provided with the connecting frame (21), the connecting frame (21) is fixedly provided with the sealing plate (22), the sealing plate (22) is movably inserted into the ventilation opening plate (12), and the part, which is in contact with the ventilation opening plate (12), of the sealing plate (22) is provided with a rubber layer.

6. The petroleum chemical gas leakage early warning device according to claim 1, characterized in that, The second sealing mechanism comprises a sealing ring (26), a circular opening (27) and a side block (28), the rotating groove (25) of the first air suction head (11) is rotatably provided with the sealing ring (26), the sealing ring (26) is provided with the circular opening (27), the flexible hose (23) is connected with the first air suction head (11) through the circular opening (27), the part, which is in contact with the inner wall of one side of the rotating groove (25) of the first air suction head (11), of the sealing ring (26) is provided with a rubber layer, and the outer side wall of the sealing ring (26) is fixedly provided with the side block (28).

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