CN220354530U - Pipeline safety steering device for maintaining chemical gas pipeline - Google Patents

Abstract

The utility model provides a pipeline safety steering device for maintaining a chemical gas pipeline, which comprises a protective shell, wherein four mounting holes are symmetrically formed in the front end face and the rear end face of the protective shell, a main air pipe penetrates through two mounting holes in the front end face and the rear end face of the left side and is inserted into the protective shell, an auxiliary air pipe penetrates through two mounting holes in the front end face and the rear end of the right side and is inserted into the protective shell, a three-way valve is arranged at the inner part of the protective shell, a connecting pipe is connected between the two three-way valves, a first gas detector is arranged on the connecting pipe, a controller is arranged in the protective shell and is in signal connection with the first gas detector, the left end and the right end of the protective shell are of a detachable structure, and lifting supporting legs are arranged at the bottom of the protective shell. The utility model solves the problems that the air pipe can not be used and the production time is wasted in the maintenance process.

Description

Pipeline safety steering device for maintaining chemical gas pipeline

Technical Field

The utility model relates to the technical field of pipeline maintenance, in particular to a pipeline safety steering device for chemical gas pipeline maintenance.

Background

The chemical products are mostly manufactured by adopting the principle that chemical gases are contacted with objects to generate chemical reactions, so that the demand of the chemical gases is extremely large, and a large number of gas pipelines are arranged in chemical plants for rapidly transporting the chemical gases so as to achieve the purpose of rapid transportation.

At present, after the gas pipeline is used for a long time, the air in the pipeline is easy to block due to the fact that the flow rate is low, so that regular maintenance is needed, but a common air pipe can be maintained after a valve is closed during maintenance, so that the air pipe cannot be used in the maintenance process, and the production time is greatly wasted.

Disclosure of Invention

In order to solve the problems in the prior art, the embodiment of the utility model provides a pipeline safety steering device for maintaining a chemical gas pipeline, four mounting holes (6) are symmetrically formed in the front end face and the rear end face of a protective casing (2), a main gas pipe (1) penetrates through two mounting holes (6) in the front end face and the rear end face on the left side to be inserted into the protective casing (2), a secondary gas pipe (22) penetrates through two mounting holes (6) in the front end face and the rear end on the right side to be inserted into the protective casing (2), three-way valves (9) are arranged on the inner parts of the main gas pipe (1) and the secondary gas pipe (22) which are positioned in the protective casing (2), a connecting pipe (4) is connected between the two three-way valves (9), a first gas detector (5) is arranged on the connecting pipe (4), a controller (3) is arranged in the protective casing (2), the controller (3) is in signal connection with the first gas detector (5) and the two three-way valves (9), and the left end and the right end and the protective casing (2) are in a detachable structure, and lifting support legs are arranged at the bottom of the protective casing (2).

Optionally, main trachea (1) and auxiliary trachea (22) are including protecting inlayer (17) and protecting skin (20), be provided with between protecting inlayer (17) and the protecting skin (20) and detect air chamber (19), and equidistant symmetry installs a plurality of spliced poles (18) between protecting inlayer (17) and the protecting skin (20), second gas detector (7) are installed to the outside of main trachea (1) and auxiliary trachea (22), second gas detector (7) detection end runs through protecting skin (20) and imbeds to the inside that detects air chamber (19), install the bulb on the second gas detector (7) other end to with controller (3) signal connection.

Optionally, the protective outer layer (20) comprises a wear-resistant layer, a heat-insulating layer and a sealing layer from outside to inside, the heat-insulating layer is positioned between the sealing layer and the wear-resistant layer, and the sealing layer is in contact with the detection air chamber (19).

Optionally, sealing strips (15) are arranged on the inner wall of the mounting hole (6) in a fitting mode.

Optionally, both ends detachable construction includes baffle (8) about shell (2), and baffle (8) are provided with the fixed block towards shell (2) one side both ends, and fixed slot (21) have been seted up to the position that shell (2) corresponds the fixed block, and the fixed block can insert inside fixed slot (21), is provided with the screw on the fixed block, and shell (2) front and back both sides equidistant are provided with a plurality of screws (16), and screw (16) run through shell (2) and imbed in the screw.

Optionally, the lift supporting leg includes base (13), the lift groove has been seted up at base (13) middle part, slip in the lift groove is equipped with slide bar (11), slide bar (11) top and shell (2) bottom fixed connection, bolt (10) are installed to up end bilateral symmetry of base (13), fixed orifices (14) have all been seted up to slide bar (11) both sides, in bolt (10) can imbed fixed orifices (14), pulley (12) are installed to slide bar (11) bottom both sides, the spout with pulley (12) looks adaptation has been seted up to the lift inslot wall, the inside of spout is embedded to pulley (12), the anticollision layer is installed to the bottom of shell (2) and is located the periphery of slide bar (11), the anticollision layer is installed to the bottom of lift groove.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the conveying directions of the two three-way valves can be adjusted through remote or manual control, so that after chemical gas is input from the main air pipe, the chemical gas is turned through the two three-way valves and the connecting pipeline after adjustment and finally output from the auxiliary air pipe, and then the main air pipe at the output end can be detached and replaced, and the auxiliary air pipe replaces the main air pipe for transportation during maintenance, so that the problems that the air pipe cannot be used and the production time is wasted in the maintenance process are solved;

(2) According to the utility model, after the base is fixed, the sliding rod is embedded into the base, and after the sliding rod is adjusted to a proper height in a sliding way, the bolt on the upper end surface of the base is adjusted to be embedded into the fixing hole on the sliding rod, so that the fixing is finished, the subsequent horizontal installation of the air pipe is facilitated, and the requirement of installing the air pipe on a concave-convex ground is met;

(3) When the gas pipe is damaged, chemical gas overflows into the inner protective layer through the damaged opening and enters the detection gas chamber, and due to the arrangement of the outer protective layer, the overflowed chemical gas can be wrapped in the outer protective layer in a short time, and the air in the detection gas chamber is continuously detected through the second gas detector, so that after the chemical gas enters, the second gas detector alarms, and maintenance personnel can conveniently and quickly lock the damaged gas pipe and carry out emergency repair or replacement.

Drawings

Embodiments of a pipe safety steering apparatus for chemical gas pipe maintenance according to the present utility model are described below with reference to the accompanying drawings. The attached drawings are as follows:

FIG. 1 is a transverse cross-sectional view of a pipe safety steering device for chemical gas pipe maintenance according to the present utility model;

FIG. 2 is a longitudinal cross-sectional view of a pipeline safety steering device for chemical gas pipeline maintenance provided by the utility model;

FIG. 3 is a cross-sectional view of the primary and secondary air ducts;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

fig. 5 is a partial enlarged view of a portion B in fig. 2.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if there is a directional indication (such as up, down, left, right, front, rear.

Furthermore, if the description of "first," "second," etc. is referred to in this disclosure, it is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The following describes in detail the implementation of the present utility model in connection with specific embodiments:

referring to fig. 1-5, in the pipeline safety steering device for maintaining a chemical gas pipeline provided by the embodiment of the utility model, four mounting holes 6 are symmetrically formed in the front end face and the rear end face of a protective casing 2, a main gas pipe 1 passes through two mounting holes 6 in the front end face and the rear end face on the left side and is inserted into the protective casing 2, an auxiliary gas pipe 22 passes through two mounting holes 6 in the front end face and the rear end on the right side and is inserted into the protective casing 2, a three-way valve 9 is arranged at the inner part of the protective casing 2, a connecting pipe 4 is connected between the two three-way valves 9, a first gas detector 5 is arranged on the connecting pipe 4, a controller 3 is arranged in the protective casing 2 and is in signal connection with the first gas detector 5 and the two three-way valves 9, the left end and the right end of the protective casing 2 are of a detachable structure, and lifting supporting legs are arranged at the bottom of the protective casing 2.

In one possible embodiment, the main air pipe 1 and the auxiliary air pipe 22 comprise a protective inner layer 17 and a protective outer layer 20, a detection air chamber 19 is arranged between the protective inner layer 17 and the protective outer layer 20, a plurality of connecting posts 18 are symmetrically arranged between the protective inner layer 17 and the protective outer layer 20 at equal intervals, a second air detector 7 is arranged outside the main air pipe 1 and the auxiliary air pipe 22, the detection end of the second air detector 7 penetrates through the protective outer layer 20 and is embedded into the detection air chamber 19, a bulb is arranged on the other end of the second air detector 7 and is in signal connection with the controller 3, the protective outer layer 20 comprises a wear-resisting layer, a heat-preserving layer and a sealing layer from outside to inside, the heat-preserving layer is arranged between the sealing layer and the wear-resisting layer, the sealing layer is contacted with the detection air chamber 19 mutually, when the main air pipe 1 and the auxiliary air pipe 22 are broken, the chemical gas overflows into the inner protection layer 17 through the breakage port and enters the detection air chamber 19, and the overflowed chemical gas can be wrapped in the detection air chamber 19 in a short time due to the sealing layer arranged on the inner wall of the outer protection layer 20, the air in the detection air chamber 19 is continuously detected through the arranged second gas detector 7, after the chemical gas enters the detection air chamber 19, the second gas detector 7 alarms, so that maintenance personnel can conveniently carry out emergency repair or replacement on the broken air pipe, the possibility of chemical gas leakage is further reduced, in addition, the wear resistance of the surfaces of the main air pipe 1 and the auxiliary air pipe 22 is improved through the arranged heat preservation layer and the wear resistance layer, the air temperature change in the detection air chamber 19 is reduced due to the arrangement of the heat preservation layer, the influence of thermal expansion and cold contraction on the pipeline is reduced, and the service life of the main air pipe 1 and the auxiliary air pipe 22 is prolonged;

in one possible embodiment, the sealing strips 15 are attached to the inner wall of the mounting hole 6, so that the direct contact between the protective casing 2 and the main air pipe 1 and the auxiliary air pipe 22 is blocked, and the friction between the protective casing 2 and the main air pipe 1 and the auxiliary air pipe 22 is reduced.

In a possible implementation manner, the detachable structures at the left end and the right end of the protective casing 2 comprise baffle plates 8, the baffle plates 8 are provided with fixing blocks towards two ends at one side of the protective casing 2, the fixing grooves 21 are formed in the positions of the protective casing 2 corresponding to the fixing blocks, the fixing blocks can be inserted into the fixing grooves 21, screw holes are formed in the fixing blocks, a plurality of screws 16 are arranged at equal intervals at the front side and the rear side of the protective casing 2, and the screws 16 penetrate through the protective casing 2 and are embedded into the screw holes.

In one possible implementation mode, the lifting support leg comprises a base 13, a lifting groove is formed in the middle of the base 13, a sliding rod 11 is slidably arranged in the lifting groove, the top end of the sliding rod 11 is fixedly connected with the bottom of the protective shell 2, bolts 10 are symmetrically arranged on two sides of the upper end face of the base 13, fixing holes 14 are formed on two sides of the sliding rod 11, the bolts 10 can be embedded into the fixing holes 14, pulleys 12 are arranged on two sides of the bottom of the sliding rod 11, a sliding groove matched with the pulleys 12 is formed in the inner wall of the lifting groove, the pulleys 12 are embedded into the sliding groove, the lifting support leg comprises a base 13, a lifting groove is formed in the middle of the base 13, a sliding rod 11 is slidably arranged in the lifting groove, the top end of the sliding rod 11 is fixedly connected with the bottom of the protective shell 2, the bolt 10 is installed to up end bilateral symmetry of base 13, fixed orifices 14 have all been seted up to slide bar 11 both sides, bolt 10 can imbed in fixed orifices 14, pulley 12 is installed to slide bar 11 bottom both sides, the spout with pulley 12 looks adaptation is seted up to the lift groove inner wall, inside to the spout is embedded to pulley 12, the anticollision layer is installed to the bottom of protective housing 2 and the periphery that is located slide bar 11, the anticollision layer is installed to the bottom of lift groove, after maintainer takes off the hand, unfixed protective housing 2 moves down under the effect of gravity, through the anticollision layer of setting up, furthest's buffering protective housing 2 is to the impact of base 13 up end and slide bar 11 bottom to the lift groove bottom when the striking, reduce the damage to bolt 10 and slide bar 11.

The working process of the utility model is as follows:

firstly, the device is horizontally arranged, after the base 13 is fixed, the sliding rod 11 is embedded into the lifting groove in the base 13, when the sliding rod 11 is adjusted, the pulley 12 slides up and down in the sliding groove, the sliding rod 11 is assisted by the pulley 12 to move, the smoothness of the vertical movement of the sliding rod 11 is guaranteed, installation personnel can conveniently adjust and install the sliding rod until the sliding rod 11 is adjusted to a proper height, the bolt 10 on the upper end face of the base 13 is pushed, the sliding rod 11 is embedded into the fixing hole 14 in the sliding rod 11, fixing is completed, the subsequent horizontal installation of the air pipe is facilitated, and the requirement of installing the air pipe on the concave-convex ground is met.

In normal state, the c, d, e and f ports on the two three-way valves 9 are closed, the a and b ports are adjusted to be opened, chemical gas enters from the main gas pipe at the input end and then moves from the a to b direction and is discharged from the main gas pipe at the output end, when the main gas pipe at the output end needs to be maintained, the conveying directions of the two three-way valves 9 are adjusted by the remote control of the controller 3, so that the b and e ports on the two three-way valves 9 are adjusted to be closed, the c, d and f ports are adjusted to be opened, the chemical gas moves from the a, c, d, f direction after entering from the main gas pipe at the input end, further turns to be output from the auxiliary gas pipe at the other side through the two adjusted three-way valves 9 and the connecting pipe 4, the main gas pipe at the output end can be maintained during subsequent maintenance, the auxiliary gas pipe replaces the main gas pipe at the output end to be conveyed during the maintenance, the problem that the air pipe cannot be used and the production time is wasted in the maintenance process is solved, in addition, before the maintenance, the first gas detector 5 is observed to determine whether chemical gas flows in the connecting pipe 4, if the chemical gas flows in the connecting pipe 4, the chemical gas is turned, the main air pipe at the output end can be maintained, if the chemical gas does not flow in the connecting pipe 4, the three-way valve 9 is not completed to adjust, the screws 16 which are rotatably arranged at the outer side of the protective shell 2 are removed, the fixed connection between the fixed block and the fixed groove 21 is released, the baffle plate 8 is taken down outwards, the inside of the protective shell 2 is opened, the two three-way valves 9 are manually adjusted, the remote control failure of the three-way valve 9 is reported, the probability of gas leakage problem caused by the maintenance operation is reduced, the safety of maintenance personnel is ensured when the three-way valve 9 is adjusted, the baffles 8 on the two sides are installed again, so that the safety of the equipment inside the protective shell 2 is ensured.

Embodiments of the present utility model so far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (6)

1. The utility model provides a pipeline safety steering device for chemical industry gas pipeline maintenance, includes protective housing (2), its characterized in that, four mounting holes (6) have been seted up to both ends face symmetry around protective housing (2), inside protective housing (2) was inserted in two mounting holes (6) of terminal surface and rear end before main trachea (1) passed left side, inside protective housing (2) was inserted in two mounting holes (6) of terminal surface and rear end before auxiliary trachea (22) passed right side, main trachea (1) and auxiliary trachea (22) were located protective housing (2) inside part and are provided with three-way valve (9), are connected with connecting pipe (4) between two three-way valve (9), be provided with first gas detector (5) on connecting pipe (4), protective housing (2) inside is provided with controller (3), controller (3) and first gas detector (5) and two three-way valve (9) signal connection, both ends are detachable structure about protective housing (2), protective housing (2) bottom is provided with lift supporting leg.

2. The pipeline safety steering device for maintenance of chemical gas pipelines according to claim 1, wherein the main gas pipeline (1) and the auxiliary gas pipeline (22) comprise a protection inner layer (17) and a protection outer layer (20), a detection gas chamber (19) is arranged between the protection inner layer (17) and the protection outer layer (20), a plurality of connecting columns (18) are symmetrically arranged between the protection inner layer (17) and the protection outer layer (20) at equal intervals, a second gas detector (7) is arranged outside the main gas pipeline (1) and the auxiliary gas pipeline (22), the detection end of the second gas detector (7) penetrates through the protection outer layer (20) and is embedded into the detection gas chamber (19), and a bulb is arranged on the other end of the second gas detector (7) and is in signal connection with the controller (3).

3. The pipe safety steering device for maintenance of chemical gas pipes according to claim 2, characterized in that the protective outer layer (20) comprises a wear layer, a heat insulating layer and a sealing layer from outside to inside, the heat insulating layer being located between the sealing layer and the wear layer, the sealing layer being in contact with the detection air chamber (19).

4. The pipeline safety steering device for maintenance of the chemical gas pipeline according to claim 1, wherein sealing strips (15) are attached to the inner wall of the mounting hole (6).

5. The pipeline safety steering device for maintenance of chemical gas pipelines according to claim 1, wherein the detachable structures at the left end and the right end of the protective casing (2) comprise baffle plates (8), fixed blocks are arranged at the two ends of one side of the baffle plates (8) towards the protective casing (2), fixed grooves (21) are formed in the positions, corresponding to the fixed blocks, of the protective casing (2), the fixed blocks can be inserted into the fixed grooves (21), screw holes are formed in the fixed blocks, a plurality of screws (16) are arranged at equal intervals at the front side and the rear side of the protective casing (2), and the screws (16) penetrate through the protective casing (2) and are embedded into the screw holes.

6. The pipeline safety steering device for maintaining the chemical gas pipeline according to claim 1, wherein the lifting support leg comprises a base (13), a lifting groove is formed in the middle of the base (13), a sliding rod (11) is arranged in the lifting groove in a sliding mode, the top end of the sliding rod (11) is fixedly connected with the bottom of the protective shell (2), bolts (10) are symmetrically arranged on two sides of the upper end face of the base (13), fixing holes (14) are formed in two sides of the sliding rod (11), the bolts (10) can be embedded into the fixing holes (14), pulleys (12) are arranged on two sides of the bottom of the sliding rod (11), sliding grooves matched with the pulleys (12) are formed in the inner walls of the lifting groove, an anti-collision layer is arranged on the periphery of the sliding rod (11) and arranged on the bottom of the protective shell (2), and the anti-collision layer is arranged on the bottom of the lifting groove.