CN217977884U

CN217977884U - Gas conveying adjusting device

Info

Publication number: CN217977884U
Application number: CN202222266854.7U
Authority: CN
Inventors: 李华
Original assignee: Kunming Longruiyiyan Gas Products Distribution Service Co ltd
Current assignee: Kunming Longruiyiyan Gas Products Distribution Service Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-12-06
Anticipated expiration: 2032-08-25

Abstract

The utility model belongs to the technical field of gas delivery, in particular to a gas delivery adjusting device, which comprises a pipeline assembly and a piston assembly, wherein the piston assembly comprises a piston rod and cylinder bodies, the outer walls of the two ends of the piston rod are respectively provided with a piston, the two pistons are respectively arranged on the inner walls of the two cylinder bodies in a sliding way, and a through central flow passage is arranged inside the piston rod and used for communicating the two cylinder bodies; the other end of the cylinder body is connected with the pipeline assembly, and the pipeline assembly is communicated with the cylinder body; and a plurality of overflow holes are uniformly distributed on the circumference of the piston. The utility model discloses relative distance between two pipe assembly of adjustment that can convenient and fast can realize the piping erection of multi-angle, need not operations such as cutting welding, and it is convenient to install, easy to operate.

Description

Gas conveying adjusting device

Technical Field

The utility model belongs to the technical field of gas delivery, especially, relate to a gas delivery adjusting device.

Background

The gas transmission device refers to a device capable of transmitting various gases (natural gas, oxygen, etc.), and the gas transmission device includes a driving machine for driving the gas to continuously flow, a pipeline system for carrying the gas to flow, various control valves, and the like.

During installation of a pipeline system, pipeline butt joint installation, pipeline reducing installation, pipeline guiding installation and the like are often required. Through articulate between pipeline and the pipeline, in order to guarantee the installation accuracy, technical staff need design the assembly drawing in advance to the accurate installation of requirement according to the assembly drawing.

However, in the actual installation process, joints at various pipelines often cannot be prefabricated in advance, various problems can be faced in the actual installation, the position between the pipelines cannot be adjusted, and the installation position is staggered, so that the conventional method is to use electrogas welding cutting, and the field welding installation is cut and welded according to the arrangement requirement of the pipelines at the installation field. The installation method of cutting and welding on site is time-consuming and labor-consuming, and can also cause the incapability of firing operation due to the transportation of dangerous gases such as coal gas and the like by a pipeline system, thereby greatly limiting the installation operation of the pipeline, and increasing the difficulty and potential safety hazard of pipeline installation.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the background art, the utility model provides a gas delivery adjusting device, its relative distance between two pipe assembly of adjustment that can convenient and fast can realize the piping erection of multi-angle, need not operations such as cutting welding, and it is convenient to install, easy to operate.

In order to achieve the above purpose, the utility model provides a technical scheme does:

a gas conveying adjusting device comprises a pipeline assembly and a piston assembly, wherein the piston assembly comprises a piston rod and cylinder bodies, the outer walls of two ends of the piston rod are respectively provided with a piston, the two pistons are respectively arranged on the inner walls of the two cylinder bodies in a sliding manner, and a through central flow passage is arranged in the piston rod and used for communicating the two cylinder bodies; the other end of the cylinder body is connected with the pipeline assembly, and the pipeline assembly is communicated with the cylinder body; and a plurality of overflow holes are uniformly distributed on the circumference of the piston.

Optionally, the length of the cylinder inner cavity is greater than the length of the piston rod.

Optionally, both ends of the central flow passage are respectively provided with a mounting groove, a filter screen is arranged in the mounting groove, and the filter screen covers the central flow passage and is provided with an overflow hole.

Optionally, one end of each cylinder body extends to form a flange portion, a plurality of connecting holes are evenly distributed in the circumference of each flange portion, and two flange portions of two adjacent cylinder bodies are connected through a plurality of connecting screw rods.

Optionally, the pipeline assembly comprises a connection elbow, a flange part is arranged at one end of the connection elbow, a plurality of connecting holes are uniformly distributed in the circumference of the flange part, and the screw rod is arranged in the connecting holes in the flange part of the connection elbow in a penetrating mode.

Optionally, the other end of the connection elbow is in threaded connection with an air inlet and outlet pipeline.

Optionally, the utility model discloses a gas delivery adjusting device still includes flow control valve, be provided with rotary joint on flow control valve's the interface, rotary joint and pipe assembly connect.

The utility model has the advantages of as follows and beneficial effect:

1. the utility model discloses a gas conveying adjusting device includes pipeline assembly and piston assembly, and piston assembly's both ends are connected with pipeline assembly to can transmit gas in proper order through pipeline assembly, piston assembly, pipeline assembly. In the installation, can slide the relative distance of two cylinder bodies, realize the ascending control of length direction to the setting of two piston cylinder bodies can further increase piston assembly's regulation stroke, is applicable to various remote pipeline erection connections. The cylinder body can rotate relative to the piston rod, namely, the angle of the pipeline assembly can be adjusted in a 360-degree rotating mode. To sum up, the utility model discloses can adjust length, angle, realize the installation of multidimension degree, easy operation is swift, need not operations such as on-the-spot cutting welding, labour saving and time saving.

2. The utility model discloses in, there is a plurality of overflow hole at the circumference equipartition of piston for when the slip adjustment cylinder body position, the cylinder body inner chamber of piston both sides can form an air current circulation, thereby can allow the lift slip of inside piston laborsaving, even if the installation has been accomplished to the pipeline, inside has let in the air current, still can adjust the relative distance between two cylinders bodies, need not promptly to stop the gas with pipe-line system, can adjust at the in-process of supplying gas, has reduced installation time greatly.

Drawings

Fig. 1 is a first connection diagram of a gas delivery regulating device provided by the present invention;

fig. 2 is a second connection schematic diagram of the gas delivery regulating device provided by the present invention;

fig. 3 is a first connection diagram of the pipe assembly and the piston assembly provided by the present invention;

FIG. 4 is an enlarged view of a portion a of FIG. 3;

FIG. 5 is an enlarged view of the portion b of FIG. 3;

fig. 6 is a second connection diagram of the pipe assembly and the piston assembly provided by the present invention;

an icon: 1-flow control valve, 11-first rotary joint, 12-second rotary joint, 2-air inlet pipeline, 3-first connecting bent pipe, 31-flange part, 4-first cylinder body, 5-piston rod, 5 a-central flow passage, 5 b-overflow hole, 51-first piston, 52-second piston, 53-filter screen, 6-second cylinder body, 61-first cavity, 62-second cavity, 7-second connecting bent pipe, 8-air outlet pipeline, 81-third rotary joint, 9-connecting screw rod and 91-locking nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 6, a gas delivery regulating device includes a flow control valve 1, a pipe assembly and a piston assembly.

As shown in fig. 1 and 2, the flow control valve 1 is provided with a plurality of ports, one of which is provided with a first rotary joint 11, and the other of which is provided with a second rotary joint 12. A first swivel joint 11 is connected to the inlet duct 2 and a second swivel joint 12 is used for connection to the duct assembly.

As shown in fig. 3, 4 and 5, the piston assembly includes a piston rod 5 and two cylinders, i.e., a first cylinder 4 and a second cylinder 6. The outer walls of the two ends of the piston rod 5 are respectively provided with a first piston 51 and a second piston 52, the first piston 51 is slidably arranged on the inner wall of the first cylinder 4, and the second piston 52 is slidably arranged on the inner wall of the second cylinder 6. In order to ensure the tightness between the cylinder, the piston and the piston rod 5, corresponding sealing rings are required to be arranged for sealing. The design and installation principle of the sealing ring is similar to the sealing principle of the cylinder and the hydraulic pipe.

The piston rod 5 is provided with a center flow passage 5a therethrough so as to communicate the first cylinder 4 with the second cylinder 6.

The utility model discloses in, pipeline assembly can include the connecting tube of various shapes, as the utility model provides a preferred design, pipeline assembly chooses for use the connecting bend. The connecting bent pipe can play a role in buffering transition and reducing airflow impact.

The connecting bent pipe comprises a first connecting bent pipe 3 and a second connecting bent pipe 7, the other end of the first cylinder 4 is connected with the first connecting bent pipe 3, and the other end of the second cylinder 6 is connected with the second connecting bent pipe 7; the other end of the first connecting elbow 3 is connected to the second swivel joint 12, and the other end of the second connecting elbow 7 is connected to the third swivel joint 81 and the outlet pipe 8. Thus, the air flow can be sequentially conveyed along the air inlet pipeline 2, the first rotary joint 11, the flow control valve 1, the second rotary joint 12, the first connecting bent pipe 3, the first cylinder 4, the piston rod 5, the second cylinder 6, the second connecting bent pipe 7, the third rotary joint 81 and the air outlet pipeline 8.

During installation, the relative distance between the first cylinder 4 and the second cylinder 6 can be adjusted in a sliding manner, and the adjustment of the relative distance L between the inlet pipe 2 and the outlet pipe 8 can be realized by controlling the relative distance between the first cylinder 4 and the second cylinder 6, as shown in fig. 1 and 2. And the arrangement of the double pistons and the double cylinder bodies can further increase the adjusting stroke of the piston assembly, and is suitable for installation and connection of various long-distance pipelines. The cylinder body can rotate relative to the piston rod 5, namely, the angle of the pipeline assembly can be adjusted through 360 degrees of rotation. As shown in fig. 1 and 2, the installation is schematically illustrated at different angles, and the schematic diagrams of the more various angles are not described in detail. To sum up, the utility model discloses can adjust length, angle, realize the installation of multidimension degree, easy operation is swift, need not operations such as on-the-spot cutting welding, labour saving and time saving.

Further, as shown in fig. 5, a plurality of overflow holes 5b are uniformly distributed on the circumference of the pistons (the first piston 51 and the second piston 52). When the interior of the cylinder (the first cylinder 4, the second cylinder 6) is divided into the first chamber 61 and the second chamber 62 by the pistons (the first piston 51, the second piston 52) and the pistons (the first piston 51, the second piston 52) slide along the inner wall of the cylinder (the first cylinder 4, the second cylinder 6) after the overflow holes 5b are provided, the flow direction of the internal airflow is: first cavity 61, overflow hole 5b, second cavity 62, overflow hole 5b, first cavity 61, just can form an air current circulation to can allow the laborsaving lift of inside piston to slide, even if installation has been accomplished to holistic pipeline, inside has let in gas, still can adjust the relative distance between two cylinders, need not promptly to stop the gas with pipe-line system, can adjust at the air feed in-process, installation time has been reduced greatly, pipeline interfacing apparatus's use scene has been widened.

Furthermore, the length of the inner cavity of the cylinder body (the first cylinder body 4 and the second cylinder body 6) is larger than that of the piston rod 5, so that the piston rod 5 always slides in the cylinder body without contacting with the pipeline assembly, and the piston is prevented from being damaged. Because the processing requirements of the cylinder body and the pipeline assembly are different, and the interior of the cylinder body is connected with the piston, the roughness is smaller, so that the connection sealing performance can be ensured, and meanwhile, the piston is prevented from contacting with the rougher inner wall of the pipeline assembly.

Further, two ends of the central flow passage 5a are respectively provided with an installation groove, a filter screen 53 is arranged in the installation grooves, and the filter screen 53 covers the central flow passage 5a and the overflow holes 5b. By adopting the design, after the airflow enters the first cavity 61 of the first cylinder 4 from the first connecting elbow 3, the airflow is filtered by the filter screen 53 and then reaches the inner cavity of the second cylinder 6, and part of the air filtered by the filter screen 53 reaches the second cavity 62 of the first cylinder 4 through the overflow hole 5b, so that when the position of the first piston 51 is adjusted in a sliding manner, the inside of the second cavity 62 is always provided with clean airflow, the inflow of impurities is avoided, and the sealing performance of the first piston 51 and the first cylinder 4 during sliding can be ensured.

Further, the first cylinder body 4, the one end of second cylinder body 6 all extends and is provided with flange portion 31, flange portion 31 circumference equipartition has a plurality of connecting hole, first cylinder body 4, two flange portions 31 of second cylinder body 6 are connected through a plurality of connecting screw 9, wear to be equipped with a plurality of lock nut 91 on the connecting screw 9, thereby can be stable inject first cylinder body 4, the position of second cylinder body 6, adjust first cylinder body 4, just can pass through connecting screw 9 after the relative distance of second cylinder body 6, lock nut 91 is fixed.

Furthermore, a flange part 31 is arranged at one end of the connecting elbow, a plurality of connecting holes are evenly distributed on the circumference of the flange part 31, and the connecting screws 9 are arranged in the connecting holes of the flange part 31 of the connecting elbow in a penetrating manner.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas delivery regulating device comprising a conduit assembly and a piston assembly, said piston assembly comprising a piston rod (5) and a cylinder, characterized in that:

the outer walls of two ends of the piston rod (5) are respectively provided with a piston, the two pistons are respectively arranged on the inner walls of the two cylinder bodies in a sliding manner, and a through central flow passage (5 a) is arranged in the piston rod (5) and used for communicating the two cylinder bodies;

the other end of the cylinder body is connected with the pipeline assembly, and the pipeline assembly is communicated with the cylinder body; a plurality of overflow holes (5 b) are uniformly distributed on the circumference of the piston.

2. The gas delivery regulating device of claim 1, wherein: the length of the inner cavity of the cylinder body is larger than that of the piston rod (5).

3. The gas delivery regulation device of claim 1, wherein: the both ends of center flow way (5 a) are provided with a mounting groove respectively, be provided with filter screen (53) in the mounting groove, filter screen (53) cover center flow way (5 a) and overflow hole (5 b) setting.

4. The gas delivery regulating device of claim 1, wherein: one end of each cylinder body extends to be provided with a flange part (31), a plurality of connecting holes are evenly distributed in the circumference of each flange part (31), and the two flange parts (31) of the two adjacent cylinder bodies are connected through a plurality of connecting screw rods (9).

5. The gas delivery regulation device of claim 4, wherein: the pipeline subassembly is including connecting the return bend, the one end of connecting the return bend is provided with flange portion (31), flange portion (31) circumference equipartition has a plurality of connecting hole, the screw rod is worn to establish in the connecting hole of connecting return bend flange portion (31).

6. The gas delivery regulating device of claim 5, wherein: and the other end of the connecting bent pipe is in threaded connection with an air inlet and outlet pipeline (8).

7. The gas delivery regulation device of claim 1, wherein: the flow control valve is characterized by further comprising a flow control valve (1), wherein a rotary joint is arranged on an interface of the flow control valve (1), and the rotary joint is connected with the pipeline assembly.