CN217652748U

CN217652748U - Pressure booster and guniting system

Info

Publication number: CN217652748U
Application number: CN202221513832.XU
Authority: CN
Inventors: 卞万民; 孙跃强; 李军; 樊春虎
Original assignee: Huainan Mining Group Co Ltd
Current assignee: Huainan Mining Group Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-10-25
Anticipated expiration: 2032-06-16

Abstract

The utility model provides a high pressure booster, including the body that both ends link up, the body both ends are import and export respectively, import and export are provided with the coupling mechanism who is connected with external pipeline respectively; an annular cavity is arranged at the middle section of the pipe body, and a plurality of gas injection holes are formed in the inner wall of the annular cavity towards the outlet of the pipe body; and an air inlet connected with air supply equipment is arranged outside the annular cavity. The utility model discloses utilize to let in gas in to the body, improve the delivery pressure of medium in the pipeline under gaseous impact force.

Description

Pressure booster and guniting system

Technical Field

The utility model relates to a colliery whitewashing equipment technical field is a pressure boost motor and whitewashing system particularly.

Background

During the process of tunneling the tunnel, guniting operation is required, the tunnel is continuously extended and limited by various underground field production conditions, the guniting distance of a guniting machine cannot meet the requirement, and when the field conditions cannot meet the conditions of moving the guniting machine, poor guniting quality or difficult guniting is caused, and the engineering quality of the construction tunnel is influenced. At present, more complex piston type supercharging equipment is mostly adopted for supercharging, so that the equipment is complex to assemble and low in operation flexibility.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that solve lies in how to adopt the succinst mode to improve whitewashing pressure.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

a pressure booster comprises a pipe body (1) with two through ends, wherein an inlet and an outlet are respectively arranged at the two ends of the pipe body (1), and the inlet and the outlet are respectively provided with a connecting mechanism connected with an external pipeline; an annular cavity is arranged at the middle section of the pipe body (1), and a plurality of air injection holes (15) are formed in the inner wall of the annular cavity towards the outlet of the pipe body (1); an air inlet (16) connected with air supply equipment is arranged outside the annular cavity.

The utility model discloses the utilization lets in gas in to the body, improves the delivery pressure of medium in the pipeline under gaseous impact force, applicable in other operating modes that need the pressure boost such as long-range whitewashing.

Further, the connecting mechanism is an external thread.

Further, the pipe body (1) comprises a small-diameter section (11) and a large-diameter section (12); a step (13) is formed between the small-diameter section (11) and the large-diameter section (12); the air injection holes (15) are formed in the steps (13).

Furthermore, the inner wall from the step (13) to the large-diameter section (12) is provided with a reducing transition section.

Furthermore, a pipe sleeve is sleeved outside the pipe body (1), and two ends of the pipe sleeve are hermetically fixed with the outer wall of the pipe body (1); the pipe sleeve is provided with the air inlet (16); the annular cavity is formed between the pipe sleeve and the outer wall of the pipe body (1).

Furthermore, the plurality of air injection holes (15) are uniformly distributed on the step (13).

The utility model also provides a guniting system, which comprises the booster, the gas supply equipment, the grout supply equipment and the guniting pipe (2); the inlet end of the guniting pipe (2) is communicated with the outlet of the slurry supply equipment; the booster is connected in series at the pressurization position of the guniting pipe; and the air inlet (16) of the booster is communicated with the air supply end of the air supply equipment.

Furthermore, the guniting pipe (2) is connected with the booster in series at a set distance.

The utility model has the advantages that:

the utility model discloses the utilization lets in gas in to the body, improves the delivery pressure of medium in the pipeline under gaseous impact force, and is applicable in long-range whitewashing or other pressure boost systems that need.

The connecting structure with the external threads is adopted, so that the processing is convenient, and the mounting and the dismounting are convenient. Two sections of pipe sections with different diameters are connected to form a step, so that air injection holes can be conveniently machined, and the transition section is designed, so that the turbulence of a medium can be reduced, and the conveying is smoother.

One or a plurality of thrusters are added into the whole guniting system at intervals, so that the guniting pressure can be improved, and the guniting system is suitable for long-distance guniting work in a complex environment.

Drawings

Fig. 1 is a schematic view of the overall structure of a booster according to embodiment 1 of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a schematic view of the overall structure of embodiment 2 of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

The utility model discloses a pressure booster, which comprises a pipe body 1 with two through ends, wherein the pipe body is generally made of copper materials, the two ends of the pipe body 1 are respectively provided with an inlet and an outlet, and the inlet and the outlet are respectively provided with a connecting mechanism connected with an external pipeline; the connecting mechanism can be an internal thread, an external thread or a quick connector, and the like, and the embodiment adopts the external thread, so that the processing is easier.

The body 1 includes small diameter section 11 and major diameter section 12, and small diameter section 11 is the import, and major diameter section 12 is the export. A step 13 is formed between the small-diameter section 11 and the large-diameter section 12; the outside cover at body 1 is equipped with sleeve pipe 14, and sleeve pipe 14's both ends respectively with little diameter section 11, the outside welded fastening of big diameter section 12, form annular cavity between sleeve pipe 14 and little diameter section 11, the big diameter section 12, a plurality of fumaroles 15 have evenly been seted up to the annular on step 13, fumarole 15 and annular cavity intercommunication, the jet-propelled direction of fumarole 15 is towards the export of body 1. The outer wall of the annular cavity is also provided with an air inlet 16, and the air inlet 16 is communicated with air supply equipment.

In order to reduce the turbulence of the slurry, the inner wall of the step 13 to the large diameter section 12 in this embodiment has a variable diameter transition section 17, i.e., a flared section, to facilitate the rapid advancement of the slurry under pressure.

Example 2

The embodiment provides a guniting system for application of the booster in embodiment 1, and the guniting system comprises the booster, gas supply equipment, slurry supply equipment and a guniting pipe 2; the inlet end of the guniting pipe 2 is communicated with the outlet of the slurry supply equipment; a booster is connected in series at the position of the guniting pipe needing pressurization; the air inlet 16 of the booster is communicated with the air supply end of the air supply device. The air supply equipment generally supplies natural wind to the booster.

According to the difference of actual guniting distance, a booster can be connected in series at the interval of the guniting pipe at a set distance. Especially for the environment with large construction inclination angle, a booster is generally arranged at an interval of about 20m, the guniting can be increased to about 150m from the original 70m, the material transferring procedure is reduced, the labor is saved, and the work efficiency is improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not by way of limitation; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The pressure booster is characterized by comprising a pipe body (1) with two through ends, wherein the two ends of the pipe body (1) are respectively provided with an inlet and an outlet, and the inlet and the outlet are respectively provided with a connecting mechanism connected with an external pipeline; an annular cavity is arranged at the middle section of the pipe body (1), and a plurality of air injection holes (15) are formed in the inner wall of the annular cavity towards the outlet of the pipe body (1); an air inlet (16) connected with air supply equipment is arranged outside the annular cavity.

2. The pressure booster of claim 1, wherein the attachment mechanism is external threads.

3. A pressure booster as claimed in claim 1 or 2, characterised in that the tubular body (1) comprises a small-diameter section (11) and a large-diameter section (12); a step (13) is formed between the small-diameter section (11) and the large-diameter section (12); the air injection holes (15) are formed in the steps (13).

4. A pressure booster as claimed in claim 3, characterised in that the step (13) to the large diameter section (12) has a variable diameter transition at the inner wall.

5. The pressure booster as claimed in claim 3, wherein a pipe sleeve is sleeved outside the pipe body (1), and two ends of the pipe sleeve are hermetically fixed with the outer wall of the pipe body (1); the pipe sleeve is provided with the air inlet (16); the annular cavity is formed between the pipe sleeve and the outer wall of the pipe body (1).

6. A pressure booster as claimed in claim 3, wherein the plurality of air injection holes (15) are uniformly distributed on the step (13).

7. A guniting system, comprising the booster, the gas supply apparatus, the slurry supply apparatus, and the guniting pipe (2) of any one of claims 1 to 6; the inlet end of the guniting pipe (2) is communicated with the outlet of the slurry supply equipment; the booster is connected in series at the pressurization position of the guniting pipe; and the air inlet (16) of the booster is communicated with the air supply end of the air supply equipment.

8. Guniting system according to claim 7, wherein the guniting tube (2) is connected in series with one of the thrusters at a set distance.