CN204717223U - Taper sealing steel-plastic composite pipe pressure testing device - Google Patents

Abstract

A pressure test device for a tapered sealed steel-plastic composite pipe, comprising a tapered ferrule (2), an inner tapered surface and a tapered ferrule (2) installed in the end of the pipeline (1) and arranged in sequence from the inside to the outside The sealing sleeve (3) whose outer tapered surface is matched and whose outer peripheral wall is in close contact with the inner wall of the pipeline (1), and the baffle that is in contact with the end of the sealing sleeve (3) and whose outer peripheral wall is in close contact with the inner wall of the pipeline (1) (4), the hoop body (5.1) is set on the pipeline (1) and one end end plate (5.2) is close to the hoop (5) at the end of the tapered outer end (1.1) of the pipeline (1) and the end of the baffle (4) , the other end of the ferrule (5) is provided with a limit plate (5.3) that is in close contact with the tapered inner end (1.2) of the pipeline (1). The pressure test device for the tapered sealed steel-plastic composite pipe has the advantages of simple and convenient operation and low cost, and the pipeline runs safely after the pressure test.

Description

Conical sealing steel-plastic composite pipe pressure test device

technical field

The utility model relates to the technical field of pressure testing of steel-plastic composite pipes, in particular to a pressure-testing device for a tapered sealing steel-plastic composite pipe.

Background technique

At the construction site, after the steel-plastic composite pipeline is installed, it is generally necessary to carry out acceptance and pressure tests on the pipeline to check whether the steel-plastic composite pipeline meets the requirements. At present, for the pressure test of the steel-plastic composite pipeline with tapered seal, it is often necessary to weld the steel-plastic composite flange short pipe at the end of the steel-plastic composite pipeline, and then use the flange head of the steel-plastic composite flange short pipe to connect The flange blind plate is used to seal the end of the steel-plastic composite pipeline through the flange blind plate to achieve subsequent pressure testing.

With the pressure test device of the above structure, after the pressure test is completed, the flange head protruding from the end of the steel-plastic composite pipeline needs to be sawed off, and the short pipe of the sawn-off steel-plastic composite flange needs to be manually sealed. In addition, a transitional electrofusion joint with a special structure needs to be configured to connect with the existing tapered sealing pipeline. It is easy to leave a safety hazard for the operation of the pipeline.

Utility model content

The technical problem to be solved by the utility model is to provide a pressure test device for a tapered sealed steel-plastic composite pipe with simple operation, convenience, low cost, and safe operation of the pipeline after the pressure test.

In order to solve the above technical problems, the technical solution provided by the utility model is as follows: it includes a tapered ferrule installed in the end of the pipeline and arranged in sequence from the inside to the outside, the inner tapered surface is matched with the outer tapered surface of the tapered ferrule and The sealing sleeve whose outer circumferential wall is closely attached to the inner wall of the pipeline, the baffle plate which is adjacent to the end of the sealing sleeve and the outer circumferential wall is closely attached to the inner wall of the pipeline, and the hoop is set on the pipeline and one end plate is closely attached to the tapered outer end of the pipeline and The ferrule at the end of the baffle, the other end of the ferrule is provided with a limit plate that is in close contact with the tapered inner end of the pipeline.

The ferrule is composed of two to four arc blocks, and the arc blocks are connected by bolts.

The pressure test device of the tapered sealing steel-plastic composite pipe of the utility model can realize the pressure test and pressure maintenance of the tapered sealing pipeline, and because the tapered ferrule and the sealing sleeve are provided, in the process of pressure testing and pressure maintenance, the Influenced by the internal pressure of the pipeline, the tapered ferrule will be more and more tightly fitted in the sealing sleeve and the sealing sleeve will be squeezed to make the sealing effect of the sealing sleeve more and more obvious. In addition, the setting of the ferrule makes the utility model The tapered sealing steel-plastic composite pipe pressure test device can achieve zero leakage during the pressure test and pressure maintenance process. The pressure test device of the conical sealing steel-plastic composite pipe of the utility model does not need welding, and can be taken out from the end of the pipeline after the pressure test, which will not cause waste, reduce the pressure test cost, and effectively ensure the safety of the pipeline after the pressure test run.

Further, the ferrule is composed of two to four arc blocks, and the arc blocks are connected by bolts, which is convenient for fitting and dismounting of the ferrule.

Description of drawings

Fig. 1 is a side view structural schematic diagram of a pressure test device for a tapered sealing steel-plastic composite pipe of the present invention.

Fig. 2 is a schematic diagram of the front view of the pressure test device for the tapered sealing steel-plastic composite pipe of the utility model.

Fig. 3 is a schematic cross-sectional structure diagram of a pressure test device for a tapered sealing steel-plastic composite pipe of the present invention.

As shown in the figure of the utility model: 1 pipeline, 1.1 tapered outer end, 1.2 tapered inner end, 2 tapered ferrule, 3 sealing sleeve, 4 baffle plate, 5 ferrule, 5.1 hoop body, 5.2 end plate, 5.3 limit plate.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in the figure, the pressure test device of the tapered sealing steel-plastic composite pipe of the present invention includes a tapered ferrule 2 installed in the end of the pipeline 1 and arranged in sequence from the inside to the outside, the inner tapered surface and the tapered ferrule 2 The sealing sleeve with the outer tapered surface matched and the outer peripheral wall closely attached to the inner wall of the pipeline 1 3, the baffle plate attached to the end surface of the sealing sleeve 3 and the outer peripheral wall closely attached to the inner wall of the pipeline 1, and the hoop body 5.1 set on the pipeline 1 and one end end plate 5.2 is close to the ferrule 5 at the tapered outer end 1.1 of the pipeline 1 and the end of the baffle plate 4 . The other end of the ferrule 5 is provided with a limiting plate 5.3 which is in close contact with the tapered inner end 1.2 of the pipeline 1 .

The ferrule 5 is composed of two to four arc blocks, and the arc blocks are connected by bolts.

In this embodiment, the limiting plate 5.3 is a ring-shaped limiting plate, and the ring-shaped limiting plate is used to limit the position in a circle, so the contact area is large and the position-limiting effect is better.

The pressure test device for the tapered sealed steel-plastic composite pipe of the utility model can realize the on-site pressure test and pressure maintenance of the pipeline, and can ensure zero leakage during the pressure test and pressure maintenance process, and there is no need to carry out various procedures during the entire pressure test process. The welding of components is very convenient to operate.

Claims (2)

1. A pressure test device for a tapered sealed steel-plastic composite pipe, characterized in that it includes a tapered ferrule (2) installed in the end of the pipeline (1) and arranged sequentially from the inside to the outside, the inner tapered surface and the tapered The sealing sleeve (3) that is matched with the outer tapered surface of the ferrule (2) and the outer peripheral wall is in close contact with the inner wall of the pipeline (1), and the end of the sealing sleeve (3) is in contact with the outer peripheral wall and the pipeline (1) The baffle (4) and the hoop (5.1) that are close to the inner wall are set on the pipeline (1), and one end end plate (5.2) is close to the tapered outer end (1.1) of the pipeline (1) and the end of the baffle (4) The ferrule (5), the other end of the ferrule (5) is provided with a limit plate (5.3) that is in close contact with the tapered inner end (1.2) of the pipeline (1). 2. The pressure test device for tapered sealed steel-plastic composite pipe according to claim 1, characterized in that: the ferrule (5) is composed of two to four arc blocks, and the space between the arc blocks is The connection is made with bolts.