Hydrostatic test device for volute of carbon dioxide compressor

Abstract

The utility model discloses a hydrostatic test device for a volute of a carbon dioxide compressor, and relates to the field of compressors. The volute comprises a volute body, a water inlet pipe is connected and installed in a port in one side of the volute body, a sealing plate is fixedly installed at the other port of the volute body, an insertion hole is formed in the sealing plate, an exhaust pipe is inserted in the insertion hole in a sealed mode, one end of the exhaust pipe extends to the top end of the interior of the volute body, and the other end of the exhaust pipe extends to the top end of the interior of the volute body. The other end of the exhaust pipe extends out of the volute body, and the outer side end of the exhaust pipe is fixedly connected with a valve. When water is injected, gas in the volute body gathers at the top and then is exhausted from the inserted exhaust pipe, after the exhaust pipe exhausts water, it is proved that the volute body is fully filled with water, and the whole volute body can be fully filled with water during a water pressure test by exhausting the gas, so that the accuracy of a water pressure test result is improved.

Description

Technical Field

[0001] The utility model belongs to the field of compressors, and particularly relates to a hydrostatic test device for a volute of a carbon dioxide compressor. Background Art

[0002] The main function of a carbon dioxide compressor is to increase the pressure of carbon dioxide gas to meet the reaction conditions of a high-pressure system. During the production and preparation of a carbon dioxide compressor, a hydrostatic test needs to be carried out on the compressor volute (outer shell). Through the hydrostatic test, it is possible to effectively detect whether there are leaks or structural defects in each component of the compressor, thereby ensuring the safe and stable operation of the compressor in a high-pressure working environment. In the prior art, when conducting a hydrostatic test on the volute, when the volute is filled with water, due to the presence of an arc-shaped convex cavity at the top of the volute, gas will remain in the cavity at the top of the volute, resulting in the water not being able to completely fill the entire volute body, which will affect the accuracy of the hydrostatic test results. Summary of the Utility Model

[0003] In view of the problems in the related art, the present utility model provides a hydrostatic test device for a volute of a carbon dioxide compressor to overcome the above-mentioned technical problems existing in the prior related art.

[0004] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0005] The present utility model is a hydrostatic test device for a volute of a carbon dioxide compressor, including a volute body. An inlet pipe is connected and installed inside one port of the volute body. A sealing plate is fixedly installed at the other port of the volute body. There is a jack on the sealing plate, and an exhaust pipe is hermetically inserted into the jack. One end of the exhaust pipe extends to the top end inside the volute body, and the other end of the exhaust pipe extends to the outside of the volute body.

[0006] Further, a valve is fixedly connected and installed at the outer end of the exhaust pipe.

[0007] Further, the exhaust pipe includes a vertically inlet part, an inclined conveying part, and a vertically outlet part that are connected in sequence.

[0008] Further, the inlet end of the exhaust pipe abuts against the inner wall of the top of the volute body, and an inlet notch is provided in the circumferential direction of the inlet end of the exhaust pipe.

[0009] Further, the valve is a ball valve.

[0010] The present utility model has the following beneficial effects:

[0011] 1. In the utility model, a hole is opened on the sealing plate at the open end of the volute body, and the exhaust pipe with a ball valve is inserted into the top of the volute body. When water is injected, the gas inside the volute body gathers at the top and then is discharged from the inserted exhaust pipe. When water is discharged from the exhaust pipe, it proves that the inside of the volute body is completely filled with water. By discharging the gas, the water can completely fill the entire volute body during the hydrostatic test, so as to improve the accuracy of the hydrostatic test result. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the volute of the carbon dioxide compressor of the present utility model;

[0014] Figure 2 For the present utility model Figure 1 is a structural schematic diagram of the B-B section.

[0015] In the figure: 1, volute body; 2, water inlet pipe; 3, exhaust pipe; 4, valve; 5, sealing plate. Detailed Embodiment

[0016] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the utility model.

[0017] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0018] Please refer to Figure 1 、 Figure 2As shown in the figure, the utility model is a hydrostatic test device for a carbon dioxide compressor volute, which includes a volute body 1. An inlet pipe 2 is connected and installed inside one port of the volute body 1. A sealing plate 5 is fixedly installed at the other port of the volute body 1. There are jacks on the sealing plate 5, and an exhaust pipe 3 is hermetically inserted into the jacks. One end of the exhaust pipe 3 extends to the top end inside the volute body 1, and the other end of the exhaust pipe 3 extends to the outside of the volute body 1. A valve 4 is fixedly connected and installed at the outer side end of the exhaust pipe 3, and the valve 4 is a ball valve;

[0019] During the hydrostatic test, the inlet pipe 2 is connected to the water supply pipeline for the test, so that the water supply pipeline supplies water to the volute body 1 through the inlet pipe 2. At the same time, the gas inside the volute body 1 accumulates at the top end inside it and then is discharged from the exhaust pipe 3. When water is discharged from the exhaust pipe 3, it proves that the inside of the volute body 1 is completely filled with water. At this time, the ball valve is closed to seal the exhaust pipe 3, and then water is continuously supplied to the volute body 1 to conduct the hydrostatic test; by discharging the gas, the water can completely fill the entire volute body 1 during the hydrostatic test, which can improve the accuracy of the hydrostatic test results.

[0020] Specifically, the exhaust pipe 3 includes a vertically inlet part, an inclined conveying part and a vertically outlet part connected in sequence, so that the exhaust pipe 3 can adapt to the internal contour of the volute body 1, which is convenient for the top end of the exhaust pipe 3 to extend to the top end inside the volute body 1.

[0021] Specifically, the inlet end of the exhaust pipe 3 abuts against the inner wall of the top of the volute body 1, and an inlet notch is arranged in the circumferential direction of the inlet end of the exhaust pipe 3. By abutting the inlet end of the exhaust pipe 3 against the inner wall of the top of the volute body 1, the exhaust pipe 3 is located at the highest position inside the cavity of the volute body 1, so as to ensure that all the gas inside the volute body 1 can be discharged by the exhaust pipe 3. By setting the circumferential inlet notch, the inlet of the exhaust pipe 3 can be prevented from being blocked by the inner wall of the volute body 1, ensuring unobstructed exhaust.

[0022] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0023] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model.

Claims

1. A hydrostatic test device for a volute of a carbon dioxide compressor, comprising a volute body (1), characterized in that: A water inlet pipe (2) is connected and installed inside one side port of the volute body (1). A sealing plate (5) is fixedly installed at the other port of the volute body (1). A jack is provided on the sealing plate (5), and an exhaust pipe (3) is hermetically inserted into the jack. One end of the exhaust pipe (3) extends to the top end inside the volute body (1), and the other end of the exhaust pipe (3) extends to the outside of the volute body (1).

2. The hydrostatic test device for a carbon dioxide compressor volute according to claim 1, characterized in that: A valve (4) is fixedly connected and installed at the outer end of the exhaust pipe (3).

3. The hydrostatic test device for a carbon dioxide compressor volute according to claim 1, characterized in that: The exhaust pipe (3) includes a vertical water inlet part, an inclined conveying part and a vertical water outlet part which are connected in sequence.

4. The hydrostatic test device for a carbon dioxide compressor volute according to claim 1, characterized in that: The air inlet end of the exhaust pipe (3) abuts against the inner wall of the top of the volute body (1), and air inlet notches are arranged in the circumferential direction of the air inlet end of the exhaust pipe (3).

5. The hydrostatic test device for a carbon dioxide compressor volute according to claim 2, characterized in that: The valve (4) is a ball valve.

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