Ball valve for gas measurement

Abstract

The ball valve comprises a shell, the side wall of one end of the shell is connected with a gas measuring port, and the outer end of the gas measuring port is connected with a gas measuring port sealing sleeve; a valve element is arranged in the shell, and the lower end of the valve element is rotationally connected with the inner wall of the shell through a lower valve rod. The upper end of the valve element is connected with an upper valve rod, the outer wall of the upper valve rod is rotationally connected with the shell, the upper end of the upper valve rod penetrates through the shell, a fixing ring is connected into the handle, and the upper end of the upper valve rod is fixedly connected with the fixing ring. A sealing ring is arranged between the valve element and the inner wall of the shell. A gasket is arranged on the lower end face of the fixing ring. And the shell is made of a PVC (Polyvinyl Chloride) material. The upper end of the handle is connected with a handle cover. The outer wall of one end of the shell is connected with a nameplate. The ball valve for gas measurement aims to overcome the defects in the prior art, and the concentration can be measured without interrupting gas extraction.

Description

Technical Field

[0001] The utility model relates to a ball valve for gas measurement. Background Art

[0002] A valve is a device that uses a moving part to open, close, or partially block one or more openings or channels, enabling the flow of liquid, air, or other gas flows or large amounts of loose materials to flow out, be blocked, or be regulated.

[0003] In the underground coal mine, in the gas drainage pipeline, generally a concentration measurement device is set in the middle of the pipeline. Currently, a two-way valve is connected in the pipeline, and when measuring the concentration, the two-way valve is connected to the concentration measurement device, which affects the gas drainage efficiency. Therefore, a ball valve for gas measurement is proposed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a ball valve for gas measurement to overcome the existing defects, which can measure the concentration without interrupting the gas drainage.

[0005] The technical solution to achieve the above purpose is: a ball valve for gas measurement, including a housing. A gas measurement port is connected to the side wall at one end of the housing, and a gas measurement port sealing sleeve is connected to the outer end of the gas measurement port. A valve core is arranged inside the housing, and the lower end of the valve core is rotationally connected to the inner wall of the housing through a lower valve stem. The upper end of the valve core is connected to an upper valve stem, the outer wall of the upper valve stem is rotationally connected to the housing, and the upper end penetrates through the housing. A fixed ring is connected inside the handle, and the upper end of the upper valve stem is fixedly connected to the fixed ring.

[0006] Preferably, a sealing ring is arranged between the valve core and the inner wall of the housing.

[0007] Preferably, a washer is arranged on the lower end surface of the fixed ring.

[0008] Preferably, the housing is made of PVC (polyvinyl chloride) material.

[0009] Preferably, a handle cover is connected to the upper end of the handle.

[0010] Preferably, a nameplate is connected to the outer wall at one end of the housing.

[0011] The beneficial effect of the utility model is: for this ball valve for gas measurement, by setting the gas measurement port, the ball valve is equipped with a gas measurement nozzle, which is convenient for gas measurement in the gas drainage pipeline; and the housing is made of PVC, which has the advantages of anti-static and flame retardant. Description of the Drawings

[0012] Figure 1 It is a cross-sectional view of the ball valve for gas measurement of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 It is a side view of the present utility model.

[0015] In the figure: 1. Handle; 2. Fixed ring; 3. Washer; 4. Upper valve stem; 5. Outer shell; 6. Sealing ring; 7. Valve core; 8. Gas measurement port; 9. Lower valve stem; 10. Handle cover; 11. Nameplate. Specific embodiments

[0016] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0017] Next, the present utility model will be further described in conjunction with the accompanying drawings.

[0018] As Figures 1-3 shown, the gas measurement ball valve is mainly used in the gas drainage pipeline in the coal mine underground. This product can be used in mines with the risk of gas and coal dust explosion, and is used as a device for measuring gas in the gas drainage pipeline in the coal mine underground. It includes an outer shell 5, a gas measurement port 8 is connected to the side wall at one end of the outer shell 5, and a gas measurement port sealing sleeve is connected to the outer end of the gas measurement port 8; a valve core 7 is arranged inside the outer shell 5, and the lower end of the valve core 7 is rotationally connected to the inner wall of the outer shell 5 through a lower valve stem 9; the upper end of the valve core 7 is connected to an upper valve stem 4, the outer wall of the upper valve stem 4 is rotationally connected to the outer shell 5, and the upper end penetrates through the outer shell 5. A fixed ring 2 is connected inside the handle 1, and the upper end of the upper valve stem 4 is fixedly connected to the fixed ring 2. A sealing ring 6 is arranged between the valve core 7 and the inner wall of the outer shell 5. A washer 3 is arranged on the lower end surface of the fixed ring 2. The outer shell 5 is made of PVC material. The upper end of the handle 1 is connected to a handle cover 10. A nameplate 11 is connected to the outer wall at one end of the outer shell 5.

[0019] The external dimensions of this gas measurement ball valve are: 135mm×110mm×125mm; the weight is 0.5kg. The ball valve can work normally under the following conditions: ambient temperature: -10°C to +40°C; ambient humidity: ≤95% (when the ambient temperature is +25°C); atmospheric pressure: 80kPa to 106kPa; in the coal mine underground with explosive mixtures but no corrosive gases that damage insulation. The harsh storage and transportation conditions that the ball valve can withstand are: storage temperature: -40°C to 60°C; vibration: 50m / s2; impact: 500m / s2.

[0020] This ball valve for gas measurement is provided with a gas measurement port 8, so that the ball valve is equipped with a gas measurement nozzle by itself, which is convenient for gas measurement of the gas drainage pipeline; and the outer shell is made of PVC, having the advantages of antistatic and flame retardant resistance.

[0021] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ball valve for gas measurement, characterized in that: The invention comprises a shell (5), a side wall at one end of which is connected to a gas measuring port (8), and the outer end of the gas measuring port (8) is connected to a gas measuring port sealing sleeve; a valve core (7) is arranged inside the shell (5), and the lower end of the valve core (7) is rotatably connected to the inner wall of the shell (5) through a lower valve stem (9); the upper end of the valve core (7) is connected to an upper valve stem (4), the outer wall of the upper valve stem (4) is rotatably connected to the shell (5), and the upper end passes through the shell (5); a fixing ring (2) is connected inside the handle (1), and the upper end of the upper valve stem (4) is fixedly connected to the fixing ring (2).

2. The gas measuring ball valve according to claim 1, characterized in that: A sealing ring (6) is provided between the valve core (7) and the inner wall of the housing (5).

3. The gas measuring ball valve according to claim 1, characterized in that: A gasket (3) is provided on the lower end surface of the fixing ring (2).

4. The gas measuring ball valve according to claim 1, characterized in that: The shell (5) is made of PVC material.

5. The gas measuring ball valve according to claim 1, characterized in that: The upper end of the handle (1) is connected to a handle cover (10).

6. The gas measuring ball valve according to claim 1, characterized in that: A nameplate (11) is connected to the outer wall of one end of the housing (5).

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