Water conservancy and hydropower control valve with good sealing effect

Abstract

The control valve is good in sealing effect and comprises a control valve body and a sealing mechanism, connecting flanges are fixed to the two ends of the control valve body respectively, the two connecting flanges are fixedly connected with a water pipe, the sealing mechanism is arranged between the connecting flanges and the water pipe, and the water pipe is fixedly connected with the control valve body. Internal threads are arranged at the two ends of the control valve body, an external thread cylinder matched with the internal threads is fixed to one end of the water pipe, the control valve body and the water pipe can be connected more stably, the water pipe and the control valve body are connected in a threaded mode, and the sealing effect is further improved; by arranging a sealing mechanism composed of the first gasket, the first spring gasket, the sealing gasket, the second spring gasket and the second gasket, the sealing effect is greatly improved due to the fact that the single sealing gasket is adopted for sealing, and by arranging the sealing adhesive tape, the corrosion resistance of the sealing position is improved, and sealing can be assisted.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a control valve for water conservancy and hydropower with good sealing effect. Background Art

[0002] The discipline of water conservancy and hydropower engineering is an engineering discipline that regulates and utilizes water resources through engineering or non-engineering measures based on the study of the natural characteristics of water. Hydropower generation projects are one of the important sources of our daily electricity consumption and occupy a large proportion in the country's power supply industry.

[0003] According to announcement number CN213236433U, a control valve for water conservancy and hydropower with good sealing effect is disclosed, including a valve body assembly and a connecting joint, the connecting joint is connected to both sides of the valve body assembly, the connecting joint is provided with a fastener and a connecting pipe, the connecting pipe is inserted into the corresponding connecting joint, the fastener is sleeved on the outer wall of the connecting pipe, and the fastener is inserted into the inside of the connecting joint, a limiting flange is provided on the outer wall of one end of the connecting pipe facing the connecting joint, the right end of the fastener is supported on the side wall of the limiting flange facing away from the connecting joint, the outer wall of the fastener is provided with an external thread, and the connecting pipe can be fastened to the connecting joint through the cooperation of the fastener and the limiting flange; through the cooperation of the connecting column and the clamp, the fastener will not rotate after connection, thereby avoiding loosening; the sealing effect is further improved by the provision of a sealing gasket.

[0004] However, the above-mentioned water conservancy and hydropower control valve with good sealing effect has the following defects:

[0005] Fasteners are used to connect the connecting joints and connecting pipes and are used in conjunction with sealing washers to improve sealing. Using only a single sealing washers and then using fasteners for sealing makes the connection more troublesome, and the fasteners are exposed and easily corroded and damaged, which reduces the sealing and has a poor sealing effect.

[0006] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0007] In view of the problems in the related technology, the utility model proposes a control valve for water conservancy and hydropower with good sealing effect to overcome the above technical problems existing in the existing related technology.

[0008] To this end, the specific technical solutions adopted in this utility model are as follows:

[0009] A control valve for water conservancy and hydropower with good sealing effect includes a control valve body and a sealing mechanism. Both ends of the control valve body are fixed with connecting flanges, and the two connecting flanges are fixedly connected to water pipes by bolts. A sealing mechanism is provided between the connecting flanges and the water pipes. Both ends of the control valve body are provided with internal threads, and one end of the water pipe is fixed with an external threaded barrel matching the internal threads.

[0010] As a further solution of the present invention, a flange with the same specifications as the connecting flange is fixed to one end of the water pipe.

[0011] As a further solution of the present invention, sealing tape is provided on the outside of the connecting flange and the sealing mechanism.

[0012] As a further solution of the present invention, the sealing mechanism includes a first washer, a first spring washer, a sealing washer, a second spring washer and a second washer.

[0013] As a further solution of the present invention, a through hole is provided in the middle of the first washer, the first spring washer, the sealing washer, the second spring washer and the second washer, and a plurality of fixing holes are provided on the first washer, the first spring washer, the sealing washer, the second spring washer and the second washer.

[0014] As a further solution of the present invention, the first washer, the first spring washer, the second spring washer and the second washer are all made of 304 stainless steel.

[0015] As a further solution of the present invention, the sealing gasket is made of rubber.

[0016] The beneficial effects of the present invention are as follows: by arranging a connecting flange, the connection between the control valve body and the water pipe is facilitated, and the connection is more stable; the water pipe and the control valve body are connected in a threaded manner, which further improves the sealing effect; by arranging a sealing mechanism composed of a first gasket, a first spring gasket, a sealing gasket, a second spring gasket and a second gasket, not only a single sealing gasket is used for sealing, but the sealing effect is greatly improved; by arranging a sealing tape and wrapping the sealing tape around the sealed connection, not only the corrosion resistance of the seal is improved, but also auxiliary sealing is performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a water conservancy and hydropower control valve with good sealing effect according to an embodiment of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of a water conservancy and hydropower control valve with good sealing effect according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of a sealing mechanism of a water conservancy and hydropower control valve with good sealing effect according to an embodiment of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of point A of a water conservancy and hydropower control valve with good sealing effect according to an embodiment of the utility model.

[0022] In the picture:

[0023] 1. Control valve body; 2. Sealing mechanism; 3. Connecting flange; 4. Water pipe; 5. Externally threaded barrel; 6. Sealing tape; 7. First gasket; 8. First spring washer; 9. Sealing gasket; 10. Second spring washer; 11. Second gasket; 12. Through hole; 13. Fixing hole; 14. Bolt. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, a control valve for water conservancy and hydropower with good sealing effect is provided.

[0026] Please refer to the instruction manual Figure 1-4According to an embodiment of the present invention, a water conservancy and hydropower control valve with good sealing effect includes a control valve body 1 and a sealing mechanism 2. Both ends of the control valve body 1 are fixed with connecting flanges 3. The two connecting flanges 3 are fixedly connected to the water pipe 4 by bolts 14. A sealing mechanism 2 is provided between the connecting flanges 3 and the water pipe 4. Both ends of the control valve body 1 are provided with internal threads. One end of the water pipe 4 is fixed with an external threaded barrel 5 matching the internal threads. One end of the water pipe 4 is fixed with a flange of the same specification as the connecting flange 3. The external arrangement of the connecting flange 3 and the sealing mechanism 2 is as follows: There is a sealing tape 6, and the sealing mechanism 2 includes a first washer 7, a first spring washer 8, a sealing washer 9, a second spring washer 10 and a second washer 11. A through hole 12 is opened in the middle of the first washer 7, the first spring washer 8, the sealing washer 9, the second spring washer 10 and the second washer 11. A plurality of fixing holes 13 are opened on the first washer 7, the first spring washer 8, the sealing washer 9, the second spring washer 10 and the second washer 11. The first washer 7, the first spring washer 8, the sealing washer 9, the second spring washer 10 and the second washer 11 are all made of 304 stainless steel, and the sealing washer 9 is made of rubber.

[0027] By setting the connecting flange 3, the connection between the control valve body 1 and the water pipe 4 is facilitated, and the connection is more stable. The water pipe 4 and the control valve body 1 are connected in a threaded manner to further improve the sealing effect. By setting the sealing mechanism 2 composed of the first gasket 7, the first spring washer 8, the sealing gasket 9, the second spring washer 10 and the second gasket 11, not only a single sealing gasket 9 is used for sealing, but the sealing effect is greatly improved. By setting the sealing tape 6 and wrapping the sealing tape 6 around the sealed connection, not only the corrosion resistance of the seal is improved, but also auxiliary sealing is performed.

[0028] When in use, first place the first gasket 7, the first spring washer 8, the sealing gasket 9, the second spring washer 10 and the second gasket 11 in sequence on the connecting flanges 3 on both sides of the control valve body 1, then the external threaded barrel 5 at one end of the water pipe 4 is threadedly connected to the control valve body 1, and then fixed with bolts 14, and finally the sealing tape 6 is wrapped around the sealed connection multiple times, which facilitates the connection between the control valve body 1 and the water pipe 4, and the connection is more stable, greatly improving the sealing effect.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A control valve for water conservancy and hydropower with good sealing effect, comprising a control valve body (1) and a sealing mechanism (2), characterized in that: Both ends of the control valve body (1) are fixed with connecting flanges (3), and the two connecting flanges (3) are fixedly connected to the water pipe (4) via bolts (14). A sealing mechanism (2) is provided between the connecting flanges (3) and the water pipe (4). Both ends of the control valve body (1) are provided with internal threads, and one end of the water pipe (4) is fixed with an external threaded barrel (5) matching the internal threads.

2. A water conservancy and hydropower control valve with good sealing effect according to claim 1, characterized in that: A flange having the same specifications as the connecting flange (3) is fixed to one end of the water pipe (4).

3. A water conservancy and hydropower control valve with good sealing effect according to claim 1, characterized in that: Sealing tape (6) is provided on the outside of the connecting flange (3) and the sealing mechanism (2).

4. A water conservancy and hydropower control valve with good sealing effect according to claim 1, characterized in that: The sealing mechanism (2) comprises a first washer (7), a first spring washer (8), a sealing washer (9), a second spring washer (10) and a second washer (11).

5. A water conservancy and hydropower control valve with good sealing effect according to claim 4, characterized in that: A through hole (12) is provided in the middle of each of the first washer (7), the first spring washer (8), the sealing washer (9), the second spring washer (10) and the second washer (11); and a plurality of fixing holes (13) are provided on each of the first washer (7), the first spring washer (8), the sealing washer (9), the second spring washer (10) and the second washer (11).

6. A water conservancy and hydropower control valve with good sealing effect according to claim 4, characterized in that: The first washer (7), the first spring washer (8), the second spring washer (10) and the second washer (11) are all made of 304 stainless steel.

7. A water conservancy and hydropower control valve with good sealing effect according to claim 4, characterized in that: The sealing gasket (9) is made of rubber.

Images