Fracturing water injection pipe valve

Abstract

The invention discloses a fracturing water injection pipe valve which comprises a valve body and a main body structure used for controlling water flowing, and water flows out through the valve body. The control component comprises a valve seat and a control rod, a water inlet and a water outlet are formed in the two ends of the valve body respectively, the valve seat is arranged at the upper end of the center of the valve body, the valve body and the valve seat are fixed through a bolt, the control rod is arranged in the valve seat, and a sealing mechanism is arranged at the lower end of the control rod; the problems that in the sealing process of the valve after fracturing water injection is completed, part of impurities can be left in a sealed gap, and the part of impurities can cause damage to the valve and the phenomenon of incomplete sealing in the sealing process are solved. The main flow channel and the branch flow channel are arranged in the plugging plate, and in the sealing process, the main flow channel and the branch flow channel can be used for cleaning the interior of the equipment, so that the situation that impurities fall into the sealed position when the equipment is completely sealed, and consequently the equipment is abraded is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mines, and particularly to a valve for a fracturing water injection pipe. Background Art

[0002] Coal mines are a common type of energy source in daily life. When coal mines are mined, coal mine fracturing technology is required. During the fracturing process, valves are needed to control the water flow into the mine pit. However, general valves have some disadvantages when in use. For example: During the fracturing process, impurities such as sand and gravel are injected into the water to cooperate with the fracturing. As a result, when the valve is closed, impurities will remain at the closing position, causing wear of the equipment during closing and easily resulting in a phenomenon where there are gaps in the closure, which is not conducive to the use of the equipment. Summary of the Invention

[0003] The purpose of the present invention is to provide a valve for a fracturing water injection pipe to solve the problem proposed in the above background art that during the closing process after fracturing water injection of the existing valve, some impurities will remain in the closing gap, and these impurities will cause damage to the valve and incomplete sealing during closing.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a valve for a fracturing water injection pipe, including: A valve body, which is the main structure for controlling the water flow, and the water flows out through the valve body; A control component, the control component includes a valve seat and a control rod. The two ends of the valve body are respectively an inlet and an outlet. A valve seat is provided at the upper end of the center of the valve body, and the valve body and the valve seat are fixed by bolts. A control rod is provided inside the valve seat, and a closing mechanism is provided at the lower end of the control rod.

[0005] Further, the valve seat and the control rod are in threaded connection, and a closing mechanism is rotatably provided at the lower end of the control rod.

[0006] Further, the closing mechanism includes a limiting plate and a blocking plate. The limiting plate is rotatably provided below the control rod, and a blocking plate is provided at the lower end of the limiting plate.

[0007] Further, the cross-section of the blocking plate is the same as the cross-section of the inner flow channel of the valve body. A main flow channel in a "ji" shape is opened inside the blocking plate, and a control mechanism is correspondingly provided inside the main flow channel.

[0008] Furthermore, the control mechanism includes a blocking rod, a first closed ring and a second closed ring. A fixed channel is provided below the flow channel of the valve body. Two blocking rods are provided at the center of the fixed channel. The two blocking rods are embedded in the interior of the main channel. The outer side of the blocking rod is provided with a second closed ring and a first closed ring from the embedded end to the other end. The diameter of the second closed ring is smaller than the diameter of the first closed ring, and the second closed ring and the first closed ring are respectively engaged with the main channel.

[0009] Furthermore, branch channels are provided on both sides of the main channel, and clamping blocks are provided at corresponding inner corners of the fixed channel, and the clamping blocks are engaged with the branch channels.

[0010] Compared with the prior art, the advantages of the present invention are: The present invention uses the thread of the control rod to change its height when it rotates, thereby adjusting the height of the limit plate and the sealing plate to achieve the effect of controlling the flow of fluid in the valve body. Since the height is adjusted by the thread, the effect of rapid adjustment can be achieved, and the device structure is simple. When a problem occurs, the device can be opened by separating the valve seat, which facilitates maintenance of the interior of the device.

[0011] Based on the above beneficial effects, by setting up the main channel and branch channel in the sealing plate, the main channel and branch channel can be used to clean the interior of the equipment during the sealing process, thereby avoiding impurities falling into the closed area when it is completely closed, causing wear of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing 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 creative work.

[0013] Figure 1 It is an overall three-dimensional schematic diagram of the present invention; Figure 2 It is a schematic front cross-sectional view of the entire present invention; Figure 3 This is a schematic diagram of water flow cleaning when the valve body of the present invention is closed; Figure 4 This is a schematic diagram of particle residue after the valve body is closed according to the present invention.

[0014] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Valve body; 2. Valve seat; 3. Control rod; 4. Limit plate; 5. Blocking plate; 6. Main channel; 7. Branch channel; 8. Fixed channel; 9. Blocking rod; 10. First closed ring; 11. Second closed ring; 12. Block. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0018] See also Figure 1-4 As shown, this embodiment is a fracturing water injection pipe valve, comprising: Valve body 1 is the main structure for controlling the flow of water, through which water flows out; The control component includes a valve seat 2 and a control rod 3. The two ends of the valve body 1 are the water inlet and the water outlet respectively. The valve seat 2 is provided at the upper end of the center of the valve body 1, and the valve body 1 and the valve seat 2 are fixed by bolts. The control rod 3 is provided inside the valve seat 2, and the lower end of the control rod 3 is provided with a closing mechanism.

[0019] The valve seat 2 and the control rod 3 are threadedly connected, and a closing mechanism is rotatably provided at the lower end of the control rod 3 .

[0020] When the device is in use, the valve body 1 and the valve seat 2 can be separated or installed by the bolts between the two, so that the interior of the valve body 1 can be opened for internal inspection. At the same time, the valve body 1 and the valve seat 2 can be fixed with bolts to facilitate use. The control rod 3 and the valve seat 2 are threadedly connected, so the control rod 3 can be rotated to move the control rod 3 and the closing mechanism up and down, thereby adjusting the height of the closing mechanism.

[0021] The closing mechanism includes a limit plate 4 and a blocking plate 5 . The limit plate 4 is rotatably arranged below the control rod 3 , and the blocking plate 5 is arranged at the lower end of the limit plate 4 .

[0022] When the device is in use, the limit plate 4 can close the upper end of the flow channel in the valve body 1, thereby preventing water from flowing upward. At the same time, the limit plate 4 can also play a limiting role. The limit plate 4 can only move up and down in the valve body 1, so when the control lever 3 is rotated, only the height of the limit plate 4 and the sealing plate 5 will be adjusted.

[0023] The cross-section of the blocking plate 5 is the same as that of the flow channel in the valve body 1. A main flow channel 6 in the shape of a "ji" character is opened inside the blocking plate 5, and a control mechanism is correspondingly arranged inside the main flow channel 6.

[0024] When the blocking plate 5 descends, the blocking plate 5 will gradually close the flow channel in the valve body 1, while the fluid can still flow in the main flow channel 6.

[0025] The control mechanism includes a blocking rod 9, a first sealing ring 10 and a second sealing ring 11. A fixed channel 8 is arranged below the flow channel of the valve body 1. Two blocking rods 9 are arranged at the center of the fixed channel 8. The two blocking rods 9 are embedded and installed inside the main flow channel 6. A second sealing ring 11 and a first sealing ring 10 are respectively arranged on the outer side of the blocking rod 9 from the embedded end to the other end. The diameter of the second sealing ring 11 is smaller than that of the first sealing ring 10, and the second sealing ring 11 and the first sealing ring 10 are respectively engaged with the main flow channel 6.

[0026] When closing the flow channel, the fluid will flow through the main flow channel 6. Since the diameter of the main flow channel 6 is small, impurities can be avoided from entering. Thus, the blocking rod 9, the first sealing ring 10 and the second sealing ring 11 can be cleaned by the fluid, avoiding wear of the equipment caused by large particle impurities during closing, and further extending the service time of the equipment; When the blocking plate 5 moves to the bottom, the main flow channel 6 will be closed by the first sealing ring 10 and the second sealing ring 11, thereby controlling the fluid.

[0027] Branch flow channels 7 are opened on both sides of the main flow channel 6. Clamping blocks 12 are correspondingly arranged at the internal corners of the fixed channel 8. The clamping blocks 12 are engaged with the branch flow channels 7.

[0028] During the closing process, the fluid will flow through the branch flow channels 7 and the fixed channel 8. Since the diameter of the branch flow channels 7 is small, impurities can also be avoided from flowing through the branch flow channels 7, thereby cleaning the inside of the fixed channel 8. After closing, there is still a gap reserved between the blocking plate 5 and the fixed channel 8, thus avoiding wear of the equipment caused by impurities.

[0029] Working principle: When the device is in use, the height of the limiting plate 4 and the blocking plate 5 can be controlled by the control rod 3, so as to use the blocking plate 5 to close the valve body 1; During the closing process, the impurities of the equipment will be cleaned by using the main flow channel 6 and the branch flow channels 7. The cross-sections of the fluid inlet ends of the main flow channel 6 and the branch flow channels 7 are small, which can play a filtering role. The cross-sections of the fluid discharge ends of the main flow channel 6 and the branch flow channels 7 are large, which can allow the impurities to flow out, thus avoiding wear of the impurities and the equipment during closing, affecting the airtightness, and avoiding the fluid flow in the valve body 1 when the blocking plate 5 moves completely.

[0030] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fracturing water injection pipe valve, characterized in that: Comprising: A valve body (1), which is the main structure for controlling the flow of water, and water flows out through the valve body (1); A control component, the control component includes a valve seat (2) and a control rod (3), both ends of the valve body (1) are respectively an inlet and an outlet, a valve seat (2) is provided at the upper end of the center of the valve body (1), and the valve body (1) and the valve seat (2) are fixed by bolts. A control rod (3) is provided inside the valve seat (2), and a closing mechanism is provided at the lower end of the control rod (3).

2. A fracturing water injection pipe valve according to claim 1, characterized in that: The valve seat (2) and the control rod (3) are threadedly connected, and a closing mechanism is rotatably provided at the lower end of the control rod (3).

3. The fracturing water injection pipe valve according to claim 1, characterized in that: The closing mechanism includes a limiting plate (4) and a plugging plate (5), the limiting plate (4) is rotatably provided below the control rod (3), and a plugging plate (5) is provided at the lower end of the limiting plate (4).

4. A fracturing water injection pipe valve according to claim 3, characterized in that: The cross-section of the plugging plate (5) is the same as the cross-section of the inner flow channel of the valve body (1). A main flow channel (6) in the shape of a "ji" character is opened inside the plugging plate (5), and a control mechanism is correspondingly provided inside the main flow channel (6).

5. The fracturing water injection pipe valve according to claim 4, characterized in that: The control mechanism includes a plugging rod (9), a first closing ring (10) and a second closing ring (11). A fixed channel (8) is provided below the flow channel of the valve body (1). Two plugging rods (9) are provided at the center of the fixed channel (8). The two plugging rods (9) are embedded and installed inside the main flow channel (6). A second closing ring (11) and a first closing ring (10) are respectively provided on the outer side of the plugging rod (9) from the embedded end to the other end. The diameter of the second closing ring (11) is smaller than the diameter of the first closing ring (10), and the second closing ring (11) and the first closing ring (10) are respectively engaged with the main flow channel (6).

6. The fracturing water injection pipe valve according to claim 4, characterized in that: Branch channels (7) are opened on both sides of the main flow channel (6), and clamping blocks (12) are correspondingly provided at the inner corners of the fixed channel (8), and the clamping blocks (12) are engaged with the branch channels (7).

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