Large-flow slurry conveying one-way valve bank

Abstract

The large-flow slurry conveying one-way valve set comprises a valve box, a slurry inlet pipe is arranged at one end of the valve box, a slurry outlet pipe is arranged at the other end of the valve box, a slurry inlet valve seat is arranged at the position, close to the slurry inlet pipe, in the valve box, a slurry outlet valve seat is arranged at the position, close to the slurry outlet pipe, in the valve box, and the side wall of the valve box is communicated with one end of a pump pipe. When large-flow slurry is conveyed, the valve box adopts a multi-valve mode, and the appearance and the mass of a single valve body are small, so that quick opening and closing of the valve group are realized, the overflowing capacity is improved, the impact force formed when the single large valve body is opened and closed is dispersed, and the vibration and the noise are reduced; when the working pressure of a pumping system is large, the pressure applied to the ball valve is large, the ball valve can be tightly attached to the conical opening, the spherical outer surface can make contact with the conical opening to form a linear sealing belt when the pressure is applied, particle slurry is well isolated, leakage of pressure slurry in a sealing chamber is avoided, and the sealing reliability of the valve body is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, concretely relates to a big flow mud delivery check valve group. BACKGROUND

[0002] Check valve is the direction control valve that fluid can only flow in one direction and cannot flow reversely, commonly known as check valve. Check valve is also called non-return valve or back check valve. It is used in hydraulic system to prevent oil flow reversely, or used in pneumatic system to prevent compressed air flow reversely. Check valve has straight-through type and right-angle type. Straight-through type check valve is installed on pipeline by screw thread connection. Right-angle type check valve has screw thread connection, plate type connection and flange connection. In mud and liquid delivery system, check valve as key component is widely used in various fluid control occasions. Traditional check valve often shows limited flow capacity and poor sealing performance when facing big flow, high pressure and complex medium environment, thereby affecting stability and reliability of the whole system. SUMMARY

[0003] Therefore, the utility model wants to solve the problem of limited flow capacity and poor sealing performance when facing big flow, high pressure and complex medium environment in prior art.

[0004] Therefore, the technical scheme adopted is that the utility model relates to a big flow mud delivery check valve group, which comprises: a valve box, a slurry inlet pipe arranged at one end of the valve box, a slurry outlet pipe arranged at the other end of the valve box, a slurry inlet valve seat arranged in the valve box close to the slurry inlet pipe, a first conical port arranged on the slurry inlet valve seat, a first ball valve arranged on the first conical port, a slurry outlet valve seat arranged in the valve box close to the slurry outlet pipe, a second conical port arranged on the slurry outlet valve seat, a second ball valve arranged on the second conical port, and a pump pipe in communication with one end of the valve box.

[0005] Preferably, the valve box is in the shape of a circular tube.

[0006] Preferably, the slurry inlet pipe and the slurry outlet pipe are variable-diameter pipes.

[0007] Preferably, the bottom end of the slurry outlet valve seat is connected to one end of a limiting rod, and the other end of the limiting rod faces the first ball valve.

[0008] Preferably, a first blocking column is arranged on the slurry inlet valve seat around the first ball valve, and a second blocking column is arranged on the slurry outlet valve seat around the second ball valve.

[0009] Preferably, a baffle is arranged on the inner wall of the slurry outlet pipe above the second ball valve, and a slurry outlet port is arranged on the baffle.

[0010] Preferably, the valve box and the slurry inlet pipe are connected through a first flange, the valve box and the slurry outlet pipe are connected through a second flange, and a flange is arranged at the end of the pump pipe away from the valve box.

[0011] The technical scheme of the utility model has the following advantages: when conveying large flow mud, the valve box adopts a multi-valve mode, the single valve body is small in shape and mass, thereby realizing quick opening and closing of the valve group, improving flow capacity, dispersing impact force formed when a single large valve body is opened and closed, reducing vibration and noise, the pumping system has large working pressure, the pressure applied on the ball valve is large, the ball valve can tightly adhere to the conical port, the outer surface of the ball can be in linear sealing band with the conical port when pressure is applied, the granular slurry is well isolated, leakage of the slurry in the sealing chamber is avoided, and the sealing reliability of the valve body is improved.

[0012] Other features and advantages of the utility model will be set forth in the following description, and some of them will become apparent from the description, or will be learned from the practice of the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structure specially pointed out in the written description and the drawings.

[0013] The technical scheme of the utility model will be further described in detail below by means of the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0015] Fig. 1 It is the structural schematic diagram of the utility model;

[0016] Fig. 2 It is the three-dimensional structural schematic diagram of the utility model;

[0017] Among them, 1, valve box, 2, into the slurry pipe, 3, the slurry pipe, 4, into the slurry valve seat, 5, first conical port, 6, first ball valve, 7, the slurry valve seat, 8, second conical port, 9, second ball valve, 10, pump pipe, 11, limit rod, 12, first blocking column, 13, second blocking column, 14, baffle, 15, slurry outlet, 16, first flange, 17, second flange, 18, method flange. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clear and obvious, the utility model is further described in detail below by means of the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] It should be noted that when a component is referred to as being "fixed" or "set" on another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected" to another component, it can be directly or indirectly connected to the other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0021] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0022] The utility model provides a kind of large-flow slurry delivery check valve set, as shown in Figs. 1-2 It includes: valve box 1, valve box 1 one end is provided with slurry inlet pipe 2, valve box 1 other end is provided with slurry outlet pipe 3, valve box 1 is provided with slurry inlet valve seat 4 close to slurry inlet pipe 2, slurry inlet valve seat 4 is connected with the inner wall of valve box 1, first tapered port 5 is provided on slurry inlet valve seat 4, first ball valve 6 is provided on first tapered port 5, valve box 1 is provided with slurry outlet valve seat 7 close to slurry outlet pipe 3, slurry outlet valve seat 7 is connected with the inner wall of valve box 1, second tapered port 8 is provided on slurry outlet valve seat 7, second ball valve 9 is provided on second tapered port 8, the side wall of valve box 1 is communicated with one end of pump pipe 10.

[0023] The valve box 1 is circular tube shape, so that the pressure is uniformly distributed on the whole tube wall, thereby improving its pressure bearing capacity. The inlet pipe 2 and the outlet pipe 3 are all variable diameter pipes, the flow of multiple valve groups is merged into the large flow main pipe, thereby reducing the flow resistance. The bottom end of the outlet valve seat 7 is connected with one end of the limiting rod 11, the other end of the limiting rod 11 is towards the first ball valve 6, thereby limiting the displacement of the first ball valve 6 in the vertical direction. The first blocking column 12 is arranged on the inlet valve seat 4 and located at the periphery of the first ball valve 6, thereby limiting the displacement of the first ball valve 6 in the horizontal direction. The second blocking column 13 is arranged on the outlet valve seat 7 and located at the periphery of the second ball valve 9, thereby limiting the displacement of the second ball valve 9 in the horizontal direction. The baffle 14 is arranged on the inner wall of the outlet pipe 3 and located above the second ball valve 9, thereby limiting the displacement of the second ball valve 9 in the vertical direction, and the outlet port 15 is arranged on the baffle 14. The valve box 1 is connected with the inlet pipe 2 through the first flange 16, the valve box 1 is connected with the outlet pipe 3 through the second flange 17, and the method flange 18 is arranged on the end of the pump pipe 10 far away from the valve box 1, thereby facilitating the connection with the pump. The valve seat and the ball valve can be arranged in multiple groups, thereby improving the flow capacity of the mud, and the valve seat and the ball valve are made of wear-resistant materials, such as rubber.

[0024] The beneficial technical effects of the above technical scheme are as follows: the pump pipe 10 is communicated with the output end of the plunger pump, when the plunger pump works, the volume of the working chamber changes to realize the suction of the mud by the valve box 1 and the discharge of the mud by the valve box 1, when the valve box 1 sucks the mud, the valve box is in a negative pressure state, the mud enters from the inlet pipe 2, the first ball valve 6 moves upward, the first conical port 5 is opened, the second ball valve 9 tightly abuts on the second conical port 8, when the valve box 1 discharges the mud, the valve box is in a positive pressure state, the first ball valve 6 blocks the first conical port 5, the second ball valve 9 moves upward and is in an open state, the valve box 1 discharges the mud, thereby continuously unidirectionally conveying the mud from the inlet pipe 2 to the outlet pipe 3. When conveying large flow mud, the valve box adopts a multiple valve mode, the single valve body is small in shape and quality, thereby realizing the rapid opening and closing of the valve group, improving the flow capacity, dispersing the impact force formed when the single large valve body is opened and closed, reducing the vibration and noise, the working pressure of the pumping system is large, the pressure applied on the ball valve is large, the ball valve can tightly abut on the conical port, the outer surface of the ball can be in linear contact with the conical port under the pressure, thereby realizing good isolation of the particle slurry, avoiding the leakage of the pressure slurry in the sealing chamber, and improving the sealing reliability of the valve body.

[0025] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A one-way valve assembly for high-flow-rate mud conveying, characterized in that, include: A valve box (1) is provided with a slurry inlet pipe (2) at one end and a slurry outlet pipe (3) at the other end. A slurry inlet valve seat (4) is provided inside the valve box (1) near the slurry inlet pipe (2). A first conical opening (5) is provided on the slurry inlet valve seat (4). A first ball valve (6) is provided on the first conical opening (5). A slurry outlet valve seat (7) is provided inside the valve box (1) near the slurry outlet pipe (3). A second conical opening (8) is provided on the slurry outlet valve seat (7). A second ball valve (9) is provided on the second conical opening (8). The side wall of the valve box (1) is connected to one end of the pump pipe (10).

2. The one-way valve assembly for high-flow-rate mud conveying according to claim 1, characterized in that, The valve box (1) is a circular tube.

3. The one-way valve assembly for high-flow-rate mud conveying according to claim 1, characterized in that, Both the slurry inlet pipe (2) and the slurry outlet pipe (3) are variable diameter pipes.

4. A one-way valve assembly for high-flow-rate mud conveying according to claim 1, characterized in that, The bottom end of the slurry valve seat (7) is connected to one end of the limiting rod (11), and the other end of the limiting rod (11) faces the first ball valve (6).

5. A one-way valve assembly for high-flow-rate mud conveying according to claim 1, characterized in that, A first baffle (12) is provided on the slurry inlet valve seat (4) around the first ball valve (6), and a second baffle (13) is provided on the slurry outlet valve seat (7) around the second ball valve (9).

6. A one-way valve assembly for high-flow-rate mud conveying according to claim 1, characterized in that, A baffle (14) is provided on the inner wall of the slurry pipe (3) above the second ball valve (9), and a slurry outlet (15) is provided on the baffle (14).

7. A one-way valve assembly for high-flow-rate mud conveying according to claim 1, characterized in that, The valve box (1) is connected to the slurry inlet pipe (2) via the first flange (16), and the valve box (1) is connected to the slurry outlet pipe (3) via the second flange (17). A flange (18) is provided at the end of the pump pipe (10) away from the valve box (1).

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