A vertical plunger pump cylinder structure

Abstract

A kind of vertical plunger pump cylinder structure, by being arranged V-shaped seal between plunger barrel and plunger, and V-shaped seal top is also pressed with sealing ring, plunger barrel lower part is connected with left side discharge valve seat by being equipped with connecting tee joint, and connecting tee joint and discharge valve seat are also sequentially connected with connecting straight through and connecting elbow, and second steel ball is placed on discharge valve seat and its outer side surface is connected with upper cylinder barrel, and upper cylinder barrel upper part is discharge port;Connecting tee joint lower part is equipped with suction valve seat and first steel ball is placed on suction valve seat upper part, and suction valve seat lower part is provided with suction port, and the overall sealing property is improved.

Description

Technical Field

[0001] This utility model belongs to the field of plunger pump technology, and specifically relates to a vertical plunger pump cylinder structure. Background Technology

[0002] Vertical piston pumps are a common type of positive displacement pump, widely used in high-pressure, high-flow-rate liquid transportation applications. The slurry cylinder structure is typically used in the pump body for conveying high-viscosity media, media containing solid particles, or corrosive media (such as mud, mortar, and chemical raw materials). In different application scenarios, the slurry cylinder structure of a vertical piston pump is adjusted according to specific operating conditions (such as media type, working pressure, and temperature) to ensure optimal performance and reliability.

[0003] Vertical grouting pumps are small in size and well-suited for the confined spaces of fully mechanized coal mining faces. Currently, piston pumps are mainly used on-site, but their cylinders have poor wear resistance, resulting in high replacement costs. Furthermore, their grout channels are small, making them suitable only for polyurethane or phenolic liquid polymer materials. They are less adaptable to materials such as cement and fly ash. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the existing technology by providing a vertical plunger pump cylinder structure that improves durability.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0006] A vertical plunger pump cylinder structure includes a plunger cylinder, a plunger, and a V-shaped seal disposed between the two, with a sealing pressure ring pressed onto the top of the V-shaped seal.

[0007] The lower part of the plunger cylinder is connected to the slurry discharge valve seat on the left side through the provided connecting tee. A connecting straight and a connecting elbow are connected between the connecting tee and the slurry discharge valve seat in sequence. A second steel ball is placed on the slurry discharge valve seat and its outer side is connected to the upper cylinder. The upper part of the upper cylinder is the slurry outlet.

[0008] The lower part of the connecting tee is equipped with a suction valve seat and a first steel ball is placed on the upper part of the suction valve seat, while the lower part of the suction valve seat has a suction port.

[0009] Both the suction valve seat and the discharge valve seat are embedded with tungsten steel rings for placing steel balls, and the tungsten steel rings and steel balls form a sealing structure.

[0010] The discharge valve seat is connected to the upper cylinder via a threaded connection.

[0011] The connecting tee and the connecting straight are connected by the provided connecting nut.

[0012] The connecting elbow is a 90-degree elbow.

[0013] The connecting elbow and the slurry discharge valve seat are also connected by threaded connections.

[0014] The lower part of the plunger cylinder is connected to the connecting tee via threads.

[0015] The beneficial effects of this utility model are:

[0016] (1) The vertical plunger pump slurry cylinder structure is improved by arranging a V-shaped seal between the plunger cylinder and the plunger, and a sealing pressure ring is pressed on the top of the V-shaped seal. The lower part of the plunger cylinder is connected to the slurry discharge valve seat on the left side through the connecting tee. A connecting straight and a connecting elbow are connected between the connecting tee and the slurry discharge valve seat in sequence. A second steel ball is placed on the slurry discharge valve seat and its outer side is connected to the upper cylinder. The upper part of the upper cylinder is the slurry outlet. A slurry suction valve seat is provided at the lower part of the connecting tee and a first steel ball is placed on the upper part of the slurry suction valve seat. A slurry suction port is opened at the lower part of the slurry suction valve seat.

[0017] (2) Both the suction valve seat and the discharge valve seat are embedded with tungsten steel rings. The tungsten steel rings and steel balls form a sealing structure. The tungsten steel rings are resistant to acid and alkali corrosion, have high strength and high durability, which improves the overall durability.

[0018] (3) All components are readily available, and the cost of replacing parts is low. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the plunger pump suction process;

[0021] Figure 3 This is a schematic diagram of the slurry discharge process of a plunger pump. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0023] This utility model provides a vertical plunger pump slurry cylinder structure, such as... Figures 1 to 3 As shown.

[0024] A vertical plunger pump slurry cylinder structure includes a plunger cylinder 1, a plunger 2, and a V-shaped seal 3 sealed between the two. A sealing pressure ring 4 is also pressed on the top of the V-shaped seal 3. The lower part of the plunger cylinder 1 is connected to the slurry discharge valve seat 6 on the left side through a connecting tee 5. A connecting straight 7 and a connecting elbow 8 are connected sequentially between the connecting tee 5 and the slurry discharge valve seat 6. A second steel ball 61 is placed on the slurry discharge valve seat 6, and its outer side is connected to the upper cylinder 9. The upper part of the upper cylinder 9 is the slurry outlet 91. A slurry suction valve seat 10 is provided at the lower part of the connecting tee 5, and a first steel ball 101 is placed on the upper part of the slurry suction valve seat 10. A slurry suction port 102 is opened at the lower part of the slurry suction valve seat 101.

[0025] Both the suction valve seat 10 and the discharge valve seat 6 are embedded with tungsten steel rings 103 for placing steel balls, and the tungsten steel rings 103 and the steel balls form a sealing structure. The tungsten steel rings 103 are resistant to acid and alkali corrosion, have high strength, and high durability.

[0026] The discharge valve seat 6 is connected to the upper cylinder 9 by thread; the connecting elbow 8 is also connected to the discharge valve seat 6, the lower part of the plunger cylinder 1 is connected to the connecting tee 5 by thread; and the connecting tee 5 is connected to the connecting straight 7 by the provided connecting nut 104.

[0027] In this embodiment, the connecting elbow is a 90-degree elbow, and the horizontal connection to the straight section 7 leads to the upward-facing connection to the slurry discharge valve seat 6.

[0028] The working principle is as follows:

[0029] Under the power of a cylinder or hydraulic cylinder, the plunger pump causes the plunger 2 to move upward. Under the sealing action of the V-type seal 3, a negative pressure is formed inside the plunger cylinder 1. The first steel ball 101 at the suction valve seat 101 rises, and the second steel ball 61 at the discharge valve seat 6 falls. That is, the suction valve seat 10 opens, the discharge valve seat 6 seals, and the slurry enters the plunger cylinder 1 through the suction port 102. The plunger 2 ends its stroke, completing the slurry suction work.

[0030] After the cylinder or oil cylinder reverses direction, the plunger moves downward. Under the sealing action of the V-type seal 3, a positive pressure is formed inside the plunger cylinder 1. The first steel ball at the slurry suction valve seat descends, and the second steel ball at the slurry discharge valve seat rises. That is, the slurry suction valve seat closes, the slurry discharge valve seat opens, and the slurry is discharged through the slurry outlet. The plunger stroke ends, and the slurry discharge work is completed.

[0031] If this patent uses terms such as "first" and "second" to define components, those skilled in the art should know that the use of "first" and "second" is merely for the convenience of describing this utility model and simplifying the description, and the above terms have no special meaning.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0033] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

Claims

1. A vertical plunger pump cylinder structure, characterized in that: It includes a plunger cylinder, a plunger, and a V-shaped seal between the two, with a sealing ring pressed onto the top of the V-shaped seal; The lower part of the plunger cylinder is connected to the slurry discharge valve seat on the left side through the provided connecting tee. A connecting straight and a connecting elbow are connected between the connecting tee and the slurry discharge valve seat in sequence. A second steel ball is placed on the slurry discharge valve seat and its outer side is connected to the upper cylinder. The upper part of the upper cylinder is the slurry outlet. The lower part of the connecting tee is equipped with a suction valve seat and a first steel ball is placed on the upper part of the suction valve seat, while the lower part of the suction valve seat has a suction port.

2. The vertical plunger pump cylinder structure according to claim 1, characterized in that: Both the suction valve seat and the discharge valve seat are embedded with tungsten steel rings for placing steel balls, and the tungsten steel rings and steel balls form a sealing structure.

3. The vertical plunger pump cylinder structure according to claim 1, characterized in that: The discharge valve seat is connected to the upper cylinder via a threaded connection.

4. The vertical plunger pump cylinder structure according to claim 1, characterized in that: The connecting tee and the connecting straight are connected by the provided connecting nut.

5. The vertical plunger pump cylinder structure according to claim 1, characterized in that: The connecting elbow is a 90-degree elbow.

6. A vertical plunger pump cylinder structure according to any one of claims 1 to 5, characterized in that: The connecting elbow and the slurry discharge valve seat are connected by threaded connections.

7. The vertical plunger pump cylinder structure according to claim 6, characterized in that: The lower part of the plunger cylinder is connected to the connecting tee via threads.

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