A high-pressure ceramic plunger mud pump sealing structure

Abstract

The utility model discloses a high pressure ceramic plunger slurry pump sealing structure relates to slurry pump technical field, and its technical key points include pump body, ceramic column valve stem and hydraulic cylinder, the pump body lateral wall fixedly connected with the placement ring, be equipped with the sewage discharge mechanism for guiding the sewage discharge on the placement ring, the sewage discharge mechanism includes the first protective cover with second protective cover of setting on the placement ring upper end, the placement ring lower extreme is equipped with a plurality of screws, the utility model discloses a sewage discharge mechanism is set, and the first protective cover and second protective cover of setting on the pump body outside constitute the closed collection structure, realize sewage concentration, thorough discharge, reduce sewage residue, the sealing structure is stable and reliable, not only prolongs the service life of pump body, ceramic column valve stem and so on core components, also reduced the equipment cleaning and maintenance cost, has promoted the work environment neatness.

Description

Technical Field

[0001] This utility model relates to the field of mud pump technology, and in particular to a sealing structure for a high-pressure ceramic plunger mud pump. Background Technology

[0002] High-pressure ceramic plunger mud pumps are key conveying equipment in industrial fields (such as mine filling, building foundation pit dewatering, and geological exploration drilling fluid transportation). Its core components include the pump body, ceramic plunger valve stem, and hydraulic cylinder. With the excellent wear resistance, erosion resistance, and corrosion resistance of the ceramic plunger valve stem, it can stably convey mud media containing solid particles under high pressure conditions, meeting the needs of high-concentration and high-pressure transportation.

[0003] However, the structural design of traditional high-pressure ceramic plunger mud pumps has significant defects: traditional equipment has two ceramic plunger valve stems installed in the two pump bodies respectively. During the reciprocating relative motion between the pump body and the ceramic plunger valve stems, due to insufficient sealing performance between the pump body and components, sewage will be continuously carried out from the top of the pump body. This sewage lacks an effective collection structure and can only flow freely along the outer surface of the pump body. This not only causes continuous corrosion and stain accumulation on the outer surface of the pump body, but may also seep into the connection gap between the pump body and the hydraulic cylinder, as well as the mating parts of the ceramic plunger valve stems, leading to accelerated component wear, seal failure, and shortening the overall service life of the equipment. At the same time, the freely flowing sewage will pollute the working environment, increase the workload and cost of subsequent equipment cleaning and maintenance, and have an adverse effect on the long-term stable operation of the equipment and the cleanliness of the working environment. In order to solve the above problems, this utility model proposes a sealing structure for a high-pressure ceramic plunger mud pump. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-pressure ceramic plunger mud pump sealing structure, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a high-pressure ceramic plunger mud pump sealing structure, comprising: a pump body, a ceramic plunger valve stem and a hydraulic cylinder, wherein a placement ring is fixedly connected to the side wall of the pump body, and a sewage discharge mechanism for guiding the discharge of sewage is provided on the placement ring, the sewage discharge mechanism including a first protective cover and a second protective cover provided at the upper end of the placement ring, a plurality of screws provided at the lower end of the placement ring, a second sealing ring provided on the placement ring, and a sewage discharge pipe communicating with the interior of the first protective cover is provided on the first protective cover, and the first protective cover and the second protective cover are connected by a connecting mechanism.

[0008] Preferably, the connecting mechanism includes multiple connecting plates fixedly connected to the side walls of the first protective cover and the second protective cover, and multiple bolts are provided through the side walls of two adjacent connecting plates.

[0009] Preferably, the sidewalls of the first protective cover and the second protective cover opposite to each other are provided with two sealing strips, and the first protective cover and the second protective cover are provided with a first sealing ring.

[0010] Preferably, a water injection pipe is connected to the second protective cover, and the sewage discharge pipe is inclined.

[0011] Preferably, both the first protective cover and the second protective cover have mounting grooves on their side walls, and the mounting grooves are provided with observation windows.

[0012] Preferably, the plurality of screws are arranged at equal intervals, and the first protective cover and the second protective cover are made of stainless steel.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model, by setting up a sewage discharge mechanism, has a first protective cover and a second protective cover set on the outside of the pump body to form a closed collection structure, realizing centralized and thorough discharge of sewage and reducing sewage residue; the sealing structure is stable and reliable, which not only extends the service life of core components such as pump body and ceramic column valve stem, but also reduces equipment cleaning and maintenance costs and improves the cleanliness of the working environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sealing structure of a high-pressure ceramic plunger mud pump proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of the structure at point A;

[0018] Figure 3 for Figure 1 Side view;

[0019] Figure 4 for Figure 3 Enlarged view of the structure at point B;

[0020] Figure 5 This is a side view of a high-pressure ceramic plunger mud pump sealing structure proposed in this utility model.

[0021] In the diagram: 1 Pump body, 2 Ceramic column valve stem, 3 Hydraulic cylinder, 4 First protective cover, 5 Sewage pipe, 6 Second protective cover, 7 First sealing ring, 8 Second sealing ring, 9 Screw, 10 Placement ring, 11 Bolt, 12 Connecting plate, 13 Sealing strip, 14 Water injection pipe, 15 Observation window. Detailed Implementation

[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] This utility model provides a technical solution:

[0024] Please see Figures 1-5 A high-pressure ceramic plunger mud pump sealing structure includes: a pump body 1, a ceramic plunger valve stem 2 and a hydraulic cylinder 3. A placement ring 10 is fixedly connected to the side wall of the pump body 1. The placement ring 10 is provided with a sewage discharge mechanism for guiding the discharge of sewage. The sewage discharge mechanism includes a first protective cover 4 and a second protective cover 6 provided at the upper end of the placement ring 10. A plurality of screws 9 are provided at the lower end of the placement ring 10. A second sealing ring 8 is provided on the placement ring 10. A sewage discharge pipe 5 communicating with its interior is provided on the first protective cover 4.

[0025] The first protective cover 4 and the second protective cover 6 are connected by a connecting mechanism. The connecting mechanism includes multiple connecting plates 12 that are fixedly connected to the side walls of the first protective cover 4 and the second protective cover 6. Multiple bolts 11 are provided through the side walls of two adjacent connecting plates 12, which allows the first protective cover 4 and the second protective cover 6 to be disassembled separately after the pump body 1, ceramic column valve stem 2 and hydraulic cylinder 3 are assembled, making it convenient to clean the internal stains.

[0026] Furthermore, two sealing strips 13 are provided on the opposite side walls of the first protective cover 4 and the second protective cover 6. The first protective cover 4 and the second protective cover 6 are provided with a first sealing ring 7. The sealing strips 13 can seal the connection between the first protective cover 4 and the second protective cover 6, so that the sewage overflowing from the pump body 1 can only be discharged from the drain pipe 5.

[0027] Furthermore, a water injection pipe 14 is connected to the second protective cover 6, which can be connected to an external clean water source to guide the sewage out, thereby improving the sewage discharge effect. The sewage discharge pipe 5 is set at an angle.

[0028] Furthermore, both the first protective cover 4 and the second protective cover 6 have mounting grooves on their side walls, and observation windows 15 are provided in the mounting grooves. Operators can directly observe the sewage collection volume inside the protective cover, the cleanliness of the pump body 1 surface, and the integrity of the first sealing ring 7 and sealing strip 13 (such as whether there is damage or displacement) through the observation windows 15 without disassembling the protective cover. This design can promptly detect problems such as sewage siltation and sealing failure, shorten the troubleshooting time, avoid the decrease in sealing performance or damage to components caused by frequent disassembly of the protective cover, reduce maintenance costs, and ensure the continuous and stable operation of the equipment.

[0029] Furthermore, the equal spacing of multiple screws 9 ensures uniform force distribution when the placement ring 10 is connected to the side wall of the pump body 1, preventing excessive local stress that could cause deformation or loosening of the placement ring 10. This ensures the structural stability of the first protective cover 4 and the second protective cover 6 after installation via the placement ring 10, preventing the protective covers from shaking during equipment operation. The first protective cover 4 and the second protective cover 6 are made of stainless steel, which has excellent corrosion and wear resistance, resisting the erosion of corrosive substances in sewage and sludge, preventing the protective covers from rusting and being damaged due to long-term contact with sewage. At the same time, stainless steel has high strength and can withstand slight vibrations and external impacts during equipment operation, ensuring that the protective covers can perform their sewage collection and protection functions for a long time.

[0030] In the initial state, the inner walls of the first protective cover 4 and the second protective cover 6, as well as the placement ring 10, are coated with a corrosion-resistant coating. The water injection pipe 14 is connected to an external clean water source through a pipe, and the sewage pipe 5 is connected to the sewage system through a pipe. The ceramic column valve stem 2 is already in the lowest position.

[0031] In practical use, the working principle of this utility model is as follows:

[0032] When the high-pressure ceramic plunger mud pump is running, the sewage generated by the relative movement of the pump body 1 and the ceramic plunger valve stem 2 is confined within the closed space formed by the first protective cover 4 and the second protective cover 6. At this time, the water injection pipe 14 connected to the second protective cover 6 is connected to an external clean water source. After the clean water is injected, it washes the mud stains on the inner walls of the first protective cover 4 and the second protective cover 6 and the surface of the pump body 1, and pushes the sewage to flow towards the inclined sewage pipe 5. At the same time, the sealing strips 13 on the opposite side walls of the first protective cover 4 and the second protective cover 6, the first sealing ring 7 inside, and the second sealing ring 8 on the placement ring 10 form a triple seal to prevent sewage leakage. Finally, the sewage is connected to the external sewage system through the sewage pipe 5 to achieve centralized and directional discharge, avoiding pollution and corrosion caused by sewage flowing along the surface of the pump body 1.

[0033] When cleaning the pump body 1, there is no need to disassemble the overall assembly structure of the pump body 1, ceramic column valve stem 2, and hydraulic cylinder 3. Simply use a tool to unscrew the bolts 11 on the connecting plate 12 to remove the first protective cover 4 and the second protective cover 6 from the placement ring 10. Operators can then thoroughly clean the outer surface of the pump body 1, the surface of the placement ring 10 (including the second sealing ring 8), and the inner walls of the first protective cover 4 and the second protective cover 6 to remove residual mud and sewage stains. After cleaning, reattach the first protective cover 4 and the second protective cover 6 to the placement ring 10, align the connecting plate 12, and then tighten the bolts 11 through the connecting plate 12 to restore the sewage collection function of the protective cover. The entire cleaning process does not require disassembling the main body of the equipment, making the operation convenient and efficient, and significantly reducing the difficulty and workload of cleaning and maintaining the pump body 1.

[0034] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A sealing structure for a high-pressure ceramic plunger mud pump, comprising: The pump body (1), ceramic column valve stem (2) and hydraulic cylinder (3) are characterized in that: a placement ring (10) is fixedly connected to the side wall of the pump body (1), and a sewage discharge mechanism for guiding the discharge of sewage is provided on the placement ring (10). The sewage discharge mechanism includes a first protective cover (4) and a second protective cover (6) provided on the upper end of the placement ring (10). A plurality of screws (9) are provided on the lower end of the placement ring (10). A second sealing ring (8) is provided on the placement ring (10). A sewage discharge pipe (5) communicating with its interior is provided on the first protective cover (4). The first protective cover (4) and the second protective cover (6) are connected by a connecting mechanism.

2. The high-pressure ceramic plunger mud pump sealing structure according to claim 1, characterized in that: The connecting mechanism includes multiple connecting plates (12) fixedly connected to the side walls of the first protective cover (4) and the second protective cover (6), and multiple bolts (11) are provided through the side walls of two adjacent connecting plates (12).

3. The high-pressure ceramic plunger mud pump sealing structure according to claim 2, characterized in that: The first protective cover (4) and the second protective cover (6) are provided with two sealing strips (13) on their opposite side walls, and the first protective cover (4) and the second protective cover (6) are provided with a first sealing ring (7).

4. The high-pressure ceramic plunger mud pump sealing structure according to claim 3, characterized in that: The second protective cover (6) is connected to a water injection pipe (14), and the sewage pipe (5) is set at an angle.

5. The high-pressure ceramic plunger mud pump sealing structure according to claim 4, characterized in that: The first protective cover (4) and the second protective cover (6) are both provided with mounting grooves on their side walls, and observation windows (15) are provided in the mounting grooves.

6. The high-pressure ceramic plunger mud pump sealing structure according to claim 5, characterized in that: The screws (9) are arranged at equal intervals, and the first protective cover (4) and the second protective cover (6) are made of stainless steel.

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