A wear-resistant high-pressure gate valve
By incorporating wear-resistant components, including wear-resistant blocks and flow guides, into high-pressure gate valves, the problem of easy wear on the gate plate is solved, resulting in a longer lifespan and easier replacement of the gate plate, thus reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 何钦阳
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-30
AI Technical Summary
The gate of a high-pressure gate valve is prone to failure under the scouring of high-pressure fluid or wear from particulate media, resulting in the need for complete replacement, which wastes resources, incurs high maintenance costs, and causes long downtime.
Wear-resistant components, including wear-resistant blocks and connecting seats, are fixedly connected to the side of the gate near the flow guide. The flow guide reduces the fluid impact angle, the wear-resistant blocks bear the remaining impact, and with the help of sealing buffer pads and threaded connections, easy replacement is achieved.
It significantly extends the service life of the gate, reduces fluid impact damage, improves connection stability and replacement flexibility, and reduces maintenance costs.
Smart Images
Figure CN224433450U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gate valve technology, specifically relating to a wear-resistant high-pressure gate valve. Background Technology
[0002] The primary function of a gate valve is to cut off the flow of media in a pipeline. In a pipeline system, when it is necessary to inspect, maintain, or replace equipment in a certain section of the pipeline, the gate valve can be closed to isolate that section of the pipeline from other parts, prevent the media from continuing to flow, and ensure operational safety. Currently, gate valves are widely used in industries such as power, steel, and chemicals to control the opening or cutting off of fluids in pipelines transporting slag water, slag slurry, wastewater, and colloidal substances.
[0003] In the application of high-pressure gate valves, the wear resistance of the gate is a key factor that determines the service life of the valve. When the gate fails due to the scouring of high-pressure fluid or wear of particulate media, the entire gate must be replaced. Partial repair is not possible, resulting in waste of resources, high maintenance costs, and long downtime. Utility Model Content
[0004] The purpose of this invention is to provide a wear-resistant high-pressure gate valve to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant high-pressure gate valve, comprising a valve control assembly, a valve body, and a gate plate. The valve control assembly is fixedly connected to the outer surface of the valve body. The valve control assembly and the gate plate are movably connected via bearings. The valve body is provided with a flow guide, a sampling assembly, and a wear-resistant assembly. The sampling assembly is fixedly connected to one side of the outer surface of the valve body, and the flow guide for guiding the flow is fixedly connected to the inlet of the valve body. The wear-resistant assembly is fixedly connected to the gate plate on the side near the flow guide.
[0006] The wear-resistant component includes a connecting seat, a wear-resistant block, and bolts, with the side end of the connecting seat connected to the wear-resistant block via bolts.
[0007] The wear-resistant block in the wear-resistant assembly is fixed on the side of the gate plate near the flow guide, which is located in the main impact area after the fluid enters. The flow guide reduces the impact angle and intensity of the fluid on the wear-resistant block, while the wear-resistant block directly bears the remaining impact due to its own wear-resistant properties. The combination of the two greatly reduces the damage of the fluid impact to the gate plate and significantly extends the service life of the gate plate. The wear-resistant block is connected to the connecting seat by multiple bolts. When the wear-resistant block needs to be replaced, the bolts can be removed, which has a very high degree of flexibility and is very convenient to replace.
[0008] In a preferred embodiment, the inner diameter of the air deflector is conical and gradually decreases from the outside to the inside.
[0009] By adopting the above solution, when high-pressure fluid enters the valve body, the flow guide can make the fluid flow rate gradually and smoothly transition, reduce the impact of the fluid on the valve body inlet and gate, and improve the overall impact resistance performance.
[0010] In a preferred embodiment, the inner diameter of the inner side of the flow guide is the same as the outer diameter of the wear-resistant block, and a sealing buffer pad is fixedly connected to the end of the connecting seat opposite to the gate.
[0011] Using the above solution, the wear-resistant block can effectively absorb the liquid flowing out of the guide shroud and bear most of the impact force. The sealing buffer pad reduces the direct impact of particles on the edge of the gate, extends the service life, and enhances the sealing performance when in contact with related components.
[0012] In a preferred embodiment, multiple bolts are provided, and the multiple bolts are connected by threads, wear-resistant blocks, and connecting seats.
[0013] By adopting the above scheme, the installation of multiple bolts can make the connection between the wear-resistant block and the connecting seat more secure, and prevent loosening under the impact of high-pressure fluid; the threaded connection ensures the detachability of the connection, which facilitates the replacement of worn wear-resistant blocks in the future, and further improves the practicality and reliability of the wear-resistant components.
[0014] In a preferred embodiment, the sampling assembly includes a protective base, an observation window, a transfer tube, an externally threaded tube, a sample bottle, an internally threaded plug, and an externally threaded base. The observation window is fixedly connected to the front side of the top of the protective base, and the transfer tube is fixedly connected to the rear side of the top of the protective base. The top of the transfer tube is connected to the sample bottle through the externally threaded tube, and an externally threaded base is provided on one side of the transfer tube. The externally threaded base is connected to the internally threaded plug through threads.
[0015] Using the above solution, the observation window allows staff to intuitively observe the flow status of the fluid inside the valve body and whether there are any impurities or blockages. The operating status of the sampling system can be preliminarily judged without disassembling the parts, saving inspection time. The combination of the transfer tube, the external threaded tube and the sample bottle makes the sampling operation more convenient and efficient. The threaded connection ensures the tightness of the connection and facilitates the installation and removal of the sample bottle. Staff can quickly replace the sample bottle to perform multiple samplings.
[0016] In a preferred embodiment, the end of the transmission pipe opposite to the external threaded pipe extends into the valve body, and a one-way valve is provided inside the transmission pipe.
[0017] The above scheme clarifies the connection between the transmission pipe and the valve body, ensuring that fluid samples can be obtained directly from inside the valve body, which is the key to realizing the sampling function. The one-way valve is installed in the transmission pipe to prevent fluid backflow through the one-way flow characteristic, ensuring the accuracy of sampling, while avoiding backflow from interfering with the fluid state inside the valve body, which is an optimization of the function of the transmission pipe.
[0018] In a preferred embodiment, the internal thread plug can be threadedly connected to an external thread pipe or an external thread base.
[0019] With the above solution, when sampling is required, the internal thread plug is installed at the external thread base to provide a fixed placement position. When sampling is not required, the sample bottle can be removed and the internal thread plug 46 can be installed at the external thread tube to prevent dust, thereby enhancing the sealing performance and usage flexibility of the sampling component in the non-sampling state.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] By setting up a flow guide, the fluid flow rate gradually and smoothly transitions, reducing the impact of the fluid on the valve body inlet and the gate. The flow guide and the wear-resistant block work together to significantly reduce the damage to the gate caused by fluid impact and significantly extend the service life of the gate. The wear-resistant block is connected to the connecting seat by multiple bolts. When the wear-resistant block needs to be replaced, the bolts can be removed, which has a very high degree of flexibility and makes replacement very convenient.
[0022] By setting up sampling components, the flow status of the fluid in the valve body and whether there are impurities blocking it can be observed intuitively. The operation status of the sampling system can be preliminarily judged without disassembling the parts, saving inspection time. The combination of the transmission pipe, the external threaded pipe and the sample bottle makes the sampling operation more convenient and efficient. The threaded connection ensures the tightness of the connection and facilitates the installation and removal of the sample bottle. The staff can quickly change the sample bottle to perform multiple samplings. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant high-pressure gate valve proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the overall right-side structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the overall left-side structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the wear-resistant component structure of this utility model;
[0027] Figure 5 This is a schematic diagram of the sampling component structure of this utility model.
[0028] In the diagram: 1. Valve control assembly; 2. Valve body; 3. Flow guide; 4. Sampling assembly; 5. Wear-resistant assembly; 6. Gate; 41. Protective base; 42. Observation window; 43. Transfer pipe; 44. External threaded pipe; 45. Sample bottle; 46. Internal threaded plug; 47. External threaded base; 51. Connecting seat; 52. Wear-resistant block; 53. Bolt. Detailed Implementation
[0029] Example 1
[0030] Please see Figure 1-4 This utility model provides a wear-resistant high-pressure gate valve, including a valve control assembly 1, a valve body 2 and a gate 6. The valve control assembly 1 is fixedly connected to the outer surface of the valve body 2. The valve control assembly 1 and the gate 6 are movably connected by bearings. The valve body 2 is provided with a flow guide 3, a sampling assembly 4 and a wear-resistant assembly 5. The sampling assembly 4 is fixedly connected to one side of the outer surface of the valve body 2, and the flow guide 3 for guiding the flow is fixedly connected to the inlet of the valve body 2. The wear-resistant assembly 5 is fixedly connected to the side of the gate 6 near the flow guide 3.
[0031] The wear-resistant component 5 includes a connecting seat 51, a wear-resistant block 52, and a bolt 53. The side end of the connecting seat 51 is connected to the wear-resistant block 52 by the bolt 53.
[0032] The wear-resistant block 52 in the wear-resistant component 5 is fixed on the side of the gate plate 6 near the guide shroud 3, which is located in the main impact area after the fluid enters. The guiding effect of the guide shroud 3 reduces the impact angle and intensity of the fluid on the wear-resistant block 52, while the wear-resistant block 52 directly bears the remaining impact due to its own wear-resistant properties. The two work together to greatly reduce the damage of the fluid impact to the gate plate 6 and significantly extend the service life of the gate plate 6. The wear-resistant block 52 is connected to the connecting seat 51 by multiple bolts 53. When the wear-resistant block 52 needs to be replaced, the bolts 53 can be removed, which has a very high flexibility and is very convenient to replace.
[0033] The inner diameter of the fairing 3 is conical and gradually decreases from the outside to the inside;
[0034] When high-pressure fluid enters valve body 2, the flow guide shroud 3 can gradually and smoothly transition the fluid flow rate, reduce the impact of the fluid on the valve body 2 inlet and gate 6, and improve the overall impact resistance performance.
[0035] The inner diameter of the inner side of the flow guide 3 is the same as the outer diameter of the wear-resistant block 52, and the connecting seat 51 is fixedly connected to a sealing buffer pad at the opposite end of the gate 6.
[0036] The wear-resistant block 52 can effectively absorb the liquid flowing out from the guide shroud 3 and bear most of the impact force. The sealing buffer pad reduces the direct impact of particles on the edge of the gate 6, extends the service life, and enhances the sealing performance when in contact with related components.
[0037] Multiple bolts 53 are provided, and the multiple bolts 53 are connected by threads, wear-resistant blocks 52, and connecting seats 51;
[0038] The multiple bolts 53 make the connection between the wear-resistant block 52 and the connecting seat 51 more secure, preventing loosening under the impact of high-pressure fluid; the threaded connection ensures the detachability of the connection, making it easy to replace the worn wear-resistant block 52 later, further improving the practicality and reliability of the wear-resistant component 5.
[0039] During use, fluid enters through the inlet at valve body 2. The high-speed fluid is guided by the guide shroud 3 to the wear-resistant block 52, where it is subjected to direct impact. The wear-resistant block 52 itself has high wear resistance, which can effectively buffer the impact force and reduce damage to the gate plate 6. When it is necessary to replace the wear-resistant block 52, it is only necessary to remove the multiple bolts 53 to remove the wear-resistant block 52 from the connecting seat 51, and then replace it with a new wear-resistant block 52. This setting has the advantages of low replacement cost and convenient replacement. At the same time, the sealing buffer pad set at the connecting seat 51 can protect the edge of the gate plate 6 and extend its service life.
[0040] Example 2
[0041] Please see Figure 1-5 The sampling component 4 includes a protective base 41, an observation window 42, a transfer tube 43, an externally threaded tube 44, a sample bottle 45, an internally threaded plug 46, and an externally threaded base 47. The observation window 42 is fixedly connected to the front side of the top of the protective base 41, and the transfer tube 43 is fixedly connected to the rear side of the top of the protective base 41. The top of the transfer tube 43 is connected to the sample bottle 45 through the externally threaded tube 44. An externally threaded base 47 is provided on one side of the transfer tube 43. The externally threaded base 47 is connected to the internally threaded plug 46 through threads.
[0042] The observation window 42 allows staff to directly observe the flow status of the fluid inside the valve body 2 and whether there are any impurities or blockages. The operating status of the sampling system can be preliminarily judged without disassembling the parts, saving inspection time. The combination of the transmission pipe 43, the external threaded pipe 44 and the sample bottle 45 makes the sampling operation more convenient and efficient. The threaded connection ensures the tightness of the connection and facilitates the installation and removal of the sample bottle 45. Staff can quickly replace the sample bottle 45 to perform multiple samplings.
[0043] One end of the transmission pipe 43, opposite to the external threaded pipe 44, extends into the valve body 2, and a one-way valve is installed inside the transmission pipe 43.
[0044] Clearly defining the connection between the transmission pipe 43 and the valve body 2 is crucial for ensuring that fluid samples can be directly obtained from inside the valve body 2. The one-way valve installed inside the transmission pipe 43 prevents fluid backflow through its one-way flow characteristics, ensuring the accuracy of sampling. At the same time, it avoids backflow interfering with the fluid state inside the valve body 2, which is an optimization of the function of the transmission pipe 43.
[0045] The internal thread plug 46 can be threadedly connected to the external thread pipe 44 and the external thread base 47;
[0046] When sampling is required, the internal threaded plug 46 is installed at the external threaded base 47 to provide a fixed placement position. When sampling is not required, the sample bottle 45 can be removed and the internal threaded plug 46 can be installed at the external threaded tube 44 to prevent dust, thereby enhancing the sealing performance and usage flexibility of the sampling assembly 4 in the non-sampling state.
[0047] When sampling is required, the sample bottle 45 is connected to the external threaded tube 44 via threads. When fluid flows through the valve body 2, it passes through one end of the transfer tube 43 and enters the sample bottle 45 via the external threaded tube 44. The sample bottle 45 serves to store the sample. The one-way valve at the transfer tube 43 effectively prevents sample backflow and improves the sealing of the valve body 2. After sampling, the sample bottle 45 can be separated from the external threaded tube 44. If multiple samples are required, a new sample bottle 45 can be installed. After sampling, the internal threaded plug 46 installed at the external threaded base 47 is removed and installed at the external threaded tube 44 to shield the external threaded tube 44 and prevent external dust from entering. The fluid condition inside the valve body 2 can be observed through the observation window 42, saving inspection time. The observation window 42 is made of high-definition wear-resistant glass, which has strong wear resistance and light transmittance.
Claims
1. A wear-resistant high-pressure gate valve, comprising a valve control assembly (1), a valve body (2), and a gate (6), wherein the valve control assembly (1) is fixedly connected to the outer surface of the valve body (2), and the valve control assembly (1) and the gate (6) are movably connected by bearings, characterized in that: The valve body (2) is provided with a flow guide (3), a sampling component (4) and a wear-resistant component (5). The sampling component (4) is fixedly connected to one side of the outer surface of the valve body (2), and the flow guide (3) for guiding the flow is fixedly connected to the inlet of the valve body (2). The wear-resistant component (5) is fixedly connected to the gate (6) on the side close to the flow guide (3). The wear-resistant component (5) includes a connecting seat (51), a wear-resistant block (52) and a bolt (53), and the side end of the connecting seat (51) is connected to the wear-resistant block (52) by the bolt (53).
2. The wear-resistant high-pressure gate valve according to claim 1, characterized in that: The inner diameter of the flow guide (3) is conical and gradually decreases from the outside to the inside.
3. The wear-resistant high-pressure gate valve according to claim 1, characterized in that: The inner diameter of the inner side of the flow guide (3) is the same as the outer diameter of the wear-resistant block (52), and the connecting seat (51) is fixedly connected to the end opposite to the gate (6) with a sealing buffer pad.
4. The wear-resistant high-pressure gate valve according to claim 1, characterized in that: The bolts (53) are provided in multiple quantities, and the multiple bolts (53) are connected by threads and wear-resistant blocks (52) and connecting seats (51).
5. The wear-resistant high-pressure gate valve according to claim 1, characterized in that: The sampling assembly (4) includes a protective base (41), an observation window (42), a transfer tube (43), an externally threaded tube (44), a sample bottle (45), an internally threaded plug (46), and an externally threaded base (47). The observation window (42) is fixedly connected to the front side of the top of the protective base (41), and the transfer tube (43) is fixedly connected to the rear side of the top of the protective base (41). The top of the transfer tube (43) is connected to the sample bottle (45) through the externally threaded tube (44). An externally threaded base (47) is provided on one side of the transfer tube (43). The externally threaded base (47) is connected to the internally threaded plug (46) through threads.
6. A wear-resistant high-pressure gate valve according to claim 5, characterized in that: The transmission pipe (43) and the external threaded pipe (44) are opposite to each other and pass through the valve body (2), and a one-way valve is provided in the transmission pipe (43).
7. A wear-resistant high-pressure gate valve according to claim 5, characterized in that: The internal thread plug (46) can be threadedly connected to the external thread pipe (44) and the external thread base (47).