Hydraulic control three-way valve for adjusting opening and closing speed and pipeline
By designing a water injection pipeline that extends from the valve cover and installs a hydraulic three-way valve that adjusts the flow rate valve, the problem of unadjustable switching speed in the prior art is solved, and the piston movement speed is controllable and the switching speed is adjustable, which improves safety.
Patent Information
- Application Number
- CN202422429731.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The switching speed of existing hydraulic three-way valves is unadjustable, and the inlet flow is uncontrollable, resulting in complex structure and unsafe use.
A hydraulic three-way valve is designed to adjust the speed of the switch. The water injection pipeline extends from the valve cover of the valve body, and a water injection valve that adjusts the flow rate is installed. The piston movement speed is adjusted by controlling the flow rate of the water injection pipeline, and a water discharge pipeline is equipped to reduce shock and vibration.
The piston movement speed is adjustable and the switching speed is adjustable, reducing the "water hammer effect" and improving the safety of use.
Smart Images
Figure CN223191122U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a hydraulically controlled three-way valve and a pipeline for adjusting switching speed. Background Art
[0002] In fluid piping systems, valves are control elements whose primary functions are to isolate equipment and piping systems, regulate flow, prevent backflow, and adjust or relieve pressure. They can be used to control the flow of various fluids, including air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.
[0003] The high-pressure heater three-way valve is one of the important devices in the bypass system of the high-pressure heater of a large thermal power generator set. At present, when the hydraulically controlled high-pressure heater three-way valve is in the closed state, water needs to be added to the upper chamber of the piston of the piston control system, and water needs to be discharged from the lower chamber of the piston of the piston control system. The existing three-way valve water injection pipeline is arranged inside the valve cover. This structure is relatively complex, and the water inlet flow rate cannot be adjusted, and the piston movement speed cannot be controlled.
[0004] Therefore, the existing technology needs to be improved. Utility Model Content
[0005] The technical problem to be solved by the utility model is that the switching speed of the hydraulically controlled three-way valve in the prior art cannot be adjusted. The purpose is to provide a hydraulically controlled three-way valve and pipeline with adjustable switching speed. By adopting corresponding technical means, the valve has the beneficial effects of adjustable piston movement speed, adjustable switching speed, and safer use.
[0006] The utility model is achieved through the following technical solutions:
[0007] In the first aspect, the utility model provides a hydraulically controlled three-way valve for adjusting the speed of switching, which includes a valve body, an adjusting chamber is provided inside the valve body, a piston is provided in the adjusting chamber, the valve body is provided with a switch control rod passing through the adjusting chamber, the switch control rod is connected to the piston, the adjusting chamber is connected to a water injection pipeline, the water injection pipeline extends from the valve cover of the valve body, and the water injection pipeline is provided with a water injection valve for adjusting the flow rate.
[0008] Furthermore, in the present invention, the valve body is connected to a drain pipe, and the drain pipe extends from the valve cover of the valve body.
[0009] Furthermore, in the present invention, the drain pipe is provided with a manual isolation valve and a quick-opening valve.
[0010] Furthermore, in the present invention, the water injection pipeline includes a vertical pipe and a horizontal pipe connected to each other, and the vertical pipe is connected to the top of the regulating chamber.
[0011] Furthermore, in the present invention, the water injection valve is connected to the horizontal pipe, and the water injection valve is located outside the valve body.
[0012] Furthermore, in the present invention, the switch control rod sleeve is provided with a spring for pushing the reset.
[0013] Furthermore, in the present invention, the valve body is threadedly connected to a push rod, and the push rod abuts against the top end of the switch control rod.
[0014] Furthermore, in the present invention, a hand wheel is provided at the top end of the push rod.
[0015] Furthermore, in the present invention, a sealing ring is provided on the outer side of the piston.
[0016] In a second aspect, the present invention provides a pipeline comprising the above-mentioned hydraulically controlled three-way valve for adjusting the speed of switching, and also comprising a pipeline connected to the valve body.
[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0018] The utility model provides a hydraulically controlled three-way valve for adjusting the speed of switching, which is equipped with a valve body, a switch control rod and a water injection pipeline, and a water injection valve is installed on the water injection pipeline. Since the water injection pipeline and the regulating chamber are directly extended from the valve cover of the valve body after being connected, the water inlet of the water injection pipeline is located outside the valve cover, which makes processing simpler. In addition, a water injection valve for adjusting the flow rate can be installed on the water injection pipeline. The water injection valve controls the size of the flow rate in the water injection pipeline, and thus controls the speed of the piston movement. By reducing the movement speed of the switch control rod, the impact and vibration on the pipeline caused by the contact between the valve disc and the valve seat sealing surface can be greatly reduced when the switch control rod is closed, effectively avoiding the "water hammer effect" and improving the safety of use.
[0019] The utility model also provides a pipeline, including a pipeline and a hydraulically controlled three-way valve for adjusting the switching speed. The valve body is installed on the pipeline, which has the beneficial effects of adjustable piston movement speed, adjustable switching speed, and safer use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:
[0021] Figure 1 This is a schematic diagram of the internal structure of a hydraulically controlled three-way valve for adjusting the switching speed of the utility model;
[0022] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;
[0023] Figure 3 This is a schematic diagram of the internal structure of an existing hydraulically controlled high-pressure three-way valve.
[0024] The marks and corresponding parts names in the accompanying drawings are: 1-valve body, 101-regulating chamber, 2-switch control rod, 3-piston, 301-sealing ring, 4-water injection pipeline, 401-vertical pipe, 402-horizontal pipe, 5-water injection valve, 6-water discharge pipeline, 601-manual isolation valve, 602-quick opening valve, 7-spring, 8-push rod, 801-handwheel. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0027] Example 1
[0028] This embodiment 1 provides a hydraulically controlled three-way valve for adjusting the switching speed, such as Figure 1-Figure 2 The specific structure is described as follows.
[0029] The hydraulically controlled three-way valve for adjusting the switching speed of the utility model mainly comprises a valve body 1, a valve body 2 and a valve body 3. Figure 1 As shown, the valve body 1 is used to control the on / off state of the pipeline and control the flow of fluid.
[0030] Further, combined Figure 1 and Figure 2 As shown, a cylindrical regulating chamber 101 is installed inside the valve body 1 , a switch control rod 2 vertically passes through the regulating chamber 101 , and a piston 3 is sleeved on the switch control rod 2 .
[0031] like Figure 1 and Figure 2 As shown, the piston 3 is located inside the regulating chamber 101 , and the piston 3 and the inner wall of the regulating chamber 101 are in contact and sealed. The piston 3 separates the regulating chamber 101 into an upper chamber and a lower chamber.
[0032] In some implementations of this embodiment, the water injection pipeline 4 comprises a vertical pipe 401 and a horizontal pipe 402. The bottom end of the vertical pipe 401 is connected to the top of the regulating chamber 101, and the vertical pipe 401 is in communication with the upper chamber of the regulating chamber 101. The vertical pipe 401 extends upward, and then the top end of the vertical pipe 401 is connected to the left end of the horizontal pipe 402. The vertical pipe 401 then extends out from the right side of the valve cover of the valve body 1, and the water injection pipeline 4 is connected to the water supply pipe. A water injection valve 5 is installed on the horizontal pipe 402 of the water injection pipeline 4 to adjust the water flow. The water injection valve 5 controls the speed of water injection into the upper chamber of the regulating chamber 101, thereby controlling the speed of movement of the switch control lever 2.
[0033] It should be noted that, in order to achieve a better sealing effect for the piston 3 , two sealing rings 301 are fixed on the outer side of the piston 3 , and the sealing rings 301 can be made of rubber.
[0034] Combine Figure 1 As mentioned above, a drain pipe 6 is installed on the valve body 1. The bottom end of the drain pipe 6 is connected to the regulating chamber 101 and communicates with the lower cavity of the regulating chamber 101 to drain water. Similarly, the drain pipe 6 first extends vertically upward, then extends horizontally to the left and protrudes from the valve cover of the valve body 1.
[0035] Further, combined Figure 1 As shown, a manual isolation valve 601 and a quick-opening valve 602 are installed on the drain pipe 6 to control the opening and closing of the drain pipe 6.
[0036] In some implementations of this embodiment, Figure 1 As shown, a spring 7 for pushing the return is sleeved on the switch control rod 2. One end of the spring 7 is fixed to the switch control rod 2, and the other end of the spring 7 is connected to the valve body 1. The valve body 1 returns to its original position by the elastic force of the spring 7.
[0037] Further, such as Figure 1 As shown, the top of the valve body 1 is threadedly connected to a push rod 8, which can be vertically raised or lowered by rotation. The bottom end of the push rod 8 abuts against the top end of the switch control rod 2 to manually control the switch control rod 2 to move downward.
[0038] Things that need to be explained, combined Figure 1 As shown, a hand wheel 801 is installed at the top of the push rod 8 to facilitate the staff to rotate the push rod 8.
[0039] The working principle of the hydraulically controlled three-way valve for adjusting the switching speed of the utility model is as follows:
[0040] Combine Figure 3 As shown, it is a hydraulically controlled three-way valve in the prior art. The water injection pipeline 4 is entirely located inside the hydraulically controlled three-way valve, which is very inconvenient to install. In addition, adding welding joints will lead to structural instability, welds are prone to leakage, the water flow rate cannot be adjusted, and the movement speed of the piston 3 cannot be controlled. Figure 1 and Figure 2 As shown, the present invention provides a hydraulically controlled three-way valve for adjusting the speed of switching, which is equipped with a valve body 1, a switch control rod 2 and a water injection pipeline 4, on which a water injection valve 5 is installed. Since the water injection pipeline 4 and the regulating chamber 101 are connected and extend directly from the valve cover of the valve body 1, the water inlet of the water injection pipeline 4 is located outside the valve cover, which makes processing simpler. In addition, a water injection valve 5 for adjusting the flow rate can be installed on the water injection pipeline 4. The water injection valve 5 controls the size of the flow rate in the water injection pipeline 4 and thus controls the speed of movement of the piston 3. By reducing the movement speed of the switch control rod 2, the impact and vibration on the pipeline caused by the contact between the valve disc and the valve seat sealing surface can be greatly reduced when the switch control rod 2 is closed, effectively avoiding the "water hammer effect" and improving the safety of use.
[0041] Example 2
[0042] This embodiment 2 provides a pipeline, which adopts the hydraulically controlled three-way valve for adjusting the switching speed of embodiment 1, and also includes a pipeline, which is connected to the valve body 1, and has the beneficial effects of adjustable piston 3 movement speed, adjustable switching speed, and safer use.
[0043] In summary, the present invention provides a hydraulically controlled three-way valve for adjusting the speed of opening and closing. The valve body 1 includes a regulating chamber 101 disposed within the valve body 1. A piston 3 is disposed within the regulating chamber 101. The valve body 1 is provided with a switch lever 2 that passes through the regulating chamber 101 and is connected to the switch lever 2 and the piston 3. The regulating chamber 101 is connected to a water injection line 4 that extends from the valve cover of the valve body 1 and is equipped with a flow-regulating water injection valve 5. The valve body 1 is connected to a water discharge line 6 that extends from the valve cover of the valve body 1. The water discharge line 6 is equipped with a manual isolation valve 601 and a quick-opening valve 602. The water injection line 4 includes a vertical pipe 401 and a horizontal pipe 402 that are interconnected. The vertical pipe 401 is connected to the top of the regulating chamber 101. The water injection valve 5 is connected to the horizontal pipe 402 and is located outside the valve body 1. The switch lever 2 is provided with a spring 7 that pushes it back. The valve body 1 is threadedly connected to a push rod 8, which abuts the top end of the switch control rod 2. A handwheel 801 is provided at the top end of the push rod 8. A sealing ring 301 is sleeved around the outer side of the piston 3. The present invention also provides a pipeline comprising the aforementioned hydraulically controlled three-way valve for adjusting the speed of opening and closing, and also comprising a pipeline connected to the valve body 1. Therefore, the hydraulically controlled three-way valve and pipeline for adjusting the speed of opening and closing of the present invention have the beneficial effects of adjustable piston movement speed, adjustable switching speed, and increased safety.
[0044] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A hydraulically controlled three-way valve for adjusting the speed of switching, characterized in that: The invention comprises a valve body (1), wherein an adjusting chamber (101) is provided inside the valve body (1), a piston (3) is provided in the adjusting chamber (101), the valve body (1) is provided with a switch control rod (2) passing through the adjusting chamber (101), the switch control rod (2) is connected to the piston (3), the adjusting chamber (101) is connected to a water injection pipeline (4), the water injection pipeline (4) extends from the valve cover of the valve body (1), and the water injection pipeline (4) is provided with a water injection valve (5) for adjusting the flow rate.
2. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 1 is characterized in that: The valve body (1) is connected to a water discharge pipe (6), and the water discharge pipe (6) extends from the valve cover of the valve body (1).
3. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 2 is characterized in that: The water discharge pipeline (6) is provided with a manual isolation valve (601) and a quick-opening valve (602).
4. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 1, characterized in that: The water injection pipeline (4) comprises a vertical pipe (401) and a horizontal pipe (402) connected to each other, and the vertical pipe (401) is connected to the top of the regulating chamber (101).
5. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 4 is characterized in that: The water injection valve (5) is connected to the horizontal pipe (402), and the water injection valve (5) is located outside the valve body (1).
6. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 1, characterized in that: The switch control rod (2) is sleeved with a spring (7) for pushing and returning.
7. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 6, characterized in that: The valve body (1) is threadedly connected to a push rod (8), and the push rod (8) abuts against the top end of the switch control rod (2).
8. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 7, characterized in that: A hand wheel (801) is provided at the top end of the push rod (8).
9. The hydraulically controlled three-way valve for adjusting the switching speed according to claim 1, characterized in that: A sealing ring (301) is sleeved on the outer side of the piston (3).
10. A pipeline, characterized in that: The invention comprises a hydraulically controlled three-way valve for adjusting the switching speed as claimed in claim 1, and further comprises a pipeline connected to the valve body (1).