A turbine pipe throttling device

Abstract

The application discloses a steam turbine pipeline throttling device and relates to the technical field of throttling devices.The steam turbine pipeline throttling device comprises an adjusting unit, a connecting unit and the like.The adjusting unit comprises a connecting shell, an adjusting assembly arranged in the connecting shell, a limiting assembly arranged on one side of the adjusting assembly and a sealing ring arranged on one side of the limiting assembly.The connecting unit comprises an electromagnetic valve pipeline arranged on one side of the connecting shell and an oil motor pipeline arranged on one side of the connecting shell.The steam turbine pipeline throttling device has the beneficial effects that the throttling orifice plate in the electromagnetic valve is cancelled, a new throttling device is installed in the pipeline, the throttling device can automatically adjust according to the medium pressure in the pipeline, meanwhile, the throttling orifice diameter can be changed, different impurities can smoothly pass through the throttling device and the throttling device cannot be blocked.

Description

Technical Field

[0001] This invention relates to the field of throttling device technology, and in particular to a steam turbine pipeline throttling device. Background Technology

[0002] A turbine solenoid valve orifice plate is a device used to control the throttling of a turbine solenoid valve. It is typically installed inside the solenoid valve, and the flow rate and pressure of the medium are controlled by adjusting the size of the throttling orifice on the orifice plate. This allows for precise control of the turbine solenoid valve, ensuring stable system operation. The orifice plate is usually made of high-temperature and corrosion-resistant materials to meet the requirements of the turbine's operating environment.

[0003] Existing orifice plates are generally movable and embedded, and are usually fixed structures that cannot be adjusted according to different pressures. Excessive pressure inside the pipeline can easily lead to safety hazards. The fixed structure of the orifice plate will also wear down the external O-ring after reciprocating under the impact of oil pressure, resulting in blockage of the orifice and an increase in pipeline pressure. Summary of the Invention

[0004] In view of the problems existing in the above or prior art, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a turbine pipeline throttling device that can solve the problems that the throttling orifice plate cannot be adjusted according to different pressures and that the fixed size of the throttling orifice is easily blocked.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a steam turbine pipeline throttling device, which includes an adjusting unit, including a connecting shell, an adjusting component disposed inside the connecting shell, a limiting component disposed on one side of the adjusting component, and a sealing ring disposed on one side of the limiting component;

[0007] The connection unit includes a solenoid valve pipe disposed on one side of the connection housing and a hydraulic actuator pipe disposed on one side of the connection housing.

[0008] As a preferred embodiment of the turbine pipeline throttling device of the present invention, the adjusting component includes a movable ring disposed inside the connecting housing, an adjusting member disposed on one side of the movable ring, a movable block disposed on one side of the adjusting member, and a first connecting rod disposed on one side of the movable block.

[0009] As a preferred embodiment of the turbine pipeline throttling device of the present invention, the movable ring includes a compression clamp disposed on one side of its ring body and a first fixed seat disposed on one side of the compression clamp; the number of the compression clamp and the first fixed seat are multiple sets, which are distributed at equal distances and angles along the ring body.

[0010] As a preferred embodiment of the turbine pipeline throttling device of the present invention, the adjusting component includes a first fixing column disposed on one side of the first fixing seat, a second fixing seat disposed on the wall of the adjusting component, and a third fixing seat disposed on one side of the end face of the adjusting component; the number of adjusting components is four sets, and the four sets of adjusting components close together after movement to form a conical throttling orifice.

[0011] In a preferred embodiment of the turbine pipeline throttling device of the present invention, the movable block includes a fourth fixed seat arranged at equal intervals and angles around its end face; the first connecting rod includes a second fixed column symmetrically arranged on its body; the second fixed column is movably connected to the second fixed seat and the fourth fixed seat respectively.

[0012] As a preferred embodiment of the turbine pipeline throttling device of the present invention, the limiting component includes a second connecting rod disposed on one side of the adjusting member, a tension spring disposed on one side of the second connecting rod, and a limiting compression block disposed on one side of the tension spring.

[0013] As a preferred embodiment of the turbine pipeline throttling device of the present invention, the second connecting rod includes a third fixed column symmetrically arranged on its body; the limiting compression block includes a fourth fixed column arranged on one side thereon, and a wedge-shaped inclined surface arranged on one side of the fourth fixed column.

[0014] As a preferred embodiment of the turbine pipeline throttling device of the present invention, the connecting shell includes a fifth fixing seat disposed on its inner wall, an annular groove disposed on one side of the limiting extrusion block, and a limiting hole disposed on one side of the annular groove.

[0015] In a preferred embodiment of the turbine pipeline throttling device of the present invention, the sealing ring is made of elastic material, embedded in the annular groove, and bonded to the limiting extrusion block; the tension spring is fixedly connected to the second connecting rod and the limiting extrusion block respectively.

[0016] In a preferred embodiment of the turbine pipeline throttling device of the present invention, the inner walls of the solenoid valve pipeline and the oil actuator pipeline are provided with threaded protrusions, the outer wall of the connecting housing is provided with threaded grooves, and the connecting housing is threadedly connected to the solenoid valve pipeline and the oil actuator pipeline.

[0017] The beneficial effects of this invention are as follows: This invention eliminates the throttling orifice plate inside the solenoid valve and installs a new throttling device in the pipeline. The impact of the medium in the pipeline on the moving ring and moving block drives the opening and closing of the regulating component, realizing the change of the throttling orifice diameter. This allows the throttling device to automatically adjust according to the pressure and flow rate of the medium in the pipeline. The adjustable throttling orifice diameter allows impurities to pass smoothly when the orifice diameter changes, instead of adhering to the throttling device and causing potential hazards. At the same time, the sealing ring can expand and contract according to the position change of the limiting extrusion block, better fitting the pipeline and improving the pipeline's sealing performance. The second connecting rod and the telescopic spring can realize the automatic reset of the regulating component when the pressure is low. The second connecting rod is fixed to the connecting shell and can also limit the regulating component, preventing the regulating component from detaching from the interior of the connecting shell and improving the stability of the structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall axial view of the turbine pipeline throttling device.

[0020] Figure 2 This is a schematic diagram of the specific structure of the regulating unit of the steam turbine pipeline throttling device.

[0021] Figure 3 Exploded view of the regulating and limiting components of the steam turbine pipeline throttling device.

[0022] Figure 4 Comparison diagram of orifice diameter changes in turbine pipeline throttling devices.

[0023] Figure 5 This is a cross-sectional view and a partially enlarged view of the regulating unit of the steam turbine pipeline throttling device. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0027] Example 1

[0028] Reference Figures 1-2 This is the first embodiment of the present invention. This embodiment provides a steam turbine pipeline throttling device, which includes an adjustment unit 100, including a connecting housing 101, an adjustment component 102 disposed inside the connecting housing 101, a limiting component 103 disposed on one side of the adjustment component 102, and a sealing ring 104 disposed on one side of the limiting component 103.

[0029] The connection unit 200 includes a solenoid valve pipe 201 disposed on one side of the connection housing 101, and a hydraulic actuator pipe 202 disposed on one side of the connection housing 101.

[0030] It should be noted that, referring to Figures 1-2 The throttling device is installed in the pipeline connecting the solenoid valve and the hydraulic actuator via a threaded connection. The outer wall of the connecting housing 101 has threaded grooves, and both the solenoid valve pipeline 201 and the hydraulic actuator pipeline 202 have threaded protrusions at their interfaces. The connecting housing 101 connects the solenoid valve pipeline 201 and the hydraulic actuator pipeline 202 together via the threaded connection, fixing the overall position of the throttling device inside the pipeline. The adjusting component 102 is located inside the connecting housing 101 and can automatically adjust the orifice size based on the medium pressure. The limiting component 103 is also located inside the connecting housing 101 and is movably connected to both the connecting housing 101 and the adjusting component 102, limiting the adjustment component 102. The sealing ring 104 is made of elastic material and can change shape and size under compression. The sealing ring 104 is used on the outer wall of the connecting housing 101 to seal the connection when the solenoid valve pipeline 201 and the hydraulic actuator pipeline 202 are threadedly connected to the connecting housing 101, preventing medium leakage.

[0031] In use, when the pressure of the medium inside the pipeline is high, the medium impacts the regulating component 102, causing it to displace within the connecting housing 101 under pressure. This displacement changes the size of the throttling orifice, thus reducing the pressure inside the pipeline. As the pressure decreases, the regulating component 102 experiences less pressure from the medium and, under the action of the limiting component 103, gradually returns to its original position. The limiting component 103 simultaneously restricts its movement, preventing it from being ejected from the connecting housing 101.

[0032] In summary, by adjusting the cooperation between component 102 and limiting component 103, the diameter of the throttling orifice can be changed. By changing the size of the throttling orifice, the problem of excessive pressure in the pipeline can be effectively regulated.

[0033] Example 2

[0034] Reference Figures 1-5 This is the second embodiment of the present invention, which differs from the first embodiment in that it further includes: In the previous embodiment, the turbine pipeline throttling device includes an adjusting assembly 102 comprising a movable ring 102a disposed inside the connecting housing 101, an adjusting member 102b disposed on one side of the movable ring 102a, a movable block 102c disposed on one side of the adjusting member 102b, and a first connecting rod 102d disposed on one side of the movable block 102c.

[0035] Furthermore, the movable ring 102a includes a compression clamp 102a-1 disposed on one side of its ring body and a first fixing seat 102a-2 disposed on one side of the compression clamp 102a-1; the number of compression clamps 102a-1 and the number of first fixing seats 102a-2 are multiple sets, which are distributed at equal distances and angles along the ring body.

[0036] Furthermore, the adjusting member 102b includes a first fixing post 102b-1 disposed on one side of the first fixing seat 102a-2, a second fixing seat 102b-2 disposed on the wall of the adjusting member 102b, and a third fixing seat 102b-3 disposed on one side of the end face of the adjusting member 102b; there are four sets of adjusting members 102b, and the four sets of adjusting members 102b close together after movement to form a conical throttling orifice.

[0037] Furthermore, the adjusting member 102b includes a first fixing post 102b-1 disposed on one side of the first fixing seat 102a-2, a second fixing seat 102b-2 disposed on the wall of the adjusting member 102b, and a third fixing seat 102b-3 disposed on one side of the end face of the adjusting member 102b; there are four sets of adjusting members 102b, and the four sets of adjusting members 102b close together after movement to form a conical throttling orifice.

[0038] Furthermore, the movable block 102c includes a fourth fixed seat 102c-1 that is equally spaced and angledly arranged around its end face; the first connecting rod 102d includes a second fixed post 102d-1 symmetrically arranged on its body; the second fixed post 102d-1 is movably connected to the second fixed seat 102b-2 and the fourth fixed seat 102c-1 respectively.

[0039] It should be noted that the reference is... Figures 2-5The movable ring 102a is circular, and four sets of compression clips 102a-1 are symmetrically arranged on one side end face. The compression clips 102a-1 have a groove in the middle and a wedge-shaped inclined surface on the side near the limiting compression block 103c to facilitate cooperation with the limiting compression block 103c. At the same time, a first fixing seat 102a-2 for connecting the adjusting member 102b is also provided on the end face of the movable ring 102a. The end face of the first fixing seat 102a-2 is provided with a circular through hole. The adjusting component 102b is a fan-shaped arc-shaped component, and there are four sets of adjusting components 102b. A first fixing post 102b-1 is provided on one end face. The first fixing post 102b-1 is inserted into the circular through hole of the first fixing seat 102a-2, so that the adjusting component 102b can be movably connected to the movable ring 102a. The adjusting component 102b can rotate around the first fixing seat 102a-2. A second fixing seat 102b-2 with a circular through hole on the end face is also provided on the inner wall of the arc surface of the adjusting component 102b, which is convenient for connecting the first connecting rod 102d. A third fixing seat 102b-3 with the same hole on the end face is also provided on the other side of the adjusting component 102b, which is used to connect the second connecting rod 103a. The movable block 102c includes four sets of fourth fixed seats 102c-1 symmetrically arranged on its end face, and four sets of first connecting rods 102d. Two sets of second fixed posts 102d-1 are symmetrically arranged on the rod body. The second fixed posts 102d-1 are respectively inserted into the second fixed seats 102b-2 and the fourth fixed seats 102c-1. The first connecting rods 102d connect the adjusting member 102b and the movable block 102c, allowing the adjusting member 102b to change its state as the movable block 102c moves. When the medium in the pipeline impacts the end faces of the movable ring 102a and the movable block 102c, the movable ring 102a and the movable block 102c move towards the limiting component 103. The movement of the movable block 102c drives the adjusting member 102b to close via the first connecting rods 102d. After the four sets of adjusting members 102b move, they close to form a conical throttling orifice, which can regulate the pressure inside the pipeline.

[0040] Furthermore, the limiting component 103 includes a second connecting rod 103a disposed on one side of the adjusting member 102b, a tension spring 103b disposed on one side of the second connecting rod 103a, and a limiting compression block 103c disposed on one side of the tension spring 103b.

[0041] Furthermore, the second link 103a includes a third fixed post 103a-1 symmetrically arranged on its body; the limiting compression block 103c includes a fourth fixed post 103c-1 arranged on one side of it, and a wedge-shaped inclined surface 103c-2 arranged on one side of the fourth fixed post 103c-1.

[0042] Furthermore, the connecting housing 101 includes a fifth fixing seat 101a disposed on its inner wall, an annular groove 101b disposed on one side of the limiting compression block 103c, and a limiting hole 101c disposed on one side of the annular groove 101b.

[0043] Furthermore, the sealing ring 104 is made of elastic material and is embedded in the annular groove 101b, and is bonded to the limiting extrusion block 103c; the tension spring 103b is fixedly connected to the second connecting rod 103a and the limiting extrusion block 103c respectively.

[0044] It should be noted that the reference Figures 2-5 The inner wall of the connecting housing 101 is symmetrically provided with four sets of fifth fixing seats 101a, and an annular groove 101b is also provided on its outer wall. Four sets of limiting holes 101c that penetrate the wall of the connecting housing 101 are symmetrically opened on the annular groove 101b. There are four sets of second connecting rods 103a, and two sets of third fixing posts 103a-1 are symmetrically provided on their rods. The third fixing posts 103a-1 are respectively engaged with the third fixing seat 102b-3 on the adjusting member 102b and the fifth fixing seat 101a on the inner wall of the connecting housing 101, connecting the adjusting member 102b and the connecting housing 101 together. There are four sets of limiting compression blocks 103c, corresponding to four sets of adjusting components 102b and four sets of second connecting rods 103a respectively. A fourth fixing post 103c-1 is provided on one side of the limiting compression block 103c. The tension spring 103b connects the second connecting rod 103a and the limiting compression block 103c through the third fixing post 103a-1 and the fourth fixing post 103c-1 respectively. A wedge-shaped inclined surface 103c-2 that cooperates with the compression clamp 102a-1 is provided on the side of the limiting compression block 103c near the movable ring 102a. Under the action of the movable ring 102a and the tension spring 103b, the limiting compression block 103c can extend and retract through the limiting hole 101c. A sealing ring 104 is also provided on one side of the annular groove 101b. The sealing ring 104 is made of elastic material and is embedded in the annular groove 101b. It is bonded to the limiting extrusion block 103c and can be expanded or contracted with the extension and retraction of the limiting hole 101c. At the same time, it limits the limiting extrusion block 103c so that it will not fall out of the limiting hole 101c.

[0045] During use, the medium inside the pipeline impacts the end faces of the movable ring 102a and the movable block 102c. The movable ring 102a and the movable block 102c move towards the limiting component 103. The movable block 102c drives the first connecting rod 102d, which pulls the four sets of adjusting parts 102b toward the center. At the same time, the adjusting parts 102b are squeezed by the second connecting rod 103a during movement, so that the four sets of adjusting parts 102b can better move toward the center. As the movable ring 102a moves toward the limiting component 103, the squeezing clip 102a-1 gradually contacts the limiting squeezing block 103c. The groove in the middle of the squeezing clip 102a-1 facilitates the insertion of the fourth fixed post 103c-1, ensuring that it does not obstruct the continued movement of the movable ring 102a. The squeezing clip 102a-1 continues to squeeze the limiting squeezing block 103c, completely extruding the limiting squeezing block 103c outward, so that the sealing ring 104 can be fully opened to seal the pipe connection. When the four sets of adjusting components 102b are fully closed, a conical throttling orifice is formed, which can adjust the pressure and flow rate of the medium in the pipe. When the pressure of the medium in the pipeline decreases, the impact on the movable ring 102a and movable block 102c decreases. When the force exerted by the medium on the movable ring 102a and movable block 102c is less than the tension of the spring, the tension spring 103b gradually recovers from the stretched state, causing the movable ring 102a and movable block 102c to gradually reset. At this time, the four sets of adjusting parts 102b gradually open and return to their original state.

[0046] In summary, by cooperating with the adjusting component 102 and the limiting component 103, the automatic adjustment effect can be achieved according to the pressure of the medium in the pipeline.

[0047] Example 3

[0048] Reference Figures 1-5 This is the third embodiment of the present invention, which differs from the previous two embodiments in that: the inner walls of the solenoid valve pipe 201 and the oil motor pipe 202 are provided with threaded protrusions, the outer wall of the connecting housing 101 is provided with threaded grooves, and the connecting housing 101 is threadedly connected to the solenoid valve pipe 201 and the oil motor pipe 202.

[0049] It should be noted that, under normal circumstances, the orifice plate is usually installed inside the solenoid valve, and the orifice plate is generally a fixed structure. The orifice plate will also wear down the external O-ring after reciprocating under the impact of oil pressure, leading to blockage of the orifice. However, this invention connects the outer casing 101 to the solenoid valve pipe 201 and the hydraulic actuator pipe 202 via threads, allowing the throttling device to operate directly inside the pipe. Simultaneously, the opening and closing of the four sets of adjusting components 102b allows different impurities in the pipe to pass smoothly, preventing impurities from clogging the orifice and causing safety hazards. By installing the throttling device in different locations, the pressure in the pipe can be greatly reduced, minimizing safety risks.

[0050] In use, by connecting the outer casing 101 to the pipeline via a threaded connection, throttling devices are installed at different positions. The adjusting component 102 and the limiting component 103 adjust the size of the throttling orifice under the impact of the medium pressure, thereby adjusting the pressure inside the pipeline.

[0051] In summary, by installing a throttling device at any location, the device can automatically adjust according to the pressure of the medium in the pipeline. At the same time, the throttling orifice diameter can be changed to allow different impurities to pass through the throttling device smoothly without causing blockage.

[0052] Importantly, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A steam turbine pipeline throttling device, characterized in that: include, The adjustment unit (100) includes a connecting housing (101), an adjustment component (102) disposed inside the connecting housing (101), a limiting component (103) disposed on one side of the adjustment component (102), and a sealing ring (104) disposed on one side of the limiting component (103). The connection unit (200) includes a solenoid valve pipe (201) disposed on one side of the connection housing (101) and a hydraulic actuator pipe (202) disposed on one side of the connection housing (101). The adjustment assembly (102) includes a movable ring (102a) disposed inside the connecting housing (101), an adjustment member (102b) disposed on one side of the movable ring (102a), a movable block (102c) disposed on one side of the adjustment member (102b), and a first connecting rod (102d) disposed on one side of the movable block (102c). When the medium inside the pipeline impacts the end faces of the movable ring (102a) and the movable block (102c), the movable ring (102a) and the movable block (102c) move toward the limiting component (103). The movable block (102c) drives the adjusting component (102b) to close through the first connecting rod (102d), forming a conical throttling orifice. At the same time, the limiting component (103) drives the sealing ring (104) to fully open, sealing the pipeline connection.

2. The turbine pipeline throttling device as described in claim 1, characterized in that: The movable ring (102a) includes a compression clamp (102a-1) disposed on one side of its ring body and a first fixing seat (102a-2) disposed on one side of the compression clamp (102a-1); the number of compression clamps (102a-1) and the number of first fixing seats (102a-2) are multiple sets, which are distributed at equal distances and angles along the ring body.

3. The turbine pipeline throttling device as described in claim 2, characterized in that: The adjusting component (102b) includes a first fixing post (102b-1) disposed on one side of the first fixing seat (102a-2), a second fixing seat (102b-2) disposed on the wall of the adjusting component (102b), and a third fixing seat (102b-3) disposed on one side of the end face of the adjusting component (102b); there are four sets of adjusting components (102b), and the four sets of adjusting components (102b) close together after movement to form a conical throttling orifice.

4. The turbine pipeline throttling device as described in claim 3, characterized in that: The movable block (102c) includes a fourth fixed seat (102c-1) that is equally spaced and angled around its end face; the first connecting rod (102d) includes a second fixed post (102d-1) symmetrically arranged on its body; the second fixed post (102d-1) is movably connected to the second fixed seat (102b-2) and the fourth fixed seat (102c-1) respectively.

5. The turbine pipeline throttling device as described in claim 4, characterized in that: The limiting component (103) includes a second link (103a) disposed on one side of the adjusting member (102b), a tension spring (103b) disposed on one side of the second link (103a), and a limiting compression block (103c) disposed on one side of the tension spring (103b).

6. The turbine pipeline throttling device as described in claim 5, characterized in that: The second connecting rod (103a) includes a third fixed post (103a-1) symmetrically arranged on its body; the limiting compression block (103c) includes a fourth fixed post (103c-1) arranged on one side of it, and a wedge-shaped inclined surface (103c-2) arranged on one side of the fourth fixed post (103c-1).

7. The turbine pipeline throttling device as described in claim 6, characterized in that: The connecting housing (101) includes a fifth fixing seat (101a) disposed on its inner wall, an annular groove (101b) disposed on one side of the limiting compression block (103c), and a limiting hole (101c) disposed on one side of the annular groove (101b).

8. The turbine pipeline throttling device as described in claim 7, characterized in that: The sealing ring (104) is made of elastic material and is embedded in the annular groove (101b) and bonded to the limiting extrusion block (103c); the tension spring (103b) is fixedly connected to the second connecting rod (103a) and the limiting extrusion block (103c) respectively.

9. The turbine pipeline throttling device as described in claim 8, characterized in that: The inner walls of the solenoid valve pipe (201) and the oil motor pipe (202) are provided with threaded protrusions, and the outer wall of the connecting shell (101) is provided with threaded grooves. The connecting shell (101) is threadedly connected to the solenoid valve pipe (201) and the oil motor pipe (202).

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