Throttle valve with labyrinth runner structure

Abstract

The utility model relates to the technical field of throttle valves, and discloses a throttle valve with a labyrinth runner structure, which comprises a valve body, a valve core is arranged at the upper end of the inside of the valve body, a labyrinth valve plate component is arranged outside the valve core and inside the valve body, and the labyrinth valve plate component comprises an S-shaped labyrinth disc valve plate; the valve cover is arranged outside the valve element at the upper end of the valve body, a pressing sleeve is arranged at the upper end of the valve cover, a pressing cover flange is arranged at the upper end of the pressing sleeve, and the pressing cover flange is connected with the valve body through a bolt; the fluid inlet is formed in one side of the valve body; the fluid outlet is formed in the lower end of the valve body. The number of layers and the size of channels for opening the labyrinth valve plate assembly are controlled through the lifting valve element, so that the flow of the valve body is adjusted, the flow speed is controlled through a labyrinth path, washing is reduced, and the service life of the valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to throttle valve technical field, concretely is a throttle valve with labyrinth flow channel structure. BACKGROUND

[0002] In the fluid control field, as the core control element, the performance of the valve is crucial to the safety and efficiency of the system. The traditional needle valve, with its needle-shaped valve core design, performs excellently in precise control of fluid flow. However, with the increasing complexity of industrial application environments, such as high pressure difference, high flow rate, and medium containing particles, the limitations of needle valves gradually emerge.

[0003] Although the traditional needle valve can achieve precise flow regulation in fluid control, it is prone to flow channel locking under complex conditions such as high pressure difference, high flow rate, or medium containing particles. This is because impurities in the fluid tend to deposit and block between the valve core and the valve seat, leading to valve loss of control and safety accidents. Therefore, a throttle valve with a labyrinth flow channel structure is proposed. SUMMARY

[0004] (I) Technical problems solved

[0005] To address the shortcomings of the prior art, the utility model provides a throttle valve with a labyrinth flow channel structure to solve the problems raised in the background.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a throttle valve with a labyrinth flow channel structure, comprising:

[0008] a valve body, the inside upper end of the valve body is provided with a valve core, the outside of the valve core inside the valve body is provided with a labyrinth valve plate assembly, the labyrinth valve plate assembly comprises an S-shaped labyrinth disc valve plate;

[0009] a valve cover is arranged outside the valve core at the upper end of the valve body, the upper end of the valve cover is provided with a pressure sleeve, the upper end of the pressure sleeve is provided with a gland flange, and the gland flange is connected with the valve body through bolts;

[0010] a fluid inlet is arranged on one side of the valve body;

[0011] a fluid outlet is arranged at the lower end of the valve body.

[0012] Preferably, the S-shaped labyrinth disc valve plate is stacked to form a labyrinth valve plate assembly.

[0013] Preferably, the inside of the fluid inlet is provided with an inner ring, and the inner ring is movably connected with the fluid inlet.

[0014] Preferably, the inner ring is internally provided with a filter screen, and the filter screen is fixedly connected with the inner ring.

[0015] Preferably, the outer portion of the inner ring is provided with a ring groove, and the ring groove is integrally formed with the inner ring.

[0016] Preferably, the inner portion of the ring groove is embedded with a rubber sealing ring.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a throttle valve with labyrinth flow channel structure has the following beneficial effects:

[0019] The utility model discloses a valve core's lift is come control to open the number of layers and the size of passage of labyrinth valve plate subassembly, thereby adjusting the size of valve body flow, through the labyrinth path in the labyrinth valve plate subassembly, control flow velocity makes the flow velocity reduction at valve core, reduces scour, prolongs the life of valve. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the valve body structure sectional view of the utility model;

[0021] Figure 2 It is the valve body external structure schematic view of the utility model;

[0022] Figure 3 It is the S type labyrinth disc valve plate structure perspective drawing of the utility model;

[0023] Figure 4 It is the single cross labyrinth disc valve plate structure perspective drawing of the utility model;

[0024] Figure 5 It is the double cross labyrinth disc valve plate structure perspective drawing of the utility model;

[0025] Figure 6 It is the inner ring and rubber sealing ring structure perspective drawing of the utility model.

[0026] In the drawing: 1, valve body;2, valve core;3, S type labyrinth disc valve plate;4, single cross labyrinth disc valve plate;5, double cross labyrinth disc valve plate;6, valve cover;7, press sleeve;8, gland flange;9, fluid inlet;10, fluid outlet;11, inner ring;12, ring groove;13, rubber sealing ring;14, filter screen. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0028] Embodiment one

[0029] The present utility model provides a technical scheme, a throttle valve with a labyrinth flow channel structure, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 , comprising:

[0030] Valve body 1, the inside upper end of valve body 1 is provided with valve core 2, the outside of valve core 2 is located in the inside of valve body 1 and is provided with a labyrinth valve plate assembly, and the labyrinth valve plate assembly comprises S-shaped labyrinth disc valve plate 3.

[0031] Valve cover 6 is arranged on the outside of valve core 2 at the upper end of valve body 1, the upper end of valve cover 6 is provided with pressing sleeve 7, the upper end of pressing sleeve 7 is provided with pressing cover flange 8, and pressing cover flange 8 is connected with valve body 1 through bolts.

[0032] Fluid inlet 9 is arranged on one side of valve body 1.

[0033] Fluid outlet 10 is arranged at the lower end of valve body 1.

[0034] Please refer to Figure 1 And Figure 3 , S-shaped labyrinth disc valve plate 3 is stacked to form a labyrinth valve plate assembly, and the flow rate is controlled through the labyrinth path of S-shaped labyrinth disc valve plate 3.

[0035] Please refer to Figure 1 And Figure 6 , the inside of fluid inlet 9 is provided with inner ring 11, and inner ring 11 is movably connected with fluid inlet 9.

[0036] Please refer to Figure 1 And Figure 6 , the inside of inner ring 11 is provided with filter screen 14, and filter screen 14 is fixedly connected with inner ring 11, and filter screen 14 is used for intercepting impurities of fluid inlet 9.

[0037] Please refer to Figure 1 And Figure 6 , the outside of inner ring 11 is provided with ring groove 12, and ring groove 12 is integrally formed with inner ring 11.

[0038] Please refer to Figure 1 AndFigure 6 The inner part of the annular groove 12 is embedded with a rubber sealing ring 13, which improves the sealing between the inner ring 11 and the fluid inlet 9.

[0039] The present scheme: by controlling the lifting of the valve core 2 to control the number of layers and the size of the channel of the labyrinth valve plate assembly, thereby adjusting the size of the flow of the valve body 1, by the labyrinth path of the S-shaped labyrinth disc valve plate 3 to control the flow rate, which can keep the flow rate at the valve core 2 below 30 m / sec, thereby reducing the scouring and prolonging the service life of the valve.

[0040] Example two

[0041] The difference between this embodiment and example one is: please refer to Figure 1 and Figure 4 The single-cross labyrinth disc valve plate 4 is stacked to form a labyrinth valve plate assembly, and the flow rate is controlled by the labyrinth path of the single-cross labyrinth disc valve plate 4.

[0042] Example three

[0043] The difference between this embodiment and example one and example two is: please refer to Figure 1 and Figure 5 The double-cross labyrinth disc valve plate 5 is stacked to form a labyrinth valve plate assembly, and the flow rate is controlled by the labyrinth path of the double-cross labyrinth disc valve plate 5.

[0044] It should be noted that the relational terms such as first and second and the like in this text are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or equipment including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or equipment.

[0045] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A throttling valve with a labyrinth flow channel structure, characterized in that, include: Valve body (1), valve core (2) is provided at the upper end of the valve body (1), and a labyrinth valve plate assembly is provided outside the valve core (2) inside the valve body (1), the labyrinth valve plate assembly includes an S-shaped labyrinth disc valve plate (3). A valve cover (6) is located outside the valve core (2) at the upper end of the valve body (1). A pressure sleeve (7) is provided at the upper end of the valve cover (6). A pressure cover flange (8) is provided at the upper end of the pressure sleeve (7). The pressure cover flange (8) is connected to the valve body (1) by bolts. A fluid inlet (9) is located on one side of the valve body (1); The fluid outlet (10) is located at the lower end of the valve body (1).

2. A throttling valve with a labyrinth flow channel structure according to claim 1, characterized in that: The S-shaped labyrinth valve plates (3) are stacked to form a labyrinth valve plate assembly.

3. A throttling valve with a labyrinth flow channel structure according to claim 1, characterized in that: The fluid inlet (9) is provided with an inner ring (11), and the inner ring (11) is movably connected to the fluid inlet (9).

4. A throttling valve with a labyrinth flow channel structure according to claim 3, characterized in that: The inner ring (11) is provided with a filter screen (14), and the filter screen (14) is fixedly connected to the inner ring (11).

5. A throttling valve with a labyrinth flow channel structure according to claim 3, characterized in that: The inner ring (11) has an outer groove (12) and the groove (12) is integrally formed with the inner ring (11).

6. A throttling valve with a labyrinth flow channel structure according to claim 5, characterized in that: A rubber sealing ring (13) is embedded inside the annular groove (12).

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