Composite flow characteristic regulating valve

Abstract

The utility model discloses a composite flow characteristic regulating valve which comprises a valve shell, a water inlet is formed in one end of the valve shell, a water outlet is formed in the other end of the valve shell, a communicating opening is formed in the valve shell, the water inlet and the water outlet are communicated with the communicating opening, and an upper connecting cylinder, a sleeve and a lower connecting cylinder are clamped in the communicating opening. A plurality of lower-layer water through holes, a plurality of middle-layer water through holes and an upper-layer water through hole are formed in the circumference of the sleeve, a valve seat is fixedly connected to the top end of the valve shell, a valve rod is slidably inserted into the top of the valve seat, a connector is clamped to the bottom end of the valve rod, a valve element is clamped to the bottom end of the connector, and the valve element is located in the upper connecting cylinder, the sleeve and the lower connecting cylinder. Good pressure reduction and speed reduction effects can be achieved through the labyrinth chip at the bottom of the sleeve, noise can be effectively reduced through the punching design in the middle, the overall flow of the sleeve can be improved through the window in the top, and therefore damage of cavitation to a valve can be effectively relieved, and harm caused by noise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of governing valve especially relates to a compound flow characteristic governing valve. BACKGROUND

[0002] At present, in many industrial fields, the accurate control of fluid flow by governing valve is extremely important, and the existing governing valve is inconvenient to carry out pressure reduction and speed reduction according to the flow of different fluids in the valve body in the use process, leading to poor use effect of the governing valve, therefore, in order to promote the industry technology, better realize the pressure and flow speed adjustment function of the governing valve for fluid flow, and improve the core technology competitiveness, the application proposes a new implementation scheme different from the governing valve adjustment structure and application mode in the prior art. SUMMARY

[0003] The utility model discloses a kind of compound flow characteristic governing valves to solve the problem that the existing governing valve is inconvenient to carry out pressure reduction and speed reduction according to the flow of different fluids in the valve body in the use process, leading to poor use effect of the governing valve.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of compound flow characteristic governing valve, including valve housing, the one end of valve housing is equipped with inlet, the other end of valve housing is equipped with outlet, and the inside of valve housing is equipped with communicating port, inlet and outlet are communicated with communicating port, the upper connecting cylinder of communicating port is connected with sleeve and lower connecting cylinder, the circumference of sleeve is equipped with multiple lower water holes, multiple middle water holes and upper water hole, the top of valve housing is fixedly connected with valve seat, the top of valve seat is slidably inserted with valve rod, the bottom of valve rod is connected with connector, the bottom of connector is connected with valve core, and valve core is located in upper connecting cylinder, sleeve and lower connecting cylinder.

[0006] Further, the bottom of valve seat is connected with sealing ring.

[0007] Further, the top of valve seat is fixedly connected with connecting seat.

[0008] Further, the top of valve seat is connected with inner sealing cylinder, outer sealing cylinder and linear bearing.

[0009] Further, the linear bearing is located between inner sealing cylinder and outer sealing cylinder.

[0010] Further, the sleeve is located between upper connecting cylinder and lower connecting cylinder.

[0011] The utility model has the advantages of:

[0012] 1. The labyrinth core at the bottom of the sleeve can achieve better pressure reduction and speed reduction effect, the perforated design in the middle can effectively reduce noise, and the top window can improve the overall flow of the sleeve, thereby effectively alleviating the damage of cavitation to the valve and reducing the harm caused by noise.

[0013] 2. The throttling head with flow characteristics is added to the bottom of the valve core, which can be superimposed with the flow characteristics of the sleeve, thereby adjusting the flow curve with different characteristics within a certain range of opening degree, and the throttling head can also realize small flow adjustment after being added, thereby meeting the required flow characteristics of specific working conditions and the characteristics of small flow adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A cross-sectional front view structural schematic diagram of a composite flow characteristic regulating valve is provided for the utility model.

[0015] Figure 2 A partial cross-sectional view structural schematic diagram of a composite flow characteristic regulating valve is provided for the utility model.

[0016] Figure 3 A cross-sectional view structural schematic diagram of the upper and lower layer water passage holes of a sleeve of a composite flow characteristic regulating valve is provided for the utility model.

[0017] Figure 4 A cross-sectional view structural schematic diagram of the upper and middle layer water passage holes of a sleeve of a composite flow characteristic regulating valve is provided for the utility model.

[0018] Figure 5 A cross-sectional view structural schematic diagram of the upper and upper layer water passage holes of a sleeve of a composite flow characteristic regulating valve is provided for the utility model.

[0019] In the figure: 1, valve shell; 2, water inlet; 3, water outlet; 4, communication port; 5, upper connecting cylinder; 6, sleeve; 601, lower layer water passage hole; 602, middle layer water passage hole; 603, upper layer water passage hole; 7, lower connecting cylinder; 8, valve seat; 9, valve stem; 10, connecting head; 11, valve core; 12, sealing ring; 13, connecting seat; 14, inner sealing cylinder; 15, outer sealing cylinder; 16, linear bearing. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] REFERENCE Figures 1-5The utility model provides a kind of composite flow characteristic regulating valve, including valve housing 1, water inlet 2 is equipped in one end of valve housing 1, water outlet 3 is equipped in the other end of valve housing 1, and communicating port 4 is equipped in valve housing 1, water inlet 2 and water outlet 3 are communicated with communicating port 4, upper connecting cylinder 5, sleeve 6 and lower connecting cylinder 7 are clamped in communicating port 4, the circumference of sleeve 6 is equipped with multiple lower water through holes 601, multiple middle water through holes 602 and upper water through hole 603, lower water through hole 601 is the structure of labyrinth chip, middle water through hole 602 is the structure of punching form, and upper water through hole 603 is the structure of window, valve housing 1 is fixed with valve seat 8 at top end by bolt, valve stem 9 is slidably inserted in the top of valve seat 8, connecting head 10 is clamped in the bottom end of valve stem 9, and connecting head 10 is throttling head, valve core 11 is clamped in the bottom end of connecting head 10, valve core 11 is located in upper connecting cylinder 5, sleeve 6 and lower connecting cylinder 7, and valve stem 9 is driven to move down connecting head 10 and valve core 11 upwards, to open lower water through hole 601, middle water through hole 602 and upper water through hole 603 according to demand, so as to adjust flow.

[0022] Sealing ring 12 is clamped in the bottom of valve seat 8, so as to seal between valve seat 8 and valve housing 1, connecting seat 13 is fixed in the top of valve seat 8 by bolt, inner sealing cylinder 14, outer sealing cylinder 15 and linear bearing 16 are clamped in the top of valve seat 8, linear bearing 16 is located between inner sealing cylinder 14 and outer sealing cylinder 15, and sleeve 6 is located between upper connecting cylinder 5 and lower connecting cylinder 7.

[0023] The working principle of the embodiment is as follows: when in use, valve stem 9 is driven to move down connecting head 10 and valve core 11 upwards, to open lower water through hole 601, middle water through hole 602 and upper water through hole 603 according to demand, then, fluid enters valve housing 1 from water inlet 2, and then flows into communicating port 4 through lower water through hole 601 or middle water through hole 602 or upper water through hole 603, and then is discharged from water outlet 3.

[0024] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art is equivalent to replace or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and should be covered in the protection scope of the utility model.

Claims

1. A composite flow characteristic regulating valve comprising a valve housing (1), characterized in that, One end of the valve shell (1) is provided with a water inlet (2), the other end of the valve shell (1) is provided with a water outlet (3), the valve shell (1) is provided with a communication port (4), the water inlet (2) and the water outlet (3) are communicated with the communication port (4), the communication port (4) is provided with an upper connecting cylinder (5), a sleeve (6) and a lower connecting cylinder (7), the circumference of the sleeve (6) is provided with a plurality of lower water holes (601), a plurality of middle water holes (602) and an upper water hole (603), the top end of the valve shell (1) is fixedly connected with a valve seat (8), the top of the valve seat (8) is slidably connected with a valve rod (9), the bottom end of the valve rod (9) is connected with a connecting head (10), the bottom end of the connecting head (10) is connected with a valve core (11), and the valve core (11) is located in the upper connecting cylinder (5), the sleeve (6) and the lower connecting cylinder (7).

2. The composite flow characteristic regulator valve of claim 1, wherein, The bottom of the valve seat (8) is connected with a sealing ring (12).

3. The composite flow characteristic control valve according to claim 1, wherein The top end of the valve seat (8) is fixedly connected with a connecting seat (13).

4. The composite flow characteristic regulator valve of claim 1, wherein, The top end of the valve seat (8) is connected with an inner sealing cylinder (14), an outer sealing cylinder (15) and a linear bearing (16).

5. The composite flow characteristic regulator valve of claim 4 wherein, The linear bearing (16) is located between the inner sealing cylinder (14) and the outer sealing cylinder (15).

6. The composite flow characteristic regulator valve of claim 1, wherein, The sleeve (6) is located between the upper connecting cylinder (5) and the lower connecting cylinder (7).

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