CN209839312U

CN209839312U - Multi-cage type regulating valve

Info

Publication number: CN209839312U
Application number: CN201920612374.7U
Authority: CN
Inventors: 蔡绪岳; 陈文艺
Original assignee: Zhejiang Baolu Valve Technology Co Ltd
Current assignee: Zhejiang Baolu Valve Technology Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2019-12-24
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a multi-cage governing valve, which comprises a valve body, the top of valve body is passed through hexagon nut fixedly connected with and is gone up the valve gap, the top fixedly connected with executor upper bracket of going up the valve gap, the pneumatic actuating mechanism of top fixedly connected with of executor upper bracket, the inside of executor upper bracket is run through there is the valve rod, the valve rod extends to the inside one end fixedly connected with case of valve body, the inside both sides that just are located the case of valve body evenly are provided with the valve cage, the utility model relates to a cage governing valve technical field. This many cages formula governing valve has reached the purpose that prevents cavitation erosion production and noise reduction and pipeline shock's emergence.

Description

Multi-cage type regulating valve

Technical Field

The utility model relates to a cage governing valve technical field specifically is a multi-cage governing valve.

Background

The cage type regulating valve is a pressure balance type regulating valve, the valve inner part adopts a sleeve-guided pilot-operated valve core, the quick action of the valve core is realized by mainly utilizing the pressure of fluid, and the operating force is small. In addition, the sealing type adopts single seat sealing, the accuracy of the flow characteristic curve is high, and the IEC534-1 standard is met. The regulating valve has good dynamic stability, low noise and cavitation resistance, and is suitable for controlling high-pressure-difference fluids with various temperatures. The multi-spring film actuating mechanism or the electric actuating mechanism is matched, so that the structure is compact and the output force is large.

The existing cage type regulating valve is a single cage, so that cavitation and cavitation erosion are high in leveling rate, and noise and vibration are large.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a multi-cage governing valve has solved present cage governing valve and has been single valve cage to cavitation and cavitation flat rate height appear, noise and the big problem of vibrations simultaneously.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a multi-cage governing valve, includes the valve body, the top of valve body is passed through hexagon nut fixedly connected with and is gone up the valve gap, the top fixedly connected with executor upper bracket of going up the valve gap, the pneumatic actuating mechanism of top fixedly connected with of executor upper bracket, the inside of executor upper bracket is run through there is the valve rod, the valve rod extends to the inside one end fixedly connected with case of valve body, the inside both sides that just are located the case of valve body evenly are provided with the valve cage.

Preferably, the valve rod is positioned inside the upper support of the actuator and is fixedly connected with a pointer disk at a position close to the top.

Preferably, a stroke scale is fixedly connected to the left side inside the upper support of the actuator.

Preferably, the middle position of the bottom end of the upper support of the actuator and the two sides of the valve rod are provided with packing layers.

(III) advantageous effects

The utility model provides a multi-cage type regulating valve. The method has the following beneficial effects:

this multi-cage governing valve, through the top of valve body on the valve gap of hexagon nut fixedly connected with, the top fixedly connected with executor upper bracket of upper valve gap, the top fixedly connected with pneumatic actuator of executor upper bracket, the inside of executor upper bracket runs through there is the valve rod, the valve rod extends to the inside one end fixedly connected with case of valve body, the inside both sides that just are located the case of valve body evenly are provided with the valve cage, multi-cage governing valve mainly calculates rated CV value according to the service condition of governing valve, it reduces the valve body velocity of flow through increasing valve cage quantity to confirm the aperture runner sectional area, the mesh that the emergence that prevents cavitation erosion production and noise reduction and pipeline shock has been reached.

Drawings

Fig. 1 is a sectional view of the whole of the present invention.

In the figure: the device comprises a valve body 1, an upper valve cover 2, an actuator upper support 3, a pneumatic actuator 4, a hexagon nut 5, a valve rod 6, a pointer disk 7, a stroke scale 8, a valve core 9, a valve cage 10 and a packing layer 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a multi-cage governing valve, includes valve body 1, 5 fixedly connected with upper bonnet 2 are passed through at the top of valve body 1, the top fixedly connected with executor upper bracket 3 of upper bonnet 2, the pneumatic actuator 4 of top fixedly connected with of executor upper bracket 3, the inside of executor upper bracket 3 is run through there is valve rod 6, valve rod 6 extends to the inside one end fixedly connected with case 9 of valve body 1, the inside both sides that just are located case 9 of valve body 1 evenly are provided with valve cage 10. The valve rod 6 is positioned inside the actuator upper bracket 3 and is fixedly connected with a pointer disk 7 at a position close to the top. The left side of the inside of executor upper bracket 3 is fixedly connected with stroke scale 8. And packing layers 11 are arranged at the middle position of the bottom end of the actuator upper support 3 and on two sides of the valve rod 6.

During the use, through valve body 1's top through 5 fixedly connected with upper valve gap 2 of hexagon nut, the top fixedly connected with executor upper bracket 3 of upper valve gap 2, the top fixedly connected with pneumatic actuator 4 of executor upper bracket 3, the inside of executor upper bracket 3 runs through there is valve rod 6, valve rod 6 extends to the one end fixedly connected with case 9 of valve body 1 inside, the inside both sides that just are located case 9 of valve body 1 evenly are provided with valve cage 10, many cages governing valve mainly calculate rated CV value according to the service condition of governing valve, confirm that the aperture runner sectional area reduces the valve body velocity of flow through increasing valve cage quantity, reached the purpose that prevents the emergence of cavitation erosion production and noise reduction and pipeline shock.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a many cages governing valve, includes valve body (1), its characterized in that: the pneumatic valve is characterized in that the top of the valve body (1) is fixedly connected with an upper valve cover (2) through a hexagon nut (5), the top of the upper valve cover (2) is fixedly connected with an actuator upper support (3), the top of the actuator upper support (3) is fixedly connected with a pneumatic actuating mechanism (4), a valve rod (6) penetrates through the inside of the actuator upper support (3), the valve rod (6) extends to one end of the inside of the valve body (1) and is fixedly connected with a valve core (9), and valve cages (10) are uniformly arranged on the two sides of the inside of the valve body (1) and located on the valve core (9).

2. A multi-cage regulator valve according to claim 1 wherein: the valve rod (6) is positioned in the actuator upper bracket (3) and is fixedly connected with a pointer disc (7) at a position close to the top.

3. A multi-cage regulator valve according to claim 2 wherein: the left side of the inner part of the actuator upper bracket (3) is fixedly connected with a travel scale (8).

4. A multi-cage regulator valve according to claim 1 wherein: and packing layers (11) are arranged in the middle of the bottom end of the actuator upper support (3) and on two sides of the valve rod (6).