CN217784330U

CN217784330U - Throttling valve with back flushing function

Info

Publication number: CN217784330U
Application number: CN202221862715.4U
Authority: CN
Inventors: 张兆娟
Original assignee: Tianjin Yuehua Valve Technology Co ltd
Current assignee: Tianjin Yuehua Valve Technology Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-11
Anticipated expiration: 2032-07-15

Abstract

The utility model provides a choke valve with back flush belongs to the valve body field. Including the choke valve, the flushing valve group, the choke valve both ends are arranged in to the flushing valve group correspondence, and with the choke valve import and export intercommunication, the choke valve includes the valve casing, the case subassembly is arranged in the valve casing, and through case subassembly throttle valve body flow, the flushing valve group includes a washing water intaking valve, a washing drain valve, the flushing valve is including washing the shell, the seal receptacle, the inner tube cover, the flushing pipe, the shell mountain is arranged in to the guide receptacle spiro union, the combination forms shell structure, it is provided with the passageway that runs through both ends to wash the shell, it is provided with the stand pipe with passageway vertically to wash the shell, the stand pipe oral area is arranged in to the seal receptacle spiro union, can wash the choke valve through setting up the flushing valve at current choke valve both ends, and wide application scope.

Description

Throttle valve with back flushing function

Technical Field

The utility model provides a choke valve with back flush belongs to the valve body field.

Background

At present, a throttle valve is a valve for controlling fluid flow by changing a throttle section or a throttle length, the existing valve body structure is used for transferring fluid through on-off and flow regulation of internal fluid, the throttle valve is lack of a flushing structure, the valve body structure is complex, the disassembly and cleaning efficiency is low, the number of internal parts is large, the valve body precision is influenced after disassembly and cleaning, and quick flushing and cleaning cannot be performed.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a choke valve with back flush provides one kind and presses the throttle valve subassembly that washes through utilizing to install the washing valve body additional at current choke valve both ends. Simple structure and convenient use.

The utility model relates to a choke valve with backwash is realized like this, the utility model relates to a choke valve with backwash: the flushing valve set comprises a flushing valve and a flushing valve set, the flushing valve set is correspondingly arranged at two ends of the throttling valve and is communicated with an inlet and an outlet of the throttling valve, the throttling valve comprises a valve shell and a valve core assembly, the valve core assembly is arranged in the valve shell and throttles the flow of the valve body through the valve core assembly, the flushing valve set comprises a flushing water inlet valve and a flushing water discharge valve, the flushing valve comprises a flushing shell, a sealing seat, an inner pipe sleeve and a flushing pipe, the guiding seat is arranged on the flushing shell in a screwed mode and is combined to form a shell structure, the flushing shell is provided with a guiding pipe perpendicular to the channel, the sealing seat is arranged at the opening of the guiding pipe in a screwed mode, the bottom of the guiding pipe is correspondingly provided with a lower guiding seat, the lower guiding seat is a spherical bulge extending out of the flushing shell, the inner pipe sleeve is arranged in the flushing shell and corresponds to the guiding pipe and the lower guiding seat, the flushing pipe is connected with the top of the inner pipe sleeve and penetrates through the sealing seat, the inner pipe sleeve structure, a communicating groove is arranged on the side wall of the shell, a sealing ring is arranged between the outer wall of the inner sleeve and the guiding pipe, a sealing sleeve is arranged between the flushing sleeve and the sealing sleeve, a sealing gasket is arranged at the end of the flushing pipe, a reset spring of the flushing pipe, and a reset spring of the flushing sleeve, and a reset spring is arranged between the sealing sleeve, and the limiting ring;

the sealing guide sleeve is embedded in the sealing seat in a clamping manner, and a sealing gasket is arranged between the sealing guide sleeve and the sealing seat;

the sealing gaskets are arranged in the sealing guide sleeve at equal intervals;

a sealing layer is arranged in the lower guide seat, is of a spherical crown structure and is attached to the inner wall of the lower guide seat;

two ends of the flushing shell channel are correspondingly provided with conical threads connected with a pipeline;

the inner pipe sleeve is of a stainless steel structure, and the bottom of the inner pipe sleeve corresponds to the inner wall of the lower guide seat;

the inner sleeve is internally provided with a rotor, and the outer ring of the rotor is provided with a plurality of helical blades.

Has the beneficial effects that:

1. the throttle valve can be flushed by arranging the flushing valves at the two ends of the existing throttle valve, so that the application range is wide;

2. an inner pipe sleeve structure is adopted, and flushing is formed by telescopic introduction of the inner pipe sleeve;

3. simple structure and convenient use.

Drawings

Fig. 1 is a schematic structural view of the throttle valve with back flushing according to the present invention.

Fig. 2 is a schematic diagram of a flush valve with a back-flushing throttle valve according to the present invention.

In the drawings:

1. a valve housing; 2. a valve core assembly; 3. a sealing seat; 4. an inner pipe sleeve; 5. washing the shell; 6. a lower guide seat; 7. a sealing layer; 8. sealing gaskets; 9. a flushing pipe; 10. a pipe joint; 11. a return spring; 12. and sealing the guide sleeve.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

According to the scheme shown in FIGS. 1-2: the utility model relates to a choke valve with back flush realizes like this, the utility model relates to a choke valve with back flush: the automatic flushing valve comprises a throttling valve and a flushing valve group, wherein the flushing valve group is correspondingly arranged at two ends of the throttling valve and is communicated with an inlet and an outlet of the throttling valve, the throttling valve comprises a valve shell 1 and a valve core assembly 2, the valve core assembly 2 is arranged in the valve shell 1, the flow of a valve body is throttled by the valve core assembly 2, the flushing valve group comprises a flushing water inlet valve and a flushing water drain valve, when the automatic flushing valve is used, a pipe joint 10 on a flushing pipe 9 is connected with an external flushing loop, the flushing pipe 9 at the inlet end of the throttling valve is a flushing water drain pipe, the flushing pipe 9 at the outlet end of the throttling valve is a water inlet pipe, the flushing valve comprises a flushing shell 5, a sealing seat 3, an inner pipe sleeve 4 and a flushing pipe 9, a guide seat is screwed on the flushing shell 5 to form a shell structure in a combined mode, the flushing shell 5 is provided with a channel penetrating through two ends, the flushing shell 5 is provided with a guide pipe vertical to the channel, and the sealing seat 3 is screwed at the opening of the guide pipe, the bottom of the guide pipe is correspondingly provided with a lower guide seat 6, the lower guide seat 6 is a spherical bulge extending out of the flushing shell 5, the inner pipe sleeve 4 is arranged in the flushing shell 5 and corresponds to the guide pipe and the lower guide seat 6, the flushing pipe 9 is connected with the top of the inner pipe sleeve 4 and penetrates through the sealing seat 3, the inner pipe sleeve 4 is of a shell structure, the side wall of the inner pipe sleeve is provided with a communicating groove, the communicating groove corresponds to a channel on the flushing shell 5, a sealing ring is arranged between the outer wall of the inner pipe sleeve and the guide pipe, a sealing guide sleeve 12 is arranged between the flushing pipe 9 and the sealing seat 3, a sealing gasket 8 is arranged between the sealing guide sleeve 12 and the sealing seat 3, the end part of the flushing pipe 9 is provided with a pipe joint 10, the middle part of the flushing pipe 9 is provided with a limit ring, a reset spring 11 is arranged between the limit ring and the sealing guide sleeve 12, the reset spring 11 is correspondingly sleeved on the flushing pipe 9, and the flushing pipe 9 is pushed and pulled by the reset spring 11 in an initial state, the inner pipe sleeve 4 is arranged in a guide pipe of the flushing shell 5 and is positioned above the lower guide seat 6, a communication groove on the inner pipe sleeve 4 is attached to the side wall of the guide pipe to form sealing, two ends of the throttle valve are communicated through a channel between the inner pipe sleeve 4 and the lower fixed seat, the throttle valve core assembly 2 is used for throttling, if the flushing is needed, the flushing pipe 9 at the inlet end of the throttle valve is pressed into the flushing shell 5, so that the inner pipe sleeve 4 extends along the guide pipe and moves into the lower fixed seat to form plugging of the inlet end of the throttle valve, meanwhile, the communication groove on the inner pipe sleeve 4 is correspondingly communicated with the valve shell 1, then the flushing pipe 9 at the outlet end of the valve body is pressed into the flushing valve to form communication of the inner pipe sleeve 4, and the flushing in the throttle valve is formed through the flushing pipe 9; the sealing guide sleeve 12 is embedded in the sealing seat 3 in a clamping manner, and a sealing gasket 8 is arranged between the sealing guide sleeve and the sealing seat 3; the sealing gaskets 8 are arranged in the sealing guide sleeves 12 at equal intervals; a sealing layer 7 is arranged in the lower guide seat 6, and the sealing layer 7 is of a spherical crown structure and is attached to the inner wall of the lower guide seat 6; two ends of the channel of the flushing shell 5 are correspondingly provided with conical threads connected with a pipeline; the inner pipe sleeve 4 is of a stainless steel structure, and the bottom of the inner pipe sleeve corresponds to the inner wall of the lower guide seat 6; a rotor is arranged in the inner pipe sleeve 4, and a plurality of helical blades are arranged on the outer ring of the rotor; the purpose of back flushing and cleaning the throttle valve is achieved.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a choke valve with back flush, includes choke valve, flushing valve group, and the corresponding choke valve both ends of arranging in of flushing valve group, and with the intercommunication of choke valve exit, the choke valve includes valve casing (1), case subassembly (2), and valve casing (1) is arranged in case subassembly (2), and through case subassembly (2) regulating valve body flow, the flushing valve group includes one and washes water intaking valve, one and washes the drain valve, its characterized in that: the flushing valve comprises a flushing shell (5), a sealing seat (3), an inner pipe sleeve (4) and a flushing pipe (9), wherein a guide seat is in threaded connection with the flushing shell (5) to form a shell structure in a combined mode, a channel penetrating through two ends of the flushing shell (5) is arranged on the flushing shell (5), the flushing shell (5) is provided with a guide pipe perpendicular to the channel, the sealing seat (3) is in threaded connection with the opening of the guide pipe, a lower guide seat (6) is correspondingly arranged at the bottom of the guide pipe, the lower guide seat (6) is a spherical bulge extending out of the flushing shell (5), the inner pipe sleeve (4) is arranged in the flushing shell (5), and corresponding to the guide pipe and the lower guide seat (6), the flushing pipe (9) is connected with the top of the inner pipe sleeve (4), and penetrates through the sealing seat (3), the inner pipe sleeve (4) is a shell structure, and the side wall is provided with a communicating groove which corresponds to a channel on the flushing shell (5), a sealing ring is arranged between the outer wall of the inner sleeve shell and the guide pipe, a sealing guide sleeve (12) is arranged between the flushing pipe (9) and the sealing seat (3), a sealing gasket (8) is arranged between the sealing guide sleeve (12) and the sealing seat (3), the end part of the flushing pipe (9) is provided with a pipe joint (10), the middle part of the flushing pipe (9) is provided with a limit ring, a reset spring (11) is arranged between the limit ring and the sealing guide sleeve (12), and the reset spring (11) is correspondingly sleeved on the flushing pipe (9).

2. A throttle valve with back flushing as set forth in claim 1 wherein: the sealing guide sleeve (12) is embedded in the sealing seat (3) in a clamping manner, and a sealing gasket (8) is arranged between the sealing guide sleeve and the sealing seat (3).

3. A throttle valve with back flushing as set forth in claim 1 wherein: the sealing gaskets (8) are arranged in the sealing guide sleeves (12) at equal intervals.

4. A throttle valve with back flushing as set forth in claim 1 wherein: and a sealing layer (7) is arranged in the lower guide seat (6), the sealing layer (7) is of a spherical crown structure, and the sealing layer is attached to the inner wall of the lower guide seat (6).

5. A throttle valve with back flushing as set forth in claim 1 wherein: two ends of the channel of the flushing shell (5) are correspondingly provided with conical threads connected with a pipeline.

6. A throttle valve with back flushing as set forth in claim 1 wherein: the inner pipe sleeve (4) is of a stainless steel structure, and the bottom of the inner pipe sleeve corresponds to the inner wall of the lower guide seat (6).

7. A throttle valve with back flushing as set forth in claim 1 wherein: the inner pipe sleeve (4) is internally provided with a rotor, and the outer ring of the rotor is provided with a plurality of helical blades.