CN201047451Y

CN201047451Y - Leading type valve

Info

Publication number: CN201047451Y
Application number: CNU200720032241XU
Authority: CN
Inventors: 柴荣
Original assignee: GANSU WANFENG WATER INDUSTRY Co Ltd
Current assignee: GANSU WANFENG WATER INDUSTRY Co Ltd
Priority date: 2007-06-27
Filing date: 2007-06-27
Publication date: 2008-04-16
Anticipated expiration: 2017-06-27

Abstract

The utility model discloses a dredge-typed valve used for solving the problems that a valve core of the existing valve is greatly affected by medium pressure and is difficult to be opened and closed in the switching process. The utility model comprises a total valve body, a valve core and a valve seat. The total valve body consists of a valve body 1 and a valve body 2; the valve body 1 and the valve body 2 are connected with each other by a valve body connector; the internal wall of the valve body 1 is provided with a valve body sealing ring 1; the valve body 1, the valve seat, the valve core and the valve body 2 are axisymmetrically arranged in the same axis line; the valve seat is fixed in middle part of the valve body 1 by a guide plate; the external wall of the valve seat is provided with a sealing seat sealing ring; the external wall of the valve seat and the internal wall of the valve body 1 form a valve body flow passage; the valve core is arranged in the interior of the total valve body; the middle part of the valve core is provided with a valve core flow passage; the external wall of the valve core is provided with a valve core transmission part. The utility model controls a medium by the action principle of dredge type, and is hardly affected by the medium pressure; the valve body is internally provided with a streamline flow passage, with excellent flowing performance and convenient operation and regulation.

Description

Dredge the formula valve

Technical field

The utility model relates to a kind of direct current valve, a kind of specifically formula valve of dredging.

Background technique

In the valve applications field, the size of controlled pressure medium is the important parameter that at first will consider in valve design and the use, in the valve mechanism kind of using at present, as gate valve, stop valve, butterfly valve, ball valve etc., mainly take to control with the mode convection cell of " blocking up ", its shutter member (spool) is subjected to the influence of pressure medium very big in the switching process, causes the switch difficulty, not easy to operate, particularly evident in middle and high pressure valve class.Though have some pressure balance class stop valves can eliminate the influence of pressure medium, its trafficability performance is restricted again.

Model utility content the purpose of this utility model provides a kind of formula valve of dredging, and is subjected to the influence of pressure medium big in the switching process with the spool that solves existing valve, the problem of switch difficulty.

The utility model comprises total valve body, spool, valve seat, described total valve body is made up of valve body first and valve body second, the valve body first is connected by the valve body link with valve body second, valve body first inwall is equipped with the valve seals first, on same axis, be provided with valve body first, valve seat, spool and valve body second axisymmetricly, valve seat is fixed on valve body first middle part by guide plate, and the outer wall of valve seat is installed valve seat insert, and valve seat outer wall and valve body first inwall form valve flowing channel; Spool is installed in total valve body inside, and the spool middle part is the spool runner, and the spool outer wall is equipped with the spool driving component.

The utility model adopts and with the action principle of " dredging " mode medium is controlled according to the technical requirementss such as handling, circulation, modulability and sealing of valve, takes based on the action principle of " blocking up " completely different with conventional valves.Control with " dredging " mode convection cell, can be most of or all eliminate the influence of pressure medium to spool, make the handling of valve, adjusting function better.

During the utility model spool moving linearly, the influence of suffered pressure medium is very little, so the required external force of valve core movement is also just very little, such as, the valve core movement external force of hydraulic transmission valve also can be directly from the pressure of controlled medium itself.Have streamline channel in the valve body, have good trafficability performance, be convenient to control and regulate.The flow, pressure and the switch that are applied to flowing medium are controlled.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of drawings

Fig. 1 is the structural representation of first kind of mode of execution of the utility model;

Fig. 2 is the structural representation of second kind of mode of execution of the utility model;

Fig. 3 is the structural representation of the third mode of execution of the utility model;

Fig. 4 is the structural representation of the 4th kind of mode of execution of the utility model.

Embodiment

The utility model comprises total valve body, spool 2, valve seat 3, total valve body is made up of valve body first 1 and valve body second 13, valve body first 1 is connected by valve body link 8 with valve body second 13, valve body first 1 inwall is equipped with valve seals first 5, on same axis, be provided with valve body first 1, valve seat 3, spool 2 and valve body second 13 axisymmetricly, valve seat 3 is fixed on valve body first 1 middle part by guide plate 17, and the outer wall of valve seat 3 is installed valve seat insert 4, and valve seat 3 outer walls and valve body first 1 inwall form valve flowing channel 19; Spool 2 is installed in total valve body inside, and spool 2 middle parts are spool runner 18, and spool 2 outer walls are equipped with spool driving component 6.Spool 2 is straight tubular, and valve seat 3 is a streamline.

Valve seat 3 has two kinds along the cross section of vertical centering control axis, and a kind of is the circular section, and spool front port 11 on the spool 2 and spool rear port 12 and spool runner 18 all are circular flow section along the flow section of vertical centering control axis.

Valve seat 3 is an oval cross section along the another kind of the cross section of vertical centering control axis, spool front port 11 on the spool 2 is oval along the flow section of vertical centering control axis, spool rear port 12 is circular along the flow section of vertical centering control axis, and spool runner 18 is rounded to oval gradual transition section along the flow section of vertical centering control axis.

Fig. 1 shows first kind of mode of execution manual transmission of the utility model straight flow structure valve, spool driving component 6 is connected by motion thread 10 and handwheel 7, be equipped with on the valve body link 8 handwheel bearing second 9 is housed on handwheel bearing first 21, the valve body second 13, valve body second 13 inwalls are equipped with valve seals second 15, and spool 2 outer walls contact with valve seals second 15 with valve seals first 5, handwheel 7 both sides contact with handwheel bearing second 9 with handwheel bearing first 21 respectively.

Fig. 2 shows second kind of mode of execution manual transmission of the utility model straight flow structure valve, spool driving component 6 is connected by motion thread 10 and handwheel 7, be equipped with on the valve body link 8 handwheel bearing second 9 is housed on handwheel bearing first 21, the valve body second 13, described spool 2 outer walls contact with valve seals first 5, handwheel 7 both sides contact with handwheel bearing second 9 with handwheel bearing first 21 respectively; As follows with Fig. 1 difference: do not have valve seals second 15, valve body second 13 inside are provided with valve body the third 14, and valve body the third 14 middle parts are valve body third runner 20, and valve body the third 14 outer walls are provided with valve seals the third 16, and described spool 2 inwalls and valve seals the third 16 contacts.

Fig. 3 shows the third mode of execution hydraulic transmission straight flow structure valve of the utility model, valve body structure is with first kind of mode of execution, valve body second 13 inwalls are equipped with valve seals second 15, and spool 2 outer walls contact with valve seals first 5 and valve seals second 15; The outer wall of the inwall of valve body first 1 and valve body second 13 and spool 2 is combined to form hydraulic pressure cavity 23, and the hydraulic pressure cavity turnover armatine 24 at hydraulic pressure cavity 23 two ends and hydraulic pressure cavity are imported and exported second 25 and be positioned on the valve body; Spool driving component 6 and spool driving component seal ring 22 all are positioned at hydraulic pressure cavity 23 inside, and spool driving component seal ring 22 contacts with hydraulic pressure cavity 23 inwalls.

Fig. 4 shows the 4th kind of mode of execution hydraulic transmission straight flow structure of the utility model valve, valve body structure is with second kind of mode of execution, spool 2 outer walls contact with valve seals first 5, valve body second 13 inside are provided with valve body the third 14, valve body the third 14 middle parts are valve body third runner 20, valve body the third 14 outer walls are provided with valve seals the third 16, and described spool 2 inwalls and valve seals the third 16 contacts; The outer wall of the inwall of valve body first 1 and valve body second 13 and valve body the third 14 is combined to form hydraulic pressure cavity 23, and the hydraulic pressure cavity turnover armatine 24 at hydraulic pressure cavity 23 two ends and hydraulic pressure cavity are imported and exported second 25 and be positioned on the valve body; Spool driving component 6 and spool driving component seal ring 22 all are positioned at hydraulic pressure cavity 23 inside, and spool driving component seal ring 22 contacts with hydraulic pressure cavity 23 inwalls.

Shutter member of the present utility model is a tubular spool, and medium flows through from the spool middle part, and spool acts on by external force and makes axial linear movement in the valve body, and when the spool front port contacted with the valve seat insert of fixing, medium is imported into closed the chamber, valve closing.When the spool front port with after fixing valve seat insert separates, medium enters conducting chamber, valve opening.Distance between regulation and control spool front port and valve seat insert then can be regulated rate-of flow.

Claims

1. dredge the formula valve for one kind, comprise total valve body, spool, valve seat, it is characterized in that: described total valve body is made up of valve body first (1) and valve body second (13), valve body first (1) is connected by valve body link (8) with valve body second (13), valve body first (1) inwall is equipped with valve seals first (5), on same axis, be provided with valve body first (1) axisymmetricly, valve seat (3), spool (2) and valve body second (13), valve seat (3) is fixed on valve body first (1) middle part by guide plate (17), the outer wall of valve seat (3) is installed valve seat insert (4), and valve seat (3) outer wall and valve body first (1) inwall form valve flowing channel (19); Spool (2) is installed in total valve body inside, and spool (2) middle part is spool runner (18), and spool (2) outer wall is equipped with spool driving component (6).

2. the formula valve of dredging according to claim 1, it is characterized in that: described spool (2) is straight tubular, valve seat (3) is a streamline, described valve seat (3) is the circular section along the cross section of vertical centering control axis, and spool front port (11) on the spool (2) and spool rear port (12) and spool runner (18) all are circular flow section along the flow section of vertical centering control axis.

3. the formula valve of dredging according to claim 1, it is characterized in that: described spool (2) is straight tubular, valve seat (3) is a streamline, described valve seat (3) is an oval cross section along the cross section of vertical centering control axis, spool front port (11) on the spool (2) is oval along the flow section of vertical centering control axis, spool rear port (12) is circular along the flow section of vertical centering control axis, and spool runner (18) is rounded to oval gradual transition section along the flow section of vertical centering control axis.

4. according to claim 2 or the 3 described formula valves of dredging, it is characterized in that: described spool driving component (6) is connected by motion thread (10) and handwheel (7), be equipped with on the described valve body link (8) on handwheel bearing first (21), the valve body second (13) handwheel bearing second (9) is housed, valve body second (13) inwall is equipped with valve seals second (15), and spool (2) outer wall contacts with valve seals second (15) with valve seals first (5), handwheel (7) both sides contact with handwheel bearing second (9) with handwheel bearing first (21) respectively.

5. according to claim 2 or the 3 described formula valves of dredging, it is characterized in that: described spool driving component (6) is connected by motion thread (10) and handwheel (7), be equipped with on the described valve body link (8) on handwheel bearing first (21), the valve body second (13) handwheel bearing second (9) is housed, described spool (2) outer wall contacts with valve seals first (5), handwheel (7) both sides contact with handwheel bearing second (9) with handwheel bearing first (21) respectively; Described valve body second (13) inside is provided with valve body third (14), and valve body third (14) middle part is valve body third runner (20), and valve body third (14) outer wall is provided with valve seals third (16), and described spool (2) inwall contacts with valve seals third (16).

6. according to claim 2 or the 3 described formula valves of dredging, it is characterized in that: described valve body second (13) inwall is equipped with valve seals second (15), and spool (2) outer wall contacts with valve seals first (5) and valve seals second (15); The outer wall of the inwall of described valve body first (1) and valve body second (13) and spool (2) is combined to form hydraulic pressure cavity (23), and the hydraulic pressure cavity turnover armatine (24) at hydraulic pressure cavity (23) two ends and hydraulic pressure cavity are imported and exported second (25) and be positioned on the valve body; Spool driving component (6) and spool driving component seal ring (22) all are positioned at hydraulic pressure cavity (23) inside, and spool driving component seal ring (22) contacts with hydraulic pressure cavity (23) inwall.

7. according to claim 2 or the 3 described formula valves of dredging, it is characterized in that: described spool (2) outer wall contacts with valve seals first (5), described valve body second (13) inside is provided with valve body third (14), valve body third (14) middle part is valve body third runner (20), valve body third (14) outer wall is provided with valve seals third (16), and described spool (2) inwall contacts with valve seals third (16); The outer wall of the inwall of described valve body first (1) and valve body second (13) and valve body third (14) is combined to form hydraulic pressure cavity (23), and the hydraulic pressure cavity turnover armatine (24) at hydraulic pressure cavity (23) two ends and hydraulic pressure cavity are imported and exported second (25) and be positioned on the valve body; Spool driving component (6) and spool driving component seal ring (22) all are positioned at hydraulic pressure cavity (23) inside, and spool driving component seal ring (22) contacts with hydraulic pressure cavity (23) inwall.