CN207715767U - A kind of regulating valve including novel level Four tube-in-tube structure - Google Patents

Abstract

The application belongs to universal machine valve technology field, discloses a kind of regulating valve including novel level Four tube-in-tube structure, solves the problems, such as in regulating valve in the prior art that level Four tube-in-tube structure processing capacity is bigger, process-cycle length.The application regulating valve includes valve body, flange is equipped with valve deck in the valve body, valve seat is housed among the valve body, superposition is equipped with level Four sleeve on the valve seat, it is superimposed and is assembled on level Four sleeve after loading balanced seal ring on compensating cylinder, valve plug is housed in the fourth stage sleeve, valve rod is housed on the valve plug, the first order sleeve, second level sleeve and third level sleeve are respectively arranged with stop pin.The utility model discards barrier arm, small after improving, can save 50% raw material；Structure is simpler, and the improved sleeve process-cycle shortens 2/3.The first order, second level set, third level sleeve increase stop pin, can fiting effect is poor to avoid sealing, valve leakage and the problems such as noise is big in use.

Description

A kind of regulating valve including novel level Four tube-in-tube structure

Technical field

The utility model belongs to universal machine valve technology field, and in particular to a kind of includes novel level Four tube-in-tube structure Regulating valve.

Background technology

As rapid industrial development proposes the valve used in technique and makes an uproar in special High Pressure Difference technological process The requirements such as sound is low, adjusting is stable, reduces cavitation, reduces vibration, is easy-maintaining, service life is grown.Common valve mechanism can not Meet technological requirement set forth above.CN203743551U discloses a kind of multilevel decompression valve, it includes mainly a valve body, Valve seat is installed in valve body, is configured with valve deck above valve body, the spool on valve seat is connected with across valve deck and can be upper and lower The mobile valve rod for realizing valve opening is the balanced type that two-way pressure balanced action has been formed with above with the spool that valve rod is connected Spool, the sleeve which is placed on valve seat is interior and can be moved up and down with valve rod；The sleeve is by least two layers of sleeve combination Made of cellular type labyrinth throttle multilayer sleeve, be provided with aperture or kidney-shaped aperture on each layer of sleeve, and the aperture or kidney-shaped are small Hole forms the throttling section of different shallow bids when passing through medium, has reasonable for structure, easy to use and reliable, low noise, adjusts steady It is fixed, the features such as cavitation can be reduced, vibration is reduced, is easy-maintaining, service life is long.

But for the requirement of replacing valve cycle, shorter (ordinary circumstance is to valve manufacture when chemical enterprise repair apparatus Only there are one the times in week for factory), existing level Four tube-in-tube structure form, as depicted in figs. 1 and 2, including first order sleeve 4, the Two-level sleeve 5, third level sleeve 6 and fourth stage sleeve 7, fourth stage sleeve 7 are mounted on barrier arm 18, processing capacity is bigger, Cooperation precision between sleeve and sleeve wants high, needs Special tooling clamp to be processed it, leads to every multistage pressuring machine valve Process-cycle increases, needs complete within 9 days, lost most of multilevel decompression valve order.And quickly lead in medium in the prior art Sleeve autobiography is easily caused when crossing sleeve, the poor, valve so as to cause the sealing fiting effect between sleeve and compensating cylinder and valve seat Internal leakage and the problems such as noise is big in use.

Utility model content

For deficiencies of the prior art, the purpose of this utility model is to provide one kind can shortening manufacture week Phase reduces the regulating valve for including novel level Four tube-in-tube structure of manufacturing cost.

In order to achieve the above object, a kind of regulating valve including novel level Four tube-in-tube structure provided by the utility model, uses Following technical solution：

A kind of regulating valve including novel level Four tube-in-tube structure, including valve body, flange is equipped with valve deck in the valve body, described Valve deck is equipped with a valve rod for leading to body cavity, and valve seat is housed among the valve body, is superimposed on the valve seat and is equipped with first Grade sleeve, second level sleeve, third level sleeve and fourth stage sleeve are packed into superposition after balanced seal ring on compensating cylinder and are assembled to the On level-one sleeve, second level sleeve, third level sleeve and fourth stage sleeve, valve plug, the valve are housed in the fourth stage sleeve Plug is connect with valve rod, and the valve plug can move up and down with valve rod, the first order sleeve, second level sleeve and third level sleeve point Stop pin is not provided with it.

Preferably, the valve deck lower end is fixed on valve body top by valve deck bolt.

Preferably, pressing plate, gland and filler are equipped on the outside of the valve deck with valve stem contacts end to be used to seal, the valve Lid is fixed by follower bolt and pressing plate, and the pressing plate compresses gland, and filler is equipped with below the gland.

The improved fourth stage sleeve of the utility model discards barrier arm, small, can save 50% raw material；Structure is more Add simple, the improved sleeve process-cycle shortens 2/3, it is only necessary to 6.5 days, get caught up in completely chemical enterprise maintenance valve with Change the period.First order sleeve, second level sleeve, third level sleeve increase stop pin, can prevent valve medium quickly through Caused sleeve autobiography when sleeve avoids sleeve oneself rotation caused by medium in valve that from leading to sleeve and compensating cylinder and valve Sealing fiting effect between seat leads to valve leakage and noise is big in use.

Description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon：

Fig. 1 is existing skill level Four art tube-in-tube structure schematic diagram；

Fig. 2 is prior art fourth stage sleeve schematic diagram；

Fig. 3 is the regulating valve structure schematic diagram that the utility model includes novel level Four tube-in-tube structure；

Fig. 4 is that the utility model includes novel level Four tube-in-tube structure schematic diagram；

Fig. 5 is the utility model fourth stage sleeve schematic diagram；

1- valve bodies, 2- valve decks, 3- valve seats, 4- first order sleeves, the second level 5- sleeve, 6- third level sleeves, the 7- fourth stages Sleeve, 8- balance bars, after 9- balanced seal rings, 10- valve plugs, 11- valve rods, 12- stop pins, 13- follower bolts, 14- pressing plates, 15- glands, 16- fillers, 17- valve deck bolts, 18- barrier arms.

Specific implementation mode

The utility model is described in detail with reference to specific embodiment.Following embodiment will be helpful to this field Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made. These belong to the scope of protection of the utility model.

As seen in figures 3-5, a kind of regulating valve including novel level Four tube-in-tube structure, including valve body 1, method in the valve body 1 Orchid is equipped with valve deck 2, and 2 lower end of the valve deck is fixed on 1 top of valve body by valve deck bolt 17, and it is logical that the valve deck 2 is equipped with one To the valve rod 11 of 1 inner cavity of valve body, valve seat 3 is housed among the valve body 1, on the valve seat 3 superposition be equipped with first order sleeve 4, Second level sleeve 5, third level sleeve 6 and fourth stage sleeve 7, after balanced seal ring 9 is packed on compensating cylinder 8 superposition be assembled to first 7 on grade sleeve 4, second level sleeve 5, third level sleeve 6 and fourth stage sleeve, valve plug 10, institute are housed in the fourth stage sleeve 7 It states valve plug 10 to connect with valve rod 11, the valve plug 10 can move up and down with valve rod 11, the first order sleeve 4, second level sleeve 5 and third level sleeve 6 be respectively arranged with stop pin 12,2 lower end of the valve deck is fixed on by valve deck bolt 17 on valve body 1 Portion, 2 outside of the valve deck are equipped with pressing plate 14, gland 15 and filler 16 with 11 contact jaw of valve rod and are used to seal, the valve deck 2 It is fixed by follower bolt 13 and pressing plate 14, the pressing plate 14 compresses gland 15, and 15 lower section of the gland is set There is filler 16.

Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, This has no effect on the substantive content of the utility model.

Claims (3)

1. a kind of regulating valve including novel level Four tube-in-tube structure, which is characterized in that including valve body (1), method in the valve body (1) Orchid is equipped with valve deck (2), and the valve deck (2) is equipped with a valve rod (11) for leading to valve body (1) inner cavity, is filled among the valve body (1) Have a valve seat (3), on the valve seat (3) superposition be equipped with first order sleeve (4), second level sleeve (5), third level sleeve (6) and Fourth stage sleeve (7), balanced seal ring (9) is packed on compensating cylinder (8), and superposition is assembled to first order sleeve (4), second level set afterwards On cylinder (5), third level sleeve (6) and fourth stage sleeve (7), valve plug (10), the valve plug are housed in the fourth stage sleeve (7) (10) it is connect with valve rod (11), the valve plug (10) can move up and down with valve rod (11), the first order sleeve (4), the second level Sleeve (5) and third level sleeve (6) are respectively arranged with stop pin (12).

2. a kind of regulating valve including novel level Four tube-in-tube structure according to claim 1, which is characterized in that the valve deck (2) lower end is fixed on valve body (1) top by valve deck bolt (17).

3. a kind of regulating valve including novel level Four tube-in-tube structure according to claim 1 or 2, which is characterized in that described Pressing plate (14), gland (15) and filler (16) are equipped on the outside of valve deck (2) with valve rod (11) contact jaw to be used to seal, the valve Lid (2) is fixed by follower bolt (13) and pressing plate (14), and the pressing plate (14) compresses gland (15), the filler Filler (16) is equipped with below gland (15).