CN201121729Y

CN201121729Y - Tank bottom discharge valve

Info

Publication number: CN201121729Y
Application number: CNU2007200418357U
Authority: CN
Inventors: 洪超群
Original assignee: SUZHOU RUIKE VALVES MACHINERY CO Ltd
Current assignee: SUZHOU RUIKE VALVES MACHINERY CO Ltd
Priority date: 2007-11-26
Filing date: 2007-11-26
Publication date: 2008-09-24
Anticipated expiration: 2017-11-26

Abstract

The utility model provides a tank bottom discharge valve comprising a joint flange, a main valve body, stud-bolts, nuts, a sealing base, a through hole ball body and a valve rod, wherein, the joint flange and the main valve body are connected with a tank bottom, the stud-bolts and the nuts are used for connecting the main valve body with the outer end surface of the joint flange, the sealing base and the through hole ball body are arranged in the chamber of the main valve body, the valve rod passing through the main valve body is connected with the through hole ball body, and a secondary valve body is permanently arranged between the chamber inner side of the main valve body and the sealing base. During use, the structure cannot have the phenomenon that the crystallization is likely to occur on the sealing surface of the traditional tank bottom valve, or particle impurities are adhered on the sealing surface, and the valve rod rotates along the center all along, and has no axial displacement, thereby saving space; after the valve is opened, no obstacle exists in the channel, and no structure changing the liquid flow direction occurs, thus, the flow resistance is very small, and the pressure loss is less.

Description

Jar end discharging valve

Technical field

The utility model relates to a kind of valve, specifically is a kind of blowing ball valve that is applied to the discharging feed liquid on the equipment such as petrochemical industry, oil, rock gas, oil refining, chemical industry, chemical fibre, combustion gas, pharmacy, food, electric power, metallurgy.

Background technique

Jar end discharging valve in the market adopts cut-off type structure (as shown in Figure 1) mostly, is got by stud 6 lockings by valve body 1 and adpting flange 9.This kind valve is in actual application, and using effect is not very desirable: (1) sealing is poor, goes out crystallization at sealing surface easily as material in the jar and separates out, particulate material is perhaps arranged easily attached on the sealing surface, cause poorly sealedly, cause interior leakage easily, at valve rod 20 places, filling material is selected for use and is designed unreasonable, time has been grown aging easily, causes sealing effect undesirable, leaks easily, regardless of letting out in being or leaking, do not allow in actual applications to occur.(2) flow resistance is big, because this kind valve when in use, flap 26 is in the pipeline 25 all the time, causes flow resistance big.(3) this valve is in opening-closing process, and valve rod 20 moves up and down, and it is big to take up room.(4) opening and closing time is long, no matter is to open or close, and this valve all can only realize by rotating handwheel, because the stroke that opens and closes is longer, and the also corresponding increase of its time.

For addressing this problem, Chinese patent CN90221046 discloses a kind of ball formula discharging valve, and its spheroid directly is close on the flanged surface, can produce follow-up assembling inconvenience, is difficult for defectives such as sealing, also is easy to generate inside and outside leakage.Therefore this technology is difficult to satisfy the demand that modernization industry is produced.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of good seal performance, flow resistance little, not fragile, open and close jar end discharging valve rapidly.

The purpose of this utility model is achieved through the following technical solutions:

Discharging valve at the bottom of a kind of jar, the stud that comprises the adpting flange that is connected with jar end, main valve body, connection main valve body and adpting flange exterior edge face and nut, the endoceliac sealing seat of main valve and through hole spheroid, pass the socket head screw and the packing ring of main valve body and the valve rod that is connected with the through hole spheroid, gland, gland, stationary gland, be fixed with inferior valve body between described main valve body cavity inboard and the sealing seat; Be lined with pad, packing ring, spring, O RunddichtringO, filler between the bottom of described valve rod, middle part, top and the main valve body; The foot of described valve rod is provided with the steel ball that contacts with the through hole spheroid.

Further, be provided with O RunddichtringO and pad between described main valve body and time valve body; Be provided with pad between described main valve body and the adpting flange.

Again further, the inboard of described valve body is the sealing seat groove, and the outside is tubaeform, and described sealing seat is set in the set groove of main valve body and time valve body.

Further, the axis of described main valve body becomes the angle of 60-90 degree with the axes intersect of valve rod.

The beneficial effects of the utility model are embodied in: the secondary employing between valve seat and the spheroid of sealing seals, and this structure traditional tank bottom valve sealing surface possibility crystallization can not occur or have particle dress impurity to be attached on the sealing surface in using process; In use, valve rod rotates around the center all the time, and valve rod can not saved the space in that displacement is axially arranged; Valve is after unlatching, and without any the structure of obstacle and appearance change flow direction, its flow resistance is very little in the passage, and the pressure loss is little.This valve body structure has fire-proof function, and the foot of valve rod is provided with the steel ball that contacts with spheroid, has the function of eliminating static.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Fig. 1: the schematic representation of the prior art of jar end discharging valve;

Fig. 2: the sectional view of of the present utility model jar of end discharging valve.

The implication of each reference character is as follows among the figure:

1 main valve body, 2 sealing seats, 3 through hole spheroids

4O RunddichtringO 5 nuts 6 stud

7 pads, 8 pads, 9 adpting flanges

10 valve body 11 steel balls 12 pads

13 packing rings, 14 spring 15O RunddichtringOs

16 fillers, 17 fillers, 18 belleville springs

19 nuts, 20 valve rods, 21 packing rings

23 socket head screws, 24 glands, 25 pipelines

26 flaps

Embodiment

Discharging valve at the bottom of the utility model has disclosed a kind of jar is by forming with the stud 6 and the nut 5 of adpting flange 9 exterior edge faces with the adpting flange 9 that is connected at the bottom of the jar, main valve body 1, connection main valve body 1.Structure still adopt tradition jar end discharging valve aspect being connected at the bottom of the jar has so just guaranteed to integrate with on the replacing of new product and old product, and can not cause jar scrapping or can only adopting traditional jar end discharging valve.

Be provided with sealing seat 2 and through hole spheroid 3 in the chamber of main valve body 1, valve rod 20 passes main valve body 1 and is connected with through hole spheroid 3, and valve rod 20 peripheries are provided with the socket head screw 23 and the packing ring 21 of gland 24, gland 22 and stationary gland 22.Be lined with pad 12, packing ring 13, spring 14, O RunddichtringO 15, filler 16,17 between the bottom of described valve rod 20, middle part, top and the main valve body 1; The foot of described valve rod 20 is provided with the steel ball 11 that contacts with through hole spheroid 3, and top is provided with nut 19.

Be fixed with time valve body 10 between inboard, described main valve body 1 chamber and the sealing seat 2; Be provided with O RunddichtringO 4 and pad 7 between described main valve body 1 and time valve body 10.The inboard of described valve body 10 is the sealing seat groove, and the outside is tubaeform.Described sealing seat 2 is set in the set groove of main valve body 1 and time valve body 10.Be provided with pad 8 between described main valve body 1 and the adpting flange 9.The axis space intersection of the axis of described main valve body 1 and valve rod 20 and become the angle of 60-90 degree, preferred 75 degree of this angle are provided with.

Following mask body is introduced the movement process of present embodiment: when valve rod rotates around the axle center, valve rod drives spheroid and rotates, make it reach the effect of opening or closing, on Placement at the bottom of the jar, the big flange end of this tank bottom valve was connected with a jar end, the small end outlet is connected with pipeline, for preventing that exporting medium condenses, and can add the insulation jacket structure.Type of belt drive can with manual, electronic, pneumatic, surge etc., and can realize remote auto control.

More than by specific embodiment technical solutions of the utility model have been done to further specify, the example that provides only is an exemplary applications, can not be interpreted as any restriction to the utility model claim protection domain.

Claims

1. jar end discharging valve, sealing seat (2) in the stud (6) that comprise the adpting flange (9), the main valve body (1) that are connected with jar end, connects main valve body (1) and adpting flange (9) exterior edge face and nut (5), main valve body (1) chamber and through hole spheroid (3), pass the socket head screw (23) and the packing ring (21) of main valve body (1) and the valve rod (20) that is connected with through hole spheroid (3), gland (24), gland (22), stationary gland (22), it is characterized in that: be fixed with inferior valve body (10) between inboard, described main valve body (1) chamber and the sealing seat (2); Be lined with pad (12), packing ring (13), spring (14), O RunddichtringO (15), filler (16,17) between bottom, middle part, top and the main valve body (1) of described valve rod (20); The foot of described valve rod (20) is provided with the steel ball (11) that contacts with through hole spheroid (3).

2. according to claim 1 jar of end discharging valve is characterized in that: be provided with O RunddichtringO (4) and pad (7) between described main valve body (1) and time valve body (10).

3. according to claim 1 jar of end discharging valve, it is characterized in that: the inboard of described valve body (10) is sealing seat (a 2) groove, and the outside is tubaeform.

4. jar end according to claim 3 discharging valve is characterized in that: described sealing seat (2) is set in the set groove of main valve body (1) and time valve body (10).

5. according to claim 1 jar of end discharging valve is characterized in that: be provided with pad (8) between described main valve body (1) and the adpting flange (9).

6. according to claim 1 jar of end discharging valve, it is characterized in that: the axis of described main valve body (1) becomes the angle of 60-90 degree with the axes intersect of valve rod (20).