CN201462055U

CN201462055U - Dual-control ball valve capable of sampling on line

Info

Publication number: CN201462055U
Application number: CN200920121491XU
Authority: CN
Inventors: 朱福敏; 潘秀仁
Original assignee: ZHEDONG HIGH AND MIDDLE PRESSURE VALVE CO Ltd
Current assignee: ZHEDONG HIGH AND MIDDLE PRESSURE VALVE CO Ltd
Priority date: 2009-05-31
Filing date: 2009-05-31
Publication date: 2010-05-12
Anticipated expiration: 2019-05-31

Abstract

The utility model relates to a dual-control ball valve capable of sampling on line, which comprises a valve body, a valve cover, valve rods, valve balls, valve seats and operating mechanisms; the dual-control ball valve is characterized in that two groups of valve balls and two groups of valve rods are arranged in the valve body, two groups of valve seats are respectively arranged at both sides of the two groups of valve balls, a bearing is respectively arranged at the top ends of the two groups of valve balls, one ends of the two groups of valve rods are respectively penetrated through the bearing and then connected with the two groups of valve balls, and the other ends of the two groups of valve rods are penetrated through the valve body and then respectively connected with two groups of independent operating mechanisms; a sampling control valve is arranged between the two groups of valve balls, and the sampling control valve is communicated with a passage of the valve body; and the dual-control ball valve has the advantages that when media enter the valve body, the two groups of valve rods and the two groups of valve balls are controlled to rotate through the two groups of operating mechanisms so as to realize the output control for a single medium or different mixed media, and the media are discharged through the sampling control valve so as to achieve the purpose of sampling fluid media, and thus not only the real-time sampling of the single medium or the different mixed media can be realized, but also the corresponding cost can be simultaneously lowered.

Description

A kind of two valve-control sphericals that can online sampling

Technical field

The utility model relates to a kind of valve, relates to a kind of two valve-control sphericals that can online sampling in particular, is mainly used in the relevant industries pipe-line system engineerings such as oil, rock gas.

Background technique

Existing ball valve mainly includes valve body, valve gap, valve seat, valve rod, valve ball and operating device, the sealing of its valve is to realize by valve ball extruding valve seat, it is the angle of swing realization of controlling valve ball by valve rod that its cut-out is dammed, because its compact structure, easy operating and maintenance have been widely used in the various pipes systems engineering; But,, obviously can't satisfy the demands for some pipework that needs online sampling because this ball valve only just has the function that the control of opening and closing is dammed; Such as need carry the list that extracts real-time in the pipeline of different medium or same media to plant dielectric sample or two mutually mixed dielectric samples of pipeline internal medium from two, the then minimum three groups of valves of installation that need could extract, its cost is higher relatively like this, and is not easy to daily maintenance; Thereby improved the overall cost of operation of pipeline.

Summary of the invention

Do not have technical problems such as online sampled functions in order to solve existing ball valve; The utility model provides a kind of two valve-control sphericals that can online sampling, and it is simple in structure, and is reasonable in design, and it not only has and cuts off the function of damming, and simultaneously, also has online sampled functions.

For solving above technical problem, the technological scheme that the utility model is taked is a kind of two valve-control sphericals that can online sampling, it includes valve body, valve gap, valve rod, valve ball, valve seat and operating device, described valve gap is fixedlyed connected with valve body, described valve seat places in the valve body, described valve rod one end places in the valve body and is connected with valve ball, and its other end is connected with operating device; Be provided with two groups of valve balls, valve rod in the described valve body, described two groups of valve ball both sides respectively are provided with two groups of valve seats, described two groups of valve ball tops respectively are provided with a bearing, described two groups of valve rod one ends pass bearing respectively and link to each other with two groups of valve balls, the other end of its two groups of valve rods pass valve body respectively with two groups independently operating device link to each other; Be provided with a sampling control valve between described two groups of valve balls, this sampling control valve communicates with the passage of valve body.

Further, be equipped with the opening slot of an annular on described four groups of valve seats that are installed in the valve body, the opening applying valve channel of this annular opening groove is provided with four groups of oiling fat valves in that described valve body one side is corresponding, and the annular opening groove in this oiling fat valve and the valve body on four groups of valve seats communicates.

Further, described valve body is provided with two pack supports, is equipped with a mounting hole on this two pack support; Described two groups of valve rod one ends pass the support mounting hole respectively and link to each other with operating device, and described two groups of operating devices are installed in respectively on two pack supports, are provided with an oiling fat valve equally in described two pack supports, one side, and this oiling fat valve communicates with the support mounting hole.

Further, the below of two groups of cavitys respectively is provided with a blowdown control valve in the described valve body, and these two groups of blowdown control valves communicate with two groups of cavitys in the valve body respectively.

Further, described valve body one side also is provided with two groups of outlet valves, and these two groups of outlet valves communicate with two groups of cavitys in the valve body respectively.

The beneficial effects of the utility model are that two groups of valve rods are installed in valve body, valve ball, and by different operating device actuate valve stem and valve ball, and between two groups of valve balls, be provided with one the sampling control valve, adopt this structure, valve body one end connects a conveyance conduit, when medium is in pipeline enters valve body, control the rotation of corresponding two groups of valve rods and valve ball by two groups of operating devices, just can realize output control to single medium or different mixed medium, medium is discharged through the sampling control valve, just can reach the purpose of flowing medium sampling, can not only realize the real time sample of single medium or different mixed mediums like this, simultaneously, also can reduce corresponding cost.

Description of drawings

Fig. 1 is the sectional structure chart of a kind of two valve-control sphericals that can online sampling of the utility model embodiment

Fig. 2 looks partial sectional view for a kind of two valve-control sphericals right side that can online sampling of this real new embodiment

Fig. 3 is a P place enlarged view among Fig. 2

Specific embodiments

Below in conjunction with accompanying drawing the utility model mode of execution is described further:

As shown in Figure 1, a kind of two valve-control sphericals that can online sampling of the utility model, it includes valve body 1, valve gap 2, valve rod 3, valve ball 4, valve seat 5 and operating device 6, described valve gap 2 is fixedlyed connected with valve body 1, described valve seat 5 places in the valve body 1, described valve rod 3 one ends place in the valve body 1 and are connected with valve ball 4, and its other end is connected with operating device 6; Do not have online sampled functions in order to solve existing ball valve, be provided with two groups of valve balls 4, valve rod 3 in the described valve body 1, described two groups of valve ball 4 both sides respectively are provided with two groups of valve seats 5, more flexible for guaranteeing valve ball 4 rotations, the operation moment of torsion that reduces to open and close, described two groups of valve ball 4 tops respectively are provided with a bearing 41, and described two groups of valve rod 3 one ends pass bearing 41 respectively and link to each other with two groups of valve balls 4, the other end of its two groups of valve rods 3 pass valve body 1 respectively with two groups independently operating device 6 link to each other; For making the online sampling that valve can be real-time, between described two groups of valve balls 4, be provided with a sampling control valve 7, this sampling control valve 7 communicates with the passage 11 of valve body 1; Two groups of valve rods 3 are installed in valve body 1, valve ball 4, and by different operating devices 6 actuate valve stem 3 and valve ball 4, and between two groups of valve balls 4, be provided with one the sampling control valve 7, adopt this structure, valve body 1 one ends connect a conveyance conduit, when medium enters in the valve body 1 from pipeline, by of the rotation of the corresponding two groups of valve rods 3 of two groups of operating devices, 6 controls with valve ball 4, just can realize output control to single medium or different mixed medium, medium is discharged through the sampling control valve, just can reach the purpose of flowing medium sampling, can not only realize the real time sample of single medium or different mixed mediums like this, simultaneously, also can reduce corresponding cost.

In the present embodiment, in order to be beneficial to the keying of ball valve, reduce the friction between valve ball 4 and valve seat 5 sealing pairs, be equipped with the opening slot 51 of an annular on described four groups of valve seats 5 that are installed in the valve body 1, the passage 11 of the opening applying valve body 1 of this annular opening groove 51, be provided with four groups of greasing fuel taps 8 in that described valve body 1 one sides are corresponding, the annular opening groove 51 in this greasing fuel tap 8 and the valve body 1 on four groups of valve seats 5 communicates; By oiling fat valve 8 lubricant oil is injected in the valve seat 5, the sealing surface to valve seat 5 that can be real-time through the opening slot 51 of valve seat 5 is lubricated, adopt this structure, can reduce the frictional force between valve ball 4 and valve seat 5 sealing pairs greatly, be more conducive to the keying of ball valve, therefore, the mode of execution of present embodiment is a preferred implementation.

In the present embodiment, be the installation of easy-to-operat mechanism 6, on described valve body 1, be provided with two pack supports 12, be equipped with a mounting hole 121 on this two pack support 12; One end of described two groups of valve rods 3 passes support mounting hole 121 respectively and links to each other with operating device 6, described two groups of operating devices 6 are installed in respectively on two pack supports 12, be provided with an oiling fat valve 8 equally in described two pack supports, 12 1 sides, this oiling fat valve 8 communicates with support mounting hole 121; Be equipped with a support 12, the installation of the mechanism 6 that not only is convenient to operation simultaneously, is provided with an oiling fat valve 8 on support 12, utilize this oiling fat valve 8 regularly to carry out maintaining to valve ball 4; Adopt this structure, can effectively guarantee the fast opening and closing of ball valve, reduce to open and close the wearing and tearing of torsion and valve rod 3 and valve ball 4 joints, prolong the whole service life of ball valve, therefore, the mode of execution of present embodiment is a preferred implementation.

In the present embodiment, in order to prevent the later medium sampling of retention medium influence in the cavity 13, detection accuracy to next medium sampling, two groups of cavity 13 belows respectively are provided with a blowdown control valve 9 in the described valve body 1, these two groups of blowdown control valves 9 communicate with two groups of cavitys 13 in the valve body 1 respectively, after the medium sampling is finished, can the residual medium in the cavity 13 be got rid of by blowdown control valve 9, in order to avoid influence the medium detection accuracy when causing down sub-sampling, therefore, the embodiment of this enforcement is a preferred implementation.

In the present embodiment, for convenient residual medium of discharging in the cavity 13, also be provided with two groups of outlet valves 10 in described valve body 1 one sides, these two groups of outlet valves 10 communicate with two groups of cavitys 13 in the valve body respectively; Because ball valve is in the process of fed sheet of a media, the pressure of its valve body 1 pressure inside and outside air forms pressure reduction, after blowdown control valve 9 is opened, the effect of residual medium pressure difference can not discharged, and discharge gas in the valve body 1 by outlet valve 10, and can make air pressure and external pressure in the valve body 1 form pressure balance, can discharge the residual medium in the cavity 13 faster, therefore, the mode of execution of present embodiment is a preferred implementation.

The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.

Claims

One kind can online sampling two valve-control sphericals, it includes valve body, valve gap, valve rod, valve ball, valve seat and operating device, described valve gap is fixedlyed connected with valve body, described valve seat places in the valve body, described valve rod one end places in the valve body and is connected with valve ball, and its other end is connected with operating device; It is characterized in that being provided with in the described valve body two groups of valve balls, valve rod, described two groups of valve ball both sides respectively are provided with two groups of valve seats, described two groups of valve ball tops respectively are provided with a bearing, described two groups of valve rod one ends pass bearing respectively and link to each other with two groups of valve balls, the other end of its two groups of valve rods pass valve body respectively with two groups independently operating device link to each other; Be provided with a sampling control valve between described two groups of valve balls, this sampling control valve communicates with the passage of valve body.
2. a kind of two valve-control sphericals that can online sampling according to claim 1, it is characterized in that being equipped with on described four groups of valve seats that are installed in the valve body opening slot of an annular, the opening applying valve channel of this annular opening groove, be provided with four groups of greasing fuel taps in that described valve body one side is corresponding, the annular opening groove in this greasing fuel tap and the valve body on four groups of valve seats communicates.
3. a kind of two valve-control sphericals that can online sampling according to claim 1 and 2 is characterized in that described valve body is provided with two pack supports, are equipped with a mounting hole on this two pack support; One end of described two groups of valve rods passes the support mounting hole respectively and links to each other with operating device, and described two groups of operating devices are installed in respectively on two pack supports, is provided with an oiling fat valve equally in described two pack supports, one side, and this oiling fat valve communicates with the support mounting hole.
4. a kind of two valve-control sphericals that can online sampling according to claim 1 and 2 is characterized in that the cavity below of two groups of valve balls in the described valve body respectively is provided with a blowdown control valve, and this blowdown control valve communicates with the interior two groups of cavitys of valve body.
5. a kind of two valve-control sphericals that can online sampling according to claim 3 is characterized in that the cavity below of two groups of valve balls in the described valve body respectively is provided with a blowdown control valve, and this blowdown control valve communicates with the interior two groups of cavitys of valve body.
6. a kind of two valve-control sphericals that can online sampling according to claim 1 and 2 is characterized in that described valve body one side also is provided with two groups of outlet valves, and these two groups of outlet valves communicate with two groups of cavitys in the valve body respectively.
7. a kind of two valve-control sphericals that can online sampling according to claim 5 is characterized in that described valve body one side also is provided with two groups of outlet valves, and these two groups of outlet valves communicate with two groups of cavitys in the valve body respectively.