CN202091525U

CN202091525U - Multifunctional pressure gauge valve

Info

Publication number: CN202091525U
Application number: CN2011201620395U
Authority: CN
Inventors: 彭国军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-20
Filing date: 2011-05-20
Publication date: 2011-12-28
Anticipated expiration: 2021-05-20

Abstract

The utility model discloses a multifunctional pressure gauge valve, which is mainly composed of a valve body, a valve cover, a bonnet, a valve stem and a valve flap connected on the valve stem; the valve cover is connected with the valve body to form a valve cavity; the valve body is formed with a medium guiding-in hole and a medium guiding-out hole in communication with the valve cavity, and a sampling discharging channel in communication with the medium guiding-out. By using the pressure gauge valve, a user can test pressure and sample medium simultaneously and conveniently only by communicating a connecting tube with a pressure vessel to be tested or the tested point of a pipeline. The pressure gauge valve of the utility model achieves the outstanding advantages of easy producing and manufacturing, convenient assembling and using, high sealing performance, safe and non-pollution operation, and high test precision; is especially adapted to the work places where pressure test and sampling detection are performed regularly to pipe-line systems and storage containers for distributing and delivering pressure medium.

Description

The multi-purpose pressure meter valve

Technical field:

The utility model relates to Gauge Valves, specifically a kind of multi-purpose pressure meter valve, and it is specially adapted to the pipe network system of transmission ﹠ distribution pressurization pressure medium and storage container carries out the periodic pressure test and sampling detects.

Background technique:

In numerous production industries such as China's oil, chemical industry, food, medicine and thermal technology instrument instrument, because productive technology management rules requirement, for the storage container and the pipe network system of some specific transmission ﹠ distribution pressurization pressure medium, need that termly the gas in container and the pipe-line system or liquid medium are carried out pressure test and sampling and carry out chemical composition and detect.At present, modal mode is fixing equipped pressure gauge and a sampler on container or pipeline, and this method has the advantage of easy operating simple in structure.But, no doubt about it, it also exists some to use defective in actual motion: because pressure gauge and sampler are that extended immobilization is installed on container or the pipeline, it can be subjected to the erosion of medium for a long time in running, particularly in the stronger media environment of corrosivity, to the corrosive action of pressure gauge and sampler with even more serious, can in pressure gauge and sampler pipeline, accumulate some dirt impurity unavoidably, this will cause the pressure test error to increase and pollute the sampling sample, have a strong impact on the accuracy that pressure test and sampling detect, also can bury serious potential safety hazard the pressure vessel and equipment system.In order to address this problem, the pressure meter valve series products that some are used to detect container or pipeline pressure also appears recently, generally be pressure meter valve to be fitted on the gauge stand of test point of container or pipeline carry out Pressure testing termly, also can disassemble and clear up maintenance, this has certain effect to the accuracy that guarantees pressure test.But existing pressure meter valve exists mostly that function of use is single, fitting operation trouble, the relatively poor technical bug of sealability, and this is that current stress table valve requires further improvement and perfect place, this also just the utility model want the problem that solves.

The model utility content:

The purpose of this utility model is to put forward a kind of multi-purpose pressure meter valve for the above-mentioned deficiency that overcomes existing pressure meter valve, it can carry out pressure test and medium sampling multi-mode operation simultaneously, has that structure is simple and direct, easy to use, an advantage of good seal performance, testing precision height and sampling operation safety non-pollution.

A kind of multi-purpose pressure meter valve that the utility model proposes is realized by following technological scheme: it comprises valve body, valve gap, bonnet and valve rod, said valve rod is to be fitted to valve gap with being threaded, valve gap is fixedly connected on valve body and forms valve pocket with valve body, the flap that is connected in the valve rod bottom is positioned at valve pocket, valve body is provided with medium leadout hole and medium introduction hole, said medium leadout hole is connected with the valve pocket bottom by through hole, the medium introduction hole is communicated in valve pocket bottom center position by vertical hole, it is characterized in that: said flap is arranged to the nose end interruption-forming conical surface seal structure in inverted cone shape and vertical hole, valve body is provided with the sampling screw, said sampling screw is connected with the medium leadout hole by pore, the sampling bolt that is fitted in the sampling screw is provided with the medium discharge orifice, is provided with sealing conehead and the inclined hole that is communicated with the medium discharge orifice in the end of sampling bolt.It is to utilize the flap of inverted cone shape and vertical hole to form the conical surface seal structure, can easily the pressure medium in container or the pipeline be derived, and carry out pressure test by the pressure gauge that is fitted to the medium leadout hole, simultaneously, the keying seal arrangement that forms by sealing conehead and the pore that is communicated with the medium leadout hole of sampling bolt, the dielectric sample that is convenient to especially in regular evacuation container or the pipeline detects usefulness for chemical analysis, also can on purpose carry out the blowdown operation of self cleaning earial drainage as required, have the multi-functional characteristic on a-table-multi-purpose way by the medium discharge orifice.

The utility model also has following technical characteristics:

Top at valve gap is pressed with seal washer by bonnet, can prevent from effectively to have excellent sealability by dielectric leakage.

Position, medium introduction hole outer end at valve body is fitted with connecting tube by the loose joint nut, is fitted with the manometer tube joint at the position, medium leadout hole outer end of valve body.This structural design by the equipped connecting tube of loose joint nut is convenient to extract the free of contamination medium of acquisition at container and pipe-line system test point especially, and this has positive effect to improving pressure test with the accuracy that sampling detects.

The utlity model has following outstanding advantage:

The utility model is to constitute the sampling seal arrangement at the equipped sealing conehead of taking a sample bolt and being provided with by the end in the pore place of medium leadout hole, and the medium in container or the pipeline test point is imported in the pressure meter valve by the equipped connecting tube of loose joint nut, can carry out pressure test easily, the bolt of operation sampling simultaneously can obtain in good time dielectric sample easily, the utlity model has the outstanding advantage that structure is simple and direct, equipped conveniently, sampling is true and reliable, sealingly secure is pollution-free and testing precision is high.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A view of Fig. 1, shows the structural representation that equipped sampling screw of taking a sample bolt is connected with the medium leadout hole by pore.

Fig. 3 is the B-B view of Fig. 1, shows that the medium introduction hole is communicated in the structural representation of valve pocket bottom by vertical hole.

Fig. 4 is the structural representation (amplification) of sampling bolt.

Description of reference numerals:

1 is valve rod, and 2 is bonnet, and 3 is seal washer, and 4 is flap, 5 is valve pocket, and 6 is valve body, and 7 is vertical hole, and 8 is pore, 9 is through hole, and 10 is the medium leadout hole, and 11 is valve gap, and 12 is the manometer tube joint, 13 is handwheel, and 14 are the sampling bolt, and 15 are the sampling screw, and 16 are the loose joint nut, 17 is connecting tube, and 18 is the medium introduction hole, and 19 for connecing the sample mouth, 20 is the medium discharge orifice, and 21 is inclined hole, and 22 are the sealing conehead.

Embodiment:

Further describe embodiment of the present utility model below in conjunction with accompanying drawing:

A kind of multi-purpose pressure meter valve that the utility model proposes: it is mainly by valve body 6, valve gap 11, bonnet 2, seal washer 3 and valve rod 1 constitute, said valve gap 11 is fixedly connected on valve body 6 and forms valve pocket 5 with valve body 6, valve body 6 is provided with medium leadout hole 10 and medium introduction hole 18, said medium leadout hole 10 is connected with valve pocket 5 bottoms by through hole 9, position, outer end at medium introduction hole 18 is fitted with connecting tube 17 by loose joint nut 16, medium introduction hole 18 is the middle positions that are communicated in valve pocket 5 bottoms by vertical hole 7, be fitted with the manometer tube joint of using for the setting pressure table 12 at the position, outer end of medium leadout hole 10, valve rod 1 is to be connected in valve gap 11 with thread fiting mode, the flap 4 that is connected in valve rod 1 bottom is positioned at valve pocket 5, flap 4 is made the inverted cone shape, and make the flap 4 and the port in vertical hole 7 form the conical surface seal structure, also be provided with sampling screw 15 in the side of valve body 6, said sampling screw 15 is to be connected with medium leadout hole 10 by pore 8, the sampling bolt 14 that is fitted in the sampling screw 15 is provided with medium discharge orifice 20, be arranged at the sealing conehead 22 of sampling bolt 14 ends and the nose end formation sampling sealing configuration of pore 8, also be provided with inclined hole 21 at sampling bolt 14 front-end faces and be connected with medium discharge orifice 20 and constitute the passage that leaks of taking a sample, be convenient to sampling operation especially.It is performed such equipped operation: the passage that leaks of at first tightening handwheel 13 and sampling bolt 14 closing pressure table valves and sampling, and pressure gauge is fitted to manometer tube joint 12, again connecting tube 17 is connected with the pressurized container to be detected or the test point of pipeline, can carry out pressure test and sampling operation as follows: slowly rotate handwheel 13 and upwards mention flap 4 slightly, with the pressure medium in container or the pipeline by connecting tube 17 through medium introduction hole 18, vertically hole 7 imports in the valve pocket 5, via through holes 9 again, medium leadout hole 10 acts on pressure gauge, can carry out the pressure test operation to the medium in container or the pipeline.When needs extract dielectric sample, slowly backward rotation sampling bolt 14 retreats it, at this moment, the medium of medium leadout hole 10 will be imported in the sampling screw 15 and through inclined hole 21, medium discharge orifice 20 by pore 8 and outwards release, can connect sample mouth 19 reception acquisition dielectric samples, and then tighten sampling bolt 14 and close the passage that leaks for check and analysis usefulness.For nontoxic medium, when the valve inner duct being removed contamination, can unscrew sampling bolt 14 and take pressure gauge as needs, open handwheel 13 again and can make the outside earial drainage of medium, can clear up blowdown easily.The utility model structure is simple and direct, equipped easy to use, sealability is high, testing precision is high, has the remarkable characteristic of a-table-multi-purpose.

Claims

1. multi-purpose pressure meter valve, it comprises valve body (6), valve gap (11), bonnet (2) and valve rod (1), said valve rod (1) is to be fitted to valve gap (11) with being threaded, valve gap (11) is fixedly connected on valve body (6) and forms valve pocket (5) with valve body (6), the flap (4) that is connected in valve rod (1) bottom is positioned at valve pocket (5), valve body (6) is provided with medium leadout hole (10) and medium introduction hole (18), said medium leadout hole (10) is connected with valve pocket (5) bottom by through hole (9), medium introduction hole (18) is communicated in valve pocket (5) bottom center position by vertical hole (7), it is characterized in that: said flap (4) is arranged to the nose end interruption-forming conical surface seal structure in inverted cone shape and vertical hole (7), valve body (6) is provided with sampling screw (15), said sampling screw (15) is connected with medium leadout hole (10) by pore (8), the sampling bolt (14) that is fitted in the sampling screw (15) is provided with medium discharge orifice (20), is provided with the inclined hole (21) of sealing conehead (22) and connection medium discharge orifice (20) in the end of sampling bolt (14).

2. multi-purpose pressure meter valve according to claim 1 is characterized in that: the top at valve gap (11) is pressed with seal washer (3) by bonnet (2).

3. multi-purpose pressure meter valve according to claim 1 and 2, it is characterized in that: medium introduction hole (18) position, outer end at valve body (6) is fitted with connecting tube (17) by loose joint nut (16), is fitted with manometer tube joint (12) at medium leadout hole (10) position, outer end of valve body (6).