CN201318467Y

CN201318467Y - Filtrating ball valve

Info

Publication number: CN201318467Y
Application number: CNU2008201710525U
Authority: CN
Inventors: 陈志清; 胡丽丽
Original assignee: NINGBO ZHIQING INDUSTRIAL Co Ltd
Current assignee: NINGBO ZHIQING INDUSTRIAL Co Ltd
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-09-30
Anticipated expiration: 2018-12-11

Abstract

Disclosed is a filtrating ball valve, comprising a valve body, a spherical valve core, a handle, a valve rod and a filtrating device. The valve body is provided with a medium flow passage and is provided with an axial hole at the side vertical to the medium flow passage. The spherical valve core can be rotatably arranged in the valve body. The valve rod is arranged in the axial hole, with the two ends respectively connected with the spherical valve core and the handle, and the spherical valve core can rotate under the drive of the handle. The filtrating device is arranged on the valve body. The ball valve is characterized in that straight holes which can be used for mounting instruments are arranged on the outer wall of one side of the medium inflow end of the medium flow passage of the valve body. Compared with the prior art, at least one straight hole which can be used for installing an instrument is arranged on the ball valve which is provided with a filtrating device, and usually, the instrument can be a medium cleanliness detecting instrument; and the impurity concentration in the medium flowing in the pipe is not exactly the same at different time periods, so the user can determine whether the filtrating device needs washing by detecting the impurity concentration in the medium flowing into the ball valve.

Description

A kind of Filtering ball valve

Technical field

The utility model relates to a kind of valve, particularly a kind of ball valve with impurity screening function.

Background technique

At present, in civil area or industrial field, parts such as all kinds of measuring instruments and use equipment are installed on all kinds of water supply, heating, the gas supply pipe system, increase along with service time, the impurity that has in all kinds of flowing mediums can be accumulated in the pipeline and respectively use in the parts, cause line clogging or component wear, influence the degree of accuracy of all kinds of measuring instruments and the working life of equipment.

In order to address these problems, people have been installed various filter plants and valve additional in pipeline, in order to filter and clear up the impurity that accumulates in the long-term using process in pipeline, to guarantee the proper functioning of instrument and equipment.As the patent No. 200620099866.3 Chinese model utility " automatically cleaning ball valve " by in the import of ball valve and outlet, the seal ring of being made by hard material being installed, can be in use, by seal ring the impurity particle on the spool is scraped, can guarantee effectively that impurity particle can not enter in the sealing pair of spool and Sealing formation the working life of having improved ball valve.

But, adopt the filter method of above-mentioned patent structure, when blowdown, regular blanked-off pipe track media passage is normally pulled down filtrating equipment and is carried out impurity and clear up the cleaning that guarantees pipeline.The dismounting filtrating equipment needs a large amount of time of spend like this, and the too much very easy leakage that causes dismounting point of dismounting number of times.Simultaneously, the impurity concentration that flowing medium contains in the pipeline is in each time period and incomplete same, sometimes the impurity concentration in the medium is too high, but do not arrive the time of periodic cleaning, then too high impurity concentration can influence the normal operation of pipeline, in like manner, sometimes the impurity concentration in the medium is on the low side, can prolong the time of periodic cleaning fully, therefore, need carry out periodic measurement, with dismounting filtrating equipment when concentration reaches rating value to the concentration of medium in the pipeline, cleaning pipeline, thereby the maintenance cost of reduction pipeline.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of Filtering ball valve that can be convenient to the measuring channel turbidity test at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this Filtering ball valve includes

One valve body has the MEDIA FLOW circulation passage, is having an axis hole with the perpendicular side of this MEDIA FLOW circulation passage;

One spherical valve core is arranged in the valve body rotationally;

One handle; And

One is arranged on the valve rod in the described axis hole, and its two ends connect spherical valve core and handle respectively, and drives the spherical valve core rotation under handle rotates; And

One filtrating equipment is arranged on the valve body;

It is characterized in that: described valve body flows on the outer wall of holding a side at the medium that is positioned at the MEDIA FLOW circulation passage and also offers the straight hole that can be used for installing instrument.

In order can the medium of the ball valve core of flowing through to be filtered, as preferably, described filtrating equipment can for: include one from the oblique overhanging pipeline of the outer wall of described valve body, the filtering hole that has a built-in tubular filter screen on this pipeline, the oblique perforation of MEDIA FLOW circulation passage of the inner of described filtering hole and described valve body, the outer end of described filtering hole is by detachable end sealing, wherein, the inner of described filter screen extends axially and is arranged in the described MEDIA FLOW circulation passage along the inner of described filtering hole, and described medium flows into described spool through the inner sidewall of this filter screen.

For the ease of the impurity in the separating medium, reach better filtering effect, as preferably, can be along the bottom of described valve body oblique overhanging 45 degree that are of described pipeline, the end face of this pipeline is towards the MEDIA FLOW Inbound of described valve body, and the axis of described pipeline and the axis of described valve body are positioned at same plane.So medium can fall contaminant filter by filter screen before flowing into spool, because being 45 degree, pipeline is provided with, make impurity can be convenient under action of gravity, be slipped to and be in the filter opening that filtering effect is better.

Consider the effectively fixing of filter screen and the reliability of filtering, described valve body forms one and the suitable collar stop of cross section of described filter screen on the inwall of MEDIA FLOW circulation passage, offer groove on this collar stop, the other end of described filter screen is fastened on this groove internal fixation.Therefore, the design of collar stop makes the inwall that the other end of filter screen can valve body MEDIA FLOW circulation passage contact fully, prevents to allow because of the slit that filter screen and valve interior wall exist the impurity in the medium flow among the spool.

For the ease of cleaning and filtrating equipment, described pipeline is connected with a connecting end cover at the port of filtering hole, the other end opening of this connecting end cover seals with an end cap, when the needs cleaning and filtrating equipment, end cap can be pulled down, put at connecting end and a throughway valve is installed and special-purpose washing unit cleans the filter screen that is built in the filtering hole, and, for further improving sealing, prevent dielectric leakage, also be provided with seal ring between the port of described connecting end cover and filtering hole.

For the ease of measuring the medium turbidity test before filtering, described straight hole has two and vertically offer along the top or the both sides of described valve outer wall at least, the turbidity test instrumentation can be according to the convenience of practical operation being inserted in the straight hole from different directions, and, each described straight hole is equipped with the detachable obstruction that is used to seal, and when ball valve normally uses, stops up and seals straight hole, can prevent dielectric leakage, guarantee the sealing of pipeline.

Compared with prior art, advantage of the present utility model is: offered at least one on the ball valve of filtrating equipment the straight hole of instrument can be installed having, usually this instrument can be medium turbidity test measuring instrument, because the impurity concentration that the medium that flows in the pipeline contains is in each time period and incomplete same, can determine whether and to clean filtrating equipment by the detection that the medium impurity concentration of ball valve is gone in convection current.If impurity concentration is too high, then need to close ball valve, filtrating equipment is cleaned; If impurity concentration is on the low side, then can continue to use, prolong the clean time of filtrating equipment, therefore, can accurately hold the Cleaning period of filtrating equipment like this, reduce unnecessary dismounting and waste.And when not carrying out impurity measurement, straight hole can play the effect that effectively prevents dielectric leakage with stopping up sealing.

Description of drawings

Fig. 1 is the utility model embodiment's a three-dimensional exploded view.

Fig. 2 is the three-dimensional structure diagram of the utility model ball valve.

Fig. 3 is the sectional view of ball valve shown in Figure 2.

Fig. 4 is the user mode sectional view of the utility model ball valve.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 4, be a preferred embodiment of the present utility model,

This Filtering ball valve includes

Valve body 1 with MEDIA FLOW circulation passage 12, valve body 1 has an axis hole 11 at vertical side, and the two ends of valve body 1 can connect respectively and be used to realize the pipe joint that is connected with other pipelines;

Be arranged on the spherical valve core 2 in the valve body rotationally, spherical valve core 2 is provided with sealing gasket 21 in the contacting point of its surface, gateway, rear and front end and valve channel 12, can guarantee ball face sealing;

Be arranged on the valve rod 3 in the axis hole, be arranged with O RunddichtringO 31 on the valve rod 3, the two ends of valve rod 3 are two flat sides respectively, the flat side in upper end inserts and is arranged in the flat side of handle 4 endoporus, and fixedly connected with handle 4 by a hexagon nut 41, the flat side in lower end with closely cooperate after groove on being opened in ball valve core 2 is connected, handle with sleeve 4 promptly drives valve rod 3 and rotates together, can realize the opening and closing of spherical valve core 2.

Valve body 1 flows into end one side at the medium that is positioned at spool 2 and also has a pipeline 13, this pipeline 13 is along oblique overhanging 45 degree that are of the outer wall of valve body bottom, the end face of this pipeline 13 is towards the MEDIA FLOW Inbound of valve body 1 (among Fig. 3 or Fig. 4 shown in the arrow), and the axis of the axis of this pipeline 13 and valve body 1 is positioned at same plane;

Wherein, described pipeline 13 offer one with the MEDIA FLOW circulation passage 12 oblique filtering hole that connect 131 of valve body 1, one tubular filter screen 5 is installed in the filtering hole 131, the outer end of this filter screen 5 is positioned at filtering hole 131, and the inner of filter screen 5 extends axially and be arranged in the MEDIA FLOW circulation passage 12 of valve body 1 along filtering hole 131; Valve body 1 also forms one and the cross section of filter screen 5 is suitable and the collar stop 14 of oblique setting on the inwall of MEDIA FLOW circulation passage 12, offer groove 141 on this collar stop 14, and the inner of filter screen 5 then is fastened on this groove 141 internal fixation.

The outer end of filtering hole 131 also is connected with connecting end cover 6, the outer end of filter screen 5 promptly is fastened on the interior shoulder of connecting end cover 6, another opening end of this connecting end cover 6 seals with an end cap 7, when the needs cleaning and filtrating equipment, end cap 7 can be pulled down, installation one throughway valve 8 and special-purpose washing unit clean the filter screen 5 that is built in the filtering hole 131 on connecting end cover 6, and, for further improving sealing, prevent dielectric leakage, also be provided with seal ring 61 between the port of described connecting end cover 6 and filtering hole 131.

Valve body 1 has six boss 15 that offer straight hole 151 medium inflow end one side that is positioned at spool 2 respectively along the outer wall vertical side, can install as being used for the meter specially of checked for impurities concentration in each straight hole 151, wherein, two boss 15 are positioned at the top of valve outer wall, other four boss lay respectively at the both sides of valve body 1 outer wall and relative in twos, the straight hole 151 of each boss 15 has internal thread, and the plug screw 9 that has been threaded respectively is used for shutoff straight hole 151, prevents that medium from leaking from straight hole.

Ball valve is when normal the use, spool 2 is opened, filtering hole 131 openings of pipeline 13 seal with end cap 7, and, each straight hole 151 is all used plug screw 9 shutoff, after medium flows into valve body, through flowing into after the filtration of filter screen 5 in the spool 2, simultaneously, the medium impurity that is filtered can be in filter screen 5 flow into filtering hole 131.

After using a period of time, can select to open wherein any one straight hole 151, plug screws in this straight hole 151 9 are screwed out and install impurity concentration dedicated test instrument, can detect the impurity concentration of pipeline internal medium;

If impurity concentration surpasses desired indicator, do not need this moment cleaning and filtrating equipment, ball valve normally to open and do not influence the use of pipeline;

If detected impurity concentration surpasses desired indicator, need cleaning and filtrating equipment this moment, after closing ball valve, the end cap 7 that is connected filtering hole 131 ports of pipeline 13 is opened, and connecting end put install a straight-through valve 9 ', straight-through valve 9 ' a side can also connect special-purpose washing unit simultaneously and connect the water source, open straight-through valve 9 ' can reach the purpose of cleaning and filtering device with the filter screen 5 in the clear water washing and filtering hole 131.

Claims

1, a kind of Filtering ball valve includes

One valve body (1) has MEDIA FLOW circulation passage (12), is having an axis hole (11) with the perpendicular side of this MEDIA FLOW circulation passage (12);

One spherical valve core (2) is arranged in the valve body (1) rotationally;

One handle (4); And

One is arranged on the valve rod (3) in the described axis hole, and its two ends connect spherical valve core (2) and handle (4) respectively, and drives spherical valve core (2) rotation under handle (4) rotates; And

One filtrating equipment is arranged on the valve body (1);

It is characterized in that: described valve body (1) flows on the outer wall of holding a side at the medium that is positioned at MEDIA FLOW circulation passage (12) and also offers the straight hole (151) that can be used for installing instrument.

2, Filtering ball valve according to claim 1, it is characterized in that: described filtrating equipment includes one from the oblique overhanging pipeline of the outer wall of described valve body (1) (13), the filtering hole (131) that has a built-in tubular filter screen (5) on this pipeline (13), the oblique perforation of MEDIA FLOW circulation passage (12) of the inner of described filtering hole (131) and described valve body (1), the outer end of described filtering hole (131) is by detachable end sealing, wherein, the inner of described filter screen (5) extends axially and is arranged in the described MEDIA FLOW circulation passage (12) along the inner of described filtering hole (131), and described medium flows into described spool (2) through the inner sidewall of this filter screen (5).

3, Filtering ball valve according to claim 2, it is characterized in that: described pipeline (13) is oblique overhanging 45 degree that are along the bottom of described valve body (1), the end face of this pipeline (13) is towards the MEDIA FLOW Inbound of described valve body (1), and the axis of the axis of described pipeline (13) and described valve body (1) is positioned at same plane.

4, Filtering ball valve according to claim 3, it is characterized in that: described valve body (1) forms one and the suitable collar stop (14) of cross section of described filter screen (5) on the inwall of MEDIA FLOW circulation passage (12), offer groove (141) on this collar stop (14), the other end of described filter screen (5) is fastened on this groove (141) internal fixation.

5, Filtering ball valve according to claim 2, it is characterized in that: described pipeline (13) is equipped with a connecting sleeve (6) at the port of filtering hole (131), the other end opening of this connecting sleeve (6) also seals with an end cap (7), and, also be provided with seal ring (61) between the port of described connecting sleeve (6) and filtering hole (131).

6, according to the described Filtering ball valve of arbitrary claim in the claim 1～5, it is characterized in that: described straight hole (151) has two and vertically offer along the top or the both sides of described valve body (1) outer wall at least, and each described straight hole (151) is equipped with obstruction.