CN201057280Y

CN201057280Y - Temperature-measuring balance valve

Info

Publication number: CN201057280Y
Application number: CNU2007201103354U
Authority: CN
Inventors: 林爱青
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-07
Filing date: 2007-06-07
Publication date: 2008-05-07
Anticipated expiration: 2017-06-07

Abstract

The utility model discloses a temperature measuring balance valve that belongs to technical field of valves on fluid pipes. The temperature measuring balance valve solves the problems of difficult cleaning, inconvenient adjustment and operation existing in the current temperature measuring balance valves. The temperature measuring balance comprises a hollow valve body, a valve stem and a valve core positioned in the hollow valve body, a filtration device and a testing mouth which are positioned the hollow valve body and communicated with the interior of the hollow valve body. The hollow valve body has an outlet and an inlet. The utility model is characterized in that: the filtration device is between the outlet and the valve core; a locking device that prevents the valve stem from rotating is arranged between the valve stem and the hollow valve body; the position on the hollow valve body where the filtration is arranged ensures that the impurities accumulated between the valve core and the hollow valve body do not easily enter the downstream of pipe with the fluid but are intercepted by the filtration to guarantee the safety of operation of the downstream equipment, moreover, when the temperature measuring balance valve is shut, the filtration device is backwashed more conveniently.

Description

The thermometric equilibrium valve

Technical field

The utility model belongs to the valve technology field on the fluid circuit, particularly a kind of thermometric equilibrium valve.

Background technique

On the pipeline of fluid, generally all need to be provided with various types of valves, with the flow of fluid in the pilot line, and some physical parameters of monitoring fluid.These valves are connected in needs bigger installation dimension in the pipeline, it is loaded down with trivial details also to seem when join operation.

Disclose a kind of locking among the Chinese patent 02205314.X, filtered modulating valve, the structure of this valve comprises valve body, spool, valve rod, valve body hollow also has entrance point and outlet end, be provided with the filtrating equipment that communicates with valve inner on valve body, filtrating equipment is between the entrance point and spool of fluid.Be provided with adjustable lever between above-mentioned spool and the valve rod, block is arranged on the adjustable lever, the deflection angle of regulating this block can lock the rotation angle of valve rod, and then reaches the purpose of fluid flow in the locking pipeline.

Though multinomial function that this valve is integrated, but in the use of reality, also has certain defective, because filtrating equipment is between the entrance point and spool of valve body, though this filtrating equipment can the filtering fluid in most impurity, still contain a spot of fine impurity in the fluid after filtering.Fluid is when the gap location of flowing through between spool and the valve body, path herein is not very smooth and easy, these fine impurity can be built up herein, and when the flow of regulated fluid, spool is to move, when spool moved, the impurity that accumulates in together might come off and along with fluid enters the downstream of pipeline, this safe operation to upstream device has brought hidden danger with bulk form.And this filtrating equipment is also not convenient to carry out backwash with fluid, has increased the difficulty that filtrating equipment cleans.In addition, the adjustable lever in this valve being regulated when reaching control fluid flow purpose,, need to use special tool adjusted, and regulate troublesome poeration because adjustable lever is positioned at the inside of valve body.

Summary of the invention

The purpose of this utility model is at existing the problems referred to above of multi-functional fluid valve in the existing pipeline, and a kind of simple in structure, thermometric equilibrium valve that can effectively guarantee the equipment safety operation on the pipeline of downstream is provided.

Another purpose of the present utility model is: a kind of thermometric equilibrium valve of being convenient to regulate fluid flow in the pipeline is provided.

The purpose of this utility model can realize by following technical proposal: a kind of thermometric equilibrium valve, comprise hollow valve body, be located at valve rod and spool in the valve body, be located at filtrating equipment that communicates with valve inner and test nipple on the valve body, described valve body has outlet end and entrance point, it is characterized in that, described filtrating equipment is provided with the locking device that prevents that valve rod from rotating between described valve rod and the valve body between the outlet end and spool of valve body.

In above-mentioned thermometric equilibrium valve, spool directly is connected on the inner of valve rod.Can place the device that is used to measure fluid temperature (F.T.) in the test nipple, or in test nipple, place the device that is used to measure fluid flow.Fluid enters behind the gap of flowing through between spool and the valve body and has been in the filter device, flow into the downstream of pipeline through the fluid after filtering.

In this thermometric equilibrium valve, described test nipple is two, and they lay respectively at the entrance point and the outlet end place of valve body.In these two test nipples, can put into a device of measuring fluid flow respectively,, be convenient to measure exactly the flow of fluid in the pipeline like this because two test nipple branches are listed in the both sides of spool.

In this thermometric equilibrium valve, described filtrating equipment comprises filter screen cylindraceous, and this filter screen is connected on the valve body by a bonnet that can communicate with the external world, is provided with plug in the outer end of bonnet.Behind the plug and cut-off valve in unloading filtrating equipment, can utilize fluid that filter screen is carried out backwash, the dirt that obtains after the backwash can be discharged at the bonnet place.

In this thermometric equilibrium valve, in being provided with, described bonnet outer end madial wall, on this retaining edge, is formed with the temperature measuring hole that is used for the laying temperature sensor to the retaining edge.Retaining along with bonnet be generally one-body molded, but retaining along on laying temperature sensor in the temperature measuring hole that forms, can measure the temperature of fluid in the pipeline after this temperature transducer and temperature measuring equipment link together.

For the ease of the flow of fluid in the pipeline is controlled, in this thermometric equilibrium valve, described locking device is a columniform lockset, the outside of valve body is stretched out in one end of described valve rod, lockset is connected on the valve body and is connected with the external part of valve rod, on the outer circumferential face of this lockset, can be socketed with a circumferential with it relatively-stationary ring-type key, can slide to axial between key and the lockset.When key, lockset is followed together and is rotated, thereby the aperture between may command spool and the valve body reaches the purpose of controlling fluid flow.Lockset generally should be convenient to the personnel that manage the flow of fluid in the pipeline is controlled not exceeding by free-hand rotation lockset like this with the rotation soundness between the valve body.

In this thermometric equilibrium valve, be provided with the magnetic connecting structure between described key and the lockset.This magnetic connecting structure generally is to be made of a plurality of corresponding little magnetic patch of being located at respectively on key and the lockset, between lockset and the little magnetic patch on it, spring need be set toward contact, under the effect of this spring force, little magnetic patch limits the circumferential rotation between lockset and the valve body, when key cover is connected on the lockset, utilize the magnetic force between the corresponding little magnetic patch and realize circumferentially fixedlying connected between key and the lockset, and little magnetic patch is removed the qualification that lockset is circumferentially rotated simultaneously, and after extracting key, little magnetic patch on the lockset resets under the effect of spring force, little magnetic patch is connected between lockset and the valve body, and lockset can not be rotated with respect to valve body easily.

In this thermometric equilibrium valve, be evenly equipped with the convex body of several protrusions on the outer circumferential face of described ring-type key.The convex body that is provided with has made things convenient for staff pulling key.

Compared with prior art, the beneficial effects of the utility model are:

1, the position of being located on the valve body owing to filtrating equipment is between valve outlet end and the spool, can be filtered device after some impurity of being assembled between spool and the valve body come off holds back, and can not enter into the downstream of pipeline, guaranteed the safe operation of pipeline upstream device effectively.

2, when utilizing fluid to carry out backwash to the filtrating equipment on this equilibrium valve, can utilize spool to close equilibrium valve, and utilize fluid that filtrating equipment is carried out back flush, do not need often to change the filter screen in the filtrating equipment, and the resulting dirt in flushing back can directly be derived from filtrating equipment, can not enter into pipeline.

3, owing to be provided with lockset in the end that valve rod stretches out valve body, when the flow in the pipeline is regulated or controlled, can utilize key to operate, operation is very easy, especially conveniently resembles department such as property management the pipeline fluid is carried out unified management.

Description of drawings

Fig. 1 is vertical partial sectional view of this thermometric equilibrium valve.

Wherein, 1, key; 2, lockset, 3, valve rod; 4, seal ring; 5, pressure cap; 6, spool; 7, valve body; 8, test nipple; 9, outlet end; 10, bonnet; 11, temperature measuring hole; 12, plug; 13, retaining edge; 14, filter screen; 15, entrance point; 16, convex body.

Embodiment

By among Fig. 1 as can be seen, the structure of this thermometric equilibrium valve comprises hollow valve body 7, spool 6, valve rod 3, filtrating equipment.Valve body 7 has entrance point 15 and outlet end 9, spool 6 and valve rod 3 are positioned at valve body 7, and spool 6 is connected in the place, the inner of valve rod 3, and the outside of valve body 7 is stretched out in the outer end of valve rod 3.

Described filtrating equipment communicates with the inside of valve body 7, and filtrating equipment is between the outlet end 9 and spool 6 of valve body 7, and structure comprises a filter screen 14 cylindraceous, and this filter screen 14 is located in the path of valve body 7 inside.Place, outer end in filter screen 14 on valve body 7 is provided with a bonnet 10 that can communicate with the external world, and this bonnet 10 is mainly used in fixedly filter screen 14.Establish a plug 12 in the outer end of bonnet 10, plug 12 is threaded on the bonnet 10.On the madial wall of the outer end of bonnet 10, also be provided with in one to keeping off along 13, retaining is provided with a temperature measuring hole 11 that communicates with valve body 7 inside along 13 center position, can the laying temperature sensor in temperature measuring hole 11, after linking together, this temperature transducer and temperature measuring equipment can measure the temperature of valve body 7 inner fluids.

Also be provided with two test nipples 8 that communicate with valve body 7 inside on valve body 7, these two test nipples 8 lay respectively at the outlet end 9 and entrance point 15 places of valve body 7.

Valve rod 3 is connected on the valve body 7 rotationally, and valve body 7 is a split-type structural, and it also comprises a pressure cap 5, and an end of valve rod 3 reaches the outside of pressure cap 5, is provided with multiple tracks and is used to seal ring 4 that both are sealed between valve rod 3 and pressure cap 5.Be fixed with a columniform lockset 2 on the external part of valve rod 3, lockset 2 can be connected on the pressure cap 5.Lockset 2 can be combined together with gap with a circular key 1, and is provided with the magnetic connecting structure between lockset 2 and the key 1.When key 1 is socketed on the lockset 2, circumferentially be connected between key 1 and the lockset 2, and remove clamping between lockset 2 and the pressure cap 5, promptly lockset 2 can drive valve rod 3 and follows key 1 and do rotation with respect to pressure cap 5 together, and then realizes the control to valve body 7 inner fluid flows.For convenience key 1 is operated, on the outer circumferential face of circular key 1, also be evenly equipped with the convex body 16 of several protrusions.

Claims

1. thermometric equilibrium valve, comprise hollow valve body (7), be located at valve rod (3) and spool (6) in the valve body (7), be located at the filtrating equipment and the test nipple (8) that communicate with valve body (7) inside on the valve body (7), described valve body (7) has outlet end (9) and entrance point (15), it is characterized in that, described filtrating equipment is positioned between the outlet end (9) and spool (6) of valve body (7), is provided with the locking device that prevents that valve rod (3) from rotating between described valve rod (3) and the valve body (7).

2. thermometric equilibrium valve according to claim 1 is characterized in that, described test nipple (8) is two, and they lay respectively at the entrance point (15) and the outlet end (9) of valve body (7) and locate.

3. thermometric equilibrium valve according to claim 1 and 2, it is characterized in that, described filtrating equipment comprises filter screen cylindraceous (14), and this filter screen (14) is connected on the valve body (7) by a bonnet (10) that can communicate with the external world, is provided with plug (12) in the outer end of bonnet (10).

4. thermometric equilibrium valve according to claim 3 is characterized in that, to retaining edge (13), is formed with the temperature measuring hole (11) that is used for the laying temperature sensor on this retaining edge (13) in described bonnet (10) outer end madial wall is provided with.

5. thermometric equilibrium valve according to claim 1 and 2, it is characterized in that, described locking device is a columniform lockset (2), the outside of valve body (7) is stretched out in one end of described valve rod (3), lockset (2) is connected in that valve body (7) is gone up and is connected with the external part of valve rod (3), on the outer circumferential face of this lockset (2), can be socketed with a circumferential with it relatively-stationary ring-type key (1), can slide to axial between key (1) and the lockset (2).

6. thermometric equilibrium valve according to claim 5 is characterized in that, is provided with the magnetic connecting structure between described key (1) and the lockset (2).

7. thermometric equilibrium valve according to claim 6 is characterized in that, is evenly equipped with the convex body (16) of several protrusions on the outer circumferential face of described ring-type key (1).