CN201180792Y

CN201180792Y - Vertical balance valve

Info

Publication number: CN201180792Y
Application number: CNU2008200837162U
Authority: CN
Inventors: 卓旦春
Original assignee: ZHEJIANG WOERDA COPPER INDUSTRY Co Ltd
Current assignee: ZHEJIANG WOERDA COPPER INDUSTRY Co Ltd
Priority date: 2008-03-04
Filing date: 2008-03-04
Publication date: 2009-01-14
Anticipated expiration: 2018-03-04

Abstract

The utility model provides a vertical balancing valve, belonging to the technical field of valves, which solves the problems in the prior balancing valve of low regulation accuracy and narrow application range. The vertical balancing valve comprises a hand wheel, a valve body with a water inlet and a water outlet, as well as a valve spool and a valve stem that are arranged inside the valve body. One end of the valve stem is in threaded connection with the valve spool, the other end thereof passes through the valve body and is fixedly connected with the hand wheel, a test tube communicating with the valve body is respectively arranged at the water inlet and the water outlet of the valve body, a connector for sealing the test tube is arranged at the end of the test tube, a disc opening position indicator indicating the opening of the valve spool is fixed on the valve body, a positioning structure capable of preventing circumferential rotation of the valve spool is arranged on the valve spool, and a locking mechanism capable of locking the rotation of the hand wheel is arranged inside the hand wheel. The vertical balancing valve has the advantages of high regulation accuracy and wide application range.

Description

Vertical balance valve

Technical field

The utility model belongs to valve technology field, relates to a kind of equilibrium valve, particularly a kind of vertical balance valve.

Background technique

At present, in heat supply, heating and the air-conditioning system, often there is the problem of hydraulic misadjustment in the water pipe pipe network system, both when the actual motion of system, flow through each building building or the water flow and the designing requirement of end equipment be not inconsistent.For solving the problem of water conservancy imbalance, the designer adopts valve to realize hydraulic equilibrium.But because the aperture and the flow of common valve are fast katal, not flow indication makes the work complexity of adjustment loaded down with trivial details, is difficult to realize.

Should further improve these shortcomings, Chinese patent application number is 88203650 to disclose a kind of " equilibrium valve and intelligent instrument specially for same thereof ", this equilibrium valve is made up of valve body, valve seat, spool, valve rod and dismountable handwheel, be provided with the spool and the valve seat of straight line type modulating valve at the gate valve body middle part, spool is connected with the screw shaped valve rod with handwheel, on screw rod, be provided with valve opening position dictator and locking device, upstream and downstream at spool are provided with pressure-detecting device respectively on valve body, with flexible pipe pressure-detecting device are connected with intelligent instrument specially for same with differential pressure transducer.What this equilibrium valve adopted is that indicator of opening is set on valve rod, and indicator of opening also is a linear type, thereby makes the size of this equilibrium valve do longly, has influenced attractive in appearance.Secondly, this equilibrium valve is equipped with pressure-detecting device, therefore can only be used for single pressure test, data such as energy measurement temperature not, and using scope is narrow.

Summary of the invention

The purpose of this utility model is the above-mentioned problem that exists at existing vertical balance valve, and a kind of degree of regulation height, vertical balance valve that using scope is wide are provided.

The purpose of this utility model can realize by following technical proposal: a kind of vertical balance valve, comprise handwheel, valve body with water intake and water outlet, be arranged on spool and valve rod in the valve body, described valve rod one end and spool are by being threaded, the other end passes valve body and above-mentioned handwheel is connected, on the valve body at water intake and water outlet place, respectively be provided with the testing tube that is communicated with valve body, it is characterized in that, the port of described testing tube is provided with the joint of sealing test pipe, be fixed with the indicator of opening of the disc type of expression spool aperture on the described valve body, on above-mentioned spool, be provided with the position structure that can prevent that spool from circumferentially rotating, in handwheel, be provided with and lock the locking framework that handwheel rotates.

Spool of this vertical balance valve and valve rod all uprightly are provided with, rotate handwheel, the valve rod of fixedlying connected with handwheel is also along with handwheel rotates, because spool is to be threaded with valve rod one end, and spool can not circumferentially rotate spool by the location of position structure, therefore, when valve rod rotated, spool can be with the positive and reverse return of valve rod then is moved up and down.The aperture of spool reduces gradually when spool moves down, up to the conducting of blocking equilibrium valve; The aperture of spool increases gradually when spool moves up, and makes equilibrium valve be opened to maximum.Be fixed on the degree that the indicator of opening on the valve body will indicate spool to open,, reduced the volume of this equilibrium valve because indicator of opening is a disc type.On the testing tube on the valve body that water intake and water outlet go out, joint is set, can directly will be plugged in the valve body by the pressure test probe like this by joint.After the pressure difference of measuring, search the aperture that subsidiary pressure difference of product and spool aperture contrast table come regulating spool, make the hydraulic pressure in the pipeline keep balance, the handwheel locking is rotated to prevent handwheel regulating by locking framework.

In above-mentioned vertical balance valve, described indicator of opening comprises the number disc that is arranged on the handwheel and is fixed on the pointer that is used in reference to the registration code wheel reading on the valve body, this pointer be positioned at number disc directly over.

In above-mentioned vertical balance valve, described number disc is made up of master and bracket panel, described master axial restraint, on the shaft axis of master, be provided with a gear of fixing with master, above-mentioned bracket panel is arranged on the top of master and fixedlys connected with handwheel, fix a dial on the shaft axis of bracket panel, the edge of dial is provided with teeth of can handsetting gear rotating.

Turn over how many angles in readings signify one circle of bracket panel, and master is the number of turns that the expression bracket panel turns over.Because bracket panel is fixed on the handwheel, bracket panel whenever turns around, and dial also rotates a circle, rotates an angle and the teeth of dial can be stirred the gear on the master and drive master, and the pointer that is fixed on the valve body then can indicate reading.Just can regulate the aperture size that regulating spool is come in the position of master and bracket panel according to pressure difference and spool aperture contrast table.

In above-mentioned vertical balance valve, described position structure comprises that to be enclosed within valve rod outer and be fixed on bonnet on the valve body, and above-mentioned spool is plugged in the bonnet, and the face that bonnet and spool join is non-circular, and spool has the structure that matches with bonnet.Limit the circumferential rotation of spool by this structure.Non-circular can be polygonal, also can be oval, or have a plane.

In above-mentioned vertical balance valve, be provided with the position-limit mechanism of restriction spool stroke in described spool and the valve rod, described position-limit mechanism comprises adjustable lever and adjusting screw, this adjusting screw is by being threaded in the valve rod, when the distance of spool and adjusting screw reduces, above-mentioned adjustable lever one end withstands on the spool, and the other end withstands on the adjusting screw.Rotate adjusting screw and can regulate the adjusting screw position.When spool withstood on the adjustable lever, spool just is conditioned masthead firmly can't be continued to promote, and spool is opened to maximum.

In above-mentioned vertical balance valve, described locking framework comprises a bolt, and this bolt passes handwheel and extend in the valve rod and with valve rod and be connected with screw thread, and the hexagonal flanged surface of bolt withstands on the handwheel.After tighting a bolt, handwheel is fixed by the hexagonal flanged surface of bolt.

In above-mentioned vertical balance valve, described joint comprises the link of tubular, this link one end is plugged in the above-mentioned testing tube and with screw thread and is connected, and the other end is by the attachment cap that has been threaded, and has at the internal fixation of link to prevent the Sealing that leaks.This structure is convenient to be connected in the testing tube with test instrument.Generally testing needle is inserted from Sealing and reach in the testing tube.

In above-mentioned vertical balance valve, described valve body is provided with support, and the middle part of this support is fixed on the valve body, and the edge of support is used to support the handwheel under being in the lock state.After handwheel is fixed, support handwheel by support, handwheel is fixed easily.

In above-mentioned vertical balance valve, be provided with seal ring between described adjustable lever and the valve rod.Increase the sealing between adjustable lever and the valve rod.

Compared with prior art, this vertical balance valve has following advantage:

1, is fixed with the indicator of opening of the disc type of expression spool aperture on the valve body of this vertical balance valve, reduce the volume of equilibrium valve, the aperture size that can come regulating spool with the position of regulating master and bracket panel according to pressure difference and spool aperture contrast table simultaneously, the degree of regulation height has reduced energy consumption.

2, this vertical balance valve adopts the joint that is provided with the sealing test pipe at the port of testing tube, test instrument conveniently is connected in the testing tube, and can be suitable for instruments such as test pressure, temperature, and using scope is wide.

Description of drawings

Fig. 1 is the structural scheme of mechanism of this vertical balance valve.

Fig. 2 is the structural representation of the number disc of this vertical balance valve.

Among the figure, handwheel 1, valve body 2, water intake 21, water outlet 22, testing tube 23, sealing surface 24, spool 3, convex shoulder 31, valve rod 4, joint 5, link 51, attachment cap 52, Sealing 53, sealing gasket 6, bonnet 7, seal ring 8, filler 9, retainer ring 10, clamping nut 11, support 12, indicator of opening 13, number disc 14, master 14a, bracket panel 14b, pointer 15, gear 16, dial 17, teeth 17a, adjustable lever 18, adjusting screw 19, bolt 20.

Embodiment

Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.

As depicted in figs. 1 and 2, this vertical balance valve comprises handwheel 1, valve body 2, spool 3, valve rod 4, is used for fixing the position structure of handwheel 1 and the compositions such as locking framework of circumferential fixed spool 3, is used for regulating water pipe pipe network flow.

Specifically, the valve body 2 of this vertical balance valve has water intake 21 and water outlet 22, on the valve body 2 at water intake 21 and water outlet 22 places, respectively be provided with the testing tube 23 that is communicated with valve body 2, port at testing tube 23 is provided with joint 5, this joint 5 comprises the link 51 of tubular, these link 51 1 ends are plugged in the above-mentioned testing tube 23 and with screw thread and are connected, the other end is by the attachment cap 52 that has been threaded, be provided with in link and prevent the Sealing 53 that leaks, Sealing 53 is made by rubber material.This structure can be easily be inserted into the testing needle of test instrument and be connected in the testing tube 23 from Sealing 23.In valve body 2, be provided with a sealing surface 24, spool 3 erectly is arranged on sealing surface 24 places of valve body 2, this spool 3 is a strip shape body, inside has tapped hole, sidepiece at spool 3 is provided with convex shoulder 31, be with on the spool 2 between convex shoulder 31 and the sealing surface 24 sealing gasket 6, when spool 2 during near sealing surface 24 sealing gasket 6 withstand on and form sealing on the sealing surface 24.Valve rod 4 is cylindric, is plugged in the tapped hole of spool 3 and is connected with screw thread with spool 3 at valve rod 4 one ends, and the other end outer side surface of valve rod 4 has the plane, and this end passes valve body 2 and fixedlys connected with handwheel 1.The valve rod 4 outer bonnets 7 that are with, this bonnet 7 is connected by screw thread with valve body 2 and between bonnet 7 and valve body 2 seal ring 8 is set, also be provided with seal ring 8 between bonnet 7 and the valve rod 4, filler 9 is housed in the end of bonnet 7, and retainer ring 10 and clamping nut 11 are set in the end of bonnet 7.Be with a support 12 on clamping nut 11, the middle part of this support 12 is fixed on the clamping nut 11, and the edge of support 12 is used to support the handwheel 1 under being in the lock state.Between handwheel 1 and support 12, be provided with the disc type indicator of opening 13 of expression spool 3, spool 3 is provided with the position structure that can prevent that spool from circumferentially rotating, this position structure comprises bonnet 7, spool 3 is plugged in the bonnet 7, bonnet 7 is a Hexagon with the part that spool 3 joins, and spool 3 matches with bonnet 7.In spool 3 and valve rod 4, be provided with the position-limit mechanism of restriction spool 3 strokes, in handwheel 1, be provided with and lock the locking framework that handwheel rotates.

Indicator of opening 1 comprise be arranged on the handwheel 1 number disc 14 and be fixed on the pointer 15 of indicated number code-disc 14 readings on the valve body 2, this pointer 15 be positioned at number disc 14 directly over, number disc 14 is made up of master 14a and bracket panel 14b, master 14a axial restraint, on the shaft axis of master 14a, be provided with a gear 16 of fixing with master 14a, bracket panel 14b is arranged on the top of master 14a and fixedlys connected with handwheel 1, on bracket panel 14b shaft axis, fix a dial 17, the edge of dial 17 be provided with one can handsetting gear the 16 teeth 17a that rotate.Rotate handwheel 1,1 fixing bracket panel 14b also rotates with handwheel, and 14b whenever turns around when bracket panel, and dial 17 also rotates a circle, rotates an angle and the teeth 17a of dial 17 can stir the gear 16 on the master 14a and drive master 14a.

Position-limit mechanism comprises adjustable lever 18 and adjusting screw 19, and this adjusting screw 18 is by being threaded in the valve rod 4, and when the distance of spool 3 and adjusting screw 19 reduced, adjustable lever 19 1 ends withstood on the spool 3, and the other end withstands on the adjusting screw 18.Rotate adjusting screw 18 and can regulate adjusting screw 18 positions.When spool 3 withstood on the adjustable lever 19, spool 3 just was conditioned bar 19 and withstands and can't continue to promote, and spool 3 is opened to maximum.In order to increase the sealing between adjustable lever 18 and the valve rod 4, between adjustable lever 18 and valve rod 4, be provided with seal ring 8.

Locking framework comprises a bolt 20, and this bolt 20 passes that handwheel 1 extend in the valve rod 4 and is connected with screw thread with valve rod 4, and the hexagonal flanged surface of bolt 20 withstands on the handwheel 1.After tighting a bolt, handwheel 1 is fixed by the hexagonal flanged surface of bolt 20.

When this equilibrium valve does not carry out the pressure balance adjusting, tighten handwheel 1 bolt 20 fixing.During use, elder generation is connected to the pressure test instrument in the testing tube 23 and is connected with joint.After drawing differential pressure data, determine the size of the aperture of spool 3 to make the hydraulic pressure maintenance balance in the pipeline according to numerical value on subsidiary pressure difference of product and the spool aperture contrast table.During adjusting, rotate handwheel 1, the valve rod 4 of fixedlying connected with handwheel 1 is also along with handwheel 1 rotates, because spool 3 is to be threaded with valve rod 4 one ends, and spool 3 can not circumferentially rotate spool 3 by the location of position structure, therefore, when valve rod 4 rotated, spool 3 can move up and down with forward and reverse rotation of valve rod 4.The aperture of spool reduces gradually when spool 3 moves down, up to the conducting of blocking equilibrium valve; The aperture of spool increases gradually when spool 3 moves up, and makes equilibrium valve be opened to maximum.According to the numerical value of contrast table, rotate handwheel 1 and make the adjusting that just realizes spool aperture size on the corresponding position of rotation of master 14a and bracket panel 14b.After having regulated, nut 20 is tightened locking.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used terms such as handwheel 1, valve body 2, water intake 21, water outlet 22, testing tube 23, sealing surface 24, spool 3, convex shoulder 31, valve rod 4, joint 5, link 51, attachment cap 52, Sealing 53, sealing gasket 6, bonnet 7, seal ring 8, filler 9, retainer ring 10, clamping nut 11, support 12, indicator of opening 13, number disc 14, master 14a, bracket panel 14b, pointer 15, gear 16, teeth 17a, adjustable lever 18, adjusting screw 19, bolt 20 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1, a kind of vertical balance valve, comprise handwheel (1), valve body (2) with water intake (21) and water outlet (22), be arranged on spool (3) and valve rod (4) in the valve body (2), described valve rod (4) one ends and spool (3) are by being threaded, the other end passes valve body (2) and is connected with above-mentioned handwheel (1), on the valve body (2) that water intake (21) and water outlet (22) are located, respectively be provided with the testing tube (23) that is communicated with valve body (2), it is characterized in that, the port of described testing tube (23) is provided with the joint (5) of sealing test pipe (23), be fixed with the indicator of opening (13) of the disc type of expression spool (3) aperture on the described valve body (2), on above-mentioned spool (3), be provided with the position structure that can prevent that spool (3) from circumferentially rotating, in handwheel (1), be provided with and lock the locking framework that handwheel (1) rotates.

2, vertical balance valve according to claim 1, it is characterized in that, described indicator of opening (13) comprises the number disc (14) that is arranged on the handwheel (1) and is fixed on the pointer (15) that is used in reference to registration code-disc (14) reading on the valve body (2), this pointer (15) be positioned at number disc (14) directly over.

3, vertical balance valve according to claim 2, it is characterized in that, described number disc (14) is made up of master (14a) and bracket panel (14b), described master (14a) axial restraint, on the shaft axis of master (14a), be provided with one with the fixing gear (16) of master (14a), above-mentioned bracket panel (14b) is arranged on the top of master (14a) and fixedlys connected with handwheel (1), fix a dial (17) on the shaft axis of bracket panel (14b), the edge of dial (17) is provided with teeth (17a) of can handsetting gear (16) rotating.

4, according to claim 1 or 2 or 3 described vertical balance valves, it is characterized in that, described position structure comprises that to be enclosed within valve rod (4) outer and be fixed on bonnet (7) on the valve body (2), above-mentioned spool (3) is plugged in the bonnet (7), bonnet (7) is non-circular with the face that spool (3) joins, and spool (3) has the structure that matches with bonnet (7).

5, according to claim 1 or 2 or 3 described vertical balance valves, it is characterized in that, be provided with the position-limit mechanism of restriction spool (3) stroke in described spool (3) and the valve rod (4), described position-limit mechanism comprises adjustable lever (18) and adjusting screw (19), this adjusting screw (19) is by being threaded in the valve rod (4), when the distance of spool (3) and adjusting screw (19) reduced, above-mentioned adjustable lever (18) one ends withstood on the spool (3), and the other end withstands on the adjusting screw (19).

6, according to claim 1 or 2 or 3 described vertical balance valves, it is characterized in that, described locking framework comprises a bolt (20), this bolt (20) passes handwheel (1) and extend in the valve rod (4) and with valve rod (4) and be connected with screw thread, and the hexagonal flanged surface of bolt (20) withstands on the handwheel (1).

7, according to claim 1 or 2 or 3 described vertical balance valves, it is characterized in that, described joint (5) comprises the link (51) of tubular, these link (51) one ends are plugged in the above-mentioned testing tube (23) and with screw thread and are connected, the other end is by the attachment cap that has been threaded (52), has at the internal fixation of link (51) to prevent the Sealing (53) that leaks.

8, vertical balance valve according to claim 6 is characterized in that, described valve body (2) is provided with support (12), and the middle part of this support (12) is fixed on the valve body (2), and the edge of support (12) is used to support the handwheel (1) under being in the lock state.

9, vertical balance valve according to claim 8 is characterized in that, is provided with seal ring (8) between described adjustable lever (18) and the valve rod (4).