CN208719367U

CN208719367U - A kind of electric control valve preventing flash distillation

Info

Publication number: CN208719367U
Application number: CN201821219512.7U
Authority: CN
Inventors: 丁泽林
Original assignee: Zhejiang Tang Zhen Control Valve Co Ltd
Current assignee: Zhejiang Tang Zhen Control Valve Co Ltd
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2019-04-09
Anticipated expiration: 2028-07-31

Abstract

The utility model relates to electric control valve technical fields, and disclose a kind of electric control valve for preventing flash distillation, including valve body, the top of the valve body is flexibly connected with the bottom of valve deck, and the side screw thread at the top of valve deck is socketed with bolt, one end of the bolt and the screw top of valve body connect, the top fixing sleeve of the valve deck is connected to hollow stem, and the bottom end of hollow stem extends to the inner cavity of valve body, the bottom end movable sleeve of the hollow stem is connected to valve rod, and the bottom end of valve rod is fixedly installed with sealing ring, the side of the sealing ring bottom is fixedly installed with filter core.This prevents the electric control valve of flash distillation, pass through the cooperation of sealing ring, filter core and link block, pressure difference convenient for preferably passing through water flow in regulating valve reduces, so that the phenomenon that flash distillation, is not in, it will lead to the appearance of obstruction stream to solve flash distillation, it will lead to the problem of safety accident occurs when serious, improve the safety of regulating valve.

Description

A kind of electric control valve preventing flash distillation

Technical field

The utility model relates to electric control valve technical field, specially a kind of electric control valve for preventing flash distillation.

Background technique

Electric control valve is the important execution unit instrument in industrial automation process control, automatic with industrial circle Change degree is higher and higher, is just more and more applied in various field of industrial production, when current most electric control valve Pressure difference in Chang Yinwei valve is larger and causes partially liq there is a phenomenon where flashing, and flash distillation is it is possible that obstruction flows, seriously When even can cause safety accident, while the connection relationship between the control-rod and valve rod of motor-operated control valve easily loosens mostly, makes Will lead to valve rod under prolonged control and cannot be moved with the movement of control-rod so that cannot effective control valve Problem.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of electric control valve for preventing flash distillation, and having prevents The advantages that appearance of flass, the long service life of regulating valve, solves current most electric control valve often because of valve Pressure difference in door is larger and causes partially liq there is a phenomenon where flashing, and flash distillation is it is possible that obstruction stream, even meeting when serious Cause safety accident, while the connection relationship between the control-rod and valve rod of motor-operated control valve easily loosens mostly, so that when long Between control under will lead to valve rod and cannot be moved with the movement of control-rod so that cannot effective control valve the problem of.

(2) technical solution

To realize the above-mentioned appearance for preventing flass, the purpose with long service life of regulating valve, the utility model is provided Following technical solution: a kind of electric control valve preventing flash distillation, including valve body, the top of the valve body and the bottom activity of valve deck Connection, and the side screw thread at the top of valve deck is socketed with bolt, one end of the bolt and the screw top of valve body connect, the valve The top fixing sleeve of lid is connected to hollow stem, and the bottom end of hollow stem extends to the inner cavity of valve body, the bottom end activity of the hollow stem It is socketed with valve rod, and the bottom end of valve rod is fixedly installed with sealing ring, the side of the sealing ring bottom is fixedly installed with filter core, institute The bottom for stating filter core is fixedly connected with the side at the top of link block, the fixed company in the bottom of the hollow stem inner cavity and the bottom end of spring It connects, the side of the hollow stem is fixedly installed with U-shaped frame, and the side fixing sleeve of U-shaped frame is connected to electric controller, described electronic The other side movable sleeve of controller is connected to control-rod, and one end of the control-rod is through to the inner cavity of hollow stem and fixes with valve rod It is socketed, fixing sleeve is connected to the cutting ferrule at the top of control-rod on the valve rod, is fixedly installed at the top of the hollow stem hollow Case, and the top of valve rod extends to the inner cavity of hollow box and is fixedly installed with fixed block, the bottom of the fixed block and hollow box The bottom of inner cavity is sequentially connected by the pressure spring being located on valve rod, and the side of the hollow box offers sliding slot, the fixed block Side be fixedly installed with sliding block, and one end of sliding block extends to the inside of sliding slot.

Preferably, the quantity of the filter core and link block is three, and the middle part of three link blocks offers connection Hole.

Preferably, the initial length value of the pressure spring is equal with the groove width of sliding slot.

Preferably, the quantity of the bolt is two, and two bolts are located at the two sides of hollow stem, the bolt Top is semicircular arc, and the top of bolt is equipped with form friction pattern.

Preferably, the quantity of the cutting ferrule is two, and two cutting ferrules are located at the top and bottom of control-rod, two Spacing between the cutting ferrule is adapted with the height value of control-rod.

Preferably, the diameter value in the body cavity hole is adapted with the diameter value of link block, and the diameter value of sealing ring It is 4/5ths of valve body inner bore diameter value.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of electric control valve for preventing flash distillation, has following beneficial Effect:

1, electric control valve for preventing flash distillation, by the cooperation of sealing ring, filter core and link block, convenient for will preferably adjust Saving the pressure difference that water flow is passed through in valve reduces, so that the phenomenon that flash distillation is not in, so that solving flash distillation will lead to obstruction stream Occur, will lead to the problem of safety accident occurs when serious, improve the safety of regulating valve.

2, electric control valve for preventing flash distillation, by the cooperation of valve rod, control-rod and cutting ferrule, convenient for preferably by valve rod Relationship between control-rod is more stable to link together, thus solve the connectivity difference between valve rod and control-rod and The problem of leading to the service life of regulating valve reduces, improves the service life of regulating valve.

Detailed description of the invention

Fig. 1 is the utility model structure front schematic view；

Fig. 2 is the utility model structure electric controller schematic diagram.

In figure: 1, valve body；2, valve deck；3, bolt；4, hollow stem；5, valve rod；6, sealing ring；7, filter core；8, link block；9, Spring；10, U-shaped frame；11, electric controller；12, control-rod；13, cutting ferrule；14, hollow box；15, fixed block；16, pressure spring；17, Sliding slot；18, sliding block.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of electric control valve preventing flash distillation referring to FIG. 1-2, including valve body 1, the diameter value of 1 lumen orifice of valve body with The diameter value of link block 8 is adapted, and the diameter value of sealing ring 6 is 4/5ths of 1 diameter of bore value of valve body, passes through sealing ring 6 diameter value is 4/5ths of 1 diameter of bore value of valve body, can be effectively by water flow when closing regulating valve to realize To obstruction, avoiding still has the problem of water flow passes through when again closing valve, improves the leakproofness of valve, the top of valve body 1 Portion is flexibly connected with the bottom of valve deck 2, and the side screw thread at 2 top of valve deck is socketed with bolt 3, and the quantity of bolt 3 is two, and Two bolts 3 are located at the two sides of hollow stem 4, and the top of bolt 3 is semicircular arc, and the top of bolt 3 is equipped with form friction pattern, It is equipped with antifriction line by the top of bolt 3, to realize more convenient in rotating bolt 3, is avoided in rotation spiral shell It also needs bolt 3 could be backed out using to tool when bolt 3, the relatively complicated problem of process, when improving rotating bolt 3 One end of convenience, bolt 3 is connect with the screw top of valve body 1, and the top fixing sleeve of valve deck 2 is connected to hollow stem 4, and hollow stem 4 bottom end extends to the inner cavity of valve body 1, and the bottom end movable sleeve of hollow stem 4 is connected to valve rod 5, and the bottom end of valve rod 5 is fixedly installed with Sealing ring 6, the side of 6 bottom of sealing ring are fixedly installed with filter core 7, and filter core 7 and the quantity of link block 8 are three, and three The middle part of link block 8 offers intercommunicating pore, intercommunicating pore is offered by the middle part of three link blocks 8, to realize energy Flow into water flow in next water pipe by intercommunicating pore, avoid pressure difference it is larger and the problem of phenomena such as cause solution to flash, The resiliency of pressure in valve is improved, the bottom of filter core 7 is fixedly connected with the side at 8 top of link block, 4 inner cavity of hollow stem Bottom is fixedly connected with the bottom end of spring 9, and the side of hollow stem 4 is fixedly installed with U-shaped frame 10, and the side of U-shaped frame 10 is fixed It is socketed with electric controller 11, the other side movable sleeve of electric controller 11 is connected to control-rod 12, and one end of control-rod 12 is run through To hollow stem 4 inner cavity and be fixedly attached with valve rod 5, fixing sleeve is connected to the cutting ferrule 13 positioned at the top of control-rod 12 on valve rod 5, card The quantity of set 13 is two, and two cutting ferrules 13 are located at the top and bottom of control-rod 12, between two cutting ferrules 13 between Away from being adapted with the height value of control-rod 12, it is adapted by the spacing between two cutting ferrules 13 with the height value of control-rod 12, Effectively control-rod 12 is fixed on valve rod 5 to realizing, avoid control-rod 12 fall off from the middle part of valve rod 5 and can not The adjusting to valve is automatically controlled, the connectivity between control-rod 12 and valve rod 5 is improved, the top of hollow stem 4 is fixedly mounted There is hollow box 14, and the top of valve rod 5 extends to the inner cavity of hollow box 14 and is fixedly installed with fixed block 15, the bottom of fixed block 15 The bottom of portion and 14 inner cavity of hollow box is sequentially connected by the pressure spring 16 being located on valve rod 5, the initial length value and cunning of pressure spring 16 The groove width of slot 17 is equal, equal with the groove width of sliding slot 17 by the initial length value of pressure spring 16, to realize in fixed block 15 Sliding block 18 also can avoid sliding block 18 and be stuck in the inside of sliding slot 17 and the valve in regulating valve is caused to occur and then together when reset The problems such as failure, improves the connection relationship between sliding block 18 and sliding slot 17, and the side of hollow box 14 offers sliding slot 17, fixed The side of block 15 is fixedly installed with sliding block 18, and one end of sliding block 18 extends to the inside of sliding slot 17.

When work, bolt 3 is tightened first so that valve deck 2 is fixed on the top of valve body 1, then make the inside of valve body 1 Water flowing, the pressure then passed through according to water, electric controller 11 control control-rod 12, so that control-rod 12 controls about 5 valve rod Mobile, valve rod 5 is moved up and down with sealing ring 6, while being controlled water flow and being passed through the amount of valve body 1, and reducing the pressure of water flow, so that The phenomenon that flash distillation is not in.

In conclusion this prevents the electric control valve of flash distillation to be convenient for by the cooperation of sealing ring 6, filter core 7 and link block 8 The pressure difference that preferably water flow in regulating valve is passed through reduces, so that the phenomenon that flash distillation is not in, so that solving flash distillation can lead The appearance for causing obstruction stream will lead to the problem of safety accident occurs, improve the safety of regulating valve when serious；By valve rod 5, The cooperation of control-rod 12 and cutting ferrule 13, convenient for being preferably connected to the relationship between valve rod 5 and control-rod 12 is more stable Together, to solve the problems, such as the connectivity difference between valve rod 5 and control-rod 12 and the service life of regulating valve is caused to reduce, The service life for improving regulating valve solves current most electric control valve and leads often because the pressure difference in valve is larger Cause partially liq there is a phenomenon where flashing, flash distillation can even cause safety accident, while big it is possible that obstruction stream when serious Connection relationship between the control-rod 12 and valve rod 5 of more motor-operated control valves easily loosens, so that will lead under prolonged control Valve rod 5 cannot be moved with the movement of control-rod 12 so that cannot effective control valve the problem of.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of electric control valve for preventing flash distillation, including valve body (1), it is characterised in that: the top of the valve body (1) and valve deck (2) bottom is flexibly connected, and the side screw thread at the top of valve deck (2) is socketed with bolt (3), one end of the bolt (3) and valve The screw top of body (1) connects, and the top fixing sleeve of the valve deck (2) is connected to hollow stem (4), and the bottom end of hollow stem (4) is prolonged The inner cavity of valve body (1) is extended to, the bottom end movable sleeve of the hollow stem (4) is connected to valve rod (5), and the fixed peace in bottom end of valve rod (5) Equipped with sealing ring (6), the side of sealing ring (6) bottom is fixedly installed with filter core (7), the bottom of the filter core (7) and company It connects the side at the top of block (8) to be fixedly connected, the bottom of hollow stem (4) inner cavity is fixedly connected with the bottom end of spring (9), described The side of hollow stem (4) is fixedly installed with U-shaped frame (10), and the side fixing sleeve of U-shaped frame (10) is connected to electric controller (11), The other side movable sleeve of the electric controller (11) is connected to control-rod (12), and one end of the control-rod (12) is through to hollow The inner cavity of bar (4) is simultaneously fixedly attached with valve rod (5), and fixing sleeve is connected to the card at the top of control-rod (12) on the valve rod (5) It covers (13), is fixedly installed with hollow box (14) at the top of the hollow stem (4), and the top of valve rod (5) extends to hollow box (14) inner cavity is simultaneously fixedly installed with fixed block (15), and the bottom of the fixed block (15) and the bottom of hollow box (14) inner cavity are logical Pressure spring (16) transmission connection being located on valve rod (5) is crossed, the side of the hollow box (14) offers sliding slot (17), the fixation The side of block (15) is fixedly installed with sliding block (18), and one end of sliding block (18) extends to the inside of sliding slot (17).

2. a kind of electric control valve for preventing flash distillation according to claim 1, it is characterised in that: the filter core (7) and company The quantity for connecing block (8) is three, and the middle part of three link blocks (8) offers intercommunicating pore.

3. a kind of electric control valve for preventing flash distillation according to claim 1, it is characterised in that: at the beginning of the pressure spring (16) Beginning length value is equal with the groove width of sliding slot (17).

4. a kind of electric control valve for preventing flash distillation according to claim 1, it is characterised in that: the number of the bolt (3) Amount is two, and two bolts (3) are located at the two sides of hollow stem (4), and the top of the bolt (3) is semicircular arc, and The top of bolt (3) is equipped with form friction pattern.

5. a kind of electric control valve for preventing flash distillation according to claim 1, it is characterised in that: the number of the cutting ferrule (13) Amount is two, and two cutting ferrules (13) are located at the top and bottom of control-rod (12), between two cutting ferrules (13) Spacing is adapted with the height value of control-rod (12).

6. a kind of electric control valve for preventing flash distillation according to claim 1, it is characterised in that: valve body (1) inner cavity The diameter value in hole is adapted with the diameter value of link block (8), and the diameter value of sealing ring (6) is valve body (1) diameter of bore value 4/5ths.