CN217633927U - Electric dynamic flow regulating valve - Google Patents

Abstract

The utility model discloses an electrodynamic type developments flow control valve, including valve body and valve gap, install electric actuator on the valve gap, be equipped with the valve rod in the valve gap, be equipped with medium import chamber and medium outlet chamber on the valve body, be equipped with the case in the valve body, be connected with the elastic component between case and the valve rod, be equipped with the disk seat in the valve body, the below of case still is equipped with overflows a section of thick bamboo, overflows a section of thick bamboo and case lower extreme and has the passageway that communicates with medium import chamber, has the opening that communicates with medium outlet chamber on the disk seat, overflows and has seted up on the section of thick bamboo and overflow the passageway, the outer wall of case and the inner wall laminating of disk seat, the case reciprocates to make and overflow passageway and opening intercommunication or disconnection. In this way, the utility model discloses electrodynamic type developments flow control valve can carry out whole regulation and control to the valve flow through electric actuator, and under a certain specific operating mode, the case can carry out self-adaptation developments fine setting according to the pressure differential at import and export both ends, ensures that the governing valve is in pressure relatively stable's operating condition.

Description

Electric dynamic flow regulating valve

Technical Field

The utility model relates to a valve field especially relates to an electrodynamic type developments flow control valve.

Background

In a variable flow water system of a fluid transmission and distribution strange-course pipe network, only resistance calculation of a most unfavorable loop is usually considered during actual design, and when the qualification pressure head of the most unfavorable node of the system is ensured, the action pressure heads of other nodes are possibly far larger than the design value, so that the pressure of the system is disordered. The excessive or improper model selection of the fluid pump can also cause the operation flow to deviate from the designed value, and the unbalanced pressure of the pipe network results in the large waste of energy, the increase of operation noise and the shortening of the service life of equipment.

The regulating valve applied at the tail end of the existing fluid transmission and distribution pipe network generally does not have the function of dynamically balancing and regulating the flow of fluid flowing through the valve. If the inlet end flow is always higher than the outlet end in a certain period of time, the pressure at the inlet end is increased, and the valve body and even the electric actuator can be damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an electrodynamic type developments flow control valve, can carry out whole regulation and control to the valve flow through electric actuator, under a certain specific operating mode, the case can carry out self-adaptation developments fine setting according to the pressure differential at import and export both ends, ensures that the governing valve is in pressure relatively stable's operating condition.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an electrodynamic type dynamic flow governing valve, includes valve body and valve gap, install electric actuator on the valve gap, be equipped with the valve rod of being connected with electric actuator in the valve gap, be equipped with medium import chamber and medium export chamber on the valve body, be equipped with the case in the valve body, be connected with the elastic component between case and the valve rod, be equipped with the disk seat in the valve body, the below of case still is equipped with overflows a section of thick bamboo, it has the passageway with medium import chamber intercommunication to overflow a section of thick bamboo and case lower extreme, the opening that communicates with medium export chamber has on the disk seat, it has seted up on the section of thick bamboo and has overflowed the passageway to overflow, the outer wall of case and the inner wall laminating of disk seat, the case reciprocates and makes and overflows passageway and opening intercommunication or disconnection, thereby pressure variation in the medium enters the oral cavity impels the case to drive and overflows the section of thick bamboo and reciprocate the regulation and overflow the flow size between the section of thick bamboo and the opening.

In a preferred embodiment of the present invention, the flow passage is a plurality of flow grooves or a plurality of flow through holes or a plurality of flow grooves and a combination of flow through holes.

In a preferred embodiment of the present invention, the flow passage includes vertical flow grooves which are evenly provided along the axial direction of the outer wall of the flow passage barrel, a gap is provided between the flow grooves and the inner wall of the valve seat, and the medium inlet chamber is communicated with the opening through the vertical flow grooves by moving upward through the flow.

In a preferred embodiment of the present invention, the width of the overflow groove gradually increases from top to bottom.

In a preferred embodiment of the present invention, the flow passage includes a plurality of flow through holes radially formed therein, and the flow through holes are uniformly spaced in a vertical direction.

In a preferred embodiment of the present invention, the inner diameter of the through hole increases from top to bottom.

In a preferred embodiment of the present invention, the space above the valve body, valve seat and valve core forms a sealed chamber, and the air pressure in the chamber is equal to the air pressure.

In a preferred embodiment of the present invention, the elastic member is a disc spring.

The beneficial effects of the utility model are that: the utility model discloses electrodynamic type developments flow control valve adjusts through electric actuator and drives the valve rod regulation case and overflows a section of thick bamboo position in vertical side, realizes the flow between medium import chamber to the medium export chamber through overflowing the clearance between a section of thick bamboo and the disk seat opening, according to the pressure differential between medium import chamber and the medium export chamber, through the elastic component promote the case and overflow a section of thick bamboo displacement fine setting in vertical side, realize the opening and overflow the flow control between the section of thick bamboo to dynamic flow fine setting function has.

The utility model discloses electrodynamic type dynamic flow governing valve overflows the overflow groove on the section of thick bamboo or overflows the through-hole or the combination between them and realize the function that dynamic flow finely tuned, and it is big more to overflow the intercommunication area between a section of thick bamboo and the opening, and the flow is big more, makes highly compressed medium import chamber can flow into medium export chamber with the medium rapidly, when medium import chamber and medium export chamber pressure are close, overflows a section of thick bamboo and resets to get back to stable operating condition.

The utility model discloses electrodynamic type dynamic flow control valve, the sealed cavity is constituteed in the space of the upper end of valve body, disk seat and case, and the similar piston of function of case to sealed cavity is as pressure protection, avoids medium import chamber pressure too big and destroys the governing valve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural view of a preferred embodiment of the electric dynamic flow control valve of the present invention;

FIG. 2 is a top view of the flow-through cartridge;

FIG. 3 is a cross-sectional view of a flow cartridge in another embodiment;

the parts in the drawings are numbered as follows: 1. the valve comprises a valve body, 11, a medium inlet cavity, 12, a medium outlet cavity, 13, a cavity, 2, a valve cover, 3, an electric actuator, 4, a valve rod, 5, a valve core, 51, a channel, 6, a disc spring, 7, a valve seat, 71, an opening, 8, a flow passage cylinder, 81, a flow passage groove, 82 and a flow passage hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Embodiment 1, please refer to fig. 1 and 2, an electric dynamic flow regulating valve includes a valve body 1 and a valve cover 2, an electric actuator 3 is installed on the valve cover 2, a valve rod 4 connected to the electric actuator 3 is installed in the valve cover 2, and a medium inlet cavity 11 and a medium outlet cavity 12 are installed on the valve body 1. The electric actuator 3 is a motor or other conventional linear motion mechanism.

A valve core 5 is arranged in the valve body 1, an elastic part is connected between the valve core and the valve rod 4, and the elastic part is a disc spring 6 or a spring and the like. A valve seat 7 is arranged in the valve body 1, and a flow passing cylinder 8 is arranged below the valve core 5. The lower ends of the flow-passing cylinder 8 and the valve core 5 have passages 51 communicating with the medium inlet chamber 11. The valve seat 7 has an opening 71 in communication with the media outlet chamber 12. The electric actuator 3 pushes the valve rod 4 to drive the valve core 5 and the flow passing cylinder 8 to move in the vertical direction, under the condition that the flow passing cylinder 8 and the opening 71 are partially aligned, the medium inlet cavity 11 is communicated with the medium outlet cavity 12 through the flow passing cylinder 8 and the opening 71, and at the moment, the regulating valve works at a set flow rate.

An overflowing channel is formed in the overflowing cylinder 8, the outer wall of the valve core 5 is attached to the inner wall of the valve seat 7, and the valve core 5 is used for sealing the opening 71. The valve core 5 moves up and down to connect or disconnect the overflowing channel with the opening 71, and the pressure change in the medium inlet cavity 11 pushes the valve core 5 to drive the overflowing cylinder 8 to move up and down so as to adjust the flow between the overflowing cylinder 8 and the opening 71.

The overflowing channel comprises vertical overflowing grooves 81 which are uniformly arranged along the axial direction of the outer wall of the overflowing barrel 8 at intervals, and gaps are reserved between the overflowing grooves and the inner wall of the valve seat 7. The medium inlet chamber 11 is brought into communication with the opening 71 through the vertical flow through groove 81 by the upward movement of the flow. The width of the overflow groove 81 gradually increases from top to bottom. The medium enters through the medium inlet chamber 11, and a part of the medium inlet chamber 11 is filled through the vertical overflow groove 81, enters the opening 71 along the overflow cylinder 8, and flows into the medium outlet chamber 12 from the opening 71. If the flow of the medium inlet cavity 11 is larger than the flow of the medium outlet cavity 12, the pressure of the medium inlet cavity 11 can be gradually increased, when the pressure of the medium inlet cavity 11 is increased, the medium can overcome the elastic force of the disc spring 6 to push the valve core 5 to move upwards, the overflowing cylinder 8 moves upwards synchronously, the opening degree between the overflowing groove 81 and the opening 71 is increased, the flow is increased simultaneously, at the moment, the pressures of the medium inlet cavity 11 and the medium outlet cavity 12 can be slowly balanced, the height of the valve core 5 is kept fixed after the pressure is balanced, the flow protection is stable, and the function of synchronously fine-adjusting the flow of the adjusting valve by increasing the inlet flow is realized. When the flow of the medium inlet cavity 11 is reduced, the valve core 5 is pushed by the elastic force of the spring to reset and continuously returns to the initial flow state, and the regulating valve has the function of synchronously controlling the output flow of the regulating valve through inlet flow change.

The space at the upper ends of the valve body 1, the valve seat 7 and the valve core 5 forms a sealed cavity 13, and the air pressure in the cavity 13 is equal to the air pressure. The valve core 5 functions like a piston, and avoids the situation that the pressure of the medium inlet cavity 11 is too high and the valve rod 4 directly pushes the electric actuator 3, so that the electric actuator 3 is damaged. The cavity 13 is designed as a protection cavity to avoid damage to the regulating valve.

In embodiment 2, referring to fig. 3, the flow passage includes a plurality of flow through holes 82 radially formed, and the flow through holes 82 are uniformly spaced in the vertical direction. The inside diameter of the through-flow hole 82 increases in order from top to bottom. The rest is the same as example 1. The flow-through holes 82 also perform the function of flow regulation, the more flow-through holes that communicate with the opening 71, the greater the flow.

In embodiment 3, the flow passage has a structure in which a plurality of flow passage through holes 82 and a plurality of vertical flow passages 81 are radially formed, and the shapes and the arrangements of the flow passage through holes 82 and the vertical flow passages 81 are the same as those in embodiments 1 and 2. The combined use is that the flow rate changes faster and the response is quicker.

Be different from prior art, the utility model discloses electrodynamic type developments flow control valve can carry out whole regulation and control to the valve flow through electric actuator, and under a certain specific operating mode, the case can carry out self-adaptation developments fine setting according to the pressure differential at import and export both ends, ensures that the governing valve is in pressure relatively stable's operating condition.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides an electrodynamic type dynamic flow governing valve, includes valve body and valve gap, install electric actuator on the valve gap, be equipped with the valve rod of being connected with electric actuator in the valve gap, be equipped with medium import chamber and medium export chamber on the valve body, a serial communication port, be equipped with the case in the valve body, be connected with the elastic component between case and the valve rod, be equipped with the disk seat in the valve body, the below of case still is equipped with overflows a section of thick bamboo, it has the passageway with medium import chamber intercommunication to overflow a section of thick bamboo and case lower extreme, the opening that communicates with medium export chamber has on the disk seat, it has seted up the passageway to overflow on the section of thick bamboo, the outer wall of case and the inner wall laminating of disk seat, the case reciprocates and makes and overflows passageway and opening intercommunication or disconnection, thereby pressure variation in the medium import chamber impels the case drive to overflow a section of thick bamboo and reciprocate the regulation and overflow the flow size between the section of thick bamboo and the opening.

2. The electrodynamic dynamic flow control valve of claim 1, wherein the flow passage is comprised of a plurality of flow slots or a plurality of flow through holes or a plurality of flow slots and flow through holes.

3. The electrodynamic dynamic flow control valve of claim 2, wherein the flow passage includes vertical flow passages spaced evenly along an axial direction of an outer wall of the flow passage barrel, a gap is provided between the flow passages and an inner wall of the valve seat, and the flow passage moves upward to communicate the medium inlet chamber with the opening through the vertical flow passages.

4. The electrically operated dynamic flow control valve of claim 3, wherein the width of the overflow groove increases gradually from top to bottom.

5. The electrically operated dynamic flow control valve of claim 2, wherein the flow passage includes a plurality of radially disposed flow passage holes, the flow passage holes being vertically spaced apart.

6. The electric dynamic flow control valve according to claim 5, wherein the inner diameter of the through-flow hole increases in the order from top to bottom.

7. The electrically operated dynamic flow control valve according to any one of claims 1 to 6, wherein the space above the valve body, the valve seat and the valve core forms a sealed chamber, and the air pressure in the chamber is equal to the air pressure.

8. The electrically operated dynamic flow control valve of claim 7, wherein the resilient member is a disc spring.

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