Electric ball valve with flow pressure adjusting function

Abstract

The utility model discloses an electric ball valve with a flow pressure regulating function, which relates to the field of electric ball valves and comprises a valve body, an electric actuator shell is mounted at the top of the valve body through a mounting support, an electric actuating mechanism inside the electric actuator shell is coaxially connected with an O-shaped ball valve through a valve rod, and the O-shaped ball valve is mounted on the valve body. The O-shaped ball valve is located in the valve body, a straight pipe is installed in the water inlet end of the valve body, a connecting pipe penetrating into the valve body is welded to the outer wall of the water inlet end of the valve body, the straight pipe and the connecting pipe are distributed in a T shape, an inner cavity of the straight pipe is communicated with an inner cavity of the connecting pipe, and the straight pipe is connected with the connecting pipe. The output end of the straight pipe is rotationally connected with an anti-reverse plate through a reset mechanism. According to the O-shaped ball valve, the straight pipe, the anti-reverse plate and the reset mechanism are arranged, so that in the adjusting process of the O-shaped ball valve, generated turbulent flow cannot directly act on the sensing end of the piezoelectric pressure sensor, and the purpose of more efficient adjustment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric ball valve field, concretely is a kind of electric ball valve with flow pressure regulating function. BACKGROUND

[0002] Electric ball valve is a kind of ball valve with electric actuator, and cooperate absolute encoder to realize the opening angle and direction of control ball valve, with the development of technology, wireless transmission mechanism can also be integrated on electric ball valve, to realize remote control purpose.

[0003] The existing electric ball valve is generally installed with pressure sensor in use, since there is inverse relationship between flow rate and pressure, when flow increases, flow rate usually increases, under the condition that other conditions are unchanged, pressure will reduce, in contrast, flow decreases, and pressure will rise, so through the feedback of pressure sensor, electric actuator can be controlled by controller, to realize flow regulating purpose;

[0004] But in the process of O-shaped ball valve rotation, turbulence phenomenon occurs, and the reaction force of turbulence phenomenon can cause pressure sensor to change rapidly in unit time, to cause that the adjustment process is not convenient enough. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the problem in the background art, provide a kind of electric ball valve with flow pressure regulating function.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of electric ball valve with flow pressure regulating function, including valve body, the top of the valve body is installed with electric actuator shell by mounting support, electric actuator shell inside electric actuator is coaxially connected with O-shaped ball valve by valve rod, the O-shaped ball valve is located in the inside of the valve body, the water inlet end inside the valve body is installed with straight pipe, the water inlet end outer wall of the valve body is welded with the connecting pipe that is penetrated to the inside of the valve body, the straight pipe and the connecting pipe are "T" letter shape distribution, the inner chamber of the straight pipe and the inner chamber of the connecting pipe are communicated, the output end of the straight pipe is rotationally connected with anti-reverse plate by reset mechanism.

[0007] As the further scheme of the utility model: one end of the connecting pipe is welded with connecting flange outside the valve body, the connecting flange is connected with mounting flange by bolt, piezoelectric pressure sensor is fixedly installed on the inner wall of the mounting flange, the sensing end of the piezoelectric pressure sensor is located in the inner chamber of the straight pipe, and the piezoelectric pressure sensor and the controller in the electric actuator shell are electrically connected by wire.

[0008] As a further scheme of the utility model: the reset mechanism further includes a connecting groove opened at the top end and the bottom end of the protruding part of the anti-reverse plate, a torsional spring is clamped between the inner wall of the connecting groove and the fixed seat, and the torsional spring is sleeved on both ends of the connecting shaft.

[0009] As a further scheme of the utility model: the reset mechanism further includes a connecting groove opened at the top end and the bottom end of the protruding part of the anti-reverse plate, a torsional spring is clamped between the inner wall of the connecting groove and the fixed seat, and the torsional spring is sleeved on both ends of the connecting shaft.

[0010] As a further scheme of the utility model: the reset mechanism further includes a connecting groove opened at the top end and the bottom end of the protruding part of the anti-reverse plate, a torsional spring is clamped between the inner wall of the connecting groove and the fixed seat, and the torsional spring is sleeved on both ends of the connecting shaft.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. By setting the straight pipe, the anti-reverse plate and the reset mechanism, the generated turbulent flow in the O-shaped ball valve adjusting process does not directly act on the sensing end of the piezoelectric pressure sensor, so that the purpose of more efficient adjustment is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is an internal structure schematic view of the utility model;

[0015] Figure 3 It is an installation schematic view of the anti-reverse baffle of the utility model;

[0016] Figure 4 It is an installation schematic view of the reset mechanism of the utility model.

[0017] In the drawing: 1, valve body; 2, mounting bracket; 3, electric actuator shell; 4, connecting pipe; 5, straight pipe; 6, piezoelectric pressure sensor; 7, mounting flange; 8, valve stem; 9, O-shaped ball valve; 10, anti-reverse plate; 11, fixed seat; 12, connecting groove; 13, connecting shaft; 14, torsional spring. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-4 In the embodiment of the utility model, a kind of electric ball valve with flow pressure regulating function, including valve body 1, the top of valve body 1 is equipped with electric actuator shell 3 by mounting support 2, and the electric actuator shell 3 inside electric actuator mechanism is coaxially connected with O type ball valve 9 by valve stem 8, and O type ball valve 9 is located inside valve body 1, and straight pipe 5 is installed in the water inlet end of valve body 1, and the outer wall of the water inlet end of valve body 1 is welded with connecting pipe 4 that is penetrated to the inside of valve body 1, and straight pipe 5 and connecting pipe 4 are distributed in the shape of '' T '' character, and the inner cavity of straight pipe 5 is communicated with the inner cavity of connecting pipe 4, and the output end of straight pipe 5 is rotatably connected with anti-reverse plate 10 by reset mechanism.

[0020] In the embodiment: in the operation process of electric ball valve, electric actuator mechanism (generally by worm gear, worm, micro motor is formed, and worm gear is installed on the outer wall of valve stem 8, and worm is engaged with worm gear, and micro motor is rotated by driving worm, and worm can drive wheel to rotate, that is, the driving of worm can be realized, and absolute encoder records rotation angle and rotation reverse and carries out feedback when worm rotates), realizes the rotation of O type ball valve 9, and realizes the regulation of flow size;

[0021] When fluid passes through the device, medium also flows in straight pipe 5, and flows out after anti-reverse plate 10 is opened.

[0022] Please refer to Figure 1 With Figure 2 One end of connecting pipe 4 located outside valve body 1 is welded with connecting flange, and connecting flange is connected with mounting flange 7 by bolt, and piezoelectric pressure sensor 6 is fixedly installed on the inner wall of mounting flange 7, and the sensing end of piezoelectric pressure sensor 6 is located in the inner cavity of straight pipe 5, and piezoelectric pressure sensor 6 and controller inside electric actuator shell 3 are electrically connected by wire.

[0023] In the embodiment: when fluid medium flows in straight pipe 5, the pressure of fluid acts on piezoelectric pressure sensor 6 at this time, when fluid flow rate is greater than preset highest flow rate, it indicates that the opening of O type ball valve 9 is smaller, at this time, piezoelectric pressure sensor 6 sends electric signal one to controller, and controller controls electric actuator mechanism to operate, adjusts the opening size of O type ball valve 9, until fluid pressure reaches preset range.

[0024] When fluid flow rate is less than preset minimum flow rate, it indicates that the opening of O type ball valve 9 is too large, at this time, piezoelectric pressure sensor 6 sends electric signal two to controller, and controller controls electric actuator mechanism to operate, adjusts the opening size of O type ball valve 9, until fluid pressure reaches preset range, to achieve the purpose of regulating flow size by fluid pressure.

[0025] Please pay attention to Figure 4 The reset mechanism comprises fixed seats 11 rotatably installed on the top and bottom ends of the protruding part of the anti-reverse plate 10, the other ends of the fixed seats 11 are welded to the outer wall of the water outlet end of the straight pipe 5, a connecting shaft 13 is fixedly installed between the two fixed seats 11, the connecting shaft 13 is rotatably connected with the protruding part of the anti-reverse plate 10, the reset mechanism further comprises connecting grooves 12 opened on the top and bottom ends of the protruding part of the anti-reverse plate 10, torsion springs 14 are clamped between the inner walls of the connecting grooves 12 and the fixed seats 11, the torsion springs 14 are sleeved on the two ends of the connecting shaft 13, clamping grooves are formed between the inner side surfaces of the fixed seats 11 and one end of the inner walls of the connecting grooves 12, and the clamping grooves are clamped with the end portions of the torsion springs 14.

[0026] In the embodiment, the fluid pushes the anti-reverse plate 10 upward when the fluid passes through the straight pipe 5 and is discharged, at this time, the anti-reverse plate 10 rotates, one end of the torsion spring 14 clamped with the anti-reverse plate 10 is twisted, and the other end of the torsion spring 14 clamped with the fixed seat 11 remains stationary, in the process of rotating adjustment of the O-shaped ball valve 9, turbulence is generated, when the turbulence is generated, the action force of the turbulence causes the fluid flow rate in the straight pipe 5 to slow down or temporarily not flow outward, at this time, the force applied to the anti-reverse plate 10 disappears, at this time, the torsion spring 14 resets and drives the anti-reverse plate 10 to reset, so that the interference of the turbulence on the piezoelectric pressure sensor 6 is avoided, and the purpose of realizing a more stable adjustment process is achieved.

[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An electric ball valve with flow pressure regulating function, comprising a valve body (1), the top of the valve body (1) is provided with an electric actuator shell (3) through a mounting bracket (2), the electric actuator mechanism inside the electric actuator shell (3) is coaxially connected with an O-shaped ball valve (9) through a valve stem (8), and the O-shaped ball valve (9) is located inside the valve body (1), characterized in that, The water inlet end of the valve body (1) is internally provided with a straight pipe (5), and the outer wall of the water inlet end of the valve body (1) is welded with a connecting pipe (4) penetrating into the inside of the valve body (1), the straight pipe (5) and the connecting pipe (4) are in "T" shape distribution, the inner cavity of the straight pipe (5) is communicated with the inner cavity of the connecting pipe (4), and the output end of the straight pipe (5) is rotationally connected with an anti-reverse plate (10) through a reset mechanism.

2. The electric ball valve having a flow pressure regulating function according to claim 1, wherein One end of the connecting pipe (4) located outside the valve body (1) is welded with a connecting flange, the connecting flange is connected with a mounting flange (7) through bolts, the inner wall of the mounting flange (7) is fixedly installed with a piezoelectric pressure sensor (6), the sensing end of the piezoelectric pressure sensor (6) is located in the inner cavity of the straight pipe (5), and the piezoelectric pressure sensor (6) is electrically connected with the controller in the electric actuator shell (3) through wires.

3. The electric ball valve with flow pressure regulating function according to claim 1, characterized in that, The reset mechanism comprises a fixed seat (11) rotationally installed at the top end and the bottom end of the protruding portion of the anti-reverse plate (10), the other end of the fixed seat (11) is welded to the outer wall of the water outlet end of the straight pipe (5), a connecting shaft (13) is fixedly installed between the two fixed seats (11), and the connecting shaft (13) is rotationally connected with the protruding portion of the anti-reverse plate (10).

4. The electric ball valve having a flow pressure regulating function according to claim 3, wherein The reset mechanism further comprises a connecting groove (12) opened at the top end and the bottom end of the protruding portion of the anti-reverse plate (10), a torsional spring (14) is clamped between the inner wall of the connecting groove (12) and the fixed seat (11), and the torsional spring (14) is sleeved on both ends of the connecting shaft (13).

5. The electric ball valve having a flow pressure regulating function according to claim 4, wherein The inner side surface of the fixed seat (11) and one end of the inner wall of the connecting groove (12) are both provided with a clamping groove, and the clamping groove is clamped with the end portion of the torsional spring (14).

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