CN113251158A

CN113251158A - But intelligent electric actuator of switch after outage

Info

Publication number: CN113251158A
Application number: CN202110552008.9A
Authority: CN
Inventors: 邵鹤龙
Original assignee: Anhui Zhongjie Automatic Control Equipment Co ltd
Current assignee: Anhui Zhongjie Automatic Control Equipment Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-08-13

Abstract

The invention discloses an intelligent electric actuator capable of being switched after power failure, which comprises a pipeline butt joint valve, a protective cover and a butt joint pipe, wherein the pipeline butt joint valve is connected with the protective cover through the butt joint pipe, a conducting cavity which is opened and closed by an opening and closing actuating mechanism is arranged between a liquid inlet end and a liquid outlet end of the pipeline butt joint valve, the opening and closing actuating mechanism comprises a sinking and floating bottle, a piston disc body arranged in the sinking and floating bottle, an extending rod piece connected with the bottom end of the sinking and floating bottle and a flow blocking plug arranged at the end part of the extending rod piece and used for sealing the conducting cavity, the sinking and floating bottle is provided with an elastic component for driving the sinking and floating bottle to reset, the outer edge of the extending rod piece is provided with a threaded part, the threaded part is meshed with a conical gear arranged in the butt joint pipe to realize manual adjustment, and the conical gear is provided with a shaft rod coaxial with the conical gear. The intelligent electric actuator capable of being switched after power failure can close the valve by resetting the spring after power failure, thereby realizing the safety protection of the field process flow and avoiding accidents.

Description

But intelligent electric actuator of switch after outage

Technical Field

The invention belongs to the technical field of electric actuators (H02K7/10), and particularly relates to an intelligent electric actuator capable of being switched on and off after power failure.

Background

Electric actuators, also called electric actuators, are defined most broadly as actuators: a drive device capable of providing linear or rotary motion utilizes a drive energy source and operates under a control signal. Actuators use liquid, gas, electricity or other energy sources and convert them into drive action by motors, cylinders or other means. The basic types of the three-phase driving device are a partial-Turn (Part-Turn), a Multi-Turn (Multi-Turn) and a straight stroke (Linear) driving mode.

For example, a digital intelligent type straight-stroke electric actuator with publication number "CN 109915642A" discloses an electric actuator capable of performing self-diagnosis and reducing maintenance frequency, but the electric actuator may encounter an emergency situation of power loss during working condition use, the motor has no power after power loss, and the actuator cannot open or close the valve, which easily affects the process flow.

Disclosure of Invention

The invention aims to provide an intelligent electric actuator capable of being opened and closed after power failure, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an intelligent electric actuator capable of being switched after power failure comprises a pipeline butt joint valve, a protective cover and a butt joint pipe, wherein the pipeline butt joint valve is connected with the protective cover through the butt joint pipe, one side of the pipeline butt joint valve is provided with a liquid inlet end, the other side of the pipeline butt joint valve is provided with a liquid outlet end, a group of conducting cavities which are opened and closed by an opening and closing executing mechanism are arranged between the liquid inlet end and the liquid outlet end, cavities which are communicated with each other are arranged in the protective cover and the butt joint pipe, the opening and closing executing mechanism is arranged in the cavities arranged in the protective cover and the butt joint pipe and comprises a sinking and floating bottle, a piston disc body arranged in the sinking and floating bottle, an extension rod piece connected with the bottom end of the sinking and floating bottle and a flow blocking plug arranged at the end of the extension rod piece for closing the conducting cavities, the sinking and floating bottle is provided with a group of elastic assemblies for driving the sinking and floating bottle to reset, the outer edge of the extension rod piece is provided with a thread part, the thread part is meshed with a group of conical gear arranged in the butt joint pipe to realize manual adjustment, the bevel gear is provided with a group of shaft levers which are coaxial with the bevel gear, the connecting positions of the end parts of the shaft levers and the butt joint pipes are provided with embedded bosses, and the embedded bosses are provided with slideways for the shaft levers to slide and adjust.

Preferably, the bottom end of the protective cover is provided with a group of wing plates I coated on the periphery of the protective cover, the top end of the butt joint pipe is provided with a group of wing plates II coated on the periphery of the butt joint pipe, and the wing plates I and the wing plates II are fastened through bolts.

Preferably, a group of sealing plugs sleeved on the periphery of the extension rod piece is arranged at the connecting position of the pipeline butt joint valve and the protective cover, and the sealing plugs are used for blocking liquid in the liquid inlet end and preventing the liquid from flowing into the butt joint pipe.

Preferably, the piston disc body comprises a piston disc arranged in the sinking and floating bottle and a group of connecting rods extending to the outside of the sinking and floating bottle, the top end of each connecting rod extends out of a protective cover and is fastened and limited by a group of limiting bolts, the piston disc of the piston disc body divides the space in the sinking and floating bottle into a first pressure cavity at the lower part and a second pressure cavity at the upper part, a pipeline with an electric control valve is arranged on one side of the piston disc, the pipeline is communicated with the first pressure cavity and the second pressure cavity, a pressure assembly is further arranged on the piston disc and adjusts the pressure difference value of the first pressure cavity and the second pressure cavity, and displacement of the sinking and floating.

Preferably, the outer fringe face upper portion of the aforesaid heavy bottle that floats is equipped with the spacing eaves of a set of spring that supplies the elastic component butt, and elastic component is reset spring, and the one end butt that the spacing eaves of spring was kept away from to above-mentioned reset spring is in the bottom of protection casing.

Preferably, the conducting cavity is formed into a pore channel adapted to the choke plug, and a group of filter screens is arranged above the conducting cavity.

Preferably, the bottom end of the choke plug is configured with a conical limiting portion, and the choke plug is internally provided with a plurality of pressure release channels, the pressure release channels are formed with channel inlets communicated to the outside above the choke plug, and the pressure release channels are formed with channel outlets communicated to the outside in the direction of the conical limiting portion.

Preferably, the pressure relief flow passages are L-shaped and are provided with a plurality of groups in an annular array around the extension rod.

Preferably, the embedding boss is provided with two groups of limiting lock catches of limiting shaft rods, the shaft rods are rotatably connected with the limiting lock catches, and the end parts of the shaft rods are provided with crank structures for driving the shaft rods.

The invention has the technical effects and advantages that: the intelligent electric actuator capable of being switched on and off after power failure has the advantages that due to the arrangement of the reset spring, when the equipment is powered off, the flow blocking plug is reset under the driving of the elastic force of the reset spring, and the spring is reset after the equipment is powered off, so that the valve can be closed, the safety protection of the field process flow is realized, and accidents are avoided; when the conical gear is limited by the upper limiting lock catch, the lifting of the extension rod piece is not hindered, and when the conical gear is adjusted to the lower position and limited by the lower limiting lock catch, the conical gear is meshed with the thread part of the outer edge surface of the extension rod piece by the rotatable shaft rod, so that the height of the flow resisting plug is manually controlled to realize the opening and closing control of the valve; the flow blocking plug is provided with a pressure release flow channel communicated to the conical limiting part from the upper part, so that the liquid pressure above the flow blocking plug is reduced due to the establishment of the pressure release flow channel, the liquid pressure is provided to the conical limiting part in the flow blocking plug, the flow blocking plug is supported and pressurized, and the stability of the flow blocking plug in the conduction cavity is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the valve of the present invention in a closed state;

FIG. 3 is a schematic structural view of the valve of the present invention in an open state;

FIG. 4 is a schematic structural diagram of an opening and closing actuator according to the present invention;

FIG. 5 is an enlarged view of the structure at A of FIG. 1 according to the present invention;

FIG. 6 is an enlarged schematic view of the structure of FIG. 2 at B in accordance with the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 3 at C according to the present invention;

fig. 8 is a schematic view of a choke plug of the present invention.

In the figure: 1 pipeline butt joint valve, 101 liquid inlet end, 102 liquid outlet end, 103 conducting cavity, 104 filter screen, 2 protective cover, 201 wing plate I, 3 butt joint pipe, 301 wing plate II, 4 opening and closing actuator, 401 reset spring, 5 sealing bolt, 6 sinking and floating bottle, 601 pressure cavity I, 602 pressure cavity II, 603 spring limit brim, 7 piston disc body, 701 limit bolt, 8 extending rod piece, 801 thread part, 9 flow-resisting plug, 901 conical limit part, 902 pressure-releasing flow channel, 90201 flow channel inlet, 90202 flow channel outlet, 10 conical gear, 1001 shaft lever, 11 embedded boss, 1101 slide way, 1102 limit lock catch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In a normal working state, the invention provides an intelligent electric actuator which can be switched after power failure and is shown in fig. 1, fig. 2 and fig. 4, comprising a pipeline butt joint valve 1, a protective cover 2 and a butt joint pipe 3, wherein the pipeline butt joint valve 1 is connected with the protective cover 2 through the butt joint pipe 3, one side of the pipeline butt joint valve 1 is provided with a liquid inlet end 101, the other side is provided with a liquid outlet end 102, a group of conducting cavities 103 which are opened and closed by an opening and closing executing mechanism 4 are arranged between the liquid inlet end 101 and the liquid outlet end 102, the protective cover 2 and the butt joint pipe 3 are provided with mutually communicated cavities, the opening and closing executing mechanism 4 is arranged in the cavities arranged in the protective cover 2 and the butt joint pipe 3, the opening and closing executing mechanism 4 comprises a sinking and floating bottle 6, a piston disc body 7 arranged in the sinking and floating bottle 6, an extension rod 8 connected with the bottom end of the sinking bottle 6 and a flow blocking plug 9 arranged at the end of the extension rod 8 for closing the conducting cavity 103 (the flow blocking cavity 103 is formed to adapt to the flow plug 9 The piston disc body 7 comprises a piston disc arranged in the floating and sinking bottle 6 and a group of connecting rods extending out of the floating and sinking bottle 6, the top ends of the connecting rods extend out of the protective cover 2 and are fastened and limited by a group of limiting bolts 701, the piston disc of the piston disc body 7 divides the space in the floating and sinking bottle 6 into a first pressure cavity 601 at the lower part and a second pressure cavity 602 at the upper part, a pipeline with an electric control valve is arranged on one side of the piston disc and is communicated with the first pressure cavity 601 and the second pressure cavity 602, a pressure assembly is further arranged on the piston disc and adjusts the pressure difference value of the first pressure cavity 601 and the second pressure cavity 602, and displacement of the floating and sinking bottle 6 relative to the piston disc body 7 is realized. During operation, hydraulic pressure or atmospheric pressure adjusting device are selected for the pressure subassembly, the substances that now brief said and fill into pressure chamber one 601 and pressure chamber two 602 are the medium, when pressure subassembly's start, if need choke plug 9 to seal conduction chamber 103, only need to make pressure subassembly fill the medium into pressure chamber one 601, can make to sink and float bottle 6 to rise, make extension member 8 drive choke plug 9 and rise the jam and lead to chamber 103, if need choke plug 9 no longer block and lead to chamber 103, only need make pressure subassembly fill the medium into pressure chamber two 602, can make to sink and float bottle 6 to descend, make extension liquid member 8 drive choke plug 9 and descend, the conduction chamber 103 opens this moment, make

inlet end

101 and 102 communicate each other, realize opening of valve.

In order to realize that the valve can be closed after power failure, thereby realizing the safety protection of the field process flow and avoiding accidents, the invention provides the intelligent electric actuator which can be opened and closed after power failure and is shown in figures 1, 3, 4 and 5, the intelligent electric actuator comprises a pipeline butt joint valve 1, a protective cover 2 and a butt joint pipe 3, wherein the pipeline butt joint valve 1 is connected with the protective cover 2 through the butt joint pipe 3, one side of the pipeline butt joint valve 1 is provided with a liquid inlet end 101, the other side of the pipeline butt joint valve is provided with a liquid outlet end 102, a group of conducting cavities 103 which are opened and closed by an opening and closing actuating mechanism 4 are arranged between the liquid inlet end 101 and the liquid outlet end 102, the protective cover 2 and the butt joint pipe 3 are internally provided with mutually communicated cavities, and the opening and closing actuating mechanism 4 is arranged in the cavities which are arranged in the protective cover 2 and the butt joint pipe 3;

the opening and closing actuating mechanism 4 comprises a sinking and floating bottle 6, a piston disc body 7 arranged in the sinking and floating bottle 6, an extension rod 8 connected with the bottom end of the sinking and floating bottle 6 and a choke plug 9 arranged at the end part of the extension rod 8 and used for sealing the conducting cavity 103, the sinking and floating bottle 6 is provided with a group of elastic components for driving the sinking and floating bottle 6 to reset, the upper part of the outer edge surface of the sinking and floating bottle 6 is provided with a group of spring limiting eaves 603 for abutting the elastic components, the elastic components are reset springs 401, one end of each reset spring 401, far away from the spring limiting eaves 603, abuts against the bottom of the protective cover 2, due to the arrangement of the reset springs 401, when the equipment is powered off, the choke plug 9 is reset under the elastic driving of the reset springs 401, the springs reset can close the valve after the power off, the safety protection of the field process flow is realized, and accidents are avoided;

the outer edge of the extension rod 8 is provided with a thread portion 801, the thread portion 801 is meshed with a group of bevel gears 10 installed in the butt joint pipe 3 to realize manual adjustment, the bevel gears 10 are provided with a group of shaft rods 1001 coaxial with the bevel gears 10, the connection positions of the end portions of the shaft rods 1001 and the butt joint pipe 3 are provided with embedding bosses 11, the embedding bosses 11 are provided with slideways 1101 for the sliding adjustment of the shaft rods 1001, when the bevel gears 10 are limited by the upper limiting lock catches 1102, the lifting of the extension rod 8 is not hindered, when the bevel gears 10 are adjusted to the lower side and limited by the lower limiting lock catches 1102, the shaft rods 1001 can be rotated to realize the meshing of the thread portion 801 of the outer edge surface of the extension rod 8 by the bevel gears 10, and therefore the height of the choke plug 9 can be manually controlled to realize the opening and closing control of the valve.

The bottom end of the protective cover 2 is provided with a group of wing plates 201 covering the periphery of the protective cover 2, the top end of the butt joint pipe 3 is provided with a group of wing plates 301 covering the periphery of the butt joint pipe 3, and the wing plates 201 and the wing plates 301 are fastened through bolts.

A group of sealing bolts 5 sleeved on the periphery of the extension rod 8 are arranged at the connecting position of the pipeline butt joint valve 1 and the protective cover 2, and the sealing bolts 5 are used for blocking the liquid in the liquid inlet end 101 to prevent the liquid from flowing into the butt joint pipe 3.

The engaging boss 11 is provided with two sets of limiting latches 1102 for limiting the shaft rod 1001, the shaft rod 1001 and the limiting latches 1102 are rotatably connected, and in specific implementation, the rotation direction of the shaft rod 1001 can be irreversible, so as to prevent the sinking and floating bottle 6 from being reset under the driving of the elastic force of the return spring 401, and the end of the shaft rod 1001 is provided with a crank structure for driving the shaft rod 1001.

In order to ensure the stability of the choke plug 9 in the conducting cavity 103, the present invention provides an intelligent electric actuator which can be opened and closed after power failure as shown in fig. 6, 7 and 8, and which comprises a set of choke plugs 9, wherein a conical limiting portion 901 is formed at the bottom end of the choke plug 9, a plurality of pressure release channels 902 are formed in the choke plug 9, a channel inlet 90201 communicated with the outside is formed above the choke plug 9 by the pressure release channels 902, a channel outlet 90202 communicated with the outside is formed in the pressure release channels 902 in the direction of the conical limiting portion 901, the pressure release channels 902 are L-shaped, and a plurality of sets of pressure release channels are arranged in a circular array around the extension rod 8, the choke plug 9 is provided with pressure release channels 902 communicated with the conical limiting portion 901 from the top, and thanks to the establishment of the pressure release channels 902, the liquid pressure above the choke plug 9 is reduced, and the liquid pressure is provided to the conical limiting portion 901 inside the choke plug 9, the choke plug 9 is supported and pressurized, and the stability of the choke plug 9 in the conducting cavity 103 is ensured.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a but intelligence electric actuator of switch after outage, includes pipeline butt joint valve (1), protection casing (2), butt joint pipe (3), pipeline butt joint valve (1) is connected through butt joint pipe (3) with protection casing (2), feed liquor end (101) have been seted up to one side of pipeline butt joint valve (1), and play liquid end (102) have been seted up to the opposite side, be equipped with a set of lead-through chamber (103) of carrying out the switching by opening and close actuating mechanism (4) between feed liquor end (101) and play liquid end (102), the cavity that feeds through each other has been seted up in protection casing (2) and butt joint pipe (3), open and close actuating mechanism (4) and install in the cavity of seting up in protection casing (2) and butt joint pipe (3), its characterized in that: the opening and closing actuating mechanism (4) comprises a sinking and floating bottle (6), a piston disc body (7) arranged in the sinking and floating bottle (6), an extension rod piece (8) connected with the bottom end of the sinking and floating bottle (6) and a flow blocking plug (9) arranged at the end part of the extension rod piece (8) and used for sealing the communicating cavity (103), the sinking and floating bottle (6) is provided with a group of elastic components which drive the sinking and floating bottle to reset, the outer edge of the extension rod piece (8) is provided with a thread part (801), the thread part (801) is meshed with a group of bevel gears (10) arranged in the butt joint pipe (3) to realize manual adjustment, the bevel gear (10) having a set of shafts (1001) coaxial with the bevel gear (10), an embedding boss (11) is arranged at the connecting position of the end part of the shaft lever (1001) and the butt joint pipe (3), the embedding boss (11) is provided with a slideway (1101) for sliding adjustment of the shaft lever (1001).

2. The switchable intelligent electric actuator of claim 1, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: the bottom of protection casing (2) is equipped with a set of cladding in the peripheral pterygoid lamina of protection casing (2) one (201), the top of butt joint pipe (3) is equipped with a set of cladding in the peripheral pterygoid lamina of butt joint pipe (3) two (301), pass through the bolt fastening between pterygoid lamina one (201) and pterygoid lamina two (301).

3. The switchable intelligent electric actuator of claim 1, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: pipeline butt joint valve (1) and protection casing (2) hookup location are equipped with a set of cover and locate extension member (8) outlying sealing bolt (5), sealing bolt (5) are used for blockking in liquid inlet end (101) liquid prevent that it from flowing into in butt joint pipe (3).

4. The switchable intelligent electric actuator of claim 1, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: piston disk body (7) place piston disk and a set of connecting rod that extends to the outer of heavy superficial bottle (6) in the heavy superficial bottle (6) in including, and the top of connecting rod extends protection casing (2) and is fastened spacingly by a set of spacing bolt (701), the piston disk of piston disk body (7) will sink the pressure chamber two (602) that floats bottle (6) inner space branch into lower part pressure chamber one (601) and upper portion, and piston disk one side is equipped with the pipeline of taking the automatically controlled valve, pipeline intercommunication pressure chamber one (601) and pressure chamber two (602), still be equipped with pressure components on the piston disk, pressure components adjusts the pressure differential value of pressure chamber one (601) and pressure chamber two (602), realizes sinking the displacement of floating bottle (6) relative piston disk body (7).

5. The switchable intelligent electric actuator of claim 4, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: the outer fringe face upper portion of sinking and floating bottle (6) is equipped with the spacing eaves of spring (603) of a set of confession elastic component butt, and elastic component is reset spring (401), reset spring (401) keep away from the one end butt of the spacing eaves of spring (603) in the bottom of protection casing (2).

6. The switchable intelligent electric actuator of claim 1, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: the conducting cavity (103) is formed into a pore channel suitable for the flow blocking plug (9), and a group of filter screens (104) is arranged above the conducting cavity (103).

7. The switchable intelligent electric actuator of claim 6, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: the bottom end of the flow blocking plug (9) is provided with a conical limiting part (901), a plurality of pressure release flow passages (902) are formed in the flow blocking plug (9), a flow passage inlet (90201) communicated to the outside is formed in the pressure release flow passage (902) above the flow blocking plug (9), and a flow passage outlet (90202) communicated to the outside is formed in the pressure release flow passage (902) in the direction of the conical limiting part (901).

8. The switchable intelligent electric actuator of claim 7, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: the pressure relief flow passage (902) is L-shaped, and a plurality of groups are arranged around the extension rod (8) in an annular array.

9. The switchable intelligent electric actuator of claim 1, wherein the switchable intelligent electric actuator is configured to be switched on and off after power failure: the embedded boss (11) is provided with two groups of limiting lock catches (1102) of limiting shaft rods (1001), the shaft rods (1001) are rotatably connected with the limiting lock catches (1102), and the end parts of the shaft rods (1001) are provided with crank structures for driving the shaft rods (1001).