Valve element assembly of electric control valve

Abstract

The utility model discloses a valve core assembly of an electric control valve, which belongs to the technical field of electric control valves and is characterized by comprising a valve seat, a protective assembly movably connected inside the valve seat, an electric assembly fixedly connected to the top of the valve seat, the protective assembly comprises a valve rod movably connected inside the valve seat, and the valve rod is fixedly connected to the top of the valve seat. The bottom of the valve rod is in threaded connection with a core body, the bottom of the core body is fixedly connected with a core rod, the surface of the core rod is sleeved with a protection sleeve, and the top of the protection sleeve is fixedly connected with a fixing ring. Meanwhile, the whole valve element is prevented from being replaced during maintenance work after long-time work, so that the maintenance cost is reduced, the movement of the element body is conveniently controlled by arranging the electric assembly, the flow velocity of a medium is adjusted in cooperation with the valve seat, meanwhile, accurate adjustment can be achieved, and the flow is controlled within the extremely small error range.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric governing valve technical field, especially electric governing valve's valve core subassembly. BACKGROUND

[0002] Electric governing valve is a kind of automatic valve driven by electric actuator to drive valve core movement, to realize the accurate control of fluid flow, pressure or liquid level parameter.

[0003] Traditional sleeve governing valve includes valve seat, valve stem, valve core, upper valve cover, valve sleeve and sleeve, sleeve is arranged between valve sleeve and valve seat, valve core is arranged in sleeve and valve seat, throttle window is set on sleeve to regulate flow, at this time, if throttle window is set too large, sleeve strength cannot meet the requirement, and sleeve deformation is caused to cause jam, for this, only the setting area of throttle window can be reduced, if the size of throttle window is ensured, sleeve strength meets the requirement, sleeve needs to be thickened, the overall appearance and weight of governing valve are increased, cost is increased, and the contact area of valve core and sleeve of traditional sleeve governing valve is larger, when medium scaling and ice blocking occur, governing valve is easily jammed or valve core is damaged.

[0004] The existing patent (announcement number: CN217272027U) provides a valve core and flow regulating valve, compared with the prior art that throttle window is set on sleeve, the scheme does not need to consider the contradictory relationship that the larger throttle window is, the lower sleeve strength is, avoids sleeve deformation caused by the setting of throttle window, and reduces the possibility of valve core jamming.

[0005] For the above problems, the existing patent provides a solution, but in many industrial production processes, medium often contains solid particles, such as catalyst particles in chemical production, ore pulp in mining industry, etc., these particles can cause serious wear to valve core during medium flow, resulting in the decrease of valve core adjustment accuracy, and the existing maintenance method is to replace the entire valve core, which has high maintenance cost.

[0006] Therefore, an electric governing valve valve core assembly is provided. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing an electric governing valve valve core assembly, which can solve the problem that in many industrial production processes, medium often contains solid particles, such as catalyst particles in chemical production, ore pulp in mining industry, etc., these particles can cause serious wear to valve core during medium flow, resulting in the decrease of valve core adjustment accuracy, and the existing maintenance method is to replace the entire valve core, which has high maintenance cost.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a valve core subassembly of electric governing valve, including valve seat, the inside movable joint of valve seat has the protection assembly, the top fixed connection of valve seat has electric set;

[0009] The protection assembly includes a valve stem, the valve stem is movably connected in the inside of the valve seat, the bottom of the valve stem is threadedly connected with a core body, the bottom of the core body is fixedly connected with a core rod, the surface of the core rod is sleeved with a protective sleeve, the top of the protective sleeve is fixedly connected with a fixed ring, and the fixed ring is bolted on the bottom of the core body.

[0010] Preferably, the electric set includes a fixed seat, the fixed seat is fixedly connected to the top of the valve seat, the top of the fixed seat is bolted with a support frame, and the top of the support frame is fixedly connected with a telescopic motor.

[0011] Preferably, the inner wall of the support frame is bolted with a sealing seat, the number of the sealing seat is two and is evenly distributed on the inner wall of the support frame, and the valve stem is movably connected in the inside of the sealing seat.

[0012] Preferably, the top of the support frame is bolted with a mounting seat, the telescopic motor is fixedly connected to the top of the mounting seat, and the inside of the mounting seat and the fixed seat is movably connected with a fixed bolt.

[0013] Preferably, the top of the core body is fixedly connected with a connecting sleeve, the valve stem is threadedly connected in the inside of the connecting sleeve, the inside of the fixed ring is movably connected with a fixed rod, and the fixed rod penetrates through the fixed ring and extends to the inside of the core body.

[0014] Preferably, the inside of the fixed ring is provided with a fixed hole matched with the fixed rod, the inside of the core body is provided with a positioning hole matched with the fixed rod, the fixed rod penetrates through the fixed hole and extends to the inside of the positioning hole, and the fixed rod is threadedly connected in the inside of the positioning hole.

[0015] Preferably, the side of the valve stem close to the telescopic motor is fixedly connected with the output end of the telescopic motor, the surface of the valve stem is fixedly connected with a pointer, and the inner wall of the support frame is fixedly connected with a scale plate matched with the pointer.

[0016] Preferably, the inside of the valve seat is provided with a through hole matched with the core body, and the surface of the valve seat is fixedly connected with a flange.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、The protection assembly is arranged to protect the valve core, avoid the wear of the valve core due to medium and other factors during work, and avoid replacing the whole valve core during maintenance operation after long-time work, so that the maintenance cost is reduced.

[0019] 2、The application achieves convenient control of the core activity by setting the electric assembly, thereby adjusting the medium flow rate in cooperation with the valve seat, and can realize accurate adjustment and control the flow rate in a very small error range. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an overall structural diagram of the valve core assembly of the electric regulating valve of the utility model;

[0021] Figure 2 It is a connection schematic diagram of the valve seat and the protection assembly of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the protection assembly of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the electric assembly of the utility model;

[0024] Figure 5 It is another angle schematic diagram of the protection assembly of the utility model.

[0025] In the figure, 1, valve seat; 2, protection assembly; 201, valve rod; 202, core; 203, core rod; 204, protection sleeve; 205, fixed ring; 3, electric assembly; 301, fixed seat; 302, support frame; 303, telescopic motor; 4, sealing seat; 5, mounting seat; 6, fixed bolt; 7, connecting sleeve; 8, fixed rod; 9, fixed hole; 10, positioning hole; 11, pointer; 12, scale plate; 13, through hole; 14, flange. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] A valve core assembly of an electric regulating valve, comprising a valve seat 1, the inside of the valve seat 1 movably connected with a protection assembly 2, the top of the valve seat 1 fixedly connected with an electric assembly 3;

[0029] The protection assembly 2 comprises a valve rod 201 movably connected in the inside of the valve seat 1, the bottom of the valve rod 201 is threadedly connected with a core body 202, the bottom of the core body 202 is fixedly connected with a core rod 203, the surface of the core rod 203 is sleeved with a protection sleeve 204, the top of the protection sleeve 204 is fixedly connected with a fixing ring 205, and the fixing ring 205 is bolted to the bottom of the core body 202.

[0030] In the embodiment, the protection assembly 2 and the electric assembly 3 are fixed by the valve seat 1, then the protection effect of the core body 202 is achieved by the protection assembly 2, the movement of the core body 202 is controlled by the electric assembly 3, the movement range of the valve rod 201 is fixed by the valve seat 1, the core body 202 is fixed by the valve rod 201, then the core rod 203 is fixed by the core body 202, the working positions of the protection sleeve 204 and the fixing ring 205 are fixed by the core rod 203, and the protection effect of the core body 202 is achieved by the protection sleeve 204.

[0031] Specifically, as shown in Figure 4 The electric assembly 3 comprises a fixed seat 301 fixedly connected to the top of the valve seat 1, the top of the fixed seat 301 is bolted with a support frame 302, and the top of the support frame 302 is fixedly connected with a telescopic motor 303.

[0032] Specifically, as shown in Figure 4 The inner wall of the support frame 302 is bolted with a sealing seat 4, the number of the sealing seat 4 is two and is uniformly distributed on the inner wall of the support frame 302, and the valve rod 201 is movably connected in the inside of the sealing seat 4.

[0033] Specifically, as shown in Figure 4 The top of the support frame 302 is bolted with a mounting seat 5, the telescopic motor 303 is fixedly connected to the top of the mounting seat 5, and the inside of the mounting seat 5 and the fixed seat 301 is movably connected with a fixing bolt 6.

[0034] In the embodiment, the fixed seat 301 is fixed by the valve seat 1, the support frame 302 is fixed by the fixed seat 301, the telescopic motor 303 is fixed by the support frame 302, the sealing seat 4 is fixed by the support frame 302, thereby avoiding leakage when the valve rod 201 moves, the mounting seat 5 is fixed by the support frame 302, and the working positions of the fixing bolt 6 are fixed by the mounting seat 5 and the fixed seat 301, thereby the support frame 302 and the mounting seat 5 are fixed by the fixing bolt 6.

[0035] Specifically, as shown in Figure 5 The top of the core body 202 is fixedly connected with a connecting sleeve 7, the valve rod 201 is threadedly connected in the inside of the connecting sleeve 7, the inside of the fixing ring 205 is movably connected with a fixing rod 8, and the fixing rod 8 penetrates through the fixing ring 205 and extends into the inside of the core body 202.

[0036] Specifically, as shown in Figure 5 The inner portion of the fixed ring 205 is provided with a fixed hole 9 for cooperating with the fixed rod 8, and the inner portion of the core 202 is provided with a positioning hole 10 for cooperating with the fixed rod 8. The fixed rod 8 penetrates the fixed hole 9 and extends into the inner portion of the positioning hole 10, and is threadedly connected in the inner portion of the positioning hole 10.

[0037] In this embodiment, the connecting sleeve 7 is fixed by the core 202, the valve rod 201 is connected with the core 202 through the connecting sleeve 7, the fixed rod 8 is fixed in the working position by the fixed ring 205, and the fixed rod 8 is fixed to the fixed ring 205 through the fixed hole 9 in the inner portion of the fixed ring 205 and the positioning hole 10 in the inner portion of the core 202.

[0038] Specifically, as shown in Figure 4 The side of the valve rod 201 close to the telescopic motor 303 is fixedly connected with the output end of the telescopic motor 303, the surface of the valve rod 201 is fixedly connected with a pointer 11, and the inner wall of the support frame 302 is fixedly connected with a scale plate 12 for cooperating with the pointer 11.

[0039] Specifically, as shown in Figure 2 The inner portion of the valve seat 1 is provided with a through hole 13 for cooperating with the core 202, and the surface of the valve seat 1 is fixedly connected with a flange 14.

[0040] In this embodiment, the valve rod 201 is fixed by the telescopic motor 303, so that the valve rod 201 and the core 202 can move, the pointer 11 is fixed by the valve rod 201, the scale plate 12 is fixed by the support frame 302, so as to cooperate with the pointer 11 to indicate the position of the core 202, the through hole 13 in the inner portion of the valve seat 1 is used to facilitate the core 202 to control the flow rate of the medium, and the flange 14 fixed to the valve seat 1 is used to facilitate the connection with the pipeline outside.

[0041] Working principle: after the electric regulating valve is installed, the valve seat 1 is connected with the pipeline outside through the flange 14. When it is necessary to control the flow rate of the medium, the telescopic motor 303 is started to control the valve rod 201 to rise through the external power supply, and the core 202 threadedly connected with the valve rod 201 is driven to move in the through hole 13, so as to open the through hole 13. At this time, the protective sleeve 204 fixed by the core 202 and the fixed ring 205 is driven to rise, the opening degree of the through hole 13 is increased, so as to increase the flow rate, and the pointer 11 fixed to the valve rod 201 is driven to move, so as to cooperate with the scale plate 12 to display the position of the core 202 in the valve seat 1.

[0042] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A valve core assembly for an electrically operated regulating valve, comprising a valve seat (1), characterized in that: The valve seat (1) is internally connected to a protective component (2), and the top of the valve seat (1) is fixedly connected to an electric component (3); The protective component (2) includes a valve stem (201), which is movably connected to the inside of the valve seat (1). The bottom of the valve stem (201) is threadedly connected to a core (202), and the bottom of the core (202) is fixedly connected to a core rod (203). A protective sleeve (204) is fitted on the surface of the core rod (203), and a fixing ring (205) is fixedly connected to the top of the protective sleeve (204). The fixing ring (205) is bolted to the bottom of the core (202).

2. The valve core assembly of an electric regulating valve according to claim 1, characterized in that: The electric component (3) includes a fixed base (301) which is fixedly connected to the top of the valve seat (1). A support frame (302) is bolted to the top of the fixed base (301), and a telescopic motor (303) is fixedly connected to the top of the support frame (302).

3. The valve core assembly of an electric regulating valve according to claim 2, characterized in that: The inner wall of the support frame (302) is bolted with a sealing seat (4), and the number of the sealing seats (4) is set to two and evenly distributed on the inner wall of the support frame (302). The valve stem (201) is movably connected inside the sealing seat (4).

4. The valve core assembly of an electric regulating valve according to claim 2, characterized in that: The top of the support frame (302) is bolted with a mounting base (5), and the telescopic motor (303) is fixedly connected to the top of the mounting base (5). The mounting base (5) and the fixed base (301) are both movably connected with fixing bolts (6).

5. The valve core assembly of an electric regulating valve according to claim 1, characterized in that: The top of the core (202) is fixedly connected to a connecting sleeve (7), the valve stem (201) is threadedly connected inside the connecting sleeve (7), and a fixing rod (8) is movably connected inside the fixing ring (205). The fixing rod (8) passes through the fixing ring (205) and extends into the interior of the core (202).

6. The valve core assembly of an electric regulating valve according to claim 5, characterized in that: The fixing ring (205) has a fixing hole (9) inside that is used to cooperate with the fixing rod (8), and the core (202) has a positioning hole (10) inside that is used to cooperate with the fixing rod (8). The fixing rod (8) passes through the fixing hole (9) and extends into the positioning hole (10). The fixing rod (8) is threaded into the positioning hole (10).

7. The valve core assembly of an electric regulating valve according to claim 2, characterized in that: The valve stem (201) is fixedly connected to the output end of the telescopic motor (303) on the side near the telescopic motor (303). A pointer (11) is fixedly connected to the surface of the valve stem (201). A scale plate (12) that works with the pointer (11) is fixedly connected to the inner wall of the support frame (302).

8. The valve core assembly of an electric regulating valve according to claim 1, characterized in that: The valve seat (1) has a through hole (13) inside that is used to cooperate with the core (202), and a flange (14) is fixedly connected to the surface of the valve seat (1).

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