CN218761729U

CN218761729U - Emulsified asphalt overflow proportion regulating valve

Info

Publication number: CN218761729U
Application number: CN202223281907.9U
Authority: CN
Inventors: 张晓东; 尹航; 王强; 王毅; 刘临东; 陈福民; 李�杰; 王指阳; 宋家楠
Original assignee: Liaoning New Development Road Technology Maintenance Co ltd
Current assignee: Liaoning New Development Road Technology Maintenance Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-28
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to an emulsified asphalt overflow proportional control valve, including valve body, solenoid electric assembly and case, its technical essential is: the top of the valve body is fixed with a positioning shell corresponding to the electromagnetic control assembly, a guide pipe is arranged in the positioning shell, the electromagnetic control assembly comprises an electromagnetic coil positioned between the guide pipe and the positioning shell and a magnet positioned in the guide pipe, a connecting column is fixed on the lower end face of the magnet, a guide hole corresponding to the connecting column is formed in the top face of the valve body, the center of the top face of the valve core is fixedly connected with the lower end of the connecting column, a sealing ring is arranged on the outer peripheral face of the valve core, a reset spring is arranged between the bottom face of the valve core and the bottom face of the inner cavity of the valve body, an emulsified asphalt overflow inlet is formed in one side of the valve body, an emulsified asphalt overflow outlet is formed in the other side of the valve body, a heating coil is arranged in the valve core, and a temperature sensor is inserted in the inner cavity of the valve body. The problem that emulsified asphalt adheres and condenses under the low temperature environment in the existing overflow proportion regulating valve is solved, the valve core is prevented from moving in the valve cavity, and the reaction sensitivity of the valve body is ensured.

Description

Emulsified asphalt overflow proportion regulating valve

Technical Field

The utility model relates to an used overflow valve of emulsified asphalt pipeline, concretely relates to emulsified asphalt overflow proportional control valve.

Background

The emulsified asphalt is road asphalt used at high temperature, and is liquefied into a road building material with low viscosity and good fluidity at normal temperature by mechanical stirring and emulsification and diffusion into water. When the emulsified asphalt is distributed, the materials in the emulsified asphalt storage tank are generally conveyed to the distribution nozzle through the conveying pipeline and the pressure pump, and the emulsified asphalt is uniformly distributed on the construction pavement through the distribution nozzle. In order to ensure the stable spraying pressure of the spraying nozzle and prevent the vibration of the conveying pipeline, an overflow proportion regulating valve is usually installed at the outlet of the pressurizing pump to enable part of emulsified asphalt to flow back when the pressure in the pipeline exceeds a set pressure value so as to reduce the pressure in the pipeline.

At present, an overflow proportion regulating valve structure applied to an emulsified asphalt conveying pipeline comprises a valve body, an electromagnetic control assembly fixed at the top of the valve body, and a valve core arranged in the valve body and connected with the electromagnetic control assembly, wherein according to an output signal of a monitoring sensor in the pipeline, the electromagnetic control assembly inputs control current in proportion and outputs control force for moving the position of the valve core in proportion, so that the opening of the valve body is regulated in proportion, and the emulsified asphalt overflows in proportion.

However, under the condition of low ambient temperature, emulsified asphalt is easy to generate an adhesion and condensation phenomenon on the side wall of the valve cavity after being used for a period of time, and the movement of the valve core in the valve cavity is influenced, so that the reaction sensitivity of the valve body is influenced.

Disclosure of Invention

An object of the utility model is to provide a rational in infrastructure, use reliable emulsified asphalt overflow proportional control valve, solve among the current overflow proportional control valve problem that emulsified asphalt adhesion condenses under low temperature environment, avoid the case to remove in the valve pocket obstructed, guarantee the reaction sensitivity of valve body.

The technical scheme of the utility model is that:

the utility model provides an emulsified asphalt overflow proportion regulating valve, includes valve body, solenoid electric component and case, and its technical essential is: the valve body is cylindrical, a positioning shell corresponding to the electromagnetic control assembly is fixed at the top of the valve body, a guide pipe coaxial with the valve body is arranged in the positioning shell, the electromagnetic control assembly consists of an electromagnetic coil positioned between the guide pipe and the positioning shell and a magnet positioned in the guide pipe, a connecting column is fixed on the lower end face of the magnet, a guide hole corresponding to the connecting column is formed in the top surface of the valve body, a valve core is positioned in the valve body, the center of the top surface of the valve core is fixedly connected with the lower end of the connecting column, a sealing ring in close contact with the inner wall of the valve body is arranged on the outer peripheral surface of the valve core, a reset spring is arranged between the bottom surface of the valve core and the bottom surface of an inner cavity of the valve body, an emulsified asphalt overflow inlet is formed in one side of the valve body, an emulsified asphalt overflow outlet is formed in the other side of the valve body, the valve core blocks the emulsified asphalt overflow inlet and the emulsified asphalt outlet in a non-working state, the emulsified asphalt overflow inlet and the emulsified asphalt outlet are not blocked or not completely blocked in the working state, a heating coil is arranged in the valve core, the electricity taking end of the heating coil is connected with a wiring terminal on the side wall of the valve body by a lead, and a temperature sensor is additionally inserted in the inner cavity of the valve body.

The emulsified asphalt overflow proportion regulating valve comprises a valve core and two petal type jackets buckled on the outer peripheral surface of the flat cylindrical core, wherein the flat cylindrical core and the two petal type jackets are made of insulating materials respectively, a spiral groove I for coiling a heating coil is arranged on the outer peripheral surface of the flat cylindrical core, a spiral groove II corresponding to the spiral groove I is arranged on the inner peripheral surface of the two petal type jackets, the spiral groove I and the spiral groove II are buckled with each other to clamp the heating coil, a power taking end is led out from the bottom surface of the valve core, and a wiring end is positioned on the side wall of the valve body below the valve core.

In the emulsified asphalt overflow proportion regulating valve, the temperature sensor is positioned in the inner cavity of the valve body below the valve core so as to avoid the pollution of the emulsified asphalt.

In the emulsified asphalt overflow proportion regulating valve, the sealing sleeve extending downwards is arranged in the guide hole in the top surface of the valve body, and the sealing ring in close contact with the connecting column is arranged on the inner circumferential surface of the sealing sleeve.

According to the emulsified asphalt overflow proportion regulating valve, the bottom surface of the cavity of the valve body is provided with the positioning groove I corresponding to the lower end of the return spring, and the bottom surface of the valve core is provided with the positioning groove II corresponding to the upper end of the return spring.

The beneficial effects of the utility model are that:

1. according to the output signal of the monitoring sensor in the pipeline, when the pressure in the pipeline for conveying emulsified asphalt is greater than the set pressure, the electromagnetic coil is proportionally input with control current according to the actual pressure to generate repulsive force with the driving magnet, the force of the reset spring is overcome, the magnet drives the connecting column to move downwards, so that the valve core is driven to move downwards in the cavity of the valve body, the emulsified asphalt overflow inlet and the emulsified asphalt overflow outlet are not completely blocked or are completely separated, so that the emulsified asphalt in the pipeline for conveying emulsified asphalt enters the cavity of the valve body through the emulsified asphalt overflow inlet of the valve and then flows out of the cavity of the valve body through the emulsified asphalt overflow outlet, according to the output signal of the monitoring sensor in the pipeline, the control current in the electromagnetic coil changes in real time, the control force is proportionally output, the movement stroke of the valve core is controlled, and the purpose of adjusting the overflow amount in real time according to the pressure in the pipeline is achieved. Thereby ensuring the stable pressure in the pipeline for conveying the emulsified asphalt.

2. In order to solve the problem that emulsified asphalt adhesion condenses under low temperature environment among the current overflow ratio control valve, the utility model discloses built-in heating coil in the case, built-in temperature sensor in the valve body, after the temperature is less than the settlement temperature, heating coil gets the electricity heating, keeps in making the valve body always more than the settlement temperature, avoids emulsified asphalt adhesion to condense in the valve body cavity to avoided the case to remove in the valve body cavity to be obstructed, guaranteed the reaction sensitivity of valve body, in order to reach the purpose of real-time regulation.

Drawings

FIG. 1 is a schematic structural view of the present invention in an inoperative state;

fig. 2 is a schematic structural view of the working state of the present invention;

FIG. 3 is a right side view of FIG. 1;

fig. 4 is a schematic view of the valve cartridge of fig. 1.

In the figure: 1. the device comprises a positioning shell, 2 electromagnetic coils, 3 magnets, 4 guide pipes, 5 connecting columns, 6 valve bodies, 7 emulsified asphalt overflow outlets, 8 valve cores, 801 flat cylindrical core bodies, 802 two-piece type jackets, 9 connecting terminals, 10 conducting wires, 11 return springs, 12 temperature sensors, 13 heating coils, 14 sealing rings, 15 emulsified asphalt overflow inlets, 16 sealing sleeves and 17 sealing rings.

Detailed Description

The invention is described in detail according to the attached drawings.

As shown in fig. 1 to 4, the emulsified asphalt overflow proportion regulating valve comprises a valve body 6, an electromagnetic control assembly and a valve core 8.

The valve body 6 is cylindrical, a positioning shell 1 corresponding to the electromagnetic control assembly is fixed at the top of the valve body 6, and a guide pipe 4 coaxial with the valve body 6 is arranged in the positioning shell 1. The electromagnetic control assembly consists of an electromagnetic coil 2 positioned between a guide tube 4 and a positioning shell 1 and a magnet 3 positioned in the guide tube 4. The lower end face of the magnet 3 is fixed with a connecting column 5, the top face of the valve body 6 is provided with a guide hole corresponding to the connecting column 5, the valve core 8 is positioned in the valve body 1, and the center of the top face of the valve core is fixedly connected with the lower end of the connecting column 5. A sealing sleeve 16 extending downwards is arranged in the guide hole at the top surface of the valve body 6, and a sealing ring 17 in close contact with the connecting column 5 is arranged on the inner circumferential surface of the sealing sleeve 16.

The peripheral surface of the valve core 8 is provided with a sealing ring 14 which is in close contact with the inner wall of the valve body 6, and a return spring 11 is arranged between the bottom surface of the valve core 8 and the bottom surface of the inner cavity of the valve body 1. The bottom surface of the cavity of the valve body 1 is provided with a positioning groove I corresponding to the lower end of the return spring 11, and the bottom surface of the valve core 8 is provided with a positioning groove II corresponding to the upper end of the return spring 11.

The valve body 6 is provided with an emulsified asphalt overflow inlet 15 on one side and an emulsified asphalt overflow outlet 7 on the other side which is as high as the emulsified asphalt overflow inlet 15, the valve core 8 blocks the emulsified asphalt overflow inlet 15 and the emulsified asphalt overflow outlet 7 in the non-working state, and the emulsified asphalt overflow inlet 15 and the emulsified asphalt overflow outlet 7 are not blocked or not completely blocked in the working state. The valve core 8 is internally provided with a heating coil 13, the electricity taking end of the heating coil 13 is connected with the wiring end 9 on the side wall of the valve body 6 through a wire 10, and the inner cavity of the valve body 6 is additionally inserted with a temperature sensor 12.

In this embodiment, the valve core 8 is composed of a flat cylindrical core 801 and a two-piece cover 802 fastened to the outer peripheral surface of the flat cylindrical core 801. The flat cylindrical core 801 and the two-piece jacket 802 are made of insulating materials respectively, a spiral groove I used for coiling the heating coil 13 is formed in the outer peripheral surface of the flat cylindrical core 801, a spiral groove II corresponding to the spiral groove I is formed in the inner peripheral surface of the two-piece jacket 802, the spiral groove I and the spiral groove II are buckled with each other to clamp the heating coil 13, the power taking end 9 is led out from the bottom surface of the valve element 8, and the wiring end 9 is located on the side wall of the valve body 6 below the valve element 8. The temperature sensor 12 is positioned in the inner cavity of the valve body 6 below the valve core 8 to avoid the pollution of the emulsified asphalt.

The working principle is as follows:

before using, the utility model discloses an emulsified asphalt overflow inlet 15 and the pipe-line utilization three-way valve connection of carrying emulsified asphalt, the pipeline one end of carrying emulsified asphalt is connected back and is added pump outlet intercommunication, the first end of three-way valve is connected to the other end, the three-way valve second end with the utility model discloses an emulsified asphalt overflow inlet 15 is connected, and the third end communicates with the pipeline of carrying emulsified asphalt next section, and the pipeline end of carrying emulsified asphalt next section is used for connecting the cloth and spills the shower nozzle, the utility model discloses an emulsified asphalt overflow outlet 7 is connected to the overflow pipe of emulsified asphalt storage tank with the intercommunication.

When the pressure in the pipeline for conveying emulsified asphalt is higher than the set pressure, the electromagnetic coil 2 is proportionally input with control current according to the actual pressure to generate repulsive force with the driving magnet 3, the force of the reset spring 11 is overcome, the magnet 3 drives the connecting column 5 to move downwards, and the valve core 8 is driven to move downwards in the cavity of the valve body 6, so that the emulsified asphalt overflow inlet 15 and the emulsified asphalt overflow outlet 7 are not completely shielded to be separated from or completely separated from the emulsified asphalt overflow inlet 15 and the emulsified asphalt overflow outlet 7, emulsified asphalt in the pipeline for conveying emulsified asphalt enters the cavity of the valve body 6 through the emulsified asphalt overflow inlet 15 of the valve, and then flows out of the cavity of the valve body 6 through the emulsified asphalt overflow outlet 7. When the temperature in the valve is lower than the set temperature, the heating coil 13 is used for heating electricity, so that the temperature in the valve body 6 is always kept above the set temperature, the emulsified asphalt is prevented from being adhered and condensed in the cavity of the valve body 6, the valve core 8 is prevented from moving in the cavity of the valve body 6 and being blocked, the reaction sensitivity of the valve body is ensured, and the purpose of real-time adjustment is achieved.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The utility model provides an emulsified asphalt overflow proportion regulating valve, includes valve body, solenoid electric assembly and case, its characterized in that: the valve body is cylindrical, a positioning shell corresponding to the electromagnetic control assembly is fixed at the top of the valve body, a guide pipe coaxial with the valve body is arranged in the positioning shell, the electromagnetic control assembly consists of an electromagnetic coil positioned between the guide pipe and the positioning shell and a magnet positioned in the guide pipe, a connecting column is fixed on the lower end face of the magnet, a guide hole corresponding to the connecting column is formed in the top surface of the valve body, a valve core is positioned in the valve body, the center of the top surface of the valve core is fixedly connected with the lower end of the connecting column, a sealing ring in close contact with the inner wall of the valve body is arranged on the outer peripheral surface of the valve core, a reset spring is arranged between the bottom surface of the valve core and the bottom surface of an inner cavity of the valve body, an emulsified asphalt overflow inlet is formed in one side of the valve body, an emulsified asphalt overflow outlet is formed in the other side of the valve body, the valve core blocks the emulsified asphalt overflow inlet and the emulsified asphalt outlet in a non-working state, the emulsified asphalt overflow inlet and the emulsified asphalt outlet are not blocked or not completely blocked in the working state, a heating coil is arranged in the valve core, the electricity taking end of the heating coil is connected with a wiring terminal on the side wall of the valve body by a lead, and a temperature sensor is additionally inserted in the inner cavity of the valve body.

2. The emulsified asphalt overflow ratio regulating valve according to claim 1, wherein: the valve core is composed of a flat cylindrical core body and two petal type jackets buckled on the outer peripheral surface of the flat cylindrical core body, the flat cylindrical core body and the two petal type jackets are made of insulating materials respectively, a spiral groove I used for coiling the heating coil is formed in the outer peripheral surface of the flat cylindrical core body, a spiral groove II corresponding to the spiral groove I is formed in the inner peripheral surface of the two petal type jackets, the spiral groove I and the spiral groove II are buckled oppositely to clamp the heating coil, the electricity taking end is led out from the bottom surface of the valve core, and the wiring end is located on the side wall of the valve body below the valve core.

3. The emulsified asphalt overflow ratio regulating valve according to claim 1, wherein: the temperature sensor is positioned in the inner cavity of the valve body below the valve core.

4. The emulsified asphalt overflow ratio regulating valve according to claim 1, wherein: the inner edge of the guide hole in the top surface of the valve body is provided with a sealing sleeve extending downwards, and the inner circumferential surface of the sealing sleeve is provided with a sealing ring in close contact with the connecting column.

5. The emulsified asphalt overflow ratio regulating valve according to claim 1, wherein: the bottom surface of the cavity of the valve body is provided with a positioning groove I corresponding to the lower end of the return spring, and the bottom surface of the valve core is provided with a positioning groove II corresponding to the upper end of the return spring.