CN218207983U - Energy-saving valve of ash conveying system - Google Patents
Energy-saving valve of ash conveying system Download PDFInfo
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- CN218207983U CN218207983U CN202222729763.2U CN202222729763U CN218207983U CN 218207983 U CN218207983 U CN 218207983U CN 202222729763 U CN202222729763 U CN 202222729763U CN 218207983 U CN218207983 U CN 218207983U
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Abstract
The utility model relates to an ash conveying system energy-saving valve, which comprises a valve body, a valve core and a valve cover, wherein a pressure setting device is arranged between the valve core and the valve cover, an air vent is arranged between an inlet channel and an outlet channel of the valve body, an air pressure channel can be automatically switched according to the circulation state of an ash conveying pipeline medium, the air supply quantity is adjusted, the valve core is in sealing fit with a sealing surface of a valve seat in the normal circulation state of the ash conveying pipeline, an air source outputs smaller air pressure through the air vent to enter the ash conveying pipeline, and the ash conveying pipeline is pushed by assistance to normally convey the ash medium; when the ash conveying pipeline is blocked, the gas pressure of the inlet channel of the valve body rises to push the valve core to open, and high-pressure gas enters the ash conveying pipeline from the inlet channel to the outlet channel to push ash media to circulate. The gas consumption of the ash conveying pipeline during normal circulation is greatly reduced, the gas source consumption is reduced, and the energy-saving effect is good.
Description
Technical Field
The utility model belongs to the valve field especially relates to an ash conveying control valve. The utility model is suitable for a control valve of defeated grey system pipeline of electric power.
Background
On the electric ash conveying system pipeline, the flow channel of the coal ash and the ash medium needs to be pushed by the aid of air pressure, so an air conveying valve is generally connected to the inlet of the ash conveying pipeline, the air pressure enters the ash conveying pipeline through the air conveying valve, and the ash medium is pushed to flow by the aid of the air pressure. At present, a gas delivery valve used in a dust delivery system generally adopts a combination structure of a pressure stabilizing valve and a check valve, the pressure stabilizing valve is used for controlling the pressure of a gas source to stabilize the gas pressure entering a pipeline of the dust delivery system, and the check valve is used for preventing a dust medium from entering the gas source pipeline. The main disadvantages are: in the working process of the ash conveying system, the air pressure and the flow of an air source for conveying the ash medium by assistance are stable values, and the ash conveying pipeline needs larger air pressure assistance to push the ash medium to flow when starting ash conveying, and only needs smaller air pressure when conveying the ash normally. However, the output air pressure of the existing air delivery valve is not changed, which causes the air source consumption of the ash delivery pipeline to be larger and generates larger energy consumption.
Disclosure of Invention
The utility model discloses shortcoming to prior art exists provides one kind and can carry out automatically regulated atmospheric pressure according to the operating condition of defeated grey pipeline, reduces energy resource consumption, energy-conserving effectual defeated grey system energy-saving valve.
The utility model adopts the following technical scheme:
an energy-saving valve of a dust conveying system comprises a valve body, a valve core and a valve cover, wherein the valve body is provided with an air inlet and an air outlet, a valve seat sealing surface is arranged on a horizontal step between an inlet channel and an outlet channel of the valve body, a sealing surface matched with the valve seat sealing surface is arranged on the lower end surface of the valve core, the air inlet is communicated with the inlet side of the valve seat sealing surface through the inlet channel, the air outlet is communicated with the upper side of the valve seat sealing surface through the outlet channel, and the valve cover is fixedly arranged on the upper end surface of the valve body through bolts; the method is characterized in that: a pressure setting device is arranged between the valve core and the valve cover, the pressure setting device consists of a spring and an adjusting screw, the spring is pressed in a spring hole of the valve cover by the adjusting screw, the lower end of the spring is pressed in a circular concave hole in the center of the upper end surface of the valve core, and a pressing plate is arranged between the upper end of the spring and the lower end of the adjusting screw; the inner cavity of the valve body above the outlet channel is matched with the outer cylindrical surface of the valve core to form a piston type structure, the diameter of the inner cavity of the valve body from the outlet channel to the sealing surface of the valve seat is larger than that of the outer cylindrical surface of the valve core, and the valve core has an axial moving space in the inner cavity of the valve body; a vent hole is arranged between the inlet channel and the outlet channel, and a check valve is arranged between the outlet channel and the air outlet.
Preferably, the center of the adjusting screw and the pressure plate is provided with an axial through hole.
Preferably, a flow regulating needle is arranged in the vent hole.
Preferably, the inner cavity of the valve body is provided with a large-diameter piston cavity and a small-diameter piston cavity, and the outer cylindrical surface of the valve core is provided with a large-diameter cylinder and a small-diameter cylinder which are in dynamic sealing fit with the large-diameter piston cavity and the small-diameter piston cavity.
Preferably, the check valve is composed of a side cover, a ball body, a pressure spring and a sealing seat, the side cover is fixedly installed on the end face of the outlet channel of the valve body through a screw, the sealing seat is installed at the opening of the outlet channel, the ball body is pressed by the pressure spring installed in the inner cavity of the side cover and is matched with the spherical sealing surface of the sealing seat to form a sealing pair, and a ball body positioning device is arranged in the inner cavity of the side cover.
Compared with the prior art, the utility model beneficial effect be: the pneumatic channel can be automatically switched according to the circulation state of the ash material medium, the air supply amount is adjusted, the spring pressing valve core of the pressure setting device is in sealing fit with the sealing surface of the valve seat in the normal circulation state of the ash material medium conveying pipeline, the air source outputs smaller air pressure through the vent hole to enter the ash conveying pipeline, and the ash material medium is pushed to be conveyed normally in an assisting mode; when the ash conveying pipeline is blocked, the gas pressure of the inlet channel of the valve body rises to push the valve core to open, and high-pressure gas enters the ash conveying pipeline from the inlet channel to the outlet channel to push ash media to circulate. Greatly reduces the gas consumption of the ash conveying pipeline during normal circulation, reduces the gas source consumption and has good energy-saving effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the valve comprises a valve body 1, a valve core 2, a sealing seat 3, a ball 4, a screw 5, a compression spring 6, a side cover 7, a small sealing ring 8, a large sealing ring 9, a valve cover 10, a bolt 11, a spring 12, a pressing plate 13 and an adjusting screw 14.
Detailed Description
The energy-saving valve of the ash conveying system shown in fig. 1 comprises a valve body 1, a valve core 2 and a valve cover 10, wherein the valve body 1 is provided with an air inlet and an air outlet, a valve seat sealing surface is arranged on a horizontal step between an inlet channel and an outlet channel of the valve body 1, a sealing surface matched with the valve seat sealing surface is arranged on the lower end surface of the valve core 2, the air inlet is communicated with the inlet side of the valve seat sealing surface through the inlet channel, the air outlet is communicated with the upper side of the valve seat sealing surface through the outlet channel, and the valve cover 10 is fixedly arranged on the upper end surface of the valve body 1 through a bolt 11; the method is characterized in that: a pressure setting device is arranged between the valve core 2 and the valve cover 10, the pressure setting device consists of a spring 12 and an adjusting screw 14, the spring 12 is pressed in a spring hole of the valve cover 10 by the adjusting screw 14, the lower end of the spring is pressed in a circular concave hole in the center of the upper end surface of the valve core 2, a pressing plate 13 is arranged between the upper end of the spring 12 and the lower end of the adjusting screw 14, the adjusting screw 14 is in threaded connection with the spring hole of the valve cover 10, the compression force of the spring 12 is changed by adjusting the axial position of the adjusting screw 14, and a setting pressure value is set; an inner cavity of the valve body 1 above the outlet channel is matched with an outer cylindrical surface of the valve core 2 to form a piston type structure, the diameter of the inner cavity of the valve body 1 between the outlet channel and a sealing surface of a valve seat is larger than that of the outer cylindrical surface of the valve core 2, so that the air pressure of the inlet channel can be directly communicated with the outlet channel after the valve core 2 is opened, the valve core 2 has an axial moving space in the inner cavity of the valve body 1, and when the air pressure of the inlet channel is larger than a set pressure value, the valve core 2 is pushed to move upwards axially; an air vent is arranged between the inlet channel and the outlet channel, the air vent is formed by drilling a hole in the valve body 1 to communicate the inlet channel with the outlet channel, the air pressure of the inlet channel passes through the air vent to the outlet channel, the setting pressure value is larger than the air pressure of the inlet channel when the air vent circulates, so that the valve core 2 is in a closed state when the ash conveying pipeline normally circulates, an air source pushes a medium to flow through the air vent, the air source consumption is reduced, and the energy is saved; the setting pressure value is smaller than the air pressure of the inlet channel when the vent hole is blocked, when the ash conveying pipeline is blocked, the air pressure of the inlet channel pushes the valve core 2 to rise and open, the air pressure of the inlet channel flows to the outlet channel through the sealing surface of the valve seat, and the high-pressure air pushes the medium of the ash conveying pipeline to flow. A check valve is arranged between the outlet channel and the air outlet to prevent the medium of the ash conveying pipeline from entering the inner cavity of the valve body 1.
The centers of the adjusting screw 14 and the pressing plate 13 are provided with axial through holes which are communicated with spring holes, so that the spring holes are balanced with external pressure, and the valve core 2 is ensured to move sensitively.
The flow regulating needle is arranged in the vent hole to regulate the gas flow of the vent hole, and the device is suitable for the air pressure requirements of different ash conveying pressure pipelines.
The inner cavity of the valve body 1 is provided with a large-diameter piston cavity and a small-diameter piston cavity, the outer cylindrical surface of the valve core 2 is provided with a large-diameter cylinder and a small-diameter cylinder which are in dynamic sealing fit with the large-diameter piston cavity and the small-diameter piston cavity, the stability of the valve core 2 during moving is improved, the outer cylindrical surface of the large-diameter cylinder is embedded with a large sealing ring 9, the outer cylindrical surface of the small-diameter cylinder is embedded with a small sealing ring 8, the sealing performance between the valve core 2 and the inner cavity of the valve body 1 is improved, and the small sealing ring 8 and the large sealing ring 9 are made of silicon rubber materials.
The check valve comprises side cap 7, spheroid 4, pressure spring 6 and seal receptacle 3, and side cap 7 is installed on 1 outlet channel terminal surface of valve body by 5 fixed mounting screws, and seal receptacle 3 is installed at the outlet channel mouth, and spheroid 4 compresses tightly and mutually supports with the spherical sealing face of seal receptacle 3 by the pressure spring 6 who installs at the side cap 7 inner chamber and constitutes sealed vice, sets up spheroid 4 positioner at the side cap 7 inner chamber, guarantees that spheroid 4 moves on the central line of seal receptacle 3.
In the present invention, "upper", "lower" and "horizontal" refer to the orientation description in the drawings, and should not be construed as limitations of the present invention.
Claims (5)
1. An energy-saving valve of an ash conveying system comprises a valve body (1), a valve core (2) and a valve cover (10), wherein the valve body (1) is provided with an air inlet and an air outlet, a valve seat sealing surface is arranged on a horizontal step between an inlet channel and an outlet channel of the valve body (1), a sealing surface matched with the valve seat sealing surface is arranged on the lower end surface of the valve core (2), the air inlet is communicated with the inlet side of the valve seat sealing surface through the inlet channel, the air outlet is communicated with the upper side of the valve seat sealing surface through the outlet channel, and the valve cover (10) is fixedly arranged on the upper end surface of the valve body (1) through a bolt (11); the method is characterized in that: a pressure setting device is arranged between the valve core (2) and the valve cover (10), the pressure setting device consists of a spring (12) and an adjusting screw rod (14), the spring (12) is pressed in a spring hole of the valve cover (10) through the adjusting screw rod (14), the lower end of the spring is pressed in a circular concave hole in the center of the upper end surface of the valve core (2), and a pressing plate (13) is arranged between the upper end of the spring (12) and the lower end of the adjusting screw rod (14); an inner cavity of the valve body (1) above the outlet channel is matched with an outer cylindrical surface of the valve core (2) to form a piston type structure, the diameter of the inner cavity of the valve body (1) between the outlet channel and a sealing surface of a valve seat is larger than that of the outer cylindrical surface of the valve core (2), and the valve core (2) has an axial moving space in the inner cavity of the valve body (1); a vent hole is arranged between the inlet channel and the outlet channel, and a check valve is arranged between the outlet channel and the air outlet.
2. The ash conveying system energy-saving valve of claim 1, wherein: the centers of the adjusting screw rod (14) and the pressing plate (13) are provided with axial through holes.
3. The ash conveying system energy-saving valve of claim 2, wherein: and a flow regulating needle is arranged in the vent hole.
4. The ash conveying system energy saving valve of claim 3, wherein: the inner cavity of the valve body (1) is provided with a large-diameter piston cavity and a small-diameter piston cavity, and the outer cylindrical surface of the valve core (2) is provided with a large-diameter cylinder and a small-diameter cylinder which are in dynamic sealing fit with the large-diameter piston cavity and the small-diameter piston cavity.
5. The ash conveying system energy-saving valve as claimed in claim 1, 2, 3 or 4, wherein: the check valve is composed of a side cover (7), a ball body (4), a compression spring (6) and a sealing seat (3), wherein the side cover (7) is fixedly installed on the end surface of an outlet channel of the valve body (1) through a screw (5), the sealing seat (3) is installed at an outlet channel opening, the ball body (4) is compressed through the compression spring (6) installed in the inner cavity of the side cover (7) and is matched with a spherical sealing surface of the sealing seat (3) to form a sealing pair, and a ball body (4) positioning device is arranged in the inner cavity of the side cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222729763.2U CN218207983U (en) | 2022-10-18 | 2022-10-18 | Energy-saving valve of ash conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222729763.2U CN218207983U (en) | 2022-10-18 | 2022-10-18 | Energy-saving valve of ash conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218207983U true CN218207983U (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222729763.2U Active CN218207983U (en) | 2022-10-18 | 2022-10-18 | Energy-saving valve of ash conveying system |
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| Country | Link |
|---|---|
| CN (1) | CN218207983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117284774A (en) * | 2023-10-09 | 2023-12-26 | 无锡市伍豪机械设备有限公司 | Energy-saving pneumatic conveying valve |
| WO2024146352A1 (en) * | 2023-08-21 | 2024-07-11 | 中广核工程有限公司 | Pressure control valve capable of replacement |
-
2022
- 2022-10-18 CN CN202222729763.2U patent/CN218207983U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024146352A1 (en) * | 2023-08-21 | 2024-07-11 | 中广核工程有限公司 | Pressure control valve capable of replacement |
| CN117284774A (en) * | 2023-10-09 | 2023-12-26 | 无锡市伍豪机械设备有限公司 | Energy-saving pneumatic conveying valve |
| CN117284774B (en) * | 2023-10-09 | 2024-07-23 | 无锡市伍豪机械设备有限公司 | Energy-saving pneumatic conveying valve |
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