CN218871482U

CN218871482U - Built-in needle valve filter

Info

Publication number: CN218871482U
Application number: CN202223473600.9U
Authority: CN
Inventors: 李通进
Original assignee: Hyou Shanghai Intelligent Technology Co ltd
Current assignee: Hyou Shanghai Intelligent Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-18
Anticipated expiration: 2032-12-26

Abstract

The application discloses built-in needle valve filter, including a needle valve body and a filtering component, filtering component includes a filter screen and a filter core, the filter screen be connected in the needle valve body, the filter core be installed in the filter screen, the filter screen for the filter core rotates, in order to clear away impurity on the filter core. The utility model discloses it is little with the back pressure loss of media filtration before the media filtration to have to the effect that can accurate regulated flow.

Description

Built-in needle valve filter

Technical Field

The utility model belongs to the technical field of a needle valve is made and specifically relates to a built-in needle valve filter.

Background

The hydraulic control valve is a general name, and is an automatic control valve formed by combining a main valve and a needle valve and a one-way valve which are arranged outside the main valve. The hydraulic control valve is in a normal state, a normally open state and a floating state, and the water flow state is controlled mainly by adjusting the main valve and the needle valve or the pilot valve.

The hydraulic control valve controls the movement of the valve core by utilizing the pressure difference of the upper valve cavity and the lower valve cavity of the valve. The pilot valve of various not isostructures of collocation is getting through the valve body on, the pressure drainage mouth links down, makes up into different serial valve kind, carries out fine control just need to take the regulating flow to upper and lower cavity pressure, and the medium that gets simultaneously and press the drainage mouthful play must be impurity-free, reduces pressure differential.

The needle valve is a trim valve whose valve plug is of a needle type and is mainly used to regulate the flow rate of gas. The needle valve plug can realize the function of continuously and finely adjusting from closing to opening. The pin valve plug is typically formed by a long pin of hardened steel, and the valve seat is supported by a soft material such as tin or copper. The sealing between the valve needle and the valve seat is achieved by the close fit of the conical surfaces of the valve needle and the valve seat. The sealing between the valve rod and the valve seat is realized by a corrugated pipe.

At present, in order to ensure the purity of a medium, a filter is externally arranged on a needle valve in the market, but when the needle valve is used, the pressure loss before and after the medium filtration is large, so that the precise control is difficult in a small range during the precision adjustment.

SUMMERY OF THE UTILITY MODEL

An advantage of the utility model is that a built-in needle valve filter is provided, include:

a needle valve body; and

a filter assembly, filter assembly includes a filter screen and a filter core, the filter screen be connected in the needle valve body, the filter core be installed in the filter screen, the filter screen for the filter core rotates, in order to clear away impurity on the filter core.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, filtering component are installed in the needle valve body to for built-in filtering component, the medium is behind the needle valve body, filters the back through filtering component, and impurity in the medium is filtered, has improved the purity behind the medium entering pipeline. And the filter screen rotates for the filter core, can realize filtering component's automatically cleaning.

According to the utility model discloses an embodiment, the needle valve body includes a valve body, a valve rod and a disk seat, the valve rod by movably install in the valve body, the disk seat be installed in the valve body, disk seat and valve body intercommunication, the filter screen with the filter core is installed in the disk seat.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the needle valve body includes valve body, valve rod and disk seat, and valve body and disk seat are connected, and the valve rod is installed on the valve body to the break-make of valve body and disk seat can be controlled to the valve rod.

According to the utility model discloses an embodiment, the valve body has a first inflow and a first outflow, first inflow with first outflow intercommunication, the valve rod is movably installed in first inflow with first outflow junction to block or communicate first inflow with first outflow.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the medium flows in from first influent stream mouth, flows out from first effluent stream mouth, and the break-make of first influent stream mouth and first effluent stream mouth can be controlled to the valve rod, realizes the velocity of flow and the flow of accurate control medium.

According to an embodiment of the present invention, the cross-sectional shape of the first inlet and the first outlet is L-shaped.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the cross-section of first influent stream mouth and first outfall is L shape, and the valve rod is installed in the corner of first influent stream mouth and first outfall. This arrangement facilitates control of the flow rate and quantity of the medium.

According to the utility model discloses an embodiment, the disk seat has a second influent stream mouth and a second outfall, the second influent stream mouth with first outfall intercommunication.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the medium flows in from first inflow opening, flows out from first outflowing port, flows in from the second inflow opening again, flows out from the second outflowing port, at last through filtering component's filtration.

According to the utility model discloses an embodiment, the cross sectional area of second influent stream mouth is less than the cross sectional area of second effluent stream mouth.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the cross sectional area of second influent stream mouth is less than the cross sectional area of second effluent stream mouth, and the valve rod is located the second influent stream mouth, when the valve rod removes, can control the cross sectional area of second influent stream mouth to the velocity of flow and the flow of control medium.

According to the utility model discloses an embodiment, the valve rod is the toper needle bar.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the valve rod is the toper needle bar, and the toper needle bar is located the second inlet, relies on the screw thread up-and-down motion, and control valve rod is in the cross sectional area of disk seat, control regulation flow that can be accurate.

According to the utility model discloses an embodiment, built-in needle valve filter still includes a removal unit, removal unit install in the filter core with the filter screen.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter still includes a dismantlement subassembly, and the dismantlement subassembly is used for dismantling filter screen and filter core, and the operating personnel of being convenient for changes filter screen and filter core.

According to the utility model discloses an embodiment, a dismantlement subassembly installation piece and a mounting groove, the installation piece installed in the filter core, the mounting groove seted up with the needle valve body.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the dismantlement subassembly is including installation piece and mounting groove, and the installation piece is installed at filter screen and filter core, and the mounting groove is seted up at the disk seat, through the cooperation of installation piece and mounting groove, dismantles filter screen and filter core or installs.

According to the utility model discloses an embodiment, the installation piece includes a turning block and an at least joint piece, the joint piece be installed in the turning block.

For reaching the utility model discloses above at least one advantage, the utility model provides a built-in needle valve filter, the turning block drives the joint piece and rotates together at the mounting groove internal rotation, and after rotating predetermined angle, the turning block can't rotate, fixes filter screen and filter core in current position.

Drawings

Fig. 1 shows the overall structure of the present invention.

Fig. 2 shows the overall structure of the present invention in a cross-sectional view.

Fig. 3 shows a cross-sectional view of the overall structure of the present invention showing the flow direction of the medium.

Fig. 4 shows a schematic structural diagram of the valve body of the present invention.

Fig. 5 shows a schematic structural diagram of the valve seat of the present invention.

Fig. 6 shows the structure diagram of the present invention for showing the disassembling component.

And (3) appendage marking: 10. a needle valve body; 11. a valve body; 1101. a first inlet; 1102. a first outlet port; 12. a valve stem; 13. a valve seat; 1301. a second inlet; 1302. a second outlet; 20. a filter assembly; 21. a filter screen; 22. a filter element; 30. disassembling the assembly; 31. mounting a block; 311. rotating the block; 312. a clamping block; 32. mounting grooves; 321. a slot; 322. the groove is rotated.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning "at least one" or "one or more," i.e., that a quantity of one element may be one in one embodiment, while a quantity of another element may be plural in other embodiments, and the terms "a" and "an" should not be interpreted as limiting the quantity.

Referring to fig. 1 to 6, an inner needle valve filter according to a preferred embodiment of the present invention will be described in detail below, and the inner needle valve filter includes a needle valve body 10 and a filter assembly 20, and the filter assembly 20 is mounted to the needle valve body 10. After the media flows to the needle valve body 10, impurities in the media are removed by the filter assembly 20.

When the medium enters the needle valve body 10, the medium enters the filter assembly 20, and impurities in the medium are filtered under the action of the filter assembly 20, so that the filtered medium passes through a pipeline connected to the needle valve body 10, and the medium entering the pipeline is free of impurities. By the arrangement, compared with the external filtering component 20, the required material is reduced, and the purpose of energy conservation is achieved.

Specifically, the needle valve body 10 includes a valve body 11, a valve stem 12, and a valve seat 13, the valve body 11 has a first inlet 1101 and a first outlet 1102, the inlets and the outlets communicate with each other, and the cross-sectional shape is L-shaped; a valve stem 12 is movably mounted on the valve body 11, and the valve stem 12 can control the opening and closing of the inlet and the outlet. It is worth mentioning that the valve stem 12 is a conical needle rod, and in this embodiment, the valve stem 12 is connected to the valve body 11 by a threaded mounting.

The valve seat 13 is mounted on the valve body 11, the valve seat 13 has a second inlet 1301 and a second outlet 1302, the cross-sectional area of the second inlet 1301 is smaller than that of the second outlet 1302, and the maximum cross-sectional area of the stem of the valve stem 12 is larger than that of the second inlet 1301. The second inlet 1301 is connected to the first outlet 1102, and a needle bar of the valve stem 12 is installed at a connection between the first outlet 1102 and the second inlet 1301 to block or communicate the connection between the first outlet 1102 and the second inlet 1301.

That is, when the stem 12 moves and the stem 12 moves away from the valve seat 13, the first outlet 1102 communicates with the second inlet 1301, and the medium can be discharged from the second outlet 1302 after entering from the first inlet 1101; when the valve rod 12 moves to a side close to the valve seat 13, the first outflow port 1102 and the second inflow port 1301 are closed, and the medium cannot flow from the first inflow port 1101 to the first outflow port 1102.

With such an arrangement, since the needle rod of the valve rod 12 is tapered, the taper of the needle rod of the valve rod 12 is small, which facilitates accurate flow adjustment, and when the valve rod 12 moves, the tapered needle rod moves relative to the second inlet 1301, which can accurately control the flow cross-sectional areas of the first outlet 1102 and the second inlet 1301.

Specifically, the filter assembly 20 is mounted to the second outflow port 1302 of the valve seat 13 and is in communication with the second outflow port 1302. When the medium flows out from the second outflow port 1302 after entering from the first inflow port 1101, the impurities in the medium are filtered by the filter assembly 20 through the filtering of the filter assembly 20, and the pressure loss before and after the medium is filtered can be ensured to be small.

The filter assembly 20 includes a filter screen 21 and a filter element 22, wherein the filter element 22 is mounted on the valve seat 13, the filter screen 21 is sleeved outside the filter element 22, and the filter screen 21 is rotatably disposed relative to the filter element 22. Set up like this, receive the influence of medium velocity of flow when filter core 22, filter screen 21 rotates for the outer wall of filter core 22 for impurity can not adsorb on filter core 22, thereby reaches the effect of automatically cleaning.

In this embodiment, the filter 22 is fixedly connected to the valve seat 13, and when the filter screen 21 rotates, the filter 22 is fixed, and the filter screen 21 can prevent impurities from being adsorbed on the filter 22. With the arrangement, when the impurity particles are attached to the filter screen 21, the filter screen 21 is a circumferential surface, and because the flowing direction of the medium in the pipeline is not fixed, when the fluid direction of the medium is opposite to the impurity particles, the impurity particles attached to the outer surface of the filter screen 21 can be washed away, and the effect of back washing is achieved.

In another embodiment, the cartridge 22 is removably mounted to the valve seat 13. The outer wall of the filter element 22 is provided with an external thread, the inner wall of the valve seat 13 is provided with an internal thread matched with the fish external thread, and the filter element 22 is connected with the valve seat 13 through the external thread and the internal thread. With this arrangement, when the filter cartridge 22 is damaged or needs to be replaced after a long period of use, an operator can remove the filter cartridge 22 from the valve seat 13 by screwing, and replace the filter cartridge 22 with a new one.

In another embodiment, a removal assembly 30 is disposed between the filter cartridge 22 and the valve seat 13, and the removal assembly 30 includes a mounting block 31 and a mounting groove 32 adapted to the mounting block 31. Specifically, the mounting block 31 includes a rotating block 311 and at least one clamping block 312, the clamping block 312 is fixedly mounted on the rotating block 311, and in this embodiment, two clamping blocks 312 are provided. A through hole is formed in the mounting block 31, the mounting block 31 is sleeved on the filter element 22, and the mounting groove 32 is formed in the inner wall of the valve seat 13.

The mounting groove 32 includes at least one slot 321 and at least one rotating groove 322, wherein the size and number of the slot 321 are the same as those of the clamping block 312, the slot 321 is communicated with the rotating groove 322, and the cross-sectional shapes of the slot 321 and the rotating groove 322 are L-shaped. When the mounting block 31 is inserted into the mounting groove 32, the engaging block 312 enters from the insertion groove 321, then enters the rotating groove 322, and rotates by a predetermined angle to fix the current position of the mounting block 31. That is, the current position of the filter cartridge 22 is fixed. On the contrary, when the filter element 22 is disassembled, the filter element 22 is rotated, the filter element 22 drives the mounting block 31 to rotate together, after the filter element 22 is pulled out after the filter element 22 is rotated by a preset angle, the clamping block 312 of the mounting block 31 is pulled out from the slot 321, and the filter element 22 can be disassembled. With this arrangement, when the filter cartridge 22 is damaged or needs to be replaced after a long period of use, the operator can remove the filter cartridge 22 from the valve seat 13 by screwing, and replace the new filter cartridge 22.

In summary, the needle valve body 10 is provided with the filter assembly 20, the medium flows into the pipeline through the needle valve body 10, and under the action of the filter assembly 20, impurities in the medium can be removed, so that the purity of the medium flowing into the pipeline is ensured. And the filter assembly 20 is implemented as an internal filter assembly, compared with the external filter assembly 20, the pressure loss before and after the medium filtration can be reduced, and the flow rate of the medium is ensured.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The advantages of the present invention are already complete and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A filter with a built-in needle valve, comprising:

a needle valve body; and

a filter assembly, filter assembly includes a filter screen and a filter core, the filter screen be connected in the needle valve body, the filter core is installed in the filter screen, the filter screen for the filter core rotates, in order to clear away impurity on the filter core.

2. The on-board needle valve filter of claim 1, wherein: the needle valve body includes a valve body, a valve rod and a disk seat, the valve rod movably install in the valve body, the disk seat is installed in the valve body, disk seat and valve body intercommunication, the filter screen with the filter core is installed in the disk seat.

3. The on-board needle valve filter according to claim 2, wherein: the valve body is provided with a first inlet and a first outlet, the first inlet is communicated with the first outlet, and the valve rod is movably arranged at the joint of the first inlet and the first outlet so as to block or communicate the first inlet and the first outlet.

4. The on-board needle valve filter of claim 3, wherein: the cross-sectional shapes of the first inlet and the first outlet are L-shaped.

5. The on-board needle valve filter of claim 4, wherein: the valve seat is provided with a second inlet and a second outlet, and the second inlet is communicated with the first outlet.

6. The on-board needle valve filter according to claim 5, wherein: the cross-sectional area of the second inlet is smaller than that of the second outlet.

7. The on-board needle valve filter according to claim 6, wherein: the valve rod is a conical needle rod.

8. The on-board needle valve filter of claim 1, wherein: the built-in needle valve filter also comprises a disassembling component, and the disassembling component is arranged on the filter element and the filter screen.

9. The on-board needle valve filter according to claim 8, wherein: the needle valve comprises a needle valve body, a disassembly assembly, a filter element, a mounting block and a mounting groove, wherein the disassembly assembly comprises the mounting block and the mounting groove, the mounting block is mounted on the filter element, and the mounting groove is formed in the needle valve body.

10. The needle inline valve filter of claim 9, wherein: the mounting block comprises a rotating block and at least one clamping block, and the clamping block is mounted on the rotating block.