CN217177457U - Electric regulating valve capable of improving regulating precision - Google Patents
Electric regulating valve capable of improving regulating precision Download PDFInfo
- Publication number
- CN217177457U CN217177457U CN202220079809.8U CN202220079809U CN217177457U CN 217177457 U CN217177457 U CN 217177457U CN 202220079809 U CN202220079809 U CN 202220079809U CN 217177457 U CN217177457 U CN 217177457U
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- valve core
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Abstract
The utility model relates to the field of valves, in particular to an electric regulating valve for improving regulating precision, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged at the top of the valve cover, a valve rod arranged inside the valve cover and an electric actuating mechanism arranged at the top of the bracket and fixedly connected with the valve rod; the valve is characterized by also comprising a combined valve core arranged at the bottom of the valve rod and a combined valve seat which is arranged on the valve body and is matched with the combined valve core; the combined valve core comprises a lower valve core arranged at the bottom end of the valve rod and an upper valve core arranged on the lower valve core and contacted with the valve rod; the utility model discloses a setting of combination case, when the valve was opened to needs and small flow control was carried out, combination case carried out restriction many times to flow to improve the precision of valve to small flow control.
Description
Technical Field
The utility model relates to a valve field, concretely relates to improve electrical control valve who adjusts precision.
Background
The electric control valve is an industrial automatic control device, controls fluid by changing the flowing area of the valve, and consists of a valve and an actuator; a valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate by flowing or stopping a medium in a pipe or a device, and plays an important role in the pipe. Therefore the utility model provides an improve electrical control valve who adjusts precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the low problem of electrical control valve regulation control precision.
In order to achieve the purpose, the utility model provides an electric control valve for improving the adjustment precision, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged at the top of the valve cover, a valve rod arranged inside the valve cover and an electric actuating mechanism arranged at the top of the bracket and fixedly connected with the valve rod; the valve is characterized by also comprising a combined valve core arranged at the bottom of the valve rod and a combined valve seat which is arranged on the valve body and is matched with the combined valve core; the combined valve core comprises a lower valve core arranged at the bottom end of the valve rod and an upper valve core arranged on the lower valve core and contacted with the valve rod.
Further preferably, a cobalt-based alloy layer is welded at the bottom of the lower valve core.
Further preferably, the combined valve seat comprises a lower valve seat and an upper valve seat which are arranged on the valve body and respectively matched with the lower valve core and the upper valve core.
Further preferably, the lower valve seat and the upper valve seat are both provided with sealing rings which are in contact with the valve body.
Further preferably, the valve body is provided with a medium inlet and a medium outlet.
Further preferably, a packing is arranged between the valve cover and the valve rod; and a packing pressing plate in contact with packing is arranged at the top of the valve cover.
The utility model has the advantages that: through the arrangement of the combined valve core, when the valve needs to be opened for micro flow control, the combined valve core limits the flow for multiple times, so that the precision of the valve for micro flow control is improved;
through the arrangement of the cobalt-based alloy layer, the direct scouring of the flowing medium to the combined valve core is avoided, so that the abrasion of the combined valve core is reduced, the service life of the combined valve core is prolonged, and the control precision of the valve is improved;
through the setting of sealing washer, after last disk seat and lower disk seat were installed on the valve body, upper and lower disk seat all extrudeed the sealing washer, filled the gap between upper and lower disk seat and the valve body to improve the leakproofness between the upper and lower disk seat and the valve body of valve, improve the control accuracy of valve.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partial enlarged view of a portion a in fig. 1 according to the present invention.
The following are marked in the figure: the valve comprises a valve body 1, a medium inlet 11, a medium outlet 12, a valve cover 2, an electric actuator 3, a support 4, a valve rod 5, a combined valve core 6, a lower valve core 61, an upper valve core 62, a cobalt-based alloy layer 63, a combined valve seat 7, a lower valve seat 71, an upper valve seat 72, a sealing ring 73, a packing 8 and a packing pressing plate 9.
Detailed Description
The following description will further describe an electric control valve for improving the adjustment accuracy according to the present invention by using embodiments and with reference to the accompanying drawings.
Referring to the attached drawings 1-2, the electric regulating valve for improving the regulating precision in the present invention comprises a valve body 1, a valve cover 2 installed on the valve body 1, a bracket 4 installed on the top of the valve cover 2, a valve rod 5 installed inside the valve cover 2, and an electric actuator 3 installed on the top of the bracket 4 and fixedly connected with the valve rod 5; the valve is characterized by also comprising a combined valve core 6 which is installed at the bottom of the valve rod 5 through threaded connection and a combined valve seat 7 which is installed on the valve body 1 and is matched with the combined valve core 6; the combined valve core 6 comprises a lower valve core 61 installed at the bottom end of the valve rod 5 through threaded connection and an upper valve core 62 which is integrally formed with the lower valve core 61 and is in contact with the valve rod 5; a cobalt-based alloy layer 63 is welded at the bottom of the lower valve core 61; the utility model discloses a setting of combination case 6, when the valve was opened, the medium passed through lower valve core 61 earlier, had carried out the restriction for the first time to flow, and case 62 is gone up to the medium rethread through lower valve core 61, carries out the restriction for the second time to flow to carry out restriction many times to the flow of medium, thereby improve the control accuracy of valve to small flow.
Referring to fig. 1-2, the combined valve seat 7 of the present invention comprises a lower valve seat 71 and an upper valve seat 72, which are mounted on the valve body 1 by screw connection and respectively fit with the lower valve core 61 and the upper valve core 62; the lower valve seat 71 and the upper valve seat 72 are both provided with a sealing ring 73 which is in contact with the valve body 1; the valve body 1 is provided with a medium inlet 11 and a medium outlet 12; the lower valve seat 71 and the upper valve seat 72 are separately arranged, when one of the lower valve seat 71 or the lower valve seat 72 is seriously worn, only the valve seat which is seriously worn needs to be replaced, and the whole combined valve seat 7 does not need to be replaced, so that the cost is reduced, and the lower valve seat 71 and the upper valve seat 72 are respectively sealed with the lower valve core 61 and the upper valve core 62, so that the valve has multiple sealing, the sealing performance between the combined valve seat 7 and the combined valve core 6 is ensured, and the sealing performance of the valve is improved; through the setting of sealing washer 73, after upper valve seat 72 and lower valve seat 71 are installed on valve body 1, upper valve seat 72, lower valve seat 71 all extrude sealing washer 73, fill the gap between upper valve seat 72 and valve body 1, lower valve seat 71 and the valve body 1 respectively to improve the leakproofness between upper valve seat 72 and the valve body 1 of valve, lower valve seat 71 and the valve body 1, thereby improve the control accuracy of valve.
Referring to fig. 1-2, in the present invention, a packing 8 is installed between the valve cover 2 and the valve rod 5; a packing pressing plate 9 which is contacted with packing 8 is arranged at the top of the valve cover 2; the utility model discloses a gap between valve gap 2 and the valve rod 5 is filled in the setting of 8 fillers, guarantees the leakproofness between valve gap 2 and the valve rod 5 to avoid the valve to leak, improve valve seal nature.
Referring to the attached drawings 1-2, the working process of the present invention is that, when the valve needs to be opened, the electric actuator 3 drives the valve rod 5 to move upwards, the valve rod 5 drives the combined valve core 6 to move upwards, the lower valve core 61 is separated from the lower valve seat 71, the upper valve core 62 is separated from the upper valve seat 72, the medium inlet 11 is communicated with the medium outlet 12, the lower valve core 61 and the lower valve seat 71 control the medium flow for the first time, and the medium passing through the lower valve core 61 and the lower valve seat 71 passes through the upper valve core 62 and the upper valve seat 72 for control of the valve on the micro flow; when the valve needs to be closed, the electric actuator 3 drives the valve rod 5 to move downwards, the valve rod 5 drives the combined valve core 6 to move downwards, the combined valve core 6 is made to contact with the combined valve seat 7, and the medium inlet 11 and the medium outlet 12 are closed.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (6)
1. An electric regulating valve for improving regulating precision comprises a valve body (1), a valve cover (2) arranged on the valve body (1), a support (4) arranged at the top of the valve cover (2), a valve rod (5) arranged inside the valve cover (2) and an electric actuating mechanism (3) arranged at the top of the support (4) and fixedly connected with the valve rod (5); the valve is characterized by also comprising a combined valve core (6) arranged at the bottom of the valve rod (5) and a combined valve seat (7) which is arranged on the valve body (1) and is matched with the combined valve core (6); the combined valve core (6) comprises a lower valve core (61) arranged at the bottom end of the valve rod (5) and an upper valve core (62) arranged on the lower valve core (61) and contacted with the valve rod (5).
2. An electric control valve for improving the control accuracy according to claim 1, characterized in that: the bottom of the lower valve core (61) is welded with a cobalt-based alloy layer (63).
3. An electric control valve for improving the accuracy of adjustment according to claim 1, wherein: the combined valve seat (7) comprises a lower valve seat (71) and an upper valve seat (72) which are arranged on the valve body (1) and are respectively matched with the lower valve core (61) and the upper valve core (62).
4. An electric control valve for improving the accuracy of adjustment according to claim 3, wherein: and the lower valve seat (71) and the upper valve seat (72) are both provided with a sealing ring (73) which is in contact with the valve body (1).
5. An electric control valve for improving the accuracy of adjustment according to claim 3, wherein: the valve body (1) is provided with a medium inlet (11) and a medium outlet (12).
6. An electric control valve for improving the accuracy of adjustment according to claim 1, wherein: a filler (8) is arranged between the valve cover (2) and the valve rod (5); and a packing pressing plate (9) contacted with the packing (8) is arranged at the top of the valve cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220079809.8U CN217177457U (en) | 2022-01-13 | 2022-01-13 | Electric regulating valve capable of improving regulating precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220079809.8U CN217177457U (en) | 2022-01-13 | 2022-01-13 | Electric regulating valve capable of improving regulating precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217177457U true CN217177457U (en) | 2022-08-12 |
Family
ID=82734559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220079809.8U Active CN217177457U (en) | 2022-01-13 | 2022-01-13 | Electric regulating valve capable of improving regulating precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217177457U (en) |
-
2022
- 2022-01-13 CN CN202220079809.8U patent/CN217177457U/en active Active
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