CN209800753U - Low-noise anti-cavitation structure regulating valve - Google Patents
Low-noise anti-cavitation structure regulating valve Download PDFInfo
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- CN209800753U CN209800753U CN201920176330.4U CN201920176330U CN209800753U CN 209800753 U CN209800753 U CN 209800753U CN 201920176330 U CN201920176330 U CN 201920176330U CN 209800753 U CN209800753 U CN 209800753U
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Abstract
The utility model belongs to the technical field of the valve, concretely relates to low noise anti-cavitation structure governing valve, its characterized in that includes valve body, multistage sleeve subassembly, case, valve rod subassembly, valve gap and the actuating mechanism of making an uproar that falls. The utility model discloses set up multistage sleeve subassembly of making an uproar that falls, fallen the production of making an uproar effectively preventing cavitation through multistage step-down to effectively reduce the noise that the medium flows through the production, reach the required noise level requirement of site work condition, solved the problem of the internal low noise anti-cavitation that can't satisfy with conventional sleeve governing valve.
Description
Technical Field
The utility model belongs to the technical field of the valve, concretely relates to low noise anti-cavitation structure governing valve.
Background
The pneumatic regulating valve is matched with a multi-spring actuating mechanism, and has the advantages of compact structure, light weight, sensitive action, S-streamline fluid channel, large valve capacity, accurate flow characteristic, convenient assembly and disassembly and the like. The method is widely applied to accurately control media such as gas, liquid, steam and the like, and technological parameters such as pressure, flow, temperature and liquid level are kept at given values. The valve is suitable for various working conditions by matching with different valve internal parts.
In recent years, the domestic valve industry is rapidly developed, and the product structure types of various valve manufacturers are infinite. However, the existing sleeve regulating valve in China has no good solution for the working conditions of high pressure difference and easy cavitation, phenomena such as cavitation and the like are easy to occur on site, so that the regulating precision and the service performance of the regulating valve are influenced by valve vibration, and the noise generated when the medium flows through cannot be reduced, so that the noise level requirement required on site cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to compensate for the defects of the prior art, the utility model provides a technical scheme of low noise anti-cavitation structure governing valve.
The low-noise anti-cavitation structure regulating valve is characterized by comprising a valve body, a multi-stage noise reduction sleeve component, a valve core, a valve rod component, a valve cover and an actuating mechanism, wherein a left inflow channel and a right inflow channel are respectively arranged on the left side and the right side of the valve body, the left inflow channel is positioned at the upper end of the right inflow channel, a first middle inflow port for communicating the left inflow channel and the right inflow channel is arranged between the left inflow channel and the right inflow channel, a second middle inflow port is arranged at the upper end of the left inflow channel, the multi-stage noise reduction sleeve component is arranged between the first middle inflow port and the second middle inflow port, the multi-stage noise reduction sleeve component comprises a lower sleeve inserted on the first middle inflow port, a first upper sleeve inserted on the second middle inflow port, a connecting sleeve arranged at the upper end of the first upper sleeve and a second upper sleeve inserted in the lower sleeve, the upper end of the second upper sleeve is inserted in the connecting sleeve, sleeve through-hole on the second is seted up at telescopic middle part on the second, sets up a set of first sleeve through-hole on the first sleeve, sets up a set of lower sleeve through-hole on the lower sleeve, and valve gap fixed connection is in the valve body upper end, and valve rod assembly pegs graft in the valve gap, and valve rod assembly's lower extreme and the cooperation of sleeve are connected on the second, and actuating mechanism sets up the upper end at valve rod assembly.
The low-noise anti-cavitation structure regulating valve is characterized in that the valve rod assembly comprises a valve rod inserted in the valve cover, a valve core fixedly connected to the lower end of the valve rod, and a push rod fixedly connected to the upper end of the valve rod, the valve core is slidably connected into the second upper sleeve, and the push rod is connected with the actuating mechanism in a matched mode.
The low-noise anti-cavitation structure regulating valve is characterized in that the actuating mechanism comprises an upper membrane cover, a lower membrane cover, a membrane arranged between the two membrane covers, a tray arranged on the membrane and a spring arranged between the tray and the upper membrane cover, and a push rod is fixedly connected with the tray.
The low-noise anti-cavitation structure regulating valve is characterized in that the through holes of the first upper sleeve are distributed on the first upper sleeve in an annular array shape.
The low-noise anti-cavitation structure regulating valve is characterized in that the lower sleeve is of a U-shaped sleeve structure.
the low-noise anti-cavitation structure regulating valve is characterized in that the through holes of the lower sleeve are distributed on the side wall and the bottom of the lower sleeve in an annular array shape.
The utility model discloses set up multistage sleeve subassembly of making an uproar that falls, fallen the production of making an uproar effectively preventing cavitation through multistage step-down to effectively reduce the noise that the medium flows through the production, reach the required noise level requirement of site work condition, solved the problem of the internal low noise anti-cavitation that can't satisfy with conventional sleeve governing valve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is the structural schematic diagram of the multi-stage noise reduction sleeve assembly of the present invention.
In the figure: the multi-stage noise reduction valve comprises a valve body 1, a left inlet channel 100, a right inlet channel 101, a first middle inlet port 102, a second middle inlet port 103, a multi-stage noise reduction sleeve assembly 2, a lower sleeve 200, a lower sleeve through hole 2000, a first upper sleeve 201, a first upper sleeve through hole 2010, a first upper sleeve through hole 202, a second upper sleeve 203, a second upper sleeve 2030, a second upper sleeve through hole 3, a valve rod 4, a valve cover 6, a diaphragm 7, a spring 8, a tray 8, a valve core 9, a push rod 10, an upper film cover 11 and a lower film cover 12.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the low-noise anti-cavitation structure regulating valve comprises a valve body 1, a multi-stage noise reduction sleeve assembly 2, a valve rod assembly, a valve cover 4 and an actuating mechanism. The left side and the right side of the valve body 1 are respectively provided with a left inlet channel 100 and a right inlet channel 101, the left inlet channel 100 is positioned at the upper end of the right inlet channel 101, a first middle inlet 102 which enables the left inlet channel 100 and the right inlet channel 101 to be communicated is arranged between the left inlet channel 100 and the right inlet channel 101, and a second middle inlet 103 is arranged at the upper end of the left inlet channel 100.
The multistage noise reduction sleeve assembly 2 is arranged between a first middle inlet 102 and a second middle inlet 103, the multistage noise reduction sleeve assembly 2 comprises a lower sleeve 200 inserted on the first middle inlet 102, a first upper sleeve 201 inserted on the second middle inlet 103, a connecting sleeve 202 arranged at the upper end of the first upper sleeve 201 and a second upper sleeve 203 arranged at the lower end of the lower sleeve 200, the upper end of the second upper sleeve 203 is inserted in the connecting sleeve 202, a second upper sleeve through hole 2030 is formed in the middle of the second upper sleeve 203, a group of first upper sleeve through holes 2010 are formed in the first upper sleeve 201, and a group of lower sleeve through holes 2000 are formed in the lower sleeve 200. Specifically, the first upper sleeve through holes 2010 are distributed in a ring array on the first upper sleeve 201. The lower sleeve 200 is a U-shaped tube structure, and the lower sleeve through holes 2000 are distributed in an annular array on the side wall and the bottom of the lower sleeve 200.
The valve cover 4 is fixedly connected with the upper end of the valve body 1. The valve rod component is inserted in the valve cover 4. The lower end of the valve rod assembly is matched and connected with the second upper sleeve 203, and the actuating mechanism is arranged at the upper end of the valve rod assembly. Specifically, the valve rod assembly comprises a valve rod 3 inserted in the valve cover 4, a valve core 9 fixedly connected to the lower end of the valve rod 3, and a push rod 10 fixedly connected to the upper end of the valve rod 3, the valve core 9 is slidably connected in the second upper sleeve 203, when the valve core 9 moves to a downward limit position, the valve core 9 blocks the second upper sleeve through hole 2030, and the push rod 10 is connected with the actuating mechanism in a matched manner. The actuating mechanism comprises an upper membrane cover 11, a lower membrane cover 12, a membrane 6 arranged between the two membrane covers, a tray 8 arranged on the membrane 6 and a spring 7 arranged between the tray 8 and the upper membrane cover 11, and a push rod 10 is fixedly connected with the tray 8.
When the valve core 9 moves, the actuator receives an external (positioner) control signal and enters a lower cavity between the diaphragm 6 and the lower diaphragm cover 12 through a signal interface, a pressure signal generates an acting force on the diaphragm 6 with an effective area, the force is rigidly transmitted to the push rod 10 through the tray 7 on the diaphragm 6, the push rod 10 generates displacement to drive the valve core 9 to move, the corresponding displacement is generated with the second upper sleeve 203, the larger the signal pressure is, the larger the thrust force is, the larger the relative displacement between the valve core 9 and the second upper sleeve 203 is, and the smaller the signal pressure is. When the push rod 10 moves upwards, the tray 8 compresses the spring 7 with large elasticity, and when the thrust of the tray 8 and the reaction force of the spring 7 are balanced, the valve core 9 stays at a certain position, so that a certain pressure signal corresponds to a certain valve opening degree, and the flow of a medium entering the valve body 1 is ensured to meet the requirement.
The utility model has the characteristics that the valve rod adopts multistage step-down to fall the structure of making an uproar, and multistage sleeve step-down falls and makes an uproar, effectively reduces the decompression and falls and make an uproar and prevent the cavitation to effectively reduce the valve vibrations, prevent that the valve inner part is because of vibrations not hard up lead to the valve regulation precision to reduce, life subtracts the weak point, damages valve internals even and leads to the phenomenon of valve direct damage.
Claims (6)
1. The utility model provides a low noise anti-cavitation structure governing valve, its characterized in that includes valve body (1), multistage sleeve subassembly (2) of making an uproar, the valve rod subassembly, valve gap (4) and actuating mechanism fall, left side inlet channel (100) and right inlet channel (101) are seted up respectively to the left and right sides of valve body (1), left side inlet channel (100) are located the upper end of right inlet channel (101), be equipped with between left side inlet channel (100) and right inlet channel (101) and make first middle inlet (102) that both communicate, inlet (103) are in the middle of the left side inlet channel (100) upper end is equipped with the second, multistage sleeve subassembly (2) of making an uproar fall sets up between inlet (102) in the middle of first and inlet (103) in the middle of the second, multistage sleeve subassembly (2) of making an uproar falls including lower sleeve (200) of pegging graft on first middle inlet (102), peg graft first upper sleeve (201) on inlet (103) in the middle of the second, The connecting sleeve (202) and the second upper sleeve (203) of lower sleeve (200) are inserted to the lower end of the connecting sleeve (202) which is arranged at the upper end of the first upper sleeve (201), the upper end of the second upper sleeve (203) is inserted into the connecting sleeve (202), the middle of the second upper sleeve (203) is provided with a second upper sleeve through hole (2030), the first upper sleeve (201) is provided with a group of first upper sleeve through holes (2010), the lower sleeve (200) is provided with a group of lower sleeve through holes (2000), the valve cover (4) is fixedly connected to the upper end of the valve body (1), the valve rod assembly is inserted into the valve cover (4), the lower end of the valve rod assembly is connected with the second upper sleeve (203) in a matched mode, and the executing mechanism is arranged at the upper end of the valve.
2. The low-noise anti-cavitation structure regulating valve according to claim 1, characterized in that the valve rod assembly comprises a valve rod (3) inserted in the valve cover (4), a valve core (9) fixedly connected to the lower end of the valve rod (3), and a push rod (10) fixedly connected to the upper end of the valve rod (3), wherein the valve core (9) is slidably connected in the second upper sleeve (203), and the push rod (10) is connected with an actuating mechanism in a matching manner.
3. The low-noise anti-cavitation structure adjusting valve according to claim 2, characterized in that the actuator comprises an upper membrane cover (11), a lower membrane cover (12), a membrane (6) arranged between the two membrane covers, a tray (8) arranged on the membrane (6), and a spring (7) arranged between the tray (8) and the upper membrane cover (11), and the push rod (10) is fixedly connected with the tray (8).
4. The low-noise anti-cavitation structural regulating valve according to claim 1, wherein the first upper sleeve through holes (2010) are distributed in an annular array on the first upper sleeve (201).
5. The low noise cavitation prevention structure adjustment valve as claimed in claim 1, wherein the lower sleeve (200) is a U-shaped cylindrical structure.
6. The low-noise anti-cavitation structural regulating valve according to claim 5, wherein the lower sleeve through holes (2000) are distributed in an annular array on the side wall and the bottom of the lower sleeve (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920176330.4U CN209800753U (en) | 2019-01-31 | 2019-01-31 | Low-noise anti-cavitation structure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920176330.4U CN209800753U (en) | 2019-01-31 | 2019-01-31 | Low-noise anti-cavitation structure regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN209800753U true CN209800753U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920176330.4U Active CN209800753U (en) | 2019-01-31 | 2019-01-31 | Low-noise anti-cavitation structure regulating valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594437A (en) * | 2019-08-16 | 2019-12-20 | 国家能源集团宁夏煤业有限责任公司 | Valve seat and valve |
-
2019
- 2019-01-31 CN CN201920176330.4U patent/CN209800753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594437A (en) * | 2019-08-16 | 2019-12-20 | 国家能源集团宁夏煤业有限责任公司 | Valve seat and valve |
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