CN221034045U

CN221034045U - Multi-stage valve core of regulating valve

Info

Publication number: CN221034045U
Application number: CN202322806007.XU
Authority: CN
Inventors: 陈宜孝; 曾庆涛
Original assignee: Suzhou Suwei Fluid Equipment Technology Co ltd
Current assignee: Suzhou Suwei Fluid Equipment Technology Co ltd
Priority date: 2023-10-19
Filing date: 2023-10-19
Publication date: 2024-05-28
Anticipated expiration: 2033-10-19

Abstract

The utility model discloses a multi-stage valve core of a regulating valve, which comprises a water outlet channel and a valve body, wherein the right end of the valve body is provided with the water outlet channel, the left end of the valve body is provided with the water inlet channel, the inside of the valve body is provided with a multi-stage valve core main body, the right end of the water outlet channel and the left end of the water inlet channel are both provided with flanges A, and when water flows through the multi-stage filtering device, a plurality of filter screens in the water inlet channel can effectively filter out solid particles such as impurities, suspended matters and sediment in the water, provide cleaner and purer water quality, reduce the abrasion and corrosion to the valve core, help to protect the regulating valve and the valve core from being damaged or blocked by the particles, ensure the smooth operation of the valve and the valve core, improve the precision, the response speed and the stability of the regulating valve, and help to prolong the service life of the device and reduce the maintenance and replacement requirements.

Description

Multi-stage valve core of regulating valve

Technical Field

The utility model belongs to the technical field of fluid control, and particularly relates to a multi-stage valve core of a regulating valve.

Background

The multistage valve core is a specially designed regulating valve structure, more accurate flow control and pressure regulation are realized by stacking a plurality of valve core units, each valve core unit corresponds to a group of control holes and sealing surfaces, medium flow is regulated by changing the sectional area of a fluid channel at different opening positions, the design purpose of the multistage valve core is to improve the regulating performance and precision of the valve, the control precision and range can be improved by a grading method due to the plurality of valve core units, each valve core unit is responsible for controlling a part of flow, the accurate control of the whole flow is realized by linkage regulation, meanwhile, the multistage valve core can also provide better sealing performance and compression resistance, and the multistage valve core is widely applied to the fields of industrial automation, flow control systems, hydraulic systems, pneumatic systems and the like.

However, because of the high impurity content in the water, the impurities, suspended matters and solid particles in the water easily enter the valve core of the regulating valve, and the impurities may block the passage of the valve core, affect the normal operation of the valve, obstruct the regulation of the flow, and cause the instability of the flow, and the excessive impurities and particles also cause abrasion and corrosion on the surface of the valve core or the valve seat part, which may cause the leakage, leakage or failure of the valve, affect the normal operation of the work, the abrasion and corrosion also reduce the service life of the valve core, increase the maintenance and replacement cost, and other components are also easily affected by pollution and blockage, require more frequent maintenance and cleaning, and increase the maintenance workload and cost.

Disclosure of utility model

The utility model aims to provide a multistage valve core of a regulating valve, which solves the problems that impurities, suspended matters and solid particles in water, which are proposed in the background art, easily enter the valve core of the regulating valve, and the impurities possibly block the channel of the valve core, influence the normal operation of the valve and obstruct the regulation of flow.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a regulating valve multistage case, includes play water course and valve body, the valve body right-hand member is provided with out the water course, the valve body left end is provided with the inlet channel, the inside multistage case main part that is provided with of valve body, it all is provided with flange A to go out water course right-hand member and inlet channel left end, inlet channel left end is through flange A and a plurality of screw fixation multistage filter equipment;

The multistage filtering device comprises a flange B, a filter screen, a tetragonal filter cartridge and a flange C, wherein the flange C is fixedly connected with the flange A through a plurality of screws, the tetragonal filter cartridge is arranged on the outer wall of the left end of the flange C, the flange B is arranged on the outer wall of the left end of the tetragonal filter cartridge, and a plurality of filter screens are arranged at the inner center of the tetragonal filter cartridge at equal intervals.

Preferably, the multistage filtering device further comprises a sealing plate, a sealing pad and a cleaning opening, the cleaning opening is formed in the center of the bottom of the tetragonal filter cartridge, the sealing plate is arranged outside the bottom end of the cleaning opening, the sealing pad is stuck on the outer wall of the top end of the sealing plate, the sealing pad is attached to the outer wall of the bottom of the tetragonal filter cartridge, and meanwhile the sealing plate is fixedly connected with the tetragonal filter cartridge through a plurality of screws.

Preferably, the valve body upper end is provided with the disk seat, and valve body and disk seat pass through screw fixed connection, the inside center department of disk seat is provided with the valve rod perpendicularly, and valve rod bottom and multistage case main part fixed connection.

Preferably, the multi-stage valve core main body is composed of a primary valve core, a secondary valve core and a tertiary valve core, the tertiary valve core is arranged at the bottom end of the valve rod, the secondary valve core is arranged at the bottom end of the tertiary valve core, the primary valve core is arranged at the bottom end of the secondary valve core, and the diameters of the primary valve core, the secondary valve core and the tertiary valve core are sequentially reduced.

Preferably, the sizes of the filter screen meshes are gradually decreased from left to right, the filter screen is positioned on the upper side of the cleaning opening, the cross section shapes of the sealing plate and the cleaning opening are the same, and the length and the width of the cross section of the sealing plate are larger than those of the cross section of the cleaning opening.

Compared with the prior art, the utility model provides the regulating valve multi-stage valve core, which has the following beneficial effects:

According to the utility model, the novel multi-stage filtering device is added on the outer wall of the left end of the water inlet channel of the regulating valve, so that when water flows through the multi-stage filtering device, a plurality of filter screens in the multi-stage filtering device can effectively filter out solid particles such as impurities, suspended matters, sediment and the like in the water, cleaner and purer water quality is provided, abrasion and corrosion to the valve core are reduced, the regulating valve and the valve core are protected from being damaged or blocked by the particles, smooth operation of the valve and the valve core is ensured, the precision, the response speed and the stability of the regulating valve are improved, the service life of equipment is prolonged, and the maintenance and replacement requirements are reduced.

Drawings

FIG. 1 is a schematic diagram of a multi-stage valve core structure of an adjusting valve according to the present utility model.

FIG. 2 is a schematic diagram of the main structure of the multi-stage valve core of the present utility model.

Fig. 3 is a schematic view of a multi-stage filtration device according to the present utility model.

In the figure: 1. a flange A; 2. a water outlet channel; 3. a valve body; 4. a multi-stage spool body; 5. a water inlet channel; 6. a multi-stage filtration device; 7. a valve stem; 8. a valve seat; 9. a primary valve core; 10. a secondary valve core; 11. a three-stage valve core; 12. a flange B; 13. sealing plate; 14. a sealing gasket; 15. a filter screen; 16. clearing the mouth; 17. a tetragonal filter cartridge; 18. and a flange C.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a regulating valve multistage valve core as shown in figures 1-3, which comprises a water outlet channel 2 and a valve body 3, wherein the right end of the valve body 3 is provided with the water outlet channel 2, the left end of the valve body 3 is provided with a water inlet channel 5, the inside of the valve body 3 is provided with a multistage valve core main body 4, the right end of the water outlet channel 2 and the left end of the water inlet channel 5 are both provided with a flange A1, the left end of the water inlet channel 5 is fixedly provided with a multistage filtering device 6 through the flange A1 and a plurality of screws, the upper end of the valve body 3 is provided with a valve seat 8, the valve body 3 and the valve seat 8 are fixedly connected through screws, the center of the inside of the valve seat 8 is vertically provided with a valve rod 7, the bottom of the valve rod 7 is fixedly connected with the multistage valve core main body 4, the multistage valve core main body 4 consists of a first-stage valve core 9, a second-stage valve core 10 and a third-stage valve core 11, the third-stage valve core 11 is arranged at the bottom of the valve rod 7, the second-stage valve core 10 is provided with the first-stage valve core 9, the diameters of the primary valve core 9, the secondary valve core 10 and the tertiary valve core 11 are sequentially reduced, the multistage filtering device 6 is firstly arranged on the flange A1 at the left end of the water inlet channel 5 and firmly fixed through screws, the regulating valve multistage valve core is arranged in the valve body 3, the bottom of the multistage valve core main body 4 is fixedly connected with the valve rod 7, the fact that the primary valve core 9, the secondary valve core 10 and the tertiary valve core 11 are correctly assembled together according to the sequentially reduced diameters is ensured, the tertiary valve core 11 is positioned at the bottom end of the valve rod 7, then a water outlet pipeline is firmly connected with the flange A1 at the right end of the water outlet channel 2 through screws and flanges, the multistage filtering device 6 is connected with a water supply pipeline, the valve body 3 and the valve seat 8 are fixedly connected through screws, the fact that the valve rod 7 vertically arranged at the center inside the valve seat 8 is firmly connected with the bottom of the multistage valve core main body 4 is ensured, then the knob at the top end of the valve rod 7 is manually rotated to change the position of the valve core, so that the flow rate of water is regulated, and when the outer wall of the multi-stage valve core main body 4 is tightly attached to the groove near the bottom end inside the valve body 3, the water flow is closed.

As shown in fig. 1 and 3, the multistage filtering device 6 comprises a flange B12, a filter screen 15, a tetragonal filter cartridge 17 and a flange C18, wherein the flange C18 is fixedly connected with the flange A1 through a plurality of screws, the tetragonal filter cartridge 17 is arranged on the outer wall of the left end of the flange C18, the flange B12 is arranged on the outer wall of the left end of the tetragonal filter cartridge 17, a plurality of filter screens 15 are equidistantly arranged at the center of the inside of the tetragonal filter cartridge 17, the multistage filtering device 6 also comprises a sealing plate 13, a sealing pad 14 and a cleaning opening 16, the cleaning opening 16 is arranged at the center of the bottom of the tetragonal filter cartridge 17, the sealing plate 13 is stuck on the outer wall of the top end of the sealing plate 13, the sealing pad 14 is stuck on the outer wall of the bottom of the tetragonal filter cartridge 17, the sealing plate 13 is fixedly connected with the tetragonal filter cartridge 17 through a plurality of screws, the mesh sizes of the plurality of filter screens 15 are sequentially decreased from left to right, the filter screen 15 is positioned on the upper side of the cleaning opening 16, the cross section shapes of the sealing plate 13 and the cleaning opening 16 are the same, the cross section length and width of the sealing plate 13 are larger than the cross section length and width of the cleaning opening 16, the flange C18 and the flange A1 are firmly connected by a plurality of screws to ensure the sealing of the joint, the square filter cartridge 17 is arranged on the outer wall of the left end of the flange C18, a plurality of filter screens 15 are arranged at the inner center of the square filter cartridge 17 according to the descending order of the mesh size, the filter screens 15 act to filter solid particles in water to ensure the water quality of the water, the sealing plate 13 can be placed outside the bottom end of the cleaning opening 16 because the cleaning opening 16 is arranged in the center of the bottom of the square filter cartridge 17 to ensure the cross section shape of the sealing plate 13 to be matched with the cleaning opening 16, the sealing pad 14 is arranged on the outer wall of the top end of the sealing plate 13, the sealing gasket 14 is tightly attached between the sealing plate 13 and the outer wall of the bottom of the square filter cartridge 17, the sealing gasket 14 is used for preventing leakage and improving sealing performance, the sealing plate 13 and the square filter cartridge 17 are fixedly closed by a plurality of screws, then the flange B12 is connected with a pipeline for supplying water source, when water flows through the filter screen 15 in the square filter cartridge 17, solid particles are filtered out through the filter screen 15, water quality can be purified, the purified water reaches the water inlet channel 5 through the multi-stage filter device 6 and then is discharged from the water outlet channel 2, finally, if the solid particles on the filter screen 15 need to be cleaned, a plurality of screws on the sealing plate 13 can be removed to expose a cleaning opening 16, the solid particles are brushed or washed clean by a small brush through the cleaning opening 16, and then the cleaning opening 16 is closed to ensure sealing.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a multi-stage valve core of governing valve, includes water outlet channel (2) and valve body (3), its characterized in that: the novel valve is characterized in that a water outlet channel (2) is formed in the right end of the valve body (3), a water inlet channel (5) is formed in the left end of the valve body (3), a multi-stage valve core main body (4) is arranged in the valve body (3), a flange A (1) is arranged at the right end of the water outlet channel (2) and at the left end of the water inlet channel (5), and a multi-stage filtering device (6) is fixed at the left end of the water inlet channel (5) through the flange A (1) and a plurality of screws;

Multistage filter device (6) include flange B (12), filter screen (15), tetragonal filter cartridge (17) and flange C (18), flange C (18) are through a plurality of screws and flange A (1) fixed connection, be provided with tetragonal filter cartridge (17) on flange C (18) left end outer wall, be provided with flange B (12) on tetragonal filter cartridge (17) left end outer wall, tetragonal filter cartridge (17) inside center department equidistance is provided with a plurality of filter screens (15).

2. The regulator valve multi-stage spool according to claim 1, wherein: multistage filter device (6) still include sealing plate (13), sealed pad (14) and clear mouthful (16), square cartridge filter (17) bottom center department is inside to be provided with clear mouthful (16), clear mouthful (16) bottom outside is provided with sealing plate (13), paste on sealing plate (13) top outer wall and have sealed pad (14), and sealed pad (14) laminating is on square cartridge filter's (17) bottom outer wall, and sealing plate (13) are through a plurality of screws and square cartridge filter (17) fixed connection simultaneously.

3. The regulator valve multi-stage spool according to claim 1, wherein: valve body (3) upper end is provided with disk seat (8), and valve body (3) and disk seat (8) pass through screw fixed connection, valve rod (7) are provided with perpendicularly in the inside center department of disk seat (8), and valve rod (7) bottom and multistage case main part (4) fixed connection.

4. The regulator valve multi-stage spool according to claim 1, wherein: the multi-stage valve core main body (4) is formed by a primary valve core (9), a secondary valve core (10) and a tertiary valve core (11), the tertiary valve core (11) is arranged at the bottom end of the valve rod (7), the secondary valve core (10) is arranged at the bottom end of the tertiary valve core (11), the primary valve core (9) is arranged at the bottom end of the secondary valve core (10), and the diameters of the primary valve core (9), the secondary valve core (10) and the tertiary valve core (11) are sequentially reduced.

5. The regulator valve multi-stage spool according to claim 2, wherein: the size of the meshes of the filter screen (15) is gradually decreased from left to right, the filter screen (15) is positioned at the upper side of the cleaning opening (16), the cross section shape of the sealing plate (13) is the same as that of the cleaning opening (16), and the length and the width of the cross section of the sealing plate (13) are larger than those of the cross section of the cleaning opening (16).