WO2012122809A1

WO2012122809A1 - Maglev intelligent valve

Info

Publication number: WO2012122809A1
Application number: PCT/CN2011/081768
Authority: WO
Inventors: 杨立; 杨善豪; 陈跃进; 王子奂; 肖大林; 赵新国
Original assignee: 黄石市海成节能科技开发有限公司
Priority date: 2011-03-11
Filing date: 2011-11-04
Publication date: 2012-09-20
Also published as: CN102102777B; CN102102777A

Abstract

A maglev intelligent valve has a valve seat (1). A water inlet, a water outlet, a water inlet channel and a water outlet channel are opened on the valve seat (1). A water passing cavity (7) in communication with the water inlet channel and the water outlet channel is disposed on the upper part of the valve seat (1). A maglev valve block (11) is mounted on the water passing cavity (7). The maglev valve block (11) comprises a cylinder seat (23) and a floating piston (25) mounted in the cylinder seat (23). The floating piston (25) has a water through hole (28) opened in the center thereof, and a delay water injection hole (26) in communication with the water passing cavity (7) and the water inlet channel and opened near the edge thereof. An upright column (18) is arranged in the center of the upper end face of the cylinder seat (23). A blind hole with the opening facing downwards is disposed in the upright column (18). A sliding rod (21) is mounted in the blind hole. A sealing gasket (24) capable of sealing the water through hole is mounted at the lower end of the sliding rod (21). A magnetic column (19) is fixedly mounted at the upper end of the sliding rod (21). A sliding sleeve (16) is mounted outside the upright column (18). A magnetic ring (17) is mounted between the upright column (18) and the sliding sleeve (16). A return spring (20) is mounted at the lower end of the magnetic ring (17) and a button (15) is mounted at the upper end of the magnetic ring (17). The maglev intelligent valve does not wear easily and is sealed reliably.

Description

A magnetic floating intelligent wide

(I) Technical Field: The present invention relates to a switch valve type product, and more particularly to a magnetic floating type smart valve.

(II) Background technology: Valves are a kind of mechanical products widely used in industry, agriculture, national defense and closely related to people's daily work and life. Valves are an important component in pipeline systems. They are one of the main sources of leakage in the system and are a vital part of energy conservation. Valve tightness is the ability to prevent media leakage. There are two types of media leakage: internal leakage and external leakage. The internal leakage affects the ability of the valve to intercept the medium and the normal operation of the equipment. The external leakage is the leakage of the medium from the valve to the outside of the valve. It directly affects safe production, energy economic losses, and environmental pollution. Therefore, external leakage is not allowed at all, and the valve must have a reliable sealing performance.

In the existing valve structure, the inner leakage sealing portion is an anastomosis surface between the opening and closing member and the book valve seat. The external leakage is the connection between the packing and the stem and the stuffing box, and the connection between the valve body and the bonnet. The first sealing property of an external leak is the dynamic sealing property and is the main form of seal failure. Different countries and industries have established corresponding sealing levels for different leakage quantities. various kinds. The three levels of tightness, durability and temperature are assessed.

In order to improve the sealing performance, it is technically necessary to adopt a high-precision grinding sealing surface, increase the specific pressure of the sealing surface, and improve the rigidity of the structure. In addition to the structural design and manufacturing process of the valve, the most obvious impact on the external leakage is the strictest requirements for the processing of the stem and the packing and the stuffing box. 1. Casting requirements are high and there are no casting defects. 2. Improve the roughness of the stem and stuffing box, the straightness of the stem, the verticality and the degree of machining of the bonnet packing hole.

Due to the structure selection of the valve stuffing box, the seal here is a dynamic seal. The filler is easy to wear during the rotation or sliding process. The special low-leakage packing seal and packing seal combination are required to strictly control the gap between the packing and the valve stem. The gap between the packing and the stuffing box.

In summary, the existing valve manufacturing and processing requirements and production costs are high, the service life and performance are affected by factors such as the quality of the filler material and the temperature of the medium. It is prone to leakage and requires regular maintenance and replacement of the filler. In the existing delay valves, mechanical or electromagnetic delay structures are mainly used, and the two structures are complicated, have poor stability, and have a limited service life.

(III) SUMMARY OF THE INVENTION The object of the present invention is to solve the problems of easy wear and tear failure, short service life, high processing precision, complicated delay structure and high manufacturing cost of the existing delay type valve dynamic seal, and a magnetic floating type is provided. Smart valve.

The specific solution of the present invention is: Designed with a valve seat, the valve seat is provided with inlet and outlet ports and inlet and outlet channels, and at the valve seat The upper part is provided with a water passage chamber, and the water passing chamber is respectively connected with the inlet and outlet and the water passage. The magnetic floating valve group is installed on the water passing chamber, and the magnetic floating valve group has a cylinder seat, and the lower part of the cylinder seat is designed with a piston chamber. The floating piston is installed in the cavity, and the floating piston is installed in the water inlet chamber at the inlet of the water outlet, and a water passage hole is connected to the water outlet at the center of the floating piston, and a floating water injection hole is connected to the floating piston through the water chamber or In the waterway; a column is designed at the center of the upper end surface of the cylinder block, and a blind hole with an opening facing downward is arranged in the column, a sliding rod is arranged in the blind hole, and a sealing hole is arranged at a lower end of the sliding rod to face the floating hole of the floating piston Arrangement, the upper end of the sliding rod is fixedly equipped with a magnetic column, and a sliding sleeve is arranged outside the column, and a magnetic ring is installed between the column and the sliding sleeve, and the magnetic pole and the magnetic pole are both reversely mounted, and the magnetic ring is The lower end is equipped with a return spring, the upper end is equipped with a button, the lower end of the button is designed with an outer stop, the upper end of the sliding sleeve is designed with an inner stop, and the inner and outer stops are matched with the limit.

In the present invention, a nut head is designed on the upper end surface of the cylinder block in the magnetic float valve group, and the sliding sleeve outside the column is threadedly engaged with the nut head. Of course, it is also possible to weld or use a connector such as a bolt for docking installation.

In order to facilitate the processing and assembly, in the present invention, a sealing cover plate is installed between the cylinder block of the magnetic float valve group and the valve seat, and is provided with a gasket.

In order to ensure reliable valve closing, the present invention has a groove on the lower end surface of the floating piston of the magnetic float valve group, and a sealing ring is arranged in the groove.

In order to improve the reliability of the valve, the present invention has a dust cover attached to the outside of the button, and the inner cavity of the dust cover is slidably coupled with the outer wall of the sliding sleeve.

In order to adapt to different pipeline layout conditions and facilitate outlet installation, in the present invention, the side wall of the valve seat is divided into four directions, and one inlet is connected to the water inlet, and the three outlets are connected to the water outlet.

In order to achieve water conservation and meet the needs of different water usage, the present invention can be designed as a double-delay double-head valve structure, in particular, two sets of magnetic float valve groups are installed on the water passage of the valve seat, corresponding to the valve seat There are two outlet inlets on the waterway; and the aperture of the delayed injection hole on the floating piston in one of the maglev valve groups is smaller than the aperture of the delayed injection hole on the floating piston in the other maglev valve group. At the same time, a cover is arranged outside the two sets of magnetic float valve groups, and the cover is fixedly mounted with the valve seat to make the valve look beautiful.

The working principle of the invention is: open the valve, press the button downwards (see Figure 8), and move the magnetic ring downward. When the upper end of the magnetic ring exceeds the center line of the magnetic column, the magnetic ring and the magnetic column repel each other, magnetic The column is pushed up and moved upwards, and the magnetic column drives the lower end of the sliding rod out of the floating piston to open the water hole, and enters the water in the upper cavity of the floating piston through the water inlet, the water inlet, the water inlet, and the water injection hole (or gas, etc.) Medium), quickly discharge the pressure through the water hole, and make the floating piston float, then the floating piston opens the water inlet, water (or medium such as gas), enters the water outlet through the water inlet, the water inlet, and the water chamber. Discharge of the nozzle. Release the button (see Figure 9), push the magnetic ring and button to the top under the action of the return spring The limit position, the magnetic ring pushes the magnetic pole (the same-sex repellent principle), drives the sliding rod to close the water-passing hole on the floating piston, and pushes the floating piston to close the water inlet, and the water (or medium such as gas) passes the delay. The water injection hole enters the upper chamber of the floating piston until the floating piston completely seals the water inlet, thereby closing the valve. The aperture size of the time-lapse water injection hole is determined according to the length of the delay. The small aperture has a long delay, and the large aperture has a short delay.

The utility model has the advantages of compact structure, canceling the valve stem packing and the stuffing box; adopting the magnetic floating technology, the opening assembly is completely sealed, non-contact, frictionless, non-lubricating, the sealing is extremely reliable, the possibility of leakage of the medium is avoided, and the service life is long; The processing precision of each component is not high, the delay structure is extremely simple, the manufacturing cost is low, the installation is simple, maintenance-free, and it can be widely used in water supply and gas supply pipelines in daily life and industrial production.

(4) Description of the drawings:

Figure 1 is a plan view of a valve seat in the present invention;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

Figure 3 is a cross-sectional view taken along line B-B of Figure 1;

Figure 4 is a front cross-sectional view showing the overall structure of the present invention;

Figure 5 is a cross-sectional view taken along line C-C of Figure 4;

Figure 6 is a cross-sectional view taken along line D-D of Figure 4;

Figure 7 is a cross-sectional view taken along line F-F of Figure 5;

Figure 8 is a front sectional view showing the magnetic floating valve group in an open state in the present invention;

Figure 9 is a front cross-sectional view showing the magnetic float valve group in a closed state in the present invention.

In the figure: 1-valve, 2, 3, 4-outlet, 5-inlet, 6-inlet, 7-over-water chamber, 8-outlet inlet, 9-outlet, 10-sealed cover, 11-Magnetic float valve set, 12-outer cover, 13-piston chamber, 14-dust cover, 15-button, 16-sleeve, 17-magnetic column, 18-column, 19-magnet ring, 20-return spring, 21-slider, 22-nut head, 23-cylinder seat, 24-seal pad, 25-floating piston, 26-time delay water injection hole, 27-seal ring, 28-water hole, 29-stop step.

(5) Specific implementation methods:

Make a flush valve for the toilet, see Figure 4-7. To save water, design a double-head combination, double-delay maglev intelligent valve with two sets of magnetic float valve sets 11, corresponding to the valve seat 1 Two water outlets are designed on the water channel 9; and the time delay water injection hole 26 on the floating piston 25 in one of the magnetic float valve groups 11 has a smaller diameter than the time delay water injection hole on the floating piston 25 in the other magnetic floating valve group 11. The aperture of 26 is small. The specific embodiment of the present invention is: using aluminum alloy (or copper, stainless steel, etc.), according to Figure 1-3 to make the valve seat 1, according to the description of Figures 4, 5 to make a sealing cover 10 with two threaded holes, The sealing cover 10 and the valve seat 1 are integrally assembled by a gasket and a nut. The specific structure of the valve seat 1 is as shown in Figure 1-3, which has a water inlet 6 and three water outlets 2, 3, 4. (After installation on site, generally only one water outlet is reserved, and the other two are blocked, also It is possible to design only the common water outlets in one direction, as well as the water inlet 5 and the water outlet 9, and the water outlet 9 has two water outlets 8 above. According to FIG. 8 or FIG. 9, two magnetic floating valve groups 11 are produced. Each magnetic floating valve group 11 has a cylinder block 23. The lower portion of the cylinder block 23 is designed with a piston chamber 13 in which a floating piston 25 is mounted, and a floating piston 25 is in the water chamber. 7 is installed in the water outlet 8 of the water outlet 9, and a water passage 28 is connected to the water outlet 9 at the center of the floating piston 25, and a floating water injection hole 26 is connected to the floating piston 25 through the water chamber 7 or The inlet 5 is designed at the center of the upper end surface of the cylinder block 23, and the column 18 is externally formed with a finite step 29 (the upper end of the magnetic ring is ensured to pass through the center line of the magnetic column), and the column 18 is designed with a blind opening downward. The sliding hole 21 is arranged in the blind hole. The lower end of the sliding rod 21 is provided with a gasket 24 disposed on the water-passing hole 28 of the floating piston 25. The upper end of the sliding rod 21 is fixedly equipped with a magnetic column 17, and the outer column of the column 18 is mounted. There is a sliding sleeve 16, and a magnetic ring 19 is installed between the column 18 and the sliding sleeve 16. The magnetic ring 19 and the magnetic column 17 are magnetically oppositely mounted, and a return spring 20 is mounted at the lower end of the magnetic ring 19, and the upper end is mounted with Button 15, the lower end of the button 15 is designed with an outer stop, and the upper end of the sliding sleeve 16 is designed with an inner stop, inner and outer stops Match the limit. And a nut head 22 is formed on the upper end surface of the cylinder block 23 in the magnetic flotation valve group 11, and the sliding sleeve 16 outside the column 18 is threadedly butted with the nut head 22, and the lower end surface of the floating piston 25 of the magnetic flotation valve group 11 is concave. The groove is provided with a sealing ring 27, and a dust cover 14 is attached to the outside of the button 15. The inner cavity of the dust cover 14 is slidably coupled with the outer wall of the sliding sleeve 16. Finally, the two maglev valve groups 11 and the two threaded holes on the sealing cover 10 are integrally assembled by a sealing tape. For the sake of beauty, a cover 12 is provided outside the two sets of magnetic float valve groups 11, and the cover 12 is fixedly mounted to the valve seat 1, which constitutes the present invention.

The invention can also be made into a single-head structure according to the market demand, that is, in the above embodiment, a magnetic floating valve group 11 is eliminated, the total volume of the valve seat is reduced, a threaded hole is reserved on the corresponding sealing cover, and a water outlet is reserved on the water outlet. The entrance is fine.

Claims

Claim

1. The magnetic floating intelligent valve has a valve seat. The valve seat is provided with a water inlet, a water outlet and a water inlet and a water outlet, and a water chamber is arranged at the upper part of the valve seat, and the water passage is respectively connected with the water inlet and the water outlet. A magnetic float valve group is mounted on the water chamber, and the magnetic floating valve group has a cylinder block. The lower part of the cylinder block is designed with a piston chamber, and the floating piston is installed in the cavity, and the floating piston is opposite to the water outlet in the water passing chamber. Installed, and a water-passing hole is connected to the water outlet at the center of the floating piston, and a floating water injection hole is connected to the floating piston through the water chamber or the water inlet; a column is designed at the center of the upper end surface of the cylinder block, and the column is designed There is a blind hole with an opening facing downward, a sliding rod is arranged in the blind hole, and a sealing pad is arranged at the lower end of the sliding rod to be arranged to the water-passing hole of the floating piston, and the upper end of the sliding rod is fixedly equipped with a magnetic column, and is installed outside the column There is a sliding sleeve, and a magnetic ring is installed between the column and the sliding sleeve. The magnetic pole and the magnetic pole are oppositely mounted with magnetic poles, and a return spring is mounted at the lower end of the magnetic ring, and a button is installed at the upper end, and the lower end of the button is designed to be externally stopped. Mouth, slippery The end design has an inner stop, and the inner and outer stops cooperate with the limit.

2. The magnetic floating intelligent valve according to claim 1, wherein: the upper end surface of the cylinder block in the magnetic flotation valve group is provided with a nut head, and the sliding sleeve outside the column is threadedly engaged with the nut head.

3. The magnetic floating smart valve according to claim 1, wherein: a sealing cover is arranged between the cylinder seat of the magnetic float valve group and the valve seat, and is provided with a gasket.

4. The magnetic floating intelligent valve according to claim 1, wherein: a concave groove is formed in a lower end surface of the floating piston of the magnetic floating valve group, and a sealing ring is arranged in the groove.

5. The magnetic floating smart valve according to claim 1, wherein: a dust cover is mounted on the outside of the button, and the inner cavity of the dust cover is slidably coupled to the outer wall of the sliding sleeve.

6. The magnetic floating intelligent valve according to claim 1, wherein: the water inlet of the valve seat is divided into four directions, and one water inlet is connected to the water inlet, and the three water outlets are connected to the water outlet.

7. The magnetic floating intelligent valve according to claim 1 or 6, wherein: two sets of magnetic floating valve groups are installed on the water passage of the valve seat, and two water outlets are designed corresponding to the water outlet of the valve seat. The inlet; and the aperture of the time-delay water injection hole on the floating piston in one of the maglev valve groups is smaller than the aperture of the time-delay water injection hole on the floating piston in the other magnetic-floating valve group.

8. The magnetic floating intelligent valve according to claim 7, wherein: a cover is disposed outside the two sets of magnetic float valve groups, and the cover is fixedly mounted with the valve seat.