CN217603443U

CN217603443U - Micro-bubble exhaust valve

Info

Publication number: CN217603443U
Application number: CN202220884051.5U
Authority: CN
Inventors: 詹征
Original assignee: Taizhou Tongsheng Brass Co ltd
Current assignee: Taizhou Tongsheng Brass Co ltd
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-10-18
Anticipated expiration: 2032-04-16

Abstract

The utility model provides a microbubble discharge valve belongs to valve technical field. It has solved the not enough problem of security. The air-filtering type water-saving valve comprises a valve body, a partition plate, a filtering piece and a floater, wherein the partition plate is arranged in the valve body and divides an inner cavity of the valve body into an upper cavity and a lower cavity, the filtering piece is arranged in the lower cavity, the floater is arranged in the upper cavity, a water inlet and a water outlet which are communicated with the lower cavity are formed in the lower part of the valve body, an exhaust assembly is arranged at the top of the valve body, a linkage mechanism which can drive the exhaust assembly to be opened when the floater sinks is arranged between the floater and the exhaust assembly, a safety valve is connected to the upper part of the valve body, and the connection position of the safety valve and the valve body is not lower than the lowest position of the floater sinking under the action of self gravity. It has the advantages of timely pressure relief, high safety and the like.

Description

Micro-bubble exhaust valve

Technical Field

The utility model belongs to the technical field of the valve, a microbubble discharge valve is related to.

Background

The microbubble exhaust valve is a commonly used filtering device in a circulating water system, can gradually remove tiny bubbles from circulating water through a filter screen in a valve body, thereby reducing noise caused by free bubbles in the circulating system, avoiding flow speed variation caused by the activity of the free bubbles, and being particularly effective for systems with tiny static pressure and positions where the bubbles are easy to generate due to heating.

For example, the composite micro-bubble exhaust valve with the patent application number of 202120716758.0 comprises an automatic exhaust system, a manual exhaust system and a main body device, wherein the automatic exhaust system comprises an automatic exhaust core, a first spring and an automatic exhaust cap, the bottom end of the automatic exhaust core is fixedly connected with one end of an L-shaped pull rod, and the first spring is arranged at the top end of the automatic exhaust core; the manual exhaust system comprises a manual exhaust core, a second spring and a manual exhaust cap, wherein the second spring is arranged at the position, at the top end of the manual exhaust core, of the same level as the first spring; the main body device comprises a valve body, a valve cover, a filter screen and an exhaust floater assembly, wherein the filter screen is arranged inside the valve body, the valve cover is fixedly connected to the top end of the valve body, the exhaust floater assembly is arranged at the position, connected with the valve body, of the bottom end inside the valve cover, and the left side of the top end of the exhaust floater assembly is fixedly connected to the other end of the L-shaped pull rod. Under the natural state, the exhaust floater component pulls the automatic exhaust core to move downwards through the L-shaped pull rod under the action of the self gravity to open the automatic exhaust system, when circulating water flows into the valve body, the circulating water is contacted with the filter screen to separate gas in the circulating water and ascend to the top of the valve body, and meanwhile, the exhaust floater floats upwards under the action of the buoyancy of the water to close the automatic exhaust system. As gas continues to accumulate at the top of the valve body, the pressure at the top of the valve body rises, which causes the water level in the valve body to drop, whereupon the float sinks, opening the automatic venting system for venting. Meanwhile, when the automatic exhaust system is damaged, a user can realize manual exhaust of the whole device by pressing the manual exhaust core. However, the time for the instantaneous increase of the system pressure is short, and the user cannot grasp the pressure change of the system in real time and operate the manual exhaust system in time according to the change in practice, so that the safety is still insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide a microbubble discharge valve, solved the not enough problem of security.

The purpose of the utility model can be realized by the following technical proposal:

the microbubble exhaust valve comprises a valve body, a partition plate, a filtering piece and a floater, wherein the partition plate is arranged in the valve body and divides an inner cavity of the valve body into an upper cavity and a lower cavity, the filtering piece is arranged in the lower cavity, the floater is arranged in the upper cavity, a water inlet and a water outlet which are communicated with the lower cavity are formed in the lower part of the valve body, an exhaust assembly is arranged at the top of the valve body, and a linkage mechanism which can drive the exhaust assembly to be opened when the floater sinks is arranged between the floater and the exhaust assembly.

When the exhaust micro-bubble valve is in an inoperative state, the float sinks under the action of the gravity of the float and controls the exhaust assembly to be opened through the linkage mechanism. When circulating water flows into the lower cavity of the valve body from the water inlet, bubbles in the circulating water can attach to the filtering piece and are separated out and float upwards to enter the upper cavity, and the floater floats upwards gradually in the circulating water to enable the exhaust assembly to be closed through the through holes in the partition plate to penetrate into the upper cavity. Along with gaseous constantly gathering in last cavity, the atmospheric pressure in the cavity of going up increases gradually and pushes down circulating water and the float in the cavity of going up and make the float move down, and so the float just opens through link gear control exhaust assembly once more for the internal gas of going up the cavity can outwards be discharged.

When the pressure in the system is increased instantly, the exhaust function at the exhaust assembly fails due to slow exhaust speed, and the safety valve is automatically opened under the action of the pressure to exhaust gas and circulating water, so that the pressure can be reduced rapidly, and the safety is greatly improved. Moreover, compared with manual operation, the safety valve can be automatically opened when the pressure is instantly increased, so that the pressure relief can be more timely.

In the micro-bubble exhaust valve, the connecting position of the installation valve and the valve body is higher than 2/3 of the lowest position of the float which sinks under the action of the gravity of the float.

In the above-mentioned microbubble exhaust valve, the safety valve is connected to the top of the valve body.

In the microbubble exhaust valve, the safety valve comprises a main body provided with an inlet, a pressure relief opening and a pressure relief cavity communicated with the inlet and the pressure relief opening, a sealing assembly capable of moving under the action of elasticity to separate the inlet from the pressure relief cavity is arranged in the pressure relief cavity, a pull rod is connected to the sealing assembly, and an operating part capable of lifting the pull rod to perform manual pressure relief is arranged at the end part of the pull rod.

Through the arrangement, the safety valve further has the function of manual opening on the basis of automatic pressure relief, so that the applicability is greatly improved.

Compared with the prior art, the micro-bubble exhaust valve has the advantages that the safety valve is connected to the upper portion of the valve body, the connecting position of the safety valve and the valve body is not lower than the lowest position of the float, which sinks under the action of self gravity, the pressure can be discharged by the safety valve when the system pressure is increased instantly, meanwhile, the exhaust valve can replace a failed exhaust assembly to exhaust gas instantly, and safety is greatly improved.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present microbubble degassing valve.

Fig. 2 is a sectional view of a first embodiment of the present microbubble exhaust valve (in an inoperative state).

Fig. 3 is a sectional view of the relief valve.

Fig. 4 is a schematic view of a hand wheel of the relief valve.

Fig. 5 is an exploded schematic view of the safety valve.

FIG. 6 is a schematic view of a second embodiment of the microbubble degassing valve.

FIG. 7 is a schematic view of a third embodiment of the present micro bubble exhaust valve.

In the figure, 1, a valve body; 1a, an upper cavity; 1b, a lower cavity; 1c, a water inlet; 1d, a water outlet; 1e, an exhaust hole; 1f, a hinged seat; 1g, a connecting port; 2. a partition plate; 2a, a through hole; 3. a filter member; 4. a float; 5. an exhaust assembly; 5a, a core rod; 5a1, a seal portion; 5a2, a boss; 5b, a spring seat; 5c, an exhaust spring; 6. a seal ring; 7. swinging arms; 8. pulling a hook; 9. a safety valve; 9a, a main body; 9a1, an inlet; 9a2 and a pressure relief opening; 9a3, a pressure relief cavity; 9a4, a flange; 9a41, water through holes; 9a5, a convex portion; 9a6, a body; 9a7, valve cap; 10. a seal assembly; 10a, a rubber film; 10b, sealing the base; 10c, a seal spring; 11. a pull rod; 12. a hand wheel; 12a, an accommodating cavity; 12b, a cavity; 13. a bump; 14. guiding the slope surface; 15. a nut; 16. an adjusting cap; 17. and (4) connecting the pipes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 2, the micro-bubble exhaust valve includes a valve body 1, a partition plate 2 disposed in the valve body 1 and dividing an inner cavity of the valve body 1 into an upper cavity 1a and a lower cavity 1b, a filter member 3 disposed in the lower cavity 1b, and a float 4 disposed in the upper cavity 1a, wherein the partition plate 2 is provided with a plurality of through holes 2a having two ends penetrating therethrough, a water inlet 1c and a water outlet 1d communicated with the lower cavity 1b are disposed at a lower portion of the valve body 1, an exhaust assembly 5 is disposed at a top of the valve body 1, and a linkage mechanism capable of driving the exhaust assembly 5 to open when the float 4 sinks is disposed between the float 4 and the exhaust assembly 5. Specifically, valve body 1 top is equipped with exhaust hole 1e, and exhaust subassembly 5 is equipped with sealing washer 6 including wearing to locate the core bar 5a in the exhaust hole 1e, the interior side of lower port in the exhaust hole 1e, and core bar 5a is close to lower extreme position department and has the sealing 5a1 that can support when core bar 5a rebound and lean on sealing washer 6. Furthermore, the exhaust assembly 5 further comprises a spring seat 5b fixed at the upper end of the core rod 5a and an exhaust spring 5c sleeved outside the core rod 5a, a shoulder is arranged at a position close to the lower port in the exhaust hole 1e, and two ends of the exhaust spring 5c respectively act on the shoulder and the spring seat 5 b. Go up cavity 1a roof and have articulated seat 1f, the link gear is including articulating the swing arm 7 on articulated seat 1f, connect the drag hook 8 at 4 tops of float and locate the boss 5a2 of the tip under the core bar 5a, core bar 5a makes boss 5a2 support and leans on at swing arm 7 downside under exhaust spring 5 c's effect, the hook of 8 upper ends of drag hook is at swing arm 7 tip, can stimulate swing arm 7 downswing through drag hook 8 when float 4 sinks, thereby exert effort by swing arm 7 and force core bar 5a downstream on boss 5a 2.

As shown in fig. 1, 2 and 3, a safety valve 9 is connected to the upper part of the valve body 1, and the connection position of the safety valve 9 and the valve body 1 is not lower than the lowest position where the float 4 sinks under its own weight, and preferably, the connection position of the installation valve and the valve body 1 is higher than 2/3 of the lowest position where the float 4 sinks under its own weight. The safety valve 9 comprises an inlet 9a1, a pressure relief opening 9a2 and a main body 9a communicating the inlet 9a1 with the pressure relief opening 9a2, a sealing component 10 capable of moving under the action of self elasticity to separate the inlet 9a1 from the pressure relief opening 9a3 is arranged in the pressure relief cavity 9a3, a pull rod 11 is fixedly connected to the sealing component 10, and an operating piece capable of lifting the pull rod 11 to perform manual pressure relief is arranged at the end of the pull rod 11. An included angle between the inlet 9a1 and the pressure relief opening 9a2 is 90 degrees, a flange 9a4 is arranged in the pressure relief cavity 9a3, a water through hole 9a41 is arranged on the inner side of the flange 9a4, the center line of the water through hole is collinear with the inlet 9a1, and the two ends of the water through hole 9a41 penetrate through the water through hole, and an opening at one end of the water through hole 9a41 is communicated with the inlet 9a 1. The valve body 1 is provided with a connecting port 1g, the connecting port 1g is arranged at the top of the valve body 1 and is parallel to the exhaust hole 1e, and the inlet 9a1 of the main body 9a is directly in threaded connection with the connecting port 1g of the valve body 1.

As shown in fig. 3, 4 and 5, the operating element includes a hand wheel 12 sleeved outside the upper end of the main body 9a and in transmission connection with the pull rod 11, a protrusion 13 is arranged outside the upper end of the main body 9a, and a guide slope 14 capable of moving along the protrusion 13 when the hand wheel 12 rotates is arranged on the inner side of the lower end of the hand wheel 12. The inner side of the lower end of the hand wheel 12 is provided with a containing cavity 12a, the upper end of the main body 9a is provided with a convex part 9a5 extending into the containing cavity 12a, the upper end of the hand wheel 12 is provided with a concave cavity 12b, a communicating hole communicating the containing cavity 12a with the concave cavity 12b is formed in the hand wheel 12, the upper end of the pull rod 11 penetrates through the communicating hole to the inside of the concave cavity 12b and is in threaded connection with a nut 15, and when the hand wheel 12 moves upwards, the pull rod 11 can be pushed to move upwards by abutting against the lower side surface of the nut 15 through the bottom wall of the concave cavity 12 b. When the hand wheel 12 is rotated, the guide slope 14 moves along the projection 13, and the contact position of the guide slope 14 and the projection is transferred from the highest point of the guide slope 14 to the lowest point of the guide slope 14, so that the hand wheel 12 is forced to move upwards through the change of the slope, and the pull rod 11 is lifted by the abutment of the bottom wall of the concave cavity 12b and the lower side surface of the nut 15, so that the sealing component 2 is driven to be far away from the water through hole 9a41, the inlet 9a1 is communicated with the pressure release cavity 9a3, and the manual pressure release is realized. The number of the convex blocks 13 is a plurality, and the convex blocks are uniformly distributed on the periphery of the convex part 9a5 along the circumferential direction, the number of the guide slope surfaces 14 is the same as that of the convex blocks 13, and the guide slope surfaces 14 are distributed around the accommodating cavity 12 a. The main body 9a comprises a body 9a6 and a bonnet 9a7 screwed to the upper end of the body 9a6, the convex portion 9a5 is located at the top of the bonnet 9a7, the sealing assembly 10 comprises a rubber membrane 10a, a sealing base 10b and a sealing spring 10c, the rubber membrane 10a is bowl-shaped, the edge of the rubber membrane is clamped and fixed between the body 9a6 and the bonnet 9a7, the sealing base 10b is fixed on the inner side of the rubber membrane 10a, the convex portion 9a5 is in threaded connection with an adjusting cap 16, and two ends of the sealing spring 10c respectively act on the adjusting cap 16 and the sealing base 10 b. The lower end of the pull rod 11 is fixedly connected with the sealing base 10b, and the upper end of the pull rod 11 penetrates through the adjusting cap 16.

When the exhaust micro-bubble valve is in an idle state, as shown in fig. 2, the float 4 sinks under the action of the self gravity and controls the exhaust component 5 to be opened through the linkage mechanism. When the circulating water flows into the lower cavity 1b of the valve body 1 from the water inlet 1c, bubbles in the circulating water are attached to the filter element 3 and separated out, and float upwards to enter the upper cavity 1a, and the float 4 gradually floats upwards to close the exhaust assembly 5 when the circulating water overflows to the upper cavity 1a through the through hole 2a in the partition plate 2. Along with the accumulation of gas in the upper cavity 1a, the atmospheric pressure in the upper cavity 1a increases gradually and pushes down circulating water and float 4 in the upper cavity 1a and makes float 4 move downwards, so float 4 just opens through linkage control exhaust assembly 5 once more for the gas in the upper cavity 1a can outwards be discharged.

When the pressure in the system is increased instantaneously, the exhaust function at the exhaust assembly 5 is disabled due to slow exhaust speed, and at the moment, the safety valve 9 is automatically opened under the action of the pressure to exhaust gas and circulating water, so that the pressure can be reduced rapidly, and the safety is greatly improved.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, and the differences are as follows: in the present embodiment, as shown in fig. 6, the inlet 9a1 of the main body 9a and the connection port 1g of the valve body 1 are connected by the connection pipe 17.

EXAMPLE III

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in the present embodiment, as shown in fig. 7, the connection port 1g is provided at a position on the side of the valve body 1 near the top.

Example four

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in the present embodiment, the main body 9a is integrally formed on the valve body 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Microbubble discharge valve, including valve body (1), set up in valve body (1) and separate valve body (1) inner chamber for baffle (2) of last cavity (1 a) and lower cavity (1 b), set up filter (3) in lower cavity (1 b) and set up float (4) in last cavity (1 a), valve body (1) lower part be equipped with water inlet (1 c) and delivery port (1 d) that are linked together with lower cavity (1 b), valve body (1) top be equipped with exhaust subassembly (5) and float (4) and exhaust subassembly (5) between be equipped with can drive the link gear that exhaust subassembly (5) opened when float (4) sink, its characterized in that, valve body (1) upper portion be connected with relief valve (9), the hookup location of relief valve (9) and valve body (1) is not less than the extreme low position that float (4) sink under self action of gravity.

2. The micro bubble degassing valve according to claim 1, wherein the safety valve (9) is connected to the top of the valve body (1).

3. The microbubble exhaust valve according to claim 1 or 2, wherein the safety valve (9) comprises a main body (9 a) having an inlet (9 a 1), a pressure relief port (9 a 2) and a pressure relief cavity (9 a 3) communicating the inlet (9 a 1) with the pressure relief port (9 a 2), a sealing assembly (10) capable of moving under the action of self elasticity to separate the inlet (9 a 1) from the pressure relief cavity (9 a 3) is arranged in the pressure relief cavity (9 a 3), a pull rod (11) is connected to the sealing assembly (10), and an operating member capable of lifting the pull rod (11) to perform manual pressure relief is arranged at the end of the pull rod (11).

4. The microbubble exhaust valve according to claim 3, wherein the operating member comprises a hand wheel (12) sleeved outside the upper end of the main body (9 a), a convex block (13) is arranged outside the upper end of the main body (9 a), a guide slope (14) capable of moving along the convex block (13) when the hand wheel (12) rotates is arranged on the inner side of the lower end of the hand wheel (12), a concave cavity (12 b) is arranged at the upper end of the hand wheel (12), the upper end of the pull rod (11) penetrates into the concave cavity (12 b) and is in threaded connection with a nut (15) capable of abutting against the bottom wall of the concave cavity (12 b).