CN220816727U

CN220816727U - Exhaust valve with filtering capability

Info

Publication number: CN220816727U
Application number: CN202322774277.7U
Authority: CN
Inventors: 辛平; 李杨俊
Original assignee: Zhejiang Yongdexin Technology Co ltd
Current assignee: Zhejiang Yongdexin Technology Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-04-19
Anticipated expiration: 2033-10-17

Abstract

The utility model provides an exhaust valve with a filtering function, which comprises a valve body and a valve cover, wherein the valve body is detachably and hermetically connected, the lower end of the valve body is provided with a communication hole, the inner wall of the valve cover is provided with a filter cylinder, the outer wall of the valve cover is correspondingly provided with a mounting part, the side wall of the filter cylinder is provided with a plurality of first filtering holes, a valve core extending into the filter cylinder is inserted in the mounting part, an exhaust channel is arranged in the valve core, the end part of the valve cover corresponding to the valve core is provided with a rotary sealing assembly, the rotary sealing assembly comprises a plug, a rotary part, a connecting piece and a primary spring, one end of the rotary part is rotationally connected with the connecting piece, the other end of the rotary part extends into the filter cylinder and is detachably and fixedly connected with the plug, one end of the primary spring is fixedly connected with the inner wall of the valve cover, the other end of the primary spring is fixedly connected with the connecting piece and simultaneously drives the plug to the end face of the valve core, and a floater which can rise or fall along with the liquid level and is rotationally connected with the rotary part is arranged in the valve body; the utility model has reasonable structural design, good sealing performance and easy disassembly of the whole body.

Description

Exhaust valve with filtering capability

Technical Field

The utility model relates to an exhaust valve with a filtering function.

Background

The common exhaust structure in the existing exhaust valve usually utilizes the gravity action of a floater to pull down one end of a lever, at the moment, the lever is in an inclined state, a gap appears at the contact part of the lever and an exhaust hole, gas is exhausted from the exhaust hole through the gap, along with the exhaust of air, the liquid level rises, the floater floats upwards under the buoyancy action of the liquid, the sealing end surface on the lever gradually presses the exhaust hole until the whole exhaust hole is completely blocked, at the moment, the sealing end surface part of the lever is supported by a spring, but the continuous bending and stretching of the spring along with the movement of the lever can have certain influence on the service life of the spring, and the sealing performance of the exhaust valve can be influenced in serious cases; when the existing exhaust valve is applied to a pipeline with steam generation, the steam in the pipeline is often discharged from an exhaust channel along with the gas, so that certain limitation is brought to the application of occasions with high clean requirements; accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

In view of the above-mentioned shortcomings, the present utility model provides an exhaust valve with filtering function.

In order to achieve the above purpose, the utility model provides an exhaust valve with a filtering function, which comprises a valve body and a valve cover which are detachably and hermetically connected, wherein the lower end of the valve body is provided with a communication hole, the inner wall of the valve cover is provided with a filter cylinder, the outer wall of the valve cover is correspondingly provided with a mounting part, the side wall of the filter cylinder is provided with a plurality of first filtering holes, a valve core extending into the filter cylinder is inserted into the mounting part, an exhaust passage is arranged in the valve core, the end part of the valve cover corresponding to the valve core is provided with a rotary sealing assembly, the rotary sealing assembly comprises a plug, a rotary part, a connecting piece and a primary spring, one end of the rotary part is rotationally connected with the connecting piece, the other end of the rotary part extends into the filter cylinder and is detachably and fixedly connected with the plug, one end of the primary spring is fixedly connected with the inner wall of the valve cover, the other end of the primary spring is fixedly connected with the connecting piece and simultaneously drives the plug to the end face of the valve core, a floater which can rise or fall along with the liquid level and is rotationally connected with the rotary part is arranged in the valve body, and the valve core can be rotated and driven to rotate through the plug in the vertical direction of the floater to rotate.

Further, be equipped with the filter element in the installation department, the filter element is equipped with a plurality of second filtration pores that are downward slope in parallel on the terminal surface that is close to case one side, installation department outer wall spiro union has the joint that is used for compressing tightly the filter element, and is equipped with first sealing washer between the two, be equipped with the passageway of giving vent to anger in the joint.

Further, the lowest point of the air outlet channel is higher than any position of the second filter holes arranged at the lowest point.

Further, the rotating part is sleeved with the gear part corresponding to the central axis of the floater, the upper end of the floater is provided with a connecting part, one side of the connecting part is provided with a plurality of racks matched with the gear part for use, the outer wall of the floater is symmetrically provided with sliding blocks, and the inner wall of the valve body is correspondingly provided with sliding rails.

Further, the contact ends of the rotating piece and the connecting piece are respectively provided with an annular bulge and an annular groove which are matched with each other.

Further, a shielding part is arranged at one end of the valve core, which is close to the plug, an exhaust port is arranged below the shielding part, and the diameter of the exhaust port is smaller than the inner radius of the valve core; the rotating shaft of the plug and the central axis of the valve core are in the same straight line, and the diameter of the contact surface of the plug and the shielding part is between the diameter of the exhaust port and the outer radius of one end, close to the plug, of the valve core.

Further, the lower end of the valve body is in threaded connection with a block valve body, a second sealing ring is arranged between the block valve body and the block valve body, a block valve core is movably connected in the block valve body, and a plurality of liquid inlets are uniformly formed in the side wall of the block valve core.

Further, a secondary spring is arranged between the isolating valve body and the isolating valve core.

Further, a filter screen is arranged in the valve core of the isolating valve.

Further, a conical sealing gasket is arranged between the valve body and the valve cover, and a third sealing ring is arranged between the valve cover and the valve core.

Compared with the prior art, the utility model has the beneficial effects that: the utility model drives the plug to rotate by utilizing the vertical movement of the floater, and simultaneously controls the valve core to switch between two states of exhaust and sealing, thereby having reasonable structural design, good sealing performance and easy disassembly; meanwhile, the filter cylinder sleeved on the outer side of the valve core and the filter piece arranged in the mounting part can separate steam from water, so that liquid in the pipeline can be prevented from being discharged to the external environment, and the requirement of the external environment on high cleanliness is ensured.

Drawings

FIG. 1 is a cross-sectional view of an exhaust valve with filtering function according to the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view at B in FIG. 1;

fig. 4 is a plan view of the float according to the present embodiment.

Detailed Description

As shown in fig. 1, an exhaust valve with a filtering function according to an embodiment of the present utility model includes a valve body 3 and a valve cover 4 which are detachably and sealingly connected, preferably, the valve cover 4 is screwed on the valve body 3, and a cone-shaped sealing gasket 22 is disposed between the valve body 3 and the valve cover 4, and the cone-shaped sealing gasket 22 is used for improving the sealing performance when the valve body 3 and the valve cover 4 are connected.

Further, as shown in fig. 1, a communication hole 31 is formed at the lower end of the valve body 3 in the embodiment, a block valve body 17 is further screwed on the outer wall surface of the lower end of the valve body 3, a second sealing ring 18 is arranged between the two, a block valve core 19 is movably connected in the block valve body 17, and a secondary spring 20 is specifically arranged between the block valve body 17 and the block valve core 19; meanwhile, a plurality of liquid inlets 191 are uniformly formed in the side wall of the valve core 19 of the isolation valve, a filter screen 21 is arranged in the valve core, the opening of the liquid inlets 191 can be controlled by matching the valve core 19 of the isolation valve with the secondary spring 20, the filter screen 21 can filter liquid flowing in from the liquid inlets 191, and impurities can be prevented from entering the valve body 3 to affect exhaust and sealing of the exhaust valve.

Further, as shown in fig. 1 and 2, the inner wall of the valve cover 4 in the present embodiment is provided with a filter cartridge 5, the outer wall is correspondingly provided with a mounting portion 41, the side wall of the filter cartridge 5 is provided with a plurality of first filter holes 51, and the filter cartridge 5 is made of stainless steel material, which is mainly used for primarily separating steam from water; wherein, the mounting part 41 is internally inserted with a valve core 6 extending into the filter cartridge 5, a third sealing ring 23 is arranged between the valve cover 4 and the valve core 6, and an exhaust channel 61 is arranged in the valve core 6; meanwhile, the filter element 13 is further arranged in the installation part 41, a plurality of second filter holes 131 which are inclined downwards are formed in the end face of the filter element 13, close to one side of the valve core 6, in parallel, the filter element 13 is made of stainless steel, the filter element 13 is mainly used for separating steam and water for the second time, the outer wall surface of the installation part 41 is in threaded connection with a joint 14 used for compressing the filter element 13, a first sealing ring 15 is arranged between the two, an air outlet channel 141 is arranged in the joint 14, the lowest point of the air outlet channel 141 is higher than any position of the second filter holes 131 arranged at the lowest point, liquid after the steam and water separation can flow to the air outlet channel 61 through the second filter holes 131 which are inclined downwards and then flow back to the valve body 3, and seepage of the liquid from the joint 14 end can be avoided.

Further, as shown in fig. 1-3, a rotary sealing assembly 7 is disposed at an end portion of the valve cover 4 corresponding to the valve core 6 in the embodiment, the rotary sealing assembly 7 includes a plug 8, a rotary member 9, a connecting member 10, and a primary spring 11, a shielding portion 62 is disposed at one end of the valve core 6 near the plug 8, an exhaust port 621 is disposed below the shielding portion 62, and a diameter of the exhaust port 621 is smaller than an inner radius of the valve core 6; the rotation axis of the plug 8 and the central axis of the valve core 6 are in the same straight line, and the diameter of the contact surface with the shielding part 62 is between the diameter of the exhaust port 621 and the outer radius of the valve core 6 near one end of the plug 8; meanwhile, one end of the rotating member 9 is rotationally connected with the connecting member 10, namely, the contact ends of the rotating member 9 and the connecting member 10 are respectively provided with an annular protrusion 91 and an annular groove 101 which are matched with each other, the other end of the rotating member 9 extends into the filter cylinder 5 and is detachably and fixedly connected with the plug 8, and the outer wall surface of the rotating member 9 is matched with the inner wall surface of the filter cylinder 5, so that steam can be prevented from entering from the space between the outer wall surface of the rotating member 9 and the inner wall surface of the filter cylinder 5 to a certain extent; meanwhile, one end of the primary spring 11 is fixedly connected with the inner wall of the valve cover 4, the other end of the primary spring is fixedly connected with the connecting piece 10, and meanwhile the plug 8 is driven to abut against the end face of the valve core 6, namely, the primary spring 11 is used for pressing the plug 8 to abut against the end face of the shielding part 62, so that the sealing performance of the exhaust valve is improved.

Further, as shown in fig. 1 and 4, a float 12 capable of ascending or descending along with the liquid level and having an upper end rotationally connected with a rotating member 9 is arranged in a valve body 3 in the embodiment, specifically, a gear member 16 is sleeved at a position of the rotating member 9 corresponding to the central axis of the float 12, a connecting portion 121 is arranged at the upper end of the float 12, the upper end of the corresponding connecting portion 121 is semi-circular and is matched with the outer diameter of the gear member 16, a plurality of racks 1211 matched with the gear member 16 are arranged on one side of the connecting portion 121, sliding blocks 1 are symmetrically arranged on the outer wall of the float 12, sliding rails 2 are correspondingly arranged on the inner wall of the valve body 3, the sliding blocks 1 and the sliding rails 2 are matched to ensure the stability of the vertical movement of the float 12, and gaps for vapor and liquid circulation are formed between other directions of the float 12 and the valve body 3; in the initial state, the float 12 is positioned at the lowest point of the height and the vent channel 61 of the valve core 6 is positioned at the largest opening under the action of gravity of the float 12 and the cooperation of the connecting part 121 and the gear piece 16, when liquid flows in from the liquid inlet 191 to gradually raise the liquid level in the valve body 3, the contact area of the float 12 and the liquid is gradually increased, so that the float 12 is subjected to buoyancy greater than the gravity of the float 12, the float 12 vertically moves upwards and drives the rotating part 9 and the plug 8 to rotate, when the connecting part 121 abuts against the inner wall of the valve cover 4, the plug 8 just plugs the vent hole 621, the vent valve is in a sealing state, when vapor accumulates in the vent valve, the liquid level in the valve body 3 drops, the float 12 vertically moves downwards, the plug 8 rotates by a certain angle to form a certain gap with the vent hole 621, the gas in the valve body 3 is discharged from the gap, the liquid level returns to the original state, the plug 8 rotates to the state of just plugging the vent hole 621, and the valve core 6 is controlled to switch between the venting state and the sealing state through the movement of the float 12 in the vertical direction.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An exhaust valve with filtering capability, its characterized in that: including valve body (3) and valve gap (4) that can dismantle sealing connection, valve body (3) lower extreme is equipped with intercommunicating pore (31), be equipped with on the inner wall of valve gap (4) and strain a section of thick bamboo (5), correspond on the outer wall and be equipped with installation department (41), be equipped with a plurality of first filtration pore (51) on the lateral wall of straining a section of thick bamboo (5), install one in installation department (41) and stretch to case (5) in case (6), be equipped with exhaust passage (61) in case (6), the tip that corresponds case (6) in valve gap (4) is equipped with rotary seal subassembly (7), rotary seal subassembly (7) include end cap (8), rotating member (9), connecting piece (10), one end spring (11), rotating member (9) one end and connecting piece (10) rotate to be connected, the other end stretch to straining a section of thick bamboo (5) in and with end cap (8) can dismantle fixed connection, one end spring (11) one end and inner wall rigid coupling, the other end and connecting piece (10) rigid coupling and drive end cap (8) to liquid level (6) terminal surface simultaneously, be equipped with in valve cap (3) corresponding case (6) end and can drive the end cap (12) through the vertical direction of rotation that can be moved up and down with float (12) in the end that can be equipped with in the rotating member (12) through the end that can be moved up-down with float (12) And simultaneously controls the valve core (6) to switch between an exhaust state and a sealing state.

2. An exhaust valve with filtering function according to claim 1, characterized in that: the filter is characterized in that a filter element (13) is arranged in the mounting part (41), a plurality of second filter holes (131) which are inclined downwards are formed in the end face, close to one side of the valve core (6), of the filter element (13) in parallel, a connector (14) for compressing the filter element (13) is screwed on the outer wall surface of the mounting part (41), a first sealing ring (15) is arranged between the connector and the connector, and an air outlet channel (141) is formed in the connector (14).

3. An exhaust valve with filtering function according to claim 2, characterized in that: the lowest point of the air outlet channel (141) is higher than any position of the second filter holes (131) arranged at the lowest point.

4. An exhaust valve with filtering function according to claim 1, characterized in that: the rotary part (9) is sleeved with a gear part (16) corresponding to the central axis of the floater (12), the upper end of the floater (12) is provided with a connecting part (121), one side of the connecting part (121) is provided with a plurality of racks (1211) matched with the gear part (16), the outer wall of the floater (12) is symmetrically provided with a sliding block (1), and the inner wall of the valve body (3) is correspondingly provided with a sliding rail (2).

5. An exhaust valve with filtering function according to claim 1 or 4, characterized in that: the contact ends of the rotating piece (9) and the connecting piece (10) are respectively provided with an annular bulge (91) and an annular groove (101) which are matched with each other.

6. An exhaust valve with filtering function according to claim 1, characterized in that: a shielding part (62) is arranged at one end, close to the plug (8), of the valve core (6), an exhaust port (621) is arranged below the shielding part (62), and the diameter of the exhaust port (621) is smaller than the inner radius of the valve core (6); the rotating shaft of the plug (8) and the central axis of the valve core (6) are in the same straight line, and the diameter of the contact surface with the shielding part (62) is between the diameter of the exhaust port (621) and the outer radius of one end, close to the plug (8), of the valve core (6).

7. An exhaust valve with filtering function according to claim 1, characterized in that: the valve is characterized in that the lower end of the valve body (3) is in threaded connection with a block valve body (17), a second sealing ring (18) is arranged between the block valve body and the valve body, a block valve core (19) is movably connected in the block valve body (17), and a plurality of liquid inlets (191) are uniformly formed in the side wall of the block valve core (19).

8. An exhaust valve with filtering function according to claim 7, characterized in that: a secondary spring (20) is arranged between the isolating valve body (17) and the isolating valve core (19).

9. An exhaust valve with filtering function according to claim 7 or 8, characterized in that: a filter screen (21) is further arranged in the isolating valve core (19).

10. An exhaust valve with filtering function according to claim 1, characterized in that: a conical sealing gasket (22) is arranged between the valve body (3) and the valve cover (4), and a third sealing ring (23) is arranged between the valve cover (4) and the valve core (6).