CN214534677U

CN214534677U - Exhaust valve

Info

Publication number: CN214534677U
Application number: CN202023125837.9U
Authority: CN
Inventors: 董服义
Original assignee: Individual
Current assignee: Yuhuan Dazhong Copper Industry Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-29
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses an exhaust valve, which comprises a valve body, a valve body and a valve body, wherein the valve body is provided with a medium flow passage for medium circulation; the liquid inlet channel is arranged in the valve body; the liquid outlet channel is arranged in the valve body; the ceramic valve core is detachably arranged in the medium flow channel and is in butt fit with the inner wall of the medium flow channel; the exhaust channel is communicated with the medium flow channel and is vertical to the liquid inlet channel; the temperature measuring channel is arranged on the valve body and is communicated with the exhaust channel; the ceramic valve core is detachably arranged in the medium flow channel, and a sealing piece on the ceramic valve core is matched with the inner wall of the valve body to realize sealing, so that the use is convenient, the operation is easy, the structure of the valve body is simple, and the processing procedure of the valve body is simplified; the ceramic valve core is easy to replace and convenient to use; the ceramic valve core is not easy to leak due to the characteristics of high temperature resistance and corrosion resistance, and has long service life; a temperature measuring channel is arranged for a temperature measuring or pressure measuring instrument, and the pipeline structure is simplified.

Description

Exhaust valve

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to an exhaust valve.

Background

The water separator is mainly responsible for opening and closing the water flow in a ground heating loop in the ground heating system, when water in the gas boiler flows into the water separator through a main pipeline, impurities are isolated through the filter, then the water is evenly distributed into the loop, the water returns to the water collecting return main lever after heat exchange, and then the water flows into the heating system through the water return port, a drain valve, an exhaust valve and the like are generally installed in the water separator, and the exhaust valve is used for discharging gas in a pipeline.

The existing exhaust valve mainly adopts the mode that sealing rubber is arranged in a valve body and is matched and sealed with a metal valve core, the exhaust valve is in a closed state when not used, and plastic deformation of the sealing rubber is caused by long-term compression, so that the valve core is tightly sucked and is not easy to open, and the use is inconvenient; in addition, when the valve body is processed, the sealing rubber and the valve core are required to be arranged in the valve body together, so that the structural design of the valve body is complex, the processing process is complicated, the sealing rubber and the valve core in the valve body are not easy to replace, and only the exhaust valve can be replaced if leakage occurs, thereby causing economic loss; the water in the pipeline system corrodes the metal surface and is used at high temperature, so that the corrosion speed is accelerated, and the leakage phenomenon caused by untight sealing is easy to occur. In addition, a temperature measuring or pressure measuring instrument is usually arranged in the water separator to measure the temperature and the pressure of the liquid in the pipeline, but the temperature measuring or pressure measuring instrument is installed independently, so that the installation is inconvenient, and the complexity of the pipeline is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a discharge valve who facilitates use.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an exhaust valve comprises

A valve body having a medium flow passage through which a medium flows;

the liquid inlet channel is arranged in the valve body;

the liquid outlet channel is arranged in the valve body and is vertical to the liquid inlet channel;

the ceramic valve core is detachably arranged in the medium flow channel and is in butt fit with the inner wall of the medium flow channel;

the exhaust channel is communicated with the medium flow channel and is vertical to the liquid inlet channel;

and the temperature measuring channel is arranged on the valve body and is communicated with the exhaust channel.

The ceramic valve core is detachably arranged in the medium flow channel and is communicated with the liquid inlet cavity and the gas outlet cavity, after the ceramic valve core is installed on the valve body, a sealing piece on the ceramic valve core is matched with the inner wall of the valve body to realize sealing, and the ceramic valve core is opened and closed by depending on the structure of the ceramic valve core, so that the ceramic valve core is convenient to use and easy to operate; the valve body is not required to be additionally provided with a sealing element to be matched with the valve body, so that the valve body is simple in structure, and the processing procedure of the valve body is simplified; the ceramic valve core is movably connected with the valve body, so that the ceramic valve core is easy to replace and convenient to use; the ceramic valve core is resistant to high temperature and corrosion, so that the ceramic valve core is not easy to deform and leak during use and has long service life; the temperature measurement channel is arranged and used for measuring temperature or a pressure measuring instrument, the installation is convenient, the temperature measurement or pressure measuring instrument and the exhaust valve are integrated into a whole, and the pipeline structure is simplified.

Preferably, the included angle between the axis of the temperature measuring channel and the axis of the exhaust channel is 0-90 degrees.

Preferably, a branch pipe is arranged on the valve body, and the exhaust channel and the temperature measuring channel are formed on the branch pipe; the exhaust channel and the temperature measuring channel are formed on the branch pipe, so that the pipeline structure is simplified.

Preferably, the temperature measuring channel is movably connected with a temperature measuring meter or a body surface for measuring temperature and pressure; and arranging a temperature meter or measuring temperature and pressure on the surface of the body to measure the temperature and pressure of the flowing medium.

Preferably, the liquid inlet end of the ceramic valve core is communicated with the liquid inlet channel, one liquid outlet end of the ceramic valve core is communicated with the liquid outlet channel, and the other liquid outlet end of the ceramic valve core is communicated with the exhaust channel; the liquid outlet end of the ceramic valve core is communicated with the liquid outlet channel and the exhaust channel, and the communication mode is matched with the characteristics of the ceramic valve core, so that the circulation of media in the valve body is ensured.

Preferably, the medium flow passage and the medium flow passage are internally provided with a blocking part, and after the ceramic valve core is connected with the valve body, the ceramic valve core is abutted against the blocking part; a stopper is provided to abut against the sealing member to close the medium flow path.

Preferably, the liquid outlet end of the liquid outlet channel is provided with internal threads, the liquid outlet channel is screwed with a plug, and a first sealing ring is arranged between the plug and the valve body; and after the drainage is finished, the plug is connected with the valve body to seal the liquid outlet channel so as to prevent residual liquid in the liquid outlet channel from flowing out.

Preferably, the liquid outlet end of the liquid outlet channel is provided with external threads, the liquid outlet channel is screwed with a blocking cap, a second sealing ring is arranged in the blocking cap, the blocking cap is provided with a connecting band, and the other end of the connecting band is connected with the valve body; the blocking cap is arranged, and after the drainage is finished, the blocking cap is connected with the valve body to seal the liquid outlet channel and prevent residual liquid in the liquid outlet channel from flowing out.

Preferably, the branch pipe swing joint has the exhaust seat, be equipped with out the air cavity in the exhaust seat, go out the air cavity with exhaust passage intercommunication, just the tip in air cavity is equipped with the valve gap, just be equipped with the control on the exhaust seat and give vent to anger the intracavity gas outgoing's exhaust subassembly.

Preferably, the exhaust assembly comprises a float bowl arranged in the air outlet cavity, a rod body connected with the float bowl, an exhaust member arranged on the valve cover, a sealing plug arranged on the rod body, and the rod body is connected with the exhaust member through an elastic member; and an exhaust assembly is arranged, and the air outlet is controlled to automatically exhaust after the air pressure at the air outlet end of the air outlet cavity reaches a set value.

To sum up, the utility model is provided with the ceramic valve core, can be detachably arranged in the medium flow passage and is communicated with the liquid inlet cavity and the gas outlet cavity, after being arranged on the valve body, the sealing element on the ceramic valve core is matched with the inner wall of the valve body to realize sealing, and the sealing element is opened and closed by depending on the structure of the sealing element, thereby having convenient use and easy operation; the valve body is not required to be additionally provided with a sealing element to be matched with the valve body, so that the valve body is simple in structure, and the processing procedure of the valve body is simplified; the ceramic valve core is movably connected with the valve body, so that the ceramic valve core is easy to replace and convenient to use; the ceramic valve core is resistant to high temperature and corrosion, so that the ceramic valve core is not easy to deform and leak during use and has long service life; the temperature measurement channel is arranged and used for measuring temperature or a pressure measuring instrument, the installation is convenient, the temperature measurement or pressure measuring instrument and the exhaust valve are integrated into a whole, and the pipeline structure is simplified.

Drawings

Fig. 1 is a perspective view of a mounting closure according to an embodiment of the present invention.

Fig. 2 is a perspective view of the first embodiment of the present invention, showing a temperature and pressure measuring integrated meter and an exhaust seat.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an exploded view of an exhaust assembly according to a first embodiment of the present invention.

Fig. 5 is a schematic diagram illustrating a partial explosion of an exhaust assembly according to a first embodiment of the present invention.

Fig. 6 is a perspective view of a second embodiment of the present invention.

Detailed Description

In order to make the technical field personnel understand the utility model discloses the scheme, will combine the drawing in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model carries out clear, complete description.

Example one

As shown in fig. 1 to 5, an exhaust valve includes a valve body 10, a medium flow passage 11, a liquid inlet passage 12, a liquid outlet passage 13, a ceramic valve core 20 and a valve handle 14; the valve body 10 is a metal piece made of stainless steel or brass, the medium flow channel 11 is formed in the valve body 10, and the medium flow channel 11 is a through cavity; the valve body 10 is provided with a liquid outlet channel 13 and a liquid inlet channel 12, wherein the liquid outlet channel 13 is vertical to the liquid inlet channel 12, and the outer wall of the liquid inlet channel 12 is provided with a first connecting end 15 with external threads; the ceramic valve core 20 is detachably arranged in the medium flow channel 11, the liquid inlet end of the ceramic valve core 20 is communicated with the liquid inlet channel 12, one liquid outlet end of the ceramic valve core 20 is communicated with the liquid outlet channel 13, and the end part of the ceramic valve core 20 is in butt fit with the inner wall of the medium flow channel 11; the valve handle 14 is rotatably disposed on the valve body 10 and is used for controlling the opening and closing of the ceramic valve core 20.

Further, a branch pipe 16 is arranged on the valve body 10, and an exhaust channel 161 and a temperature measuring channel 162 are formed in the branch pipe 16; the exhaust channel 161 is communicated with the medium channel 11, the exhaust channel 161 is perpendicular to the liquid inlet channel 12, the axis of the exhaust channel 161 is coincident with the axis of the liquid outlet channel 13, and the other liquid outlet end of the ceramic valve core 20 is communicated with the exhaust channel 161; the temperature measuring channel 162 is communicated with the exhaust channel 161, and the included angle between the axis of the temperature measuring channel 162 and the axis of the exhaust channel 161 is 0-90 degrees.

Further, a pushing piece 151 screwed with the first connecting end 15 is further arranged on the first connecting end 15, and a first sealing ring 152 is abutted to one side, facing the liquid inlet end of the medium flow channel 11, of the pushing piece 151; after the first connection end 15 is connected to the liquid inlet pipeline, the pushing element 151 is screwed to move the pushing element 151 to the side away from the valve handle 14, so that the first sealing ring 152 is pushed to move to the position abutting against the external pipeline, and the first sealing ring 152 is pressed by the pushing element 151 and the external pipeline to form a seal.

Further, a second connecting end 17 with internal threads is arranged on the inner wall of the liquid outlet end of the liquid outlet channel 13, a plug 171 is screwed on the second connecting end 17, and a first sealing ring 172 is arranged between the plug 171 and the valve body 10; after the drainage of the drain valve is completed, the plug 171 is connected with the valve body 10 to close the liquid outlet channel 13, so as to prevent the residual liquid in the liquid outlet channel 13 from flowing out.

Further, the ceramic spool 20 includes a spool case 21, a rotary spool 22, a first seal 23 and a second seal 24; the upper part of the outer wall of the valve core shell 21 is provided with an external thread which is in threaded connection with the valve body 10; the rotatable part of the rotary core 22 is arranged on the valve core shell 21 and used for controlling the opening and closing of the ceramic valve core 20, and the valve handle 14 is connected with the rotary core 22 in a rotation stopping manner; the first sealing element 23 is arranged at the end part of the valve core shell 21; the second sealing member 24 is sleeved on the valve core housing 21, and after the valve core housing 21 is screwed with the valve body 10, the second sealing member 24 is pressed to form a seal, so that liquid is prevented from flowing out from a gap between the valve core housing 21 and the valve body 10.

Further, a blocking portion 111 is arranged on the inner wall of the medium flow passage 11, the blocking portion 111 is a convex ring formed by partial recess formed on the inner wall of the medium flow passage 11113, and after the ceramic valve core 20 is installed in place, the first sealing member 23 is abutted and matched with the blocking portion 111 to achieve sealing.

Further, a filter screen 4 is sleeved on the ceramic valve core 20 and used for filtering impurities in the circulating medium and preventing the air outlet from being blocked.

When the use condition of exhaust and temperature measurement is not needed, the exhaust channel 161 and the temperature measurement channel 162 are movably connected with the closing plugs 5 to plug the exhaust channel 161 and the temperature measurement channel 162, so that the leakage of a circulating medium is prevented.

When the pipeline needs to exhaust, the exhaust seat 18 is movably connected to the branch pipe 16, an air outlet cavity 181 is arranged in the exhaust seat 18, a through hole 182 is arranged on one side of the exhaust seat 18, which faces the exhaust channel 161, the air outlet cavity 181 is communicated with the exhaust channel 161 through the through hole 182, and an exhaust assembly for controlling the exhaust of air in the air outlet cavity 181 is arranged on the exhaust seat 18.

Further, a valve cover 19 is arranged at the end part of the air outlet cavity 181, the valve cover 19 is in threaded connection with the upper part of the valve body 10, a second sealing ring 191 is arranged in the valve cover 19, and sealing is formed after the valve cover 19 is connected with the valve body 10; a boss 192 is provided on a side wall of the valve cap 19, the boss 192 is integrally formed with the valve cap 19, and the boss 192 communicates with the inside of the valve cap 19.

Specifically, the exhaust assembly includes a float 30, a rod body 31, an exhaust member 33, a sealing plug 32 and an elastic member 34, the float 30 is disposed in the air outlet cavity 181, the float 30 is a conventional plastic column, a guide column 301 is disposed at the bottom of the float 30, the guide column 301 slidably passes through the through hole 182, a hook structure is disposed on the float 30, the hook structure includes a groove 302 and a connecting rod 303, the groove 302 is a groove disposed at the upper portion of the float 30, the connecting rod 303 is a cross rod integrally formed with the float 30, and the connecting rod 303 is disposed in the groove 302.

Wherein the rod 31 is a round rod made of brass, the rod 31 is partially inserted into the groove 302, and a protrusion 311 is disposed at an end of the rod 31, the protrusion 311 contacts with a sidewall of the connecting rod 303, so that the protrusion 311 ensures that the rod 31 and the buoy 30 can be stably connected; the sealing plug 32 is made of rubber and is detachably connected with one end of the rod body 31 through an inserting structure.

A connecting part 312 is arranged at the end part of the rod body 31, the connecting part 312 is a part with screw threads on the rod body 31, the elastic piece 34 is screwed with the connecting part 312, and the elastic piece 34 is a spring; the exhaust member 33 is a metal member, a vent hole is formed in the middle of the exhaust member 33, the gas in the valve body 101 can be exhausted from the vent hole, a threaded portion 331 is formed on the exhaust member 33, the threaded portion 331 is a portion with threads, and the other end of the elastic member 34 is in threaded connection with the threaded portion 331, so that when the buoyancy of water reaches a certain height, the float 30 blocks the vent hole by the sealing plug 32; a fixing part 332 screwed with the inner wall of the boss 192 is provided on the exhaust member 33, and a rotation stopping part 332 is provided on the fixing part 332, wherein the rotation stopping part 332 is a groove whose inner wall is a plane; the cap 35 is screwed on the boss 192, the cap 35 is a metal cap, the cap 35 is provided with an air outlet 13, the gas discharged from the vent hole can be discharged from the air outlet 13, and a third sealing ring 36 is arranged between the cap 35 and the boss 192.

Under the condition that the temperature of the circulating medium in the pipeline needs to be measured, the temperature measuring and pressure measuring integrated body surface 6 is movably connected to the temperature measuring channel 162, and the temperature and the pressure of the circulating medium are measured.

Example two

As shown in fig. 6, the present embodiment is different from the first embodiment in that: in this embodiment, a second connection end 17 with an external thread is arranged on the outer wall of the liquid outlet end of the liquid outlet channel 13, a blocking cap 173 is screwed on the second connection end 17, a second sealing ring 174 is arranged in the blocking cap 173, and after the blocking cap 173 is connected with the valve body 10, the second sealing ring 174 is pressed by the blocking cap 173 and the valve body 10 to form a seal; the plug cap 173 is provided with a connecting band 175, and the other end of the connecting band 175 is connected with the valve body 10; after the drain valve finishes draining, the blocking cap 173 is connected with the valve body 10 to close the liquid outlet channel 13, and the residual liquid in the liquid outlet channel 13 is prevented from flowing out.

Further, the blocking cap 173 has an internal thread, the second sealing ring 174 is provided with a plurality of clamping portions along the circumferential direction, and after the second sealing ring 174 is placed into the blocking cap 173, the clamping portions are clamped into the internal thread to limit the second sealing ring 174, so that the second sealing ring 174 is not easy to drop.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. An exhaust valve characterized by: comprises that

A valve body (10) having a medium flow passage (11) through which a medium flows;

a liquid inlet channel (12) arranged in the valve body (10);

the liquid outlet channel (13) is arranged in the valve body (10), and the liquid outlet channel (13) is vertical to the liquid inlet channel (12);

the ceramic valve core (20) is detachably arranged in the medium flow channel (11), and the ceramic valve core (20) is in butt fit with the inner wall of the medium flow channel (11);

an exhaust passage (161) communicating with the medium flow passage (11), the exhaust passage (161) being perpendicular to the intake passage (12);

and the temperature measuring channel (162) is arranged on the valve body (10), and the temperature measuring channel (162) is communicated with the exhaust channel (161).

2. A vent valve according to claim 1, wherein: the included angle between the axis of the temperature measuring channel (162) and the axis of the exhaust channel (161) is 0-90 degrees.

3. A vent valve according to claim 1, wherein: a branch pipe (16) is arranged on the valve body (10), and the exhaust channel (161) and the temperature measuring channel (162) are formed on the branch pipe (16).

4. A vent valve according to claim 1, wherein: the temperature measuring channel (162) is movably connected with a temperature measuring and pressure measuring body surface (6) or a temperature measuring meter.

5. A vent valve according to claim 1, wherein: the liquid inlet end of the ceramic valve core (20) is communicated with the liquid inlet channel (12), one liquid outlet end of the ceramic valve core (20) is communicated with the liquid outlet channel (13), and the other liquid outlet end of the ceramic valve core (20) is communicated with the exhaust channel (161).

6. A vent valve according to claim 1, wherein: the medium flow channel (11) is internally provided with a blocking part (111), and after the ceramic valve core (20) is connected with the valve body (10), the ceramic valve core (20) is abutted to the blocking part (111).

7. A vent valve according to claim 1, wherein: an internal thread is arranged at the liquid outlet end of the liquid outlet channel (13), a plug (171) is screwed in the liquid outlet channel (13), and a first sealing ring (172) is arranged between the plug (171) and the valve body (10).

8. A vent valve according to claim 1, wherein: the liquid outlet end of the liquid outlet channel (13) is provided with an external thread, the liquid outlet channel (13) is screwed with a blocking cap (173), a second sealing ring (174) is arranged in the blocking cap (173), a connecting band (175) is arranged on the blocking cap (173), and the other end of the connecting band (175) is connected with the valve body (10).

9. A vent valve according to claim 3, wherein: the exhaust device is characterized in that the branch pipe (16) is movably connected with an exhaust seat (18), an air outlet cavity (181) is arranged in the exhaust seat (18), the air outlet cavity (181) is communicated with the exhaust channel (161), a valve cover (19) is arranged at the end part of the air outlet cavity (181), and an exhaust assembly for controlling the exhaust of air in the air outlet cavity (181) is arranged on the exhaust seat (18).

10. A vent valve according to claim 9, wherein: the exhaust assembly comprises a float bowl (30) arranged in the air outlet cavity (181), a rod body (31) connected with the float bowl (30), an exhaust part (33) arranged on the valve cover (19), a sealing plug (32) arranged on the rod body (31), and the rod body (31) is connected with the exhaust part (33) through an elastic part (34).