CN217265405U

CN217265405U - Stifled bubbler is prevented to water-cooled

Info

Publication number: CN217265405U
Application number: CN202220710484.9U
Authority: CN
Inventors: 蒋艾; 杜波; 杜阳灿
Original assignee: Mianyang Aijia Technology Co ltd
Current assignee: Mianyang Aijia Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-08-23
Anticipated expiration: 2032-03-29

Abstract

The utility model relates to the technical field of bubblers, and discloses a water-cooled anti-blocking bubbler, which comprises an outer tube, an inner tube, a bubbler head, a lower sealing head and an air tube; the lower end of the outer pipe is provided with a water outlet hole; the inner pipe is arranged between the outer pipe and the air pipe and used for forming an outer flow passage and an inner flow passage; the lower end of the bubbling head is fixedly connected with the upper end of the outer tube, and a gap is reserved between the bubbling head and the inner tube; the lower end of the bubbling head is provided with a conical butt joint hole communicated with the bubbling hole; the lower end enclosure is fixedly connected with the outer pipe and the inner pipe and used for sealing the lower ends of the outer flow passage and the inner flow passage; the lower seal head is provided with a water inlet hole which is communicated with the inner flow passage; the air pipe is arranged in the inner pipe, the upper end of the air pipe is inserted into the butt joint hole and communicated with the bubbling hole, and the lower end of the air pipe extends out of the lower end enclosure. The utility model provides a problem that the tympanic bulla hole of current bubbler is easily blockked up by the glass crystallization.

Description

Stifled bubbler is prevented to water-cooled

Technical Field

The utility model relates to a bubbler technical field specifically indicates a stifled bubbler is prevented to water-cooled.

Background

At present, in a glass melting furnace used in a medium borosilicate glass production line, a bubbler is generally used for improving the melting efficiency of glass and strengthening the clarification and homogenization of molten glass. The bubbler bubbles purified compressed gas into the molten glass from the bottom of the melting furnace to generate bubbles with certain pressure in the molten glass deep in the melting furnace, and the bubbles rapidly rise to the surface of the molten glass to be broken, absorb small bubbles in the molten glass in the rising process to rapidly grow up, stir the peripheral molten glass, and force the molten glass to be homogenized and clarified. Has obvious effects on improving the glass quality and the glass melting rate, saving energy and reducing emission.

For the existing bubbler, a bubbling head is made of a solid high-temperature-resistant bar material with the thickness of about 100 millimeters, and a central hole is formed to be in butt joint with an air pipe. However, the heat transfer effect of the bubbling head of the existing bubbler is poor, the temperature at the top of the bubbling head is high, so that the mobility of the glass liquid at the top of the bubbling head is high, after the high-pressure gas on the bubbling head is separated from the bubbling head, the bubbling head and the gas pipe can form short negative pressure, the high-mobility glass liquid can enter the bubbling head to flow downwards under the condition of short negative pressure, and the glass liquid is solidified and crystallized close to the water-cooling flow channel, so that the bubbling head is blocked by the solidified crystals of the glass liquid.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides a stifled bubbler is prevented to water-cooled has solved the easy problem that is blockked up of glass crystallization of tympanic bulla hole of current bubbler.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

a water-cooled anti-blocking bubbler comprises an outer pipe, an inner pipe, a bubbling head, a lower sealing head and an air pipe; the lower end of the outer pipe is provided with a water outlet hole; the inner pipe is arranged between the outer pipe and the air pipe and used for forming an outer flow passage and an inner flow passage; the lower end of the bubbling head is fixedly connected with the upper end of the outer tube, and a gap is reserved between the bubbling head and the inner tube; the lower end of the bubbling head is provided with a conical butt joint hole communicated with the bubbling hole; the lower end enclosure is fixedly connected with the outer pipe and the inner pipe and used for sealing the lower ends of the outer flow passage and the inner flow passage; the lower seal head is provided with a water inlet hole which is communicated with the inner flow passage; the air pipe is arranged in the inner pipe, the upper end of the air pipe is inserted into the butt joint hole and communicated with the bubbling hole, and the lower end of the air pipe extends out of the lower end enclosure.

Furthermore, the bubbling head is also provided with a connecting hole for communicating the bubbling hole with the butt-joint hole, and the aperture of the connecting hole is gradually reduced from top to bottom.

Furthermore, the upper end of the bubbling head is in a conical structure.

Furthermore, at least two convex edges are arranged on the conical surface at the upper end of the bubbling head, and the convex edges are circumferentially arranged around the bubbling hole.

Furthermore, the bubble holes are of an inverted cone structure.

Furthermore, the lower end of the bubbling head is provided with an annular arc-shaped groove around the butt joint hole.

Further, the dredging device also comprises a dredging structure, wherein the dredging structure comprises a dredging joint and a dredging pipe; the upper end of the dredging joint is fixedly connected with the lower end of the lower end enclosure, and an air inlet is formed in the side wall of the dredging joint; the side wall of the pipe section of which the upper part of the dredging pipe extends into the dredging joint is provided with a plurality of vent holes, and the tail end of the pipe section of which the lower part of the dredging pipe extends out of the dredging joint is provided with a valve;

wherein, the lower end of the air pipe is inserted into the dredging pipe and is movably connected with the dredging pipe.

Further, the valve is a ball valve.

Further, the lower end enclosure is connected with the air pipe through a sealing structure, and the sealing structure comprises a sealing groove, a sealing assembly and an end cover; the sealing groove is arranged at the bottom of the lower end enclosure; the sealing assembly comprises a plurality of sealing rings and flat gaskets which are alternately arranged, and the sealing rings and the flat gaskets are arranged on the air pipe; the end cover is fixedly connected with the sealing groove, and a through hole through which the air supply pipe passes is further formed in the end cover.

Furthermore, the lower end of the sealing groove is provided with an internal thread, and the end cover is fixedly connected with the sealing groove through the thread.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a shortened the solid portion length of tympanic bulla head, made the tympanic bulla head be flat structure, can strengthen the water-cooling effect, avoided because the first solid portion overlength of tympanic bulla leads to the problem of heat transfer effect variation. The bubbling head shortens, and the glass liquid near the bubbling head can be influenced by cold circulating water, becomes viscous and has small fluidity, and is not easy to enter the bubbling hole under the condition of short negative pressure to block the bubbling head.

Simultaneously, the bubbling head can improve the concentricity and the axiality of the assembly of the air pipe and the bubbling head by arranging the conical butt joint hole, the air pipe is conveniently guided to be inserted into the butt joint hole to complete the assembly of the air pipe and the bubbling head, and meanwhile, the subsequent use of the poker for dredging the bubbling hole can be facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. Wherein:

FIG. 1 is a schematic diagram of the external structure of a bubbler for producing medium borosilicate glass.

Fig. 2 is a schematic view of the internal structure of the bubbler for the production of medium borosilicate glass.

The water cooling device comprises a convex rib 1, a water cooling pipe 2, a bubble blowing hole 201, a connecting hole 202, a bubble blowing head 203, an outer pipe 204, an inner pipe 205, an outer flow passage 206, an inner flow passage 207, a water inlet 208, a lower sealing head 209, an end cover 210, a flat gasket 211, a sealing ring 212, a water outlet 213, a dredging structure 3, a dredging joint 301, an air inlet 302, an air vent 303, a dredging pipe 304, a valve 305 and an air pipe 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 to 2 are schematic structural views of a water-cooled anti-blocking bubbler according to some embodiments of the present invention, and the water-cooled anti-blocking bubbler according to the present invention will be described with reference to fig. 1 to 2. It should be noted that fig. 1-2 are only examples, and the specific shape and structure of the water-cooled anti-blocking bubbler is not limited.

Referring to fig. 1-2, in some embodiments, a water-cooled anti-blocking bubbler includes an outer tube 204, an inner tube 205, a bubbler head 203, a lower sealing head 209, and a gas tube 4; the lower end of the outer pipe 204 is provided with a water outlet hole 213; the inner tube 205 is disposed between the outer tube 204 and the air tube 4 to form an outer flow passage 206 and an inner flow passage 207; the lower end of the bubbling head 203 is fixedly connected with the upper end of the outer tube 204, and a gap is reserved between the bubbling head 203 and the inner tube 205; a bubbling hole 201 is formed in the bubbling head 203, and a conical butt joint hole communicated with the bubbling hole 201 is formed in the lower end of the bubbling head 203; the lower end enclosure 209 is fixedly connected with the outer pipe 204 and the inner pipe 205 and is used for closing the lower ends of the outer flow passage 206 and the inner flow passage 207; a water inlet hole 208 is formed in the lower end socket 209, and the water inlet hole 208 is communicated with the inner flow channel 207; the air pipe 4 is arranged in the inner pipe 205, the upper end of the air pipe 4 is inserted into the butt joint hole to be communicated with the air blowing hole 201, and the lower end of the air pipe 4 extends out of the lower end enclosure 209.

In this embodiment, since the high-temperature environment of the glass melting furnace may cause damage to the bubbling tube of the metal structure, the bubbler may be normally used in the high-temperature molten glass environment only by the cooling effect of the cooling water. The outer tube 204, the inner tube 205, the bubbling head 203 and the lower end socket 209 jointly form the water-cooling tube 2 comprising the inner flow channel 207 and the outer flow channel 206, so that the air tube 4 and the water-cooling tube 2 are cooled, and the normal use of the bubbler is ensured. Specifically, the cooling water enters the inner flow channel 207 from the water inlet 208 of the lower end enclosure 209, enters the outer flow channel 206 through the gap between the bubble head 203 and the inner tube 205, and finally flows out from the water outlet 213 on the outer tube 204. Under the structure, the water inlet hole 208 and the water outlet hole 213 can be arranged below the bubbler, so that the bubbler can be conveniently connected with a water supply mechanism.

Specifically, for the conventional bubbler, the bubbler head 203 is made of a solid high-temperature-resistant bar material with a thickness of about 100 mm, and is provided with a central hole to be butted with the air pipe 4. The improved structure of the bubble head 203 in this embodiment is a flat structure of only about 20 mm. Shortening the length of the solid part of the bubbling head 203 can enhance the water cooling effect, and prevent the solid part of the bubbling head 203 from being too long and the heat transfer effect from being deteriorated. Because the heat transfer effect of the bubbling head 203 of the existing bubbler becomes poor, the temperature at the top of the bubbling head 203 is high, so that the fluidity of the glass liquid at the top of the bubbling head 203 is high, after the high-pressure gas on the bubbling head 203 falls off the bubbling head 203, the bubbling head 203 and the gas pipe 4 can form transient negative pressure, the high-fluidity glass liquid can enter the bubbling head 203 to flow downwards under the condition of transient negative pressure, and the glass liquid is solidified by being close to a water-cooling flow channel, so that the bubbling hole 201 is blocked by the solidification of the glass liquid.

The bubbling head 203 is shortened, the glass liquid near the bubbling head 203 is influenced by cold circulating water, becomes viscous and has low fluidity, and is not easy to enter the bubbling holes 201 under the condition of short negative pressure to block the bubbling head 203.

Wherein, the first 203 of tympanic bulla is through setting up conical butt joint hole, conveniently guides trachea 4 to insert and to accomplish assembly between them in the butt joint hole, also can make things convenient for follow-up tracheal 4 and the first 203 of tympanic bulla to weld fixation simultaneously.

Meanwhile, the air pipe 4 is inserted into the butt joint hole to be connected with the bubbling head 203, so that the concentricity and the coaxiality of the air pipe 4 and the bubbling head 203 can be improved, and the welding of the outer pipe 204 and the subsequent dredging of the bubbling head 203 are facilitated.

Specifically, after the air tube 4 is inserted into the docking hole, the connection between the air tube 4 and the bubbling head 203 is fixed by welding and sealing.

In addition, during the use of the bubbler, the glass pit is sometimes stopped, and at this time, the glass liquid may enter the connecting pipe and cool to block the bubbling hole 201. Although the molten glass crystals are partially melted after the glass pit is restarted, the molten glass crystals in the connecting pipe are hardly completely melted due to the water cooling effect of the bubbler, resulting in the blockage of the bubbling hole 201.

At this moment, just need use the poker to dredge bubbling hole 201, because trachea 4 inserts in the butt joint hole, and the butt joint hole is the toper structure, the toper structure can conveniently guide the poker to stretch into bubbling hole 201, avoids the poker to be blockked by the butt joint hole stretching into the in-process, influences the mediation effect.

Preferably, the bubbling head 203 is further provided with a connecting hole 202 for connecting the bubbling hole 201 and the butt-joint hole, and the aperture of the connecting hole 202 is gradually reduced from top to bottom.

Wherein, if the glass liquid flows into the connecting hole 202 and is cooled and solidified under the action of cooling water, the dredging steel wire is inserted from the bubbler air pipe 4, and the cooled glass liquid is crystallized to be conical during dredging, so that the glass liquid is easily separated from the conical connecting hole 202 of the bubbling head 203 under the condition of stress, and the effect of dredging the pipeline is realized.

Therefore, the aperture of the connecting hole 202 is gradually reduced from top to bottom to form an inverted cone structure, so that the poker can be conveniently pushed out by crystallizing the glass liquid in the connecting hole 202, and the dredging effect of the poker is enhanced.

Preferably, the upper end of the bubble head 203 has a conical structure.

The head of the bubbling head 203 is tapered because in the process of replacing the bubbler, after an old bubbler is pulled out of a bubbling brick, glass can flow downwards from an opening of the bubbling brick at the bottom of the glass melting cellar, when glass liquid at the temperature as high as 1600 ℃ flows downwards, the opening of the bubbling brick at the bottom of the glass melting cellar must be blocked by a new bubbler as soon as possible, otherwise, the glass liquid flows faster, the high temperature formed by the flowing glass liquid can not be close to the operation, the bubbling brick and the bubbler have a gap of about 3 mm generally, the high-temperature operation is difficult to be aligned and blocked at one time, and safety accidents are easy to form.

Therefore, in the stage of installing or replacing the bubbler, the end of the bubbling head 203 is provided with the conical structure, so that the bubbler can be quickly aligned with the bubbling brick hole at the bottom of the glass melting cellar, the bubbler can be extended into the bubbling brick hole at the bottom of the glass melting cellar for installation, and the installing or replacing efficiency of the bubbler is improved.

Preferably, the conical surface of the upper end of the bubble head 203 is provided with at least two ribs 1, and the ribs 1 are circumferentially arranged around the bubble hole 201.

Wherein, for the replacement process of the bubbler, the specific process is as follows:

the bubbler dismounting process comprises the following steps: and closing a cooling water inlet valve of the bubbler to be replaced, and communicating a water outlet valve with the atmosphere. The compressed gas of the bubbler cannot be turned off; rotating the bubbler to enable the glass crystals on the bubbler and the hole wall to fall off, so that the bubbler is loosened and convenient to move downwards; slowly moving the bubbler downwards until the top of the bubbler is 150-200 mm away from the outlet of the inner hole of the bubbling brick at the bottom of the kiln pool; staying for 5-15 minutes, moving downwards again, moving downwards for 20mm each time, and staying for 5 minutes after moving each time; after moving, preliminarily judging whether the glass liquid is encrusted or not and whether the top of the bubbler is separated from the glass liquid or not through the downward moving force; after the initial judgment is carried out, marking is carried out, the bubbler is moved downwards for 10mm again, then the bubbler is moved upwards again, whether the bubbler can return to the position before the movement is observed, and if the bubbler can return to the original position, the glass is proved to be encrusted; and (4) drawing out the bubbler from the hole in the middle of the bubbling brick, and detaching the bubbler to be replaced.

The assembly process of the bubbler comprises the following steps: before the bubbler to be replaced is inserted into the opening of the bubbling brick of the cellar, gas for bubbling is started, and cooling water is started; wrapping the bubbling bricks with heat-insulating cotton, and insulating for 15-30 minutes; the bubbler is quickly lifted back to the original operating position. Observing the operation of the bubbler and the water temperature for 30 minutes; the process is informed to adjust the pressure of the bubbling gas and record the water temperature, and all the conditions normally indicate that the replacement is finished.

Can know from the change process of above-mentioned bubbler, when the bubbler was changed, in order to prevent that the glass liquid in the glass melting cellar from flowing out in the mounting hole along with demolising of bubbler, utilized glass at low temperature crystallization solidification, high temperature melting's principle, before the bubbler took out from cellar for storing things bottom cellar for storing things pond brick, made the glass liquid surface that flows from bubbling brick trompil earlier and influenced the crystallization into the shell by the temperature, guaranteed that glass water can not flow the back and change the bubbler again. This may prevent the bubbler from being pushed up into the pit due to the barrier of the crystallization of the cooled molten glass when a new bubbler is inserted.

Consequently, this embodiment sets up bead 1 structure through the upper end conical surface at tympanic bulla head 203, and at bubbler insertion process, utilize the rotatory destructiveness that drives 1 rotatory production of bead of tympanic bulla pipe, break into little glass piece to the glass liquid crystal that solidifies, fall out from the clearance of tympanic bulla pipe and cellar for storing things pond brick, reach the effect of clearance cellar for storing things pond tympanic bulla brick trompil, make the bubbler can impel smoothly in the glass molten bath.

Specifically, the ribs 1 are arranged in a circular and equidistant manner around the hole 201.

Preferably, the drum cell 201 has an inverted cone structure.

The inverted cone-shaped bubble hole 201 can increase the bubble volume and enhance the bubbling effect.

Specifically, the bubbling holes 201 are 120-degree inverted cone-shaped flared openings. It is found through experiments that the larger the diameter of the gas outlet of the bubble hole 201, the larger the value of the gas flow velocity, the larger the diameter of the bubble formed in the molten glass, and the size of the bubble formed by the gas is positively correlated with the above factors. However, the larger the vent hole is, the negative pressure at the vent hole formed at the moment when the bubble leaves the vent hole will cause the glass liquid to flow into the bubble hole 201, so through the inverted cone-shaped horn mouth, the size of the bubble is solved, and the problem of blockage of the bubble hole 201 is also solved.

Preferably, the lower end of the bubble head 203 is provided with an annular arc-shaped groove around the butt hole. The bottom of the annular inner arc is just right at the welding point of the bubbling head 203 and the air pipe 4, and after the pipeline is filled with circulating cold water, the welding line is just submerged when being cooled, so that the cooling effect of the welding line is good, and the welding line is ensured to be free from cracking at the rear of high temperature.

Specifically, the bubble head 203 is welded and sealed with the outer tube 204.

Specifically, the lower end plate 209 is welded and sealed with the outer pipe 204 and the inner pipe 205.

Preferably, the lower end of the bubble head 203 is provided with a conical butt-joint hole, and the upper end of the air tube 4 is inserted into the butt-joint hole to be fixedly connected with the bubble head 203.

Preferably, the lower end socket 209 is connected with the gas pipe 4 through a sealing structure, and the sealing structure comprises a sealing groove, a sealing assembly and an end cover 210; the sealing groove is arranged at the bottom of the lower end enclosure 209; the sealing assembly comprises a plurality of sealing rings 212 and flat gaskets 211 which are alternately arranged, and the sealing rings 212 and the flat gaskets 211 are sleeved on the air pipe 4; the end cover 210 is fixedly connected with the sealing groove, and a through hole through which the air supply pipe 4 passes is further formed in the end cover 210.

In the conventional bubbler, the sealing structure of the bubbler generally cooperates with a plurality of sealing rings 212, the plurality of sealing rings 212 are used for enhancing the sealing performance, and a single sealing ring 212 is easy to cause cooling water leakage. Although a plurality of sealing rings 212 can ensure the sealing effect, the sealing rings 212 are pulled by the water cooling pipe 2 and the air pipe 4 which move relatively due to the relative movement between the water cooling pipe 2 and the air pipe 4, so that the sealing rings 212 are intertwined, and the sealing structure fails.

Seal structure in this embodiment is through add flat pad 211 between sealing washer 212, and flat pad 211 can separate sealing washer 212, and when water-cooled tube 2 and trachea 4 pulled sealing washer 212, sealing washer 212 can not take place to entangle to guarantee sealed effect, avoid seal structure inefficacy. Meanwhile, when the water-cooling pipe 2 and the air pipe 4 pull the flat gasket 211, the sealing ring 212 can be extruded, and the sealing ring 212 is extruded to be tightly attached to the air pipe 4 and the sealing groove, so that the sealing effect is enhanced.

When the sealing ring 212 fails, the end cover 210 is detached, the sealing ring 212 and the flat gasket 211 in the sealing groove are taken down, a new sealing ring 212 and a new flat gasket 211 are sleeved on the air pipe 4 and then pushed into the sealing groove, and then the end cover 210 is mounted, so that the replacement and maintenance can be completed.

Preferably, the lower end of the sealing groove is provided with an internal thread, and the end cover 210 is fixed to the sealing groove through a threaded connection.

Wherein, threaded connection's end cover 210 is connected stably with the seal groove, easy dismounting.

In addition, the end cap 210 connected by the thread can apply pressure to the sealing ring 212 and the flat gasket 211 in the screwing process, so that the sealing ring 212 can be tightly attached to the inner wall of the air pipe 4 and the sealing groove, and the sealing effect is ensured.

Referring to fig. 2, in some embodiments, the dredging structure 3 is further included, and the dredging structure 3 includes a dredging joint 301 and a dredging pipe 304; the upper end of the dredging joint 301 is fixedly connected with the lower end of the lower end socket 209, and an air inlet hole 302 is formed in the side wall of the dredging joint 301; a plurality of vent holes 303 are arranged on the side wall of the pipe section, the upper part of the dredging pipe 304 extends into the dredging joint 301, and the tail end of the pipe section, the lower part of the dredging pipe 304 extends out of the dredging joint 301, is provided with a valve 305;

wherein, the lower end of the air pipe 4 is inserted into the dredging pipe 304 and is movably connected with the dredging pipe 304.

In this embodiment, when the conventional bubbler needs to dredge the bubbling hole 201 by using the poker, the bubbler needs to be stopped, then the connection between the air pipe 4 and the air supply mechanism is removed, and then the poker is inserted into the air pipe 4 to dredge.

In the dredging structure 3 in the embodiment, when the bubbler is in a normal use state, the valve 305 is closed, an air chamber is formed between the dredging joint 301 and the water cooling pipe 2, and air is supplied by connecting the air inlet hole 302 of the dredging joint 301 with an air supply mechanism. After entering the gas chamber, the high-pressure gas enters the gas pipe 4 through the vent holes 303 on the dredging pipe 304 to supply gas for the bubbling holes 201.

When the bubbling hole 201 needs to be dredged by using the poker, the air supply mechanism does not need to be closed, and the air supply part does not need to be disassembled and assembled. Only by opening the valve 305 on the dredging pipe 304 and extending the dredging strip from the dredging pipe 304, the dredging strip can be extended into the air pipe 4 to dredge the hole 201 of the drum.

Through setting up mediation structure 3 for whole mediation operation process is simple more, convenient, has improved bubbler mediation operating efficiency.

Wherein, the trachea 4 inserts in dredging pipe 304, when the trachea 4 acutely changes at bubbler outside temperature, the trachea 4 can be twitched in dredging pipe 304, prevents that the trachea 4 from being drawn the stress effect, leads to the welding position of trachea 4 and water-cooling pipe 2 to be pulled and cracked and leak.

Specifically, the dredging pipe 304 is movably connected with the air pipe 4, and the air pipe 4 can be telescopically moved in the dredging pipe 304.

Specifically, the valve 305 is a ball valve.

The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly representing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model, the patent protection scope of the utility model still takes the claims as the standard, and all the equivalent structural changes made by using the contents of the specification and the drawings of the utility model should be included in the protection scope of the utility model.

Claims

1. A water-cooled anti-blocking bubbler, comprising:

the lower end of the outer pipe is provided with a water outlet;

the inner pipe is arranged between the outer pipe and the air pipe and used for forming an outer flow passage and an inner flow passage;

the lower end of the bubbling head is fixedly connected with the upper end of the outer pipe, and a gap is reserved between the bubbling head and the inner pipe; a bubbling hole is formed in the bubbling head, and a conical butt joint hole communicated with the bubbling hole is formed in the lower end of the bubbling head; the bubbling head is a flat structure with the length of 20 mm;

the lower end socket is fixedly connected with the outer pipe and the inner pipe and used for sealing the lower ends of the outer flow passage and the inner flow passage; a water inlet hole is formed in the lower end enclosure and is communicated with the inner flow channel;

the air pipe is arranged in the inner pipe, the upper end of the air pipe is inserted into the butt joint hole and communicated with the bubbling hole, and the lower end of the air pipe extends out of the lower end enclosure.

2. The water-cooled anti-clogging bubbler according to claim 1, wherein:

the bubbling head is also provided with a connecting hole for communicating the bubbling hole with the butt joint hole, and the aperture of the connecting hole is gradually reduced from top to bottom.

3. The water-cooled anti-clogging bubbler according to claim 1, wherein:

the upper end of the bubbling head is in a conical structure.

4. The water-cooled anti-clogging bubbler according to claim 3, wherein:

at least two convex edges are arranged on the conical surface at the upper end of the bubble blowing head, and the convex edges surround the bubble blowing holes and are circumferentially arranged.

5. The water-cooled anti-clogging bubbler according to claim 1, wherein:

the bulging hole is of an inverted cone structure.

6. The water-cooled anti-clogging bubbler according to claim 1, wherein:

and the lower end of the bubbling head is provided with an annular arc-shaped groove around the butt joint hole.

7. The water-cooled anti-clogging bubbler according to claim 1, further comprising a dredging structure, wherein the dredging structure comprises:

the upper end of the dredging joint is fixedly connected with the lower end of the lower end enclosure, and an air inlet is formed in the side wall of the dredging joint;

the upper part of the dredging pipe extends into the side wall of the pipe section in the dredging joint, a plurality of vent holes are arranged on the side wall of the pipe section, and the lower part of the dredging pipe extends out of the dredging joint;

wherein, the trachea lower extreme inserts in the mediation pipe to with dredge pipe swing joint.

8. The water-cooled anti-clogging bubbler according to claim 7, wherein:

the valve is a ball valve.

9. The water-cooled anti-blocking bubbler according to claim 1, wherein the lower head is connected to the gas pipe through a sealing structure, the sealing structure comprising:

the sealing groove is formed at the bottom of the lower end enclosure;

the sealing assembly comprises a plurality of alternately arranged sealing rings and flat gaskets, and the sealing rings and the flat gaskets are sleeved on the air pipe;

the end cover is fixedly connected with the sealing groove, and a through hole for the air pipe to pass through is further formed in the end cover.

10. The water-cooled anti-clogging bubbler according to claim 9, wherein:

the lower end of the sealing groove is provided with internal threads, and the end cover is fixedly connected with the sealing groove through threads.