CN218935553U - Waste gas conveying connecting pipe - Google Patents

Abstract

The utility model provides an exhaust gas conveying connecting pipe, which comprises an outer pipe and an inner pipe, wherein the inner pipe is arranged on the same axis as the outer pipe, an interlayer is arranged in the inner pipe, the pipe walls at two ends of the inner pipe are also connected with a water inlet pipe and a water outlet pipe which are communicated with the interlayer through threads, and the outer pipe is provided with through holes for the water inlet pipe and the water outlet pipe to pass through respectively; the two ends of the outer tube are respectively connected with first connecting discs in a threaded manner, the two ends of the inner tube are respectively connected with second connecting discs in a threaded manner, annular steps for accommodating one of the second connecting discs are respectively concavely arranged on one side of the two first connecting discs, and screw holes encircling the annular steps are formed in the first connecting discs. The utility model solves the problems that the cooling water pipe is inconvenient to clean and the cooling effect is affected in the prior art.

Description

Waste gas conveying connecting pipe

Technical Field

The utility model relates to the technical field of conveying connecting pipes, in particular to an exhaust gas conveying connecting pipe.

Background

When the waste gas is treated, the waste gas is required to be conveyed to waste gas treatment equipment by using a pipeline, and in the prior art, part of the waste gas is often required to be conveyed by using a longer pipeline due to higher temperature, so that the waste gas enters the waste gas treatment equipment after the temperature of the waste gas is reduced in the conveying process. In the prior art, the temperature of the waste gas can be reduced by adopting a cooling structure arranged in the conveying pipeline, so that the cooling efficiency is improved. The utility model of China with publication number CN214889519U discloses an exhaust gas conveying pipe for environmental protection equipment, comprising a conveying pipe; the two ends of the conveying pipe are provided with mounting flanges, the two ends of the mounting flanges are welded at the two ends of the conveying pipe, the upper end of the mounting flanges is provided with screw holes, one end of the conveying pipe is provided with a cooling water pipe, the cooling water pipe is welded at the inner position of the conveying pipe, the cooling water pipe one end is provided with the inlet tube, the cooling water pipe other end is provided with the outlet pipe, inlet tube and outlet pipe welding are in cooling water pipe upper end position, inlet tube and outlet pipe stretch out the conveyer pipe, inlet tube and outlet pipe welding are in conveyer pipe upper end position. When the conveying pipe conveys waste gas, cold water is led into the cooling water pipe through the water inlet pipe, the waste gas is cooled through the cold water, and water after heat absorption is led out through the water outlet pipe, so that a good cooling function can be achieved, but the cooling water pipe in the interior is inconvenient to detach and clean after pollutants are attached (the waste gas does not contain particle impurities, the particle impurities possibly adhere to the cooling water pipe, and the cooling effect is influenced after the particle impurities adhere too much along with the time).

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides an exhaust gas conveying connecting pipe, which solves the problems that a cooling water pipe is inconvenient to clean and the cooling effect is influenced in the prior art.

According to the embodiment of the utility model, the waste gas conveying connecting pipe comprises an outer pipe and an inner pipe which is arranged on the same axis as the outer pipe, wherein the inner pipe is positioned in the outer pipe and is internally provided with an interlayer, the pipe walls at two ends of the inner pipe are also in threaded connection with a water inlet pipe and a water outlet pipe which are respectively communicated with the interlayer, and the outer pipe is provided with through holes for the water inlet pipe and the water outlet pipe to pass through; the two ends of the outer tube are respectively connected with first connecting discs in a threaded manner, the two ends of the inner tube are respectively connected with second connecting discs in a threaded manner, annular steps for accommodating one of the second connecting discs are respectively concavely arranged on one side of the two first connecting discs, and screw holes encircling the annular steps are formed in the first connecting discs.

In the above-mentioned embodiment, like in the prior art, the first connection disc is used for realizing the connection of this connecting pipe and equipment, namely through bolt and screw (like flange joint in the prior art), when dismantling, dismantle first connection disc and dismantle this connecting pipe, then dismantle inlet tube and outlet pipe, dismantle first connection disc, the second connection disc again, can take out the inner tube and carry out the washing of inner wall, wash the back and accomplish again can, and cooling tube in the prior art is inconvenient to take out from the conveyer pipe, therefore wash comparatively consuming time, and still probably there is the dead angle (cooling tube is the snakelike, tools such as brush probably have the place that does not touch when wasing, and the inner wall of inner tube is smooth in this embodiment, can wash more completely), cooling tube inconvenient washing in the prior art has been solved, the cooling effect can receive the problem of influence.

Further, the inner tube comprises an outer shell and an inner shell positioned in the outer shell, the outer shell and the inner shell are fixedly connected with the second connecting disc, and the water inlet pipe and the water outlet pipe are in threaded connection with the outer shell.

Further, a plurality of vertical grooves are concavely formed in the outer wall of the inner shell.

Further, a plurality of connecting plates are fixedly connected between the inner shell and the outer shell, and holes are formed in the connecting plates.

Further, the connecting plate and the vertical groove are arranged at intervals.

Further, the first connecting disc is fixedly connected with a first threaded ring, and the first threaded ring is in threaded connection with the outer wall of the outer tube; the second connecting disc is fixedly connected with a second threaded ring, and the second threaded ring is in threaded connection with the outer wall of the inner tube; the water inlet pipe and the water outlet pipe are positioned between the two second threaded rings and the two first threaded rings.

Further, the outer tube is also provided with a communication hole.

Compared with the prior art, the utility model has the following beneficial effects:

the waste gas passes from the inner tube, and the cold water that lets in the inner tube intermediate layer cools down waste gas, when needs wash, the inner tube can be light dismantlement come out to wash alone, and the inner wall of inner tube is smooth, washs and can go on more completely, avoids having the washing dead angle, has solved among the prior art condenser tube inconvenient washing, and the cooling effect can receive the problem of influence.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a part of the structure of an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of a partial structure at A in FIG. 1;

FIG. 4 is a schematic view showing the connection structure of the water inlet pipe and the housing according to the embodiment of the utility model

In the above figures:

the device comprises an outer pipe 1, an inner pipe 2, an interlayer 3, a water inlet pipe 4, a water outlet pipe 5, a first connecting disc 6, a second connecting disc 7, a screw hole 8, an outer shell 9, an inner shell 10, a vertical groove 11, a connecting plate 12, a first threaded ring 13, a second threaded ring 14, a bolt 15, a communication hole 16, a connecting hole 17, an external threaded section 18 and an elastic section 19.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 and 2, the present embodiment provides an exhaust gas conveying connection pipe, which includes an outer pipe 1 and an inner pipe 2 disposed coaxially with the outer pipe 1, wherein the inner pipe 2 is located in the outer pipe 1, an interlayer 3 is disposed in the inner pipe 2, the outer pipe 1 provides a mounting foundation of the connection pipe, the inner pipe 2 is provided with exhaust gas passing through, pipe walls at two ends of the inner pipe 2 are also in threaded connection with a water inlet pipe 4 and a water outlet pipe 5 which are both communicated with the interlayer 3, the water inlet pipe 4 and the water outlet pipe 5 respectively guide cold water into the interlayer 3 and then guide water out of the interlayer 3, so that the exhaust gas in the inner pipe 2 is cooled, and through holes respectively provided on the outer pipe 1 for the water inlet pipe 4 and the water outlet pipe 5 to pass through; the two ends of the outer tube 1 are respectively connected with a first connecting disc 6 in a threaded manner, the two ends of the inner tube 2 are respectively connected with a second connecting disc 7 in a threaded manner, annular steps for accommodating one of the second connecting discs 7 are respectively concavely arranged on one side of the two first connecting discs 6 opposite to each other, and screw holes 8 encircling the annular steps are formed in the first connecting discs 6.

In the above embodiment, similarly to the prior art, the first connection disc 6 is used to connect the present connection pipe with the device, that is, the connection pipe is connected with the device through the bolt 15 and the screw hole 8 (similar to the flange connection in the prior art), the exhaust gas passes through the inner pipe 2, and the cold water introduced into the interlayer 3 of the inner pipe 2 cools the exhaust gas; when dismantling, dismantle first connection dish 6 and dismantle this connecting pipe, then dismantle inlet tube 4 and outlet pipe 5, dismantle first connection dish 6, second connection dish 7 again, can take inner tube 2 out and carry out the washing of inner wall, wash the back and install again can, and cooling water pipe among the prior art is inconvenient take out in the conveyer pipe, therefore wash comparatively consuming time, and there is the dead angle still probably (cooling water pipe is the snakelike, tools such as brush probably have the place that can not touch when wasing, and the inner wall of inner tube 2 is smooth in this embodiment, can wash more completely), cooling water pipe inconvenient washing among the prior art has been solved, the cooling effect can receive the problem of influence.

As shown in fig. 1, 2, 3 and 4, preferably, the inner tube 2 comprises an outer shell 9 and an inner shell 10 positioned in the outer shell 9, the outer shell 9 and the inner shell 10 are fixedly connected with the second connecting disc 7, the water inlet tube 4 and the water outlet tube 5 are both in threaded connection with the outer shell 9 (a connecting hole 17 for respectively connecting the water inlet tube 4 and the water outlet tube 5 is arranged on the outer shell 9, the connecting hole 17 comprises an inner threaded section close to the inner shell 10 and a pressing section far away from the inner shell 10, one end of the water inlet tube 4 and the water outlet tube 5 connected with the connecting hole 17 is respectively provided with an outer threaded section 18 matched with the inner threaded section, the water inlet tube 4 and the water outlet tube 5 are also provided with an elastic section 19 matched with the pressing section, the outer threaded section 18 is provided with an outer thread on the outer wall, an elastic layer (such as elastic rubber) is fixedly covered on the outer wall of the elastic section 19, when the water inlet tube 4 or the water outlet tube 5 is connected, the external thread section 18 is connected with the internal thread section through the compression section, then the external thread section 18 and the internal thread section are rotated to connect, in the connecting process, the elastic section 19 is pulled into the compression section to realize the compression between the elastic section 19 and the compression section, so as to seal the connecting hole 17, leakage is avoided (the external diameter of the external thread section 18 is slightly smaller than the internal diameter of the compression section of the connecting hole 17, the elastic section 19 is slightly larger, and the elastic section 19 and the external thread section 18 are smoothly transited, in the connecting process, along with the proceeding of the threaded connection, the transition is firstly contained into the compression section, then the elastic section 19 is continuously pulled into the compression section to realize the compression), the outer tube 1 provided with protection for the inner tube 2, further, the communication hole 16 can be arranged on the outer tube 1, so that the inner tube 2 can be communicated with the outside, namely, the outer tube 9 is communicated with the outside, the outer shell 9 can radiate heat outwards through the communication hole 16, the inner shell 10 is directly contacted with waste gas, so that cold water can absorb heat through the inner shell 10 to realize cooling, and further, a plurality of vertical grooves 11 are concavely formed in the outer wall of the inner shell 10, so that the thickness of the upper part of the outer wall of the inner shell 10 is reduced (namely, the position corresponding to the vertical grooves 11) and the cooling effect of the cold water can be improved;

still further, still fixedly connected with a plurality of connecting plates 12 between inner shell 10 and the shell 9, the hole has been seted up on the connecting plate 12, connecting plate 12 and perpendicular groove 11 interval set up, connecting plate 12 has played the connection effect between inner shell 10 and the shell 9 for both structures are more stable, and the hole on connecting plate 12 then has ensured that cold water flows into intermediate layer 3 smoothly and derives intermediate layer 3 smoothly.

As shown in fig. 1 and 2, the first connecting disc 6 is preferably fixedly connected with a first threaded ring 13, and the first threaded ring 13 is in threaded connection with the outer wall of the outer tube 1; the second connecting disc 7 is fixedly connected with a second threaded ring 14, and the second threaded ring 14 is in threaded connection with the outer wall of the inner tube 2; the water inlet pipe 4 and the water outlet pipe 5 are positioned between the two second threaded rings 14 and the two first threaded rings 13, so that the first connecting disc 6 and the second connecting disc 7 can be smoothly connected and detached.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (7)

1. The waste gas conveying connecting pipe is characterized by comprising an outer pipe and an inner pipe which is arranged on the same axis as the outer pipe, wherein the inner pipe is positioned in the outer pipe, an interlayer is arranged in the inner pipe, the pipe walls at two ends of the inner pipe are also connected with a water inlet pipe and a water outlet pipe which are communicated with the interlayer through threads, and the outer pipe is provided with through holes for the water inlet pipe and the water outlet pipe to pass through respectively; the two ends of the outer tube are respectively connected with first connecting discs in a threaded manner, the two ends of the inner tube are respectively connected with second connecting discs in a threaded manner, annular steps for accommodating one of the second connecting discs are respectively concavely arranged on one side of the two first connecting discs, and screw holes encircling the annular steps are formed in the first connecting discs.

2. The exhaust gas-conveying connection pipe according to claim 1, wherein the inner pipe includes an outer shell and an inner shell located in the outer shell, the outer shell and the inner shell are fixedly connected to the second connection pad, and the water inlet pipe and the water outlet pipe are screwed to the outer shell.

3. The exhaust gas-conveying connection pipe as claimed in claim 2, wherein a plurality of vertical grooves are concavely provided on the outer wall of the inner case.

4. The exhaust gas-transporting connecting pipe as claimed in claim 3, wherein a plurality of connecting plates are fixedly connected between the inner case and the outer case, and holes are formed in the connecting plates.

5. The exhaust gas delivery connection pipe of claim 4, wherein the connection plate and the vertical groove are spaced apart.

6. The exhaust gas-conveying connection pipe according to any one of claims 1 to 5, wherein the first connection plate is fixedly connected with a first threaded ring, and the first threaded ring is in threaded connection with the outer wall of the outer pipe; the second connecting disc is fixedly connected with a second threaded ring, and the second threaded ring is in threaded connection with the outer wall of the inner tube; the water inlet pipe and the water outlet pipe are positioned between the two second threaded rings and the two first threaded rings.

7. The exhaust gas-conveying connection pipe as claimed in claim 6, wherein the outer pipe is further provided with a communication hole.

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