Anti-blocking structure for feeding distribution pipe of asphalt falling film cooler

Abstract

The utility model relates to an asphalt falling film cooler feed distribution pipe anti-blocking structure which comprises a feed pipe, distribution pipes, a supporting pipe, an upper pipe plate and a distributor, the distribution pipes are symmetrically arranged on the two sides of the feed pipe at intervals, the lower portion of the middle of the feed pipe is fixedly connected with the supporting pipe, the distribution pipes transversely and horizontally extend along the feed pipe and then extend downwards, and the upper pipe plate is fixedly connected with the distributor. The lower end opening of the distribution pipe is lower than the upper end opening of a distributor arranged on the upper pipe plate, and a plurality of liquid distribution holes are evenly distributed in the periphery of the lower end opening of the distribution pipe and arranged above the upper end opening of the distributor. According to the utility model, the liquid distribution holes are uniformly distributed, so that the discharge of the liquid distribution holes is more uniform, and the scouring of the discharge of the lower port of the distribution pipe to the upper pipe plate is reduced. The liquid distribution holes are higher than the upper port of the distributor, and operation is not affected when the lower port of the distribution pipe is blocked by asphalt. The falling film cooler upper cover does not need to be opened and the distribution pipe does not need to be disassembled, so that the workload is reduced and the operation risk is avoided.

Description

Technical Field

[0001] The utility model relates to the field of asphalt falling film cooling, in particular to an anti-blocking structure for a feed distribution pipe of an asphalt falling film cooler. Background Art

[0002] In the production of chemical products, high-temperature liquid asphalt needs to be cooled by an asphalt falling film cooler. At present, in domestic asphalt falling film coolers, asphalt enters through the feed pipe and flows fully to the distributor for uniform cooling. The outlet of this feed pipe device is lower than the full flow level. Since the full flow level cannot be emptied during shutdown, the outlet end of the feed pipe is blocked by asphalt during the shutdown period. Before starting work, it is necessary to open the upper cover of the falling film cooler and disassemble the feed pipe for clearing, which increases the difficulty of starting work. While increasing the workload, it also increases the safety risk of personnel falling from height when disassembling the feed pipe. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an anti-blocking structure for a feed distribution pipe of an asphalt falling film cooler, so as to solve the problem that normal production cannot be performed due to blockage of a feed pipe outlet when starting production of modified asphalt.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A feed distribution pipe anti-blocking structure for an asphalt falling film cooler comprises a feed pipe, a distribution pipe, a support pipe, an upper tube plate and a distributor, wherein symmetrical distribution pipes are arranged at intervals on both sides of the feed pipe, the support pipe is fixedly connected to the lower part of the middle of the feed pipe, the distribution pipe extends horizontally along the feed pipe and then extends downward, the lower port of the distribution pipe is lower than the position of the upper port of the distributor arranged on the upper tube plate, a plurality of liquid separation holes are evenly distributed on the periphery of the lower port of the distribution pipe, and the liquid separation holes are arranged above the upper port of the distributor.

[0006] The feed pipe is a straight pipe, the inlet end of which protrudes out of the asphalt falling film cooler, and the other end is blocked inside the asphalt falling film cooler.

[0007] The liquid separation hole is 40-50 mm higher than the upper port of the distributor.

[0008] The number of the liquid separation holes is 6-8 and the diameter is 6-8 mm.

[0009] The length of the horizontal pipe located in the middle of the distribution pipe is greater than the length of the horizontal pipes on both sides.

[0010] The lower side of the support tube abuts against the surface of the upper tube plate.

[0011] Compared with the existing technology, the beneficial effects of the utility model are:

[0012] The lower end of the distribution pipe of the utility model is provided with evenly distributed liquid separation holes, and the discharge of the liquid separation holes is more uniform, reducing the scouring of the upper tube plate by the discharge of the lower end of the distribution pipe. The liquid separation holes are higher than the upper end of the distributor (i.e., the full flow level). When the lower end of the distribution pipe is blocked by asphalt, the high-temperature asphalt can flow out from the liquid separation holes first, without affecting the start of work. There is no need to open the upper cover of the falling film cooler to clear the distribution pipe, which reduces the workload and avoids the operation risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of the utility model.

[0014] Figure 2 A top view of the utility model.

[0015] In the figure: feed pipe 1, distribution pipe 2, support pipe 3, upper tube plate 4, distributor 5, liquid separation hole 6, asphalt falling film cooler 7. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means more than two.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0018] A feed distribution pipe anti-blocking structure for an asphalt falling film cooler comprises a feed pipe 1, a distribution pipe 2, a support pipe 3, an upper tube plate 4 and a distributor 5. The distribution pipes 2 are symmetrically arranged at intervals on both sides of the feed pipe 1. The support pipe 3 is fixedly connected to the lower part of the middle of the feed pipe 1. The distribution pipe 2 extends horizontally along the feed pipe 1 and then extends downward. The lower port of the distribution pipe 2 is lower than the position of the upper port of the distributor 5 arranged on the upper tube plate 4. A plurality of liquid separation holes 6 are evenly distributed on the periphery of the lower port of the distribution pipe 2, and the liquid separation holes 6 are arranged above the upper port of the distributor 5.

[0019] The feed pipe 1 is a straight pipe, the inlet end of which protrudes out of the asphalt falling film cooler 7 and the other end is blocked inside the asphalt falling film cooler 7 .

[0020] The liquid separation hole 6 is 40-50 mm higher than the upper port of the distributor 5 .

[0021] The number of the liquid separation holes 6 is 6-8 and the diameter is 6-8 mm.

[0022] The length of the horizontal pipe in the middle of the distribution pipe 2 is greater than the length of the horizontal pipes on both sides.

[0023] The lower side of the support tube 3 abuts against the surface of the upper tube plate 4 .

[0024] Use of this device: Before starting work, the lower end of the distribution pipe is in a state of asphalt solidification and blocking, and hot oil asphalt flows into the distribution pipe 2 through the feed pipe 1, and the hot oil asphalt flows out from the 6 holes of the evenly distributed liquid distribution pipe at the lower end of the distribution pipe 2. The liquid level of the hot oil asphalt on the upper tube plate of the falling film cooler continues to rise until it reaches the full flow level of the distributor and flows out along the tube bundle. As the hot oil asphalt continues to flow out and maintains a high temperature, the lower end of the distribution pipe intrudes below the full flow level of the hot oil asphalt, and the solidified asphalt at the lower end of the distribution pipe is melted by the high-temperature asphalt, allowing the lower end of the distribution pipe to discharge smoothly.

[0025] In order to make the purpose, technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model is now described clearly and completely. However, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. In combination with the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] An anti-blocking structure for a feed distribution pipe of an asphalt falling film cooler comprises a feed pipe 1, a distribution pipe 2, a support pipe 3, an upper tube plate 4, and a distributor 5. The feed pipe 1 is a straight pipe, Φ108*4.5mm, and 1500mm in length, with its inlet end protruding out of the asphalt falling film cooler 7, and the other end being blocked inside the asphalt falling film cooler 7. The support pipe 3 is welded below the middle of the feed pipe 1, and the lower part of the support pipe 3 abuts against the surface of the upper tube plate 4.

[0027] Symmetrically arranged distribution pipes 2 are provided at intervals of 350mm on both sides of the feed pipe 1. The distribution pipes 2 are divided into 4 groups with a total of 8 pipes. The distribution pipes 2 extend horizontally along the feed pipe 1 and then extend downward. The lengths of the horizontal distribution pipes are: 88mm, 450mm, 450mm, and 88mm.

[0028] The lower port of the distribution pipe 2 is lower than the upper port of the distributor 5 arranged on the upper tube plate 4. Six liquid separation holes 6 with a diameter of 6 mm are evenly distributed on the outer periphery of the lower port of the distribution pipe 2. The liquid separation holes 6 are arranged 45 mm above the upper port of the distributor 5. Example

[0029] An anti-blocking structure for a feed distribution pipe of an asphalt falling film cooler comprises a feed pipe 1, a distribution pipe 2, a support pipe 3, an upper tube plate 4, and a distributor 5. The feed pipe 1 is a straight pipe, Φ108*4.5mm, and 1550mm in length, with its inlet end protruding out of the asphalt falling film cooler 7, and the other end being blocked inside the asphalt falling film cooler 7. A support pipe 3 is welded below the middle of the feed pipe 1, and the lower part of the support pipe 3 abuts against the surface of the upper tube plate 4.

[0030] Symmetrically arranged distribution pipes 2 are provided at intervals of 360 mm on both sides of the feed pipe 1. The distribution pipes 2 are divided into 4 groups with a total of 8 pipes. The distribution pipes 2 extend horizontally along the feed pipe 1 and then extend downward. The lengths of the horizontal distribution pipes are: 80 mm, 450 mm, 450 mm, and 80 mm.

[0031] The lower port of the distribution pipe 2 is lower than the upper port of the distributor 5 arranged on the upper tube plate 4. Six liquid separation holes 6 with a diameter of 8 mm are evenly distributed on the outer periphery of the lower port of the distribution pipe 2. The liquid separation holes 6 are arranged 50 mm above the upper port of the distributor 5.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking structure for a feed distribution pipe of an asphalt falling film cooler, characterized in that: It includes a feed pipe, a distribution pipe, a support pipe, an upper tube plate, and a distributor. Symmetrical distribution pipes are arranged at intervals on both sides of the feed pipe. The support pipe is fixedly connected to the lower part of the middle of the feed pipe. The distribution pipe extends horizontally along the feed pipe and then extends downward. The lower port of the distribution pipe is lower than the upper port of the distributor arranged on the upper tube plate. A plurality of liquid separation holes are evenly distributed on the periphery of the lower port of the distribution pipe, and the liquid separation holes are arranged above the upper port of the distributor.

2. The anti-blocking structure of the feed distribution pipe of the asphalt falling film cooler according to claim 1 is characterized in that: The feed pipe is a straight pipe, the inlet end of which protrudes out of the asphalt falling film cooler, and the other end is blocked inside the asphalt falling film cooler.

3. The anti-blocking structure for the feed distribution pipe of the asphalt falling film cooler according to claim 1 is characterized in that: The liquid separation hole is 40-50 mm higher than the upper port of the distributor.

4. The anti-blocking structure for the feed distribution pipe of the asphalt falling film cooler according to claim 1 is characterized in that: The number of the liquid separation holes is 6-8 and the diameter is 6-8 mm.

5. The anti-blocking structure for the feed distribution pipe of the asphalt falling film cooler according to claim 1, characterized in that: The length of the horizontal pipe located in the middle of the distribution pipe is greater than the length of the horizontal pipes on both sides.

6. The anti-blocking structure for the feed distribution pipe of the asphalt falling film cooler according to claim 1, characterized in that: The lower side of the support tube abuts against the surface of the upper tube plate.

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