Split type chilling chamber

Abstract

The utility model discloses a split type chilling chamber which comprises a chilling chamber main body, a downcomer arranged in the chilling chamber main body and a water jacket arranged at one end of the chilling chamber main body, an installation part is arranged on the water jacket, a matching part is arranged in the chilling chamber main body, and the installation part is connected with the matching part through a connecting structure. The water jacket is detachably connected to the chilling chamber main body, when the water jacket needs to be replaced, the whole chilling chamber does not need to be pulled out, the water jacket can be directly replaced on site, and the maintenance and replacement time and cost are greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of quench chamber production, and particularly relates to a split quench chamber. Background Art

[0002] The quench chamber is an important component in a gasifier. It is a device that rapidly cools high-temperature gas and molten slag with water through a downcomer, and rapidly quenches the liquid ash slag into solid ash slag, which enters the slag collection tank from the lower part and is intermittently discharged. Therefore, this device has characteristics such as high temperature, high pressure, and phase change, and is a key device for the operation cycle length of water coal slurry gasification. However, due to the problem of machining deviation in the gap between the water jacket and the downcomer when the water jacket is set in a direct current form, the downcomer is burned and deformed, resulting in a short circuit of the water gas and an accident of forced shutdown due to the over-temperature of the gas temperature at the outlet of the quench chamber.

[0003] To solve the above problems, for example, the patent document with the publication number CN 220766897 U discloses a quench chamber with a forced cooling structure, including: a quench chamber, a quench ring, and a downcomer. A plurality of swirl vanes are horizontally and annularly distributed on the inner cooling water channel of the middle cylinder of the downcomer; in the utility model, by arranging a plurality of horizontally and annularly distributed swirl vanes on the inner cooling water channel of the quench chamber, the cooling water flow forms a spiral continuous water film around the inner wall of the quench chamber after passing through the swirl vanes when falling at high speed, avoiding the uneven distribution of the water film and the occurrence of local water interruption caused by the vertical falling of the existing cooling water. However, this device has the problem that the water jacket is integrally connected to the quench chamber and cannot be disassembled. When the water jacket needs to be replaced or repaired, the entire quench chamber needs to be removed, cut and replaced in the factory, resulting in long maintenance time and high maintenance costs. Content of the Utility Model

[0004] The utility model provides a split quench chamber, which solves the problems in the prior art that the disassembly and assembly of the quench chamber and the water jacket are inconvenient, the maintenance is troublesome, and the cost is too high.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A split quench chamber, comprising

[0007] A quench chamber body;

[0008] A downcomer, which is connected inside the quench chamber body;

[0009] A water jacket, which is arranged at one end of the quench chamber body;

[0010] It is characterized in that: an installation part is provided on the water jacket, a matching part is provided in the main body of the quench chamber, and the installation part is connected to the matching part through a connection structure, so that the water jacket is detachably connected to the main body of the quench chamber. When the water jacket needs to be replaced, it is not necessary to pull out the whole quench chamber, and the water jacket can be directly replaced on site, greatly shortening the maintenance and replacement time and cost.

[0011] Furthermore, the connection structure includes bolts, nuts and gaskets. The bolts pass through the installation part and the matching part in sequence and cooperate with the nuts and gaskets to realize the connection between the water jacket and the main body of the quench chamber. Bolt connection has the characteristics of being easy to install and maintain, can be reused to reduce costs, and at the same time, has certain elasticity and shock absorption ability, and can absorb vibration and impact loads to a certain extent.

[0012] Furthermore, a cavity is provided in the water jacket, and one end of the downcomer extends into the cavity to form a cooling channel for the medium to flow through. When the cooling medium is introduced into the cavity of the water jacket, the cooling medium can evenly flow through the downcomer along the medium channel, thereby effectively reducing its temperature.

[0013] Furthermore, guide vanes are provided in the cooling channel. The guide vanes make the medium flow in a swirling and uniform distribution in the cooling channel and form a swirling water film, effectively protecting the liquid film on the surface of the downcomer and preventing the downcomer from being damaged by high-temperature gas.

[0014] Furthermore, positioning claws are provided on the surface of the downcomer. The setting of the positioning claws prevents the thermal expansion and contraction caused by heat from narrowing the medium channel and affecting the swirling of the medium and the continuity of the water film.

[0015] Furthermore, serrated clamping parts are provided at both ends of the downcomer. Since the high-temperature gas from the gasifier contains about 18% carbon dioxide, it is easy to form bubbles, resulting in large fluctuations in the quench liquid level and affecting mass transfer and heat transfer. The bubbles are punctured through the clamping parts to improve the heat transfer effect, and at the same time, it also has the effect of improving the sedimentation of ash slag in the gas phase.

[0016] Furthermore, the adjacent two clamping parts are provided with a 60° chamfer. The reasonable angle setting can improve the puncturing effect of the clamping part on the bubbles.

[0017] Furthermore, rib plates are provided in the main body of the quench chamber. The downcomer is connected to the main body of the quench chamber through the rib plates. The setting of the rib plates can increase the strength, load-bearing capacity and stability of the structure, and prevent deformation and displacement caused by high temperature.

[0018] Furthermore, at least four water inlet pipes are evenly distributed on the surface of the main body of the quench chamber, so that the quench water can evenly enter the inside of the quench chamber, solving the problem of uneven flow of the medium.

[0019] Furthermore, the quench chamber further includes a head, and the head is connected to the quench chamber body through a flange. The flange connection ensures the tightness and stability between the two. At the same time, the flange connection also has the advantages of convenient disassembly, good sealing performance, high connection strength, etc., and can meet the use requirements of the quench chamber under harsh environments such as high temperature and high pressure.

[0020] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0021] For a split quench chamber of the present utility model, an installation part is provided on the water jacket, and a matching part is provided in the quench chamber body. The installation part is connected to the matching part through a connection structure, realizing the disassembly and connection of the water jacket to the quench chamber body. When the water jacket needs to be replaced, there is no need to pull out the entire quench chamber, and the water jacket can be directly replaced on-site, greatly shortening the time and cost of maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present utility model will be further described below in conjunction with the drawings:

[0023] Figure 1 is a schematic structural diagram of a split quench chamber of the present utility model;

[0024] Figure 2 is Figure 1 a top view of;

[0025] Figure 3 is Figure 1 a partial enlarged view of part A in;

[0026] Figure 4 is Figure 1 a partial enlarged view of part B in;

[0027] Figure 5 is a schematic structural diagram of the downcomer in the present utility model;

[0028] Figure 6 is Figure 5 a partial enlarged view of part C in.

[0029] 10 - Quench chamber body; 11 - Head; 12 - Rib plate; 13 - Downcomer; 14 - Water jacket; 15 - Connection structure; 16 - Water inlet pipe; 17 - Bolt; 18 - Nut; 19 - Matching part; 20 - Installation part; 21 - Jacket cover; 22 - First pipe body; 23 - Second pipe body; 24 - Cooling channel; 25 - Positioning claw; 26 - Clamping part; 27 - Deflector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0031] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solution in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0033] As Figures 1 to 6 shown, a split quench chamber of the present utility model mainly functions to realize the disassembly and assembly connection of the water jacket 14 and the quench chamber body 10 by setting the connection structure 15, shortening the time and cost of maintenance and replacement.

[0034] A split quench chamber of the present utility model includes a quench chamber body 10 and a head 11. The head 11 is arranged at the bottom end of the quench chamber body 10 to ensure the control of the pressure and temperature inside the quench chamber. At the same time, the head 11 can also withstand the pressure difference and temperature difference inside and outside the quench chamber, protecting the quench chamber body 10 from the influence of the external environment. In order to improve the connection precision between the two and facilitate replacement, the head 11 is connected to the quench chamber body 10 by a flange. The flange connection also has the advantages of convenient disassembly, good sealing performance, high connection strength, etc., and can meet the use requirements of the quench chamber under harsh environments such as high temperature and high pressure.

[0035] At least four water inlet pipes 16 are evenly distributed on the surface of the quench chamber body 10. The water inlet pipes 16 are communicated with the quench chamber body 10, enabling the quench water to enter the inside of the quench chamber evenly and solving the problem of medium deviation flow.

[0036] A downcomer 13 is installed inside the quench chamber body 10. The downcomer 13 is connected to the quench chamber body 10 through a rib plate 12. The setting of the rib plate 12 can increase the strength, load-bearing capacity of the structure and the stability of the downcomer 13.

[0037] Since the high-temperature gas from the gasifier contains about 18% carbon dioxide, it is easy to form bubbles, resulting in large fluctuations in the quench liquid level, affecting mass transfer and heat transfer. The two ends of the downcomer 13 are provided with serrated clamping portions 26 presenting a 60° chamfer. The clamping portions 26 can puncture the water bubbles generated during the operation of the equipment, improving the heat exchange and heat transfer effect of the medium, and at the same time also having the effect of improving the ash sedimentation in the gas phase.

[0038] A water jacket 14 is installed at the top of the quench chamber body 10. The water jacket 14 specifically includes a first pipe body 22 and a second pipe body 23. The first pipe body 22 and the second pipe body 23 are connected by a jacket cover 21. The jacket cover 21 is inclined with a mating surface. The first pipe body 22, the second pipe body 23 and the jacket cover 21 are provided with corresponding mounting surfaces. When the first pipe body 22, the second pipe body 23 and the jacket cover 21 are fitted, the mating surface and the mounting surface are in contact and the mating sealing effect is improved by welding. A cavity is formed between the first pipe body 22, the second pipe body 23 and the jacket cover 21. One end of the downcomer 13 extends into the cavity and forms a cooling channel 24 for the medium to flow through. The cooling channel 24 communicates with the inside of the quench chamber body 10. When the cooling medium enters from the water inlet pipe 16 and is introduced into the cavity of the water jacket 14, the cooling medium evenly flows through the downcomer 13 along one end of the first pipe body 22 to the medium channel at one end of the second pipe body 23, thereby effectively reducing the temperature of the downcomer 13.

[0039] A flow guide vane 27 is arranged in the cooling channel 24. The flow guide vane 27 is installed on the surface of the downcomer 13. The flow guide vane 27 enables the medium to change direction after passing through the cooling channel 24 at the end of the first pipe body 22, contact the flow guide vane 27 and then become a swirling and uniform flow, and form a swirling water film, effectively protecting the liquid film on the surface of the downcomer 13, preventing the high-temperature gas from burning out the downcomer 13, and ensuring the safe and stable operation of the equipment.

[0040] Positioning claws 25 are arranged on the surface of the downcomer 13. The setting of the positioning claws 25 prevents the thermal expansion and contraction caused by heat from narrowing the medium channel and affecting the swirling flow of the medium and the continuity of the water film.

[0041] An installation part 20 is arranged on the water jacket 14, and a mating part 19 is arranged in the quench chamber body 10. The installation part 20 is connected to the mating part 19 through a connection structure 15. The installation part 20 and the mating part 19 can also adopt a flange. The connection structure 15 includes bolts 17, nuts 18 and gaskets. During installation, the installation part 20 and the mating part 19 are fitted. Corresponding installation holes are arranged on the installation part 20 and the mating part 19. The bolts 17 sequentially pass through the installation holes on the installation part 20 and the mating part 19 and cooperate with the nuts 18 and gaskets to realize the connection between the water jacket 14 and the quench chamber body 10. The bolt connection has the characteristics of being easy to install and repair, can be reused to reduce costs, and at the same time, has certain elasticity and shock absorption capacity, and can absorb vibration and impact loads to a certain extent. When the water jacket 14 needs to be replaced, it is not necessary to pull out the entire quench chamber, and the water jacket 14 can be directly replaced on site, greatly shortening the time and cost of maintenance and replacement.

[0042] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present utility model.

Claims

1. A split quenching chamber, comprising The main body of the quenching chamber; A downcomer connected to the quenching chamber body; A water jacket, the water jacket being arranged at one end of the quenching chamber body; Features: The water jacket is provided with a mounting portion, and the quenching chamber body is provided with a matching portion. The mounting portion is connected to the matching portion via a connecting structure, so that the water jacket can be detachably connected to the quenching chamber body.

2. A split type quenching chamber according to claim 1, characterized in that: The connection structure includes bolts, nuts and washers. The bolts pass through the mounting portion and the matching portion in sequence and match with the nuts and the washers to achieve the connection between the water jacket and the quenching chamber body.

3. A split type quenching chamber according to claim 1, characterized in that: A cavity is provided in the water jacket, and one end of the downcomer extends into the cavity to form a cooling channel for medium circulation.

4. A split type quenching chamber according to claim 3, characterized in that: A guide vane is arranged in the cooling channel.

5. A split type quenching chamber according to claim 1, characterized in that: Positioning claws are provided on the surface of the descending tube.

6. A split type quenching chamber according to claim 1, characterized in that: Both ends of the downcomer are provided with sawtooth-shaped clamping parts.

7. A split type quenching chamber according to claim 6, characterized in that: Two adjacent clamping parts are chamfered at 60°.

8. The split type quenching chamber according to claim 1, characterized in that: A rib plate is provided in the quenching chamber body, and the downcomer is connected to the quenching chamber body through the rib plate.

9. A split type quenching chamber according to claim 1, characterized in that: At least four water inlet pipes are evenly distributed on the surface of the quenching chamber body.

10. A split type quenching chamber according to claim 9, characterized in that: The quenching chamber further comprises a sealing head, and the sealing head is connected to the quenching chamber body through a flange.

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