Box-type cooling system for cracking equipment

Abstract

The utility model discloses a box-type cooling system for cracking equipment, which relates to the technical field of cooling systems and comprises a box body, a plurality of cooling pipelines, two collecting pipes, a plurality of elbows, a clamping ring I and a plurality of clamping rings II, a plurality of holes are formed in the two sides of the box body, the cooling pipelines are fixedly connected to the holes respectively, one end of the first clamping ring abuts against one cooling pipeline, the collecting pipe is in threaded connection with the other end of the first clamping ring, one ends of the second clamping rings abut against the elbows, and the cooling pipelines are in threaded connection with the other ends of the second clamping rings. The box-type cooling system adopts a structure with a large box body, multiple pipelines and trunks arranged at two ends, so that the oil yield is improved. Valve connectors are reserved at the bottoms of the collecting pipes at the two ends, residual oil can be discharged conveniently, the problem of blockage caused by the fact that the residual oil enters the condensing pipes is solved, production efficiency is improved, and production cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of cooling systems, and particularly to a box-type cooling system for cracking equipment. Background Technique

[0002] A cooling system is a device used to control and regulate temperature, and is widely applied to various equipment and environments. Its main function is to absorb and dissipate heat through a circulating cooling medium (such as water or coolant), so as to keep the equipment or environment within an appropriate working temperature range. The process of cracking and refining oil also necessarily requires a cooling system, which is an indispensable process. The core of the oil and gas cooling system is to transfer the heat in high-temperature oil and gas to a low-temperature cooling medium through heat exchange, so as to achieve the purpose of condensing the oil and gas into liquid oil.

[0003] Cracking and refining oil is a process of decomposing high-molecular-weight hydrocarbons into substances with smaller molecular weights through high-temperature treatment. Cracking and refining oil can not only effectively reduce environmental pollution, but also realize the recycling of resources, with significant economic value and environmental significance. Through reasonable design and optimization of the process flow, effective conversion and efficient utilization of waste can be achieved. In the prior art of cracking and refining equipment, the cooling system mostly adopts box-type cooling with small boxes, few pipelines, and single pipe passes. Such a cooling system has a small cooling area, difficult pipeline cleaning, and low oil yield.

[0004] The utility model patent with the publication number of CN217406342U proposes a circulating cooling system for a hydropower station: through a specially structured circulating water tank, the water flowing back through the circulating cooling water return pipe can flow along the set route, and it is not easy to have the problem of direct floating of high-temperature water, and it can be evenly mixed with the internal constant temperature water to improve the cooling effect; through the turbulence motor driving the transmission shaft and the impeller to rotate clockwise, the water flowing through the water guide channel can be made to flow slowly, so that the mixing effect is better. The flow rate between the mixing area and the buffer area can be adjusted through the plug, so that the mixing effect of water is easier to control. The plug can be guided during adjustment through the guide frame and the guide plate. The plugging position of the plug can be adjusted through the adjusting screw and the threaded sleeve, and the adjustment is relatively convenient. Electric adjustment can be carried out through the adjusting motor and the bevel gear, and it is labor-saving to use. Although the recycling of the cooling fluid in the cooling system is solved, the cooling efficiency is low and the production cost is relatively high. Content of the Utility Model

[0005] The purpose of the utility model is to provide a box-type cooling system for cracking equipment to solve the problems put forward in the above background technique.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A box-type cooling system for a cracking device, comprising a box body, a plurality of cooling pipes, two collecting pipes, a plurality of elbows, a first clamping ring, and a plurality of second clamping rings; a plurality of holes are opened on both sides of the box body, and the plurality of cooling pipes are respectively fixedly connected to the plurality of holes. One end of the first clamping ring abuts against one of the cooling pipes, the collecting pipe is screwed to the other end of the first clamping ring, one end of the plurality of second clamping rings abuts against the plurality of elbows, and the plurality of cooling pipes are screwed to the other ends of the plurality of second clamping rings.

[0008] Adopting the above technical solution, in this solution, the box-type cooling system adopts a structure of a large box body, interconnected multi-pipes, and collecting pipes arranged at both ends to improve the oil yield. Valve interfaces are reserved at the bottoms of the collecting pipes at both ends to facilitate the discharge of residual oil, thus solving the blockage problem caused by the residual oil entering the condenser pipe, improving the production efficiency, and the passive heat dissipation system mode saves the production cost.

[0009] A further improvement of the technical solution of the present utility model lies in that: the box body further includes: a water inlet and a water outlet. One end of the water inlet is arranged on the box body and is communicated with the box body, and the other end of the water inlet is communicated with a water supply system. One end of the water outlet is arranged on the box body and is communicated with the box body, and the other end of the water outlet is communicated with a circulation system.

[0010] Adopting the above technical solution, the water inlet and water outlet arranged on the box body in this solution solve the problem of the recycling of the coolant.

[0011] A further improvement of the technical solution of the present utility model lies in that: the cooling pipe further includes: an outer bayonet, a pipe, a thread, and a sealing ring. The outer bayonet is fixedly connected to one end of the pipe, the other end of the pipe is provided with a thread, and the sealing ring is cemented to the other end of the pipe.

[0012] Adopting the above technical solution, the combination of the bayonet, the thread, and the sealing ring in this solution can better ensure the sealing performance of the pipe and ensure that there is no leakage when the oil fluid flows.

[0013] A further improvement of the technical solution of the present utility model lies in that: the clamping ring further includes an inner bayonet, a wire drawing pattern, an inner thread, and a ring body. The inner bayonet is fixedly connected to one side of the ring body, the inner bayonet is coaxially arranged with the ring body, an inner thread is provided inside the ring body, and the wire drawing pattern is annularly arranged on the outside of the ring body.

[0014] A further improvement of the technical solution of the present utility model lies in that: the elbow is a hollow pipe with a bend of "180" degrees, and one ends of the two clamping rings are respectively coaxially arranged with the two ends of the elbow.

[0015] Adopting the above technical solution, in this solution, the elbow with a "180" degree bend can well maintain the pressure of the oil fluid when passing through the pipe, and ensure that the pressure of each part inside the pipe reaches the standard.

[0016] A further improvement of the technical solution of the present utility model lies in that: the collecting pipe is formed by cross-welding two cooling pipes, and the shape of the cross-welding is a "plus" sign.

[0017] By adopting the above technical solution, valve interfaces are reserved at the bottoms of the collecting pipes at both ends in this solution, which facilitates the discharge of residual oil, thereby solving the blockage problem caused by the residual oil entering the condensation pipe.

[0018] A further improvement of the technical solution of the present utility model lies in that: it further includes a second collecting pipe; the second collecting pipe is in a "T" shape, one end of the second collecting pipe is fixedly connected to the cooling pipe, and the other end of the second collecting pipe is fixedly connected to the elbow.

[0019] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0020] 1. The present utility model provides a box-type cooling system for cracking equipment, which uses multiple cooling pipes for circulating cooling, improving the cooling efficiency of the oil liquid and thus increasing the oil yield.

[0021] 2. The present utility model provides a box-type cooling system for cracking equipment, which is provided with collecting pipes at both ends, and valve interfaces are reserved at the bottoms of the collecting pipes, facilitating the discharge of residual oil, thereby solving the blockage problem caused by the residual oil entering the condensation pipe.

[0022] 3. The present utility model provides a box-type cooling system for cracking equipment, which is provided with water inlets and outlets on the box body, enabling the coolant to be recycled, saving manpower and also saving energy, thus reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the drawings.

[0024] Figure 1 is a three-dimensional structural schematic diagram of a box-type cooling system for cracking equipment according to Embodiment 1 of the present utility model;

[0025] Figure 2 is Figure 1 a side sectional view of a box-type cooling system for cracking equipment in

[0026] Figure 3 is Figure 1 a three-dimensional structural schematic diagram of the cooling pipe in

[0027] Figure 4 is Figure 1 a three-dimensional structural schematic diagram of the snap ring in

[0028] Figure 5 is Figure 1 a three-dimensional structural schematic diagram of the combination of the elbow and the snap ring in

[0029] Figure 6 For Figure 5 the three-dimensional mechanism schematic diagram of the elbow

[0030] Figure 7 For Figure 1 the front view of the header

[0031] In the figure: 1. Box body; 2. Cooling pipeline; 20. Outer bayonet; 21. Thread; 22. Sealing ring; 23. Pipeline; 3. Header; 4. Elbow; 5. Snap ring 1; 50. Snap ring 2; 500. Inner bayonet; 501. Wire drawing pattern; 502. Internal thread; 503. Ring body; 6. Water inlet; 7. Drain outlet; 8. Header two. Specific embodiments

[0032] The following further describes the present utility model in detail with reference to the embodiments:

[0033] Embodiment 1

[0034] Please refer to Figures 1-7 , this embodiment provides a box-type cooling system for cracking equipment, including a box body 1, a cooling pipeline 2, an outer bayonet 20, a thread 21, a sealing ring 22, a pipeline 23, a header 3, an elbow 4, a snap ring 5, an inner bayonet 500, a wire drawing pattern 501, an internal thread 502, a ring body 503, a water inlet 6, a drain outlet 7, and a header two 8.

[0035] A plurality of holes are opened on both sides of the box body 1, and protruding strip-shaped bodies are arranged in a cross pattern on both sides of the box body 1. Its function is: it can improve the rigidity and toughness of the structure of the box body 1 and improve the stability of the box body 1. In this embodiment, the size of the box body 1 is: 5.7 meters in length, 3 meters in width, and 2.75 meters in height. Due to its functionality, the box body 1 should be made of materials with high strength, high temperature resistance, and corrosion resistance. According to these characteristics, the box body 1 usually uses stainless steel material, and stainless steel can maintain high strength and corrosion resistance in high-temperature and high-pressure environments. In other embodiments, the size of the box body 1 can also be set to other sizes.

[0036] A plurality of cooling pipelines 2 are fixedly connected to the plurality of holes. The size of the holes is the diameter size of the cooling pipeline 2 to be used. The specification size of the cooling pipeline is: 1 piece of DN300 type, 1 piece of DN200 type, 25 pieces of DN125 type, and 21 pieces of DN80 type, and the pipeline length is 6 meters. The pipeline uses stainless steel material, which has good corrosion resistance and mechanical strength. Of course, it can also be replaced with other materials with corrosion resistance and good heat conduction performance, such as copper, carbon nanotubes, etc. The heat conduction performance of carbon nanotubes in some directions can even exceed that of diamond, and it is a high-potential high-heat-conducting material in the future.

[0037] One end of the first snap ring 5 abuts against the cooling pipe 2, and the manifold 3 is screwed to the other end of the first snap ring 5. One ends of multiple second snap rings 50 abut against multiple elbows 4, and multiple cooling pipes 2 are screwed to the other ends of the multiple second snap rings 50. Through the connection between parts by the snap rings, the installation and disassembly of the manifold 3 and the cooling pipes 2 can be carried out more quickly. The oil and gas first enter the manifold. After being buffered in the manifold, the oil and gas enter the condensation pipes of the box-type cooling system. The condensed oil liquid and non-condensable gas enter the next storage tank system. The non-condensable gas returns to the side-line condensation pipes of this box-type cooling system again after passing through the storage tank system for re-condensation, so that some uncondensed oil and gas are re-condensed into liquid oil.

[0038] One end of the water inlet 6 is arranged on the box body 1 and communicates with the box body 1, and the other end of the water inlet 6 communicates with the water supply system. One end of the drain port 7 is arranged on the box body 1 and communicates with the box body 1, and the other end of the drain port 7 communicates with the circulation system. In use, the selection of the coolant is very important. As a coolant, it is necessary to meet the characteristics of anti-freezing, high boiling point, high chemical stability, high heat transfer ability, etc., so as to meet the same function performance in different periods and different environments. Generally, rust inhibitors and anti-corrosion inhibitors are added to the antifreeze, which can effectively prevent the metal parts in the cooling system from rusting and corroding.

[0039] The outer snap buckle 20 is fixedly connected to one end of the pipe 23, and a thread 21 is provided at the other end of the pipe 23. The sealing ring 22 is cemented to the other end of the pipe 23. The combination of the snap buckle, the thread and the sealing ring can better ensure the sealing performance of the pipe and ensure that there is no leakage when the oil liquid flows. The material usually used for the sealing ring is rubber material, which is widely used in the sealing field because of its good deformation adaptability. Of course, there are also other replaceable materials, such as alumina ceramics and silicon nitride ceramics, which have high hardness, wear resistance and corrosion resistance and are suitable for high-pressure and high-temperature environments.

[0040] The snap ring 5 also includes an inner clamping opening 500, a wire drawing pattern 501, an internal thread 502, and a ring body 503. The inner clamping opening 500 is fixedly connected to one side of the ring body 503, and the inner clamping opening 500 is coaxially arranged with the ring body 503. An internal thread 502 is provided on the inner side of the ring body 503. The main function of the inner clamping opening 500 is to abut against the outer clamping opening 20 at one end of the cooling pipe 2 when the snap ring is combined with the cooling pipe 2, and then be screwed together with the thread 21 through the internal thread 502, and further abut against the outer clamping opening 20 at the end, so as to prevent the pipe from shaking and being unstable during use. The wire drawing pattern 501 is annularly arranged on the outer side of the ring body 503. The cross-sectional shape of the wire drawing pattern 501 is a semi-circular shape of 180°, which can increase the friction with the human hand or an object during use, so as to better fasten the snap ring. In other embodiments, a more complex flange ring connection can also be used, which is usually used together with flanges, gaskets, and bolts to achieve sealing and fixation. According to different application requirements, the flange ring can be made of different materials and specifications, such as carbon steel, alloy steel, and stainless steel. Threaded flanges can be used for low-pressure pipes, while welded flanges are required for high-pressure pipes.

[0041] The elbow 4 is a hollow pipe with a bend of "180" degrees, and one ends of two snap rings 50 are coaxially arranged with both ends of the elbow 4 respectively. The wall thickness of each part of the arc-shaped elbow is the same, which can well maintain the pressure of the oil fluid passing through the pipe and ensure that the pressure of each part inside the pipe reaches the standard.

[0042] The manifold 3 is formed by cross-welding two cooling pipes 2, and the cross-welding shape is a "plus" shape. The manifold 8 is a "T" shape. One end of the manifold 8 is fixedly connected to the cooling pipe 2, and the other end of the manifold 8 is fixedly connected to the elbow 4. In this embodiment, the manifold is welded with DN300 type cooling pipes, which belongs to the first step of rough condensation. The large-diameter pipes allow oil gas and oil slag to pass through together. The oil gas coming from the cracking host first enters the manifold. After being buffered in the manifold, the oil gas then enters the condensation pipe of the box-type cooling system. Valve interfaces are reserved at the bottom of both ends of the manifold to facilitate the discharge of slag oil, thus solving the blockage problem caused by the slag oil entering the condensation pipe. In other embodiments, the manifold can use pipes of other sizes according to requirements.

[0043] Next, the working principle of the box-type cooling system for cracking equipment will be specifically described.

[0044] As Figures 1-7As shown in the figure, the coolant enters the box body 1 through the water inlet 6. When the box body 1 is filled with the coolant, the water outlet 7 is then connected to the circulation system, and the water inlet 6 is connected to the water outlet end of the circulation system. In this way, it can be ensured that the coolant can always maintain its good low-temperature characteristics during use, and can better save energy and labor. The oil and gas coming from the cracking main engine first enter the collecting pipe 3. After being buffered in the collecting pipe 3, the oil and gas then enter the cooling pipe 2 of the box-type cooling system. The condensed oil liquid and non-condensable gas enter the next storage tank system. The non-condensable gas returns to the side-line condensation pipe of this box-type cooling system again after passing through the storage tank system for re-condensation. This way of multiple condensations can maximize the re-condensation of some uncondensed oil and gas into liquid oil to increase the oil yield. Valve interfaces are reserved at the bottom of the collecting pipes at both ends. When the cooling system pauses operation, it is convenient to discharge the residual oil, thus solving the blockage problem caused by the residual oil entering the condensation pipe.

[0045] When the box-type cooling system stops working and needs to be cleaned, only the elbow 4 needs to be removed from the cooling pipe 2, and then the cooling pipe 2 is cleaned one by one or locally. After cleaning, the elbow 4 is connected to the cooling pipe 2 to ensure the normal operation of the system.

[0046] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A box-type cooling system for a cracking device, characterized in that: It comprises: a box body (1), a plurality of cooling pipes (2), two collecting pipes (3), a plurality of elbows (4), a clamping ring one (5), and a plurality of clamping rings two (50); a plurality of holes are provided on both sides of the box body (1); the plurality of cooling pipes (2) are respectively fixedly connected to the plurality of holes; one end of the clamping ring one (5) abuts against one of the cooling pipes (2); the collecting pipe (3) is screwed to the other end of the clamping ring one (5); one end of the plurality of clamping rings two (50) abuts against the plurality of elbows (4); the plurality of cooling pipes (2) are screwed to the other end of the plurality of clamping rings two (50).

2. A box-type cooling system for cracking equipment according to claim 1, characterized in that: The box body (1) further comprises: a water inlet (6) and a water outlet (7); one end of the water inlet (6) is arranged on the box body (1) and is in communication with the box body (1); the other end of the water inlet (6) is in communication with a water supply system; one end of the water outlet (7) is arranged on the box body (1) and is in communication with the box body (1); the other end of the water outlet (7) is in communication with a circulation system.

3. A box-type cooling system for cracking equipment according to claim 1, characterized in that: The cooling pipe (2) further comprises: an external snap-in (20), a pipe (23), a thread (21), and a sealing ring (22); the external snap-in (20) is fixedly connected to one end of the pipe (23); the thread (21) is provided at the other end of the pipe (23); and the sealing ring (22) is glued to the other end of the pipe (23).

4. A box-type cooling system for cracking equipment according to claim 1, characterized in that: The snap ring (5) also includes an inner snap-in (500), a brushed pattern (501), an internal thread (502), and a ring body (503). The inner snap-in (500) is fixedly connected to one side of the ring body (503). The inner snap-in (500) and the ring body (503) are coaxially arranged. The internal thread (502) is provided on the inner side of the ring body (503). The brushed pattern (501) is arranged in an annular array on the outer side of the ring body (503).

5. A box-type cooling system for cracking equipment according to claim 3, characterized in that: The elbow (4) is a hollow pipe with a curvature of "180" degrees, and one end of the two clamping rings (50) is coaxially arranged with the two ends of the elbow (4) respectively.

6. A box-type cooling system for cracking equipment according to claim 1, characterized in that: The collecting pipe (3) is formed by cross-welding two cooling pipes (2), and the cross-welding shape is a "cross" shape.

7. A box-type cooling system for cracking equipment according to claim 6, characterized in that: It also includes a second collecting pipe (8); the second collecting pipe (8) is "T"-shaped, one end of the second collecting pipe (8) is fixedly connected to the cooling pipe (2), and the other end of the second collecting pipe (8) is fixedly connected to the elbow (4).

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