A coke oven riser superheating process system for efficiently and cost-effectively producing superheated steam

Abstract

The application discloses a coke oven riser superheating process system for efficiently and cost-reducing producing superheated steam, which comprises a coke oven riser body, a mounting flange fixedly connected to the lower end of the coke oven riser body, a raw coal gas introduction device arranged at the lower end of the mounting flange, a supporting frame attached to the upper end of the coke oven riser body, a mounting mechanism, the mounting mechanism being symmetrically arranged at the left and right ends of the mounting flange, and a mounting cap being threadedly connected to the outer surface of a fixed column and being attached between the fixed column and a fixed plate. The coke oven riser superheating process system for efficiently and cost-reducing producing superheated steam is convenient for mounting and connecting the coke oven riser body and the raw coal gas introduction device, and after one-time heat exchange through a sinking-inserted heat exchanger, secondary heat exchange is conducted through an outer-disc heat exchanger, so that the heat exchange efficiency is greatly improved, heat loss is prevented, and better heat exchange effect is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of waste heat recovery from coke oven raw gas, specifically to a high-efficiency, cost-reducing coke oven riser superheating process system for producing superheated steam. Background Technology

[0002] Coke oven gas, also known as coke gas, refers to the coke oven gas produced during the production process. Coke gas contains a large amount of heat, and if it is directly discharged, it will cause energy loss and waste. Therefore, it is necessary to use the corresponding coke oven riser pipe and corresponding process system to recover and utilize the heat of coke gas.

[0003] However, the commonly used coke oven riser superheating process system still has the following shortcomings:

[0004] 1. In actual use, the existing coke oven riser pipe superheating process system is inconvenient to install and connect the riser pipe to the raw coal gas introduction equipment. Moreover, the connection is not airtight and tight, which can easily lead to loosening and leakage.

[0005] 2. The existing coke oven riser pipe superheating process system has low heat exchange efficiency, and the high-temperature steam loses a lot of energy during transportation, resulting in poor actual heat exchange effect;

[0006] 3. In the existing coke oven riser pipe superheating process system, the heat exchange device is directly exposed to the outside, resulting in poor heat preservation and easy burns to workers outside the area, thus providing poor protection.

[0007] Therefore, we propose a high-efficiency, cost-reducing coke oven riser superheating process system for producing superheated steam, in order to solve the problems mentioned above. Summary of the Invention

[0008] The purpose of this invention is to provide a high-efficiency and cost-reducing coke oven riser superheating process system for producing superheated steam, in order to solve the problems mentioned in the background art, such as the inconvenience of installing and connecting the riser pipe and the raw coal gas introduction equipment in actual use, poor sealing and tightness of the connection, easy loosening and leakage, low heat exchange efficiency, large energy loss of high-temperature steam during transportation, poor actual heat exchange effect, and the heat exchange device being directly exposed to the outside, resulting in poor heat preservation and easy burns to outside workers, with poor protection effect.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and cost-reducing coke oven riser superheating process system for producing superheated steam, comprising a coke oven riser body, an installation flange fixedly connected to the lower end of the coke oven riser body, a raw coal gas introduction device disposed at the lower end of the installation flange, and a support frame attached to the upper end of the coke oven riser body.

[0010] Also includes:

[0011] The installation mechanism is symmetrically arranged at the left and right ends of the installation flange, and the installation mechanism is used to connect and limit the installation flange and the coke oven riser pipe body. A high-temperature resistant sealing gasket is tightly fitted between the installation flange and the raw coal gas introduction equipment.

[0012] The mounting cap is threaded onto the outer surface of the fixing column, and the fixing column and the fixing plate are fitted together. The fixing column is fixedly connected to the left and right sides of the upper end of the raw coal gas introduction equipment.

[0013] The heat exchange mechanism includes a submerged heat exchanger inserted into the coke oven riser body, a stabilizing frame sleeved on the outer surface of the middle part of the submerged heat exchanger, a connecting pipe for connection, and an outer disc heat exchanger installed on the outside of the coke oven riser body.

[0014] The limiting plate is connected to the protrusion with a "T" shape through a slot. The limiting plate is used to limit the distance between the support frame and the coke oven riser pipe body, and the protrusion is fixedly connected to the upper end of the support frame.

[0015] The support frame is fixedly installed at the upper end of the submerged heat exchanger.

[0016] Preferably, the installation mechanism includes a fixing block fixedly connected to the left and right sides of the upper end of the mounting flange, a movable plate with a "U" shape, a mounting bracket for limiting position, a fastening bolt for limiting position, and a fixing plate with an "L" shape.

[0017] Preferably, the movable plate is inserted into the middle of the fixed block, and the movable plate is connected to the mounting frame by a snap-fit ​​mechanism. Furthermore, the movable plate and the mounting frame are further limited by fastening bolts, and the mounting frame and the support column are connected by a slot.

[0018] The support column is fixedly connected to the fixed column.

[0019] Preferably, the lower end of the mounting bracket is engaged with a limiting block, and the limiting block and the movable block are fixedly connected. The upper side of the limiting block fits with the inner sidewall of the lower end of the fixed plate, and the limiting block forms an elastic structure at the lower end of the fixed plate through the movable block.

[0020] Preferably, a spring is provided between the movable block and the fixed plate, and the movable block and the fixed plate are connected by sliding means, and the fixed plate and the fixed column are connected by a slot.

[0021] Preferably, the upper right end of the submerged heat exchanger is connected to the inlet pipe, and the submerged heat exchanger is connected to the outer plate heat exchanger through the connecting pipe. The outer plate heat exchanger is covered with a protective cover, and the protective cover is fixedly connected to the outside of the coke oven riser pipe body.

[0022] The inner wall of the coke oven riser pipe body is coated with fire-retardant paint.

[0023] Preferably, the limiting plate is set at an equal angle at the edge of the support frame, and the limiting plate is connected to the mounting plate by sliding. The limiting plate, together with the protrusion, presses and limits the support frame and the coke oven riser pipe body.

[0024] Preferably, the lower end of the limiting plate is connected to the fixing bolt for adjustment by rotation, and the fixing bolt is threaded to the outside of the mounting plate, and the mounting plate is fixedly connected to the outside of the upper end of the coke oven riser pipe body.

[0025] Preferably, the superheating process system includes the following steps:

[0026] Step 1: Introduce the heat exchange fluid into the submersible heat exchanger through the inlet pipe;

[0027] Step 2: The submerged heat exchanger is inserted into the inside of the coke oven riser tube body, and the submerged heat exchanger is connected to the external plate heat exchanger through the connecting pipe. The external plate heat exchanger is coiled on the outer wall of the coke oven riser tube body.

[0028] Step 3: The heat exchange liquid undergoes primary heat exchange through a submerged heat exchanger and secondary heat exchange through an external plate heat exchanger.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: This efficient and cost-reducing coke oven riser pipe superheating process system for producing superheated steam facilitates the installation and connection between the coke oven riser pipe body and the raw coal gas introduction equipment through the setting of the installation mechanism. Combined with the setting of the high-temperature resistant sealing gasket, the overall sealing performance is good and leakage is prevented. Through the setting of the heat exchange mechanism, which includes a submerged heat exchanger, a stabilizer, a connecting pipe and an external plate heat exchanger, after the submerged heat exchanger performs the first heat exchange, the external plate heat exchanger performs the second heat exchange, which greatly improves the heat exchange efficiency, prevents heat loss, has a good heat exchange effect, low cost, improves efficiency, and is suitable for promotion.

[0030] 1. It is equipped with a high-temperature resistant sealing gasket and an installation mechanism. The installation mechanism is symmetrically arranged on the left and right ends of the installation flange. The installation mechanism includes a fixed block, a movable plate, an installation frame, fastening bolts, and a fixed plate. With the setting of the limit block and the installation cap, it is convenient to install and connect the coke oven riser pipe body and the raw coal gas introduction equipment. It has good stability. With the setting of the high-temperature resistant sealing gasket, the overall sealing performance is good and leakage is prevented.

[0031] 2. It is equipped with a heat exchange mechanism, which includes a submerged heat exchanger, a stabilizer, a connecting pipe, and an external plate heat exchanger. The submerged heat exchanger performs primary heat exchange, and the submerged heat exchanger is connected to the external plate heat exchanger through the connecting pipe. The external plate heat exchanger performs heat exchange, resulting in good overall heat exchange performance and preventing heat loss.

[0032] 3. Equipped with a protective cover, fire-retardant coating, and limiting plate. The limiting plate is set at an equal angle at the upper end of the coke oven riser pipe body, which facilitates the limiting of the support frame and the coke oven riser pipe body. This facilitates the installation limiting of the submerged heat exchanger and the coke oven riser pipe body. Combined with the fire-retardant coating, it enhances the high-temperature resistance of the coke oven riser pipe body and prevents steam from coking when it encounters cold. The protective cover is set on the outside of the outer plate heat exchanger, which has a good heat preservation effect and prevents the outer plate heat exchanger from being exposed to the outside and causing burns to the staff. Attached Figure Description

[0033] Figure 1 This is a frontal cross-sectional view of the present invention;

[0034] Figure 2 This is a front view schematic diagram of the connection between the external plate heat exchanger and the coke oven riser body of the present invention;

[0035] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0036] Figure 4 This is a front view schematic diagram of the connection structure between the fixed plate, the movable block, and the limiting block of the present invention;

[0037] Figure 5 This is a front view schematic diagram of the connection between the movable plate and the mounting frame of the present invention;

[0038] Figure 6 This is a front view of the submerged heat exchanger, stabilizer, and connection to the inlet pipe of the present invention.

[0039] Figure 7 For the present invention Figure 1 Enlarged structural diagram at point B;

[0040] Figure 8 This is a top view schematic diagram of the connection between the coke oven riser pipe body and the limiting plate of the present invention;

[0041] Figure 9 This is a front view schematic diagram of the connection between the limiting plate and the fixing bolt of the present invention;

[0042] Figure 10 This is a schematic diagram of the workflow structure of the present invention.

[0043] In the diagram: 1. Coke oven riser pipe body; 2. Mounting flange; 3. Raw coal gas introduction equipment; 4. High-temperature resistant sealing gasket; 5. Mounting mechanism; 6. Fixing block; 7. Movable plate; 8. Mounting frame; 9. Fastening bolt; 10. Fixing plate; 11. Spring; 12. Movable block; 13. Limiting block; 14. Fixing column; 15. Support column; 16. Mounting cap; 17. Fireproof coating; 18. Heat exchange mechanism; 19. Submerged heat exchanger; 20. Stabilizing frame; 21. Connecting pipe; 22. External disc heat exchanger; 23. Protective cover; 24. Support frame; 25. Protrusion; 26. Limiting plate; 27. Fixing bolt; 28. Mounting plate; 29. ​​Inlet pipe. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figure 1-10 This invention provides a technical solution: a high-efficiency, cost-reducing coke oven riser superheating process system for producing superheated steam, comprising a coke oven riser body 1, a mounting flange 2, a raw coal gas introduction device 3, a high-temperature resistant sealing gasket 4, a mounting mechanism 5, a fixing block 6, a movable plate 7, a mounting frame 8, fastening bolts 9, a fixing plate 10, a spring 11, a movable block 12, a limiting block 13, a fixing column 14, a support column 15, a mounting cap 16, fireproof coating 17, a heat exchange mechanism 18, a submerged heat exchanger 19, a stabilizing frame 20, a connecting pipe 21, an external disc heat exchanger 22, a protective cover 23, a support frame 24, a protrusion 25, a limiting plate 26, a fixing bolt 27, a mounting plate 28, and an inlet pipe 29.

[0046] When using this efficient and cost-effective coke oven riser superheating process system for producing superheated steam... Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the lower end of the coke oven riser pipe body 1 is fixedly connected to the mounting flange 2, and the coke oven riser pipe body 1 is connected to the raw coal gas inlet device 3 through the mounting flange 2. A high-temperature resistant sealing gasket 4 is tightly fitted between the mounting flange 2 and the raw coal gas inlet device 3. The high-temperature resistant sealing gasket 4 can achieve a certain sealing effect to prevent leakage. The upper end of the coke oven riser pipe body 1 is connected to the raw coal gas outlet device (not shown in the figure). Combined with the installation mechanism 5, the limiting block 13 and the installation cap 16, it is convenient to limit the movement between the mounting flange 2 and the raw coal gas inlet device 3. The installation mechanism 5 includes a fixing block 6 fixedly connected to the left and right sides of the upper end of the mounting flange 2, a movable plate 7 with a "U" shape, an installation bracket 8 for limiting, a fastening bolt 9 for limiting, and a fixing plate 10 with an "L" shape.

[0047] First, insert the movable plate 7 into the middle of the fixed block 6, and then insert the movable plate 7 into the upper end of the mounting bracket 8. Next, pull the mounting bracket 8 downwards to engage with the movable plate 7. Secure the mounting bracket 8 and movable plate 7 together using the fastening bolt 9. Insert a screwdriver into the through hole at the upper end of the movable plate 7 and rotate the fastening bolt 9. Rotating the fastening bolt 9 further secures the movable plate 7 and mounting bracket 8. The mounting bracket 8 and support column 15 are connected via a slotted connection. Meanwhile, a fixed column 14 is fixedly connected to the lower end of the support column 15. The fixed column 14 and the fixed plate 10 are connected by a slot. A spring 11 is fixedly connected to the lower end of the fixed plate 10. A movable block 12 is fixedly connected to the movable end of the spring 11. The movable block 12 is connected to the limiting block 13. At the same time, the upper side of the limiting block 13 fits with the groove at the lower end of the mounting bracket 8. The fixed plate 10 is pulled towards the side close to the vertical central axis of the coke oven riser pipe body 1, and the fixed plate 10 and the fixed column 14 move together.

[0048] Simultaneously, the fixed plate 10 drives the limiting block 13 to move, and the limiting block 13 forms an elastic structure with the fixed plate 10 through the movable block 12. When the limiting block 13 contacts the lower end of the mounting frame 8, the mounting frame 8 presses the limiting block 13, causing the limiting block 13 to drive the movable block 12 to slide between the fixed plate 10. The movable block 12 presses the spring 11, causing the spring 11 to undergo elastic deformation. After the limiting block 13 is inserted into the lower end of the mounting frame 8, the spring 11 returns to its elastic deformation, driving... The movable block 12 slides between itself and the fixed plate 10. The movable block 12 drives the limiting block 13 to engage with the lower end of the mounting frame 8. Then, the mounting cap 16, which is threaded to the outer surface of the fixed column 14, is rotated. The mounting cap 16 pushes the fixed plate 10 downward to limit the distance between the fixed plate 10 and the fixed column 14. With the combination of the mounting cap 16, the limiting block 13 and the mounting mechanism 5, the coke oven riser pipe body 1 and the raw coal gas introduction equipment 3 can be installed and limited very conveniently, and the overall fastening is good.

[0049] After installation, as follows Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the heat exchange mechanism 18 includes a submerged heat exchanger 19 inserted into the coke oven riser pipe body 1, a stabilizing frame 20 sleeved on the outer surface of the middle part of the submerged heat exchanger 19, a connecting pipe 21, and an outer disc heat exchanger 22 installed on the outside of the coke oven riser pipe body 1. The submerged heat exchanger 19 is installed at the lower end of the support frame 24. The support frame 24 drives the submerged heat exchanger 19 to be inserted into the coke oven riser pipe body 1. At the same time, the submerged heat exchanger 19 is connected to the external water source through the inlet pipe 29. The upper end of the support frame 24 is fixedly connected to a protrusion 25 with a "T" shape structure, which is connected to the mounting plate 2 by rotational thread. The fixing bolt 27 on the outside rotates with the limiting plate 26, and the limiting plate 26 is set at an equal angle at the edge of the support frame 24. The fixing bolt 27 drives the limiting plate 26 to slide with the mounting plate 28, so that the limiting plate 26 and the protrusion 25 are connected by a slot, thereby limiting the installation between the support frame 24 and the coke oven riser body 1, making the connection between the submerged heat exchanger 19 and the coke oven riser body 1 more stable. The pipes inside the submerged heat exchanger 19 are connected by the stabilizing frame 20, making the connection between the pipes inside the submerged heat exchanger 19 more secure.

[0050] Meanwhile, the upper left end of the submerged heat exchanger 19 is connected to the outer disc heat exchanger 22 via the connecting pipe 21. The outer disc heat exchanger 22 is coiled on the outside of the coke oven riser body 1. When the coke oven riser body 1 introduces raw coal gas into its interior, water passes through the submerged heat exchanger 19 and is transported to the pipe inside the coke oven riser body 1. Then, it is transmitted to the outer disc heat exchanger 22 via the connecting pipe 21. Figure 10 As shown, the heat exchange process involves primary heat exchange via the submerged heat exchanger 19, followed by secondary heat exchange via the external plate heat exchanger 22. The overall heat exchange process system consists of the following steps:

[0051] Step 1: Introduce the heat exchange liquid into the submersible heat exchanger 19 through the inlet pipe 29;

[0052] Step 2: The submerged heat exchanger 19 is inserted into the inside of the coke oven riser body 1, and the submerged heat exchanger 19 is connected to the external plate heat exchanger 22 through the connecting pipe 21, and the external plate heat exchanger 22 is coiled on the outer wall of the coke oven riser body 1.

[0053] Step 3: The heat exchange liquid undergoes primary heat exchange through the submerged heat exchanger 19 and secondary heat exchange through the external plate heat exchanger 22.

[0054] The above steps generally result in high overall heat exchange efficiency, prevent heat loss, achieve better heat exchange effect, reduce actual operating costs, and are suitable for widespread use. After heat exchange is completed, the liquid can be discharged outward through the pipe at the lower right end of the external plate heat exchanger 22. The above operation can usually perform circulating heat exchange, making it highly practical.

[0055] In addition, a protective cover 23 is fixedly connected to the middle of the coke oven riser pipe body 1. The protective cover 23 covers the outside of the outer plate heat exchanger 22. The protective cover 23 can play a certain heat preservation effect and prevent the outer plate heat exchanger 22 from being exposed and causing burns to the staff. At the same time, the inner wall of the coke oven riser pipe body 1 is coated with fireproof coating 17, which can effectively prevent steam from coking when it encounters cold, and has high practicality.

[0056] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency and cost-reducing coke oven riser superheating process system for producing superheated steam, comprising a coke oven riser body (1), an installation flange (2) fixedly connected to the lower end of the coke oven riser body (1), a raw coal gas introduction device (3) disposed at the lower end of the installation flange (2), and a support frame (24) attached to the upper end of the coke oven riser body (1). Its features are, Also includes: The installation mechanism (5) is symmetrically arranged at the left and right ends of the installation flange (2), and the installation mechanism (5) is used to connect and limit the installation flange (2) and the coke oven riser pipe body (1), and a high temperature resistant sealing gasket (4) is tightly fitted between the installation flange (2) and the raw coal gas introduction device (3). Mounting cap (16), which is threaded to the outer surface of fixing column (14), and fixing column (14) and fixing plate (10) are fitted together, and fixing column (14) is fixedly connected to the left and right sides of the upper end of raw coal gas introduction device (3); The heat exchange mechanism (18) includes a submerged heat exchanger (19) inserted into the coke oven riser body (1), a stabilizing frame (20) sleeved on the outer surface of the middle part of the submerged heat exchanger (19), a connecting pipe (21) for connection, and an outer plate heat exchanger (22) installed on the outside of the coke oven riser body (1). The limiting plate (26) is connected to the protrusion (25) in a "T" shape by means of a slot. The limiting plate (26) is used to limit the distance between the support frame (24) and the coke oven riser pipe body (1). The protrusion (25) is fixedly connected to the upper end of the support frame (24). The support frame (24) is fixedly installed at the upper end of the submerged heat exchanger (19).

2. The coke oven riser superheating process system for producing superheated steam according to claim 1, characterized in that: The installation mechanism (5) includes a fixing block (6) fixedly connected to the left and right sides of the upper end of the mounting flange (2), a movable plate (7) in the shape of a "U", a mounting bracket (8) for limiting position, a fastening bolt (9) for limiting position, and a fixing plate (10) in the shape of an "L".

3. The coke oven riser superheating process system for producing superheated steam according to claim 2, characterized in that: The movable plate (7) is inserted into the middle of the fixed block (6), and the movable plate (7) is connected to the mounting frame (8) by a snap-fit. The movable plate (7) and the mounting frame (8) are further limited by fastening bolts (9), and the mounting frame (8) and the support column (15) are connected by a slot. The support column (15) is fixedly connected to the fixed column (14).

4. The coke oven riser superheating process system for producing superheated steam according to claim 3, characterized in that: The lower end of the mounting bracket (8) is engaged with a limiting block (13), and the limiting block (13) is fixedly connected to the movable block (12). The upper side of the limiting block (13) fits against the inner sidewall of the lower end of the fixed plate (10), and the limiting block (13) forms an elastic structure at the lower end of the fixed plate (10) through the movable block (12).

5. The coke oven riser superheating process system for producing superheated steam according to claim 4, characterized in that: A spring (11) is provided between the movable block (12) and the fixed plate (10), and the movable block (12) and the fixed plate (10) are connected by sliding, and the fixed plate (10) and the fixed column (14) are connected by a slot.

6. The coke oven riser superheating process system for producing superheated steam according to claim 1, characterized in that: The upper right end of the submerged heat exchanger (19) is connected to the inlet pipe (29), and the submerged heat exchanger (19) is connected to the outer plate heat exchanger (22) through the connecting pipe (21). The outer plate heat exchanger (22) is covered with a protective cover (23), and the protective cover (23) is fixedly connected to the outside of the coke oven riser body (1). The inner wall of the coke oven riser pipe body (1) is coated with fireproof coating (17).

7. The coke oven riser superheating process system for producing superheated steam according to claim 1, characterized in that: The limiting plate (26) is set at an equal angle at the edge of the support frame (24), and the limiting plate (26) and the mounting plate (28) are connected by sliding. The limiting plate (26) and the protrusion (25) press and limit the support frame (24) and the coke oven riser pipe body (1).

8. The coke oven riser superheating process system for producing superheated steam according to claim 7, characterized in that: The lower end of the limiting plate (26) is connected to the fixing bolt (27) for adjustment by rotation, and the fixing bolt (27) is threaded to the outside of the mounting plate (28), and the mounting plate (28) is fixedly connected to the outside of the upper end of the coke oven riser pipe body (1).

9. The coke oven riser superheating process system for producing superheated steam according to claim 7, characterized in that: The superheating process system includes the following steps: Step 1: Introduce the heat exchange liquid into the submerged heat exchanger (19) through the inlet pipe (29); Step 2: The submerged heat exchanger (19) is inserted into the inside of the coke oven riser body (1), and the submerged heat exchanger (19) is connected to the external plate heat exchanger (22) through the connecting pipe (21), and the external plate heat exchanger (22) is coiled on the outer wall of the coke oven riser body (1). Step 3: The heat exchange liquid is subjected to primary heat exchange through the submerged heat exchanger (19), and secondary heat exchange through the external plate heat exchanger (22).

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