Novel superheater of waste heat boiler for cement waste heat power generation

Abstract

The utility model relates to the technical field of superheaters, and discloses a novel superheater of a cement waste heat power generation waste heat boiler, which comprises a communicating plate and a plurality of heat exchange pipes arranged on two sides of the communicating plate, two sides of the communicating plate are fixedly connected and communicated with a plurality of connecting pipes, two ends of the plurality of heat exchange pipes are respectively communicated with two adjacent connecting pipes, and the connecting pipes are fixedly connected with the communicating plate. Connecting assemblies are connected between the ends of the heat exchange pipes and the adjacent connecting pipes, the outer sides of the two ends of the multiple heat exchange pipes are connected with outer heat conduction assemblies, and the inner sides of the two ends of the multiple heat exchange pipes are connected with inner heat conduction assemblies. According to the novel superheater of the waste heat boiler for cement waste heat power generation, through the inner heat conduction assembly and the outer heat conduction assembly, the faster heat exchange effect of the heat exchange pipe can be achieved, the superheating effect of circulating steam in the heat exchange pipe is improved, and the situation that water drops in the steam enter the next link to cause erosion damage to subsequent equipment is reduced as much as possible or even eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a superheater technical field, concretely is a new type superheater of cement waste heat power generation waste heat boiler. BACKGROUND

[0002] Cement waste heat power generation technology is a kind of technology using waste heat generated in the process of cement production to generate electricity;This technology not only helps to improve energy utilization, reduce energy waste, but also reduces carbon emissions of cement production, which has positive significance for environmental protection;In the cement waste heat power generation system, the waste heat boiler is one of the key equipment, and the superheater as an important part of the waste heat boiler is crucial to improve the steam temperature and improve the power generation efficiency, the main function of the superheater is to heat the saturated steam to a superheated state higher than its saturation temperature, which can improve the enthalpy of steam, improve the quality and temperature of steam, so as to improve the efficiency of thermal cycle to meet the specific process requirements or improve the power generation efficiency, while ensuring that the superheated steam does not contain water, avoiding the erosion of water droplets to turbine blades and other equipment, prolonging the service life of the equipment.

[0003] When the heat exchanger heats the steam, the steam flows through the inside of the heat exchanger, and the high-temperature flue gas or other heat source outside the heat exchanger contacts the heat exchanger, so as to transfer heat to the heat exchanger, and then the heat exchanger transfers the high-temperature heat to the steam flowing inside, so as to heat the steam to a superheated state.

[0004] The patent with publication number CN221172222U discloses a new type of superheater, which comprises a communication plate symmetrically and detachably installed with a heat exchange pipe assembly on both sides, a connecting pipe is symmetrically installed on both end portions of the communication plate, an outer thread one is formed on the outer edge surface of the end of the connecting pipe away from the communication plate, the heat exchange pipe assembly comprises a U-shaped heat exchange pipe body with an outer thread two formed on the outer edge surface of both ends, both ends of the U-shaped heat exchange pipe body are detachably inserted and connected into the connecting pipe, a pipe joint threadedly connected with the outer thread two and the outer thread one is detachably installed outside the connection between the two ends of the U-shaped heat exchange pipe body and the connecting pipe, an annular boss is formed on the inner edge surface of one end of the pipe joint, an inner thread two threadedly connected with the outer thread two is formed on the inner edge surface of the annular boss, the structure is reasonable, the pipe is independently detached and replaced, which is beneficial to reduce the maintenance cost and has high practicability.

[0005] However, the superheater in the above-mentioned technology still has the following problems:

[0006] Although the heat exchange pipe and the communication plate can be disassembled and replaced through the pipe joint, in the process that the external heat source transmits heat to the steam flowing in the heat exchange pipe through the pipe wall of the heat exchange pipe, part of the water droplets contained in the steam may flow through the heat exchange pipe with the steam, so that the water droplets cannot contact the inner wall of the heat exchange pipe, the heat transmission is insufficient, and the water droplets flow out of the heat exchange pipe without being sufficiently vaporized, thereby causing erosion and damage to the subsequent equipment (such as turbine blades). Utility model content

[0007] In view of the defects of the prior art, the utility model provides a new superheater of a cement waste heat power generation waste heat boiler, such as: increasing the contact area between steam and the inside of the heat exchange pipe, so that the water droplets in the steam contact the pipe wall of the heat exchange pipe as much as possible, so that the water droplets in the steam are sufficiently vaporized, the superheating effect of the steam is improved, the possibility of water droplets flowing into the next device through the heat exchange pipe is reduced, and the heat exchange effect is improved.

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: a new superheater of a cement waste heat power generation waste heat boiler, comprising a communication plate and a plurality of heat exchange pipes installed on both sides of the communication plate, a plurality of connecting pipes are fixedly connected and communicated on both sides of the communication plate, the two ends of the plurality of heat exchange pipes are communicated with the adjacent two connecting pipes respectively, a connecting assembly is connected between the end of the heat exchange pipe and the adjacent connecting pipe, the outer side of the two ends of the plurality of heat exchange pipes is connected with an outer heat conduction assembly, and the inner side of the two ends of the plurality of heat exchange pipes is connected with an inner heat conduction assembly.

[0009] Further, the connecting assembly comprises an internal thread pipe and a rotating ring, the outer side of the connecting pipe is provided with an annular rotating groove, the rotating ring is rotatably connected with the adjacent annular rotating groove, the internal thread pipe is sleeved with the connecting pipe and is fixedly connected with the side of the rotating ring away from the communication plate, and the end of the internal thread pipe away from the rotating ring is sleeved with the end of the heat exchange pipe and is threadedly connected with the heat exchange pipe.

[0010] Further, the outer heat conduction assembly comprises a sleeve ring and a plurality of outer fins, the plurality of outer fins are uniformly distributed on the outer side of the sleeve ring and are fixedly connected with the sleeve ring, the sleeve ring is sleeved with the end outer wall of the heat exchange pipe and is slidably connected with the end outer wall of the heat exchange pipe.

[0011] Further, the inner wall of the sleeve ring is provided with a plurality of grooves, an arc-shaped elastic sheet is fixedly connected in each of the plurality of grooves, and the end of each of the plurality of arc-shaped elastic sheets away from the groove abuts against the heat exchange pipe.

[0012] Further, the inner heat conduction assembly comprises two fixed rings and a plurality of inner fins, the two ends of the plurality of inner fins are fixedly connected with the two fixed rings respectively, the two fixed rings and the plurality of inner fins are located inside the end of the heat exchange pipe and are slidably connected with the inner wall of the heat exchange pipe.

[0013] Furthermore, a threaded thread is provided on the outer side of one of the fixing rings, a threaded thread groove is provided on the inner wall of the end portion of the heat exchange tube, and the threaded thread is threadedly connected to the threaded thread groove.

[0014] Furthermore, a hand-tightening plate is fixedly connected to the inner wall of the fixing ring, and the hand-tightening plate is located on the inner side of the fixing ring provided with threaded teeth.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This new superheater for the waste heat boiler of cement waste heat power generation can achieve faster heat exchange effect of the heat exchange tube through internal heat conduction components and external heat conduction components, improve the superheating effect of the steam circulating inside the heat exchange tube, and minimize or even eliminate the water droplets in the steam from entering the next link, causing erosion and damage to subsequent equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance and connection structure of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of the connection structure between the heat exchange tube and the connecting tube of the utility model;

[0019] Figure 3 Based on Figure 2 A schematic cross-sectional view of a portion of the connection structure;

[0020] Figure 4 This is a schematic diagram of the overall appearance and connection structure of the heat exchange tube of the utility model from another angle;

[0021] Figure 5 Based on Figure 4 Exploded schematic diagram of the connection structure;

[0022] Figure 6 Based on Figure 5 Schematic diagram of the connection structure of the internal heat conduction component;

[0023] Figure 7 This is a schematic diagram of the connection structure of the external heat conduction component of the utility model;

[0024] Figure 8 Based on Figure 7 Schematic diagram of the cross-section of the connection structure.

[0025] In the figure: 1. Connecting plate; 2. Heat exchange tube; 3. Connecting tube; 4. Internally threaded tube; 5. Rotating ring; 6. Sleeve ring; 7. External fin; 8. Arc-shaped spring; 9. Fixed ring; 10. Internal fin; 11. Threaded thread; 12. Hand-tightening plate; 201. Threaded groove; 301. Rotating groove; 601. Groove. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0027] Please refer to Figure 1 - Figure 8 The utility model provides a cement cogeneration waste heat boiler new type superheater, including the communicating plate 1 and the multiple heat exchange tubes 2 of installing in the communicating plate 1 both sides, the both sides of communicating plate 1 are all fixedly connected and are connected with a plurality of connecting pipes 3, and the both ends of multiple heat exchange tubes 2 are communicated with adjacent two connecting pipes 3 respectively, and connecting assembly is connected between the end of heat exchange tube 2 and adjacent connecting pipe 3, and the outside of both ends of multiple heat exchange tubes 2 is connected with outer heat conduction assembly, and the inside of both ends of multiple heat exchange tubes 2 is connected with inner heat conduction assembly.

[0028] As Figure 1 - Figure 8 The utility model discloses a cement cogeneration waste heat boiler new type superheater, and the structure is similar to the prior art, such as the patent of a kind of new type superheater with the public number CN221172222U, the main improvement point of the utility model is to further improve the heat exchange effect of heat exchange tube 2, avoid that the water drop in the steam flowing through heat exchange tube 2 enters next equipment and causes equipment erosion damage, as Figures 1 to 8 The utility model discloses a cement cogeneration waste heat boiler new type superheater, and the structure is similar to the prior art, such as the patent of a kind of new type superheater with the public number CN221172222U, the main improvement point of the utility model is to further improve the heat exchange effect of heat exchange tube 2, avoid that the water drop in the steam flowing through heat exchange tube 2 enters next equipment and causes equipment erosion damage, as

[0029] As Figure 1 - Figure 3As shown, the connecting assembly includes an internally threaded pipe 4 and a rotating ring 5, the outer side of the connecting pipe 3 is provided with an annular rotating groove 301, the rotating ring 5 is rotationally connected with the adjacent annular rotating groove 301, the internally threaded pipe 4 is sleeved on the connecting pipe 3 and is fixedly connected with the rotating ring 5 away from the communication plate 1, and the end of the internally threaded pipe 4 away from the rotating ring 5 is sleeved on the end of the heat exchange pipe 2 and is threadedly connected with the heat exchange pipe 2. When the heat exchange pipe 2 is installed with the communication plate 1, the end of the heat exchange pipe 2 is close to the connecting pipe 3 on the side of the communication plate 1, and the internally threaded pipe 4 is rotated, the end of the heat exchange pipe 2 is gradually moved to the connecting pipe 3 through the threaded connection, and the end of the heat exchange pipe 2 is abutted against the end of the connecting pipe 3 by cooperating with the rotating ring 5, so that the heat exchange pipe 2 is installed, and the operation is simple and convenient, and the heat exchange pipe 2 can be quickly installed and disassembled.

[0030] As shown in Figure 1 - Figure 8 As shown, the outer heat conduction assembly includes a sleeve ring 6 and a plurality of outer fins 7, the plurality of outer fins 7 are uniformly distributed on the outer side of the sleeve ring 6 and are fixedly connected with the sleeve ring 6, and the sleeve ring 6 is sleeved on the outer wall of the end of the heat exchange pipe 2 and is slidably connected with the outer wall of the end of the heat exchange pipe 2. The heat source on the outer side of the heat exchange pipe 2 can be more quickly conducted to the heat exchange pipe 2 through the plurality of outer fins 7, and different numbers of outer heat conduction assemblies can be installed on heat exchange pipes 2 of different lengths through the sleeve ring 6, so that more different models of heat exchange pipes 2 can be used, the outer fins 7 greatly increase the heat conduction area of the heat source on the outer side of the heat exchange pipe 2, and more rapid heat conduction and heat exchange are realized.

[0031] As shown in Figure 7 and Figure 8 As shown, a plurality of recesses 601 are formed in the inner wall of the sleeve ring 6, a plurality of arc-shaped elastic sheets 8 are fixedly connected in the plurality of recesses 601, and the ends of the plurality of arc-shaped elastic sheets 8 away from the recesses 601 are abutted against the heat exchange pipe 2. When the sleeve ring 6 is sleeved on the outer side of the heat exchange pipe 2, the arc-shaped elastic sheets 8 in the recesses 601 extrude the outer wall of the heat exchange pipe 2, so that the connection between the sleeve ring 6 and the heat exchange pipe 2 is more close, and the heat source outside the heat exchange pipe 2 is prevented from impacting the outer fins 7, so that the sleeve ring 6 is prevented from being randomly slid on the heat exchange pipe 2, and the connection stability of the outer heat conduction assembly is improved.

[0032] As shown in Figure 4 - Figure 6As shown, the inner heat conduction assembly includes two fixed rings 9 and a plurality of inner fins 10, both ends of the plurality of inner fins 10 are fixedly connected with the two fixed rings 9 respectively, and the two fixed rings 9 and the plurality of inner fins 10 are located inside the end portion of the heat exchange pipe 2 and are in sliding connection with the inner wall of the heat exchange pipe 2. The plurality of inner fins 10 are linked into a whole through the two fixed rings 9, so that the entire inner heat conduction assembly can be conveniently inserted into the inside of the heat exchange pipe 2, and the contact area with the steam flowing in the heat exchange pipe 2 is increased through the plurality of inner fins 10, so that the conducted heat and the steam can be more fully exchanged, and the superheating effect of the steam in the heat exchange pipe 2 is improved. The outer wall of the two fixed rings 9 and the outward side of the plurality of inner fins 10 need to be in contact with the inner wall of the heat exchange pipe 2, so that the superheating heat of the heat exchange pipe 2 can be conducted to the inner fins 10.

[0033] As shown in Figure 5 and Figure 6 One of the fixed rings 9 is provided with a threaded tooth 11 on the outer side, and the end portion of the inner wall of the heat exchange pipe 2 is provided with a threaded tooth groove 201, and the threaded tooth 11 is in threaded connection with the threaded tooth groove 201. When installing the inner heat conduction assembly, the fixed ring 9 at the outward end can be screwed and fastened with the threaded tooth groove 201 on the inner side of the end portion of the heat exchange pipe 2 through the threaded tooth 11 on the outer side, so that the inner heat conduction assembly and the heat exchange pipe 2 are more tightly connected and installed, and the heat exchange and heat conduction effect between the heat exchange pipe 2 and the inner heat conduction assembly is further improved.

[0034] As shown in Figure 4 - Figure 6 The inner wall of the fixed ring 9 is fixedly connected with a hand screw plate 12, and the hand screw plate 12 is located on the inner side of the fixed ring 9 provided with the threaded tooth 11. Through the hand screw plate 12, the fixed ring 9 can be more conveniently rotated, so that the threaded tooth 11 and the threaded tooth groove 201 are in threaded connection and fixed.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application.

Claims

1. A new superheater for a waste heat boiler for cement waste heat power generation, comprising a connecting plate (1) and a plurality of heat exchange tubes (2) installed on both sides of the connecting plate (1), characterized in that: Both sides of the connecting plate (1) are fixedly connected and connected to a plurality of connecting pipes (3); both ends of the plurality of heat exchange pipes (2) are respectively connected to two adjacent connecting pipes (3); a connecting assembly is connected between the end of the heat exchange pipe (2) and the adjacent connecting pipe (3); the outer sides of both ends of the plurality of heat exchange pipes (2) are connected to an external heat conduction assembly; and the inner sides of both ends of the plurality of heat exchange pipes (2) are connected to an internal heat conduction assembly.

2. The new superheater for waste heat boiler for cement waste heat power generation according to claim 1 is characterized by: The connection assembly comprises an internally threaded tube (4) and a rotating ring (5); an annular rotating groove (301) is provided on the outer side of the connecting tube (3); the rotating ring (5) is rotatably connected to the adjacent annular rotating groove (301); the internally threaded tube (4) is sleeved on the connecting tube (3) and fixedly connected to the side of the rotating ring (5) away from the connecting plate (1); the end of the internally threaded tube (4) away from the rotating ring (5) is sleeved on the end of the heat exchange tube (2) and is threadedly connected to the heat exchange tube (2).

3. A new superheater for waste heat boiler for cement waste heat power generation according to claim 1 or 2, characterized in that: The external heat conduction component comprises a collar (6) and a plurality of external fins (7), wherein the plurality of external fins (7) are evenly distributed on the outside of the collar (6) and are fixedly connected to the collar (6), and the collar (6) is sleeved on the outer wall of the end of the heat exchange tube (2) and is slidably connected to the outer wall of the end of the heat exchange tube (2).

4. The new superheater for cement waste heat power generation waste heat boiler according to claim 3 is characterized by: The inner wall of the collar (6) is provided with a plurality of grooves (601), and arc-shaped spring pieces (8) are fixedly connected in the plurality of grooves (601), and the ends of the plurality of arc-shaped spring pieces (8) away from the grooves (601) are in contact with the heat exchange tube (2).

5. A new superheater for a waste heat boiler for cement waste heat power generation according to claim 1, 2 or 4, characterized in that: The internal heat conduction component comprises two fixing rings (9) and a plurality of inner fins (10), the two ends of the plurality of inner fins (10) being fixedly connected to the two fixing rings (9) respectively, and the two fixing rings (9) and the plurality of inner fins (10) being located inside the end of the heat exchange tube (2) and being slidably connected to the inner wall of the heat exchange tube (2).

6. The new superheater for cement waste heat power generation waste heat boiler according to claim 5 is characterized by: A threaded thread (11) is provided on the outer side of one of the fixing rings (9), a threaded thread groove (201) is provided on the inner wall of the end of the heat exchange tube (2), and the threaded thread (11) is threadedly connected to the threaded thread groove (201).

7. The new superheater for cement waste heat power generation waste heat boiler according to claim 5, characterized in that: The inner wall of the fixing ring (9) is fixedly connected with a hand-tightening plate (12), and the hand-tightening plate (12) is located on the inner side of the fixing ring (9) provided with threaded teeth (11).

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