Waste heat recovery device of power generation boiler

Abstract

The utility model discloses a waste heat recovery device of a power generation boiler, which relates to the technical field of waste heat recovery devices and comprises a connecting pipeline, support rings are arranged below two ends of the connecting pipeline, two groups of fixing rings are symmetrically arranged above the connecting pipeline, fixing grooves are arranged on the inner walls of two ends of a protective cover, and the protective cover is arranged in the fixing grooves. A sealing ring is arranged on the inner side of the fixing groove, a threaded water pipe is arranged on the outer side of the connecting pipeline, a heat preservation box is arranged at the front end of the connecting pipeline, and conveying pipelines are arranged between the raw water tank and the threaded water pipe and between the heat preservation box and the threaded water pipe. According to the waste heat recovery device of the power generation boiler, smoke generated during combustion of the power generation boiler is collected through the arranged connecting pipeline, water in the threaded water pipe is heated through heat carried by the collected smoke, waste heat of the boiler is recycled, and the waste heat of the power generation boiler is recycled. And the threaded water pipe is protected through the arranged protective cover, meanwhile, heat preservation is conducted on the threaded water pipe, and heat loss is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery device technical field, especially in a kind of power generation boiler waste heat recovery device. BACKGROUND

[0002] With the global energy conservation and emission reduction, waste heat recovery technology is more and more widely used in industrial production. A large amount of waste gas and waste heat will be generated in the operation process of power generation boiler, if these waste heat can be effectively recovered, not only the thermal efficiency of system can be improved, but also fuel consumption and operating cost can be reduced, and waste heat recovery device is usually used to recover the waste heat of boiler in the use process of power generation boiler.

[0003] The existing waste heat recovery device is inconvenient for workers to install and protect the equipment when installing and using, which leads to low waste heat recovery efficiency, low stability of the equipment during use, and brings certain adverse effects to the use process of people, in order to solve the problems in the background art, we propose a kind of power generation boiler waste heat recovery device. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of power generation boiler waste heat recovery device, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of power generation boiler waste heat recovery device, including connecting pipeline, the lower part of the both ends of connecting pipeline is provided with support ring, the lower part of support ring is provided with two groups of stand symmetrically, the upper part of connecting pipeline is provided with two groups of fixed ring symmetrically, locking bolt is arranged between fixed ring and support ring, the outer side of the middle of connecting pipeline is provided with two groups of protective cover symmetrically, the inner wall of both ends of protective cover is provided with fixed slot, the inner side of fixed slot is provided with sealing ring, the upper and lower end outer surfaces of protective cover are both provided with fixed block, the upper and lower end outer surfaces of the other group of protective cover are both provided with second fixed block symmetrically, the side of fixed block is provided with threaded rod, the front end of threaded rod is provided with rotary handle, the front end inner wall of threaded rod is provided with threaded hole, fixed screw is arranged between rotary handle and threaded rod, the outer side of connecting pipeline is provided with threaded water pipe, the threaded water pipe is arranged between the inner side of protective cover and connecting pipeline, the front end of connecting pipeline is provided with heat preservation box, the front end of heat preservation box is provided with water outlet pipe, the upper part of water outlet pipe is provided with control valve, the rear end of connecting pipeline is provided with raw water tank, raw water tank and heat preservation box are both provided with conveying pipeline between threaded water pipe, the upper end outer surface of one group of conveying pipeline is provided with water pump.

[0007] Preferably, the connecting pipe is detachably connected with the support ring, the fixing ring is detachably connected with the support ring through the locking bolt, and the threaded water pipe is detachably connected with the connecting pipe.

[0008] Preferably, the fixing block is fixedly arranged on the outer side of the protective cover, the threaded rod is threadedly connected with the first fixing block, and the rotating handle is detachably connected with the threaded rod through the fixing screw.

[0009] Preferably, the sealing ring is detachably connected with the protective cover through the fixing groove, the inner diameter of the protective cover is greater than the outer diameter of the connecting pipe, and the inner side surface of the sealing ring is attached to the outer surface of the connecting pipe.

[0010] Preferably, the front ends of the conveying pipes are connected with the rear end of the heat preservation box, the other ends are connected with the left end of the threaded water pipe, the water outlet pipe is fixedly arranged on the front end of the heat preservation box, and the control valve is detachably connected with the water outlet pipe.

[0011] Preferably, the front ends of the conveying pipes are connected with the right end of the threaded water pipe, the rear ends are connected with the outer surface of the front end of the raw water tank, and the water pump is detachably connected with the conveying pipe.

[0012] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0013] 1、In the utility model, the connecting pipe is connected with the pipe of the power generation boiler, the flue gas generated by combustion is transported to the inside of the connecting pipe, the heat carried in the flue gas heats the water in the threaded water pipe, thereby recycling the waste heat, the heat preservation box is arranged to collect hot water, and the staff can use conveniently.

[0014] 2、In the utility model, the protective cover is arranged to protect the threaded water pipe and the connecting pipe, prevent heat loss, the support ring and the fixing ring are arranged to facilitate the staff to fix the connecting pipe, thereby improving the stability, the water pump is arranged to transport the tap water in the raw water tank to the inside of the threaded water pipe, and the conveying pipe is arranged to transport the heated tap water to the inside of the heat preservation box for storage, thereby facilitating the staff to use. DETAILED DESCRIPTION

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the support ring structure schematic view of the utility model;

[0017] Figure 3 It is the protective cover structure schematic view of the utility model;

[0018] Figure 4This is a schematic diagram of the connecting pipe structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the rotary handle and the threaded rod of this utility model.

[0020] In the diagram: 1. Connecting pipe; 2. Support ring; 3. Fixing ring; 4. Column; 5. Locking bolt; 6. Protective cover; 7. Fixing block; 8. Threaded rod; 9. Fixing groove; 10. Sealing ring; 11. Threaded hole; 12. Rotating handle; 13. Fixing screw; 14. Threaded water pipe; 15. Insulation box; 16. Water outlet pipe; 17. Control valve; 18. Raw water tank; 19. Delivery pipe; 20. Water pump. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Example 1, as Figures 1-5 As shown, a waste heat recovery device for a power generation boiler includes a connecting pipe 1. Support rings 2 are provided on the outer sides of both ends of the connecting pipe 1. The operator places the connecting pipe 1 inside the two sets of support rings 2 and fixes the fixing rings 3 above the support rings 2 with locking bolts 5, thereby connecting the connecting pipe 1 to the boiler combustion pipe. The connecting pipe 1 collects the flue gas generated during boiler combustion. Then, the water pump 20 delivers tap water from the raw water tank 18 to the inside of the threaded water pipe 14 for heating. The rotating handle 12 and the threaded rod 8 fix two sets of protective covers 6 on the outside of the connecting pipe 1 to protect the threaded water pipe 14 and the connecting pipe 1 from external impacts that could cause the threaded water pipe 14 to break. At the same time, it prevents heat loss from the surface of the threaded water pipe 14, thus playing a heat preservation role.

[0023] Example 2, as Figures 1-5 As shown, a waste heat recovery device for a power generation boiler uses a sealing ring 10 to seal the protective cover 6 and the connecting pipe 1 to prevent internal heat loss. When the staff needs to utilize the waste heat of the power generation boiler, they start the water pump 20, which transports tap water from the raw water tank 18 to the threaded water pipe 14 for heating. After heating, the hot water from the threaded water pipe 14 is transported to the heat preservation box 15 for storage through the delivery pipe 19. When the staff needs to use hot water, they only need to open the control valve 17 to release the hot water from the heat preservation box 15 through the outlet pipe 16 for convenient use.

[0024] It should be noted that this utility model is a waste heat recovery device for a power generation boiler. When assembling the equipment, the threaded water pipe 14 is fitted over the outside of the connecting pipe 1. The connecting pipe 1 is then placed horizontally inside the support ring 2. The support ring 2 and the column 4 support the connecting pipe 1. The fixing ring 3 is pressed onto the connecting pipe 1, and the locking bolt 5 is used to fix the connecting pipe 1 to the inside of the support ring 2. The right end of the connecting pipe 1 is then connected to the flue gas discharge pipe of the power generation boiler. Two sets of protective covers 6 are wrapped around the outside of the threaded water pipe 14 and the connecting pipe 1. The threaded rod 8 is passed through the inner wall of the fixing block 7 above the protective cover 6. The rotating handle 12 is then connected to the threaded rod 8 using the fixing screw 13. The connection is made by clamping the second fixing block 21 inside the first fixing block 7. As the operator rotates the rotating handle 12 and the threaded rod 8, the rear end of the threaded rod 8 presses against the front outer surface of the second fixing block 21, making it close to the first fixing block 7, thereby fixing the two sets of protective covers 6 and protecting the threaded water pipe 14 and the connecting pipe 1. Then, the conveying pipe 19 is passed through the inner wall of one set of protective covers 6 and connected to the right end of the threaded water pipe 14. The conveying pipe 19 is passed through the inner wall of the other set of protective covers 6 and connected to the rear end face of the insulation box 15. The water pump 20 is used to transport the water inside the original water tank 18 to the inside of the threaded water pipe 14 for heating. The hot water is transported to the inside of the insulation box 15 for storage through the other set of conveying pipes 19.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a power generation boiler, comprising a connecting pipe (1), characterized in that: Support rings (2) are provided below both ends of the connecting pipe (1). Two sets of columns (4) are symmetrically arranged below the support rings (2). Two sets of fixing rings (3) are symmetrically arranged above the connecting pipe (1). Locking bolts (5) are provided between the fixing rings (3) and the support rings (2). Two sets of protective covers (6) are symmetrically arranged on the outer side of the middle of the connecting pipe (1). Fixing grooves (9) are provided on the inner walls of both ends of the protective covers (6). Sealing rings (10) are provided on the inner side of the fixing grooves (9). Fixing blocks (7) are provided on the outer surfaces of the upper and lower ends of one set of protective covers (6). Second fixing blocks (21) are symmetrically arranged on the outer surfaces of the upper and lower ends of the other set of protective covers (6). A threaded rod (8) is provided on one side of the fixing block (7). A rotating handle is provided at the front end of the threaded rod (8). 12) The inner wall of the front end of the threaded rod (8) is provided with a threaded hole (11), and a fixing screw (13) is provided between the rotating handle (12) and the threaded rod (8). A threaded water pipe (14) is provided on the outside of the connecting pipe (1). The threaded water pipe (14) is provided between the inner side of the protective cover (6) and the connecting pipe (1). A heat preservation box (15) is provided at the front end of the connecting pipe (1). A water outlet pipe (16) is provided at the front end of the heat preservation box (15). A control valve (17) is provided above the water outlet pipe (16). A raw water tank (18) is provided at the rear end of the connecting pipe (1). A conveying pipe (19) is provided between the raw water tank (18), the heat preservation box (15) and the threaded water pipe (14). A water pump (20) is provided on the upper outer surface of a set of conveying pipes (19).

2. The waste heat recovery device for a power generation boiler according to claim 1, characterized in that: The connecting pipe (1) is detachably connected to the support ring (2), the fixing ring (3) is detachably connected to the support ring (2) by the locking bolt (5), and the threaded water pipe (14) is detachably connected to the connecting pipe (1).

3. The waste heat recovery device for a power generation boiler according to claim 1, characterized in that: The fixing block (7) is fixedly installed on the outside of the protective cover (6), the threaded rod (8) is threadedly connected to the first fixing block (7), and the rotating handle (12) is detachably connected to the threaded rod (8) by the fixing screw (13).

4. The waste heat recovery device for a power generation boiler according to claim 1, characterized in that: The sealing ring (10) is detachably connected to the protective cover (6) through the fixed groove (9). The inner diameter of the protective cover (6) is larger than the outer diameter of the connecting pipe (1). The inner side of the sealing ring (10) is in contact with the outer surface of the connecting pipe (1).

5. The waste heat recovery device for a power generation boiler according to claim 1, characterized in that: The front end of a set of conveying pipes (19) is connected to the rear end of the insulation box (15), and the other end is connected to the left end of the threaded water pipe (14). The water outlet pipe (16) is fixedly installed at the front end of the insulation box (15), and the control valve (17) is detachably connected to the water outlet pipe (16).

6. The waste heat recovery device for a power generation boiler according to claim 1, characterized in that: The front end of the other set of conveying pipes (19) is connected to the right end of the threaded water pipe (14), and the rear end is connected to the front outer surface of the original water tank (18). The water pump (20) is detachably connected to the conveying pipes (19).

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