Drip-proof continuous boiler blowdown device

Abstract

The utility model discloses a drip-proof boiler continuous blowdown device, which relates to the technical field of boiler blowdown and comprises a boiler drum and a sealing component, a continuous blowdown regulating valve is arranged in front of the boiler drum, and the sealing component is arranged on the surface of the continuous blowdown regulating valve. The sealing assembly comprises connecting flanges, a rear connecting pipe, a front connecting pipe, mounting bolts, a first sealing ring, a second sealing ring, a rubber sealing ring and fixing bolts, and the connecting flanges are arranged on the surfaces of the two sides of the lower end of the continuous row adjusting valve. According to the drip-proof boiler continuous blowdown device, the sealing performance of the adjusting valve of the device is greatly improved through the sealing assembly, the drip phenomenon is prevented, the adjusting valve can be rapidly disassembled and assembled, the adjusting valve with inner leakage is convenient to replace, drip caused by aging of the adjusting valve is avoided, continuous blowdown of a boiler can be achieved through the device through the blowdown assembly, and the service life of the boiler is prolonged. The salt content and alkalinity in the pot water are reduced, and the steam quality is prevented from being influenced by over-high concentration of the pot water.

Description

Technical Field

[0001] This utility model relates to the field of boiler blowdown technology, specifically to a drip-proof continuous boiler blowdown device. Background Technology

[0002] Boiler blowdown refers to the process of continuously removing boiler water with high salt and alkalinity content, as well as deposited slag, sludge, and loose sediments, from the boiler to control its water quality and keep impurities within specified limits. The main purpose of boiler blowdown is to maintain clean boiler water, prevent internal scaling and corrosion, and ensure steam quality and safe boiler operation. Therefore, a continuous boiler blowdown device is needed. However, current continuous boiler blowdown devices still have the following shortcomings:

[0003] For example, patent document CN217540704U discloses a boiler blowdown device. This boiler blowdown device, through the coordinated arrangement of a U-shaped pipe, a branch pipe, a splash guard, and a blowdown pipe, solves the problem of sewage splashing easily due to excessive blowdown pressure, improves the safety of blowdown, extends the life of the pipe, and avoids pipe damage caused by excessive pressure. However, during long-term use, the regulating valve may develop internal leakage, resulting in dripping. Poor sealing at the connection between the regulating valve and the pipe also easily leads to dripping.

[0004] Therefore, in view of this, we studied and improved the existing structure to propose a drip-proof continuous boiler blowdown device. Utility Model Content

[0005] The purpose of this invention is to provide a drip-proof continuous boiler blowdown device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drip-proof continuous blowdown device for boilers, comprising a boiler drum and a sealing assembly. A continuous blowdown regulating valve is provided in front of the boiler drum. The sealing assembly is disposed on the surface of the continuous blowdown regulating valve and includes a connecting flange, a rear connecting pipe, a front connecting pipe, mounting bolts, a first sealing ring, a second sealing ring, a rubber sealing ring, and fixing bolts. The connecting flange is disposed on both sides of the lower end of the continuous blowdown regulating valve, and the rear side of the lower end of the continuous blowdown regulating valve is connected to the rear connecting pipe through the connecting flange, and the front side of the lower end of the continuous blowdown regulating valve is connected to the front connecting pipe through the connecting flange. Mounting bolts are threaded on the inner side of the connecting flange, and two sets of connecting flanges are symmetrically arranged.

[0007] Furthermore, a first sealing ring is provided at the right end of the outer side of the connecting flange, and a second sealing ring is provided in front of the first sealing ring.

[0008] Furthermore, both the first sealing ring and the second sealing ring are provided with rubber sealing rings on their inner sides, and both ends of the first sealing ring and the second sealing ring are threaded with fixing bolts.

[0009] Furthermore, a drain valve is installed on the lower side of the boiler drum, and the lower end of the drain valve is connected to the rear end of the rear connecting pipe.

[0010] Furthermore, the front end of the connecting pipe is provided with a sewage discharge assembly for continuous sewage discharge, and the sewage discharge assembly includes a liquid pump, a liquid delivery pipe, a continuous discharge expansion container, a gas delivery pipe, a deaerator, and an exhaust port, with the liquid pump located at the front end of the connecting pipe.

[0011] Furthermore, the front end of the pump is connected to an infusion pipe, and a continuous expansion container is installed at the front end of the infusion pipe.

[0012] Furthermore, a gas supply pipe is installed on the top of the continuous expansion container, and a deaerator is provided at the lower front end of the gas supply pipe, with an exhaust port at the top of the deaerator.

[0013] Furthermore, the sewage discharge assembly also includes a drain pipe, a water pump, and a sewage treatment device. The lower right end of the continuous discharge expansion container is connected to a drain pipe, a water pump is installed at the right end of the drain pipe, and a sewage treatment device is installed at the right end of the water pump.

[0014] This utility model provides a drip-proof continuous boiler blowdown device, which has the following beneficial effects:

[0015] 1. This utility model, by setting a sealing assembly, includes a connecting flange, a rear connecting pipe, a front connecting pipe, mounting bolts, a first sealing ring, a second sealing ring, a rubber sealing ring, and fixing bolts. In use, the inlet and outlet of the continuous flow regulating valve are connected to the rear and front connecting pipes respectively through the connecting flange via the threaded connection of the mounting bolts to the connecting flange. The first sealing ring is clamped at the connection between the connecting flange and the rear and front connecting pipes, and the second sealing ring is clamped at the corresponding position of the first sealing ring. The second sealing ring and the first sealing ring form a protective structure at the connection. The second sealing ring and the first sealing ring are tightened by the threaded connection of the fixing bolts. At the same time, the rubber sealing ring further seals the connection, thereby greatly improving the sealing performance of the regulating valve of this device, preventing dripping, and allowing the regulating valve to be quickly disassembled and installed, facilitating the replacement of regulating valves with internal leakage, and avoiding dripping caused by aging of the regulating valve.

[0016] 2. This utility model incorporates a sewage discharge assembly, which includes a liquid pump, a delivery pipe, a continuous discharge expansion container, a gas delivery pipe, a deaerator, and an exhaust port. The assembly also includes a drain pipe, a water pump, and a sewage treatment device. In use, the liquid pump is activated to draw sewage through the front connecting pipe and deliver it to the continuous discharge expansion container via the delivery pipe. The continuous discharge expansion container separates secondary steam and waste hot water. The steam enters the deaerator through the gas delivery pipe, where oxygen is removed from the water, improving heating efficiency and reducing heat consumption. Simultaneously, the water pump is activated to pump the waste hot water through the liquid pump to the sewage treatment device for preliminary treatment. This allows the device to continuously discharge sewage from the boiler, reducing the salt content and alkalinity of the boiler water and preventing excessively high boiler water concentration from affecting steam quality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a drip-proof continuous boiler blowdown device according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the sealing component of a drip-proof continuous blowdown device for boilers according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the sewage discharge component of a continuous sewage discharge device for boilers that prevents dripping, according to this utility model.

[0020] In the diagram: 1. Boiler drum; 2. Continuous exhaust regulating valve; 3. Sealing assembly; 301. Connecting flange; 302. Rear connecting pipe; 303. Front connecting pipe; 304. Mounting bolt; 305. First sealing ring; 306. Second sealing ring; 307. Rubber sealing ring; 308. Fixing bolt; 4. Drain valve; 5. Drain assembly; 501. Liquid pump; 502. Liquid delivery pipe; 503. Continuous exhaust expansion tank; 504. Gas delivery pipe; 505. Deaerator; 506. Exhaust port; 507. Drain pipe; 508. Water pump; 509. Wastewater treatment device. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3As shown, a drip-proof continuous blowdown device for boilers includes a boiler drum 1 and a sealing assembly 3. A continuous blowdown regulating valve 2 is provided in front of the boiler drum 1. The sealing assembly 3 is provided on the surface of the continuous blowdown regulating valve 2 and includes a connecting flange 301, a rear connecting pipe 302, a front connecting pipe 303, mounting bolts 304, a first sealing ring 305, a second sealing ring 306, a rubber sealing ring 307, and fixing bolts 308. The connecting flange 301 is provided on both sides of the lower end of the continuous blowdown regulating valve 2. The rear side of the lower end of the continuous blowdown regulating valve 2 is connected to the rear connecting pipe 302 through the connecting flange 301, and the front side of the lower end of the continuous blowdown regulating valve 2 is connected to the front connecting pipe 303 through the connecting flange 301. The inner side of the connecting flange 301 is threaded with mounting bolts 304, and two sets of connecting flanges 301 are symmetrically arranged.

[0023] The specific operation is as follows: During use, the inlet and outlet of the continuous discharge regulating valve 2 are connected to the rear connecting pipe 302 and the front connecting pipe 303 respectively through the threaded connection of the mounting bolt 304 and the connecting flange 301. The first sealing ring 305 is clamped at the connection between the connecting flange 301 and the rear connecting pipe 302 and the front connecting pipe 303 respectively. The second sealing ring 306 is clamped at the corresponding position of the first sealing ring 305. The second sealing ring 306 and the first sealing ring 305 form a protective structure at the connection. The second sealing ring 306 and the first sealing ring 305 are tightened by the threaded connection of the fixing bolt 308. At the same time, the rubber sealing ring 307 will further seal the connection.

[0024] Please refer to Figure 1 and Figure 3A first sealing ring 305 is provided on the right side of the outer side of the connecting flange 301, and a second sealing ring 306 is provided on the front side of the first sealing ring 305. Rubber sealing rings 307 are provided on the inner sides of both the first sealing ring 305 and the second sealing ring 306. Fixing bolts 308 are threaded to both ends of the first sealing ring 305 and the second sealing ring 306. A blowdown valve 4 is installed on the lower side of the boiler drum 1, and the lower end of the blowdown valve 4 is connected to the rear end of the rear connecting pipe 302. A blowdown assembly 5 for continuous blowdown is provided at the front end of the front connecting pipe 303. The blowdown assembly 5 includes a liquid pump 501, a liquid delivery pipe 502, a continuous blowdown expansion tank 503, a gas delivery pipe 504, and a deaerator 505. The system includes an exhaust port 506, a liquid pump 501 located at the front end of the front connecting pipe 303, an infusion pipe 502 connected to the front end of the liquid pump 501, a continuous discharge expansion container 503 installed at the front end of the infusion pipe 502, an air supply pipe 504 installed at the top of the continuous discharge expansion container 503, a deaerator 505 installed at the lower front end of the air supply pipe 504, an exhaust port 506 installed at the top of the deaerator 505, and a sewage discharge assembly 5 also includes a drain pipe 507, a water pump 508 and a sewage treatment device 509. The lower right end of the continuous discharge expansion container 503 is connected to the drain pipe 507, the right end of the drain pipe 507 is equipped with a water pump 508, and the right end of the water pump 508 is equipped with a sewage treatment device 509.

[0025] The specific operation is as follows: When in use, after opening the drain valve 4, the sewage in the boiler drum 1 is discharged through the rear connecting pipe 302. The sewage discharge flow rate is adjusted through the continuous discharge regulating valve 2. The liquid pump 501 is started, so that the liquid pump 501 draws out the sewage through the front connecting pipe 303 and transports it to the continuous discharge expansion tank 503 through the liquid delivery pipe 502. Secondary steam and waste hot water are separated through the continuous discharge expansion tank 503. The steam enters the deaerator 505 from the gas delivery pipe 504. The deaerator 505 removes oxygen from the water, improves heating efficiency, and reduces heat consumption. At the same time, the water pump 508 is started so that the waste hot water is pumped through the liquid pump 501 to the sewage treatment device 509 for preliminary treatment before being discharged.

[0026] In summary, as Figures 1 to 3As shown, in use, the anti-drip boiler continuous blowdown device first connects the inlet and outlet of the continuous blowdown regulating valve 2 to the rear connecting pipe 302 and the front connecting pipe 303 respectively via the threaded connection of the mounting bolts 304 and the connecting flange 301. At the connection points between the connecting flange 301 and the rear and front connecting pipes 302 and 303, the first sealing ring 305 is secured. The second sealing ring 306 is then secured at the corresponding position of the first sealing ring 305, forming a protective structure at the connection point through the second sealing ring 306 and the first sealing ring 305. The second sealing ring 306 and the first sealing ring 305 are then tightened by the threaded connection of the fixing bolts 308. Simultaneously, the rubber... The sealing ring 307 further seals the connection. Then, after opening the drain valve 4, the sewage in the boiler drum 1 is discharged through the rear connecting pipe 302. The sewage flow rate is adjusted by the continuous discharge regulating valve 2, and the liquid pump 501 is started. The liquid pump 501 draws the sewage out through the front connecting pipe 303 and delivers it to the continuous discharge expansion tank 503 through the liquid delivery pipe 502. Secondary steam and waste hot water are separated through the continuous discharge expansion tank 503. The steam enters the deaerator 505 from the gas delivery pipe 504. The deaerator 505 removes oxygen from the water, improves heating efficiency, and reduces heat consumption. At the same time, the water pump 508 is started so that the waste hot water is pumped through the liquid pump 501 to the sewage treatment device 509 for preliminary treatment before being discharged.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A drip-proof continuous blowdown device for boilers, comprising a boiler drum (1) and a sealing assembly (3), characterized in that: A continuous flow regulating valve (2) is provided in front of the boiler drum (1). The sealing assembly (3) is provided on the surface of the continuous flow regulating valve (2). The sealing assembly (3) includes a connecting flange (301), a rear connecting pipe (302), a front connecting pipe (303), mounting bolts (304), a first sealing ring (305), a second sealing ring (306), a rubber sealing ring (307), and fixing bolts (308). The connecting flange (301) is provided on both sides of the lower end of the continuous flow regulating valve (2). The rear side of the lower end of the continuous flow regulating valve (2) is connected to the rear connecting pipe (302) through the connecting flange (301). The front side of the lower end of the continuous flow regulating valve (2) is connected to the front connecting pipe (303) through the connecting flange (301). The inner side of the connecting flange (301) is threaded with mounting bolts (304). Two sets of connecting flanges (301) are symmetrically arranged.

2. The anti-drip boiler continuous blowdown device according to claim 1, characterized in that, A first sealing ring (305) is provided on the right side of the outer side of the connecting flange (301), and a second sealing ring (306) is provided on the front side of the first sealing ring (305).

3. The anti-drip boiler continuous blowdown device according to claim 1, characterized in that, Both the first sealing ring (305) and the second sealing ring (306) are provided with rubber sealing rings (307) on their inner sides, and both the front and rear ends of the first sealing ring (305) and the second sealing ring (306) are threaded with fixing bolts (308).

4. The anti-drip boiler continuous blowdown device according to claim 1, characterized in that, A drain valve (4) is installed on the lower side of the boiler drum (1), and the lower end of the drain valve (4) is connected to the rear end of the rear connecting pipe (302).

5. A continuous boiler blowdown device for preventing dripping according to claim 1, characterized in that, The front end of the front connecting pipe (303) is provided with a sewage discharge assembly (5) for continuous sewage discharge, and the sewage discharge assembly (5) includes a liquid pump (501), a liquid delivery pipe (502), a continuous discharge expansion container (503), a gas delivery pipe (504), a deaerator (505) and an exhaust port (506), wherein the liquid pump (501) is located at the front end of the front connecting pipe (303).

6. A continuous boiler blowdown device for preventing dripping according to claim 5, characterized in that, The front end of the pump (501) is connected to an infusion pipe (502), and a continuous expansion container (503) is installed at the front end of the infusion pipe (502).

7. A continuous boiler blowdown device for preventing dripping according to claim 6, characterized in that, The top of the continuous expansion container (503) is equipped with a gas supply pipe (504), and a deaerator (505) is provided at the lower front end of the gas supply pipe (504). The top of the deaerator (505) is provided with an exhaust port (506).

8. A continuous boiler blowdown device for preventing dripping according to claim 5, characterized in that, The sewage discharge assembly (5) also includes a drain pipe (507), a water pump (508), and a sewage treatment device (509). The lower right end of the continuous discharge expansion container (503) is connected to the drain pipe (507), the right end of which is equipped with a water pump (508), and the right end of the water pump (508) is equipped with a sewage treatment device (509).

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