Boiler water discharge treatment device
By setting a pressure equalization hole in the sewage pipe of the boiler water discharge treatment device, mixing the boiler water and condensate water to cool down, the problems of water hitting and pipeline vibration during the boiler water discharge process are solved, and the equipment operation is stable Extended performance and service life.
Patent Information
- Application Number
- CN202420507956.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-15
AI Technical Summary
During the boiler and furnace water discharge process, water strikes and pipeline vibrations often occur, resulting in unstable equipment operation.
A boiler and furnace water discharge treatment device is designed. By setting multiple pressure equalization holes in the boiler sewage pipe, the boiler and furnace water are transported into the steam condensation tank, and mixed with the condensate water to cool down, thereby avoiding the water generated by the inability to release heat quickly. hit.
By increasing the contact volume between boiler and furnace water and condensate water, it effectively dissipates heat, avoids water hitting and pipeline vibration, and extends the service life of the equipment.
Smart Images
Figure CN222503796U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smelting equipment, in particular to a boiler water discharge treatment device. Background Art
[0002] During the blowing process of the converter, a fierce oxidation reaction will occur in the converter, causing a large amount of high-temperature, high-concentration carbon monoxide flue gas to be generated in the furnace. The flue gas escaping from the converter mouth is about 1450°C. Usually, the high-temperature flue gas enters the converter flue gas recovery system from the skirt cover. Specifically, the flue gas enters the gasification cooling waste heat boiler system, and heats the water into high-temperature, high-pressure steam through heat transfer, which increases the pressure of the boiler system. The steam generated by the boiler system is sent to the converter heat accumulator or energy pipeline network through the steam pipeline.
[0003] In order to fully recycle and utilize the steam generated by the converter vaporization cooling, the steam is usually recovered and processed in a smoke hood, and the water circulation system in the smoke hood has strict requirements on water quality. For example, the pH value, phosphate, total alkalinity and other indicators must be controlled within the qualified range. In order to ensure that the boiler water quality is qualified, the boiler water will be discharged from time to time to ensure the stability of the boiler water quality. When the boiler water needs to be discharged, the boiler water goes along the sewage pipe to the sewage expansion tank for steam-water separation, and then is discharged to the steam total cooling condensation pool after steam-water separation, and finally overflows through the cooling pool to the energy and environmental main pipe network.
[0004] The boiler water is basically saturated steam, and the water temperature in the high-pressure steam pipe is relatively high, usually 200℃ to 250℃. At the same time, the on-site sewage pipe is connected to the sewage pool and directly drains into the condensation pool. Due to the high temperature of the boiler water and the large amount of drainage, every time during the drainage process, there will be water hammering sounds in the pool, and the pipes in the pool will vibrate continuously. Utility Model Content
[0005] The problem solved by the utility model is how to avoid water hammering sound during drainage.
[0006] In order to solve the above-mentioned problems, the utility model provides a boiler water discharge treatment device, including a steam condensation tank and a boiler drain pipe for conveying boiler water to the steam condensation tank, at least a portion of the boiler drain pipe extends to the bottom of the steam condensation tank, and the pipe section of the boiler drain pipe located in the steam condensation tank is provided with a plurality of pressure equalizing holes, and at least a portion of the boiler water is discharged into the steam condensation tank through the plurality of pressure equalizing holes.
[0007] Optionally, the boiler sewage pipe is open or sealed at the pipe opening at one end in the steam condensation tank.
[0008] Optionally, when the boiler drain pipe orifice is sealed, the boiler water input by the boiler drain pipe is discharged into the condensed water in the steam condensation pool through the pressure equalizing hole; when the boiler drain pipe orifice is open, the boiler water input by the boiler drain pipe is discharged into the condensed water in the steam condensation pool through the pressure equalizing hole and the boiler drain pipe orifice.
[0009] Optionally, a cover is provided on the top of the steam condensation pool, and the cover is used to make the steam condensation pool closed, and the steam condensation pool and the cover are closed to form a cavity, and the cavity is located between the condensed water in the steam condensation pool and the cover.
[0010] Optionally, a supporting component is provided on the boiler drain pipe, one end of the boiler drain pipe is passed through the cover body and extends into the condensed water in the steam condensation pool, and the boiler drain pipe is supported on the cover body by the supporting component.
[0011] Optionally, a spray device is provided in the steam condensation pool, and the spray device includes a water supply pipe, at least a portion of which passes through the cover body and extends into the cavity, and a plurality of spray heads are provided on the portion of the water supply pipe located in the cavity, and the plurality of spray heads are distributed along the length direction of the water supply pipe.
[0012] Optionally, the spraying directions of the multiple spray heads are all toward the condensed water in the steam condensation pool, and there is a height difference between the spray heads and the liquid level of the condensed water in the steam condensation pool.
[0013] Optionally, one end of the water supply pipe is used to be connected to an output end of an external water supply device.
[0014] Optionally, a water pool drain pipe is provided on one side of the steam condensation pool, and the connection between the water pool drain pipe and the steam condensation pool is at the same height as the liquid level of the condensed water in the steam condensation pool.
[0015] Optionally, a steam exhaust pipe is provided on the cover body, and the steam exhaust pipe is used to exhaust the steam in the cavity.
[0016] Compared with the prior art, the boiler water discharge treatment device of the utility model has the following beneficial effects:
[0017] Boiler water can be transported to the steam condensation pool through the boiler blowdown pipe, and mixed with the condensed water in the steam condensation pool to cool down. Normally, boiler water is saturated steam, and water hammer is caused by the rapid release of heat by hot water when it meets cold water. At this time, the thermal energy is converted into kinetic energy. When the heat cannot be released, water hammer is formed. By opening a plurality of holes in the portion of the boiler blowdown pipe immersed in the condensed water, the boiler water can be discharged into the steam condensation pool through the plurality of holes and mixed with the condensed water, thereby increasing the contact volume between the boiler water and the condensed water, so that the boiler water can effectively dissipate the heat, thereby avoiding water hammer caused by the inability to quickly release the heat. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a boiler water discharge treatment device in an embodiment of the utility model.
[0019] Description of reference numerals:
[0020] 1. Steam condensation tank; 2. Cover; 3. Boiler drain pipe; 31. Pressure equalizing hole; 4. Water supply pipe; 41. Sprinkler head; 5. Steam exhaust pipe; 6. Water tank drain pipe. DETAILED DESCRIPTION
[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.
[0025] like Figure 1 As shown, an embodiment of the utility model provides a boiler water discharge treatment device, including a steam condensation tank 1 and a boiler drain pipe 3 for conveying boiler water to the steam condensation tank 1, wherein at least a portion of the boiler drain pipe 3 extends to the bottom of the steam condensation tank 1, and a pipe section of the boiler drain pipe 3 located in the steam condensation tank 1 is provided with a plurality of pressure equalizing holes 31, and at least a portion of the boiler water is discharged into the steam condensation tank 1 through the plurality of pressure equalizing holes 31.
[0026] It should be noted that the boiler water is saturated steam, and the boiler water is usually 200°C to 250°C. When the boiler water is discharged directly into the steam condensation pool 1 through the boiler drain pipe 3, the boiler water releases heat rapidly. At this time, the thermal energy is converted into kinetic energy, and a large number of bubbles are formed on the surface of the steam condensation pool 1. When the heat cannot be released, water hammer is formed.
[0027] In this embodiment, the discharge direction of boiler water is as follows: Figure 1 In the direction indicated by the arrow in the boiler blowdown pipe 3, specifically, by setting a plurality of equalizing holes 31 in the boiler blowdown pipe 3, during the boiler water discharge process, the boiler water will be continuously discharged through the equalizing holes 31, thereby playing a role of buffering and pressure relief. At the same time, by setting a plurality of equalizing holes 31, the boiler water can be quickly mixed with the condensed water in the steam condensation pool 1, effectively absorbing the heat released by the boiler water, and avoiding water hammer.
[0028] In an optional embodiment, the diameter of the pressure equalizing holes 31 is 1 cm, and the spacing between the pressure equalizing holes 31 is 1 cm, so that the pressure equalizing holes 31 are evenly distributed on the boiler sewage pipe 3. The boiler sewage pipe 3 is cylindrical and has a certain height, so that the boiler water can quickly merge into the condensed water of different heights and diffuse to the surrounding side when discharged, so that the boiler water is discharged more evenly, and the heat of the boiler water is further effectively released.
[0029] Optionally, the boiler drain pipe 3 is open or sealed at the pipe mouth at one end in the steam condensation pool 1. Specifically, the pipe mouth of the boiler drain pipe 3 is opened or sealed according to the boiler water flow rate. For example, when the flow rate of the boiler water can be discharged into the condensed water by the pressure equalizing hole 31 and can effectively absorb the heat of the boiler water, the bottom of the boiler drain pipe 3 can be sealed, and the boiler water is discharged through the pressure equalizing hole 31 to make the heat distribution more uniform. Similarly, when the flow rate of the boiler water is discharged into the condensed water by multiple pressure equalizing holes 31 but cannot effectively absorb the heat of the boiler water, the bottom of the boiler drain pipe 3 can be open, which speeds up the discharge speed of the boiler drain pipe 3, reduces the discharge pressure of the pressure equalizing hole 31, and makes the boiler water flow to the deeper condensed water, which can effectively release the heat of the boiler water.
[0030] Specifically, when the pipe mouth of the boiler drain pipe 3 is sealed, the boiler water input by the boiler drain pipe 3 is discharged into the condensed water in the steam condensation pool 1 through the pressure equalizing hole 31; when the pipe mouth of the boiler drain pipe 3 is open, the boiler water input by the boiler drain pipe 3 is discharged into the condensed water in the steam condensation pool 1 through the pressure equalizing hole 31 and the pipe mouth of the boiler drain pipe 3.
[0031] The two different discharge methods can be customized according to actual needs, so that the boiler water can be mixed with the condensed water through a plurality of evenly distributed pressure equalizing holes 31 or the outlet of the boiler sewage pipe 3 to achieve the effect of heat exchange, enable the boiler water to quickly release heat, avoid water hammer caused by insufficient heat release, and extend the service life of the pipeline.
[0032] See also Figure 1 Furthermore, a cover 2 is provided on the top of the steam condensation pool 1, and the cover 2 is used to make the steam condensation pool 1 closed, and the steam condensation pool 1 and the cover 2 are closed to form a cavity, and the cavity is located between the condensed water in the steam condensation pool 1 and the cover 2.
[0033] Since a large amount of steam will be generated when the high-temperature boiler water mixes with the condensed water in the steam condensation pool 1, in order to prevent the steam from directly overflowing, the cover body 2 can be provided to seal the steam in the cavity to prevent the steam from overflowing and polluting the environment.
[0034] Optionally, a support component is provided on the boiler blowdown pipe 3, one end of the boiler blowdown pipe 3 is passed through the cover body 2 and extends into the condensed water in the steam condensation pool 1, and the boiler blowdown pipe 3 is supported on the cover body 2 by the support component. A through hole is provided on the surface of the cover body 2 for the boiler blowdown pipe 3 to pass through, so that the boiler blowdown pipe 3 can pass through the through hole and extend into the condensed water. At the same time, in order to maintain the support state of the boiler blowdown pipe 3, a support component is provided on the boiler blowdown pipe 3 so that the support component can be overlapped on the cover body 2, so that the boiler blowdown pipe 3 can remain inserted into the condensed water; it should be further explained that the support component can be selected from a bracket, an annular flange, etc. In this embodiment, the support component is a bracket, which is evenly fixed on the outer surface of the boiler blowdown pipe 3, so as to support the boiler blowdown pipe 3.
[0035] Furthermore, a spray device is provided in the steam condensation pool 1, and the spray device includes a water supply pipe 4, at least a portion of which passes through the cover body 2 and extends into the cavity, and a plurality of spray heads 41 are provided on the portion of the water supply pipe 4 located in the cavity, and the plurality of spray heads 41 are distributed along the length direction of the water supply pipe 4.
[0036] A large amount of steam generated by the mixing of high-temperature boiler water and condensed water in the steam condensation pool 1 will gather in the cavity. It should be noted that one end of the water supply pipe 4 is used to connect to the output end of the external water supply device. Figure 1 As shown by the arrow in the water supply pipe 4 shown, water is input into the water supply pipe from an external water supply device, and the water flows to the spray head 41 through the water supply pipe 4 and is sprayed out through the spray head 41.
[0037] Water is transported through the water supply pipe 4 and sprayed out through the spray head 41, so that the steam can continue to release heat and liquefy to form water droplets and return to the condensed water. Furthermore, when there are particulate impurities in the steam, the water sprayed from the spray head 41 can increase the adhesion mass of the particles and cause the steam to settle in the condensed water, thereby preventing the steam from directly diffusing to the outside and causing environmental pollution.
[0038] It should be noted that the spraying direction of the multiple spray heads 41 is toward the condensed water in the steam condensation pool 1, and there is a height difference between the spray head 41 and the condensed water level in the steam condensation pool 1. When the spray head 41 sprays, since the steam is distributed in the cavity, by setting the height difference between the spray head 41 and the condensed water level in the steam condensation pool 1, the sprayed water has a falling process in the cavity, and is fully in contact with the steam through the falling process, so that the steam can release a large amount of heat or settle into the condensed water to achieve steam elimination; preferably, the spray head 41 can use a mist nozzle, and the mist water sprayed by it can fully contact with the steam, so that the steam can quickly release heat and achieve the effect of eliminating the steam.
[0039] Furthermore, a water tank drain pipe 6 is provided on one side of the steam condensation tank 1, and the connection between the water tank drain pipe 6 and the steam condensation tank 1 is at the same height as the condensed water level in the steam condensation tank 1. Since boiler water is continuously transported to the condensed water in the steam condensation tank 1 through the boiler drain pipe 3, and at the same time, the water sprayed from the sprinkler head 41 will cause the condensed water level in the steam condensation tank 1 to continuously rise, in order to keep the condensed water level in the steam condensation tank 1 in a balanced state, water higher than the original condensed water level is discharged through the water tank drain pipe 6. It should be noted that when there is suspended dirt on the condensed water surface, it flows out as the condensed water level rises, causing the suspended dirt to flow out through the water tank drain pipe 6 along with the water flow. Specifically, the discharge direction of the water tank drain pipe 6 is as follows: Figure 1 As shown in the direction of the arrow in the pool sewage pipe 6 shown in FIG.
[0040] Specifically, the cover body 2 is provided with a steam exhaust pipe 5, and the steam exhaust pipe 5 is used to exhaust the steam in the cavity. It should be noted that the exhaust direction of the steam exhaust pipe 5 is as follows: Figure 1 The arrow in the steam exhaust pipe 5 is in the reverse direction. Specifically, when the spray device sprays the steam in the cavity, most of the steam will form droplets and flow into the condensed water, and a small part of the steam will be discharged through the steam exhaust pipe 5 after cooling, so that the air pressure in the steam condensation pool 1 can maintain a stable equilibrium state. The temperature of the steam after spraying is relatively low, and the discharge volume is relatively small, which will not cause pollution to the regional environment.
[0041] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A boiler water discharge treatment device, characterized in that: The invention comprises a steam condensation pool (1) and a boiler drain pipe (3) for conveying boiler water to the steam condensation pool (1); at least a portion of the boiler drain pipe (3) extends to the bottom of the steam condensation pool (1); a pipe section of the boiler drain pipe (3) located in the steam condensation pool (1) is provided with a plurality of pressure equalizing holes (31); at least a portion of the boiler water is discharged into the steam condensation pool (1) through the plurality of pressure equalizing holes (31).
2. The boiler water discharge treatment device according to claim 1, characterized in that: The boiler sewage pipe (3) is located at one end of the steam condensation tank (1) and is open or sealed.
3. The boiler water discharge treatment device according to claim 2, characterized in that: When the pipe mouth of the boiler drain pipe (3) is sealed, the boiler water input through the boiler drain pipe (3) is discharged into the condensed water in the steam condensation pool (1) through the pressure equalizing hole (31); when the pipe mouth of the boiler drain pipe (3) is open, the boiler water input through the boiler drain pipe (3) is discharged into the condensed water in the steam condensation pool (1) through the pressure equalizing hole (31) and the pipe mouth of the boiler drain pipe (3).
4. The boiler water discharge treatment device according to claim 3, characterized in that: A cover (2) is arranged on the top of the steam condensation pool (1), and the cover (2) is used to make the steam condensation pool (1) closed, and the steam condensation pool (1) and the cover (2) are closed to form a cavity, and the cavity is located between the condensed water in the steam condensation pool (1) and the cover (2).
5. The boiler water discharge treatment device according to claim 4, characterized in that: A supporting component is provided on the boiler sewage pipe (3); one end of the boiler sewage pipe (3) is passed through the cover body (2) and extends into the condensed water in the steam condensation pool (1); and the boiler sewage pipe (3) is supported on the cover body (2) by the supporting component.
6. The boiler water discharge treatment device according to claim 4, characterized in that: A spray device is provided in the steam condensation pool (1), and the spray device comprises a water supply pipe (4), at least a portion of the water supply pipe (4) is passed through the cover body (2) and extends into the cavity, and a plurality of spray heads (41) are provided at the portion of the water supply pipe (4) located in the cavity, and the plurality of spray heads (41) are distributed along the length direction of the water supply pipe (4).
7. The boiler water discharge treatment device according to claim 6, characterized in that: The spraying directions of the multiple spray heads (41) are all toward the condensed water in the steam condensation pool (1), and there is a height difference between the spray heads (41) and the liquid level of the condensed water in the steam condensation pool (1).
8. The boiler water discharge treatment device according to claim 6, characterized in that: One end of the water supply pipe (4) is used to be connected to the output end of an external water supply device.
9. The boiler water discharge treatment device according to any one of claims 1 to 8, characterized in that: A water pool drain pipe (6) is provided on one side of the steam condensation pool (1), and the connection between the water pool drain pipe (6) and the steam condensation pool (1) is at the same height as the condensed water level in the steam condensation pool (1).
10. The boiler water discharge treatment device according to claim 4, characterized in that: The cover body (2) is provided with a steam exhaust pipe (5), and the steam exhaust pipe (5) is used to exhaust the steam in the cavity.