Large water-cooling butterfly valve
By designing large water -cooled butterfly valves and using the combined structure of water -cooled shells and water -cooled gate, the problem of high quality, high cost, and poor cooling effect of traditional butterfly valves, and achieve the effect of reducing costs and improving the service life.
Patent Information
- Application Number
- CN202420951079.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-06
AI Technical Summary
Due to the large mass, high production and installation cost, and poor natural air-cooling cooling effect, the traditional high-temperature butterfly valves have reduced metal hardness, easy oxidation, and increased friction during high temperature states, and reduced service life.
A large water -cooled butterfly valve is designed, which uses a combined structure of water -cooled shell and water -cooled gate. Cold by cold water reducing the quality and cost of the butterfly valve and improving its cooling effect.
Through the design of the water -cooled butterfly valve, the cost requirements of the flue and cranes are reduced, the service life of the butterfly valve is improved, and the specifications and costs of the pushing rod structure are reduced.
Smart Images
Figure CN222416047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scrap steel preheating, in particular to a large water-cooled butterfly valve. Background Art
[0002] Traditional high-temperature resistant butterfly valves are made of special steel or internally fixed refractory materials, which makes them heavy. In order to withstand their weight, the flue wall thickness must be thickened, resulting in high manufacturing costs. During installation, a large-tonnage crane is required to lift the flue and butterfly valve, resulting in high installation costs. Due to the large mass of the butterfly valve, the push rod mechanism that drives it to open and close also needs to have a large power, resulting in high investment costs. In addition, the traditional butterfly valve has poor cooling effect through natural air cooling, resulting in it being in a high temperature state for a long time. Under high temperature conditions, the metal hardness decreases and it is easy to oxidize. At the same time, thermal expansion also leads to increased friction, which reduces its service life. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a large water-cooled butterfly valve, which solves the problems raised in the above-mentioned background technology.
[0005] (II) Technical solution
[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a large water-cooled butterfly valve, comprising a water-cooled outer shell, pipe connection flanges are arranged around the two sides of the water-cooled outer shell, a shell water-cooled water inlet pipe and a shell water-cooled water outlet pipe are installed below the water-cooled outer shell, a rotatable gate shaft passes through the middle position of the two sides of the water-cooled outer shell, a water-cooled gate is installed in the middle position of the gate shaft, a gate water-cooled water inlet rotary joint is installed at one end of the gate shaft, a gate water-cooled water outlet rotary joint is installed at the other end of the gate shaft, a gate pull plate is installed at one end of the gate shaft close to the gate water-cooled water inlet rotary joint, and a push rod structure for driving the gate pull plate to swing up and down is installed below the water-cooled outer shell.
[0007] Preferably, the push rod structure can be an electric push rod or a cylinder, the top of its telescopic rod is hinged to the gate pull plate, and its main body is also hinged to the water-cooled outer shell. When the push rod structure is working, it can drive the gate pull plate to swing 90°, and also drive the water-cooled gate to swing 90° to realize the opening and closing of the water-cooled butterfly valve.
[0008] Preferably, a closed cavity is provided inside the water-cooled outer shell, and the shell water-cooled water inlet pipe and the shell water-cooled water outlet pipe are both connected to the cavity. Cold water is poured into the water-cooled outer shell from the shell water-cooled water inlet pipe and then discharged from the shell water-cooled water outlet pipe after circulating once.
[0009] Preferably, the gate plate shaft is a hollow tube, and a closed cavity is provided inside the water-cooled gate plate. The interior of the gate plate shaft is connected to the cavity, and cold water is poured into the water-cooled gate plate from the gate plate water-cooled water inlet rotary joint, circulates once, and then is discharged from the gate plate water-cooled water outlet rotary joint.
[0010] Preferably, since the water-cooled gate plate is a hollow structure and thus light in weight, the push-pull force required to drive it to rotate is small, and thus the specifications of the push rod structure can be reduced to achieve cost reduction.
[0011] Preferably, the pipe connection flanges on both sides of the water-cooled butterfly valve are connected to the flue. Since the main components of the water-cooled butterfly valve are hollow structures and their mass is much smaller than that of traditional butterfly valves, the pressure on the flue can be reduced, thereby reducing the manufacturing cost of the flue and the installation cost.
[0012] Preferably, since the main components of the water-cooled butterfly valve are all water-cooled and thus have a good cooling effect, it is not easy to be damaged and has a long service life.
[0013] (III) Beneficial effects
[0014] The utility model provides a large water-cooled butterfly valve, which has the following beneficial effects:
[0015] 1. The large water-cooled butterfly valve has a small mass through the coordinated arrangement of the water-cooled outer shell and the water-cooled gate plate, so that the large water-cooled butterfly valve has the effect of reducing the flue manufacturing cost and the installation cost. Since the main components of the water-cooled butterfly valve, the water-cooled outer shell and the water-cooled gate plate, are hollow structures and their mass is much smaller than that of the traditional butterfly valve, the flue pressure can be reduced, thereby reducing the flue manufacturing cost. The tonnage requirement of the crane is also reduced during installation, thereby saving the installation cost.
[0016] 2. The large water-cooled butterfly valve, through the setting of the water-cooled gate plate, has the effect of reducing the requirements of the push rod structure and thus reducing costs. Since the water-cooled gate plate is a hollow structure and light in weight, the push-pull force required to drive its rotation is small, so the specifications of the push rod structure can also be reduced to achieve cost reduction.
[0017] 3. The large water-cooled butterfly valve has a good cooling effect and a long service life through the coordinated setting of the water-cooled outer shell and the water-cooled gate. Since the water-cooled outer shell and the water-cooled gate are both hollow structures and are cooled by circulating water, the cooling effect is good. The working condition of the metal at normal temperature is much better than that at high temperature, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the front view of the utility model;
[0019] Figure 2 It is a structural schematic diagram of the left view of the utility model.
[0020] In the figure: 1. Water-cooled outer shell; 2. Pipe connection flange; 3. Shell water-cooled water inlet pipe; 4. Shell water-cooled water outlet pipe; 5. Gate shaft; 6. Water-cooled gate; 7. Gate water-cooled water inlet swivel joint; 8. Gate water-cooled water outlet swivel joint; 9. Gate pull plate; 10. Push rod structure. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] See also Figure 1 to Figure 2The utility model provides a technical solution: a large water-cooled butterfly valve, including a water-cooled outer shell 1, the peripheries of the two sides of the water-cooled outer shell 1 are provided with pipe connection flanges 2, a shell water-cooled water inlet pipe 3 and a shell water-cooled water outlet pipe 4 are installed below the water-cooled outer shell 1, a closed cavity is provided inside the water-cooled outer shell 1, the shell water-cooled water inlet pipe 3 and the shell water-cooled water outlet pipe 4 are both connected to the cavity, cold water is poured into the water-cooled outer shell 1 from the shell water-cooled water inlet pipe 3 and then discharged from the shell water-cooled water outlet pipe 4 after circulating once, the water-cooled outer shell The middle position of both sides of 1 passes through the rotatable gate shaft 5, and the middle position of the gate shaft 5 is installed with a water-cooled gate 6. One end of the gate shaft 5 is installed with a gate water-cooled water inlet rotary joint 7, and the other end of the gate shaft 5 is installed with a gate water-cooled water outlet rotary joint 8. The gate shaft 5 is a hollow tube, and the water-cooled gate 6 is provided with a closed cavity inside. The inside of the gate shaft 5 is connected with the cavity. Cold water is poured into the water-cooled gate 6 from the gate water-cooled water inlet rotary joint 7 and then discharged from the gate water-cooled water outlet rotary joint 8 after circulating for a circle. A gate plate pull plate 9 is installed at one end of the rotating shaft 5 close to the gate water-cooled water inlet rotary joint 7. A push rod structure 10 for driving the gate plate pull plate 9 to swing up and down is installed below the water-cooled outer shell 1. The push rod structure 10 can be an electric push rod or an oil cylinder. The top of its telescopic rod is hinged to the gate plate pull plate 9, and its main body is also hinged to the water-cooled outer shell 1. When the push rod structure 10 is working, it can drive the gate plate pull plate 9 to swing 90°, and also drive the water-cooled gate plate 6 to swing 90° to realize the opening and closing of the water-cooled butterfly valve. Since the water-cooled gate plate 6 is a hollow structure, It is light in weight, so the push-pull force required to drive its rotation is small, so the specifications of the push rod structure 10 can also be reduced to reduce costs. The pipe connecting flanges 2 on both sides of the water-cooled butterfly valve are connected to the flue. Since the main components of the water-cooled butterfly valve are hollow structures and their weight is much smaller than that of traditional butterfly valves, the pressure on the flue can be reduced, thereby reducing the manufacturing cost of the flue and the installation cost. Since the main components of the water-cooled butterfly valve are water-cooled and have a good cooling effect, they are not easy to be damaged and have a long service life.
[0023] When in use, the water-cooled butterfly valve is connected to the flue through the pipe connection flanges 2 on both sides of the water-cooled outer shell 1. The push rod structure 10 controls the rotation angle of the water-cooled gate plate 6 to change the cross-sectional size of the flue airflow, thereby changing the efficiency of flue smoke exhaust. The temperature of the smoke is very high, so the butterfly valve needs to be cooled, otherwise it will be in a high temperature state for a long time. The hardness of the metal decreases and it is easy to oxidize under high temperature. At the same time, thermal expansion also causes increased friction, thereby reducing its service life. Since the main components of the butterfly valve, the water-cooled outer shell 1 and the water-cooled gate plate 6, are both hollow structures, they can be cooled by pouring circulating water into the hollow structure to reduce the temperature. Because the metal is The working condition at normal temperature is much better than that at high temperature, which can increase its service life. Since the mass of the hollow structure is much smaller than that of the traditional butterfly valve, the pressure on the flue can be reduced, thereby reducing the manufacturing cost of the flue. The tonnage requirement of the crane is also reduced during installation, thereby saving installation costs. The shell water-cooled water inlet pipe 3 and the gate water-cooled water inlet rotary joint 7 are both connected to the water outlet of the water pump through a pipeline. The water flow rate is controlled to cool it down to ensure that it can work under high temperature conditions. Because its interior is a water-cooled cavity, it can circulate water for reuse, is environmentally friendly, has low maintenance costs, and is light in weight. By reducing the weight of its internal rotating body, the operating resistance is reduced, thereby reducing its energy consumption and failure rate.
[0024] To sum up, the large water-cooled butterfly valve has a water-cooled outer shell 1 and a water-cooled gate plate 6 as its main components, which are hollow structures and thus have a mass far less than that of a traditional butterfly valve. Therefore, the pressure on the flue can be reduced, thereby reducing the manufacturing cost of the flue. During installation, the tonnage requirement of the crane is also reduced, thereby saving the installation cost. Since the water-cooled gate plate 6 is a hollow structure and thus has a light mass, the push-pull force required to drive its rotation is small, so the specifications of the push rod structure 10 can also be reduced to reduce costs. Since the water-cooled outer shell 1 and the water-cooled gate plate 6 are both hollow structures and are cooled by circulating water, the cooling effect is good, and the working condition of the metal at normal temperature is much better than that at high temperature, thereby increasing its service life.
[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A large water-cooled butterfly valve, comprising a water-cooled outer shell (1), characterized in that: The water-cooled outer shell (1) is provided with pipe connection flanges (2) around both sides thereof; a shell water-cooled water inlet pipe (3) and a shell water-cooled water outlet pipe (4) are installed below the water-cooled outer shell (1); a rotatable gate plate rotating shaft (5) passes through the middle position of both sides of the water-cooled outer shell (1); a water-cooled gate plate (6) is installed in the middle position of the gate plate rotating shaft (5); a gate plate water-cooled water inlet rotary joint (7) is installed at one end of the gate plate rotating shaft (5); a gate plate water-cooled water outlet rotary joint (8) is installed at the other end of the gate plate rotating shaft (5); a gate plate pull plate (9) is installed at one end of the gate plate rotating shaft (5) close to the gate plate water-cooled water inlet rotary joint (7); and a push rod structure (10) for driving the gate plate pull plate (9) to swing up and down is installed below the water-cooled outer shell (1).
2. The large water-cooled butterfly valve according to claim 1 is characterized in that: The push rod structure (10) is an electric push rod or an oil cylinder, the top of the telescopic rod of which is hinged to the gate plate pull plate (9), and the main body of which is also hinged to the water-cooled outer shell (1). When the push rod structure (10) is working, it can drive the gate plate pull plate (9) to swing 90 degrees, and also drive the water-cooled gate plate (6) to swing 90 degrees to realize the opening and closing of the water-cooled butterfly valve.
3. The large water-cooled butterfly valve according to claim 1 is characterized in that: A sealed cavity is provided inside the water-cooled outer shell (1), and the shell water-cooled water inlet pipe (3) and the shell water-cooled water outlet pipe (4) are both connected to the cavity. Cold water is poured into the water-cooled outer shell (1) from the shell water-cooled water inlet pipe (3), circulates once, and is then discharged from the shell water-cooled water outlet pipe (4).
4. The large water-cooled butterfly valve according to claim 1 is characterized in that: The gate plate rotating shaft (5) is a hollow tube, and a sealed cavity is arranged inside the water-cooled gate plate (6). The inside of the gate plate rotating shaft (5) is connected to the cavity. Cold water is poured into the water-cooled gate plate (6) from the gate plate water-cooled water inlet rotary joint (7), circulates once, and is discharged from the gate plate water-cooled water outlet rotary joint (8).