High-temperature-resistant regulating valve

Abstract

The utility model provides a high-temperature-resistant regulating valve. The high-temperature-resistant regulating valve comprises a valve body, a first screw hole, a first screw plug, a valve needle, a valve hole, a valve element, an external thread connecting cylinder, an oil inlet hole and a second screw plug. The valve body, the first screw plug, the valve needle, the second screw plug and other key components are made of high-temperature-resistant materials, the high-temperature-resistant capacity of the whole regulating valve is effectively improved, the regulating valve can stably operate under the high-temperature working condition, and the regulating valve is suitable for the high-temperature environment such as a fuel gasification furnace; heat generated in the working process of the regulating valve can be quickly dissipated, the temperature of the valve body is reduced, and the high-temperature resistance and stability of the regulating valve are further improved; by adjusting the rotation degree of the valve needle, the opening degree of the channel between the oil inlet hole and the valve hole can be accurately controlled, so that the fluid flow is accurately adjusted, the adjusting mode is simple and effective, the adjusting range is wide, and the flow control requirements under different working conditions can be met.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, and in particular to a high-temperature resistant regulating valve. Background Technology

[0002] Control valves, as core components in industrial automation process control, are playing an increasingly important role in various industrial sectors, especially in fuel oil vaporization systems. With continuous technological advancements and growing industrial demands, the performance of control valves is constantly being optimized, and their application scope is further expanding. In fuel oil vaporization furnaces, control valves are primarily used to precisely control the flow rate of high-temperature gas generated after fuel oil vaporization at high temperatures, and to achieve precise opening and closing control of the gas passage before the fuel injector. This function is crucial for ensuring the stable operation of the vaporization furnace, optimizing energy utilization efficiency, and protecting downstream equipment from the impact of high-temperature, high-pressure gases.

[0003] Under high-temperature conditions, traditional control valves often suffer from problems such as leakage and reduced valve core adjustment accuracy due to insufficient heat resistance of materials, poor heat dissipation of the valve body, or unreasonable sealing structure. Therefore, a high-temperature resistant control valve is proposed. Utility Model Content

[0004] In view of this, the present invention aims to provide a high-temperature resistant regulating valve to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0005] The technical solution of this utility model embodiment is implemented as follows: a high-temperature resistant regulating valve includes a main component, the main component including a valve body, a first screw hole, a first screw plug, a valve needle, a valve hole, a valve core, an external threaded connecting cylinder, an oil inlet hole, and a second screw plug;

[0006] The valve body has a first threaded hole on its front surface. A first plug is threaded to the inner wall of the first threaded hole. A valve needle is threaded to the rear part of the inner wall of the first plug. A valve hole is formed at the center of the inner rear wall of the first threaded hole. The rear part of the outer wall of the valve needle is fitted to the inner wall of the valve hole. A valve core is provided on the rear surface of the valve needle. An externally threaded connecting cylinder is welded to the outer side of the rear surface of the valve body near the valve hole. The outer side of the valve core is fitted to the front part of the inner wall of the externally threaded connecting cylinder. An oil inlet hole is formed on the rear part of the outer wall of the valve body. The bottom of the oil inlet hole is connected to the rear part of the inner wall of the valve hole. The bottom of the oil inlet hole is fitted to the rear end of the outer wall of the valve needle. A second plug is threaded to the front part of the inner wall of the first plug. The front part of the outer wall of the valve needle near the first plug is fitted to the inner wall of the second plug.

[0007] More preferably, a plurality of heat dissipation fins are provided in the middle of the outer side wall of the valve body.

[0008] More preferably, a first sealing ring is fitted to the outer side of the inner rear wall of the first screw hole near the valve hole, the inner side wall of the first sealing ring is fitted to the front part of the outer side wall of the valve needle near the valve hole, and the front surface of the first sealing ring is fitted to the outer side of the rear surface of the first screw plug.

[0009] More preferably, a second sealing ring is provided in the middle of the inner wall of the first screw plug, the inner wall of the second sealing ring is attached to the outer wall of the valve needle near the rear of the second screw plug, and the front surface of the second sealing ring is attached to the outer side of the rear surface of the second screw plug.

[0010] More preferably, a third screw plug is welded to the inner wall of the oil inlet hole, and an oil inlet pipe connector is threaded to the upper part of the outer wall of the third screw plug.

[0011] More preferably, the outer side wall of the externally threaded connecting cylinder is threaded with an oil outlet pipe connector.

[0012] More preferably, an oil inlet hole is provided at the center of the upper surface of the third screw plug, and an oil inlet pipe sealing head is provided on the outer side of the upper surface of the third screw plug near the oil inlet hole.

[0013] More preferably, an oil outlet sealing head is provided on the outer side of the center of the rear surface of the external threaded connecting cylinder.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. This utility model effectively improves the high-temperature resistance of the entire regulating valve by using high-temperature resistant materials to manufacture key components such as the valve body, first screw plug, valve needle, valve core, external threaded connecting cylinder, and second screw plug, enabling it to operate stably under high-temperature conditions. It is suitable for high-temperature environments such as fuel gasification furnaces. At the same time, multiple heat dissipation fins set in the middle of the outer wall of the valve body can quickly dissipate the heat generated by the regulating valve during operation, reduce the valve body temperature, and further improve the high-temperature resistance and stability of the regulating valve.

[0016] 2. This utility model can precisely control the opening degree of the channel between the oil inlet and the valve hole by adjusting the rotation degree of the valve needle, thereby achieving precise regulation of fluid flow. This regulation method is simple and effective, and has a wide adjustment range, which can meet the flow control requirements under different working conditions. At the same time, the sealing performance is increased by the first sealing ring and the second sealing ring, thereby effectively preventing fluid leakage during the regulation process and improving the sealing performance and reliability of the regulating valve.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural view of the present invention.

[0020] Figure 2 This is another structural view of the present invention;

[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 This is a structural diagram of the first and second sealing rings of this utility model.

[0023] Reference numerals: 1. Main component; 11. Valve body; 12. First screw hole; 13. First screw plug; 14. Valve needle; 15. Valve hole; 16. Valve core; 17. External threaded connecting sleeve; 18. Oil inlet hole; 19. Second screw plug; 20. Heat sink; 21. First sealing ring; 22. Second sealing ring; 23. Third screw plug; 24. Oil inlet pipe connector; 25. Oil outlet pipe connector; 26. Oil delivery hole; 27. Oil inlet pipe sealing head; 28. Oil outlet pipe sealing head. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-4 As shown, this utility model embodiment provides a high-temperature resistant regulating valve, including a main body component 1. The main body component 1 includes a valve body 11, a first screw hole 12, a first screw plug 13, a valve needle 14, a valve hole 15, a valve core 16, an external threaded connecting cylinder 17, an oil inlet hole 18, and a second screw plug 19.

[0027] A first threaded hole 12 is provided on the front surface of the valve body 11. A first threaded plug 13 is threadedly connected to the inner wall of the first threaded hole 12. A valve needle 14 is threadedly connected to the rear part of the inner wall of the first threaded plug 13. A valve hole 15 is provided at the center of the inner rear wall of the first threaded hole 12. The rear part of the outer wall of the valve needle 14 is fitted to the inner wall of the valve hole 15. A valve core 16 is provided on the rear surface of the valve needle 14. An externally threaded connecting sleeve 17 is welded to the outer side of the rear surface of the valve body 11 near the valve hole 15. The outer wall of the valve core 16 is fitted to the front part of the inner wall of the externally threaded connecting sleeve 17. An oil inlet hole 18 is provided on the rear part of the outer side wall of valve 15. The bottom of the oil inlet hole 18 is connected to the rear part of the inner side wall of valve hole 15. The bottom of the oil inlet hole 18 is attached to the rear end of the outer side wall of valve needle 14. The front part of the inner side wall of the first screw plug 13 is threadedly connected to the second screw plug 19. The outer side wall of valve needle 14 is attached to the inner side wall of the second screw plug 19 near the front part of the first screw plug 13. The valve body 11, the first screw plug 13, the valve needle 14, the valve core 16, the external threaded connecting sleeve 17 and the second screw plug 19 are all made of high temperature resistant materials, thereby increasing the high temperature resistance of the regulating valve.

[0028] In one embodiment, specifically: a plurality of heat sinks 20 are provided in the middle of the outer side wall of the valve body 11, so as to quickly dissipate the heat generated by the valve body 11 during operation, thereby increasing the high temperature resistance of the regulating valve.

[0029] In one embodiment, specifically: a first sealing ring 21 is attached to the outer side of the inner rear wall of the first screw hole 12 near the valve hole 15; the inner side wall of the first sealing ring 21 is attached to the outer side wall of the valve needle 14 near the front of the valve hole 15; and the front surface of the first sealing ring 21 is attached to the outer side of the rear surface of the first screw plug 13. The first sealing ring 21 is made of a high-temperature resistant material. The first sealing ring 21 seals the connection between the valve body 11, the first screw plug 13, and the valve needle 14, thereby preventing fuel leakage.

[0030] In one embodiment, specifically: a second sealing ring 22 is provided in the middle of the inner wall of the first screw plug 13. The inner wall of the second sealing ring 22 is attached to the outer wall of the valve needle 14 near the rear of the second screw plug 19. The front surface of the second sealing ring 22 is attached to the outer side of the rear surface of the second screw plug 19. The second sealing ring 22 is made of high temperature resistant material. The second sealing ring 22 seals the connection between the first screw plug 13, the valve needle 14, and the second screw plug 19, thereby further increasing the sealing performance and preventing fuel leakage.

[0031] In one embodiment, specifically: a third screw plug 23 is welded to the inner wall of the oil inlet hole 18, and an oil inlet pipe connector 24 is threaded to the upper part of the outer wall of the third screw plug 23, so that the oil inlet pipe can be easily connected through the oil inlet pipe connector 24.

[0032] In one embodiment, specifically: the rear part of the outer side wall of the external threaded connecting cylinder 17 is threaded with an oil outlet pipe connector 25, which facilitates the connection of an oil outlet pipe.

[0033] In one embodiment, specifically: an oil inlet hole 26 is provided at the center of the upper surface of the third screw plug 23, and an oil inlet pipe sealing head 27 is provided on the outer side of the upper surface of the third screw plug 23 near the oil inlet hole 26. The oil inlet pipe sealing head 27 seals the connection of the oil inlet pipe connected through the oil inlet pipe connector 24, thereby preventing fuel leakage.

[0034] In one embodiment, specifically: an oil outlet pipe sealing head 28 is provided on the outer side of the center of the rear surface of the external threaded connecting cylinder 17, and the oil outlet pipe sealing head 28 seals the connection of the oil outlet pipe connected through the oil outlet pipe joint 25, thereby preventing fuel leakage.

[0035] When this utility model is in operation: When the high-temperature regulating valve is in the closed state, the rear end of the outer wall of the valve needle 14 is tightly fitted to the bottom of the oil inlet hole 18, completely blocking the oil inlet hole 18 and preventing fluid from passing through. At the same time, the valve core 16 at the rear end of the valve needle 14 is also tightly fitted to the front part of the inner side wall of the external threaded connecting cylinder 17, further enhancing the sealing performance in the closed state. When the high-temperature regulating valve is opened and adjusted, rotating the valve needle 14 causes it to move due to the threaded connection between the valve needle 14 and the rear part of the inner side wall of the first screw plug 13. The rear end of the outer wall of the valve needle 14 gradually moves away from the bottom of the oil inlet hole 18, gradually opening the channel between the oil inlet hole 18 and the valve hole 15, allowing fluid to flow into the valve hole 15. Simultaneously, the valve core 16 also gradually moves away from the bottom of the valve needle 14. The front part of the inner wall of the externally threaded connecting sleeve 17 allows the fluid to continue flowing to the oil outlet pipe joint 25. By further adjusting the degree of rotation of the valve needle 14, the movement distance of the valve needle 14 can be controlled, thereby precisely adjusting the opening degree of the channel between the oil inlet hole 18 and the valve hole 15, and thus controlling the flow rate of the fluid. The flow rate is directly proportional to the opening degree of the valve needle 14, that is, the larger the valve needle 14 is opened, the greater the fluid flow rate; conversely, the smaller the flow rate. At the same time, the sealing effect is enhanced by the setting of the first sealing ring 21 and the second sealing ring 22 to prevent fluid leakage during the adjustment process. In addition, the heat sink 20 is distributed in the middle of the outer wall of the valve body 11, which helps to quickly dissipate the heat generated during valve operation and improve the high temperature resistance of the valve.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-temperature resistant regulating valve, characterized in that: It includes a main body assembly (1), which includes a valve body (11), a first screw hole (12), a first screw plug (13), a valve needle (14), a valve hole (15), a valve core (16), an external threaded connecting cylinder (17), an oil inlet hole (18), and a second screw plug (19); The valve body (11) has a first screw hole (12) on its front surface. A first screw plug (13) is threaded onto the inner wall of the first screw hole (12). A valve needle (14) is threaded onto the rear part of the inner wall of the first screw plug (13). A valve hole (15) is provided at the center of the inner rear wall of the first screw hole (12). The rear part of the outer wall of the valve needle (14) is fitted to the inner wall of the valve hole (15). A valve core (16) is provided on the rear surface of the valve needle (14). An externally threaded connecting sleeve (16) is welded to the outer side of the rear surface of the valve body (11) near the valve hole (15). 7) The outer side wall of the valve core (16) is attached to the front part of the inner side wall of the external threaded connecting cylinder (17). The rear part of the outer side wall of the valve body (11) is provided with an oil inlet hole (18). The bottom of the oil inlet hole (18) is connected to the rear part of the inner side wall of the valve hole (15). The bottom of the oil inlet hole (18) is attached to the rear end of the outer side wall of the valve needle (14). The front part of the inner side wall of the first screw plug (13) is threaded with a second screw plug (19). The front part of the outer side wall of the valve needle (14) near the first screw plug (13) is attached to the inner side wall of the second screw plug (19).

2. The high-temperature resistant regulating valve according to claim 1, characterized in that: The valve body (11) has multiple heat sinks (20) in the middle of its outer side wall.

3. The high-temperature resistant regulating valve according to claim 1, characterized in that: The inner rear wall of the first screw hole (12) is fitted with a first sealing ring (21) near the outer side of the valve hole (15). The inner side wall of the first sealing ring (21) is fitted with the outer side wall of the valve needle (14) near the front part of the valve hole (15). The front surface of the first sealing ring (21) is fitted with the outer side of the rear surface of the first screw plug (13).

4. The high-temperature resistant regulating valve according to claim 1, characterized in that: A second sealing ring (22) is provided in the middle of the inner wall of the first screw plug (13). The inner wall of the second sealing ring (22) is attached to the outer wall of the valve needle (14) near the rear of the second screw plug (19). The front surface of the second sealing ring (22) is attached to the outer side of the rear surface of the second screw plug (19).

5. The high-temperature resistant regulating valve according to claim 1, characterized in that: The inner wall of the oil inlet hole (18) is welded with a third screw plug (23), and the upper part of the outer wall of the third screw plug (23) is threaded with an oil inlet pipe connector (24).

6. The high-temperature resistant regulating valve according to claim 1, characterized in that: The outer side wall of the external threaded connecting cylinder (17) is threaded with an oil outlet pipe joint (25).

7. The high-temperature resistant regulating valve according to claim 5, characterized in that: An oil inlet hole (26) is provided at the center of the upper surface of the third screw plug (23), and an oil inlet pipe sealing head (27) is provided on the outer side of the upper surface of the third screw plug (23) near the oil inlet hole (26).

8. The high-temperature resistant regulating valve according to claim 6, characterized in that: An oil outlet sealing head (28) is provided on the outer side of the center of the rear surface of the external threaded connecting cylinder (17).

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