Improved three-way baffle valve for waste heat boiler

Abstract

The utility model relates to the technical field of three-way baffle valves, and discloses an improved three-way baffle valve for a waste heat boiler, which comprises a three-way valve body, two sides of the inner wall of the three-way valve body are fixedly connected with flow guide blocks, the inner side wall of the valve body is movably connected with a baffle rotating shaft through a bearing, and one end of the baffle rotating shaft is fixedly connected with a turntable. And a limiting pull rod is fixedly connected to the outer side wall of the rotating disc, a fixing frame is fixedly connected to the outer side wall of the three-way valve body, a servo motor is fixedly connected to the outer side wall of the fixing frame, and a one-way screw rod is fixedly connected to the output end of the servo motor. According to the improved three-way baffle valve for the waste heat boiler, through cooperative arrangement of the three-way valve body, the flow guide block, the baffle rotating shaft, the rotating disc, the limiting pull rod, the fixing frame, the servo motor, the one-way screw rod, the limiting moving block, the U-shaped limiting frame, the reset spring, the baffle and the flow guide sharp block, the effect of electrically and stably adjusting the three-way baffle valve for the waste heat boiler is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to three -way baffle valve technical field, concretely is a kind of improved three -way baffle valve for waste heat boiler. BACKGROUND

[0002] Three-way baffle valve is a kind of valve device with three interfaces, mainly used to control the flow direction and flow of fluid. Three-way baffle valve realizes the flow control of fluid by controlling the opening and closing of baffle. When the baffle is in fully closed state, fluid cannot pass through the valve body, and the sealing device can effectively prevent fluid leakage. By manually operating device to control the rotation of valve rod, the movement of baffle can be driven, so as to adjust the opening degree of fluid passage. In industrial production, three-way baffle valve is often used to realize the conversion of simple cycle and combined cycle of gas turbine between gas turbine and waste heat boiler.

[0003] The existing three-way baffle valve for waste heat boiler mostly uses electric push rod to adjust and control baffle by reciprocating extension and retraction, and the external structure of electric push rod is more, and it is easy to knock and damage when extending out of three-way valve body, and the adjustment stability is poor, therefore, the utility model provides an improved three-way baffle valve for waste heat boiler. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides an improved three-way baffle valve for waste heat boiler, which solves the problems raised in the above background technology.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: an improved three-way baffle valve for waste heat boiler, comprising a three-way valve body, the inner wall of the three-way valve body is fixedly connected with a flow guide block on both sides, the inner side wall of the valve body is movably connected with a baffle rotating shaft through a bearing, one end of the baffle rotating shaft is fixedly connected with a rotating disc, the outer side wall of the rotating disc is fixedly connected with a limiting pull rod, the outer side wall of the three-way valve body is fixedly connected with a fixing frame, the outer side wall of the fixing frame is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a one-way screw rod, the surface of the one-way screw rod is threadedly connected with a limiting moving block, the bottom of the limiting moving block is fixedly connected with a U-shaped limiting frame, the middle part of the U-shaped limiting frame at the bottom of the limiting moving block is fixedly connected with a return spring, the top of the baffle rotating shaft is fixedly connected with a baffle, the surface of the baffle rotating shaft is fixedly connected with a high-temperature-resistant silica gel gasket, the bottom of the baffle rotating shaft is fixedly connected with a limiting sliding block, a limiting sliding groove is formed below the three-way valve body, the top of the baffle is fixedly connected with a flow guide sharp block.

[0008] Preferably, the bottom of the reset spring is fixedly connected with a limiting pull rod, and the inner wall of the U-shaped limiting frame is movably connected with the limiting pull rod.

[0009] Preferably, the limiting sliding groove is slidably connected with the limiting sliding block.

[0010] Preferably, the servo motor is externally connected with a controller.

[0011] Preferably, the left and right sides of the baffle are fixedly connected with stable clamping blocks.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the improved three-way baffle valve for a waste heat boiler has the following beneficial effects:

[0014] The improved three-way baffle valve for a waste heat boiler is provided with a three-way valve body, a flow guide block, a baffle shaft, a rotating disc, a limiting pull rod, a fixing frame, a servo motor, a one-way screw rod, a limiting moving block, a U-shaped limiting frame, a reset spring, a baffle and a flow guide sharp block. When in use, the servo motor is externally connected with a power supply to drive the one-way screw rod to rotate leftward and rightward, so that the limiting moving block drives the U-shaped limiting frame and the limiting pull rod to move leftward and rightward on the surface of the one-way screw rod to a suitable position, so as to drive the rotating disc, the baffle shaft, the baffle and the flow guide sharp block to rotate leftward and rightward to adjust the gas flow direction in the three-way valve body which is communicated with the waste heat boiler. The existing electric three-way baffle valve mostly uses an electric push rod to reciprocatingly extend and retract to adjust the baffle for control. The electric push rod has a relatively large external structure, and is easy to be damaged by knocking against the three-way valve body. The improved three-way baffle valve for a waste heat boiler is designed in the utility model, and is electrically controlled, so that it is not easy to be damaged by knocking. The reset spring and the U-shaped limiting frame are stably limited, compressed and supported during the rotating and shifting of the limiting pull rod, so that the function of electrically and stably adjusting the three-way baffle valve for the waste heat boiler is achieved. The high-temperature-resistant silica gel sealing pad, the limiting sliding block, the limiting sliding groove and the stable clamping block are cooperatively arranged, so that the function of limiting and supporting the baffle of the improved three-way baffle valve for a waste heat boiler during the turning and adjusting is achieved, and the sealing property of the three-way baffle valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2 It is a structural front view of the utility model;

[0017] Fig. 3 It is a structural side view of the utility model.

[0018] As shown in the figure: three-way valve body 1, guide block 2, baffle rotating shaft 3, rotating disc 4, limiting pull rod 5, fixing frame 6, servo motor 7, one-way screw rod 8, limiting moving block 9, U-shaped limiting frame 10, reset spring 11, baffle 12, high-temperature-resistant silica gel sealing gasket 13, limiting sliding block 14, limiting sliding groove 15, guide sharp block 16, stable clamping block 17. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figs. 1-3The utility model provides a technical scheme: An improved three -way baffle valve for waste heat boiler, including three -way valve body 1, through the cooperation and setting of three -way valve body 1, flow guide block 2, baffle pivot 3, carousel 4, limit pull rod 5, fixed frame 6, servo motor 7, one way screw rod 8, limit moving block 9, U type limit frame 10, return spring 11, baffle 12 and flow guide sharp block 16, when using servo motor 7 external power supply drives one way screw rod 8 left and right rotation, make limit moving block 9 drive U type limit frame 10, U type limit frame 10 and limit pull rod 5 screw position in one way screw rod 8 surface left and right movement to appropriate position, make drive carousel 4, baffle pivot 3, baffle 12 and flow guide sharp block 16 left and right rotation adjustment three -way valve body 1 in with waste heat boiler intercommunication gas flow, the existing electric three -way baffle valve mostly uses electric push rod reciprocating telescopic adjustment baffle control, and electric push rod external structure is more, and easily knock damage that protrudes three -way valve body 1, and the utility model designs improved three -way baffle valve for waste heat boiler, uses electric control, and is not easy to knock damage, and return spring 11 and U type limit frame 10 are in the process of limit pull rod 5 rotation displacement and carry out stable limit compression support, to play the role of three -way baffle valve electric stable adjustment for waste heat boiler, the inner wall both sides of three -way valve body 1 are fixedly connected with flow guide block 2, the inner side wall of valve body 1 is rotatably connected with baffle pivot 3 through bearing, one end of baffle pivot 3 is fixedly connected with carousel 4, the outer side wall of carousel 4 is fixedly connected with limit pull rod 5, the outer side wall of three -way valve body 1 is fixedly connected with fixed frame 6, the outer side wall of fixed frame 6 is fixedly connected with servo motor 7, the output end of servo motor 7 is fixedly connected with one way screw rod 8, the surface of one way screw rod 8 is threadedly connected with limit moving block 9, the bottom of limit moving block 9 is fixedly connected with U type limit frame 10, the middle part of U type limit frame 10 at limit moving block 9 bottom is fixedly connected with return spring 11, the top of baffle pivot 3 is fixedly connected with baffle 12, the surface of baffle pivot 3 is fixedly connected with high temperature resistant silica gel sealing pad 13, through the cooperation and setting of high temperature resistant silica gel sealing pad 13, limit sliding block 14, limit sliding slot 15 and stable clamping block 17, play the role of limit support of improved three -way baffle valve baffle 12 in the process of steering adjustment, and improve the sealing property of three -way baffle valve, the bottom of baffle pivot 3 is fixedly connected with limit sliding block 14, limit sliding slot 15 is set in three -way valve body 1 below baffle pivot 3, the top of baffle 12 is fixedly connected with flow guide sharp block 16, the bottom of return spring 11 is fixedly connected with limit pull rod 5, the inner wall of U type limit frame 10 is movably connected with limit pull rod 5, limit sliding slot 15 is slidably connected with limit sliding block 14, servo motor 7 is externally connected with controller, the left and right sides of baffle 12 are fixedly connected with stable clamping block 17.

[0021] In summary, the improved three-way flashboard valve for waste heat boiler, through the cooperation of three-way valve body 1, flow guide block 2, flashboard rotating shaft 3, rotating disc 4, limiting pull rod 5, fixing frame 6, servo motor 7, one-way screw rod 8, limiting moving block 9, U-shaped limiting frame 10, reset spring 11, flashboard 12 and flow guide sharp block 16, when in use, the servo motor 7 is externally connected to the power supply to drive the one-way screw rod 8 to rotate left and right, so that the limiting moving block 9 drives the U-shaped limiting frame 10, the U-shaped limiting frame 10 and the limiting pull rod 5 are threadedly limited on the surface of the one-way screw rod 8 and move left and right to the appropriate position, so that the rotating disc 4, the flashboard rotating shaft 3, the flashboard 12 and the flow guide sharp block 16 are driven to rotate left and right to adjust the gas flow direction in the three-way valve body 1 communicated with the waste heat boiler, and the existing electric three-way flashboard valve mostly uses an electric push rod to reciprocatingly extend and retract to adjust the flashboard for control, and the external structure of the electric push rod is more, and the electric push rod is easy to knock and damage when extending out of the three-way valve body 1, and the improved three-way flashboard valve for waste heat boiler is designed, electric control is used, and it is not easy to knock and damage, and the reset spring 11 and the U-shaped limiting frame 10 are stably limited, compressed and supported during the rotating displacement of the limiting pull rod 5, so that the function of electrically and stably adjusting the three-way flashboard valve for the waste heat boiler is achieved, and through the cooperation of the high-temperature-resistant silica gel sealing gasket 13, the limiting sliding block 14, the limiting sliding groove 15 and the stable clamping block 17, the function of limiting and supporting the flashboard 12 of the improved three-way flashboard valve for waste heat boiler during turning adjustment is achieved, and the sealing property of the three-way flashboard valve is improved.

[0022] In the description of the utility model, it needs to be explained that, unless there is definite stipulation and limitation, the terms "mount", "set", "sleeve / interface", "connect" and the like should be understood broadly, for example, "connect", which can be fixed connection, can also be detachable connection, or integral connection, which can be mechanical connection, can also be electrical connection, which can be direct connection, can also be indirect connection through intermediate medium, and can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0023] In the description of the utility model, it also needs to be explained that the equipment structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, power supply system and control system of the device in the design principle is not completely described clearly, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific of the power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0024] In the description of the utility model, it also needs to be explained that the standard parts used in it can be purchased from the market, and can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, part and equipment adopt the conventional model in the prior art, and the components known by the person skilled in the art, the structure and principle are known by the person skilled in the art through technical manual or through conventional experimental method.

[0025] It also needs to be explained that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the existence of other identical elements in the process, method, article or equipment including the element.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An improved tee block valve for use in a waste heat boiler, comprising a tee valve body (1), characterized in that: The inner wall of the three-way valve body (1) is fixedly connected with a flow guide block (2), the inner wall of the valve body (1) is movably connected with a baffle shaft (3) through a bearing, one end of the baffle shaft (3) is fixedly connected with a rotating disc (4), the outer wall of the rotating disc (4) is fixedly connected with a limiting pull rod (5), the outer wall of the three-way valve body (1) is fixedly connected with a fixing frame (6), the outer wall of the fixing frame (6) is fixedly connected with a servo motor (7), the output end of the servo motor (7) is fixedly connected with a one-way screw rod (8), the surface of the one-way screw rod (8) is threadedly connected with a limiting moving block (9), the bottom of the limiting moving block (9) is fixedly connected with a U-shaped limiting frame (10), the middle of the U-shaped limiting frame (10) at the bottom of the limiting moving block (9) is fixedly connected with a return spring (11), the top of the baffle shaft (3) is fixedly connected with a baffle (12), the surface of the baffle shaft (3) is fixedly connected with a high-temperature-resistant silica gel sealing gasket (13), the bottom of the baffle shaft (3) is fixedly connected with a limiting sliding block (14), the three-way valve body (1) is located below the baffle shaft (3) and is provided with a limiting sliding groove (15), and the top of the baffle (12) is fixedly connected with a flow guide sharp block (16).

2. The improved tee block valve for waste heat boiler as claimed in claim 1, wherein: The bottom of the return spring (11) is fixedly connected with a limiting pull rod (5), and the inner wall of the U-shaped limiting frame (10) is movably connected with the limiting pull rod (5).

3. The improved tee block valve for waste heat boiler as claimed in claim 1 wherein: The limiting sliding groove (15) is slidably connected with the limiting sliding block (14).

4. The improved tee block valve for waste heat boiler as claimed in claim 1 wherein: The servo motor (7) is externally connected with a controller.

5. The improved tee block valve for waste heat boiler as claimed in claim 1 wherein: The left and right sides of the baffle (12) are fixedly connected with stable clamping blocks (17).

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