Single-blade bearing ventilation circular valve

Abstract

The utility model belongs to the technical field of Vocs, dust removal and oil mist treatment ventilation pipeline valves, and discloses a single-blade bearing ventilation circular valve. A single-blade bearing ventilation circular valve comprises a valve body and a valve shaft. The valve shaft penetrates through the valve body, the middle area of the valve shaft is arranged in the valve body, the two ends of the valve shaft extend out of the valve body, sealing mechanisms are arranged at the joint of the valve shaft arranged outside the valve body and the valve body, the two ends of the valve shaft penetrate through the sealing mechanisms respectively and then are connected with the bearing mechanisms, and the driving mechanism is arranged at the tail end of the bearing mechanism at one end. The valve shaft is in interference fit with the bearing mechanism; a check ring is arranged in the valve body, and a plurality of blades are arranged on the valve shaft arranged in the valve body; the driving mechanism is in key connection with the valve shaft. The valve is convenient to assemble, good in valve matching effect, high in strength, free of influence of plate thickness, flexible to open and close and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of VOCs, dust removal and oil mist treatment ventilation pipeline valves, and relates to a single-blade bearing ventilation circular valve. Background Art

[0002] With the rapid development of modern industry, valves in ventilation ducts are increasingly widely used. The requirements for valve plate thickness and matching clearance are getting higher and higher. The existing valves are complicated to assemble, the valve matching effect is not good, and they are unstable in actual use. The switch is not flexible under the current working conditions. The traditional manufacturing method and process can no longer meet the current needs, resulting in the need for major changes in the structure and composition of the valve. It is urgent to develop a new type of structural valve that can meet the current working conditions and has good matching and stable operation. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned background technology and to provide a single-blade bearing ventilation circular valve, which is easy to assemble, has good valve matching effect, high strength and is not affected by plate thickness, and is flexible to open and close and easy to operate.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a single-blade bearing ventilation circular valve, including a valve body and a valve shaft; the valve shaft is penetrated on the valve body, the middle area of ​​the valve shaft is placed in the valve body, both ends of the valve shaft extend out of the valve body, a sealing mechanism is arranged at the connection between the valve shaft outside the valve body and the valve body, the two ends of the valve shaft are respectively penetrated by the sealing mechanism and then connected with the bearing mechanism, and a driving mechanism is arranged at the end of the bearing mechanism at one end; the valve shaft and the bearing mechanism are interference fit; a retaining ring is arranged in the valve body, and a plurality of blades are arranged on the valve shaft arranged in the valve body; the driving mechanism is key-connected with the valve shaft.

[0005] Brackets are arranged at both ends of the valve body, and the brackets are connected to the bearing brackets. A driving mechanism bracket is arranged on one of the bearing brackets; and the driving mechanism is fixed on the driving mechanism bracket.

[0006] The retaining ring is arranged on the inner periphery of the valve body, and the retaining ring is intermittently welded to the inner wall of the valve body.

[0007] The valve shaft and the blade are fastened with bolts.

[0008] The sealing mechanism includes a packing gland, two compression tubes, a packing sealing tube, and a graphite sealing ring. The two compression tubes and the graphite sealing ring are placed in the packing sealing tube, and the two compression tubes are respectively located at the upper and lower ends of the graphite sealing ring. The compression tube and the graphite sealing ring are sleeved on the outer periphery of the valve shaft, and the packing sealing tube is welded to the valve body as an integral whole; the packing gland is set on the pipe mouth of the packing sealing tube by bolts.

[0009] The bearing mechanism comprises a rolling bearing and a bearing seat, wherein the rolling bearing is arranged on the bearing seat, the rolling bearing sleeve is arranged on the valve shaft, the bearing seat is arranged on the bearing bracket, and the bearing mechanism is fixed on the bearing bracket by bolts.

[0010] The driving mechanism is an actuator, and the square key of the valve shaft is inserted into the actuator to connect the valve shaft and the actuator together; the actuator is an actuator of any driving form among electric actuator, pneumatic actuator and handwheel actuator, and is not limited to a specific model, as long as its working function is achieved. The actuator is set on the driving mechanism bracket by bolts, and the driving mechanism bracket is connected and fixed to the valve body through the bearing bracket and the bracket.

[0011] Furthermore, the valve shaft is made of round steel, and the material of the valve shaft is determined according to different working conditions; no specific restrictions are made, and specific working requirements can be met.

[0012] Furthermore, a flange for fixing the valve is arranged on one end surface of the valve body.

[0013] Furthermore, the sealing mechanism is used to thermally seal the connection between the valve shaft and the valve body.

[0014] Furthermore, the valve body is formed by rolling and welding a seamless steel pipe or a plate strip.

[0015] Furthermore, the flange, retaining ring, blades and bracket are all processed by a laser cutting machine.

[0016] Furthermore, the valve body is a cylindrical valve body.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a single-blade bearing ventilation circular valve, which is easy to assemble, has greatly improved switching flexibility, and has a more stable overall structure. It can be used in pipelines made of various materials such as carbon steel plates, stainless steel plates, galvanized plates, and aluminized plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a front view of a single-blade bearing ventilation circular valve of the utility model.

[0021] Figure 2 yes Figure 1 AA section view.

[0022] Figure 3 The utility model is a side view of a single-blade bearing ventilation circular valve.

[0023] Figure 4The utility model is an axonometric view of a single-blade bearing ventilation circular valve.

[0024] In the figure, 1. valve shaft, 2. flange, 3. valve body, 4. retaining ring, 5. blade, 6. sealing mechanism, 7. bracket, 8. bearing mechanism, and 9. driving mechanism. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0026] Example 1

[0027] A single blade bearing ventilation circular valve, such as Figure 1-4 As shown, it includes a valve body 3 and a valve shaft 1; the valve shaft 1 is penetrated on the valve body 3, the middle area of ​​the valve shaft 1 is placed in the valve body 3, both ends of the valve shaft 1 extend out of the valve body 3, a sealing mechanism 6 is arranged at the connection between the valve shaft 1 outside the valve body 3 and the valve body 3, both ends of the valve shaft 1 are penetrated by the sealing mechanism 6 respectively and then connected with the bearing mechanism 8, and a driving mechanism 9 is arranged at the end of the bearing mechanism 8 at one end; the valve shaft 1 and the bearing mechanism 8 are interference fit; a retaining ring 4 is arranged in the valve body 3, and a plurality of blades 5 are arranged on the valve shaft 1 arranged in the valve body 3; the driving mechanism 9 is key-connected with the valve shaft 1.

[0028] Brackets 7 are arranged at both ends of the valve body 3, and the brackets 7 are connected to the bearing brackets. A driving mechanism bracket is arranged on one of the bearing brackets; and the driving mechanism 9 is fixed on the driving mechanism bracket.

[0029] The retaining ring 4 is arranged on the inner periphery of the valve body 3 , and the retaining ring 4 and the inner wall of the valve body 3 are intermittently welded.

[0030] The valve shaft 1 and the blade 5 are fastened and fixed with bolts.

[0031] The sealing mechanism 6 includes a packing gland, two compression tubes, a packing sealing tube, and a graphite sealing ring. The two compression tubes and the graphite sealing ring are placed in the packing sealing tube, and the two compression tubes are respectively located at the upper and lower ends of the graphite sealing ring. The compression tube and the graphite sealing ring are sleeved on the outer periphery of the valve shaft 1, and the packing sealing tube and the valve body 3 are welded together; the packing gland is set on the pipe mouth of the packing sealing tube by bolts.

[0032] The bearing mechanism 8 includes a rolling bearing and a bearing seat. The rolling bearing is arranged on the bearing seat. The rolling bearing is sleeved on the valve shaft 1. The bearing seat is arranged on the bearing bracket. The bearing mechanism 8 is fixed to the bearing bracket by bolts.

[0033] The driving mechanism 9 is an actuator, and the square key of the valve shaft 1 is inserted into the actuator to connect the valve shaft 1 and the actuator together; the actuator is an actuator of any driving form among electric actuator, pneumatic actuator, and handwheel actuator, and is not limited to a specific model, as long as its working function is achieved. The actuator is set on the driving mechanism bracket by bolts, and the driving mechanism bracket is connected and fixed to the valve body 3 through the bearing bracket and the bracket 7.

[0034] A flange 2 for fixing the valve is arranged on one end surface of the valve body 3 .

[0035] The sealing mechanism 6 is used for thermally insulating and sealing the connection between the valve shaft 1 and the valve body 3 .

[0036] The valve body 3 is a cylindrical valve body 3 .

[0037] The valve shaft 1 is made of round steel and then a full-through keyway is machined in the middle of the valve shaft by a milling machine.

[0038] The flange 2, retaining ring 4 and blade 5 are formed by laser cutting of flat steel plates.

[0039] The bracket 7 is made of flat steel plate by laser cutting and then processed by a bending process.

[0040] The cylindrical valve body 3 is laser cut from a flat steel plate, rolled and formed by a three-roller rolling machine, and integrated by argon arc welding. At the same time, the flange 2, the retaining ring 4, the sealing mechanism 6 and the bracket 7 are welded to the cylindrical valve body 3.

[0041] The sealing mechanism 6 comprises a packing gland, two compression tubes, a packing sealing tube and a graphite sealing ring. The compression tube and the packing sealing tube are made of seamless steel tubes. During assembly, a compression tube is first placed in the packing sealing tube, and then six graphite sealing rings are filled, and then a compression tube is placed on it, and finally the packing gland is installed. The sealing performance is adjusted by tightening the bolts on the packing gland.

[0042] The rotating mechanism 8, the valve shaft 1 passes through the rolling bearing, so that the rolling bearing fixes the valve shaft 1 to ensure its coaxiality;

[0043] The driving mechanism 9 connects the square key of the valve shaft 1 with the square groove of the actuator.

[0044] After the utility model single blade bearing ventilation circular valve is connected to the system pipeline, when the gas medium flows through the single blade bearing ventilation circular valve, the valve body 3 flange 2 and the sealing mechanism 6 are both subject to the internal pressure, which is prone to leakage and cannot meet the technical requirements of the working conditions. Moreover, with the change of wind speed and pressure, the resistance of the single blade bearing ventilation circular valve also changes accordingly. The graphite sealing ring filled by the sealing mechanism 6 and the valve shaft 1 are fixed by the bearing mechanism 8. It not only ensures that the leakage rate is reduced and the sealing performance is improved, but also reduces the rotation resistance, ensuring that the single blade bearing ventilation circular valve runs smoothly and realizes the shutoff and adjustment functions.

[0045] This single blade bearing ventilated circular valve component uses a bearing mechanism 8 to fix the valve shaft 1, which not only ensures the coaxiality of the valve shaft 1, but also reduces the noise during the operation of the single blade bearing ventilated circular valve, reduces the friction resistance when the single blade bearing ventilated circular valve is opened and closed, and reduces the actuator torque. It can be used in systems under various working conditions with low requirements on leakage rate to play a cutting or regulating role.

[0046] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A single blade bearing ventilation circular valve, characterized in that: The invention comprises a valve body (3) and a valve shaft (1); the valve shaft (1) is inserted into the valve body (3), the middle area of ​​the valve shaft (1) is arranged in the valve body (3), the two ends of the valve shaft (1) are arranged to extend out of the valve body (3), a sealing mechanism (6) is arranged at the connection between the valve shaft (1) and the valve body (3) which is arranged outside the valve body (3), the two ends of the valve shaft (1) are respectively inserted into the sealing mechanism (6) and then connected to the bearing mechanism (8), and a driving mechanism (9) is arranged at the end of the bearing mechanism (8) at one end; the valve shaft (1) and the bearing mechanism (8) are interference fit; a retaining ring (4) is arranged in the valve body (3), and a plurality of blades (5) are arranged on the valve shaft (1) arranged in the valve body (3); the driving mechanism (9) is key-connected to the valve shaft (1); The bearing mechanism (8) comprises a rolling bearing and a bearing seat, wherein the rolling bearing is arranged on the bearing seat, the rolling bearing sleeve is arranged on the valve shaft (1), the bearing seat is arranged on the bearing bracket, and the bearing mechanism (8) is fixed to the bearing bracket by bolts.

2. A single blade bearing ventilation circular valve as claimed in claim 1, characterized in that: Brackets (7) are arranged at both ends of the valve body (3), and the brackets (7) are connected to the bearing brackets; a driving mechanism bracket is arranged on one of the bearing brackets; and the driving mechanism (9) is fixed on the driving mechanism bracket.

3. A single blade bearing ventilation circular valve as claimed in claim 2, characterized in that: The retaining ring (4) is arranged on the inner periphery of the valve body (3), and the retaining ring (4) and the inner wall of the valve body (3) are intermittently welded.

4. A single blade bearing ventilation circular valve as claimed in claim 3, characterized in that: The sealing mechanism (6) comprises a packing gland, two compression tubes, a packing sealing tube, and a graphite sealing ring. The two compression tubes and the graphite sealing ring are placed in the packing sealing tube, and the two compression tubes are respectively located at the upper and lower ends of the graphite sealing ring. The compression tube and the graphite sealing ring are sleeved on the outer periphery of the valve shaft (1), and the packing sealing tube and the valve body (3) are welded together; the packing gland is arranged on the pipe opening of the packing sealing tube by means of bolts.

5. A single blade bearing ventilation circular valve as claimed in claim 4, characterized in that: The driving mechanism (9) is an actuator, and the square key of the valve shaft (1) is inserted into the actuator to connect the valve shaft (1) and the actuator together.

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