Butterfly valve with heating structure

Abstract

The utility model belongs to the technical field of butterfly valves, and discloses a butterfly valve with a heating structure, which comprises a butterfly valve main body, a heating assembly is mounted on the butterfly valve main body, the heating assembly comprises a protective shell, a primary motor is mounted on the protective shell, the output end of the primary motor is connected with a screw rod, and the output end of the primary motor is connected with a secondary motor. The end, away from the first-stage motor, of the lead screw is rotationally connected with the butterfly valve body through a bearing, the lead screw is in threaded connection with a movable installation base, the movable installation base is arranged in the protective shell, a heating plate is installed on the movable installation base and stretches into the butterfly valve body, and the heating plate stretches into an inner cavity of the valve body and can make contact with fluid. The heating plate can better cope with the impact of fluid through the positioning structure, the heating plate can be pulled out of the valve body so that the heating plate can be cleaned and overhauled conveniently, the situation that the heating plate is damaged due to the fact that the heating plate is not maintained in time is avoided, and the heating plate can be overhauled conveniently by workers.

Description

Technical Field

[0001] The utility model belongs to the field of butterfly valve technology, in particular to a butterfly valve with a heating structure. Background Art

[0002] Electric butterfly valve is a type of electric valve and electric regulating valve. The main connection methods of electric butterfly valve are flange type and wafer type. The main sealing forms of electric butterfly valve are rubber seal and metal seal. The electric butterfly valve controls the switch of the butterfly valve through the power signal.

[0003] A Chinese patent with application number 202222734131.5 discloses an anti-crystallization electric butterfly valve with a heating function. By setting a heating pipe, the fluid material will enter from the position of the third flange and output from the position of the first flange. After the material passes through the inside of the auxiliary valve body, it will be heated by the heating pipe at the outer wall of the auxiliary valve body, so that the material will not crystallize at the position of the main valve body. However, the anti-crystallization electric butterfly valve with a heating function has the following shortcomings: the heating structure is not in direct contact with the fluid, resulting in heat transfer loss, and the heating structure is inconvenient to maintain.

[0004] Therefore, in order to solve the above problems, a butterfly valve with a heating structure is proposed. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a butterfly valve with a heating structure, which has the advantages of good heating effect and reduced heat loss.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly valve with a heating structure, comprising a butterfly valve body, on which a heating component is installed;

[0007] The heating assembly includes a protective shell, a primary motor is installed on the protective shell, a screw rod is connected to the output end of the primary motor, an end of the screw rod away from the primary motor is rotatably connected to the butterfly valve body through a bearing, the screw rod is threadedly connected to a movable mounting seat, the movable mounting seat is arranged in the protective shell, a heating plate is installed on the movable mounting seat, and the heating plate extends into the butterfly valve body.

[0008] Preferably, the butterfly valve body includes a valve body, a valve flap is installed in the valve body, the valve flap is fixedly connected to the valve shaft, the top of the valve shaft is fixedly connected to a primary bevel gear, the primary bevel gear is meshingly connected to a secondary bevel gear, and the secondary bevel gear is connected to a secondary motor through a motor shaft.

[0009] Preferably, a fixing pipe is fixedly connected to the top of the valve body, the valve shaft passes through the fixing pipe, a fixing seat is fixedly connected to the top of the fixing pipe, and the primary bevel gear and the secondary bevel gear are both arranged in the fixing seat.

[0010] Preferably, two ends of the valve body are fixedly connected with connecting flanges.

[0011] Preferably, a positioning slot is provided on the valve body at a position corresponding to the heating plate, and the heating plate passes through the positioning slot.

[0012] Preferably, one end of the heating plate away from the movable mounting seat is fixedly connected to a limiting plate, the size of the limiting plate is slightly larger than the positioning slot, a positioning protrusion is provided on the side of the limiting plate away from the heating plate, and a positioning recess is provided on the inner wall of the valve body at a position corresponding to the positioning protrusion.

[0013] Preferably, a screw hole is provided on the movable mounting seat at a position corresponding to the screw rod, and the screw rod is located in the screw hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model sets a heating plate, which extends into the inner cavity of the valve body and can directly contact the fluid to reduce the loss in the heat transfer process, so as to achieve a better heating effect. In addition, a positioning structure is set so that the heating plate can better cope with the impact of the fluid, which is beneficial to the stability of the heating plate.

[0016] 2. The utility model provides a heating assembly, the structure of which can pull the heating plate out of the valve body to facilitate cleaning and maintenance of the heating plate, avoid damage to the heating plate due to untimely maintenance of the heating plate, and also facilitate staff to repair the heating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the heating component of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the limit plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the valve shaft transmission structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the positioning slot structure of the utility model.

[0022] In the figure: 1. Butterfly valve body; 11. Valve body; 12. Valve disc; 13. Valve shaft; 14. Primary helical gear; 15. Secondary helical gear; 16. Secondary motor;

[0023] 2. Heating assembly; 21. Protective shell; 22. Primary motor; 23. Screw rod; 24. Movable mounting seat; 25. Heating plate;

[0024] 3. Fixing pipe; 4. Fixing seat; 5. Connecting flange; 6. Positioning slot; 7. Limiting plate; 8. Positioning protrusion; 9. Positioning recessed hole; 10. Screw hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 5 As shown, the utility model provides a butterfly valve with a heating structure, including a butterfly valve body 1, on which a heating component 2 is installed, and the heating component 2 can heat the fluid passing through the butterfly valve to prevent the fluid from crystallizing in the butterfly valve;

[0027] The heating assembly 2 includes a protective shell 21, on which a primary motor 22 is installed, and a screw rod 23 is connected to the output end of the primary motor 22. The end of the screw rod 23 away from the primary motor 22 is rotatably connected to the butterfly valve body 1 through a bearing. The screw rod 23 is threadedly connected to a movable mounting seat 24, and the movable mounting seat 24 is arranged in the protective shell 21. A heating plate 25 is installed on the movable mounting seat 24, and the heating plate 25 extends into the butterfly valve body 1. The screw rod 23 structure controls the heating plate 25 to extend into or out of the inner cavity of the valve body 11, so as to facilitate cleaning and maintenance of the heating plate 25.

[0028] Specifically, the butterfly valve body 1 includes a valve body 11, in which a valve flap 12 is installed. The valve flap 12 is fixedly connected to a valve shaft 13. The top of the valve shaft 13 is fixedly connected to a primary bevel gear 14. The primary bevel gear 14 is meshingly connected to a secondary bevel gear 15. The secondary bevel gear 15 is connected to a secondary motor 16 through a motor shaft.

[0029] Furthermore, a fixed pipe 3 is fixedly connected to the top of the valve body 11 , the valve shaft 13 passes through the fixed pipe 3 , a fixed seat 4 is fixedly connected to the top of the fixed pipe 3 , and the primary bevel gear 14 and the secondary bevel gear 15 are both arranged in the fixed seat 4 .

[0030] Furthermore, both ends of the valve body 11 are fixedly connected with connecting flanges 5, and the connecting flanges 5 can be connected to corresponding pipelines through a bolt structure.

[0031] It is worth mentioning that a positioning slot 6 is provided on the valve body 11 at a position corresponding to the heating plate 25, and the heating plate 25 passes through the positioning slot 6. The positioning slot 6 is used for the heating plate 25 to pass through, and a corresponding sealing ring is provided on the inner wall of the positioning slot 6 to ensure the sealing effect. Secondly, the positioning slot 6 also plays a limiting role to ensure the moving direction of the heating plate 25.

[0032] It is worth noting that one end of the heating plate 25 away from the movable mounting seat 24 is fixedly connected to a limiting plate 7. The size of the limiting plate 7 is slightly larger than the positioning slot 6. The limiting plate 7 can prevent the heating plate 25 from completely separating from the valve body 11, thereby preventing the fluid from spraying out from the positioning slot 6. A positioning protrusion 8 is provided on the side of the limiting plate 7 away from the heating plate 25, and a positioning recessed hole 9 is provided on the inner wall of the valve body 11 at a position corresponding to the positioning protrusion 8. The positioning recessed hole 9 cooperates with the positioning protrusion 8 to stabilize the heating plate 25.

[0033] It is worth mentioning that a screw hole 10 is provided on the movable mounting seat 24 at a position corresponding to the screw rod 23 , and the screw rod 23 is located in the screw hole 10 .

[0034] Among them, the secondary motor 16, the primary motor 22, and the heating plate 25 are existing technologies and will not be described in detail; at the same time, the utility model also includes a power supply, a controller, and a switch, which are not the main technical points of this patent and will not be described in detail.

[0035] Working principle and process: When the butterfly valve is in use, the secondary motor 16 is started, and then the secondary bevel gear 15 drives the primary bevel gear 14 to rotate. Under the transmission of the valve shaft 13, the valve disc 12 in the valve body 11 rotates to control the opening and closing of the butterfly valve body 1. In normal use, the heating plate 25 of the heating component 2 extends into the inner cavity of the valve body 11 and is located on the front and rear sides of the valve disc 12. The position of the heating plate 25 should not affect the movement of the valve disc 12. The fluid passing through the butterfly valve is quickly heated when passing through the heating plate 25 to avoid crystallization of the fluid in the butterfly valve. When the heating plate 25 needs to be cleaned or repaired, the protective shell 21 is opened and the primary motor is started. 22, and then the screw rod 23 rotates, the screw rod 23 of the movable mounting seat 24 moves, and then the heating plate 25 is pulled out of the inner cavity of the valve body 11 to expose it to the outside, and the heating plate 25 can be cleaned or repaired, and the limit plate 7 is now close to the inner wall of the valve body 11 to prevent the heating plate 25 from completely disengaging from the positioning slot 6. After the cleaning is completed, the first-level motor 22 rotates in the opposite direction, and the movable mounting seat 24 moves to the initial position along the screw rod 23, so that the heating plate 25 re-extends into the inner cavity of the valve body 11, and the positioning protrusion 8 on the limit plate 7 enters the positioning recessed hole 9 on the inner wall of the valve body 11 to increase the stability of the heating plate 25, which is beneficial to the use of the butterfly valve.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A butterfly valve with a heating structure, comprising a butterfly valve body (1), characterized in that: A heating component (2) is installed on the butterfly valve body (1); The heating assembly (2) comprises a protective shell (21), a primary motor (22) is mounted on the protective shell (21), an output end of the primary motor (22) is connected to a screw rod (23), an end of the screw rod (23) away from the primary motor (22) is rotatably connected to the butterfly valve body (1) via a bearing, the screw rod (23) is threadedly connected to a movable mounting seat (24), the movable mounting seat (24) is arranged in the protective shell (21), a heating plate (25) is mounted on the movable mounting seat (24), and the heating plate (25) extends into the butterfly valve body (1).

2. The butterfly valve with a heating structure according to claim 1, characterized in that: The butterfly valve body (1) comprises a valve body (11), a valve flap (12) is installed in the valve body (11), the valve flap (12) is fixedly connected to a valve shaft (13), the top end of the valve shaft (13) is fixedly connected to a primary bevel gear (14), the primary bevel gear (14) is meshingly connected to a secondary bevel gear (15), and the secondary bevel gear (15) is connected to a secondary motor (16) via a motor shaft.

3. The butterfly valve with a heating structure according to claim 2, characterized in that: The top of the valve body (11) is fixedly connected to a fixing pipe (3), the valve shaft (13) passes through the fixing pipe (3), the top of the fixing pipe (3) is fixedly connected to a fixing seat (4), and the first-stage bevel gear (14) and the second-stage bevel gear (15) are both arranged in the fixing seat (4).

4. The butterfly valve with a heating structure according to claim 2, characterized in that: Both ends of the valve body (11) are fixedly connected with connecting flanges (5).

5. The butterfly valve with a heating structure according to claim 2, characterized in that: A positioning slot hole (6) is provided on the valve body (11) at a position corresponding to the heating plate (25), and the heating plate (25) passes through the positioning slot hole (6).

6. The butterfly valve with a heating structure according to claim 5, characterized in that: One end of the heating plate (25) away from the movable mounting seat (24) is fixedly connected to a limit plate (7); the size of the limit plate (7) is slightly larger than the positioning slot (6); a positioning protrusion (8) is provided on the side of the limit plate (7) away from the heating plate (25); and a positioning recessed hole (9) is provided on the inner wall of the valve body (11) at a position corresponding to the positioning protrusion (8).

7. The butterfly valve with a heating structure according to claim 1, characterized in that: A screw hole (10) is provided on the movable mounting seat (24) at a position corresponding to the screw rod (23), and the screw rod (23) is located in the screw hole (10).

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