Heating assembly

Abstract

The utility model relates to the technical field of heating equipment, in particular to a heating assembly, which comprises an electric heating tube, a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece can be locked along the axial direction of the electric heating tube, the first connecting piece comprises a second ring body part, the second connecting piece comprises a fourth ring body part, and the fourth ring body part is connected with the electric heating tube. A first sealing part is arranged between the second ring body part and the fourth ring body part, at least part of the first sealing part is located on the outer circumference of the electric heating tube, the second ring body part abuts against at least part of the first sealing part, and / or the fourth ring body part abuts against at least part of the first sealing part. At least one of the first connecting piece and the second connecting piece can apply pressure to the first sealing piece between the first connecting piece and the second connecting piece, the pressure points to the electric heating pipe, the first sealing piece is tightly attached to the peripheral face of the electric heating pipe through the pressure, the sealing performance is improved, and the pressure bearing performance of the heating assembly is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating equipment technical field especially relates to a heating assembly. BACKGROUND

[0002] Electric heating tube is used in various trades, for heating liquid or gas, electric heating tube generally needs to be connected to the flow path of fluid, in order to avoid fluid leakage, needs to be sealed through sealing element, the sealing of the sealing ring in the related art is generally realized between electric heating tube and connecting piece, and the sealing of this kind of sealing mode is not good. UTILITY MODEL CONTENTS

[0003] The utility model discloses a heating assembly that solves the problem of poor sealing effect between the electric heating tube and the connecting piece in the prior art.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of heating assembly, including electric heating tube, first connecting piece, second connecting piece, the first connecting piece with the second connecting piece can be locked along electric heating tube axial direction, the first connecting piece includes second ring body part, the second connecting piece includes fourth ring body part, first sealing element is located between the second ring body part and fourth ring body part is equipped, at least part of the first sealing element is located electric heating tube outer circumference, the second ring body part and at least part of first sealing element are in abutment, and / or the fourth ring body part and at least part of first sealing element are in abutment.

[0006] The first face of the second ring body part end has, the first face can be at least part of first sealing element located electric heating tube outer circumference Exert the pressure directed to electric heating tube, and this pressure has the component force of radial direction directed to electric heating tube;

[0007] And / or the fourth ring body part end has second face, the second face can be at least part of first sealing element located electric heating tube outer circumference Exert the pressure directed to electric heating tube, and this pressure has the component force of radial direction directed to electric heating tube.

[0008] The first sealing element includes first sealing ring, the first sealing ring is sleeved in electric heating tube outer circumference, and first sealing ring is clamped between the second ring body part and the fourth ring body part;

[0009] The first face is conical face, and the included angle between the conical face and electric heating tube is acute angle, and at least part of the first sealing ring is located between the conical face and electric heating tube;

[0010] Or the second face is conical face, and the included angle between the conical face and electric heating tube is acute angle, and at least part of the first sealing ring is located between the conical face and electric heating tube.

[0011] The first sealing member comprises a ring body, a second sealing ring and a third sealing ring, the ring body, the second sealing ring and the third sealing ring are sleeved on the outer circumference of the electric heating tube, the second sealing ring is clamped between one side of the ring body and the second ring body, and the third sealing ring is clamped between the other side of the ring body and the fourth ring body.

[0012] The second ring body is provided with a first face at the end thereof, the first face is a vertical face, the included angle between the first face and the electric heating tube is a right angle, and the first face can make the first sealing member at least partially deformed along the radial direction of the electric heating tube.

[0013] The fourth ring body is provided with a second face at the end thereof, the second face is a vertical face, the included angle between the second face and the electric heating tube is a right angle, and the second face can make the first sealing member at least partially deformed along the radial direction of the electric heating tube.

[0014] The ring body is provided with a third taper face at the side close to the second ring body, and the second sealing ring is clamped between the second ring body and the third taper face.

[0015] The ring body is provided with a fourth taper face at the side close to the fourth ring body, and the third sealing ring is clamped between the fourth ring body and the fourth taper face.

[0016] The fourth ring body is provided with a third ring body fixedly connected or integrated at the side close to the second ring body, the second ring body is provided with external threads, and the third ring body is provided with internal threads connected with the external threads of the second ring body.

[0017] The fourth ring body is provided with a third ring body fixedly connected or integrated at the side close to the second ring body, the second ring body is provided with internal threads, and the third ring body is provided with external threads connected with the internal threads of the second ring body.

[0018] The first connecting member comprises a main body, the main body is integrally provided with a first ring body and a second ring body at one side, a groove is arranged between the first ring body and the second ring body, a fourth sealing ring is arranged in the groove, and the end of the electric heating tube abuts against the fourth sealing ring.

[0019] The heating assembly comprises a first pressing plate, a second pressing plate and a screw assembly, the first pressing plate is limitingly supported at one end of the electric heating tube, the second pressing plate is limitingly supported at the other end of the electric heating tube, the first pressing plate and the second pressing plate are locked with the electric heating tube through the screw assembly along the axial direction of the electric heating tube.

[0020] The heating element includes a first heating element body and a second heating element body arranged coaxially. An intermediate component is provided between the first heating element body and the second heating element body. Each side of the intermediate component is provided with a groove, and each groove is provided with a fifth sealing ring. One end of the first heating element body abuts against the fifth sealing ring of one groove, and one end of the second heating element body abuts against the fifth sealing ring of the other groove.

[0021] The heating assembly includes a third connector and a second seal. The intermediate component has a seventh ring portion on one side. The third connector includes an integrally formed fifth ring portion and a sixth ring portion. The sixth ring portion is threadedly connected to the seventh ring portion. The second seal is located between the fifth ring portion and the seventh ring portion. The fifth ring portion can apply pressure to the second seal in the direction of the first heating element, and / or the seventh ring portion can apply pressure to the second seal in the direction of the first heating element.

[0022] The heating assembly proposed in this utility model has the following advantages: when the first connecting member and the second connecting member of the device are locked along the axial direction of the heating tube, at least one of them can apply pressure to the first sealing member between them, and the pressure is directed towards the heating tube. Through this pressure, the first sealing member is tightly attached to the outer circumferential surface of the heating tube, thereby improving the sealing performance and making the heating assembly more pressure-bearing. Attached Figure Description

[0023] Figure 1 This is a partial half-section diagram of the present invention. Figure 1 ;

[0024] Figure 2 This is a partial half-section diagram of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0026] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of this utility model.

[0028] In the diagram: 1. Heating element; 2. First connector; 3. Second connector; 4. Main body; 5. First ring body; 6. Second ring body; 7. Groove; 8. First face; 9. Third ring body; 10. Fourth ring body; 11. Second face; 13. Ring body; 16. Third conical surface; 17. Fourth conical surface; 18. First sealing element; 19. First sealing ring; 20. Second sealing ring; 21. Third sealing ring; 22. Fourth sealing ring; 23. First pressure plate; 24. Second pressure plate; 25. Screw assembly; 26. First heating element body; 27. Second heating element body; 28. Intermediate part; 29. ​​Fifth sealing ring; 30. Groove; 31. Third connector; 32. Fifth ring body; 33. Second sealing element; 34. Sixth ring body; 35. Seventh ring body. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-5 A heating assembly includes a heating element 1, a first connector 2, and a second connector 3. The first connector 2 and the second connector 3 are lockable along the axial direction of the heating element 1. The first connector 2 includes a second ring portion 6, and the second connector 3 includes a fourth ring portion 10. A first sealing element 18 is provided between the second ring portion 6 and the fourth ring portion 10. At least a portion of the first sealing element 18 is located on the outer circumference of the heating element 1. The second ring portion 6 abuts against at least a portion of the first sealing element 18, and / or the fourth ring portion 10 abuts against at least a portion of the first sealing element 18.

[0031] When the first connector 2 and the second connector 3 are locked along the axial direction of the heating tube 1, at least one of them can apply radial pressure to the first seal 18 between them, and the pressure is directed towards the heating tube 1. This pressure makes the first seal 18 fit tightly against the outer circumferential surface of the heating tube 1, thereby improving the sealing performance and making the heating assembly more pressure-bearing.

[0032] As one implementation method, refer to Figure 1 The second ring body 6 has a first surface 8 at its end. The first surface 8 can apply pressure to at least a portion of the first seal 18 located on the outer circumference of the heating tube 1, which is directed towards the heating tube 1. This pressure has a component force in the radial direction of the heating tube. When the first surface 8 is a conical surface, the angle between the conical surface and the heating tube is an acute angle. The first seal 18 is located between the conical surface and the heating tube. The component force generated by the conical surface on the first seal makes the first seal abut against the outer wall of the heating tube.

[0033] When the first face 8 is a vertical face, the angle between the vertical face and the heating tube is a right angle. The first face 8 can cause the first seal 18 to deform at least partially along the radial direction of the heating tube, and can also exert radial pressure on the first seal 18 by compression. This pressure depends on the local deformation of the first seal 18.

[0034] The fourth ring body portion 10 has a second face portion 11 at its end. The second face portion 11 is capable of applying pressure to at least a portion of the first seal 18 located on the outer circumference of the heating tube 1, directed towards the heating tube 1. This pressure has a radial component pointing towards the heating tube. When the second face portion 11 is a conical surface, the angle between the conical surface and the heating tube is acute. The first seal 18 is located between the conical surface and the heating tube, and the component force generated by the conical surface on the first seal causes the first seal to abut against the outer wall of the heating tube.

[0035] When the second face 11 is a vertical face, the angle between the vertical face and the heating tube is a right angle. The second face 11 can cause the first seal 18 to deform at least partially along the radial direction of the heating tube, and can also exert radial pressure on the first seal 18 by compression. This pressure depends on the local deformation of the first seal 18.

[0036] The first sealing element 18 is sandwiched between the second ring body 6 and the fourth ring body 10. When the first connecting element 2 and the second connecting element 3 are locked along the axial direction of the heating tube 1, the first face 8 and / or the second face 11 apply clamping force and downward pressure to the first sealing element 18 to improve the sealing performance.

[0037] As one implementation method, refer to Figure 1 The first sealing element 18 includes a first sealing ring 19, which is sleeved on the outer circumference of the heating tube 1 and sandwiched between the second ring body 6 and the fourth ring body 10. The first sealing ring 19 can be an O-ring, which can distribute the force more evenly and improve the sealing performance.

[0038] The first face is a conical surface, and the angle between the conical surface and the heating element is an acute angle, with at least a portion of the first sealing ring located between the conical surface and the heating element; or the second face is a conical surface, and the angle between the conical surface and the heating element is an acute angle, with at least a portion of the first sealing ring located between the conical surface and the heating element.

[0039] As another implementation method, refer to Figure 2 , Figure 3 The first sealing element 18 includes an annular element 13, a second sealing ring 20, and a third sealing ring 21. The annular element 13, the second sealing ring 20, and the third sealing ring 21 are all sleeved on the outer circumference of the heating tube 1. The second sealing ring 20 is sandwiched between one side of the annular element 13 and the second annular portion 6, and the third sealing ring 21 is sandwiched between the other side of the annular element 13 and the fourth annular portion 10.

[0040] A movable ring 13 is provided between one side of the ring 13 and the second ring part 6, and a second sealing ring 20 and a third sealing ring 21 are respectively provided on both sides of the ring 13. The provision of multiple sealing rings further improves the sealing performance.

[0041] In one implementation, two or more ring components 13 may be provided, with the ring components 13 and multiple sealing rings alternately stacked along the radial direction of the heating tube.

[0042] As another implementation method, refer to Figure 2 , Figure 3 The ring body 13 has a third conical surface 16 on the side near the second ring body 6, and the second sealing ring 20 is sandwiched between the second ring body 6 and the third conical surface 16.

[0043] The ring body 13 has a fourth conical surface 17 on the side near the fourth ring body portion 10, and the third sealing ring 21 is sandwiched between the fourth ring body portion 10 and the fourth conical surface 17.

[0044] The ring component 13 is provided with a third conical surface 16 and / or a fourth conical surface 17, so that the ring component 13 can also generate pressure on the second sealing ring 20 and the third sealing ring 21 in the direction of the heating tube 1, thereby further improving the sealing performance.

[0045] Depending on the specific working conditions, this device is equipped with different numbers of first sealing elements 18.

[0046] As one implementation method, refer to Figure 2 , Figure 3 The fourth ring body 10 has a third ring body 9 that is fixed or integral with the second ring body 6 on the side close to the second ring body 6. The second ring body 6 has an external thread, and the third ring body 9 has an internal thread that is threadedly connected to the second ring body 6.

[0047] Alternatively, the fourth ring portion 10 may have a fixed or integral third ring portion 9 on the side near the second ring portion 6, the second ring portion 6 having an internal thread, and the third ring portion 9 having an external thread that is threadedly connected to the second ring portion 6.

[0048] The first connector 2 and the second connector 3 are locked together by threads, which not only has a simple structure, but also allows for adjustment of different sealing pressure resistance.

[0049] refer to Figure 2 , Figure 3 The first connector 2 includes a main body 4. A first ring body 5 and a second ring body 6 are integrally formed on one side of the main body 4. A groove 7 is provided between the first ring body 5 and the second ring body 6. A fourth sealing ring 22 is provided in the groove 7. The end of the heating tube 1 abuts against the fourth sealing ring 22.

[0050] The fourth sealing ring 22 also provides a certain sealing effect and serves as an axial damping mechanism for the heating element. At the same time, the elasticity of the fourth sealing ring 22 can be used to reduce the precision requirements of the device assembly.

[0051] refer to Figure 3 , Figure 4 The heating assembly includes a first pressure plate 23, a second pressure plate 24, and a screw assembly 25. The first pressure plate 23 is positioned and supported at one end of the heating element 1, and the second pressure plate 24 is positioned and supported at the other end of the heating element 1. Along the axial direction of the heating element 1, the first pressure plate 23 and the second pressure plate 24 are locked to the heating element 1 by the screw assembly 25. The first connector 2 is tightened to the end of the heating element 1 by the first pressure plate 23, the second pressure plate 24, and the screw assembly 25.

[0052] refer to Figure 3 The heating element 1 includes a first heating element body 26 and a second heating element body 27 coaxially arranged. An intermediate component 28 is provided between the first heating element body 26 and the second heating element body 27. Each side of the intermediate component 28 has a groove 30, and each groove 30 has a fifth sealing ring 29. One end of the first heating element body 26 abuts against the fifth sealing ring 29 of one groove 30, and one end of the second heating element body 27 abuts against the fifth sealing ring 29 of the other groove 30. By using multiple heating elements connected in series, the heating efficiency of the heating assembly is improved, and adjacent heating elements are connected and sealed via the intermediate component 28.

[0053] In one embodiment, the device has three or more heating elements, with adjacent heating elements connected in series via the aforementioned structure.

[0054] To improve the sealing between adjacent heating elements, the heating assembly includes a third connector 31 and a second seal 33. One side of the intermediate member 28 has a seventh ring portion 35. The third connector 31 includes an integrally formed fifth ring portion 32 and a sixth ring portion 34. The sixth ring portion 34 and the seventh ring portion 35 are threadedly connected. The second seal 33 is located between the fifth ring portion 32 and the seventh ring portion 35. The fifth ring portion 32 can apply pressure to the second seal 33 pointing towards the first heating element 26, and / or the seventh ring portion 35 can apply pressure to the second seal 33 pointing towards the first heating element 26.

[0055] refer to Figure 3 By twisting the sixth ring body 34, the distance between the fifth ring body 32 and the seventh ring body 35 is changed, thereby changing the pressure of the fifth ring body 32 and the seventh ring body 35 on the second seal 33, wherein the structure of the second seal 33 can be referenced to that of the first seal 18.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating assembly, characterized in that, The device includes a heating element (1), a first connector (2), and a second connector (3). The first connector (2) and the second connector (3) can be locked together along the axial direction of the heating element (1). The first connector (2) includes a second ring body portion (6), and the second connector (3) includes a fourth ring body portion (10). A first sealing element (18) is provided between the second ring body portion (6) and the fourth ring body portion (10). At least a portion of the first sealing element (18) is located on the outer circumference of the heating element (1). The second ring body portion (6) abuts against at least a portion of the first sealing element (18), and / or the fourth ring body portion (10) abuts against at least a portion of the first sealing element (18).

2. A heating assembly according to claim 1, characterized in that, The second ring body portion (6) has a first face portion (8) at its end, which is capable of applying a pressure directed toward the heating tube (1) to at least a portion of the first seal (18) located on the outer circumference of the heating tube (1), the pressure having a radial component pointing toward the heating tube; And / or the end of the fourth ring body (10) has a second face (11) that is capable of applying pressure toward the heating tube (1) to at least a portion of the first seal (18) located on the outer circumference of the heating tube (1), the pressure having a component force in the radial direction toward the heating tube.

3. A heating assembly according to claim 2, characterized in that, The first sealing element (18) includes a first sealing ring (19), which is sleeved on the outer circumference of the heating tube (1) and sandwiched between the second ring body (6) and the fourth ring body (10); The first face (8) is a conical surface, and the angle between the conical surface and the heating tube is an acute angle. At least a portion of the first sealing ring (19) is located between the conical surface and the heating tube. And / or the second face (11) is a conical face, the angle between the conical face and the heating tube is an acute angle, and at least a portion of the first sealing ring (19) is located between the conical face and the heating tube.

4. A heating assembly according to claim 1, characterized in that, The first sealing element (18) includes an annular element (13), a second sealing ring (20), and a third sealing ring (21). The annular element (13), the second sealing ring (20), and the third sealing ring (21) are all sleeved on the outer circumference of the heating tube (1). The second sealing ring (20) is sandwiched between one side of the annular element (13) and the second annular part (6), and the third sealing ring (21) is sandwiched between the other side of the annular element (13) and the fourth annular part (10). And / or the end of the second ring body portion (6) has a first face (8), the first face (8) is a vertical plane, the vertical plane is at a right angle to the heating tube, the first face (8) can cause the first seal (18) to deform at least partially along the radial direction of the heating tube; And / or the end of the fourth ring body (10) has a second face (11), which is a vertical plane and forms a right angle with the heating tube. The second face (11) enables the first seal (18) to deform at least partially along the radial direction of the heating tube.

5. A heating assembly according to claim 4, characterized in that, The ring body (13) has a third conical surface (16) on the side near the second ring body (6), and the second sealing ring (20) is sandwiched between the second ring body (6) and the third conical surface (16); And / or the ring body (13) has a fourth conical surface (17) on the side near the fourth ring body (10), and the third sealing ring (21) is sandwiched between the fourth ring body (10) and the fourth conical surface (17).

6. A heating assembly according to any one of claims 1-5, characterized in that, The fourth ring body (10) has a third ring body (9) fixedly connected or integrally formed on the side near the second ring body (6), the second ring body (6) has an external thread, and the third ring body (9) has an internal thread that is threadedly connected to the second ring body (6). Alternatively, the fourth ring body (10) may have a fixed or integral third ring body (9) on the side near the second ring body (6), the second ring body (6) having an internal thread, and the third ring body (9) having an external thread that is threadedly connected to the second ring body (6).

7. A heating assembly according to claim 6, characterized in that, The first connector (2) includes a main body (4), on one side of the main body (4) are integrally formed a first ring body (5) and a second ring body (6), a groove (7) is provided between the first ring body (5) and the second ring body (6), and a fourth sealing ring (22) is provided in the groove (7), and the end of the electric heating tube (1) abuts against the fourth sealing ring (22).

8. A heating assembly according to claim 7, characterized in that, The heating assembly includes a first pressure plate (23), a second pressure plate (24), and a screw assembly (25). The first pressure plate (23) is limited and supported at one end of the electric heating tube (1), and the second pressure plate (24) is limited and supported at the other end of the electric heating tube (1). Along the axial direction of the electric heating tube (1), the first pressure plate (23) and the second pressure plate (24) are locked to the electric heating tube (1) by the screw assembly (25).

9. A heating assembly according to any one of claims 1-5 and 7-8, characterized in that, The electric heating tube (1) includes a first electric heating tube body (26) and a second electric heating tube body (27) arranged coaxially. An intermediate part (28) is provided between the first electric heating tube body (26) and the second electric heating tube body (27). A groove (30) is provided on each side of the intermediate part (28). Each groove (30) is provided with a fifth sealing ring (29). One end of the first electric heating tube body (26) abuts against the fifth sealing ring (29) of one groove (30), and one end of the second electric heating tube body (27) abuts against the fifth sealing ring (29) of another groove (30).

10. A heating assembly according to claim 9, characterized in that, The heating assembly includes a third connector (31) and a second seal (33). The intermediate part (28) has a seventh ring body (35) on one side. The third connector (31) includes an integrally formed fifth ring body (32) and a sixth ring body (34). The sixth ring body (34) is threadedly connected to the seventh ring body (35). The second seal (33) is located between the fifth ring body (32) and the seventh ring body (35). The fifth ring body (32) can apply pressure to the second seal (33) pointing towards the first heating tube (26), and / or the seventh ring body (35) can apply pressure to the second seal (33) pointing towards the first heating tube (26).

Images