Sealing brush special for air seal of rotary heat accumulating type air preheater

Abstract

The utility model discloses a sealing brush special for air sealing of a rotary heat accumulating type air preheater, which is characterized in that one side of a first gland is fixedly connected with a rotor part, the other side of the first gland is provided with a first mounting groove, a plurality of first steel wire ropes are fixedly connected in the first mounting groove, and one side of a notch of the first gland is fixedly connected with a brush handle; a second gland is fixedly connected to the other side of the upper end of the brush handle, a second mounting groove is formed in the second gland located on one side of the brush handle, a plurality of second steel wire ropes are fixedly connected into the second mounting groove, and the second bristles, the brush strips and the first bristles all make contact with the sealing face. The utility model aims to provide the sealing brush which has better high temperature resistance and wear resistance and can effectively improve the sealing effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing structure technical field, specifically is a kind of rotary regenerative air preheater gas seal special sealing brush. BACKGROUND

[0002] Rotary regenerative air preheater as a kind of high efficiency heat exchange equipment, is widely used in industrial production, especially in the occasion needing to recover waste gas heat energy. Its main function is to carry out heat exchange through rotor component under high temperature condition, improves the preheating temperature of air, to reduce energy consumption. In the operation process of rotary regenerative air preheater, the air tightness between rotor component and sealing surface is particularly crucial, if sealing performance is not good, it will lead to heat energy leakage, equipment efficiency drops, even occurs security risk. Therefore, guarantee the air tightness of rotary regenerative air preheater is the core problem of improving its operating efficiency and safety.

[0003] Traditional sealing device adopts rubber sealing strip or metal sealing ring, but these sealing modes are prone to aging, wear or deformation under the condition of high temperature, high speed and long time operation, lead to sealing effect gradually drops. And in rotary regenerative air preheater, especially in high temperature environment, existing sealing material is difficult to meet the demand of long-term stable work. In order to improve sealing performance and prolong the service life of equipment, develop a kind of high wear resistance, high temperature resistance and can adapt to the sealing brush of equipment rotation becomes the technical problem to be solved urgently. UTILITY MODEL CONTENT

[0004] In view of the above insufficient in prior art, the utility model aims at providing a kind of sealing brush with good high temperature resistance, wear resistance, effectively improve sealing effect.

[0005] The utility model discloses a special sealing brush for rotary heat accumulating type air preheater gas seal, which realizes the above-mentioned technical scheme and purposes, and comprises a rotor component, a first gland, a brush handle, a second gland, a first steel wire rope, a second steel wire rope, a thin plate and a flat steel.

[0006] In the above technical scheme, the rotor component, the first gland and the brush handle are respectively provided with first installation holes, and the countersunk head screws are sequentially threaded through the first installation holes and are threadedly connected with the screwed nuts.

[0007] The outermost side of the flat steel is provided with a pressing plate, the pressing plate, the flat steel, the brush handle and the second gland are respectively provided with second installation holes, and the screw rods are sequentially threaded through the second installation holes and are threadedly connected with the fastening nuts.

[0008] In the technical scheme, the first steel wire rope and the second steel wire rope are provided with three or more layers, and the first steel wire rope and the second steel wire rope are made of stainless steel.

[0009] In the technical scheme, each group of the thin plates is composed of two or more layers of stainless steel sheets, the number of groups of the thin plates is one more than the number of groups of the flat steels, the thin plates and the flat steels are provided with three or more layers, and are arranged at intervals.

[0010] In the technical scheme, the brush handle is a female assembly, and after being combined with other components into a whole, the cross-sectional shape of the brush handle is Y-shaped.

[0011] In the technical scheme, the lower segment and the upper segment of the brush handle are straight edges, the brush handle located at the lower segment is provided with two rows of long circular holes and one row of circular holes along the length direction, and the long circular holes are first mounting holes; the middle segment of the brush handle is bent to one side to form a 45° angle, and the brush handle located at the upper segment is provided with one row of circular through holes along the length direction, and the original through holes are second mounting holes, which are used for relatively fixing the brush handle.

[0012] The utility model discloses the beneficial effect:

[0013] 1. Significantly improve the sealing effect: the traditional rubber sealing strip or metal sealing ring is easy to age, deform or wear under high temperature and high speed operation conditions, resulting in a decline in sealing effect. The combination structure of steel wire rope, thin plate and flat steel can work stably in a high temperature environment and continuously maintain excellent sealing performance, effectively avoiding heat leakage and equipment efficiency decline.

[0014] 2. Excellent high temperature resistance and wear resistance: the stainless steel material steel wire rope and thin plate used in the sealing brush have good high temperature resistance and wear resistance, and can maintain stable sealing effect for a long time under high temperature and high load conditions of the rotary regenerative air preheater, thereby improving the operation safety and reliability of the equipment.

[0015] 3. Adapt to equipment rotation and maintain stable sealing: the sealing brush design has good flexibility and adaptability, can freely adjust the position with the rotation of the rotary regenerative air preheater rotor component, ensure that the brush and the sealing surface always maintain good contact, realize continuous and stable sealing effect, and avoid the incomplete sealing problem that may occur in the rotation process of the traditional sealing method.

[0016] 4. Prolong the service life of the equipment: by improving the sealing effect and reducing heat leakage, the utility model effectively reduces the energy consumption of the equipment, reduces the load of the equipment, reduces the failure caused by poor sealing, thereby prolongs the service life of the rotary regenerative air preheater, and reduces the maintenance and replacement cost of the equipment.

[0017] 5, simple structure, easy to maintain: the structure design of the sealing brush is simple, the components are fixed through screws and fasteners, convenient to install and disassemble, easy to maintain and replace, reduces the equipment downtime, improves the production efficiency.

[0018] In summary, the utility model provides a kind of rotary regenerative air preheater gas seal special sealing brush, adopt the structure design combined with steel wire rope and sheet, flat steel etc., with good high temperature resistance, wear resistance and flexible adaptability, can be long time stable operation in high temperature high load working environment, effectively improve sealing effect, prolong equipment service life, ensure the efficient, safe operation of rotary regenerative air preheater. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view structural schematic drawing of the utility model;

[0020] Figure 2 It is the front view structural schematic drawing of the utility model; Figure 1 It is the section structure schematic drawing of A-A place in the utility model;

[0021] Figure 3 It is the section structure schematic drawing of the utility model brush handle;

[0022] Figure 4 It is the front view structural schematic drawing of the first gland of the utility model;

[0023] Figure 5 It is the front view structural schematic drawing of the second gland of the utility model.

[0024] In the drawing: 1 rotor component, 2 first gland, 3 brush handle, 4 second gland, 5 first steel wire rope, 6 second steel wire rope, 7 sheet, 8 flat steel, 9 pressing plate, 10 first installation slot, 11 second installation slot, 12 sealing surface. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0026] Please refer to Figures 1-5A kind of rotary regenerative air preheater gas seal special sealing brush, including rotor component 1, first gland 2, brush handle 3, second gland 4, first steel wire rope 5, second steel wire rope 6, sheet 7, flat steel 8, one side of first gland 2 is fixedly connected with rotor component 1, first installation groove 10 is set up in the other side of first gland 2, a plurality of first steel wire rope 5 is fixedly connected in first installation groove 10, the first brush hair is formed by the mutual composition after the one end of first steel wire rope 5 passes out first installation groove 10, the first brush hair is contacted with sealing surface 12, the upper end one side of brush handle 3 is fixedly connected with a plurality of flat steel 8 and sheet 7, sheet 7 and flat steel 8 are stacked in turn, the brush strip is formed by the mutual composition after sheet 7 one side extends out flat steel 8, the brush strip is contacted with sealing surface 12, second gland 4 is fixedly connected on the other side of the upper end of brush handle 3, second installation groove 11 is set up in the second gland 4 located in the side of brush handle 3, a plurality of second steel wire rope 6 is fixedly connected in second installation groove 11, the second brush hair is formed by the mutual composition after the one end of second steel wire rope 6 passes out second installation groove 11, the second brush hair is also contacted with sealing surface 12, wherein the brush strip is located between the first brush hair and the second brush hair, in the utility model, rotor component 1 is the core component of rotary regenerative air preheater, cooperates with gas seal brush, its function is to drive the movement of entire sealing brush system, guarantees the contact between brush hair and sealing surface 12, first installation groove 10 and second installation groove 11 are set up in first gland 2 and second gland 4 respectively, are used to be responsible for the structure of the structure of steel wire rope and brush hair, ensure that sealing brush can work stably, brush handle 3 is the support component of sealing brush, is fixed between first gland 2 and second gland 4, guarantees the accurate positioning of brush hair, the middle section of brush handle 3 is bent outwards into 45 °, makes sealing brush and sealing surface 12 contact at angle, when rotor component 1 rotates, allows sealing brush and sealing surface 12 to slide relative, while ensuring the sealing effect of sealing brush and sealing surface 12, the end of first steel wire rope 5 and second steel wire rope 6 constitutes brush hair part, and its steel wire rope has good wear resistance and high temperature resistance, so that sealing brush can work continuously in the high temperature environment of rotary regenerative air preheater, sheet 7 and flat steel 8 are stacked in turn, and constitute brush strip part, wherein flat steel 8 is used to evenly space adjacent sheet 7, so that the brush strip formed by the side of sheet 7 contacts with sealing surface 12, enhances the sealing effect of sealing brush, sheet 7 is composed of stainless steel sheet, and the flexibility and sealing performance of brush strip are enhanced.

[0027] In an embodiment of the utility model, first installation hole is equipped with respectively on rotor component 1, first gland 2, brush handle 3, and the first installation hole is passed through by sink head screw in proper order and is connected with screw nut thread, and the relative fixation between rotor component 1, first gland 2 and brush handle 3 can be realized by sink head screw and screw nut, the most outer layer side of flat steel 8 is provided with pressing plate 9, second installation hole is equipped with respectively on pressing plate 9, flat steel 8, brush handle 3, second gland 4, and the second installation hole is passed through by screw in proper order and is connected with fastening nut thread, and the relative fixation between pressing plate 9, flat steel 8, brush handle 3 and second gland 4 can be realized by screw and fastening nut.

[0028] In an embodiment of the utility model, first steel wire rope 5 and second steel wire rope 6 are all provided with more than three layers, and first steel wire rope 5 and second steel wire rope 6 are all stainless steel material, for providing enough strength and high temperature resistance, and suitable for the high temperature environment of rotary regenerative air preheater.

[0029] In an embodiment of the utility model, each group of thin plate 7 is composed of more than two layers of stainless steel sheet, the group number of thin plate 7 is more than the group number of flat steel 8 by one, thin plate 7 and flat steel 8 are all provided with more than three layers and are arranged at intervals, in the working process of sealing brush, thin plate 7 composed of stainless steel sheet can flexibly bend, adapt to the rotation of equipment, and ensure that sealing surface 12 is fully covered.

[0030] In an embodiment of the utility model, brush handle 3 is a female assembly, and after being combined with other components into a whole, the cross-sectional shape of the brush handle 3 is Y-shaped, that is, the upper end of the brush handle 3 is bent to one side, which can provide a certain pressure for the thin plate 7 and the steel wire rope, and ensure that the thin plate 7 and the steel wire rope can be in close contact with the sealing surface 12.

[0031] In an embodiment of the utility model, the lower segment and the upper segment of the brush handle 3 are both straight edges, two rows of long circular holes and one row of circular holes are drilled along the length direction of the lower segment of the brush handle 3, and the long circular holes are the first installation holes; the middle segment of the brush handle 3 is bent to one side to form a 45° angle, and one row of circular through holes is drilled along the length direction of the upper segment of the brush handle 3, and the original through holes are the second installation holes, which are used to fix the brush handle 3 relatively.

[0032] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0033] Furthermore, it should be understood that although the description is made according to the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and the person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the person skilled in the art can understand.

Claims

1. A rotary regenerative air preheater air seal dedicated seal brush characterized by: The utility model relates to a brush head of rotary machine, including rotor part (1), first gland (2), brush handle (3), second gland (4), first steel wire rope (5), second steel wire rope (6), sheet (7), flat steel (8), one side of first gland (2) is fixedly connected with rotor part (1), the other side of first gland (2) is equipped with first installation groove (10), a plurality of first steel wire rope (5) are fixedly connected in first installation groove (10), the one end of first steel wire rope (5) is out of first installation groove (10) after mutual composition is first brush, and this first brush is contacted with sealing surface (12), the one side of the notch of first gland (2) is fixedly connected with brush handle (3), the upper end one side of brush handle (3) is fixedly connected with a plurality of flat steel (8) and sheet (7), sheet (7) and flat steel (8) are stacked in turn, the one side of sheet (7) extends out of flat steel (8) after mutual formation is multilayer brush strip, and this brush strip is contacted with sealing surface (12), the upper end other side of brush handle (3) is fixedly connected with second gland (4), the second gland (4) of one side of brush handle (3) is equipped with second installation groove (11), a plurality of second steel wire rope (6) are fixedly connected in second installation groove (11), the one end of second steel wire rope (6) is out of second installation groove (11) after mutual composition is second brush, and this second brush is also contacted with sealing surface (12), wherein the brush strip is between first brush and second brush.

2. A rotary regenerative air preheater gas seal special seal brush according to claim 1, characterized in that: First installation hole is arranged on rotor part (1), first gland (2) and brush handle (3) respectively, and the threaded connection of sink head screw and screw nut is formed after the first installation hole is sequentially penetrated by sink head screw; The outermost side of flat steel (8) is provided with pressing plate (9), and second installation hole is arranged on pressing plate (9), flat steel (8), brush handle (3) and second gland (4) respectively, and the threaded connection of screw rod and fastening nut is formed after the second installation hole is sequentially penetrated by screw rod.

3. A rotary regenerative air preheater gas seal special seal brush as claimed in claim 1, wherein: First steel wire rope (5) and second steel wire rope (6) are provided with more than three layers, and first steel wire rope (5) and second steel wire rope (6) are made of stainless steel.

4. A rotary regenerative air preheater gas seal special seal brush as claimed in claim 1, wherein: Each group of sheet (7) is composed of more than two layers of stainless steel sheets, the number of groups of sheet (7) is more than the number of groups of flat steel (8), sheet (7) and flat steel (8) are provided with more than three layers, and are arranged at intervals.

5. A rotary regenerative air preheater gas seal special seal brush as claimed in claim 1, wherein: The brush handle (3) is a female assembly, and the cross-sectional shape of the brush handle (3) is Y-shaped after being combined with other components into a whole.

6. A rotary regenerative air preheater gas seal special seal brush as claimed in claim 1, wherein: The lower section and the upper section of the brush handle (3) are straight edges, the brush handle (3) located in the lower section is drilled with two rows of long circular holes and one row of circular holes along the length direction, the brush handle (3) located in the middle section is bent to one side to form a 45° angle, and the brush handle (3) located in the upper section is drilled with one row of circular through holes along the length direction.

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