CN210400137U - Sealing device for glass tube heat exchanger - Google Patents

Sealing device for glass tube heat exchanger Download PDF

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Publication number
CN210400137U
CN210400137U CN201921380908.4U CN201921380908U CN210400137U CN 210400137 U CN210400137 U CN 210400137U CN 201921380908 U CN201921380908 U CN 201921380908U CN 210400137 U CN210400137 U CN 210400137U
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China
Prior art keywords
sealing
ring
tube
glass
heat exchange
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Active
Application number
CN201921380908.4U
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Chinese (zh)
Inventor
齐元鑫
赵昕盟
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Shandong Wintech Technology Co ltd
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Shandong Wintech Technology Co ltd
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Priority to CN201921380908.4U priority Critical patent/CN210400137U/en
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Abstract

The utility model relates to a sealing device of a glass tube heat exchanger, belonging to the technical field of glass tube heat exchangers; the glass heat exchange tube comprises a tube plate, a pressing ring, a sealing ring and a sealing gasket, wherein a step sealing groove is formed in the tube plate and comprises a first step and a second step, the glass heat exchange tube penetrates through the step sealing groove, the diameter of the first step is the same as the outer diameter of the glass heat exchange tube, the sealing ring, the pressing ring and the pressing ring are sequentially arranged in the second step from bottom to top, and the pressing ring and the tube plate are fixed; the glass heat exchange tube is characterized in that a sealing structure is adopted between the glass heat exchange tube and the tube plate, a step-shaped sealing groove is formed in the tube plate, a sealing gasket and a sealing ring are arranged in the step-shaped sealing groove and used for sealing and fixing the glass heat exchange tube, and the sealing gasket and the sealing ring are pressed by the pressing ring and welded with the tube plate for sealing.

Description

Sealing device for glass tube heat exchanger
Technical Field
The utility model relates to a glass tube heat exchanger sealing device belongs to glass tube heat exchanger technical field.
Background
The prior sealing structure of the glass tube heat exchanger has the following defects in use: (1) the glass tube heat exchanger is connected with the tube plate, and the glass tube and the tube plate cannot be welded, because only sealing connection is adopted, the sealing property is poor, and the stability is poor; (2) most industrial flue gas emission temperatures are 100-160 ℃, if the industrial flue gas is directly emitted, a large amount of disposable energy is wasted, but because the flue gas contains a large amount of corrosion components such as NOx, SOx and the like, water is condensed at low temperature and the corrosion components are combined to generate various corrosion components to corrode equipment, so that the equipment of various flue gas waste heat recovery systems requires the flue gas temperature to be more than 200 ℃, and the limitation is very large; (3) the glass tube and the tube plate are directly connected together, the sealing strength is low, the glass tube is easy to damage, the heat transfer efficiency is affected, and the cost is increased. Therefore, the glass tube sealing structure which is suitable for low-temperature flue gas recovery, corrosion-resistant and good in sealing effect is provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a glass tube heat exchanger sealing device is fit for low temperature flue gas waste heat recovery, and is sealed effectual, simple structure, difficult production elastic deformation.
Glass manages heat exchanger sealing device, including tube sheet, clamping ring, sealing ring and sealed the pad, it has the ladder seal groove to open on the tube sheet, and the ladder seal groove includes first ladder and second ladder, and the glass heat exchange tube passes the ladder seal groove, and first ladder diameter is the same with glass heat exchange tube external diameter, from up being sealed pad, sealing ring and clamping ring down in proper order in the second ladder, and clamping ring and tube sheet are fixed.
The glass heat exchange tube is characterized in that a sealing structure is adopted between the glass heat exchange tube and the tube plate, a step-shaped sealing groove is formed in the tube plate, a sealing gasket and a sealing ring are arranged in the step-shaped sealing groove and used for sealing and fixing the glass heat exchange tube, and the sealing gasket and the sealing ring are pressed by the pressing ring for sealing.
Preferably, the pressing ring and the tube plate are welded and sealed to form a third sealing structure, so that the glass tube of the glass heat exchange tube is further fixed and plays a role in sealing.
Preferably, the inner diameter of the sealing gasket is the same as the outer diameter of the glass heat exchange tube, and the outer diameter is the same as the diameter of the second step. The sealing gasket is filled in the second step, a first sealing structure is formed among the sealing gasket, the glass heat exchange tube and the tube plate, and the sealing effect is good.
Preferably, the inner diameter of the sealing ring is the same as the outer diameter of the glass heat exchange tube, and the outer diameter is the same as the diameter of the second step. The sealing ring is tightly combined with the first sealing structure in the stepped sealing groove to form a second sealing structure, so that the sealing effect is strengthened.
Preferably, the inner diameter of the pressing ring is 3-5mm larger than the outer diameter of the glass heat exchange tube, and the outer diameter of the pressing ring is the same as the diameter of the second step. The compression ring compresses the sealing gasket and the sealing ring to form a third sealing structure, so that the sealing effect is further reinforced.
Preferably, the press ring is of a metal structure, so that the press ring can be welded and sealed with the tube plate conveniently to form a third sealing structure.
Preferably, the height of the sealing gasket is 4-6mm, further enhancing the sealing effect.
Preferably, the height of the sealing ring is 3-5mm, further enhancing the sealing effect.
Preferably, the sealing ring and the sealing gasket are non-metallic ring gaskets, and are made of one or more of polytetrafluoroethylene materials, flexible graphite materials, silicon rubber and fluororubber. The sealing structure is convenient to seal, and is tightly combined with the first sealing structure, and the pressing ring compresses the sealing gasket and the sealing ring, so that elastic deformation is not easy to generate, and the service life is long.
Preferably, the pressing ring extends out of the tube plate by 5-10mm, the part of the extending tube plate is welded with the tube plate to form a third sealing structure, elastic deformation is not easy to generate, and the service life is long.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. simple structure, simple and convenient processing and manufacturing and low cost.
2. Multiple sealing and reinforcement are realized, leakage is not easy to occur, and the heat exchange efficiency is improved.
3. The problem of glass heat exchange tube and tube sheet sealing connection insecure is solved, play the guard action to glass heat exchange tube.
4. Can be used for recovering the waste heat of low-temperature flue gas, and has corrosion resistance and strong sealing property.
5. The service life is long.
6. The glass heat exchange tube is easy to replace.
Drawings
Fig. 1 is a schematic structural view of a sealing device of a glass tube heat exchanger according to the present invention;
fig. 2 is a schematic structural view of the stepped seal groove of the present invention;
fig. 3 is a schematic view of the combined structure of the sealing device of the glass tube heat exchanger of the present invention.
In the figure: 1. a tube sheet; 2. pressing a ring; 3. a seal ring; 4. a gasket; 5. a stepped seal groove; 501. a first step; 502. a second step; 6. a glass heat exchange tube; 7. and (7) welding seams.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
example 1
As shown in fig. 1-2, glass tube heat exchanger sealing device, be applied to glass heat exchange tube 6, including tube sheet 1, clamping ring 2, sealing ring 3 and sealed 4 of filling up, it has ladder seal groove 5 to open on the tube sheet 1, ladder seal groove 5 includes first ladder 501 and second ladder 502, and glass heat exchange tube 6 passes ladder seal groove 5, and first ladder 501 diameter is the same with 6 external diameters of glass heat exchange tube, from up being sealed 4, sealing ring 3 and clamping ring 2 of filling up in proper order down in the second ladder 502, clamping ring 2 and tube sheet 1 are fixed.
Optionally, the compression ring 2 is of a metal structure, and the thickness of the compression ring 2 is 3-5mm, specifically 3 mm; the height of the compression ring 2 is 20-30mm, specifically 25 mm; the extension of the press ring 2 out of the tube plate 1 is 5-10mm, specifically 5mm, and the extension part of the press ring 2 is welded and sealed with the tube plate 1. The inner diameter of the compression ring 2 is 3-5mm larger than the outer diameter of the glass heat exchange tube 6, and can be 5mm specifically; the outer diameter is the same as the diameter of the second step 502, and the diameter of the second step 502 is 11-13mm wider, specifically 11mm wider than the diameter of the first step 501. The material of the pressure ring 2 can be carbon steel or stainless steel, and the material of the tube plate 1 can be carbon steel or stainless steel. The surface of the tube plate 1 is sprayed with anticorrosive paint or is made of stainless steel, so that the tube plate is corrosion-resistant.
The inner diameter of the sealing gasket 4 is the same as the outer diameter of the glass heat exchange tube 6, the outer diameter of the sealing gasket is the same as the diameter of the second step 502, and the height of the sealing gasket can be 5 mm. The inner diameter of the sealing ring 3 is the same as the outer diameter of the glass heat exchange tube 6, the outer diameter of the sealing ring is the same as the diameter of the second step 502, and the height of the sealing ring can be 3 mm. The sealing ring 3 and the sealing gasket 4 are non-metal ring gaskets, are made of one or more of polytetrafluoroethylene materials, flexible graphite materials, silicon rubber and fluororubber, and have long service life. The seal ring 3 has a higher hardness than the seal 4.
The bottom of clamping ring 2, sealing ring 3, sealed 4 and second ladder 502 forms hard soft or hard structure, and the power that sealing ring 3 bore clamping ring 2 transmits sealed 4 to, and sealed 4 is compressed tightly to warp and forms sealedly with ladder seal groove 5 and glass heat exchange tube 6.
Glass tubular heat exchanger sealing device's sealed process do:
firstly, a glass heat exchange tube 6 penetrates through a step seal groove 5 on a tube plate 1, after the glass heat exchange tube 6 penetrates, a sealing gasket 4 is plugged into a second step 502 of the step seal groove 5, and a first seal structure is formed among the sealing gasket 4, the glass heat exchange tube 6 and the tube plate 1. And then the sealing ring 3 is plugged, and the sealing ring 3 is tightly combined with the first sealing structure to form a second sealing structure. And finally, the pressing ring 2 is plugged, the pressing ring 2 compresses the sealing gasket 4 and the sealing ring 3, and the part extending out of the tube plate 1 is welded with the tube plate 1 to form a third sealing structure. As shown in fig. 3, one end of the glass heat exchange tube 6 and the tube plate 1 form a sealing structure with good sealing effect through the sealing gasket 4, the sealing ring 3, the pressing ring 2 and the welding line 7, and the other end of the glass heat exchange tube 6 also forms the same sealing structure, so that sealing structures with good sealing performance are formed at two ends of the glass heat exchange tube 6.
The stepped sealing groove 5 is formed in the tube plate 1, and a multiple sealing and reinforcing mode is adopted, so that the sealing performance between the tube plate 1 and the glass heat exchange tube 6 is improved, and the smoke leakage and the heat loss are reduced; and simple structure is difficult for producing elastic deformation, long service life, easily changes glass heat exchange tube 6.
The above description is only a preferred embodiment of the present invention, and is not limited to the present invention, and especially, the data range disclosed by the present invention is an optional range, and other ranges can be selected; all equivalent modifications, equivalent substitutions, improvements and the like within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (10)

1. The utility model provides a glass manages heat exchanger sealing device, is applied to glass heat exchange tube (6), its characterized in that: including tube sheet (1), clamping ring (2), sealing ring (3) and sealed pad (4), it has ladder seal groove (5) to open on tube sheet (1), ladder seal groove (5) are including first ladder (501) and second ladder (502), ladder seal groove (5) are passed in glass heat exchange tube (6), first ladder (501) diameter is the same with glass heat exchange tube (6) external diameter, from up sealing pad (4), sealing ring (3) and clamping ring (2) down in proper order in second ladder (502), clamping ring (2) and tube sheet (1) are fixed.
2. The glass tube heat exchanger sealing device according to claim 1, wherein: the pressure ring (2) is welded and sealed with the tube plate (1).
3. The glass tube heat exchanger sealing device according to claim 1 or 2, wherein: the inner diameter of the sealing gasket (4) is the same as the outer diameter of the glass heat exchange tube (6), and the outer diameter of the sealing gasket is the same as the diameter of the second step (502).
4. The glass tube heat exchanger sealing device according to claim 3, wherein: the inner diameter of the sealing ring (3) is the same as the outer diameter of the glass heat exchange tube (6), and the outer diameter of the sealing ring is the same as the diameter of the second step (502).
5. The glass tube heat exchanger sealing device according to claim 4, wherein: the inner diameter of the pressure ring (2) is 3-5mm larger than the outer diameter of the glass heat exchange tube (6), and the outer diameter of the pressure ring is the same as the diameter of the second step (502).
6. The sealing device for a glass tube heat exchanger according to claim 1 or 5, wherein: the press ring (2) is of a metal structure.
7. The sealing device for a glass tube heat exchanger according to claim 1 or 5, wherein: the height of the sealing gasket (4) is 4-6 mm.
8. The sealing device for a glass tube heat exchanger according to claim 1 or 5, wherein: the height of the sealing ring (3) is 3-5 mm.
9. The sealing device for a glass tube heat exchanger according to claim 1 or 5, wherein: the sealing ring (3) and the sealing gasket (4) are non-metal ring gaskets and are made of one or more of polytetrafluoroethylene materials, flexible graphite materials, silicon rubber and fluororubber.
10. The sealing device for a glass tube heat exchanger according to claim 1 or 5, wherein: the press ring (2) extends out of the tube plate (1) by 5-10 mm.
CN201921380908.4U 2019-08-23 2019-08-23 Sealing device for glass tube heat exchanger Active CN210400137U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921380908.4U CN210400137U (en) 2019-08-23 2019-08-23 Sealing device for glass tube heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921380908.4U CN210400137U (en) 2019-08-23 2019-08-23 Sealing device for glass tube heat exchanger

Publications (1)

Publication Number Publication Date
CN210400137U true CN210400137U (en) 2020-04-24

Family

ID=70338113

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921380908.4U Active CN210400137U (en) 2019-08-23 2019-08-23 Sealing device for glass tube heat exchanger

Country Status (1)

Country Link
CN (1) CN210400137U (en)

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