CN205505838U - Connection structure of shell and tube fluoroplastics heat exchanger tube sheet - Google Patents

Connection structure of shell and tube fluoroplastics heat exchanger tube sheet Download PDF

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Publication number
CN205505838U
CN205505838U CN201620234799.5U CN201620234799U CN205505838U CN 205505838 U CN205505838 U CN 205505838U CN 201620234799 U CN201620234799 U CN 201620234799U CN 205505838 U CN205505838 U CN 205505838U
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China
Prior art keywords
tube sheet
tube
perforated plate
heat exchanger
fluorubber
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Active
Application number
CN201620234799.5U
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Chinese (zh)
Inventor
刘波
彭期耀
廖帆
周大春
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Rock Energy & Environment Engineering Co Ltd
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Rock Energy & Environment Engineering Co Ltd
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Priority to CN201620234799.5U priority Critical patent/CN205505838U/en
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Publication of CN205505838U publication Critical patent/CN205505838U/en
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Abstract

The utility model discloses a connection structure of shell and tube fluoroplastics heat exchanger tube sheet, including tube sheet, roof head and heat exchanger roof, the tube sheet is divided into tube sheet and lower tube sheet, go up the tube sheet and be equipped with two blocks of fluorubber boards down between the tube sheet, the fluorubber board is fixed respectively go up the tube sheet with down on the tube sheet, upward be equipped with fluoroplastics tube bank hole, countersunk head screw hole and the bolt hole of one -to -one on tube sheet, lower tube sheet and the fluorubber board respectively, fluoroplastics tube bank court the one end of fluorubber board is to the flanging in order to form the shirt rim and to paste on the fluoroplastics board, go up the tube sheet with the inseparable fixed connection of tube sheet forms tube sheet group down. Owing to adopt the mode that compresses tightly the fluoroplastics tube bank between two blocks of fluoroplastics boards, improved the leakproofness that the tube sheet is connected, each other do not influence between the single fluoroplastics tube bank, can also guarantee continual and steady, the effectual work of heat exchanger under the condition that improves installation effectiveness and maintenance efficiency.

Description

A kind of attachment structure of shell and tube teflon heat exchanger tube sheet
Technical field
This utility model is used for shell and tube teflon heat exchanger, is specifically related to a kind of attachment structure for shell and tube teflon heat exchanger tube sheet.
Background technology
Now with country for the call of energy-saving and emission-reduction, shell and tube teflon heat exchanger is more and more widely used in all trades and professions.Due to metallic recuperator, by cold end corrosion, fouling, service life is short etc., factor is affected, and teflon heat exchanger arises at the historic moment, and it can solve problem above.
Due to shell and tube teflon heat exchanger tube sheet joint many employings overall thermal fusion welding, this overall thermal fusion welding level professional technology at a relatively high for the requirement installing processing technology, for installment work personnel requires the highest.This Type of Welding is limited by tube sheet size, and owing to overall thermal fusion welding needs to ensure welding tube sheet homogeneous temperature everywhere, this results in tube sheet size and is restricted, and tube sheet is heated the most greatly uneven, welds bad.Fluoroplastics for enormous amount are restrained, if the situation that welding is bad occurs in a certain fluorine plastic tube in welding process, this tube sheet is accomplished by again welding, and not only wastes material, more loses time and manpower.In actual motion, if indivedual fluorine plastic tube is broken, the fluorine plastic tube of this overall thermal fusion welding form cannot be replaced, and can only block or use other the most loaded down with trivial details modes to remedy.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, the attachment structure of a kind of shell and tube teflon heat exchanger tube sheet is provided, owing to using the mode compressing fluoroplastics tube bank between two blocks of fluorubber plates, improve the sealing that tube sheet connects, it is independent of each other between the tube bank of single fluoroplastics, in the case of improving installation effectiveness and overhaul efficiency, also ensure that heat exchanger continually and steadily, effectively work, simultaneously to installing, the professional technique of maintainer requires the most much lower.
nullFor reaching above-mentioned purpose,The technical solution adopted in the utility model is as follows: the attachment structure of a kind of shell and tube teflon heat exchanger tube sheet,Including tube sheet、Top board end socket and heat exchanger top board,Described tube sheet is divided into upper perforated plate and lower perforated plate,Two blocks of fluorubber plates it are provided with between described upper perforated plate and lower perforated plate,Described fluorubber plate is separately fixed on described upper perforated plate and described lower perforated plate,Described upper perforated plate、It is respectively equipped with fluorine plastic tube beam hole one to one on lower perforated plate and fluorubber plate、Countersunk screw hole and bolt hole,The fluorine plastic tube beam hole of described lower perforated plate is restrained built with fluoroplastics,The tube bank of described fluoroplastics and is attached on fluorubber plate towards one end outward flanging of described fluorubber plate with formation shirt rim,Described upper perforated plate fits with the one side of fluorubber plate with described lower perforated plate with the one side of fluorubber plate,And it is tightly fastened connection with sunk screw,Form tube sheet group.
Further, described tube sheet group is fixed on heat exchanger top board together with top board end socket.
Further, described tube sheet group and described top board end socket are connected by studs and cover type nut are fixing with described heat exchanger top board.
Setting due to said structure, fluoroplastic plate is separately fixed on upper perforated plate and lower perforated plate, then fluoroplastics are restrained through lower perforated plate and fluorubber plate, by special frock, fluorine plastic tube is carried out flange to form shirt rim and to be attached on fluorubber plate again, compress with the one side of fluorubber plate with lower perforated plate with the one side of fluorubber plate with upper perforated plate again, finally with sunk screw, two pieces of tube sheets are fixed locked.By the way of the shirt rim that upper lower perforated plate compresses fluoroplastics tube bank, on the one hand fluoroplastics tube bank can be securely seated between on fluorubber plate, fluoroplastics tube bank is made to be not susceptible to mobile, on the other hand can ensure that lower perforated plate junction has enough sealings, the water in entrance fluorine plastic tube beam hole is made to can only flow in hole, without overflowing outside tube sheet.It addition, by top board end socket and tube sheet group being fixed on heat exchanger top board with studs and cover type nut, make the position firm stable of tube sheet, be not likely to produce loosening.
Further, for ensureing the sealing that tube sheet connects, it is provided with O-ring groove between described heat exchanger top board and described tube sheet group, also is provided with O-ring groove between described top board end socket and described tube sheet group, fluoroplastics O is installed in described O-ring groove.By the sealing of fluoroplastics O, may further ensure that the water in tube sheet and flue gas will not overflow outside tube sheet.
Further, described bolt hole a size of Φ 8-30mm, described fluorine plastic tube beam hole a size of Φ 4-20mm.
In another feasible scheme of the present utility model, being provided with one block of fluorubber plate between described upper perforated plate and described lower perforated plate, the tube bank of described fluoroplastics is pressed on described lower perforated plate together with described upper perforated plate and described lower perforated plate by described fluorubber plate.In other words, described fluorubber plate only has one piece, the most also can reach above-mentioned same effect.
In this utility model, when the profile of upper perforated plate, lower perforated plate and fluorubber plate is square or is circular, above-mentioned attachment structure is equally applicable.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: owing to using the mode compressing fluoroplastics tube bank between two blocks of fluorubber plates, improve the sealing that tube sheet connects, it is independent of each other between the tube bank of single fluoroplastics, in the case of improving installation effectiveness and overhaul efficiency, also ensure that heat exchanger continually and steadily, effectively work, simultaneously to installing, the professional technique of maintainer requires also much lower.
Accompanying drawing explanation
Fig. 1 is a kind of upper perforated plate front view of the present utility model;
Fig. 2 is upper perforated plate top view of the present utility model;
Fig. 3 is a kind of lower perforated plate front view of the present utility model;
Fig. 4 is lower perforated plate top view of the present utility model;
Fig. 5 is a kind of fluorubber plate front view of the present utility model;
Fig. 6 is fluorubber plate top view of the present utility model;
Fig. 7 is the general assembly drawing of attachment structure of the present utility model;
Fig. 8 is the structural representation of part A in Fig. 7.
Labelling in figure: 1 is upper perforated plate, 2 is fluorubber plate, and 3 is lower perforated plate, 4 restrain for fluoroplastics, 5 is heat exchanger top board, and 6 is sunk screw, and 7 is top board end socket, 8 is studs and cover type nut, 9 is fluororubber O-type ring, and 101 is fluorine plastic tube beam hole, and 102 is countersunk screw hole, 103 is bolt hole, and 104 is O-ring groove.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Embodiment one
nullAs shown in Figures 1 to 8,A kind of attachment structure of shell and tube teflon heat exchanger tube sheet,Including tube sheet、Top board end socket 7 and heat exchanger top board 5,Described tube sheet is divided into upper perforated plate 1 and lower perforated plate 3,Two blocks of fluorubber plates 2 it are provided with between described upper perforated plate 1 and lower perforated plate 3,Described fluorubber plate 2 is separately fixed on described upper perforated plate 1 and described lower perforated plate 3,Described upper perforated plate 1、Fluorine plastic tube beam hole 101 one to one it is respectively equipped with on lower perforated plate 3 and fluorubber plate 2、Countersunk screw hole 102 and bolt hole 103,The fluorine plastic tube beam hole 101 of described lower perforated plate 3 restrains 4 built with fluoroplastics,Described fluoroplastics tube bank 4 and is attached on fluorubber plate 2 towards one end outward flanging of described fluorubber plate 2 with formation shirt rim,Described upper perforated plate 1 fits with the one side of fluorubber 2 with described lower perforated plate 3 with the one side of fluorubber plate 2,And it is tightly fastened connection with sunk screw,Form tube sheet group;Described tube sheet group and described top board end socket 7 are fixed with described heat exchanger top board 5 be connected by studs and cover type nuts 8.
In the present embodiment, fluorubber plate 2 is separately fixed on upper perforated plate 1 and lower perforated plate 3, then by fluoroplastics tube bank 4 through lower perforated plate 3 and fluorubber plate 2, by special frock, fluoroplastics tube bank 4 is carried out flange to form shirt rim and to be attached on fluorubber plate 2 again, compress with the one side of fluorubber plate 2 with lower perforated plate 3 with the one side of fluorubber plate 2 with upper perforated plate 1 again, finally with sunk screw, two pieces of tube sheets are fixed locked.By the way of the shirt rim that upper lower perforated plate compresses fluoroplastics tube bank 4, on the one hand fluoroplastics tube bank 4 can be securely seated between on fluorubber plate 2, fluoroplastics tube bank 4 is made to be not susceptible to mobile, on the other hand can ensure that lower perforated plate junction has enough sealings, the water in entrance fluorine plastic tube beam hole 101 is made to can only flow in hole, without overflowing outside tube sheet.It addition, by top board end socket 7 and tube sheet group being fixed on heat exchanger top board 5 with studs and cover type nut 8, make the position firm stable of tube sheet, be not likely to produce loosening.
In the present embodiment, for ensureing the sealing that tube sheet connects, it is provided with O-ring groove 104 between described heat exchanger top board 5 and described tube sheet group, also is provided with O-ring groove 104 between described top board end socket 7 and described tube sheet group, in described O-ring groove 104, fluoroplastics O 9 is installed.By the sealing of fluoroplastics O 9, may further ensure that the water in tube sheet and flue gas will not overflow outside tube sheet.
In the present embodiment, described bolt hole 103 a size of Φ 8-30mm(can be 8mm or 15mm or 30mm, this is mainly determined according to the size of tube sheet and fluorubber plate 2, when size is less, bolt hole 103 size selects smaller value, otherwise, select higher value), described fluorine plastic tube beam hole 101 a size of Φ 4-20mm(when fluoroplastics restrain 4 calibers be 4mm time, fluorine plastic tube beam hole 101 a size of 4mm+ fit-up gap α, when fluoroplastics restrain 4 calibers be 10mm time, fluorine plastic tube beam hole 101 a size of 10mm+ fit-up gap α, when fluoroplastics restrain 4 calibers be 20mm time, fluorine plastic tube beam hole 101 a size of 20mm+ fit-up gap α).
Embodiment two
This embodiment is identical with embodiment one, its difference is, described fluorubber plate only has one piece, can be fixed on upper perforated plate or lower perforated plate, in other words, fluoroplastics tube bank is only fixed together with upper perforated plate and lower perforated plate by one block of fluorubber plate, the most also can reach the effect of embodiment one, but, the stability relatively embodiment one of the sealing of tube sheet and fluoroplastics tube bank position is poor.
In sum; the profile of upper perforated plate 1, lower perforated plate 3 and fluoroplastic plate 2 that this utility model is previously mentioned is not limited in square; when the profile of upper perforated plate 1, lower perforated plate 3 and fluorubber plate 2 is circular; attachment structure of the present utility model is equally applicable; therefore the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.

Claims (7)

  1. null1. the attachment structure of a shell and tube teflon heat exchanger tube sheet,Including tube sheet、Top board end socket (7) and heat exchanger top board (5),It is characterized in that,Described tube sheet is divided into upper perforated plate (1) and lower perforated plate (3),Two pieces of fluorubber plates (2) it are provided with between described upper perforated plate (1) and lower perforated plate (3),Described fluorubber plate (2) is separately fixed on described upper perforated plate (1) and described lower perforated plate (3),Described upper perforated plate (1)、It is respectively equipped with fluorine plastic tube beam hole (101) one to one on lower perforated plate (3) and fluorubber plate (2)、Countersunk screw hole (102) and bolt hole (103),The fluorine plastic tube beam hole (101) of described lower perforated plate (3) restrains (4) built with fluoroplastics,Described fluoroplastics tube bank (4) and are attached on fluorubber plate (2) towards one end outward flanging of described fluorubber plate (2) with formation shirt rim,Described upper perforated plate (1) fits with the one side of fluorubber plate (2) with described lower perforated plate (3) with the one side of fluorubber plate (2),And it is tightly fastened connection with sunk screw,Form tube sheet group.
  2. The attachment structure of a kind of shell and tube teflon heat exchanger tube sheet the most as claimed in claim 1, it is characterised in that described tube sheet group is fixed on heat exchanger top board (5) together with top board end socket (7).
  3. The attachment structure of a kind of shell and tube teflon heat exchanger tube sheet the most as claimed in claim 2, it is characterised in that described tube sheet group and described top board end socket (7) are connected by studs and cover type nut (8) are fixing with described heat exchanger top board (5).
  4. 4. the attachment structure of a kind of shell and tube teflon heat exchanger tube sheet as described in one of claims 1 to 3, it is characterized in that, it is provided with O-ring groove (104) between described heat exchanger top board (5) and described tube sheet group, it also is provided with O-ring groove (104) between described top board end socket (7) and described tube sheet group, fluoroplastics O (9) is installed in described O-ring groove (104).
  5. The attachment structure of a kind of shell and tube teflon heat exchanger tube sheet the most as claimed in claim 1, it is characterised in that described bolt hole (103) a size of Φ 8-30mm, described fluorine plastic tube beam hole (101) a size of Φ 4-20mm.
  6. The attachment structure of a kind of shell and tube teflon heat exchanger tube sheet the most as claimed in claim 1, it is characterised in that the profile of described upper perforated plate (1), lower perforated plate (3) and fluorubber plate (2) is square or for circular.
  7. The attachment structure of a kind of shell and tube teflon heat exchanger tube sheet the most as claimed in claim 6, it is characterized in that, being provided with one piece of fluorubber plate (2) between described upper perforated plate (1) and described lower perforated plate (3), described fluoroplastics tube bank (4) are pressed on described lower perforated plate (3) together with described upper perforated plate (1) and described lower perforated plate (3) by described fluorubber plate (2).
CN201620234799.5U 2016-03-25 2016-03-25 Connection structure of shell and tube fluoroplastics heat exchanger tube sheet Active CN205505838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620234799.5U CN205505838U (en) 2016-03-25 2016-03-25 Connection structure of shell and tube fluoroplastics heat exchanger tube sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620234799.5U CN205505838U (en) 2016-03-25 2016-03-25 Connection structure of shell and tube fluoroplastics heat exchanger tube sheet

Publications (1)

Publication Number Publication Date
CN205505838U true CN205505838U (en) 2016-08-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109957816A (en) * 2017-12-26 2019-07-02 天水师范学院 A kind of the PE electrolytic cell and composite cover-plate of built-in heat-exchange system and exhaust system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109957816A (en) * 2017-12-26 2019-07-02 天水师范学院 A kind of the PE electrolytic cell and composite cover-plate of built-in heat-exchange system and exhaust system

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