CN201780037U - Sealing device for graphite heat exchange tube in graphite heat exchanger - Google Patents

Sealing device for graphite heat exchange tube in graphite heat exchanger Download PDF

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Publication number
CN201780037U
CN201780037U CN2010205125195U CN201020512519U CN201780037U CN 201780037 U CN201780037 U CN 201780037U CN 2010205125195 U CN2010205125195 U CN 2010205125195U CN 201020512519 U CN201020512519 U CN 201020512519U CN 201780037 U CN201780037 U CN 201780037U
Authority
CN
China
Prior art keywords
graphite heat
graphite
heat exchanger
sealing
exchange tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010205125195U
Other languages
Chinese (zh)
Inventor
张勇
贺同强
曲顺利
唐文骞
王效英
徐同福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNOOC Petrochemical Engineering Co Ltd
Original Assignee
CHINA NATIONAL OFFSHORE OIL SHANDONG CHEMICAL ENGINEERING Co Ltd
China National Offshore Oil Corp CNOOC
Offshore Oil Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHINA NATIONAL OFFSHORE OIL SHANDONG CHEMICAL ENGINEERING Co Ltd, China National Offshore Oil Corp CNOOC, Offshore Oil Engineering Co Ltd filed Critical CHINA NATIONAL OFFSHORE OIL SHANDONG CHEMICAL ENGINEERING Co Ltd
Priority to CN2010205125195U priority Critical patent/CN201780037U/en
Application granted granted Critical
Publication of CN201780037U publication Critical patent/CN201780037U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a sealing device for a graphite heat exchange tube in a graphite heat exchanger, which belongs to the field of sealing equipment, and structurally comprises a graphite heat exchange tube plate and the graphite heat exchange tube, wherein an O-shaped seal ring and a graphite gasket are sequentially mounted from inside to outside at the joint of the end of the graphite heat exchange tube and the graphite heat exchange tube plate, and a graphite compression nut is arranged outside the graphite gasket. Compared with the prior art, the sealing device for the graphite heat exchange tube in the graphite heat exchanger has the characteristics of reasonable design, good sealing property, long service life and low manufacturing cost, operates safely and is easy to dismount.

Description

The sealing device of graphite heat exchanger tube in a kind of graphite heat exchanger
Technical field
The utility model relates to sealing device field, the sealing device of graphite heat exchanger tube in specifically a kind of graphite heat exchanger.
Background technology
In the process of industrial production titanium dioxide, can produce a large amount of spent acid, directly discharging can cause serious environmental to pollute, and spent acid is handled the back reuse, can not only solve problem of environmental pollution, and can bring considerable economic to enterprise.The multistage concentrated method of general employing when handling spent acid, owing to contain impurity such as metatitanic acid, ferrous sulfate in the spent acid, along with concentrating of spent acid, the concentration of acid is more and more higher, impurity also crystallizes out gradually, so in the spent acid enrichment facility, the design selection of equipment is very important.
The heater that spent acid concentrates usefulness is generally graphite heat exchanger, and the medium of tube side is a spent acid in the heat exchanger, and the medium of shell side is a steam.In the production process, the impurity of crystallization is very easy to stop up the graphite heat exchanger tube in the spent acid, needs the exchange heat pipe often to clean and change; Because graphite heat exchanger tube and tube sheet place are poorly sealed, not only can cause spent acid to enter shell side, the corrosion housing, and can make ferrous sulfate crystallization in the slit of sealing place, it is difficult to cause the graphite heat exchanger tube to be changed.
Summary of the invention
Technical assignment of the present utility model is at above weak point, provide a kind of simple in structure, dismounting easily, the sealing device of graphite heat exchanger tube in a kind of graphite heat exchanger of long service life.
The technical scheme that its technical problem that solves the utility model adopts is: the sealing device comprises graphite heat exchange tube sheet and graphite heat exchanger tube, junction between graphite heat exchanger tube end and the graphite heat exchange tube sheet is equipped with O RunddichtringO and Graphite pad from inside to outside successively, and the arranged outside of Graphite pad has the graphite clamp nut.
Described O RunddichtringO and Graphite pad respectively are equipped with two, and interlaced placement.
The outside of described graphite clamp nut is equipped with a polytetrafluoroethylene sealing gasket.
The sealing device of graphite heat exchanger tube is compared with prior art in a kind of graphite heat exchanger of the present utility model, have reasonable in design, good airproof performance, security of operation, dismounting easily, characteristics such as long service life, production cost be low.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is the structural representation of the sealing device of graphite heat exchanger tube in a kind of graphite heat exchanger.
Among the figure: 1, O RunddichtringO, 2, Graphite pad, 3, the graphite clamp nut, 4, polytetrafluoroethylene sealing gasket, 5, graphite heat exchange tube sheet, 6, the graphite heat exchanger tube.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The sealing device of graphite heat exchanger tube in a kind of graphite heat exchanger of the present utility model, its structure comprises graphite heat exchange tube sheet 5 and graphite heat exchanger tube 6, interlaced from inside to outside two O RunddichtringOs 1 and two Graphite pads 2 of being equipped with in junction between graphite heat exchanger tube 6 ends and the graphite heat exchange tube sheet 5, the arranged outside of Graphite pad 2 has graphite clamp nut 3, and the outside of graphite clamp nut 3 is equipped with a polytetrafluoroethylene sealing gasket 4.
Polytetrafluoroethylene sealing gasket 4 is installed in outermost end, reduces spent acid liquid and enter sealing place, use fixedly graphite heat exchanger tube 6 of O RunddichtringO 1, Graphite pad 2 and graphite clamp nut 3, and guarantee the tightness of sealing, finally reach the effect of excellent sealing.
Its processing and fabricating of sealing device of graphite heat exchanger tube is very simple and convenient in a kind of graphite heat exchanger of the present utility model, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.

Claims (3)

1. the sealing device of graphite heat exchanger tube in the graphite heat exchanger, comprise graphite heat exchange tube sheet and graphite heat exchanger tube, it is characterized in that the junction between graphite heat exchanger tube end and the graphite heat exchange tube sheet is equipped with O RunddichtringO and Graphite pad from inside to outside successively, the arranged outside of Graphite pad has the graphite clamp nut.
2. the sealing device of graphite heat exchanger tube in the graphite heat exchanger according to claim 1 is characterized in that described O RunddichtringO and Graphite pad respectively are equipped with two, and interlaced placement.
3. the sealing device of graphite heat exchanger tube in the graphite heat exchanger according to claim 1 is characterized in that the outside of described graphite clamp nut is equipped with a polytetrafluoroethylene sealing gasket.
CN2010205125195U 2010-09-01 2010-09-01 Sealing device for graphite heat exchange tube in graphite heat exchanger Expired - Lifetime CN201780037U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205125195U CN201780037U (en) 2010-09-01 2010-09-01 Sealing device for graphite heat exchange tube in graphite heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205125195U CN201780037U (en) 2010-09-01 2010-09-01 Sealing device for graphite heat exchange tube in graphite heat exchanger

Publications (1)

Publication Number Publication Date
CN201780037U true CN201780037U (en) 2011-03-30

Family

ID=43793248

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205125195U Expired - Lifetime CN201780037U (en) 2010-09-01 2010-09-01 Sealing device for graphite heat exchange tube in graphite heat exchanger

Country Status (1)

Country Link
CN (1) CN201780037U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884019A (en) * 2014-02-26 2014-06-25 南通京通石墨设备有限公司 Graphite-tube type low-temperature air preheater
CN106017145A (en) * 2016-07-11 2016-10-12 南通星球石墨设备有限公司 Graphite heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884019A (en) * 2014-02-26 2014-06-25 南通京通石墨设备有限公司 Graphite-tube type low-temperature air preheater
CN106017145A (en) * 2016-07-11 2016-10-12 南通星球石墨设备有限公司 Graphite heat exchanger

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 100010 Beijing City, Dongcheng District Chaoyangmen North Street, No. 25 building, Chinese CNOOC Offshore Oil Corporation, the Ministry of science and technology

Co-patentee after: Offshore Oil Engineering Co., Ltd.

Patentee after: China Offshore Oil Group Co., Ltd.

Co-patentee after: CNOOC Petrochemical Engineering Co Ltd

Address before: 100010 Beijing City, Dongcheng District Chaoyangmen North Street, No. 25 building, Chinese CNOOC Offshore Oil Corporation, the Ministry of science and technology

Co-patentee before: Offshore Oil Engineering Co., Ltd.

Patentee before: China National Offshore Oil Corporation

Co-patentee before: China National Offshore Oil Shandong Chemical Engineering Co., Ltd.

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20110330

CX01 Expiry of patent term