CN201297963Y - Catalytic cracking wear-resistant thermocouple - Google Patents
Catalytic cracking wear-resistant thermocouple Download PDFInfo
- Publication number
- CN201297963Y CN201297963Y CNU2008201007436U CN200820100743U CN201297963Y CN 201297963 Y CN201297963 Y CN 201297963Y CN U2008201007436 U CNU2008201007436 U CN U2008201007436U CN 200820100743 U CN200820100743 U CN 200820100743U CN 201297963 Y CN201297963 Y CN 201297963Y
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- wear
- protection metal
- metal pipe
- catalytic cracking
- connecting pipe
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Abstract
The utility model discloses a catalytic cracking wear-resistant thermocouple which comprises a junction box (1), a hollow bolt (11), a connecting mechanism, a metal protection tube (4) and an armored plate (5). The junction box (1) is connected with the upper end of the connecting mechanism by the hollow bolt (11) while the lower end of the connecting mechanism is fixed on the upper end of the metal protection tube (4); the armored plate (5) penetrates through the connecting mechanism and the metal protection tube (4); the metal protection tube (4) is sleeved in a wear-resistant ceramic cylinder (6) which is fixed on the metal protection tube (4) by adhesive (7). The catalytic cracking wear-resistant thermocouple enhances the protection effect on the armored plates, prevents external environment such as catalyzer and the like from wearing and corroding the metal protection tube and greatly prolongs the service life of the thermocouple, and has skillful design, simple structure, easy implementation, favorable reliability and the like.
Description
Technical field
The utility model relates to a kind of thermopair, specifically, relates in particular to the thermopair that is suitable for the catalytic cracking unit environment.
Background technology
Catalytic cracking process is that raw material sprays into the riser reactor bottom by nozzle with spray pattern, slurry oil directly enters riser without heating, contact and vaporization immediately with high temperature (about 650 ℃～700 ℃) catalyzer from regenerator, oil gas is carrying catalyzer and is passing through riser with the high linear speed of 7 meter per seconds～8 meter per seconds with atomizing steam and the pre-steam that promotes, (the catalyzer principal ingredient is an alumina silicate, adopt 3～5mm pellet shapes catalyzer), so thermopair is the environment that is operated in high temperature, high velocity particle wearing and tearing and corrosive medium is arranged.
Traditional thermopair is surface build-up welding zirconia or a tungsten carbide wear-resistant coating on protection metal pipe, and the thickness of coating is 1～3mm.The built-up welding zirconia can reach 1300 ℃ by high temperature resistant fusing point, and it is still undesirable at corrosion environment particle scouring effect to be fit to airflow scouring; And the easy oxidation of the tungsten carbide particle of built-up welding, and working temperature can not be above 650 ℃.Therefore can not satisfy the hot environment job requirement of thermopair fully.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of use under the catalytic cracking environment, can improve the wear-resistant corrosion resistance of protection tube, simultaneously serviceable life secure thermopair.
The technical solution of the utility model is as follows: a kind of catalytic cracking abrasion resistant thermocouple; comprise terminal box, hollow bolt, bindiny mechanism, protection metal pipe and armour material; wherein terminal box is connected with the upper end of bindiny mechanism by hollow bolt; the lower end of bindiny mechanism and the upper end of protection metal pipe are fixed; in bindiny mechanism and protection metal pipe, wear the armour material; its key is: suit wear-resistant ceramic tube on described protection metal pipe, this wear-resistant ceramic tube is fixed by bonding agent and protection metal pipe.
The wear-resistant ceramic of novel cube structure is a kind of that chemical property is the most stable, physical strength is the highest; Ceramic and most of motlten metals do not reflect in oxidation and reducing atmosphere, to have the good high-temperature electrical insulating property; The wear-resistant ceramic temperature conductivity is big, coefficient of thermal expansion is little, wear-resistant, corrosion-resistant, its long-term serviceability temperature is 1600 ℃.In the outside of protection metal pipe the wear-resistant ceramic tube is set, the high speed that the wear-resistant ceramic tube can be resisted thermometric environment particle is washed away and is corroded, thereby has protected protection metal pipe and armour material, has prolonged the serviceable life of product.Adopt bonding agent to link into an integrated entity between wear-resistant ceramic tube and the protection metal pipe, both are fixed, can not come off, and remedy ceramic frangible shortcoming.
Preferred scheme is, above-mentioned wear-resistant ceramic tube and protection metal pipe be bonding to become wear-resisting, shatter-proof solid protective, and the wall thickness of wear-resistant ceramic tube is 5～7mm.
In the open-mouth setting of above-mentioned wear-resistant ceramic tube silently, this silently is sleeved on the protection metal pipe, and both weld fixing.Silently play a part to cover bonding agent, bonding agent is not exposed, more good-looking with the outward appearance that guarantees product.
Above-mentioned bindiny mechanism is made of last connecting pipe, ring flange and following connecting pipe; wherein descend the lower end of connecting pipe and the upper end welding of protection metal pipe to fix; upper end welding flange at following connecting pipe; the lower end welding of this ring flange and last connecting pipe is fixing; weld mutually with the lower end cylindrical of hollow bolt described upper end of going up connecting pipe; the lower end endoporus of hollow bolt and the welding of armour material are fixing, and the upper end of described hollow bolt is stretched in the terminal box, both threaded engagement.Above structure connects reliable, easy accessibility, and makes to possess break-in facility between thermopair and the environment, to adapt to the needs of catalytic cracking environmental hazard.
Beneficial effect: the utility model can improve the protection effect to the armour material; prevent of wearing and tearing and the corrosion of external environment conditions such as catalyzer to protection metal pipe; prolonged the serviceable life of thermopair greatly, have be skillfully constructed, simple in structure, implement easily, characteristics such as good reliability.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of hollow bolt.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2; the utility model by terminal box 1, hollow bolt 11, go up connecting pipe 9, ring flange 10, connecting pipe 12, protection metal pipe 4, armour material 5, wear-resistant ceramic tube 6, bonding agent 7 and silently 8 etc. constitute down; wherein have first interface 2 in the lower end of terminal box 1, the side on terminal box 1 top has second interface 3.Weld mutually with the lower end cylindrical of hollow bolt 11 described upper end of going up connecting pipe 9, and the lower end endoporus of hollow bolt 11 is fixed with 5 welding of armour material, and armour material 5 is located in the body that connecting pipe 9, ring flange 10, time connecting pipe 12 and protection metal pipe 4 formed.The upper end of described hollow bolt 11 is stretched in first interface 2 of terminal box 1, both threaded engagement.Said structure makes to possess break-in facility between thermopair and the environment.
As can be known from Fig. 1, be welded with ring flange 10 in the lower end of last connecting pipe 9, this ring flange 10 can connect by ring flange corresponding on screw rod and the equipment, and ring flange 10 is fixed with the upper end welding of following connecting pipe 12.Described protection metal pipe 4 is that the upper end is uncovered, the tubular structure of lower end closed, and the opening end of protection metal pipe 4 connects with the lower end of following connecting pipe 12, and fixing by welding.Describedly go up connecting pipe 9, ring flange 10, connecting pipe 12 is identical with the axial line of protection metal pipe 4 four down.
Further as can be known, wear-resistant ceramic tube 6 also is that the upper end is uncovered, the tubular structure of lower end closed from Fig. 1, and wall thickness is preferably 5～7mm.Wear-resistant ceramic tube 6 is set in protection metal pipe 4 from one section pipe shaft of its middle and upper part to bottom, and wear-resistant ceramic tube 6 is fixing with protection metal pipe 4 by bonding agent 7.In the open-mouth setting of wear-resistant ceramic tube 6 silently 8, this silently 8 is sleeved on the protection metal pipe 4, and both weld fixing.Silently 8 play a part to cover bonding agent 7, and bonding agent 7 is not exposed.
In the utility model, the installation connected mode of thermopair, the flange mounting means can wait with being threaded and replace, and can require to make according to customer equipment.
Working condition of the present utility model is as follows:
Wear-resistant ceramic tube in the utility model is partly placed catalytic cracking environment to be measured, the lead of terminal box 1 is drawn by second interface 3, and connect with Displaying Meter that (two kinds of different metallic conductors are joined together to form a closed-loop path, when two contact temperatures not simultaneously, in the loop, produce thermopower).Displaying Meter in the loop just demonstrates the temperature value that thermopair produces the thermopower correspondence.
Claims (4)
1, a kind of catalytic cracking abrasion resistant thermocouple; comprise terminal box (1), hollow bolt (11), bindiny mechanism, protection metal pipe (4) and armour material (5); wherein terminal box (1) is connected with the upper end of bindiny mechanism by hollow bolt (11); the upper end of the lower end of bindiny mechanism and protection metal pipe (4) is fixed; in bindiny mechanism and protection metal pipe (4), wear armour material (5); it is characterized in that: go up suit wear-resistant ceramic tube (6) at described protection metal pipe (4), this wear-resistant ceramic tube (6) is fixing by bonding agent (7) and protection metal pipe (4).
2, catalytic cracking abrasion resistant thermocouple according to claim 1 is characterized in that: the wall thickness of described wear-resistant ceramic tube (6) is 5～7mm.
3, catalytic cracking abrasion resistant thermocouple according to claim 1 and 2 is characterized in that: in the open-mouth setting of described wear-resistant ceramic tube (6) silently (8), this silently (8) be sleeved on the protection metal pipe (4), both weld fixing.
4; catalytic cracking abrasion resistant thermocouple according to claim 1; it is characterized in that: described bindiny mechanism is by last connecting pipe (9); ring flange (10) and following connecting pipe (12) constitute; wherein descend the lower end of connecting pipe (12) and the upper end welding of protection metal pipe (4) to fix; upper end welding flange (10) at following connecting pipe (12); this ring flange (10) is fixing with the lower end welding of last connecting pipe (9); weld mutually with the lower end cylindrical of hollow bolt (11) described upper end of going up connecting pipe (9); the lower end endoporus of hollow bolt (11) and armour material (5) welding are fixing; the upper end of described hollow bolt (11) is stretched in the terminal box (1), both threaded engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201007436U CN201297963Y (en) | 2008-11-28 | 2008-11-28 | Catalytic cracking wear-resistant thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201007436U CN201297963Y (en) | 2008-11-28 | 2008-11-28 | Catalytic cracking wear-resistant thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297963Y true CN201297963Y (en) | 2009-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201007436U Expired - Lifetime CN201297963Y (en) | 2008-11-28 | 2008-11-28 | Catalytic cracking wear-resistant thermocouple |
Country Status (1)
| Country | Link |
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| CN (1) | CN201297963Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305671A (en) * | 2011-07-21 | 2012-01-04 | 吴方立 | Wear-resisting thermoelectric couple used for catalytic cracking unit |
| CN103323126A (en) * | 2013-06-13 | 2013-09-25 | 上海方欣实业有限公司 | Wear-resistant protection pipe used for temperature sensor |
| CN104279473A (en) * | 2014-09-17 | 2015-01-14 | 常州市家虹包装有限公司 | Anti-corrosive street lamp |
| CN106289551A (en) * | 2016-08-30 | 2017-01-04 | 张子青 | A kind of thermocouple structure being easy to fix |
-
2008
- 2008-11-28 CN CNU2008201007436U patent/CN201297963Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305671A (en) * | 2011-07-21 | 2012-01-04 | 吴方立 | Wear-resisting thermoelectric couple used for catalytic cracking unit |
| CN103323126A (en) * | 2013-06-13 | 2013-09-25 | 上海方欣实业有限公司 | Wear-resistant protection pipe used for temperature sensor |
| CN104279473A (en) * | 2014-09-17 | 2015-01-14 | 常州市家虹包装有限公司 | Anti-corrosive street lamp |
| CN106289551A (en) * | 2016-08-30 | 2017-01-04 | 张子青 | A kind of thermocouple structure being easy to fix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |
|
| CX01 | Expiry of patent term |