CN201921679U - Air cap device of gas distribution plate for fluidized bed reactor - Google Patents
Air cap device of gas distribution plate for fluidized bed reactor Download PDFInfo
- Publication number
- CN201921679U CN201921679U CN2010206637171U CN201020663717U CN201921679U CN 201921679 U CN201921679 U CN 201921679U CN 2010206637171 U CN2010206637171 U CN 2010206637171U CN 201020663717 U CN201020663717 U CN 201020663717U CN 201921679 U CN201921679 U CN 201921679U
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- China
- Prior art keywords
- blast cap
- guide rod
- gas distribution
- cap device
- baffle plate
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Abstract
The utility model provides an air cap device of a gas distribution plate (10) for a fluidized bed reactor. The air cap device is mounted on the gas distribution plate (10) through an open hole (11) arranged on the gas distribution plate (10) and comprises an air cap head (1), a guide rod (2) and a baffle plate (3), the guide rod (2) penetrates through the open hole (11), the air cap head (1) is fixed to the upper end of the guide rod (2), the baffle plate (3) is fixed to the lower end of the guide rod (2), a distance between the lower end face of the air cap head (1) and the upper end face of the baffle plate (3) is larger than a thickness of the gas distribution plate (10), and the diameter of the guide rod (2) is smaller than that of the open hole (11). After the air cap device is used in the gas distribution plate of the fluidized fluid bed, and reaction can be automatically blocked once abnormal condition occurs in the reactor at first to avoid accidents.
Description
Technical field
The utility model relates to chemical field, more specifically, relates to a kind of blast cap device that is used for the gas distribution grid of fluidized-bed reactor.
Background technology
In fluidized-bed reactor, this work condition abnormality of overvoltage can be accidents caused.Common work condition abnormality has two kinds: material adds excessive and excessive by the stream pressure of gas distribution grid inflow supplies room.
At present, be the method that adopts the detecting devices monitoring the to pass back to central control system then reactiveness of obtaining fluid bed inside.After obtaining fluid bed internal-response state, central control system automatically performs associative operation (comparatively advanced) or informs that operating personnel send instruction and carry out associative operation (comparatively common) by default again.Yet this method can't be regulated and control material in the fluid bed very first time, has hysteresis quality.
Conventional processing accident method is in the fluid bed periphery control valve to be set, if the inner work condition abnormality of fluid bed, the system that stops to move at first needs the report with production relevant departments, back and forth reply; The affected situation of its other linked systems of less important verification, and open corollary system and carry out corresponding actions.Under these prerequisites satisfy simultaneously, just can stop, thereby very big uncertainty (which link has problem all can not carry out) is arranged, thereby cause the serious wasting of resources and improve operation cost.
The utility model content
The purpose of this utility model is to provide a kind of blast cap device, is applied to the gas distribution grid of fluidized-bed reactor, if produce unusual service condition, can block the fluidized reaction in the fluid bed very first time voluntarily, avoids accident to take place.
In order to achieve the above object, the utility model provides a kind of blast cap device that is used for the gas distribution grid of fluidized-bed reactor, this blast cap device is installed on the described gas distribution grid by the perforate on the described gas distribution grid, wherein, described blast cap device comprises the blast cap head, guide rod and baffle plate, described guide rod passes described perforate, described blast cap head is fixed on the upper end of described guide rod, described baffle plate is fixed on the lower end of described guide rod, and the distance between the lower surface of described blast cap head and the upper surface of described baffle plate is greater than the thickness of described gas distribution grid, and the diameter of described guide rod is less than the diameter of described perforate.
Preferably, described blast cap head is a conical shell, and the bottom opening of this conical shell is greater than described perforate.
Preferably, described baffle plate is a circular slab, and this circular slab is greater than described perforate.
Preferably, the peripheral part of the upper surface of described baffle plate forms taper seat.
Preferably, described baffle plate removably is connected with described guide rod.
Preferably, described baffle plate is threaded with described guide rod.
Preferably, described blast cap head and described guide rod are by being welded to connect.
Preferably, the distance between the upper surface of the lower surface of described blast cap head and described baffle plate is 1.3～1.5 times of thickness of described gas distribution grid.
Preferably, the ratio of the diameter of the diameter of described guide rod and described perforate is 0.7～0.9.
Preferably, described guide rod is a hollow shaft.
By the utility model being applied in the gas distribution grid of fluidized-bed reactor, when producing unusual service condition in the fluidized-bed reactor, the blast cap device can move upward or move downward the perforate on the gas distribution grid of fluidized-bed reactor is sealed, the very first time is blocking reaction voluntarily, avoid accident to take place, and therefore reduced the operation cost of fluidized-bed reactor.
Description of drawings
Shown in Figure 1 is the front view of a kind of embodiment of blast cap device described in the utility model;
Shown in Figure 2 is the partial sectional view of the blast cap device shown in Fig. 1.
Reference numeral
1 blast cap head, 2 guide rods
3 baffle plates, 10 gas distribution grids
11 gas distribution grid perforates
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in detail.Fig. 1 is the front view of a kind of embodiment of blast cap device described in the utility model, and Fig. 2 is the local amplification view of the blast cap device shown in Fig. 1.
As shown in Figure 1, the utility model provides a kind of blast cap device that is used for the gas distribution grid 10 of fluidized-bed reactor, this blast cap device is installed on the gas distribution grid 10 by the perforate on the gas distribution grid 10 11, wherein, the blast cap device comprises blast cap head 1, guide rod 2 and baffle plate 3, guide rod 2 passes perforate 11, blast cap head 1 is fixed on the upper end of guide rod 2, baffle plate 3 is fixed on the lower end of guide rod 2, and the distance between the upper surface of the lower surface of blast cap head 1 and baffle plate 3 is greater than the thickness of gas distribution grid 10, and the diameter of guide rod 2 is less than the diameter of perforate 11.
Behind blast cap device application described in the utility model and fluidized-bed reactor, because the diameter of guide rod 2 is less than the diameter of perforate 11, therefore, gas can enter the solid material chamber participation reaction of fluidized-bed reactor along the slit between the guide rod 2 of perforate on the gas distribution grid 10 11 and blast cap device when reaction, and, distance between the upper surface of the lower surface of blast cap head 1 and baffle plate 3 is greater than the thickness t of gas distribution grid 10, this just can guarantee, when the inner operating mode of fluidized-bed reactor just often, the blast cap device is in the state of a balance, that is, blast cap head 1 does not all come in contact with gas distribution grid 10 with baffle plate 3.
How will describe blast cap device described in the utility model below plays a role when work condition abnormality.
When the work condition abnormality of fluidized-bed reactor inside, blast cap device described in the utility model can guarantee production safety at very first time blocking reaction.
Described work condition abnormality comprises two kinds of situations: solid material adds excessive and supply gas pressure is excessive.When solid material adds when excessive, solid material can be with blast cap head 1 toward pressing down, and it is fewer and feweri to enter into the indoor gas of the solid reaction of fluid bed, and when blast cap head 1 contacted with gas distribution grid 10, reaction speed was the slowest.Generally, the shape of blast cap head 1 can for example, can be conical shell for multiple, also can be the shape of one section equal angle iron.Certainly, blast cap head 1 herein is preferably conical shell, and the bottom opening of conical shell should be greater than perforate 11, and blast cap head 1 can be shut the perforate on the gas distribution grid 10 11 and make reaction stop to carry out when work condition abnormality takes place.When supply gas pressure is excessive, the baffle plate 3 that gas pressure promotes on the blast cap device is up, along with the blast cap device moves towards the solid material chamber of fluidized-bed reactor, the gas that enters into the solid reaction chamber interior is fewer and feweri, contact with gas distribution grid 10 until baffle plate 3, the position is shut in perforate on the gas distribution grid 1 11, and reaction stops to carry out.
Preferably, baffle plate 3 is a circular slab, and this circular slab should be bigger than perforate 11.Can not fully perforate be shut when fitting closely for anti-baffle plate 3 and gas distribution grid, preferably, the upper surface periphery of baffle plate 3 forms taper seat.
By the above-mentioned operation of described blast cap device, promptly can guarantee just often to carry out fluidized reaction in operating mode, can guarantee timely blocking reaction when work condition abnormality again, avoid accident to take place.
As mentioned above, distance between the upper surface of the lower surface of blast cap head 1 and baffle plate 3 should be greater than the thickness of gas distribution grid 10, could guarantee that like this blast cap head 1 does not just often all contact with gas distribution grid 10 in operating mode with baffle plate 3 when reaction, certainly, preferably, distance between the upper surface of the lower surface of blast cap head 1 and baffle plate 3 is 1.3～1.5 times of thickness of described gas distribution grid, like this, necessary gap in the time of can guaranteeing that operating mode is just often kept reaction between blast cap head 1 and distribution grid 10 and baffle plate 3 and the distribution grid 10, can guarantee again that when work condition abnormality blast cap head 1 or baffle plate 3 contact with gas distribution grid 10 fast, in time the carrying out of blocking reaction.
In fluidized-bed reactor, if fluidized reaction carried out after a period of time, can some solid materials of deposition on gas distribution grid 10, in the perforate 11 and below the blast cap head 1, therefore need carry out clean and maintenance to gas distribution grid and blast cap device, for convenience of the perforate 11 and the blast cap device of purge gas distribution grid 10, preferably, between baffle plate 3 and the guide rod 2 for removably being connected, such as shown in Figure 2, baffle plate 3 is threaded with guide rod 2.When purge gas distribution grid 10, only need be removed the blast cap device and get final product from the perforate 11 of distribution grid 10.
Certainly, herein also can be with being connected to be made as and removably connecting between blast cap head 1 and the guide rod 2.But machining screw is not easily in blast cap head 1, so, preferably, blast cap head 1 can be welded on an end of guide rod 2.
Smooth and easy in order to guarantee air feed, between the hole wall of guide rod 2 and perforate 11 certain clearance should be arranged, preferably, the ratio of the diameter of the diameter of guide rod 2 and perforate 11 is 0.7～0.9.
The weight of whole wind cap device is unsuitable overweight, so preferably, described guide rod 2 can be a hollow shaft.
Blast cap device described in the utility model is used for can moving up and down in the perforate of gas distribution grid after the fluidized-bed reactor, both guaranteed operating mode normally carrying out of fluidized reaction just often, again can be at very first time blocking reaction when work condition abnormality takes place, avoid accident to take place, save operation cost, improved production efficiency.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (10)
1. blast cap device that is used for the gas distribution grid (10) of fluidized-bed reactor, this blast cap device is installed on the described gas distribution grid (10) by the perforate (11) on the described gas distribution grid (10), it is characterized in that, described blast cap device comprises blast cap head (1), guide rod (2) and baffle plate (3), described guide rod (2) passes described perforate (11), described blast cap head (1) is fixed on the upper end of described guide rod (2), described baffle plate (3) is fixed on the lower end of described guide rod (2), and the distance between the upper surface of the lower surface of described blast cap head (1) and described baffle plate (3) is greater than the thickness of described gas distribution grid (10), and the diameter of described guide rod (2) is less than the diameter of described perforate (11).
2. blast cap device according to claim 1 is characterized in that, described blast cap head (1) is a conical shell, and the bottom opening of this conical shell is greater than described perforate (11).
3. blast cap device according to claim 1 is characterized in that, described baffle plate (3) is a circular slab, and this circular slab is greater than described perforate (11).
4. blast cap device according to claim 3 is characterized in that, the peripheral part of the upper surface of described baffle plate (3) forms taper seat.
5. blast cap device according to claim 3 is characterized in that, described baffle plate (3) removably is connected with described guide rod (2).
6. blast cap device according to claim 5 is characterized in that, described baffle plate (3) is threaded with described guide rod (2).
7. blast cap device according to claim 1 is characterized in that, described blast cap head (1) and described guide rod (2) welding.
8. blast cap device according to claim 1 is characterized in that, the distance between the upper surface of the lower surface of described blast cap head (1) and described baffle plate (3) is 1.3～1.5 times of thickness of described gas distribution grid (10).
9. blast cap device according to claim 1 is characterized in that, the ratio of the diameter of the diameter of described guide rod (2) and described perforate (11) is 0.7～0.9.
10. blast cap device according to claim 1 is characterized in that, described guide rod (2) is a hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206637171U CN201921679U (en) | 2010-12-16 | 2010-12-16 | Air cap device of gas distribution plate for fluidized bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206637171U CN201921679U (en) | 2010-12-16 | 2010-12-16 | Air cap device of gas distribution plate for fluidized bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921679U true CN201921679U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206637171U Expired - Fee Related CN201921679U (en) | 2010-12-16 | 2010-12-16 | Air cap device of gas distribution plate for fluidized bed reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921679U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174340A (en) * | 2014-07-07 | 2014-12-03 | 天津科技大学 | Slit type fluidized bed gas distribution board |
| CN105289424A (en) * | 2015-11-25 | 2016-02-03 | 苏州天沃科技股份有限公司 | Fluidized bed reactor apparatus blast cap and distribution plate assembling structure |
| CN104941534B (en) * | 2014-03-31 | 2018-03-20 | 英尼奥斯欧洲股份公司 | For the design of the improved air grid of oxidation or ammonia oxidation reactor |
-
2010
- 2010-12-16 CN CN2010206637171U patent/CN201921679U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941534B (en) * | 2014-03-31 | 2018-03-20 | 英尼奥斯欧洲股份公司 | For the design of the improved air grid of oxidation or ammonia oxidation reactor |
| CN104174340A (en) * | 2014-07-07 | 2014-12-03 | 天津科技大学 | Slit type fluidized bed gas distribution board |
| CN105289424A (en) * | 2015-11-25 | 2016-02-03 | 苏州天沃科技股份有限公司 | Fluidized bed reactor apparatus blast cap and distribution plate assembling structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20161216 |