CN205226479U - Catalytic cracking system and water seal valve thereof - Google Patents
Catalytic cracking system and water seal valve thereof Download PDFInfo
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- CN205226479U CN205226479U CN201521022707.9U CN201521022707U CN205226479U CN 205226479 U CN205226479 U CN 205226479U CN 201521022707 U CN201521022707 U CN 201521022707U CN 205226479 U CN205226479 U CN 205226479U
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Abstract
The utility model discloses a water seal valve, including hollow casing, be equipped with on the casing intos gas port and gas outlet, the inside of casing is equipped with opening reservoir up, and the interior roof of casing is connected with to insert and leaves the wall spare in clearance in the inside of reservoir and with the interior bottom surface of reservoir, and reservoir stock solution and liquid level are higher than the gas passage who goes into between gas port and the gas outlet and are cut off a wall under the state that cuts off a lower terminal surface. The use of this water seal valve can cut off the flue gas between exhaust -heat boiler and chimney more conveniently, is favorable to simplifying the flue gas pipeline's of exhaust -heat boiler exhanst gas outlet design, practices thrift the cost. The utility model also discloses an including the catalytic cracking system of above -mentioned water seal valve, has improved the utilization ratio to the space.
Description
Technical field
The utility model relates to petrochemical industry technical field, particularly a kind of water-sealing valve.The utility model also relates to a kind of catalytic cracking system comprising above-mentioned water-sealing valve.
Background technique
Along with the strict enforcement of national environmental protection regulation, generally need in the catalytic cracking system in current petrochemical industry to increase flue gas desulfurization and denitrification device after exhaust heat boiler.After increasing desulfuring and denitrifying apparatus, need between exhaust heat boiler and chimney, arrange cut-out equipment, the flue gas between exhaust heat boiler and chimney is cut off and flows to desulfuring and denitrifying apparatus.Exhaust heat boiler in a lot of catalytic cracking system and chimney are apart from very near, simultaneously, heat boiler outlet fume pipe absolute altitude is very low, general close proximity to ground, but the volume of traditional cut-out equipment water sealed tank is comparatively large, after increasing desulfuring and denitrifying apparatus, cannot arrange between exhaust heat boiler and chimney and take up an area the larger traditional water sealed tank in space, bring difficulty for the flue gas between exhaust heat boiler and chimney cuts off.
Therefore, how cutting off the flue gas between exhaust heat boiler and chimney more easily, is the current technical issues that need to address of those skilled in the art.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of water-sealing valve, and this water-sealing valve can cut off the flue gas between exhaust heat boiler and chimney more easily.Another object of the present utility model is to provide a kind of catalytic cracking system comprising above-mentioned water-sealing valve, this system improves the utilization ratio to space.
For achieving the above object, the utility model provides following technological scheme:
A kind of water-sealing valve, comprise the housing of hollow, described housing is provided with air intake and air outlet, the inside of described housing is provided with opening up liquid storage tank, the inner roof wall of described housing is connected with the inside that is inserted in described liquid storage tank and leaves the partitions in gap with the inner bottom surface of described liquid storage tank, described liquid storage tank liquid storage and under the state of liquid level higher than described partitions lower end surface, the gas passageway between described air intake and described air outlet is cut off by described partitions.
Preferably, described liquid storage tank comprises the first partition panel and the second partition panel that set gradually to direction, described air outlet along described air intake, and side and the base of the side of described first partition panel and base, described second partition panel all fit with the internal face of described housing.
Preferably, described partitions is dull and stereotyped, and the side of described partitions and end face all fit with described internal face.
Preferably, described housing is also provided with between described air intake with described partitions the vent for being connected desulfurizer, denitrification apparatus or dust removal apparatus.
Preferably, described air intake is also connected with suction tude, and described air outlet is also connected with steam outlet pipe.
A kind of catalytic cracking system, comprise fume pipe and water-sealing valve, described water-sealing valve is the water-sealing valve described in above-mentioned any one.
The water-sealing valve that the utility model provides, is provided with liquid storage tank and inserts the partitions of liquid storage tank inside in housing.This water-sealing valve is arranged between exhaust heat boiler and chimney, and flue gas enters in housing by air intake, when in liquid storage tank not liquid storage time, flue gas flows to air outlet by the gap formed between partitions and liquid storage tank; When liquid storage in liquid storage tank and the lower end surface of partitions lower than liquid level time, the gas passageway between air intake and air outlet can be cut off, along with the increasing of flue gas entering air intake, there is height difference in the liquid level of partitions both sides, when the pressure maximum that the height difference of liquid level can produce is greater than flue gas pressures, the partition of gas passageway can be realized.
This water-sealing valve takes up room less, and directly can be connected with the very low fume pipe even pasting the heat boiler outlet on ground of absolute altitude, facilitate the partition between exhaust heat boiler and chimney, be conducive to the design of the fume pipe simplifying heat boiler outlet, can be cost-saving; In addition, for long smoke seal chimney, adopt this water-sealing valve can obtain good sealing effect, thus the smoke spillage risk that exists when eliminating system long-term operation, avoid the potential safety hazard that causes due to leakage and environmental issue.
The catalytic cracking system of what the utility model provided comprise above-mentioned water-sealing valve, improves the utilization ratio to space.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 provides by the utility model the structural representation of specific embodiment one under water seal state of water-sealing valve;
Fig. 2 provides by the utility model the structural representation of the specific embodiment one of water-sealing valve under non-water seal state;
Fig. 3 provides by the utility model the structural representation of specific embodiment two under water seal state of water-sealing valve;
Fig. 4 provides by the utility model the structural representation of the specific embodiment two of water-sealing valve under non-water seal state.
In Fig. 1 to Fig. 4,1 is suction tude, and 2 is air intake, and 3 is housing, and 4 is liquid storage tank, and 5 is air outlet, and 6 is steam outlet pipe, and 7 is partitions, and 8 is vent.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Core of the present utility model is to provide a kind of water-sealing valve, and this water-sealing valve can cut off the flue gas between exhaust heat boiler and chimney more easily.Another core of the present utility model is to provide a kind of catalytic cracking system comprising above-mentioned water-sealing valve, this system improves the utilization ratio to space.
Please refer to Fig. 1 to Fig. 4, Fig. 1 provides by the utility model the structural representation of specific embodiment one under water seal state of water-sealing valve; Fig. 2 provides by the utility model the structural representation of the specific embodiment one of water-sealing valve under non-water seal state; Fig. 3 provides by the utility model the structural representation of specific embodiment two under water seal state of water-sealing valve; Fig. 4 provides by the utility model the structural representation of the specific embodiment two of water-sealing valve under non-water seal state.
The utility model provide in a kind of specific embodiment of water-sealing valve, water-sealing valve comprises the housing 3 of hollow, and housing 3 is provided with air intake 2 and air outlet 5, and when being applied to catalytic cracking system, air intake 2 is connected to exhaust heat boiler, and air outlet 5 is connected to chimney.Be provided with liquid storage tank 4 in the inside of housing 3, and liquid storage tank 4 is opening up.The inner roof wall of housing 3 is connected with partitions 7, and this partitions 7 is inserted in the inside of liquid storage tank 4 and leaves gap with the inner bottom surface of liquid storage tank 4.At liquid storage tank 4 liquid storage and under the state of liquid level higher than partitions 7 lower end surface, gas passageway between air intake 2 and air outlet 5 is cut off part 7 and cuts off, that is, in this water-sealing valve, the gas entered by air intake 2 can only flow to air outlet 5 by the gap between partitions 7 and liquid storage tank 4, when liquid storage in liquid storage tank 4 and liquid level higher than partitions 7 lower end surface time, the inner space of housing 3 is divided into two independently spaces.Usually, the liquid placed in liquid storage tank 4 is water, and the flue gas realized between exhaust heat boiler and chimney by water seal is cut off.
When in liquid storage tank 4 not liquid storage time, flue gas flows to air outlet 5 by the gap formed between partitions 7 and liquid storage tank 4; When liquid storage in liquid storage tank 4 and liquid level is arranged in the lower end surface of liquid storage tank 4 higher than partitions 7 time, the gas passageway between air intake 2 and air outlet 5 can be cut off, along with the increasing of flue gas entering air intake 2, there is height difference in the liquid level of partitions 7 both sides, when the pressure maximum that the height difference of liquid level can produce is greater than flue gas pressures, the partition of gas passageway can be realized.
This water-sealing valve takes up room less, and directly can be connected with the very low fume pipe even pasting the heat boiler outlet on ground of absolute altitude, facilitate the partition between exhaust heat boiler and chimney, be conducive to the design of the fume pipe simplifying exhaust-heat boiler flue gas outlet, cost-saving; In addition, for long smoke seal chimney, adopt this water-sealing valve can obtain good sealing effect, the smoke spillage risk existed when can eliminate system long-term operation, avoid the potential safety hazard that causes due to leakage and environmental issue.
Liquid storage tank 4 in the above-described embodiments, specifically can comprise the first partition panel and the second partition panel.Wherein, first partition panel and the second partition panel set gradually along air intake 2 to direction, air outlet 5, and the side of the side of the first partition panel and base and the second partition panel and base all fit with the internal face of housing 3, that is, two in liquid storage tank 4 internal face relative sides and bottom surface are the inwall of housing 3, and liquid storage tank 4 is jointly formed by the wall of the first partition panel, the second partition panel and the housing between the first partition panel and the second partition panel 3.This set-up mode can reduce the utilization rate of material, improves the utilization ratio of housing 3 inner space.
Partitions 7 in each embodiment above-mentioned, is specifically as follows flat board, and the side of partitions 7 and end face all fit with the internal face of housing 3, and that is, gas can only be passed through by the gap between dull and stereotyped and liquid storage tank 4.Certainly, partitions 7 also can be set to other shapes, as guided the arc plate of gas flow.It should be noted that, partitions 7 is not limited with each embodiment above-mentioned with the setting of liquid storage tank 4.
In a kind of preferred embodiment, liquid storage tank 4 can comprise the first partition panel and second partition panel of the arc set gradually to direction, air outlet 5 along air intake 2, the formation cylinder-like structure and the first partition panel and the second partition panel match, simultaneously, partitions 7 is set to the space bar with intermediate throughholes, the outer rim of space bar and the inwall of housing 3 fit.Particularly, through hole can be arranged on the middle and lower part of space bar, and this through hole is concave shape through hole, thus the hole wall on the wall of the cylinder-like structure of the first partition panel and the formation of the second partition panel and space bar is fitted, ensure that a part for space bar is inserted in liquid storage tank 4 simultaneously, and and leave gap between liquid storage tank 4 inner bottom surface; In addition, the base of the first partition panel and the base of the second partition panel all fit with the interior diapire of housing 3, when liquid storage in liquid storage tank 4 and liquid level to be inserted in liquid storage tank 4 bottom surface of part higher than partitions 7 time, the inner space of housing 3 is divided into two by partitions 7.
On the basis of each embodiment above-mentioned, vent 8 for connecting desulfurizer, denitrification apparatus or dust removal apparatus can be set on housing 3, this vent 8 is between air intake 2 and partitions 7, in addition, the external connecting pipe road of vent 8 is provided with shut-off means, and this shut-off means can sealing ventilation hole 8.When this water-sealing valve is applied to catalytic cracking system, air intake 2 on water-sealing valve is for connecting the smoke outlet of exhaust heat boiler, air outlet 5 is for connecting the smoke inlet of chimney, and vent 8 is for connecting the smoke inlet of desulfurizer, denitrification apparatus, dust removal apparatus or other devices.When the device such as desulphurization and denitration or dedusting can normally use, the flue gas path between exhaust heat boiler and chimney is cut off by the liquid in liquid storage tank 4 and partitions 7, simultaneously, open the shut-off means that the external connecting pipe road of vent 8 is arranged, then the flue gas of discharging from exhaust heat boiler can enter desulfurization or the device such as denitration or dedusting by water-sealing valve; When desulfurization or the device such as denitration or dedusting can not normally use because of maintenance or other reasons, the drain in liquid storage tank 4 can be made, meanwhile, the shut-off means that arranges on the external connecting pipe road closing vent 8, make flue gas through water-sealing valve by exhaust heat boiler directly discharged to chimney.
Visible, water-sealing valve in the present embodiment can be communicated with exhaust heat boiler and chimney and exhaust heat boiler and desulfurizer respectively, the very near and peripheral space of distance between the exhaust heat boiler and chimney of catalytic cracking system is very under stressful situation, the setting of pipeline between exhaust heat boiler and desulfurizer or valve can be reduced, improve space availability ratio.
In addition, suction tude 1 can also be connected at the air intake 2 of housing 3, air outlet 5 can also connect steam outlet pipe 6, so that the connection of water-sealing valve and exhaust heat boiler or water-sealing valve and chimney, do not need to configure separately again and the suitable pipeline of air intake 2 and air outlet 5, facilitate the installation of water-sealing valve and other equipment rooms.
Except above-mentioned water-sealing valve, the utility model also provides a kind of catalytic cracking system comprising water-sealing valve disclosed in above-described embodiment, this catalytic cracking system is owing to employing above-mentioned water-sealing valve, be conducive to the floor space of saving system, improve the utilization ratio to space, the structure of other each several parts of this catalytic cracking system please refer to prior art, repeats no more herein.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
Set forth this reality principle of the present utility model and mode of execution above, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (6)
1. a water-sealing valve, it is characterized in that, comprise the housing (3) of hollow, described housing (3) is provided with air intake (2) and air outlet (5), the inside of described housing (3) is provided with opening up liquid storage tank (4), the inner roof wall of described housing (3) is connected with the inside that is inserted in described liquid storage tank (4) and leaves the partitions (7) in gap with the inner bottom surface of described liquid storage tank (4), described liquid storage tank (4) liquid storage and under the state of liquid level higher than described partitions (7) lower end surface, gas passageway between described air intake (2) and described air outlet (5) is cut off by described partitions (7).
2. water-sealing valve according to claim 1, it is characterized in that, described liquid storage tank (4) comprises the first partition panel and the second partition panel that set gradually to described air outlet (5) direction along described air intake (2), and side and the base of the side of described first partition panel and base, described second partition panel all fit with the internal face of described housing (3).
3. water-sealing valve according to claim 2, is characterized in that, described partitions (7) is dull and stereotyped, and the side of described partitions (7) and end face all fit with described internal face.
4. the water-sealing valve according to claims 1 to 3 any one, it is characterized in that, described housing (3) being positioned at the vent (8) be also provided with between described air intake (2) with described partitions (7) for being connected desulfurizer, denitrification apparatus or dust removal apparatus.
5. water-sealing valve according to claim 1, is characterized in that, described air intake (2) is also connected with suction tude (1), and described air outlet (5) are also connected with steam outlet pipe (6).
6. a catalytic cracking system, comprises fume pipe and water-sealing valve, it is characterized in that, described water-sealing valve is the water-sealing valve described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022707.9U CN205226479U (en) | 2015-12-10 | 2015-12-10 | Catalytic cracking system and water seal valve thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022707.9U CN205226479U (en) | 2015-12-10 | 2015-12-10 | Catalytic cracking system and water seal valve thereof |
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| Publication Number | Publication Date |
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| CN205226479U true CN205226479U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521022707.9U Active CN205226479U (en) | 2015-12-10 | 2015-12-10 | Catalytic cracking system and water seal valve thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469026A (en) * | 2018-03-14 | 2018-08-31 | 黎加焕 | A kind of conveying device of the hydrogen and oxygen gas mixture of muzzle flash better quality |
| CN109647057A (en) * | 2019-02-01 | 2019-04-19 | 扬州石化有限责任公司 | A kind of device and method for reducing dust content in MCP device flue gas |
-
2015
- 2015-12-10 CN CN201521022707.9U patent/CN205226479U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469026A (en) * | 2018-03-14 | 2018-08-31 | 黎加焕 | A kind of conveying device of the hydrogen and oxygen gas mixture of muzzle flash better quality |
| CN109647057A (en) * | 2019-02-01 | 2019-04-19 | 扬州石化有限责任公司 | A kind of device and method for reducing dust content in MCP device flue gas |
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