CN210474010U - Device for activating molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen - Google Patents
Device for activating molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen Download PDFInfo
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- CN210474010U CN210474010U CN201921303194.7U CN201921303194U CN210474010U CN 210474010 U CN210474010 U CN 210474010U CN 201921303194 U CN201921303194 U CN 201921303194U CN 210474010 U CN210474010 U CN 210474010U
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Abstract
The utility model discloses a device for activating a molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen, which comprises an air separation tower, a heating device, a purifying device and an emptying device which are connected in sequence, wherein the air separation tower can process industrial waste gas and provide the waste nitrogen for the heating device; an electric heater, a middle through pipe and a steam heater are communicated in parallel in the heating device, and the steam heater is communicated with waste heat steam through a waste heat steam pipe; the purification device is filled with a molecular sieve. The device can fully utilize waste heat steam and electrically heat and activate the molecular sieve to play the roles of saving energy and electricity.
Description
Technical Field
The utility model relates to an activation of molecular sieve specifically, relates to an utilize waste heat steam and/or the dirty nitrogen activation molecular sieve's of electrical heating device.
Background
Molecular sieves are crystalline silicates or aluminosilicates formed from silicon-oxygen tetrahedra or aluminum-oxygen tetrahedra connected by oxygen bridges. Molecular sieves are aluminosilicate compounds having a cubic lattice. The molecular sieve has a uniform microporous structure, and the pores have uniform diameter, can adsorb molecules smaller than the diameter of the pores into the pores, and have preferential adsorption capacity for polar molecules and unsaturated molecules, so that the molecular sieve can separate the molecules with different polarity degrees, saturation degrees, molecular sizes and boiling points, namely has the function of sieving the molecules, and is called as the molecular sieve. The molecular sieve has the advantages of high adsorption capacity, strong thermal stability and the like which are not possessed by other adsorbents, so that the molecular sieve can be widely applied.
In the actual production process, due to improper operation or the absorption of some substances into the molecular sieve, the molecular sieve loses activity and thus loses adsorption capacity. Once deactivated, the molecular sieve needs to be activated. In a factory, the molecular sieve is regenerated by electrically heating polluted nitrogen gas, which is a common activation mode; this method not only consumes much power, but also has a long periodicity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an utilize waste heat steam and/or the dirty nitrogen activation molecular sieve's of electrical heating device, the device make full use of waste heat steam, electrical heating activation molecular sieve can play energy-conserving power saving's effect.
In order to achieve the purpose, the utility model provides a device for activating a molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen, which comprises an air separation tower, a heating device, a purifying device and an emptying device which are connected in sequence, wherein the air separation tower can process industrial waste gas and provide the waste nitrogen for the heating device; an electric heater, a middle through pipe and a steam heater are communicated in parallel in the heating device, and the steam heater is communicated with waste heat steam through a waste heat steam pipe; the purification device is filled with a molecular sieve.
Preferably, the air inlet of the middle through pipe is positioned between the air inlet of the electric heater and the air inlet of the steam heater; and the air inlet of the steam heater is arranged before the air inlet of the electric heater along the flowing direction of the polluted nitrogen.
Preferably, a first valve is arranged between the air inlet of the steam heater and the air separation tower; a second valve is arranged between the air inlet of the middle through pipe and the air inlet of the steam heater.
Preferably, the electric heater consists of at least two heating units connected in parallel; and a third valve is arranged on the air inlet of the heating unit, and a fifth valve is arranged on the air outlet of the heating unit.
Preferably, the air inlet and the air outlet of the steam heater are both provided with a fifth valve.
Preferably, a sixth valve is arranged on the middle through pipe.
Preferably, the air outlet of the middle through pipe is positioned between the air outlet of the electric heater and the air outlet of the steam heater, and a seventh valve is arranged between the air outlet of the middle through pipe and the air outlet of the electric heater.
Preferably, the purification device consists of at least two purification units connected in parallel; and an eighth valve is arranged on the air inlet of the purification unit, and a ninth valve is arranged on the air outlet of the purification unit.
Preferably, the device is controlled by a DCS control system, and the exchange period of the device is 4-6 h.
According to the technical scheme, the utility model provides a waste heat steam and/or the operating principle of the dirty nitrogen gas activation molecular sieve's of electrical heating device does: the waste nitrogen is heated by the heating device, and the generated high-temperature and dry waste nitrogen can resolve and discharge the moisture, carbon dioxide and hydrocarbon inside the molecular sieve in the purifying device, so that the purifying system can recover the adsorption capacity; wherein, when the steam pressure is enough, the steam heater is used alone (energy saving and consumption reduction); when the steam pressure is insufficient, the steam heater is connected with the existing electric heater in parallel (energy saving and consumption reduction); when the steam heater fails, the electric heater is used alone. Therefore, the device has the advantages of electricity consumption saving, small occupied area, simplified process flow and low investment.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a preferred embodiment of the device for activating a molecular sieve by using waste heat steam and/or electrically heated dirty nitrogen provided by the present invention.
Description of the reference numerals
1. Air separation column 2, purification unit
3. Heating unit 4, steam heater
5. Emptying device 6, waste heat steam pipe
7. Middle through pipe 8 and first valve
9. Second valve 10, third valve
11. Fourth valve 12, fifth valve
13. Sixth valve 14, seventh valve
15. Eighth valve 16, ninth valve
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, inner, outer, front, rear" and the like included in the terms only represent the orientation of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
The utility model provides a device for activating molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen, as shown in figure 1, comprising an air separation tower 1, a heating device, a purifying device and an emptying device 5 (used for discharging gas) which are connected in sequence, wherein the air separation tower 1 can process industrial waste gas and provide waste nitrogen for the heating device; an electric heater, a middle through pipe 7 and a steam heater 4 are communicated in the heating device in parallel, and the steam heater 4 is communicated with waste heat steam through a waste heat steam pipe 6; the purification device is filled with a molecular sieve.
The working principle of the device for activating the molecular sieve by waste heat steam and/or electric heating of the waste nitrogen gas is as follows: the waste nitrogen is heated by the heating device, and the generated high-temperature and dry waste nitrogen can resolve and discharge the moisture, carbon dioxide and hydrocarbon inside the molecular sieve in the purifying device, so that the purifying system can recover the adsorption capacity; wherein, when the steam pressure is enough, the steam heater is used alone (energy saving and consumption reduction); when the steam pressure is insufficient, the steam heater is connected with the existing electric heater in parallel (energy saving and consumption reduction); when the steam heater fails, the electric heater is used alone. Therefore, the device has the advantages of electricity consumption saving, small occupied area, simplified process flow and low investment. Wherein, under the condition that both the electric heater and the steam heater 4 have faults, the middle through pipe 7 can effectively discharge the polluted nitrogen.
In the above embodiment, in order to further facilitate the control of the flow direction of the dirty nitrogen gas, it is preferable that the air inlet of the middle through pipe 7 is located between the air inlet of the electric heater and the air inlet of the steam heater 4; and, the inlet of the steam heater 4 is before the inlet of the electric heater along the flow direction of the dirty nitrogen gas. More preferably, the middle through pipe 7 is provided with a sixth valve 13; further preferably, the air outlet of the through-pipe 7 is located between the air outlet of the electric heater and the air outlet of the steam heater 4, and a seventh valve 14 is arranged between the air outlet of the through-pipe 7 and the air outlet of the electric heater.
In the above embodiment, in order to quickly start the middle through pipe 7 in the case of a failure of both the electric heater and the steam heater 4, it is preferable that a first valve 8 is provided between the air inlet of the steam heater 4 and the air separation column 1; a second valve 9 is arranged between the air inlet of the middle through pipe 7 and the air inlet of the steam heater 4.
In the present invention, in order to further improve the heating effect of the electric heater and control the flow direction of the polluted nitrogen gas, preferably, the electric heater is composed of at least two heating units 3 connected in parallel; a third valve 10 is arranged on the air inlet of the heating unit 3, and a fourth valve 11 is arranged on the air outlet of the heating unit 3.
In the present invention, in order to further control the flow direction of the polluted nitrogen gas to enter and exit on the steam heater 4, preferably, the fifth valve 12 is disposed on the air inlet and the air outlet of the steam heater 4.
In the present invention, in order to further improve the purification effect of the purification apparatus, it is preferable that the purification apparatus is composed of at least two purification units 2 connected in parallel; an eighth valve 15 is arranged on the air inlet of the purification unit 2, and a ninth valve 16 is arranged on the air outlet of the purification unit 2.
Finally, in order to realize intelligent operation, preferably, the device is controlled by a DCS control system, and the exchange period of the device is 4-6 h; and then realized the automatic switch-over of device, and then can avoid personnel on duty.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (8)
1. The device for activating the molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen is characterized by comprising an air separation tower (1), a heating device, a purifying device and an emptying device (5) which are sequentially connected, wherein the air separation tower (1) can process industrial waste gas and provide the waste nitrogen for the heating device; an electric heater, a middle through pipe (7) and a steam heater (4) are communicated in the heating device in parallel, and the steam heater (4) is communicated with waste heat steam through a waste heat steam pipe (6); the purification device is internally filled with a molecular sieve.
2. The device for activating the molecular sieve by using waste heat steam and/or electrically heated dirty nitrogen gas as claimed in claim 1, wherein the air inlet of the middle through pipe (7) is positioned between the air inlet of the electric heater and the air inlet of the steam heater (4); and the air inlet of the steam heater (4) is arranged before the air inlet of the electric heater along the flowing direction of the dirty nitrogen.
3. The device for activating the molecular sieve by using waste heat steam and/or electrically heated waste nitrogen gas as claimed in claim 1, wherein a first valve (8) is arranged between the air inlet of the steam heater (4) and the air separation tower (1); a second valve (9) is arranged between the air inlet of the middle through pipe (7) and the air inlet of the steam heater (4).
4. The device for activating the molecular sieve by using waste heat steam and/or electrically heated dirty nitrogen gas as claimed in claim 1, characterized in that the electric heater is composed of at least two heating units (3) connected in parallel; a third valve (10) is arranged on the air inlet of the heating unit (3), and a fourth valve (11) is arranged on the air outlet of the heating unit (3).
5. The device for activating the molecular sieve by using waste heat steam and/or electrically heated waste nitrogen gas as claimed in claim 1, wherein a fifth valve (12) is arranged on each of the air inlet and the air outlet of the steam heater (4).
6. The device for activating the molecular sieve by using waste heat steam and/or electrically heated waste nitrogen gas as claimed in claim 1, wherein a sixth valve (13) is arranged on the middle through pipe (7).
7. The device for activating the molecular sieve by using waste heat steam and/or electrically heated waste nitrogen gas as claimed in claim 1, wherein the air outlet of the middle through pipe (7) is positioned between the air outlet of the electric heater and the air outlet of the steam heater (4), and a seventh valve (14) is arranged between the air outlet of the middle through pipe (7) and the air outlet of the electric heater.
8. The device for activating molecular sieves by using waste heat steam and/or electrically heated dirty nitrogen gas as claimed in claim 1, characterized in that the purification device is composed of at least two purification units (2) connected in parallel; an eighth valve (15) is arranged on the air inlet of the purification unit (2), and a ninth valve (16) is arranged on the air outlet of the purification unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303194.7U CN210474010U (en) | 2019-08-12 | 2019-08-12 | Device for activating molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303194.7U CN210474010U (en) | 2019-08-12 | 2019-08-12 | Device for activating molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen |
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| CN210474010U true CN210474010U (en) | 2020-05-08 |
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| CN201921303194.7U Active CN210474010U (en) | 2019-08-12 | 2019-08-12 | Device for activating molecular sieve by utilizing waste heat steam and/or electric heating waste nitrogen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327906A (en) * | 2019-08-12 | 2019-10-15 | 芜湖新兴铸管有限责任公司 | Utilize afterheat steam and/or the device of electric heating dirt nitrogen activation molecular sieve |
-
2019
- 2019-08-12 CN CN201921303194.7U patent/CN210474010U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327906A (en) * | 2019-08-12 | 2019-10-15 | 芜湖新兴铸管有限责任公司 | Utilize afterheat steam and/or the device of electric heating dirt nitrogen activation molecular sieve |
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