CN110479050B - Steam regeneration zero-gas-consumption adsorption type drying equipment and system - Google Patents
Steam regeneration zero-gas-consumption adsorption type drying equipment and system Download PDFInfo
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- CN110479050B CN110479050B CN201910878000.4A CN201910878000A CN110479050B CN 110479050 B CN110479050 B CN 110479050B CN 201910878000 A CN201910878000 A CN 201910878000A CN 110479050 B CN110479050 B CN 110479050B
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- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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Abstract
The invention discloses a steam regeneration zero-gas-consumption adsorption type drying system which comprises a first tank body and a second tank body, wherein the first tank body and the second tank body are used for drying wet air, and drying agents are filled in the first tank body and the second tank body; the first tank body is communicated with the second tank body through a first pipeline and a second pipeline for wet air circulation, the first pipeline is connected with a wet air source, and the second pipeline can discharge wet air; the first tank body is communicated with the second tank body through a third pipeline and a fourth pipeline for steam circulation; the third pipeline and the fourth pipeline are both connected with a steam source; and after the steam is introduced into the first tank body and the second tank body, the drying agent is heated to be dehydrated, and the dehydrated drying agent can be used for drying the wet air. The invention utilizes low-pressure steam to replace electric heating and does not use compressed air to regenerate the drying agent, thereby achieving the purposes of utilizing low-pressure energy, saving electric energy and consumption of compressed air, completely meeting the recycling of energy required by production by novel equipment and saving energy and reducing consumption.
Description
Technical Field
The invention relates to the field of energy, in particular to steam regeneration zero-gas-consumption adsorption type drying equipment and a system.
Background
The use of compressed air in various industries is common, and along with the improvement of the production refinement degree of China, cleaner and drier compressed air is increasingly required to be used. Various production plants adopt energy-saving factory designs, various low-pressure steam is generated at the same time, but the drying equipment of compressed air adopts electric heating or blast air external heating to regenerate the drying agent, so that a large amount of electric energy and loss of the compressed air are consumed.
The inventor thinks that the electric heating is a heating form, which has the advantages of easy control, convenience and easy use, but the air heated by electricity has low energy utilization efficiency, generally speaking, resistance heating and induction heating are two common electric heating forms, the energy utilization rate of the resistance heating is influenced by the specifically adopted resistance, and the energy conversion rate is generally about 80%; the energy conversion rate of induction heating is about 90%, and air is used as a medium with lower specific heat capacity, so that the efficiency of direct heating is not high.
The inventor also believes that the low pressure steam and the desiccant can be brought into equilibrium circulation state by certain means in the low pressure steam drying process, thereby reducing or replacing the use of electric heating.
Disclosure of Invention
The invention aims to provide steam regeneration zero-gas-consumption adsorption drying equipment and a system, aiming at the defects that the conventional drying equipment for compressed air still adopts electric heating or blast external heating to regenerate a drying agent and consumes a large amount of electric energy and the loss of the compressed air.
The invention aims to provide steam regeneration zero-gas-consumption adsorption drying equipment.
The invention provides a steam regeneration zero-gas consumption adsorption drying system.
In order to realize the purpose, the invention discloses the following technical scheme:
the invention discloses a steam regeneration zero-gas-consumption adsorption type drying system which comprises a first tank body and a second tank body, wherein the first tank body and the second tank body are used for drying wet air, and drying agents are filled in the first tank body and the second tank body;
the first tank body is communicated with the second tank body through a first pipeline and a second pipeline for wet air circulation, the first pipeline is connected with a wet air source, and the second pipeline can discharge wet air;
the first tank body is communicated with the second tank body through a third pipeline and a fourth pipeline for steam circulation; the third pipeline and the fourth pipeline are both connected with a steam source;
and after the steam is introduced into the first tank and the second tank, the drying agent is dehydrated, and the dehydrated drying agent can be used for drying the wet air.
According to the invention, the first tank body and the second tank body are arranged at intervals, so that the wet air drying or drying agent regeneration process is simultaneously and respectively carried out in the first tank body and the second tank body, the drying efficiency of the wet air is improved, and the use of energy is saved.
Further, the first tank body is communicated with the second tank body through a first pipeline and a second pipeline.
Further, the first pipeline and the second pipeline are communicated through a communication sub-pipeline.
Further, the third pipeline and the fourth pipeline are respectively communicated with a steam inlet pipeline and a steam outlet pipeline; the steam inlet pipeline and the steam outlet pipeline are respectively provided with an electric valve, the inside of the first tank body and the inside of the second tank body are respectively provided with a temperature sensor, and the electric valves and the temperature sensors are both connected with a controller.
Further, the first pipeline and the second pipeline are respectively provided with a plurality of pneumatic valves.
Further, the third pipeline and the fourth pipeline are respectively provided with a plurality of pneumatic valves and electric valves.
Furthermore, the first pipeline is also communicated with a first sub-pipeline, and two ends of the first sub-pipeline are both communicated with the first pipeline; the second pipeline is also communicated with a second sub-pipeline, and two ends of the second sub-pipeline are both communicated with the second pipeline; the first sub-pipeline and the second sub-pipeline are communicated through a communicating sub-pipeline.
Further, the first tank body and the second tank body are pressure vessels.
The invention discloses a steam regeneration zero-gas-consumption adsorption type drying method, which comprises the following steps:
1) after the wet air enters the first tank body or the second tank body, the air is dehydrated through the drying agent, and the drying agent absorbs water;
2) when the wet air enters the first tank body, steam is introduced into the second tank body, so that the drying agent is dehydrated, and the dehydrated drying agent can be used for drying the wet air; when the wet air enters the second tank, steam is introduced into the first tank, so that the desiccant is dehydrated, and the dehydrated desiccant can be used for drying the wet air.
In step 2), the temperature of the steam in the first tank body or the second tank body is greater than or equal to the regeneration temperature of the drying agent.
Compared with the prior art, the invention has the following beneficial effects:
1) compared with the traditional drying method, the method can utilize low-pressure steam widely existing in enterprises to perform cyclic treatment on the compressed air drying agent, and meanwhile, the drying agents in the two tanks can be used in a cyclic reciprocating manner due to the cyclic drying treatment on the compressed air drying agent, so that the drying agent is prevented from being replaced in a short time, and the drying efficiency of the compressed air is improved.
2) In the invention, the states of the steam in the third pipeline and the fourth pipeline are controlled by adopting the temperature sensor and the electric valve so as to ensure that the steam reaches a certain temperature under a certain pressure, so that the drying agent can be recycled.
3) In the invention, the first pipeline and the second pipeline are communicated through the communicating sub-pipeline, so that wet compressed air from the first pipeline and the second pipeline can be balanced in air pressure after entering the first tank body and the second tank body to a certain extent, thereby improving the circulation speed of the wet compressed air and the drying speed.
4) According to the steam-operated valve, the third pipeline and the fourth pipeline are respectively provided with the pneumatic valves and the electric valves, the pneumatic valves and the electric valves can control steam flowing in the third pipeline and the fourth pipeline, the situation that the steam is difficult to control in the flowing process is prevented, the pneumatic valves are simple to control, the reaction is rapid and safe, and extra explosion-proof measures are not needed in flammable and explosive occasions.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a detailed structural view of embodiment 1.
In the figure, 1, a first valve, 2, a second valve, 3, a third valve, 4, a fourth valve, 5, a fifth valve, 6, a sixth valve, 7, a seventh valve, 8, an eighth valve, 9, a ninth valve, 10, a tenth valve, 11, an eleventh valve, 12, a twelfth valve, 13, a thirteenth valve, 14, a fourteenth valve, 15, a fifteenth valve, 16, a sixteenth valve, 20, a first drying tank safety valve, 21, a first condensed water discharge automatic liquid level valve, 22, a second drying tank safety valve, 23, a second condensed water discharge automatic liquid level valve, 100, a first tank body, 101, a first inlet/outlet, 102, a second inlet/outlet, 103, a third inlet/outlet, 104, a fourth inlet/outlet, 205, a fifth inlet/outlet, 206, a sixth inlet/outlet, 207, a seventh inlet/outlet, 208, and an eighth inlet/outlet.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, aiming at the defects that the existing drying equipment for compressed air still adopts electric heating or blast external heating to regenerate the drying agent, consumes a large amount of electric energy and the loss of the compressed air, the invention aims to provide the steam regeneration zero-gas-consumption adsorption type drying equipment and the system.
Example 1
In the embodiment, a steam regeneration zero-gas consumption adsorption drying system is disclosed, which includes two tanks for steam regeneration drying, in the embodiment, the two tanks are respectively referred to as a first tank 100 and a second tank 200, and the first tank 100 and the second tank 200 are connected by a plurality of pipes.
Specifically, the first tank 100 and the second tank 200 are both provided with a plurality of inlets and outlets; wherein, the first tank 100 is provided with a first inlet and outlet 101, a second inlet and outlet 102, a third inlet and outlet 103 and a fourth inlet and outlet 104, the first inlet and outlet 101 and the third inlet and outlet 103 are arranged on the two bottom side parts of the first tank 100, and the second inlet and outlet 102 and the fourth inlet and outlet 104 are arranged on the curved surface part of the first tank 100; the second tank 200 is provided with a fifth port 205, a sixth port 206, a seventh port 207, and an eighth port 208, the fifth port 205 and the seventh port 207 are provided at both bottom side portions of the second tank 200, and the sixth port 206 and the eighth port 208 are provided at a curved surface portion of the second tank 200.
A plurality of pipelines constitute the pipe network, and its concrete structure is as follows:
the first pipeline is communicated with a first tank 100 through a first inlet and outlet 101, the first pipeline is also communicated with a second tank 200 through a fifth inlet and outlet 205, the first pipeline is provided with a first valve 1 and a second valve 2, and the first pipeline between the first valve 1 and the second valve 2 is communicated with a compressed air discharge pipeline; the first pipeline section outside the first valve 1 and the second valve 2 is also communicated through a first sub-pipeline, and the first sub-pipeline is also provided with a third valve 3 and a fourth valve 4.
The second pipeline is communicated with the first tank body 100 and the second tank body 200 through a fourth inlet and outlet 104 and an eighth inlet and outlet 208, the second pipeline is further provided with a fifth valve 5 and a sixth valve 6, and the second pipeline between the fifth valve 5 and the sixth valve 6 is also communicated with a compressed air inlet pipeline; and the sixth pipeline section except the fifth valve 5 and the sixth valve 6 is also communicated through a second sub-pipeline, and the second sub-pipeline is also provided with a seventh valve 7 and an eighth valve 8.
The first sub-pipeline is communicated with the second sub-pipeline, and specifically, the first sub-pipeline between the third valve 3 and the fourth valve 4 is communicated with the second sub-pipeline between the fifth valve 5 and the sixth valve 6 through the communicating sub-pipeline.
A third conduit is also included and communicates with the second port 102 and the sixth port 206. The third pipeline is provided with a ninth valve 9, a tenth valve 10, an eleventh valve 11 and a twelfth valve 12; wherein, the third pipeline section between the tenth valve 10 and the eleventh valve 11 is communicated with a steam inlet pipeline, and the steam inlet pipeline is provided with a thirteenth valve 13.
And the fourth pipeline is communicated with the third inlet and outlet 103 and the seventh inlet and outlet 207. The fourth pipeline is provided with a fourteenth valve 14 and a fifteenth valve 15; wherein, the fourth pipeline section between the fourteenth valve 14 and the fifteenth valve 15 is communicated with the steam outlet pipeline, and the steam outlet pipeline is provided with a sixteenth valve 16.
The first pipeline and the second pipeline are used for inlet and outlet of compressed air, and the third pipeline and the fourth pipeline are used for inlet and outlet of steam.
It is noted that the ninth valve 9 and the twelfth valve 12 are pneumatic valves. The tenth valve 10, the eleventh valve 11, the thirteenth valve 13, the fourteenth valve 14, the fifteenth valve 15, and the sixteen valves are electrically operated valves. The first valve 1-the eighth valve 8 are all pneumatic valves.
It should be further noted that the first and second tanks 100 and 200 are further connected to communicate with a first condensate drain automatic level valve 21 and a second condensate drain automatic level valve 23, respectively, for draining the desiccant.
The first tank 100 and the second tank 200 are further connected to communicate with a first dry tank safety valve 20 and a second dry tank safety valve 22, respectively, for ensuring safe operation of the equipment without overpressure.
The first tank 100 and the second tank 200 employ pressure vessels.
It should be noted that the steam used in this embodiment is low-pressure steam, and the steam heating method used in this embodiment removes moisture in the desiccant, and the moisture is discharged outside the tank body, thereby realizing regeneration of the desiccant.
Example 2
Example 3
and (3) drying: the wet compressed air enters from the end A of the compressed air inlet pipeline, passes through the second pipeline and enters the first tank body 100 for drying, and the dried compressed air passes through the first pipeline and is sent out of the compressed air discharge pipeline to obtain the dried compressed air.
Regeneration: at the same time of the drying step, part of compressed air is introduced into the second tank body 200 through the first pipeline and the second pipeline to carry out system pressure equalization; meanwhile, the thirteenth valve 13 and the sixteenth valve 16 are opened, and the twelfth valve 12 controls the flow rate by monitoring the adjustment opening degree of the temperature in the second tank 200; after the steam is introduced into the second tank 200, the temperature is raised, the desiccant is dehydrated by the regenerated desiccant, and the dehydrated water is discharged through a second electronic liquid level drain valve;
continuing the drying step, wherein wet compressed air enters from the end A of the compressed air inlet pipeline, passes through the second pipeline and firstly enters the second tank body 200 for drying, and the dried compressed air passes through the first pipeline and is sent out of the compressed air discharge pipeline to obtain dried compressed air;
continuing the regeneration step: in the drying step, part of compressed air is introduced into the first tank body 100 through the first pipeline and the second pipeline to carry out system pressure equalization; meanwhile, the thirteenth valve 13 and the sixteenth valve 16 are opened, and the ninth valve 9 controls the flow rate by monitoring the adjustment opening degree of the temperature in the first tank 100; after the steam is introduced into the first tank 100, the temperature is raised, the desiccant is dehydrated by the regenerated desiccant, and the dehydrated water is discharged through a second electronic liquid level drain valve;
the above steps are repeated.
Because the first tank 100 and the second tank 200 are provided in this embodiment, after the desiccant in the first tank 100 is dried, the wet compressed air can be introduced into the first tank 100; after the desiccant in the second tank 100 is dried, wet compressed air can be introduced into the second tank 100; the valve control can be used to determine what substance is in the first tank 100 or the second tank 200.
According to the steam heating drying theory, the temperature of the steam in the first tank body or the second tank body is required to be more than or equal to the regeneration temperature of the drying agent.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A steam regeneration zero-gas-consumption adsorption type drying system is characterized by comprising a first tank body and a second tank body, wherein the first tank body and the second tank body are used for drying wet air, and drying agents are filled in the first tank body and the second tank body;
the first tank body is communicated with the second tank body through a first pipeline and a second pipeline for wet air circulation, the first pipeline is connected with a wet air source, and the second pipeline can discharge wet air;
the first pipeline is provided with a first valve and a second valve, the first pipeline sections except the first valve and the second valve are communicated through a first sub-pipeline, the first sub-pipeline is also provided with a third valve and a fourth valve, the second pipeline is also provided with a fifth valve and a sixth valve, the sixth pipeline sections except the fifth valve and the sixth valve are also communicated through a second sub-pipeline, the second sub-pipeline is also provided with a seventh valve and an eighth valve, and the first sub-pipeline is communicated with the second sub-pipeline;
the first tank body is communicated with the second tank body through a third pipeline and a fourth pipeline for steam circulation; the third pipeline and the fourth pipeline are both connected with a steam source;
after the steam is introduced into the first tank body and the second tank body, the temperature of the steam in the first tank body or the second tank body is larger than or equal to the regeneration temperature of the drying agent, so that the drying agent is dehydrated, and the dehydrated drying agent can be used for drying wet air.
2. The steam regeneration zero gas consumption adsorption drying system of claim 1, wherein the first pipeline and the second pipeline are communicated through a communication sub-pipeline.
3. The steam regeneration zero gas consumption adsorption drying system of claim 1, wherein the third pipeline and the fourth pipeline are respectively communicated with a steam inlet pipeline and a steam outlet pipeline; the steam inlet pipeline and the steam outlet pipeline are respectively provided with an electric valve, the inside of the first tank body and the inside of the second tank body are respectively provided with a temperature sensor, and the electric valves and the temperature sensors are both connected with a controller.
4. The steam regeneration zero gas consumption adsorption drying system of claim 1, wherein the first and second conduits are each provided with a plurality of pneumatic valves.
5. The steam regeneration zero gas consumption adsorption drying system of claim 1, wherein the third and fourth conduits are provided with a plurality of pneumatic and electric valves, respectively.
6. The steam regeneration zero gas consumption adsorption drying system of claim 1, wherein the first pipeline is further communicated with a first sub-pipeline, and both ends of the first sub-pipeline are communicated with the first pipeline; the second pipeline is also communicated with a second sub-pipeline, and two ends of the second sub-pipeline are both communicated with the second pipeline; the first sub-pipeline and the second sub-pipeline are communicated through a communicating sub-pipeline.
7. The steam regeneration zero gas consumption adsorption drying system of claim 1, wherein the first tank and the second tank are pressure vessels.
8. The drying method of the steam regeneration zero-gas-consumption adsorption drying system according to any one of claims 1 to 7, characterized by comprising the following steps:
1) after the wet air enters the first tank body or the second tank body, the air is dehydrated through the drying agent, and the drying agent absorbs water;
2) when the wet air enters the first tank body, steam is introduced into the second tank body, so that the drying agent is dehydrated, and the dehydrated drying agent can be used for drying the wet air; when the wet air enters the second tank, steam is introduced into the first tank, so that the desiccant is dehydrated, and the dehydrated desiccant can be used for drying the wet air.
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| CN201910878000.4A CN110479050B (en) | 2019-09-17 | 2019-09-17 | Steam regeneration zero-gas-consumption adsorption type drying equipment and system |
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| CN101301560B (en) * | 2007-05-09 | 2011-06-22 | 成都华西化工研究所 | Comprehensive utilization method of sintered pollutant |
| CN101637692B (en) * | 2008-07-30 | 2011-12-21 | 山东省冶金设计院股份有限公司 | Regenerating desulfurization process for sintering machine |
| US8833081B2 (en) * | 2011-06-29 | 2014-09-16 | Alstom Technology Ltd | Low pressure steam pre-heaters for gas purification systems and processes of use |
| CN204261537U (en) * | 2014-11-05 | 2015-04-15 | 中国华能集团清洁能源技术研究院有限公司 | A kind of is CO before burning 2the device of trapping system supply steam |
| CN205007829U (en) * | 2015-09-23 | 2016-02-03 | 杭州赛虎空分设备有限公司 | Utilize low pressure vapour blast air regeneration gas to adsorb formula zero and consume gas desiccator |
| CN105148680A (en) * | 2015-09-23 | 2015-12-16 | 杭州赛虎空分设备有限公司 | Adsorption type zero-gas-consumption drying machine by means of low-pressure steam blast regeneration gas |
| CN107198913A (en) * | 2016-03-18 | 2017-09-26 | 中国石油化工股份有限公司 | Decahydronaphthalene washes recovery process in waste gas |
| CN206473995U (en) * | 2017-02-09 | 2017-09-08 | 深圳市瑞荣升科技有限公司 | Compressed air drying system |
| CN206676377U (en) * | 2017-03-17 | 2017-11-28 | 广东环球净化科技有限公司 | Regenerative dryer system |
| CN206980426U (en) * | 2017-03-20 | 2018-02-09 | 杭州山立净化设备股份有限公司 | Energy-saving type electrical heating formula compression heat regeneration absorption drier |
| CN107854956A (en) * | 2017-11-03 | 2018-03-30 | 成都来宝石油设备有限公司 | Waste gas processing method based on activated carbon |
| CN208952538U (en) * | 2018-09-13 | 2019-06-07 | 宁波震飞塑机制造有限公司 | A kind of drying machine for capableing of high accuracy temperature control |
| CN109364704B (en) * | 2018-11-29 | 2024-05-07 | 宁波杭州湾新区祥源动力供应有限公司 | Compressed air supply system based on steam heating regeneration |
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