CN209322813U - A kind of biogas WATER-WASHING METHOD purification system of convenient control - Google Patents
A kind of biogas WATER-WASHING METHOD purification system of convenient control Download PDFInfo
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- CN209322813U CN209322813U CN201822156475.6U CN201822156475U CN209322813U CN 209322813 U CN209322813 U CN 209322813U CN 201822156475 U CN201822156475 U CN 201822156475U CN 209322813 U CN209322813 U CN 209322813U
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Abstract
The utility model discloses a kind of biogas WATER-WASHING METHOD purification systems of convenient control, including pass through sequentially connected first surge tank of pipeline, biogas compressor, absorption tower, level-one Analytic Tower, second level Analytic Tower, dehydration device, the second surge tank, air blower and technique water pump；It further include having monitoring assembly, action component and PLC, the output end of monitoring assembly is separately connected the input terminal of PLC, the input terminal of the output end connecting moves component of PLC.The utility model is by increasing regulating valve, far transmission level meter and pressure transmitter in key position, to allow the data of whole system to be focused on and be controlled, pass through the programming technique of corresponding existing maturation, pressure automatic control can be realized, product quality automatically controls, alarm interlocking start-up and shut-down control and liquid level dynamic are controlled to promote and improve the realization of the convenient control of methane purification system equipment, it remotely operate entire purification system realization completely can, but also improve the safety and stability of system operation.
Description
Technical field
The utility model relates to methane purification technical field more particularly to a kind of biogas WATER-WASHING METHOD of convenient control purification systems
System.
Background technique
Currently, methane purification is 10% left in the ratio of the energy total amount of West Europe (Germany, Denmark, Sweden etc.) some countries
It is right.Methane purification technology, such as pressurization WATER-WASHING METHOD, chemical absorption method, pressure swing adsorption method and membrane separation process technology have realized business
Change and utilize, wherein pressurization WATER-WASHING METHOD and pressure swing adsorption method Europe methane purification market utilization rate highest, respectively account for 1/3.
At home, methane purification technology is gradually risen in recent years, but the main technique purified, including desulfurization, decarburization and de-
Water is widely used simultaneously mature already in the industrial gas purifyings projects such as synthesis ammonia.In terms of decarburization, mainly there is pressurization to wash
The chemical methods such as the physical methods such as method, pressure swing adsorption method, membrane separation process and MDEA, propene carbonate, wherein pressure WATER-WASHING METHOD and transformation
Absorption method is more mature and stable technique, is suitable for large-sized biogas engineering, and operational reliability is high, and engineering experience is more.
For pressure WATER-WASHING METHOD compared with pressure swing adsorption technique, pressure swing adsorption technique is easy to operate, but investment is relatively large, to natural pond
Gas pre-processing requirements are high, and methane recovery is lower；Pressure WATER-WASHING METHOD has methane high-purity, the advantage of high-recovery, investment
It is relatively low, it is low to biogas pre-processing requirements, but due to needing multiple system interlinks, operating process is relative complex.
As biogas WATER-WASHING METHOD technique itself, due to needing the centrifugal pump high using lift, flow is big, directly initiating can be made
It is excessive at flow, cause supercurrent to run or burn motor, needs artificial valve closing on the spot to start, remote operation can not be securely achieved
And automation control；Purification system operating pressure is adjusted by the dosage of product gas rear end gas station, may when dosage is too fast
Lead to that absorption tower operating pressure is too low and is unable to reach refining effect, it, need to be logical in purification section when there is hang-up such as rear end
Shutdown, artificial release or safety valve automatic relief are crossed, complicated operation, waste and security risk are caused；Tower water storage section height
Excessively high to will lead to device height increase, in turn resulting in increased costs and stability reduces, and height is too low and is easy to cause process water
Circulation is difficult to adjust, the acute variation and fluctuation holding liquid and also result in system liquid level before and after water pump start and stop of packing layer and pipeline, existing
Some equipment needs manually to carry out the operation of complex multi-dimensional in specific control, but it is unstable not only still to will appear control,
And a large amount of manpower of waste.
Utility model content
The purpose of the utility model is to provide a kind of biogas WATER-WASHING METHOD purification systems of convenient control, can be by multiple prisons
Measuring point is automatically analyzed, while multiple valves are arranged and are remotely controlled, to simplify starting or shutdown operation step, directly
Control can be realized in a station, it is ensured that stability, reliability and the safety of system operation, while saving manpower.
The technical solution adopted in the utility model are as follows:
A kind of biogas WATER-WASHING METHOD purification system of convenient control, including pass through sequentially connected first surge tank of pipeline, natural pond
Air compressor, absorption tower, level-one Analytic Tower, second level Analytic Tower, dehydration device, the second surge tank, air blower and technique water pump；Also
It include monitoring assembly, action component and PLC, the output end of monitoring assembly is separately connected the input terminal of PLC, the output end of PLC
The input terminal of connecting moves component；The action component includes the first, second, third, fourth, the 5th, the 6th, the 7th and the
Eight regulating valves, the monitoring assembly include the first, second, third tower far transmission level meter, and first, second, third, fourth
Pressure transmitter, PLC and gas composition analysis instrument；Wherein the setting of the first regulating valve flows back in level-one Analytic Tower and the first surge tank
On pipeline, the second regulating valve is arranged on the return line of biogas compressor and the first surge tank, and the setting of third regulating valve is being inhaled
Tower and level-one Analytic Tower waterway tube road are received, the water route pipeline of level-one Analytic Tower Yu second level Analytic Tower is arranged in the 4th regulating valve
On, the 5th regulating valve is arranged on the waterway tube road of second level Analytic Tower and technique water pump, and the setting of the 6th regulating valve is in the second buffering
On the return line of tank and the first surge tank, the 7th regulating valve is arranged on the natural gas outlet pipe of the second surge tank, and the 8th
Regulating device is arranged on technique water pump and the return line on absorption tower；First, second, third tower far transmission level meter is set respectively
Set absorption tower, level-one Analytic Tower, second level Analytic Tower it is upper, first pressure transmitter be arranged in absorption tower top gas outlet
In road, second pressure transmitter is arranged on level-one Analytic Tower and the first surge tank return line, the setting of third pressure transmitter
On technique pump outlet to the water route of absorption tower import, the 4th pressure transmitter is arranged on the second surge tank, gas point
Analyzer is arranged on the waterway tube road between dehydration device and the second surge tank.
The regulating valve uses pneumatic control valve.
The tower far transmission level meter is using double flange liquid level meters.
The pressure transmitter uses teletransmission pressure transmitter.
The utility model is by increasing regulating valve, far transmission level meter and pressure transmitter in key position, to make whole
The data of a system can be focused on and be controlled, and by the programming technique of corresponding existing maturation, pressure can be realized
It automatically controls, product quality automatically controls, alarm interlocking start-up and shut-down control and liquid level dynamic control are to promote and improve methane purification
The realization of the convenient control of system equipment remotely operate entire purification system realization completely can, but also improve and be
The safety and stability of system operation.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model.
Specific embodiment
As shown in Figure 1, the utility model include by sequentially connected first surge tank 10 of pipeline, biogas compressor 20,
Absorption tower 30, level-one Analytic Tower 40, second level Analytic Tower 50, dehydration device 60, the second surge tank 70, air blower 80 and technique water pump
90；It further include having monitoring assembly, action component, PLC or DCS, the output end of monitoring assembly is separately connected the input of PLC or DCS
The input terminal of the output end connecting moves component of end, PLC or DCS；The action component includes the first regulating valve V1, the second tune
Save valve V2, third regulating valve V3, the 4th regulating valve V4, the 5th regulating valve V5, the 6th regulating valve V6, the 7th regulating valve V7 and the 8th
Regulating valve V8, the monitoring assembly include that the first far transmission level meter 0301, the second far transmission level meter 0302, third tower are remote
Liquidometer 0303 is passed, first pressure transmitter 0306, second pressure transmitter 0305, third pressure transmitter the 0304, the 4th are pressed
Power transmitter 0501, PLC or DCS, gas composition analysis instrument 0502；Wherein the first regulating valve V1 is arranged in 40 He of level-one Analytic Tower
On first surge tank, 10 return line, the return line of biogas compressor 20 and the first surge tank 10 is arranged in the second regulating valve V2
On, third regulating valve V3 is arranged on 40 waterway tube road of absorption tower 30 and level-one Analytic Tower, and the 4th regulating valve V4 is arranged in level-one
The waterway tube of Analytic Tower 40 and second level Analytic Tower 50 road, the 5th regulating valve V5 are arranged in second level Analytic Tower 50 and technique water pump 90
Waterway tube road, the 6th regulating valve V6 is arranged on the return line of the second surge tank 70 and the first surge tank 10, the 7th tune
Section valve V7 is arranged on the natural gas outlet pipe of the second surge tank 70, and the 8th regulating valve V8 setting is in technique water pump 90 and absorbs
The technique water pump 90 of tower 30 exports the waterway tube road into absorption tower 30；First, second, third tower far transmission level meter is set respectively
Set absorption tower 30, level-one Analytic Tower 40, second level Analytic Tower 50 cylinder on, first pressure transmitter 0306 be arranged on absorption tower
On 30 top exit pipelines, second pressure transmitter 0305 is arranged in 10 return line of level-one Analytic Tower 40 and the first surge tank
On, third pressure transmitter 0304 is arranged in technique water pump 90 and exports on the waterway tube road on absorption tower 30, the 4th pressure inverting
Device 0501 is arranged on the second surge tank 70, and gas analyzer 0502 is arranged between dehydration device 60 and the second surge tank 70
Gas circuit pipe road.
Regulating valve described in the utility model is all made of pneumatic control valve, can according to setting value adjust automatically valve aperture and
Switch state.The tower far transmission level meter can remotely monitor real-time level using double flange liquid level meters.The pressure becomes
It send device using teletransmission pressure transmitter, is convenient for remote real-time monitoring data.
As shown in Figure 1, this example include by sequentially connected first surge tank (10) of pipeline, biogas compressor (20),
Absorption tower (30), level-one Analytic Tower (40), second level Analytic Tower (50), dehydration device (60), the second surge tank (70), air blower
(80), technique water pump (90).Each sub- equipment includes one or more equipment in capital equipment component described herein, including
Standby host, can increase the letter such as A, B after number successively to show difference, and to understand convenient for process, more or stand-by equipment are not showing
Illustrate respectively in intention.The utility model is by can be realized opening for equipment by existing programming setting in PLC or DCS
Stop controlling.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Existing system can be made in use using the biogas WATER-WASHING METHOD purification system of convenient control, according to tool
The demand of body carries out the opening/closing time and opening and closing sequence of setting valve, to make whole process, without complicated manual operation, according to
Started on demand by automatically controlling each process of realization, operation, stopping, to make while keeping whole process easy to control
Industry precision greatly improves, so that production capacity is improved, save the cost.
The utility model can be automatically controlled the system that ensures by pressure and be broken down in product gas rear end workshop section, gas station
Shi Jinhang superpressure automatic back flow, purification system realizes internal circulation, without shutting down；
The utility model can ensure the highest control point of absorbing tower liquid-level by alarm interlocking start-up and shut-down control, to avoid suction
The excessively high reverse irrigation of tower liquid level is received to air inlet；Combustible gas alarm interlocking realizes autostop when leaking at the scene.
The utility model can be used liquid level dynamic and control, and when detecting that technique water pump stops, Liquid level is arranged automatically
Value is high liquid level, after detecting process water pump startup, due to tower packing and maintenance liquid in pipeline, it is automatic reduce Liquid level value with
Actual liquid level matching.Only lower water storage section need to be set in tower bottom, process water can be realized stablizes circulation.
The call that scale bio-natural gas project is greatly developed for response country, realizes the comprehensive utilization of renewable energy
With development distributed energy, stalk and livestock and poultry feces is pushed to turn waste into wealth, energy-saving and emission-reduction, research and development use the natural pond of convenient control hereby
Gas WATER-WASHING METHOD purification system, gives full play to the advantage of WATER-WASHING METHOD technique, and improves its short slab, and it is suitable to provide a kind of investment for industry
In, technical maturity, high-purity, high-recovery, can start & shutdown through one key and continuous safe and stable operation methane purification technology.
Claims (4)
1. a kind of biogas WATER-WASHING METHOD purification system of convenient control, it is characterised in that: including passing through pipeline sequentially connected first
Surge tank, biogas compressor, absorption tower, level-one Analytic Tower, second level Analytic Tower, dehydration device, the second surge tank, air blower and work
Skill water pump；It further include having monitoring assembly, action component and PLC, the output end of monitoring assembly is separately connected the input terminal of PLC, PLC
Output end connecting moves component input terminal；The action component include first, second, third, fourth, the five, the 6th,
7th and the 8th regulating valve, the monitoring assembly include the first, second, third tower far transmission level meter, first, second,
Third, the 4th pressure transmitter, PLC and gas composition analysis instrument；Wherein the first regulating valve is arranged in level-one Analytic Tower and first
On surge tank return line, the second regulating valve is arranged on the return line of biogas compressor and the first surge tank, and third is adjusted
Valve is arranged on absorption tower and level-one Analytic Tower waterway tube road, and level-one Analytic Tower and second level Analytic Tower is arranged in the 4th regulating valve
Waterway tube road, the 5th regulating valve are arranged on the waterway tube road of second level Analytic Tower and technique water pump, and the setting of the 6th regulating valve exists
On the return line of second surge tank and the first surge tank, the natural gas outlet pipe of the second surge tank is arranged in the 7th regulating valve
On, the 8th regulating device is arranged on technique water pump and the return line on absorption tower；First, second, third tower remote liquid level
Meter be separately positioned on absorption tower, level-one Analytic Tower, second level Analytic Tower it is upper, first pressure transmitter be arranged at the top of absorption tower gas
In body outlet conduit, second pressure transmitter is arranged on level-one Analytic Tower and the first surge tank return line, and third pressure becomes
Device is sent to be arranged on technique pump outlet to the water route of absorption tower import, the 4th pressure transmitter is arranged in the second surge tank
On, gas analyzer is arranged on the waterway tube road between dehydration device and the second surge tank.
2. the biogas WATER-WASHING METHOD purification system of convenient control according to claim 1, it is characterised in that: the regulating valve
Using pneumatic control valve.
3. the biogas WATER-WASHING METHOD purification system of convenient control according to claim 2, it is characterised in that: the tower is remote
Liquidometer is passed using double flange liquid level meters.
4. the biogas WATER-WASHING METHOD purification system of convenient control according to claim 3, it is characterised in that: the pressure becomes
Send device using teletransmission pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822156475.6U CN209322813U (en) | 2018-12-21 | 2018-12-21 | A kind of biogas WATER-WASHING METHOD purification system of convenient control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822156475.6U CN209322813U (en) | 2018-12-21 | 2018-12-21 | A kind of biogas WATER-WASHING METHOD purification system of convenient control |
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| Publication Number | Publication Date |
|---|---|
| CN209322813U true CN209322813U (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822156475.6U Active CN209322813U (en) | 2018-12-21 | 2018-12-21 | A kind of biogas WATER-WASHING METHOD purification system of convenient control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456809A (en) * | 2018-12-21 | 2019-03-12 | 开封黄河空分集团有限公司 | A kind of the biogas WATER-WASHING METHOD purification system and method for start & shutdown through one key |
| CN112664832A (en) * | 2020-12-15 | 2021-04-16 | 中船重工（邯郸）派瑞特种气体有限公司 | Bulk gas station system based on PLC control |
-
2018
- 2018-12-21 CN CN201822156475.6U patent/CN209322813U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456809A (en) * | 2018-12-21 | 2019-03-12 | 开封黄河空分集团有限公司 | A kind of the biogas WATER-WASHING METHOD purification system and method for start & shutdown through one key |
| CN109456809B (en) * | 2018-12-21 | 2024-07-09 | 开封黄河空分集团有限公司 | Biogas water-washing purification system and method with one-key start and stop |
| CN112664832A (en) * | 2020-12-15 | 2021-04-16 | 中船重工（邯郸）派瑞特种气体有限公司 | Bulk gas station system based on PLC control |
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