CN105838464A - Natural gas dehydration device, dehydration control method, and natural gas dehydration system - Google Patents
Natural gas dehydration device, dehydration control method, and natural gas dehydration system Download PDFInfo
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- CN105838464A CN105838464A CN201610181628.5A CN201610181628A CN105838464A CN 105838464 A CN105838464 A CN 105838464A CN 201610181628 A CN201610181628 A CN 201610181628A CN 105838464 A CN105838464 A CN 105838464A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- B01J20/3408—Regenerating or reactivating of aluminosilicate molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40003—Methods relating to valve switching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/402—Further details for adsorption processes and devices using two beds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/542—Adsorption of impurities during preparation or upgrading of a fuel
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Gases (AREA)
Abstract
The application provides a natural gas dehydration device, a dehydration control method, and a natural gas dehydration system. The dehydration control method includes the steps of: when natural gas coming from a natural gas system is detected, controlling a third valve and a fifth valve, which are matched with a first molecular sieve device, to be opened successively to dry the natural gas, controlling work status of a regeneration device, and controlling an eighth valve and a second valve, which are matched with a second molecular sieve device, to be opened successively to regenerate or cold-blow partially dried natural gas; or controlling a fourth valve and a sixth valve, which are matched with the second molecular sieve device, to be opened successively to dry the natural gas, controlling work status of the regeneration device, and controlling a seventh valve and a first valve, which are matched with a first molecular sieve device, to be opened successively to regenerate or cold-blow partially dried natural gas. The device reduces installation and maintenance cost of valves and molecular sieve devices, achieves control on the valves through simple control logic and is improved in operability and safety.
Description
Technical field
The present invention relates to derived energy chemical technical field, particularly relate to the dehydration device of a kind of natural gas, control
Method and system.
Background technology
The natural gas that long-distance transport pipes conveying comes needs to carry out dehydrate through dewatering system, and dewatering system takes off
After going out moisture, the water dew point in natural gas is made to reach less than-70 DEG C.In prior art, for natural
The dewatering system that gas carries out being dehydrated generally is controlled valve by 3 molecular sieve equipments and up to 13 and forms.
Dewatering system of the prior art is more due to valve, therefore, installs and safeguards cumbersome, work
Journey is relatively costly.Meanwhile, valve more causing controls logic complexity, is likely to if Valve controlling is improper
Cause equipment damage.
Summary of the invention
In view of this, the invention provides dehydration device, control method and the system of a kind of natural gas, use
With solve dewatering system of the prior art arrange valve more, cause install and safeguard cumbersome,
Engineering cost is higher, and system control logic is complicated, if Valve controlling is improper is likely to initiation equipment
The problem of infringement, its technical scheme is as follows:
A kind of dehydration device, described device includes: the first molecular sieve equipment, the second molecular sieve equipment, again
Generating apparatus, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve,
7th valve and the 8th valve；
Described first molecular sieve equipment, for complete under the cooperation of described 3rd valve and described 5th valve
Become the dried of natural gas；
Described generating apparatus again, the portion in the natural gas that described first molecular sieve equipment output is dried
Divide natural gas to be compressed heat treated or compression processes；
Described second Molecular Devices, is additionally operable under the cooperation of described 8th valve and described second valve complete
Regeneration or the cold blowing of paired described regeneration equipment output natural gas process；
Described second molecular sieve equipment, for complete under the cooperation of described 4th valve and described 6th valve
The dried of paired described natural gas；
Described generating apparatus again, is additionally operable in the natural gas being dried described second molecular sieve equipment output
Portion of natural gas is compressed heat treated or compression processes；
Described first molecular sieve equipment, is additionally operable under the cooperation of described 7th valve and described first valve
The regeneration or the cold blowing that complete the natural gas to the output of described regeneration equipment process.
A kind of dehydration controlling method, is applied to described dehydration device, and described method includes:
When the natural gas from natural gas system being detected, control the coordinated with the first molecular sieve equipment
Three valves and the 5th valve are opened to realize the dry run to described natural gas successively；
Control again the duty of generating apparatus and control the 8th valve coordinated with described second molecular sieve equipment
Door and the second valve are opened to realize in the described first dried natural gas of molecular sieve equipment successively
The regeneration of portion of natural gas or cold blowing process；
Or,
Control described 4th valve that coordinates with described second molecular sieve equipment and described 6th valve successively
Open to realize the dry run to described natural gas；
The duty of generating apparatus control the institute that coordinates with described first molecular sieve equipment again described in control
State the 7th valve and described first valve is opened to realize dried to described second molecular sieve equipment successively
Natural gas in the regeneration of portion of natural gas or cold blowing process.
Wherein, described generating apparatus again includes: regeneration gas compressor and heater；
Described in then, the duty of generating apparatus includes again: the regeneration gas compressor in described generating apparatus again and adding
Hot device is starting state, at the regeneration gas compressor in described generating apparatus be again starting state, described in add
Hot device is closed mode.
Wherein, described 3rd valve and the described 5th that described control coordinates with described first molecular sieve equipment
Valve is opened to realize the dry run to described natural gas successively, including:
Control described 3rd valve and open so that described natural gas enters described first molecular sieve and is dried,
When described first molecular sieve equipment exports dried natural gas, control described 5th valve and open, with
The a part of natural gas in the described first dried natural gas of molecular sieve equipment is made to enter described regeneration
Equipment, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
The duty of described control generating apparatus again controlling coordinate with described second molecular sieve equipment the
Eight valves and the second valve are opened to realize the described first dried natural gas of molecular sieve equipment successively
In the regeneration of portion of natural gas or cold blowing process, including:
Described in control, the natural gas of generating apparatus again described in entering is processed by generating apparatus again, and described again
Generating apparatus output process after natural gas time, control described 8th valve and open so that described generating apparatus again is defeated
The natural gas gone out enters described second molecular sieve equipment to carry out regenerating or cold blowing, and at described second molecular sieve
During equipment output natural gas, control described second valve and open, so that described second molecular sieve equipment output
Natural gas via refrigerated separation after return to described natural gas system.
Wherein, described 4th valve and the described 6th that described control coordinates with described second molecular sieve equipment
Valve is opened to realize the dry run to described natural gas successively, including:
Control described 4th valve and open so that described natural gas enters described second molecular sieve and is dried,
When described second molecular sieve equipment output natural gas, control described 6th valve and open, so that through described
A part of natural gas in the second dried natural gas of molecular sieve equipment enter described in generating apparatus again, another
Portion of natural gas enters miscellaneous equipment and carries out subsequent treatment；
Described in described control, duty the control of generating apparatus coordinate with described first molecular sieve equipment again
Described 7th valve and described first valve open successively with realize to described second molecular sieve equipment do
The regeneration of the portion of natural gas in natural gas after dry or cold blowing process, including:
Described in control, the natural gas of generating apparatus again described in entering is processed by generating apparatus again, and described again
Generating apparatus output process after natural gas time, control described 7th valve and open so that described generating apparatus again is defeated
The natural gas gone out enters described first molecular sieve equipment to carry out regenerating or cold blowing, and at described first molecular sieve
During equipment output natural gas, control described first valve and open, so that described first molecular sieve equipment output
Natural gas via refrigerated separation after return to described natural gas system.
Wherein, described in described control, the natural gas of generating apparatus again described in entering is processed by generating apparatus again,
Including:
Control described regeneration gas compressor the natural gas of generating apparatus again described in entering is compressed, and control
Heated by natural gas after compression to preset temperature, the natural gas being heated to preset temperature is by described heater
Enter the natural gas that molecular sieve equipment carries out regenerating；
Or；
Control described regeneration gas compressor the natural gas of generating apparatus again described in entering is compressed, after compression
Natural gas be to enter molecular sieve equipment to carry out the natural gas of cold blowing.
The dewatering system of a kind of natural gas, including described dehydration device and control unit；
Described control unit, for when the natural gas from natural gas system being detected, controlling and institute
State described 3rd valve that the first molecular sieve equipment coordinates and described 5th valve open successively to realize right
The dry run of described natural gas, controls the duty of generating apparatus again and controls and described second molecular sieve
The 8th valve and the second valve that equipment coordinates are opened to realize doing described first molecular sieve equipment successively
The regeneration of the portion of natural gas in natural gas after dry or cold blowing process；
Or,
Control described 4th valve that coordinates with described second molecular sieve equipment and described 5th valve successively
Open to realize the dry run to described natural gas；The duty of generating apparatus controlling again described in control
Described 7th valve and described first valve that coordinate with described first molecular sieve equipment are opened successively with reality
Now regeneration or the cold blowing to the portion of natural gas in the described second dried natural gas of molecular sieve equipment
Journey.
Wherein, described generating apparatus again includes: regeneration gas compressor and heater；
Described in then, the duty of generating apparatus includes again: the regeneration gas compressor in described generating apparatus again and adding
Hot device is starter, at the regeneration gas compressor in described generating apparatus be again starting state, described in add
Hot device is closed mode.
Wherein, described control unit, open so that described natural gas specifically for controlling described 3rd valve
Enter described first molecular sieve to be dried, and when described first molecular sieve equipment output natural gas, control
Make described 5th valve to open, so that in the described first dried natural gas of molecular sieve equipment
Point natural gas enter described in generating apparatus again, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
Also particularly useful for described in controlling again generating apparatus the natural gas of generating apparatus again described in entering is processed,
And during natural gas after described regenerating unit output processes, control described 8th valve and open so that described
The natural gas of regeneration equipment output enters described second molecular sieve equipment to carry out regenerating or cold blowing, and in detection
During to the natural gas of described second molecular sieve equipment output, control described second valve and open, so that described
Described natural gas system is returned to after the natural gas via refrigerated separation of the second molecular sieve equipment output.
Wherein, described control unit, open so that described natural gas specifically for controlling described 4th valve
Enter described second molecular sieve to be dried, and when described second molecular sieve equipment output natural gas, control
Make described 6th valve to open, so that in the described second dried natural gas of molecular sieve equipment
Point natural gas enter described in generating apparatus again, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
Also particularly useful for described in controlling again generating apparatus the natural gas of generating apparatus again described in entering is processed,
And during natural gas after described regenerating unit output processes, control described 7th valve and open so that described
The natural gas of regeneration equipment output enters described first molecular sieve equipment to carry out regenerating or cold blowing, and described
During the first molecular sieve equipment output natural gas, control described first valve and open, so that described first molecule
Described natural gas system is returned to after the natural gas via refrigerated separation of sieve apparatus output.
Technique scheme has the advantages that
In dehydration device, control method and the system of the natural gas that the present invention provides, dehydration device only utilizes
Two molecular sieve equipments and eight valves achieve natural gas be dried, regenerate, cold blowing, with existing skill
Dewatering system in art is compared, and the quantity of molecular sieve equipment and valve greatly reduces, molecular sieve equipment and valve
The cost of installation and maintenance of door is substantially reduced, and control method based on dehydration device is controlled by simple
The logic realization control to each valve, the control of valve is simple, safety, i.e. improves dewatering system
Operability and safety.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structural representation of the dehydration device of the natural gas that Fig. 1 provides for the embodiment of the present invention；
One schematic flow sheet of the dehydration controlling method that Fig. 2 provides for the embodiment of the present invention；
Another schematic flow sheet of the dehydration controlling method that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Embodiments provide the dehydration device of a kind of natural gas, refer to Fig. 1, it is shown that this dress
The structural representation put, this device may include that the first molecular sieve equipment C101, the second molecular sieve equipment
C102, regeneration equipment R100, the first valve K101, the second valve K102, the 3rd valve K103, the
Four valve K104, the 5th valve K105, the 6th valve K106, the 7th valve K107 and the 8th valve
K108.Wherein:
First molecular sieve equipment C101, in the 3rd valve K103 and the cooperation of the 5th valve K105
Under complete the dried of natural gas.
Regeneration equipment R100, in the natural gas being dried the first molecular sieve equipment C101 output
Portion of natural gas is compressed heat treated or compression processes.
Second molecular sieve equipment C102, in the 8th valve K108 and the cooperation of the second valve K102
Under complete the regeneration equipment R100 output regeneration of natural gas or cold blowing are processed.
Second molecular sieve equipment C102, is additionally operable to joining at the 4th valve K104 and the 6th valve K106
The dried to natural gas is completed under conjunction.
Regeneration equipment R100, is additionally operable in the natural gas being dried the second molecular sieve equipment C102 output
Portion of natural gas be compressed heat treated or compression and process.
First molecular sieve equipment C101, is additionally operable to joining at the 7th valve K107 and the first valve K101
Complete the regeneration to regeneration equipment R100 output natural gas under conjunction or cold blowing processes.
The dehydration device of natural gas that the embodiment of the present invention provides only utilizes two molecular sieve equipments and eight
Valve achieve natural gas be dried, regenerate, cold blowing.Compared with dehydration device of the prior art system,
In the dehydration device of the natural gas that the embodiment of the present invention provides, the quantity of molecular sieve equipment and valve subtracts significantly
Few, the minimizing of molecular sieve equipment and valve quantity makes the cost of installation and maintenance of molecular sieve equipment and valve
It is substantially reduced.
The embodiment of the present invention additionally provides a kind of dehydration controlling method, and the method is applied to above-described embodiment and carries
The dehydration device of confession, refers to Fig. 2, it is shown that a schematic flow sheet of this dehydration controlling method, the party
Method may include that
Step S201: when the natural gas from natural gas system being detected, controls and the first molecular sieve
The 3rd valve and the 5th valve that equipment coordinates are opened to realize the dry run to natural gas successively.
Concrete, control the 3rd valve that coordinates with the first molecular sieve equipment and the 5th valve open successively with
Realize dry run to described natural gas, including: control the 3rd valve and open so that natural gas enters the
A part sieve is dried process, when the natural gas that the first molecular sieve equipment output is dried, controls the 5th
Valve is opened, so that the regeneration that is partly in the first dried natural gas of molecular sieve equipment sets
Standby, another part enters miscellaneous equipment and carries out subsequent treatment.Such as, 15% entrance of dry natural gas is again
Generating apparatus.
It should be noted that when the 3rd valve and the 5th valve are opened, if the 4th valve and the 6th valve
Door is open mode, then by the 4th valve and the 6th valve closing.
Step S202: control again the duty of generating apparatus and control to coordinate with the second molecular sieve equipment
8th valve and the second valve are opened to realize in the first dried natural gas of molecular sieve equipment successively
The regeneration of portion of natural gas or cold blowing process.
Concrete, control again the duty of generating apparatus and control the 8th coordinated with the second molecular sieve equipment
Valve and the second valve are opened to realize the natural regeneration inputting again in generating apparatus or cold blowing successively
Journey, including: control again generating apparatus and the natural gas entering again generating apparatus is processed, and at generating apparatus again
Output process after natural gas time, control the 8th valve open so that regeneration equipment output natural gas enter
Second molecular sieve equipment carries out regenerating or cold blowing, and when the second molecular sieve equipment exports natural gas, controls
Second valve is opened, so that returning to natural gas after the natural gas via refrigerated separation of the second molecular sieve equipment output
System recycles.
Wherein, then the duty of generating apparatus includes: the regeneration gas compressor in generating apparatus and heater again
It is starting state, and, then be that starting state, heater are at the regeneration gas compressor in generating apparatus
Closed mode.
Further, control again generating apparatus and the natural gas entering again generating apparatus is processed, particularly as follows:
Control regeneration gas compressor the natural gas entering again generating apparatus is compressed, and control heater by compression
After heated by natural gas to preset temperature, or, control the regeneration gas compressor sky to entering again generating apparatus
So gas is compressed, and controls heater and closes.Further, it is heated to preset temperature when the output of regeneration equipment
During the natural gas spent, control the 8th valve and open so that the natural gas of regeneration equipment output enters the second molecule
Sieve apparatus regenerates, when regenerating the natural gas after equipment output squeezing, control the 8th valve open with
The natural gas making regeneration equipment export enters the second molecular sieve equipment and carries out cold blowing.
It should be noted that when the 8th valve and the second valve are opened, if the 7th valve and the first valve
Door is open mode, then by the 7th valve and the first valve closing.
The dehydration controlling method that the embodiment of the present invention provides, by the simple logic realization that controls to dehydration
The control of each valve in device, the control of valve is simple, safety, i.e. improves grasping of dewatering system
The property made and safety.
Refer to Fig. 3, it is shown that another schematic flow sheet of this dehydration controlling method, the method is applied to
The dehydration device that above-described embodiment provides, the method may include that
Step S301: when the natural gas from natural gas system being detected, controls and the second molecular sieve
The 4th valve and the 6th valve that equipment coordinates are opened to realize the dry run to natural gas successively.
Concrete, control the 4th valve that coordinates with the second molecular sieve equipment and the 6th valve open successively with
Realize the dry run to natural gas, including: control the 4th valve and open so that natural gas enters second point
Son sieve is dried, and when the second molecular sieve equipment exports dried natural gas, controls the 6th valve and beats
Open, so that being partly into generating apparatus again in the second dried natural gas of molecular sieve equipment, another
It is partially into miscellaneous equipment and carries out subsequent treatment.
It should be noted that when the 4th valve and the 6th valve are opened, if the 3rd valve and the 5th valve
Door is open mode, then by the 3rd valve and the 5th valve closing.
Step S302: control again the duty of generating apparatus and control to coordinate with the first molecular sieve equipment
7th valve and the first valve are opened to realize in the second dried natural gas of molecular sieve equipment successively
The regeneration of portion of natural gas or cold blowing process.
Concrete, control again the duty of generating apparatus and control the 7th coordinated with the first molecular sieve equipment
Valve and the first valve are opened to realize the regeneration to partially dried natural gas or cold blowing process successively, bag
Include: control again generating apparatus and the natural gas entering again generating apparatus is processed, and at regenerating unit output
During natural gas after reason, control the 7th valve and open so that the natural gas of regeneration equipment output enters first point
Sub-sieve apparatus carries out regenerating or cold blowing, and when the first molecular sieve equipment exports natural gas, controls the first valve
Door is opened, and follows so that returning to natural gas system after the natural gas via refrigerated separation of the first molecular sieve equipment output
Ring utilizes.
Wherein, then the duty of generating apparatus includes: the regeneration gas compressor in generating apparatus and heater again
It is starting state, and, then be that starting state, heater are at the regeneration gas compressor in generating apparatus
Closed mode.
Further, control again generating apparatus to process the natural gas entering again generating apparatus particularly as follows: control
The natural gas entering again generating apparatus is compressed by preparation, regeneration air compressor, and controls heater by after compression
Heated by natural gas to preset temperature (such as 270 degree), or, control regeneration gas compressor to enter again
The natural gas of generating apparatus is compressed, and controls heater and closes.When the output of regeneration equipment is heated to preset temperature
During the natural gas spent, control the 7th valve and open so that the natural gas of regeneration equipment output enters the first molecule
Sieve apparatus regenerates, when regenerating the natural gas after equipment output squeezing, control the 7th valve open with
The natural gas making regeneration equipment export enters the first molecular sieve equipment and carries out cold blowing.
It should be noted that when the 7th valve and the first valve are opened, if the 8th valve and the second valve
Door is open mode, then by the 8th valve and the second valve closing.
The dehydration controlling method that the embodiment of the present invention provides, by the simple logic realization that controls to dehydration
The control of each valve in device, the control of valve is simple, safety, i.e. improves grasping of dewatering system
The property made and safety.
The embodiment of the present invention additionally provides the dewatering system of a kind of natural gas, and this system can include dehydration dress
Put and control unit.Wherein, dehydration device can be the dehydration device of the natural gas that above-described embodiment provides,
Its concrete structure can be found in above-described embodiment, and therefore not to repeat here.Wherein:
Control unit, for when the natural gas from natural gas system being detected, controlling and first point
The 3rd valve and the 5th valve that sub-sieve apparatus coordinates are opened to realize the dry run to natural gas successively,
Control again the duty of generating apparatus and control the 8th valve and second coordinated with the second molecular sieve equipment
Valve is opened to realize partially dried natural regeneration or cold blowing process successively.
Control unit, the 4th valve and the 6th valve that are additionally operable to control to coordinate with the second molecular sieve equipment depend on
Secondary open to realize dry run to natural gas；Control again the duty of generating apparatus and control and first
The 7th valve and the first valve that molecular sieve equipment coordinates are opened to realize partially dried natural gas
Regeneration or cold blowing process.
In the dewatering system of the natural gas that the present invention provides, control unit is by simply controlling logic realization
To the control of each valve in dehydration device, the control of valve is simple, safety, i.e. improves dehydration system
The operability of system and safety.
In the above-described embodiments, the generating apparatus again in dehydration device includes: regeneration gas compressor and heater.
The duty of generating apparatus includes the most again: the regeneration gas compressor in generating apparatus and heater are startup again
At regeneration gas compressor in device, then generating apparatus be starting state, heater be closed mode.
In the above-described embodiments, control unit, open so that natural gas enters specifically for controlling the 3rd valve
Enter the first molecular sieve to be dried, and when the first molecular sieve equipment exports natural gas, control the 5th valve
Open, so that being partly into generating apparatus again, separately in the first dried natural gas of molecular sieve equipment
It is partly into miscellaneous equipment and carries out subsequent treatment.
In the above-described embodiments, control unit, also particularly useful for controlling generating apparatus to entering generating apparatus more again
Natural gas process, and regenerate equipment output process after natural gas time, control the 8th valve beat
Open so that the natural gas of regeneration equipment output enters the second molecular sieve equipment and carries out regenerating or cold blowing, and the
During two molecular sieve equipment output natural gass, control the second valve and open, so that the second molecular sieve equipment output
Natural gas via refrigerated separation after return to natural gas system and recycle.
In the above-described embodiments, control unit, open so that natural gas enters specifically for controlling the 4th valve
Enter the second molecular sieve to be dried, and when the second molecular sieve equipment exports natural gas, control the 6th valve
Open, so that being partly into generating apparatus again, separately in the second dried natural gas of molecular sieve equipment
It is partly into miscellaneous equipment and carries out subsequent treatment.
In the above-described embodiments, control unit, also particularly useful for controlling generating apparatus to entering generating apparatus more again
Natural gas process, and regenerating unit output process after natural gas time, control the 7th valve beat
Open so that the natural gas of regeneration equipment output enters the first molecular sieve equipment and carries out regenerating or cold blowing, and the
During a part sieve apparatus output natural gas, control the first valve and open, so that the first molecular sieve equipment output
Natural gas via refrigerated separation after return to natural gas and recycle.
In the above-described embodiments, then the duty of generating apparatus includes: the compression of the regeneration gas in generating apparatus again
Machine and heater are starting state, and, then at the regeneration gas compressor in generating apparatus be starting state,
Heater is closed mode.
Then control unit, is carried out the natural gas entering again generating apparatus specifically for controlling regeneration gas compressor
Compression, and control heater by the heated by natural gas after compression to preset temperature, it is heated to preset temperature
Natural gas is to enter the natural gas that molecular sieve equipment carries out regenerating；Or, control regeneration gas compressor to entering
Described in entering, the natural gas of generating apparatus is compressed again, and the natural gas after compression is carried out for entering molecular sieve equipment
The natural gas of cold blowing.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
In several embodiments provided herein, it should be understood that disclosed method, device and
Equipment, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.It addition, each in each embodiment of the present invention
Functional unit can be integrated in a processing unit, it is also possible to is that unit is individually physically present, also
Can be integrated in a unit with two or more unit.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
Seeing, generic principles defined herein can be in the situation without departing from the spirit or scope of the present invention
Under, realize in other embodiments.Therefore, the present invention is not intended to be limited to these realities shown in this article
Execute example, and be to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a dehydration device, it is characterised in that described device includes: the first molecular sieve equipment, the
Two molecular sieve equipments, again generating apparatus, the first valve, the second valve, the 3rd valve, the 4th valve,
5th valve, the 6th valve, the 7th valve and the 8th valve；
Described first molecular sieve equipment, under the cooperation of described 3rd valve and described 5th valve
Complete the dried of natural gas；
Described generating apparatus again, in the natural gas being dried described first molecular sieve equipment output
Portion of natural gas is compressed heat treated or compression processes；
Described second Molecular Devices, is additionally operable under the cooperation of described 8th valve and described second valve
Complete the regeneration to described regeneration equipment output natural gas or cold blowing processes；
Described second molecular sieve equipment, under the cooperation of described 4th valve and described 6th valve
Complete the dried to described natural gas；
Described generating apparatus again, is additionally operable in the natural gas being dried described second molecular sieve equipment output
Portion of natural gas be compressed heat treated or compression and process；
Described first molecular sieve equipment, is additionally operable in described 7th valve and the cooperation of described first valve
Under complete the regeneration of natural gas to the output of described regeneration equipment or cold blowing processes.
2. a dehydration controlling method, it is characterised in that be applied to be dehydrated as claimed in claim 1
Device, described method includes:
When the natural gas from natural gas system being detected, control coordinates with the first molecular sieve equipment
3rd valve and the 5th valve are opened to realize the dry run to described natural gas successively；
Control again the duty of generating apparatus and control the 8th valve coordinated with described second molecular sieve equipment
Door and the second valve are opened to realize in the described first dried natural gas of molecular sieve equipment successively
The regeneration of portion of natural gas or cold blowing process；
Or,
Control described 4th valve that coordinates with described second molecular sieve equipment and described 6th valve successively
Open to realize the dry run to described natural gas；
The duty of generating apparatus control the institute that coordinates with described first molecular sieve equipment again described in control
State the 7th valve and described first valve is opened to realize dried to described second molecular sieve equipment successively
Natural gas in the regeneration of portion of natural gas or cold blowing process.
Method the most according to claim 2, it is characterised in that described generating apparatus again includes: again
Angry compressor and heater；
Described in then, the duty of generating apparatus includes again: the regeneration gas compressor in described generating apparatus again and
Heater is starting state, is starting state, institute at the regeneration gas compressor in described generating apparatus again
Stating heater is closed mode.
Method the most according to claim 3, it is characterised in that described control and described first point
Described 3rd valve and described 5th valve that sub-sieve apparatus coordinates are opened to realize described natural successively
The dry run of gas, including:
Control described 3rd valve to open so that described natural gas enters described first molecular sieve and does
Dry, when described first molecular sieve equipment exports dried natural gas, control described 5th valve and beat
Open, so that a part of natural gas in the described first dried natural gas of molecular sieve equipment enters institute
Stating generating apparatus again, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
The duty of described control generating apparatus again controlling coordinate with described second molecular sieve equipment the
Eight valves and the second valve are opened to realize the described first dried natural gas of molecular sieve equipment successively
In the regeneration of portion of natural gas or cold blowing process, including:
Described in control, the natural gas of generating apparatus again described in entering is processed by generating apparatus again, and described
Regenerating unit output process after natural gas time, control described 8th valve and open so that described regeneration sets
The natural gas of standby output enters described second molecular sieve equipment to carry out regenerating or cold blowing, and described second
During molecular sieve equipment output natural gas, control described second valve and open, so that described second molecular sieve
Described natural gas system is returned to after the natural gas via refrigerated separation of equipment output.
Method the most according to claim 3, it is characterised in that described control and described second point
Described 4th valve and described 6th valve that sub-sieve apparatus coordinates are opened to realize described natural successively
The dry run of gas, including:
Control described 4th valve to open so that described natural gas enters described second molecular sieve and does
Dry, when described second molecular sieve equipment output natural gas, control described 6th valve and open, so that
A part of natural gas in the described second dried natural gas of molecular sieve equipment enters described regeneration and sets
Standby, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
Described in described control, duty the control of generating apparatus coordinate with described first molecular sieve equipment again
Described 7th valve and described first valve open successively with realize to described second molecular sieve equipment do
The regeneration of the portion of natural gas in natural gas after dry or cold blowing process, including:
Described in control, the natural gas of generating apparatus again described in entering is processed by generating apparatus again, and described
Regenerating unit output process after natural gas time, control described 7th valve and open so that described regeneration sets
The natural gas of standby output enters described first molecular sieve equipment to carry out regenerating or cold blowing, and described first
During molecular sieve equipment output natural gas, control described first valve and open, so that described first molecular sieve
Described natural gas system is returned to after the natural gas via refrigerated separation of equipment output.
6. according to the method described in claim 4 or 5, it is characterised in that the described regeneration of described control
The natural gas of generating apparatus again described in entering is processed by equipment, including:
Control described regeneration gas compressor the natural gas of generating apparatus again described in entering is compressed, and control
Make described heater by the heated by natural gas after compression to preset temperature, be heated to the natural of preset temperature
Gas is to enter the natural gas that molecular sieve equipment carries out regenerating；
Or；
Control described regeneration gas compressor the natural gas of generating apparatus again described in entering is compressed, compression
After natural gas be to enter molecular sieve equipment to carry out the natural gas of cold blowing.
7. the dewatering system of a natural gas, it is characterised in that include control unit and such as claim
Dehydration device described in 1；
Described control unit, for when the natural gas from natural gas system being detected, control with
Described 3rd valve and described 5th valve that described first molecular sieve equipment coordinates are opened to realize successively
Dry run to described natural gas, controls the duty of generating apparatus again and controls and described second point
The 8th valve and the second valve that sub-sieve apparatus coordinates are opened to realize setting described first molecular sieve successively
The regeneration of the portion of natural gas in standby dried natural gas or cold blowing process；
Or,
Control described 4th valve that coordinates with described second molecular sieve equipment and described 5th valve successively
Open to realize the dry run to described natural gas；The duty of generating apparatus controlling again described in control
Described 7th valve that coordinates with described first molecular sieve equipment of system and described first valve open successively with
Realize the regeneration to the portion of natural gas in the described second dried natural gas of molecular sieve equipment or cold blowing
Process.
System the most according to claim 7, it is characterised in that described generating apparatus again includes: again
Angry compressor and heater；
Described in then, the duty of generating apparatus includes again: the regeneration gas compressor in described generating apparatus again and
Heater is starter, is starting state, institute at the regeneration gas compressor in described generating apparatus again
Stating heater is closed mode.
System the most according to claim 8, it is characterised in that described control unit, specifically uses
Open so that described natural gas enters described first molecular sieve and is dried in controlling described 3rd valve,
And when described first molecular sieve equipment output natural gas, control described 5th valve and open, so that warp
A part of natural gas in the described first dried natural gas of molecular sieve equipment enters described regeneration and sets
Standby, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
Also particularly useful for described in controlling again at the generating apparatus natural gas to generating apparatus again described in entering
Reason, and described regenerating unit output process after natural gas time, control described 8th valve open with
The natural gas making described regeneration equipment export enters described second molecular sieve equipment to carry out regenerating or cold blowing,
And when the natural gas of described second molecular sieve equipment output being detected, control described second valve and open,
So that returning to described natural gas system after the natural gas via refrigerated separation of described second molecular sieve equipment output
System.
System the most according to claim 8, it is characterised in that described control unit, specifically
Open so that described natural gas enters described second molecular sieve and does for controlling described 4th valve
Dry, and when described second molecular sieve equipment output natural gas, control described 6th valve and open, with
The a part of natural gas in the described second dried natural gas of molecular sieve equipment is made to enter described regeneration
Equipment, another part natural gas enters miscellaneous equipment and carries out subsequent treatment；
Also particularly useful for described in controlling again at the generating apparatus natural gas to generating apparatus again described in entering
Reason, and described regenerating unit output process after natural gas time, control described 7th valve open with
The natural gas making described regeneration equipment export enters described first molecular sieve equipment to carry out regenerating or cold blowing,
And when described first molecular sieve equipment output natural gas, control described first valve and open, so that institute
Described natural gas system is returned to after stating the natural gas via refrigerated separation of the first molecular sieve equipment output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181628.5A CN105838464A (en) | 2016-03-28 | 2016-03-28 | Natural gas dehydration device, dehydration control method, and natural gas dehydration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181628.5A CN105838464A (en) | 2016-03-28 | 2016-03-28 | Natural gas dehydration device, dehydration control method, and natural gas dehydration system |
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| CN105969437A (en) * | 2016-03-28 | 2016-09-28 | 重庆耐德能源装备集成有限公司 | Dehydration device of natural gas, switching control method and system |
| CN106118779A (en) * | 2016-08-29 | 2016-11-16 | 北京迪威尔石油天然气技术开发有限公司 | A kind of natual gas dehydrate unit |
| CN106367147A (en) * | 2016-09-27 | 2017-02-01 | 陈朝晖 | Natural gas dehydration system and dehydration method thereof |
| CN106753634A (en) * | 2016-12-05 | 2017-05-31 | 重庆耐德工业股份有限公司 | LNG unstripped gas dehydration devices |
| CN112922580A (en) * | 2019-12-06 | 2021-06-08 | 中国石油天然气股份有限公司 | Natural gas processing system, control method thereof and natural gas transmission system |
| CN113145089A (en) * | 2020-01-22 | 2021-07-23 | 苏州微木智能系统有限公司 | Molecular sieve off-line reactivator |
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Application publication date: 20160810 |