CN109296534A - A kind of device in Gas pretreatment supercharging device and its control method - Google Patents
A kind of device in Gas pretreatment supercharging device and its control method Download PDFInfo
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- CN109296534A CN109296534A CN201811148299.XA CN201811148299A CN109296534A CN 109296534 A CN109296534 A CN 109296534A CN 201811148299 A CN201811148299 A CN 201811148299A CN 109296534 A CN109296534 A CN 109296534A
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- Prior art keywords
- roots blower
- gas
- fixedly connected
- variable
- main body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/02—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of device in Gas to pre-process supercharging device, it is related to device in Gas pretreatment correlative technology field, including apparatus main body, the inner cavity two sides of described device main body offer inlet chamber and outlet chamber respectively, the middle part lower end of described device main body offers the first mounting groove, and the middle part upper end of apparatus main body offers the second mounting groove.The invention also discloses a kind of control methods of device in Gas pretreatment supercharging device, including eight steps；The stable operation that can effectively ensure that more roots blowers in parallel, reaches the result of economical operation, stable operation.The present invention is by offering the first mounting groove and the second mounting groove in apparatus main body, variable-frequency motor is fixedly installed in first mounting groove, it is fixedly installed with roots blower in second mounting groove, so that variable-frequency motor and roots blower are easily installed and replace, improves the working efficiency of supercharging device.
Description
Technical field
Pre-process correlative technology field the present invention relates to device in Gas, in particular to a kind of device in Gas pretreatment supercharging device and
Its control method.
Background technique
Device in Gas is to be stored at one of coal seam Unconventional gas, is come out automatically in process of coal mining
A kind of pernicious gas, main ingredient is methane, colourless, tasteless, inflammable, explosive.When concentration in air reaches 5%~
When 16%, it is coal mine " safe killer " that meeting open fire, which can explode,.But device in Gas is also a kind of clean energy resource simultaneously, have compared with
High utility value is exactly an economy, beneficial approach using device in Gas power generation.
It is limited by domestic coal mine mash gas extraction condition, coal extraction gas density is generally lower, device in Gas comprehensive utilization
In, methane concentration is regarded as high concentration gas gas 25% or more.China has about 40% device in Gas to contain for methane at present
Measure 25% or more high concentration gas, conveying and use in it is relatively safe, be commonly used to industry/domestic fuel, purification liquid
Change and gas electricity.The quality of device in Gas preconditioning technique, seriously affect gas electricity unit operation stability, reliability,
It is economical.In gas gas pretreating system, generally using roots blower as supercharging device, roots blower machine set outlet pressure
Stability will directly affect the normal operation of generating set.It is therefore proposed that a kind of device in Gas pretreatment supercharging device and its control
Method is necessary to solve the above problems.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of device in Gas to pre-process supercharging device and its control method,
It is unstable to solve the problems, such as that existing device in Gas pretreatment supercharging device is pressurized.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of device in Gas pretreatment pressurization dress
It sets, including apparatus main body, the inner cavity two sides of described device main body offer inlet chamber and outlet chamber respectively, described device main body
Middle part lower end offers the first mounting groove, and the middle part upper end of apparatus main body offers the second mounting groove；
One middle side part of described device main body is fixedly connected with admission line, and one end of admission line is connected with inlet chamber
It is logical, it is fixedly connected with outlet pipe in the middle part of the other side of described device main body, one end of outlet pipe is connected with outlet chamber；
Variable-frequency motor is provided in first mounting groove, the bottom of the variable-frequency motor is fixedly connected with the first installation
Plate, first mounting plate are fixedly connected by clamping screw with the center bottom of apparatus main body；
It is fixedly connected with bottom connecting plate in the bottom sidewall of second mounting groove, is provided in second mounting groove
Roots blower, bottom end and the bottom connecting plate of roots blower are fitted and connected, and the second installation is provided with above the roots blower
Plate, second mounting plate are fixedly connected by fastening bolt with the top middle portion of apparatus main body, the bottom of second mounting plate
Face is fitted and connected by the top of buffering connector and roots blower；
The on both sides of the middle of second mounting groove is provided with gas passage, and the gas passage is opened in apparatus main body
It is interior；
It is fixedly connected with pressure sensor in the middle part of the inner wall bottom surface of the outlet chamber, control is provided with below the outlet chamber
Device processed, the controller are fixedly mounted on the inside of apparatus main body；
A/D conversion module, data reception module, central processing unit, data processing module, are provided in the controller
One motor control module, the second motor control module and N motor control module.
Optionally, intake valve is fixedly connected on the admission line；
Air outlet valve is fixedly connected on the outlet pipe.
Optionally, the variable-frequency motor includes the first variable-frequency motor, the second variable-frequency motor and N variable-frequency motor；
The top middle portion of the variable-frequency motor is provided with machine shaft, and the bottom end of the machine shaft is fixedly connected with limit
Inserted block；
The center bottom of the roots blower is provided with blower connecting shaft, and the top of the blower connecting shaft is fixedly connected with
Convex block；
The center bottom of the convex block offers limit slot, and the limit slot is adapted with limit inserted block.
Optionally, the quantity of the roots blower and the quantity of variable-frequency motor are equal；
Two middle side parts of the roots blower are fixedly connected to connecting pipe, and the connecting pipe is far from roots blower
One end is adapted with gas passage；
The connecting pipe is fixedly connected with sealing ring far from one end of roots blower, and connecting pipe is far from roots blower
One end be set as inclined surface.
Optionally, the bottom connecting plate is made of jointing plate and multiple buffer springs, and multiple buffer springs are in rectangle battle array
Column distribution；
One end of the buffer spring is fixedly connected with the bottom end side wall of the second mounting groove, the other end of the buffer spring
It is fixedly connected with the side of jointing plate, the other side of the jointing plate is bonded company with the bottom surface of roots blower by cushion
It connects.
Optionally, the buffering connector is provided with multiple, and multiple buffering connectors are equally distributed horizontally to second
In the middle part of the bottom surface of mounting plate；
The buffering connector is made of telescopic rod, compressed spring and pressing plate, one end of the telescopic rod and the second installation
The bottom surface of plate is fixedly connected, and the other end of the telescopic rod is fixedly connected with the side of pressing plate, and the compressed spring, which is socketed in, stretches
The outside of contracting bar, and the both ends of compressed spring are fitted and connected the second mounting plate and pressing plate respectively, the other side of the pressing plate passes through
The top of sponge bed course and roots blower is fitted and connected.
The input terminal of the output end electrical connection A/D conversion module of the pressure sensor, the output of the A/D conversion module
The input terminal of end electrical connection data reception module, the input of the output end electrical connection central processing unit of the data reception module
End, the output end of the central processing unit are electrically connected first motor control module, the second motor control module and N motor
The input terminal of control module；
Optionally, the first motor control module, the second motor control module and N motor control module output end
It is electrically connected the input terminal of the first variable-frequency motor, the second variable-frequency motor and N variable-frequency motor.
A kind of control method of device in Gas pretreatment supercharging device, comprising the following steps:
Step 1: first by device in Gas by supply main pipe enter pretreatment system inlet valve, through entrance fire arrester into
Enter primary filter, then flows through condenser-steam-water separator and carry out cooling de-watering；
Step 2: again will treated that device in Gas is passed through supercharging device by filtering, separation etc.；
Step 3: and then starting controller and roots blower, setup pressure value, controller control Roots by variable-frequency motor
Blower rotation, is pressurized device in Gas；
Step 4: when pressure sensor detects that the pressure of outlet chamber is unable to satisfy demand, first roots blower
Pid control circuit puts into automatic running pattern, adjusts outlet pressure；
Step 5: if first roots blower frequency reaches peak value, when device in Gas is still unable to reach preset pressure value,
First roots blower operating mode is switched to be run with the fixed frequency of peak value；
Step 6: and then controller controls the starting of second roots blower, and second roots blower is given in a manner of frequency by determining
Revolving speed puts into operation；
Step 7: when pressure sensor detects that the pressure of outlet chamber is unable to satisfy demand, second roots blower
Pid control circuit puts into automatic running pattern, adjusts outlet pressure；
Step 8: and so on, controller opens more roots blowers, until device in Gas reaches stabilization of export pressure
Purpose.
Optionally, the roots blower in the step 3 is made of N platform, and working method is parallel running.
Optionally, the output frequency of roots blower is 20Hz-45Hz, the wherein operation of roots blower in the above-mentioned steps
Peak value is 45Hz.
(3) beneficial effect
The present invention provides a kind of device in Gas pretreatment supercharging device and its control method, have it is following the utility model has the advantages that
(1), the present invention is fixed in the first mounting groove by offering the first mounting groove and the second mounting groove in apparatus main body
Variable-frequency motor is installed, is fixedly installed with roots blower in the second mounting groove, so that variable-frequency motor and roots blower are convenient for pacifying
Dress and replacement, improve the working efficiency of supercharging device.
(2), by being provided with more variable-frequency motors and roots blower, more variable-frequency motors and roots blower are the present invention
It is arranged in parallel, is additionally provided with setting PLC control system and pressure sensor, turning for variable-frequency motor is controlled using PLC system
Speed, the pressure exported by pressure sensor detecting device, utilizes the closed loop PID control in PLC control system, real-time control sieve
The revolving speed of thatch blower, achievees the purpose that continuous voltage regulating.
(3), the present apparatus takes full advantage of control system resource, realizes the automatic running of pretreatment system, is especially pressurized
The stable operation of device while ensure that unit safety, stable operation, has achieved the purpose that economical operation
Detailed description of the invention
Fig. 1 is structure of the invention connection schematic diagram.
Fig. 2 is apparatus of the present invention main structure diagrammatic cross-section.
Fig. 3 is projection cube structure diagrammatic cross-section of the present invention.
Fig. 4 is present invention limit inserted block and limit inserting slot construction schematic top plan view.
Fig. 5 is structure enlargement diagram at A in Fig. 1 of the present invention.
Fig. 6 is bottom connecting plate structural profile illustration of the present invention.
Fig. 7 is present invention buffering connecting-piece structure diagrammatic cross-section.
Fig. 8 is structure of the invention module connection diagram.
Fig. 9 is air inlet mouth of pipe structural profile illustration of the present invention.
In figure: apparatus main body 1, outlet chamber 102, admission line 2, outlet pipe 3, the first mounting groove 4, becomes inlet chamber 101
Frequency motor 5, limit inserted block 52, the first mounting plate 6, the second mounting groove 7, bottom connecting plate 8, jointing plate 81, delays machine shaft 51
Rush spring 82, roots blower 9, blower connecting shaft 91, convex block 911, limit slot 912, connecting pipe 92, sealing ring 921, second
Mounting plate 10, buffering connector 11, telescopic rod 111, compressed spring 112, pressing plate 113, gas passage 12, air inlet mouth of pipe 13, film
Valve 131, movable sealing plate 132, movable connecting rod 133, sliding slot 134, sliding block 135, reset spring 136, pressure sensor 14, control
Device 15 processed, A/D conversion module 16, data reception module 17, central processing unit 18, data processing module 19, first motor control
Module 20, the second motor control module 21, N motor control module 22.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection ",
Terms such as " fixations " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be mechanical connect
It connects；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Person implicitly includes one or more of the features.
The present invention provides a kind of device in Gas as shown in figs 1-9 to pre-process supercharging device, including apparatus main body 1, device
The inner cavity two sides of main body 1 offer inlet chamber 101 and outlet chamber 102 respectively, and the middle part lower end of apparatus main body 1 offers the first peace
Tankage 4, and the middle part upper end of apparatus main body 1 offers the second mounting groove 7；
One middle side part of apparatus main body 1 is fixedly connected with admission line 2, and one end of admission line 2 is connected with inlet chamber 101
It is logical, it is fixedly connected with outlet pipe 3 in the middle part of the other side of apparatus main body 1, one end of outlet pipe 3 is connected with outlet chamber 102；
Variable-frequency motor 5 is provided in first mounting groove 4, the bottom of variable-frequency motor 5 is fixedly connected with the first mounting plate 6, the
One mounting plate 6 is fixedly connected by clamping screw with the center bottom of apparatus main body 1；So that the replacement easy to disassemble of variable-frequency motor 5
Installation, improves the working efficiency of supercharging device；
It is fixedly connected with bottom connecting plate 8 in the bottom sidewall of second mounting groove 7, is provided with Roots in the second mounting groove 7
Blower 9, bottom end and the bottom connecting plate 8 of roots blower 9 are fitted and connected, and the top of roots blower 9 is provided with the second mounting plate 10,
Second mounting plate 10 is fixedly connected by fastening bolt with the top middle portion of apparatus main body 1, the underrun of the second mounting plate 10
Buffering connector 11 and the top of roots blower 9 are fitted and connected；So that the replacement easy to disassemble of roots blower 9 is installed, increasing is improved
The working efficiency of pressure device；
The on both sides of the middle of second mounting groove 7 is provided with gas passage 12, and gas passage 12 is opened in apparatus main body 1；
The inner wall side of inlet chamber 101 is fixedly connected with air inlet mouth of pipe 13, the air inlet mouth of pipe 13 and 12 phase of gas passage
Connection；
Inner cavity one end of air inlet mouth of pipe 13 is provided with film valve 131, and film valve 131 is fixedly mounted on the inner sidewall of air inlet mouth of pipe 13
On, movable sealing plate 132 is provided in the middle part of the inner cavity of air inlet mouth of pipe 13, there are two the side of movable sealing plate 132 is symmetrical arranged
One end of movable connecting rod 133, movable connecting rod 133 is flexibly connected by pin shaft with movable sealing plate 132, air inlet mouth of pipe 13
The inner cavity other end offers sliding slot 134 in two sides up and down, and sliding block 135 is connected in sliding slot 134, movable connecting rod 133
The other end is flexibly connected by articulated shaft with sliding block 135, is provided with reset spring 136 in sliding slot 134, and the one of reset spring 136
End is fixedly connected with sliding block 135, and the other end of reset spring 136 is fixedly connected with the inner wall of inlet chamber 101；Film valve 131 and work
The setting of dynamic sealing plate 132 prevents device in Gas from entering in roots blower 9, plays very when roots blower 9 is idle
Strong sealing function；
Movable sealing plate 132 is made of two semicircle movable plates, and one end that two semicircle movable plates are located remotely from each other passes through pin
Axis is flexibly connected with the inner wall of air inlet mouth of pipe 13, and two semicircle movable plates one end close to each other is connected by elastic sealing layer,
And two semicircle movable plates one end side close to each other is flexibly connected with movable connecting rod 133；Two semicircle movable plates
Setting, enables roots blower 9 to open movable sealing plate 132 when generating negative pressure, movable connecting rod 133 and reset
The setting of spring 136, on the one hand improves the compression strength of movable sealing plate 132, and movable sealing plate 132 is on the other hand made to exist
It can automatically reset after opening；
It is fixedly connected with pressure sensor 14 in the middle part of the inner wall bottom surface of outlet chamber 102, the lower section of outlet chamber 102 is provided with control
Device 15 processed, controller 15 are fixedly mounted on the inside of apparatus main body 1；
A/D conversion module 16, data reception module 17, central processing unit 18, data processing mould are provided in controller 15
Block 19, first motor control module 20, the second motor control module 21 and N motor control module 22；Pass through controller 15
Variable-frequency motor is controlled, and then controls the operation of roots blower 9, on the basis of reducing people's consumption, improves the work of supercharging device
Efficiency.
As a kind of optional technical solution of the invention:
Intake valve is fixedly connected on admission line 2；
Air outlet valve is fixedly connected on outlet pipe 3.
As a kind of optional technical solution of the invention:
Variable-frequency motor 5 includes the first variable-frequency motor 501, the second variable-frequency motor 502 and N variable-frequency motor 503；
The top middle portion of variable-frequency motor 5 is provided with machine shaft 51, and the bottom end of machine shaft 51 is fixedly connected with limit and inserts
Block 52；
The center bottom of roots blower 9 is provided with blower connecting shaft 91, and the top of blower connecting shaft 91 is fixedly connected with convex
Block 911；
The center bottom of convex block 911 offers limit slot 912, and limit slot 912 is adapted with limit inserted block 52.
As a kind of optional technical solution of the invention:
The quantity of roots blower 9 is equal with the quantity of variable-frequency motor 5；
Two middle side parts of roots blower 9 are fixedly connected to connecting pipe 92, connecting pipe 92 far from roots blower 9 one
End is adapted with gas passage 12；
Connecting pipe 92 is fixedly connected with sealing ring 921 far from one end of roots blower 9, and connecting pipe 92 is far from Roots
One end of blower 9 is set as inclined surface；Sealing ring 921 plays the role of sealing, and inclined surface, which plays, is easily installed disassembly
Effect.
As a kind of optional technical solution of the invention:
Bottom connecting plate 8 is made of jointing plate 81 and multiple buffer springs 82, multiple 82 rectangular arrays of buffer spring point
Cloth；
One end of buffer spring 82 is fixedly connected with the bottom end side wall of the second mounting groove 7, the other end of buffer spring 82 with
The side of jointing plate 81 is fixedly connected, and the other side of jointing plate 81 is fitted and connected by the bottom surface of cushion and roots blower 9；
Jointing plate 81 and buffer spring 82 are that roots blower 9 provides stable output environment；
As a kind of optional technical solution of the invention:
Buffering connector 11 is provided with multiple, and multiple buffering connectors 11 are equally distributed horizontally to the second mounting plate 10
Bottom surface in the middle part of；
Buffering connector 11 is made of telescopic rod 111, compressed spring 112 and pressing plate 113, one end of telescopic rod 111 and the
The bottom surface of two mounting plates 10 is fixedly connected, and the other end of telescopic rod 111 is fixedly connected with the side of pressing plate 113, compressed spring 112
It is socketed in the outside of telescopic rod 111, and the both ends of compressed spring 112 are fitted and connected the second mounting plate 10 and pressing plate 113 respectively, pressed
The other side of plate 113 is fitted and connected by sponge bed course and the top of roots blower 9；Telescopic rod 111, compressed spring 112 and pressure
The setting of plate 113 provides a lasting reaction force for roots blower 9, improves the stability of roots blower 9.
As a kind of optional technical solution of the invention:
The input terminal of the output end electrical connection A/D conversion module 16 of pressure sensor 14, the output end of A/D conversion module 16
It is electrically connected the input terminal of data reception module 17, the input of the output end electrical connection central processing unit 18 of data reception module 17
End, the output end of central processing unit 18 are electrically connected first motor control module 20, the second motor control module 21 and N electricity
The input terminal of machine control module 22；
The output end of first motor control module 20, the second motor control module 21 and N motor control module 22 is distinguished
It is electrically connected the input terminal of the first variable-frequency motor 501, the second variable-frequency motor 502 and N variable-frequency motor 503.
A kind of control method of device in Gas pretreatment supercharging device, which comprises the following steps:
Step 1: first by device in Gas by supply main pipe enter pretreatment system inlet valve, through entrance fire arrester into
Enter primary filter, then flows through condenser-steam-water separator and carry out cooling de-watering；
Step 2: again will treated that device in Gas is passed through supercharging device by filtering, separation etc.；
Step 3: and then starting controller 15 and roots blower 9, setup pressure value, controller 15 are controlled by variable-frequency motor 5
Roots blower 9 processed rotates, and is pressurized to device in Gas；
Step 4: when pressure sensor 14 detects that the pressure of outlet chamber 102 is unable to satisfy demand, first Roots's wind
The pid control circuit of machine 9 puts into automatic running pattern, adjusts outlet pressure；
Step 5: if first 9 frequency of roots blower reaches peak value, device in Gas is still unable to reach preset pressure value
When, first 9 operating mode of roots blower is switched to be run with the fixed frequency of peak value；
Step 6: and then controller 15 controls second roots blower 9 and starts, and second roots blower 9 is to determine in a manner of frequency
Given rotating speed puts into operation；
Step 7: when pressure sensor 14 detects that the pressure of outlet chamber 102 is unable to satisfy demand, second Roots's wind
The pid control circuit of machine 9 puts into automatic running pattern, adjusts outlet pressure；
Step 8: and so on, controller opens more roots blowers 9, until device in Gas reaches stabilization of export pressure
Purpose.
As a kind of optional technical solution of the invention:
Roots blower 9 in step 3 is made of N platform, and working method is parallel running.
As a kind of optional technical solution of the invention:
The output frequency of roots blower 9 is 20Hz-45Hz in above-mentioned steps, and wherein the operation peak value of roots blower 9 is
45Hz。
Working principle of the present invention:
Variable-frequency motor 5 during installation, is inserted into the first mounting groove 4 by the present apparatus first, then by clamping screw by the
One mounting plate 6 is fixedly mounted on apparatus main body 1, then roots blower 9 is put into the second mounting groove 7, so that 9 liang of roots blower
The connecting pipe 92 of side is connected to by sealing ring 921 with the sealing of gas passage 12, then covers the second mounting plate 10 in the second peace
On tankage 7, the second mounting plate 10 is fixedly mounted on apparatus main body 1 by fastening bolt, buffers connector 11 and sieve at this time
Thatch blower 9 closely connects, and the pressing plate 113 buffered in connector 11 is fitted and connected with roots blower 9, buffers the pressure in connector 11
112 stress of contracting spring provides a lasting reaction force for roots blower 9, so that the installation of roots blower 9 is more firm, works as sieve
After thatch blower 9 is installed, the blower connecting shaft 91 on roots blower 9 is connect with the machine shaft 51 on variable-frequency motor 5, motor
Limit inserted block 52 in shaft 51 is inserted into the limit slot 912 in 91 upper protruding block 911 of blower connecting shaft.
The present apparatus at work, first turns on the intake valve on admission line 2, at this time device in Gas by admission line 2 into
Enter in inlet chamber 101, then start variable-frequency motor 5 and controller 15, variable-frequency motor 5 passes through machine shaft 51 and blower connecting shaft
91 drive roots blowers 9 to rotate, and the operation of roots blower 9 generates negative-pressure sucking, by air inlet mouth of pipe 13 film valve 131 and activity
Sealing plate 132 is opened, and device in Gas is entered in roots blower 9 by air inlet mouth of pipe 13 and gas passage 12 at this time, by Roots's wind
After the pressurization of machine 9, entered in outlet chamber 102 by gas passage 12, the pressure sensor 14 in outlet chamber 102 detects at this time
The pressure change of device in Gas, if the outlet pressure of device in Gas is unable to satisfy demand, data that pressure sensor 14 will test
It is transferred to A/D conversion module 16, after data are converted digital signal by A/D conversion module 16, is passed by data reception module 17
It is defeated by central processing unit 18, after the processing of data processing module 19, central processing unit 18 passes through first motor control module 20
Control the first variable-frequency motor, the first variable-frequency motor is controlled the first roots blower and run with peak value, if the outlet pressure of device in Gas
When having not been met demand, central processing unit 18 controls the second variable-frequency motor, the second frequency conversion by the second motor control module 21
The starting of the second roots blower of motor control, is further pressurized device in Gas, and so on, until the pressure of device in Gas meets
Demand.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in second feature
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact "up" or "down".
Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or tiltedly
Top, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section " and
" following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of first feature horizontal height less than
Two features.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of device in Gas pre-processes supercharging device, including apparatus main body (1), it is characterised in that: described device main body (1) it is interior
Chamber two sides offer inlet chamber (101) and outlet chamber (102) respectively, and the middle part lower end of described device main body (1) offers first
Mounting groove (4), and the middle part upper end of apparatus main body (1) offers the second mounting groove (7)；
One middle side part of described device main body (1) is fixedly connected with admission line (2), one end of admission line (2) and inlet chamber
(101) it is connected, is fixedly connected with outlet pipe (3) in the middle part of the other side of described device main body (1), the one of outlet pipe (3)
End is connected with outlet chamber (102)；
It is provided with variable-frequency motor (5) in first mounting groove (4), the bottom of the variable-frequency motor (5) is fixedly connected with first
Mounting plate (6), first mounting plate (6) are fixedly connected by clamping screw with the center bottom of apparatus main body (1)；
It is fixedly connected with bottom connecting plate (8) in the bottom sidewall of second mounting groove (7), in second mounting groove (7)
It is provided with roots blower (9), bottom end and the bottom connecting plate (8) of roots blower (9) are fitted and connected, the roots blower (9)
Top is provided with the second mounting plate (10), and second mounting plate (10) passes through in the top of fastening bolt and apparatus main body (1)
Portion is fixedly connected, and underrun buffering connector (11) of second mounting plate (10) is bonded with the top of roots blower (9)
Connection；
The on both sides of the middle of second mounting groove (7) is provided with gas passage (12), and the gas passage (12) is opened in dress
It sets in main body (1)；
It is fixedly connected with pressure sensor (14) in the middle part of the inner wall bottom surface of the outlet chamber (102), under the outlet chamber (102)
Side is provided with controller (15), and the controller (15) is fixedly mounted on the inside of apparatus main body (1)；
A/D conversion module (16), data reception module (17), central processing unit (18), number are provided in the controller (15)
According to processing module (19), first motor control module (20), the second motor control module (21) and N motor control module
(22)。
2. a kind of device in Gas according to claim 1 pre-processes supercharging device, it is characterised in that:
Intake valve is fixedly connected on the admission line (2)；
Air outlet valve is fixedly connected on the outlet pipe (3).
3. a kind of device in Gas according to claim 1 pre-processes supercharging device, it is characterised in that:
The variable-frequency motor (5) includes the first variable-frequency motor (501), the second variable-frequency motor (502) and N variable-frequency motor (503)；
The top middle portion of the variable-frequency motor (5) is provided with machine shaft (51), and the bottom end of the machine shaft (51) is fixed to be connected
It is connected to limit inserted block (52)；
The center bottom of the roots blower (9) is provided with blower connecting shaft (91), and the top of the blower connecting shaft (91) is solid
Surely convex block (911) are connected with；
The center bottom of the convex block (911) offers limit slot (912), the limit slot (912) and limit inserted block
(52) it is adapted.
4. a kind of device in Gas according to claim 1 pre-processes supercharging device, it is characterised in that:
The quantity of the roots blower (9) is equal with the quantity of variable-frequency motor (5)；
Two middle side parts of the roots blower (9) are fixedly connected to connecting pipe (92), and the connecting pipe (92) is far from sieve
One end of thatch blower (9) is adapted with gas passage (12)；
The connecting pipe (92) is fixedly connected with sealing ring (921) far from the one end of roots blower (9), and connecting pipe (92)
One end far from roots blower (9) is set as inclined surface.
5. a kind of device in Gas according to claim 1 pre-processes supercharging device, it is characterised in that:
The bottom connecting plate (8) is made of jointing plate (81) and multiple buffer springs (82), and multiple buffer springs (82) are in square
Shape array distribution；
One end of the buffer spring (82) is fixedly connected with the bottom end side wall of the second mounting groove (7), the buffer spring (82)
The other end be fixedly connected with the side of jointing plate (81), the other side of the jointing plate (81) passes through cushion and Roots's wind
The bottom surface of machine (9) is fitted and connected.
6. a kind of device in Gas according to claim 1 pre-processes supercharging device, it is characterised in that:
The buffering connector (11) is provided with multiple, and multiple buffering connectors (11) are equally distributed horizontally to the second installation
In the middle part of the bottom surface of plate (10)；
The buffering connector (11) is made of telescopic rod (111), compressed spring (112) and pressing plate (113), the telescopic rod
(111) one end is fixedly connected with the bottom surface of the second mounting plate (10), the other end of the telescopic rod (111) and pressing plate (113)
Side be fixedly connected, the compressed spring (112) is socketed in the outside of telescopic rod (111), and the both ends of compressed spring (112)
It is fitted and connected the second mounting plate (10) and pressing plate (113) respectively, the other side of the pressing plate (113) passes through sponge bed course and Roots
The top of blower (9) is fitted and connected.
7. a kind of device in Gas according to claim 1 pre-processes supercharging device, it is characterised in that:
The input terminal of output end electrical connection A/D conversion module (16) of the pressure sensor (14), the A/D conversion module
(16) input terminal of output end electrical connection data reception module (17), the output end electrical connection of the data reception module (17)
The output end of the input terminal of central processing unit (18), the central processing unit (18) is electrically connected first motor control module
(20), the input terminal of the second motor control module (21) and N motor control module (22)；
The output of the first motor control module (20), the second motor control module (21) and N motor control module (22)
End is electrically connected the input terminal of the first variable-frequency motor (501), the second variable-frequency motor (502) and N variable-frequency motor (503).
8. a kind of control method of device in Gas pretreatment supercharging device, which comprises the following steps:
Step 1: device in Gas is entered into pretreatment system inlet valve by supplying main pipe first, is entered just through entrance fire arrester
Grade filter then flows through condenser-steam-water separator and carries out cooling de-watering；
Step 2: again will treated that device in Gas is passed through supercharging device by filtering, separation etc.；
Step 3: and then starting controller (15) and roots blower (9), setup pressure value, controller (15) pass through variable-frequency motor
(5) control roots blower (9) rotation, is pressurized device in Gas；
Step 4: when pressure sensor (14) detects that the pressure of outlet chamber (102) is unable to satisfy demand, first Roots's wind
The pid control circuit of machine (9) puts into automatic running pattern, adjusts outlet pressure；
Step 5: if first roots blower (9) frequency reaches peak value, when device in Gas is still unable to reach preset pressure value,
First roots blower (9) operating mode is switched to be run with the fixed frequency of peak value；
Step 6: and then controller (15) controls second roots blower (9) starting, second roots blower (9) is to determine frequency side
Formula given rotating speed puts into operation；
Step 7: when pressure sensor (14) detects that the pressure of outlet chamber (102) is unable to satisfy demand, second Roots's wind
The pid control circuit of machine (9) puts into automatic running pattern, adjusts outlet pressure；
Step 8: and so on, controller (15) opens more roots blowers (9), until device in Gas reaches stabilization of export pressure
The purpose of power.
9. a kind of control method of device in Gas pretreatment supercharging device according to claim 8, it is characterised in that: the step
Roots blower (9) in rapid three is made of N platform, and working method is parallel running.
10. a kind of control method of device in Gas pretreatment supercharging device according to claim 8, it is characterised in that: described
The output frequency of roots blower (9) is 20Hz-45Hz in above-mentioned steps, and wherein the operation peak value of roots blower (9) is 45Hz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811148299.XA CN109296534B (en) | 2018-09-29 | 2018-09-29 | A kind of device in Gas pretreatment supercharging device and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811148299.XA CN109296534B (en) | 2018-09-29 | 2018-09-29 | A kind of device in Gas pretreatment supercharging device and its control method |
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| CN109296534B CN109296534B (en) | 2019-10-29 |
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| GB904502A (en) * | 1960-04-27 | 1962-08-29 | Hartzell Industries | Control for controllable pitch propeller or fan |
| JPS62228691A (en) * | 1986-03-15 | 1987-10-07 | Anretsuto:Kk | Roots type vacuum pump |
| JP2013072243A (en) * | 2011-09-28 | 2013-04-22 | Shin Meiwa Ind Co Ltd | Suction recovery device and suction vehicle |
| CN205535070U (en) * | 2016-02-02 | 2016-08-31 | 石家庄国融安能分布能源技术有限公司 | A gas boiler gas supply system for low pressure gas pipe network |
| CN205876719U (en) * | 2016-07-08 | 2017-01-11 | 天津君宇科技股份有限公司 | Twin -screw liquefied gas turbocharging system based on dry gas is sealed |
| CN207033740U (en) * | 2017-07-25 | 2018-02-23 | 华润电力（贺州）有限公司 | Roots Vacuum Pump Units device |
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2018
- 2018-09-29 CN CN201811148299.XA patent/CN109296534B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB904502A (en) * | 1960-04-27 | 1962-08-29 | Hartzell Industries | Control for controllable pitch propeller or fan |
| JPS62228691A (en) * | 1986-03-15 | 1987-10-07 | Anretsuto:Kk | Roots type vacuum pump |
| JP2013072243A (en) * | 2011-09-28 | 2013-04-22 | Shin Meiwa Ind Co Ltd | Suction recovery device and suction vehicle |
| CN205535070U (en) * | 2016-02-02 | 2016-08-31 | 石家庄国融安能分布能源技术有限公司 | A gas boiler gas supply system for low pressure gas pipe network |
| CN205876719U (en) * | 2016-07-08 | 2017-01-11 | 天津君宇科技股份有限公司 | Twin -screw liquefied gas turbocharging system based on dry gas is sealed |
| CN207033740U (en) * | 2017-07-25 | 2018-02-23 | 华润电力（贺州）有限公司 | Roots Vacuum Pump Units device |
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| Publication number | Publication date |
|---|---|
| CN109296534B (en) | 2019-10-29 |
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