CN202252126U - Concentrated control device for switching gas flow - Google Patents
Concentrated control device for switching gas flow Download PDFInfo
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- CN202252126U CN202252126U CN201120355361XU CN201120355361U CN202252126U CN 202252126 U CN202252126 U CN 202252126U CN 201120355361X U CN201120355361X U CN 201120355361XU CN 201120355361 U CN201120355361 U CN 201120355361U CN 202252126 U CN202252126 U CN 202252126U
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- driving mechanism
- ball valves
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Abstract
The utility model relates to a concentrated control device for switching gas flow, the concentrated control device for switching gas flow is characterized by comprising a throttling flow conversion valve set, an overflow adjustment valve set and a driving mechanism; the throttling flow conversion valve set comprises a four-position five-way ball valve, a two-position two-way ball valve and an external interface; the overflow adjustment valve set comprises a four-position five-way ball valve, a two-position two-way ball valve and an external interface; the driving mechanism comprises a base and a motor; and the driving wheel of the driving mechanism drives a driven wheel, a driven wheel shaft and the four-position five-way ball valve. The utility model has the following beneficial effects that: different preset flow rates can be precisely converted for online and automatic control of a system; different preset flows can be manually converted in concentrated operation for debugging the system, and the flow adjustment area can be extended and the throttling back pressure can be controlled within a certain area in a flow adjustment manner combined with the throttling manner and the overflowing manner.
Description
Technical field
The utility model relates to gas control equipment, the central control device that particularly a kind of gas flow switches.
Background technique
In pneumatic automatic control technology, use electronic control throttle valve or relief valve to carry out the automatic control of centralized gas flow conversion usually.When needs carry out the accurate conversion and control of target flow, then generally must adopt " PID " or " bluring " control technique to realize the fixed point adjusting of flow.This just makes that control is complicated, and the conversion of flow point has time lag, and the technician who also needs a capability could accomplish.In the less control system of small flow gas circuit and flow point, its cost performance is very poor.
Summary of the invention
The flow that the purpose of the utility model provides a kind of four flow point switch type throttlings that are easy to realize and overflow mode and usefulness switches central control device to remedy the deficiency of existing technology.
The technological scheme that the utility model adopts is: the central control device that a kind of gas flow switches is characterized in that: comprise throttle type flow conversion valve group I, overflow modulating valve group II and driving mechanism III; Throttle type flow conversion valve group comprises four five-way ball valves 1,2/2-way ball valve 2,3,4, orifice plate throttling element 5 and the external tapping A, B, the C that are connected into by pipeline connecting parts; Overflow modulating valve group II comprises four five-way ball valves 6,2/2-way ball valve 7,8, orifice plate throttling element 9 and the external tapping D that is connected into by pipeline connecting parts; External tapping C and D are communicated with through pipe E; The driving mechanism III comprises pedestal 10 and band retarder AC motor 11; The valve body 1a of four five-way ball valves 1 and the valve body 6a of four five-way ball valves 6 all integral installation on the pedestal 10 of driving mechanism; Driving wheel 16 engagement of driving mechanism III also drives follower 17a, 17b, and the follower shaft 18a of follower 17a, 17b, 18b connect respectively and drive four five-way ball valves 1 and four five-way ball valves 6; Follower 17a, 17b are provided with permanent magnet 20a, 20b, on pedestal 10, with permanent magnet 20a, the 20b position that adapts magnetoelectric transducer 21a, 21b are arranged.
The central control device that described a kind of gas flow switches; It is characterized in that: drive sprocket axle 15 is provided with reverse free wheel device; Reverse free wheel device comprises initiatively wheel disc 13 and driven wheel disc 14, and initiatively wheel disc 13 end face teeth cooperate with driven wheel disc 14 end face teeth.
The beneficial effect of the utility model is: the utility model is controlled the driving mechanism motor through " switching value "; Through detection to " switching value " of position transducer; The accurate conversion of the different flow that can realize setting up is in advance used for the online automatic control of system; If use handle to the contrary motor traffic direction revolution of driving mechanism drive sprocket axle; The manual centralized operation conversion of the different flow that can realize setting up in advance; Use for system debug, the Flow-rate adjustment mode that the utility model adopts throttling to cooperate with overflow not only can enlarge flow adjustment range but also can control the throttling back pressure within the specific limits; The utility model does not relate to complicated control technique, and property/price ratio is better, is particularly suitable for the flow transition point is few, require the middle small flow gas circuit of certain degree of accuracy flow flow conversion and control and operation.The utility model adopts ball valve as fluid circuit conversion and overflow by-pass cock, and the control loop that has leak-down rate to require is had more significant effect, is well suited for being used to needing the terminal control flow rate of the gas circuit that minority flow point changes.
Description of drawings
Fig. 1 is the utility model embodiment's an overall structure front-view schematic diagram.
Fig. 2 is the utility model embodiment's an overall structure schematic rear view.
Fig. 3 is the schematic representation of the utility model embodiment's throttle type flow conversion valve group I.
Fig. 4 is the schematic representation of four five-way ball valves 1 of the utility model embodiment.
Fig. 5 is the schematic representation of the utility model embodiment's overflow controlling mechanism II.
Fig. 6 is the schematic representation of four five-way ball valves 6 of the utility model embodiment.
Fig. 7 is the utility model embodiment's the driving mechanism III and the schematic representation of reverse free wheel device.
Fig. 8 is the utility model embodiment's a schematic diagram of gas circuit.
Pass through embodiment below, and combine accompanying drawing that the utility model is further described.
Embodiment
Embodiment: four five-way ball valves 1 are " 1 goes into 4 goes out " structure, and 2/2-way ball valve 2,3 is connected the throttling that is used for flow respectively with orifice plate throttling element 5 to be regulated with 3 delivery outlets of four five-way ball valves 1; 2/2-way ball valve 4 all communicates with all delivery outlets of four five-way ball valves 1, and the total amount overflow that is used for flow is regulated; Four five-way ball valve 1 Front-end Design have " one " font key to cooperate with sliding cross coupling 19a, can rotate with follower 17a; When this device is used for negative pressure (suction atmosphere) work, go into (going out) mouthful place filter cap is installed at 2/2-way ball valve 2,3,4.
The follower 17b of four five-way ball valves, the 6 driven-mechanism III of overflow modulating valve group II drives and realizes rotating synchronously; Two 2/2-way ball valves 7,8 are connected the overflow that realizes three groups of flows respectively with orifice plate throttling element 9 to be regulated with 3 delivery outlets of four five-way ball valves 6; When this device is used for negative pressure (suction atmosphere) work, go into (going out) mouthful place filter cap is installed at 2/2-way ball valve 7,8.
It is drive source that a small-sized alternating current generator work 11 is installed on pedestal 10, is connected with drive sprocket axle 15 by reverse freewheel clutch; Two groups of driven pulley 17a, 17b are meshed in driving wheel 16 left and right sides, follower shaft 17a, last sliding cross coupling 19a, another shaft coupling four the five-way ball valves 1 of (another shaft coupling of symmetry does not cut in the drawings) connection and 6 of being equipped with of 17b; The hub medial surface of driven pulley 17a, 17b is equipped with permanent magnet 20a, the 20b of band magnetic shield; On the ring flange at corresponding matrix 10 positions of permanent magnet 20a, 20b, magnetoelectric transducer 21a, 21b are installed; Magnetoelectric transducer 21a, every group of quantity of 21b are 4, and on circumference, become 90 ° of installations.Permanent magnet 20a, 20b trigger the rotational position signal that four five-way ball valves 1 and 6 are provided to magnetoelectric transducer 21a, 21b, and the per quart commentaries on classics triggers magnetoelectric transducer 21a, 21b once simultaneously, export a switch (level) amount.
Four five-way ball valves 1 and 6 comprise valve body 1a, 6a, and spool 1b, 6b and ball face sealing connect plug; Valve body 1a, 6a are square body and cylindrical body assemblying body, and line runs through cylindrical body and square body to a circular hole along the cylindrical body axle center, on square body 4 faces parallel with cylindrical body, are drilled with vertical through hole; Spool 1b, 6b are the cylindrical body of a middle part globulate; There are one " Γ " font hole in spool 1b, 6b heart portion; Cause the centre of sphere from the middle part ball top of ball and vertically penetrate the cylinder center to cylindrical body one end again, spool 1b, cylindrical another termination of 6b have " one " font key to cooperate with sliding cross coupling 19a, another coupling; Ball face sealing connects plug and is installed in respectively on 5 holes (1A, 1B, 1C, 1D, 1E and 6A, 6B, 6C, 6D, 6E) of valve body, fits through Sealing and spool 1b, 6b and form sealing in the inner end, and the outer end has screw thread to be used for the connection of return; Spool 1b, 6b Cylinder one end connect source of the gas, and 4 holes on valve body 1,6 square bodys are connected with the throttling adjusting of flow or the overflow adjusting part of flow respectively.
Reverse free wheel device is to comprise two coaxial active wheel discs 13 and driven wheel disc 14 with end face tooth.Initiatively wheel disc 13 is slidingly fitted on the output shaft of motor 11 retarders, and its back side is equipped with axial compression spring 12 and makes initiatively wheel disc 13 flank of tooth and the applying of driven wheel disc 14 flank of tooth; Initiatively the profile of tooth of wheel disc 13 and driven wheel disc 14 is "
" shape along the circumference developed surface, and initiatively wheel disc 13 relatively oppositely meshes with driven wheel disc 14 gear teeth; When motor 11 drive active wheel discs 13 forward rotate; The initiatively right angle minor face engagement of wheel disc 13 and driven wheel disc 14 "
" shape tooth, driven wheel disc 14 ability quilts initiatively wheel disc 13 drive; When manual reverse rotation follower shaft 18a, 18b; Initiatively the hypotenuse of wheel disc 13 and driven wheel disc 14 "
" shape tooth is fitted and is rotated; Produce the initiatively spring 12 of wheel disc 13 ear end faces of end thrust compression; Initiatively wheel disc 13 is realized the transmission separation along yieldings that endwisely slip of motor 11 reducer output shafts.
One end of main drive shaft 15 is installed main driving wheel 16, indicator panel 22 in order, and the front end of main drive shaft 15 is that handle connects and to use six square toes, main drive shaft 15 by two groups of roller bearings in the support mounting hole; Follower 17a, 17b and follower shaft 18a, 18b by roller bearings in two mounting holes in addition of support; And the left and right sides and driving wheel 16 engagements, two groups of driven shaft 18a, 18b pass through sliding cross coupling 19a, another coupling transferring power of its axle head.
After throttle type flow conversion valve group I of the utility model and overflow modulating valve group II are installed on the pedestal 10 of driving mechanism III; E is connected interface C with interface D through pipe; Flow conversion valve group I and overflow modulating valve group II are connected in the same gas circuit, and interface A and B are the external tapping of whole device.Four valve marks
of 1 1B, 1C, 1D, the 1E of corresponding four five-way ball valves 1 successively from bottom to up in the schematic diagram of gas circuit after the utility model assembling is accomplished.During 90 ° of spool 1b revolutions, interface 1A-1B, 1A-1C, 1A-1D, 1A-1E become on-state in order; Four valve marks in the schematic diagram of gas circuit
are 1B, 1C, 1D, the 1E interface of corresponding successively four five-way ball valves 6 from top to bottom; During 90 ° of spool 6b revolutions, interface 6A-6B, 6A-6C, 6A-6D, 6A-6E become on-state in order; 2,3,4,5,7,8,9 is corresponding with jack per line 2/2-way ball valve and orifice plate throttling element respectively in the schematic diagram of gas circuit.
Automatic control mode.
The A mouth is the gas circuit inlet, and the B mouth is the gas circuit outlet.
Original state.
First kind of working flow.
Be in and make interface 1A-1B on positi if original state is throttle type flow conversion valve group I spool 1b; Overflow modulating valve group II spool 6b is in and makes interface 6A-6B on positi, then when air-flow when the A mouth gets into the utility model device, behind A-1F-1B-1A; D is blocked at port; The part air-flow is from 4 overflows of 2/2-way ball valve, and main air flow is from the output of B mouth, and gas circuit is work under first kind of flow setting; Permanent magnet 20a, 20b are in the position of triggering first magnetoelectric transducer 21a, 21b respectively at this moment, can be respectively to system's delivery valve group I and the current station signal of valve group II.
Second kind of working flow conversion.
Starting electrical machinery 11 makes driving wheel 16 be rotated counterclockwise 90 °; So follower 17a, 17b through driven shaft 18a, 18b drive spool 1b and spool 6b synchronously clockwise 90 ° of revolutions get into the utility model device flow conversion valve group I through A-2/2-way ball valve 3 throttlings-1C-1A arrival C mouth from the A mouth when air-flow, the part air-flow is by 4 overflows of 2/2-way ball valve; Part gas flowing pipe E arrives overflow orifice plate 9 through 6A-6C, in this overflow from D mouth flow valves group II; Main air flow is exported from the B mouth.This moment, system detected the output signal that permanent magnet 20a, 20b are in second magnetoelectric transducer 21a of triggering, 21b respectively, made motor stop operating, and gas circuit is work under second kind of flow setting.
The third working flow conversion.
Restarting motor 11 makes driving wheel 16 be rotated counterclockwise 90 °; So follower 17a, 17b through driven shaft 18a, 18b drive spool 1b and spool 6b synchronously clockwise 90 ° of revolutions get into the utility model device flow conversion valve group I through A-2/2-way ball valve 2 throttlings-1D-1A arrival C mouth from the A mouth when air-flow, the part air-flow is by 4 overflows of 2/2-way ball valve; Part gas flowing pipe E is from D mouth flow valves group II, through 6A-6D to 2/2-way ball valve 8, in this overflow; Main air flow is exported from the B mouth.This moment, system detected the output signal that permanent magnet 20a, 20b are in the 3rd magnetoelectric transducer 21a of triggering, 21b respectively, made motor stop operating, and gas circuit is work under the third flow of setting.
Continue starting electrical machinery 11 and make driving wheel 16 another mistake hour hands half-twists; So follower 17a, 17b through driven shaft 18a, 18b drive spool 1b and spool 6b synchronously clockwise 90 ° of revolutions get into the utility model device flow conversion valve group I through A-2/2-way ball valve 5 throttlings-1E-1A arrival C mouth from the A mouth when air-flow, the part air-flow is by 4 overflows of 2/2-way ball valve; Part gas flowing pipe E is from D mouth flow valves group II, through 6A-6E to 2/2-way ball valve 7, in this overflow; Main air flow is exported from the B mouth.This moment, system detected the output signal that permanent magnet 20a, 20b are in the 4th magnetoelectric transducer 21a of triggering, 21b respectively, made motor stop operating, and gas circuit is work under the 4th kind of flow of setting.
Machine is rotated further 90 ° of gas circuits and replys original state.
Manual centralized operation mode.
During manually-operable, use handle clockwise direction rotary driving wheel axle 15, the free wheel device that is fixed on the driving wheel axle head skids from the wheel disc 14 and the end tooth inclined-plane applying of active wheel disc 13, and driving wheel 16 breaks away from the motor reducer revolution.The driving wheel revolution obtains a flow set point for 90 °, and its order is opposite with above-mentioned automatic control flow point; The manually-operable position is indicated by the sign on the indicator panel 22.
Claims (2)
- , the central control device that switches of a kind of gas flow, it is characterized in that: comprise throttle type flow conversion valve group (I), overflow modulating valve group (II) and driving mechanism (III); Throttle type flow conversion valve group comprises four five-way ball valves (1), 2/2-way ball valve (2), (3), (4), orifice plate throttling element (5) and the external tapping (A), (B), (C) that are connected into by pipeline connecting parts; Overflow modulating valve group (II) comprises four five-way ball valves (6), 2/2-way ball valve (7), (8), orifice plate throttling element (9) and the external tapping (D) that is connected into by pipeline connecting parts; External tapping (C) and (D) be communicated with through pipe (E); Driving mechanism (III) comprises pedestal (10) and band retarder motor (11); The valve body (1a) of four five-way ball valves (1) and the valve body (6a) of four five-way ball valves (6) all integral installation on the pedestal (10) of driving mechanism; The engagement of the driving wheel (16) of driving mechanism (III) also drives follower (17a), (17b), and the follower shaft (18a) of follower (17a), (17b), (18b) connect respectively and drive four five-way ball valves (1) and four five-way ball valves (6); Follower (17a), (17b) are provided with permanent magnet (20a), (20b), go up and there are magnetoelectric transducer (21a), (21b) in permanent magnet (20a), (20b) position that adapts at pedestal (10).
- 2. the central control device that a kind of gas flow as claimed in claim 1 switches; It is characterized in that: drive sprocket axle (15) is provided with reverse free wheel device; Reverse free wheel device comprises initiatively wheel disc (13) and driven wheel disc (14), and initiatively wheel disc (13) end face tooth cooperates with driven wheel disc (14) end face tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120355361XU CN202252126U (en) | 2011-09-22 | 2011-09-22 | Concentrated control device for switching gas flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120355361XU CN202252126U (en) | 2011-09-22 | 2011-09-22 | Concentrated control device for switching gas flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252126U true CN202252126U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120355361XU Expired - Fee Related CN202252126U (en) | 2011-09-22 | 2011-09-22 | Concentrated control device for switching gas flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364181A (en) * | 2011-09-22 | 2012-02-29 | 宜宾机电一体化研究所 | Central control device for gas flow switching |
-
2011
- 2011-09-22 CN CN201120355361XU patent/CN202252126U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364181A (en) * | 2011-09-22 | 2012-02-29 | 宜宾机电一体化研究所 | Central control device for gas flow switching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130922 |