CN107387418A - A kind of FSEDT series electronics time-delay differential pressure controller - Google Patents
A kind of FSEDT series electronics time-delay differential pressure controller Download PDFInfo
- Publication number
- CN107387418A CN107387418A CN201710723220.0A CN201710723220A CN107387418A CN 107387418 A CN107387418 A CN 107387418A CN 201710723220 A CN201710723220 A CN 201710723220A CN 107387418 A CN107387418 A CN 107387418A
- Authority
- CN
- China
- Prior art keywords
- cage assembly
- fixedly connected
- cross recess
- push rod
- differential pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- 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
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Abstract
The invention discloses a kind of FSEDT series electronics time-delay differential pressure controller.It includes the parts such as machine driving, pressure input, pressure differential resetting instruction, signal control computing output function and formed.By being set up on demand to pressure differential resetting indicator function part --- stirring regulation ratchet makes finger be directed to required pressure difference, so that the pressure differential resetting value of time-delay differential pressure controller can carry out free setting in prescribed limit according to the demand of different refrigeration system compressors.Electronic delay differential pressure controller can protect refrigeration system compressor normal table to run.Realize that node computing, the function of controlling are minimized control system cost because having, allow resource more reasonably to apply.
Description
Technical field
The present invention relates to differential pressure controller technical field, specially a kind of FSEDT series electronics time-delay differential pressure controller.
Background technology
FSED series time-delay differential pressure controllers are a kind of safety switches of oil pressure protection, are exempted from available for protection refrigeration compressor
Pressed through low by Lubricating Oil and damaged.It is it is a kind of automatically control and protection device, its operation principle are to be based on dynamic balance,
Combined by spring, two relative bellowss and other mechanical parts in arithmetic and control unit, mechanical signal is entered
Exported after row operation amplifier：Reach time-delay differential pressure switch value output function demand, system oil pressure difference is controlled.
FSED35T series electronics time-delay differential pressure controller is held accurately, to electronic operation to the design considerations of flexible member
Controller associated specifications are accurately bright, grasped skillfully to welding every technology.The time-delay differential pressure controller produced at present（Heating
Resistance and bimetal leaf）Although the requirement that most clients are controlled pressure difference at the appointed time can be met, delay switch
The time value of setting is influenced by ambient temperature greatly in output valve (setting pressure difference/setting time), and the delay adjustmentses time needs to change
Heating resistor, it could complete to cause each refrigeration system compressor to need to develop different time-delay differential pressure controllers, put forward cost
It is high, it is impossible to allow resource more reasonably to apply, so as to cause the market competitiveness not strong.
The content of the invention
（One）The technical problem of solution
For the function deficiency of existing product, and poor reliability, the invention provides a kind of FSEDT series electronics time-delay differential pressure control
Device processed, possessing the pressure difference switch amount output in accurate control delay, pressure difference switch value can adjust setting in regulation codomain, so as to
The advantages that improving market competition dynamics, its delay time can not accurately be controlled by solving, the problem of causing the market competitiveness not strong.
（Two）Technical scheme
To achieve the above object, the present invention provides following technical scheme：A kind of FSEDT series electronics time-delay differential pressure controller, bag
Cage assembly is included, the side of the cage assembly passes through the 6th cross recess button-headed screw and the 7th cross recess button-headed screw
Time delay module assembly is fixedly connected with, the top of the cage assembly is fixedly connected with connecting plate, the connection by fixed block
Distinguish through the first cross recess button-headed screw, the bottom of the first cross recess button-headed screw is connected with the inner chamber of plate side
Through connection fixing block and cage assembly and the inner chamber of cage assembly is extended to, the connecting plate is away from the first cross recess semicircle
The inner chamber of head screw side, which is run through, is connected with the second cross recess button-headed screw, the bottom of the second cross recess button-headed screw
Run through and extend to the inner chamber of cage assembly, the top of the connecting plate and the bottom of cage assembly pass through the 3rd cross recess
Button-headed screw is fixedly connected with gas tank part, and the top of connecting plate and the bottom of cage assembly and gas tank part junction
Gas tank pad is provided with, the outside screw of two gas tank parts is socketed with copper nut；
Thread groove inner thread at the top of the cage assembly is socketed with set screw, and the top of the set screw outer wall is fixed
Adjustment disk is connected with, base is fixedly connected with the top of the adjustment disk, and base is located at the bottom of gas tank part, the base
Bottom be connected with push rod A, push rod A bottom and be connected with push rod B, the bottom of the push rod A and push rod B bottom
Portion has been fixedly connected with pressure difference regulation spring, and one end of the pressure difference regulation spring is fixedly connected on shell by spring collar
The inside of assembly, lever plate is fixedly connected with the outside of the bottom of the push rod B, the bottom of the cage assembly is kept off by opening
Circle is connected with long lever pin, and side of the long lever pins position in the middle part of the bottom of lever plate, the lever plate is fixedly connected
There is fine motion bar, pressure indication is fixedly connected with the outside of the top of the fine motion bar, the inside of the cage assembly is fixedly connected
Limit switches, and limit switch is located at the top of fine motion bar；
The inside of the cage assembly is fixedly connected with low pressure arm-tie, and the side of the low pressure arm-tie passes through the 4th the 5th cross recess
Button-headed screw is fixedly connected with scale-board, and scale-board is located at the front surface of pressure indication, and the side of the cage assembly is consolidated
Surely offer into coil, it is described enter coil be located at the bottom of time delay module assembly.
Preferably, the side of the time delay module assembly is provided with enclosing cover, and the enclosing cover passes through cross recess button-headed screw
The side of cage assembly is fixedly connected on, the size of the enclosing cover is adapted with the size of cage assembly.
Preferably, the quantity of the 3rd cross recess button-headed screw is that the 3rd cross recess button-headed screw is uniform
It is distributed in the outer surface of two gas tank parts.
Preferably, the gas tank pad is annular, and the size of gas tank pad is adapted with the size of gas tank part.
Preferably, the push rod B and push rod A equal length, and push rod B length adds push rod A length more than outer
The length of housing assy.
Preferably, the front surface of the cage assembly is fixedly connected with cup type packing ring, and it is total that the cup type packing ring is used for shell
Into ground connection.
Preferably, the hand of spiral of the set screw is identical with push rod A hand of spiral.
（Three）Beneficial effect
Compared with prior art, the invention provides a kind of FSEDT series electronics time-delay differential pressure controller, possesses following effect：
1st, the FSEDT series electronic time-delay differential pressure controllers, pass through matching somebody with somebody between set screw, adjustment disk, push rod A and base
Close, rotating adjustment disk just can change the position of base, so as to change the pressure set points of time-delay differential pressure controller, make time-delay differential pressure
The pressure set points of controller can be modified according to the demand of different refrigeration system compressors, make time-delay differential pressure controller can
To protect the operation of the normal table of all kinds of refrigeration system compressors, also it is minimized cost, so as to make resource more reasonable
Application.
2nd, the FSEDT series electronic time-delay differential pressure controllers, pass through gas tank part, fixed block, connecting plate, the second cross recess
Cooperation between button-headed screw and the 3rd cross recess button-headed screw, the space that adjustment disk moves up and down is increased, so as to
It can will increase in the range of the change of the pressure set points of time-delay differential pressure controller, time-delay differential pressure controller is protected more
Different types of refrigeration system compressor, the usable scope of time-delay differential pressure controller is lifted, so as to lift time-delay differential pressure control
The market competitiveness of device.
Brief description of the drawings
Fig. 1 is a kind of positive structure diagram of FSEDT series electronics time-delay differential pressure controller proposed by the present invention；
Fig. 2 is a kind of side structure schematic view of FSEDT series electronics time-delay differential pressure controller proposed by the present invention.
In figure：1 cage assembly, 2 time delay module assemblies, 3 enclosing covers, 4 lever plates, 5 pressure differences regulation spring, 6 gas tank parts, 7
Spring collar, 8 set screws, 9 adjustment disks, 10 fixed blocks, 11 pressure indications, 12 scale-boards, 13 push rod B, 14 push rod A, 15
Coil, 22 long levers are entered in cup type packing ring, 16 bases, 17 connecting plates, 18 gas tank pads, 19 copper nuts, 20 low pressure arm-ties, 21
Pin, 23 split washers, 24 first cross recess button-headed screws, 25 second cross recess button-headed screws, 26 the 3rd cross recess semicircles
Head screw, 27 the 4th cross recess button-headed screws, 28 the 5th cross recess button-headed screws, 29 the 6th cross recess button-headed screws,
30 the 7th cross recess button-headed screws, 31 fine motion bars, 32 limit switches.
Embodiment
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 clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-2, a kind of FSEDT series electronics time-delay differential pressure controller, including cage assembly 1 are referred to, cage assembly 1
Side is fixedly connected with and prolonged by the 6th cross recess button-headed screw 29 and the 7th the 5th the 5th cross recess button-headed screw 28
When module assembly 2, the inner member of time delay module assembly 2 sets the precision and reliability for improving existing product delay time, from
And ensure by control system safety and normal operation, delay time is to utilize the soft of the PIC single chip microcomputer in electronic delay module
Part control, delay time can arbitrarily be set according to customer demand, and delay time is accurate, and the side of time delay module assembly 2 is set
Enclosing cover 3 is equipped with, sets enclosing cover 3 to be used for protecting time delay module assembly 2 without damage, improves the use of time delay module assembly 2
Life-span, enclosing cover 3 are fixedly connected on the side of cage assembly 1 by the 5th cross recess button-headed screw 28, the size of enclosing cover 3 with it is outer
The size of housing assy 1 is adapted, and passes through the connection side person who happens to be on hand for an errand of the 5th cross recess button-headed screw 28 between enclosing cover 3 and cage assembly 1
Removing and installing to enclosing cover 3, make worker repair or change time delay module assembly 2 when enhanced convenience it is laborsaving,
The front surface of cage assembly 1 is fixedly connected with cup type packing ring 15, and cup type packing ring 15 is located at the bottom of time delay module assembly 2, sets
Cup type packing ring 15 makes that some distances can be stayed between enclosing cover 3 and cage assembly 1, can so avoid enclosing cover 3 and the time delay module total
Directly contacted into 2, prevent worker from damaging time delay module assembly 2 when closing enclosing cover 3 after repairing, improve time delay module assembly
2 service life, the consumption of time delay module assembly 2 is reduced, is more reasonably utilized resource, the top of cage assembly 1
Portion is fixedly connected with connecting plate 17 by fixed block 10, and the inner chamber of the side of connecting plate 17, which is run through, is connected with the first cross recess cup head
Screw 24, the bottom of the first cross recess button-headed screw 24 extend through connection fixing block 10 and cage assembly 1 and extended to
The inner chamber of cage assembly 1, inner chamber of the connecting plate 17 away from the side of the first cross recess button-headed screw 24, which is run through, is connected with the 20th
Word groove button-headed screw 25, the bottom of the second cross recess button-headed screw 25 are run through and extend to the inner chamber of cage assembly 1, pass through
Gas tank part 6, fixed block 10, connecting plate 17, the second cross recess button-headed screw 25 and the 3rd cross recess button-headed screw 26
Between cooperation, the space that adjustment disk 9 moves up and down is increased, so as to by the pressure set points of time-delay differential pressure controller
Increase in the range of change, time-delay differential pressure controller is protected more different types of refrigeration system compressors, lifting delay
The usable scope of differential pressure controller, so as to lift the market competitiveness of time-delay differential pressure controller, the top of connecting plate 17 and
The bottom of cage assembly 1 is fixedly connected with gas tank part 6, the 3rd cross recess semicircle by the 3rd cross recess button-headed screw 26
The quantity of head screw 26 is eight, and eight the 3rd cross recess button-headed screws 26 are evenly distributed on the appearance of two gas tank parts 6
Face, each gas tank part 6 are fixed with the 3rd cross recess button-headed screw 26, so strengthen the steady of gas tank part 6
It is qualitative, make gas tank part 6 fix it is even closer, gas tank part 6 will not fall off at work, and the top of connecting plate 17 and
The bottom of cage assembly 1 and the junction of gas tank part 6 are provided with gas tank pad 18, and gas tank pad 18 is annular, and gas tank
The size of pad 18 is adapted with the size of gas tank part 6, sets gas tank pad 18 to ensure cage assembly 1 and gas tank part
Sealing between 6, ensure between cage assembly 1 and gas tank part 6 will not gas leakage, when improving time-delay differential pressure controller work
Stability and accuracy, it is ensured that by control system safety and normal operation, the outside screw socket of two gas tank parts 6
There is copper nut 19, set copper nut 19 to facilitate the installation of time-delay differential pressure controller.
The thread groove inner thread at the top of cage assembly 1 is socketed with set screw 8, and the top of the outer wall of set screw 8 is fixed
Adjustment disk 9 is connected with, so rotation adjustment disk 9 just can control to adjust moves down on the base 16 at the top of the drive of screw 8 cage assembly 1
It is dynamic, change the elastic force between the base 16 at the top of cage assembly 1 and the top of cage assembly 1, change movement and move up push rod A14
With the pressure needed for push rod B13, so as to reach change time-delay differential pressure controller pressure set points purpose, the top of adjustment disk 9
Portion is fixedly connected with base 16, and base 16 is located at the bottom of gas tank part 6, and the bottom of base 16 is connected with push rod A14,
The hand of spiral of set screw 8 is identical with push rod A14 hand of spiral, can so ensure set screw 8 drive base 16 to
When upper mobile, push rod A14 may remain in place put it is motionless, it is ensured that be connected together all the time between push rod A14 and push rod B13,
By the cooperation between set screw 8, adjustment disk 9, push rod A14 and base 16, rotating adjustment disk 9 just can change base 16
Position, so as to change the pressure set points of time-delay differential pressure controller, allow the pressure set points of time-delay differential pressure controller according to
The demand of different refrigeration system compressors is modified, and time-delay differential pressure controller is protected all kinds of refrigeration system compressors
The operation of normal table, is also minimized cost, and so as to allow resource more reasonably to apply, push rod A14 bottom is connected with
Push rod B13, push rod B13 and push rod A14 equal length, and push rod B13 length is total more than shell plus push rod A14 length
Into 1 length, it is such setting ensure that time-delay differential pressure controller work when stability, make up and down two footstocks 16 all the time with
Gas tank part 6 is connected together, it is ensured that the accuracy of time-delay differential pressure controller, push rod A14 bottom and push rod B13 bottom
Pressure difference regulation spring 5 has been fixedly connected with it, it is total that one end of pressure difference regulation spring 5 by spring collar 7 is fixedly connected on shell
Into 1 inside, lever plate 4 is fixedly connected with the outside of push rod B13 bottom, the bottom of cage assembly 1 passes through split washer 23
Long lever pin 22 is connected with, long lever pin 22 is used for the position of truck dead lever plate 4, prevents lever plate 4 from moving down excessively,
Ensure the stability of time-delay differential pressure controller, and long lever pin 22 is located at the bottom of lever plate 4, the side at the middle part of lever plate 4 is consolidated
Surely fine motion bar 31 is connected with, so setting fine motion bar 31, and then lever plate 4 moves up and down, the outside at the top of fine motion bar 31
Pressure indication 11 is fixedly connected with, pressure indication 11 is convenient for people to observe current pressure, also allows for when worker repairs to delay
The judgement of differential pressure controller trouble point, the inside of cage assembly 1 is fixedly connected with limit switches 32, and limit switch 32 is positioned at micro-
The top of lever 31, such setting, on the gas tank part 6 that two act on relative, two different pressures its differences are produced
Raw power utilizes spring balancing, when reaching setting value in setting delay time, due to leverage, drives fine motion bar 31 dynamic
Make, the limit switch 32 pressed is disconnected, and the relay of electronic delay module is failure to actuate, control loop normal work, as setting is prolonged
When time internal pressure difference when not reaching setting value, fine motion bar 31 is failure to actuate, always on by pressure limit switch 32, sets delay time
To the actuating of relay of rear electronic delay module, normally opened terminal is connected, and normally closed terminal disconnects, and cuts off control loop below, simultaneously
The bright alarm of red LED lamp, so as to be played a protective role to compressor, electronic delay differential pressure controller is mainly used in controlling compressor
The pressure difference change of lubricating oil oil pressure, when oil pressure difference is less than setting value, after delay time arrives, pass through the conversion hysteria contact of relay
The disconnection of control output circuit, damaged so as to protect compressor too low from oil pressure.
The inside of cage assembly assembly 1 is fixedly connected with low pressure arm-tie 20, and the side of low pressure arm-tie 20 passes through cross recess half
Cheese head screw 27 is fixedly connected with scale-board 12, the cooperation of scale-board 12 and pressure indication 11, is easy to observation of the people to pressure,
And scale-board 12 is located at the front surface of pressure indication 11, the side of cage assembly 1, which is fixed, to be offered into coil 21, enters coil 21
In the bottom of time delay module assembly 2.
The electric elements occurred in this article electrically connect with the main controller and 220V civil powers in the external world, and main controller can be meter
Calculation machine etc. plays the conventionally known equipment of control.
In summary, the FSEDT series electronic time-delay differential pressure controllers, pass through set screw 8, adjustment disk 9, push rod A14
And the cooperation between base 16, rotating adjustment disk 9 just can change the position of base 16, so as to change time-delay differential pressure controller
Pressure set points, the pressure set points of time-delay differential pressure controller are allow to be changed according to the demand of different refrigeration system compressors
It is dynamic, time-delay differential pressure controller is protected the operation of the normal table of all kinds of refrigeration system compressors, also cost is dropped
It is low, so as to allow resource more reasonably to apply, pass through gas tank part 6, fixed block 10, connecting plate 17, the second cross recess cup head
Cooperation between the cross recess button-headed screw 26 of screw 25 and the 3rd, increases the space that adjustment disk 9 moves up and down, so as to
Will increase in the range of the change of the pressure set points of time-delay differential pressure controller, time-delay differential pressure controller is set to protect more not
The refrigeration system compressor of same type, the usable scope of time-delay differential pressure controller is lifted, so as to lift time-delay differential pressure controller
The market competitiveness.
It should be noted that herein, such as and or the like relational terms be used merely to an entity or behaviour
Make with another entity or operation make a distinction, and not necessarily require or imply these entities or operate between exist it is any this
Kind actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Include so that process, method, article or equipment including a series of elements not only include those key elements, but also
Including the other element being not expressly set out, or also include for this process, method, article or equipment intrinsic want
Element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of FSEDT series electronics time-delay differential pressure controller, including cage assembly（1）, it is characterised in that：The cage assembly
（1）Side pass through the 6th cross recess button-headed screw（29）And the 7th cross recess button-headed screw（30）It is fixedly connected with and prolongs
When module assembly（2）, the cage assembly（1）Top pass through fixed block（10）It is fixedly connected with connecting plate（17）, the company
Fishplate bar（17）The inner chamber of side, which is run through, is connected with the first cross recess button-headed screw（24）, the first cross recess button-headed screw
（24）Bottom extend through connection fixing block（10）And cage assembly（1）And extend to cage assembly（1）Inner chamber, it is described
Connecting plate（17）Away from the first cross recess button-headed screw（24）The inner chamber of side, which is run through, is connected with the second cross recess cup head spiral shell
Nail（25）, the second cross recess button-headed screw（25）Bottom run through and extend to cage assembly（1）Inner chamber, the company
Fishplate bar（17）Top and cage assembly（1）Bottom pass through the 3rd cross recess button-headed screw（26）It is fixedly connected with gas
Box part（6）, and connecting plate（17）Top and cage assembly（1）Bottom and gas tank part（6）Junction is provided with
Gas tank pad（18）, two gas tank parts（6）Outside screw be socketed with copper nut（19）；
The cage assembly（1）The thread groove inner thread at top is socketed with set screw（8）, the set screw（8）Outer wall
Top be fixedly connected with adjustment disk（9）, the adjustment disk（9）Top be fixedly connected with base（16）, and base（16）Position
In gas tank part（6）Bottom, the base（16）Bottom be connected with push rod A（14）, the push rod A（14）Bottom
It is connected with push rod B（13）, the push rod A（14）Bottom and push rod B（13）Bottom be fixedly connected with pressure difference regulation bullet
Spring（5）, the pressure difference regulation spring（5）One end pass through spring collar（7）It is fixedly connected on cage assembly（1）Inside,
The push rod B（13）Bottom on the outside of be fixedly connected with lever plate（4）, the cage assembly（1）Bottom kept off by opening
Circle（23）It is connected with long lever pin（22）, and long lever pin（22）Positioned at lever plate（4）Bottom, the lever plate（4）
The side at middle part is fixedly connected with fine motion bar（31）, the fine motion bar（31）Top on the outside of be fixedly connected with pressure indication
（11）, the cage assembly（1）Inside be fixedly connected with limit switches（32）, and limit switch（32）Positioned at fine motion bar（31）
Top；
The cage assembly（1）Inside be fixedly connected with low pressure arm-tie（20）, the low pressure arm-tie（20）Side pass through
4 the 5th cross recess button-headed screws（28）It is fixedly connected with scale-board（12）, and scale-board（12）Positioned at pressure indication（11）'s
Front surface, the cage assembly（1）Side fix offer into coil（21）, it is described enter coil（21）It is total positioned at time delay module
Into（2）Bottom.
A kind of 2. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The delay
Module assembly（2）Side be provided with enclosing cover（3）, the enclosing cover（3）Pass through cross recess button-headed screw（28）It is fixedly connected on
Cage assembly（1）Side, the enclosing cover（3）Size and cage assembly（1）Size be adapted.
A kind of 3. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：Described 3rd
Cross recess button-headed screw（26）Quantity be the 3rd cross recess button-headed screw（26）It is evenly distributed on two gas tank portions
Part（6）Outer surface.
A kind of 4. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The gas tank
Pad（18）For annular, and gas tank pad（18）Size and gas tank part（6）Size be adapted.
A kind of 5. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The push rod B
（13）With push rod A（14）Equal length, and push rod B（13）Length add push rod A（14）Length be more than cage assembly（1）
Length.
A kind of 6. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The shell
Assembly（1）Front surface be fixedly connected with cup type packing ring（15）, the cup type packing ring（15）It is grounded for cage assembly.
A kind of 7. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The regulation
Screw（8）Hand of spiral and push rod A（14）Hand of spiral it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723220.0A CN107387418B (en) | 2017-08-22 | 2017-08-22 | FSEDT series electronic time-delay differential pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723220.0A CN107387418B (en) | 2017-08-22 | 2017-08-22 | FSEDT series electronic time-delay differential pressure controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107387418A true CN107387418A (en) | 2017-11-24 |
| CN107387418B CN107387418B (en) | 2023-07-07 |
Family
ID=60352804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710723220.0A Active CN107387418B (en) | 2017-08-22 | 2017-08-22 | FSEDT series electronic time-delay differential pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387418B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081636A (en) * | 1976-03-03 | 1978-03-28 | Johnson Controls, Inc. | Differential pressure cutout switch |
| US5219041A (en) * | 1992-06-02 | 1993-06-15 | Johnson Service Corp. | Differential pressure sensor for screw compressors |
| CN101403931A (en) * | 2008-10-21 | 2009-04-08 | 胡大舟 | Time-adjustable time-delay differential pressure controller and assembling method |
| CN201681761U (en) * | 2010-04-12 | 2010-12-22 | 上海奉申制冷控制器有限公司 | Pressure controller |
| CN106708117A (en) * | 2017-03-14 | 2017-05-24 | 上海奉申制冷控制器股份有限公司 | Pressure controller |
| CN207261252U (en) * | 2017-08-22 | 2018-04-20 | 上海奉申制冷控制器股份有限公司 | A kind of FSEDT series electronics time-delay differential pressure controller |
-
2017
- 2017-08-22 CN CN201710723220.0A patent/CN107387418B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081636A (en) * | 1976-03-03 | 1978-03-28 | Johnson Controls, Inc. | Differential pressure cutout switch |
| US5219041A (en) * | 1992-06-02 | 1993-06-15 | Johnson Service Corp. | Differential pressure sensor for screw compressors |
| CN101403931A (en) * | 2008-10-21 | 2009-04-08 | 胡大舟 | Time-adjustable time-delay differential pressure controller and assembling method |
| CN201681761U (en) * | 2010-04-12 | 2010-12-22 | 上海奉申制冷控制器有限公司 | Pressure controller |
| CN106708117A (en) * | 2017-03-14 | 2017-05-24 | 上海奉申制冷控制器股份有限公司 | Pressure controller |
| CN207261252U (en) * | 2017-08-22 | 2018-04-20 | 上海奉申制冷控制器股份有限公司 | A kind of FSEDT series electronics time-delay differential pressure controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107387418B (en) | 2023-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5713724A (en) | System and methods for controlling rotary screw compressors | |
| CN105090002B (en) | Refrigeration system and the diagnostic system for compressor | |
| CN104066995B (en) | Compressor sub controlling unit and compressor auxiliary control method thereof | |
| CN110201331A (en) | A kind of automatic security bottle system | |
| CN102681569A (en) | Temperature control system for outdoor control cabinet | |
| US20220259026A1 (en) | Load-sensing vehicle lift | |
| CN207261252U (en) | A kind of FSEDT series electronics time-delay differential pressure controller | |
| CN111350859A (en) | Device and method for detecting state of electric regulating valve | |
| CN108691759A (en) | Pressure control device | |
| CN107387418A (en) | A kind of FSEDT series electronics time-delay differential pressure controller | |
| CN209289121U (en) | A kind of electric socket wrench | |
| CN211426159U (en) | Gas density monitoring device and monitoring system for realizing maintenance-free density relay | |
| CN109899586B (en) | Digital intelligent valve positioner | |
| CN210775760U (en) | Transmitter and system for automatic on-line density checking relay | |
| CN204231840U (en) | Temperature control cold structure of electric actuator | |
| CN204176088U (en) | Electric actuator power mechanism | |
| CN2668889Y (en) | Intelligent control-start device for air compressor | |
| CN203813414U (en) | Protection device for thickener slewing bearing and drive motor | |
| CN104777745A (en) | Redundancy control circuit and redundancy control system | |
| CN209525745U (en) | A kind of electrical equipment control instrument measuring and controlling equipment | |
| CN208536939U (en) | A kind of intelligence valve control water meter | |
| CN203051917U (en) | Control device of valve three-interruption protection | |
| CN107503929B (en) | A kind of modularization Air Compressor Test platform | |
| CN107768192A (en) | Temperature protector | |
| CN209688238U (en) | A kind of liquefied petroleum gas valve safety detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |