CN206723553U - Electromagnetism bleeder - Google Patents
Electromagnetism bleeder Download PDFInfo
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- CN206723553U CN206723553U CN201720350598.6U CN201720350598U CN206723553U CN 206723553 U CN206723553 U CN 206723553U CN 201720350598 U CN201720350598 U CN 201720350598U CN 206723553 U CN206723553 U CN 206723553U
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- valve
- guide plate
- solenoid blowout
- main valve
- auxiliary
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Abstract
A kind of electromagnetism bleeder is the utility model is related to, belongs to boiler overpressure protection technical field.Including the safety valve being arranged on jet chimney, also include solenoid blowout valve, solenoid blowout valve control system and pressure transmitter, the solenoid blowout valve is connected to the front end of safety valve on jet chimney, the solenoid blowout valve electrically connects with solenoid blowout valve control system, described pressure transmitter one end is electrically connected with solenoid blowout valve control system, and the other end is connected on jet chimney by pipeline.The utility model ensures system safe operation under authorized pressure, while reduces the action frequency of fall lift type spring safety valve, reaches the purpose for extending safety valve service life.
Description
Technical field
It the utility model is related to boiler overpressure protection technical field, and in particular to a kind of electromagnetism bleeder.
Background technology
Existing boiler overpressure protection apparatus is mainly safety valve, when boiler exceedes its defined operating pressure, safety
Valve can open jump to discharge excess pressure protection boiler.Safety valve, which opens jump, can discharge a large amount of steam；The waste of the energy is not only caused,
And high speed steam flow easily washes out sealing surface, it is often more important that can be reported as interruption of service, number is hopped excessively when safety valve opens
When, safety valve service life can be reduced.
Utility model content
A kind of the defects of the purpose of this utility model is aiming at prior art, there is provided electromagnetism bleeder.
The technical solution adopted in the utility model is：Let out including the safety valve being arranged on jet chimney, in addition to electromagnetism
Valve, solenoid blowout valve control system and pressure transmitter are put, the solenoid blowout valve is connected on jet chimney before safety valve
End, the solenoid blowout valve electrically connect with solenoid blowout valve control system, described pressure transmitter one end and solenoid blowout valve control
System electrical connection processed, the other end are connected on jet chimney by pipeline.
Further preferred structure, the solenoid blowout valve include main valve and controllable main valve open, the auxiliary valve of closing.
Further preferred structure, the main valve include the first valve body, are arranged at the first air intake of the first body base,
The first steam drain of the first body top is arranged at, is arranged at middle spacer sleeve between the first air intake and the first steam drain, master
Flap；The main valve clack is placed in middle spacer sleeve out of, top inwardly opens up mounting groove, the main valve clack outer wall and mounting groove it
Between be provided with gap；Be provided with the first spring in the mounting groove, first spring one end contacts connection with main valve clack, the other end and
Trench bottom contact connection is installed；The first air chamber is provided with above the middle spacer sleeve, first air chamber is by middle spacer sleeve top, valve
Seat, main valve clack surround jointly；The second air chamber is opened up in the installation groove bottom.
Further preferred structure, the auxiliary valve include the second valve body, the second air intake being arranged in the second valve body, the
Two steam drains, the auxiliary flap being arranged between the second air intake and the second steam drain, the electromagnetism drive being arranged above auxiliary flap
Motivation structure, the second air intake of the auxiliary valve are connected by connecting tube with second air chamber.
Further preferred structure, the electromagnetic drive mechanism include being arranged at valve rod above auxiliary flap, are sheathed on valve
Second spring, movable sleeve on bar, the movable sleeve is through horizontal guide plate and is threadedly coupled with guide plate, the movable sleeve
Connection, second spring bottom spring base and the spacing connection of valve rod top bar are touched with second spring upper springs seated connection in bottom；
Be hinged in the middle part of pull bar, described pull bar one end is articulated with pillar the valve stem top, and the other end is connected by bolt and electromagnet
Connect.
Further preferred structure, the pillar are fixed on guide plate, and guide plate is fixed on vertical supporting rod, the branch
Support montant is fixed on the second valve body, and the vertical supporting rod includes two be arranged parallel to, and the movable sleeve, which passes through, to be oriented to
Plate is arranged.
Further preferred structure, described guide plate one end are fixed with vertical supporting rod, in the middle part of the guide plate with another
Support montant is fixed, and the guide plate other end is fixed with connecting rod, and the connecting rod other end is fixed with electromagnet bottom.
Further preferred structure, the pipeline that the pressure transmitter is connected with jet chimney are provided with stop valve, throttling
Valve and trap.
Further preferred structure, isolating valve, is provided between the solenoid blowout valve and jet chimney.
The utility model is used at more than 10MPa high-pressure boiler superheater outlets, work pressure of the pressure setting in superheater
Between power and safety valve lowest set pressure, when System steam pressure exceedes setting in debugging, running, system has letter
Electromagnetic control system number is fed back to, it is excellent that solenoid blowout valve increases electromagnetic force under the control of electromagnetic control system by leverage
First safety valve action, gives off some vapor, and when System steam pressure is recovered to service pressure, electromagnetic control system closes
Electromagnetic force is closed, valve is closed.Set-pressure and blow pressure are set, essence according to system requirements by high-precision control system
Degree is high.System safe operation under authorized pressure is ensured with this, while reduces the action frequency of fall lift type spring safety valve, is reached
Extend the purpose of safety valve service life.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is solenoid blowout valve structural representation；
Fig. 3 is auxiliary valve arrangement schematic diagram.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, is easy to be well understood
The utility model, but they do not form to the utility model and limited.
As shown in figure 1, the utility model includes being arranged at safety valve 8 on jet chimney 9, in addition to solenoid blowout valve 6,
Solenoid blowout valve control system 5 and pressure transmitter 4, the solenoid blowout valve 6 are connected on jet chimney 9 before safety valve 8
End, the solenoid blowout valve 6 electrically connect with solenoid blowout valve control system 5, described one end of pressure transmitter 4 and solenoid blowout valve
Control system 5 is electrically connected, and the other end is connected on jet chimney 9 by pipeline.The pressure transmitter 4 connects with jet chimney 9
The pipeline connect is provided with stop valve 1, choke valve 2 and trap 3.Between the solenoid blowout valve 6 and jet chimney 9 be provided with every
Disconnected valve 7.
As shown in Fig. 2 the solenoid blowout valve 6 includes the auxiliary valve that main valve 601 and controllable main valve 601 are opened, closed
602。
As shown in Fig. 2 the main valve 601 includes the first valve body 611, be arranged at the bottom of the first valve body 611 first enters vapour
Mouth 612, first steam drain 613 at the top of the first valve body 611 is arranged at, is arranged at the first air intake 612 and the first steam drain 613
Between middle spacer sleeve 614, main valve clack 615；The main valve clack 615 is placed in the installation that middle spacer sleeve 614 inwardly opens up from top
In groove, gap is provided between the outer wall of main valve clack 615 and mounting groove；It is provided with the first spring 616 in the mounting groove, described the
The one end of one spring 616 contacts connection with main valve clack 615, and the other end contacts connection with installation trench bottom；On the middle spacer sleeve 614
Side is surrounded jointly provided with the first air chamber B, the first air chamber B by the middle top of spacer sleeve 614, valve seat 617, main valve clack 615, its
In, the top of main valve clack 615 is with contacting sealing between valve seat 617 when, the top of main valve clack 615 seals with the interior side contacts of valve seat 617, with
The outside of valve seat 617 is discontiguous (with reference to shown in Fig. 2), can specifically set and pad between the top of main valve clack 615 and valve seat 617
Piece, sealing ring etc.；The second air chamber C is opened up in the installation groove bottom.
As shown in figure 3, the auxiliary valve 602 includes the second valve body 621, the second air intake being arranged in the second valve body 621
622nd, the second steam drain 623, be arranged between the second air intake 622 and the second steam drain 623 auxiliary flap 624, be arranged at
The electromagnetic drive mechanism of the auxiliary top of flap 624, the second air intake 622 of the auxiliary valve 602 pass through connecting tube and second gas
Room C is connected.
In above-mentioned technical proposal, the electromagnetic drive mechanism includes being arranged at the valve rod 625 of the auxiliary top of flap 624, is arranged
In the second spring 626 on valve rod 625, movable sleeve 627, guide plate 631 and and guide plate of the movable sleeve 627 through transverse direction
Connection, the second spring 626 are touched in 631 threaded connections, the bottom of movable sleeve 627 with the upper springs seated connection of second spring 626
Bottom spring base and the spacing connection of the top bar of valve rod 625；The top of valve rod 625 and the middle part of pull bar 628 are be hinged, the pull bar
628 one end are articulated with pillar 633, and the other end is connected by bolt with electromagnet 629.The pillar 633 is fixed on guide plate
On 631, guide plate 631 is fixed on vertical supporting rod 630, and the vertical supporting rod 630 is fixed on the second valve body 621, the branch
Support montant 630 includes two be arranged parallel to, and the movable sleeve 627 is arranged through guide plate 631.The guide plate 631
One end is fixed with vertical supporting rod 630, and the middle part of guide plate 631 is fixed with another vertical supporting rod 630, and the guide plate 631 is another
One end is fixed with connecting rod 632, and the other end of connecting rod 632 is fixed with the bottom of electromagnet 629.
In the utility model, solenoid blowout valve is the core component of electromagnetism pressure relief device, when System steam pressure surpasses
When crossing setting, solenoid blowout valve is opened before fall lift type spring safety valve action, gives off excess steam, ensures that system exists
Safe operation under authorized pressure, while the action frequency of fall lift type spring safety valve is reduced, extend the service life of safety valve, newly
Type electromagnetism bleeder discharge capacity is big, can meet boiler displacement requirements.
In the utility model, isolating valve, using stop valve form, is located to block class valve in system normal course of operation
In full open state, only break down in solenoid blowout valve, it is necessary to when overhaul or maintenance, be just closed.
The utility model ensures valve opening and closing pressure difference≤2% using high-precision control system and electromagnet.Control system
Pressure sensor receives pressure signal in system, is allowed to be converted into electric signal, electric-control system judges whether to reach according to electric signal
The signal value of setting, corresponding open and close valve signal is sent if reaching.After electromagnet receives corresponding open and close valve signal,
The keying of pilot valve is controlled at once.So valve opening and closing pressure difference is ensured using high-precision control system and electromagnet.
The utility model makes the structure type of newly-designed solenoid blowout valve main valve to meet performance requirement, and and can meets
Discharge capacity reaches requirement.Electromagnetic relief valve valve seat uses Laval-cavity nozzle, and emission factor is big, and exit flow velocity reaches velocity of sound, can
With rapid discharge medium pressure, the pressure of system is set to recover normal pressure at once.
Utility model works principle：
In boiler boost process, isolating valve, 7 is opened, and medium and caused pressure pass through middle spacer sleeve 614 by intake channel A
Honeycomb aperture enters B rooms, enters C rooms further through the gap between middle spacer sleeve 614 and main valve clack 615；When systems are functioning properly,
The pressure of C rooms is equal with B rooms, upward power P1 (power suffered by the cylindrical area of flap) suffered by 615 cylindrical stress surface of main valve clack,
Downward power P2 suffered by the stress surface of the annulus area between sealing surface cylindrical more than main valve clack 615, main valve 601 is in medium
Sealing is kept in the presence of pressure；This is sealed into back seal, and pressure is higher, and sealing property is better；Work as system overpressure, pressure inverting
Device 4 sends pressure signal and feeds back to magnet control system 5, and the electromagnetism of electromagnet 629 produces attraction, and it is automatically suitable to absorb lever
Close, auxiliary valve 602 is opened, and the steam at the main valve clack back side of main valve is discharged by auxiliary valve from gland steam exhauster, carries on the back the main valve clack of main valve
Pressure drastically declines, and because the discharge area of auxiliary valve is much larger than middle spacer sleeve and the interval area of main valve clack, and drops to C chamber pressures
Much smaller than B chamber pressures, the main valve clack of main valve is opened, and unnecessary medium is emptied by valve seat；When boiler pressure returns to normal operation
During pressure, pressure transmitter 4 sends pressure signal and feeds back to magnet control system 5, and electromagnet dead electricity departs from, and auxiliary valve is in spring
Closed in the presence of power, therefrom the gap between spacer sleeve and main valve clack enters the main valve clack back side to steam, and C chamber pressures go up rapidly
When extremely equal with B chamber pressures, the main valve clack of main valve is closed, valve seal.
Wherein, when control signal reaches electromagnet 629, electromagnet action, driven by the bolt being connected on main shaft
Pull bar 628 is lifted, and pull bar 628 rises with ovable valve stem 625, while compresses second spring 626, loses the auxiliary flap of valve rod top power
624 are opened in the presence of lower dielectric power, and C rooms gas is drained by auxiliary valve 602 in main valve 601, decline main valve C chamber pressures
Opened to the main valve clack 615 much smaller than B chamber pressures, main valve；When pressure is down to normal condition, control signal reaches electromagnet,
Electromagnet power-off is nonmagnetic, loses its reliss, and the resilience of the second spring 626 band ovable valve stem at this moment compressed holds out against auxiliary flap 624,
Close auxiliary valve 602, main valve 601 is also switched off, and completes the action of package unit.Wherein the adjusting screw on the top of valve rod 625, which rises, adjusts
The effect of whole spring force, electromagnetic valve can be made to be directed at release pressure value in action test and field adjustable.
In auto state, pressure transmitter 4 changes with system pressure, and 4~20mA telecommunications is exported in range ability
Number, pressure transmitter carries out signal conversion according to controlled valve release pressure and blow pressure, by control circuit to signal transacting
Afterwards, by operator, the function such as electric automatic control and display is realized.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (9)
1. a kind of electromagnetism bleeder, including the safety valve (8) being arranged on jet chimney (9), it is characterised in that also include electricity
Magnetic bleeder valve (6), solenoid blowout valve control system (5) and pressure transmitter (4), the solenoid blowout valve (6) are connected to steam
The front end of safety valve (8) on pipeline (9), the solenoid blowout valve (6) electrically connects with solenoid blowout valve control system (5), described
Pressure transmitter (4) one end electrically connects with solenoid blowout valve control system (5), and the other end is connected to jet chimney by pipeline
(9) on.
2. electromagnetism bleeder according to claim 1, it is characterised in that the solenoid blowout valve (6) includes main valve
(601) and controllable main valve (601) open, close auxiliary valve (602).
3. electromagnetism bleeder according to claim 2, it is characterised in that the main valve (601) includes the first valve body
(611) first air intake (612) of the first valve body (611) bottom, first be arranged at the top of the first valve body (611), are arranged at
Steam drain (613), middle spacer sleeve (614), the main valve clack being arranged between the first air intake (612) and the first steam drain (613)
(615)；The main valve clack (615) is placed in middle spacer sleeve (614) out of, top inwardly opens up mounting groove, the main valve clack
(615) gap is provided between outer wall and mounting groove；The first spring (616), first spring (616) are provided with the mounting groove
One end contacts connection with main valve clack (615), and the other end contacts connection with installation trench bottom；Set above the middle spacer sleeve (614)
There is the first air chamber (B), first air chamber (B) is enclosed jointly by middle spacer sleeve (614) top, valve seat (617), main valve clack (615)
Into；The second air chamber (C) is opened up in the installation groove bottom.
4. electromagnetism bleeder according to claim 3, it is characterised in that the auxiliary valve (602) includes the second valve body
(621) the second air intake (622) for, being arranged in the second valve body (621), the second steam drain (623), it is arranged at the second air intake
(622) the auxiliary flap (624) between the second steam drain (623), the electromagnetic drive machine being arranged above auxiliary flap (624)
Structure, the second air intake (622) of the auxiliary valve (602) are connected by connecting tube with second air chamber (C).
5. electromagnetism bleeder according to claim 4, it is characterised in that the electromagnetic drive mechanism is auxiliary including being arranged at
Valve rod (625) above flap (624), the second spring (626) being sheathed on valve rod (625), movable sleeve (627), the work
Dynamic set (627) be threadedly coupled through horizontal guide plate (631) and with guide plate (631), movable sleeve (627) bottom and the
Two springs (626) upper springs seated connection touches connection, and second spring (626) the bottom spring base limits with valve rod (625) top bar
Position connection；Be hinged in the middle part of pull bar (628) at the top of the valve rod (625), described pull bar (628) one end is articulated with pillar (633)
On, the other end is connected by bolt with electromagnet (629).
6. electromagnetism bleeder according to claim 5, it is characterised in that the pillar (633) is fixed on guide plate
(631) on, guide plate (631) is fixed on vertical supporting rod (630), and the vertical supporting rod (630) is fixed on the second valve body (621)
On, the vertical supporting rod (630) includes two be arranged parallel to.
7. electromagnetism bleeder according to claim 6, it is characterised in that described guide plate (631) one end is perpendicular with support
Bar (630) is fixed, fixed with another vertical supporting rod (630) in the middle part of the guide plate (631), guide plate (631) other end
Fixed with connecting rod (632), connecting rod (632) other end is fixed with electromagnet (629) bottom.
8. electromagnetism bleeder according to claim 1, it is characterised in that the pressure transmitter (4) and jet chimney
(9) pipeline of connection is provided with stop valve (1), choke valve (2) and trap (3).
9. electromagnetism bleeder according to claim 1, it is characterised in that the solenoid blowout valve (6) and jet chimney
(9) isolating valve, (7) is provided between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720350598.6U CN206723553U (en) | 2017-04-05 | 2017-04-05 | Electromagnetism bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720350598.6U CN206723553U (en) | 2017-04-05 | 2017-04-05 | Electromagnetism bleeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723553U true CN206723553U (en) | 2017-12-08 |
Family
ID=60503910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720350598.6U Active CN206723553U (en) | 2017-04-05 | 2017-04-05 | Electromagnetism bleeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114539A (en) * | 2018-08-27 | 2019-01-01 | 清华大学 | A kind of boiler system and its loss protecting method |
| CN113565631A (en) * | 2021-08-17 | 2021-10-29 | 中国航发贵阳发动机设计研究所 | Aeroengine bleed air automatic control device |
-
2017
- 2017-04-05 CN CN201720350598.6U patent/CN206723553U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114539A (en) * | 2018-08-27 | 2019-01-01 | 清华大学 | A kind of boiler system and its loss protecting method |
| CN109114539B (en) * | 2018-08-27 | 2023-11-07 | 清华大学 | Boiler system and power-failure protection method thereof |
| CN113565631A (en) * | 2021-08-17 | 2021-10-29 | 中国航发贵阳发动机设计研究所 | Aeroengine bleed air automatic control device |
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