CN207609983U - Hydrophobic back pressure automatic regulation type drain valve - Google Patents
Hydrophobic back pressure automatic regulation type drain valve Download PDFInfo
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- CN207609983U CN207609983U CN201721784932.5U CN201721784932U CN207609983U CN 207609983 U CN207609983 U CN 207609983U CN 201721784932 U CN201721784932 U CN 201721784932U CN 207609983 U CN207609983 U CN 207609983U
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- hydrophobic
- back pressure
- pressure
- drain valve
- servo motor
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Abstract
The utility model is related to a kind of hydrophobic back pressure automatic regulation type drain valve, more particularly to a kind of automatic regulation type drain valves for being mounted in the closed circuit draining system of mesohigh jet chimney.Belong to valve field.Including：Hydrophobic valve body, pressure transmitter, servo motor, backpressure regulation module.The pressure transmitter is installed on the pipeline of drain valve rear end, for monitoring drain water piping pressure and returning to servo motor.The servo motor adjusts module according to the corresponding torque of electric signal output that pressure transmitter provides, control back pressure.The back pressure adjusts module according to the hydrophobic gap of direct torque, increases or decreases the amount of steam in condensed water, to promote or reduce hydrophobic pressure.The hydrophobic back pressure automatic regulation type drain valve of the utility model, is capable of regulating and controlling to going out aqueous condition for real-time, accurate and fast.
Description
Technical field
The utility model is related to a kind of hydrophobic back pressure automatic regulation type drain valves, more particularly to a kind of for being mounted on middle height
Press the automatic regulation type drain valve in the closed circuit draining system of jet chimney.Belong to valve field.
Background technology
Currently, for the steam trap in the closed circuit draining system of mesohigh steam pipe line, it is generally the case that its
Hydrophobic back pressure should be higher than that rear end drain water piping pressure, just can guarantee hydrophobic normal remittance drain water piping, will but be dredged when scene is practical
When waterpipe pressure changes and is more than hydrophobic back pressure, to ensure hydrophobic normal work, need to manually adjust drain valve back pressure
Adjusting knob control saves hydrophobic gap, so that a small amount of steam is entered waterline, promotes hydrophobic pressure.But manual regulative mode needs
It is completed after drain valve is dismantled from pipeline, dismounting workload is larger and influences equipment operation；Simultaneously because rear end drain water piping
Pressure changes in real time, and manual mode can not accomplish to adjust in real time, and there are serious hysteresis qualitys for adjustment effect.
Utility model content
Purpose of the utility model is to solve the prior arts there are problems that artificial adjustment causes adjustment effect to lag,
A kind of hydrophobic back pressure automatic regulation type drain valve is provided.
The purpose of this utility model is achieved through the following technical solutions.
Hydrophobic back pressure automatic regulation type drain valve, including：Trap body, servo motor, backpressure regulation module and pressure
Transmitter；
The trap body is installed on the closed circuit drain water piping of steam pipe line, the condensed water for being discharged in steam,
Closed circuit drain water piping pressure signal is converted into standard electric signal and returns to servo motor, the servo by the pressure transmitter
Motor is for adjusting back pressure adjustment module；The back pressure adjustment module is for adjusting hydrophobic gap.
Backpressure regulation inside modules are threaded, and are connect with valve chamber open end by screw thread；Back pressure is adjusted by rotation
The stroke of adjustment module controls the gap between valve chamber and open end, and then controls the ratio into condensed water of steam；
Preferably, the trap body is installed in the closed circuit drain water piping of steam pipe line, and being used for will be in steam pipe line
Condensed water is discharged, while preventing steam from thus revealing.
Preferably, the pressure transmitter is mounted on the drain water piping that drain valve rear end is connected, and installation site is being dredged
1 meter or more after water valve, drain water piping pressure signal can be converted to standard electric signal and sent to servo motor.
Preferably, the servo motor is built in drain valve valve inner, for receiving pressure transmitter electric signal, and
Convert electrical signals to rotation range, dragging back pressure adjustment module rotation.
Preferably, the back pressure adjustment module is built in hydrophobic valve body, for adjusting hydrophobic gap size, control row
Quantity of steam accounting in the condensed water gone out.
Advantageous effect
The hydrophobic back pressure automatic regulation type drain valve of the present invention, is capable of being adjusted to going out aqueous condition for real-time, accurate and fast
Control.
Description of the drawings
Fig. 1 is the schematic diagram that hydrophobic back pressure automatic regulation type drain valve is mounted on drain water piping；
Fig. 2 is hydrophobic back pressure automatic regulation type drain valve structural schematic diagram.
Wherein, 001-trap body, 002-servo motor, 103-backpressure regulation modules, 104-pressure transmitters.
Specific implementation mode
By reference to exemplary embodiment, the purpose of this utility model and function and for realizing these purposes and function
Method will be illustrated.However, being not limited to exemplary embodiment as disclosed below；Can by different form come pair
It is realized.The essence of specification is only to aid in the specific thin of various equivalent modifications Integrated Understanding the utility model
Section.
Embodiment 1
As Fig. 1 and Fig. 2 show the hydrophobic back pressure automatic regulation type drain valve mounting means of the utility model and built-in
Structural representation is mainly made of 4 parts：Trap body 001, servo motor 002, backpressure regulation module 103, pressure transmitter
104。
The trap body 101 is installed on hydrophobic valve pipeline, for the condensed water in jet chimney to be discharged, hinders simultaneously
Every steam in pipeline.
Pressure signal is converted to standard by the pressure transmitter 104 for monitoring drain valve rear end pipeline pressure
Electric signal returns to servo motor 102.
The servo motor 102 can receive the control signal of pressure transmitter transmission, and back pressure tune is adjusted according to signal condition
Save 103 rotation angle of module.
The backpressure regulation module 103 is connected with servo motor 102, is adjusted and is dredged according to the torque of servo motor output
Water space increases or decreases the steam accounting in condensed water by the variation in hydrophobic gap.
It by the device of the utility model on the closed circuit drain water piping of DN25, then starts to work, at this point, entering pipe
The saturated vapour pressure in road is 0.6MPa；The closed circuit drain water piping pressure in 104 collected rear end of pressure transmitter is 0.2MPa；
Workflow is as follows：1) when 104 collected rear end drain water piping pressure of pressure transmitter is 0.22, then should
Pressure value is converted into corresponding value of electrical signals, and send to servo motor 102；2) electricity that servo motor is sent according to pressure transmitter
Signal, output torque control back pressure adjustment 103 stroke of module just march forward 10%；3) backpressure regulation module 103 is according to servo electricity
The torque that machine 102 exports increases hydrophobic 1~2mm of gap, increases the quantity of steam 3~5% into drain water piping, promotes the low hydrophobic back of the body
It is depressed into 0.23MPa, ensures that hydrophobic back pressure is maintained at a little higher than condensing water conduit pressure.
4) it when 104 collected rear end drain water piping pressure of pressure transmitter is 0.16, then converts the pressure value to
Corresponding value of electrical signals, and give to servo motor 102；5) electric signal that servo motor is sent according to pressure transmitter, output turn
Square controls the reversely advance 10% of 103 stroke of back pressure adjustment module；6) backpressure regulation module 103 is exported according to servo motor 102
Torque reduces hydrophobic 1~2mm of gap, reduces the quantity of steam 3~5% into drain water piping, reduces hydrophobic back pressure to 0.18MPa,
Hydrophobic back pressure is set to be maintained at slightly less than condensing water conduit pressure.
The regulative mode to repeat the above steps, guarantee observe that water pipe persistently has water to reserve.
Explanation in conjunction with the utility model disclosed here and practice, the other embodiment of the utility model is for this field
Technical staff will be readily apparent and understand.Illustrate and embodiment be regarded only as being exemplary, the utility model it is real
Scope and spirit are defined in the claims.
Claims (3)
1. hydrophobic back pressure automatic regulation type drain valve, it is characterised in that：Including：Trap body, servo motor, backpressure regulation mould
Block and pressure transmitter；
The trap body is installed on the closed circuit drain water piping of steam pipe line, and the condensed water for being discharged in steam is described
Pressure transmitter by closed circuit drain water piping pressure signal be converted into standard electric signal return servo motor, the servo motor
Module is adjusted for adjusting back pressure；The back pressure adjustment module is for adjusting hydrophobic gap.
2. hydrophobic back pressure automatic regulation type drain valve as described in claim 1, it is characterised in that：In the backpressure regulation module
Portion is threaded, and is connect with valve chamber open end by screw thread；The stroke of backpressure regulation module is adjusted by rotation, controls valve chamber
Gap between open end, and then control the ratio into condensed water of steam.
3. hydrophobic back pressure automatic regulation type drain valve as described in claim 1, it is characterised in that：The pressure transmitter installation
On the drain water piping that drain valve rear end is connected, installation site is 1 meter or more after drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721784932.5U CN207609983U (en) | 2017-12-19 | 2017-12-19 | Hydrophobic back pressure automatic regulation type drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721784932.5U CN207609983U (en) | 2017-12-19 | 2017-12-19 | Hydrophobic back pressure automatic regulation type drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609983U true CN207609983U (en) | 2018-07-13 |
Family
ID=62799068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721784932.5U Active CN207609983U (en) | 2017-12-19 | 2017-12-19 | Hydrophobic back pressure automatic regulation type drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609983U (en) |
-
2017
- 2017-12-19 CN CN201721784932.5U patent/CN207609983U/en active Active
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