CN207687003U - Double-shell pump seal failure monitoring and protecting structure - Google Patents
Double-shell pump seal failure monitoring and protecting structure Download PDFInfo
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- CN207687003U CN207687003U CN201820012343.3U CN201820012343U CN207687003U CN 207687003 U CN207687003 U CN 207687003U CN 201820012343 U CN201820012343 U CN 201820012343U CN 207687003 U CN207687003 U CN 207687003U
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- pressure
- outer housing
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- failure monitoring
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Abstract
The utility model discloses double-shell pump seal failure monitoring and protecting structures; including pump core and cylindric outer housing; sealing structure is equipped between pump core and outer housing; sealing structure is located between the pump core pumping liquid liquid high pressure area generated and liquid low area; and liquid high pressure area is separated out with liquid low; outer housing inner peripheral surface positioned at liquid low area side is equipped with pressure port; pressure port runs through outer housing, and pressure port is connected with pressure-detecting device on one end far from outer housing inner peripheral surface.When sealing structure fails, the liquid of higher-pressure region side can be flowed by sealing structure to low-pressure area, and partially liq can enter in pressure port, can directly be reflected by the pressure-detecting device for being arranged in outer hull outside.
Description
Technical field
The utility model is related to bivalve pump technical field more particularly to a kind of double-shell pump seal failure monitoring and protecting knots
Structure.
Background technology
Barrel insertpump has double Shell, the cylindrical shape of outer layer pump case, therefore can also claim barrel-type pump.It is built-in in outer layer pump case
The pump core being made of parts such as interior pump case and impellers, interior pump case can be middle open type or sectional type.Inside, outer housing
Between the higher-pressure region and low-pressure area of composition be equipped with sealing, prevent dielectric leakage and medium by when higher-pressure region crossfire to low-pressure area to pump
It damages.But since the sealing structure is in inside outer housing, sealing structure failure is to reflect intuitively and in time
Come, if that is, the sealing structure fails, user also can not discover and make correct counter-measure at the first time, this will be right
Barrel insertpump causes seriously to break ring.
In view of this, how timely and effectively to detect sealed between height area pressure inside double-shell pump whether fail just at
Those skilled in the art are badly in need of the technical issues of solving.
Utility model content
The technical problem to be solved by the present invention is to：How to propose that double-shell pump seal failure monitoring and protecting structure can
Timely and effectively to detect whether the sealing structure of liquid height pressure area fails.
Double-shell pump seal failure monitoring and protecting structure, includes pump core and cylindric outer housing, the pump core with it is described
Sealing structure is equipped between outer housing, the sealing structure is located at the liquid high pressure area and liquid that pump core pumping liquid generates
Between low-pressure area, and the liquid high pressure area is separated out with the liquid low, which is characterized in that be located at the liquid low
The outer housing inner peripheral surface of area side is equipped with pressure port, and the pressure port runs through the outer housing, and the pressure port is far from institute
It states and is connected with pressure-detecting device on one end of outer housing inner peripheral surface.
In this way, being opened up in inner peripheral surface of the detection structure by the outer housing between seal washer and liquid low area
The mode that pressure-detecting device is connect with pressure port is realized that the failure detection of sealing structure is protected by pressure port.Specifically working as should
When sealing structure fails, the liquid of higher-pressure region side can be flowed by the sealing structure of failure to low-pressure area, and partially liq can be into
Enter in pressure port, can directly be reflected by the pressure-detecting device for being arranged in outer hull outside.When sealing structure not
When failure, the pressure of pressure-detecting device reaction is the fluid pressure of low-pressure area side, when sealing structure fails, i.e. leakage production
When raw, the introducing of higher-pressure region side liquid can make the pressure rise that pressure-detecting device measures.User can pass through pressure in this way
The variation for the pressure of force checking device detected, quickly and effectively judges whether sealing device fails, and avoids sealing structure
It fails and causes seriously to break ring to pump.
Preferably, the sealing structure include the first sealed step of inwardly protruding formation on the inside of the outer housing, it is described
The second sealed step coordinated with first sealed step and gasket seal opened up on pump core periphery, first sealing station
Being compressed between rank and second sealed step has the seal washer to realize sealing.
In this way, the setting of sealed step can play certain locating effect in assembly, and sealed step is relative to adopting
With O-ring seal mode it is readily replaceable and safeguard.
Preferably, offering annular groove in the outer housing circumferential inner surface, the annular groove is located at the liquid
It body low-pressure area side and is connected to the pressure port.
In this way, the inner peripheral surface part of the outer housing equipped with pressure sky and pump core clearance fit, when amount of leakage is smaller, high pressure
The minor leakage in area will enter pressure port along the gap, be detected by pressure-detecting device.But when leakage is happened at circumferential direction
When upper separate pressure port side, leak liquid is more slow along the gap circumferential flow, i.e., the detection device cannot be timely
It detects to reveal.It is provided with annular groove to solve this case, the setting of annular groove improves the detection device reliability,
When sealing structure fails, the liquid of higher-pressure region side can be flowed along annular groove flows into pressure port, is filled by pressure detecting
Set detection.In this way when leakage is happened at the side far from pressure port, the liquid of higher-pressure region can quickly be flowed along annular groove
To pressure port, the failure of such sealing structure can be come out by pressure-detecting device fast reaction, avoid the failure of sealing structure to
Pump causes seriously to break ring.
Preferably, the pressure hole number is four, four pressure ports are along the outer housing circumferential direction uniform intervals point
Cloth.
In this way, the setting of four pressure ports improves the reliability of the detection device, circumferentially any one place in this way
Leakage can be detected quickly by pressure-detecting device nearest therewith, improve the sensitivity of the detection device.
Preferably, the pressure-detecting device is pressure sensor, the pressure sensor and DCS system communication link
It connects.
In this way, when in use in view of double-shell pump, user will not be in around double-shell pump constantly, in this way when pressure passes
Sensor, which detects, to be needed to timely feedback when pressure rise to user, pressure sensor and DCS (Distributed Control
System) i.e. dcs connects, and user can monitor the state of sealing structure in real time by DCS system.Especially exist
A large amount of production scenes for using barrel insertpump, DCS system can be completed at the same time the real-time monitoring to more barrel insertpumps.
Preferably, further including alarm, the alarm is connect with the pressure-detecting device.
In this way, when in use in view of double-shell pump, user will not be in around double-shell pump constantly, in this way when pressure passes
Sensor, which detects, to be needed to timely feedback to user when pressure rise, after pressure monitoring device detects pressure rise to certain value
Send out alarm and reminding user, the optional sound light crossing-signal of alarm.
Description of the drawings
Fig. 1 is the double-shell pump seal failure monitoring and protecting structure disclosed in the utility model embodiment one, wherein bivalve
Pump is sectional type barrel insertpump；
Fig. 2 is the double-shell pump seal failure monitoring and protecting structure disclosed in the utility model embodiment one, wherein bivalve
It pumps as scroll casing type barrel insertpump wherein.
Wherein, 1 it is outer housing, 101 pressure ports, 102 be annular groove, 2 pump cores, 3 be liquid low area, 4 is liquid height
Pressure area, 5 are pressure-detecting device.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
Referring to Fig. 1, Fig. 2, Fig. 1 are the double-shell pump seal failure monitoring and protecting disclosed in the utility model embodiment one
Structure, wherein barrel insertpump are sectional type barrel insertpump, and Fig. 2 is the double-shell pump seal failure disclosed in the utility model embodiment one
Monitoring and protecting structure, wherein barrel insertpump be scroll casing type barrel insertpump wherein.
Present embodiments provide double-shell pump seal failure monitoring and protecting structure, including pump core 2 and cylindric outer housing
1, sealing structure is equipped between the pump core 2 and the outer housing 1, the sealing structure is located at the pump core 2 and pumps liquid production
Between raw liquid high pressure area 4 and liquid low area 3, and the liquid high pressure area 4 and the liquid low area 3 are separated, position
1 inner peripheral surface of outer housing in 3 side of liquid low area is equipped with pressure port 101, and the pressure port 101 is through described outer
Shell 1, the pressure port 101 are connected with pressure-detecting device 5 on one end far from 1 inner peripheral surface of the outer housing.
In this way, being opened up in inner peripheral surface of the detection structure by the outer housing between seal washer and liquid low area
The mode that pressure-detecting device is connect with pressure port is realized that the failure detection of sealing structure is protected by pressure port.Specifically working as should
When sealing structure fails, the liquid of higher-pressure region side can be flowed by the sealing structure of failure to low-pressure area, and partially liq can be into
Enter in pressure port, can directly be reflected by the pressure-detecting device for being arranged in outer hull outside.When sealing structure not
When failure, the pressure of pressure-detecting device reaction is the fluid pressure of low-pressure area side, when sealing structure fails, i.e. leakage production
When raw, the introducing of higher-pressure region side liquid can make the pressure rise that pressure-detecting device measures.User can pass through pressure in this way
The variation for the pressure of force checking device detected, quickly and effectively judges whether sealing device fails, and avoids sealing structure
It fails and causes seriously to break ring to pump.
In the present embodiment, the sealing structure include first sealed step of the inwardly protruding formation in inside of the outer housing 1,
The second sealed step coordinated with first sealed step and gasket seal opened up on 2 periphery of the pump core, described first
Being compressed between sealed step and second sealed step has the seal washer to realize sealing.
In this way, the setting of sealed step can play certain locating effect in assembly, and sealed step is relative to adopting
With O-ring seal mode it is readily replaceable and safeguard.
In the present embodiment, annular groove 102 is offered in 1 circumferential inner surface of outer housing, annular groove 102 is located at liquid
It 4 side of low-pressure area and is connected to pressure port 101.
In this way, the inner peripheral surface part of the outer housing equipped with pressure sky and pump core clearance fit, when amount of leakage is smaller, high pressure
The minor leakage in area will enter pressure port along the gap, be detected by pressure-detecting device.But when leakage is happened at circumferential direction
When upper separate pressure port side, leak liquid is more slow along the gap circumferential flow, i.e., the detection device cannot be timely
It detects to reveal.It is provided with annular groove to solve this case, the setting of annular groove improves the detection device reliability,
When sealing structure fails, the liquid of higher-pressure region side can be flowed along annular groove flows into pressure port, is filled by pressure detecting
Set detection.In this way when leakage is happened at the side far from pressure port, the liquid of higher-pressure region can quickly be flowed along annular groove
To pressure port, the failure of such sealing structure can be come out by pressure-detecting device fast reaction, avoid the failure of sealing structure to
Pump causes seriously to break ring.
In the present embodiment, 101 quantity of pressure port is four, and four pressure ports 101 are along the circumferential uniform intervals point of outer housing 1
Cloth.
In this way, the setting of four pressure ports improves the reliability of the detection device, circumferentially any one place in this way
Leakage can be detected quickly by pressure-detecting device nearest therewith, improve the sensitivity of the detection device.
In the present embodiment, pressure-detecting device 5 is pressure sensor, and pressure sensor is communicated to connect with DCS system.
In this way, when in use in view of double-shell pump, user will not be in around double-shell pump constantly, in this way when pressure passes
Sensor, which detects, to be needed to timely feedback when pressure rise to user, pressure sensor and DCS (Distributed Control
System) i.e. dcs connects, and user can monitor the state of sealing structure in real time by DCS system.Especially exist
A large amount of production scenes for using barrel insertpump, DCS system can be completed at the same time the real-time monitoring to more barrel insertpumps.
In the present embodiment, further include alarm, alarm is connect with pressure-detecting device 5.
In this way, when in use in view of double-shell pump, user will not be in around double-shell pump constantly, in this way when pressure passes
Sensor, which detects, to be needed to timely feedback to user when pressure rise, after pressure monitoring device detects pressure rise to certain value
Send out alarm and reminding user, the optional sound light crossing-signal of alarm.
Claims (6)
- Include pump core and cylindric outer housing 1. double-shell pump seal failure monitoring and protecting structure, the pump core with it is described outer Sealing structure is equipped between shell, it is low with liquid that the sealing structure is located at the liquid high pressure area that pump core pumping liquid generates Between pressure area, and the liquid high pressure area is separated out with the liquid low, which is characterized in that be located at the liquid low area The outer housing inner peripheral surface of side is equipped with pressure port, and the pressure port runs through the outer housing, and the pressure port is far from described It is connected with pressure-detecting device on one end of outer housing inner peripheral surface.
- 2. double-shell pump seal failure monitoring and protecting structure as described in claim 1, which is characterized in that the sealing structure packet Include the first sealed step of inwardly protruding formation on the inside of the outer housing, opening up with first sealing station on the pump core periphery The second sealed step and gasket seal of rank cooperation, compress between first sealed step and second sealed step It states seal washer and realizes sealing.
- 3. double-shell pump seal failure monitoring and protecting structure as claimed in claim 2, which is characterized in that the outer housing is circumferential Annular groove is offered on inner surface, the annular groove is located at liquid low area side and is connected to the pressure port.
- 4. double-shell pump seal failure monitoring and protecting structure as described in claim 1, which is characterized in that the pressure hole number It is four, four pressure ports are circumferentially evenly spaced on along the outer housing.
- 5. double-shell pump seal failure monitoring and protecting structure as described in claim 1, which is characterized in that the pressure detecting dress It is set to pressure sensor, the pressure sensor is communicated to connect with DCS system.
- 6. double-shell pump seal failure monitoring and protecting structure as described in claim 1, which is characterized in that further include alarm, The alarm is connect with the pressure-detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012343.3U CN207687003U (en) | 2018-01-04 | 2018-01-04 | Double-shell pump seal failure monitoring and protecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012343.3U CN207687003U (en) | 2018-01-04 | 2018-01-04 | Double-shell pump seal failure monitoring and protecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687003U true CN207687003U (en) | 2018-08-03 |
Family
ID=62990244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820012343.3U Active CN207687003U (en) | 2018-01-04 | 2018-01-04 | Double-shell pump seal failure monitoring and protecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687003U (en) |
-
2018
- 2018-01-04 CN CN201820012343.3U patent/CN207687003U/en active Active
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