CN208294775U - Efficient non-leakage shields Pulp pump - Google Patents
Efficient non-leakage shields Pulp pump Download PDFInfo
- Publication number
- CN208294775U CN208294775U CN201820836537.5U CN201820836537U CN208294775U CN 208294775 U CN208294775 U CN 208294775U CN 201820836537 U CN201820836537 U CN 201820836537U CN 208294775 U CN208294775 U CN 208294775U
- Authority
- CN
- China
- Prior art keywords
- shielding cavity
- liquid level
- shielding
- efficient non
- pulp pump
- 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.)
- Active
Links
Landscapes
- Paper (AREA)
Abstract
The utility model provides a kind of efficient non-leakage shielding Pulp pump, for pumping slurry medium, including the pump housing, liquid level detection device and pressurizing pack, the pump housing has working chamber and is connected to working chamber and is located at the shielding cavity above working chamber, the test side of liquid level detection device is located in shielding cavity, to detect the liquid level for entering the slurry medium in shielding cavity by working chamber, pressurizing pack is connect with the pump housing, when the liquid level of the slurry medium in shielding cavity rises to the first preset height, pressurizing pack switches to working condition, the slurry medium in shielding cavity is fallen into working chamber after rise to increase the gas pressure in shielding cavity.The utility model solves the problems, such as that Pulp pump in the prior art can not solve sealing, leakage and rinse.
Description
Technical field
The present invention relates to machinery manufacturing technology fields, shield Pulp pump in particular to a kind of efficient non-leakage.
Background technique
Pulp pump be used for pump solid-liquid mixing slurry medium, be widely used in mine, power plant, metallurgy, dredging, chemical industry with
And the fields such as petroleum.Slurry medium leaks to the external world by the junction between transmission shaft and the pump housing in order to prevent, causes the energy unrestrained
The problems such as taking and polluting environment devise the Pulp pump with sealing performance.
A kind of Pulp pump with sealing performance in the prior art is provided with screw thread pumping and Double End machine at pump seal
Tool sealing plus forced water rinse or winged iron sealing (stop seal), to prevent slurry medium by the company between transmission shaft and the pump housing
The place of connecing leaks to the external world.Since there is certain fit clearance, slurry medium between the transmission shaft and pumping ring of Pulp pump
It is easily accessible in the fit clearance between pumping ring and transmission shaft, the damage of pumping ring or transmission shaft is caused, by the fit clearance
The external world is leaked to, leads to existing Pulp pump there are maintenance costs that high, service life is low, poor sealing performance, waste of energy etc. are asked
Topic.
It is rinsed using double mechanical seal plus forced water, sealing life 3-6 month is sealed using winged iron due to helical pump
It send the ring service life short, and flies to seal when iron sealing is termination of pumping, when pump work does not work and leakage failure.
Summary of the invention
The main purpose of the present invention is to provide a kind of efficient non-leakages to shield Pulp pump, to solve slag in the prior art
Stock pump can not solve the problems, such as sealing, leakage and rinse, to extend the Pulp pump operation and maintenance period.
To achieve the goals above, the present invention provides a kind of efficient non-leakages to shield Pulp pump, is situated between for pumping slurry
Matter, comprising: the pump housing, the pump housing have working chamber and be connected to working chamber and be located at the shielding cavity above working chamber；Level sensing dress
It sets, the test side of liquid level detection device is located in shielding cavity, to detect the liquid for entering the slurry medium in shielding cavity by working chamber
Position height；Pressurizing pack, pressurizing pack are connect with the pump housing, when the liquid level of the slurry medium in shielding cavity rises to first in advance
If when height, pressurizing pack switches to working condition, the slurry in shielding cavity is set to be situated between to increase the gas pressure in shielding cavity
Matter is fallen after rise into working chamber.
Further, pressurizing pack includes supply air line, and supply air line is arranged on the pump housing and is connected to shielding cavity, works as screen
When covering the liquid level of intracavitary slurry medium and reaching the first preset height, pressurizing pack is led to by supply air line into shielding cavity
Enter pressure regulation gas.
Further, pressurizing pack further includes first switch valve, and first switch valve is arranged on supply air line, to control confession
The on-off of air pipe, liquid level detection device are the liquid level induction meter connecting with the pump housing, and liquid level induction meter and first switch valve incude
Cooperation.
Further, pressurizing pack further includes construction of switch, and construction of switch is pivotally disposed at being located at for supply air line
One end in shielding cavity, liquid level detection device include: actuating arm, and the first end of actuating arm is connect with construction of switch, and actuating arm
Second end towards shielding cavity bottom extend；Float, the second end of actuating arm is arranged in float, and float is located at first and presets
At height.
Further, liquid level detection device is ball-cock assembly, and ball-cock assembly includes: valve body, and the position of supply air line is arranged in valve body
In one end in shielding cavity；Spool, spool are movably disposed in valve body；It cranks arm, cranks arm for driving valve core movement to control
The on-off of supply air line processed, the first end cranked arm are connect with spool, and the second end cranked arm extends towards the bottom of shielding cavity；It is floating
Ball, the second end cranked arm is arranged in floating ball, and floating ball is located at the first preset height.
Further, pressurizing pack further includes second switch valve, and second switch valve is arranged on supply air line and and liquid level
Detection device cooperation, to control the on-off of supply air line.
Further, efficient non-leakage shielding Pulp pump further includes pressure release component, and pressure release component is connect with the pump housing, works as shielding
When the liquid level of intracavitary slurry medium drops to the second preset height or less, effect of the pressure release component in liquid level detection device
Under switch to working condition, shielding cavity is in communication with the outside.
Further, liquid level detection device is the float element being arranged in shielding cavity, and pressure release component includes: relief tube
Road, pressure relief pipe is arranged on the pump housing, and the first end of pressure relief pipe is located in shielding cavity, and the second end of pressure relief pipe stretches out screen
Chamber is covered so that shielding cavity to be in communication with the outside；Switch element, switch element are arranged in float element, and switch element, which has to block, to be let out
The block-up position of the nozzle of the first end on pressure pipe road, and the disengaged position mutually separated with the nozzle of the first end of pressure relief pipe.
Further, the surface of the side away from float element of switch element is the first end for blocking pressure relief pipe
Nozzle closure end face.
Further, pressure relief pipe first end is extended to and is blocked at the position that is oppositely arranged of end face, block end face be to
The curved surface being recessed away from the side of pressure relief pipe, the end face of the nozzle of the first end of pressure relief pipe are compatible with end face is blocked
Curved surface.
Further, efficient non-leakage shielding Pulp pump further includes elastomeric pad and connection sleeve, wherein float element is logical
It crosses elastomeric pad and switch element is flexibly connected, the top for connecting sleeve is connect with the pump housing, connects bottom end and the elastic cushion of sleeve
Piece connection.
Further, efficient non-leakage shielding Pulp pump further includes the first flexible sheath and connection sleeve, wherein the first bullet
Property sheath be set in the peripheral side of float element, the top and the pump housing for connecting sleeve are connect, and connect bottom end and the first bullet of sleeve
Property sheath connection.
Further, liquid level detection device is the float element being arranged in shielding cavity, and pressure release component includes: relief tube
Road, pressure relief pipe is arranged on the pump housing, and the first end of pressure relief pipe is located in shielding cavity, and the second end of pressure relief pipe stretches out screen
Chamber is covered so that shielding cavity to be in communication with the outside；Third switch valve and opening and closing structure, third switch valve are arranged on pressure relief pipe, opening and closing
Structure and third switch valve cooperate to control the on-off of pressure relief pipe；Mounting frame, mounting frame are connect with the pump housing, and are located at screen
Cover it is intracavitary, mounting frame have installation cavity；Connecting rod, connecting rod are telescopically disposed in mounting frame, and the of connecting rod
One end is protruded into installation cavity, and the second end of connecting rod is stretched out by installation cavity and connect with float element；Opening and closing structure includes induction
The sensing element of cooperation and the first close switch, wherein first is arranged in installation cavity close to switch, and sensing element is arranged even
The first end of extension bar.
Further, efficient non-leakage shielding Pulp pump further includes the 4th switch valve, and the 4th switch valve is arranged in air supply pipe
On the road, efficient non-leakage shielding Pulp pump further includes that the second close switch of installation cavity bottom is arranged in and is arranged on installation cavity top
Close to switch, sensing element and second cooperates close to inductive switching to control the closing of the 4th switch valve the third in portion, and incudes
Element and third cooperate close to inductive switching to control the unlatching of the 4th switch valve.
Further, efficient non-leakage shielding Pulp pump further includes the second flexible sheath, and the second flexible sheath is located at floating
The peripheral side of dynamic element is simultaneously connect with mounting frame.
Further, pressurizing pack includes heating device, and heating device is arranged on the pump housing, the fire end position of heating device
Extend in shielding cavity, and to the bottom of shielding cavity, liquid level detection device is liquid level induction meter, liquid level induction meter and heating device
Induction cooperation, to control the heating start and stop state of heating device.
Further, heating device is multiple, and multiple heating devices are provided at circumferentially spaced along shielding cavity.
Further, the construction opening being connected with shielding cavity is offered at the top of the pump housing, efficient non-leakage shields slurry
Pump further include: transmission shaft, transmission shaft is protruded into after shielding cavity by construction opening to be passed through shielding cavity and stretch in working chamber；Pumping
Ring, pumping ring set are located on transmission shaft, and at the construction opening in shielding cavity, and the lower end surface for pumping ring is higher than first and presets
Highly.
Further, it pumps and offers installation through-hole in the side wall surface of ring, the one end of supply air line being located in shielding cavity
It is connected to installation through-hole, pressure regulation gas is led into the junction in pumping ring and transmission shaft.
Further, efficient non-leakage shielding Pulp pump further includes throat bushing, and throat bushing is set on transmission shaft, throat bushing
It is connect with the pump housing, and throat bushing is located at the junction of shielding cavity and working chamber.
It applies the technical scheme of the present invention, liquid level detection device and pressurizing pack is provided in shielding cavity, passes through setting
Liquid level detection device, to detect the liquid level for entering the slurry medium in shielding cavity by working chamber, when the slurry in shielding cavity
When the liquid level of medium rises to the first preset height, pressurizing pack is enabled to switch to working condition, in running order increasing
Pressure component can be such that the gas pressure in shielding cavity increases, so that the slurry medium in shielding cavity be made to fall after rise into working chamber.It is logical
Being used cooperatively for liquid level detection device and pressurizing pack is crossed, the liquid level of slurry medium in shielding cavity is adjusted in realization,
To avoid destroying efficient non-leakage shielding Pulp pump because the liquid level of slurry medium in shielding cavity is excessively high or cause slurry medium
It leaks to extraneous problem to occur, improves the service performance of efficient non-leakage shielding Pulp pump.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention one；
Fig. 2 shows the structural schematic diagrams of the efficient non-leakage of embodiment according to the present invention two shielding Pulp pump；
Fig. 3 shows the structure of the construction of switch of the shielding Pulp pump of the efficient non-leakage in Fig. 2 in the open state and shows
It is intended to；
Fig. 4 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention three；
Fig. 5 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention four；
Fig. 6 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention five；
Fig. 7 shows the enlarged diagram in Fig. 6 at A；
Fig. 8 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention six；
Fig. 9 shows the enlarged diagram in Fig. 8 at B；
Figure 10 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention seven；
Figure 11 shows the enlarged diagram in Figure 10 at C；
Figure 12 shows the structural schematic diagram of the efficient non-leakage shielding Pulp pump of embodiment according to the present invention eight.
Wherein, the above drawings include the following reference numerals:
10, the pump housing；11, working chamber；12, shielding cavity；13, construction opening；20, liquid level detection device；200, liquid level incudes
Meter；21, actuating arm；22, float；23, ball-cock assembly；231, valve body；232, it cranks arm；233, floating ball；24, float element；30, it is pressurized
Component；31, supply air line；32, first switch valve；33, construction of switch；34, second switch valve；35, heating device；351, add
Hot end；40, pressure release component；41, pressure relief pipe；42, switch element；421, end face is blocked；43, third switch valve；44, opening and closing knot
Structure；441, sensing element；442, the first close switch；45, mounting frame；451, installation cavity；46, connecting rod；50, elastic cushion
Piece；60, sleeve is connected；70, the first flexible sheath；80, the 4th switch valve；90, the second close switch；100, third is close opens
It closes；110, the second flexible sheath；120, transmission shaft；130, ring is pumped；131, installation through-hole；140, throat bushing.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Asking for sealing, leakage and flushing can not be solved in order to solve efficient non-leakage shielding Pulp pump in the prior art
Topic, to extend the Pulp pump operation and maintenance period, the present invention provides a kind of efficient non-leakages to shield Pulp pump.
As shown in Figures 1 to 12, the efficient non-leakage that this application provides a kind of for pumping slurry medium shields slurry
Pump, including the pump housing 10, liquid level detection device 20 and pressurizing pack 30, the pump housing 10 have working chamber 11 and are connected to simultaneously with working chamber 11
The test side of shielding cavity 12 above working chamber 11, liquid level detection device 20 is located in shielding cavity 12, to detect by working
Chamber 11 enters the liquid level of the slurry medium in shielding cavity 12, and pressurizing pack 30 is connect with the pump housing 10, when in shielding cavity 12
When the liquid level of slurry medium rises to the first preset height, pressurizing pack 30 switches to working condition, to increase shielding cavity
Gas pressure in 12 and fall the slurry medium in shielding cavity 12 into working chamber 11 after rise.
In this application, liquid level detection device 20 and pressurization are provided in the shielding cavity 12 of efficient non-leakage shielding Pulp pump
Component 30, by the way that liquid level detection device 20 is arranged, to detect the liquid level for entering the slurry medium in shielding cavity 12 by working chamber 11
Highly, when the liquid level of the slurry medium in shielding cavity 12 rises to the first preset height, pressurizing pack 30 is enabled to switch to
Working condition, in running order pressurizing pack 30 can be such that the gas pressure in shielding cavity 12 increases, to make shielding cavity
Slurry medium in 12 is fallen after rise into working chamber 11.By being used cooperatively for liquid level detection device 20 and pressurizing pack 30, realize
The liquid level of slurry medium in shielding cavity 12 is adjusted, to avoid the liquid level because of slurry medium in shielding cavity 12 excessively high
And destroy efficient non-leakage shielding Pulp pump or slurry dielectric leakage to extraneous problem is caused to occur, improve efficient non-leakage
Shield the service performance of Pulp pump.
The application lists eight specific embodiments, for illustrating how liquid level detection device 20 realizes level sensing
Function and pressurizing pack 30 how to realize make the gas pressure in shielding cavity 12 increase function.
Specifically, in embodiment one into embodiment seven, pressure regulation gas is passed through into shielding cavity 12 by supply air line 31,
To realize the technical effect for increasing the gas pressure in shielding cavity 12；And in embodiment eight, shielded by 35 Duis of heating device
The slurry medium covered in chamber 12 is heated, and liquid evaporation gas is made, to realize the gas pressure made in shielding cavity 12
The technical effect of increase.
In embodiment five into embodiment seven, it further includes pressure release component 40, pressure release component that efficient non-leakage, which shields Pulp pump,
40 connect with the pump housing 10, when the liquid level of the slurry medium in shielding cavity 12 drops to the second preset height or less, pressure release
Component 40 switches to working condition under the action of liquid level detection device 20, and shielding cavity 12 is in communication with the outside.In this way, logical
It crosses pressure release component 40 to be used cooperatively with pressurizing pack 30, controls the height that the slurry medium in shielding cavity 12 is fallen after rise, specifically,
It is used cooperatively by pressure release component 40 and pressurizing pack 30, keeps the gas pressure in shielding cavity 12 constant, to make shielding cavity 12
The liquid level of interior slurry medium is constant.Meanwhile pressure release component 40 is set, additionally it is possible to avoid gas pressure mistake in shielding cavity 12
Greatly, efficient non-leakage shielding Pulp pump damage is caused.
Eight specific embodiments are described in detail below:
Embodiment one
As shown in Figure 1, pressurizing pack 30 includes supply air line 31, supply air line 31 is arranged on the pump housing 10 and and shielding cavity
12 connections, when the liquid level of the slurry medium in shielding cavity 12 reaches the first preset height, pressurizing pack 30 passes through gas supply
Pipeline 31 is passed through pressure regulation gas into shielding cavity 12.
Optionally, pressure regulation gas is compressed air or inert gas.
Optionally, pressure regulation gas can choose nitrogen.
In alternative embodiment shown in fig. 1, pressurizing pack 30 further includes first switch valve 32, and first switch valve 32 is arranged
On supply air line 31, to control the on-off of supply air line 31, liquid level detection device 20 is the liquid level induction connecting with the pump housing 10
Meter 200, liquid level induction meter 200 and the induction of first switch valve 32 cooperate.In this way, when liquid level induction meter 200 detects shielding cavity 12
When the liquid level of interior slurry medium reaches the first preset height, first switch valve 32 is opened, and supply air line 31 is on
State, pressure regulation gas are entered in shielding cavity 12 by supply air line 31, increase the gas pressure in shielding cavity 12, to make
Slurry medium is fallen after rise under the action of gas pressure to working chamber 11 some or all of in shielding cavity 12, and then is realized to screen
The liquid level for covering the slurry medium in chamber 12 is adjusted.
Optionally, first switch valve 32 is solenoid valve, when liquid level induction meter 200 detects the slurry medium in shielding cavity 12
Liquid level when reaching the first preset height, sent to first switch valve 32 include opening imformation electric signal, open when first
It closes after valve 32 receives the electric signal including opening imformation and opens, keep supply air line 31 in the conductive state.
Embodiment two
As shown in Fig. 2, pressurizing pack 30 includes supply air line 31 and construction of switch 33, supply air line 31 is arranged in the pump housing 10
It above and with shielding cavity 12 is connected to, construction of switch 33 is pivotally disposed at the one end of supply air line 31 being located in shielding cavity 12.
Liquid level detection device 20 includes actuating arm 21 and float 22, and the first end of actuating arm 21 is connect with construction of switch 33, and actuating arm
21 second end extends towards the bottom of shielding cavity 12, and float 22 is arranged in the second end of actuating arm 21, and float 22 is located at the
At one preset height.
Fig. 2 shows alternative embodiment in, when to be located at first default for the liquid level of the slurry medium in shielding cavity 12
When below height, float 22 is naturally drooped under gravity at the first preset height；When the slurry in shielding cavity 12 is situated between
After the liquid level of matter rises to the first preset height, float 22 rises under the action of buoyancy, and float 22, which rises, drives driving
Arm 21 rotates, and the rotation of 21 driving switch structure 33 of actuating arm, postrotational state is as shown in figure 3, when construction of switch 33 is in Fig. 3
When the position shown, the pressure regulation gas in supply air line 31 enters in shielding cavity 12, realizes the gas pressure made in shielding cavity 12
The function of increase.
Optionally, float 22 is floating ball.
Embodiment three
As shown in figure 4, pressurizing pack 30 includes supply air line 31, supply air line 31 is arranged on the pump housing 10 and and shielding cavity
12 connections, when the liquid level of the slurry medium in shielding cavity 12 reaches the first preset height, pressurizing pack 30 passes through gas supply
Pipeline 31 is passed through pressure regulation gas into shielding cavity 12, and liquid level detection device 20 is ball-cock assembly 23, ball-cock assembly 23 include valve body 231,
It cranks arm 232 and floating ball 233, the one end of supply air line 31 being located in shielding cavity 12 is arranged in valve body 231, and spool is movably set
Set in valve body 231, crank arm 232 for driving valve core movement to control the on-off of supply air line 31, crank arm 232 first end with
Spool connection, crank arm 232 second end towards shielding cavity 12 bottom extend；Floating ball 233 be arranged in crank arm 232 second end,
And floating ball 233 is located at the first preset height.
In the alternative embodiment shown in Fig. 4, preset when the liquid level of the slurry medium in shielding cavity 12 is located at first
When below height, floating ball 233 is sagging at the first preset height under the effect of gravity, at this point, ball-cock assembly 23 is in close state；
After the liquid level of the slurry medium in shielding cavity 12 rises to the first preset height, floating ball 233 floats with liquid level, cranks arm
232 move with floating ball 233 and drive valve core movement, keep ball-cock assembly in the open state, and then be on supply air line 31
State, the pressure regulation gas in supply air line 31 enter in shielding cavity 12, realize the function for increasing the gas pressure in shielding cavity 12
Energy.
Example IV
As shown in figure 5, example IV improves on the basis of example 2, example IV and embodiment two
Difference is only that: pressurizing pack 30 further includes second switch valve 34, and second switch valve 34 is arranged on supply air line 31 and and liquid
Level detecting apparatus 20 cooperates, to control the on-off of supply air line 31.When the liquid level of the slurry medium in shielding cavity 12 is located at
When below the first preset height, float 22 is naturally drooped under gravity at the first preset height, second switch valve 34
It is in close state；After the liquid level of the slurry medium in shielding cavity 12 rises to the first preset height, float 22 is floating
Rise under the action of power, float 22, which rises, drives actuating arm 21 to rotate, the rotation of 21 driving switch structure 33 of actuating arm, construction of switch
Open signal is sent to second switch valve 34 after 33 rotations, second switch valve 34 switches to open state, in supply air line 31
Pressure regulation gas smoothly enters in shielding cavity 12, realizes the function of increasing the gas pressure in shielding cavity 12.
Similar with example IV in the embodiment not shown of the application one, pressurizing pack 30 further includes second switch valve 34,
Second switch valve 34 is arranged on supply air line 31 and cooperates with liquid level detection device 20, to control the on-off of supply air line 31.
But difference with example IV improves on the basis of example 2, and this embodiment not shown is in embodiment
It is improved on the basis of three, specifically, in this embodiment not shown, when the liquid level of the slurry medium in shielding cavity 12 is high
When degree is located at the first preset height or less, when ball-cock assembly 23 is in close state, second switch valve 34 is in close state；Work as screen
Cover the slurry medium in chamber 12 liquid level rise to the first preset height after, ball-cock assembly 23 is in the open state, and second opens
Pass valve 34 is in the open state, to keep supply air line 31 in the conductive state, the pressure regulation gas in supply air line 31 enters screen
It covers in chamber 12, realizes the function of increasing the gas pressure in shielding cavity 12.
Embodiment five
As shown in Figure 6 and Figure 7, pressurizing pack 30 include supply air line 31, supply air line 31 be arranged on the pump housing 10 and with
Shielding cavity 12 is connected to, and liquid level detection device 20 is the float element 24 being arranged in shielding cavity 12, and pressure release component 40 includes pressure release
Pipeline 41 and switch element 42, pressure relief pipe 41 is arranged on the pump housing 10, and the first end of pressure relief pipe 41 is located at shielding cavity 12
Interior, the second end of pressure relief pipe 41 stretches out shielding cavity 12 so that shielding cavity 12 to be in communication with the outside, and the setting of switch element 42 is being floated
On element 24, switch element 42 has the block-up position of the nozzle for the first end for blocking pressure relief pipe 41, and and pressure relief pipe
The disengaged position that the nozzle of 41 first end mutually separates.
In the present embodiment, it when the liquid level of the slurry medium in shielding cavity 12 is lower than the second preset height, floats
Element 24 is sagging at the second preset height under gravity, at this point, switch element 42 is in disengaged position, relief tube
Road 41 is in the conductive state and shielding cavity 12 is in communication with the outside；When the liquid level of the slurry medium in shielding cavity 12 rises to
When the second preset height, float element 24 starts to rise and rise with liquid level, and float element 24 drives switch element 42 to transport upwards
It is dynamic, when the liquid level of the slurry medium in shielding cavity 12 rises to the first preset height by the second preset height, Floating RMB
Part 24 drives switch element 42 by disconnected position to block-up position, blocks the nozzle of the first end of pressure relief pipe 41, and makes
Pressure relief pipe 41 is in sealed condition, and shielding cavity 12 is not in communication with the outside.
When specifically used, when the liquid level of the slurry medium in shielding cavity 12 is lower than the second preset height, Floating RMB
Part 24 is sagging at the second preset height under gravity, and pressurizing pack 30 is in off working state, at pressure release component 40
In working condition；When the liquid level of the slurry medium in shielding cavity 12 rises to the first preset height, pressurizing pack 30 is cut
Working condition is shifted to, and pressure release component 40 is in off working state, pressurizing pack 30 is by supply air line 31 into shielding cavity 12
It is passed through pressure regulation gas, the liquid level of the slurry medium in shielding cavity 12 declines under the influence of air pressure；When in shielding cavity 12
When the liquid level of slurry medium drops to the second preset height or less by the first preset height, pressure release component 40 switches to work
State, i.e. switch element 42 are in disengaged position, and shielding cavity 12 is in communication with the outside by pressure relief pipe 41, the pressure regulation in shielding cavity 12
Shielding cavity 12 is discharged by pressure relief pipe 41 in gas, to keep the gas pressure in shielding cavity 12 constant, and then controls shielding cavity
The liquid level of slurry medium in 12.
As shown in fig. 7, the surface of the side away from float element 24 of switch element 42 is for blocking pressure relief pipe 41
First end nozzle closure end face 421.
As shown in fig. 7,41 first end of pressure relief pipe is extended to and blocked at the position that end face 421 is oppositely arranged, end is blocked
Face 421 is the curved surface being recessed to the side away from pressure relief pipe 41, and the end face of the nozzle of the first end of pressure relief pipe 41 is and envelope
The stifled compatible curved surface in end face 421.In such manner, it is possible to improve float element 24 to the envelope of the nozzle of the first end of pressure relief pipe 41
Stifled effect.
As shown in Figure 6 and Figure 7, efficient non-leakage shielding Pulp pump further includes elastomeric pad 50 and connection sleeve 60, wherein
Float element 24 is flexibly connected by elastomeric pad 50 and switch element 42, and the top of connection sleeve 60 is connect with the pump housing 10, even
The bottom end of female connector cylinder 60 is connect with elastomeric pad 50.In this way, float element 24 is fixed on the second default height by connecting sleeve 60
At degree, when the liquid level of the slurry medium in shielding cavity 12 rises to the second preset height or more, float element 24 is upward
It floats, float element 24 pushes elastomeric pad 50 under the action of buoyancy, makes elastomeric pad 50 that flexible deformation, elastomeric pad occur
50 pull switch elements 42 are by disconnected position to block-up position.
Optionally, float element 24 is in bottled Floater Structure.
Optionally, switch element 42, float element 24 with the junction of switch element 42 and elastomeric pad 50 by
Latex material is made.
Optionally, switch element 42, float element 24 and elastomeric pad 50 are bonded.
Embodiment six
Embodiment six and the difference of embodiment five are, the elastomeric pad 50 in embodiment five is replaced with the first elasticity and is protected
Set 70, specifically, as shown in Figure 8 and Figure 9, the first flexible sheath 70 is set in the peripheral side of float element 24, connects sleeve 60
Top connect with the pump housing 10, connection sleeve 60 bottom end connect with the first flexible sheath 70.In this way, the first flexible sheath 70
It plays a protective role to float element 24.
Optionally, switch element 42, float element 24 are made of latex material with the junction of switch element 42, and
Switch element 42 and float element 24 are bonded.
Optionally, the first flexible sheath 70 is made of latex material.
Embodiment seven
As shown in Figure 10 and Figure 11, pressurizing pack 30 includes supply air line 31, and supply air line 31 is arranged on the pump housing 10 simultaneously
It is connected to shielding cavity 12, liquid level detection device 20 is the float element 24 being arranged in shielding cavity 12, and pressure release component 40 includes letting out
Pressure pipe road 41, third switch valve 43, opening and closing structure 44, mounting frame 45 and connecting rod 46, pressure relief pipe 41 are arranged in the pump housing 10
On, and the first end of pressure relief pipe 41 is located in shielding cavity 12, the second end of pressure relief pipe 41 stretches out shielding cavity 12 will shield
Chamber 12 is in communication with the outside, and third switch valve 43 is arranged on pressure relief pipe 41, opening and closing structure 44 and third switch valve 43 cooperate with
The on-off of pressure relief pipe 41 is controlled, mounting frame 45 is connect with the pump housing 10, and is located in shielding cavity 12, and mounting frame 45 has peace
It behave affectedly 451, connecting rod 46 is telescopically disposed in mounting frame 45, and the first end of connecting rod 46 protrudes into installation cavity 451,
The second end of connecting rod 46 is stretched out by installation cavity 451 and is connect with float element 24；Wherein, opening and closing structure 44 includes induction cooperation
Sensing element 441 and first close to switch 442, first close to the setting of switch 442 in installation cavity 451, sensing element 441
The first end of connecting rod 46 is set.In this way, when the liquid level of the slurry medium in shielding cavity 12 drops to the second default height
When spending, sensing element 441 cooperates with first close to switch 442 under float element driving, and first opens close to switch 442 to third
It closing valve 43 and sends open signal, third switch valve 43 is opened after receiving open signal, and keep pressure relief pipe 41 in the conductive state,
Shielding cavity 12 is in communication with the outside.
As shown in Figure 10 and Figure 11, efficient non-leakage shielding Pulp pump further includes the 4th switch valve 80, the 4th switch valve 80
It is arranged on supply air line 31, efficient non-leakage shielding Pulp pump further includes being arranged in the second of 451 bottom of installation cavity close to opening
It closes 90 and the close switch 100 of third at 451 top of installation cavity is set, sensing element 441 is matched with second close to the induction of switch 90
It closes to control the closing of the 4th switch valve 80, and sensing element 441 is opened with third close to the induction cooperation of switch 100 with controlling the 4th
Close the unlatching of valve 80.In this way, when the liquid level of the slurry medium in shielding cavity 12 is lower than third preset height, Floating RMB
Part 24 is sagging under gravity, and sensing element 441 and third is driven to cooperate close to switch 100, the second close switch 90
Shutdown signal is sent to the 4th switch valve 80, the 4th switch valve 80 is in close state after receiving shutdown signal；Work as shielding cavity
When the liquid level of slurry medium in 12 rises to the first preset height by third preset height, sensing element 441 is floating
It moves upwards under the action of element 24, and cooperates with third close to the induction of switch 100, third is switched close to switch 100 to the 4th
Valve 80 sends open signal, and the 4th switch valve 80, which receives, switches to open state after open signal, and supply air line 31 is to shielding
Pressure regulation gas is passed through in chamber 12, the liquid level of the slurry medium in shielding cavity 12 is begun to decline under the action of gas pressure,
When the liquid level of the slurry medium in shielding cavity 12 drops to the second preset height by the first preset height, sensing element
441 move downward under the action of float element 24, and with first close to switch 442 induction cooperate, first approach switch 442 to
Third switch valve 43 sends open signal, and third switch valve 43 is opened after receiving open signal, is in pressure relief pipe 41 and leads
Logical state, shielding cavity 12 is in communication with the outside, and then controls the liquid level of slurry medium in shielding cavity 12.
As shown in figure 11, efficient non-leakage shielding Pulp pump further includes the second flexible sheath 110, the second flexible sheath 110
It is located at the peripheral side of float element 24 and is connect with mounting frame 45.In this way, the second flexible sheath 110 of setting can be to floating
Element 24 plays a protective role.
Optionally, the second flexible sheath 110 is made of latex material.
Embodiment eight
As shown in figure 12, pressurizing pack 30 includes heating device 35, and heating device 35 is arranged on the pump housing 10, heating device
35 fire end 351 is located in shielding cavity 12, and extends to the bottom of shielding cavity 12, and liquid level detection device 20 is liquid level induction meter
200, liquid level induction meter 200 and the induction of heating device 35 cooperate, to control the heating start and stop state of heating device 35.In this way, working as
When liquid level induction meter 200 detects that the liquid level of the slurry medium in shielding cavity 12 rises to the first preset height, liquid level sense
Accrued 200 send open signal to heating device 35, heating device 35 receive it is in the open state after open signal, to shielding
Slurry medium in chamber 12 is heated, and the moisture in liquid is evaporated, to increase the gas pressure in shielding cavity 12.
In the embodiment not shown of the application one, heating device 35 be it is multiple, multiple heating devices 35 are along shielding cavity 12
It is provided at circumferentially spaced.Can according to actual needs, the quantity of flexible setting heating device 35 is high to control 12 liquid level of shielding cavity
Degree.Meanwhile after the damage of part of heating device 35, remaining heating device 35 still is able to work, to improve height
Imitate the service life of No leakage shielding Pulp pump.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 6, Fig. 8, Figure 10 and Figure 12, the top of the pump housing 10 is offered and shielding cavity 12
The construction opening 13 being connected, efficient non-leakage shielding Pulp pump further include transmission shaft 120 and pumping ring 130, transmission shaft 120 by
Construction opening 13 passes through shielding cavity 12 after protruding into shielding cavity 12 and stretches in working chamber 11；Pumping ring 130 is set in transmission shaft
On 120, and at the construction opening 13 being located in shielding cavity 12, the lower end surface of pumping ring 130 is higher than the first preset height.In this way,
By setting pressurizing pack 30, the liquid level of the slurry medium in shielding cavity 12 is made to be consistently lower than the lower end surface for pumping ring 130, thus
The slurry medium in shielding cavity 12 is avoided to enter in the fit clearance between pumping ring 130 and transmission shaft 120, to avoid pumping
Ring 130 or transmission shaft 120 are worn, and improve the service life of efficient non-leakage shielding Pulp pump.
As shown in Fig. 6, Fig. 8 and Figure 10, pumps and offer installation through-hole 131 in the side wall surface of ring 130, supply air line 31
One end in shielding cavity 12 is connected to installation through-hole 131, and pressure regulation gas is led in pumping ring 130 and transmission shaft 120
Junction.In this way, can also incited somebody to action even if there is slurry medium to enter in the fit clearance between pumping ring 130 and transmission shaft 120
Pressure regulation gas is passed through behind the junction of pumping ring 130 and transmission shaft 120, makes to pump the slurry between ring 130 and transmission shaft 120
Medium is fallen after rise under the action of pressure regulation gas in shielding cavity 12 or falling after rise to working chamber 11, and then slurry medium is avoided to pass through
Fit clearance between pumping ring 130 and transmission shaft 120 leaks to the external world, further improves efficient non-leakage shielding slurry
The sealing performance of pump.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 6, Fig. 8, Figure 10 and Figure 12, efficient non-leakage shielding Pulp pump further includes section
Stream set 140, throat bushing 140 is set on transmission shaft 120, and throat bushing 140 is connect with the pump housing 10, and throat bushing 140 is located at shielding
The junction of chamber 12 and working chamber 11.In this way, the junction of shielding cavity 12 Yu working chamber 11 is arranged in throat bushing 140, to prevent
Slurry medium in working chamber 11 enters in shielding cavity 12, further improves the leakproofness of efficient non-leakage shielding Pulp pump
Energy.
It should be noted that in this application, the first preset height is greater than or equal to the second preset height, the second default height
Degree is greater than or equal to third preset height.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (20)
1. a kind of efficient non-leakage shields Pulp pump, for pumping slurry medium characterized by comprising
The pump housing (10), the pump housing (10) have working chamber (11) and are connected to the working chamber (11) and are located at the working chamber
(11) shielding cavity (12) above；
Liquid level detection device (20), the test side of the liquid level detection device (20) are located in the shielding cavity (12), with detection
Enter the liquid level of the slurry medium in the shielding cavity (12) by the working chamber (11)；
Pressurizing pack (30), the pressurizing pack (30) connect with the pump housing (10), the slurry in the shielding cavity (12)
When the liquid level of medium rises to the first preset height, the pressurizing pack (30) switches to working condition, described in increasing
Gas pressure in shielding cavity (12) and fall the slurry medium in the shielding cavity (12) into the working chamber (11) after rise.
2. efficient non-leakage according to claim 1 shields Pulp pump, which is characterized in that the pressurizing pack (30) includes
Supply air line (31), the supply air line (31) are arranged on the pump housing (10) and are connected to the shielding cavity (12), work as institute
When stating the liquid level of the slurry medium in shielding cavity (12) and reaching first preset height, the pressurizing pack (30) passes through
The supply air line (31) is passed through pressure regulation gas into the shielding cavity (12).
3. efficient non-leakage according to claim 2 shields Pulp pump, which is characterized in that the pressurizing pack (30) is also wrapped
It includes first switch valve (32), the first switch valve (32) is arranged on the supply air line (31), to control the air supply pipe
The on-off on road (31), the liquid level detection device (20) are the liquid level induction meter (200) connecting with the pump housing (10), the liquid
Position induction meter (200) and the first switch valve (32) induction cooperate.
4. efficient non-leakage according to claim 2 shields Pulp pump, which is characterized in that the pressurizing pack (30) is also wrapped
Include construction of switch (33), the construction of switch (33) be pivotally disposed at the supply air line (31) be located at the shielding cavity
(12) one end in, the liquid level detection device (20) include:
The first end of actuating arm (21), the actuating arm (21) is connect with the construction of switch (33), and the actuating arm (21)
Second end towards the shielding cavity (12) bottom extend；
Float (22), the second end in the actuating arm (21) is arranged in the float (22), and the float (22) is positioned at described
At first preset height.
5. efficient non-leakage according to claim 2 shields Pulp pump, which is characterized in that the liquid level detection device (20)
For ball-cock assembly (23), the ball-cock assembly (23) includes:
Valve body (231), be located at the shielding cavity (12) in one of valve body (231) setting in the supply air line (31)
End；
Spool, the spool are movably disposed in the valve body (231)；
It cranks arm (232), described crank arm (232) are used to drive the valve core movement to control the on-off of the supply air line (31),
The first end for cranking arm (232) is connect with the spool, it is described crank arm (232) second end towards the shielding cavity (12)
Bottom extends；
Floating ball (233), the floating ball (233) setting is in the second end for cranking arm (232), and the floating ball (233) is located at institute
It states at the first preset height.
6. efficient non-leakage according to claim 4 or 5 shields Pulp pump, which is characterized in that the pressurizing pack (30)
It further include second switch valve (34), the second switch valve (34) is arranged on the supply air line (31) and examines with the liquid level
Device (20) cooperation is surveyed, to control the on-off of the supply air line (31).
7. efficient non-leakage according to claim 2 shields Pulp pump, which is characterized in that the efficient non-leakage shields slag
Stock pump further includes pressure release component (40), and the pressure release component (40) connect with the pump housing (10), when in the shielding cavity (12)
The liquid level of slurry medium when dropping to the second preset height or less, the pressure release component (40) fills in the level sensing
It sets and switches to working condition under the action of (20), the shielding cavity (12) is in communication with the outside.
8. efficient non-leakage according to claim 7 shields Pulp pump, which is characterized in that the liquid level detection device (20)
For the float element (24) being arranged in the shielding cavity (12), the pressure release component (40) includes:
Pressure relief pipe (41), the pressure relief pipe (41) are arranged on the pump housing (10), and the of the pressure relief pipe (41)
One end is located in the shielding cavity (12), and the second end of the pressure relief pipe (41) stretches out the shielding cavity (12) with by the screen
Chamber (12) is covered to be in communication with the outside；
Switch element (42), the switch element (42) are arranged on the float element (24), switch element (42) tool
There are the block-up position of the nozzle for the first end for blocking the pressure relief pipe (41), and the first end with the pressure relief pipe (41)
The disengaged position that mutually separates of nozzle.
9. efficient non-leakage according to claim 8 shields Pulp pump, which is characterized in that the back of the switch element (42)
The surface of side from the float element (24) is the closure for blocking the nozzle of the first end of the pressure relief pipe (41)
End face (421).
10. efficient non-leakage according to claim 9 shields Pulp pump, which is characterized in that the pressure relief pipe (41) the
One end extends at the position being oppositely arranged with closure end face (421), and the closure end face (421) is to let out to away from described
The curved surface of the side recess on pressure pipe road (41), the end face of the nozzle of the first end of the pressure relief pipe (41) are and the closure end
The compatible curved surface in face (421).
11. efficient non-leakage according to claim 8 shields Pulp pump, which is characterized in that the efficient non-leakage shielding
Pulp pump further includes elastomeric pad (50) and connection sleeve (60), wherein the float element (24) passes through the elastomeric pad
(50) it is flexibly connected with the switch element (42), the top of connection sleeve (60) is connect with the pump housing (10), described
The bottom end of connection sleeve (60) is connect with the elastomeric pad (50).
12. efficient non-leakage according to claim 8 shields Pulp pump, which is characterized in that the efficient non-leakage shielding
Pulp pump further includes the first flexible sheath (70) and connection sleeve (60), wherein first flexible sheath (70) is set in institute
The peripheral side of float element (24) is stated, the top of connection sleeve (60) is connect with the pump housing (10), the connection sleeve
(60) bottom end is connect with first flexible sheath (70).
13. efficient non-leakage according to claim 7 shields Pulp pump, which is characterized in that the liquid level detection device
It (20) is the float element (24) being arranged in the shielding cavity (12), the pressure release component (40) includes:
Pressure relief pipe (41), the pressure relief pipe (41) are arranged on the pump housing (10), and the of the pressure relief pipe (41)
One end is located in the shielding cavity (12), and the second end of the pressure relief pipe (41) stretches out the shielding cavity (12) with by the screen
Chamber (12) is covered to be in communication with the outside；
Third switch valve (43) and opening and closing structure (44), the third switch valve (43) are arranged on the pressure relief pipe (41),
The opening and closing structure (44) and the third switch valve (43) cooperate to control the on-off of the pressure relief pipe (41)；
Mounting frame (45), the mounting frame (45) connect with the pump housing (10), and are located in the shielding cavity (12), institute
Mounting frame (45) are stated with installation cavity (451)；
Connecting rod (46), the connecting rod (46) is telescopically disposed on the mounting frame (45), and the connecting rod
(46) first end protrudes into the installation cavity (451), and the second end of the connecting rod (46) is stretched out by the installation cavity (451)
And it is connect with the float element (24)；
The opening and closing structure (44) includes sensing element (441) and the first close switch (442) of induction cooperation, wherein described
First is interior in the installation cavity (451) close to switch (442) setting, and the sensing element (441) is arranged in the connecting rod
(46) first end.
14. efficient non-leakage according to claim 13 shields Pulp pump, which is characterized in that the efficient non-leakage shielding
Pulp pump further includes the 4th switch valve (80), and the 4th switch valve (80) is arranged on the supply air line (31), the height
Effect No leakage shielding Pulp pump further includes setting in the second close switch (90) of the installation cavity (451) bottom and is arranged in institute
State the close switch (100) of third at the top of installation cavity (451), the sensing element (441) and the described second close switch (90)
Induction cooperates to control the closing of the 4th switch valve (80), and the sensing element (441) and the close switch of the third
(100) induction cooperates to control the unlatching of the 4th switch valve (80).
15. efficient non-leakage according to claim 14 shields Pulp pump, which is characterized in that the efficient non-leakage shielding
Pulp pump further includes the second flexible sheath (110), and second flexible sheath (110) is located at the outer of the float element (24)
Side is simultaneously connect with the mounting frame (45).
16. efficient non-leakage according to claim 1 shields Pulp pump, which is characterized in that pressurizing pack (30) packet
It includes heating device (35), the heating device (35) is arranged on the pump housing (10), the fire end of the heating device (35)
(351) it is located in the shielding cavity (12), and extends to the bottom of the shielding cavity (12), the liquid level detection device (20) is
Liquid level induction meter (200), the liquid level induction meter (200) and the heating device (35) induction cooperate, to control the heating
The heating start and stop state of device (35).
17. efficient non-leakage according to claim 16 shields Pulp pump, which is characterized in that the heating device (35) is
It is multiple, multiple heating device (35) being provided at circumferentially spaced along the shielding cavity (12).
18. efficient non-leakage according to claim 2 shields Pulp pump, which is characterized in that the top of the pump housing (10)
The construction opening (13) being connected with the shielding cavity (12) is offered, the efficient non-leakage shields Pulp pump further include:
Transmission shaft (120), the transmission shaft (120) protrude into the shielding cavity (12) afterwards across described by the construction opening (13)
Shielding cavity (12) simultaneously stretches in the working chamber (11)；
It pumps ring (130), the pumping ring (130) is set on the transmission shaft (120), and is located in the shielding cavity (12)
The construction opening (13) at, it is described pumping ring (130) lower end surface be higher than first preset height.
19. efficient non-leakage according to claim 18 shields Pulp pump, which is characterized in that pumping ring (130)
It is offered in side wall surface installation through-hole (131), the one end of the supply air line (31) being located in the shielding cavity (12) and institute
Installation through-hole (131) connection is stated, the pressure regulation gas is led into the company in pumping ring (130) and the transmission shaft (120)
Meet place.
20. efficient non-leakage according to claim 18 shields Pulp pump, which is characterized in that the efficient non-leakage shielding
Pulp pump further includes throat bushing (140), and the throat bushing (140) is set on the transmission shaft (120), the throat bushing
(140) it is connect with the pump housing (10), and the throat bushing (140) is located at the shielding cavity (12) and the working chamber (11)
Junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836537.5U CN208294775U (en) | 2018-05-31 | 2018-05-31 | Efficient non-leakage shields Pulp pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836537.5U CN208294775U (en) | 2018-05-31 | 2018-05-31 | Efficient non-leakage shields Pulp pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294775U true CN208294775U (en) | 2018-12-28 |
Family
ID=64723265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820836537.5U Active CN208294775U (en) | 2018-05-31 | 2018-05-31 | Efficient non-leakage shields Pulp pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757482A (en) * | 2018-05-31 | 2018-11-06 | 沈阳耐蚀合金泵股份有限公司 | Efficient non-leakage shields Pulp pump |
-
2018
- 2018-05-31 CN CN201820836537.5U patent/CN208294775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757482A (en) * | 2018-05-31 | 2018-11-06 | 沈阳耐蚀合金泵股份有限公司 | Efficient non-leakage shields Pulp pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208294775U (en) | Efficient non-leakage shields Pulp pump | |
| CN108757482A (en) | Efficient non-leakage shields Pulp pump | |
| CN105221784B (en) | A kind of wear-less hard seal ball valve | |
| CN206279580U (en) | A kind of fire hydrant supercharging device | |
| CN108730575A (en) | A kind of small size two-way valve | |
| CN109826987A (en) | A kind of automatic delay function part and the gas self-closing valve with timing closing function | |
| CN113294136A (en) | Ball injector for oil field fracturing | |
| CN106885022A (en) | A kind of urgent cutting device of well head safe | |
| CN105972220B (en) | Two-way conisphere valve and telesecurity monitoring system | |
| CN113047904A (en) | Positive and negative pressure automatic water drainage device | |
| CN205779966U (en) | RH steel ladle jacking hydraulic system | |
| CN108050299B (en) | A kind of passive control method in low-pressure drainage system | |
| CN106065882B (en) | Pumping plant automatic emulsion proportioning and priming apparatus | |
| CN207261779U (en) | Bidirectional electromagnetic valve | |
| CN109538549A (en) | A kind of intelligent well cover with miniature explosion-proof hydraulic power system | |
| CN202833367U (en) | Mortar pump hydraulic system and mortar pump | |
| CN211083635U (en) | Intelligent safety high-pressure valve group | |
| CN206973015U (en) | Two-way direct-acting electromagnetic valve and fuel delivery line system | |
| CN208777947U (en) | Multipurpose vacantly throws grey cylinder, rubber plug type throws grey tool and firing pin type throws grey tool | |
| CN212867501U (en) | Multifunctional combined fracturing gas production wellhead device | |
| CN107326872A (en) | A kind of storage tank separation levee partition apparatus | |
| CN209469632U (en) | A kind of miniature explosion-proof hydraulic power system and the intelligent well cover with the system | |
| CN107701848A (en) | A kind of IN process measure and control device | |
| CN209385430U (en) | A kind of single-acting lifting cylinder | |
| CN209354718U (en) | Integrated multifunction air valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |