CN208546317U - A kind of labyrinth seal centrifugal pump - Google Patents
A kind of labyrinth seal centrifugal pump Download PDFInfo
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- CN208546317U CN208546317U CN201821212527.0U CN201821212527U CN208546317U CN 208546317 U CN208546317 U CN 208546317U CN 201821212527 U CN201821212527 U CN 201821212527U CN 208546317 U CN208546317 U CN 208546317U
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Abstract
The utility model relates to a kind of labyrinth seal centrifugal pumps, it is characterized in that, including motor and the pump housing, the pump housing is equipped with a bracket close to one end of the motor, the bottom end of a bracket is fixedly connected on the top of the pump housing, the top of the pump housing and the bottom end of the bracket be equipped with one up and down the pump housing top and the bracket bottom end and the channel A that is connected to the channel B, labyrinth seal assemblies are equipped in the channel A, the upper end of the pump housing is equipped with inlet, lower part is equipped with channel B in the pump housing, be sequentially connected a shaft on the output shaft coupling of the motor, the shaft sequentially passes through the bracket, the labyrinth seal assemblies, the channel A of the pump housing, and it passes through in the channel B to the pump cover, the bottom end of the pump cover is equipped with liquid outlet.When can reach good sealing effect, and be damaged if there is seal member, it is only necessary to replace seal member, maintenance cost is low.
Description
Technical field
The utility model relates to liquid transportation arts, and in particular to a kind of labyrinth seal centrifugal pump.
Background technique
The low-temperature centrifugal pump possessed currently on the market is under the working condition of continuous operation all using gas labyrinth
Main group of sealing, labyrinth seal becomes seal receptacle, sealing shroud, end cap.Working principle are as follows: the medium sealed is entering labyrinth
It expands and is depressured by multiple sealing teeth afterwards, then realize sealing by introducing a back pressure higher than pressure after decompression again, but
It is that this sealing effect is bad, is easy to appear leakage situation；And traditional labyrinth seal structure is sealing tooth processing on main shaft, this
Sealing structure is easy to happen sealing tooth damaged condition in use, once sealing tooth damage, it is necessary to changing main-spindle could be after
It is continuous to use, and the cost of main shaft is high, so that there is the problems such as service life is short, and maintenance cost is high, Er Qieli in entire centrifugal pump
Heart pump goes wrong and can directly result in the progress of production and slow down, and causes larger economic loss.
Utility model content
In order to solve the above-mentioned technical problem the utility model provides a kind of labyrinth seal centrifugal pump, can reach close well
When sealing effect, and being damaged if there is seal member, it is only necessary to replace seal member, maintenance cost is low.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of labyrinth seal centrifugal pump, including motor
And the pump housing, the pump housing is interior to be equipped with channel B, the bottom end of a bracket is fixedly connected on the top of the pump housing, the pump housing
The bottom end of top and the bracket be equipped with one up and down the pump housing top and the bracket bottom end and connect with the channel B
The top of logical channel A, the bracket are fixedly connected by bolt with the motor, and the output end of the motor is set straight down
It sets and is placed in the bracket, be equipped in the channel A for the labyrinth seal group with the sealed connection of the inner wall of the channel A
Part, the pump housing are equipped with the inlet being connected to the channel B, and the bottom end of the pump housing is bolted to connection pump cover,
Drain component is equipped within the pump cover, the output shaft of the motor passes through the top of output shaft coupling one shaft of transmission connection,
The bottom end of the shaft sequentially passes through downwards and stretches out the labyrinth seal assemblies, the channel A and the channel B and extends to
In the pump cover, the bottom end of the pump cover is equipped with the liquid outlet being connected to the channel B.
The beneficial effects of the utility model are: can be to liquid oxygen, nitrogen, argon and liquefied natural gas by this low-temperature centrifugal pump
Enough flows are provided and pressure is transported, can be continuously run within 24 hours, and continuous operation time is not less than 8000h, pump
In use, sealing effect is good, in the case where wearing if there is seal member, can replace labyrinth seal group in time
Part, can fast quick-recovery transport capacity, reduce maintenance cost, avoid the extension of production cycle, save production cost.
Based on the above technical solution, the utility model can also do following improvement.
Further, the labyrinth seal assemblies include seal receptacle, end cap and multiple sealing rings, are equipped with and pass through in the seal receptacle
The channel C of the seal receptacle upper and lower end face is worn, the bottom end of the shaft is passed down through and stretches out the channel C, the seal receptacle
Outer wall be equipped with flange C, the flange C is fixedly connected by bolt with the top of the pump housing, described in the end cap is set in
It is connect in shaft and by bolt with the top of the seal receptacle, the sealing ring is located in the channel C and in arranged side by side up and down
It is set in the shaft, gap is equipped between the lateral wall of the shaft and the internal ring wall of the sealing ring, in the shaft
It is arranged with spacer ring, butterfly spring is equipped between the spacer ring and the adjacent sealing ring.
Beneficial effect using above-mentioned further scheme is: by this seal assembly, sealing structure is simple and sealing effect
It is good, it is conducive to labyrinth seal assemblies and carries out quick-replaceable.
Further, the sealing ring is the component that copper alloy ring and polytetrafluoroethylene ring are arranged alternately, and is set in the spacer ring
There is the air flue for gas circulation, the seal receptacle side wall is equipped with multiple stomatas, and the stomata is connected to the air flue.
Beneficial effect using above-mentioned further scheme is: the difference of two kinds of sealing ring hole sizes, by being staggered installation of
Form labyrinth seal structure.Reduce abrasion by improving the difference of hardness of sealing ring and main shaft, so that the service life of centrifugal pump
Extend.After having the medium of certain pressure to enter fluid reservoir, medium can be entered by gap between main shaft and sealing ring by sealing
Step pressure reducing, expansion, gasification in the labyrinth of ring composition introduce an on-line pressure sealant gas from stomata at this time and enter labyrinth by spacer ring
Interior, which is always maintained at higher than pressure medium 0.1-0.2bar, transports down when blanket gas is depressurized step by step by labyrinth
When moving spacer ring, pressure depressurizes the pressure for moving upward to spacer ring higher than medium step by step herein, is discharged after the two mixing by stomata,
To play sealing function, while the medium to be conveyed is not polluted again.
Further, the channel B includes fluid reservoir and diversion chamber setting up and down, the top of the diversion chamber and the storage
The bottom end of liquid chamber is connected to, and the fluid reservoir is connected to the inlet, and the bottom end of the diversion chamber is connected to the liquid outlet, institute
It states and is equipped with a guide vane A and impeller A in diversion chamber, the guide vane A is fixedly connected by screw with the inner wall of the diversion chamber, described
The bottom end of diversion chamber is abutted with the top of the pump cover, and a bearing A is equipped in the middle part of the guide vane A, and the impeller A is located at described lead
The bottom end of the top of leaf A, the shaft is keyed through and out the bearing A, the impeller A and the shaft.
Beneficial effect using above-mentioned further scheme is: for carrying out water conservancy diversion to pumped (conveying) medium, forming level-one pressurization, mentions
High pump efficiency rate.
Further, the drain component includes guide vane B and impeller B, is equipped with drainage chamber in the pump cover, the drainage chamber
Top is connected to the bottom end of the diversion chamber, and the guide vane B and the impeller B are located in the drainage chamber, and the guide vane B passes through
Screw is fixedly connected with the inner wall of the pump cover, and the middle part of the guide vane B is equipped with bearing a B, the impeller B and is located at the guide vane
The bottom end of the top of B, the shaft is passed down through and stretches out the bearing B, and the impeller B and the shaft are keyed, described
Drainage chamber is connected to the liquid outlet.
Beneficial effect using above-mentioned further scheme is: forming two-stage pressurizing, improves the conveying capacity and efficiency of the pump housing.
Further, the inducer for conveying liquid is equipped in the channel B, the inducer and the shaft key connect
It connects.
Beneficial effect using above-mentioned further scheme is: improving the ability of pump anti-cavitation.
Further, heat-insulating washer is equipped between the bracket and the pump housing junction.
Beneficial effect using above-mentioned further scheme is: avoid the cooling capacity of cryogenic media in the pump housing from being transmitted to motor side,
Influence electrical machinery life.
Further, the inlet port is equipped with the flange A for connecting input duct.
Beneficial effect using above-mentioned further scheme is: facilitating connection input duct.
Further, the port of the liquid outlet is equipped with the flange B for connecting liquid outlet pipe.
Beneficial effect using above-mentioned further scheme is: facilitating connection liquid outlet pipe.
Detailed description of the invention
Fig. 1 is the utility model section view；
Fig. 2 is the utility model labyrinth seal assemblies cross-sectional view；
Fig. 3 is the utility model labyrinth seal assemblies stereoscopic schematic diagram；
Fig. 4 is the utility model seal ring structure schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1, motor, 2, channel C, 3, shaft, 5, inducer, 6, bracket, 7, end cap, 9, output shaft coupling, 10, labyrinth seal
Component, 11, the pump housing, 12, inlet, 13, channel A, 14, fluid reservoir, 15, channel B, 16, liquid outlet, 17, flange B, 18, insulation
Washer, 19, flange A, 20, impeller A, 21, diversion chamber, 22, bearing A, 23, drainage chamber, 24, impeller B, 25, bearing B, 26, guide vane
B, 27, seal receptacle, 28, flange C, 29, sealing ring, 30, spacer ring, 31, butterfly spring, 32, pump cover, 33, guide vane A, 34, air flue,
34-1, air flue A, 34-2, air flue B, 35, stomata, 35-1, stomata A, 35-2, stomata B, 35-3, stomata C, 36, copper alloy ring,
37, polytetrafluoroethylene ring.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of labyrinth seal centrifugal pump, including motor 1 and the pump housing 11, in the pump housing 11
Equipped with channel B15, for channel B15 for needing the medium conveyed to pass through, the top of the pump housing 11 is bolted to connection a bracket
6, the bottom end of the top of the pump housing 11 and the bracket 6 is equipped with 11 top of the pump housing and 6 bottom of the bracket up and down
Channel A13 that is holding and being connected to the channel B15, the bottom end of the pump housing 11 is bolted to connection pump cover 32, the top of bracket 6
End is fixedly connected by bolt with the side wall of motor 1, and bracket 6 is mainly used for for motor 1 and the pump housing 11 being attached, and bracket 6 is
Stainless steel alloy is made, and motor 1 is explosion-proof variable frequency motor 1, and the output end of motor 1 is arranged straight down and is placed in in bracket 6,
It is equipped with convenient for being connect with the pump housing 11, in the A13 of channel for the labyrinth seal assemblies 10 with the sealed connection of the inner wall of channel A13, electricity
By the top of output one shaft 3 of transmission connection of shaft coupling 9, the bottom end of shaft 3 sequentially passes through and stretches out downwards the output shaft of machine 1
Labyrinth seal assemblies 10, channel A13, and pass through channel B15 and extend in pump cover 32, channel A13 and channel B15 are circle, are led to
The diameter of road A13 and channel B15 are greater than the diameter of shaft 3, and shaft 3 is facilitated to rotate in it, and the bottom end of pump cover 32 is equipped with liquid
Mouth 16, liquid outlet 16 is connected to channel B15, and for the liquid of the extraction of the pump housing 11 to be discharged, the port of liquid outlet 16 is equipped with for connecting
The flange B17 for connecing liquid outlet pipe facilitates connection other component, and the upper end of the pump housing 11 is equipped with inlet 12, and 12 port of inlet is set
There is the flange A19 for connecting input duct, inlet 12 is connected to 11 inner cavity of the pump housing；
Labyrinth seal assemblies 10 include seal receptacle 27, end cap 7 and multiple sealing rings 29, are equipped in seal receptacle 27 through sealing
The channel C 2 of 27 upper and lower end faces of seat, the bottom end of shaft 3 are passed down through and stretch out channel C 2, and the outer wall of seal receptacle 27 is equipped with flange
C28, for labyrinth seal assemblies 10 to be fixed on the pump housing 11, seal receptacle 27 passes through the top of flange C28 and bolt and the pump housing 11
End is fixedly connected, and the bottom end of seal receptacle 27 is placed in the A13 of channel, and sealing ring 29 is located in channel C 2, and is in be arranged side by side up and down
In shaft 3, sealing ring 29 has 20-30, and end cap 7 is set in shaft 3 and is connect by bolt with the top of seal receptacle 27,
Sealing ring is compressed with end cap 7, so that closely connecting between multiple sealing rings, gap is not present, is conducive to sealing effect and realizes, sealing
Ring 29 avoids the medium in the pump housing 11 from flowing to outside the pump housing 11 along shaft 3, shaft 3 successively turns for being sealed to shaft 3
It is dynamic that gap is equipped between end cap 7, seal receptacle 27 and sealing ring 29, the lateral wall of shaft 3 and the internal ring wall of sealing ring 29,
Gap is 0.08mm, enables 3 normal rotation of shaft, and 2 spacer rings 30 are equipped between sealing ring 29, and spacer ring 30 is set in shaft 3
On, butterfly spring 31 is equipped between spacer ring 30 and adjacent sealing ring 29, sealing ring 29 is copper alloy ring 36 and polytetrafluoroethyl-ne
The component that alkene ring 37 is arranged alternately, the size of copper alloy ring 36 are greater than the size of polytetrafluoroethylene ring 37, multiple sealing rings 29 according to
Secondary close connection, so that sealing ring 29 is at labyrinth-like, sealing effect is good, and sealing ring 29 is divided into 3 sections by spacer ring 30, butterfly spring 31
The two sides of spacer ring 30 are set, for slowing down the compression between spacer ring 30 and sealing ring 29, reduce the damage of sealing ring 29, sealing
Ring 29 is abutted with the inner wall of seal receptacle 27, when needing replacing sealing ring 29, can individually be taken sealing ring 29 from seal receptacle 27
Out, quick-replaceable is carried out, the air flue 34 for gas circulation is equipped in spacer ring 30,27 side wall of seal receptacle is equipped with 3 stomatas 35,
Spacer ring 30 divides for upper isolating ring and lower isolating ring, and the air flue A34-1 of upper isolating ring is connected to stomata A35-1, stomata A35-1 be blanket gas into
The air flue B34-2 of stomata, lower isolating ring is connected to stomata B35-2, and stomata B35-2 is mixed gas tap, and stomata C35-3 is to be situated between
Matter pressure tracting pressuring hole, stomata C35-3 are connected to fluid reservoir 14, and stomata C35-3 is for detecting the pressure for needing sealing medium, air inlet
The pressure of mouth is higher than medium-tight pressure, and gaseous mixture exhaust port pressure is lower than medium-tight pressure；
Channel B15 includes fluid reservoir 14 and diversion chamber 21 setting up and down, the top and the bottom of fluid reservoir 14 of diversion chamber 21
End connection, fluid reservoir 14 are connected to inlet 12, and the bottom end of diversion chamber 21 is connected to liquid outlet 16, and one is equipped in diversion chamber 21 and is led
Leaf A33 and impeller A 20, impeller A 20 are that common centrifugal pump type impeller, guide vane A33 pass through screw and diversion chamber 21 on the market
Inner wall is fixedly connected, and is equipped with a bearing A22 in the middle part of guide vane A33, and impeller A 20 is located at the top of guide vane A33, the bottom end of shaft 3 according to
Secondary to be keyed through and out bearing A22, impeller A 20 and shaft 3, so that impeller A 20 is rotated coaxially with shaft 3, shaft 3 turns
The rotation of dynamic impeller A20, by the rotation of impeller A 20, so that medium obtains pressure energy, liquid is flowed out from diversion chamber 21；
The inducer 5 for conveying liquid is equipped in the B15 of channel, inducer 5 and shaft 3 are keyed；
Drain component is equipped between pump cover 32 and the pump housing 11, drain component includes guide vane B26 and impeller B24, in pump cover 32
Equipped with drainage chamber 23, the top of drainage chamber 23 is connected to the bottom end of diversion chamber 21, and guide vane B26 and impeller B24 are located at drainage chamber 23
Interior, impeller B24 is the common impeller of centrifugal pump, and guide vane B26 is fixedly connected by screw with the inner wall of pump cover 32, guide vane B26's
Middle part is equipped with a bearing B25, and impeller B24 is located at the top of guide vane B26, and the bottom end of shaft 3 is passed down through and stretches out bearing B25,
Impeller B24 and shaft 3 are keyed, so that impeller B24 is rotated coaxially with shaft 3, drainage chamber 23 is connected to liquid outlet 16, passes through leaf
The rotation of B24 is taken turns, so that medium obtains pressure energy, after liquid is flowed into drainage chamber 23 after flowing out from diversion chamber, with impeller B24
Lasting rotation, liquid are discharged the pump housing 11 after flowing to liquid outlet 16, form working cycles；
Heat-insulating washer 18 is equipped between 11 junction of bracket 6 and the pump housing, heat-insulating washer 18 is glass phenolic aldehyde washer, is mainly kept away
The cooling capacity for exempting from cryogenic media in the pump housing 11 is transmitted to motor 1, influences electrical machinery life.
In use, the shaft 3 of inducer 5, impeller A 20, guide vane A33 and impeller B24 will be connected with from the channel of the pump housing 11
B15 is passed through, and passes through fluid reservoir 14 and channel A13, and stretch out channel A13, and guide vane A33 is fixedly connected on water conservancy diversion by screw
On the inner wall of room 21, guide vane B26 is fixedly connected by screw with the inner wall of pump cover 32, pump cover 32 is bolted and is being pumped
The bottom end of body 11, and abutted with diversion chamber 21, guide vane B26 is set in shaft 3 by bearing B25, one by one by sealing ring 29
It is put into seal receptacle 27, is separated sealing ring 29 by spacer ring 30, the air flue 34 in spacer ring 30 is connected to corresponding stomata 35, it will
Seal receptacle 27 is put into the A13 of channel and is fixedly connected by screw with the top of the pump housing 11, and shaft 3 is passed through equipped with sealing ring 29
End cap 7 is set in shaft 3 and compresses to sealing ring 29 so that shaft 3 is connect with 29 gap of sealing ring by seal receptacle 27,
End cap 7 is fixedly connected by screw with the side wall of seal receptacle 27, and the top of the pump housing 11 is connected by the way that bolt and seal receptacle 27 are fixed
It connects, the top of the pump housing 11 is fixedly connected by screw with bracket 6, bracket 6 is bolted to connection the output in motor 1
On end cap 7, shaft 3 and the output shaft coupling 9 of motor 1 are sequentially connected, for driving shaft 3 to rotate；The pump housing 11 starts normally
When work, stomata C35-3 is connected to fluid reservoir 14, when needing the medium sealed by labyrinth because drag effect can depressurize simultaneously
Gasification, the pressure P1 of medium in the pump housing 11 is detected by stomata C35-3, needs to seal Jie of gasification by sealing gas
Matter, therefore the pressure P2 of sealing gas needs to be higher than P1, is just able to achieve sealing, but the pressure P2 of sealing gas cannot be excessively high,
When P2 is excessively high, pollution medium in the pump housing 11 can be entered by labyrinth seal, therefore by the pressure system of peripheral hardware by blanket gas
Than P1 high 0.1-0.2bar the case where, sealing gas pressure P2 after sealing ring 29 is gradually reduced for the pressure P2 control of body,
And the pressure P1 of medium reduces after also passing through sealing ring 29, and is discharged after gradually mixing by the air flue B34-2 in spacer ring 30
To atmosphere, sealing effect has been respectively formed to medium liquid and gaseous state by this labyrinth seal.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, all in the utility model
Spirit and principle within, any modification, equivalent replacement, improvement and so on should be included in the protection model of the utility model
Within enclosing.
Claims (9)
1. a kind of labyrinth seal centrifugal pump, which is characterized in that including motor (1) and the pump housing (11), be equipped in the pump housing (11)
Channel B (15), is fixedly connected with the bottom end of a bracket (6) on the top of the pump housing (11), the top of the pump housing (11) with
The bottom end of the bracket (6) be equipped with one up and down the pump housing (11) top and the bracket (6) bottom end and with it is described logical
The top of the channel A (13) of road B (15) connection, the bracket (6) are fixedly connected by bolt with the motor (1), the electricity
The output end of machine (1) is arranged straight down and is placed in the bracket (6), is equipped in the channel A (13) for leading to described
The labyrinth seal assemblies (10) that the inner wall of road A (13) is tightly connected, the pump housing (11) are equipped with and are connected to the channel B (15)
Inlet (12), the bottom end of the pump housing (11) is bolted to connection pump cover (32), is equipped within the pump cover (32)
Drain component, top of the output shaft of the motor (1) by output shaft coupling (9) transmission connection one shaft (3), the shaft
(3) bottom end sequentially passes through downwards and stretches out the labyrinth seal assemblies (10), the channel A (13) and the channel B
(15) it extends in the pump cover (32), the bottom end of the pump cover (32) is equipped with the liquid outlet being connected to the channel B (15)
(16)。
2. a kind of labyrinth seal centrifugal pump according to claim 1, which is characterized in that labyrinth seal assemblies (10) packet
Seal receptacle (27), end cap (7) and multiple sealing rings (29) are included, is equipped on the seal receptacle (27) in the seal receptacle (27)
The bottom end of the channel C (2) of lower end surface, the shaft (3) is passed down through and stretches out the channel C (2), the seal receptacle (27)
Outer wall is equipped with flange C (28), and the flange C (28) is fixedly connected by bolt with the top of the pump housing (11), the end cap
(7) it is set on the shaft (3) and is connect by bolt with the top of the seal receptacle (27), the sealing ring (29) is located at
It in the channel C (2) and is in be set in side by side on the shaft (3) up and down, the lateral wall and the sealing ring of the shaft (3)
(29) be equipped with gap between internal ring wall, be arranged with spacer ring (30) on the shaft (3), the spacer ring (30) with it is adjacent described
Butterfly spring (31) are equipped between sealing ring (29).
3. a kind of labyrinth seal centrifugal pump according to claim 2, which is characterized in that the sealing ring (29) is copper alloy
The component that ring (36) and polytetrafluoroethylene ring (37) are arranged alternately, the interior air flue being equipped with for gas circulation of the spacer ring (30)
(34), seal receptacle (27) side wall is equipped with multiple stomatas (35), and the stomata (35) is connected to the air flue (34).
4. a kind of labyrinth seal centrifugal pump according to claim 1, which is characterized in that the channel B (15) includes up and down
The top of the fluid reservoir (14) of setting and diversion chamber (21), the diversion chamber (21) is connected to the bottom end of the fluid reservoir (14),
The fluid reservoir (14) is connected to the inlet (12), and the bottom end of the diversion chamber (21) is connected to the liquid outlet (16),
A guide vane A (33) and impeller A (20) are equipped in the diversion chamber (21), the guide vane A (33) passes through screw and the diversion chamber
(21) inner wall is fixedly connected, and the bottom end of the diversion chamber (21) is abutted with the top of the pump cover (32), the guide vane A (33)
Middle part is equipped with a bearing A (22), and the impeller A (20) is located at the top of the guide vane A (33), and the bottom end of the shaft (3) is worn
The bearing A (22) is crossed and stretches out, the impeller A (20) and the shaft (3) are keyed.
5. a kind of labyrinth seal centrifugal pump according to claim 4, which is characterized in that the drain component includes guide vane B
(26) and impeller B (24), the pump cover (32) are interior equipped with drainage chamber (23), the top of the drainage chamber (23) and the diversion chamber
(21) bottom end connection, the guide vane B (26) and the impeller B (24) are located in the drainage chamber (23), the guide vane B (26)
It is fixedly connected by screw with the inner wall of the pump cover (32), the middle part of the guide vane B (26) is equipped with a bearing B (25), described
Impeller B (24) is located at the top of the guide vane B (26), and the bottom end of the shaft (3) is passed down through and stretches out the bearing B
(25), the impeller B (24) and the shaft (3) are keyed, and the drainage chamber (23) is connected to the liquid outlet (16).
6. a kind of labyrinth seal centrifugal pump according to claim 1-5, which is characterized in that the channel B (15)
The interior inducer (5) being equipped with for conveying liquid, the inducer (5) and the shaft (3) are keyed.
7. a kind of labyrinth seal centrifugal pump according to claim 1-5, which is characterized in that the bracket (6) with
Heat-insulating washer (18) are equipped between the pump housing (11) junction.
8. a kind of labyrinth seal centrifugal pump according to claim 1-5, which is characterized in that the inlet (12)
Port is equipped with the flange A (19) for connecting input duct.
9. a kind of labyrinth seal centrifugal pump according to claim 1-5, which is characterized in that the liquid outlet (16)
Port be equipped with flange B (17) for connecting liquid outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212527.0U CN208546317U (en) | 2018-07-27 | 2018-07-27 | A kind of labyrinth seal centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212527.0U CN208546317U (en) | 2018-07-27 | 2018-07-27 | A kind of labyrinth seal centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN208546317U true CN208546317U (en) | 2019-02-26 |
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ID=65425721
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821212527.0U Active CN208546317U (en) | 2018-07-27 | 2018-07-27 | A kind of labyrinth seal centrifugal pump |
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| CN (1) | CN208546317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869308A (en) * | 2018-07-27 | 2018-11-23 | 四川泰博流体科技有限公司 | A kind of labyrinth seal centrifugal pump |
-
2018
- 2018-07-27 CN CN201821212527.0U patent/CN208546317U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869308A (en) * | 2018-07-27 | 2018-11-23 | 四川泰博流体科技有限公司 | A kind of labyrinth seal centrifugal pump |
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