CN207715383U - A kind of high-pressure masked pump of chemical-process conveying - Google Patents
A kind of high-pressure masked pump of chemical-process conveying Download PDFInfo
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- CN207715383U CN207715383U CN201721854442.8U CN201721854442U CN207715383U CN 207715383 U CN207715383 U CN 207715383U CN 201721854442 U CN201721854442 U CN 201721854442U CN 207715383 U CN207715383 U CN 207715383U
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Abstract
The utility model discloses a kind of high-pressure masked pumps of chemical-process conveying, the motor forward flange to connect including the pump housing and successively with the pump housing, front-end bearing pedestal, casing, motor rear flange, rear bearing block and rear cover, it is provided with motor stator and rotor between the motor forward flange and motor rear flange, rotor shielding sleeve gap is formed between the motor stator and rotor, it is provided with armature spindle on the front-end bearing pedestal and rear bearing block, the impeller positioned at pump body and the accessory impeller in the rotor chamber of bearing block side are installed on the armature spindle, the rotor housing gap exit end is communicated by front-end bearing pedestal liquid pass hole with guide vane outlet, depending on rotor shielding sleeve gap entrance end pass through accessory impeller inner cavity, armature spindle centre bore, front-end bearing pedestal is crossed liquid bath and is communicated with guide vane outlet.The canned motor pump of the utility model has high pressure resistant, corrosion-resistant, No leakage, high reliability and safety, can meet demand of industrial production.
Description
Technical field
The utility model is related to shield pump technical field, specially a kind of high-pressure masked pump of chemical-process conveying.
Background technology
It is natural gas extraction, purification, transportation integration engineering, the gas material taken from gas field that engineering is sent in western gas east
Gas contains a large amount of hydrogen sulfide (15-18%) and chlorine ion concentration is in 7000-10000ppm, according to NACE standards, austenite stainless
Steel material requires chlorine ion concentration as follows：When 60 DEG C of temperature ＜, hydrogen sulfide sectional pressure ＜ 350kPa, chlorine ion concentration must not exceed
50ppm, so collecting raw natural gas chlorine ion concentration considerably beyond design and standard requirement, there are chlorion inductions
The risk of hydrogen sulfide splitting.Unstripped gas pipelined pressure medium is high (8.4MPa), hydrogen sulfide content height (15-
18%), once the hydrogen sulfide splitting of chlorion induction occurs, unstripped gas leakage rate is big, speed is fast, involves range
Extensively, there are personnel's poisoning, fire explosion, environmental pollution equivalent risks.For this purpose, before natural gas to be gone to purification plant's purification, need pair
All natural gas carries out washing dechlorination.
But circulating pump is needed to convey flushing water in being rinsed with water natural gas dechlorination process, this operating mode there are following characteristics：
(1) the absolute No leakage of circulating pump is required；
(2) system pressure is high, reaches 8.4MPa；
(3) a large amount of hydrogen sulfide gas of water dissolution is rinsed, sensitive to temperature change, temperature raising will be precipitated；
(4) flushing water takes away chlorion in natural gas, itself chlorine ion concentration increases, to pumping the requirement of liquid part material
It is high；
(5) circulating pump is the core drive equipment for washing dechlorination apparatus, it is desirable that high reliability and safety；
Due to above 5 features, it is known that common centrifugal pump for chemical procedure cannot be satisfied use, it is therefore desirable to the operating mode
Design a kind of canned motor pump.
Utility model content
For deficiency in the prior art, the utility model provides a kind of high-pressure masked pump of chemical-process conveying,
With high pressure resistant, corrosion-resistant, No leakage, high reliability and safety, demand of industrial production can be met.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
A kind of high-pressure masked pump of chemical-process conveying, including the pump housing and connect successively with the pump housing motor forward flange,
Front-end bearing pedestal, casing, motor rear flange, rear bearing block and rear cover are provided between the motor forward flange and motor rear flange
Motor stator and rotor form rotor shielding sleeve gap, the front-end bearing pedestal between the motor stator and rotor
With armature spindle is provided on rear bearing block, be installed on the armature spindle positioned at pump body impeller and be located at bearing block
Accessory impeller in the rotor chamber of side, rotor shielding sleeve gap exit end are communicated by front-end bearing pedestal liquid pass hole with guide vane outlet,
And rotor shielding sleeve gap entrance end crosses liquid bath by accessory impeller inner cavity, armature spindle centre bore, front-end bearing pedestal and exports phase with guide vane
It is logical.
Further, it is provided with main junction box on the left of the casing, secondary wiring is fixedly connected with above the main junction box
Box.
Further, the main junction box is attached with casing using pipe pipe butt welding mode.
Further, further include the monitoring and protecting device being monitored to high-pressure masked pump with protection.
Further, the monitoring and protecting device includes microcontroller chip, cooling and lubricating circulation fluid temperature monitoring, bearing axis
To wear monitor, bearing gauge wear monitor, housing leak detector, winding temperature monitor, display and alarm
Device, the cooling and lubricating circulation fluid temperature monitoring, bearing axial direction wear monitor, bearing gauge wear monitor, housing
The parameter measured is sent to microcontroller chip by leak detector, winding temperature monitor, microcontroller chip analyzed after by the ginseng
Number is compared with the threshold value of setting, and when being more than the threshold value of setting, microcontroller chip control alarm is alarmed, meanwhile, micro-control
Parameter is sent on display and shows by chip.
The utility model compared with prior art, has following advantageous effect：
(1) canned motor pump of the utility model meets water and rinses in natural gas dechlorination process, to the absolute No leakage of circulating pump,
The requirement of high pressure resistant, corrosion-resistant, high reliability and safety, and a kind of monitoring guarantor with a variety of monitoring with defencive function is provided
Protection unit improves the high reliability of canned motor pump, and by the way that motor forward flange, motor rear flange and casing are used band root face J
Type welds, and main junction box uses pipe pipe butt welding mode with casing so that canned motor pump has secondary bearing structure, is held due to secondary
Pressure design, remains able to high-pressure medium being sealed in pump and motor, is not leaked in the external environment outside pump, to improve
Canned motor pump is high pressure resistant, anti-leak function；
(2) high-pressure masked pump of the utility model, when work cooling and lubricating circulation fluid from armature spindle centre bore to accessory impeller,
After accessory impeller is pressurized, by rotor shielding sleeve gap, guide vane outlet is returned to；It is negative by the design and motor heat of circulation loop
The optimization design of lotus, cooling and lubricating circulation fluid while cooling motor and lubrication bearing, avoid the raising due to temperature and
Hydrogen sulfide gas is precipitated；
(3) high-pressure masked pump of the utility model, for the high reliability of guarantee, ingenious setting cooling and lubricating circulation fluid temperature
Monitor, bearing axial direction wear monitor, bearing gauge wear monitor, housing leak detector, winding temperature monitor
Comprehensive monitoring and protection system are constituted, canned motor pump reliability and security performance are improved.
Description of the drawings
The following drawings only does schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the electrical schematic diagram of monitoring and protecting device；
In figure：1, the pump housing；2, motor forward flange；3, front-end bearing pedestal；4, casing；5, motor rear flange；6, rear bearing block；7、
Rear cover；8, motor stator；9, rotor；10, rotor shielding sleeve gap；11, armature spindle；12, impeller；13, accessory impeller；14、
Guide vane；15, main junction box；16, microcontroller chip；17, cooling and lubricating circulation fluid temperature monitoring；18, bearing axial direction wear monitoring
Device；19, bearing gauge wear monitor；20, housing leak detector；21, winding temperature monitor；22, display；23、
Alarm.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As depicted in figs. 1 and 2, a kind of high-pressure masked pump of chemical-process conveying, including the pump housing 1 and successively with the pump housing 1
Motor forward flange 2, front-end bearing pedestal 3, casing 4, motor rear flange 5, rear bearing block 6 and the rear cover 7 to connect, motor forward flange 2 with
It is provided with motor stator 8 and rotor 9 between motor rear flange 5, rotor plater is formed between motor stator 8 and rotor 9
Set gap 10 is covered, armature spindle 11 is provided on front-end bearing pedestal 3 and rear bearing block 6, is installed on armature spindle 11 positioned at the pump housing 1
Internal impeller 12 and the accessory impeller 13 in the rotor chamber of bearing block side, 10 outlet end of rotor shielding sleeve gap passes through fore bearing
3 liquid pass holes of seat are communicated with the outlet of guide vane 14, and 10 arrival end of rotor shielding sleeve gap passes through 13 inner cavity of accessory impeller, rotor axis center
Hole, front-end bearing pedestal 3 are crossed liquid bath and are communicated with the outlet of guide vane 14, in this manner it is possible to coolant liquid circulation loop is formed in canned motor pump,
It while ensureing cooling motor and lubrication bearing, and can avoid that hydrogen sulfide gas is precipitated due to the raising of temperature.Passing through will
Cooling and lubricating circulation fluid is from armature spindle centre bore to accessory impeller, after accessory impeller is pressurized, by rotor shielding sleeve gap, returns to
Guide vane exports, to form coolant liquid circulation loop.
Wherein, the left side of casing 4 is provided with main junction box 15, main junction box 15 and casing 4 using pipe pipe butt welding mode into
Row connection uses pipe pipe butt welding mode by main junction box and casing, and motor forward flange, motor rear flange and casing is made to adopt
It is welded with band root face J-type, allowing for canned motor pump in this way has secondary bearing structure, since secondary pressure-bearing designs, remains able to
High-pressure medium is sealed in pump and motor, is not leaked in the external environment outside pump, canned motor pump is high pressure resistant, prevents letting out to improve
Leak function.
Wherein, high-pressure masked pump further includes the monitoring and protecting device being monitored with protection, and monitoring and protecting device includes micro-
Control chip 16, cooling and lubricating circulation fluid temperature monitoring 17, bearing axial direction wear monitor 18, bearing gauge wear monitor
19, housing leak detector 20, winding temperature monitor 21, display 22 and alarm 23, the cooling and lubricating circulation fluid
Temperature monitoring 17, bearing axial direction wear monitor 18, bearing gauge wear monitor 19, housing leak detector 20, around
The parameter measured is sent to microcontroller chip 16 by set temperature monitoring device 21, microcontroller chip 16 analyzed after by the parameter and setting
Threshold value be compared, be more than setting threshold value when, microcontroller chip 16 control alarm 23 alarm, meanwhile, microcontroller chip
Parameter is sent on display 22 and shows by 16, by burying winding temperature monitor 21 in the stator windings, to monitor
Winding temperature；By the bearing gauge wear monitor 19 being arranged in main junction box 15, to monitor bearing gauge wear situation；
Bearing axial direction wear monitor 18 is mounted at rear cover 7, bearing end abrasion condition is monitored.It is arranged one on secondary shell
A pressure port, installs housing leak detector 20, monitors the internal pressure situation of change in secondary housing chamber in real time, once screen
Set leakage is covered, housing leak detector 20 will detect system pressure, play the role of the quality for monitoring housing.Rear
But the temperature that greasing cycle liquid temperature monitoring 17 monitors circulation fluid in real time is installed at lid, grasps the flowing of internal cooling-lubricant
Situation improves canned motor pump reliability and security performance.
To sum up, the canned motor pump of the utility model meets water and rinses in natural gas dechlorination process, is let out to the absolute nothing of circulating pump
Leakage, the requirement of high pressure resistant, corrosion-resistant, high reliability and safety, and a kind of prison with a variety of monitoring and defencive function is provided
Protective device being controlled, improving the high reliability of canned motor pump, and by using motor forward flange, motor rear flange and casing with blunt
Side J-type welding, main junction box use pipe pipe butt welding mode with casing so that canned motor pump has secondary bearing structure, due to two
Secondary pressure-bearing design, remains able to high-pressure medium being sealed in pump and motor, is not leaked in the external environment outside pump, to
Improve that canned motor pump is high pressure resistant, anti-leak function；
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (5)
1. a kind of high-pressure masked pump of chemical-process conveying, including method before the pump housing (1) and the motor that connects successively with the pump housing (1)
Blue (2), front-end bearing pedestal (3), casing (4), motor rear flange (5), rear bearing block (6) and rear cover (7), the motor forward flange
(2) motor stator (8) and rotor (9) are provided between motor rear flange (5), the motor stator (8) turns with motor
Rotor shielding sleeve gap (10) are formed between sub (9), armature spindle is provided on the front-end bearing pedestal (3) and rear bearing block (6)
(11), it is installed on the armature spindle (11) positioned at the internal impeller (12) of the pump housing (1) and is located at bearing block side rotor chamber
Interior accessory impeller (13), it is characterised in that：Rotor shielding sleeve gap (10) outlet end by front-end bearing pedestal (3) liquid pass hole with
Guide vane (14) outlet communicates, and rotor shielding sleeve gap (10) arrival end passes through accessory impeller (13) inner cavity, armature spindle centre bore, preceding
Bearing block (3) is crossed liquid bath and is communicated with guide vane (14) outlet.
2. the high-pressure masked pump of chemical-process conveying according to claim 1, it is characterised in that：The casing (4) is left
Side is provided with main junction box (15).
3. the high-pressure masked pump of chemical-process conveying according to claim 2, it is characterised in that：The main junction box
(15) it is attached using pipe pipe butt welding mode with casing (4).
4. the high-pressure masked pump of chemical-process conveying according to claim 1, it is characterised in that：Further include to high pressure screen
Cover the monitoring and protecting device that pump is monitored and protects.
5. the high-pressure masked pump of chemical-process conveying according to claim 4, it is characterised in that：The monitoring protection dress
It sets including microcontroller chip (16), cooling and lubricating circulation fluid temperature monitoring (17), bearing axial direction wear monitor (18), bearing diameter
To wear monitor (19), housing leak detector (20), winding temperature monitor (21), display (22) and alarm
(23), the cooling and lubricating circulation fluid temperature monitoring (17), bearing axial direction wear monitor (18), bearing gauge wear monitoring
The parameter measured is sent to microcontroller chip (16) by device (19), housing leak detector (20), winding temperature monitor (21),
The parameter is compared with the threshold value of setting after being analyzed for microcontroller chip (16), when being more than the threshold value of setting, microcontroller chip
(16) control alarm (23) is alarmed, meanwhile, parameter is sent on display (22) and shows by microcontroller chip (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854442.8U CN207715383U (en) | 2017-12-27 | 2017-12-27 | A kind of high-pressure masked pump of chemical-process conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854442.8U CN207715383U (en) | 2017-12-27 | 2017-12-27 | A kind of high-pressure masked pump of chemical-process conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207715383U true CN207715383U (en) | 2018-08-10 |
Family
ID=63050097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721854442.8U Active CN207715383U (en) | 2017-12-27 | 2017-12-27 | A kind of high-pressure masked pump of chemical-process conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207715383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159548A (en) * | 2019-06-13 | 2019-08-23 | 广东骏驰科技股份有限公司 | A kind of electric centrifugal pump |
-
2017
- 2017-12-27 CN CN201721854442.8U patent/CN207715383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159548A (en) * | 2019-06-13 | 2019-08-23 | 广东骏驰科技股份有限公司 | A kind of electric centrifugal pump |
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