CN106315764A

CN106315764A - Method for obtaining fresh water by applying cerium oxide ceramic squirrel-cage explosion-proof motor thread system

Info

Publication number: CN106315764A
Application number: CN201610692528.9A
Authority: CN
Inventors: 李冀; 张意立
Original assignee: Jinjiang Power Technology Co Ltd
Current assignee: Jinjiang Power Technology Co Ltd
Priority date: 2016-08-20
Filing date: 2016-08-20
Publication date: 2017-01-11

Abstract

The invention belongs to a method for obtaining fresh water by applying a system, and discloses a method for obtaining fresh water by applying a cerium oxide ceramic squirrel-cage explosion-proof motor thread system. A volute thread boss is arranged on the inner cavity of a thread boosting pump body, wherein a boosting thread joint is arranged on the volute thread boss; a thread pressure exchange hoist pump is composed of a pressure hoisting thread pump part and a thread pressure exchanger part; a pressure hoisting thread pump is driven by a squirrel-cage III type explosion-proof motor; an inner-ring-free bearing in the squirrel-cage III type explosion-proof motor is integrally made of silicon carbide ceramics; as an improvement, an assembly method of the squirrel-cage III type explosion-proof motor and connecting steps of a thread joint pipeline as well as working processes of the thread pressure exchanger and reverse osmosis seawater desalination working processes are as follows: firstly, assembly of the squirrel-cage III type explosion-proof motor; secondly, assembling step of key parts; thirdly, connection of thread joint pipelines; fourthly, thread pressure exchanger workflow; and fifthly, reverse osmosis seawater desalination working processes. A thread connection structure is convenient to disassemble, assemble and maintain; the energy saving effect is obvious.

Description

Application ceria oxide ceramics mouse cage flameproof motor thread systems obtains fresh water method

Technical field

The invention belongs to application system and obtain fresh water method, be specifically related in reverse osmosis seawater desalination system set up pressure and hand over Change the application ceria oxide ceramics mouse cage flameproof motor thread systems acquisition fresh water method promoting pump.

Background technology

Along with scientific and technological progress, population is increasing, and people are the strongest to the hope of ocean development, and desalinization processes Increasingly widespread, the energy consumption cost of desalinization is by special concern.Desalinization in early days uses the way of distillation, such as multistage flash evaporation skill Art, energy consumption, at 9.0kWh/m3, the most only build the area that energy cost is the lowest in, such as Middle East petroleum state, or has used heat available Area.20 century 70 Reverse-osmosis Seawater Desalination Technologies put into application, through updating.Built up before the beginning of the eighties Process energy consumption 6.0kWh/m3 of most reverse osmosis seawater desalination systems, its topmost improvement is the high pressure brine after processing The Energy Efficient of pipe recycles.

The fresh water purity obtained through Reverse-osmosis Seawater Desalination Technology depends on the consistency of permeable membrane, and consistency gets over Gao Ze The fresh water purity obtained is the highest, requires the sea water participating in infiltration is brought up to higher pressure simultaneously.Accordingly, it is capable to reclaim effect Rate has become the key reducing desalinization cost.The pressure-exchange that the world today recycles at field of seawater desalination liquid energy Device is primarily present a series of mechanical movement part and electrical equipment switching mechanism, and maintenance rate is higher final affects production cost.As: in The reverse osmosis desalination device of state's license notification number CN 101041484 B band energy regenerating；Chinese patent mandate is public Announcement CN 100341609 C reverse osmosis sea water desalting energy recovery device multiple tracks pressure switcher etc..The world today is at sea water The pressure exchanger that desalination field liquid energy recycles mainly has following three kinds:

1, traditional rotor hydraulic cylinder structure is similar to plunger displacement pump, and advantage is that liquid working medium the most directly connects with discarded highly pressurised liquid Touching, peak efficiency is up to 95%, and the rotor of shortcoming hydraulic cylinder structure and rotor shaft self have the biggest friction power loss, especially Being that the reciprocation sealing technology of rotor shaft is most difficult to reach ideal effect, actual efficiency is often below 90%, and particularly frictional dissipation causes Equipment downtime is frequent, maintenance cost is high.The patent No.: 621010122952.2, China's invention announced on July 21st, 6210 is special Profit: for differential energy recovery device and the method for seawater desalination system, just belong to conventional rotors hydraulic cylinder structure；

2, the energy delivery devices of turbine water pump selection, advantage is that liquid working medium the most directly connects with discarded highly pressurised liquid Touch, and adapt to the transmission of big Fluence energies, but the peak efficiency of its unit is also below 75%, therefore the energy transmission of so combination sets Standby unit efficiency typically only 40% to 55%；

3, in the world desalinization is put into the earliest and most successful developed country, such as Japan, Denmark, Holland Sweden, Norway Britain, the U.S. and Germany etc., all did effort in terms of pressure-exchange, but its highest exchange efficiency be all not above 95%, And conveyance system is huge, the driving of external electrical equipment and switch valve etc. control element and too much cause contingency frequently to occur, finally Cause significantly increasing the extra charge such as equipment investment and daily management maintenance.

Summary of the invention

It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of sea water desalinating unit, equipped with thread pressure Exchange promotes pump, and pressure-exchange efficiency can be made to improve, and system structure is compacter, also eliminates switch valve etc. and controls unit Part, is finally reached and investment and daily management maintenance cost is greatly reduced.By the following technical solutions:

Application ceria oxide ceramics mouse cage flameproof motor thread systems obtains fresh water method, and this system includes sea water preprocessing pond 703, low pressure suction pipe 711, low pressure lift pump 722, moisturizing suction pipe 712, high pressure make-up pump 714, pipeline threeway 769, reverse osmosis membrane 720 and thread pressure exchange promote pump, reverse osmosis membrane 720 both sides are respectively film intake antrum 718 and film water chamber 728, spiral shell Stricture of vagina pressure-exchange promotes has supercharging nipple 743, release nipple 746, low pressure nipple 747 and pressure accumulation spiral shell on pump Stricture of vagina joint 749, is connected by film return duct 727 between pressure accumulation nipple 749 with film intake antrum 718, and film water chamber 728 is connected to Desalination water goes out pipe 729, is connected by high pressure sea water inlet pipe 719 between film intake antrum 718 is suitable for reading with pipeline threeway 769；Screw thread supercharging There is spiral case screw boss 744 on the pump housing 730 inner chamber, spiral case screw boss 744 has supercharging nipple 743, supercharging screw thread connect Being connected by conversion high-voltage tube 717 between 743 with pipeline threeway 769 side port, high pressure make-up pump 714 series connection is positioned at supplementary high-voltage tube On 716, supplement high-voltage tube 716 and be connected to pipeline threeway 769 end opening, low pressure lift pump 722 outlet and low pressure nipple 747 it Between connected by low pressure line 723, release nipple 746 is connected to drain line 726；

Horizontal screw thread it is in series with permanent to stream device 713 between described low pressure lift pump 722 import and described low pressure suction pipe 711, Normal thread it is in series with permanent to stream device 724 between described high pressure make-up pump 714 import and described moisturizing suction pipe 712, described Thread pressure exchange promote pump be made up of boost in pressure helical pump part and thread pressure switch segment, boost in pressure Helical pump is driven by mouse cage III type flame-proof electric motor 710, and the no inner-ring bearing 260 in mouse cage III type flame-proof electric motor 710 is overall Material is silicon carbide ceramics, as improvement: described mouse cage III type flame-proof electric motor 710 assemble method and nipple pipeline Connection Step and thread pressure switch workflow and reverse osmosis seawater desalting work process are as follows:

(1), mouse cage III type flame-proof electric motor 710 assemble method

Stator 251 is fixed on motor casing 210 endoporus, rotor 252 is fixed at motor rotary shaft 240 maximum gauge And corresponding with stator 251 position, the end cap casing through hole on motor front cover plate 220 is passed through with eight front shroud screws 221 226 match with the casing end face screw on motor casing 210 front end face, and motor front cover plate 220 is fixed on motor On the front end face of shell 210, fixed fore bearing 225 cylindrical, fore bearing on the Front Cover Bearing hole 224 of motor front cover plate 220 The bearing leading portion axle 245 of the 225 fixed motor rotary shafts of endoporus 240；With other eight back shroud screws 231 and motor casing Casing end face screw on 210 rear end faces matches, and motor back shroud 230 is fixed on motor casing 210 rear end face, electricity Fixed rear bearing 235 cylindrical on the bonnet centre bore 234 of motivation back shroud 230, the fixed motor of rear bearing 235 endoporus turns The bearing back segment axle 243 of axle 240；

(2), nipple pipeline Connection Step:

(1), supercharging female adapter connects, by the female thread on conversion high-voltage tube left end external screw thread and volute outlet boss point Not coating epoxy resin, pairing connects so that constitute static airtight fixing between conversion high-voltage tube and volute outlet boss；

(2) as supercharging female adapter connected mode, respectively by release nipple, low pressure nipple and pressure accumulation spiral shell Stricture of vagina joint is threadeded with the pipeline of its both sides, position so that constitute quiet between drain line and pressure release flow passage Only seal fixing, constitute between low pressure line and low pressure flow passage standstill seal fixes, film return duct and pressure accumulation flow passage Between constitute standstill seal fix；

(3), thread pressure switch workflow:

Exchanger rotor 740 uses and arranges pressure-exchange passage A-M on rotation round R position, respectively: passage A, passage B, channel C, passage D, passage E, passage F, passage G, passage H, passage J, passage K, passage L, passage M, two adjacent passages Between have isolation gusset 262 make isolate；Import rotation domatic 922 by low pressure and pressure accumulation imports rotation domatic 512 and exchanger The forward slanted angle of rotor 740 end face, and rotation domatic 912 is derived in supercharging and rotation domatic 522 and exchange are derived in release The reversed dip angle of device rotor 740 end face, just can allow unique movement parts exchanger rotor in thread pressure switch segment 740 rotate freely, and exchanger rotor 740 rotates with per second 20, complete flow direction switching in pressure-exchange passage A-M, real Existing pressure-exchange；

(4), reverse osmosis seawater desalting work process:

Low pressure suction pipe 711 and moisturizing suction pipe 712 are inserted into below pretreatment pool water surface 721 20 centimetres, start high pressure and supplement Pump 714, is drawn the pre-treating seawater in sea water preprocessing pond 703 by moisturizing suction pipe 712, successively through supplementing high-voltage tube 716, pipeline After threeway 769 and high pressure sea water inlet pipe 719, it is injected among film intake antrum 718 and directly participates in permeable membrane desalinization；

When the pressure of the pre-treating seawater in film intake antrum 718 reaches 6.0 MPas (MPa), the wherein pressure accumulation sea of damming of 80.8% Water is dammed by reverse osmosis membrane 720, and wherein the process fresh water of 19.2% penetrates reverse osmosis membrane 720, enters among film water chamber 728, warp Desalination water goes out pipe 729 and is transported to the stand-by region of fresh water deposit；

Fail to pass through reverse osmosis membrane 720 80.8% the pressure accumulation sea water that dams through film return duct 727, by pressure accumulation nipple 749 Enter into pressure accumulation runner 751 position, participate in the pressure accumulation sea water experience wave of damming of lower half among pressure-exchange passage A-M Raising and lowering, rotates to pressure release runner 752 position along with exchanger rotor 740 after pressure release, flows through release nipple 746, Emit from drain line 726 or deliver to downstream processes；

Meanwhile, start low pressure lift pump 722, low pressure suction pipe 711 draw the pretreatment sea in sea water preprocessing pond 703 Water, successively after low pressure line 723 and low pressure nipple 747, is injected into low pressure runner 742 position, participates in pressure-exchange Among passage A-M, the pre-treating seawater experience wave raising and lowering of the first half, rotates along with exchanger rotor 740 after supercharging To supercharging runner 741 position, flow through supercharging nipple 743 and pipeline threeway 769 successively, after being incorporated to high pressure sea water inlet pipe 719, It is injected among film intake antrum 718 and directly participates in permeable membrane desalinization.

Beneficial effects of the present invention:

1, the present invention use screw connection structure dismounting, easy to maintenance, particularly set up thread pressure exchange promote pump, pressure Promote the booster pump suction inlet 731 in helical pump part the most right with the supercharging center round 732 on thread pressure switch segment Standard, not only compact conformation, and, low pressure lift pump 722 only needs to account for the pre-place participating in reverse osmosis membrane 720 amount of work 80.8% The pressure of reason sea water brings up to 0.2 MPa (MPa), so that it may complete have being cut of 5.8 MPas (MPa) in film return duct 727 Stream pressure accumulation sea water realizes pressure-exchange, it is ensured that mouse cage III type flame-proof electric motor 710 only needs the pretreatment by accounting for amount of work 80.8% The pressure of sea water brings up to 6.0 MPas (MPa) from 5.8 MPas (MPa) again；Account for and participate in reverse osmosis membrane 720 amount of work 80.8% Pressure differential during the segmentation of pre-treating seawater improves only has 0.46 MPa (MPa), and energy-saving effect is obvious；

The acquisition fresh water penetrating reverse osmosis membrane 720 accounts for participation reverse osmosis membrane 720 amount of work 19.2%, accounts for participation reverse osmosis membrane 720 The pre-treating seawater of amount of work 19.2%, through high pressure make-up pump 714, directly brings up to 6.0 MPas (MPa) from atmospheric pressure；Aobvious So, the reverse osmosis membrane Seawater Desalination Project setting up thread pressure exchange lifting pump promotes pump with not having thread pressure exchange Reverse osmosis membrane Seawater Desalination Project compares, and the energy consumption obtaining unit fresh water reduces about 30%.

2, having impeller stepped hole 296 and impeller splined hole 294 on booster pump impeller 770, there is axle overhanging section of 246 outer ends of rotating shaft Spline segment 249, protecgulum hollow axle 280 passes through shaft extension hand-hole 285 and is positioned at the screw thread supercharging pump housing 730 spiral case, outer bearing Propping up to hold round and be combined with no inner-ring bearing 260 on 289, no inner-ring bearing 260 supports impeller bearing hub 290, rotating shaft overhanging section 246 Passing through hollow axle stepped hole 284, axle spline segment 249 and impeller splined hole 294 engage each other overhanging for rotating shaft section of 246 moment of torsion transmission To booster pump impeller 770；Said structure achieves motor rotary shaft 240 and fore bearing 225 and rear bearing 235 is only subjected to pure Moment of torsion, and radial force produced by spline engagement is born by no inner-ring bearing 260 completely, is only operated at protecgulum hollow axle On 280, it is entirely avoided the rotating shaft on motor rotary shaft 240 bears radial force for overhanging section 246, improve mouse cage III type anti-explosion electric Motivation 710 service life；

Thread pressure switch segment controls without elements such as the driving of any external electrical equipment and switch valves, imports rotation by low pressure Turn domatic 922 and pressure accumulation import rotate domatic 512 with the forward slanted angle of exchanger rotor 740, and supercharging derives and rotates Domatic 912 and pressure accumulation import rotate domatic 512 with the reversed dip angle of exchanger rotor 740, thread pressure just can be allowed to exchange In machine part, unique movement parts exchanger rotor 740 rotates freely, completes flow direction switching in pressure-exchange passage A-M, Realize pressure-exchange, it is to avoid the contingency that employing any electrical equipment control may cause occurs.

3, mouse cage III type flame-proof electric motor 710 have employed the mouth seat endoporus 279 of connection jaws seat 275 is suitable for reading mouth seat flange 278, connection jaws seat 275 has endoporus shoulder block 222 bottom mouth seat endoporus 279, endoporus shoulder block 222 center have wiring through hole 223 with Between mouth seat endoporus 279, there is axiality；Gland through hole 237 and the screw on mouth seat flange 278 is had in gland flange 217 outer rim Corresponding, the inner face of gland flange 217 has between gland boss 239 and mouth seat endoporus 279 for matched in clearance；Gland flange 217 centers have the inner external screw thread of gland inner bolt hole 238 and pin interfaces 250 to match；Endoporus shoulder block 222 and gland boss 239 Between have the first pad 219 successively, seal hole circle 267 and second pad 218；First pad 219 is placed on mouth seat endoporus 279 end Portion againsts endoporus shoulder block 222, then is sequentially placed into sealing hole circle 267 and the second pad 218, by convex for the gland in gland flange 217 Platform 239 is directed at mouth seat endoporus 279, and two gland bolts 288 pass through the gland through hole 237 in gland flange 217 outer rim and mouth seat Screw on flange 278 is tightened so that sealing hole is airtight after enclosing 267 compressive deformations holds cable 255 tightly.Above-mentioned outlet structure is fitted For the outlet of flameproof motor, have that safe and reliable to operation, installation and debugging are convenient, save air compressor machine inner space, winding displacement The advantages such as convenience.

4, the outer bearing of molybdenum alloy hard wear-resistant coating props up and holds round 289 surfaces, the no inner-ring bearing of combination ceria oxide ceramics 260, corrosion resistance and wearability are all eager to excel more than 19.2% than conventional stainless steel material.

Accompanying drawing explanation

Fig. 1 is the overall flow figure of the present invention.

Fig. 2 is the profile that thread pressure exchange promotes the boost in pressure helical pump part in pump, in figure outside motor Shell 210 is semi-section.

Fig. 3 is the profile that thread pressure exchange promotes the thread pressure switch segment in pump.

Fig. 4 is the operation principle schematic diagram of thread pressure switch in Fig. 3.

Fig. 5 is the X X sectional view in Fig. 3, eliminates connecting bolt 771 in figure.

Fig. 6 is the Y Y sectional view in Fig. 3, eliminates connecting bolt 771 in figure.

Fig. 7 is the three-dimensional part sectioned view of the exchanger rotor 740 in Fig. 3.

Fig. 8 be two kinds of liquid in exchanger rotor 740 during pressure-exchange, in the range of N N to P P in Fig. 3, with pressure A-M center, power interchange channel is radius, the fluid pressure energy exchange schematic flow sheet launched along rotation round R.

Fig. 9 be each pressure-exchange passage A-M in Fig. 8 after have rotated 1/12 circle, namely have rotated a passage Behind position, two kinds of liquid present positions of each channel interior.

Two kinds of liquid present positions in each passage when Figure 10 is pressure-exchange passage A-M rotation 2/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 11 is pressure-exchange passage A-M rotation 3/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 12 is pressure-exchange passage A-M rotation 4/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 13 is pressure-exchange passage A-M rotation 5/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 14 is pressure-exchange passage A-M rotation 6/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 15 is pressure-exchange passage A-M rotation 7/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 16 is pressure-exchange passage A-M rotation 8/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 17 is pressure-exchange passage A-M rotation 9/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 18 is pressure-exchange passage A-M rotation 10/12 circle in Fig. 8.

Two kinds of liquid present positions in each passage when Figure 19 is pressure-exchange passage A-M rotation 11/12 circle in Fig. 8.

Figure 20 is the heavy gauge schematic diagram at position residing for the rotating shaft in Fig. 2 overhanging section 246 and impeller bearing hub 290.

Figure 21 is position upward view residing for the step backing-up screw 274 in Figure 20.

Figure 22 is the independent enlarged drawing of protecgulum hollow axle 280 in Figure 20.

Figure 23 is that the impeller bearing hub 290 in Figure 20 omits enlarged drawing.

Figure 24 is that the motor front cover plate 220 in Fig. 2 individually rotates enlarged drawing.

Figure 25 is the connection jaws seat 275 enlarged local section schematic diagram in Fig. 2.

Figure 26 is the gland flange 217 enlarged local section schematic diagram in Figure 25.

Figure 27 is the permanent profile (forward circulation status) crossing axial line to stream device 724 of the normal thread in Fig. 1.

Figure 28 is that in Figure 27, normal thread is permanent is in reverse blocking state to stream device 724.

Figure 29 is the mobile spool sectional axonometric drawing in Figure 27 or Figure 28.

Figure 30 is the mobile spool profile in Figure 27 or Figure 28.

Figure 31 is X X sectional view in Figure 27.

Figure 32 is Y Y sectional view in Figure 27.

Figure 33 is Z Z sectional view in Figure 27.

Figure 34 is the permanent profile forward circulation status crossing axial line to stream device 713 of the horizontal screw thread in Fig. 1.

Figure 35 is that the horizontal screw thread in Figure 34 is permanent is in reverse blocking state to stream device 713.

Figure 36 is W-W sectional view in Figure 34.

Figure 37 is horizontal threaded valve body 630 axonometric chart in Figure 34 or Figure 35.

Figure 38 is that rotation spool 620 axonometric chart in Figure 34 represents annular flow road junction 622.

Figure 39 is that rotation spool 620 axonometric chart in Figure 35 represents circular flow channel mouth 621.

Figure 40 is the profile at supercharging nipple 743 position in Fig. 1.

Detailed description of the invention

In conjunction with the accompanying drawings and embodiments to the structure of the present invention and operation principle and in reverse osmosis seawater desalination system Application is further elaborated:

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Figure 20, Figure 27, Figure 34 and Figure 40, apply ceria oxide ceramics mouse cage Flameproof motor thread systems obtains fresh water method, and this system includes that sea water preprocessing pond 703, low pressure suction pipe 711, low pressure promote Pump 722, moisturizing suction pipe 712, high pressure make-up pump 714, pipeline threeway 769, reverse osmosis membrane 720 and thread pressure exchange elevator Pump, reverse osmosis membrane 720 both sides are respectively film intake antrum 718 and film water chamber 728, and thread pressure exchange promotes has supercharging on pump Nipple 743, release nipple 746, low pressure nipple 747 and pressure accumulation nipple 749, pressure accumulation nipple 749 Being connected by film return duct 727 with between film intake antrum 718, film water chamber 728 is connected to desalination water and goes out pipe 729, film intake antrum 718 It is connected by high pressure sea water inlet pipe 719 between suitable for reading with pipeline threeway 769；There is spiral case screw thread convex on the screw thread supercharging pump housing 730 inner chamber Platform 744, spiral case screw boss 744 has supercharging nipple 743, between supercharging nipple 743 and pipeline threeway 769 side port Connected by conversion high-voltage tube 717, supplement high-voltage tube 716 two ends permanent with pipeline threeway 769 end opening and normal thread to stream respectively Device 724 exports airtight connection, and high pressure make-up pump 714 is connected on supplementary high-voltage tube 716；Low pressure line 723 two ends are respectively with low Pressure nipple 747 and horizontal screw thread perseverance export airtight connection to stream device 713, and low pressure lift pump 722 is connected on low pressure line On 723, release nipple 746 is connected to drain line 726；As improvement:

Horizontal screw thread it is in series with permanent to stream device 713 between described low pressure lift pump 722 import and described low pressure suction pipe 711, Normal thread it is in series with permanent to stream device 724 between described high pressure make-up pump 714 import and described moisturizing suction pipe 712, described Thread pressure exchange promote pump be made up of boost in pressure helical pump part and thread pressure switch segment, boost in pressure Helical pump is driven by mouse cage III type flame-proof electric motor 710；

Described thread pressure switch segment includes exchanger rotor 740, exchanger urceolus 779 and pretreated water end cap 745 and trap water end cap 754, exchanger rotor 740 has two ends of rotor face 924 and rotor outer circle 821, rotor outer circle 821 with Coordinate for rotary sliding between exchanger urceolus 779 inner circle, exchanger rotor 740 has the pressure-exchange of circumference annular configuration Passage A-M and rotor center through hole 825；

Having described low pressure nipple 747 on pretreated water end cap 745 cylindrical, pretreated water end cap 745 has increasing on outer face Pressure flange dish 773 and supercharging center round 732, pretreated water end cap 745 inner face has low pressure import and rotates domatic 922 and increase Pressure derives rotation domatic 912 and supercharging lid screw 774；Low pressure nipple 747 and low pressure import rotate between domatic 922 by Low pressure runner 742 connects, and supercharging center round 732 is derived with supercharging to rotate and connected by supercharging runner 741 between domatic 912；

Having described pressure accumulation nipple 749 on trap water end cap 754 cylindrical, trap water end cap 754 has release spiral shell on outer face Stricture of vagina joint 746, trap water end cap 754 inner face has release derive rotate domatic 522 and pressure accumulation import rotate domatic 512 and Decompression cover screw 775；Pressure accumulation nipple 749 imports with pressure accumulation to rotate and is connected by pressure accumulation runner 751 between domatic 512, release Nipple 746 is derived with release to rotate and is connected by pressure release runner 752 between domatic 522；

Connecting bolt 771 matched in clearance runs through rotor center through hole 825, connecting bolt 771 two ends respectively with described supercharging lid Screw 774 and described decompression cover screw 775 connect fixing, exchanger urceolus 779 two ends and described trap water end cap 754 Be airtight fixing between inner face and pretreated water end cap 745 inner face, two ends of rotor face 924 respectively with described trap water The gap of 0.01 to 0.03 millimeter is had between end cap 754 inner face and pretreated water end cap 745 inner face；

Described boost in pressure helical pump part includes the screw thread supercharging pump housing 730 and booster pump impeller 770, and with described mouse cage III type flame-proof electric motor 710 composition one,

The screw thread supercharging pump housing 730 front end face has booster pump suction inlet 731 and overall fixing threaded hole 772 respectively, on supercharging ring flange 773 Having through hole corresponding with overall fixing threaded hole 772, trip bolt passes through the through hole on supercharging ring flange 773 and overall fixing threaded hole 772 coordinate, and supercharging center round 732 is directed at booster pump suction inlet 731；

There is pump housing rear end face 200 on the screw thread supercharging pump housing 730, pump housing rear end face 200 has shaft extension hand-hole 285 He respectively Motor fixing threaded hole 204, motor front cover plate 220 outer rim has front shroud flange 201, front shroud flange 201 has front shroud Through hole 207, has motor gasket seal 202, six motor flange spiral shells between front shroud flange 201 and pump housing rear end face 200 Nail 205 pass through successively after the sealing gasket through hole on front shroud through hole 207 and motor gasket seal 202 with motor fixing threaded hole 204 connect fastening；

Motor front cover plate 220 is fixed on motor fixing threaded hole 204, motor front cover plate 220 is fixed with protecgulum hollow Axle 280, protecgulum hollow axle 280 has hollow axle stepped hole 284 and outer bearing prop up and holds round 289, hollow axle stepped hole 284 and rotating shaft Organic sealing assembly 248 between overhanging section 246；

There are impeller bearing hub 290, protecgulum hollow axle 280 to pass through shaft extension hand-hole 285 on booster pump impeller 770 and are positioned at screw thread In the supercharging pump housing 730 spiral case, outer bearing props up to hold round and is combined with no inner-ring bearing 260 on 289, and no inner-ring bearing 260 supports leaf Wheel bearing hub 290, rotating shaft passes through hollow axle stepped hole 284 for overhanging section 246, and rotating shaft delivers torque to booster pump for overhanging section 246 Impeller 770；

Described outer bearing props up and holds round the molybdenum alloy hard wear-resistant coating that 289 surfaces have a layer thickness to be 0.61 millimeter；Molybdenum alloy The material of hard wear-resistant coating is elementary composition by following percentage by weight: Mo:16%, Nb:3.5%, Cr:2.8%, W: 2.5%, Ni:2.4%, Ti:2.2%, C:1.2%, surplus is Fe and inevitable impurity；The percentage by weight of described impurity contains Amount is: Sn is 0.04%, Si is 0.17%, Mn is 0.024%, S is 0.009%, P is 0.014%；Molybdenum alloy hard, wear-resistant is coated with The material Specifeca tion speeification of layer is: Rockwell hardness HRC value is 62；

The overall material of described no inner-ring bearing 260 is ceria oxide ceramics, with CeO₂(cerium oxide) composite is base material, joins With mineralizer MgO (magnesium oxide), BaCO₃(brium carbonate) and bonding clay form, and the weight percent content of its each component For CeO₂: 94.8%, MgO:1.34%, BaCO₃: 1.56%, remaining is bonding clay.

As improving further: in Fig. 2, Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25 and Figure 26, described mouse cage III Type flame-proof electric motor 710 include motor front cover plate 220, motor back shroud 230, motor rotary shaft 240, pin interfaces 250, Stator 251 and rotor 252, stator 251 is fixed on motor casing 210 endoporus, and rotor 252 is fixed on motor rotary shaft 240 At maximum gauge and corresponding with stator 251 position, motor front cover plate 220 there is front shroud screw 221 be fixed on front end face, Fixed fore bearing 225 cylindrical, the fixed motor of fore bearing 225 endoporus on the Front Cover Bearing hole 224 of motor front cover plate 220 The bearing leading portion axle 245 of rotating shaft 240；Back shroud screw 231 is had to be fixed on rear end face, after motor on motor back shroud 230 Fixed rear bearing 235 cylindrical, the fixed motor rotary shaft of rear bearing 235 endoporus 240 on the bonnet centre bore 234 of cover plate 230 Bearing back segment axle 243, there is shaft end 233 bearing back segment axle 243 rear end, fixed electric motor fan blade on shaft end 233 232, fan blade outer housing 212 is fixed on motor back shroud 230 cylindrical；Gland is had between pin interfaces 250 and connection jaws seat 275 Flange 217, gland flange 217 is fixed on sealing hole circle 267 in the mouth seat endoporus 279 of connection jaws seat 275；Motor front cover plate 220 are fixed with protecgulum hollow axle 280, have a no inner-ring bearing between protecgulum hollow axle 280 and described impeller bearing hub 290 260；

The mouth seat endoporus 279 of connection jaws seat 275 is suitable for reading mouth seat flange 278, and connection jaws seat 275 has bottom mouth seat endoporus 279 Endoporus shoulder block 222, endoporus shoulder block 222 center has between wiring through hole 223 and mouth seat endoporus 279 and has axiality；Gland flange There is gland through hole 237 corresponding with the screw on mouth seat flange 278 in 217 outer rims, the inner face of gland flange 217 has gland It is matched in clearance between boss 239 and mouth seat endoporus 279；There are gland inner bolt hole 238 and pin interfaces in gland flange 217 center 250 inner external screw threads match；There is the first pad 219 between endoporus shoulder block 222 and gland boss 239 successively, seal hole circle 267 With the second pad 218；First pad 219 is placed on bottom mouth seat endoporus 279 and againsts endoporus shoulder block 222, then is sequentially placed into sealing Hole circle 267 and the second pad 218, be directed at mouth seat endoporus 279, two to three glands by the gland boss 239 in gland flange 217 The gland through hole 237 that bolt 288 passes through in gland flange 217 outer rim is tightened with the screw on mouth seat flange 278 so that seal hole Airtight after enclosing 267 compressive deformations hold cable 255 tightly.

As improving further: be free spindle flanges 807 on protecgulum hollow axle 280, have outer shaft outside hollow axle flange 807 Hold and hold round 289 and hollow axle through hole 804, inside hollow axle flange 807, have hollow axle stepped hole 284 and hollow axle regulation step 882, it is interference fits between hollow axle regulation step 882 cylindrical and Front Cover Bearing hole 224, hollow axle regulation step 882 has Sealing ring draw-in groove 809, sealing ring draw-in groove 809 has hollow axle sealing ring 209, hollow axle sealing ring 209 and Front Cover Bearing hole 224 Between constitute static seal；Have on motor casing 210 end face between motor sealing ring 208 and motor front cover plate 220 and constitute Static seal；Organic envelope dismounting groove 808 between hollow axle stepped hole 284 and hollow axle through hole 804, it is simple to specific purpose tool demountor seals Assembly 248.

As improving further: in Figure 27, Figure 28, Figure 29, Figure 30, Figure 31, Figure 32 and Figure 33, described normal thread is permanent Including interior bolted joint valve body 150, upper baffle 130, lower baffle 180 and mobile spool to stream device 724, mobile spool is by upper Half spool 160 and lower half spool 170 are formed, the spiral shell in there is valve body at two ends up and down of described interior bolted joint valve body 150 cylindrical Stricture of vagina 155, the interior round tube hole about 157 of described interior bolted joint valve body 150 is topped bar hole 153 and hole 158 of getting out of a predicament or an embarrassing situation, institute respectively State top bar upper end, hole 153 and described lower end, hole 158 of getting out of a predicament or an embarrassing situation has fastening inner bolt hole 154 respectively；Lead on described Fluid 130 planar ends is fixedly connected cylinder 132, and connecting below upper cylinder 132 has runner round bar 134, runner round bar Connect below 134 and have cylinder valve rod 131, described upper cylinder 132 excircle dimension and described cylinder valve rod 131 excircle dimension Identical, described upper baffle 130 exterior arc surface has upper four plates 135 in location, positions upper four plate 135 outer rims and appear on the stage with described For being slidably matched between hole, rank 153, the described gland female thread 145 of taper hole gland 140 above and described topping bar The fastening inner bolt hole 154 of upper end, hole 153 combines, and the gland inner face 143 of taper hole gland 140 is by four plates on described location 135 fix with described interior bolted joint valve body 150；Described lower baffle 180 planar ends have lower water conservancy diversion unthreaded hole 189 inner circle with For being slidably matched between cylinder valve rod 131 cylindrical, between described lower water conservancy diversion unthreaded hole 189 bottom and cylinder valve rod 131 lower surface There is fit-up gap 139；Have lower four plates 185 in location on described lower baffle 180 exterior arc surface, lower four plate 185 outer rims in location with Described gets out of a predicament or an embarrassing situation between hole 158 as being slidably matched, and is positioned at the gland female thread 145 of taper hole gland 140 described in lower section and institute The fastening inner bolt hole 154 of the lower end, hole 158 of getting out of a predicament or an embarrassing situation stated combines lower four plates 185 in described location and described interior bolted joint Valve body 150 is fixed；There is upper taper cone barrel 169 on described upper half spool 160, have between upper taper cone barrel 169 and upper cone 168 Connecting muscle 161 in SANYE to be connected, described upper taper cone barrel 169 outer rim connects sealed upper end face 162, described upper taper cone barrel 169 inner edges connect top cylinder female thread 163, and described upper cone 168 has inner circle 164 on spool, on spool inner circle 164 with For being slidably matched between described upper cylinder 132 cylindrical；Lower taper cone barrel 179, lower taper cone barrel is had on described lower half spool 170 Having under SANYE between 179 with lower cone 178 and connect muscle 171 and be connected, described lower taper cone barrel 179 outer rim connects sealing lower end Face 172, described lower taper cone barrel 179 inner edge connects that doffing external screw thread 173 is airtight with described top cylinder female thread 163 to match Close；Inner circle 175 and inner circle 174 chi under the spool on described lower cone 178 in the described spool at doffing external screw thread 173 For being slidably matched between very little identical and equal and described cylinder valve rod 131 cylindrical；Described sealed upper end face 162 is close with described Airtight fixed cavity cylinder 165 both ends of the surface between envelope lower surface 172, between cavity cylinder 165 and described interior round tube hole 157 For matched in clearance；Described upper taper cone barrel 169 cylindrical is equal with described lower taper cone barrel 179 cylindrical and all interior flexible with described For being slidably matched between hole 157；Described position upper four plates 135 and described location time four plates 185 single leaf thickness be 6 to 7 millimeters.

As improving further: in Figure 34, Figure 35, Figure 36, Figure 37, Figure 38 and Figure 39, described horizontal screw thread is permanent to stream Device 713 includes cylinder axis 610, rotation spool 620, horizontal threaded valve body 630, trip bolt 670 and outer end cap 690, described Valve body-side plane 636, valve body inletpiston hard layer 638 and valve outlet plane hard layer 639 is had on horizontal threaded valve body 630 And outlet elbow 631 and import bend pipe 632；

There is winding pipe exit inner thread head 615 outlet elbow 631 outer end, and winding pipe exit inner thread head 615 has winding pipe exit to connect Female thread 617 and the winding pipe exit thread seal conical surface 614；

There is bend pipe import inner thread head 635 import bend pipe 632 outer end, and bend pipe import inner thread head 635 has bend pipe import to connect Female thread 637 and the bend pipe import thread seal conical surface 634；

The described male connection in moisturizing suction pipe 712 right end is connected female thread 637 with bend pipe import and docks, and enters at bend pipe Constitute import helixseal at the mouth thread seal conical surface 634 to fix；

The described male connection on supplementary high-voltage tube 716 left end head is connected female thread 617 and docks, at bend pipe with winding pipe exit Constitute import helixseal at the outlet thread seal conical surface 614 to fix；

Described import bend pipe 632 the inner is connected to valve body inletpiston hard layer 638, and described outlet elbow 631 is inner even Then valve outlet plane hard layer 639；Described valve body inletpiston hard layer 638 and valve outlet plane hard layer 639 Top edge be connected with valve body sector cancave cambered surface 663, described valve body inletpiston hard layer 638 and valve outlet plane are hard The lower limb of matter layer 639 is connected with valve body circle cancave cambered surface 662, and the valve body-side plane 636 of both sides is respectively arranged with screw hole 627；Two The end cap counterbore 697 corresponding with described screw hole 627 is had on the most described outer end cap 690；Described trip bolt 670 is worn Cross described end cap counterbore 697 to match, by the end cap inner plane of described outer end cap 690 with the fastening of described screw hole 627 698 are close to airtight with described valve body-side plane 636；

Having enclosing cover axis hole 691 on two described outer end caps 690, enclosing cover axis hole 691 has dead axle seal groove 659, dead axle is close Seal groove 659 guarantees that enclosing cover axis hole 691 seals with described cylinder axis 610 two ends and coordinates；

Described rotation spool 620 includes spool fan-shaped cylinder 625 and valve element circle body 682, and valve element circle body 682 has pipe Both ends of the surface 689 and valve element circle post holes 681, valve element circle post holes 681 coordinates with described cylinder axis 610 cylindrical rotary sliding, circle It it is matched in clearance between pipe both ends of the surface 689 and end cap inner plane 698；

Spool two sides 685, spool sector convex globoidal 683 and spool entrance point plane 628 and is had on spool fan-shaped cylinder 625 Cartridge outlet transverse plane 629, spool entrance point plane 628 has annular flow road junction 622 and inlet face seal groove 652, spool Circular flow channel mouth 621 and exit face seal groove 651 is had in port of export plane 629；

Four tracts of runners 688 of deformation are had to be connected between described annular flow road junction 622 and described circular flow channel mouth 621；Described Four tracts of runners 688 of deformation bend flow channel cone 624 part and the described spool fan-shaped cylinder 625 that are contained between have and be connected three Sheet muscle 644 is connected, single leaf thickness is circular flow channel mouth 621 diameter the 1/15 of described three muscle 644 of connection.

In embodiment:

One, hollow axle regulation step 882 cylindrical and outer bearing prop up and hold round the axiality pass between 289 with six grades of tolerance grades System；There is protecgulum concave station face 229 on motor front cover plate 220 lateral surface, protecgulum concave station face 229 has six protecgulum screws 227, empty There are six hollow axle stepped holes 805 corresponding with protecgulum screw 227 on spindle flanges 807；Hollow axle screw 228 passes through hollow axle Stepped hole 805 matches with protecgulum screw 227, is fixed on by protecgulum hollow axle 280 on protecgulum concave station face 229；Protecgulum concave station face There is between 229 and Front Cover Bearing hole 224 the perpendicularity relation of six grades of tolerance grades；Hollow axle on protecgulum hollow axle 280 is adjusted Joint step 882 the inner is stretched into Front Cover Bearing hole 224 and props up fore bearing 225；

Described impeller bearing hub 290 inner end has impeller stepped hole 296, impeller stepped hole 296 to have impeller splined hole on bottom surface 294, impeller bearing hub 290 outer face has locking screw 297, impeller stepped hole 296 has stepped hole escape 293 and impeller Draw-in groove 298, in impeller draw-in groove 298, clearance fit has impeller bore snap ring 291, impeller stepped hole 296 base angle to be placed with on position Impeller adjusting ring 292, bearing outer ring 269 two ends against impeller bore snap ring 291 and impeller adjusting ring 292 respectively；

Described no inner-ring bearing 260 is made up of bearing outer ring 269 and cylinder needle roller 268, and bearing outer ring 269 cylindrical is fixed on In impeller stepped hole 296, cylinder needle roller 268 props up hold round between 289 at bearing outer ring 269 and described outer bearing；

Coordinate for the axially slidable of spline tooth circumferential engagement between impeller splined hole 294 with axle spline segment 249, axle spline segment There is axle head screw 247 on the outer face of 249, axle head screw 247 is combined with step backing-up screw 274, step backing-up screw 274 Limit the axial displacement of axial positioning retainer ring 270, axial positioning retainer ring 270 outer rim position is fixed on outside impeller splined hole 294 On transverse plane, then limit the impeller bearing hub 290 axial displacement relative to axle spline segment 249；Axially outside positioning retainer ring 270 Locking catch 271, locking catch 271 is had together with axial positioning retainer ring 270, to be fixed on impeller by back-up ring screw 277 on side On the outer transverse plane of splined hole 294；There are two parallel ribs 273 on the spiral shell brain of step backing-up screw 274, locking catch 271 has gear Sheet corner edges 272, catch corner edges 272 is close on any one flat limit on two parallel ribs 273.

Two, the mouse cage III type flame-proof electric motor 710 in the present invention and critical component assembling process are as follows:

(1), mouse cage III type flame-proof electric motor 710 assemble method

Stator 251 is fixed on motor casing 210 endoporus, rotor 252 is fixed at motor rotary shaft 240 maximum gauge And corresponding with stator 251 position, the end cap casing through hole on motor front cover plate 220 is passed through with eight front shroud screws 221 226 match with the casing end face screw on motor casing 210 front end face, and motor front cover plate 220 is fixed on motor On the front end face of shell 210, fixed fore bearing 225 cylindrical, fore bearing on the Front Cover Bearing hole 224 of motor front cover plate 220 The bearing leading portion axle 245 of the 225 fixed motor rotary shafts of endoporus 240；With other eight back shroud screws 231 and motor casing Casing end face screw on 210 rear end faces matches, and motor back shroud 230 is fixed on motor casing 210 rear end face, electricity Fixed rear bearing 235 cylindrical on the bonnet centre bore 234 of motivation back shroud 230, the fixed motor of rear bearing 235 endoporus turns The bearing back segment axle 243 of axle 240.

(2), nipple pipeline Connection Step:

(1), supercharging female adapter 743 connects, by conversion high-voltage tube 717 left end external screw thread and volute outlet boss 744 Coating epoxy resin on female thread respectively, pairing connects so that constitute between conversion high-voltage tube 717 and volute outlet boss 744 Static airtight fixing；

(2) as supercharging female adapter 743 connected mode, respectively by release nipple 746, low pressure nipple 747 Threaded with the pipeline of pressure accumulation nipple 749 with its both sides, position so that drain line 726 and pressure release runner 752 connection between constitute standstill seal fix, low pressure line 723 connect with low pressure runner 742 between composition standstill seal fix, Film return duct 727 constitutes standstill seal between connecting with pressure accumulation runner 751 to be fixed；

(3), critical component number of assembling steps:

(1) protecgulum hollow axle 280 is installed:

Hollow axle on protecgulum hollow axle 280 is regulated step 882 near with the Front Cover Bearing hole 224 on motor front cover plate 220 Interference fits at outer end, and pass through the hollow axle stepped hole 805 on protecgulum hollow axle 280 and motor with hollow axle screw 228 Protecgulum screw 227 on front shroud 220 matches, by the hollow axle flange 807 on protecgulum hollow axle 280 and motor front cover plate Protecgulum concave station face 229 on 220 is close to fix so that the hollow axle stepped hole 284 on protecgulum hollow axle 280 and motor rotary shaft There is between overhanging section of 246 outlines of the rotating shaft of 240 high accuracy axiality and fix machine sealing assembly 248.Meanwhile, protecgulum hollow axle The rotation of 1.115 millimeters is had between hollow axle through hole 804 and overhanging section of 246 outlines of the rotating shaft of motor rotary shaft 240 on 280 Space.

(2) no inner-ring bearing 260 is installed:

No inner-ring bearing 260 uses RNA type separate type no inner-ring bearing structure.

First put among impeller stepped hole 296 and cross stepped hole escape 293 by impeller adjusting ring 292 matched in clearance to paste On bearing hub bore bottom surface 295；Again the slight interference fit of bearing outer ring 269 on no inner-ring bearing 260 is pressed into impeller bearing Among impeller stepped hole 296 on hub 290, then impeller bore snap ring 291 specific purpose tool is put into impeller draw-in groove 298, make Obtain bearing outer ring 269 both sides and against impeller bore snap ring 291 and impeller adjusting ring 292 respectively.

(3) connection between impeller bearing hub 290 and motor rotary shaft 240:

The bearing outer ring 269 being fixed on impeller bearing hub 290 is inserted in together with cylinder needle roller 268 and is fixed on outer bearing and props up Hold round 289 last points, rotate booster pump impeller 770 so that the impeller splined hole 294 on impeller bearing hub 290 and motor Axle spline segment 249 alignment in rotating shaft 240 matches, and continues to push against impeller bearing hub 290 so that the circle on bearing outer ring 269 Post needle roller 268 is overall to be propped up with outer bearing and holds round 289 and match completely；

First take step backing-up screw 274 pass through after axial positioning retainer ring 270 centre bore with the axle head spiral shell on motor rotary shaft 240 Match in hole 247 so that the axially positioning retainer ring 270 two parallel ribs 273 and axle spline segments on step backing-up screw 274 One millimeter of axially free amount is had between 249 outer faces；

Again with five back-up ring screws 277 pass through after the positioning retainer ring through hole on axial positioning retainer ring 270 with on impeller bearing hub 290 Locking screw 297 match, axial positioning retainer ring 270 is also fastened on impeller bearing hub 290 outer face；

Finally pass through the through hole on locking catch 271 and the location on axial positioning retainer ring 270 successively with a back-up ring screw 277 Also match with the locking screw 297 on impeller bearing hub 290 after back-up ring through hole so that the catch turning on locking catch 271 Limit 272 is directed on any one flat limit on two parallel ribs 273, plays locking effect.

Three, thread pressure switch workflow:

In Fig. 8 to Figure 19, exchanger rotor 740 uses and arranges pressure-exchange passage A-M on rotation round R position, respectively It is: passage A, passage B, channel C, passage D, passage E, passage F, passage G, passage H, passage J, passage K, passage L, passage M, Isolation gusset 262 is had to make to isolate between two adjacent passages；Import rotation domatic 922 by low pressure and pressure accumulation imports Rotation Slope Face 512 and the forward slanted angle of exchanger rotor 740 end face, and rotation domatic 912 is derived in supercharging and release is derived and rotated Domatic 522 with the reversed dip angle of exchanger rotor 740 end face, just can allow and thread pressure switch segment uniquely moves Part exchanger rotor 740 rotates freely, and exchanger rotor 740 rotates with per second 20, completes flowing in pressure-exchange passage A-M Direction switches, it is achieved pressure-exchange.

When the pre-treating seawater in pressure-exchange passage A-M is respectively at and low pressure runner together with the pressure accumulation sea water that dams 742 and during pressure release runner 752 same position, the pre-treating seawater of 0.2 MPa (MPa) pushes the pressure accumulation sea water that dams of atmospheric pressure Flow downwardly among pressure release runner 752；

When the pre-treating seawater in pressure-exchange passage A-M be respectively at together with the pressure accumulation sea water that dams with supercharging runner 741 and During pressure accumulation runner 751 same position, the pressure accumulation sea water that dams of 5.8 MPas (MPa) pushes pre-treating seawater, is injected up in supercharging Heart round 732；The pre-treating seawater being possessed 5.8 MPas (MPa) by exchange pressure is pressurized impeller of pump by booster pump suction inlet 731 770 suctions by centrifugation power are pressurized to 6.0 MPas (MPa) and flow through spiral case screw boss 744 and supercharging nipple 743 successively, Finally it is incorporated to high pressure sea water inlet pipe 719.

Four, reverse osmosis seawater desalting work process:

Owing to exchanger rotor 740 rotates with per second 20, the pre-treating seawater among pressure-exchange passage A-M with dam Between pressure accumulation sea water, contact surface can produce blending, learns that blending amount only accounts for participation reverse osmosis membrane 720 amount of work 1% after tested.Increase If thread pressure exchange promotes pump, the pressure accumulation sea water that dams of fail to pass through reverse osmosis membrane 720 80.8% is obtained efficient recovery Utilize, reach the effect of energy-saving and emission-reduction.

Five, the above-mentioned prominent substantive distinguishing features of the present invention, it is ensured that can bring the most progressive following effect:

3, horizontal screw thread it is in series with between low pressure line 723 and low pressure suction pipe 711 permanent to stream device 713, annular flow road junction 622 It is connected this special setting with there being four tracts of runners 688 of deformation between circular flow channel mouth 621, it is ensured that the wink in low pressure runner 742 State high pressure sea water will not produce reverse counterflow, operates safe and reliable；The permanent rotation spool 620 in stream device 713 of horizontal screw thread has Standby rotation is sensitive, has four tracts of runners 688 of deformation to be connected this special set between annular flow road junction 622 with circular flow channel mouth 621 Put so that horizontal screw thread is permanent does not has any obstruction parts such as spring-like in stream device 713 global facility, can be achieved with permanent to stream Dynamic function, completely eliminates because the pipeline fittings fault on low pressure suction pipe 711 affects the hidden danger that the present invention breaks down.

4, normal thread it is in series with between high pressure make-up pump 714 import and moisturizing suction pipe 712 permanent to stream device 724, this spy Different setting, it is ensured that the high pressure sea water supplementing 6 MPas (MPa) in high-voltage tube 716 will not produce reverse counterflow, and operation safety can Lean on.The permanent ring cavity 166 in stream device 724 of normal thread is arranged so that it is permanent to stream device that mobile spool is suspended in normal thread Within 724, mobile spool integrated suspension structure is allowed to be possessed unlatching, closes agility；Make normal thread permanent overall to stream device 724 Parts do not have any obstruction parts such as spring-like, can be achieved with permanent to flowing function, completely eliminate because of moisturizing suction pipe 712 On pipeline fittings fault affect the hidden danger that the present invention normally works.

5, mouse cage III type flame-proof electric motor 710 have employed the mouth seat endoporus 279 of connection jaws seat 275 is suitable for reading mouth seat flange 278, connection jaws seat 275 has endoporus shoulder block 222 bottom mouth seat endoporus 279, endoporus shoulder block 222 center have wiring through hole 223 with Between mouth seat endoporus 279, there is axiality；Gland through hole 237 and the screw on mouth seat flange 278 is had in gland flange 217 outer rim Corresponding, the inner face of gland flange 217 has between gland boss 239 and mouth seat endoporus 279 for matched in clearance；Gland flange 217 centers have the inner external screw thread of gland inner bolt hole 238 and pin interfaces 250 to match；Endoporus shoulder block 222 and gland boss 239 Between have the first pad 219 successively, seal hole circle 267 and second pad 218；First pad 219 is placed on mouth seat endoporus 279 end Portion againsts endoporus shoulder block 222, then is sequentially placed into sealing hole circle 267 and the second pad 218, by convex for the gland in gland flange 217 Platform 239 is directed at mouth seat endoporus 279, and two gland bolts 288 pass through the gland through hole 237 in gland flange 217 outer rim and mouth seat Screw on flange 278 is tightened so that sealing hole is airtight after enclosing 267 compressive deformations holds cable 255 tightly.Above-mentioned outlet structure is fitted For the outlet of flameproof motor, have that safe and reliable to operation, installation and debugging are convenient, save air compressor machine inner space, winding displacement The advantages such as convenience.

6, the outer bearing of molybdenum alloy hard wear-resistant coating props up and holds round 289 surfaces, the no inner-ring bearing of combination ceria oxide ceramics 260, corrosion resistance and wearability are all eager to excel more than 19.2% than conventional stainless steel material.

Claims

1. application ceria oxide ceramics mouse cage flameproof motor thread systems obtains fresh water method, and this system includes sea water preprocessing pond (703), low pressure suction pipe (711), low pressure lift pump (722), moisturizing suction pipe (712), high pressure make-up pump (714), pipeline threeway (769), reverse osmosis membrane (720) and thread pressure exchange promote pump, reverse osmosis membrane (720) both sides are respectively film intake antrum (718) and film water chamber (728), thread pressure exchange promotes has supercharging nipple (743), release nipple on pump (746), low pressure nipple (747) and pressure accumulation nipple (749), pressure accumulation nipple (749) and film intake antrum (718) it Between by film return duct (727) connect, film water chamber (728) be connected to desalination water go out pipe (729), film intake antrum (718) and pipeline Connected by high pressure sea water inlet pipe (719) between threeway (769) is suitable for reading；There is spiral case screw thread convex on the screw thread supercharging pump housing (730) inner chamber Platform (744), spiral case screw boss (744) has supercharging nipple (743), supercharging nipple (743) and pipeline threeway (769) being connected by conversion high-voltage tube (717) between side port, high pressure make-up pump (714) series connection is positioned on supplementary high-voltage tube (716), Supplement high-voltage tube (716) and be connected to pipeline threeway (769) end opening, low pressure lift pump (722) outlet and low pressure nipple (747) Between by low pressure line (723) connect, release nipple (746) is connected to drain line (726)；

Horizontal screw thread it is in series with permanent to stream device between described low pressure lift pump (722) import and described low pressure suction pipe (711) (713) normal thread it is in series with between, described high pressure make-up pump (714) import and described moisturizing suction pipe (712) permanent to stream Device (724), described thread pressure exchange promotes pump by boost in pressure helical pump part and thread pressure switch segment institute Composition, boost in pressure helical pump is driven by mouse cage III type flame-proof electric motor (710), in mouse cage III type flame-proof electric motor (710) The overall material of no inner-ring bearing (260) is silicon carbide ceramics, it is characterized in that: described mouse cage III type flame-proof electric motor (710) Assemble method and nipple pipeline Connection Step and thread pressure switch workflow and reverse osmosis seawater desalting work Process is as follows:

(1), mouse cage III type flame-proof electric motor (710) assemble method

Stator (251) is fixed on motor casing (210) endoporus, rotor (252) is fixed on motor rotary shaft (240) At major diameter and corresponding with stator (251) position, pass through on motor front cover plate (220) with eight front shroud screws (221) End cap casing through hole (226) match, by motor front cover with the casing end face screw on motor casing (210) front end face Plate (220) is fixed on the front end face of motor casing (210), on the Front Cover Bearing hole (224) of motor front cover plate (220) Fixed fore bearing (225) cylindrical, bearing leading portion axle (245) of the fixed motor rotary shaft of fore bearing (225) endoporus (240)； Match, by electronic with the casing end face screw on motor casing (210) rear end face with other eight back shroud screws (231) Machine back shroud (230) is fixed on motor casing (210) rear end face, on the bonnet centre bore (234) of motor back shroud (230) Fixed rear bearing (235) cylindrical, bearing back segment axle (243) of the fixed motor rotary shaft of rear bearing (235) endoporus (240)；

(2), nipple pipeline Connection Step:

(1), supercharging female adapter (743) connects, by conversion high-voltage tube (717) left end external screw thread and volute outlet boss (744) coating epoxy resin on the female thread on respectively, pairing connects so that conversion high-voltage tube (717) and volute outlet boss (744) constitute static airtight fixing between；

(2) as supercharging female adapter (743) connected mode, respectively release nipple (746), low pressure screw thread are connect Head (747) and pressure accumulation nipple (749) are threadeded with the pipeline of its both sides, position so that drain line (726) connect with pressure release runner (752) between constitute standstill seal is fixed, low pressure line (723) connects with low pressure runner (742) Between constitute standstill seal fix, film return duct (727) connect with pressure accumulation runner (751) between composition standstill seal fix；

(3), thread pressure switch workflow:

Exchanger rotor (740) uses and arranges pressure-exchange passage A-M on rotation round R position, respectively: passage A, logical Road B, channel C, passage D, passage E, passage F, passage G, passage H, passage J, passage K, passage L, passage M, adjacent two are led to Isolation gusset (262) is had to make to isolate between road；Import by low pressure and rotate domatic (922) and pressure accumulation importing rotation domatic (512) With the forward slanted angle of exchanger rotor (740) end face, and supercharging derive rotate domatic (912) and release derivation Rotation Slope The reversed dip angle of face (522) and exchanger rotor (740) end face, just can allow and uniquely transport in thread pressure switch segment Moving part exchanger rotor (740) rotates freely, and exchanger rotor (740) rotates with per second 20, completes pressure-exchange passage A-M Interior flow direction switches, it is achieved pressure-exchange；

(4), reverse osmosis seawater desalting work process:

Low pressure suction pipe (711) and moisturizing suction pipe (712) are inserted into 19 21 centimetres, pretreatment pool water surface (721) lower section, open Dynamic high-pressure make-up pump (714), is drawn the pre-treating seawater in sea water preprocessing pond (703) by moisturizing suction pipe (712), successively through mending After filling high-voltage tube (716), pipeline threeway (769) and high pressure sea water inlet pipe (719), it is injected among film intake antrum (718) direct Participate in permeable membrane desalinization；

When the pressure of the pre-treating seawater in film intake antrum (718) reaches 6.0 MPas (MPa), the wherein pressure accumulation that dams of 80.8% Sea water is dammed by reverse osmosis membrane (720), and wherein the process fresh water of 19.2% penetrates reverse osmosis membrane (720), enters film water chamber (728), among, go out pipe (729) through desalination water and be transported to the stand-by region of fresh water deposit；

Fail to pass through reverse osmosis membrane (720) 80.8% the pressure accumulation sea water that dams through film return duct (727), connect by pressure accumulation screw thread Head (749) enters into pressure accumulation runner (751) position, participates in the pressure accumulation sea water that dams of lower half among pressure-exchange passage A-M Experience wave raising and lowering, rotates to pressure release runner (752) position along with exchanger rotor (740) after pressure release, flows through and unload Pressure nipple (746), emits from drain line (726) or delivers to downstream processes；

Meanwhile, start low pressure lift pump (722), by low pressure suction pipe (711) draw in sea water preprocessing pond (703) pre- Reason sea water, successively after low pressure line (723) and low pressure nipple (747), is injected into low pressure runner (742) position, participates in The pre-treating seawater experience wave raising and lowering of the first half among pressure-exchange passage A-M, along with exchanger after supercharging Rotor (740) rotates to supercharging runner (741) position, flows through supercharging nipple (743) and pipeline threeway (769) successively, and After entering high pressure sea water inlet pipe (719), it is injected among film intake antrum (718) and directly participates in permeable membrane desalinization.