CN106277195A - Application silicon carbide ceramics disc type explosion separation motor plumb joint equipment method for desalting seawater - Google Patents

Abstract

The invention belongs to application apparatus and carry out method for desalting seawater, application silicon carbide ceramics disc type explosion separation motor plumb joint equipment method for desalting seawater, this equipment includes sea water preprocessing pond, low pressure suction pipe, low pressure lift pump, moisturizing suction pipe, high pressure make-up pump, pipeline threeway, reverse osmosis membrane and weld seam pressure-exchange promote pump, as improvement: disc type II type explosion separation motor and critical component assembling and pressure-exchange principle and reverse osmosis seawater desalting Engineering Task process are as follows: (one), disc type II type explosion separation motor assembles, (2), welding line joint pipeline connects: (three), critical component number of assembling steps, (4), weld seam pressure-exchange machine workflow, (5), reverse osmosis seawater desalting Engineering Task process；The present invention uses solder design structure, high pressure resistant, No leakage, particularly sets up weld seam pressure-exchange and promotes pump, compact conformation, and energy-saving effect is obvious, and the energy consumption obtaining unit fresh water reduces about 30%.

Description

Application silicon carbide ceramics disc type explosion separation motor plumb joint equipment method for desalting seawater

Technical field

The invention belongs to application apparatus and carry out method for desalting seawater, be specifically related in reverse osmosis seawater desalination system set up pressure Power exchange promotes the application silicon carbide ceramics disc type explosion separation motor plumb joint equipment method for desalting seawater of 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..

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 application apparatus carries out method for desalting seawater, joins Having weld seam pressure-exchange and promote pump, pressure-exchange efficiency can be made to improve, system structure is compacter, also eliminates switching valve Doors etc. control element, be finally reached and investment and daily management maintenance cost are greatly reduced.By the following technical solutions:

Application silicon carbide ceramics disc type explosion separation motor plumb joint equipment method for desalting seawater, this equipment include sea water preprocessing pond, Low pressure suction pipe, low pressure lift pump, moisturizing suction pipe, high pressure make-up pump, pipeline threeway, reverse osmosis membrane and weld seam pressure-exchange promote Pump, reverse osmosis membrane both sides are respectively film intake antrum and film water chamber, and weld seam pressure-exchange promotes has supercharging weld seam to connect on pump Head, release welding line joint, low pressure welding line joint and pressure accumulation welding line joint；Described supercharging welding line joint includes exporting welded tube chamfering With high-voltage tube chamfering and girth weld, become 44-46 degree angle between high-voltage tube chamfering with conversion high-voltage tube, export welded tube chamfering 44-46 degree angle is become with between volute outlet welded tube；

Vertical weld it is in series with permanent to stream device, described high pressure between described low pressure lift pump import and described low pressure suction pipe Side seam it is in series with permanent to stream device, described weld seam pressure-exchange elevator between make-up pump import and described moisturizing suction pipe Pump is made up of boost in pressure weld seam pump portion and weld seam pressure-exchange machine part, and boost in pressure weld seam pump is by disc type II type flame proof Motor drives, and the no inner-ring bearing entirety material in disc type II type explosion separation motor is silicon carbide ceramics, it is characterized in that: disc type II Type explosion separation motor and critical component assemble and pressure-exchange principle and reverse osmosis seawater desalting Engineering Task process as follows:

(1), disc type II type explosion separation motor assembles:

Rotor is arranged on rotor field spider, at the maximum gauge that rotor field spider is fixedly connected on machine shaft；Rear fixed Son is fixedly connected on the inner face of motor rear cover plate, and front stator is fixedly connected on the inner face of front motor cover plate, and motor turns Son is between rear stator and front stator；Equipped with bearing bonnet on motor rear cover plate；

Use line box dividing plate that junction box seat is isolated into two first cavitys completely enclosed along pipe range direction and the second cavity Technical scheme, connects on termination by interior connecing in lead-in wire is connected on connection bolt, and external lead wire passes through on fairlead seat successively After runners circular hole and sealing hole circle on the corresponding external termination being connected to be positioned on the connection bolt of the second cavity, due to wiring The two ends of bolt lay respectively in two airtight cavitys, it is possible to be effectively isolated the leakage of electric spark；With in special six In runners on the spanner insertion fairlead seat of angle among hexagonal, fairlead seat external screw thread is tightened with line box end cap female thread, makes Airtight external lead wire is held tightly after must sealing hole circle compressive deformation；

(2), welding line joint pipeline connects:

(1), supercharging welding line joint connect, outlet welded tube chamfering is alignd with high-voltage tube chamfering, is exporting welded tube chamfering and high pressure Carry out butt welding between pipe chamfering, produce girth weld, between conversion high-voltage tube and volute outlet welded tube, constitute the airtight company of weld seam Connect fixing；

(2) as supercharging welding line joint connected mode, respectively by release welding line joint, low pressure welding line joint and pressure accumulation weld seam Joint carries out butt welding with the pipeline of its both sides, position so that constitute weld joint close between drain line and pressure release flow passage Close that connection is fixing, constitute weld seam airtight connection between low pressure line and low pressure flow passage and fix, film return duct and pressure accumulation runner Constitute weld seam airtight connection between connection to fix；

(3), critical component number of assembling steps:

(1) protecgulum hollow axle is installed:

Hollow axle on protecgulum hollow axle is regulated interference fits at the nearly outer end, Front Cover Bearing hole on step and front motor cover plate, And the hollow pillow hole passed through on protecgulum hollow axle with hollow axle screw matches with the protecgulum screw on front motor cover plate, by front Hollow axle flange on lid hollow axle is close to fix with the protecgulum concave station face on front motor cover plate；

(2) no inner-ring bearing is installed:

First put among impeller stepped hole and cross stepped hole escape by impeller adjusting ring matched in clearance to be attached at the bottom of bearing hub bore On face；Again slight for the bearing outer ring on no inner-ring bearing interference fit is pressed among the impeller stepped hole on impeller bearing hub, Again impeller bore snap ring specific purpose tool is put into impeller draw-in groove so that bearing outer ring both sides against impeller bore snap ring respectively With impeller adjusting ring；

(3) connection between impeller bearing hub and machine shaft:

The bearing outer ring being fixed on impeller bearing hub is inserted in together with cylinder needle roller and is fixed on outer bearing and props up and hold round upper one Part, slowly rotates booster pump impeller so that the impeller splined hole on impeller bearing hub and the axle spline segment pair on machine shaft Standard matches, and continues to push against impeller bearing hub and finally impeller bore snap ring 291 specific purpose tool is put into bearing hub draw-in groove 298 In；

First take after step backing-up screw passes through axial positioning retainer ring centre bore and match with the axle head screw on machine shaft；

Pass through with five back-up ring screws again after the positioning retainer ring through hole on axial positioning retainer ring with the locking spiral shell on impeller bearing hub Matching in hole, is also fastened to by axial positioning retainer ring on impeller bearing hub outer face；

Finally pass through the positioning retainer ring through hole on the through hole on locking catch and axial positioning retainer ring successively with a back-up ring screw After also match with the locking screw on impeller bearing hub；

(4), weld seam pressure-exchange machine workflow:

Exchanger rotor use on rotation round R position, arrange pressure-exchange passage A-M, 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 it Between have isolation gusset make isolate；Rotation is imported domatic domatic with exchanger rotor end-face just with pressure accumulation importing rotation by low pressure To slanted angle, and supercharging is derived and is rotated the domatic and domatic reversed dip folder with exchanger rotor end-face of release derivation rotation Angle, just can allow unique movement parts exchanger rotor in weld seam pressure-exchange machine part freely rotate, and exchanger rotor is with per second 22 rotate, and complete flow direction switching in pressure-exchange passage A-M, it is achieved pressure-exchange；

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

When the pre-treating seawater in pressure-exchange passage A-M is respectively at and supercharging runner and pressure accumulation together with the pressure accumulation sea water that dams During runner same position, the pressure accumulation sea water that dams of 5.8 MPas (MPa) pushes pre-treating seawater, is injected up supercharging center round； Possessed the pre-treating seawater of 5.8 MPas (MPa) by exchange pressure to be pressurized impeller of pump by booster pump suction inlet and suck and power by centrifugation It is pressurized to 6.0 MPas (MPa) and flows through volute outlet welded tube and supercharging welding line joint successively, be finally incorporated to high pressure sea water inlet pipe；

(5), reverse osmosis seawater desalting Engineering Task process:

Low pressure suction pipe and moisturizing suction pipe are inserted into below pretreatment pool water surface 19-21 centimetre, start high pressure make-up pump, by mending Water absorption tube draws the pre-treating seawater in sea water preprocessing pond, successively through supplementing high-voltage tube, pipeline threeway and high pressure sea water inlet pipe After, it is injected among film intake antrum and directly participates in permeable membrane desalinization；

When the pressure of the pre-treating seawater in film intake antrum reaches 6.0 MPas (MPa), the wherein pressure accumulation sea water that dams of 80.2% Being dammed by reverse osmosis membrane, wherein the process fresh water of 19.8% penetrates reverse osmosis membrane, enters among film water chamber, goes out pipe through desalination water It is transported to fresh water and lays in stand-by region；

Fail to pass through reverse osmosis membrane 80.2% the pressure accumulation sea water that dams through film return duct, enter into storage by pressure accumulation welding line joint Position, baric flow road, participates in the pressure accumulation sea water experience wave raising and lowering of damming of lower half among pressure-exchange passage A-M, Rotate to pressure release runner position along with exchanger rotor after pressure release, flow through release welding line joint, emit from drain line；

Meanwhile, start low pressure lift pump, low pressure suction pipe draw the pre-treating seawater in sea water preprocessing pond, successively through low Behind pressure pipe road and low pressure welding line joint, it is injected into low pressure runner position, participates in the pre-of the first half among pressure-exchange passage A-M Process sea water experience wave raising and lowering, rotate to supercharging runner position along with exchanger rotor after supercharging, flow through successively Supercharging welding line joint and pipeline threeway, after being incorporated to high pressure sea water inlet pipe, be injected among film intake antrum and directly participate in permeable membrane sea Water is desalinated.

Beneficial effects of the present invention:

1, the present invention uses solder design structure, high pressure resistant, No leakage, particularly sets up weld seam pressure-exchange and promotes pump, pressure The booster pump suction inlet that power promotes on weld seam pump portion is directly directed at, no with the supercharging center round in weld seam pressure-exchange machine part But compact conformation；The reverse osmosis membrane Seawater Desalination Project setting up weld seam pressure-exchange lifting pump carries with not having weld seam pressure-exchange The reverse osmosis membrane Seawater Desalination Project rising pump compares, and the energy consumption obtaining unit fresh water reduces about 30%.

And, low pressure lift pump only needs to carry the pressure accounting for the pre-treating seawater participating in reverse osmosis membrane amount of work 80.2% High to 0.2 MPa (MPa), so that it may to complete there is the pressure accumulation sea water that dammed of 5.8 MPas (MPa) to realize pressure in film return duct Exchange, it is ensured that disc type II type explosion separation motor only needs the pressure of the pre-treating seawater by accounting for amount of work 80.2% again from 5.8 MPas (MPa) 6.0 MPas (MPa) are brought up to；Account in the segmentation raising of the pre-treating seawater participating in reverse osmosis membrane amount of work 80.2% Pressure differential only has 0.46 MPa (MPa)；

The acquisition fresh water penetrating reverse osmosis membrane accounts for participation reverse osmosis membrane amount of work 19.8%, accounts for participation reverse osmosis membrane amount of work The pre-treating seawater of 19.8%, through high pressure make-up pump, directly brings up to 6.0 MPas (MPa) from atmospheric pressure, and energy-saving effect is obvious.

2, having impeller stepped hole and impeller splined hole on booster pump impeller, there are axle spline segment, protecgulum in overhanging section of outer end of rotating shaft Hollow axle passes through motor-shaft extending hand-hole and is positioned at weld seam supercharging pump housing spiral case, and outer bearing props up to hold round and is combined with no inner-ring bearing, No inner-ring bearing supports impeller bearing hub, and hollow axle stepped hole, axle spline segment and impeller splined hole phase are passed through in overhanging section of rotating shaft Overhanging for a rotating shaft section moment of torsion is passed to booster pump impeller by engagement mutually；Said structure achieves machine shaft and fore bearing and rear axle Hold and be only subjected to pure torsion, and radial force produced by spline engagement is born by no inner-ring bearing completely, before being only operated at On lid hollow axle, it is entirely avoided radial force is born in overhanging section of the rotating shaft on machine shaft, improve disc type II type explosion separation motor Service life；

Weld seam pressure-exchange machine part controls without elements such as the driving of any external electrical equipment and switch valves, imports rotation by low pressure Turn the domatic and domatic forward slanted angle with exchanger rotor of pressure accumulation importing rotation, and supercharging is derived and rotated domatic and pressure accumulation Import and rotate the domatic reversed dip angle with exchanger rotor, just can allow in weld seam pressure-exchange machine part uniquely movement parts Exchanger rotor rotates freely, complete flow direction switching in pressure-exchange passage A-M, it is achieved pressure-exchange, it is to avoid use The contingency that any electrical equipment control may cause occurs.

3, the disc type II type explosion separation motor in the present invention use line box dividing plate junction box seat is isolated into two along pipe range The first cavity that direction is completely enclosed and the technical scheme of the second cavity, connect end by interior connecing in lead-in wire is connected on connection bolt On head, after external lead wire passes through the runners circular hole on fairlead seat successively and seals hole circle, correspondence is connected to be positioned at the second cavity Connection bolt on external termination on, owing to the two ends of connection bolt lay respectively in two airtight cavitys, it is possible to It is effectively isolated the leakage of electric spark.Among hexagonal in the runners on special inner hexagon spanner insertion fairlead seat, will lead-in wire Hole seat external screw thread is tightened with line box end cap female thread so that sealing hole is airtight after enclosing compressive deformation holds external lead wire tightly.Online box End cap female thread baseplane is provided with sealing hole circle and carries out secondary isolation electric spark, avoids electric spark to reveal further, and flame proof is imitated The best, security performance is high.

Accompanying drawing explanation

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

Fig. 2 is the profile that weld seam pressure-exchange promotes the boost in pressure weld seam pump portion in pump.

Fig. 3 is the profile that weld seam pressure-exchange promotes the weld seam pressure-exchange machine part in pump.

Fig. 4 is the operation principle schematic diagram of weld seam pressure-exchange machine 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, interchange channel is radius, the fluid pressure energy exchange schematic flow sheet launched along rotation round R.

When Fig. 9 is pressure-exchange passage A-M rotation 1/12 circle in Fig. 8, when namely have rotated a channel position, respectively Two kinds of liquid present positions of 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 the independent enlarged drawing of front motor cover plate 220 in Fig. 2.

Figure 25 is the independent enlarged drawing of motor rear cover plate 230 in Fig. 2.

Figure 26 is the junction box seat 213 position enlarged local section schematic diagram in Fig. 2.

Figure 27 is fairlead seat 211 side view in Figure 26.

Figure 28 is the permanent profile (forward circulation status) crossing axial line to stream device 724 of the vertical weld in Fig. 1.

Figure 29 is that the vertical weld in Figure 28 is permanent is in reverse blocking state to stream device 724.

Figure 30 is the S-S sectional view in Figure 28.

Figure 31 is the upright spool 110 in Figure 28 or Figure 32.

Figure 32 is the cylindrical duct 120 in Figure 28 or Figure 32.

Figure 33 is the permanent profile forward circulation status crossing axial line to stream device 713 of the side seam in Fig. 1.

Figure 34 is that the side seam in Figure 33 is permanent is in reverse blocking state to stream device 713.

Figure 35 is W-W sectional view in Figure 33.

Figure 36 is plumb joint valve body 630 axonometric chart in Figure 33 or Figure 37.

Figure 37 is that rotation spool 620 axonometric chart in Figure 33 represents annular flow road junction 622.

Figure 38 is that rotation spool 620 axonometric chart in Figure 34 represents circular flow channel mouth 621.

Figure 39 is the profile at supercharging welding line joint 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 28, Figure 33 and Figure 39, apply silicon carbide ceramics disc type Explosion separation motor plumb joint equipment method for desalting seawater, this equipment 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 weld seam pressure-exchange elevator Pump, reverse osmosis membrane 720 both sides are respectively film intake antrum 718 and film water chamber 728, and weld seam pressure-exchange promotes has supercharging on pump Welding line joint 743, release welding line joint 746, low pressure welding line joint 747 and pressure accumulation welding line joint 749, pressure accumulation welding line joint 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 Be connected by high pressure sea water inlet pipe 719 between mouth right with pipeline threeway 769, supercharging welding line joint 743 and pipeline threeway 769 end opening it Between connected by conversion high-voltage tube 717, high pressure make-up pump 714 exports between the left mouth of pipeline threeway 769 by supplementary high-voltage tube 716 even Connecing, low pressure lift pump 722 exports and is connected by low pressure line 723 between low pressure welding line joint 747, and release welding line joint 746 is even Then drain line 726；

Described supercharging welding line joint 743 includes exporting welded tube chamfering 794 and high-voltage tube chamfering 796 and girth weld 795, high Between pressure pipe chamfering 796 and conversion high-voltage tube 717 in angle of 45 degrees, between outlet welded tube chamfering 794 and volute outlet welded tube 744 In angle of 45 degrees；

Vertical weld it is in series with permanent to stream device 724 between described low pressure lift pump 722 import and described low pressure suction pipe 711, Side seam it is in series with permanent to stream device 713 between described high pressure make-up pump 714 import and described moisturizing suction pipe 712, described Weld seam pressure-exchange promote pump be made up of boost in pressure weld seam pump portion and weld seam pressure-exchange machine part, boost in pressure Weld seam pump is driven by disc type II type explosion separation motor 710；

Described weld seam pressure-exchange machine part 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 welding line joint 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 welding line joint 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 welding line joint 749 on trap water end cap 754 cylindrical, trap water end cap 754 unloads pressure welding on outer face Sew up 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 welding line joint 749 imports with pressure accumulation to rotate and is connected by pressure accumulation runner 751 between domatic 512, release Welding line joint 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 weld seam pump portion includes the weld seam supercharging pump housing 730 and booster pump impeller 770, and with described disc type II type explosion separation motor 710 composition one, the weld seam supercharging pump housing 730 inner chamber has volute outlet welded tube 744, the weld seam supercharging pump housing Described supercharging welding line joint 743, the weld seam supercharging pump housing 730 front end face is had to have booster pump suction inlet 731 respectively in 730 radial direction gabarits With overall fixing threaded hole 772, supercharging ring flange 773 having through hole corresponding with overall fixing threaded hole 772, trip bolt passes through increasing Through hole on pressure flange dish 773 coordinates with overall fixing threaded hole 772, and described supercharging center round 732 is directed at supercharging pumping Mouth 731；

There is pump housing rear end face 200 on the weld seam supercharging pump housing 730, pump housing rear end face 200 has motor-shaft extending hand-hole 285 and electricity respectively Machine fixing threaded hole 204, front motor cover plate 220 outer rim has front shroud flange 201, front shroud flange 201 has front shroud through hole 207, there is motor seal pad 202 between front shroud flange 201 and pump housing rear end face 200, six motor flange screws 205 are successively It is connected fastening with motor fixing threaded hole 204 after passing through the sealing gasket through hole on front shroud through hole 207 and motor seal pad 202；

Front motor cover plate 220 is fixed on motor fixing threaded hole 204, and front motor cover plate 220 is fixed with protecgulum hollow axle 280, There are hollow axle stepped hole 284 and outer bearing to prop up on protecgulum hollow axle 280 and hold round 289, hollow axle stepped hole 284 and overhanging section of rotating shaft Organic sealing assembly 248 between 246；

There are impeller bearing hub 290, protecgulum hollow axle 280 to pass through motor-shaft extending hand-hole 285 on booster pump impeller 770 and are positioned at weld seam increasing In press pump body 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 impeller Bearing hub 290, rotating shaft passes through hollow axle stepped hole 284 for overhanging section 246, and rotating shaft delivers torque to booster pump leaf for overhanging section 246 Wheel 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 0.58 millimeter；Molybdenum alloy The material of hard wear-resistant coating is elementary composition by following percentage by weight: Mo:11%, Ti:4.3%, W:3.5%, Cr: 3.2%, Ni:2.7%, Nb:2.5%, C:1.2%, surplus is Fe and inevitable impurity；The percentage by weight of described impurity contains Amount is: P is 0.05%, Sn is 0.04%, Si is 0.17%, Mn is 0.024%, S is 0.009%, P is 0.014%；Molybdenum alloy is hard The material Specifeca tion speeification of matter wear-resistant coating is: Rockwell hardness HRC value is 62；

The overall material of described no inner-ring bearing 260 is silicon carbide ceramics, this silicon carbide ceramics with SiC (carborundum) as base Material, is equipped with mineralizer MgO (magnesium oxide), BaCO₃(brium carbonate) and bonding clay form, and the percentage by weight of its each component Content is SiC:95.2%, MgO:1.68%, BaCO₃: 1. 47%, remaining is bonding clay；As improvement: disc type II type every Quick-fried motor 710 and critical component assemble and pressure-exchange principle and reverse osmosis seawater desalting Engineering Task process as follows:

(1), disc type II type explosion separation motor 710 assembles:

Being arranged on rotor field spider 232 by rotor 250, rotor field spider 232 is fixedly connected on the maximum on machine shaft 240 At diameter；Rear stator 252 is fixedly connected on the inner face of motor rear cover plate 230, and front stator 251 is fixedly connected on front motor cover On the inner face of plate 220, rotor 250 is between rear stator 252 and front stator 251；Equipped with axle on motor rear cover plate 230 Hold bonnet 233；

Front motor cover plate 220 is fixed on motor by the protecgulum housing hole 239 that eight protecgulum screws 221 pass through on front motor cover plate 220 Shell 210 front end face, eight rear cover screws 231 pass through the bonnet housing hole 238 on motor rear cover plate 230 by motor rear cover plate 230 It is fixed on motor housing 210 rear end face；Bearing bonnet 233 the inner is stretched into the bonnet dead eye 234 on motor rear cover plate 230 and supports Live rear bearing 235；

Use line box dividing plate 212 that junction box seat 213 is isolated into two first cavitys 278 completely enclosed along pipe range direction and the The technical scheme of two cavitys 279, connects on termination 226 by interior connecing in lead-in wire 288 is connected on connection bolt 217, external lead wire 255 pass through the runners circular hole 223 on fairlead seat 211 successively is connected to be positioned at the second cavity 279 with sealing correspondence after hole encloses 267 On the interior external termination 236 on connection bolt 217, owing to the two ends of connection bolt lay respectively in two airtight cavitys, It is possible to be effectively isolated the leakage of electric spark；By hexagonal in the runners on special inner hexagon spanner insertion fairlead seat 211 Among 237, fairlead seat 211 external screw thread is tightened with line box end cap 214 female thread so that after 267 compressive deformations are enclosed in sealing hole Airtight hold external lead wire 255 tightly；

(2), welding line joint pipeline connects:

(1), supercharging welding line joint 743 connect, outlet welded tube chamfering 794 is alignd with high-voltage tube chamfering 796, outlet welded tube fall Carrying out butt welding between angle 794 and high-voltage tube chamfering 796, produce girth weld 795, conversion high-voltage tube 717 welds with volute outlet Constitute weld seam airtight connection between pipe 744 to fix；

(2) as supercharging welding line joint 743 connected mode, respectively by release welding line joint 746, low pressure welding line joint 747 and Pressure accumulation welding line joint 749 carries out butt welding with the pipeline of its both sides, position so that drain line 726 and pressure release runner 752 Between connection, composition weld seam airtight connection is fixed, low pressure line 723 constitutes weld seam airtight connection between connecting with low pressure runner 742 Fixing, film return duct 727 constitutes weld seam airtight connection between connecting with pressure accumulation runner 751 to be fixed；

(3), critical component number of assembling steps:

(1) protecgulum hollow axle 280 is installed:

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

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

First stepped hole escape 293 is put among impeller stepped hole 296 and crossed to impeller adjusting ring 292 matched in clearance and be attached to axle Hold on 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 hub 290 On impeller stepped hole 296 among, then impeller bore snap ring 291 specific purpose tool is put into impeller draw-in groove 298 so that bearing Both sides, outer ring 269 against impeller bore snap ring 291 and impeller adjusting ring 292 respectively；

(3) connection between impeller bearing hub 290 and machine 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 turns with motor Axle spline segment 249 alignment on axle 240 matches, and continues to push against impeller bearing hub 290 so that the cylinder on bearing outer ring 269 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 screw on machine shaft 240 247 match so that the axially positioning retainer ring 270 two parallel ribs 273 and axle spline segments 249 on step backing-up screw 274 One millimeter of axially free amount is had between outer face；

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；

(4), weld seam pressure-exchange machine 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 weld seam pressure-exchange machine part is uniquely moved Part exchanger rotor 740 rotates freely, and exchanger rotor 740 rotates with per second 22, 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 be respectively at together with the pressure accumulation sea water that dams with low pressure runner 742 and During pressure release runner 752 same position, the pressure accumulation sea water that dams that the pre-treating seawater of 0.2 MPa (MPa) pushes atmospheric pressure is downward Flow 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 volute outlet welded tube 744 and supercharging welding line joint 743 successively, Finally it is incorporated to high pressure sea water inlet pipe 719；

(5), reverse osmosis seawater desalting Engineering Task 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 80.2% Water is dammed by reverse osmosis membrane 720, and wherein the process fresh water of 19.8% 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 80.2% the pressure accumulation sea water that dams through film return duct 727, by pressure accumulation welding line joint 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 welding line joint 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 welding line joint 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 welding line joint 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；

Owing to exchanger rotor 740 rotates with per second 22, the pre-treating seawater among pressure-exchange passage A-M and the pressure accumulation that dams Between sea water, contact surface can produce blending, learns that blending amount only accounts for participation reverse osmosis membrane 720 amount of work 1.2% after tested；Set up Weld seam pressure-exchange promotes pump, and the pressure accumulation sea water that dams of fail to pass through reverse osmosis membrane 720 80.2% obtains efficient recovery profit With, reach the effect of energy-saving and emission-reduction.

In embodiment:

One, set especially: no inner-ring bearing 260 selects RNA type separate type no inner-ring bearing structure.

Two, in Fig. 2, Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25, Figure 26 and Figure 27, described disc type II type flame proof Motor 710 includes motor housing 210, front motor cover plate 220, motor rear cover plate 230, rotor field spider 232, machine shaft 240, front Bearing 225, rear bearing 235, permanent magnet 218, front stator 251 and rear stator 252；Lead-in wire 288 outlet is connect in motor housing 210 Place is fixedly connected with junction box seat 213, wired box end cap 214 on junction box seat 213 outer end, and fairlead seat 211 is positioned at line box end On lid 214, external lead wire 255 passes through fairlead seat 211；Front stator 251 and rear stator 252 are by stator core 275 and armature Winding 265 is formed, and rotor 250 is by six rotor cores 219 and is arranged on the permanent magnetism between adjacent rotor iron core 219 Body 218 is formed, and rotor 250 is fixedly mounted on rotor field spider 232, and rotor field spider 232 is movably fixed to machine shaft At maximum gauge on 240；Rear stator 252 is fixedly connected on the inner face of motor rear cover plate 230, and front stator 251 is fixing even Being connected on the inner face of front motor cover plate 220, rotor 250 is between rear stator 252 and front stator 251；Motor rear cover Equipped with bearing bonnet 233 on plate 230, bearing bonnet 233 is fixed by screws on motor rear cover plate 230, in bearing bonnet 233 End stretches into the bonnet dead eye 234 on motor rear cover plate 230 and props up rear bearing 235；

Junction box seat 213 intracavity arranges wired box dividing plate 212, and junction box seat 213 is isolated into two along pipe range by line box dividing plate 212 The first cavity 278 and the second cavity 279 that direction is completely enclosed, line box dividing plate 212 is provided with three wiring spiral shells spaced apart Bolt 217, connection bolt 217 wears connection box dividing plate 212, and connection bolt 217 one end overhangs at the first cavity 278, connection bolt 217 The other end overhangs in the second cavity 279, inside connects lead-in wire 288 correspondences and is connected to be positioned at the connection bolt 217 of the first cavity 278 Connect on termination 226；Female thread on line box end cap 214 matches with the external screw thread on fairlead seat 211, line box end cap It is fixing by the extruding of fairlead seat 211 inner face that 214 female thread baseplanes are provided with sealing hole circle 267, and external lead wire 255 is worn successively More the runners circular hole 223 on fairlead seat 211 and sealing hole are corresponding after enclosing 267 is connected to be positioned at the wiring of the second cavity 279 On external termination 236 on bolt 217；

Fixed fore bearing 225 cylindrical, the fixed motor of fore bearing 225 endoporus on the Front Cover Bearing hole 224 of front motor cover plate 220 The bearing leading portion axle 245 of rotating shaft 240；Rear cover screw 231 is had to be fixed on motor housing 210 rear end face on motor rear cover plate 230, electricity Fixed rear bearing 235 cylindrical, the fixed machine shaft of rear bearing 235 endoporus on the bonnet dead eye 234 of machine back shroud 230 The bearing back segment axle 243 of 240；

There is free spindle flanges 807 on protecgulum hollow axle 280, have outer bearing to prop up outside hollow axle flange 807 and hold round 289 and hollow axle Through hole 804, has hollow axle stepped hole 284 and hollow axle regulation step 882, hollow axle regulation step inside hollow axle flange 807 It is interference fits between 882 cylindricals and Front Cover Bearing hole 224, hollow axle regulation step 882 has sealing ring draw-in groove 809, seals There is hollow axle sealing ring 209 on circle draw-in groove 809, between hollow axle sealing ring 209 and Front Cover Bearing hole 224, constitute static seal；Electricity Composition static seal between electricity secret seal 208 and front motor cover plate 220 is had on machine shell 210 end face；Hollow axle stepped hole 284 with Organic envelope dismounting groove 808 between hollow axle through hole 804, it is simple to specific purpose tool demountor sealing assembly 248.

Three, in Figure 28, Figure 29, Figure 30, Figure 31 and Figure 32, described vertical weld is permanent to be included under plumb joint to stream device 724 Hemispherical Shell 190, plumb joint upper hemispherical shell 180, cylindrical duct 120 and upright spool 110, cylindrical duct 120 has pipe cylindrical 123 He Pipe inner circle 121 and pipe upper surface 128 and pipe lower surface 129,

Annulus 189 and upper interior hemisphere face 187 and circular hole outlet 185 on flange is had on described plumb joint upper hemispherical shell 180, There is outlet welding chamfering 181 circular hole outlet 185 upper end；Annulus 198 He under flange is had on described plumb joint lower hemisphere shell 190 Hemisphere face 196 and circular hole inlet tube 195 in lower, circular hole inlet tube 195 lower end has import to weld chamfering 191；

There are 12 groups of valve casing bolt and nut groups 140 airtight between annulus 189 on annulus 198 and described flange under described flange Fixing；Low pressure suction pipe 711 upper end has welding line joint to weld chamfering 191 joint with import and has into water girth weld 139 composition weldering Connect sealing；Low pressure line 723 lower end also has welding line joint to weld chamfering 181 joint with outlet and has water outlet girth weld 138 structure Become welded seal；

Having recessed circular groove 193 and low groove baseplane 194 on described lower interior hemisphere face 196, recessed circular groove 193 inner circle is with described Pipe cylindrical 123 between be interference fits, between described low groove baseplane 194 and described pipe lower surface 129 be It is in sealing contact；

Having fovea superior circular groove 183 and upper groove baseplane 184 on described upper interior hemisphere face 187, fovea superior circular groove 183 inner circle is with described Pipe cylindrical 123 between be interference fits, between described upper groove baseplane 184 and described pipe upper surface 128 be It is in sealing contact；

Sphere on spool cylindrical 112, spool cavity wall 111, spool lower peripheral surface 115 and spool is had on described upright spool 110 117, spool lower peripheral surface 115 has spool annular aperture 119, spool has on sphere 117 spool round shape hole 118, spool cylindrical 112 Inner side is cylindrical medial wall 113；

Being clearance fit between described pipe inner circle 121 and spool cylindrical 112, spool lower peripheral surface 115 subsequent corrosion is with described Lower interior hemisphere face 196 subsequent corrosion identical coincide, sphere 117 subsequent corrosion and described upper interior hemisphere on described spool Face 187 subsequent corrosion is identical coincide；It is ring-type six between described spool annular aperture 119 and described spool round shape hole 118 Sheet connects muscle runner 157 and connects, and described ring-type six tracts of company's muscle runners 157 have six gussets 114 of water conservancy diversion；Described water conservancy diversion six Sheet gusset 114 medial surface is fixedly connected on described spool cavity wall 111, and six gusset 114 lateral surface of described water conservancy diversion are solid Surely it is connected on described cylindrical medial wall 113；Described spool cavity wall 111 lower end is connected to spool lower peripheral surface 115, spool Lower peripheral surface 115 has technique screw 151 in the heart, interior hexagonal blocking 154 has blocking external screw thread 152, blocking external screw thread 152 and work Between skill screw 151, close fit forms spool internal cavity 156.

Single leaf thickness on six gussets 114 of described water conservancy diversion is the 1/13 to 1/ of described spool round shape hole 118 diameter 14, a length of 341 to 344 millimeters of six gussets 114 of described water conservancy diversion；Have on sphere 117 on described spool on spool and seal Groove 177 fixed spool upper sealing ring 178, on described spool, seal groove 177 diameter is more than in described spool round shape hole 118 Footpath, described spool round shape hole 118 internal diameter is equal with described circular hole outlet 185 internal diameter；On described spool lower peripheral surface 115 There are spool lower seal groove cavity 155, spool lower seal groove cavity 155 fixed spool lower sealing ring 159, described spool lower seal groove cavity 155 Diameter is less 20 millimeters than described spool annular aperture 119 annular diameters, and described spool lower seal groove cavity 155 diameter is than described circle Big 42 millimeters of hole inlet tube 195 flow diameter.

Four, in Figure 33, Figure 34, Figure 35, Figure 36, Figure 37 and Figure 38, described side seam is permanent includes cylinder to stream device 713 Axle 610, rotation spool 620, plumb joint valve body 630, trip bolt 670 and outer end cap 690, on described plumb joint valve body 630 There are valve body-side plane 636, valve body inletpiston hard layer 638 and valve outlet plane hard layer 639 and outlet elbow 631 and Import bend pipe 632；There are elbow pipe welding termination 637 and union elbow chamfering in outlet elbow 631 and import bend pipe 632 outer end 635；

The described welding line joint in moisturizing suction pipe 712 right end and the elbow pipe welding termination 637 on import bend pipe 632 and curved Pipe joint chamfering 635 is docked, and constitutes import welded seal and fixes；The described welding line joint on supplementary high-voltage tube 716 left end head Dock with the elbow pipe welding termination 637 on outlet elbow 631 and union elbow chamfering 635, constitute outlet welded seal and fix；

Described outlet elbow 631 the inner is connected to valve body inletpiston hard layer 638, and described import bend pipe 632 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；

Enclosing cover axis hole 691 on two described outer end caps 690, enclosing cover axis hole 691 has dead axle seal groove 659, and 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；

Six 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 Six 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 six Sheet muscle 644 is connected；Single leaf thickness is circular flow channel mouth 621 diameter the 1/15 to 1/16 of described six muscle 644 of connection.

Five, hollow axle regulation step 882 cylindrical and outer bearing prop up and hold round the axiality between 289 with six grades of tolerance grades Relation；There is protecgulum concave station face 229 on front motor cover plate 220 lateral surface, protecgulum concave station face 229 has six protecgulum screws 227, empty There are six hollow pillow holes 805 corresponding with protecgulum screw 227 on spindle flanges 807；Hollow axle screw 228 passes through hollow pillow Matching with protecgulum screw 227 in hole 805, is fixed on by protecgulum hollow axle 280 on protecgulum concave station face 229；Protecgulum concave station face 229 with There is between Front Cover Bearing hole 224 the perpendicularity relation of six grades of tolerance grades；Hollow axle regulation step on protecgulum hollow axle 280 882 the inners are stretched into Front Cover Bearing hole 224 and prop up fore bearing 225；Between protecgulum hollow axle 280 outer end and impeller bearing hub 290 There is a no inner-ring bearing 260；

Impeller bearing hub 290 inner end has impeller stepped hole 296, impeller stepped hole 296 to have impeller splined hole 294, leaf on bottom surface There is locking screw 297 on wheel bearing hub 290 outer face, 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 impeller on position Adjusting ring 292, bearing outer ring 269 two ends against impeller bore snap ring 291 and impeller adjusting ring 292 respectively；

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 impeller platform In hole, rank 296, cylinder needle roller 268 props up at bearing outer ring 269 and outer bearing and holds round between 289；

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.

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

1, the present invention uses solder design structure, high pressure resistant, No leakage, particularly sets up weld seam pressure-exchange and promotes pump, pressure The booster pump suction inlet 731 that power promotes on weld seam pump portion is direct with the supercharging center round 732 in weld seam pressure-exchange machine part Alignment, not only compact conformation；And, set up weld seam pressure-exchange and promote reverse osmosis membrane Seawater Desalination Project and the not weldering of pump Seam pressure-exchange promotes the reverse osmosis membrane Seawater Desalination Project of pump and compares, and the energy consumption obtaining unit fresh water reduces about 30%. And, low pressure lift pump 722 only needs to improve the pressure accounting for the pre-treating seawater participating in reverse osmosis membrane 720 amount of work 80.2% To 0.2 MPa (MPa), so that it may complete with film return duct 727 in have 5.8 MPas (MPa) dammed pressure accumulation sea water realize pressure Power exchanges, it is ensured that disc type III type cooling tube motor 710 only need the pressure of the pre-treating seawater by accounting for amount of work 80.2% again from 5.8 MPas (MPa) brings up to 6.0 MPas (MPa)；Account for participate in reverse osmosis membrane 720 amount of work 80.2% pre-treating seawater point Pressure differential in Duan Tigao 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 19.8%, accounts for participation reverse osmosis membrane 720 The pre-treating seawater of amount of work 19.8%, 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 union pressure-exchange lifting pump promotes pump with not having union 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 motor-shaft extending hand-hole 285 and is positioned at the weld seam supercharging pump housing 730 spiral case, and outer bearing props up Holding round and be combined with no inner-ring bearing 260 on 289, no inner-ring bearing 260 supports impeller bearing hub 290, and rotating shaft is worn for overhanging section 246 More hollow axle stepped hole 284, axle spline segment 249 and impeller splined hole 294 engage each other and are passed to by overhanging for rotating shaft section of 246 moments of torsion Booster pump impeller 770；Said structure achieves machine shaft 240 and fore bearing 225 and rear bearing 235 is only subjected to pure torsion Square, and radial force produced by spline engagement is born by no inner-ring bearing 260 completely, is only operated at protecgulum hollow axle 280 On, it is entirely avoided the rotating shaft on machine shaft 240 bears radial force for overhanging section 246, improves disc type II type explosion separation motor 710 Service life；

Weld seam pressure-exchange machine part 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, just can allow weld seam pressure-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, the disc type II type explosion separation motor 710 in the present invention use line box dividing plate 212 junction box seat 213 is isolated into two Individual first cavity 278 and the technical scheme of second cavity 279 completely enclosed along pipe range direction, is connected to the interior lead-in wire 288 that connects Connecing on termination 226 on connection bolt 217, external lead wire 255 passes through runners circular hole 223 He on fairlead seat 211 successively After sealing hole circle 267 on the corresponding external termination 236 being connected to be positioned on the connection bolt 217 of the second cavity 279, owing to connecing The two ends of line bolt lay respectively in two airtight cavitys, it is possible to be effectively isolated the leakage of electric spark.In special In runners on die nut insertion fairlead seat 211 among hexagonal 237, by fairlead seat 211 external screw thread and line box end cap 214 Female thread is tightened so that sealing hole is airtight after enclosing 267 compressive deformations holds external lead wire 255 tightly.At the bottom of online box end cap 214 female thread Plane is provided with sealing hole circle 267 and carries out secondary isolation electric spark, avoids electric spark to reveal further, and flame proof is effective, safety Performance is high.

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 silicon carbide ceramics 260, corrosion resistance and wearability are all eager to excel more than 20% than conventional stainless steel material.

Claims (1)

1. application silicon carbide ceramics disc type explosion separation motor plumb joint equipment method for desalting seawater, this equipment 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 weld seam pressure-exchange promote pump, reverse osmosis membrane (720) both sides are respectively film intake antrum (718) and film water chamber (728), weld seam pressure-exchange promotes has supercharging welding line joint (743), release welding line joint on pump (746), low pressure welding line joint (747) and pressure accumulation welding line joint (749)；Described supercharging welding line joint (743) includes outlet weldering Pipe chamfering (794) and high-voltage tube chamfering (796) and girth weld (795), high-voltage tube chamfering (796) and conversion high-voltage tube (717) become 44-46 degree angle between, between outlet welded tube chamfering (794) and volute outlet welded tube (744), become 44-46 degree angle；

Vertical weld it is in series with permanent to stream device between described low pressure lift pump (722) import and described low pressure suction pipe (711) (724) side seam it is in series with between, described high pressure make-up pump (714) import and described moisturizing suction pipe (712) permanent to stream Device (713), described weld seam pressure-exchange promotes pump by boost in pressure weld seam pump portion and weld seam pressure-exchange machine part institute Composition, boost in pressure weld seam pump by disc type II type explosion separation motor (710) drive, in disc type II type explosion separation motor (710) without interior The overall material of circle bearing (260) is silicon carbide ceramics, it is characterized in that: disc type II type explosion separation motor (710) and critical component group Be filled with and pressure-exchange principle and reverse osmosis seawater desalting Engineering Task process as follows:

(1), disc type II type explosion separation motor (710) assembles:

Being arranged on rotor field spider (232) by rotor (250), rotor field spider (232) is fixedly connected on machine shaft (240) On maximum gauge at；Rear stator (252) is fixedly connected on the inner face of motor rear cover plate (230), and front stator (251) is fixed Be connected on the inner face of front motor cover plate (220), rotor (250) be positioned at rear stator (252) and front stator (251) it Between；Equipped with bearing bonnet (233) on motor rear cover plate (230)；

Use line box dividing plate (212) that junction box seat (213) is isolated into two first cavitys completely enclosed along pipe range direction (278) technical scheme of and the second cavity (279), connects termination by interior connecing in lead-in wire (288) is connected on connection bolt (217) (226) on, after external lead wire (255) passes through the runners circular hole (223) on fairlead seat (211) successively and seals hole circle (267) Correspondence is connected on the external termination (236) that is positioned on the connection bolt (217) of the second cavity (279), due to connection bolt Two ends lay respectively in two airtight cavitys, it is possible to be effectively isolated the leakage of electric spark；Pull by special interior hexagonal In runners on hands insertion fairlead seat (211) among hexagonal (237), by fairlead seat (211) external screw thread and line box end cap (214) female thread is tightened so that sealing hole is airtight after enclosing (267) compressive deformation holds external lead wire (255) tightly；

(2), welding line joint pipeline connects:

(1), supercharging welding line joint (743) connect, will outlet welded tube chamfering (794) align with high-voltage tube chamfering (796), exporting Carry out butt welding between welded tube chamfering (794) and high-voltage tube chamfering (796), produce girth weld (795), change high-voltage tube (717) and constitute weld seam airtight connection between volute outlet welded tube (744) to fix；

(2) as supercharging welding line joint (743) connected mode, respectively by release welding line joint (746), low pressure welding line joint And the pipeline of pressure accumulation welding line joint (749) and its both sides, position carries out butt welding (747) so that drain line (726) with Between pressure release runner (752) connection, fix, low pressure line (723) connects it with low pressure runner (742) by weld seam airtight connection for composition Between constitute weld seam airtight connection fix, film return duct (727) connect with pressure accumulation runner (751) between composition weld seam airtight connection consolidate 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) and the Front Cover Bearing hole on front motor cover plate (220) (224) interference fits at nearly outer end, and the hollow pillow hole on protecgulum hollow axle (280) is passed through with hollow axle screw (228) (805) match with the protecgulum screw (227) on front motor cover plate (220), by the hollow axle flange on protecgulum hollow axle (280) (807) it is close to fix with the protecgulum concave station face (229) on front motor cover plate (220)；

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

First impeller adjusting ring (292) matched in clearance put among impeller stepped hole (296) and cross stepped hole escape (293) It is attached on bearing hub bore bottom surface (295)；Again by the interference fit press-in slightly of the bearing outer ring (269) on no inner-ring bearing (260) Among impeller stepped hole (296) on impeller bearing hub (290), then impeller bore snap ring (291) is put into leaf with specific purpose tool In wheel draw-in groove (298) so that bearing outer ring (269) both sides against impeller bore snap ring (291) and impeller adjusting ring respectively (292)；

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

The bearing outer ring (269) being fixed on impeller bearing hub (290) is inserted in together with cylinder needle roller (268) outside being fixed on Last point of bearings circle (289), slowly rotates booster pump impeller (770) so that the impeller flower on impeller bearing hub (290) Keyhole (294) is directed at the axle spline segment (249) on machine shaft (240) and matches, and continues to push against impeller bearing hub (290), Overall the propping up with outer bearing of cylinder needle roller (268) on bearing outer ring (269) is made to hold 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 on machine shaft (240) End screw (247) matches；

Again with five back-up ring screws (277) pass through after the positioning retainer ring through hole on axial positioning retainer ring (270) with impeller bearing hub (290) the locking screw (297) on matches, and axial positioning retainer ring (270) is also fastened to impeller bearing hub (290) outer face On；

Finally pass through successively on the through hole on locking catch (271) and axial positioning retainer ring (270) with a back-up ring screw (277) Positioning retainer ring through hole after also match with the locking screw (297) on impeller bearing hub (290)；

(4), weld seam pressure-exchange machine 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 weld seam pressure-exchange machine part Moving part exchanger rotor (740) rotates freely, and exchanger rotor (740) rotates with per second 22, completes pressure-exchange passage A-M Interior flow 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 (742) together with the pressure accumulation sea water that dams During with 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 is respectively at and supercharging runner (741) together with the pressure accumulation sea water that dams During with 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 increasing Pressure center round (732)；The pre-treating seawater being possessed 5.8 MPas (MPa) by exchange pressure is pressurized by booster pump suction inlet (731) Impeller of pump (770) suction by centrifugation power are pressurized to 6.0 MPas (MPa) and flow through volute outlet welded tube (744) and supercharging weldering successively Sew up head (743), be finally incorporated to high pressure sea water inlet pipe (719)；

(5), reverse osmosis seawater desalting Engineering Task process:

Low pressure suction pipe (711) and moisturizing suction pipe (712) are inserted into 19-21 centimetre, pretreatment pool water surface (721) lower section, start 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 supplementing After high-voltage tube (716), pipeline threeway (769) and high pressure sea water inlet pipe (719), it is injected among film intake antrum (718) and directly joins With 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 80.2% Sea water is dammed by reverse osmosis membrane (720), and wherein the process fresh water of 19.8% 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) 80.2% the pressure accumulation sea water that dams through film return duct (727), connect by pressure accumulation weld seam 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 welding line joint (746), emits from drain line (726)；

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 welding line joint (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 welding line joint (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.