CN203877992U - Welded island seawater separating desalination apparatus - Google Patents

Abstract

The utility model relates to a seawater desalination apparatus and specifically relates to a welded island seawater separating desalination apparatus. A primary output shaft is welded and fixed with the coupling input welding groove of a welded-connection six-arris telescopic coupling; the coupling output welding groove of the welded-connection six-arris telescopic coupling is welded and fixed with the low-pressure pump input shaft of the low-pressure centrifugal pump; the lifting water inlet pipe of the low-pressure centrifugal pump is connected with a seafloor water filter; the lifting water outlet pipe of the low-pressure centrifugal pump goes through the water pipe sealing hole of a partition wall from outside to inside and then is connected to a pretreatment standby tank; a final high-speed output shaft is welded and fixed with the input main shaft of a high-pressure centrifugal pump; the high-pressure pump suction pipe of the high-pressure centrifugal pump is connected with the pretreatment standby tank; the high-pressure pump water outlet pipe of the high-pressure centrifugal pump is connected with the osmotic membrane front chamber of a reverse osmosis membrane assembly; as an improvement, the osmotic membrane rear chamber of the reverse osmosis membrane assembly is orderly connected to an active carbon adsorption tank and a fresh water storage tank; and each of the high-pressure pump suction pipe and the high-pressure pump water outlet pipe is connected in series with a horizontal welded-connection backstop.

Description

A kind of welding islands and reefs seawater separate fresh equipment

Technical field

The utility model relates to a kind of sea water desalting equipment, especially welds islands and reefs seawater separate fresh equipment without the one of power consumption oil consumption.

Background technology

The island of once living for generations, supplies with owing to cannot solving fresh water the abandonment of having to.The value on island, the world today is progressively paid attention to by every country, but wants to one's name, and best evidence is the fact that can live on this island.Such island is often away from continent, and can not have electric power energy equipment etc. while finding island the earliest, and the primary resource of human survival, except air is exactly fresh water.Although rely on the desalination technology of electric power and equipment day by day ripe, such sea water desalting equipment not only energy consumption is huge, and volume own is very huge, can not carry.Away from the islands and reefs aboundresources in inland, occupy these islands and reefs significant, but its electric power safeguard is difficult problem, even if there is electric power safeguard, if while meeting unexpected, power breakdown, just rely on the sea water desaltination of electric power not realize.Therefore, need badly and solve under unregulated power condition, rely on the sea water desaltination problem of manpower.

Utilizing at present reverse osmosis membrane to carry out desalination technology is reaching its maturity, only need external force to provide the needed pressure of membrane sepn process just much of that, be particularly suitable for islands and reefs operation and do not rely on any energy, therefore, also someone has proposed manual Portable type sea water desalination device, as Chinese patent 200420033419.9, 01106384.X all mentions manual seawater desalting device, to utilize hand driven high pressure pump to provide membrane sepn process needed pressure, and 98102171.9 just broadly mentioned utilize triumph device provide membrane sepn process needed pressure, and more than hand impeller pump is difficult to accomplish that sea pressure is brought up to 5 MPas (MPa).But the acting of the manpower of above-mentioned patent must be to be all close to machinery equipment device, and operator can only fulfil assignment and cannot isolate with machinery equipment device in the same space, and therefore Working environment is very bad.In addition, because manpower acting is intermittent, particularly important in order to prevent that adverse current from causing even injury of acting loss, be equipped with to carry out quick and safe and reliable backstop.

Summary of the invention

The purpose of this utility model is to provide a kind ofly welds that islands and reefs seawater separate fresh equipment solves islands and reefs or the emergent or daily Drinking Water Problem of the seagoing vessel that casts anchor.For the deficiencies in the prior art, provide a kind of operator and the machinery equipment device can be in two mutual spaces of isolation, allow people carry out driven machine equipment configuration in the mode of practicing of hand body-building apparatus, in indoor comfortable space environment, complete sea water desaltination operation, also be equipped with extraordinary backstop, convenient operation personnel have a rest or rotation.

The utility model is by the following technical solutions: a kind of welding islands and reefs seawater separate fresh equipment, indoor one hand shake primary output shaft that recreation apparatus drives elementary gearbox turn with per minute 700 to 720 between rotation, the shaft coupling input bevel for welding of primary output shaft and welding joint six rib extension couplings is welded and fixed, welding joint six rib extension couplings pass through the transmission tube sealing gap of divider wall from inside to outside, the shaft coupling output bevel for welding of described welding joint six rib extension couplings and the low-pressure pump input shaft of low pressure impeller pump are welded and fixed, the lifting water inlet pipe of low pressure impeller pump is connecting seabed water strainer, described low pressure impeller pump be lifted out the water pipe sealing gap that water pipe ecto-entad passes through described divider wall after be connected to pre-treatment slack tank, drive at indoor double hand-operated recreation apparatus the ultimate high speed output shaft of ultimate gearbox turn with per minute 1200 to 1220 between rotation, ultimate high speed output shaft and high pressure centrifugal pump entering spindle are welded and fixed, the high-pressure pump water absorption tube of high pressure centrifugal pump is connecting pre-treatment slack tank, and the high-pressure pump rising pipe of described high pressure centrifugal pump is connecting the permeable membrane ante-chamber of reverse osmosis membrane assembly, the permeable membrane back cavity of reverse osmosis membrane assembly is connected to activated carbon adsorption tank and fresh water hold-up vessel successively, as improvement: be all in series with horizontal welding joint backstop on described high-pressure pump water absorption tube and described high-pressure pump rising pipe.

Described welding joint six rib extension couplings comprise output welding joint, output square universal joint, output six equilateral sleeve pipes, input six prisms, input square universal joint and input welding joint, on described output square universal joint, there are two pairs of mutual vertically arranged output side body nipple orifice and output side's body collar aperture, on described input square universal joint, have body tubing string hole, two pairs of mutual vertically arranged input sides and input side's body nipple orifice; On the out splice going splice both feet of described output welding joint, having out splice going splice pilot hole shrink-fit out splice going splice bearing pin outer end, is rotatable running fit between the inner and described output side's body nipple orifice of out splice going splice bearing pin; On the output sleeve pipe both feet of described output six equilateral sleeve pipes, have output sleeve pipe pilot hole shrink-fit output sleeve pipe bearing pin outer end, exporting between the inner and described output side's body collar aperture of sleeve pipe bearing pin is rotatable running fit; On the input adapter both feet of described input welding joint, having input adapter pilot hole shrink-fit input adapter bearing pin outer end, is rotatable running fit between the inner and described input side's body nipple orifice of input adapter bearing pin; On the input sleeve pipe both feet of described input six prisms, have input sleeve pipe pilot hole shrink-fit input tube axis pin of column outer end, input tube axis pin of column is rotatable running fit between inner and described body tubing string hole, input side; Six equilateral trepannings of the described equilateral sleeve pipe the other end of output six and input the six prism the other ends six prism pivot pins between for being slidably matched; On six described at least one outer side of prism pivot pin, be furnished with 6 to 8 set a distance semicircle pits of a row, on six described at least one medial surface of equilateral trepanning, be furnished with a positioning through hole corresponding on circumferential position with described set a distance semicircle pit, there is stop bit flange described positioning through hole the inner, described positioning through hole outer end section shrink-fit has disk rivet head, between disk rivet head and described positioning ball, has cylinder corrosion resistant spring; Described cylinder corrosion resistant spring structure is of a size of 0.59 to 0.60 millimeter of diameter of section, 5.9 to 6.0 millimeters of nominal diameters, 29 to 30 millimeters of spring height; Described positioning ball diameter is 7.9 to 8.0 millimeters.

Described horizontal welding joint backstop comprises cylinder axis, rotation spool, welding joint valve body, trip bolt and outer end cap, outlet elbow on described welding joint valve body has the straight tube of connection termination with import bend pipe outer end, connects on straight tube termination and has weld seam to connect groove; Described outlet elbow the inner is connecting the valve body inletpiston hard layer of described welding joint valve body, and described import bend pipe the inner is connecting the valve outlet plane hard layer of described welding joint valve body; Described valve body inletpiston hard layer is connected with the fan-shaped cambered surface of valve body with the upper limb of valve outlet plane hard layer, described valve body inletpiston hard layer is connected with valve body circle cancave cambered surface with the lower rim of valve outlet plane hard layer, on the valve body side plane of described welding joint valve body both sides, respectively has screw hole; On outer end cap described in two, there is the end cap counterbore corresponding with described screw hole; Described trip bolt is through described end cap counterbore and described fastening the matching of screw hole, and the end cap inner plane of described outer end cap and described valve body side plane are close to airtight; Enclosing cover axis hole on outer end cap described in two and the described sealed at both ends shrink-fit of cylinder axis; Described cylinder axis cylindrical coordinates with the spool circular hole rotary sliding of described rotation spool; The end cap inner plane running fit of the outer end cap described in the spool circular tube end face of described rotation spool both sides and two; In the spool pipe cambered surface of described rotation spool, there is spool fan-shaped cylinder; The spool entrance end planar side of described spool fan-shaped cylinder has annular flow road junction, and the spool exit end planar side of described spool fan-shaped cylinder has circular flow channel mouth; Between described annular flow road junction and described circular flow channel mouth, there are six tracts of runners of distortion to be connected; Between the bend flow channel conical part that described six tracts of runners of distortion contain and described spool fan-shaped cylinder, have and be connected six muscle and be connected; The thickness of described valve body inletpiston hard layer and described valve outlet plane hard layer is 0.9 to 1.1 millimeter; Single leaf thickness of described six muscle of connection is 1/15 to 1/16 of circular flow channel mouth diameter.

As further improving again: be in series with vertical weld joint backstop on described lifting water inlet pipe, described vertical weld joint backstop comprises lower welding joint hemispherical Shell, upper welding joint hemispherical Shell, cylindrical duct and upright spool, and the circular hole inlet pipe lower end on described lower welding joint hemispherical Shell has between import bevel for welding and the water strainer water out adapter of described lifting water inlet pipe lower semisection and has into water girth weld; Circular hole outlet pipe upper end on described upper welding joint hemispherical Shell has between outlet bevel for welding and the low-pressure pump suction attachment of described lifting water inlet pipe upper semisection and has water outlet girth weld; Between upper flange annulus on lower flange annulus and upper welding joint hemispherical Shell on described lower welding joint hemispherical Shell, there are 12 groups of valve casing bolt and nut group sealing location fixing; On lower interior hemisphere face on described lower welding joint hemispherical Shell, having between the pipe cylindrical in recessed circular groove inner circle and described cylindrical duct is transition fit, between the pipe lower surface in the low groove baseplane on described recessed circular groove and described cylindrical duct, contacts for sealing; On upper interior hemisphere face on described upper welding joint hemispherical Shell, having between fovea superior circular groove inner circle and described pipe cylindrical is transition fit, between the pipe upper surface in the upper groove baseplane on described fovea superior circular groove and described cylindrical duct, contacts for sealing; Between spool cylindrical on pipe inner circle in described cylindrical duct and described upright spool, it is clearance fit, spool lower peripheral surface subsequent corrosion on described upright spool and described identical the coincideing of lower interior hemisphere face subsequent corrosion, sphere subsequent corrosion and described identical the coincideing of upper interior hemisphere face subsequent corrosion on the spool on described upright spool; Between spool circular hole on spool annular aperture on described spool lower peripheral surface and described spool on sphere, for six tracts of company's muscle runners of ring-type connect, six described of ring-types even have six gussets of support on muscle runners; Described six gusset medial surfaces of support are fixedly connected on the spool cavity wall on described upright spool, and described six gusset outer sides of support are fixedly connected on the cylindrical inner side-wall of the outer inner round side of described spool; Single leaf thickness on described six gussets of support is 1/13 to 1/14 of described spool Circularhole diameter, and described six gusset length of support are 330 to 350 millimeters; The airtight cooperation of obstruction internal thread that has technique screw to stop up with interior hexagonal in described spool cavity wall lower end cambered surface forms spool internal cavity.

The beneficial effects of the utility model are:

1. being positioned at indoor one hand shakes recreation apparatus and drives elementary gearbox high speed rotating, the transmission tube sealing gap that passes through from inside to outside divider wall through welding joint six rib extension couplings drives low pressure impeller pump to obtain seawater through promoting water inlet pipe from seabed water strainer, is connected to pre-treatment slack tank obtained seawater is passed through to the water pipe sealing gap of described divider wall through being lifted out water pipe ecto-entad after; Drive the ultimate high speed output shaft of ultimate gearbox to rotarily actuate high pressure centrifugal pump high speed rotating between turning with per minute 1200 to 1220 at indoor double hand-operated recreation apparatus, the high-pressure pump water absorption tube of high pressure centrifugal pump is connecting pre-treatment slack tank, and the high-pressure pump rising pipe of described high pressure centrifugal pump is connecting the permeable membrane ante-chamber of reverse osmosis membrane assembly; Strong brine pressurize under being held back by reverse osmosis membrane assembly is discharged, and the fresh water that sees through reverse osmosis membrane assembly is finally sent into fresh water hold-up vessel and lived and drink for islands and reefs people from out the flow through tap water up to standard that meets life standard for drinking activated carbon adsorption tank is processed of permeable membrane back cavity.Adopt 6 to 8 set a distance semicircle pits of a row of six prism pivot pins in welding joint six rib extension couplings corresponding on circumferential position with the positioning through hole on six equilateral trepannings, be inserted into this scalable set a distance special construction among set a distance semicircle pit by cylinder corrosion resistant spring thrust to positioning ball, can pass through the sealing gap of the divider wall of different thickness, improve the envrionment conditions of obtaining fresh water, guarantee that operator can be in comfortable space and keep apart with machinery equipment device severe environment of living in, allow people comfortable, in amusement atmosphere, complete originally uninteresting, tired manual operation, on six at least one outer side of prism pivot pin, be furnished with 6 to 8 set a distance semicircle pits of a row, on six described at least one medial surface of equilateral trepanning, be furnished with a positioning through hole corresponding on circumferential position with described set a distance semicircle pit, there is stop bit flange described positioning through hole the inner, makes positioning ball can only expose himself 1/3rd diameter, key is to have set up positioning through hole outer end section shrink-fit to have disk rivet head, cylinder corrosion resistant spring one end between disk rivet head and described positioning ball is supported on described disk rivet head inner side, positioning ball in the holder of the cylinder corrosion resistant spring the other end, can first guarantee the equilateral sleeve pipe of output six of aluminium alloy clutch tooth extension coupling and input between six prisms and can be connected transmitting torque and can not depart from by safety telescopic,

2. outdoor remedial operation difficulty, promote on water inlet pipe and configure vertical weld joint backstop, can guarantee to promote water inlet pipe and low pressure impeller pump can retain water level in the time quitting work, can exempt next use and will arrive the outdoor trouble that adds diversion, be the key problem in technology of vertical weld joint backstop for six tracts of company's muscle runners of ring-type connect between the spool circular hole on described spool on sphere.The airtight cooperation of obstruction internal thread that has technique screw to stop up with interior hexagonal in described spool cavity wall lower end cambered surface forms spool internal cavity, can accurately control the overall proportion of upright spool well, in vertical weld joint backstop integral unit without any obstruction parts such as springs, whole runner whole process may produce the central object of larger drag losses without spring etc., be particularly suitable for using in severe environment pipeline; Thoroughly avoided, because damping spring can not bear torrent impact, bias voltage or malfunctioning caused chance failure occur, extended to a great extent work-ing life, direct benefit and indirect benefit are all very considerable;

3. this special setting of horizontal welding joint backstop of all having connected on the high-pressure pump water absorption tube of high pressure centrifugal pump and high-pressure pump rising pipe, guarantee that the discharge pressure of the pre-treating seawater pressure in pre-treatment slack tank being brought up to 5 to 6 MPas (MPa) can not produce reverse counterflow, operational safety is reliable.The rotation spool of horizontal welding joint backstop possesses agile, between described annular flow road junction and described circular flow channel mouth, there is six tracts of runners of distortion this special setting that is connected, make in horizontal welding joint backstop integral unit without any obstruction parts such as springs, just can realize uniflux function, thoroughly eliminate the hidden danger that stops fault because of backstop fault effects islands and reefs fresh water generator system pipeline.

Brief description of the drawings

Fig. 1 is overall flow schematic diagram of the present utility model.

Fig. 2 is the part sectioned view of welding joint six rib extension couplings 40.

Fig. 3 is the stereographic map of inputting six prisms 340 in Fig. 2.

Fig. 4 is the stereographic map of exporting six equilateral sleeve pipes 240 in Fig. 2.

Fig. 5 is the stereographic map of exporting square universal joint 244 in Fig. 2.

Fig. 6 is the stereographic map of inputting square universal joint 344 in Fig. 2.

Fig. 7 is A-A sectional view in Fig. 2.

Fig. 8 is B-B sectional view in Fig. 2.

Fig. 9 is C-C sectional view in Fig. 2.

Figure 10 is the partial enlarged drawing at positioning ball 480 positions of living in Fig. 8.

Figure l1 is the sectional view forward circulation status that vertical weld joint backstop 10 is crossed axial line.

Figure 12 be in Fig. 1 l the present invention in reverse blocking state.

Figure 13 is D-D sectional view in Figure 11.

Figure 14 is the upright spool 110 in Figure 11 or Figure 12.

Figure 15 is the cylindrical duct 120 in Figure 11 or Figure 12.

Figure l6 is the sectional view forward circulation status that horizontal welding joint backstop 80 is crossed axial line.

Figure 17 be in Figure 16 the present invention in reverse blocking state.

Figure 18 is E-E sectional view in Figure 16.

Figure 19 is that rotation spool 200 stereographic maps in Figure 16 represent annular flow road junction 202.

Figure 20 is that rotation spool 200 stereographic maps in Figure 17 represent circular flow channel mouth 201.

Figure 21 is welding joint valve body 300 stereographic maps in Figure 16 or Figure 12.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

A kind of welding islands and reefs seawater separate fresh equipment, indoor one hand shake primary output shaft 34 that recreation apparatus 33 drives elementary gearbox 30 turn with per minute 700 to 720 between rotation, primary output shaft 34 is welded and fixed with the shaft coupling input bevel for welding 341 of welding joint six rib extension couplings 40, welding joint six rib extension couplings 40 pass through the transmission tube sealing gap 54 of divider wall 55 from inside to outside, the shaft coupling output bevel for welding 241 of described welding joint six rib extension couplings 40 is welded and fixed with the low-pressure pump input shaft 24 of low pressure impeller pump 20, the lifting water inlet pipe 21 of low pressure impeller pump 20 is connecting seabed water strainer 11, described low pressure impeller pump 20 be lifted out the water pipe sealing gap 52 that water pipe 29 ecto-entads pass through described divider wall 55 after be connected to pre-treatment slack tank 50, drive at indoor double hand-operated recreation apparatus 77 the ultimate high speed output shaft 76 of ultimate gearbox 70 turn with per minute 1200 to 1220 between rotation, ultimate high speed output shaft 76 is welded and fixed with high pressure centrifugal pump 60 entering spindles, the high-pressure pump water absorption tube 65 of high pressure centrifugal pump 60 is connecting pre-treatment slack tank 50, and the high-pressure pump rising pipe 69 of described high pressure centrifugal pump 60 is connecting the permeable membrane ante-chamber 96 of reverse osmosis membrane assembly 90, the permeable membrane back cavity 97 of reverse osmosis membrane assembly 90 is connected to activated carbon adsorption tank 98 and fresh water hold-up vessel 99 successively, as improvement: be all in series with horizontal welding joint backstop 80 on described high-pressure pump water absorption tube 65 and described high-pressure pump rising pipe 69.

Described welding joint six rib extension couplings 40 comprise output welding joint 242, output square universal joint 244, output six equilateral sleeve pipes 240, input six prisms 340, input square universal joint 344 and input welding joint 342, on described output square universal joint 244, there are two pairs of mutual vertically arranged output side body nipple orifice 246 and output side's body collar aperture 245, on described input square universal joint 344, have body tubing string hole, two pairs of mutual vertically arranged input sides 345 and input side's body nipple orifice 346, on the out splice going splice both feet 243 of described output welding joint 242, having out splice going splice pilot hole 236 shrink-fit out splice going splice bearing pin 266 outer ends, is rotatable running fit between the inner and described output side's body nipple orifice 246 of out splice going splice bearing pin 266, on the output sleeve pipe both feet 248 of the described equilateral sleeve pipe 240 of output six, have output sleeve pipe pilot hole 285 shrink-fit output sleeve pipe bearing pin 255 outer ends, exporting between the inner and described output side's body collar aperture 245 of sleeve pipe bearing pin 255 is rotatable running fit, on the input adapter both feet 343 of described input welding joint 342, having input adapter pilot hole 336 shrink-fit input adapter bearing pin 366 outer ends, is rotatable running fit between the inner and described input side's body nipple orifice 346 of input adapter bearing pin 366, on the input sleeve pipe both feet 348 of described input six prisms 340, have input sleeve pipe pilot hole 385 shrink-fit input tube axis pin of column 355 outer ends, input tube axis pin of column 355 is rotatable running fit between inner and described body tubing string hole, input side 345, six equilateral trepannings 249 of equilateral sleeve pipe 240 the other ends of described output six and input six prism 340 the other ends six prism pivot pins 349 between for being slidably matched, on six described prism pivot pin 349 at least one outer side, be furnished with 6 to 8 set a distance semicircle pits 347 of a row, on six described equilateral trepanning 249 at least one medial surface, be furnished with a positioning through hole 438 corresponding on circumferential position with described set a distance semicircle pit 347, described positioning through hole 438 the inners have stop bit flange 437 can stop positioning ball 480 can only expose himself 1/3rd diameter, described positioning through hole 438 outer end section shrink-fit have disk rivet head 247, between disk rivet head 247 and described positioning ball 480, there is cylinder corrosion resistant spring 488, described cylinder corrosion resistant spring 488 scantlings of the structure are 0.59 to 0.60 millimeter of diameter of section, 5.9 to 6.0 millimeters of nominal diameters, 29 to 30 millimeters of spring height, described positioning ball 480 diameters are 7.9 to 8.0 millimeters.

As further improvement: described horizontal welding joint backstop 80 comprises cylinder axis 100, rotation spool 200, welding joint valve body 300, trip bolt 700 and outer end cap 900, outlet elbow 301 on described welding joint valve body 300 has the straight tube of connection termination 307 with import bend pipe 302 outer ends, connects on straight tube termination 307 and has weld seam to connect groove 305; Described outlet elbow 301 the inners are connecting the valve body inletpiston hard layer 308 of described welding joint valve body 300, and described import bend pipe 302 the inners are connecting the valve outlet plane hard layer 309 of described welding joint valve body 300; Described valve body inletpiston hard layer 308 is connected with the fan-shaped cambered surface 603 of valve body with the upper limb of valve outlet plane hard layer 309, described valve body inletpiston hard layer 308 is connected with valve body circle cancave cambered surface 602 with the lower rim of valve outlet plane hard layer 309, on the valve body side plane 306 of described welding joint valve body 300 both sides, respectively has screw hole 207; On outer end cap 900 described in two, there is the end cap counterbore 907 corresponding with described screw hole 207; Described trip bolt 700, through described end cap counterbore 907 and described fastening the matching of screw hole 207, is close to airtight by the end cap inner plane of described outer end cap 900 908 and described valve body side plane 306; Enclosing cover axis hole 901 on outer end cap 900 described in two and the described sealed at both ends shrink-fit of cylinder axis 100; Described cylinder axis 100 cylindricals coordinate with spool circular hole 801 rotary slidings of described rotation spool 200; End cap inner plane 908 running fit of the outer end cap 900 described in the spool circular tube end face 809 of described rotation spool 200 both sides and two; In the spool pipe cambered surface 802 of described rotation spool 200, there is spool fan-shaped cylinder 205; Spool entrance end plane 208 sides of described spool fan-shaped cylinder 205 have annular flow road junction 202, and spool exit end plane 209 sides of described spool fan-shaped cylinder 205 have circular flow channel mouth 201; Between described annular flow road junction 202 and described circular flow channel mouth 201, there are six tracts of runners 808 of distortion to be connected; Between bend flow channel cone 204 parts that described six tracts of runners 808 of distortion contain and described spool fan-shaped cylinder 205, have to be connected six muscle 404 and to be connected, single leaf thickness of described six muscle 404 of connection is 1/15 to 1/16 of circular flow channel mouth 201 diameters.

As further improving again: described circular flow channel mouth 201 diameters on described horizontal welding joint backstop 80 are equal to or less than described outlet elbow 301 flow diameters; In described spool exit end plane 209, have exit face seal groove 501, described exit face seal groove 501 diameters are greater than 12 to 13 millimeters of described outlet elbow 301 flow diameters.

As further improving again: large 200 to 202 millimeters than described import bend pipe 302 flow diameters of described annular flow road junction 202 inner ring diameters on described horizontal welding joint backstop 80; In described spool entrance end plane 208, there is inlet face seal groove 502, described inlet face seal groove 502 diameters are less than 11 to 12 millimeters of described annular flow road junction 202 inner ring diameters, and described inlet face seal groove 502 diameters are greater than 11 to 12 millimeters of described import bend pipe 302 flow diameters.

As further improving again: have dead axle seal groove 509 on the described enclosing cover axis hole 901 on described horizontal welding joint backstop 80.

As further improving again: the angle between the described valve body inletpiston hard layer 308 on described horizontal welding joint backstop 80 and described valve outlet plane hard layer 309 is 90 degree to 91 degree; Described valve body inletpiston hard layer 308 and the extension angle line of described valve outlet plane hard layer 309 and described cylinder axis 100 axial line overlaids.

As further improving again: the angle between the described spool entrance end plane 208 on described horizontal welding joint backstop 80 and described spool exit end plane 209 is 52 degree to 53 degree; Described spool entrance end plane 208 and the extension angle line of described spool exit end plane 209 and described cylinder axis 100 axial line overlaids.

As further improving again: fan-shaped cambered surface 603 axial lines of described valve body on described horizontal welding joint backstop 80 and described cylinder axis 100 axial line overlaids, described valve body circle cancave cambered surface 602 axial lines and described cylinder axis 100 axial line overlaids.

As further improving again: described spool pipe cambered surface 802 axial lines on described horizontal welding joint backstop 80 and described cylinder axis 100 axial line overlaids, fan-shaped cambered surface 803 axial lines of described spool and described cylinder axis 100 axial line overlaids.

As further improving again: the gap between the described spool pipe cambered surface 802 on described horizontal welding joint backstop 80 and described valve body circle cancave cambered surface 602 is 2 to 3 millimeters; Gap between the fan-shaped cambered surface 803 of spool of described spool fan-shaped cylinder 205 and the described fan-shaped cambered surface 603 of valve body is 2 to 3 millimeters; Gap between the fan-shaped side 805 of spool of described spool fan-shaped cylinder 205 and described end cap inner plane 908 is 2 to 3 millimeters.

As further improvement: be in series with vertical weld joint backstop 10 on described lifting water inlet pipe 21, described vertical weld joint backstop 10 comprises lower welding joint hemispherical Shell 190, upper welding joint hemispherical Shell 180, cylindrical duct 120 and upright spool 110, and circular hole inlet pipe 195 lower ends on described lower welding joint hemispherical Shell 190 have between import bevel for welding 191 and the water strainer water out adapter 132 of described lifting water inlet pipe 21 lower semisections and have into water girth weld 139; Circular hole outlet pipe 185 upper ends on described upper welding joint hemispherical Shell 180 have between outlet bevel for welding 181 and the low-pressure pump suction attachment 131 of described lifting water inlet pipe 21 upper semisections and have water outlet girth weld 138; Between upper flange annulus 189 on lower flange annulus 198 and upper welding joint hemispherical Shell 180 on described lower welding joint hemispherical Shell 190, there are 12 groups of valve casing bolt and nut groups, 140 sealing location fixing; On lower interior hemisphere face 196 on described lower welding joint hemispherical Shell 190, having between the pipe cylindrical 123 in recessed circular groove 193 inner circles and described cylindrical duct 120 is transition fit, between the pipe lower surface 129 in the low groove baseplane 194 on described recessed circular groove 193 and described cylindrical duct 120, contacts for sealing; On upper interior hemisphere face 187 on described upper welding joint hemispherical Shell 180, having between fovea superior circular groove 183 inner circles and described pipe cylindrical 123 is transition fit, between the pipe upper surface 128 in the upper groove baseplane 184 on described fovea superior circular groove 183 and described cylindrical duct 120, contacts for sealing; Between spool cylindrical 112 on pipe inner circle 121 in described cylindrical duct 120 and described upright spool 110, it is clearance fit, spool lower peripheral surface 115 subsequent corrosion on described upright spool 110 and described identical the coincideing of lower interior hemisphere face 196 subsequent corrosion, sphere 117 subsequent corrosion and described identical the coincideing of upper interior hemisphere face 187 subsequent corrosion on the spool on described upright spool 110; Between spool circular hole 118 on spool annular aperture 119 on described spool lower peripheral surface 115 and described spool on sphere 117, for six tracts of company's muscle runners 157 of ring-type connect, six described of ring-types even have six gussets 114 of support on muscle runners 157; Described six gusset 114 medial surfaces of support are fixedly connected on the spool cavity wall 111 on described upright spool 110, and described six gusset 114 outer sides of support are fixedly connected on the cylindrical inner side-wall 113 of described spool cylindrical 112 inner sides; Single leaf thickness on described six gussets 114 of support is 1/13 to 1/14 of described spool circular hole 118 diameters, and described six gusset 114 length of support are 330 to 350 millimeters; In described spool cavity wall 111 lower end cambered surfaces, there are technique screw 151 and interior hexagonal to stop up 154 the airtight formation spool internal cavity 156 that coordinates of obstruction internal thread 152.

As further improving again: the spherical radius on the lower interior hemisphere face 196 in described vertical weld joint backstop 10 and described upper interior hemisphere face 187 is 640 to 660 millimeters, and described circular hole inlet pipe 195 and described circular hole outlet pipe 185 internal diameters are 118 to 120 millimeters.

As further improving again: have sealing groove 177 on spool to be fixed wtih spool upper sealing ring 178 on sphere 117 on the spool in described vertical weld joint backstop 10, on described spool, sealing groove 177 diameters are greater than 28 to 29 millimeters of described spool circular hole 118 internal diameters, and described spool circular hole 118 internal diameters equate with described circular hole outlet pipe 185 internal diameters.

As further improving again: have spool lower seal groove cavity 155 to be fixed wtih spool lower sealing ring 159 on the spool lower peripheral surface 115 in described vertical weld joint backstop 10, large 28 to 29 millimeters than described spool lower seal groove cavity 155 diameters of the described interior ring diameters of spool annular aperture 119, large 58 to 60 millimeters than described circular hole inlet pipe 195 flow diameters of the described interior ring diameters of spool annular aperture 119.

As further improving again: pipe inner circle 121 diameters in described vertical weld joint backstop 10 are 256 to 260 millimeters, and described pipe cylindrical 123 diameters are 330 to 335 millimeters.

As further improving again: the maximum spacing on the spool lower peripheral surface 115 in described vertical weld joint backstop 10 and described spool between sphere 117 is 712 to 720 millimeters.

In embodiment, water strainer 11 radiuses in seabed are the filter screen of 0.7 meter, and water strainer bottom, seabed filter screen can be tackled equivalent diameter size and be greater than 1 millimeter of marine organisms.

Described cylinder corrosion resistant spring 488 scantlings of the structure are 0.60 millimeter of diameter of section, 6.0 millimeters of nominal diameters, 30 millimeters of spring height; Described positioning ball 480 diameters are 8.0 millimeters.

Vertical weld joint backstop 10 assembling process:

On obstruction internal thread 152, being coated with sealing resin coordinates with technique screw 151 is airtight;

Spool lower sealing ring 159 is put in the spool lower seal groove cavity 155 of spool lower peripheral surface 115 respectively, spool upper sealing ring 178 is put on the spool of sphere 117 on spool in sealing groove 177; Again upright spool 110 entirety are placed in the pipe inner circle 121 of cylindrical duct 120.

Allow to have between recessed circular groove 193 inner circles and pipe cylindrical 123 on lower interior hemisphere face 196 on lower welding joint hemispherical Shell 190 be transition fit, between the pipe lower surface 129 in low groove baseplane 194 and cylindrical duct 120 on recessed circular groove 193, contact for sealing;

Allow to have between fovea superior circular groove 183 inner circles and pipe cylindrical 123 on upper interior hemisphere face 187 on welding joint hemispherical Shell 180 be transition fit, between the pipe upper surface 128 in upper groove baseplane 184 and cylindrical duct 120 on fovea superior circular groove 183, contact for sealing;

Fixing with 12 groups of valve casing bolt and nut groups, 140 sealing location between upper flange annulus 189 on lower flange annulus 198 on lower welding joint hemispherical Shell 190 and upper welding joint hemispherical Shell 180.

Use procedure, vertical weld joint backstop 10 entirety is vertical places, with the overall proportion of upright spool 110 of spool internal cavity 156 be the weight of every 1 mm cube between 1.2 grams to 1.3 grams, slightly overweight sea water specific gravity.When vertical weld joint backstop 10 is static in stopping state.

Vertical weld joint backstop 10 principle of work:

The vertical placement of vertical weld joint backstop 10 entirety, in Figure 11, while flowing from bottom to top from the seawater of seabed water strainer 11, promote to move on upright spool 110, seawater spool annular aperture 119 runner of living in of flowing through, enter into six tracts of company's muscle runner 157 runners of living in of ring-type, then flow through after spool circular hole 118 runner of living in, outflow is drawn by 20 imports of low pressure impeller pump after entering into and promoting water inlet pipe 21 upper semisections.

In Figure 12, from the seawater of low pressure impeller pump 20 imports because unforeseen circumstances is from top to bottom when adverse current, promote upright spool 110 and move down, spool lower peripheral surface 115 is fitted with lower interior hemisphere face 196, and the spool lower sealing ring 159 on spool lower peripheral surface 115 is guaranteed that runner is cut off and closed.Top-down seawater passes through spool circular hole 118 runner of living in, entering into six of ring-types is even cut off after muscle runner 157 runners of living in again, effectively stop adverse current to avoid mishap generation, and work whole process just can realize backstop effect without additionally consuming any energy consumption again.

The main body assembling process of horizontal welding joint backstop 80:

Rotation spool 200 is put among welding joint valve body 300, and spool pipe cambered surface 802 is positioned among valve body circle cancave cambered surface 602.

Cylinder axis 100 cylindricals coordinate through spool circular hole 801 rotary slidings of rotation spool 200.

In dead axle seal groove 509 on the enclosing cover axis hole 901 of two outer end caps 900, put in advance sealing-ring well, allow the end cap inner plane 908 of two outer end caps 900 respectively towards the valve body side plane 306 of welding joint valve body 300 both sides, enclosing cover axis hole 901 is aimed at cylinder axis 100.

40 trip bolts 700, respectively through fastening the matching of screw hole 207 on the end cap counterbore 907 of outer end cap 900 and the valve body side plane 306 of welding joint valve body 300, are close to airtight by the end cap inner plane of outer end cap 900 908 and valve body side plane 306.

Pipeline assembling process:

On connection straight tube termination (307) on welding joint valve body 300, there is weld seam to connect groove (305) design, guarantee can airtightly be connected with exterior line and safe and reliable.

The use procedure of horizontal welding joint backstop 80:

Welding joint valve body 300 on horizontal welding joint backstop 80 is horizontally disposed, spool fan-shaped cylinder 205 is positioned at spool circular hole 801 tops, angle between valve body inletpiston hard layer 308 and valve outlet plane hard layer 309 is 90 degree, and the angle between spool entrance end plane 208 and spool exit end plane 209 is 52 degree.When forward flow, fluid thrust just can be attached to the spool exit end plane 209 of spool fan-shaped cylinder 205 19 degree that turn clockwise on valve outlet plane hard layer 309, makes 201 pairs of outlet elbows 301 of circular flow channel mouth; Fluid is from annular flow road junction 202 after being out of shape six tracts of runners 808, and the fluid that is pooled to circular flow channel mouth 201 flows out from outlet elbow 301; When countercurrent flow, fluid thrust is rotated counterclockwise 19 degree by the spool entrance end plane 208 of spool fan-shaped cylinder 205 and just can be attached on valve body inletpiston hard layer 308, because annular flow road junction 202 and import bend pipe 302 stagger, fluid from circular flow channel mouth 201 after being out of shape six tracts of runners 808, be stopped in annular flow road junction 202, cannot flow out from import bend pipe 302, make in integral unit of the present invention, without any obstruction parts such as springs, just to realize uniflux function.

In Figure 16, when forward fluid is come in from import bend pipe 302, the spool exit end plane 209 that initial fluid promotes spool fan-shaped cylinder 205 is adjacent to after valve outlet plane hard layer 309, runner has formed: from import bend pipe 302 to annular flow road junction 202 through being out of shape six tracts of runners 808 from circular flow channel mouth 201 out, the more smooth and easy process of going out from outlet elbow 301.Sealing-ring in exit face seal groove 501 plays sealing function between spool exit end plane 209 and valve outlet plane hard layer 309.Spool entrance end plane 208 pressures are greater than spool exit end plane 209 pressures, guarantee that the forward fluid of Channel Group can not produce backflow phenomenon.Whole process duration without extra consume any energy consumption just can maintenance work.

In Figure 17, when counter fluid is come in from outlet elbow 301, the spool entrance end plane 208 that initial fluid promotes spool fan-shaped cylinder 205 is adjacent to after valve body inletpiston hard layer 308, and runner is cut off.Blocked by spool entrance end plane 208 in the time being out of shape six tracts of runners 808 at annular flow road junction 202 from outlet elbow 301 to circular flow channel mouth 201, the sealing-ring in inlet face seal groove 502 plays sealing function between spool entrance end plane 208 and valve body inletpiston hard layer 308.The counter fluid being cut off after circulation cannot arrive import bend pipe 302 again, and spool exit end plane 209 pressures are greater than spool entrance end plane 208 pressures, guarantee that unidirectional cutoff is reliable and stable.The duration of whole cut-off, consume any energy consumption with regard to energy maintenance work without extra.

By means of six runner 808 special designs of the distortion on the spool fan-shaped cylinder 205 around cylinder axis 100 axial line rotations, having realized starting force pushes open after spool, residue work whole process, without any energy consumption of extra consumption, just can accurately realize the opening and closing function of backstop.

Reverse osmosis membrane assembly 90 is adopted as sodium-chlor rejection is 98% and boron ion is had to the Type B one polysulphone reverse osmosis tubular membrane component of selecting de-function, and with timing automatic cleaning device.

Under any climatope, people can be accompanied by music in indoor body-building exercise, the singlehanded handle 35 of the hand recreation apparatus 33 of operation sheet drives the primary output shaft 34 of elementary gearbox 30 to rotate with per minute 710, drives low pressure impeller pump 20 to obtain seawater from seabed water strainer 11.Low pressure impeller pump 20 can be pressurized to obtained seawater 0.2 MPa and be injected into that in pre-treatment slack tank 50, to do pre-treatment for subsequent use.

Set up welding joint six rib extension couplings 40 at indoor elementary gearbox 30 and between outdoor low pressure impeller pump 20, guarantee that operator can be in comfortable space to keep apart with outdoor machine equipment configuration severe environment of living in.Meanwhile, the input square universal joint at welding joint six rib extension coupling 40 two ends 344 and output square universal joint 244 design, also can eliminate indoor elementary gearbox 30 and between outdoor low pressure impeller pump 20 out-of-alignment equipment installation error.

The effect of vertical weld joint backstop 10 of connecting on lifting water inlet pipe 21 between low pressure impeller pump 20 and seabed water strainer 11 is: because physical fatigue need to be had a rest or one after the other, will inevitably produce intermittence work characteristics, under water inlet pipe 21 place's water columns, fall to produce cavitation erosion in order to prevent that intermittence operation from may cause promoting, the agility of closing that promotes the vertical weld joint backstop 10 of water inlet pipe 21 places series connection depends on and in spool cavity wall 111 lower end cambered surfaces, has technique screw 151 and interior hexagonal stop up the airtight formation spool internal cavity 156 that coordinates of 154 obstruction internal thread 152 can accurately to control the overall proportion of upright spool 110 well, airtight closing is to guarantee to promote the key that in water inlet pipe 21, water column does not fall down.

Under any climatope, people can be accompanied by music in indoor body-building exercise, the both hands handle 75 of operation double hand-operated recreation apparatus 77 drive ultimate gearbox 70 ultimate high speed output shaft 76 rotate with per minute 1210, drive high pressure centrifugal pump 60 to obtain through pre-treating seawater from pre-treatment slack tank 50 through high-pressure pump water absorption tube 65.High pressure centrifugal pump 60 can be pressurized to obtained pre-treating seawater 5 MPas and be injected into through high-pressure pump rising pipe 69 the permeable membrane ante-chamber 96 of reverse osmosis membrane assembly 90.Strong brine under being held back by reverse osmosis membrane assembly 90 emits from the pressure retaining valve delivery pipe 94 that is set as 4.9 MPas, 20 percent pre-treating seawater sees through reverse osmosis membrane assembly 90 with 4.8 MPas, becomes fresh water and finally sends into fresh water hold-up vessel 99 and live and drink for islands and reefs people from out the flow through tap water up to standard that meets life standard for drinking activated carbon adsorption tank 98 is processed of permeable membrane back cavity 97.

Because high pressure centrifugal pump 60 self operating pressure is high, for avoiding adverse current accident to occur, the horizontal welding joint backstop 80 this special setting of all having connected on high-pressure pump water absorption tube 65 and high-pressure pump rising pipe 69, guarantee that the discharge pressure of the pre-treating seawater pressure of 50 li of pre-treatment slack tanks being brought up to 5 to 6 MPas (MPa) can not produce reverse counterflow, operational safety is reliable.The rotation spool 200 of horizontal welding joint backstop 80 possesses agile, between annular flow road junction 202 and circular flow channel mouth 201, there is six tracts of runners 808 of distortion this special setting that is connected, make in horizontal welding joint backstop 80 integral uniies without any obstruction parts such as springs, just can realize uniflux function, thoroughly eliminate the hidden danger stopping because of backstop fault effects islands and reefs fresh water generator system pipeline.

The transmission tube sealing gap 54 that the crucial matching component of the present invention adopts welding joint six rib extension couplings 40 to pass through from inside to outside divider wall 55 drives low pressure impeller pump 20 to obtain seawater through promoting water inlet pipe 21 from seabed water strainer 11, is connected to pre-treatment slack tank 50 obtained seawater is passed through to the water pipe sealing gap 52 of divider wall 55 through being lifted out water pipe 29 ecto-entads after; Being positioned at indoor double hand-operated recreation apparatus 77 drives the ultimate high speed output shaft 76 of ultimate gearbox 70 to turn and rotarily actuate high pressure centrifugal pump 60 high speed rotating with per minute 1210, the high-pressure pump water absorption tube 65 of high pressure centrifugal pump 60 is connecting pre-treatment slack tank 50, solve the emergent or daily Drinking Water Problem of islands and reefs or the seagoing vessel that casts anchor, the new fresh water approach that obtains is provided, improve islands and reefs and settled down living condition, and comfortable working environment, bring great convenience and feasibility.Particularly adopt 6 to 8 set a distance semicircle pits 347 of a row of six prism pivot pins 349 in welding joint six rib extension couplings 40 corresponding on circumferential position with the positioning through hole 438 on six equilateral trepannings 249, be inserted into this scalable set a distance special construction among set a distance semicircle pit 347 by cylinder corrosion resistant spring 488 thrusts to positioning ball 480, can pass through the sealing gap of the divider wall 55 of different thickness, improve the envrionment conditions of obtaining fresh water, guarantee that operator can be in comfortable space and keep apart with machinery equipment device severe environment of living in, allow people comfortable, in amusement atmosphere, complete originally uninteresting, tired manual operation, key is to have set up positioning through hole 438 outer end section shrink-fit to have disk rivet head 247, cylinder corrosion resistant spring 488 one end between disk rivet head 247 and described positioning ball 480 are supported on described disk rivet head 247 inner sides, positioning ball 480 in 488 the other end holders of cylinder corrosion resistant spring, can first guarantee the equilateral sleeve pipe 240 of output six of aluminium alloy clutch tooth extension coupling 40 and input between six prisms 340 and can be connected transmitting torque and can not depart from by safety telescopic.

In addition, promote on water inlet pipe and configure vertical weld joint backstop 10, can guarantee to promote water inlet pipe 21 and low pressure impeller pump 20 can retain water level in the time quitting work, can exempt next use and will arrive the outdoor trouble that adds diversion, be the key problem in technology of vertical weld joint backstop 10 for six tracts of company's muscle runners 157 of ring-type connect between the spool circular hole 118 on spool on sphere 117.In spool cavity wall 111 lower end cambered surfaces, have technique screw 151 and interior hexagonal to stop up forms spool internal cavity 156 and can accurately control the overall proportion of upright spool 110 well airtight cooperation of 154 obstruction internal thread 152, in vertical weld joint backstop 10 integral uniies without any obstruction parts such as springs, whole runner whole process may produce the central object of larger drag losses without spring etc., be particularly suitable for using in severe environment pipeline; Thoroughly avoided, because damping spring can not bear torrent impact, bias voltage or malfunctioning caused chance failure occur, extended to a great extent work-ing life, direct benefit and indirect benefit are all very considerable.

The horizontal welding joint backstop 80 this special setting of particularly all having connected on the high-pressure pump water absorption tube 65 of high pressure centrifugal pump 60 and high-pressure pump rising pipe 69, guarantee that the discharge pressure of the pre-treating seawater pressure of 50 li of pre-treatment slack tanks being brought up to 5 to 6 MPas (MPa) can not produce reverse counterflow accident, operational safety is reliable.The rotation spool 200 of horizontal welding joint backstop 80 possesses agile, between annular flow road junction 202 and circular flow channel mouth 201, there is six tracts of runners 808 of distortion this special setting that is connected, make in horizontal welding joint backstop 80 integral uniies without any obstruction parts such as springs, just can realize uniflux function, thoroughly eliminate the hidden danger that stops fault because of backstop fault effects islands and reefs fresh water generator system pipeline.

Claims (3)

1. a welding islands and reefs seawater separate fresh equipment, be positioned at indoor one hand shake primary output shaft (34) that recreation apparatus (33) drives elementary gearbox (30) turn with per minute 700 to 720 between rotation, described primary output shaft (34) is welded and fixed with the shaft coupling input bevel for welding (341) of welding joint six rib extension couplings (40), described welding joint six rib extension couplings (40) pass through the transmission tube sealing gap (54) of divider wall (55) from inside to outside, the shaft coupling output bevel for welding (241) of described welding joint six rib extension couplings (40) is welded and fixed with the low-pressure pump input shaft (24) of low pressure impeller pump (20), the lifting water inlet pipe (21) of described low pressure impeller pump (20) is connecting seabed water strainer (11), described low pressure impeller pump (20) be lifted out the water pipe sealing gap (52) that water pipe (29) ecto-entad passes through described divider wall (55) after be connected to pre-treatment slack tank (50), be positioned at ultimate high speed output shaft (76) that indoor double hand-operated recreation apparatus (77) drives ultimate gearbox (70) turn with per minute 1200 to 1220 between rotation, described ultimate high speed output shaft (76) is welded and fixed with high pressure centrifugal pump (60) entering spindle, the high-pressure pump water absorption tube (65) of described high pressure centrifugal pump (60) is connecting described pre-treatment slack tank (50), and the high-pressure pump rising pipe (69) of described high pressure centrifugal pump (60) is connecting the permeable membrane ante-chamber (96) of reverse osmosis membrane assembly (90), the permeable membrane back cavity (97) of described reverse osmosis membrane assembly (90) is connected to activated carbon adsorption tank (98) and fresh water hold-up vessel (99) successively, it is characterized in that: on described high-pressure pump water absorption tube (65) and described high-pressure pump rising pipe (69), be all in series with horizontal welding joint backstop (80), described welding joint six rib extension couplings (40) comprise output welding joint (242), output square universal joint (244), export six equilateral sleeve pipes (240), input six prisms (340), input square universal joint (344) and input welding joint (342), on described output square universal joint (244), there are two pairs of mutual vertically arranged output side's body nipple orifice (246) and output side's body collar aperture (245), on described input square universal joint (344), there are two pairs of mutual vertically arranged body tubing string holes, input side (345) and input side's body nipple orifice (346), on the out splice going splice both feet (243) of described output welding joint (242), having out splice going splice pilot hole (236) shrink-fit out splice going splice bearing pin (266) outer end, is rotatable running fit between the inner and described output side's body nipple orifice (246) of out splice going splice bearing pin (266), on the output sleeve pipe both feet (248) of the described equilateral sleeve pipe of output six (240), have output sleeve pipe pilot hole (285) shrink-fit output sleeve pipe bearing pin (255) outer end, exporting between the inner and described output side's body collar aperture (245) of sleeve pipe bearing pin (255) is rotatable running fit, on the input adapter both feet (343) of described input welding joint (342), having input adapter pilot hole (336) shrink-fit input adapter bearing pin (366) outer end, is rotatable running fit between the inner and described input side's body nipple orifice (346) of input adapter bearing pin (366), on the input sleeve pipe both feet (348) of described input six prisms (340), have input sleeve pipe pilot hole (385) shrink-fit input tube axis pin of column (355) outer end, input tube axis pin of column (355) is rotatable running fit between inner and described body tubing string hole, input side (345), between six prism pivot pins (349) of six equilateral trepannings (249) of the described equilateral sleeve pipe of output six (240) the other end and input six prisms (340) the other end for being slidably matched, on six described at least one outer side of prism pivot pin (349), be furnished with 6 to 8 set a distance semicircle pits of row (347), on six described at least one medial surface of equilateral trepanning (249), be furnished with a positioning through hole (438) corresponding on circumferential position with described set a distance semicircle pit (347), there is stop bit flange (437) described positioning through hole (438) the inner, described positioning through hole (438) outer end section shrink-fit has disk rivet head (247), between disk rivet head (247) and described positioning ball (480), there is cylinder corrosion resistant spring (488), described cylinder corrosion resistant spring (488) scantlings of the structure is 0.59 to 0.60 millimeter of diameter of section, 5.9 to 6.0 millimeters of nominal diameters, 29 to 30 millimeters of spring height, described positioning ball (480) diameter is 7.9 to 8.0 millimeters.

2. a kind of welding islands and reefs seawater separate fresh equipment according to claim 1, it is characterized in that: described horizontal welding joint backstop (80) comprises cylinder axis (100), rotation spool (200), welding joint valve body (300), trip bolt (700) and outer end cap (900), outlet elbow (301) on described welding joint valve body (300) has the straight tube of connection termination (307) with import bend pipe (302) outer end, connects on straight tube termination (307) and has weld seam to connect groove (305); Described outlet elbow (301) the inner is connecting the valve body inletpiston hard layer (308) of described welding joint valve body (300), and described import bend pipe (302) the inner is connecting the valve outlet plane hard layer (309) of described welding joint valve body (300); Described valve body inletpiston hard layer (308) is connected with the fan-shaped cambered surface of valve body (603) with the upper limb of valve outlet plane hard layer (309), described valve body inletpiston hard layer (308) is connected with valve body circle cancave cambered surface (602) with the lower rim of valve outlet plane hard layer (309), on the valve body side plane (306) of described welding joint valve body (300) both sides, respectively has screw hole (207); On outer end cap (900) described in two, there is the end cap counterbore (907) corresponding with described screw hole (207); Described trip bolt (700), through described end cap counterbore (907) and described fastening the matching of screw hole (207), is close to airtight by the end cap inner plane (908) of described outer end cap (900) and described valve body side plane (306); Enclosing cover axis hole (901) on outer end cap (900) described in two and the described sealed at both ends shrink-fit of cylinder axis (100); Described cylinder axis (100) cylindrical coordinates with spool circular hole (801) rotary sliding of described rotation spool (200); The spool circular tube end face (809) of described rotation spool (200) both sides and end cap inner plane (908) running fit of outer end cap (900) described in two; In the spool pipe cambered surface (802) of described rotation spool (200), there is spool fan-shaped cylinder (205); Spool entrance end plane (208) side of described spool fan-shaped cylinder (205) has annular flow road junction (202), and spool exit end plane (209) side of described spool fan-shaped cylinder (205) has circular flow channel mouth (201); Between described annular flow road junction (202) and described circular flow channel mouth (201), there are six tracts of runners of distortion (808) to be connected; Between bend flow channel cone (204) that described six tracts of runners of distortion (808) contain part and described spool fan-shaped cylinder (205), have and be connected six muscle (404) and be connected; The thickness of described valve body inletpiston hard layer (308) and described valve outlet plane hard layer (309) is 0.9 to 1.1 millimeter; Single leaf thickness of described six muscle of connection (404) is 1/15 to 1/16 of circular flow channel mouth (201) diameter.

3. a kind of welding islands and reefs seawater separate fresh equipment according to claim 1, it is characterized in that: on described lifting water inlet pipe (21), be in series with vertical weld joint backstop (10), described vertical weld joint backstop (10) comprises lower welding joint hemispherical Shell (190), upper welding joint hemispherical Shell (180), cylindrical duct (120) and upright spool (110), circular hole inlet pipe (195) lower end on described lower welding joint hemispherical Shell (190) has between import bevel for welding (191) and the water strainer water out adapter (132) of described lifting water inlet pipe (21) lower semisection and has into water girth weld (139), circular hole outlet pipe (185) upper end on described upper welding joint hemispherical Shell (180) has between outlet bevel for welding (181) and the low-pressure pump suction attachment (131) of described lifting water inlet pipe (21) upper semisection and has water outlet girth weld (138), between upper flange annulus (189) on lower flange annulus (198) and upper welding joint hemispherical Shell (180) on described lower welding joint hemispherical Shell (190), there is 12 groups of valve casing bolt and nut groups (140) sealing location fixing, on lower interior hemisphere face (196) on described lower welding joint hemispherical Shell (190), having between the pipe cylindrical (123) in recessed circular groove (193) inner circle and described cylindrical duct (120) is transition fit, between the pipe lower surface (129) in the low groove baseplane (194) on described recessed circular groove (193) and described cylindrical duct (120), contacts for sealing, on upper interior hemisphere face (187) on described upper welding joint hemispherical Shell (180), having between fovea superior circular groove (183) inner circle and described pipe cylindrical (123) is transition fit, between the pipe upper surface (128) in the upper groove baseplane (184) on described fovea superior circular groove (183) and described cylindrical duct (120), contacts for sealing, between spool cylindrical (112) on pipe inner circle (121) in described cylindrical duct (120) and described upright spool (110), it is clearance fit, spool lower peripheral surface (115) subsequent corrosion on described upright spool (110) and described identical the coincideing of lower interior hemisphere face (196) subsequent corrosion, sphere (117) subsequent corrosion and described identical the coincideing of upper interior hemisphere face (187) subsequent corrosion on the spool on described upright spool (110), between spool circular hole (118) on spool annular aperture (119) on described spool lower peripheral surface (115) and described spool on sphere (117), for six tracts of company's muscle runners of ring-type (157) connect, six described of ring-types even have six gussets of support (114) on muscle runners (157), spool cavity wall (111) on upright spool (110) described in described six gussets of support (114) medial surface is fixedly connected on is upper, and described six gussets of support (114) outer side is fixedly connected on the cylindrical inner side-wall (113) of described spool cylindrical (112) inner side, single leaf thickness on described six gussets of support (114) is 1/13 to 1/14 of described spool circular hole (118) diameter, and described six gussets of support (114) length is 330 to 350 millimeters, the airtight cooperation of obstruction internal thread (152) that has technique screw (151) and interior hexagonal to stop up (154) in described spool cavity wall (111) lower end cambered surface forms spool internal cavity (156).