Titanium alloy internal and external thread shaft coupler isolation seawater desalting device

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] exist figure 1 , figure 2 and image 3 Among them, a titanium alloy inner and outer thread coupling isolation seawater desalination device, including a filter suction pipe 11, a water lifter 12, a pretreatment device 13, a high pressure pump 20, a speed increaser 30, a corrosion-resistant alloy coupling 40, Power device 55, reverse osmosis membrane module 60 and activated carbon adsorption tank 68, as an improvement: the corrosion-resistant alloy coupling includes external threaded joint 43, output cube universal joint 42, output pipe string 84, input string pipe 48 , Input the cube universal joint 47 and the inner threaded joint 45; the bottom end of the filter suction pipe 11 has a filter screen with a spherical radius of 0.6 to 0.8 meters, and the upper end of the filter suction pipe 11 is connected to the water lifter 12; The water outlet end of 12 is connected to the pretreatment device 13, the water outlet end of the pretreatment device 13 is connected to the high pressure pump water inlet pipe 21 of the high pressure pump 20, and the high pressure pump water outlet pipe 29 is connected to the reverse osmosis membrane assembly. The permeable membrane inlet 61 of 60; the permeable membrane outlet 69 is connected to the inlet of the activated carbon adsorption tank 68; the drive shaft 23 of the high-pressure pump 20 is connected to the output end of the speed increaser 30, and the The input end 34 is connected with the external threaded joint 43, the internal threaded joint 45 is connected with the work output shaft 54 ​​of the power generator 55, and the power generator 55 is provided with a rotating handle 50; The input fork 46 of the inner threaded joint 45 is swingably connected to the input cube universal joint 47 on a pair of planes, and the input cube universal joint 47 is swingably connected to the input column on the other pair of planes. The fork end of the pipe 48; the output fork 41 of the male threaded joint 43 and the output cube universal joint 42 are swingably connected on a pair of planes, and the output cube universal joint 42 is swingable on the other pair of planes is connected to the fork end of the output pipe string 84; the hexagonal hole end of the input string pipe 48 is slidingly matched with the hexagonal end of the output pipe string 84; the outer circle of the input string pipe 48 It is clearance fit with the communicating hole 94 of the isolation wall 95; the outer circle of the output pipe column 84 is clearance fit with the communicating hole 94 of the isolation wall 95; the corrosion-resistant alloy coupling 40 is made of titanium alloy corrosion-resistant material as a whole, so The titanium alloy corrosion-resistant material is composed of the following elements by weight: Ti: 22-24, Cu: 21-23, Cr: 21-22, Sn: 2-3, Zn: 21-22, Co: 1-2 , the remainder is Mo and inevitable impurities; the weight percent content of the impurities is: C less than 0.05, Si less than 0.20, Mn less than 0.25, S less than 0.010, and P less than 0.015.

[0018] As a further improvement: the filter screen at the bottom of the filter straw 11 can intercept marine organisms larger than 1 mm in size.

[0019] As a further improvement: the water lifter 12 extracts seawater through the filter straw 11 by hand shaking.

[0020] As a further improvement: the pretreatment device 13 includes a micro-electrolysis tank and a sand filter sedimentation tank.

[0021] As a further improvement: the high-pressure pump 20 is a multi-stage micro-centrifugal pump.

[0022] In the implementation, there is a filter screen with a spherical radius of 0.7 meters at the bottom end of the filter straw, and the titanium alloy corrosion-resistant material is composed of the following elements by weight: Ti: 23, Cu: 2: 2, Cr: 21.5, Sn: 2.5, Zn: 21.5, Co: 1.5, the balance is Mo and inevitable impurities; the weight percent content of the impurities is: C: 0.03, Si: 0.12, Mn: 0.14, S: 0.005, P: 0.009.

[0023] In implementation, the transmission ratio of the speed increaser 30 of the multi-stage planetary gear structure is 2000, the water output of the high-pressure pump 20 is 10 liters per hour, and the maximum water output pressure is a multi-stage micro-centrifugal pump of 6 MPa. The reverse osmosis membrane module 60 is a type B-polysulfone reverse osmosis tubular membrane module with a rejection rate of 98% for sodium chloride and a selective removal of boron ions, and is equipped with a timing automatic cleaning device. Corrosion-resistant alloy coupling 40 is used between the high-pressure pump 20 and the power generator 55 to pass through the communication hole 94 of the isolation wall 95 to ensure that the operator can stay in a comfortable space and be isolated from the harsh environment where the machinery and equipment are located.

[0024] When the weather is good, the outdoor hand-cranked water lifter 12 sucks the seawater from the filter straw 11 and injects it into the pretreatment device 13 for pretreatment and standby.

[0025] In any weather environment, with the effective isolation of the corrosion-resistant alloy coupling 40 through the communication hole 94 of the isolation wall 95, the fitness exercise can be accompanied by music indoors, alone or in groups of two, through the slow speed of 30 revolutions per minute. The rotary handle 50 in the rhythmic motion rotary entertainment actuator 55 drives the speed increaser 30 through the corrosion-resistant alloy coupling 40 to drive the multi-stage micro-centrifugal pump to rotate at a high speed at 6,000 revolutions per minute. The pre-treated seawater in the processing device 13, the water output of the high-pressure pump 20 is 10 liters per hour, and the outlet pressure of 5 MPa is connected to the osmotic membrane inlet 61 of the reverse osmosis membrane module 60 through the high-pressure pump outlet pipe 29; Through the reverse osmosis membrane module 60, it is injected into the activated carbon adsorption tank 68 from the osmosis membrane outlet 69 for use. The desalinated water after adsorption by the activated carbon adsorption tank 68 meets the GB5749-2006 standard of "Drinking Water Hygiene Standard".

[0026] Table 1 is a comparison of the wear data of the corrosion-resistant alloy coupling of the present invention and the ordinary stainless steel coupling. It can be seen that the wear amount of the corrosion-resistant alloy coupling is much smaller than that of the ordinary stainless steel coupling.

[0027] Corrosion and wear test comparison table:

[0028]

[0029] It can be concluded from the comparison table of corrosion and wear experiments that the key supporting parts of the present invention adopt corrosion-resistant alloy coupling 40, which is durable and solves the emergency or daily drinking water problems of isolated islands or anchored sea ships. The communication hole 94 passing through the isolation wall 95 provides a new way to obtain fresh water, improves the living conditions of the isolated island, and brings great convenience and feasibility.