Multipath water treatment control valve
(1) technical field:
The present invention relates to the water route control gear; Be specifically related to a kind of multipath water treatment control valve.
(2) background technique:
In the prior art, the small flow water treatment control valve that is used for producing or lives (its water flow is general≤6T/h), its spool normally adopts a pair of end face involutory moving valve plate that is tightly connected and fixed valve plate formation mutually, by rotating moving valve plate, come the output of control valve in-core current and change direction, time and the flow that current are exported,, realize water purification is handled by filtrate (as active carbon, silica sand) being carried out backwash, just washing and proper functioning with respectively; Or to filtrate (as ion exchange resin) carry out backwash, inhale salt, just wash, the water filling of salt case and proper functioning, realize water soften the purpose of processing.So just need be provided with a plurality of flowing water through holes on the seal face of described fixed valve plate, it exists not enough: the one, because each through hole is subjected to the restriction of its physical dimension, the through hole cross sectional area is less, has seriously influenced the output of water flow in the through hole.The end face of described moving valve plate be provided with one from center hole to radial blind holes near the edge, because it is corresponding that described blind hole will be communicated with the position with a plurality of through holes that fixed valve plate is provided with, so just having limited the outer minute of angle of opening of radial blind holes perforate can not be excessive, cause blind hole flow area area to reduce, directly cause the minimizing of water flow output.Seriously influenced the demand of big flow water in people's production or the life.The 2nd, the blind hole that described moving valve plate end face is provided with is when the conversion work position, wherein two adjacent through-holes dislocation that its blind hole is easy to be provided with fixed valve plate a plurality of through holes is communicated with, undressed former water occurs and enter the water purification runner and directly discharge, had a strong impact on the quality of water treatment.The 3rd, when carrying out backwash work, owing to be subjected to the little restriction of fixed valve plate through hole cross sectional area, the backwashing water flow of through hole of flowing through obviously is less than the water flow of proper functioning, during work because repeatedly the backwashing water flow is little, wash not thorough, filtrate is produced stop up, harden or lost efficacy, directly cause the decline of water treatment effluent characteristics.
In addition, water treatment control valve of the prior art, when people respectively to water filter, co-current regeneration is softening or counter-current regeneration is softening when handling, filter tap, co-current regeneration softener valve or counter-current regeneration softener valve with special purpose can only be installed respectively can be realized, specially the valve special use has obviously increased the cost of production of water treatment control valve.
(3) summary of the invention:
At the deficiency that above-mentioned prior art exists, the object of the present invention is to provide a kind of people in producing or living, both can satisfy big flow water demand, improve effluent characteristics again and realize multi-purpose valve, the multipath water treatment control valve that reduces production costs.
For achieving the above object, technical solution of the present invention is that this multipath water treatment control valve mainly comprises by the valve body that is connected with original water inlet, pure water inlet and sewage draining exit, and the spool that valve rod connects places valve body to constitute; Its improvement is: the spool that described valve rod connects places left and right two valve pockets of valve body; Described spool is that the moving valve plate and the fixed valve plate that adopt left and right two pairs of end faces to be sealed and matched mutually constitute; Described two moving valve plate end faces are connected with the valve rod end face is chimeric respectively; On the fitting end face of described valve rod, be provided with the volume groove; On described moving valve plate end face, be provided with one from center bore to the fan-shaped pylone that extends to its edge; On the end face of described left fixed valve plate, be respectively equipped with water distributing pore, fan-shaped water inlet and pollutant exhaust hole; On the end face of described right fixed valve plate, be respectively equipped with down water distributing pore, fan-shaped water inlet, pollutant exhaust hole and osculum; Upper and lower water distributing pore on the described left and right fixed valve plate, the upper and lower water distributing pore by the left and right valve pocket of valve body is communicated with upper and lower water-dispensing device attachment hole respectively; The original water inlet inner chamber of described valve body also is respectively equipped with two and advances Yan Kou, and one of them advances the salt mouth and is communicated with the counter-current regeneration salt inlet; Another advances the salt mouth and is communicated with the co-current regeneration salt inlet; Water inlet, pollutant exhaust hole and osculum on the described left and right fixed valve plate are connected by runner with original water inlet, sewage draining exit and pure water inlet that valve body is provided with respectively and communicate; Whole through holes that described left and right moving valve plate and fixed valve plate end face are provided with are distributed on the same turning radius and corresponding cooperation; Be connected with fixed connecting plate and valve body fixed connection and sealing respectively in the fixed valve plate lower end.Promptly constitute filter tap.
When implementing technique scheme, be connected with the salt valve at the original water inlet place of valve body, two salt input holes of described salt valve advance the salt mouth with two of valve body respectively and are communicated with; On above-mentioned left and right fixed valve plate is provided with end face between water inlet and the pollutant exhaust hole, have additional fan-shaped salt hole respectively.Can constitute co-current regeneration softener valve and counter-current regeneration softener valve respectively.
The present invention for increasing water flow and free air space, is provided with the volume groove by the moving valve plate taking above-mentioned left and right two pairs of end faces and be sealed and matched mutually and the linkage structure of fixed valve plate on the valve rod fitting end face; Correspondence is provided with large-area fan-shaped pylone respectively on the end face of moving valve plate and fixed valve plate.At first, under the identical condition of physical dimension, compare with present technology, treated water flow obviously increases, its water flow usually 〉=25T/h, satisfied people produce or life in the needs of big flow waters.Secondly, because respectively on fixed valve plate is provided with end face between fan-shaped water inlet and the pollutant exhaust hole, and on the end face between fan-shaped water inlet and the osculum, leave the seal section of broad, thoroughly eliminated in the prior art, rotate moving valve plate and easily make dislocation connection between the fixed valve plate two adjacent through holes, guaranteed the effluent characteristics of water treatment effectively.The 3rd, be provided with the volume groove on the valve rod end face and on moving, fixed valve plate end face, be provided with the large size fan-shaped pylone respectively, when carrying out backwash work, its water flow is compared obvious increase with prior art, filtrate is rinsed well, solved thoroughly that filtrate is prone to obstruction in the prior art, the phenomenon that hardens, improved effluent characteristics.
The present invention is by selecting to connect the salt valve, and select for use four end faces to be provided with wherein two of fixed valve plate of different lead to the hole site respectively, by rotating the moving valve plate that cooperates with it, can realize the purposes of water treatment filter tap, co-current regeneration softener valve or three kinds of special valves of counter-current regeneration softener valve respectively, realize a valve three usefulness.Compare with prior art, solved the deficiency of special valve special use, the cost of production that has obviously reduced water treatment control valve is more than 55%.
(4) description of drawings:
Fig. 1 is filter tap part assembling order of connection schematic perspective view of the present invention;
Fig. 2 is the stereo amplification figure of valve rod among Fig. 1 (4);
Fig. 3 is the axial sectional view of valve rod among Fig. 2 (4);
Fig. 4 is the stereo amplification figure of moving valve plate among Fig. 1 (5);
Fig. 5 is the stereo amplification figure of moving valve plate among Fig. 1 (5);
Fig. 6 is the stereo amplification figure of left fixed valve plate (6) among Fig. 1;
Fig. 7 is the stereo amplification figure of right fixed valve plate (29) among Fig. 1;
Fig. 8 is the sectional view of fixed connecting plate among Fig. 1 (7);
Fig. 9 is the stereo amplification figure of valve body among Fig. 1 (10);
Figure 10 is the sectional view of Fig. 9;
Figure 11 is the plan view of Figure 10;
Figure 12 is that A-A among Figure 10 is to sectional view;
Figure 13 is the plan view of valve body (10);
Figure 14 be among Figure 13 B-B to sectional view;
Figure 15 is co-current regeneration softener valve part assembling order of connection schematic perspective view of the present invention;
Figure 16 is the stereo amplification figure of left fixed valve plate (6) among Figure 15;
Figure 17 is counter-current regeneration softener valve part assembling order of connection schematic perspective view of the present invention;
Figure 18 is the stereo amplification figure of right fixed valve plate (29) among Figure 17;
Figure 19 is that filter tap of the present invention is at the normal working structural representation;
Figure 20 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 19;
Figure 21 is right moving, a fixed valve plate mated condition generalized section among Figure 19;
Figure 22 is that filter tap of the present invention is at backwash working state structure schematic representation;
Figure 23 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 22;
Figure 24 is right moving, a fixed valve plate mated condition generalized section among Figure 22;
Figure 25 is just washing the working state generalized section for filter tap of the present invention;
Figure 26 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 25;
Figure 27 is right moving, a fixed valve plate mated condition generalized section among Figure 25;
Figure 28 is that co-current regeneration softener valve of the present invention is at the normal working structural representation;
Figure 29 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 28;
Figure 30 is right moving, a fixed valve plate mated condition generalized section among Figure 28;
Figure 31 is that co-current regeneration softener valve of the present invention is at backwash working state structure schematic representation;
Figure 32 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 31;
Figure 33 is right moving, a fixed valve plate mated condition generalized section among Figure 31;
Figure 34 is inhaling salt work status architecture schematic representation for co-current regeneration softener valve of the present invention;
Figure 35 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 34;
Figure 36 is right moving, a fixed valve plate mated condition generalized section among Figure 34;
Figure 37 is just washing the working state structure schematic representation for co-current regeneration softener valve of the present invention;
Figure 38 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 37;
Figure 39 is right moving, a fixed valve plate mated condition generalized section among Figure 37;
Figure 40 is that counter-current regeneration softener valve of the present invention is at the normal working structural representation;
Figure 41 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 40;
Figure 42 is right moving, a fixed valve plate mated condition generalized section among Figure 40;
Figure 43 is that counter-current regeneration softener valve of the present invention is at backwash working state structure schematic representation;
Figure 44 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 43;
Figure 45 is right moving, a fixed valve plate mated condition generalized section among Figure 43;
Figure 46 is inhaling salt work status architecture schematic representation for counter-current regeneration softener valve of the present invention;
Figure 47 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 46;
Figure 48 is right moving, a fixed valve plate mated condition generalized section among Figure 46;
Figure 49 is just washing the working state structure schematic representation for counter-current regeneration softener valve of the present invention;
Figure 50 is moving, the fixed valve plate mated condition generalized section in a left side among Figure 49;
Figure 51 is right moving, a fixed valve plate mated condition generalized section among Figure 49.
(5) embodiment:
Embodiment one, Fig. 1~shown in Figure 14.This multipath water treatment control valve mainly comprises by the valve body that is connected with original water inlet, pure water inlet and sewage draining exit, and the spool that valve rod connects places valve body to constitute; The spool that described valve rod 4 connects places valve body 10 left and right two valve pockets; Described spool is that the moving valve plate 5 and the fixed valve plate 6,29 that adopt left and right two pairs of end faces to be sealed and matched mutually constitute; Described two moving valve plate 5 end faces are respectively to adopt groove and protruding chimeric connection the (Fig. 2-shown in Figure 5) with valve rod 4 end faces; For increasing water flow and free air space, on the fitting end face of described valve rod 4, be provided with volume groove 12; On the end face of described moving valve plate 5, be provided with one from center bore to the fan-shaped pylone 13 that extends to its edge (Fig. 4, shown in Figure 5).On the end face of described left fixed valve plate 6, be respectively equipped with water distributing pore 15, fan-shaped water inlet 14 and pollutant exhaust hole 16, because the fan shaped cross section area of described water inlet 14 is bigger, be to increase join strength, 14 the centre in the water inlet usually is provided with stiffening rib link to each other with left fixed valve plate 6 (shown in Figure 6).On the end face of described right fixed valve plate 29, be respectively equipped with down water distributing pore 17, fan-shaped water inlet 14, pollutant exhaust hole 16 and osculum 18 (shown in Figure 7).Upper and lower water distributing pore 15 and 17 on the described left and right fixed valve plate, last water distributing pore 19 and the following water distributing pore 20 by the left and right valve pocket of valve body is communicated with (Figure 10-shown in Figure 12) with upper water distributor attachment hole 36 and lower water-dispensing device attachment hole 21 respectively; Original water inlet 11 inner chambers of described valve body also are respectively equipped with into salt mouth 31 and 32 (Figure 13, shown in Figure 14); Describedly advance salt mouth 31 and be communicated with counter-current regeneration salt inlet 33; Describedly advance salt mouth 32 and be communicated with co-current regeneration salt inlet 34.Water inlet 14 on the described left and right fixed valve plate, pollutant exhaust hole 16 and osculum 18, the original water inlet 11 that is provided with valve body 10, sewage draining exit 9 and pure water inlet 8 are connected by runner and communicate respectively; Whole through holes that left and right moving valve plate 5 that is made of stupalith and fixed valve plate 6,29 end faces are provided with are distributed on the same turning radius and corresponding cooperation; Be connected with fixed connecting plate 7 (shown in Figure 8) respectively in fixed valve plate 6 lower ends; On the two ends end face of described fixed connecting plate 7, be respectively equipped with projection and seal ring, with fixed valve plate 6 and 29 and valve body 10 fixed connection and sealing.Said structure is the filter tap that water treatment is used.
Embodiment two, Figure 15-shown in Figure 16.The present invention repeats no more with embodiment's one same structure.What they were different is that 11 places are connected with salt valve 25 at described valve body original water inlet; Two salt input holes 30 of described salt valve 25, respectively with valve body on the salt mouth 31 and 32 that advances be communicated with (Figure 13~shown in Figure 14).On described left fixed valve plate 6 is provided with end face between water inlet 14 and the pollutant exhaust hole 16, have additional fan-shaped salt hole 23, the co-current regeneration softener valve that can use as water treatment.
Embodiment three, Figure 17-shown in Figure 180.The present invention repeats no more with embodiment's one same structure.What they were different is to be connected with salt valve 25 at original water inlet 11 places of described valve body; Two salt input holes 30 of described salt valve 25, respectively with valve body on the salt mouth 31 and 32 that advances be communicated with (Figure 13-shown in Figure 14).Be provided with on the end face of water inlet 14 and pollutant exhaust hole 16 at described right fixed valve plate 29, have additional fan-shaped salt hole 23.The both counter-current regeneration softener valves that can use as water treatment.
Embodiment four, Fig. 1-shown in Figure 180.The present invention can also be provided with attachment hole 35 and be communicated with (shown in Figure 13) with original water inlet 11 inner chambers on the foregoing description one or embodiment two or embodiment's three described valve bodies 10.Be used to install the water pressure detection device.
During use, (Figure 10, shown in Figure 19), valve body 10 links to each other with tank body 26 ports, places the center tube 28 of tank body 26 inner chambers and the lower water-dispensing device attachment hole 21 of valve body to join.The filtrate 27 that tank body 26 is built-in with according to the needs that purify former water, is selected active carbon or silica sand material for use usually.Work can be adopted manual or electronic respectively.Industrial water conditioning system adopts motor driven gear 2 usually, drive respectively and go up water distribution gear 1 and 3 rotations of following water distribution gear, stir left and right moving valve plate 5 by left and right valve rod 4 simultaneously, make it to carry out conversion, with the switching (Fig. 1-shown in Figure 7) that realizes the different operating state respectively with fixed valve plate 6 and the 29 mutual corresponding end face lead to the hole site that are sealed and matched.
Below in conjunction with accompanying drawing, narrate the working state of the present invention respectively as filter tap, co-current regeneration softener valve, counter-current regeneration softener valve.
When one, the present invention uses as filter tap, have proper functioning, backwash work and just washing three kinds of states of work.
1, filter tap proper functioning operating principle is referring to Fig. 1-Figure 14, Figure 19-shown in Figure 21.Undressed former water, by valve body original water inlet 11 (direction shown in Figure 19 arrow, below roughly the same), runner in its valve body enter the fan-shaped water inlet 14 of left fixed valve plate 6 and the volume groove 12 of the fan-shaped pylone 13 of the left moving valve plate 5 that is sealed and matched with it respectively and valve rod 4 in, again through the last water distributing pore 15 of left fixed valve plate 6 and the last water distributing pore 19 of valve body, enter in the filtrate 27 by upper water distributor 38 and to filter.Filtered water is gathered by lower water-dispensing device 39, in center tube 28 enters the following water distributing pore 17 of the following water distributing pore 20 of valve body and right fixed valve plate 29, and by the fan-shaped pylone 13 of the right moving valve plate that is sealed and matched with right fixed valve plate 29 and the volume groove 12 of valve rod, purifying waste water of big flow backflowed in the osculum 18 that enters right fixed valve plate, discharge by the pure water inlet 8 of valve body.(Figure 19-shown in Figure 21) realized impurity in the removal water, filters former water, exports the purpose that big flow is purified waste water.
2, filter tap backwash operation acts principle is referring to Fig. 1-Figure 14, Figure 22-shown in Figure 24.After filter tap proper functioning a period of time, the water purification of output stops up filtrate owing to containing too much impurity deposition in the filtrate, occurs minimizing of output net water flux and water pressure difference significantly and descends, and needs the filtrate 27 in the tank body 26 is carried out backwash.This moment, operating electrical machines drove water distribution gear 1 and following water distribution gear 3 respectively by gear 2, drove left and right two valve rods 4 and moving valve plate 5 and turned to the backwash working position.From the former water of original water inlet 11 through the input of valve body inner flow passage, by the fan-shaped water inlet 14 of the large size of right fixed valve plate, enter in the volume groove 12 of the right moving valve plate fan-shaped pylone 13 that is sealed and matched with it respectively and valve rod, and backflow under the following water distributing pore 17 that enters right fixed valve plate and the valve body in the water distributing pore 20 along right moving valve plate fan-shaped pylone 13, after center tube 28 enters filtrate 27 from lower water-dispensing device 39, filtrate 27 is carried out big continuously flow backwash.The sewage that contains impurity through backwash, pass through the last water distributing pore 15 of upper water distributor 38, the last water distributing pore 19 of valve body, left fixed valve plate respectively, left side moving valve plate fan-shaped pylone 13 and valve rod volume groove 12, backflow and enter in the fan-shaped pollutant exhaust hole 16 of left fixed valve plate, sewage draining exit 9 by valve body is discharged (Figure 22-shown in Figure 24), till the water cleaning of discharging.
3, filter tap is just washing the operation acts principle, Fig. 1-Figure 14, Figure 25-and shown in Figure 27.Operating electrical machines driven gear 2 is actuation gear 1,3 respectively, controlling left and right moving valve plate 5 is converted to and just washes the working position, from the former water of valve body original water inlet 11 through its valve body inner flow passage input, enter left fixed valve plate water inlet 14, left moving valve plate through hole 13, left valve rod volume groove 12 respectively, again along left moving valve plate through hole 13, with former water water distributing pore 19 on water distributing pore 15, the valve body from the left fixed valve plate, backflow to enter in the filtrate 27 and just wash to upper water distributor 38.Sewage through washing is through the collection of lower water-dispensing device 39, along center tube 28 respectively by water distributing pore 17 under water distributing pore under the valve body 20, the right fixed valve plate, enter right moving valve plate through hole 13 and right valve rod volume groove 12, the pollutant exhaust hole 16 that sewage is backflowed and enters right fixed valve plate, by discharging (Figure 25-shown in Figure 27) in the sewage draining exit 9 of valve body, till water quality reaches qualified requirement.Thereafter control motor gear 2, drive upper and lower water distribution gear 1,3 respectively and turn to the filter tap normal working.
When two, the present invention uses as the co-current regeneration softener valve, have proper functioning, backwash work, inhale salt work and just washing four kinds of states of work.
1, the operating principle of co-current regeneration softener valve proper functioning, Fig. 1-Figure 16, Figure 28-shown in Figure 30.Present embodiment is with the operating principle of above-mentioned filter tap proper functioning identical (shown in Figure 21 with reference to figure 19-).What they were different is that filtrate 27 adopts ion exchange resin material.
2, co-current regeneration softener valve backwash operation acts principle, Fig. 1-Figure 16, Figure 31-shown in Figure 33.Present embodiment is with above-mentioned filter tap backwash operation acts principle identical (shown in Figure 24 with reference to figure 22-).
3, the co-current regeneration softener valve is inhaled the salt worker and is moved principle, Fig. 1-Figure 16, Figure 34-and shown in Figure 36.Control motor gear 2 drives upper and lower water distribution gear 1,3 rotations respectively and enters suction salt work position, and motor gear 2 driven gears 24 are opened salt valves 25.The salt hole 23 (shown in Figure 16) that this moment, valve body left side fixed valve plate 6 was provided with is communicated with the co-current regeneration salt hole 34 on the valve body.Original water inlet 11 places at valve body are connected with salt valve 25 (shown in Figure 15), the fluidic device that is provided with by salt valve 25, make salt solution respectively by valve body salt inlet 32, co-current regeneration salt inlet 34 (shown in Figure 14) and left fixed valve plate salt hole 23, enter in left moving valve plate through hole 13 and the left valve rod volume groove 12, again by water distributing pore 15 on the left fixed valve plate, water distributing pore 19 on the valve body, upper water distributor 38 enters in the filtrate 27, carry out resins exchange regeneration, after the reaction water that the salt solution replacement generates is gathered by lower water-dispensing device 39, enter under the right fixed valve plate the water distributing pore 17 through center tube 28 water distributing pore 20 under valve body, again by right moving valve plate through hole 13, right valve rod volume groove 12, backflowing enters in the right fixed valve plate pollutant exhaust hole 16, and discharges (shown in Figure 34) by the sewage draining exit 9 of valve body.
4, the co-current regeneration softener valve is just washing the operation acts principle, Fig. 1-Figure 16, Figure 37-and shown in Figure 39.Present embodiment is just being washed operation acts principle identical (shown in Figure 27 with reference to figure 25-) with above-mentioned filter tap.
After treating that positive sparge water matter is up-to-standard, the control motor drives upper and lower water distribution gear and salt valve gear respectively, the salt valve is opened once more to the salt case be filled to water completely.Control again motor respectively actuation gear enter normal operation position.
When three, the present invention uses as the counter-current regeneration softener valve, have proper functioning, backwash work, inhale salt work and just washing four kinds of states of work.
1, counter-current regeneration softener valve proper functioning operating principle, Fig. 1-Figure 14, Figure 17, Figure 18, Figure 40-shown in Figure 42.Present embodiment is with above-mentioned co-current regeneration softener valve proper functioning operating principle identical (shown in Figure 30 with reference to figure 28-).
2, counter-current regeneration softener valve backwash operation acts principle, Fig. 1-Figure 14, Figure 17, Figure 18, Figure 43-shown in Figure 45.Present embodiment is with above-mentioned co-current regeneration softener valve backwash operation acts principle identical (shown in Figure 33 with reference to figure 31-).
3, the counter-current regeneration softener valve is inhaled the salt worker and is moved principle, Fig. 1-Figure 14, Figure 17, Figure 18, Figure 46-and shown in Figure 48.Control motor gear 2 drives respectively, following water distribution gear 1,3 are converted to suction salt work position, motor also drives 24 work of salt valve gear all the time, this moment, right fixed valve plate salt hole 23 was communicated with valve body counter-current regeneration salt inlet 33, the fluidic device that is provided with by salt valve 25, make salt solution pass through valve body salt inlet 31, counter-current regeneration salt inlet 33 (shown in Figure 14) and right fixed valve plate salt hole 23, enter in right moving valve plate through hole 13 and the right valve rod volume groove 12, again respectively by water distributing pore 17 under the right fixed valve plate, water distributing pore 20 under the valve body, center tube 28, enter filtrate 27 from lower water-dispensing device 39, carry out resins exchange regeneration, salt solution is replaced the reaction water that generates, by the last water distributing pore 19 of upper water distributor 38 from valve body, water distributing pore 15 on the fixed valve plate of a left side, the through hole of left side moving valve plate 6 and the volume groove of left valve rod 4, backflowing enters left fixed valve plate pollutant exhaust hole 16, discharges (shown in Figure 46) by the sewage draining exit 9 of valve body.
4, the counter-current regeneration softener valve is just washing the operation acts principle, shown in Fig. 1-Figure 14, Figure 17, Figure 18, Figure 49-Figure 51.Present embodiment is just being washed operation acts principle identical (shown in Figure 39 with reference to figure 37-) with above-mentioned co-current regeneration softener valve.
The above only is a preferred implementation of the present invention.Be noted that for the person of ordinary skill of the art; under the prerequisite that does not break away from the principle of the invention; need not other technical characteristics that the process creative work just can be associated; can also make some modification and improvement; these variations obviously all should be considered as equivalent feature, all belong within the protection domain of patent of the present invention.