CN106609868B - One kind of multiple fluid periodicity directional stream-guidance devices - Google Patents

Abstract

The invention relates to a periodic directional flow guide device for multiple fluids, which includes three stators and a rotor; two of the three stators are thick-walled pipe structures with a smaller diameter end and a flange, and the other stator is a smaller diameter stator. Large thick-walled tube structure; the rotor is a cylinder-double cone-cylinder or cylinder-cylinder-cylinder structure, which is rotatably arranged in the space surrounded by three stators; inside the third stator is provided Multiple stator distribution channels and multiple stator assembly channels; multiple circumferential channels are arranged at intervals on the cylindrical surface of the rotor; multiple stator liquid supply channels and multiple stator liquid discharge channels are arranged on the cylindrical tubes of the first and second stators Channels; multiple rotor distribution channels, multiple rotor collection channels and multiple rotor communication channels are arranged inside the rotor.

Description

A kind of periodic directional guide device for multiple fluids

technical field

The invention relates to a periodic directional guide device for multiple fluids, which is used for directional guide of multiple liquids to independent targets through separate flow paths.

Background technique

The multi-channel valve with the periodic directional flow function of various liquids is widely used in the process of physical, chemical and chromatographic analysis.

In 1953, U.S. Patent US2706532 disclosed the structure of the first multi-channel valve. Its structural characteristics are: (1) It includes two disc-shaped stators and a cylindrical rotor. In the same stator; (2) The opening connecting the rotor channel and the stator channel and the liquid supply and discharge circumferential channel are located on both ends of the rotor, and the rotor and the stator are sealed by two planes.

In 1959, the UOP company of the United States disclosed the structure of the first marketed multi-channel valve (US3040777). Its structural characteristics are: it includes a disc-shaped stator and a disc-shaped rotor, and the rotor and the stator are sealed by a flat seal. , the supply and discharge circumferential channels are concentrically distributed in one plane.

In 1986, the UOP company of the United States disclosed an ideal multi-channel valve structure (US4569371). Its structural characteristics are: (1) It includes three cylindrical tubular stators and a cylindrical rotor, and the stator diversity channel is located in the middle of the large diameter stator. On the top, the stator liquid supply and discharge channels are located on the two stators with smaller diameters at both ends; the rotor channels are located in the cylinders with smaller diameters at both ends of the rotor, and the openings that communicate between the rotor channels and the stator channels are located in the cylinder with a larger diameter in the middle of the rotor face. (2) Three cylindrical seals are formed between the rotor and the stator, and the seal relies on the elastic force of the spring located in the channel opening.

In 1986, UOP Company of the United States disclosed another ideal multi-channel valve (US4574840) structure, which is similar to the structure disclosed by (US4569371), except that the seal between the rotor channel and the stator diversity channel is sealed by a cylindrical surface It is changed to a flat seal, and the rotor shaft is divided into two rotors.

In 1995, Advanced Separation Technologies Incorporated of the United States disclosed the second listed multi-channel valve structure (US5676826). This structure is composed of a stator and a rotor. There are only liquid supply and discharge channels on the stator, and there is no circular channel for liquid supply and discharge. Other functions of the multi-channel valve Rely on the synchronous rotation of the reactor and the rotor to complete.

In 2004, Puritech disclosed the third listed multi-channel valve structure (US6802970). Its structural features are: (1) It includes two disc-shaped stators, a cylindrical tubular stator and a cylindrical rotor, and the rotor is located at In the space surrounded by three stators; the stator liquid supply and discharge channels are located on the two disc-shaped stators at both ends, and the stator diversity channel is located on the cylindrical tubular stator in the middle; Between the disk-shaped stators; the opening where the rotor channel communicates with the stator diversity channel is located on the cylindrical or conical surface of the rotor. (2) Three seals are formed between the rotor and the stator: two flat seals and one cylindrical (or conical) seal.

In the above-mentioned patents, the defect of the structures of US4574840 and US4569371 is that there is an instantaneous backflow leakage in the sealing mode of the valve during the stepping process. The disadvantages of the structures disclosed in US3040777, US5676826 and US6802970 are that with the increase of the number of channels or/and the increase of channel diameter, the diameter and sealing area of the valve will increase sharply, and the manufacturing and sealing will face severe challenges. For example, for the US3040777 valve (5 reactors) with 7 passages and 24 ports, the maximum rotor diameter can only reach 4.5 feet at present. The structure disclosed in US5676826 faces challenges such as the synchronization of the rotation of the reactor and the valve, and the load limitation of the rotating carrier of the reactor.

To sum up, there is an urgent need for multi-channel rotary valves with smaller diameter, lighter weight, more channels or/and larger diameter channels, small sealing area, easier and more reliable sealing in the fields of physics, chemistry and chromatography. .

Contents of the invention

In view of the above problems, the object of the present invention is to provide a periodic orientation of various fluids with smaller diameter body, lighter weight, capable of accommodating more channels and/or larger diameter channels, small sealing area, easier and more reliable sealing deflector.

In order to achieve the above object, the present invention adopts the following technical solutions: a periodic directional deflector for multiple fluids, characterized in that it includes three stators and a rotor; two of the three stators are at the end with a smaller diameter The thick-walled tube structure with flanges is called the first stator and the second stator, and the other stator is a thick-walled tube structure with a larger diameter, called the third stator; the first stator and the second stator are located at Both ends of the third stator are connected by means of flanges on the first and second stators; the rotor is a cylinder-double cone-cylinder or cylinder-cylinder-cylinder structure, and the rotation is arranged by the The space enclosed by the three stators is positioned by bearings.

A plurality of stator distribution channels and a plurality of stator assembly channels are arranged inside the tube wall of the third stator; each of the stator distribution channels forms two openings on the tube wall surface, one of which is located on the tube wall The outer surface of the reactor is used to connect with the liquid inlet of a reactor, and the other opening is located on the side of the tube wall facing the rotor; each of the stator collection channels forms two openings on the tube wall surface, One of the openings is located on the outer side of the tube wall for connecting with a liquid outlet of a reactor, and the other opening is located on the side of the tube wall facing the rotor.

The cylindrical surface on both sides of the rotor is provided with a plurality of circumferential grooves at intervals, and each of the circumferential grooves and the inner walls of the first and second stator tube walls form a circumferential channel. In the first stator The circumferential channel on one side is used for the liquid supply circumferential channel, and the circumferential channel on the side of the second stator is used for the liquid discharge circumferential channel.

A plurality of stator liquid supply channels are arranged on the cylindrical tube of the first stator, the inner end of each stator liquid supply channel communicates with a liquid supply circumferential channel, and the outer end is used to connect with the liquid supply storage tank; A plurality of stator drainage channels are arranged on the cylindrical tube of the second stator, the inner end of each stator drainage channel communicates with a drainage circumferential channel, and the outer end is used to connect with a drainage storage tank.

A plurality of rotor distribution channels and a plurality of rotor assembly channels are arranged inside the rotor, one end of each rotor distribution channel communicates with a liquid supply circumferential channel leading to the stator liquid supply channel, and the other end is connected to the stator liquid supply channel. One side of the rotor facing the third stator is opened and connected to one of the stator distribution passages; one end of each of the rotor collection passages communicates with a circumferential passage leading to the stator liquid discharge passage, and the other end is connected to the rotor passage. An opening is formed on the side facing the third stator and connected to one of the stator collection passages; a plurality of rotor communication passages are arranged inside the cylinder or cone with a larger diameter in the middle of the rotor, each of the rotor communication passages is along the The axes of the rotors are arranged in parallel, one end of which is open on the side of the rotor facing the third stator and is connected to one of the stator distribution passages, and the other end is on the side of the rotor facing the third stator An opening is formed and docked with one of the stator collection passages.

Sealing rings are arranged on both sides of each of the circumferential passages, and each of the sealing rings is arranged in an annular groove provided on the cylindrical surface of the rotor.

A seal is provided between the third stator and the middle part of the rotor, and the corresponding relationship between the sealing surface of the third stator and the sealing surface of the middle part of the rotor is stator cylindrical surface-rotor double conical surface or stator double conical surface-rotor cylindrical surface, The taper of the cone is a conical structure with a taper of 5° to 70°, preferably 30° to 40°.

In the device, the flow direction of a single liquid is: stator liquid supply channel → liquid supply circular channel → rotor distribution channel → stator distribution channel 0 → reactor 0 → stator assembly channel 0 → rotor communication channel 0 → stator distribution channel 1 → reaction Device 1→stator collection channel 1→rotor communication channel 1→stator distribution channel 2→reactor 2→stator collection channel 2→circumferential drainage channel→stator drainage channel.

The number of liquids that can be diverted by the device is 1-20, and 1-10 are commonly used.

On the single flow pipeline of the device, the sum of the stator liquid supply channel, the liquid supply circumferential channel, the rotor distribution channel, the stator distribution channel, the rotor communication channel, the stator collective channel, the rotor collective channel, the liquid discharge circular channel and the stator liquid discharge channel The cross-sectional areas are equal; the number of circumferential channels for liquid supply or the number of circumferential channels for liquid discharge is greater than or equal to the number of liquid types; the number of stator liquid supply channels or the number of stator drainage channels is greater than or equal to the number of The number of circumferential channels for liquid or the number of circumferential channels for liquid discharge; the number of rotor distribution channels or the number of rotor collection channels is greater than or equal to the number of circumferential channels for liquid supply or the number of circumferential channels for liquid discharge Number of circular channels.

The number of reactors is 1 to 10 times the number of rotor distribution channels or the number of rotor assembly channels.

The number of reactors is 1 to 3 times the number of rotor distribution channels or the number of rotor assembly channels.

The material of the sealing member is one of rubber, polyurethane, polyamide, polyoxymethylene, polyethylene, polypropylene, ultra-high molecular weight polyethylene, polyvinyl fluoride, and PEEK.

The material of the stator and the rotor is metal material, plastic or composite material of plastic covered metal.

The materials of the stator and rotor are titanium or stainless steel.

Due to the adoption of the above technical scheme, the present invention has the following advantages: the present invention distributes the stator liquid supply channel, the stator liquid discharge channel, the stator distribution channel and the stator assembly channel in different areas of space, and the same radius as the supply and discharge circular channels The shaft arrangement provides a fluid directional guide device with smaller diameter, lighter weight, more channels and/or larger diameter channels, small sealing area, easier and more reliable sealing, which can meet the physical, Practical needs in chemistry and chromatography-related fields.

Description of drawings

Fig. 1 is a schematic longitudinal sectional view of the present invention along the distribution channel of the rotor;

Fig. 2 is a plane layout diagram of the stator distribution channels of the present invention in the third stator;

Fig. 3 is a schematic longitudinal sectional view of the present invention along the rotor communication channel;

Fig. 4 is a cross-sectional schematic diagram of the communication level of the rotor along the stator-rotor distribution channel of the present invention;

Fig. 5 is a schematic longitudinal sectional view along the distribution channel of the rotor according to another embodiment provided by the present invention;

Fig. 6 is an expanded schematic view of the circumferential surface of the rotor distribution channel of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, the present invention includes stators 11, 12, 13 and rotor 14, wherein, the first stator 11 includes a band flange 15 and a thick-walled pipe 16, and the second stator 12 includes a flange 17 and a Thick-walled pipe 18; rotor 13 is cylinder 19-double cone 20-cylinder 21 structure, and rotor 14 is positioned on first stator 11 and second stator 12 by bearing 30, is rotatably arranged on by first stator 11, In the space enclosed by the second stator 12 and the third stator 13 .

A plurality of stator distribution passages 22 and a plurality of stator assembly passages 23 are arranged inside the third stator 13; each stator distribution passage 22 is radially and uniformly distributed in the same section of the third stator 13 (as shown in FIG. 2 ), Each stator distribution channel 22 forms two openings on the surface of the third stator 13, one of which is located on the outer side of the third stator 13, and is used to connect with the liquid inlet of a reactor (target), and the other opening is located on the third stator 13. The three stators 13 face the side of the rotor 14; each stator assembly channel 23 is radially evenly distributed in the same section of the third stator 13, and each stator assembly channel 23 forms two openings on the surface of the third stator 13, one of which is Located on the outer side of the third stator 13 , it is used to connect with a liquid outlet of a reactor, and the other opening is located on the side of the third stator 13 facing the rotor 14 .

A plurality of circumferential grooves are arranged at intervals on the cylindrical surfaces of the two small-diameter cylinders 19 and 21 of the rotor 14 , and the circumferential grooves and the inner wall of the first stator 11 or the second stator 12 enclose a plurality of circumferential passages 24 . A plurality of stator liquid supply passages 25 are arranged on the tube wall 16 of the first stator 11, wherein, the inner end of each stator liquid supply passage 25 communicates with a circumferential passage 24, and the outer end is used to communicate with the liquid supply storage tank (Fig. not shown in ) connection; on the tube wall 18 of the second stator 12, a plurality of stator drain channels 26 are arranged, and the inner end of each stator drain channel 26 communicates with a circumferential channel 24, and the outer end is used for draining A storage tank (not shown in the figure) is connected.

The interior of the rotor 14 is provided with a plurality of rotor distribution passages 27, a plurality of rotor collection passages 28 and a plurality of rotor communication passages 29, wherein one end of each rotor distribution passage 27 is connected to a circumferential passage 24 leading to the stator liquid supply passage 25 In communication, the other end forms an opening on the side of the rotor 14 facing the third stator 13 and connects with a stator distribution channel 22 . One end of each rotor assembly channel 28 communicates with a circumferential channel 24 leading to the stator drain channel 26 , and the other end forms an opening on the side of the rotor 14 facing the third stator 13 and connects with a stator assembly channel 23 . Each rotor communication channel 29 is arranged in parallel along the axis of the rotor 14, one end of which is open on the side of the rotor 14 facing the third stator 13 and is connected to a stator distribution channel 22, and the other end is on the side of the rotor 14 facing the third stator 13 The side forms an opening and abuts with a stator collection channel 23 (FIG. 3). As shown in Fig. 1, Fig. 3 and Fig. 4, the rotor distribution channel 27 and the rotor collection channel 28 are evenly distributed on a coaxial circumference of the rotor 14, and the rotor communication channel 29 is distributed in a cone in the middle of the rotor 14, which is the same as the rotor 14. on the large diameter circumference of the shaft.

In the above embodiment, a conical non-metallic seal 34 is provided between the third stator 13 and the middle part 20 of the rotor 14, the sealing surface 33 of the third stator 13 is a cylindrical surface, and the sealing surface 34 of the middle part 20 of the rotor 14 It is a double conical surface with a taper of 5° to 70°, preferably 30° to 40°.

As shown in Figure 5, in another embodiment provided by the present invention, the sealing surface 34 of the middle part 20 of the rotor 14 is a cylindrical surface, and the sealing surface 33 of the third stator 14 is a double conical surface with a taper of 5°- 70°, preferably 30°-40°.

In the above-mentioned implementation, the present invention also includes a shaft (not shown in the figure), one end of the shaft is fastened to any end of the rotor 14, and the other end of the shaft is connected to the drive motor or cylinder through a reducer to drive the rotor 14 to achieve step-by-step. into the spin.

In the above-mentioned embodiment, a liquid-tight sealing ring 31 is provided on both sides of each of the circumferential channels, and each of the sealing rings is arranged in an annular groove 32 provided on the small-diameter cylindrical surface of the rotor 14 to seal Ring 31 is, but not limited to, "O" shaped, rectangular, "K" shaped, "COP" shaped, and any combination thereof.

When the rotor 14 of the present invention is stepping and rotating, the connection between the rotor distribution channel 27 on the rotor 14, the rotor communication channel 29 and the stator distribution channel 22 on the third stator 14 and the rotor collection channel 28 on the rotor 14, the rotor communication channel 29 and the stator assembly channel 23 on the third stator 14 will change, causing each fluid to change its destination (reactor). After the step displacement, the interconnected logical relationship between the liquid supply storage tank, the reactor and the liquid discharge storage tank remains unchanged, and only the connected reactors are changed. This change is caused by the step displacement of the rotor. It is realized by switching the position of the distribution channel 22 and the stator collection channel 23. For example, when stepping from "0" position to "1" position, n0 reactors, stator distribution channels and stator collection channels are all changed from 0~j positions to 1~j+1 positions.

The number of liquid types n0 is 1 to 20, usually 1 to 8; the number of reactors n3 is 1 of the number of rotor distribution channels n2-11 or the number of rotor collection channels n2-12. ~10 times, commonly used 1~3 times. The number of reactors n3 = the number of stator distribution channels n1-11 = the number of stator collection channels n1-12 = the number of rotor distribution channels n2-11 + the number of rotor connection channels n2-2 = the number of rotor collection channels n2-11 + the number of rotor connection channels n2 -2. Number of liquid types n0≤Number of stator liquid supply channels n1-21≥Number of liquid supply circular channels n4-1≤Number of rotor distribution channels n2-11=Number of stator distribution channels n2-11-Number of rotor connection channels n2-2=Number of reactors n1-the number of rotor connection channels n2-2=the number of stator collection channels n2-12-the number of rotor connection channels n2-2=the number of rotor collection channels n2-12≥the number of drainage circular channels n4-2≤the number of stator drainage channels n1- twenty two.

When the rotor 14 and the stators 11, 12 and 13 are in a specific position of docking communication, such as "0" position, n0 stator liquid supply channels 25→n0 liquid supply circumferential channels 24→n0 rotor distribution channels 27→n0 (0~j, j=n0-1) stator distribution channel 22→n0 (0~j, j=n0-1) reactors→n0 (0'~j', j'=n0-1) stator collection Channel 23 → n0 rotor collection channels 28 → n0 liquid discharge circular channels 24 → n0 stator liquid discharge channels 26 are connected to each other; the liquid supply ports of n3 reactors are connected with n3 stator distribution channels 22, and the reactors The liquid discharge port communicates with →n3 stator collection channels 23 , and the n3-n0 rotor communication channels 29 connect the n3-n0 stator distribution channels 22 with the n3-n0 stator collection channels 23 .

In the above implementation, as shown in Figure 6, one unit is misplaced between the rotor distribution channel 27 and the rotor collection channel 28. For example, taking the diversion device with 6 channels and 18 ports as an example, one unit contains 3 reactors, occupying an area of 60° , the corresponding relationship between the rotor distribution channel 27 and the rotor assembly channel 28 is 1-2', 2-3', 3-4', 4-5', 5-6' and 6-1'.

In the above embodiment, the single liquid flow direction is: stator liquid supply channel 25 → liquid supply circumferential channel 24 → rotor distribution channel 27 → stator distribution channel 22-0 → reactor 0 → stator collection channel 23-0 → rotor communication channel 29 -0→stator distribution channel 22-1→reactor 1→stator collection channel 23-1→rotor communication channel 29-1→stator distribution channel 22-2→reactor 2→stator collection channel 23-2→rotor collection channel 28 → Drainage circumferential channel 24 → Stator drainage channel 26 .

In the above embodiment, on the single flow pipeline, the stator liquid supply channel 25, the liquid supply circumferential channel 24, the rotor distribution channel 27, the stator distribution channel 22, the rotor communication channel 29, the stator collection channel 23, the rotor collection channel 28, the discharge The total cross-sectional area of the circumferential channel 24 and the stator drainage channel 26 is equal. The number of circumferential channels used for liquid supply or the number of circumferential channels used for liquid discharge is greater than or equal to the number of liquid types; the number of stator liquid supply channels or the number of stator liquid discharge channels is greater than or equal to the number of circumferential channels used for liquid supply or used for liquid discharge The number of circumferential channels; the number of rotor distribution channels or the number of rotor collection channels is greater than or equal to the number of circumferential channels for liquid supply or the number of circumferential channels for liquid discharge.

In the above-mentioned embodiment, the material of the sealing ring 31 and the conical non-metallic seal 35 is (but not limited to) rubber (nitrile rubber, fluorine rubber, silicon rubber, polyacrylate rubber, ethylene-propylene rubber, cloth Rubber), polyurethane, polyamide, polyoxymethylene, polyethylene, polypropylene, ultra-high molecular weight polyethylene, polyvinyl fluoride, PEEK, etc., and their composite materials.

In the above-mentioned embodiment, the manufacturing materials of stators 11, 12, 13 and rotor 14 are (but not limited to) titanium, stainless steel, Cr series (400 series), Cr-Ni series (300 series), Cr-Mn-Ni series ( 200 series) and its precipitation hardening series and other metal materials, polyamide, polyoxymethylene, polyethylene, polypropylene, ultra-high molecular weight polyethylene, polyvinyl fluoride, PEEK and other plastics, and plastic-coated metal composite materials.

In the above-mentioned embodiment, the reactor is a hollow container, and the filling in the container is (but not limited to) various chromatographic fillers (such as silica gel, bonded silica gel, polymers, biological glue, etc.), adsorbents, catalysts, filters, etc. that need to be regenerated. Medium, etc., and solid-phase primers for liquid-solid reactions that require periodic replacement of liquid-phase reactants.

The present invention is only described with the above-mentioned embodiment, and the structure, installation position and connection of each component can be changed. On the basis of the technical solution of the present invention, any improvement or equivalent transformation of individual components according to the principle of the present invention shall not be excluded from the protection scope of the present invention.

Claims (10)

1. one kind of multiple fluid periodicity directional stream-guidance devices, it is characterised in that：Including three stators and a rotor；Described three In a stator wherein two be the flanged (FLGD) thick-walled pipe structure in the smaller one end of diameter, referred to as the first stator and the second stator, it is another A stator is the thick-walled pipe structure being relatively large in diameter, referred to as third stator；First stator and the second stator are located at the third The both ends of stator, by flanged joint；The rotor is cylinder-double cone-cylinder or cylinder-cylinder-cylindrical structure, is turned It is dynamic to be arranged in the space surrounded by three stators, it is positioned by bearing；It is internally provided in the tube wall of the third stator A plurality of stator distribution channel and a plurality of stator Integration tunnel；Every stator distribution channel forms two in the tube wall surface Opening, one of opening are used to connect with the inlet of a reactor positioned at the lateral surface of the tube wall, another opening Positioned at the tube wall towards the side of the rotor；Every stator Integration tunnel forms two in the tube wall surface and opens Mouthful, one of opening is used to connect with the leakage fluid dram of a reactor positioned at the lateral surface of the tube wall, another opening position In the tube wall towards the side of the rotor；Multiple circumferential grooves are arranged at intervals on the cylindrical surface of the rotor both sides, often One circumferential groove surrounds a circumferential channel with the first and second stators tube wall inner wall, in first stator one The circumferential channel of side is used for feed flow circumferential channel, and the circumferential channel in second stator side is used for drain circumferential channel；? Be provided with a plurality of stator liquid feeding channel in the cylindrical tube of first stator, the inner end of every stator liquid feeding channel with one Feed flow circumferential channel communicates, and outer end with for liquid storage tank for connecting；It is a plurality of fixed to be provided in the cylindrical tube of second stator Sub- apocenosis passage, the inner end of every stator apocenosis passage are communicated with a drain circumferential channel, and outer end is used to store up with drain Tank connects；The internal rotor is provided with a plurality of rotor distribution channel and a plurality of rotor Integration tunnel, every rotor point The feed flow circumferential channel that the one end in cloth channel leads to the stator liquid feeding channel with one communicates, and the other end is in the rotor direction The side of third stator forms opening and is docked with a stator distribution channel；One end of every rotor Integration tunnel The circumferential channel for leading to the stator apocenosis passage with one communicates, and the other end is in the rotor towards the side shape of third stator It docks at opening and with a stator Integration tunnel；Inside the cylinder or cone that portion is relatively large in diameter in the rotor It is provided with a plurality of rotor communicating passage, every rotor communicating passage is arranged in parallel along the axis of the rotor, and one end exists The rotor forms opening towards the side of the third stator and is docked with a stator distribution channel, and the other end is in institute Rotor is stated to form opening towards the side of the third stator and dock with a stator Integration tunnel.

2. one kind of multiple fluid periodicity directional stream-guidance devices as described in claim 1, it is characterised in that：In single liquid stream Siphunculus road, the stator liquid feeding channel, feed flow circumferential channel, rotor distribution channel, stator distribution channel, rotor connection are logical Road, stator Integration tunnel, rotor Integration tunnel, the total cross-sectional area of drain circumferential channel and stator apocenosis passage are equal；For The circumferential channel number of feed flow or the circumferential channel number for being used for drain are equal to or more than class of liquids number；It is described fixed Sub- liquid feeding channel number or stator apocenosis passage number are equal to or more than for the circumferential channel number of feed flow or for drain The circumferential channel number；The rotor distribution channel number or rotor Integration tunnel number are equal to or more than the circumference for feed flow Port number or the circumferential channel number for being used for drain.

3. one kind of multiple fluid periodicity directional stream-guidance devices as claimed in claim 2, it is characterised in that：Class of liquids number is 1~20.

4. one kind of multiple fluid periodicity directional stream-guidance devices as described in claim 1, it is characterised in that：It is fixed in the third Sealing element, the correspondence of the sealing surface and sealing surface in the middle part of rotor of the third stator are set between the sub middle part with the rotor For stator cylindrical surface-rotor double cone face or stator double cone face-rotor cylinder surface.

5. one kind of multiple fluid periodicity directional stream-guidance devices as claimed in claim 4, it is characterised in that：The circular conical surface Taper is 5 °~70 °.

6. one kind of multiple fluid periodicity directional stream-guidance devices as claimed in claim 4, it is characterised in that：The circular conical surface Taper is 30 °~40 °.

7. one kind of multiple fluid periodicity directional stream-guidance devices as described in claim 1, it is characterised in that：The reactor number Amount is 1~10 times of rotor distribution channel number or rotor Integration tunnel number.

8. one kind of multiple fluid periodicity directional stream-guidance devices as claimed in claim 6, it is characterised in that：The reactor number Amount is 1~3 times of rotor distribution channel number or rotor Integration tunnel number.

9. one kind of multiple fluid periodicity directional stream-guidance devices as claimed in claim 5, it is characterised in that：The sealing element Material is one of rubber, polyurethane, polyamide, polyformaldehyde, polyethylene, polypropylene, polyvinyl fluoride, PEEK.

10. one kind of multiple fluid periodicity directional stream-guidance devices as described in claim 1, it is characterised in that：The stator and The material of rotor is the composite material of metal material, plastics or plastic overmold metal.