CN217340843U

CN217340843U - Nanofiltration membrane device for desalting and concentrating polyphenol drugs

Info

Publication number: CN217340843U
Application number: CN202220264918.7U
Authority: CN
Inventors: 路传波; 袁荃; 况黎; 王俊; 杨国庆
Original assignee: Bifei Separation Membrane Dalian Co ltd
Current assignee: Bifei Separation Membrane Dalian Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-09-02
Anticipated expiration: 2032-02-09

Abstract

The utility model relates to a nanofiltration membrane device for desalting and concentrating polyphenol drugs, which comprises a frame and a main body system arranged on the frame, wherein the main body system comprises a first liquid passing pipe, a first filter, a first pressure pump, a second liquid passing pipe, a first tubular nanofiltration membrane, a second tubular nanofiltration membrane, a first liquid discharge pipe, a second liquid discharge pipe, a third liquid discharge pipe, a first handle valve, a second handle valve, a third handle valve and a first collecting pipe; one end of a first liquid through pipe is connected to a liquid inlet of a first filter, a liquid outlet of the first filter is connected with a liquid inlet of a first pressure pump, one end of a second liquid through pipe is connected to a liquid outlet of the first pressure pump, and the other end of the second liquid through pipe is closed; the utility model discloses by a wide margin simplified process flow in order effectively to shorten the concentrated time of desalination, and then showing the degeneration deactivation rate that has reduced the polyphenol medicine to fully improve the product rate of recovery, the concentrated process of desalination need not to consume other raw materialss moreover.

Description

Nanofiltration membrane device for desalting and concentrating polyphenol drugs

Technical Field

The utility model relates to a be used for concentrated filter membrane device of receiving of polyphenol medicine desalination.

Background

Polyphenols are a group of diverse compounds naturally present in leaves, stems, roots, flowers and seeds of plants, and raw liquor obtained from natural plants contains not only polyphenols, but also a large amount of plant residues and other salt molecules; in order to obtain high concentration of polyphenol medicine, plant residue and other salt molecules must be removed; at present, the desalting and concentrating method suitable for the polyphenol drugs mainly comprises a solvent method, a biological enzymolysis method and an extraction method, but the process flows of the methods are complicated, a large amount of raw materials and time are consumed in the desalting and concentrating process, and once the desalting and concentrating time is too long, the denaturation and inactivation rate of the polyphenol drugs is greatly increased, so that the product recovery rate is low, and the method needs to be further improved.

SUMMERY OF THE UTILITY MODEL

To above-mentioned prior art's current situation, the utility model aims to solve the technical problem that a simplification process flow by a wide margin is provided in order effectively to shorten the concentrated time of desalination, and then is showing the denaturation deactivation rate that has reduced the polyphenol medicine and in order fully to improve the product recovery rate, need not to consume the concentrated nanofiltration membrane device that is used for the polyphenol medicine desalination of other raw materials moreover.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a nanofiltration membrane device for desalting and concentrating polyphenol medicaments is characterized by comprising a rack and a main body system arranged on the rack, wherein the main body system comprises a first liquid passing pipe, a first filter, a first pressure pump, a second liquid passing pipe, a first tubular nanofiltration membrane, a second tubular nanofiltration membrane, a first liquid discharge pipe, a second liquid discharge pipe, a third liquid discharge pipe, a first handle valve, a second handle valve, a third handle valve and a first collecting pipe; one end of the first liquid through pipe is connected with a liquid inlet of a first filter, a liquid outlet of the first filter is connected with a liquid inlet of a first pressure pump, one end of the second liquid through pipe is connected with the liquid outlet of the first pressure pump, the other end of the second liquid through pipe is closed, the first tubular nanofiltration membranes comprise a plurality of first tubular nanofiltration membranes which are transversely fixed in the rack and sequentially arranged from top to bottom, the left-end membrane external ports of the first tubular nanofiltration membranes are connected in parallel on the second liquid through pipe, the second tubular nanofiltration membranes comprise a plurality of second tubular nanofiltration membranes which are transversely fixed in the rack and are arranged from top to bottom in sequence, the number of the second tubular nanofiltration membranes is equal to that of the first tubular nanofiltration membranes, and the second tubular nanofiltration membranes are respectively arranged behind the first tubular nanofiltration membranes; the right end membrane external ports of the second tubular nanofiltration membranes and the right end membrane external ports of the first tubular nanofiltration membranes are connected in parallel to a first drain pipe, one end of the first drain pipe is open, the other end of the first drain pipe is closed, and the first handle valve is arranged on the first drain pipe and is positioned on the downstream side of each first tubular nanofiltration membrane and each second tubular nanofiltration membrane; the left-end membrane external ports of the second tubular nanofiltration membranes are connected in parallel to a second liquid discharge pipe, one end of the second liquid discharge pipe is open, the other end of the second liquid discharge pipe is closed, and the second handle valve is arranged on the second liquid discharge pipe and is positioned on the downstream side of the second tubular nanofiltration membranes; the right end membrane external ports of the rest second tubular nanofiltration membranes are connected in parallel to a third liquid discharge pipe, one end of the third liquid discharge pipe is open, and the other end of the third liquid discharge pipe is closed; the third handle valve is arranged on the third liquid discharge pipe and located on the downstream side of each second tubular nanofiltration membrane, one is located at the same height, the first tubular nanofiltration membrane and one are further provided with a first collecting branch pipe on the right side of each second tubular nanofiltration membrane, one is located at the same height, an inner interface of the right end membrane of the first tubular nanofiltration membrane and one are further connected onto a corresponding first collecting branch pipe in parallel, and each of the first collecting branch pipes is inserted into one end of each first collecting branch pipe and is sealed at the other end of each first collecting branch pipe.

Preferably, the stand is further provided with a standby system, and the standby system comprises a third liquid passing pipe, a second filter, a second pressure pump, a fourth liquid passing pipe, a third tubular nanofiltration membrane, a fourth liquid discharge pipe, a fifth liquid discharge pipe, a sixth liquid discharge pipe, a fourth handle valve, a fifth handle valve, a sixth handle valve, a seventh liquid discharge pipe and a second collecting pipe; one end of the third liquid passing pipe is connected with a liquid inlet of the second filter, a liquid outlet of the second filter is connected with a liquid inlet of the second pressure pump, one end of the fourth liquid discharge pipe is connected with a liquid outlet of the second pressure pump, the other end of the fourth liquid discharge pipe is closed, the third tubular nanofiltration membranes are transversely fixed in the rack and are sequentially arranged from top to bottom, right end membrane external ports of the third tubular nanofiltration membranes are connected in parallel to a fourth liquid outlet pipe, the fourth tubular nanofiltration membranes comprise a plurality of the fourth tubular nanofiltration membranes which are transversely fixed in the rack and are arranged from top to bottom in sequence, the number of the fourth tubular nanofiltration membranes is equal to that of the third tubular nanofiltration membranes, and the fourth tubular nanofiltration membranes are respectively arranged behind the third tubular nanofiltration membranes; the left-end membrane external ports of a plurality of the fourth tubular nanofiltration membranes and the left-end membrane external ports of a plurality of the third tubular nanofiltration membranes are connected in parallel on a fourth liquid discharge pipe, one end of the fourth liquid discharge pipe is open, the other end of the fourth liquid discharge pipe is closed, one end of a sixth liquid discharge pipe is inserted on the fourth liquid discharge pipe, the other end of the sixth liquid discharge pipe is open, and a sixth handle valve is arranged on the sixth liquid discharge pipe; the left-end membrane external interfaces of the rest of the fourth tubular nanofiltration membranes are connected in parallel to a fifth liquid discharge pipe, one end of the fifth liquid discharge pipe is open, and the other end of the fifth liquid discharge pipe is closed; the fourth handle valve is arranged on a fifth liquid discharge pipe and is positioned on the downstream side of each fourth tubular nanofiltration membrane, the right end membrane external interfaces of the fourth tubular nanofiltration membranes are connected in parallel on a seventh liquid discharge pipe, one end of the seventh liquid discharge pipe is open, the other end of the seventh liquid discharge pipe is closed, and the fifth handle valve is arranged on the seventh liquid discharge pipe and is positioned on the downstream side of the fourth tubular nanofiltration membranes; the left side of the fourth tubular nanofiltration membrane is also provided with a second collection branch pipe, the left end of the third tubular nanofiltration membrane is connected with an inner port of the left end of the fourth tubular nanofiltration membrane in parallel to a corresponding second collection branch pipe, one end of each second collection branch pipe is connected with a second collection pipe in an inserting manner, and the other end of each second collection branch pipe is sealed.

Preferably, a seventh handle valve is further arranged between the liquid outlet of the first filter and the liquid inlet of the first pressure pump, a first electric valve is further arranged on the second liquid passing pipe, and the first electric valve is arranged on the upstream side of each first tubular nanofiltration membrane.

Preferably, an eighth handle valve is further arranged between the liquid outlet of the second filter and the liquid inlet of the second pressure pump, a second electrically operated valve is further arranged on the fourth liquid outlet pipe, and the second electrically operated valve is arranged on the upstream side of each third tubular nanofiltration membrane.

Preferably, an overflow pipe is further inserted into the first liquid discharge pipe, and a ninth handle valve is further arranged on the overflow pipe.

Preferably, a first bypass pipe is further inserted into the first collecting pipe and is arranged at the downstream side of each first collecting branch pipe, a third electric valve is further arranged on the first bypass pipe, a second bypass pipe is further inserted into the first bypass pipe, the insertion position of the second bypass pipe is arranged at the upstream side of the third electric valve, and a tenth handle valve is further arranged on the second bypass pipe.

Preferably, a third side connection pipe is further inserted into the second collection pipe, the third side connection pipe is arranged on the downstream side of each second collection branch pipe, a fourth electrically operated valve is further arranged on the third side connection pipe, a fourth side connection pipe is further inserted into the third side connection pipe, the insertion position of the fourth side connection pipe is arranged on the upstream side of the fourth electrically operated valve, and an eleventh handle valve is further arranged on the fourth side connection pipe.

Preferably, a first exhaust pipe is further inserted into the first collecting pipe, an insertion position of the first exhaust pipe is arranged on the downstream side of the first bypass pipe, and a first ball valve is further arranged on the first exhaust pipe.

Preferably, a second exhaust pipe is further inserted into the second collecting pipe, the insertion position of the second exhaust pipe is arranged on the downstream side of the third bypass pipe, and a second ball valve is further arranged on the second exhaust pipe.

Compared with the prior art, the utility model has the advantages of: the utility model discloses with the help of receiving the specific filtering capability of filter membrane and come plant residue and the salt molecule in the polyphenol stoste, and then by a wide margin simplified process flow in order effectively to shorten the concentrated time of desalination, and then showing the degeneration deactivation rate that has reduced the polyphenol medicine to fully improve the product rate of recovery, the concentrated process of desalination need not to consume other raw materialss moreover.

Drawings

FIG. 1 is a left front side structure view of the present invention;

fig. 2 is a right rear side structural view of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1-2, a nanofiltration membrane device for desalination and concentration of polyphenol compounds comprises a frame 3 and a main system 1 disposed on the frame 3, wherein the main system 1 comprises a first liquid passing pipe 11, a first filter 12, a first pressure pump 13, a second liquid passing pipe 14, a first tubular nanofiltration membrane 15, a second tubular nanofiltration membrane 17, a first liquid discharging pipe 16, a second liquid discharging pipe 18, a third liquid discharging pipe 111, a first handle valve 112, a second handle valve 19, a third handle valve 110, and a first collecting pipe 113; one end of the first liquid passing pipe 11 is connected to a liquid inlet of the first filter 12, a liquid outlet of the first filter 12 is connected to a liquid inlet of the first pressure pump 13, one end of the second liquid passing pipe 14 is connected to a liquid outlet of the first pressure pump 13, the other end of the second liquid passing pipe 14 is closed, the first tubular nanofiltration membranes 15 comprise a plurality of first tubular nanofiltration membranes 15, the first tubular nanofiltration membranes 15 are transversely fixed in the rack 3 and sequentially arranged from top to bottom, the left-end membrane external ports of the first tubular nanofiltration membranes 15 are connected in parallel to the second liquid passing pipe 14, the second tubular nanofiltration membranes 17 comprise a plurality of second tubular nanofiltration membranes 17, the second tubular nanofiltration membranes 17 are transversely fixed in the rack 3 and sequentially arranged from top to bottom, the number of the second tubular nanofiltration membranes 17 is equal to the number of the first tubular nanofiltration membranes 15, and the second tubular nanofiltration membranes 17 are respectively arranged behind the first tubular nanofiltration membranes 15; the right membrane external ports of the second tubular nanofiltration membranes 17 and the right membrane external ports of the first tubular nanofiltration membranes 15 are connected in parallel to the first drain pipe 16, one end of the first drain pipe 16 is open, the other end of the first drain pipe 16 is closed, and the first handle valve 112 is arranged on the first drain pipe 16 and is positioned at the downstream side of each first tubular nanofiltration membrane 15 and each second tubular nanofiltration membrane 17; the left-end membrane external ports of the second tubular nanofiltration membranes 17 are connected in parallel to a second liquid discharge pipe 18, one end of the second liquid discharge pipe 18 is open, the other end of the second liquid discharge pipe 18 is closed, and a second handle valve 19 is arranged on the second liquid discharge pipe 18 and is positioned on the downstream side of the second tubular nanofiltration membranes 17; the right membrane external ports of the rest second tubular nanofiltration membranes 17 are connected in parallel to a third liquid discharge pipe 111, one end of the third liquid discharge pipe 111 is open, and the other end of the third liquid discharge pipe 111 is closed; the third handle valve 110 is arranged on the third drain pipe 111 and is positioned at the downstream side of each second tubular nanofiltration membrane 17, the right sides of one first tubular nanofiltration membrane 15 and one second tubular nanofiltration membrane 17 which are positioned at the same height are also provided with a first collecting branch pipe 114, the right end in-membrane interface of the first tubular nanofiltration membrane 15 and the right end in-membrane interface of the second tubular nanofiltration membrane 17 which are positioned at the same height are connected in parallel to the corresponding first collecting branch pipe 114, one end of each first collecting branch pipe 114 is inserted into the first collecting pipe 113, and the other end of each first collecting branch pipe 114 is sealed.

The stand 3 is also provided with a standby system 2, and the standby system 2 comprises a third liquid passing pipe 21, a second filter 22, a second pressure pump 23, a fourth liquid passing pipe 24, a third tubular nanofiltration membrane 25, a fourth tubular nanofiltration membrane 27, a fourth liquid discharging pipe 28, a fifth liquid discharging pipe 29, a sixth liquid discharging pipe 214, a fourth handle valve 210, a fifth handle valve 213, a sixth handle valve 215, a seventh liquid discharging pipe 212 and a second collecting pipe 26; one end of the third liquid passing pipe 21 is connected to a liquid inlet of the second filter 22, a liquid outlet of the second filter 22 is connected to a liquid inlet of the second pressure pump 23, one end of the fourth liquid passing pipe 24 is connected to a liquid outlet of the second pressure pump 23, the other end of the fourth liquid passing pipe 24 is sealed, the third tubular nanofiltration membranes 25 comprise a plurality of third tubular nanofiltration membranes 25, the third tubular nanofiltration membranes 25 are transversely fixed in the rack 3 and sequentially arranged from top to bottom, right end membrane external ports of the third tubular nanofiltration membranes 25 are connected in parallel to the fourth liquid passing pipe 24, the fourth tubular nanofiltration membranes 27 comprise a plurality of fourth tubular nanofiltration membranes 27, the fourth tubular nanofiltration membranes 27 are transversely fixed in the rack 3 and sequentially arranged from top to bottom, the number of the fourth tubular nanofiltration membranes 27 is equal to the number of the third tubular nanofiltration membranes 25, and the fourth tubular nanofiltration membranes 27 are respectively arranged behind the third tubular nanofiltration membranes 25; the left-end membrane external ports of a plurality of upper fourth tubular nanofiltration membranes 27 and the left-end membrane external ports of a plurality of third tubular nanofiltration membranes 25 are connected in parallel on a fourth liquid discharge pipe 28, one end of the fourth liquid discharge pipe 28 is open, the other end of the fourth liquid discharge pipe 28 is closed, one end of a sixth liquid discharge pipe 214 is inserted on the fourth liquid discharge pipe 28, the other end of the sixth liquid discharge pipe 214 is open, and a sixth handle valve 215 is arranged on the sixth liquid discharge pipe 214; the left-end membrane external interfaces of the rest fourth tubular nanofiltration membranes 27 are connected in parallel to a fifth liquid discharge pipe 29, one end of the fifth liquid discharge pipe 29 is open, and the other end of the fifth liquid discharge pipe 29 is closed; the fourth handle valve 210 is arranged on the fifth drain pipe 29 and is positioned at the downstream side of each fourth tubular nanofiltration membrane 27, the right membrane external ports of the fourth tubular nanofiltration membranes 27 are all connected in parallel on a seventh drain pipe 212, one end of the seventh drain pipe 212 is open, the other end of the seventh drain pipe 212 is closed, and the fifth handle valve 213 is arranged on the seventh drain pipe 212 and is positioned at the downstream side of the fourth tubular nanofiltration membranes 27; the left sides of the third tubular nanofiltration membrane 25 and the fourth tubular nanofiltration membrane 27 which are positioned at the same height are provided with second collecting branch pipes 216, the left end inner membrane interface of the third tubular nanofiltration membrane 25 and the left end inner membrane interface of the fourth tubular nanofiltration membrane 27 which are positioned at the same height are connected in parallel to the corresponding second collecting branch pipes 216, one end of each second collecting branch pipe 216 is connected to the second collecting pipe 26 in an inserting mode, and the other end of each second collecting branch pipe 216 is sealed.

A seventh handle valve 115 is further arranged between the liquid outlet of the first filter 12 and the liquid inlet of the first pressure pump 13, a first electric valve 116 is further arranged on the second liquid through pipe 14, and the first electric valve 116 is arranged on the upstream side of each first tubular nanofiltration membrane 15.

An eighth handle valve 217 is further arranged between the liquid outlet of the second filter 22 and the liquid inlet of the second pressure pump 23, a second electric valve 218 is further arranged on the fourth liquid outlet pipe 24, and the second electric valve 218 is arranged on the upstream side of each third tubular nanofiltration membrane 25.

An overflow pipe 117 is further inserted into the first drainage pipe 16, and a ninth handle valve 118 is further disposed on the overflow pipe 117.

First collecting pipe 113 is further inserted with first bypass pipe 119, first bypass pipe 119 is disposed on the downstream side of each first collecting branch 114, third electric valve 120 is further disposed on first bypass pipe 119, second bypass pipe 121 is further inserted on first bypass pipe 119, the insertion position of second bypass pipe 121 is disposed on the upstream side of third electric valve 120, and tenth handle valve 122 is further disposed on second bypass pipe 121.

A third bypass pipe 219 is further inserted into the second collecting pipe 26, the third bypass pipe 219 is disposed at the downstream side of each second collecting branch pipe 216, a fourth electric valve 220 is further disposed on the third bypass pipe 219, a fourth bypass pipe 221 is further inserted into the third bypass pipe 219, an insertion position of the fourth bypass pipe 221 is disposed at the upstream side of the fourth electric valve 220, and an eleventh handle valve 222 is further disposed on the fourth bypass pipe 221.

A first exhaust pipe 123 is further inserted in the first collecting pipe 113, the insertion position of the first exhaust pipe 123 is arranged at the downstream side of the first bypass pipe 119, and a first ball valve 124 is further arranged on the first exhaust pipe 123.

A second exhaust pipe 223 is further inserted into the second collecting pipe 26, the insertion position of the second exhaust pipe 223 is arranged on the downstream side of the third bypass pipe 219, and a second ball valve 224 is further arranged on the second exhaust pipe 223.

The working principle is as follows:

the liquid medicine is connected to the other end of the first liquid passing pipe 11 through a pipeline, the first pressure pump 13 is started to work, the seventh handle valve 115 and the first electric valve 116 are opened, the liquid medicine in the first liquid passing pipe 11 flows through the first filter 12 under the action of the first pressure pump 13 and enters the second liquid passing pipe 14, the first filter 12 can filter out residues in the liquid medicine, then the liquid medicine in the second liquid passing pipe 14 enters each first tubular nanofiltration membrane 15 through the membrane external port at the left end of each first tubular nanofiltration membrane 15 to carry out membrane method concentration, and the liquid medicine is further divided into salt-containing residual liquid and filtrate containing polyphenol medicines; the filtrate containing the polyphenol drugs is positioned on the inner side of the membrane in each first tubular nanofiltration membrane 15 and enters each first collecting branch pipe 114, and then is converged into the first collecting pipe 113 and is discharged outwards through the open end of the first collecting pipe 113; the salt-containing residual liquid is positioned outside the membrane in each first tubular nanofiltration membrane 15 and enters into several second tubular nanofiltration membranes 17 above through the first drainage pipe 16 and is positioned outside the membrane, so that the separation is continued in the several second tubular nanofiltration membranes 17, and the separated filtrate containing the polyphenol-type drugs is also collected into the first collection pipe 113 through each first collection branch pipe 114; if the flow rate of the salt-containing residual liquid is large, the salt-containing residual liquid which has not yet been separated in the second tubular nanofiltration membranes 17 enters each of the rest second tubular nanofiltration membranes 17 through the second liquid discharge pipe 18 to continue the separation, and the separated filtrate containing the polyphenol-type drugs is also collected into the first collection pipe 113 through each first collection branch pipe 114; when the salt-containing residual liquid remains in the steps, the remaining salt-containing residual liquid enters a third liquid discharge pipe 111, and the remaining salt-containing residual liquid can be discharged outwards after a third handle valve 110 is opened; after the first handle valve 112 is opened, the salty residual liquid in the first liquid discharge pipe 16 can be discharged outwards; after the second handle valve 19 is opened, the salt-containing residual liquid in the second liquid discharge pipe 18 can be discharged outwards.

If the main body system 1 has a fault, the liquid medicine can be connected to the other end of the third liquid-passing pipe 21 through the pipeline, the second pressure pump 23 is started to work, the eighth handle valve 217 and the second electric valve 218 are opened, the fifth handle valve 213 is closed, the liquid medicine in the third liquid-passing pipe 21 flows through the second filter 22 and enters the fourth liquid-passing pipe 24 under the action of the second pressure pump 23, the second filter 22 can filter out residues in the liquid medicine, then the liquid medicine in the fourth liquid-passing pipe 24 enters each third tubular nanofiltration membrane 25 through the left-end membrane external port of each third tubular nanofiltration membrane 25 to perform membrane concentration, and then the liquid medicine is divided into salt-containing residual liquid and filtrate containing polyphenol drugs; the filtrate containing the polyphenol drugs is positioned on the inner side of the membrane in each third tubular nanofiltration membrane 25 and enters each second collecting branch 216, and then is converged into the second collecting pipe 26 and is discharged outwards through the open end of the second collecting pipe 26; the salt-containing residual liquid is positioned outside the membrane in each third tubular nanofiltration membrane 25 and enters into several of the second tubular nanofiltration membranes 17 above through a fourth liquid discharge pipe 28 and is positioned outside the membrane, so that the separation is continued in the fourth tubular nanofiltration membranes 27, and the separated filtrate containing the polyphenol-type drugs is also collected into the second collection pipe 26 through each second collection branch pipe 216; if the flow rate of the salt-containing residual liquid is large, the salt-containing residual liquid which has not yet been separated in the fourth tubular nanofiltration membranes 27 enters each of the remaining fourth tubular nanofiltration membranes 27 through the seventh drain pipe 212 to continue the separation, and the separated filtrate containing the polyphenol-type drugs is also collected into the second collection pipe 26 through each of the second collection branch pipes 216; when the salt-containing residual liquid remains in the steps, the remaining salt-containing residual liquid enters the fifth liquid discharge pipe 29, and the remaining salt-containing residual liquid can be discharged outwards after the fourth handle valve 210 is opened; after the fifth handle valve 213 is opened, the salt-containing residual liquid in the seventh drain pipe 212 can be discharged outwards; after the sixth handle valve 215 is opened, the salt-containing residual liquid in the fourth liquid discharge pipe 28 is discharged through the sixth liquid discharge pipe 214.

If the open end of the first collecting pipe 113 is blocked, after the third electric valve 120 is opened, the filtrate containing the polyphenol-type drugs in the first collecting pipe 113 can be output outwards through the other end of the first bypass pipe 119, and if the third electric valve 120 fails, the tenth handle valve 122 is opened, and the filtrate containing the polyphenol-type drugs in the first bypass pipe 119 can be output outwards through the other end of the second bypass pipe 121; if there is too much gas in first collection tube 113, first ball valve 124 may be opened to vent the gas outward via first vent tube 123.

If the open end of the second collecting pipe 26 is blocked, after the fourth electric valve 220 is opened, the filtrate containing the polyphenol-type drugs in the second collecting pipe 26 can be output outwards through the other end of the third bypass pipe 219, and if the fourth electric valve 220 fails, the eleventh handle valve 222 is opened, and the filtrate containing the polyphenol-type drugs in the third bypass pipe 219 can be output outwards through the other end of the fourth bypass pipe 221; if the gas in the second collecting pipe 26 is excessive, the second ball valve 224 may be opened to discharge the gas to the outside through the second gas discharge pipe 223.

The utility model discloses with the help of receiving the specific filtering capability of filter membrane and come plant residue and the salt molecule in the polyphenol stoste, and then by a wide margin simplified process flow in order effectively to shorten the concentrated time of desalination, and then showing the degeneration deactivation rate that has reduced the polyphenol medicine to fully improve the product rate of recovery, the concentrated process of desalination need not to consume other raw materialss moreover.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A nanofiltration membrane device for desalting and concentrating polyphenol medicaments is characterized by comprising a rack and a main body system arranged on the rack, wherein the main body system comprises a first liquid passing pipe, a first filter, a first pressure pump, a second liquid passing pipe, a first tubular nanofiltration membrane, a second tubular nanofiltration membrane, a first liquid discharge pipe, a second liquid discharge pipe, a third liquid discharge pipe, a first handle valve, a second handle valve, a third handle valve and a first collecting pipe; one end of the first liquid through pipe is connected with a liquid inlet of a first filter, a liquid outlet of the first filter is connected with a liquid inlet of a first pressure pump, one end of the second liquid through pipe is connected with the liquid outlet of the first pressure pump, the other end of the second liquid through pipe is closed, the first tubular nanofiltration membranes comprise a plurality of first tubular nanofiltration membranes which are transversely fixed in the rack and are sequentially arranged from top to bottom, the left-end membrane external interfaces of the first tubular nanofiltration membranes are connected in parallel on the second liquid through pipe, the second tubular nanofiltration membranes comprise a plurality of second tubular nanofiltration membranes which are transversely fixed in the rack and are arranged from top to bottom in sequence, the number of the second tubular nanofiltration membranes is equal to that of the first tubular nanofiltration membranes, and the second tubular nanofiltration membranes are respectively arranged behind the first tubular nanofiltration membranes; the right end membrane external ports of the second tubular nanofiltration membranes and the right end membrane external ports of the first tubular nanofiltration membranes are connected in parallel to a first drain pipe, one end of the first drain pipe is open, the other end of the first drain pipe is closed, and the first handle valve is arranged on the first drain pipe and is positioned on the downstream side of each first tubular nanofiltration membrane and each second tubular nanofiltration membrane; the left-end membrane external ports of the second tubular nanofiltration membranes are connected in parallel to a second liquid discharge pipe, one end of the second liquid discharge pipe is open, the other end of the second liquid discharge pipe is closed, and the second handle valve is arranged on the second liquid discharge pipe and is positioned on the downstream side of the second tubular nanofiltration membranes; the right end membrane external ports of the rest second tubular nanofiltration membranes are connected in parallel to a third liquid discharge pipe, one end of the third liquid discharge pipe is open, and the other end of the third liquid discharge pipe is closed; the third handle valve is arranged on the third liquid discharge pipe and located on the downstream side of each second tubular nanofiltration membrane, one is located at the same height, the first tubular nanofiltration membrane and one are further provided with a first collecting branch pipe on the right side of each second tubular nanofiltration membrane, one is located at the same height, an inner interface of the right end membrane of the first tubular nanofiltration membrane and one are further connected onto a corresponding first collecting branch pipe in parallel, and each of the first collecting branch pipes is inserted into one end of each first collecting branch pipe and is sealed at the other end of each first collecting branch pipe.

2. The nanofiltration membrane device for desalination and concentration of polyphenols of claim 1, wherein the rack is further provided with a standby system, and the standby system comprises a third liquid-passing pipe, a second filter, a second pressure pump, a fourth liquid-passing pipe, a third tubular nanofiltration membrane, a fourth liquid-discharging pipe, a fifth liquid-discharging pipe, a sixth liquid-discharging pipe, a fourth handle valve, a fifth handle valve, a sixth handle valve, a seventh liquid-discharging pipe and a second collecting pipe; one end of the third liquid passing pipe is connected with a liquid inlet of the second filter, a liquid outlet of the second filter is connected with a liquid inlet of the second pressure pump, one end of the fourth liquid passing pipe is connected with a liquid outlet of the second pressure pump, the other end of the fourth liquid passing pipe is closed, the third tubular nanofiltration membranes comprise a plurality of third tubular nanofiltration membranes which are transversely fixed in the frame and are sequentially arranged from top to bottom, the right end membrane external ports of the third tubular nanofiltration membranes are connected in parallel on a fourth liquid conduit, the fourth tubular nanofiltration membranes comprise a plurality of the fourth tubular nanofiltration membranes which are transversely fixed in the rack and are arranged from top to bottom in sequence, the number of the fourth tubular nanofiltration membranes is equal to that of the third tubular nanofiltration membranes, and the fourth tubular nanofiltration membranes are respectively arranged behind the third tubular nanofiltration membranes; the left-end membrane external ports of a plurality of the fourth tubular nanofiltration membranes and the left-end membrane external ports of a plurality of the third tubular nanofiltration membranes are connected in parallel on a fourth liquid discharge pipe, one end of the fourth liquid discharge pipe is open, the other end of the fourth liquid discharge pipe is closed, one end of a sixth liquid discharge pipe is inserted on the fourth liquid discharge pipe, the other end of the sixth liquid discharge pipe is open, and a sixth handle valve is arranged on the sixth liquid discharge pipe; the left-end membrane external interfaces of the rest of the fourth tubular nanofiltration membranes are connected in parallel to a fifth liquid discharge pipe, one end of the fifth liquid discharge pipe is open, and the other end of the fifth liquid discharge pipe is closed; the fourth handle valve is arranged on a fifth liquid discharge pipe and is positioned on the downstream side of each fourth tubular nanofiltration membrane, the right end membrane external interfaces of the fourth tubular nanofiltration membranes are connected in parallel on a seventh liquid discharge pipe, one end of the seventh liquid discharge pipe is open, the other end of the seventh liquid discharge pipe is closed, and the fifth handle valve is arranged on the seventh liquid discharge pipe and is positioned on the downstream side of the fourth tubular nanofiltration membranes; the left side of the fourth tubular nanofiltration membrane is also provided with a second collection branch pipe, the left end of the third tubular nanofiltration membrane is connected with an inner port of the left end of the fourth tubular nanofiltration membrane in parallel to a corresponding second collection branch pipe, one end of each second collection branch pipe is connected with a second collection pipe in an inserting manner, and the other end of each second collection branch pipe is sealed.

3. The nanofiltration membrane apparatus of claim 2, wherein a seventh hand valve is further disposed between the liquid outlet of the first filter and the liquid inlet of the first pressure pump, and the second liquid outlet pipe is further provided with a first electric valve disposed at an upstream side of each first tubular nanofiltration membrane.

4. The nanofiltration membrane apparatus of claim 3, wherein an eighth hand valve is further disposed between the liquid outlet of the second filter and the liquid inlet of the second pressure pump, and the fourth liquid conduit is further provided with a second electrically operated valve disposed at an upstream side of each of the third tubular nanofiltration membranes.

5. The nanofiltration membrane device for desalination and concentration of polyphenols of claim 4, wherein the first drainage pipe is further connected with an overflow pipe in a plug manner, and the overflow pipe is further provided with a ninth handle valve.

6. The nanofiltration membrane device of claim 5, wherein the first collecting pipes are further connected with first bypass pipes in an inserted manner, the first bypass pipes are arranged at the downstream side of each first collecting branch pipe, the first bypass pipes are further provided with third electric valves, the first bypass pipes are further connected with second bypass pipes in an inserted manner, the connecting positions of the second bypass pipes are arranged at the upstream sides of the third electric valves, and the second bypass pipes are further provided with tenth handle valves.

7. The nanofiltration membrane device for desalination and concentration of polyphenols of claim 6, wherein the second collection tubes are further plugged with third side connection tubes, the third side connection tubes are disposed at the downstream side of each of the second collection branch tubes, the third side connection tubes are further provided with fourth electrically operated valves, the third side connection tubes are further plugged with fourth side connection tubes, the plugging positions of the fourth side connection tubes are disposed at the upstream sides of the fourth electrically operated valves, and the fourth side connection tubes are further provided with eleventh hand valves.

8. The nanofiltration membrane device of claim 7, wherein the first collecting pipe is further connected with a first exhaust pipe in an inserted manner, the inserted portion of the first exhaust pipe is arranged at the downstream side of the first bypass pipe, and the first exhaust pipe is further provided with a first ball valve.

9. The nanofiltration membrane device for desalination and concentration of polyphenols of claim 8, wherein the second collection pipe is further plugged with a second exhaust pipe, the plugging position of the second exhaust pipe is arranged at the downstream side of the third bypass pipe, and the second exhaust pipe is further provided with a second ball valve.