CN111359236A - Continuous drainage device under high vacuum state and concentration system thereof - Google Patents
Continuous drainage device under high vacuum state and concentration system thereof Download PDFInfo
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- CN111359236A CN111359236A CN202010111053.6A CN202010111053A CN111359236A CN 111359236 A CN111359236 A CN 111359236A CN 202010111053 A CN202010111053 A CN 202010111053A CN 111359236 A CN111359236 A CN 111359236A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The invention discloses a continuous liquid drainage device in a high vacuum state and a concentration system thereof, which comprise a condenser, a liquid receiving tank, a liquid drainage pump, a liquid level sensor and a controller, wherein the controller is respectively electrically connected with the liquid drainage pump and the liquid level sensor; the condenser is provided with a steam inlet, the liquid receiving tank is communicated with the condenser and used for receiving condensate generated by the condenser, an input pipeline of the liquid discharge pump is communicated with a liquid outlet at the lower end of the liquid receiving tank, the condenser is provided with a vacuum tube communicated with the inside of the condenser, a liquid outlet pipeline of the liquid discharge pump is respectively communicated with an output pipeline and a return pipeline, the return pipeline is communicated with the inside of the liquid receiving tank, the return pipeline is provided with a return valve, the output pipeline is sequentially provided with a liquid outlet valve and a one-way valve in the liquid discharge direction, and the controller is respectively electrically connected with the return valve and the liquid outlet valve. The invention can continuously discharge water without destroying vacuum during concentration, can also continuously discharge water when the vacuum degree is more than 0.095MPa, and the liquid discharge pump can not generate cavitation and has more stable vacuum degree.
Description
Technical Field
The invention relates to the technical field of evaporators or concentrators, in particular to a continuous liquid drainage device in a high vacuum state and a concentration system thereof.
Background
The evaporator and the concentrator are widely applied to the technical fields of chemical industry, pharmacy, food and the like, the evaporator generally comprises a plurality of groups of heaters, evaporation chambers, condensers, vacuum pumps and drainage devices, steam generated by the previous-stage evaporation chamber is used as a heat source of the next-stage heater, and the steam in the last-stage evaporation chamber is condensed by the condenser to become liquid and then is drained through the drainage devices. The evaporator or the concentrator usually works under a vacuum state, the existing drainage device can drain water manually or automatically, the pump works under a vacuum-broken loading state during drainage, the liquid receiving tank is required to be communicated with the atmosphere, when the liquid receiving tank is not vacuum, the liquid in the liquid receiving tank can be discharged, the liquid needs to be pumped again after the liquid is discharged, the vacuum degree in the concentration system can be reduced at the moment, the vacuum degree is unstable, and the evaporation temperature rises or foams are easily generated.
Chinese patent document CN 209908790U discloses an automatic drainage device for condensate in resin drying treatment, which realizes automatic start-stop control of a condensate pump according to the liquid level condition by a PLC control system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the continuous liquid drainage device in the high vacuum state and the concentration system thereof, which can realize the automatic and rapid discharge of condensate in a liquid receiving tank, avoid the cavitation problem of a liquid drainage pump and reduce the generation of foam.
The invention adopts the following technical scheme:
on one hand, the invention provides a continuous liquid drainage device in a high vacuum state, which comprises a condenser, a liquid receiving tank, a liquid drainage pump, a liquid level sensor and a controller, wherein the controller is respectively electrically connected with the liquid drainage pump and the liquid level sensor; the condenser is provided with a steam inlet, the liquid receiving tank is communicated with the condenser and used for receiving condensate generated by the cooling condenser, an input pipeline of the liquid discharge pump is communicated with a liquid outlet at the lower end of the liquid receiving tank, the condenser is provided with a vacuumizing pipe communicated with the inside of the condenser, a liquid outlet pipeline of the liquid discharge pump is respectively communicated with an output pipeline and a return pipeline, the return pipeline is communicated with the inside of the liquid receiving tank, the return pipeline is provided with a return valve, the output pipeline is sequentially provided with a liquid outlet valve and a one-way valve in the liquid discharge direction, and the controller is respectively electrically connected with the return valve and the liquid outlet valve.
And a quick-assembly valve is further arranged on an output pipeline of the liquid discharge pump and used for controlling the liquid discharge lift of the output pipeline.
Preferably, the quick-mounting valve is a manual ball valve.
Wherein the liquid level sensor comprises:
the upper liquid level sensor is arranged at the upper part of the liquid receiving tank and controls the starting action of the liquid discharge pump through the controller when detecting that the liquid in the liquid receiving tank is in place;
the lower liquid level sensor is arranged at the lower part of the liquid receiving tank, and controls the closing action of the liquid discharge pump through the controller when the liquid in the liquid receiving tank cannot be detected;
the communication position of the return pipeline and the liquid receiving tank is arranged between the upper liquid level sensor and the lower liquid level sensor.
When the upper liquid level sensor detects the liquid level of the liquid receiving tank, the controller controls the backflow valve to be opened and the liquid outlet valve to be closed, and the liquid discharge pump generates backflow operation; and after the liquid drainage pump operates in a backflow mode for a set time, the backflow valve is closed, the liquid outlet valve is opened, and the output pipeline discharges the condensate in the liquid receiving tank.
The backflow operation time of the liquid discharge pump set by the controller is 6-10 seconds.
The vacuum-pumping pipe is arranged at the lower end of the condenser.
The device comprises a plurality of condensers, and the liquid receiving tank is communicated with the lower part of each condenser and is used for receiving condensate generated by each condenser.
In another aspect, the invention further provides a concentration system in a high vacuum state, which includes a concentrator and a liquid discharge device connected thereto, the liquid discharge device is the above continuous liquid discharge device, and a steam outlet of the concentrator is connected to the steam inlet of the liquid discharge device.
The concentrator is one of a single-effect concentrator, a double-effect concentrator, a multi-effect concentrator, a falling film evaporator, an alcohol recovery concentrator, a vacuum decompression concentrator and a spherical concentrator.
The technical scheme of the invention has the following advantages:
A. the invention can continuously discharge water without damaging vacuum during concentration, can continuously discharge water when the vacuum degree is more than 0.095MPa, can not generate cavitation phenomenon by a liquid discharge pump, can not reduce the vacuum degree during liquid discharge, has more stable vacuum degree, is suitable for evaporation or concentrators of various organic solvents and water, and has more obvious advantages compared with the conventional concentrators when materials with foam or large foam are evaporated.
B. According to the invention, the liquid outlet pipeline of the liquid discharge pump is respectively communicated with the reflux pipeline and the output pipeline, and the reflux circulation is realized by controlling the opening of the reflux valve and the closing of the liquid outlet valve at the liquid discharge initial stage, so that the gas in the pipeline is completely discharged, and the cavitation phenomenon is avoided; and then the return pipeline is closed through a switching circuit, so that the condensate is efficiently discharged from the output pipeline, the lift and the flow of the discharged condensate are controlled through controlling the switching value of the quick-mounting valve, the automatic operation is realized, and the operation intensity is reduced. Simple structure, low cost, wide application range and suitability for various concentration/evaporators.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings which are needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained from the drawings without inventive labor to those skilled in the art.
FIG. 1 is a schematic view of the overall structure of a continuous drainage apparatus according to the present invention;
FIG. 2 is a schematic diagram of the configuration of the present invention used on a single effect concentrator;
FIG. 3 is a schematic diagram of the configuration of the present invention in use on a multi-effect concentrator;
FIG. 4 is a schematic of the structure used on a falling film evaporator according to the present invention;
FIG. 5 is a schematic diagram of the configuration of the alcohol recovery concentrator of the present invention.
The labels in the figure are as follows:
1-a steam inlet; 2-condenser end cap; 3-a cooling water outlet; 4-a condenser; 5-cooling water inlet; 6-condenser flange; 7-vacuumizing the tube; 8-condensate outlet pipe; 9-an upper level sensor; 10-lower level sensor; 11-a reflux valve; 12-a liquid outlet valve; 13-a one-way valve; 14-fast-assembly valve; 15-a liquid discharge pump; 16-an input pipe; 17-a liquid outlet pipeline; 18-an output conduit; 19-a return line; 20-a liquid receiving tank; 21-a concentrator; 22-steam outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present invention provides a continuous liquid drainage device under high vacuum state, comprising a condenser 4, a liquid receiving tank 20, a liquid drainage pump 15, a liquid level sensor and a controller, wherein the controller is electrically connected with the liquid drainage pump 15 and the liquid level sensor respectively; the condenser 4 is provided with a steam inlet 1, the steam inlet 1 is arranged at the upper end or the upper part of the condenser, the liquid receiving tank 20 is communicated with the condenser 4 and used for receiving condensate generated by the condenser 4, an input pipeline 16 of the liquid discharge pump 15 is communicated with a liquid outlet at the lower end of the liquid receiving tank 20, the condenser 4 is provided with a vacuum tube 7 communicated with the inside of the condenser 4, a liquid outlet pipeline 17 of the liquid discharge pump 15 is respectively communicated with an output pipeline 18 and a return pipeline 19, the return pipeline 19 is communicated with the inside of the liquid receiving tank 20, the return pipeline 19 is provided with a return valve 11, the output pipeline 18 is sequentially provided with a liquid outlet valve 12 and a one-way valve 13 in the liquid discharge direction, and the controller is respectively electrically connected with the return valve. Condenser 4 is inside to be provided with and to be the condenser shell and tube that reciprocates to turn back, and the cooling water inlet 5 of condenser shell and tube sets up in the lower part of condenser, and the cooling water export 3 of condenser shell and tube sets up on the upper portion of condenser 4, still sets up a condenser end cover 2 in the top of condenser shell and tube, connects steam inlet 1 on the condenser end cover 2, and condenser 4's both ends form sealing connection through condenser flange 6 and condenser end cover 2, liquid receiving tank 20 respectively. The high-temperature steam entering the end cover of the condenser exchanges heat through the condensing tube array to form condensed liquid, and then enters the liquid receiving tank 20 through the condensed liquid output pipe 8 to be collected.
The drainage pump 15 is an existing sanitary pump, the reflux valve 11 and the liquid outlet valve 12 are electric or pneumatic valves, and are automatically controlled by a controller and can be purchased in the market, and the structure and the function of the drainage pump are not described again. A fast-assembling valve 14 is also arranged on the output pipeline 18 of the liquid discharge pump 15 and used for controlling the liquid discharge lift of the output pipeline 18. The quick-install valve 14 is preferably a manual ball valve, although electrically or pneumatically actuated valves may be used, each of which is flow controlled by a controller.
The liquid level sensor of the present invention comprises: an upper level sensor 9 and a lower level sensor 10
The upper liquid level sensor 9 is arranged at the upper part of the liquid receiving tank 20, and controls the starting action of the liquid discharge pump 15 through the controller when detecting that the liquid in the liquid receiving tank 20 is in place; the lower liquid level sensor 10 is provided below the liquid receiving tank 20, and controls the closing operation of the drain pump 15 by the controller when the liquid in the liquid receiving tank 20 is not detected. The output quantity of the fast-assembling valve 14 is adjusted by the input liquid quantity of the liquid receiving tank 20 to achieve the balance of the liquid receiving tank and the fast-assembling valve, so that the condensed liquid is automatically and continuously discharged, and the balance of the vacuum degree in the tank body is maintained.
Preferably, the communication position of the return pipe 19 and the liquid receiving tank 20 is arranged between the upper liquid level sensor 9 and the lower liquid level sensor 10 and is close to the height of the upper liquid level sensor 9.
In the initial stage of liquid drainage performed by the liquid drainage pump, when the upper liquid level sensor 9 detects the liquid level of the liquid receiving tank 20, the controller controls the opening of the reflux valve 11 and the closing of the liquid outlet valve 12, and the liquid drainage pump 15 generates reflux operation; after the drain pump 15 is operated in a reflux state for a predetermined time, the reflux valve 11 is closed, the drain valve 12 is opened, and the condensate in the liquid receiving tank 20 is discharged through the discharge pipe 18. The reflux operation time of the liquid discharge pump 15 set by the controller is 6 to 10 seconds.
Further, in order to efficiently introduce the steam, the vacuum-pumping pipe 7 is preferably arranged at the lower end of the condenser 4, and when a vacuum device connected with the vacuum-pumping pipe 7 performs vacuum pumping, the steam completely passes through a condensation tube array inside the condenser, so that the purpose of rapid condensation is achieved.
As shown in fig. 5, a plurality of condensers 4 may be further included in the continuous drain, and a liquid receiving tank 20 is communicated with a lower portion of each condenser 4 for receiving condensate produced by the respective condenser 4.
As a specific application of the continuous drainage device provided by the invention, the continuous drainage device can be applied to a single-effect concentrator in fig. 2, a multi-effect concentrator in fig. 3, a falling-film evaporator in fig. 4 and an alcohol recovery concentrator in fig. 5, and of course, a vacuum decompression concentrator and a spherical concentrator are also included, and a steam outlet 22 of the concentrator 21 is connected with a steam inlet 1 on the drainage device.
The invention can continuously discharge water without damaging vacuum during concentration, can also continuously discharge water when the vacuum degree is more than 0.095MPa, can not generate cavitation phenomenon by a liquid discharge pump, and can not reduce the vacuum degree during liquid discharge, so that the vacuum degree is more stable, the invention is suitable for evaporation or concentrators of various organic solvents and water, and has more obvious advantages compared with the conventional concentrator when materials with foam or large foam are evaporated.
Because the evacuation in the evacuation pipe 7, the secondary steam that produces during the evaporation gets into in the condenser through steam inlet 1, because cooling water passes through cooling water inlet 5, discharge by cooling water outlet 3, secondary steam can condense, condensate output tube 8 and ball valve flow in receive the fluid reservoir 20, when the liquid level rose to last level sensor liquid level 9, controller control return valve 11 opened, positive displacement pump 15 also opens simultaneously, the condensate passes through positive displacement pump 15 and return valve 11 shape and a reflux state, the purpose is the air in the elimination pipe, let the condensate fill in whole pipeline, do not let the pump form the cavitation phenomenon. After 6-10 seconds of backflow, the liquid discharge pump 15 continues to work, the backflow valve 11 and the liquid outlet valve 12 are switched to work, backflow is stopped, and condensate is discharged out of the equipment through the liquid outlet valve 12, the one-way valve 13 and the fast-assembling valve 14. The quick-installing ball valve 14 is preferably a manual valve, the opening degree is manually adjusted during the first work, when the valve is fully opened, the lift of the liquid discharge pump is reduced, and the smaller the opening degree is, the higher the lift of the liquid discharge pump is.
When the liquid level drops to the liquid level 10 of the lower liquid level sensor, the liquid discharge pump 15 stops working, the liquid discharge valve 12 is closed at the same time, and liquid discharge is stopped. Liquid discharge is started when the liquid level rises to the liquid level of the upper liquid level sensor 9.
The controller can be controlled by a single chip microcomputer or a PLC program, automatic control of each control valve and the liquid discharge pump can be realized by programming the control program, the whole control program can be programmed according to the control flow provided by the invention, and control is realized by programming languages and control elements, which is not described again.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (10)
1. A continuous liquid drainage device in a high vacuum state comprises a condenser (4), a liquid receiving tank (20), a liquid drainage pump (15), a liquid level sensor and a controller, wherein the controller is respectively electrically connected with the liquid drainage pump (15) and the liquid level sensor; the condenser (4) is provided with a steam inlet (1), the liquid receiving tank (20) is communicated with the condenser (4), used for receiving condensate generated by the condenser (4), an input pipeline (16) of the liquid discharge pump (15) is communicated with a liquid outlet at the lower end of the liquid receiving tank (20), the condenser (4) is provided with a vacuum tube (7) communicated with the interior thereof, it is characterized in that a liquid outlet pipeline (17) of the liquid discharge pump (15) is respectively communicated with an output pipeline (18) and a return pipeline (19), the return pipeline (19) is communicated with the interior of the liquid receiving tank (20), a reflux valve (11) is arranged on the reflux pipeline (19), a liquid outlet valve (12) and a one-way valve (13) are sequentially arranged on the output pipeline (18) in the liquid discharging direction, the controller is respectively electrically connected with the reflux valve (11) and the liquid outlet valve (12).
2. Continuous drainage arrangement according to claim 1, characterized in that the output pipe (18) of the drainage pump (15) is also provided with a quick valve (14) for controlling the drainage head of the output pipe (18).
3. Continuous drain according to claim 2, characterized in that the quick-fit valve (14) is a manual ball valve.
4. The continuous drain of any one of claims 1-3, wherein the level sensor comprises:
the upper liquid level sensor (9) is arranged at the upper part of the liquid receiving tank (20), and controls the opening action of the liquid discharge pump (15) through the controller when detecting that the liquid in the liquid receiving tank (20) is in place;
a lower liquid level sensor (10) which is provided below the liquid receiving tank (20) and controls the closing operation of the liquid discharge pump (15) by the controller when the liquid in the liquid receiving tank (20) is not detected;
the communication position of the return pipeline (19) and the liquid receiving tank (20) is arranged between the upper liquid level sensor (9) and the lower liquid level sensor (10).
5. The continuous liquid discharge device according to claim 4, characterized in that when the upper liquid level sensor (9) detects the liquid level of the liquid receiving tank (20), the controller controls the return valve (11) to be opened and the liquid outlet valve (12) to be closed, and the liquid discharge pump (15) to perform a return operation; after the liquid discharge pump (15) operates in a backflow mode for a set time, the backflow valve (11) is closed, the liquid outlet valve (12) is opened, and the output pipeline (18) discharges condensate in the liquid receiving tank (20).
6. The continuous drainage apparatus according to claim 5, wherein the controller sets the drain pump (15) to operate at reflux for 6 to 10 seconds.
7. Continuous drainage arrangement according to claim 1, characterized in that the evacuation tube (7) is arranged at the lower end of the condenser (4).
8. Continuous draining device according to claim 1, characterised in that it comprises a plurality of condensers (4), said liquid-receiving tank (20) being in communication with a lower portion of each condenser (4) for receiving the condensate produced by the respective condenser (4).
9. A concentration system under high vacuum comprising a concentrator and a drain connected thereto, characterized in that the drain is a continuous drain according to any of claims 1-8, and the steam outlet (22) of the concentrator (21) is connected to the steam inlet (1) of the drain.
10. The high vacuum state concentration system of claim 9, wherein the concentrator is one of a single effect concentrator, a double effect concentrator, a multiple effect concentrator, a falling film evaporator, an alcohol recovery concentrator, a vacuum reduced pressure concentrator, and a spherical concentrator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010111053.6A CN111359236A (en) | 2020-02-24 | 2020-02-24 | Continuous drainage device under high vacuum state and concentration system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010111053.6A CN111359236A (en) | 2020-02-24 | 2020-02-24 | Continuous drainage device under high vacuum state and concentration system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704183A (en) * | 2020-07-08 | 2020-09-25 | 上海中船临港船舶装备有限公司 | Vacuum wastewater recovery device and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393498A (en) * | 1989-02-16 | 1995-02-28 | Lieberam; Kai | Condenser cooling and temperature control system |
| CN101923034A (en) * | 2010-07-09 | 2010-12-22 | 神华集团有限责任公司 | Catalyst treatment device and method |
| CN103007555A (en) * | 2012-12-19 | 2013-04-03 | 温州市天龙轻工设备有限公司 | Vacuum concentrator |
| CN207856335U (en) * | 2017-12-04 | 2018-09-14 | 四川蓝伯特生物科技股份有限公司 | A kind of high-efficiency vacuum decompression concentrator |
| CN208115181U (en) * | 2018-02-12 | 2018-11-20 | 浙江大远智慧制药工程技术有限公司 | A kind of single-effect external-circulation vacuum concentrator of highly enriched efficiency |
-
2020
- 2020-02-24 CN CN202010111053.6A patent/CN111359236A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393498A (en) * | 1989-02-16 | 1995-02-28 | Lieberam; Kai | Condenser cooling and temperature control system |
| CN101923034A (en) * | 2010-07-09 | 2010-12-22 | 神华集团有限责任公司 | Catalyst treatment device and method |
| CN103007555A (en) * | 2012-12-19 | 2013-04-03 | 温州市天龙轻工设备有限公司 | Vacuum concentrator |
| CN207856335U (en) * | 2017-12-04 | 2018-09-14 | 四川蓝伯特生物科技股份有限公司 | A kind of high-efficiency vacuum decompression concentrator |
| CN208115181U (en) * | 2018-02-12 | 2018-11-20 | 浙江大远智慧制药工程技术有限公司 | A kind of single-effect external-circulation vacuum concentrator of highly enriched efficiency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704183A (en) * | 2020-07-08 | 2020-09-25 | 上海中船临港船舶装备有限公司 | Vacuum wastewater recovery device and application method thereof |
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