CN210543406U - Evaporation concentration device - Google Patents
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- CN210543406U CN210543406U CN201920949782.1U CN201920949782U CN210543406U CN 210543406 U CN210543406 U CN 210543406U CN 201920949782 U CN201920949782 U CN 201920949782U CN 210543406 U CN210543406 U CN 210543406U
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Abstract
The utility model discloses an evaporation concentration device, which relates to the field of evaporation equipment and comprises a first-effect evaporation unit, a second-effect evaporation unit, a third-effect evaporation unit, a heat supply device and a condensing device; the first-effect evaporation unit comprises a first-effect evaporator, a first-effect separator and a first-effect circulating pump; the double-effect evaporation unit comprises a double-effect evaporator, a double-effect separator, a double-effect circulating pump and a discharge pump; the triple-effect evaporation unit comprises a triple-effect evaporator, a triple-effect separator and a triple-effect circulating pump; the utility model discloses the evaporative concentration device adopts the triple effect continuous evaporation of cross-flow, at first carries the material to evaporate in the triple effect falling film evaporation ware, evaporates out the gaseous most elder generation of non-condensable of easy evaporation, takes away by the condenser, has avoided the influence of non-condensable gas to the evaporimeter heat transfer, improves the utilization ratio of effective heat energy.
Description
Technical Field
The utility model relates to an evaporation equipment field, concretely relates to evaporation concentration device.
Background
Evaporative concentration is a unit operation in which a solution containing a non-volatile solute is heated to boiling conditions by heating, and a portion of the solvent is vaporized and removed, thereby increasing the concentration of the solute in the solvent.
Industrial materials and industrial waste water are often subjected to an evaporation and concentration process, and the steam consumption is high. In the evaporation technology, the form of the evaporator of the multi-effect evaporation is more common. However, in recent years, with the rapid increase of steam price, the energy consumption of the evaporation process also increases the burden of the large enterprises sharply.
Therefore, evaporative concentration systems utilizing secondary steam continuously appear in the prior art, but the utilization rate of steam heat energy is improved only by recycling the secondary steam at present. When the fresh steam and the secondary steam of the heater of the evaporator heat the steam, a large amount of non-condensable gas can be filled in the heater through heat exchange, the non-condensable gas occupies the space of the steam, the temperature of the steam is reduced, and air resistance is easily formed to prevent the steam from entering the heat exchanger. In the prior art, although a part of evaporation concentration devices are provided with non-condensable gas pipes to discharge non-condensable gas generated during evaporation of liquid, the final effect of discharging the non-condensable gas is not ideal.
Disclosure of Invention
Problem to among the prior art, the utility model aims at providing an evaporation concentration device, the utility model discloses evaporation concentration device adopts cross-flow triple effect continuous evaporation, at first carries the material to evaporate in the triple effect falling film evaporation ware, evaporates out the noncondensable gaseous most of easy evaporation earlier, takes away by the condenser, has avoided the influence of noncondensable gas to the evaporimeter heat transfer, improves the utilization ratio of effective heat energy. Meanwhile, secondary steam generated by waste heat of the primary-effect evaporation unit is utilized by the secondary-effect evaporation unit, secondary steam generated by waste heat of the secondary-effect evaporation unit is utilized by the tertiary-effect evaporation unit, a heat source is recycled, and energy is saved.
In order to achieve the purpose, the utility model discloses a following technical scheme realizes:
an evaporation concentration device comprises a first-effect evaporation unit, a second-effect evaporation unit, a third-effect evaporation unit, a heat supply device and a condensation device;
the first-effect evaporation unit comprises a first-effect evaporator, a first-effect separator and a first-effect circulating pump;
the double-effect evaporation unit comprises a double-effect evaporator, a double-effect separator, a double-effect circulating pump and a discharge pump;
the triple-effect evaporation unit comprises a triple-effect evaporator, a triple-effect separator and a triple-effect circulating pump;
an inlet of the first-effect circulating pump is communicated to the first-effect separator through a pipeline, and an outlet of the first-effect circulating pump is provided with two pipelines which are a first material circulating pipe and a first material conveying pipe respectively; the first-effect circulating pump is communicated to the first-effect evaporator through a first material circulating pipe, and the first-effect circulating pump is communicated to the second-effect separator through a first material conveying pipe;
an inlet of the two-effect circulating pump is communicated to the two-effect separator through a pipeline, and a pipeline second material circulating pipe is arranged at an outlet of the two-effect circulating pump; the second-effect circulating pump is communicated to the second-effect evaporator through a second material circulating pipe; a discharge pipe is arranged at a discharge port of the two-effect separator, and the discharge pump is communicated with the two-effect separator through the discharge pipe;
an inlet of the three-effect circulating pump is communicated to the three-effect separator through a pipeline, and an outlet of the three-effect circulating pump is provided with two pipelines which are a third material circulating pipe and a second material conveying pipe respectively; the three-effect circulating pump is communicated to the three-effect evaporator through a third material circulating pipe, and communicated to the one-effect separator through a second material conveying pipe;
the condensation device comprises a condenser and a non-condensation gas pipe, and the first-effect evaporator, the second-effect evaporator, the third-effect evaporator and the condenser are communicated through the non-condensation gas pipe;
the heat supply device comprises a raw steam pipe, a first-effect secondary steam pipe, a second-effect secondary steam pipe and a third-effect secondary steam pipe, the first-effect evaporator is communicated with the raw steam pipe, the first-effect separator is communicated with the second-effect evaporator through the first-effect secondary steam pipe, the second-effect separator is communicated with the third-effect evaporator through the second-effect secondary steam pipe, and the third-effect separator is communicated with the condenser through the third-effect secondary steam pipe;
the triple-effect evaporator is a falling film evaporator.
The working principle is as follows: the cross-flow evaporation is adopted, firstly, the material is transported to a triple-effect evaporation unit for evaporation and concentration, because the triple-effect evaporator adopts a falling film evaporator, under the action of the triple-effect circulating pump, the material circularly flows in the triple-effect evaporator and the triple-effect separator through the third material circulating pipe for evaporation, and in the process of evaporation and concentration of the material in the triple-effect evaporation unit, most of the non-condensable gas which is easy to evaporate is evaporated and is transmitted to a condenser through a non-condensable gas pipe to be taken away, when the material is concentrated to a certain concentration in the triple-effect evaporation unit, the valve is opened, the material is conveyed into the first-effect evaporation unit from the triple-effect evaporation to be evaporated and concentrated to a certain concentration, and then the material is conveyed into the second-effect evaporation unit from the first-effect evaporation unit to be evaporated and concentrated to the required concentration, and under the action of the discharge pump, discharging the concentrated feed liquid from the two-effect separator to finish the whole evaporation and concentration process.
Raw steam is transported to a first-effect evaporator through a raw steam pipe in the evaporation concentration process to carry out heating evaporation concentration on materials, when feed liquid after heating evaporation concentration enters a first-effect separator, generated secondary steam enters a second-effect evaporator through a first-effect secondary steam pipe to carry out evaporation concentration on the materials in the second-effect evaporator, the same feed liquid after heating concentration of the second-effect evaporator enters the second-effect separator, the generated secondary steam enters the second-effect evaporator through a second-effect secondary steam pipe to carry out heating evaporation concentration on the feed liquid in the third-effect evaporator, the feed liquid after heating concentration of the third-effect evaporator enters the third-effect separator, the secondary steam generated in the third-effect separator enters a third-effect secondary steam pipeline into a condenser pipe to be condensed and discharged, and simultaneously a small amount of non-condensable gas can be taken away in the secondary steam.
The utility model discloses the device is through setting up the floater control valve in the separator, and in evaporation process, the liquid level can descend, and the valve is opened in the decline back floater control valve decline and the liquid material is replenished, and when replenishing the take the altitude, floater control valve come-up valve closes, through the floater control valve, evaporation plant can carry out automatic fluid infusion, reduces operation flow.
The feeding device comprises a feeding pump, a material tank and a feeding pipe, wherein the feeding pump is respectively connected with the material tank and the three-effect separator through two ends of the feeding pipe. Under the action of the feed pump, feed liquid in the material tank is firstly conveyed into the three-effect separator through the feed pipe.
Be equipped with the flowmeter on the inlet pipe, can observe the input speed of inlet pipe through the flowmeter, be convenient for control and adjust suitable input speed.
And floating ball control valves are arranged in the first-effect separator, the second-effect separator and the third-effect separator.
In the evaporation process, the liquid level can descend, and the float control valve descends to open the valve to replenish liquid materials after descending, and when replenishing to a certain height, the float control valve floats upwards and the valve is closed, and through the float control valve, the evaporation device can replenish liquid automatically, and the operation flow is reduced.
The condensing device also comprises a condensed water tank, a condensed water pipe, a condensed water pump, a vacuum pump water tank and a vacuum pipe;
the condenser is connected with the inlet of the condensed water tank through a condensed water pipe, and the condensed water pump is connected with the outlet of the condensed water tank through a pipeline;
and two ends of the vacuum pump are connected with the vacuum pump water tank and the condensed water tank through vacuum tubes.
The condensed water in the condenser is recovered to the condensed water tank through the condensed water pipe, and then the transportation in the condensed water tank is discharged to a related device through the condensed water pump for cyclic utilization.
And finally, the non-condensable gas remained in the condensed water tank is pumped into a vacuum pump water tank through a vacuum pipe and discharged.
The noncondensable gas pipe includes noncondensable gas pipe and lower noncondensable gas pipe, first effect evaporator upper end, two effect evaporator upper end, three effect evaporator upper end and condenser are linked together through last noncondensable gas pipe, first effect evaporator lower extreme, two effect evaporator lower extreme and three effect evaporator lower extreme and condenser are linked together through noncondensable gas pipe down. Through set up noncondensable trachea and lower noncondensable trachea respectively in the upper and lower end of dividing in the effect evaporation unit, improve the gaseous clearance of noncondensable, reduce noncondensable gaseous heat absorption, improve effective heat utilization rate.
Evaporative concentration device still includes emergent pond and emergency pipe, all be equipped with emergent pipe intercommunication to emergent pond on one imitates circulating pump, two imitate circulating pump, three imitate circulating pump, ejection of compact pump, charge pump and condensate pump, each pump inlet department is equipped with the emergent pipe of bleeder in the device, when a certain link or a certain pump operation in the evaporative concentration device goes wrong, can in time arrange into emergent pond to the feed liquid, blocking device's feed liquid circulation flow direction, in time reduces the loss of feed liquid.
The first-effect evaporator and the second-effect evaporator are both double-tube-pass circulating evaporators.
The first material circulating pipe, the first material conveying pipe, the second material circulating pipe, the discharging pipe, the third material circulating pipe, the second material conveying pipe, the non-condensing pipe, the vacuum pipe, the raw steam pipe, the first-effect secondary steam pipe, the second-effect secondary steam pipe, the third-effect secondary steam pipe and the feeding pipe are all provided with electromagnetic control valves, and the electromagnetic control valves are installed on all the pipelines of the evaporation concentration device, so that the operation of all the pipelines is convenient to control.
The utility model discloses following beneficial effect has:
(1) the utility model discloses the evaporative concentration device adopts cross-flow triple effect evaporation in succession, at first carries the material to evaporate in the triple effect falling film evaporation ware, evaporate out easily evaporating noncondensable gaseous most earlier, take away by the condenser, avoided noncondensable gaseous influence to the evaporimeter heat transfer, the while utilizes the steam that produces a result evaporation unit waste heat to give the utilization of two effect evaporation units, the steam that the waste heat of two effect evaporation units produced gives the utilization of triple effect evaporation unit, heat source cyclic utilization, the energy saving.
(2) The utility model discloses the device is through setting up the floater control valve in the separator, and in evaporation process, the liquid level can descend, and the valve is opened in the decline back floater control valve decline and the liquid material is replenished, and when replenishing the take the altitude, floater control valve come-up valve closes, through the floater control valve, evaporation plant can carry out automatic fluid infusion, reduces operation flow.
(3) Outside the cooperation through vacuum pump and condenser with the non-condensable gas extraction device among the evaporative concentration device, reduce non-condensable gas and to the heat transfer influence of evaporative concentration device, improve the heat utilization efficiency of device, utilize comdenstion water recycle, the water economy resource through the condensate water jar simultaneously.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
labeled as: 11-one effect evaporator; 12-a one-effect separator; 13-one-effect circulating pump; 14-a first material circulation pipe; 15-a first material conveying pipe; 21-a double effect evaporator; 22-a two-way separator; 23-a two-effect circulating pump; 24-a discharge pump; 25-second material circulation pipe; 26-a discharge pipe; 31-triple effect evaporator; 32-a three-way separator; 33-three-effect circulating pump; 34-third material circulation pipe; 35-a second material conveying pipe; 41-a condenser; 42-non-condensing tube; 421-upper noncondensable trachea; 422-lower noncondensable gas pipe; 43-condensed water tank; 44-a condensate pipe; 45-condensate pump; 46-a vacuum pump; 47-vacuum pump water tank; 48-vacuum tube; 51-raw steam tube; 52-effect secondary steam pipe; 53-double effect secondary steam pipe; 54-triple effect secondary steam pipe; 61-a feed pump; 62-material tank; 63-feeding pipe; 64-a flow meter; 71-a float control valve; 81-emergency pool; 82-emergency pipe;
the direction of the arrows on the pipe in fig. 1 indicates the flow direction of the medium in the pipe;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element 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," "third," and the like 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 also 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 circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Example 1
As shown in fig. 1, an evaporation concentration device comprises a first-effect evaporation unit, a second-effect evaporation unit, a third-effect evaporation unit, a heat supply device and a condensation device, wherein the heat supply device is connected with the first-effect evaporation unit, the condensation device is connected with the third-effect evaporation unit, and the second-effect evaporation unit is arranged between the first-effect evaporation unit and the first-effect evaporation unit;
the one-effect evaporation unit comprises a one-effect evaporator 11, a one-effect separator 12 and a one-effect circulating pump 13;
the double-effect evaporation unit comprises a double-effect evaporator 21, a double-effect separator 22, a double-effect circulating pump 23 and a discharge pump 24;
the triple-effect evaporation unit comprises a triple-effect evaporator 31, a triple-effect separator 32 and a triple-effect circulating pump 33;
an inlet of the first-effect circulating pump 13 is communicated to the first-effect separator 12 through a pipeline, and an outlet of the first-effect circulating pump 13 is provided with two pipelines which are a first material circulating pipe 14 and a first material conveying pipe 15 respectively; the first-effect circulating pump 13 is communicated to the first-effect evaporator 11 through a first material circulating pipe 14, and the first-effect circulating pump 13 is communicated to the second-effect separator 22 through a first material conveying pipe 15;
an inlet of the two-effect circulating pump 23 is communicated to the two-effect separator 22 through a pipeline, and a pipeline second material circulating pipe 25 is arranged at an outlet of the two-effect circulating pump 23;
the two-effect circulating pump 23 is communicated to the two-effect evaporator 21 through a second material circulating pipe 25; a discharge pipe 26 is arranged at the discharge port of the two-effect separator 22, and a discharge pump 24 is communicated with the two-effect separator 22 through the discharge pipe 26;
an inlet of the three-effect circulating pump 33 is communicated to the three-effect separator 32 through a pipeline, and an outlet of the three-effect circulating pump 33 is provided with two pipelines which are a third material circulating pipe 34 and a second material conveying pipe 35 respectively;
the three-effect circulating pump 32 is communicated to the three-effect evaporator 31 through a third material circulating pipe 34, and the three-effect circulating pump 33 is communicated to the one-effect separator 12 through a second material conveying pipe 35;
the condensing device comprises a condenser 41 and a noncondensable gas pipe 42, and the first-effect evaporator 13, the second-effect evaporator 23, the third-effect evaporator 33 and the condenser 41 are communicated through the noncondensable gas pipe 42;
the heat supply device comprises a raw steam pipe 51, a first-effect secondary steam pipe 52, a second-effect secondary steam pipe 53 and a third-effect secondary steam pipe 54, wherein the first-effect evaporator 11 is communicated with the raw steam pipe 51, the first-effect separator 12 is communicated with the second-effect evaporator 21 through the first-effect secondary steam pipe 52, the second-effect separator 22 is communicated with the third-effect evaporator 31 through the second-effect secondary steam pipe 53, and the third-effect separator 32 is communicated with the condenser 41 through the third-effect secondary steam pipe 54;
the triple-effect evaporator is a falling film evaporator.
The working principle is as follows: the cross flow type evaporation is adopted, firstly the material is transported to the triple-effect evaporation unit for evaporation concentration, as the triple-effect evaporator 31 adopts the falling film evaporator, under the action of the triple-effect circulating pump 33, the material circularly flows in the triple-effect evaporator 31 and the triple-effect separator 32 through the third material circulating pipe 34 for evaporation, most of the easily evaporated non-condensable gas is evaporated in the evaporation concentration process of the triple-effect evaporation unit and is transmitted to the condenser 41 through the non-condensing gas pipe 42 to be taken away, when the material is concentrated to a certain concentration in the triple-effect evaporation unit, the valve is opened, the material is transmitted into the single-effect evaporation unit from the triple-effect evaporation unit for evaporation concentration to a certain concentration, the material is transmitted into the double-effect evaporation unit from the single-effect evaporation unit for evaporation concentration to the required concentration, under the action of the discharge pump 24, the concentrated material liquid is discharged from the double-effect separator, the whole evaporation concentration process is completed.
Specifically, during operation, firstly, the material is transported to the triple-effect separator 32, under the action of the triple-effect circulating pump 33, the material liquid in the triple-effect separator 32 is transported to the triple-effect evaporator 31 through the pipeline third material circulating pipe 34 connected to the outlet of the triple-effect circulating pump 33 to be evaporated and concentrated, the concentrated material liquid flows into the triple-effect separator 32 again through the pipeline from the triple-effect evaporator 31 due to the gravity effect, meanwhile, under the action of the triple-effect circulating pump 33, the concentrated material liquid is transported to the triple-effect evaporator 31 through the third material circulating pipe 34 to be evaporated and concentrated again, when the concentrated material liquid is concentrated to a certain concentration, the valve is opened, the concentrated material liquid is transported to the single-effect separator 12 through the other pipeline second material transporting pipe 35 connected to the outlet of the triple-effect circulating pump 33, the material liquid in the single-effect separator 12 enters the single-effect evaporator 11 through the first material circulating pipe 14 connected to the outlet of the single-effect circulating pump 13 to be evaporated and concentrated, the concentrated feed liquid flows into the first-effect separator 12 again through a pipeline from the first-effect evaporator 11 due to the action of gravity, when the concentrated feed liquid is subjected to circulating evaporation concentration to a certain concentration, a valve is opened, the concentrated feed liquid is conveyed into the second-effect separator 22 through a first material conveying pipe 15 of another pipeline connected with the outlet of the first-effect circulating pump 33, the same feed liquid in the second-effect separator 22 is conveyed into the second-effect evaporator 21 through a second material circulating pipe 25 under the action of the second-effect circulating pump 23 to be subjected to circulating evaporation concentration, and when the feed liquid is concentrated to the required concentration, the concentrated feed liquid is conveyed into a corresponding storage device through a discharge pipe 26 through a discharge hole of the second-effect separator 22 and a discharge pump 24 under the action of a discharge pump 24.
When materials firstly enter the triple-effect evaporation unit for evaporation, most of non-condensable gases which are easy to evaporate are generated in the triple-effect evaporator 31, the materials are conveyed to the condenser 41 through the non-condensable gas pipe 42 to be condensed and discharged, and when the materials enter the single-effect evaporation unit and the double-effect evaporation unit, a small amount of residual non-condensable gases are generated in the single-effect evaporator 11 and the double-effect evaporator 21 and are sequentially discharged through the non-condensable gas pipe 42.
Raw steam is transported to a first-effect evaporator 11 through a raw steam pipe 51 to carry out heating evaporation concentration on materials in the evaporation concentration process, when feed liquid after heating evaporation concentration enters a first-effect separator 12, generated secondary steam floats upwards and is separated to the top of the first-effect separator 12, enters a second-effect evaporator 21 through a first-effect secondary steam pipe 52 to carry out evaporation concentration on the materials in the second-effect evaporator, the feed liquid after the same heating concentration of the second-effect evaporator 21 enters a second-effect separator 22, generated secondary steam floats upwards and is separated to the top of the second-effect separator 22, enters a second-effect evaporator 31 through a second-effect secondary steam pipe 53 to carry out heating evaporation concentration on the feed liquid in the third-effect evaporator 31, the feed liquid after the heating concentration of the third-effect evaporator 31 enters a third-effect separator 32, the secondary steam generated in the third-effect separator 32 enters a third-effect secondary steam pipeline 54 into a condenser 41 in a condensation pipe to be condensed and discharged, meanwhile, the residual small amount of non-condensable gas can be taken away by discharging the secondary steam.
The utility model discloses evaporative concentration device adopts cross-flow triple effect evaporation in succession, at first carries the material to evaporate in the triple effect falling film evaporation ware, evaporate out easily evaporating noncondensable gaseous most earlier, take away by condenser 41, avoided noncondensable gaseous influence to the evaporimeter heat transfer, the while utilizes the steam that produces a result evaporation unit waste heat to give two effect evaporation unit utilization, the steam that two effect evaporation unit waste heat produced gives three effect evaporation unit utilization, heat source cyclic utilization, the energy saving.
On the basis of the structure, the evaporation concentration device also comprises a feeding device;
the feeding device comprises a feeding pump 61, a material tank 62 and a feeding pipe 63, wherein the feeding pump 61 is respectively connected with the material tank 62 and the three-effect separator 32 through two ends of the feeding pipe 63. The feed liquid in the material tank 62 is first fed to the three-way separator 32 through the feed pipe 63 by the feed pump 61.
The feeding pipe 63 is provided with a flow meter 64, the feeding speed of the feeding pipe 63 can be observed through the flow meter 64, and the control and the adjustment of the proper feeding speed are facilitated.
Floating ball control valves 71 are arranged in the first-effect separator 12, the second-effect separator 22 and the third-effect separator 32. When the liquid level in the three-effect separator 32 is lowered, the feeding pump 62 operates to convey the materials to the replenishing liquid level in the three-effect separator 32 through the feeding pipe 63, and when the liquid level reaches a certain height, the floating ball control valve 71 in the one-effect separator 12 is closed to stop replenishing liquid; when the liquid level in the first-effect separator 12 drops, the floating ball control valve 71 in the first-effect separator 12 is opened, the feed liquid in the third-effect separator 32 is transported to the replenishing liquid level in the first-effect separator 12 through the second material conveying pipe 35, and when the feed liquid is replenished to a certain height, the floating ball control valve 71 in the first-effect separator 12 is closed. Similarly, when the liquid level in the two-effect separator 22 drops, the liquid in the one-effect separator 12 is transported to the two-effect separator 22 through the first material conveying pipe 15 to be supplemented to a certain liquid level. The ball float control valve 71 in the two-effect separator 22 is closed.
The utility model discloses the device is through setting up floater control valve 71 in the separator, and in evaporation process, the liquid level can descend, and the valve is opened to the descending back floater control valve 71 decline and is replenished the liquid material, and when replenishing the take the altitude, floater control valve come-up valve closes, through floater control valve 71, evaporation plant can carry out automatic fluid infusion, reduces operation flow.
The condensing device also comprises a condensed water tank 43, a condensed water pipe 44, a condensed water pump 45, a vacuum pump 46, a vacuum pump water tank 47 and a vacuum pipe 48;
the condenser 41 is connected with the inlet of a condensed water tank 43 through a condensed water pipe 44, and the condensed water pump 45 is connected with the outlet of the condensed water tank 43 through a pipeline;
the two ends of the vacuum pump 46 are connected with the vacuum pump water tank 47 and the upper end of the condensed water tank 43 through vacuum pipes 48.
The condensed water in the condenser 41 is recovered to the condensed water tank 43 through the condensed water pipe 43, and then the transportation in the condensed water tank 43 is discharged to the relevant devices for recycling through the condensed water pump 45.
The last remaining non-condensable gas in the condensed water tank 43 is pumped into a vacuum pump water tank 47 through a vacuum pipe 48 by a vacuum pump 46 and discharged.
Outside the cooperation through vacuum pump 46 and condenser 41 with the non-condensable gas extraction device among the evaporative concentration device, reduce the heat transfer influence of non-condensable gas to the evaporative concentration device, improve the heat utilization efficiency of device, utilize condensate water recycle, water economy resource through condensate water jar 43 simultaneously.
Example 2
On the basis of the embodiment 1, the noncondensable gas pipe 42 comprises an upper noncondensable gas pipe 421 and a lower noncondensable gas pipe 422, the upper end of the first-effect evaporator 11, the upper end of the second-effect evaporator 21, the upper end of the third-effect evaporator 31 and the condenser 41 are communicated through the upper noncondensable gas pipe 421, and the lower end of the first-effect evaporator 11, the lower end of the second-effect evaporator 21 and the lower end of the third-effect evaporator 31 and the condenser 41 are communicated through the lower noncondensable gas pipe 422. Through set up noncondensable gas pipe 421 and noncondensable gas pipe 422 respectively in the upper and lower end of dividing in effect evaporation unit, improve the clearance of noncondensable gas, reduce noncondensable gas heat absorption, improve effective heat utilization rate.
Example 3
On the basis of embodiment 1, the evaporative concentration device further comprises an emergency pool 81 and an emergency pipe 82, the emergency pipe 82 is arranged at each of the positions of the first-effect circulating pump 13, the second-effect circulating pump 23, the third-effect circulating pump 33, the discharge pump 24, the condensate pump 42 and the feed pump 61 and communicated into the emergency pool 81, a branch pipe emergency pipe 82 is arranged at each pump inlet in the device, when a certain link or a certain pump in the evaporative concentration device runs and goes wrong, the feed liquid can be discharged into the emergency pool 81 in time, the feed liquid of the blocking device flows in a circulating mode, and loss of the feed liquid is reduced in time.
The first-effect evaporator 11 and the second-effect evaporator 21 are both double-tube-pass circulating evaporators.
The pipelines in the above embodiments are all provided with electromagnetic control valves; specifically, the first material circulating pipe 14, the first material conveying pipe 15, the second material circulating pipe 25, the discharging pipe 26, the third material circulating pipe 34, the second material conveying pipe 35, the noncondensable gas pipe 42, the condensed water pipe 44, the vacuum pipe 48, the raw steam pipe 51, the first-effect secondary steam pipe 52, the second-effect secondary steam pipe 53, the third-effect secondary steam pipe 54 and the feeding pipe 63 are all provided with electromagnetic control valves, and the electromagnetic control valves are mounted on all the pipelines of the evaporation and concentration device, so that the operation of all the pipelines is convenient to control.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an evaporation concentration device, includes that one imitates evaporation unit, two imitates evaporation unit, three imitate evaporation unit, heating device and condensing equipment, its characterized in that:
the first-effect evaporation unit comprises a first-effect evaporator, a first-effect separator and a first-effect circulating pump;
the double-effect evaporation unit comprises a double-effect evaporator, a double-effect separator, a double-effect circulating pump and a discharge pump;
the triple-effect evaporation unit comprises a triple-effect evaporator, a triple-effect separator and a triple-effect circulating pump;
an inlet of the primary-effect circulating pump is communicated to the primary-effect separator through a pipeline, and an outlet of the primary-effect circulating pump is provided with a first material circulating pipe and a first material conveying pipe; the first-effect circulating pump is communicated to the first-effect evaporator through a first material circulating pipe, and the first-effect circulating pump is communicated to the second-effect separator through a first material conveying pipe;
the inlet of the two-effect circulating pump is communicated to the two-effect separator through a pipeline, and the outlet of the two-effect circulating pump is provided with a second material circulating pipe; the second-effect circulating pump is communicated to the second-effect evaporator through a second material circulating pipe; a discharge pipe is arranged at a discharge port of the two-effect separator, and the discharge pump is communicated with the two-effect separator through the discharge pipe;
the inlet of the triple-effect circulating pump is communicated to the triple-effect separator through a pipeline, and the outlet of the triple-effect circulating pump is provided with a third material circulating pipe and a second material conveying pipe; the three-effect circulating pump is communicated to the three-effect evaporator through a third material circulating pipe, and communicated to the one-effect separator through a second material conveying pipe;
the condensation device comprises a condenser and a non-condensation gas pipe, and the first-effect evaporator, the second-effect evaporator, the third-effect evaporator and the condenser are communicated through the non-condensation gas pipe;
the heat supply device comprises a raw steam pipe, a first-effect secondary steam pipe, a second-effect secondary steam pipe and a third-effect secondary steam pipe, the first-effect evaporator is communicated with the raw steam pipe, the first-effect separator is communicated with the second-effect evaporator through the first-effect secondary steam pipe, the second-effect separator is communicated with the third-effect evaporator through the second-effect secondary steam pipe, and the third-effect separator is communicated with the condenser through the third-effect secondary steam pipe;
the triple-effect evaporator is a falling film evaporator.
2. The evaporative concentration apparatus according to claim 1, further comprising a feed device;
the feeding device comprises a feeding pump, a material tank and a feeding pipe, wherein the feeding pump is respectively connected with the material tank and the three-effect separator through two ends of the feeding pipe.
3. The evaporative concentration apparatus of claim 2, wherein the feed tube is provided with a flow meter.
4. The evaporative concentration apparatus as claimed in claim 1, wherein the single-effect separator, the two-effect separator and the three-effect separator are provided with floating ball control valves.
5. The evaporative concentration apparatus of claim 1, wherein the condensing means further comprises a condensate water tank, a condensate pipe, a condensate pump, a vacuum pump water tank and a vacuum pipe;
the condenser is connected with the inlet of the condensed water tank through a condensed water pipe, and the condensed water pump is communicated with the outlet of the condensed water tank through a pipeline;
and two ends of the vacuum pump are communicated with the vacuum pump water tank and the upper part of the condensed water tank through vacuum tubes.
6. The evaporative concentration apparatus according to claim 1, wherein the noncondensable gas pipe comprises an upper noncondensable gas pipe and a lower noncondensable gas pipe, the upper end of the first-effect evaporator, the upper end of the second-effect evaporator, the upper end of the third-effect evaporator and the condenser are communicated through the upper noncondensable gas pipe, and the lower end of the first-effect evaporator, the lower end of the second-effect evaporator and the lower end of the third-effect evaporator and the condenser are communicated through the lower noncondensable gas pipe.
7. The evaporative concentration apparatus as claimed in claim 1, further comprising an emergency pool and emergency pipes, wherein the emergency pipes are arranged on the first-effect circulating pump, the second-effect circulating pump, the third-effect circulating pump, the feeding pump, the discharging pump and the condensate pump and communicated with the emergency pool.
8. The evaporative concentration apparatus of claim 1, wherein the first effect evaporator and the second effect evaporator are both double-pass circulation evaporators.
9. The evaporative concentration apparatus according to any one of claims 1 to 8, wherein the first material circulation pipe, the first material transport pipe, the second material circulation pipe, the discharge pipe, the third material circulation pipe, the second material transport pipe, the noncondensable gas pipe, the condensed water pipe, the vacuum pipe, the raw steam pipe, the single-effect secondary steam pipe, the two-effect secondary steam pipe, the three-effect secondary steam pipe and the feed pipe are provided with electromagnetic control valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920949782.1U CN210543406U (en) | 2019-06-24 | 2019-06-24 | Evaporation concentration device |
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| CN201920949782.1U CN210543406U (en) | 2019-06-24 | 2019-06-24 | Evaporation concentration device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843761A (en) * | 2021-03-10 | 2021-05-28 | 郑州博大浓缩干燥设备有限公司 | Lees protein production fodder is with lees filter liquor evaporation concentration system |
| CN113772765A (en) * | 2021-05-27 | 2021-12-10 | 湖北中原楚天化工技术有限公司 | Multi-effect evaporator for treating lithium nitrate wastewater |
-
2019
- 2019-06-24 CN CN201920949782.1U patent/CN210543406U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843761A (en) * | 2021-03-10 | 2021-05-28 | 郑州博大浓缩干燥设备有限公司 | Lees protein production fodder is with lees filter liquor evaporation concentration system |
| CN112843761B (en) * | 2021-03-10 | 2022-08-12 | 郑州博大浓缩干燥设备有限公司 | Lees protein production fodder is with lees filter liquor evaporation concentration system |
| CN113772765A (en) * | 2021-05-27 | 2021-12-10 | 湖北中原楚天化工技术有限公司 | Multi-effect evaporator for treating lithium nitrate wastewater |
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