CN215975043U - Water evaporation treatment equipment - Google Patents
Water evaporation treatment equipment Download PDFInfo
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- CN215975043U CN215975043U CN202121430849.4U CN202121430849U CN215975043U CN 215975043 U CN215975043 U CN 215975043U CN 202121430849 U CN202121430849 U CN 202121430849U CN 215975043 U CN215975043 U CN 215975043U
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Abstract
A water evaporation treatment device is provided with an evaporator shell, a high-temperature steam inlet is arranged at the lower part of the evaporator shell, a steam collecting box body is arranged at the top of the evaporator shell and provided with a low-temperature steam outlet, a contact type surface evaporation mechanism is arranged in the evaporator shell, a wastewater distribution device is arranged on the contact type surface evaporation mechanism, and a cleaning device which is matched with a contact element to remove surface residues is arranged. And an evaporation residue collecting device is arranged at the bottom of the evaporator shell. It adopts high-temperature water vapor as heat transfer working medium, and is equipped with contact element capable of increasing direct contact area of water and high-temperature water vapor, so that the water and high-temperature water vapor can be directly contacted on the surface of contact element in large area to quickly implement heat exchange. Residues remaining after the water evaporation adhere to the contact element surfaces. The product remaining on the surface can be removed as a solid residue. Has the advantages of low energy consumption, low evaporation cost and capability of recycling the waste water.
Description
Technical Field
The utility model relates to an evaporator, in particular to water evaporation treatment equipment.
Background
At present, the waste water discharged by the flue gas desulfurization and denitration treatment of a thermal power plant is very difficult to treat, and an optimal treatment method is not found all the time. In some power plants, the waste water is directly sprayed into high-temperature flue gas at the tail of a boiler to evaporate the waste water into steam, and the steam is discharged into the atmosphere along with the flue gas. The method seems to solve the problem of waste water discharge, but is an undesirable method, which wastes a large amount of energy and causes serious corrosion of tail flue and other equipment structures.
Disclosure of Invention
The utility model aims to solve the technical problem of the prior art and provides water evaporation treatment equipment which is low in energy consumption and evaporation cost and can recycle waste water.
The technical problem to be solved by the utility model is realized by the following technical scheme, and the water evaporation treatment equipment is characterized in that:
the device is provided with an evaporator shell, a high-temperature steam inlet is arranged at the lower part of the evaporator shell, a steam collecting box body is arranged at the top of the evaporator shell, a low-temperature steam outlet is arranged in the steam collecting box body, a steam-water direct contact type surface evaporation mechanism is arranged in the evaporator shell between the high-temperature steam inlet and the steam collecting box body, a water distribution device is arranged between the upper surface of the steam-water direct contact type surface evaporation mechanism and the steam collecting box body, and the steam-water direct contact type surface evaporation mechanism is a contact element for carrying out steam-water direct contact type heating continuous evaporation on water to be treated by high-temperature steam.
The technical problem to be solved by the utility model can be further solved by the following technical scheme that a cleaning device matched with the contact element for removing surface residues is arranged.
The technical problem to be solved by the present invention can be further solved by the following solution, wherein the removing means is a scraper cooperating with the contact element.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that an evaporation residue collecting device is arranged at the bottom of the evaporator shell.
The technical problem to be solved by the utility model can be further solved by adopting the following technical scheme that the evaporation residue collecting device comprises a conveying device arranged at the bottom of the evaporator shell, and a residue outlet is arranged on the evaporator shell at the residue discharging end of the conveying device.
The technical problem to be solved by the utility model can be further solved by the following technical scheme that a plurality of groups are arranged on the contact elements side by side from top to bottom, and each group is formed by combining a single roller or a plurality of rollers.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that the contact element is provided with a rotating shaft, and a contact adsorption evaporation body is fixedly arranged on the rotating shaft.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that the contact adsorption evaporation body is of a single cylinder structure or a combined structure of a plurality of unit bodies.
The technical problem to be solved by the utility model can be further realized by adopting the following technical scheme that the unit body is one or a combination of a cylindrical barrel body, a spherical body, an oval spherical body, a polyhedral spherical body, a disc-shaped body or a truncated cone-shaped body.
Compared with the prior art, the utility model adopts high-temperature water vapor as a heat transfer working medium and operates at normal pressure or close to normal pressure. The water evaporation treatment equipment is internally provided with a contact element for increasing the direct contact area of water and high-temperature water vapor, so that the water and the high-temperature water vapor are directly contacted with each other on the surface of the contact element in a large area to rapidly carry out heat exchange. Residues remaining after the water evaporation adhere to the contact element surfaces. The product remaining on the surface can be removed as a solid residue. Has the advantages of low energy consumption, low evaporation cost and capability of recycling the waste water.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a view taken along line A-A of FIG. 1;
FIG. 3 is a schematic diagram of a multi-layer, multi-column arrangement;
FIG. 4 is a perspective view of B-B of FIG. 3;
FIG. 5 is a schematic view of a unit cell being a cylindrical barrel;
FIG. 6 is a schematic view of a cell body being a sphere;
FIG. 7 is a schematic view of a cell body being an ellipsoid;
FIG. 8 is a schematic view of the unit body being a disk-shaped body;
fig. 9 is a schematic view of the unit body being a circular truncated cone.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, and in order to make those skilled in the art understand the present invention further, the embodiments of the present invention will be described in detail and fully with reference to the accompanying drawings. 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.
A water evaporation treatment device is provided with an evaporator shell, a high-temperature steam inlet is arranged at the lower part of the evaporator shell, a steam collecting box body is arranged at the top of the evaporator shell and provided with a low-temperature steam outlet, a contact type surface evaporation mechanism is arranged inside the evaporator shell between the high-temperature steam inlet and the steam collecting box body, a wastewater distribution device is arranged between the upper surface of the contact type surface evaporation mechanism and the steam collecting box body, and the steam-water direct contact type surface evaporation mechanism is a contact element for carrying out steam-water direct contact type heating continuous evaporation on water to be treated by high-temperature steam.
A cleaning device is provided for removing surface residue in cooperation with the contact element. The clearing means is a scraper cooperating with the contact element.
And an evaporation residue collecting device is arranged at the bottom of the evaporator shell. The evaporation residue collecting device comprises a conveying device arranged at the bottom of the evaporator shell, and a residue outlet is formed in the evaporator shell at the residue discharging end of the conveying device. An evaporation residue cleaning device is arranged at the residue outlet.
The contact elements are arranged in a plurality of groups side by side from top to bottom, and each group is formed by combining a single roller or a plurality of rollers.
The contact element is provided with a rotating shaft, and a contact adsorption evaporation body is fixedly arranged on the rotating shaft.
The contact adsorption evaporation body is of a single cylinder structure or a combined structure of a plurality of unit bodies.
The unit body is one or a combination of a cylindrical barrel body, a spherical body, an elliptic spherical body, a polyhedral spherical body, a disc-shaped body or a circular table-shaped body.
The residue removing device for the surface of the contact element of the water evaporator is different from residue removing devices for contact elements with different shapes. The contact element can be directly cleaned from the surface in the water evaporator, or the contact element can be moved out of the water evaporator to clean the surface residue, and the contact element after the residue is removed is refilled into the evaporator for continuous use after the residue on the surface of the contact element is removed.
As shown in the structural schematic diagram of a cylindrical contact element water evaporator, the water evaporator comprises an evaporator shell 1, a water distribution device 2, a contact element 3, a cleaning device 4, a steam collection box 5, a high-temperature steam inlet 6, a low-temperature steam outlet 7, an evaporation residue collection device 8, an evaporation residue cleaning device 9, shafts at two ends of the contact element, a bearing and shaft seal assembly 10, a contact element rotation driving device and the like.
The contact element 3 and the surface residue removing device 4 are the core of the present invention, and as shown in the figure, the schematic half-section view of the structure of some types of contact elements of the water evaporator of the present invention, the contact element 3 of the water evaporator of the present invention is a three-dimensional body such as a cylindrical barrel, a spherical body, an elliptic sphere, a polyhedral sphere, a disc-shaped body, a circular table-shaped body, etc., a rotating body formed by connecting a plurality of three-dimensional bodies in series, a stacked body formed by stacking a plurality of three-dimensional bodies together, etc., and may be other various bodies not shown in the schematic view. According to the actual application requirement, a proper geometric shape is selected as the contact element 3 to manufacture the corresponding water evaporator.
The contact element 3, the surface residue removing device 4, the water distribution device, the shell and other parts which are in contact with water of the water evaporator are made of corrosion-resistant and high-temperature-resistant materials, the adopted materials can be corrosion-resistant stainless steel materials such as 2205, 2507 and the like, and the surfaces of the materials such as carbon steel, stainless steel and the like can be lined or coated with corrosion-resistant and high-temperature-resistant anticorrosive layers such as teflon and the like.
The contact member 3 surface residue removing device 4 is a device for removing evaporation residues attached to the surface of the contact member 3. The residue removing means 4 used in water evaporators with differently shaped contact elements 3 are different. The contact element 3 may be cleaned directly from the water evaporator, or the contact element 3 may be removed from the water evaporator to remove surface residues, for example, by mechanically grinding the surface residues of the spherical contact element 3 with a ball mill or the like, and then refilling the spherical contact element with the removed residues back into the evaporator to evaporate water.
The use of the contact element 3 in conjunction with its surface debris removal means 4 is central to the present invention. Through the cooperation of the residue removing device 4 and the contact element 3, water absorbs the contacted high-temperature steam on the surface of the contact element 3 to be evaporated with high efficiency, and the residue left after the water evaporation is continuously removed by the residue removing device 4, so that the continuous and high-efficiency evaporation of the water is realized.
The structure and operation of the water evaporator of the present invention will be illustrated by the cylindrical contact element water evaporator of the present invention.
Structural description of cylindrical contact element water evaporator
Cylindrical contact element the contact element 3 of the water evaporator which increases the direct contact area of the water with the heating steam is hollow cylindrical.
As shown in the figure, the cylindrical contact element water evaporator is composed of an evaporator shell 1, a water distribution device 2, a contact element 3 surface residue removing device 4, a steam collecting device 5, a heating steam inlet 6, a steam outlet 7, an evaporation residue collecting device 8, an evaporation residue removing device 9, shafts at two ends of the contact element 3, a bearing and shaft seal assembly 10, a contact element 3 rotation driving device 11 and the like.
The contact element 3 of the water evaporator shown in this figure is a cylindrical contact element, and 4 cylindrical contact elements 3 are horizontally arranged in parallel in 1 row. The cylindrical contact member 3 functions to directly contact and exchange heat between the heated high-temperature water vapor and water on the surface thereof, directly transfer the heat of the high-temperature water vapor to the water, evaporate the water into water vapor, and attach the evaporation residue to the surface thereof.
The water distribution device 2 is a device which applies water to the surface of the contact element 3 and makes the water form a thin water film on the surface of the contact element 3.
The steam collector 5 is a device for collecting the heated high-temperature steam and the newly evaporated steam after transferring heat to water, and has the functions of collecting the steam and more importantly enabling the heated steam to uniformly flow out of the evaporator. After steam enters the steam collecting device 5, a part of steam is sucked out by the fan and is conveyed to the steam heater for heating and temperature rise; the other part of steam is sucked out in quantity corresponding to the steam quantity evaporated from the water and enters the steam condenser to be condensed into water, and the condensed water is output by the water recovery pump for recycling.
The residue removing device 4 is a device for removing evaporation residues adhering to the surface of the contact member 3. Cylindrical contact element 3 the water evaporator employs a residue removal device 4 similar to a scraper. The residue removing device 4 is in contact with the residue on the cylindrical contact member 3 to scrape the residue on the surface of the rotating cylindrical contact member 3. The water evaporator of the multi-layered contact element 3 drops the residue scraped off on the surface of the upper-layered cylindrical contact element 3 onto the surface of the lower-layered cylindrical contact element 3. The upper residue removing means 4 has the function of wiping off the residue on the surface of the upper contact member 3 and of re-applying the fallen residue to the surface of the lower cylindrical contact member 3. The scraped residue and the water dropped and not evaporated fall onto the lower cylindrical contact member 3, and are recoated on the surface of the lower cylindrical contact member 3 by the residue removing means 4 to absorb heat and continue to evaporate.
The residue remaining after evaporation of the lowermost contact element 3 is cleaned by the residue cleaning device 4 and falls into the residue collection device 8. The residue collected by the residue collection device 8 is cleaned out of the evaporator by the evaporation residue cleaning device 9. The evaporation residue cleaning device 9 is provided with a steam lock which only allows the evaporation residue to be discharged and does not allow the steam to be discharged.
Multi-layer multi-row arranged cylindrical contact element water evaporator
The cylindrical contact element 3 of the cylindrical contact element water evaporator can be used independently, can also be used in a plurality of ways, and can be arranged horizontally or vertically; the multilayer ceramic plate can be arranged in a single-row multilayer manner or in a plurality of rows and layers.
For example, as shown in the figure, the structure of the cylindrical contact element water evaporator which is arranged in multiple layers and multiple rows is slightly different from that of the cylindrical contact element water evaporator shown in the structure diagram of the cylindrical contact element water evaporator shown in FIG. 1, the cylindrical contact elements 3 are arranged in multiple layers and multiple rows, and the rotation of the contact elements 3 is driven by a cylindrical contact element rotation driving device 13 through a chain wheel 11 and a chain 12.
Description of the operating principle of a cylindrical contact element Water evaporator
The heat transfer medium adopted by the cylindrical contact element water evaporator is high-temperature water vapor at normal pressure or close to normal pressure.
As shown in the figure, the water evaporator with cylindrical contact elements is structurally schematic, when in use, the conveying fan operates to suck out the water vapor in the water evaporator from the steam collector 5 and convey the water vapor to the steam heater, and the steam heater transfers the heat of the heat source to the water vapor to heat the water vapor into high-temperature steam. The high-temperature steam from the steam heater enters the water evaporator from the heating steam inlet 6, and the entering high-temperature steam flows through the space around the contact element 3.
The water to be evaporated is delivered to the water distribution device 2 by a water pump, and the water distribution device 2 brushes the water on the surface of the contact element 3, so that the water forms a thin water film on the surface of the contact element 3. The high temperature steam flowing through the space around the contact element 3 comes into direct contact with the water on the surface of the contact element 3, transferring heat directly to the water to evaporate the water into steam. After the steam generated by the evaporation of the heated water is mixed with the high-temperature steam, the temperature of the heated steam is reduced, and then the steam continues to flow to transfer heat to the water passing through the surface of the contact element 3.
The rotary driving device 11 drives the cylindrical contact element 3 to rotate through the shafts at the two ends of the contact element 3, the bearing and the shaft of the shaft seal assembly 10, and the blade of the residue removing device 4 which is not in motion contacts with the evaporation residues on the surface of the contact element 3 to scrape the evaporation residues.
The mixture of the evaporation residue and the water which is remained after the water on the surface of the contact element 3 of the upper layer is evaporated is cleaned by the residue cleaning device 4, falls onto the surface of the contact element 3 of the lower layer, is coated on the surface of the contact element 3 of the lower layer again by the residue cleaning device 4, and the like.
And finally, the residual residues after the continuous evaporation and drying of the contact element 3 at the lowest layer are cleaned by the residue cleaning device 4 and fall into the residue collecting device 8. Residue collection device 8 is similar with boiler scraper feeder, and speed reducer gear pulling chain removes, and the chain pulling scraper blade that removes pushes away the residue of collecting inside and scrapes in evaporation residue cleaning device 9. The evaporation residue cleaning device 9 is a screw conveyor, and the screw conveyor rotates to convey out the evaporation residue entering the inside. The steam lock is arranged at the outlet of the evaporation residue cleaning device 9 and only discharges evaporation residues and does not discharge steam.
Claims (9)
1. A water evaporation treatment apparatus characterized by: the device is provided with an evaporator shell, a high-temperature steam inlet is arranged at the lower part of the evaporator shell, a steam collecting box body is arranged at the top of the evaporator shell, a low-temperature steam outlet is arranged in the steam collecting box body, a steam-water direct contact type surface evaporation mechanism is arranged in the evaporator shell between the high-temperature steam inlet and the steam collecting box body, a water distribution device is arranged between the upper surface of the steam-water direct contact type surface evaporation mechanism and the steam collecting box body, and the steam-water direct contact type surface evaporation mechanism is a contact element for carrying out steam-water direct contact type heating continuous evaporation on water to be treated by high-temperature steam.
2. The water evaporation treatment apparatus according to claim 1, wherein: a cleaning device is provided for removing the residue on the surface of the contact element in cooperation with the contact element.
3. The water evaporation treatment apparatus according to claim 2, wherein: the clearing means is a scraper cooperating with the contact element.
4. The water evaporation treatment apparatus according to claim 1, wherein: and an evaporation residue collecting device is arranged at the bottom of the evaporator shell.
5. The water evaporation treatment apparatus according to claim 4, wherein: the evaporation residue collecting device comprises a conveying device arranged at the bottom of the evaporator shell, and a residue outlet is formed in the evaporator shell at the residue discharging end of the evaporator conveying device.
6. The water evaporation treatment apparatus according to claim 1, wherein: the contact elements are arranged in a plurality of groups side by side from top to bottom, and each group is formed by combining a single roller or a plurality of rollers.
7. The water evaporation treatment apparatus according to claim 1, wherein: the contact element is provided with a rotating shaft, and a contact adsorption evaporation body is fixedly arranged on the rotating shaft.
8. The water evaporation treatment apparatus according to claim 7, wherein: the contact adsorption evaporation body is of a single cylinder structure or a combined structure of a plurality of unit bodies.
9. The water evaporation treatment apparatus according to claim 8, wherein: the unit body is one or a combination of a cylindrical barrel body, a spherical body, an elliptic spherical body, a polyhedral spherical body, a disc-shaped body or a circular table-shaped body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121430849.4U CN215975043U (en) | 2021-06-25 | 2021-06-25 | Water evaporation treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121430849.4U CN215975043U (en) | 2021-06-25 | 2021-06-25 | Water evaporation treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215975043U true CN215975043U (en) | 2022-03-08 |
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ID=80578438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121430849.4U Active CN215975043U (en) | 2021-06-25 | 2021-06-25 | Water evaporation treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215975043U (en) |
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2021
- 2021-06-25 CN CN202121430849.4U patent/CN215975043U/en active Active
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