CN114789032A - Integrated reactor for multi-way utilization of supercritical water oxidation reaction heat - Google Patents
Integrated reactor for multi-way utilization of supercritical water oxidation reaction heat Download PDFInfo
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- CN114789032A CN114789032A CN202210468430.0A CN202210468430A CN114789032A CN 114789032 A CN114789032 A CN 114789032A CN 202210468430 A CN202210468430 A CN 202210468430A CN 114789032 A CN114789032 A CN 114789032A
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Abstract
The invention discloses an integrated reactor for multi-path utilization of supercritical water oxidation reaction heat, which comprises a reactor main body, an end part assembly, a bottom end socket, a partition guide cylinder and various heat exchange assemblies. By reasonably arranging the heat exchangers such as the material preheating assembly, the mixed water preheating assembly, the heat taking protection assembly, the wall protection assembly, the top wall temperature control assembly and the like, and the devices such as the dividing guide cylinder, the spiral partition plate and the like in the reactor, the organic material and the mixed water are preheated by utilizing reaction heat, and a byproduct steam or hot water can be generated, so that the recovery and multi-way utilization of the supercritical water oxidation reaction heat of the organic material are realized, the heat efficiency and the economy of the reactor can be improved, and the complexity and the manufacturing cost of a reaction system are reduced; the heat taking protection component and the wall surface protection component can also protect the wall surface of the reactor and prevent the overtemperature. The reactor can be widely applied to the technical field of supercritical water oxidation.
Description
Technical Field
The invention belongs to the technical field of supercritical water oxidation, and particularly relates to an integrated reactor for multi-path utilization of supercritical water oxidation reaction heat.
Background
The supercritical water oxidation technology is a technology capable of realizing deep oxidation treatment on various organic wastes. The principle of the supercritical water oxidation technology is that supercritical water (T)>374.15℃，P>22.12MPa) is used as a reaction medium, and organic matters are quickly converted into CO through homogeneous oxidation reaction by utilizing the excellent organic matter/gas dissolving and transferring performance of the reaction medium 2 、H 2 O、N 2 And other harmless micromolecules, S, P and the like are converted into the highest-valence salts for stabilization, so that the heavy metal oxidation stabilization solid phase exists in the ash, and the harmless treatment and resource utilization of the organic waste are realized.
Because the supercritical water oxidation reaction is carried out at high temperature and high pressure, and simultaneously, the organic matters can release a large amount of heat (reaction heat) in the reaction process, the temperature of the fluid after the reaction reaches a very high temperature. The high-efficiency and reasonable utilization of the heat of the high-temperature fluid after the reaction greatly improves the heat efficiency and the economical efficiency of the reactor. The traditional supercritical water oxidation reactor generally leads high-temperature fluid after reaction out of the reactor, and then carries out reaction heat recovery by using a heat exchanger, so that the defects of complex system, large heat exchange surface, serious corrosion of the wall surface of the reactor due to overhigh temperature, high risk of pipeline blockage caused by salt deposition, high cost and the like are existed.
Therefore, in order to solve the above problems, achieve multi-way utilization of the reaction heat of supercritical water oxidation, and improve the thermal efficiency and economy of the supercritical water oxidation reactor, a new reactor needs to be invented.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide an integrated reactor for utilizing the reaction heat of supercritical water in multiple ways.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the invention provides an integrated reactor for utilizing supercritical water oxidation reaction heat in multiple ways, which comprises:
the upper end of the reactor main body is connected with the end component in a sealing manner, and the lower end of the reactor main body is connected with the bottom end enclosure in a sealing manner; a partition guide cylinder is arranged in the reactor main body and is used for partitioning the inner cavity of the reactor main body into different reaction areas; the bottom of the side surface of the reactor main body is provided with a leading-out port of the reacted fluid collector;
the end part assembly is provided with a supercritical water injection port, an oxidant injection port and a material injection port which are communicated with the inner cavity of the reactor main body;
the bottom end enclosure is communicated with the inner cavity of the reactor main body, a solid-phase product after reaction in the reactor main body is deposited in the bottom end enclosure, and the bottom of the bottom end enclosure is provided with a solid-phase product outlet.
The invention further improves the following steps:
the wall surface of the reactor main body is provided with a wall surface protection component, and the wall surface protection component is provided with a wall surface protection component inlet and a wall surface protection component outlet.
The dividing guide cylinder is a first guide cylinder and a second guide cylinder which are sequentially sleeved, and the first guide cylinder is arranged in the second guide cylinder; the inner part of the first guide cylinder is a first reaction zone, the area between the first guide cylinder and the second guide cylinder is a second reaction zone, and the area between the second guide cylinder and the wall surface of the reactor main body is a third reaction zone;
the upper part of the first reaction area is communicated with the supercritical water injection port, the oxidant injection port and the material injection port; the lower part of the reaction kettle is respectively communicated with the second reaction zone and the bottom end enclosure; the upper part of the second reaction zone is connected with a third reaction zone; and a heat taking protection component, a blending water preheating component, a material preheating component and a fluid collector after reaction are sequentially arranged in the third reaction zone from top to bottom.
And a heating device is arranged in the first reaction zone.
And a spiral clapboard is arranged in the third reaction zone.
The heat taking protection component is provided with a heat taking protection component introduction port and a heat taking protection component leading-out port.
Mix and to have seted up on the water preheating component that mixes water and preheat subassembly introduction mouth and mixing water and preheat subassembly outlet.
The material preheating assembly is provided with a material preheating assembly inlet and a material preheating assembly outlet.
The end part assembly is provided with a top wall surface temperature control assembly, and the top wall surface temperature control assembly is provided with a top wall surface temperature control assembly inlet and a top wall surface temperature control assembly outlet.
The wall of the bottom end enclosure is provided with a bottom wall temperature control assembly, and the bottom wall temperature control assembly is provided with a bottom wall temperature control assembly inlet and a bottom wall temperature control assembly outlet.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes the cooperation of heat exchangers such as a material preheating component, a mixed water preheating component, a heat taking protection component, a top wall surface temperature control component, a wall surface protection component and the like with the partition guide cylinder and the spiral partition plate, realizes the recovery and multi-way utilization of supercritical water oxidation reaction heat of organic materials, can also generate byproducts such as steam or hot water and the like by the heat taking protection component, improves the heat efficiency and the economical efficiency of the reactor, and can greatly reduce the complexity and the manufacturing cost of a reaction system. The invention protects the wall surface of the reactor by utilizing the heat taking protection component and the wall surface protection component, can effectively prevent the over-temperature phenomenon and ensure the safe reliability of the operation of the reactor. Meanwhile, the heat taking protection assembly can also be used as an extended heating surface for mixing water, so that the adjustability of the reactor is improved. The invention utilizes the top wall surface temperature control component on the end component to introduce hot water generated after heat absorption in the wall surface protection component into the top wall surface temperature control component, can reduce the heat dissipated from the end component, and simultaneously realizes the temperature control of a supercritical water oxidation reaction area by matching with a heating device, thereby improving the reaction stability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic sectional view of the structure of a reactor according to the present invention.
Wherein, 1-an end component, 2-a reactor body, 3-a wall surface protection component, 4-a heat taking protection component, 5-a divided guide shell, 6-a mixed water preheating component, 7-a spiral clapboard, 8-a material preheating component, 9-a reacted fluid collector, 10-a bottom end enclosure, 11-a heating device, 12-a top wall surface temperature control component, 13-a bottom wall surface temperature control component, N1-a supercritical water injection port, N2-an oxidant injection port, N3-a material injection port, N4-a top wall surface temperature control component introduction port, N5-a wall surface protection component extraction port, N6-a top wall surface temperature control component extraction port, N7-a wall surface protection component introduction port, N8-a heat taking protection component extraction port, N9-a mixed water preheating component extraction port, n10-material preheating component outlet, N11-heat taking protection component inlet, N12-mixed water preheating component inlet, N13-material preheating component inlet, N14-fluid collector outlet after reaction, N15-bottom wall surface temperature control component outlet, and N16-bottom wall surface temperature control component inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be broadly construed and interpreted as including, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; 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 by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the embodiment of the invention discloses an integrated reactor for utilizing supercritical water oxidation reaction heat in multiple ways, which comprises an end component 1, a reactor main body 2 and a bottom end enclosure 10; wherein, the end part assembly 1 is provided with a top wall surface temperature control assembly 12, a supercritical water injection port N1, an oxidant injection port N2 and a material injection port N3; the wall surface of the reactor main body 2 is provided with a wall surface protection component 3, and a dividing guide shell 5, a heat taking protection component 4, a mixing water preheating component 6, a material preheating component 8, a spiral partition plate 7, a fluid collector 9 after reaction and a heating device 11 are arranged in the reactor main body; a bottom wall surface temperature control assembly 13 is arranged on the bottom end enclosure 10; the heat taking protection component 4 can be used as an extended heating surface for mixing water; when the mixed water does not need to be expanded to be heated, normal-temperature low-pressure water flows inside the mixed water, and the mixed water plays a role in overtemperature protection.
The top wall surface temperature control component 12 is provided with a top wall surface temperature control component inlet N4 and a top wall surface temperature control component outlet N6, the wall surface protection component 3 is provided with a wall surface protection component inlet N7 and a wall surface protection component outlet N5, the heat taking protection component 4 is provided with a heat taking protection component inlet N11 and a heat taking protection component outlet N8, the mixed water preheating component 6 is provided with a mixed water preheating component inlet N12 and a mixed water preheating component outlet N9, the material preheating component 8 is provided with a material preheating component inlet N13 and a material preheating component outlet N10, the reacted fluid collector 9 is provided with a reacted fluid collector outlet N14, and the bottom wall surface temperature control component 13 is provided with a bottom wall surface temperature control component inlet N16 and a bottom wall surface temperature control component outlet N15.
A top wall temperature control component inlet N4 and a top wall temperature control component outlet N6, a wall protection component inlet N7 and a wall protection component outlet N5, a heat removal protection component inlet N11 and a heat removal protection component outlet N8, a mixed water preheating component inlet N12 and a mixed water preheating component outlet N9, a material preheating component inlet N13 and a material preheating component outlet N10, a bottom wall temperature control component inlet N16 and a bottom wall temperature control component outlet N15 can be arranged on the end component 1, the reactor main body 2 or the bottom head 10.
The heat taking protection component 4, the blending water preheating component 6 and the material preheating component 8 are arranged in a spiral channel formed by a spiral partition plate 7. The inlet and outlet of the bottom wall surface temperature control assembly 13, the wall surface protection assembly 3, the top wall surface temperature control assembly 12 and the mixed water heating assembly 6 are connected in sequence. The connection between the reactor body 2 and the end assembly 1 and the bottom head 10 includes, but is not limited to, bolting, screwing, welding, etc.
Based on the structure, the working process of the invention is as follows:
when the reactor runs, cooling water with normal temperature and high pressure enters the bottom wall surface temperature control assembly 13 on the bottom end enclosure 10 to cool the bottom end enclosure 10; then enters the wall surface protection component 3 to absorb reaction heat and protect the wall surface of the reactor; then, the water enters a top wall surface temperature control assembly 12 on the end assembly 1 to adjust and control the wall surface temperature of the supercritical water oxidation reaction equipment; then, the reaction heat is absorbed by a mixed water preheating assembly 6 to become supercritical water, and then the supercritical water enters the reactor from a supercritical water injection port N1; the oxidant enters the reactor from an oxidant injection port N2; and the organic material with normal temperature and high pressure absorbs the reaction heat through the material preheating assembly 8 to reach a high-temperature subcritical state, and then enters the reactor from the material injection port N3.
In the reactor, the organic material in a subcritical state, the oxidant and the supercritical water are mixed and subjected to a supercritical water oxidation reaction, and simultaneously heated by the heating device 11, so as to maintain a temperature required by the reaction. Since the supercritical water oxidation reaction releases a large amount of reaction heat, the reaction product has a high temperature. Then the high-temperature and high-pressure liquid phase reaction product enters a diversion reaction area to continue to react, and the solid phase product is deposited in the bottom end socket 10.
The high-temperature high-pressure liquid-phase reaction product enters a reaction heat recovery area after passing through the diversion reaction area, is subjected to heat transfer with the heat taking protection component 4, the mixed water preheating component 6, the material preheating component 8 and the wall surface protection component 3, and the liquid-phase reaction product after heat exchange is reduced to a subcritical state and finally flows into a fluid collector 9 after reaction and is led out of the reactor. The rotating partition plate 7 in the reaction heat recovery area can slow down the flow of fluid and enhance the heat exchange effect.
The heat taking protection component 4 and the blending water preheating component 6 can be connected in series outside the reactor and used as an expanded heating surface of the blending water, so that the heat absorption of the blending water is further enhanced. When the heating protection component 4 is not used as an extended heating surface, normal-temperature low-pressure water flows into the heating protection component 4 to play a role in overtemperature protection, and byproducts such as steam or hot water can be generated.
The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. 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 (10)
1. An integrated reactor for multi-path utilization of reaction heat of supercritical water oxidation, comprising:
the upper end of the reactor main body (2) is connected with the end assembly (1) in a sealing manner, and the lower end of the reactor main body (2) is connected with the bottom end enclosure (10) in a sealing manner; a dividing guide cylinder (5) is arranged in the reactor main body (2) and is used for dividing the inner cavity of the reactor main body (2) into different reaction areas; the bottom of the side surface of the reactor main body (2) is provided with a leading-out port (N14) of the fluid collector after reaction;
the end part assembly (1), the end part assembly (1) is provided with a supercritical water injection port (N1), an oxidant injection port (N2) and a material injection port (N3) which are communicated with the inner cavity of the reactor main body (2);
the reactor comprises a bottom end enclosure (10), the bottom end enclosure (10) is communicated with an inner cavity of the reactor main body (2), a solid-phase product after reaction in the reactor main body (2) is deposited in the bottom end enclosure (10), and a solid-phase product outlet is formed in the bottom of the bottom end enclosure (10).
2. The reactor of claim 1, wherein the wall surface of the reactor body (2) is provided with a wall surface protection component (3), and the wall surface protection component (3) is provided with a wall surface protection component inlet (N7) and a wall surface protection component outlet (N5).
3. The integrated reactor for multi-path utilization of supercritical water oxidation reaction heat according to claim 1, wherein the dividing draft tube (5) is a first draft tube and a second draft tube which are sequentially sleeved, and the first draft tube is arranged in the second draft tube; the inner part of the first guide cylinder is a first reaction zone, the area between the first guide cylinder and the second guide cylinder is a second reaction zone, and the area between the second guide cylinder and the wall surface of the reactor main body (2) is a third reaction zone;
the upper part of the first reaction zone is communicated with a supercritical water injection port (N1), an oxidant injection port (N2) and a material injection port (N3); the lower part of the reaction chamber is respectively communicated with the second reaction zone and the bottom end enclosure (10); the upper part of the second reaction zone is connected with a third reaction zone; the heat taking protection component (4), the mixing water preheating component (6), the material preheating component (8) and the fluid collector (9) after reaction are sequentially arranged in the third reaction zone from top to bottom.
4. The integrated reactor for multi-path utilization of reaction heat of supercritical water oxidation according to claim 3 is characterized in that a heating device (11) is arranged in the first reaction zone.
5. The integrated reactor for multi-path utilization of reaction heat of supercritical water oxidation according to claim 3 is characterized in that a spiral baffle (7) is arranged in the third reaction zone.
6. The integrated reactor for utilizing the heat of supercritical water oxidation reaction by multiple ways according to claim 3, 4 or 5, wherein the heat taking protection component (4) is provided with a heat taking protection component inlet (N11) and a heat taking protection component outlet (N8).
7. The integrated reactor for multi-path utilization of supercritical water oxidation reaction heat according to claim 3, 4 or 5, wherein the mixed water preheating assembly (6) is provided with a mixed water preheating assembly introduction port (N12) and a mixed water preheating assembly extraction port (N9).
8. The integrated reactor for multi-path utilization of supercritical water oxidation reaction heat according to claim 3, 4 or 5, wherein the material preheating component (8) is provided with a material preheating component inlet (N13) and a material preheating component outlet (N10).
9. The integrated reactor for multi-path utilization of supercritical water oxidation reaction heat according to claim 1, wherein a top wall temperature control assembly (12) is arranged on the end assembly (1), and a top wall temperature control assembly inlet (N4) and a top wall temperature control assembly outlet (N6) are formed on the top wall temperature control assembly (12).
10. The integrated reactor for multi-path utilization of supercritical water oxidation reaction heat according to claim 1, wherein a bottom wall temperature control assembly (13) is arranged on the wall surface of the bottom head (10), and a bottom wall temperature control assembly introduction port (N16) and a bottom wall temperature control assembly extraction port (N15) are formed in the bottom wall temperature control assembly (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210468430.0A CN114789032A (en) | 2022-04-29 | 2022-04-29 | Integrated reactor for multi-way utilization of supercritical water oxidation reaction heat |
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| CN202210468430.0A CN114789032A (en) | 2022-04-29 | 2022-04-29 | Integrated reactor for multi-way utilization of supercritical water oxidation reaction heat |
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| CN105152509A (en) * | 2015-09-10 | 2015-12-16 | 新奥科技发展有限公司 | Supercritical reactor, supercritical reaction system and supercritical treatment method of sludge |
| CN107930538A (en) * | 2017-12-26 | 2018-04-20 | 新奥科技发展有限公司 | A kind of overcritical water oxidization reactor, supercritical water oxidation system and method |
| CN112850874A (en) * | 2021-01-20 | 2021-05-28 | 贵州航天朝阳科技有限责任公司 | Supercritical water oxidation reaction device |
| CN113582507A (en) * | 2021-07-30 | 2021-11-02 | 西安交通大学 | Oily sludge pyrohydrolysis-supercritical oxidation recycling treatment system and method capable of comprehensively utilizing energy |
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2022
- 2022-04-29 CN CN202210468430.0A patent/CN114789032A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152509A (en) * | 2015-09-10 | 2015-12-16 | 新奥科技发展有限公司 | Supercritical reactor, supercritical reaction system and supercritical treatment method of sludge |
| CN107930538A (en) * | 2017-12-26 | 2018-04-20 | 新奥科技发展有限公司 | A kind of overcritical water oxidization reactor, supercritical water oxidation system and method |
| CN112850874A (en) * | 2021-01-20 | 2021-05-28 | 贵州航天朝阳科技有限责任公司 | Supercritical water oxidation reaction device |
| CN113582507A (en) * | 2021-07-30 | 2021-11-02 | 西安交通大学 | Oily sludge pyrohydrolysis-supercritical oxidation recycling treatment system and method capable of comprehensively utilizing energy |
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