CN211688380U - Application system of supercritical water oxidation reaction product - Google Patents
Application system of supercritical water oxidation reaction product Download PDFInfo
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- CN211688380U CN211688380U CN201922125984.7U CN201922125984U CN211688380U CN 211688380 U CN211688380 U CN 211688380U CN 201922125984 U CN201922125984 U CN 201922125984U CN 211688380 U CN211688380 U CN 211688380U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model discloses an application system of supercritical water oxidation reaction product, include: the high-pressure hydrocyclone comprises a feeding inlet, a bottom discharge outlet and an overflow outlet, wherein the feeding inlet is used for inputting supercritical water oxidation reaction products at high temperature and high pressure, the bottom discharge outlet is used for discharging solid particles containing inorganic salt, and the overflow outlet is used for leading out high-temperature and high-pressure fluid; the heat storage device comprises a heat flow inlet, a heat flow outlet, a cold water inlet and a hot water outlet, and the heat flow inlet is communicated with the overflow port; and the backpressure valve is arranged at the heat flow outlet. The problem of prior art supercritical water oxidation reaction product waste heat effective utilization is lower is solved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of waste heat and excess pressure are retrieved, concretely relates to application system of supercritical water oxidation reaction product.
[ background of the invention ]
Supercritical water oxidation is a process of oxidizing organic substances in water, which are oxidized to CO, using oxygen or air as an oxidant at a temperature and pressure higher than the critical point of water (374.15 ℃ and 22.12MPa)2、H2O、N2And the like, and the technology is widely concerned by scholars at home and abroad due to the high efficiency and cleanness of the technology. Supercritical water oxidation technology is usually used for treating high-concentration organic matters which are difficult to degrade, COD in the organic matters is generally 20000mg/L to 400000mg/L, the calorific value of unit COD is about 14.8kJ/g, the supercritical water oxidation reaction releases a large amount of heat energy, the temperature of reaction products is above 400 ℃, the reaction products have higher energy, and the energy recovery can be realized to reduce the energy consumption of the system.
In a supercritical water oxidation system, a cooler is usually connected to an outlet of a reactor to cool a high-temperature product to a normal temperature, and the heated cooling water is used by the outside. However, because elements such as Cl, P, S and the like in the organic matters are oxidized into inorganic salts, most of the inorganic salts in the supercritical water have low solubility and are easy to precipitate, and the precipitation of the inorganic salts can influence the heat transfer between fluids in the cooler; when the precipitation amount is large, a heat flow inlet of a cooler and the like are blocked, system pressure fluctuation is caused, and shutdown is caused. In addition, because the hot end and the heat supply end are often inconsistent in quantity and time, when the heat demand is small, a small part of hot water can meet the heat demand, and the residual heat can only be wasted, so that the effective utilization rate of the hot water supplied by the temperature rise of the cooler is low, and energy waste is caused.
[ Utility model ] content
The utility model aims at providing an application system of supercritical water oxidation reaction product to solve the lower problem of prior art supercritical water oxidation reaction product waste heat effective utilization.
The utility model adopts the following technical scheme: a system for using supercritical water oxidation reaction products, comprising:
the high-pressure hydrocyclone comprises a feeding inlet, a bottom discharge outlet and an overflow outlet, wherein the feeding inlet is used for inputting supercritical water oxidation reaction products at high temperature and high pressure, the bottom discharge outlet is used for discharging solid particles containing inorganic salt, and the overflow outlet is used for leading out high-temperature and high-pressure fluid;
the heat storage device comprises a heat flow inlet, a heat flow outlet, a cold water inlet and a hot water outlet, and the heat flow inlet is communicated with the overflow port;
a back pressure valve arranged at the heat flow outlet.
Further, still include a heat exchanger, the heat exchanger includes heat flow entry I, hot flow export I, cold water entry I and hot water export I, heat flow entry I and overflow mouth intercommunication.
Furthermore, the hot flow outlet is communicated with a hot flow outlet I, the cold water inlet I is communicated with a cold water inlet, and the hot water outlet I is communicated with a hot water outlet.
The utility model has the advantages that: a high-pressure hydraulic cyclone is added between the outlet of the supercritical water oxidation reactor and the heat exchanger so as to remove inorganic salt particles precipitated in the supercritical water, prevent the subsequent heat exchanger from being blocked and improve the heat transfer efficiency; the heat storage device is used for storing heat in part or all of reaction products so as to solve the problem of energy mismatching between the heat supply side and the heat utilization side; the heat storage device is combined with the heat exchanger, so that the system can still supply hot water to the outside uninterruptedly during the shutdown period of the supercritical water oxidation system; the heat flow inlet and the cold water inlet of the heat storage device are respectively provided with a flow regulating valve, and the heat storage/release rate, the heat storage/release power and the total heat storage/release quantity can be regulated by regulating the flow.
[ description of the drawings ]
FIG. 1 is a system schematic diagram of an application system of the supercritical water oxidation reaction product of the present invention.
The system comprises a back pressure valve 1, a heat storage device 2, a high-pressure hydrocyclone 7, a heat exchanger 8, a heat flow inlet 21, a heat flow outlet 22, a cold water inlet 23, a hot water outlet 24, a feeding inlet 71, a top overflow port 72, a bottom discharge port 73, a heat flow inlet I81, a heat flow outlet I82, a heat flow outlet I83, a cold water inlet I84 and a hot water outlet I.
[ detailed description ] embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses an application system of supercritical water oxidation reaction product, as shown in figure 1, including high pressure hydrocyclone 7, heat-retaining device 2 and back pressure valve 1. The high-pressure hydrocyclone 7 comprises a feeding inlet 71, a bottom discharge opening 73 and an overflow opening 72, wherein the feeding inlet 71 is used for inputting supercritical water oxidation reaction products with high temperature and high pressure, the bottom discharge opening 73 is used for discharging solid particles containing inorganic salt, and the overflow opening 72 is used for leading out high-temperature and high-pressure fluid. The heat storage device 2 comprises a hot fluid inlet 21, a hot fluid outlet 22, a cold water inlet 23 and a hot water outlet 24, wherein the hot fluid inlet 21 is communicated with the overflow port 72. A back pressure valve 1 provided at the hot outflow port 22 for releasing high pressure gas. The heat exchanger 8 comprises a hot flow inlet I81, a hot flow outlet I82, a cold water inlet I83 and a hot water outlet I84, and the hot flow inlet I81 is communicated with the overflow port 72. Wherein the hot fluid outlet 22 is communicated with the hot fluid outlet I82, the cold water inlet I83 is communicated with the cold water inlet 23, and the hot water outlet I84 is communicated with the hot water outlet 24. And a cold water booster pump is arranged at the cold water inlet I83 and the cold water input end of the cold water inlet 23.
The heat storage device can be a solid heat storage device or a phase-change heat storage device and can be of a double-spiral coil heat exchanger structure, and heat storage materials are filled between the inner shell of the heat storage device and the flow transmission fluid pipeline and the cold water pipeline. If the phase-change heat storage device is used, the phase-change temperature of the heat storage material should be 50-80 deg.C, and paraffin or Ba (OH) can be selected2·8H2O。
The utility model relates to a superThe working process of the application system of the critical water oxidation reaction product is as follows: after the organic waste liquid to be treated is subjected to supercritical water oxidation reaction, oxidizing agent is oxidized into CO2、H2O and inorganic salt, wherein the inorganic salt has low solubility in supercritical water and is easy to precipitate, and then is taken out from the bottom outlet of the reactor under the continuous flushing of high-pressure water.
The high-temperature and high-pressure supercritical water oxidation reaction product enters a high-pressure hydrocyclone 7, larger particles such as inorganic salt and the like are discharged from an outlet at the bottom of the hydrocyclone 7, and high-pressure water and gas are discharged from an outlet at the top of the hydrocyclone 7. The heat exchanger 8 and the heat storage device 2 are connected in parallel with an outlet at the top of the hydrocyclone 7, a high-temperature product discharged from the outlet at the top of the hydrocyclone 7 is divided into two parts, one part enters the heat exchanger 8 to heat cold water discharged from a cold water booster pump, the other part of heat flow flows in from a heat flow inlet 21 of the heat storage device 2 as heat transfer fluid, heat is transferred to a heat storage material in the heat storage device 2 to be stored, and heat flow after heat exchange and temperature reduction flows out through a heat flow outlet 22 of the heat storage device 2. The cold water discharged from the cold water booster pump flows into the cold water inlet 23 of the heat storage device 2, the heat storage material in the heat storage device 2 transfers heat to the cold water, and the heated cold water is discharged from the hot water outlet 24 of the heat storage device 2.
Heating the cooling water in a heat exchanger 8; a part of the high-temperature fluid enters the heat storage device 2 for heat storage. The two cooled reaction products are converged and then discharged through the backpressure valve 1.
During normal operation of the supercritical water oxidation system, valves on the pipeline connecting the cold water booster pump and the cold water inlet 23 of the heat storage device 2 are in a closed state, valves on the two branch pipelines connecting the heat exchanger 8 connected with the outlet at the top of the high-pressure hydrocyclone 7 and the hot water inlet 21 of the heat storage device 2 are in an open state, and during the period, the heat storage device 2 is in a heat storage state. When the supercritical water oxidation system stops operating, a pipeline valve connected between the heat exchanger 8 and the cold water booster pump is closed, a pipeline valve connected between the cold water booster pump and the cold water inlet 23 of the heat storage device 2 is opened, and at this stage, the heat storage device 2 is in a heat release state, so that the system is ensured to continuously provide hot water to the outside.
The heat inlet 21 and the cold inlet 23 of the heat storage device 2 are provided with flow regulating valves, and the heat storage/release rate, the heat storage/release power and the total heat storage/release quantity can be regulated by regulating the flow.
The utility model discloses an application system of supercritical water oxidation reaction product, add high pressure hydraulic cyclone between supercritical water oxidation reactor export and heat exchanger to remove the inorganic salt granule that separates out in the supercritical water, prevent the jam of follow-up heat exchanger, improve heat transfer efficiency; the heat storage device is used for storing heat in part or all of reaction products so as to solve the problem of energy mismatching between the heat supply side and the heat utilization side; the heat storage device is combined with the heat exchanger, so that the system can still supply hot water to the outside uninterruptedly during the shutdown period of the supercritical water oxidation system; the heat flow inlet and the cold water inlet of the heat storage device are respectively provided with a flow regulating valve, and the heat storage/release rate, the heat storage/release power and the total heat storage/release quantity can be regulated by regulating the flow.
Claims (3)
1. An application system of supercritical water oxidation reaction products, comprising:
a high pressure hydrocyclone (7) comprising a feed inlet (71), a bottom discharge (73) and an overflow (72), said feed inlet (71) being for input supercritical water oxidation reaction products at high temperature and pressure, said bottom discharge (73) being for discharge of solid particles comprising inorganic salts, said overflow (72) being for discharge of high temperature and pressure fluid;
the heat storage device (2) comprises a heat flow inlet (21), a heat flow outlet (22), a cold water inlet (23) and a hot water outlet (24), and the heat flow inlet (21) is communicated with the overflow port (72);
a back pressure valve (1) arranged at the hot fluid outlet (22).
2. The application system of supercritical water oxidation reaction products as claimed in claim 1, further comprising a heat exchanger (8), wherein the heat exchanger (8) comprises a hot fluid inlet I (81), a hot fluid outlet I (82), a cold water inlet I (83) and a hot water outlet I (84), and the hot fluid inlet I (81) is communicated with the overflow port (72).
3. The application system of supercritical water oxidation reaction products as claimed in claim 2, wherein the hot water outlet (22) is in communication with the hot water outlet I (82), the cold water inlet I (83) is in communication with the cold water inlet (23), and the hot water outlet I (84) is in communication with the hot water outlet (24).
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| CN201922125984.7U CN211688380U (en) | 2019-12-02 | 2019-12-02 | Application system of supercritical water oxidation reaction product |
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| CN201922125984.7U CN211688380U (en) | 2019-12-02 | 2019-12-02 | Application system of supercritical water oxidation reaction product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776055A (en) * | 2019-12-02 | 2020-02-11 | 思安新能源股份有限公司 | Application system of supercritical water oxidation reaction product |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110776055A (en) * | 2019-12-02 | 2020-02-11 | 思安新能源股份有限公司 | Application system of supercritical water oxidation reaction product |
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