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公开(公告)号：US20170266613A1
公开(公告)日：2017-09-21
申请号：US15611755
申请日：2017-06-01
Applicant: XI'AN JIAOTONG UNIVERSITY
Inventor： Shuzhong Wang , Mengmeng Ren , Xingying Tang , Jie Zhang , Yuzhen Wang , Yanhui Li
CPC classification number: B01J3/008 , B01J2219/00054 , B01J2219/00103 , Y02P20/544
Abstract: An intermediate medium heat exchanging device for a supercritical water oxidation system includes a material main loop, an intermediate medium loop and a replenishment branch. A material pump, a preheater, a spray type desuperheater, a reactor and a regenerator are connected in sequence to form the material main loop; a buffer tank, a circulating pump, the regenerator, the preheater and a water cooler form the intermediate medium loop. A back pressure valve is located above the buffer tank. The replenishment branch includes a cooling water pump, an outlet of the cooling water pump is divided into two sub-branches, one sub-branch is connected with the spray type desuperheater, and another sub-branch is connected with the buffer tank. The intermediate medium heat exchanging device is reasonable in structural design, and is able to maximally reduce the investment cost and ensure the stable operation of the system.
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公开(公告)号：US10307720B2
公开(公告)日：2019-06-04
申请号：US15611755
申请日：2017-06-01
Applicant: XI'AN JIAOTONG UNIVERSITY
Inventor： Shuzhong Wang , Mengmeng Ren , Xingying Tang , Jie Zhang , Yuzhen Wang , Yanhui Li
Abstract: An intermediate medium heat exchanging device for a supercritical water oxidation system includes a material main loop, an intermediate medium loop and a replenishment branch. A material pump, a preheater, a spray desuperheater, a reactor and a regenerator are connected in sequence to form the material main loop; a buffer tank, a circulating pump, the regenerator, the preheater and a water cooler form the intermediate medium loop. A back pressure valve is located above the buffer tank. The replenishment branch includes a cooling water pump, an outlet of the cooling water pump is divided into two sub-branches, one sub-branch is connected with the spray desuperheater, and another sub-branch is connected with the buffer tank. The intermediate medium heat exchanging device is reasonable in structural design, and is able to maximumlly reduce the investment cost and ensure the stable operation of the system.
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3.发明申请公开(公告)号：US20170297941A1
公开(公告)日：2017-10-19
申请号：US15642335
申请日：2017-07-06
Inventor： Shuzhong Wang , Yanhui Li , Jianqiao Yang , Xingying Tang , Jie Zhang , Yuzhen Wang , Tuo Zhang
CPC classification number: C02F11/086 , B01D1/0047 , B01D1/0082 , B01D1/02 , B01D3/10 , C02F1/727 , C02F2209/02 , C02F2209/03 , C02F2209/40
Abstract: An indirect heat transfer supercritical water oxidation system includes a supercritical water oxidation reactant system and an intermediate medium circuit. A control method thereof includes controlling two-process pressure and temperature increase, controlling pressure and temperature decrease and controlling normal operation. The present invention focuses on automatic control strategy of engineering practice of the indirect heat transfer supercritical water oxidation system. The system heating process adopts the idea of circulating heating, which effectively reduces the investment of the heating equipment avoids the mismatch between the working pressure of the two processes, and ensures effectiveness of the heat transfer between supercritical pressure fluid in the inner tube and the outer tube of the preheater/heat exchanger during subsequent heating process. The effective control of a reaction temperature and overpressure protection of critical equipment ensure a process effect and system safety.
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4.发明申请公开(公告)号：US20170008789A1
公开(公告)日：2017-01-12
申请号：US15112688
申请日：2014-11-10
Applicant: XI'AN JIAOTONG UNIVERSITY
Inventor： Shuzhong Wang , Lili Qian , Xingying Tang , Panpan Sun
IPC: C02F11/10
CPC classification number: C02F11/10 , C02F2301/026 , Y02W10/40
Abstract: A radial flow hydrothermal reactor for a sludge thermal hydrolysis treatment is provided, relating to a field of sludge reduction treatment. An outer cylinder and an inner cylinder are successively sleeved in a cylindrical body of the reactor. A guiding cylinder is arranged between the outer cylinder and the inner cylinder. Guiding pipes are provided on a sidewall of the guiding cylinder. An agitator is arranged in the inner cylinder, so that sludge has low viscosity and good fluidity after reaching reaction parameters in the inner cylinder. Because an inlet pipe is arranged below the inner cylinder, the sludge enters the inner cylinder from bottom and flows out from top, and the inner cylinder has a diameter not large, which guarantees heating time. Because of a small height-to-diameter ratio of the radial flow hydrothermal reactor, the sludge after heating has the good fluidity, and flows outward radially in a large space of the outer cylinder. With an increased flowing radius, a flowing velocity decreases, and a hydrothermal reaction proceeds continuously, which guarantees reaction time within limited space of the reactor. Thus, the radial flow hydrothermal reactor is able to work continuously and has a compact structure.
Abstract translation: 提供了一种用于污泥热水解处理的径向流水热反应器，涉及污泥减少处理领域。 外筒和内筒相继地套在反应器的圆柱体中。 引导筒布置在外筒和内筒之间。 引导管设置在引导筒的侧壁上。 在内筒中设置有搅拌器，使得在内筒达到反应参数后，污泥具有低粘度和良好的流动性。 由于入口管布置在内筒下方，污泥从底部进入内筒，从顶部流出，内筒直径不大，保证加热时间。 由于径向流水热反应堆的高比直径比小，加热后的污泥具有良好的流动性，并且在外筒的大空间中径向向外流动。 随着流动半径的增加，流动速度降低，水热反应持续进行，这保证了反应器有限空间内的反应时间。 因此，径向流水热反应器能够连续工作并具有紧凑的结构。
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公开(公告)号：US09328008B2
公开(公告)日：2016-05-03
申请号：US14396732
申请日：2012-12-05
Applicant: XI'AN JIAOTONG UNIVERSITY
Inventor： Shuzhong Wang , Donghai Xu , Xingying Tang , Yanmeng Gong , Jie Zhang , Yuzhen Wang
CPC classification number: C02F11/086 , C02F1/20 , C02F1/385 , C02F5/00 , C02F9/00 , C02F11/08 , C02F2001/5218 , F25J1/0002
Abstract: A supercritical water oxidation treatment system for organic wastewater with a high salinity crystallizes high-salinity wastewater by a low temperature of liquid oxygen, and decreases an inorganic salt content in the wastewater. Under supercritical water conditions, a hydrocyclone (4) separates most precipitated solid salts in the wastewater, so effectively prevents pipes and the tubular reactor (22) after the hydrocyclone (4) from plugging. Inorganic salts are able to be continuously separated from the system by the hydrocyclone (4) at the bottom of a desalination device, In addition, excess oxygen and gaseous products CO2 are recovered by a separation recovery part. The reaction time and the reaction temperature of supercritical water oxidation reaction are lowered due to the installation of a simple post-treatment unit (37). Moreover, the heat of the reactor effluent with a high temperature is recovered in the system, so operation cost of the system is reduced evidently.
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Patent Agency Ranking
公开(公告)号：US09994473B2
公开(公告)日：2018-06-12
申请号：US15112688
申请日：2014-11-10
Applicant: XI'AN JIAOTONG UNIVERSITY
Inventor： Shuzhong Wang , Lili Qian , Xingying Tang , Panpan Sun
IPC: C02F11/10
CPC classification number: C02F11/10 , C02F2301/026 , Y02W10/40
Abstract: A radial flow hydrothermal reactor for a sludge thermal hydrolysis treatment is provided. An outer and an inner cylinder are successively sleeved in a cylindrical body of the reactor. A guiding cylinder is arranged between the outer and the inner cylinder. Guiding pipes are provided on the guiding cylinder. An agitator is arranged in the inner cylinder, so that sludge has low viscosity and good fluidity after reaching reaction parameters. Because an inlet pipe is arranged below the inner cylinder, the sludge enters the inner cylinder from bottom and flows out from top, and the inner cylinder has a diameter not large, which guarantees heating time. Because of a small height-to-diameter ratio of the reactor, the sludge after heating has the good fluidity, and flows outward radially in the outer cylinder. With an increased flowing radius, a flowing velocity decreases, and a hydrothermal reaction proceeds continuously, which guarantees reaction time.
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7.发明申请Method for controlling desalination and salt discharging in supercritical water oxidation system 审中-公开在超临界水氧化系统中控制脱盐和盐析的方法公开(公告)号：US20150299015A1
公开(公告)日：2015-10-22
申请号：US14396740
申请日：2012-12-05
Applicant: XI'AN JIAOTONG UNIVERSITY
Inventor： Shuzhong Wang , Lu Zhou , Donghai Xu , Xingying Tang , Honghe Ma
CPC classification number: C02F9/00 , B01D3/06 , B01D21/267 , C02F1/00 , C02F1/06 , C02F1/385 , C02F1/72 , C02F11/086 , C02F2101/10 , C02F2103/08
Abstract: A method for controlling desalination and salt discharging in a supercritical water oxidation system includes a step of providing a system including a heating furnace (1), a hydrocyclone (2), a buffer oxidizer (3), a flash tank (4) and related control valves. The method further includes a step of controlling desalination and salt discharging: discharging salts from the hydrocyclone (2) into the buffer oxidizer (3); discharging the salts from the buffer oxidizer (3) into the flash tank (4), in an intermittent automatic operation manner The method accomplishes an efficient and continuous desalination of the organic waste supercritical water oxidation treatment system, via storing the salts by the salt storage buffer tank under the hydrocyclone (2) and the buffer oxidizer (3).
Abstract translation: 一种用于在超临界水氧化系统中控制脱盐和盐排放的方法包括提供包括加热炉（1），水力旋流器（2），缓冲氧化器（3），闪蒸罐（4）和相关 控制阀。 该方法还包括控制脱盐和盐排放的步骤：将盐从旋液分离器（2）排放到缓冲氧化器（3）中; 以间歇的自动操作方式将盐从缓冲氧化剂（3）中排出到闪蒸罐（4）中。该方法通过盐储存器中的盐储存来实现对有机废物超临界水氧化处理系统的有效和持续的淡化 缓冲罐在水力旋流器（2）和缓冲氧化器（3）下。
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公开(公告)号：US10519043B2
公开(公告)日：2019-12-31
申请号：US15611752
申请日：2017-06-01
Inventor： Shuzhong Wang , Jie Zhang , Laisheng Wang , Xingying Tang , Yanhui Li , Jianqiao Yang
Abstract: A control system for decreasing pressure of a supercritical water system and a method therefor is provided, mainly including: a resistance water storage tank, a resistance pump, a capillary negative booster, a back pressure valve, a regulating valve and related stop valves. By switching the back pressure valve branch and the capillary negative booster branch, the pressure regulation is achieved while starting the system, closing down and in normal operation. The present invention is capable of achieving precisely controlling pressure of the system on the basis of effectively preventing problems exists in the solid particle materials pressure decreasing process such as abrasion and clogging of the internal elements of the valve. In addition, the back pressure valve branch is capable of reducing the operation complexity in the starting and shutdown process of the system, and the operation reliability is improved.
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公开(公告)号：US09926216B2
公开(公告)日：2018-03-27
申请号：US14917013
申请日：2014-11-10
Inventor： Shuzhong Wang , Lili Qian , Xingying Tang , Panpan Sun
CPC classification number: C02F11/12 , C02F1/025 , C02F1/06 , C02F11/10 , C02F11/121 , C02F2301/026 , C02F2303/06 , C02F2303/10 , Y02W10/30 , Y02W10/40
Abstract: A sludge dehydrating system and a method thereof based on a thermal hydrolysis technology include: a homogeneous slurry unit, a hydrothermal unit, a flash reactor, a waste heat recovery unit, and a dehydrator; wherein a viscosity of sludge is lowered by homogenously slurrying before entering a pump, which is conducive to transportation; a sludge tank firstly crashes and then quantitatively transports for improving a homogenizing efficiency; a diluent is sludge dehydrated filtrate which is mixed with flash steam in an ejector, wherein an mixing efficiency is high; during homogenously slurrying, waste steam generated is added into a sludge diluent pipe for being absorbed; a hydrothermal unit include a variety of forms such as an intermittent form and a continuous form, in such a manner that reaction parameters, especially reaction time are effectively guaranteed; the flash steam enters the homogeneous slurry unit for heating the sludge.
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10.发明申请公开(公告)号：US20170269615A1
公开(公告)日：2017-09-21
申请号：US15611752
申请日：2017-06-01
Inventor： Shuzhong Wang , Jie Zhang , Laisheng Wang , Xingying Tang , Yanhui Li , Jianqiao Yang
CPC classification number: C02F1/008 , C02F2201/005 , C02F2209/03
Abstract: A control system for decreasing pressure of a supercritical water system and a method therefor is provided, mainly including: a resistance water storage tank, a resistance pump, a capillary negative booster, a back pressure valve, a regulating valve and related stop valves. By switching the back pressure valve branch and the capillary negative booster branch, the pressure regulation is achieved while starting the system, closing down and in normal operation. The present invention is capable of achieving precisely controlling pressure of the system on the basis of effectively preventing problems exists in the solid particle materials pressure decreasing process such as abrasion and clogging of the internal elements of the valve. In addition, the back pressure valve branch is capable of reducing the operation complexity in the starting and shutdown process of the system, and the operation reliability is improved.
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