CN106830603A - Step heat exchange pyrohydrolysis reactor - Google Patents
Step heat exchange pyrohydrolysis reactor Download PDFInfo
- Publication number
- CN106830603A CN106830603A CN201710098847.1A CN201710098847A CN106830603A CN 106830603 A CN106830603 A CN 106830603A CN 201710098847 A CN201710098847 A CN 201710098847A CN 106830603 A CN106830603 A CN 106830603A
- Authority
- CN
- China
- Prior art keywords
- valve
- hot
- reactor
- furnace
- tee
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 14
- 238000009283 thermal hydrolysis Methods 0.000 abstract description 11
- 239000010802 sludge Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
本发明公开了一种梯级换热热水解反应器，其特征在于，由加热炉、两个以上反应器、换热器和循环泵组成；所述换热器位于所述反应器内；所述加热炉的热媒进出口处安装有炉左阀与炉右阀，所述炉左阀与炉左三连接，所述炉右阀与炉右三通连接，所述炉左三通和炉右三通之间，连接有炉隔阀；所述反应器的热媒进出口安装有热左阀、热右阀，所述热左阀与热左三通连接，所述热右阀与热右三通连接，所述热左三通和热右三通之间，连接有热隔阀；所述炉右三通与反应器的热左三通连接，该反应器的热右三通与下一个反应器的热左三通连接，如此重复，直至将全部反应器连接；最末一个反应器的热右三通与所述循环泵入口连接，所述循环泵出口与所述炉左三通连接。
The invention discloses a cascade heat exchange thermal hydrolysis reactor, which is characterized in that it is composed of a heating furnace, more than two reactors, a heat exchanger and a circulation pump; the heat exchanger is located in the reactor; the A furnace left valve and a furnace right valve are installed at the heat medium inlet and outlet of the heating furnace, the furnace left valve is connected with the furnace left three, the furnace right valve is connected with the furnace right three, and the furnace left three is connected with the furnace A furnace isolation valve is connected between the right tees; the heat medium inlet and outlet of the reactor are equipped with a hot left valve and a hot right valve, the hot left valve is connected with the hot left tee, and the hot right valve is connected with the hot The right tee is connected, and a thermal isolation valve is connected between the hot left tee and the hot right tee; the furnace right tee is connected with the hot left tee of the reactor, and the hot right tee of the reactor is connected with the hot right tee. The heat left tee of the next reactor is connected, and so on until all reactors are connected; the heat right tee of the last reactor is connected to the inlet of the circulation pump, and the outlet of the circulation pump is connected to the left third of the furnace. through the connection.
Description
技术领域technical field
本发明涉及一种热水解设备，尤其涉及一种污泥热水解设备。The invention relates to thermal hydrolysis equipment, in particular to sludge thermal hydrolysis equipment.
背景技术Background technique
研究表明，污泥热水解后，脱水性能提高，水溶性COD提高，有利于进行深度脱水或厌氧消化等后续处理。但将污泥加热到热水解温度(约200℃)，需要的能量极大，因此，制约着该技术的应用。Studies have shown that after thermal hydrolysis of sludge, the dehydration performance is improved, and the water-soluble COD is increased, which is conducive to subsequent treatments such as deep dehydration or anaerobic digestion. However, heating the sludge to the thermal hydrolysis temperature (about 200°C) requires a lot of energy, which restricts the application of this technology.
污泥热水解并不是一个吸热反应，即反应本身不消耗热量，热量消耗主要是反应后，冷却的热量没能有效回收。目前，通过闪蒸等手段，可以回收部分能量；但是，闪蒸由于存在相变过程，其设备相对复杂。本专利拟以无相变、梯级换热的方式，回收热量。Sludge thermal hydrolysis is not an endothermic reaction, that is, the reaction itself does not consume heat, and the heat consumption is mainly due to the inability to effectively recover the cooling heat after the reaction. At present, part of the energy can be recovered through means such as flash evaporation; however, due to the phase change process of flash evaporation, its equipment is relatively complicated. This patent intends to recover heat by means of no phase change and cascade heat exchange.
发明内容Contents of the invention
本发明所要解决的技术问题是提供一种梯级换热热水解反应器，该反应器无水的相变、能量利用率高。其特征在于，由加热炉、两个以上反应器、换热器和循环泵组成；所述换热器位于所述反应器内；所述加热炉的热媒进出口处安装有炉左阀与炉右阀，所述炉左阀与炉左三连接，所述炉右阀与炉右三通连接，所述炉左三通和炉右三通之间，连接有炉隔阀；所述反应器的热媒进出口安装有热左阀、热右阀，所述热左阀与热左三通连接，所述热右阀与热右三通连接，所述热左三通和热右三通之间，连接有热隔阀；所述炉右三通与反应器的热左三通连接，该反应器的热右三通与下一个反应器的热左三通连接，如此重复，直至将全部反应器连接；最末一个反应器的热右三通与所述循环泵入口连接，所述循环泵出口与所述炉左三通连接。The technical problem to be solved by the present invention is to provide a cascaded heat exchange thermal hydrolysis reactor, which has no phase change of water and high energy utilization rate. It is characterized in that it is composed of a heating furnace, more than two reactors, a heat exchanger and a circulating pump; the heat exchanger is located in the reactor; the heating medium inlet and outlet of the heating furnace are equipped with a furnace left valve and a Furnace right valve, the furnace left valve is connected with the furnace left three, the furnace right valve is connected with the furnace right three, between the furnace left three and the furnace right three, a furnace isolation valve is connected; the reaction The heat medium inlet and outlet of the device are equipped with a heat left valve and a heat right valve, the heat left valve is connected with the heat left tee, the heat right valve is connected with the heat right tee, the heat left tee and the heat right three Between the passages, a thermal isolation valve is connected; the right three-way of the furnace is connected with the hot left three-way of the reactor, and the hot right three-way of the reactor is connected with the hot left three-way of the next reactor, and so on, until Connect all the reactors; the hot right tee of the last reactor is connected to the inlet of the circulation pump, and the outlet of the circulation pump is connected to the left tee of the furnace.
与现有技术相比，本发明的梯级换热热水解反应器的有益效果是：实现无相变梯级换热，能量利用率高。Compared with the prior art, the beneficial effect of the cascaded heat exchange thermal hydrolysis reactor of the present invention is that: no phase change cascade heat exchange is realized, and the energy utilization rate is high.
附图说明Description of drawings
图1是本发明实施例的梯级换热热水解反应器结构示意图。Fig. 1 is a schematic structural diagram of a cascaded heat exchange thermal hydrolysis reactor according to an embodiment of the present invention.
具体实施方式detailed description
下面结合附图详细说明本发明的实施例。Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
实施例：Example:
如图1所示的梯级换热热水解反应器，由加热炉1、两个以上反应器2、换热器3和循环泵4组成；所述换热器3位于所述反应器2内；所述加热炉1的热媒进出口处安装有炉左阀1-1与炉右阀1-2，所述炉左阀1-1与炉左三通1-3连接，所述炉右阀1-2与炉右三通1-4连接，所述炉左三通1-3和炉右三通1-4之间，连接有炉隔阀1-5；所述反应器2的热媒进出口安装有热左阀2-1、热右阀2-2，所述热左阀2-1与热左三通2-3连接，所述热右阀2-2与热右三通2-4连接，所述热左三通2-1和热右三通2-2之间，连接有热隔阀2-5；所述炉右三通1-4与反应器的热左三通2-3连接，该反应器的热右三通2-4与下一个反应器的热左三通2-3连接，如此重复，直至将全部反应器2连接；最末一个反应器2的热右三通2-4与所述循环泵4入口连接，所述循环泵4出口与所述炉左三通1-3连接。The cascade heat exchange thermal hydrolysis reactor as shown in Figure 1 is composed of a heating furnace 1, more than two reactors 2, a heat exchanger 3 and a circulation pump 4; the heat exchanger 3 is located in the reactor 2 ; The heat medium inlet and outlet of the heating furnace 1 are equipped with a furnace left valve 1-1 and a furnace right valve 1-2, and the furnace left valve 1-1 is connected with the furnace left tee 1-3, and the furnace right The valve 1-2 is connected with the right tee 1-4 of the furnace, and the furnace isolation valve 1-5 is connected between the left tee 1-3 of the furnace and the right tee 1-4 of the furnace; The media inlet and outlet are equipped with a hot left valve 2-1 and a hot right valve 2-2, the hot left valve 2-1 is connected with the hot left tee 2-3, and the hot right valve 2-2 is connected with the hot right tee 2-4 connection, between the hot left tee 2-1 and the hot right tee 2-2, a thermal isolation valve 2-5 is connected; the furnace right tee 1-4 and the reactor's hot left three Through 2-3 connection, the hot right tee 2-4 of this reactor is connected with the hot left tee 2-3 of the next reactor, and so on until all reactors 2 are connected; the last reactor 2 The hot right tee 2-4 is connected to the inlet of the circulation pump 4, and the outlet of the circulation pump 4 is connected to the left tee 1-3 of the furnace.
下面对本实施例的工作原理简要介绍如下：The working principle of this embodiment is briefly introduced as follows:
本实施例安排了四个反应器2，为叙述方便，将这四个反应器标为A、B、C、D。启动时，将四个反应器中分别装入温度为Ta，Tb，Tc，Td四种温度的污泥(Ta＞Tb＞Tc＞Td)。按以下步骤进行操作：Four reactors 2 are arranged in this embodiment, and these four reactors are marked as A, B, C, and D for the convenience of description. At start-up, the four reactors are filled with sludge at four temperatures T a , T b , T c , and T d (T a > T b > T c > T d ). Follow these steps:
步骤一、水解：反应器B、C、D的热左阀2-1、热右阀2-2关闭；反应器A的热隔阀2-5关闭，热左阀2-1、热右阀2-2开启；加热炉1的炉隔阀1-5关闭，炉左阀1-1、炉右阀1-2开启；开启循环泵4，对反应器A内污泥进行加热并保温进行热水解反应，至热水解完成。关闭循环泵4。Step 1, hydrolysis: the heat left valve 2-1 and heat right valve 2-2 of reactors B, C, D are closed; the heat isolation valve 2-5 of reactor A is closed, heat left valve 2-1, heat right valve 2-2 is opened; the furnace isolation valve 1-5 of the heating furnace 1 is closed, the furnace left valve 1-1 and the furnace right valve 1-2 are opened; the circulation pump 4 is opened to heat and keep warm the sludge in the reactor A. Hydrolysis reaction, until the thermal hydrolysis is complete. Turn off circulation pump 4.
步骤二、换热：炉左阀1-1和炉右阀1-2关闭，炉隔阀1-5开启；反应器A、C、D状态同步骤一，反应器B的热隔阀1-5关闭，热左阀2-1、热右阀2-2开启；开启循环泵4，进行AB换热。当反应器B至一定温度后，关闭循环泵4。Step 2. Heat exchange: Furnace left valve 1-1 and furnace right valve 1-2 are closed, furnace isolation valve 1-5 is opened; reactors A, C, and D are in the same state as step 1, and the thermal isolation valve 1-2 of reactor B is 5 is closed, the hot left valve 2-1 and the hot right valve 2-2 are opened; the circulating pump 4 is turned on for AB heat exchange. When the reactor B reaches a certain temperature, the circulation pump 4 is turned off.
关闭反应器B的热左阀2-1和热右阀2-2，开启热隔阀2-5。开启反应器C的热左阀2-1和热右阀2-2，关闭热隔阀2-5，开启循环泵4，进行AC换热。当反应器C至一定温度后，关闭循环泵4。Close the thermal left valve 2-1 and the thermal right valve 2-2 of reactor B, and open the thermal isolation valve 2-5. Open the heat left valve 2-1 and heat right valve 2-2 of reactor C, close the heat isolation valve 2-5, open the circulation pump 4, and perform AC heat exchange. When the reactor C reaches a certain temperature, the circulation pump 4 is turned off.
关闭反应器C的热左阀2-1和热右阀2-2，开启热隔阀2-5。开启反应器D的热左阀2-1和热右阀2-2，关闭热隔阀2-5，开启循环泵4，进行AD换热。当反应器D至一定温度后，关闭循环泵4。Close the thermal left valve 2-1 and the thermal right valve 2-2 of reactor C, and open the thermal isolation valve 2-5. Open the heat left valve 2-1 and heat right valve 2-2 of reactor D, close the heat isolation valve 2-5, open the circulation pump 4, and carry out AD heat exchange. When the reactor D reaches a certain temperature, the circulation pump 4 is turned off.
由于B、C、D的温度逐级降低，因此，反应器A可被冷却到很低的温度(远低于100℃)，由于反应器一直处于封闭状态，因此，没有相变发生。Since the temperatures of B, C, and D decrease step by step, reactor A can be cooled to a very low temperature (far lower than 100°C), and since the reactor is always in a closed state, no phase change occurs.
步骤三、出料、进料：打开反应器A，出料，然后进料。Step 3, discharging and feeding: open reactor A, discharge and then feed.
步骤四、重复：步骤三后，反应器的温度为：Tb＞Tc＞Td Ta＞，此时，按步骤一、二、三的操作方式，对反应器B进行热水解并进行BC、BD、BA的热交换，反应器B进、出料后，再对反应器C进行操作，如此循环，形成连续生产。Step 4, repeat: after step 3, the temperature of the reactor is: T b > T c > T d T a >, at this time, according to the operation mode of steps 1, 2, and 3, the reactor B is thermally hydrolyzed and Carry out heat exchange among BC, BD, and BA. After reactor B enters and discharges materials, reactor C is operated again. This cycle forms continuous production.
以上实施例仅为本发明的示例性实施例，不用于限制本发明，本发明的保护范围由权利要求书限定。本领域技术人员可以在本发明的实质和保护范围内，对本发明做出各种修改或等同替换，这种修改或等同替换也应视为落在本发明的保护范围内。The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the spirit and protection scope of the present invention, and such modifications or equivalent replacements should also be deemed to fall within the protection scope of the present invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098847.1A CN106830603B (en) | 2017-02-23 | 2017-02-23 | Step heat exchange pyrohydrolysis reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098847.1A CN106830603B (en) | 2017-02-23 | 2017-02-23 | Step heat exchange pyrohydrolysis reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106830603A true CN106830603A (en) | 2017-06-13 |
| CN106830603B CN106830603B (en) | 2020-10-27 |
Family
ID=59133259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710098847.1A Active CN106830603B (en) | 2017-02-23 | 2017-02-23 | Step heat exchange pyrohydrolysis reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106830603B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112473563A (en) * | 2021-01-06 | 2021-03-12 | 轻工业环境保护研究所 | Step direct heat exchange hydrothermal reaction device |
| CN112759229A (en) * | 2021-01-18 | 2021-05-07 | 轻工业环境保护研究所 | Cascade heat exchange pyrohydrolysis reaction device for material mixing and operation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162636A (en) * | 2011-04-11 | 2011-08-24 | 中国科学院电工研究所 | High-temperature heat storage and evaporation integrated device |
| CN204298217U (en) * | 2014-10-16 | 2015-04-29 | 轻工业环境保护研究所 | A kind of sludge hot hydrolysis reactor |
-
2017
- 2017-02-23 CN CN201710098847.1A patent/CN106830603B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162636A (en) * | 2011-04-11 | 2011-08-24 | 中国科学院电工研究所 | High-temperature heat storage and evaporation integrated device |
| CN204298217U (en) * | 2014-10-16 | 2015-04-29 | 轻工业环境保护研究所 | A kind of sludge hot hydrolysis reactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112473563A (en) * | 2021-01-06 | 2021-03-12 | 轻工业环境保护研究所 | Step direct heat exchange hydrothermal reaction device |
| CN112759229A (en) * | 2021-01-18 | 2021-05-07 | 轻工业环境保护研究所 | Cascade heat exchange pyrohydrolysis reaction device for material mixing and operation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106830603B (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104313297A (en) | Waste heat recycling method for cold-rolled strip annealing furnace | |
| CN101845308B (en) | A coke quenching device with by-product synthesis gas and water vapor and its process | |
| CN102538479A (en) | Device and method for cooling circulating cooling water | |
| CN106830603A (en) | Step heat exchange pyrohydrolysis reactor | |
| CN103111248B (en) | The device and method that conduction oil reactor heating chilling temperature controls | |
| CN202613826U (en) | Recycling system of waste heat of waste hot water | |
| CN206027671U (en) | Heating and thermal cycling device in softener production process | |
| CN108726520B (en) | Waste heat recovery system of reducing furnace | |
| CN204460760U (en) | Heat reclaim unit in sulfonating reaction | |
| CN206008716U (en) | A kind of dicarboxylic acids production heat-exchanger rig | |
| CN205606902U (en) | Boiler steam waste heat utilizes device in starch maize production | |
| CN202747328U (en) | Hot waste water afterheat utilizing system | |
| CN205603486U (en) | Vinylidene fluoride schizolysis waste heat recovery utilizes system | |
| CN207095024U (en) | A kind of heating system of conduction oil | |
| CN103836899B (en) | Waste heat utilization technology of cluster intermittent refractory brick drying kiln | |
| CN202709710U (en) | Device for improving working conditions in heat recovery of rotary kiln drum | |
| CN206064382U (en) | Reactor boiler heating system | |
| CN204875183U (en) | A energy saving and emission reduction heat exchange device for cloth dyeing machine | |
| CN205550243U (en) | A heat exchange system for alkoxylation unit | |
| CN205156097U (en) | Novel recirculated cooling water water supply system | |
| CN205316925U (en) | Steam heat transfer device | |
| CN202157082U (en) | System for recovering waste heat from slag washing water of blast furnace | |
| CN209944466U (en) | Single-well circulation geothermal heating system | |
| CN102911679A (en) | Coke oven gas primary cooler waste heat recycling system | |
| CN201906603U (en) | Jacket type neutralization barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |