WO2023071261A1 - Experimental device and method for testing features of urea direct-injection pyrolysis spray gun - Google Patents
Experimental device and method for testing features of urea direct-injection pyrolysis spray gun Download PDFInfo
- Publication number
- WO2023071261A1 WO2023071261A1 PCT/CN2022/102024 CN2022102024W WO2023071261A1 WO 2023071261 A1 WO2023071261 A1 WO 2023071261A1 CN 2022102024 W CN2022102024 W CN 2022102024W WO 2023071261 A1 WO2023071261 A1 WO 2023071261A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spray gun
- urea direct
- pyrolysis spray
- injection pyrolysis
- manual valve
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000004202 carbamide Substances 0.000 title claims abstract description 88
- 239000007921 spray Substances 0.000 title claims abstract description 86
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 83
- 238000002347 injection Methods 0.000 title claims abstract description 79
- 239000007924 injection Substances 0.000 title claims abstract description 79
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 54
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000889 atomisation Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 238000009413 insulation Methods 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 8
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 239000003546 flue gas Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Definitions
- the present application relates to a test device and method, in particular to an experimental device and method for testing the characteristics of a urea direct-injection pyrolysis spray gun.
- Gas-steam combined cycle power generation technology has been widely used in my country for its clean and efficient features. In recent years, with the improvement of national environmental protection standards, many regions have put forward more stringent requirements for the NOx emissions of gas turbines. -2020)" requires that the NOx emission concentration of new gas-fired generator sets be controlled below 15mg/ m3 , the NOx emission concentration of E-class gas-fired generator sets be controlled below 25mg/ m3 before 2020, and the NOx emission concentration of F-class gas-fired generator sets be controlled at Below 15mg/m 3 . Jiangsu, Beijing and other provinces and cities also put forward higher requirements on the NOx emission concentration of gas-steam combined cycle units.
- SCR denitrification technology it is necessary to use SCR denitrification technology to make NOx emission meet the standard.
- the commonly used reducing agents in SCR denitrification technology are liquid ammonia, ammonia water and urea, among which urea has attracted wide attention due to its high safety, easy transportation and storage.
- urea direct injection pyrolysis technology In gas-steam combined cycle units, urea direct injection pyrolysis technology has the characteristics of simple system, low energy consumption, and simple operation and maintenance, which has attracted the attention of scholars.
- the urea direct injection pyrolysis technology of the gas-steam combined cycle unit is to arrange the urea direct injection pyrolysis spray gun in the gas turbine exit transition flue, and use the heat of high-temperature flue gas to pyrolyze the atomized urea droplets.
- the urea direct injection pyrolysis spray gun In order to mix the urea pyrolysis product and the NOx in the flue gas evenly, it is usually necessary to extend the urea direct injection pyrolysis spray gun into the flue.
- the structure and characteristic parameters of the spray gun are particularly important for the successful application of urea direct injection pyrolysis technology, but the cost of performing the characteristic test of the spray gun on the actual unit is relatively high.
- Experimental research on the structure and characteristic parameters of the spray gun is carried out under the exhaust gas condition of the cycle unit.
- the purpose of this application is to overcome the above-mentioned shortcomings of the prior art, and provide an experimental device and method for testing the characteristics of a urea direct-injection pyrolysis spray gun, which can simulate and realize the test of the characteristics of a urea direct-flow pyrolysis spray gun.
- the urea direct injection pyrolysis spray gun characteristic test experimental device described in the application comprises a double-fluid urea direct injection pyrolysis spray gun, a tubular heater, a blower, a heat gun, a water tank, a gear pump, an air compressor, a filter Pressure reducer, first manual valve, second manual valve and third manual valve;
- the middle part of the dual-fluid urea direct injection pyrolysis spray gun is installed inside the tubular heater;
- the outlet of the blower communicates with the inlet of the heat gun through the first manual valve, and the outlet of the heat gun communicates with the hot air inlet of the tubular heater;
- the outlet of the water tank is connected with the liquid pipeline inlet of the dual-fluid urea direct injection pyrolysis spray gun through the gear pump;
- the outlet of the air compressor is divided into two paths after the filter pressure reducer, one of which is connected to the atomization air interface of the dual-fluid urea direct injection pyrolysis spray gun through the second manual valve, and the other path is connected to the dual-fluid urea direct injection pyrolysis spray gun through the third manual valve.
- the cooling air port of the fluid urea direct injection pyrolysis spray gun is connected.
- the outlet of the blower communicates with the inlet of the heat gun through the first manual valve and the first float flowmeter, and the outlet of the heat gun communicates with the hot air inlet of the tubular heater.
- the outlet of the water tank passes through the gear pump, the first pressure gauge and the liquid pipeline inlet of the dual-fluid urea direct injection pyrolysis spray gun.
- the outlet of the air compressor is divided into two paths after being filtered and reduced, one of which is connected to the atomizing air interface of the dual-fluid urea direct injection pyrolysis spray gun through the second manual valve, the second float flowmeter and the second pressure gauge
- the other path is connected to the cooling air interface of the dual-fluid urea direct injection pyrolysis spray gun through the third manual valve and the third float flowmeter.
- the tubular heater includes a round steel pipe and a connecting pipe, wherein the end of the connecting pipe communicates with the side of the tail of the round steel pipe, the tail of the round steel pipe is closed, the heat gun is inserted into the connecting pipe, and the outer wall of the round steel pipe is wound There is a high-temperature electric heating wire, and the outer wall of the round steel pipe is wrapped with an insulating cotton layer, and the middle part of the dual-fluid urea direct-injection pyrolysis spray gun is socketed in the round steel pipe.
- the heating power of the heat gun is adjustable.
- a steel plate layer is arranged on the outer side of the thermal insulation cotton layer.
- the middle part of the dual-fluid urea direct-injection pyrolysis spray gun is installed inside the tubular heater through a flange.
- the air is sent to the heat gun by the blower to be heated and then sent to the tube heater, and the high temperature flue gas is simulated by the tube heater environment, and the temperature of the flue gas can be adjusted.
- the water is adjusted to the required flow and pressure through the gear pump, and then sent to the dual-fluid urea direct injection pyrolysis spray gun, and the air is adjusted to the required flow and pressure through the air compressor, filter pressure reducer and manual valve.
- the atomizing air and cooling air are sent into the dual-fluid urea direct injection pyrolysis spray gun to test the thermal insulation performance of the dual-fluid urea direct injection pyrolysis spray gun in a simulated high-temperature flue gas environment, and then can be adjusted to meet the needs of the project , with the characteristics of simple system, adjustable parameters and high reliability.
- Fig. 1 is a structural schematic diagram of the present application.
- 1 is a dual-fluid urea direct injection pyrolysis spray gun
- 2 is a tubular heater
- 3 is a blower
- 4 is a heat gun
- 51 is a first manual valve
- 52 is a second manual valve
- 53 is a third manual valve
- 61 is the first float flowmeter
- 62 is the second float flowmeter
- 63 is the third float flowmeter
- 7 is the filter pressure reducer
- 8 is the air compressor
- 9 is the water tank
- 10 is the gear pump
- 111 is the first A pressure gauge
- 112 is the second pressure gauge.
- the urea direct-injection pyrolysis spray gun characteristic testing experimental device described in the present application comprises two-fluid urea direct-injection pyrolysis spray gun 1, tubular heater 2, air blower 3, heat gun 4, the first manual valve 51, the first Second manual valve 52, third manual valve 53, first float flowmeter 61, second float flowmeter 62, third float flowmeter 63, filter pressure reducer 7, air compressor 8, water tank 9, gear pump 10 , the first pressure gauge 111 and the second pressure gauge 112;
- the middle part of the dual-fluid urea direct-injection pyrolysis spray gun 1 is installed inside the tubular heater 2 through a flange;
- the outlet of the blower 3 is communicated with the inlet of the heat gun 4 through the first manual valve 51 and the first float flowmeter 61, and the outlet of the heat gun 4 is communicated with the hot blast inlet of the tubular heater 2;
- the outlet of the water tank 9 passes through the gear pump 10, the first pressure gauge 111 and the liquid pipeline inlet of the dual-fluid urea direct-injection pyrolysis spray gun 1, and the liquid pressure entering the dual-fluid urea direct-injection pyrolysis spray gun 1 is measured by the first pressure gauge 111;
- the outlet of the air compressor 8 is divided into two paths after the filter pressure reducer 7, one of which passes through the second manual valve 52, the second float flowmeter 62 and the second pressure gauge 112 and the dual-fluid urea direct injection pyrolysis spray gun 1
- the atomizing air interface of the two-fluid urea direct-injection pyrolysis spray gun 1 is connected through the third manual valve 53 and the third float flowmeter 63 to the cooling air interface of the two-fluid urea direct-injection pyrolysis spray gun 1. of cooling air.
- the tubular heater 2 includes a round steel pipe and a connecting pipe, wherein the end of the connecting pipe communicates with the side of the tail of the round steel pipe, the tail of the round steel pipe is closed, the heat gun 4 is inserted into the connecting pipe, and the outer wall of the round steel pipe is High-temperature electric heating wire is wound on the top, and the outer wall of the round steel pipe is wrapped with a thermal insulation cotton layer.
- the outer side of the thermal insulation cotton layer is provided with a steel plate layer.
- the heating power of the hot air gun 4 is adjustable. The thermal insulation effect keeps the internal temperature of the round steel pipe within a preset range, and the middle part of the two-fluid urea direct injection pyrolysis spray gun 1 is socketed in the round steel pipe.
- the main function of this application is to provide an environment that simulates actual high-temperature flue gas, so as to conduct experiments on the thermal insulation performance of the dual-fluid urea direct-injection pyrolysis spray gun 1 .
- the pressure of the atomizing air was adjusted by adjusting the filter pressure reducer 7, and the cooling air flow rate entering the dual-fluid urea direct injection pyrolysis spray gun 1 was adjusted by adjusting the third manual valve 53.
- the air flow entering into the heat gun 4 is adjusted to a preset value by the first manual valve 51, and then the power switch of the heat gun 4 is turned on to set the temperature of the heat gun 4. At this time, the air enters after being heated by the heat gun 4. into the round steel tube.
- the principle of this application is: the air is sent to the heat gun 4 through the blower 3 to be heated and then sent to the tubular heater 2.
- the round steel pipe in the tubular heater 2 is provided with an electric heating wire and a thermal insulation cotton layer.
- the heating function of the electric heating wire and the insulation of the insulation cotton layer simulate a high-temperature flue gas environment, and the flow and temperature of the high-temperature flue gas can be adjusted.
- the water is adjusted to the required flow rate and pressure by the gear pump 10
- it is sent into the dual-fluid urea direct-injection pyrolysis spray gun 1, the air compressor 8, the filter pressure reducer 7, the second manual valve 52 and the second manual valve 52.
- Three manual valves 53 send atomizing air and cooling air into the dual-fluid urea direct injection pyrolysis spray gun 1, wherein the flow of cooling air entering the dual-fluid urea direct injection pyrolysis spray gun 1 is independently regulated, and the flow of cooling air entering the dual-fluid urea direct injection pyrolysis spray gun
- the pressure and flow rate of the atomizing air in the pyrolysis spray gun 1 can also be independently adjusted.
- this application can simulate the high-temperature flue gas environment, and can adjust the flow rate and temperature of the high-temperature flue gas, and at the same time can adjust the cooling air flow rate, atomizing air pressure and water flow rate entering the dual-fluid urea direct injection pyrolysis spray gun 1.
- the application system is simple, with adjustable parameters and high reliability, which can provide technical support for project implementation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
An experimental device and method for testing features of a urea direct-injection pyrolysis spray gun. The middle part of a dual-fluid urea direct-injection pyrolysis spray gun (1) is mounted inside a tubular heater (2); an outlet of a blower (3) is in communication with an inlet of a hot air gun (4) by means of a first manual valve (51), and an outlet of the hot air gun (4) is in communication with a hot air inlet of the tubular heater (2); an outlet of a water tank (9) is in communication with a liquid pipeline inlet of the dual-fluid urea direct-injection pyrolysis spray gun (1) by means of a gear pump (10); and an outlet of an air compressor (8) is divided into two paths after passing through a filtering pressure reducer (7), wherein one path is in communication with an atomization air interface of the dual-fluid urea direct-injection pyrolysis spray gun (1) by means of a second manual valve (52), and the other path is in communication with a cooling air interface of the dual-fluid urea direct-injection pyrolysis spray gun (1) by means of a third manual valve (53). The device and the method can simulate the testing of features of the urea direct-injection pyrolysis spray gun.
Description
相关申请的交叉引用Cross References to Related Applications
本申请要求在2021年10月26日提交中国专利局、申请号为202111250932.8、发明名称为“一种尿素直喷热解喷枪特性测试实验装置及方法”的中国专利申请的优先权，其全部内容通过引用的方式并入本文中。This application claims the priority of the Chinese patent application submitted to the China Patent Office on October 26, 2021, with the application number 202111250932.8, and the title of the invention is "An experimental device and method for testing the characteristics of a urea direct injection pyrolysis spray gun", the entire content of which Incorporated herein by reference.
本申请涉及一种试验装置及方法，具体涉及一种尿素直喷热解喷枪特性测试实验装置及方法。The present application relates to a test device and method, in particular to an experimental device and method for testing the characteristics of a urea direct-injection pyrolysis spray gun.
燃气蒸汽联合循环发电技术以其清洁高效的特点在我国得到了广泛的应用。近年，随着国家环保标准的提高，很多地区对于燃机的NOx排放提出了更加严格的要求，例如深圳市人民政府印发的深府[2017]1号文件“深圳市大气环境质量提升计划(2017-2020年)”要求新建燃气发电机组NOx排放浓度控制在15mg/m
3以下，2020年前E级燃气发电机组NOx排放浓度控制在25mg/m
3以下，F级燃气发电机组NOx排放浓度控制在15mg/m
3以下。在江苏、北京等省市也对燃气蒸汽联合循环机组的NOx排放浓度提出了更高的要求。在这种情况下，需要采用SCR脱硝技术使NOx达标排放。SCR脱硝技术常用的还原剂为液氨、氨水和尿素，其中尿素以其安全性高、易运输和储存得到了广泛的关注。在燃气蒸汽联合循环机组中，尿素直喷热解技术具有系统简单、能耗低、运行维护简单的特点受到了学者的关注。
Gas-steam combined cycle power generation technology has been widely used in my country for its clean and efficient features. In recent years, with the improvement of national environmental protection standards, many regions have put forward more stringent requirements for the NOx emissions of gas turbines. -2020)" requires that the NOx emission concentration of new gas-fired generator sets be controlled below 15mg/ m3 , the NOx emission concentration of E-class gas-fired generator sets be controlled below 25mg/ m3 before 2020, and the NOx emission concentration of F-class gas-fired generator sets be controlled at Below 15mg/m 3 . Jiangsu, Beijing and other provinces and cities also put forward higher requirements on the NOx emission concentration of gas-steam combined cycle units. In this case, it is necessary to use SCR denitrification technology to make NOx emission meet the standard. The commonly used reducing agents in SCR denitrification technology are liquid ammonia, ammonia water and urea, among which urea has attracted wide attention due to its high safety, easy transportation and storage. In gas-steam combined cycle units, urea direct injection pyrolysis technology has the characteristics of simple system, low energy consumption, and simple operation and maintenance, which has attracted the attention of scholars.
燃气蒸汽联合循环机组尿素直喷热解技术是将尿素直喷热解喷枪布置在燃气轮机出口过渡烟道中，利用高温烟气的热量将雾化后的尿素液滴热解。为了使尿素热解产物与烟气中NOx混合均匀，通常需要将尿素直喷热解喷枪伸入烟道内部，对于E级以上机组，燃气轮机出口烟道的直径通常较大，喷枪伸入烟道的最长距离达到了2-3米；另一方面，由于燃机初始NOx数值 较低，单支喷枪的尿素溶液流量较小，导致喷枪内部尿素溶液流速通常低于0.1m/s，所以喷枪在高温烟气环境中面临尿素溶液在内部流动过程中被高温蒸干从而堵塞喷枪的风险。The urea direct injection pyrolysis technology of the gas-steam combined cycle unit is to arrange the urea direct injection pyrolysis spray gun in the gas turbine exit transition flue, and use the heat of high-temperature flue gas to pyrolyze the atomized urea droplets. In order to mix the urea pyrolysis product and the NOx in the flue gas evenly, it is usually necessary to extend the urea direct injection pyrolysis spray gun into the flue. The longest distance reached 2-3 meters; on the other hand, due to the low initial NOx value of the gas turbine, the urea solution flow rate of a single spray gun is small, resulting in the flow rate of the urea solution inside the spray gun is usually lower than 0.1m/s, so the spray gun In the high-temperature flue gas environment, there is a risk that the urea solution will be evaporated to dryness by high temperature during the internal flow process, thereby blocking the spray gun.
在这种情况下，喷枪结构和特征参数对尿素直喷热解技术成功应用尤其重要，而在实际机组上做喷枪的特性试验成本较高，因此，需要有一套实验装置，能够模拟燃气蒸汽联合循环机组燃机排气的工况，对喷枪的结构和特征参数进行实验研究。In this case, the structure and characteristic parameters of the spray gun are particularly important for the successful application of urea direct injection pyrolysis technology, but the cost of performing the characteristic test of the spray gun on the actual unit is relatively high. Experimental research on the structure and characteristic parameters of the spray gun is carried out under the exhaust gas condition of the cycle unit.
发明内容Contents of the invention
本申请的目的在于克服上述现有技术的缺点，提供了一种尿素直喷热解喷枪特性测试实验装置及方法，该装置及方法能够模拟实现尿素直流热解喷枪特性的测试。The purpose of this application is to overcome the above-mentioned shortcomings of the prior art, and provide an experimental device and method for testing the characteristics of a urea direct-injection pyrolysis spray gun, which can simulate and realize the test of the characteristics of a urea direct-flow pyrolysis spray gun.
为达到上述目的，本申请所述的尿素直喷热解喷枪特性测试实验装置包括双流体尿素直喷热解喷枪、管式加热器、鼓风机、热风枪、水箱、齿轮泵、空气压缩机、过滤减压器、第一手动阀门、第二手动阀门及第三手动阀门；In order to achieve the above object, the urea direct injection pyrolysis spray gun characteristic test experimental device described in the application comprises a double-fluid urea direct injection pyrolysis spray gun, a tubular heater, a blower, a heat gun, a water tank, a gear pump, an air compressor, a filter Pressure reducer, first manual valve, second manual valve and third manual valve;
双流体尿素直喷热解喷枪的中部安装于管式加热器内部；The middle part of the dual-fluid urea direct injection pyrolysis spray gun is installed inside the tubular heater;
鼓风机的出口经第一手动阀门与热风枪的入口相连通，热风枪的出口与管式加热器的热风入口相连通；The outlet of the blower communicates with the inlet of the heat gun through the first manual valve, and the outlet of the heat gun communicates with the hot air inlet of the tubular heater;
水箱的出口经齿轮泵与双流体尿素直喷热解喷枪的液体管道入口相连通；The outlet of the water tank is connected with the liquid pipeline inlet of the dual-fluid urea direct injection pyrolysis spray gun through the gear pump;
空气压缩机的出口经过滤减压器后分为两路，其中一路经第二手动阀门与双流体尿素直喷热解喷枪的雾化空气接口相连通，另一路经第三手动阀门与双流体尿素直喷热解喷枪的冷却空气接口相连通。The outlet of the air compressor is divided into two paths after the filter pressure reducer, one of which is connected to the atomization air interface of the dual-fluid urea direct injection pyrolysis spray gun through the second manual valve, and the other path is connected to the dual-fluid urea direct injection pyrolysis spray gun through the third manual valve. The cooling air port of the fluid urea direct injection pyrolysis spray gun is connected.
鼓风机的出口经第一手动阀门及第一浮子流量计与热风枪的入口相连通，热风枪的出口与管式加热器的热风入口相连通。The outlet of the blower communicates with the inlet of the heat gun through the first manual valve and the first float flowmeter, and the outlet of the heat gun communicates with the hot air inlet of the tubular heater.
水箱的出口经齿轮泵及第一压力表与双流体尿素直喷热解喷枪的液体管道入口。The outlet of the water tank passes through the gear pump, the first pressure gauge and the liquid pipeline inlet of the dual-fluid urea direct injection pyrolysis spray gun.
空气压缩机的出口经过滤减压器后分为两路，其中一路经第二手动阀门、第二浮子流量计及第二压力表与双流体尿素直喷热解喷枪的雾化空气接口相连通，另一路经第三手动阀门及第三浮子流量计与双流体尿素直喷热解喷 枪的冷却空气接口相连通。The outlet of the air compressor is divided into two paths after being filtered and reduced, one of which is connected to the atomizing air interface of the dual-fluid urea direct injection pyrolysis spray gun through the second manual valve, the second float flowmeter and the second pressure gauge The other path is connected to the cooling air interface of the dual-fluid urea direct injection pyrolysis spray gun through the third manual valve and the third float flowmeter.
所述管式加热器包括圆钢管及连接管，其中，连接管的端部与圆钢管尾部的侧面相连通，圆钢管的尾部封闭，热风枪插入于所述连接管内，圆钢管的外壁上缠绕有高温电加热丝，圆钢管的外壁上包裹有保温棉层，双流体尿素直喷热解喷枪的中部套接于所述圆钢管内。The tubular heater includes a round steel pipe and a connecting pipe, wherein the end of the connecting pipe communicates with the side of the tail of the round steel pipe, the tail of the round steel pipe is closed, the heat gun is inserted into the connecting pipe, and the outer wall of the round steel pipe is wound There is a high-temperature electric heating wire, and the outer wall of the round steel pipe is wrapped with an insulating cotton layer, and the middle part of the dual-fluid urea direct-injection pyrolysis spray gun is socketed in the round steel pipe.
热风枪的加热功率可调。The heating power of the heat gun is adjustable.
保温棉层的外侧设置有钢板层。A steel plate layer is arranged on the outer side of the thermal insulation cotton layer.
双流体尿素直喷热解喷枪的中部通过法兰安装于管式加热器内部。The middle part of the dual-fluid urea direct-injection pyrolysis spray gun is installed inside the tubular heater through a flange.
本申请所述的尿素直喷热解喷枪特性测试实验方法包括以下步骤：The urea direct injection pyrolysis spray gun characteristic testing experimental method described in the application comprises the following steps:
打开空气压缩机、过滤减压器、第二手动阀门、第三手动阀门，将冷却空气及雾化空气送入双流体尿素直喷热解喷枪中；打开鼓风机及第一手动阀门，将空气送入热风枪中，空气经热风枪加热后进入到圆钢管中，向电加热丝通电，测量圆钢管的出口风温，当圆钢管的出口风温达到预设范围内时，则打开齿轮泵，向双流体尿素直喷热解喷枪中通入液体，液体经雾化空气雾化后喷出。Turn on the air compressor, filter and pressure reducer, the second manual valve, and the third manual valve, and send the cooling air and atomizing air into the dual-fluid urea direct injection pyrolysis spray gun; turn on the blower and the first manual valve, and send the air Send it into the hot air gun, the air is heated by the hot air gun and enters the round steel pipe, the electric heating wire is energized, and the outlet air temperature of the round steel pipe is measured. When the outlet air temperature of the round steel pipe reaches the preset range, the gear pump is turned on , feed the liquid into the dual-fluid urea direct injection pyrolysis spray gun, and the liquid is sprayed out after being atomized by the atomizing air.
本申请具有以下有益效果：The application has the following beneficial effects:
本申请所述的尿素直喷热解喷枪特性测试实验装置及方法在具体操作时，空气通过鼓风机送至热风枪中加热后送入管式加热器中，通过管式加热器模拟高温的烟气环境，且烟气的温度可调节。通过齿轮泵将水调节至所需流量及压力后送入双流体尿素直喷热解喷枪中，通过空气压缩机、过滤减压器及手动阀门将空气调节到所需要的流量及压力后分别作为雾化空气及冷却空气送入双流体尿素直喷热解喷枪中，以测试双流体尿素直喷热解喷枪在模拟高温烟气环境下的保温隔热性能，进而可以进行调节以满足工程的需要，具有系统简单、参数可调及可靠性高的特点。During the specific operation of the urea direct injection pyrolysis spray gun characteristic testing experimental device and method described in this application, the air is sent to the heat gun by the blower to be heated and then sent to the tube heater, and the high temperature flue gas is simulated by the tube heater environment, and the temperature of the flue gas can be adjusted. The water is adjusted to the required flow and pressure through the gear pump, and then sent to the dual-fluid urea direct injection pyrolysis spray gun, and the air is adjusted to the required flow and pressure through the air compressor, filter pressure reducer and manual valve. The atomizing air and cooling air are sent into the dual-fluid urea direct injection pyrolysis spray gun to test the thermal insulation performance of the dual-fluid urea direct injection pyrolysis spray gun in a simulated high-temperature flue gas environment, and then can be adjusted to meet the needs of the project , with the characteristics of simple system, adjustable parameters and high reliability.
图1为本申请的结构示意图。Fig. 1 is a structural schematic diagram of the present application.
其中，1为双流体尿素直喷热解喷枪、2为管式加热器、3为鼓风机、4为热风枪、51为第一手动阀门、52为第二手动阀门、53为第三手动阀门、61为第一浮子流量计、62为第二浮子流量计、63为第三浮子流量计、7为 过滤减压器、8为空气压缩机、9为水箱、10为齿轮泵、111为第一压力表、112为第二压力表。Among them, 1 is a dual-fluid urea direct injection pyrolysis spray gun, 2 is a tubular heater, 3 is a blower, 4 is a heat gun, 51 is a first manual valve, 52 is a second manual valve, and 53 is a third manual valve , 61 is the first float flowmeter, 62 is the second float flowmeter, 63 is the third float flowmeter, 7 is the filter pressure reducer, 8 is the air compressor, 9 is the water tank, 10 is the gear pump, 111 is the first A pressure gauge, 112 is the second pressure gauge.
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，不是全部的实施例，而并非要限制本申请公开的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要的混淆本申请公开的概念。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only The embodiments that are part of the present application are not all the embodiments, and are not intended to limit the scope of the disclosure of the present application. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concepts disclosed in the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
在附图中示出了根据本申请公开实施例的结构示意图。这些图并非是按比例绘制的，其中为了清楚表达的目的，放大了某些细节，并且可能省略了某些细节。图中所示出的各种区域、层的形状及它们之间的相对大小、位置关系仅是示例性的，实际中可能由于制造公差或技术限制而有所偏差，并且本领域技术人员根据实际所需可以另外设计具有不同形状、大小、相对位置的区域/层。The accompanying drawings show schematic structural diagrams according to embodiments disclosed in the present application. The figures are not drawn to scale, with certain details exaggerated and possibly omitted for clarity of presentation. The shapes of various regions and layers shown in the figure and their relative sizes and positional relationships are only exemplary, and may deviate due to manufacturing tolerances or technical limitations in practice, and those skilled in the art may Regions/layers with different shapes, sizes, and relative positions can be additionally designed as needed.
参考图1，本申请所述的尿素直喷热解喷枪特性测试实验装置包括双流体尿素直喷热解喷枪1、管式加热器2、鼓风机3、热风枪4、第一手动阀门51、第二手动阀门52、第三手动阀门53、第一浮子流量计61、第二浮子流量计62、第三浮子流量计63、过滤减压器7、空气压缩机8、水箱9、齿轮泵10、第一压力表111及第二压力表112；With reference to Fig. 1, the urea direct-injection pyrolysis spray gun characteristic testing experimental device described in the present application comprises two-fluid urea direct-injection pyrolysis spray gun 1, tubular heater 2, air blower 3, heat gun 4, the first manual valve 51, the first Second manual valve 52, third manual valve 53, first float flowmeter 61, second float flowmeter 62, third float flowmeter 63, filter pressure reducer 7, air compressor 8, water tank 9, gear pump 10 , the first pressure gauge 111 and the second pressure gauge 112;
双流体尿素直喷热解喷枪1的中部通过法兰安装于管式加热器2内部；The middle part of the dual-fluid urea direct-injection pyrolysis spray gun 1 is installed inside the tubular heater 2 through a flange;
鼓风机3的出口经第一手动阀门51及第一浮子流量计61与热风枪4的入口相连通，热风枪4的出口与管式加热器2的热风入口相连通；The outlet of the blower 3 is communicated with the inlet of the heat gun 4 through the first manual valve 51 and the first float flowmeter 61, and the outlet of the heat gun 4 is communicated with the hot blast inlet of the tubular heater 2;
水箱9的出口经齿轮泵10及第一压力表111与双流体尿素直喷热解喷枪1的液体管道入口，通过第一压力表111测量进入双流体尿素直喷热解喷枪1的液体压力；The outlet of the water tank 9 passes through the gear pump 10, the first pressure gauge 111 and the liquid pipeline inlet of the dual-fluid urea direct-injection pyrolysis spray gun 1, and the liquid pressure entering the dual-fluid urea direct-injection pyrolysis spray gun 1 is measured by the first pressure gauge 111;
空气压缩机8的出口经过滤减压器7后分为两路，其中一路经第二手动阀 门52、第二浮子流量计62及第二压力表112与双流体尿素直喷热解喷枪1的雾化空气接口相连通，另一路经第三手动阀门53及第三浮子流量计63与双流体尿素直喷热解喷枪1的冷却空气接口相连通，作为双流体尿素直喷热解喷枪1的冷却空气。The outlet of the air compressor 8 is divided into two paths after the filter pressure reducer 7, one of which passes through the second manual valve 52, the second float flowmeter 62 and the second pressure gauge 112 and the dual-fluid urea direct injection pyrolysis spray gun 1 The atomizing air interface of the two-fluid urea direct-injection pyrolysis spray gun 1 is connected through the third manual valve 53 and the third float flowmeter 63 to the cooling air interface of the two-fluid urea direct-injection pyrolysis spray gun 1. of cooling air.
所述管式加热器2包括圆钢管及连接管，其中，连接管的端部与圆钢管尾部的侧面相连通，圆钢管的尾部封闭，热风枪4插入于所述连接管内，圆钢管的外壁上缠绕有高温电加热丝，圆钢管的外壁上包裹有保温棉层，保温棉层的外侧设置有钢板层，热风枪4的加热功率可调，同时结合电加热丝的加热作用以及保温棉层的保温作用，使得圆钢管内部温度维持在预设范围内，双流体尿素直喷热解喷枪1的中部套接于所述圆钢管内。The tubular heater 2 includes a round steel pipe and a connecting pipe, wherein the end of the connecting pipe communicates with the side of the tail of the round steel pipe, the tail of the round steel pipe is closed, the heat gun 4 is inserted into the connecting pipe, and the outer wall of the round steel pipe is High-temperature electric heating wire is wound on the top, and the outer wall of the round steel pipe is wrapped with a thermal insulation cotton layer. The outer side of the thermal insulation cotton layer is provided with a steel plate layer. The heating power of the hot air gun 4 is adjustable. The thermal insulation effect keeps the internal temperature of the round steel pipe within a preset range, and the middle part of the two-fluid urea direct injection pyrolysis spray gun 1 is socketed in the round steel pipe.
本申请主要作用为提供一个模拟实际高温烟气的环境，从而进行双流体尿素直喷热解喷枪1保温隔热性能的实验。The main function of this application is to provide an environment that simulates actual high-temperature flue gas, so as to conduct experiments on the thermal insulation performance of the dual-fluid urea direct-injection pyrolysis spray gun 1 .
本申请所述的尿素直喷热解喷枪特性测试实验方法包括以下步骤：The urea direct injection pyrolysis spray gun characteristic testing experimental method described in the application comprises the following steps:
打开空气压缩机8、过滤减压器7、第二手动阀门52、第三手动阀门53，将冷却空气及雾化空气送入双流体尿素直喷热解喷枪1中；打开鼓风机3及第一手动阀门51，将空气送入热风枪4中，空气经热风枪4加热后进入到圆钢管中，向电加热丝通电，测量圆钢管的出口风温，当圆钢管的出口风温达到预设范围内时，则打开齿轮泵10，向双流体尿素直喷热解喷枪1中通入液体，液体经雾化空气雾化后喷出。Open the air compressor 8, the filter pressure reducer 7, the second manual valve 52, and the third manual valve 53, and send cooling air and atomizing air into the dual-fluid urea direct injection pyrolysis spray gun 1; open the blower 3 and the second A manual valve 51 sends air into the hot air gun 4, and the air enters the round steel pipe after being heated by the hot air gun 4, and energizes the electric heating wire to measure the outlet air temperature of the round steel pipe. When the outlet air temperature of the round steel pipe reaches the preset When it is set within the range, the gear pump 10 is turned on, and liquid is passed into the dual-fluid urea direct injection pyrolysis spray gun 1, and the liquid is sprayed out after being atomized by the atomizing air.
在试验过程中，通过调节过滤减压器7来调节雾化空气的压力，通过调节第三手动阀门53，以调节进入到双流体尿素直喷热解喷枪1中的冷却空气流量。During the test, the pressure of the atomizing air was adjusted by adjusting the filter pressure reducer 7, and the cooling air flow rate entering the dual-fluid urea direct injection pyrolysis spray gun 1 was adjusted by adjusting the third manual valve 53.
通过第一手动阀门51调节将进入到热风枪4中的空气流量至预设定值，再打开热风枪4的电源开关，设定热风枪4的温度，此时空气通过热风枪4加热后进入到圆钢管中。The air flow entering into the heat gun 4 is adjusted to a preset value by the first manual valve 51, and then the power switch of the heat gun 4 is turned on to set the temperature of the heat gun 4. At this time, the air enters after being heated by the heat gun 4. into the round steel tube.
等待双流体尿素直喷热解喷枪1喷出的冷却空气温度稳定后，观察双流体尿素直喷热解喷枪1的雾化效果，同时测量冷却空气的温度。After waiting for the temperature of the cooling air ejected from the dual-fluid urea direct-injection pyrolysis spray gun 1 to stabilize, observe the atomization effect of the dual-fluid urea direct-injection pyrolysis spray gun 1 and measure the temperature of the cooling air at the same time.
本申请的原理为：将空气通过鼓风机3送至热风枪4中加热后送入管式加热器2，管式加热器2中圆钢管上设置有电加热丝及保温棉层，通过热风枪4 的加热功能及电加热丝的加热和保温棉层的保温，模拟一种高温的烟气环境，同时高温烟气的流量及温度可调节。另一方面，通过齿轮泵10将水调节到所需要的流量及压力后送入双流体尿素直喷热解喷枪1，空气压缩机8、过滤减压器7、第二手动阀门52及第三手动阀门53将雾化空气及冷却空气送入双流体尿素直喷热解喷枪1中，其中，进入双流体尿素直喷热解喷枪1中的冷却空气流量独立调节，进入双流体尿素直喷热解喷枪1中的雾化空气的压力及流量也可独立调节。The principle of this application is: the air is sent to the heat gun 4 through the blower 3 to be heated and then sent to the tubular heater 2. The round steel pipe in the tubular heater 2 is provided with an electric heating wire and a thermal insulation cotton layer. The heating function of the electric heating wire and the insulation of the insulation cotton layer simulate a high-temperature flue gas environment, and the flow and temperature of the high-temperature flue gas can be adjusted. On the other hand, after the water is adjusted to the required flow rate and pressure by the gear pump 10, it is sent into the dual-fluid urea direct-injection pyrolysis spray gun 1, the air compressor 8, the filter pressure reducer 7, the second manual valve 52 and the second manual valve 52. Three manual valves 53 send atomizing air and cooling air into the dual-fluid urea direct injection pyrolysis spray gun 1, wherein the flow of cooling air entering the dual-fluid urea direct injection pyrolysis spray gun 1 is independently regulated, and the flow of cooling air entering the dual-fluid urea direct injection pyrolysis spray gun The pressure and flow rate of the atomizing air in the pyrolysis spray gun 1 can also be independently adjusted.
需要说明的是，本申请可以模拟高温烟气环境，并且能够调节高温烟气的流量和温度，同时可以调节进入双流体尿素直喷热解喷枪1的冷却空气流量、雾化空气压力和水的流量，从而测试双流体尿素直喷热解喷枪1在高温烟气环境下的保温隔热性能，并根据需要进行改进，进而设计出满足不同工程应用场景需要的双流体尿素直喷热解喷枪1，本申请系统简单、参数可调、可靠性高，可为工程实施提供技术保障。It should be noted that this application can simulate the high-temperature flue gas environment, and can adjust the flow rate and temperature of the high-temperature flue gas, and at the same time can adjust the cooling air flow rate, atomizing air pressure and water flow rate entering the dual-fluid urea direct injection pyrolysis spray gun 1. In order to test the thermal insulation performance of the dual-fluid urea direct-injection pyrolysis spray gun 1 in a high-temperature flue gas environment, and improve it as needed, and then design a dual-fluid urea direct-injection pyrolysis spray gun 1 that meets the needs of different engineering application scenarios , the application system is simple, with adjustable parameters and high reliability, which can provide technical support for project implementation.
Claims (9)
- 一种尿素直喷热解喷枪特性测试实验装置，其特征在于，包括双流体尿素直喷热解喷枪(1)、管式加热器(2)、鼓风机(3)、热风枪(4)、水箱(9)、齿轮泵(10)、空气压缩机(8)、过滤减压器(7)、第一手动阀门(51)、第二手动阀门(52)及第三手动阀门(53)；An experimental device for testing the characteristics of a urea direct-injection pyrolysis spray gun, characterized in that it includes a two-fluid urea direct-injection pyrolysis spray gun (1), a tubular heater (2), a blower (3), a heat gun (4), and a water tank (9), gear pump (10), air compressor (8), filter pressure reducer (7), first manual valve (51), second manual valve (52) and third manual valve (53);双流体尿素直喷热解喷枪(1)的中部安装于管式加热器(2)内部；The middle part of the dual-fluid urea direct injection pyrolysis spray gun (1) is installed inside the tubular heater (2);鼓风机(3)的出口经第一手动阀门(51)与热风枪(4)的入口相连通，热风枪(4)的出口与管式加热器(2)的热风入口相连通；The outlet of the blower (3) is communicated with the inlet of the heat gun (4) through the first manual valve (51), and the outlet of the heat gun (4) is communicated with the hot blast inlet of the tubular heater (2);水箱(9)的出口经齿轮泵(10)与双流体尿素直喷热解喷枪(1)的液体管道入口相连通；The outlet of the water tank (9) is communicated with the liquid pipeline inlet of the dual-fluid urea direct injection pyrolysis spray gun (1) through the gear pump (10);空气压缩机(8)的出口经过滤减压器(7)后分为两路，其中一路经第二手动阀门(52)与双流体尿素直喷热解喷枪(1)的雾化空气接口相连通，另一路经第三手动阀门(53)与双流体尿素直喷热解喷枪(1)的冷却空气接口相连通。The outlet of the air compressor (8) is divided into two paths after the filter pressure reducer (7), one of which passes through the second manual valve (52) and the atomizing air interface of the dual-fluid urea direct injection pyrolysis spray gun (1) The other is communicated with the cooling air interface of the dual-fluid urea direct injection pyrolysis spray gun (1) through the third manual valve (53).
- 根据权利要求1所述的尿素直喷热解喷枪特性测试实验装置，其特征在于，鼓风机(3)的出口经第一手动阀门(51)及第一浮子流量计(61)与热风枪(4)的入口相连通，热风枪(4)的出口与管式加热器(2)的热风入口相连通。The urea direct injection pyrolysis spray gun characteristic testing experimental device according to claim 1 is characterized in that the outlet of the blower (3) is connected to the heat gun (4) through the first manual valve (51) and the first float flowmeter (61) ) is communicated with the inlet, and the outlet of the heat gun (4) is communicated with the hot blast inlet of the tubular heater (2).
- 根据权利要求2所述的尿素直喷热解喷枪特性测试实验装置，其特征在于，水箱(9)的出口经齿轮泵(10)及第一压力表(111)与双流体尿素直喷热解喷枪(1)的液体管道入口。The characteristic testing experimental device for urea direct-injection pyrolysis spray gun according to claim 2, characterized in that the outlet of the water tank (9) is connected to the two-fluid urea direct-injection pyrolysis via the gear pump (10) and the first pressure gauge (111) Liquid line inlet to spray gun (1).
- 根据权利要求3所述的尿素直喷热解喷枪特性测试实验装置，其特征在于，空气压缩机(8)的出口经过滤减压器(7)后分为两路，其中一路经第二手动阀门(52)、第二浮子流量计(62)及第二压力表(112)与双流体尿素直喷热解喷枪(1)的雾化空气接口相连通，另一路经第三手动阀门(53)及第三浮子流量计(63)与双流体尿素直喷热解喷枪(1)的冷却空气接口相连通。urea direct injection pyrolysis spray gun characteristic test experimental device according to claim 3, it is characterized in that, the outlet of air compressor (8) is divided into two paths after filter pressure reducer (7), and wherein one path passes through the second hand The dynamic valve (52), the second float flowmeter (62) and the second pressure gauge (112) are connected with the atomizing air interface of the dual-fluid urea direct injection pyrolysis spray gun (1), and the other path passes through the third manual valve ( 53) and the third float flowmeter (63) communicate with the cooling air interface of the dual-fluid urea direct injection pyrolysis spray gun (1).
- 根据权利要求1所述的尿素直喷热解喷枪特性测试实验装置，其特 征在于，所述管式加热器(2)包括圆钢管及连接管，其中，连接管的端部与圆钢管尾部的侧面相连通，圆钢管的尾部封闭，热风枪(4)插入于所述连接管内，圆钢管的外壁上缠绕有高温电加热丝，圆钢管的外壁上包裹有保温棉层，双流体尿素直喷热解喷枪(1)的中部套接于所述圆钢管内。urea direct-injection pyrolysis spray gun characteristic test experimental device according to claim 1, is characterized in that, described tubular heater (2) comprises round steel pipe and connecting pipe, wherein, the end of connecting pipe and the afterbody of round steel pipe The sides are connected, the tail of the round steel pipe is closed, the hot air gun (4) is inserted into the connecting pipe, the outer wall of the round steel pipe is wound with a high-temperature electric heating wire, the outer wall of the round steel pipe is wrapped with a layer of insulation cotton, and the two-fluid urea is directly injected The middle part of the pyrolysis spray gun (1) is sleeved in the circular steel pipe.
- 根据权利要求1所述的尿素直喷热解喷枪特性测试实验装置，其特征在于，热风枪(4)的加热功率可调。The urea direct injection pyrolysis spray gun characteristic testing experimental device according to claim 1, characterized in that the heating power of the heat gun (4) is adjustable.
- 根据权利要求5所述的尿素直喷热解喷枪特性测试实验装置，其特征在于，保温棉层的外侧设置有钢板层。The experimental device for testing the characteristics of the urea direct injection pyrolysis spray gun according to claim 5, wherein a steel plate layer is arranged outside the insulation cotton layer.
- 根据权利要求1所述的尿素直喷热解喷枪特性测试实验装置，其特征在于，双流体尿素直喷热解喷枪(1)的中部通过法兰安装于管式加热器(2)内部。The experimental device for testing the characteristics of the urea direct-injection pyrolysis spray gun according to claim 1, wherein the middle part of the two-fluid urea direct-injection pyrolysis spray gun (1) is installed inside the tubular heater (2) through a flange.
- 一种尿素直喷热解喷枪特性测试实验方法，其特征在于，基于权利要求1所述的尿素直喷热解喷枪特性测试实验装置，包括以下步骤：A urea direct-injection pyrolysis spray gun characteristic test experimental method is characterized in that, based on the urea direct-injection pyrolysis spray gun characteristic test experimental device according to claim 1, comprising the following steps:打开空气压缩机(8)、过滤减压器(7)、第二手动阀门(52)、第三手动阀门(53)，将冷却空气及雾化空气送入双流体尿素直喷热解喷枪(1)中；打开鼓风机(3)及第一手动阀门(51)，将空气送入热风枪(4)中，空气经热风枪(4)加热后进入到圆钢管中，向电加热丝通电，测量圆钢管的出口风温，当圆钢管的出口风温达到预设范围内时，则打开齿轮泵(10)，向双流体尿素直喷热解喷枪(1)中通入液体，液体经雾化空气雾化后喷出。Turn on the air compressor (8), filter pressure reducer (7), the second manual valve (52), and the third manual valve (53), and send the cooling air and atomizing air into the dual-fluid urea direct injection pyrolysis spray gun (1); open the blower (3) and the first manual valve (51), send air into the heat gun (4), the air enters the round steel pipe after being heated by the heat gun (4), and energizes the electric heating wire , measure the outlet air temperature of the round steel pipe, when the outlet air temperature of the round steel pipe reaches the preset range, turn on the gear pump (10), and feed liquid into the dual-fluid urea direct injection pyrolysis spray gun (1), and the liquid passes through The atomizing air is sprayed out after atomization.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250932.8A CN113959749A (en) | 2021-10-26 | 2021-10-26 | Experimental device and method for testing characteristics of urea direct injection pyrolysis spray gun |
| CN202111250932.8 | 2021-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023071261A1 true WO2023071261A1 (en) | 2023-05-04 |
Family
ID=79467250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/102024 WO2023071261A1 (en) | 2021-10-26 | 2022-06-28 | Experimental device and method for testing features of urea direct-injection pyrolysis spray gun |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113959749A (en) |
| WO (1) | WO2023071261A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959749A (en) * | 2021-10-26 | 2022-01-21 | 西安热工研究院有限公司 | Experimental device and method for testing characteristics of urea direct injection pyrolysis spray gun |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301747A (en) * | 2013-06-07 | 2013-09-18 | 大连贝斯特环境工程设备有限公司 | SCR (Selective Catalytic Reduction) flue gas denitration device for urea pyrolysis |
| US20150241400A1 (en) * | 2012-10-23 | 2015-08-27 | Cummins Emission Solutions Inc. | Uniformity index performance evaluation in an scr aftertreatement system |
| CN106955593A (en) * | 2017-04-17 | 2017-07-18 | 西安西热锅炉环保工程有限公司 | A kind of two-fluid spray gun structure suitable for chimney flue type urea direct-injection pyrolytic process |
| CN108625962A (en) * | 2018-06-14 | 2018-10-09 | 河南科技大学 | Spray characteristics analytical equipment |
| CN111249906A (en) * | 2020-03-16 | 2020-06-09 | 西安西热锅炉环保工程有限公司 | Metering distribution system and method for urea direct injection pyrolysis process |
| CN113959749A (en) * | 2021-10-26 | 2022-01-21 | 西安热工研究院有限公司 | Experimental device and method for testing characteristics of urea direct injection pyrolysis spray gun |
| CN216669293U (en) * | 2021-10-26 | 2022-06-03 | 西安热工研究院有限公司 | Urea direct injection pyrolysis spray gun characteristic test experimental device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204656771U (en) * | 2015-04-02 | 2015-09-23 | 河北诚誉喷雾技术有限公司 | A kind of SNCR denitrification spray gun |
| CN107398176A (en) * | 2017-09-14 | 2017-11-28 | 上海宝钢节能环保技术有限公司 | Urea pyrolysis and spraying system for low-temperature smoke air SCR denitration |
| CN208771196U (en) * | 2018-08-10 | 2019-04-23 | 青岛艳阳天环保科技有限公司 | Denitration adjust automatically refines injection apparatus |
| CN111214954A (en) * | 2018-11-26 | 2020-06-02 | 华能北京热电有限责任公司 | Urea denitration system and method based on gas-steam combined cycle unit |
| CN111545038A (en) * | 2019-02-11 | 2020-08-18 | 上海逐源机械科技有限公司 | Urea solution pyrolysis denitration spray gun |
| CN214345531U (en) * | 2020-12-14 | 2021-10-08 | 华能山东发电有限公司众泰电厂 | Compressed air intervention device for improving SNCR (Selective non catalytic reduction) denitration efficiency and SNCR denitration system |
-
2021
- 2021-10-26 CN CN202111250932.8A patent/CN113959749A/en active Pending
-
2022
- 2022-06-28 WO PCT/CN2022/102024 patent/WO2023071261A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150241400A1 (en) * | 2012-10-23 | 2015-08-27 | Cummins Emission Solutions Inc. | Uniformity index performance evaluation in an scr aftertreatement system |
| CN103301747A (en) * | 2013-06-07 | 2013-09-18 | 大连贝斯特环境工程设备有限公司 | SCR (Selective Catalytic Reduction) flue gas denitration device for urea pyrolysis |
| CN106955593A (en) * | 2017-04-17 | 2017-07-18 | 西安西热锅炉环保工程有限公司 | A kind of two-fluid spray gun structure suitable for chimney flue type urea direct-injection pyrolytic process |
| CN108625962A (en) * | 2018-06-14 | 2018-10-09 | 河南科技大学 | Spray characteristics analytical equipment |
| CN111249906A (en) * | 2020-03-16 | 2020-06-09 | 西安西热锅炉环保工程有限公司 | Metering distribution system and method for urea direct injection pyrolysis process |
| CN113959749A (en) * | 2021-10-26 | 2022-01-21 | 西安热工研究院有限公司 | Experimental device and method for testing characteristics of urea direct injection pyrolysis spray gun |
| CN216669293U (en) * | 2021-10-26 | 2022-06-03 | 西安热工研究院有限公司 | Urea direct injection pyrolysis spray gun characteristic test experimental device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113959749A (en) | 2022-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021184786A1 (en) | Urea direct-injection pyrolysis denitrification device arranged inside outlet flue duct of gas turbine | |
| CN201411434Y (en) | Foamed asphalt foaming device | |
| CN205392185U (en) | Gas boiler catalytic denitrification system | |
| CN106525434A (en) | Injecting equipment for direct connection test of novel stamping engine and environment simulation system | |
| WO2023071261A1 (en) | Experimental device and method for testing features of urea direct-injection pyrolysis spray gun | |
| CN106289789B (en) | SCR catalytic muffler low temperature urea crystals simulation experiment systems | |
| CN202527072U (en) | Selective catalytic reduction (SCR) smoke denitration device based on urea solutions or ammonia water | |
| CN107806636A (en) | Diesel engine vent gas simulation generator | |
| CN205392184U (en) | Small -size gas boiler flue gas low temperature catalytic denitrification system | |
| CN112169593A (en) | Accurate pyrolysis device that directly spouts suitable for combustion engine SCR denitration | |
| CN216669293U (en) | Urea direct injection pyrolysis spray gun characteristic test experimental device | |
| CN107288743A (en) | A kind of water jet internal combustion engine exhaust system | |
| CN209020198U (en) | A kind of urea liquid pyrolysis installation applied to denitrating system | |
| CN209011974U (en) | Hydrogen loading engine power assembly | |
| CN102767902B (en) | A kind of electromagnetic energy heat conducting oil heated air circulating low pressure boiler device | |
| CN206647189U (en) | A kind of device using engine exhaust waste heat low-temperature reformate fuel | |
| CN209378805U (en) | A kind of distributed denitrating system of low energy consumption | |
| CN209476010U (en) | A kind of urea denitrating system based on Combined cycle gas-steam turbine unit | |
| CN203891980U (en) | Air-assisted urea supply device for diesel engine | |
| CN209378806U (en) | A kind of low energy consumption afterburning heated type denitrating system | |
| CN111229037A (en) | Denitration device and method for gas-steam combined cycle unit by using ammonia water as reducing agent | |
| CN203756371U (en) | Gas inlet channel humidifying device for supercharged diesel engine | |
| CN206199039U (en) | A kind of denitration ammonia gas for pretreatment system | |
| CN208633904U (en) | Ammonia storage and ammonia metering injection system with electric heating and engine waste heat heating functions | |
| CN112682228B (en) | Bypass air inlet heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22885166 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 22885166 Country of ref document: EP Kind code of ref document: A1 |