阅读说明：本技术 一种用细水雾控制柴油机组烟气排放的装置 (Device for controlling smoke emission of diesel engine set by using fine water mist ) 是由 李爱华 李辉 汪波 李庆辉 冯永保 李卓徽 曹继平 李亚奇 于 2019-12-04 设计创作，主要内容包括：本发明属于烟气处理技术领域,具体涉及一种用细水雾控制柴油机组烟气排放的装置,包括柜体和高压细水雾消烟降温装置,高压细水雾消烟降温装置包括高压给水子系统、补水子系统、喷雾降温子系统、除液子系统和电控子系统；高压给水子系统设置于柜体内部,高压给水子系统包括有储水箱、增压泵、高压供水管道、转接块、溢流阀、安全阀、常闭手动球阀、高压分水器和截止阀；补水子系统设置于柜体内部,补水子系统包括有补水泵、补水取水管路、补水过滤器、精滤器；喷雾降温子系统包括有喷雾降温管道和离心式雾化喷嘴；除液子系统包括有汽水分离器；电控子系统包括有液位传感器、高压卸荷电磁阀、流量传感器温度传感器和控制面板。(The invention belongs to the technical field of flue gas treatment, and particularly relates to a device for controlling the emission of flue gas of a diesel engine unit by using fine water mist, which comprises a cabinet body and a high-pressure fine water mist smoke prevention and cooling device, wherein the high-pressure fine water mist smoke prevention and cooling device comprises a high-pressure water supply subsystem, a water supplementing subsystem, a mist cooling subsystem, a liquid removing subsystem and an electric control subsystem; the high-pressure water supply subsystem is arranged in the cabinet body and comprises a water storage tank, a booster pump, a high-pressure water supply pipeline, a switching block, an overflow valve, a safety valve, a normally closed manual ball valve, a high-pressure water separator and a stop valve; the water replenishing subsystem is arranged inside the cabinet body and comprises a water replenishing pump, a water replenishing and taking pipeline, a water replenishing filter and a fine filter; the spray cooling subsystem comprises a spray cooling pipeline and a centrifugal atomizing nozzle; the liquid removing subsystem comprises a steam-water separator; the electric control subsystem comprises a liquid level sensor, a high-pressure unloading electromagnetic valve, a flow sensor temperature sensor and a control panel.)

1. The utility model provides a device of diesel engine set smoke emission is controlled with thin water smoke, includes cabinet body (1) and high-pressure thin water smoke elimination heat sink, its characterized in that: the high-pressure water mist smoke abatement and temperature reduction device comprises a high-pressure water supply subsystem, a water replenishing subsystem, a spray temperature reduction subsystem, a liquid removal subsystem and an electric control subsystem;

the high-pressure water supply subsystem is arranged inside the cabinet body (1), and comprises a water storage tank (21), a booster pump (22), a high-pressure water supply pipeline, a transfer block (23), an overflow valve (24), a safety valve (25), a normally closed manual ball valve (26), a high-pressure water separator (27) and a stop valve (28), wherein the high-pressure water supply subsystem can pump water out of the water storage tank (21) through the high-pressure water supply pipeline, boost the water and send the water out through the high-pressure water supply pipeline;

the water replenishing subsystem is arranged inside the cabinet body (1), and comprises a water replenishing pump (31), a water replenishing and taking pipeline, a water replenishing filter (32) and a fine filter (33), and the water replenishing subsystem can filter water while pumping water into the water storage tank (21) through the water replenishing and taking pipeline;

the spray cooling subsystem comprises a spray cooling pipeline (41) and a centrifugal atomizing nozzle (42), and can spray high-pressure water into fine water mist through the centrifugal atomizing nozzle (42) to eliminate smoke and cool smoke in the spray cooling pipeline (41);

the liquid removing subsystem comprises a steam-water separator (51), and can separate out water vapor attached to the cooled flue gas;

the electronic control subsystem comprises a liquid level sensor, a high-pressure unloading electromagnetic valve (61), a flow sensor (62), a temperature sensor (63) and a control panel (64), and can remotely control the operation of the device, monitor parameters in the device in real time and allow workers to check the parameters in real time.

2. The device for controlling the emission of flue gas of a diesel engine set by using water mist as claimed in claim 1, wherein: among the high pressure water supply subsystem storage water tank (21) exit end and the entrance point fixed connection of booster pump (22), booster pump (22) exit end is connected with switching block (23), switching block (23) are connected with overflow valve (24), relief valve (25), normally closed manual ball valve (26) and high pressure water knockout drum (27), overflow valve (24), relief valve (25), normally closed manual ball valve (26) and high pressure water knockout drum (27) are parallelly connected each other, overflow valve (24) exit end and relief valve (25) exit end communicate each other after with storage water tank (21) fixed connection, normally closed manual ball valve (26) exit end and storage water tank (21) fixed connection, high pressure water knockout drum (27) exit end is connected with a plurality of raceway (271), raceway (271) are equipped with stop valve (28). The high-pressure water supply pipeline pressure relief valve is characterized in that the overflow valve (24) is normally open and used for automatically adjusting pipeline pressure, the safety valve (25) is normally closed and used for automatically opening and relieving pressure when the internal pressure of the pipeline is overlarge, the normally closed manual ball valve (26) is used for manually opening to enable the high-pressure water supply pipeline to return water for pressure relief, the high-pressure water separator (27) is used for respectively sending high-pressure water to each pipeline at the rear end, and the stop valve (28) can control the opening and closing of each pipeline at the rear end of the high-pressure.

3. The device for controlling the smoke discharge of the diesel unit by using the water mist according to any one of the claims 1-2, is characterized in that: the adapter block (23) is provided with a pressure gauge (231) and a pressure transmitter (232).

4. The device for controlling the smoke discharge of a diesel unit by using the water mist according to any one of the claims 1 to 3, is characterized in that: the outlet end of the water replenishing filter (32) in the water replenishing subsystem is fixedly connected with the inlet end of a water replenishing pump (31), and the outlet end of the water replenishing pump (31) is fixedly connected with a fine filter (33).

5. The device for controlling the smoke discharge of a diesel unit by using the water mist according to any one of the claims 1 to 4, is characterized in that: in the mist cooling subsystem mist cooling pipeline (41) inside is equipped with a plurality of centrifugal atomizing nozzle (42), raceway (271) run through behind mist cooling pipeline (41) outer wall with centrifugal atomizing nozzle (42) fixed connection, mist cooling pipeline (41) are equipped with a plurality of first drain pipes (411), centrifugal atomizing nozzle (42) orientation is opposite with mist cooling pipeline (41) advances cigarette direction.

6. The device for controlling the smoke discharge of a diesel unit by using the water mist according to any one of the claims 1 to 5, is characterized in that: the inlet end of the steam-water separator (51) in the liquid removing subsystem is fixedly connected with the outlet end of the spray cooling pipeline (41), the outlet end of the steam-water separator (51) is fixedly connected with a smoke exhaust pipe (52), and a second water drain pipe (511) is arranged on the lower side of the steam-water separator (51).

7. The device for controlling the emission of the flue gas of the diesel unit by using the water mist according to any one of the claims 1 to 6, is characterized in that: the signal input end of the control panel (64) of the electric control subsystem is respectively connected with the signal output end of the liquid level sensor, the signal output end of the flow sensor (62) and the signal output end of the temperature sensor (63) in a signal connection way, the control panel (64) is electrically connected with the high-pressure unloading electromagnetic valve (61), the control panel (64) is positioned at one side of the cabinet body, the liquid level sensor can detect the liquid level height in the water storage tank (21), the outlet end of the high-pressure unloading electromagnetic valve (61) is fixedly connected with the water storage tank (21) after being communicated with the outlet end of the normally closed manual ball valve (26), the high-pressure unloading electromagnetic valve (61) can be remotely controlled to be opened and closed, the flow sensor (62) can detect the flow condition of a high-pressure water supply pipeline of the system in real time, the temperature sensor (63) can detect temperature information in the spray cooling pipeline (41).

8. The device for controlling the emission of diesel engine set fumes with fine water mist according to claims 1-7, characterized in that: the liquid level sensor is installed at the top of the water storage tank (21), the high-pressure unloading electromagnetic valve (61) is connected with the normally closed manual ball valve (26) in parallel, the flow sensor (62) is installed between the adapter block (4) and the high-pressure water separator (27), and the temperature sensors (63) are installed at the inlet end and the outlet end of the spray cooling pipeline (41) respectively.

Technical Field

The invention belongs to the technical field of flue gas treatment, and particularly relates to a device for controlling the emission of flue gas of a diesel engine unit by using water mist.

Background

The diesel generator set is a power generation device using diesel as main fuel, and is a mechanical device which uses a diesel engine as a motive power to drive a generator (namely an electric ball) to generate power and convert kinetic energy into electric energy and heat energy. When the diesel generating set works, a large amount of high-heat smoke is discharged, and meanwhile, partial carbon particles, harmful gases and the like are attached to the smoke, in view of the harm of the substances to the environment and human health, the smoke must be purified before being discharged into the atmosphere, so that the smoke reaches the discharge standard, and the smoke treatment and the smoke discharge requirements become important factors influencing the waste incineration treatment economy and the environmental influence.

The basic principle of smoke abatement and temperature reduction of high-pressure water mist is that cooling water is pressurized to dozens to hundreds of atmospheric pressures by utilizing the mechanism that high-pressure water flow can be rapidly atomized when passing through narrow holes, and then is atomized at high speed by a reducing microporous nozzle to form a large amount of fine water droplets (water mist) with the particle size of 10-100 mu m, the surface area of the water droplets is increased by nearly ten thousand times, the water droplets are rapidly vaporized after encountering high-temperature flue gas, and absorb a large amount of heat of the flue gas, so that the temperature of the high-temperature flue gas is rapidly reduced, meanwhile, the water mist also has a washing effect on the flue gas, and carbon particles, harmful gases and the fine water.

The system structure of the existing water mist smoke abatement cooling device is too simple, the cooling and smoke abatement effect is not good, the safety is lower, meanwhile, water vapor in smoke cannot be separated out to cause waste, and the system of the existing water mist smoke abatement cooling device does not have a water filtering function and cannot realize intelligent control and real-time monitoring.

Disclosure of Invention

The purpose of the invention is: the device aims to provide a device for controlling the smoke emission of a diesel engine set by using fine water mist, and solves the problems that the system structure of the existing water mist smoke abatement cooling device is too simple, the cooling and smoke abatement effect is poor, the safety is low, meanwhile, water vapor in smoke cannot be separated out to cause waste, and the system of the existing water mist smoke abatement cooling device does not have a water filtering function and cannot realize intelligent control and real-time monitoring.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a device for controlling the smoke emission of a diesel engine set by using fine water mist comprises a cabinet body and a high-pressure fine water mist smoke prevention and cooling device, wherein the high-pressure fine water mist smoke prevention and cooling device comprises a high-pressure water supply subsystem, a water replenishing subsystem, a spray cooling subsystem, a liquid removal subsystem and an electric control subsystem;

the high-pressure water supply subsystem is arranged inside the cabinet body and comprises a water storage tank, a booster pump, a high-pressure water supply pipeline, a switching block, an overflow valve, a safety valve, a normally closed manual ball valve, a high-pressure water separator and a stop valve, and the high-pressure water supply subsystem can pump water out of the water storage tank through the high-pressure water supply pipeline, boost the water and send the water out through the high-pressure water supply pipeline;

the water replenishing subsystem is arranged inside the cabinet body and comprises a water replenishing pump, a water replenishing and taking pipeline, a water replenishing filter and a fine filter, and the water replenishing subsystem can filter water while pumping water into the water storage tank through the water replenishing and taking pipeline;

the spray cooling subsystem comprises a spray cooling pipeline and a centrifugal atomizing nozzle, and can spray high-pressure water into fine water mist through the centrifugal atomizing nozzle so as to eliminate smoke and cool smoke in the spray cooling pipeline;

the liquid removal subsystem comprises a steam-water separator and can separate out water vapor attached to the cooled flue gas;

the electronic control subsystem comprises a liquid level sensor, a high-pressure unloading electromagnetic valve, a flow sensor, a temperature sensor and a control panel, and can remotely control the operation of the device, monitor parameters in the device in real time and provide real-time checking for workers.

The water storage tank outlet end in the high-pressure water supply subsystem is fixedly connected with the inlet end of the booster pump, the outlet end of the booster pump is connected with a transfer block, the transfer block is connected with an overflow valve, a safety valve, a normally closed manual ball valve and a high-pressure water separator, the overflow valve, the safety valve, the normally closed manual ball valve and the high-pressure water separator are connected in parallel, the outlet end of the overflow valve and the outlet end of the safety valve are fixedly connected with the water storage tank after being communicated with each other, the outlet end of the normally closed manual ball valve is fixedly connected with the water storage tank, the outlet end of the high-. The overflow valve is normally open and used for automatically adjusting the pressure of the pipeline, the safety valve is normally closed and used for automatically opening and releasing the pressure when the internal pressure of the pipeline is too high, the normally closed manual ball valve is used for manually opening to enable the high-pressure water supply pipeline to return water and release the pressure, the high-pressure water separator is used for respectively delivering high-pressure water to each pipeline at the rear end, and the stop valve can control the opening and closing of each pipeline at the rear end of the high-pressure water separator. With such a structure, the pressure of the high-pressure water supply pipeline can be kept stable while the water is pressurized.

Further, the adapter block is provided with a pressure gauge and a pressure transmitter. By adopting the structure, people can monitor the pressure condition in the high-pressure water supply pipeline in real time.

Further limiting, the outlet end of the water replenishing filter in the water replenishing subsystem is fixedly connected with the inlet end of a water replenishing pump, and the outlet end of the water replenishing pump is fixedly connected with the fine filter. By the structure, two-stage filtration can be realized before water is pumped into the water storage tank, and the centrifugal atomizing nozzle is prevented from being blocked by impurities in the water.

Further inject, in the mist cooling subsystem the inside a plurality of centrifugal atomizing nozzle that are equipped with of mist cooling pipeline, the raceway runs through behind the mist cooling pipeline outer wall with centrifugal atomizing nozzle fixed connection, the mist cooling pipeline is equipped with a plurality of first drain pipes, centrifugal atomizing nozzle orientation and mist cooling pipeline advance the cigarette opposite direction. Such structure can make water mist and flue gas reverse heat transfer, and the heat transfer effect is more abundant, and the cooling effect is better to can discharge the water after the heat transfer along the pipe wall through first calandria pipe and retrieve, avoid extravagant.

Further limiting, the inlet end of the steam-water separator in the liquid removal subsystem is fixedly connected with the outlet end of the spray cooling pipeline, the outlet end of the steam-water separator is fixedly connected with a smoke exhaust pipe, and a second drain pipe is arranged on the lower side of the steam-water separator. By adopting the structure, water in the water vapor attached to the flue gas can be separated out and recycled, and waste is avoided.

Further inject, automatically controlled subsystem control panel signal input part respectively with level sensor signal output part, flow sensor signal output part and temperature sensor signal output part signal connection, control panel is connected with high pressure off-load solenoid valve electricity, control panel is located cabinet body one side, level sensor can detect the liquid level height in the water storage tank, high pressure off-load solenoid valve exit end and the manual ball valve exit end of normal close communicate back each other with storage water tank fixed connection, high pressure off-load solenoid valve can the remote control switching, flow sensor can the real-time detection system high pressure water supply pipeline's the flow condition, temperature sensor can detect the inside temperature information of spray cooling pipeline. By means of the structure, people can check the running state of each component of the device and the cooling condition inside the spray cooling pipeline in real time through the control panel.

Further limiting, the liquid level sensor is installed at the top of the water storage tank, the high-pressure unloading electromagnetic valve is connected with the normally closed manual ball valve in parallel, the flow sensor is installed between the adapter block and the high-pressure water separator, and the temperature sensors are installed at the inlet end and the outlet end of the spray cooling pipeline respectively.

Compared with the prior art, the invention has the following advantages:

1. the centrifugal atomizing nozzle can ensure that the water mist is better in uniformity and has larger initial kinetic energy and diffusivity, and meanwhile, the centrifugal atomizing nozzle carries out reverse heat exchange with flue gas, so that the heat exchange effect is more sufficient, and the cooling and smoke abatement effects are better;

2. the pressure in the high-pressure water supply pipeline can be kept stable through the overflow valve, the safety valve, the normally closed manual ball valve and the high-pressure unloading electromagnetic valve, and potential safety hazards caused by the fact that the pressure of the high-pressure water supply pipeline is too high and cannot be regulated and controlled are prevented;

3. the water after heat exchange is discharged and recycled through the first drain pipe along the pipe wall, and meanwhile, the steam-water separator and the second drain pipe can separate out and recycle the water vapor attached to the flue gas, so that water waste is avoided;

4. the water can be filtered, and impurities in the water are prevented from blocking the centrifugal atomizing nozzle;

5. through level sensor, flow sensor and temperature sensor can real time monitoring device each part behavior and the inside behavior of spray cooling pipeline to control the relevant part of device through temperature and pressure variation, it is more intelligent.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of an embodiment of the device for controlling the emission of flue gas of a diesel engine set by using water mist;

FIG. 2 is an enlarged schematic view of the structure at the position A of an embodiment of the device for controlling the emission of the flue gas of the diesel engine set by using water mist;

FIG. 3 is a schematic view of an elevation inside the cabinet of an embodiment of the device for controlling the emission of flue gas from a diesel engine unit by using water mist according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at the front view B inside the cabinet body of the embodiment of the device for controlling the emission of the flue gas of the diesel engine set by using water mist;

FIG. 5 is a schematic diagram of a side view of the interior of the cabinet of an embodiment of the device for controlling the emission of flue gas from a diesel engine unit by using water mist according to the invention;

FIG. 6 is a schematic view of a rear view of the interior of the cabinet of an embodiment of the device for controlling the emission of flue gas from a diesel engine unit by using water mist according to the present invention;

the main element symbols are as follows:

the device comprises a cabinet body 1, a water storage tank 21, a booster pump 22, a switching block 23, a pressure gauge 231, a pressure transmitter 232, an overflow valve 24, a safety valve 25, a normally closed manual ball valve 26, a high-pressure water separator 27, a water delivery pipe 271, a stop valve 28, a water replenishing pump 31, a water replenishing filter 32, a fine filter 33, a spray cooling pipeline 41, a first drain pipe 411, a centrifugal atomizing nozzle 42, a steam-water separator 51, a second drain pipe 511, a smoke exhaust pipe 52, a high-pressure unloading electromagnetic valve 61, a flow sensor 62, a temperature sensor 63 and a control panel 64.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in figures 1-6, the device for controlling the emission of the flue gas of the diesel engine set by using the fine water mist comprises a cabinet body 1 and a high-pressure fine water mist smoke abatement and temperature reduction device, wherein a water replenishing and taking pipeline is arranged inside the cabinet body 1, the water replenishing and taking pipeline is fixedly connected with a water replenishing filter 32, an outlet end of the water replenishing filter 32 is fixedly connected with a water replenishing pump 31, an outlet end of the water replenishing pump 31 is fixedly connected with a fine filter 33, the fine filter 33 is fixedly connected with a water storage tank 21, the top of the water storage tank 21 is provided with a liquid level sensor, an outlet end of the water storage tank 21 is fixedly connected with a booster pump 22, a rear end pipeline of the booster pump 22 is connected with a switching block 23, the switching block 23 is provided with a pressure gauge 231 and a pressure transmitter 232, the switching block 23 is fixedly connected with an overflow valve 24, a safety valve 25, a, the outlet end of the normally closed manual ball valve 26 and the outlet end of the high-pressure unloading electromagnetic valve 61 are fixedly connected with the water storage tank 21 after being communicated with each other, a flow sensor 62 is arranged between the adapter block 23 and the high-pressure water separator 27, the high-pressure water separator 27 is provided with a plurality of water conveying pipes 271, the water conveying pipes 271 are provided with stop valves 28, the upper side of the water conveying pipes 271 is provided with a spray cooling pipeline 41, the inlet end and the outlet end of the spray cooling pipeline 41 are both provided with temperature sensors 63, the water conveying pipes 271 penetrate through the outer wall of the spray cooling pipeline 41 and enter the interior of the spray cooling pipeline 41 and then are fixedly connected with centrifugal atomizing nozzles 42, the centrifugal atomizing nozzles 42 face opposite to the smoke inlet direction of the spray cooling pipeline 41, the lower side of the spray cooling pipeline 41 is provided with a plurality of first water discharge pipes 411, the outlet end of the spray cooling, one side of the cabinet body 1 is provided with a control panel 64, the control panel 64 is positioned at one side of the cabinet body, the signal input end of the control panel 64 is respectively in signal connection with the signal output end of the liquid level sensor, the signal output end of the flow sensor 62 and the signal output end of the temperature sensor 63, and the control panel 64 is electrically connected with the high-pressure unloading electromagnetic valve 61.

By adopting the technical scheme of the invention, the operation conditions of all parts of the device can be checked in real time by checking the control panel 64; monitoring the height change of the liquid level in the water storage tank 21 according to the liquid level transmitter 51 of the water storage tank 21, when the liquid level is low, opening the water replenishing pump 31, pumping water into the water storage tank 21 after two-stage filtration through the water replenishing pump 31, when the temperature in the spray cooling pipeline 41 is overhigh, opening the booster pump 22, pumping out the water storage tank 21 and boosting the water pressure to a set value, monitoring the water pressure in the high-pressure water supply pipeline to reach the set value through the pressure gauge 231 and the pressure sensor 232, sending the water out, flowing through the switching block 23 and the high-pressure water separator 27, monitoring the water flow passing through the flow sensor 62 in real time, opening the stop valve 28, sending high-pressure water to the centrifugal atomizing nozzle 42 through the water pipe 271 to spray water mist to perform reverse heat exchange on the flue gas, washing carbon particles and harmful gases in the flue gas, and reducing the temperature, the water after heat exchange in the spray cooling pipeline 41 can be discharged and recycled through the first water discharge pipe 411 along the pipe wall, then according to the temperature condition detected by the temperature sensor 63 at the outlet end of the spray cooling pipeline 41, when the temperature is reduced to the required range, the booster pump 22 is closed, and the water vapor attached to the smoke after smoke elimination and temperature reduction can be separated out by the vapor-water separator 51, discharged and recycled through the second water discharge pipe 511, and finally discharged through the smoke discharge pipe 52,

when the internal pressure of the adapter block 23 is higher than a set value, the overflow valve 24 and the safety valve 25 are both in an open state, high-pressure water in the adapter block 23 flows back to the water storage tank 21, so that the internal pressure of the high-pressure water supply pipeline is reduced, and meanwhile, the internal pressure of the high-pressure water supply pipeline can be reduced by opening the normally closed manual ball valve 26 and the high-pressure unloading electromagnetic valve 61, so that the device can run safely;

the invention solves the problems that the system structure of the existing water mist smoke abatement cooling device is too simple, the cooling and smoke abatement effect is not good, the safety is lower, meanwhile, the water vapor in the smoke cannot be separated out to cause waste, and the system of the existing water mist smoke abatement cooling device does not have the water filtering function and can not realize intelligent control and real-time monitoring.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.