CN215175162U

CN215175162U - Open type shock wave soot blower ignition system

Info

Publication number: CN215175162U
Application number: CN202121014701.2U
Authority: CN
Inventors: 郁冬; 徐亮
Original assignee: Guozhi Automatic System Zhangjiagang Co ltd
Current assignee: Guozhi Automatic System Zhangjiagang Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-12-14
Anticipated expiration: 2031-05-12

Abstract

The utility model relates to a shock wave soot blower ignition system, in particular to an open shock wave soot blower ignition system, which comprises a gas device, an air device and a shock wave device; the gas device comprises a gas inlet pipe, a gas two-way electromagnetic valve, a gas check valve and a tempering check valve which are connected in sequence; the air device comprises an air inlet pipe, an air electromagnetic valve, an air check valve, a three-way joint and a mixed gas check valve which are connected in sequence; the shock wave device comprises a flame arrester, a shock wave transmitting pipe and a gas mixing pipe which are arranged at two ends of the flame arrester, a spark plug arranged on the shock wave transmitting pipe, and a connecting pipe arranged on the gas mixing pipe; the tempering check valve is connected with the three-way joint, and the mixed gas check valve is connected with the connecting pipe. The system can effectively prevent the occurrence of 'backfire', 'dumb gun', insufficient blasting strength, gas leakage and other faults, and even if gas is leaked, gas gathering can not occur, so that the system is safer and ensures safe and reliable ignition.

Description

Open type shock wave soot blower ignition system

Technical Field

The utility model relates to a shock wave soot blower ignition system, especially an open shock wave soot blower ignition system.

Background

The working principle of the shock wave soot blower is as follows: the fuel (usually acetylene, coal gas, natural gas, liquefied petroleum gas and other common gas fuels) is deflagrated in a specially designed device, violent deflagration gas is instantaneously raised to high pressure, a shock wave is generated in the device, and the shock wave is radiated to a soot blowing surface from a nozzle of the device; by controlling the intensity of the shock wave, the device can meet the soot blowing requirements of various types of soot on the heat exchange surfaces of different types of industrial furnaces and heat exchangers, and can ensure that various types of soot are cracked under the shock of the shock wave with proper and sufficient intensity and are separated from the heat exchange surfaces, thereby improving the heat efficiency of the heat exchange surfaces and improving the energy efficiency. The whole soot blower system mainly comprises an air source, an ignition system, a pulse tank, a nozzle pipe, a control system and the like. The ignition system is a relevant part of the whole soot blower, and if ignition fails, a 'dummy shot' is generated, if 'backfire' or gas leakage occurs, a gas source of the gas must be cut off immediately, otherwise, a safety accident can be generated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a can prevent effectively that "tempering", "mute big gun", the intensity of blasting is not enough, the gas leaks the equal trouble, ignites safe, reliable an open shock wave soot blower ignition system, concrete technical scheme is:

an open type shock wave soot blower ignition system comprises a gas device, an air device and a shock wave device; the gas device comprises a gas inlet pipe, a gas two-way electromagnetic valve, a gas check valve and a tempering check valve which are connected in sequence; the air device comprises an air inlet pipe, an air electromagnetic valve, an air check valve, a three-way joint and a mixed gas check valve which are connected in sequence; the shock wave device comprises a flame arrester, a shock wave transmitting pipe arranged at one end of the flame arrester, a spark plug arranged on the shock wave transmitting pipe, a gas mixing pipe arranged at the other end of the flame arrester and a connecting pipe arranged on the gas mixing pipe; the tempering check valve is connected with the three-way joint, and the gas mixture check valve is connected with the connecting pipe.

By adopting the technical scheme, the gas device, the air device, the shock wave device and the water discharging device are independent parts, modularization is realized, assembly, maintenance and maintenance are convenient, the whole open shock wave soot blower ignition system is also modularized, installation and control are convenient, and the open shock wave soot blower ignition system can be controlled by one set of control system to be symmetrically installed.

The fuel gas two-way electromagnetic valve can ensure the reliable cut-off of the fuel gas.

The gas check valve is used for preventing gas return, and the tempering check valve prevents to take place the tempering, realizes dual fail-safe, and the security is high.

The air check valve prevents backflow of air, and the mixer check valve prevents backflow of mixed gas, allowing unidirectional circulation of gas.

The fuel gas two-way electromagnetic valve and the air electromagnetic valve can control the proportion of fuel gas and air.

Preferably, the gas leakage alarm is arranged on one side of the gas device or the shock wave device.

By adopting the technical scheme, when gas leakage occurs, the gas leakage alarm detects the gas and controls the gas two-way electromagnetic valve to be closed, so that the gas is cut off.

Preferably, the fire arrester further comprises a drainage device, wherein the drainage device comprises a drainage pipe and a drainage electromagnetic valve which are connected with each other, and the drainage electromagnetic valve is connected with the fire arrester.

Preferably, the shock wave device further comprises a temperature sensor and/or a pressure sensor, and the temperature sensor and the pressure sensor are both mounted on the gas mixing pipe.

Through adopting above-mentioned technical scheme, cut off gas and air when taking place pressure and temperature anomaly, improve the security.

The tempering check valve is characterized by further comprising a gas hose, and the gas hose is connected with the tempering check valve and the three-way joint respectively.

Through adopting above-mentioned technical scheme, the gas hose makes things convenient for being connected of gas device and air device.

Further, the gas device also comprises a gas filter, and the gas filter is arranged between the gas inlet pipe and the gas two-way electromagnetic valve.

Further, the air device further comprises an air filter, and the air filter is installed between the air inlet pipe and the air electromagnetic valve.

Preferably, the air device further comprises an air ball valve installed between the air solenoid valve and the air check valve.

Through adopting above-mentioned technical scheme, air ball valve cuts off the air when overhauing.

Preferably, the gas combustion device further comprises a fixing bottom plate, a fixing support and U-shaped bolts, wherein the fixing support is provided with a plurality of bolt holes corresponding to the U-shaped bolts, the U-shaped bolts are arranged on the bolt holes, and the U-shaped bolts are used for fixing the gas combustion device, the air device and the shock wave device.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model provides a pair of open shock wave soot blower ignition system can effectively prevent to appear "tempering", "mute big gun", explode the not enough, faults such as gas leakage of intensity, open design even there is the gas to leak, the gas gathering can not appear yet, and is safer, guarantees to ignite safely, reliably to realized integrating, modularization, be convenient for overhaul and maintain.

Drawings

FIG. 1 is a front view of an open shock sootblower ignition system;

FIG. 2 is a schematic diagram of an open shock sootblower ignition system;

FIG. 3 is a schematic view of the gas-fired device;

FIG. 4 is a schematic structural view of a shock device;

fig. 5 is a schematic structural view of the air device.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

The gas device, the air device, the shock wave device and the water discharging device are independent parts, modularization is achieved, assembly, maintenance and maintenance are convenient, the whole open shock wave soot blower ignition system is also modularized, installation and control are convenient, and two symmetrical open shock wave soot blower ignition systems can be controlled through one set of control system.

As shown in fig. 1 to 5, an ignition system of an open type shock wave soot blower comprises a fixed bottom plate 61, a fixed bracket 63, a U-shaped bolt 64, a gas device, an air device and a shock wave device; the fixing support 63 is provided with a plurality of bolt holes corresponding to the U-shaped bolts 64, the U-shaped bolts 64 are mounted on the bolt holes, and the U-shaped bolts 64 are used for fixing the gas device, the air device and the shock wave device.

The gas device comprises a gas inlet pipe 11, a gas two-way electromagnetic valve 13, a gas check valve 14 and a tempering check valve 15 which are connected in sequence; the air device comprises an air inlet pipe 21, an air electromagnetic valve 23, an air check valve 25, a three-way joint 26 and a mixed gas check valve 27 which are connected in sequence; the shock wave device comprises a flame arrester 32, a shock wave sending pipe 31 arranged at one end of the flame arrester 32, a spark plug 43 arranged on the shock wave sending pipe 31, a gas mixing pipe 33 arranged at the other end of the flame arrester 32 and a connecting pipe 37 arranged on the gas mixing pipe 33; the back fire check valve 15 is connected to the three-way joint 26 through the gas hose 16, and the mixture check valve 27 is connected to the connection pipe 37. Flame arrestor 32 is a turbulent flame arrestor.

The gas two-way solenoid valve 13 can guarantee the reliable cutting off of gas.

The gas check valve 14 is used for preventing gas from returning, and the backfire check valve 15 is used for preventing backfire, so that double insurance is realized, and the safety is high.

The air check valve 25 prevents the backflow of air, and the mixer check valve prevents the backflow of mixed gas, allowing the gas to flow in one direction.

The gas two-way solenoid valve 13 and the air solenoid valve 23 can control the ratio of gas and air.

The gas hose 16 facilitates connection of the gas appliance to the air appliance.

In some embodiments, a gas leak alarm 51 is further included, and the gas leak alarm 51 is installed at one side of the gas appliance or the shock wave appliance. When gas leakage occurs, the gas leakage alarm 51 detects the gas and controls the gas two-way electromagnetic valve 13 to close, so that the gas is cut off.

In certain embodiments, as shown in fig. 1, 2 and 4, a drain is also included, the drain including a drain pipe 36 and a drain solenoid valve 35 connected to each other, the drain solenoid valve 35 being connected to the flame arrestor 32. The drain solenoid valve 35 is an electric drain valve. A drain ball valve 34 is arranged between the drain electromagnetic valve 35 and the flame arrester 32.

In some embodiments, as shown in fig. 1, 2 and 4, the shockwave device further comprises a temperature sensor 41 and a pressure sensor 42, and both the temperature sensor 41 and the pressure sensor 42 are mounted on the gas mixing pipe 33. When the pressure and the temperature are abnormal, the gas and the air are cut off, and the safety is improved.

In some embodiments, the gas device further comprises a gas filter 12, and the gas filter 12 is installed between the gas inlet pipe 11 and the gas two-way solenoid valve 13.

In some embodiments, the air device further comprises an air filter 22, the air filter 22 being mounted between the air inlet duct 21 and the air solenoid valve 23.

In some embodiments, the air device further comprises an air ball valve 24, the air ball valve 24 being mounted between the air solenoid valve 23 and the air check valve 25. The air ball valve 24 shuts off air during service.

The system adopts an integrated and open design structure and is distributed near each soot blowing point. Generally, one set of ignition device can drag 2 pulse pots and nozzles which are symmetrically distributed. Combustible gas and compressed air respectively enter from the gas inlet pipe 11 and the air inlet pipe 21, are respectively filtered by the gas filter 12 and the air filter 22, and then the proportion of the combustible gas and the compressed air is adjusted by controlling the on-off time of the gas two-way electromagnetic valve 13 and the air electromagnetic valve 23, so as to achieve the air-fuel ratio suitable for ignition and combustion. The mixed gas is stored by the turbulent flow flame arrester 32 and then ignited by the spark plug 43, the shock wave gas after deflagration is flushed out from the shock wave transmitting pipe 31, and then the mixed gas in the pulse tank at the nozzle is detonated to perform shock wave purging on the heat exchange surface.

The system is integrated, modularized, convenient to overhaul and maintain, and safe because gas gathering can not occur even if gas leakage exists in the open design. The gas two-way electromagnetic valve 13 can ensure the reliable cut-off of the gas, the added gas leakage alarm 51 can automatically send out on-site audible and visual alarm and remote system alarm when the gas leakage occurs, the gas two-way electromagnetic valve 13 on the gas inlet pipe 11 is automatically closed through the control system, and the air electromagnetic valve 23 is opened to purge the pipeline. The mixed gas pipe 33 is provided with a pressure sensor 42, and when the pressure of the mixed gas is too low due to insufficient gas source or other pipeline faults, the ignition is stopped and an alarm is given. The water produced by ignition combustion is automatically discharged by opening the water discharge electromagnetic valve 35 after an ignition period is finished, so that the water vapor in the pipeline is prevented from being gathered. The turbulent flame arrester 32 provides sufficient mixed gas for ignition, and the ignited high-speed airflow rushes to the shock wave transmitting pipe 31, so that 'backfire' can be effectively prevented, once 'backfire' occurs, the temperature sensor 41 can timely detect temperature abnormity, and the control system immediately stops ignition and cuts off the gas two-way electromagnetic valve 13 and the air electromagnetic valve 23. The gas check valve 14, the flashback check valve 15, the air check valve 25, and the mixture check valve 27 effectively prevent gas backflow and "flashback". Due to the adoption of a multipoint distributed structure, the fault of a single ignition system does not influence the normal operation of other soot blowing points.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.

Claims

1. An open type shock wave soot blower ignition system is characterized by comprising a gas device, an air device and a shock wave device;

the gas device comprises a gas inlet pipe, a gas two-way electromagnetic valve, a gas check valve and a tempering check valve which are connected in sequence;

the air device comprises an air inlet pipe, an air electromagnetic valve, an air check valve, a three-way joint and a mixed gas check valve which are connected in sequence;

the shock wave device comprises a flame arrester, a shock wave transmitting pipe arranged at one end of the flame arrester, a spark plug arranged on the shock wave transmitting pipe, a gas mixing pipe arranged at the other end of the flame arrester and a connecting pipe arranged on the gas mixing pipe;

the tempering check valve is connected with the three-way joint, and the gas mixture check valve is connected with the connecting pipe.

2. The ignition system of an open shock sootblower of claim 1, further comprising a gas leak alarm mounted on a side of said gas fired device or said shock device.

3. The open shock sootblower ignition system of claim 1, further comprising a drain comprising an interconnected drain pipe and a drain solenoid valve, the drain solenoid valve being connected to the flame arrestor.

4. The ignition system of an open shock sootblower of claim 1, wherein said shock device further comprises a temperature sensor and/or a pressure sensor, both of said temperature sensor and said pressure sensor being mounted on said gas mixing tube.

5. The ignition system of an open shock sootblower of claim 1, further comprising a gas hose connected to said flashback check valve and said tee fitting, respectively.

6. The ignition system of an open type shock wave soot blower of any one of claims 1 to 5, wherein said gas combustion means further comprises a gas combustion filter, said gas combustion filter being installed between said gas combustion inlet pipe and said gas combustion two-way solenoid valve.

7. The ignition system of an open shock sootblower of any of claims 1 to 5, wherein said air device further comprises an air filter mounted between said air inlet duct and said air solenoid valve.

8. The open shock sootblower ignition system of claim 7, wherein said air device further comprises an air ball valve mounted between said air solenoid valve and said air check valve.

9. The ignition system of the open type shock wave soot blower according to any one of claims 1 to 5, further comprising a fixing base plate, a fixing bracket and U-shaped bolts, wherein the fixing bracket is provided with a plurality of bolt holes corresponding to the U-shaped bolts, the U-shaped bolts are mounted on the bolt holes, and the U-shaped bolts are used for fixing the gas device, the air device and the shock wave device.