CN207804826U

CN207804826U - A kind of explosion suppression system applied widely

Info

Publication number: CN207804826U
Application number: CN201721663900.XU
Authority: CN
Inventors: 魏鹏翔
Original assignee: Zhengzhou Zhongtai Bianco Powder Technology Co Ltd
Current assignee: Zhengzhou Zhongtai Bianco Powder Technology Co Ltd
Priority date: 2017-12-04
Filing date: 2017-12-04
Publication date: 2018-09-04
Anticipated expiration: 2027-12-04

Abstract

The utility model discloses a kind of dust explosion suppression device, especially a kind of explosion suppression system applied widely.The utility model includes inner tube, said inner tube includes the gas access being sequentially communicated, interlude and gas vent, and the gas vent section is connected to gas reception device, and outer tube is arranged with outside said inner tube, it is cavity between the outer tube and inner tube, water is filled in the cavity.The utility model it is datonation-inhibition simple in structure, electronic device is used only as auxiliary device, will not lead to not because of service interruption or inductor ineffective equal individual parts error datonation-inhibition, while reflection is exceedingly fast, and does not have any delay.

Description

A kind of explosion suppression system applied widely

Technical field

The utility model is related to a kind of dust explosion suppression device, especially a kind of explosion suppression system applied widely.

Background technology

Dust explosion refers to combustible dust within the scope of explosion limit, encounters heat source (open fire or high temperature), and flame moment passes It is sowed at entire mixed dust space, chemical reaction velocity is exceedingly fast, while discharging a large amount of heat, forms very high temperature and prodigious Pressure, the energy of system are converted into the radiation of mechanical energy and light and heat, have very strong destructive power.

In the industrial production, it usually needs by dust by pipeline, if combustible dust is with concentration appropriate at this time It suspends in air, forms dust cloud, while having sufficient air and oxidant, it is easy to cause dust explosion, therefore usually It is designed with explosion suppression device.

After existing explosion suppression device generally use sensor detection, explosion suppressor is transmitted a signal to by electric wire, is then pressed down Quick-fried device progress is datonation-inhibition, is either directly separated by partition board but the former is after situation occur in sensor or electric wire etc., explosion suppressor is then It can not work, and general operating mode is complex, which, which cannot can be regarded as, to occur；Even if the latter's partition board separates, partition board itself The high temperature of the gas separated may be passed, light, make to which the dusty gas not being ignited behind partition board will be fired It is invalid to separate.

Since operating mode is complex in actual use, it is sometimes necessary to work, and pass under some narrow, narrow environment Explosion suppressor unite due to Explosion suppressant to be loaded so that it has certain occupancy volume, causes to conflict with environment.

Utility model content

The purpose of this utility model is that：In view of the above-mentioned problems, the utility model provides and a kind of not using electronic equipment The datonation-inhibition datonation-inhibition connecting tube of progress applied widely.

The technical solution adopted in the utility model is as follows：

A kind of explosion suppression system applied widely, including inner tube, said inner tube include the gas access being sequentially communicated, centre Section and gas vent, the gas vent are connected to gas reception device, and said inner tube is arranged with outer tube outside, the outer tube with it is interior It is cavity between pipe, water is filled in the cavity；

Outer tube is connected to the water outlet of water circulating pump, and the water inlet that outer tube is connected to water circulating pump by circulating water pipe is connected to, The circulating water pipe is communicated with water tank；

The interlude includes the linkage section that multistage is sequentially coaxially connected to, and the linkage section includes the entrance being sequentially communicated Section, contraction section, throat, diffuser and outlet section, the throat are connected to cavity by through-hole；

Further include the rupture disk being arranged in throat, the rupture disk includes whippletree and outwardly protrudes to be formed along whippletree bottom surface Catch, the both ends of the whippletree are inserted into the wall surface of throat, and the catch is halfround bar slice type, the diameter of catch and throat it is interior Diameter is equal, and the top of catch convexes to form covering part axially outward along catch, and covering part is fitted in the inner wall of throat and by through-hole Covering.

Preferably, it is provided with pressure sensor in the water circulating pump.

Preferably, the pressure sensor is electrically connected with warning device.

Preferably, the covering part and the binding face of throat's inner wall are provided with rubber pad.

In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：

A kind of explosion suppression system applied widely in the utility model, the very fast expansion of gas after itself explodes are primary to rush It is started to shrink at after hitting, and it is slower for shock velocity with flame gas phase, and at this time due to Venturi effect, band flame gas is in throat Speed compared to being become faster in other pipelines, while the air pressure of throat declines, and the pressure difference between throat and cavity obtains at this time It is further promoted, so that the ejection time of water is shorter, effectiveness of explosion suppression is more preferable.

The wall surface in throat is arranged in a kind of explosion suppression system applied widely in the utility model, through-hole so that inner tube Need not turn, dusty gas can a line reach home, for normal operation, energy loss can be greatly reduced, although quick-fried Fragmentation has blocked a part, but less compared to direct turn energy loss.

A kind of explosion suppression system applied widely in the utility model, cavity is interior to be filled with water so that the outer wall of inner tube It is wrapped in water, certain cooling can be carried out to inner tube so that its temperature is less easy to reach demolition point, while working as powder Dust explosion occur after, after inner tube is blown an openning, extraneous air due to water in outer tube and cavity isolation can not with it is quick-fried Fried gas contact, band flame gas can not also be leaked to the external world.

A kind of explosion suppression system applied widely in the utility model, by setting outer tube in inner tube peripheral hardware so that be not required to Special explosion suppressor is set again, due to needing a constant volume to fill Explosion suppressant in explosion suppressor so that it needs certain volume Size can cause certain protrusion outside inner tube, when entire pipe needs to be used in the operating modes complex environment such as long and narrow, narrow, It then needs to consider conflicting for explosion suppressor volume and environment；It is arranged by inner and outer pipes, simply increases caliber, is solved protrusion and lead The problem of cause and environmental warfare.

A kind of explosion suppression system applied widely in the utility model, the setting by circulating water pipe and water circulating pump Continue continue working so that outer tube and circulating water pipe form a closed cycle, and water flows wherein, can pass through heat convection Mode persistently exchange heat to inner tube, good effect of heat exchange so that inner tube can be continuously maintained at work one it is hypothermal Temperature, while preventing difference variation excessive generation caused by changing due to operating mode from expanding with heat and contract with cold, to prevent inner tube due to It expands with heat and contract with cold and leads to the problem of notch.

A kind of explosion suppression system applied widely in the utility model, due to Bernoulli equation it can be seen that, when in cavity Water when flowing to linkage section, in the outside of throat since sectional area increases so that flow velocity declines, and the pressure of water increases, throat with Pressure difference between cavity is further promoted, so that the ejection time of water is shorter, effectiveness of explosion suppression is more preferable.

A kind of explosion suppression system applied widely in the utility model, due to connecting successively equipped with multiple linkage sections in pipe It is logical so that rupture disk can be bonded throat in different directions, and the rupture disk of multilayer setting can effectively absorb explosion gas Impact force prevents it from destroying inner tube, while being also prevented from air blast weaker caused by the uncertainty due to demolition point Can not destroy by rush of water not with demolition point the same altitude line rupture disk so that it is total there are one or multiple rupture disks being capable of normal work Make, generates datonation-inhibition.

A kind of explosion suppression system applied widely in the utility model, the whippletree of rupture disk are inserted into the wall surface of throat, make It obtains rupture disk and is stuck in throat, while covering part is bonded with the inner wall of throat so that rupture disk is by three directions from throat Power, this so that rupture disk is very firm when not destroyed, will not because of dusty gas skim over cause covering part fitting not Surely；And when dust explosion, the part that whippletree is inserted into throat's wall surface is directly torn with the junction for being not inserted into part, covering part Itself is also by from the further draught head of upper and lower gas, to directly be bounced, with catch blown together it is winged.

A kind of explosion suppression system applied widely in the utility model, datonation-inhibition simple in structure, the electronic device of the present apparatus Be used only as auxiliary device, will not lead to not because of service interruption or inductor ineffective equal individual parts error it is datonation-inhibition, Reflection is exceedingly fast simultaneously, does not have any delay.

Description of the drawings

Fig. 1 is the utility model structure chart；

Fig. 2 is the rearview of the rupture disk of the utility model；

Fig. 3 is the side view of the rupture disk of the utility model；

It is marked in figure：1- entrances；2- rupture disks；21- whippletrees；22- covering parts；23- catch；3- throats；4- outlet sections； 5- diffusers；6- warning devices；7- pressure sensors；8- outer tubes；9- through-holes；10- contraction sections；11- inner tubes；12- cavitys；13- Water circulating pump；14- gas reception devices；15- circulating water pipes；16- linkage sections；The gas accesses 17-；18- gas vents；19- is stored up Water tank.

Specific implementation mode

All features disclosed in this specification can be with any other than mutually exclusive feature and/or step Mode combines.

Embodiment one

Shown in the present embodiment combination Fig. 1, Fig. 2 and Fig. 3, a kind of explosion suppression system applied widely, including inner tube 11, it is described Inner tube 11 includes gas access 17, interlude and the gas vent 18 being sequentially communicated, and the gas vent 18 is received with gas and filled 14 connections are set, outer tube 8 is arranged with outside said inner tube 11, is cavity 12 between the outer tube 8 and inner tube 11, is filled out in the cavity 12 Filled with water；

Outer tube 8 is connected to the water outlet of water circulating pump 13, and outer tube 8 enters water by the connection water circulating pump 13 of circulating water pipe 15 Mouth connection, the circulating water pipe 15 are communicated with water tank 19；

The interlude includes the linkage section 16 that multistage is sequentially coaxially connected to, and the linkage section 16 enters including what is be sequentially communicated Mouth section 1, contraction section 10, throat 3, diffuser 5 and outlet section 4, the throat 3 pass through through-hole 9 and are connected to cavity 12；

Further include the rupture disk 2 being arranged in throat 3, the rupture disk 2 includes whippletree 21 and outside along 21 bottom surface of whippletree The catch 23 formed is protruded, the wall surface of throat 3 is inserted at the both ends of the whippletree 21, and the catch 23 is halfround bar slice type, catch 23 diameter is equal with the internal diameter of throat 3, and the top of catch 23 convexes to form covering part 22, covering part axially outward along catch 23 22 are fitted in the inner wall of throat 3 and cover through-hole 9.

In use, dusty gas passes sequentially through entrance 1, contraction section 10, throat 3,5 and of diffuser by pipeline Left after outlet section 4, when dust in pipe explosion time, high temperature and impact extremely strong gas can be generated moment in pipe, due to The effect of contraction section 10, throat 3 and diffuser 5 so that the gas is further up in the speed of throat 3, directly by rupture disk 2 Rush broken, through-hole 9 is opened, and the instant water in outer tube 8 sprays into, and forms water mist, carries out certain cooling, while passing through that adsorb etc. will Dust settling in explosion gas gets off, to generating datonation-inhibition effect in pipe.

The very fast expansion of gas after itself explodes starts to shrink at after one-shot, and with flame gas phase for shock velocity It is relatively slow, due to Venturi effect, compares in the speed of throat 3 with flame gas and become faster in other pipelines, while the gas of throat 3 Drops, the pressure difference between throat 3 and cavity 12 is further promoted at this time, so that the ejection time of water is shorter, suppression Quick-fried effect is more preferable.

The wall surface in throat 3 is arranged in through-hole 9 so that inner tube 11 need not turn, and dusty gas being capable of a line arrival end Point can greatly reduce energy loss for normal operation, although rupture disk 2 has blocked a part, compare direct turn energy It is lost less.

Water is filled in cavity 12 so that the outer wall of inner tube 11 is wrapped in water, can be carried out to inner tube 11 certain Cooling so that its temperature is less easy to reach demolition point, while after dust explosion occurs, inner tube 11 is blown an openning Afterwards, extraneous air can not be contacted with explosion gas due to the isolation of water in outer tube 8 and cavity 12, and band flame gas can not also be revealed To the external world.

By the way that outer tube 8 is arranged outside inner tube 11 so that special explosion suppressor need not be arranged again, due to being needed in explosion suppressor One constant volume fills Explosion suppressant so that it needs certain volume size, certain protrusion can be caused outside inner tube 11, when entire When pipe needs to be used in the operating modes complex environment such as long and narrow, narrow, then need to consider conflicting for explosion suppressor volume and environment；Pass through Inner and outer pipes 8 are arranged, and simply increase caliber, solve the problems, such as that protrusion causes and environmental warfare.

Continue continue working by the setting of circulating water pipe 15 and water circulating pump 13 so that outer tube 8 and circulating water pipe 15 A closed cycle is formed, water flows wherein, can persistently exchange heat to inner tube 11 by way of heat convection, heat transfer effect It is good so that inner tube 11 can be continuously maintained in a hypothermal temperature at work, while prevent from leading due to operating mode variation The excessive generation of difference variation of cause is expanded with heat and contract with cold, to prevent inner tube 11 to lead to the problem of notch due to expanding with heat and contract with cold.

Due to Bernoulli equation it can be seen that, when the water in cavity 12 flows to linkage section 16, the outside of throat 3 due to cut Area increases so that and flow velocity declines, and the pressure of water increases, and the pressure difference between throat 3 and cavity 12 is further promoted, to So that the ejection time of water is shorter, effectiveness of explosion suppression is more preferable.

Due to being sequentially communicated equipped with multiple linkage sections 16 in pipe so that rupture disk 2 can be bonded throat in different directions 3, the rupture disk 2 of multilayer setting can effectively absorb the impact force of explosion gas, prevent it from destroying inner tube 11, while can also prevent Only weaker air blast caused by the uncertainty due to demolition point can not destroy by rush of water not with demolition point in the same altitude line Rupture disk 2 so that there are one total or multiple rupture disks 2 can work normally, and generate datonation-inhibition.

The whippletree 21 of rupture disk 2 is inserted into the wall surface of throat 3 so that rupture disk 2 is stuck in throat 3, while covering part 22 and larynx The inner wall in portion 3 is bonded so that for rupture disk 2 by the power in three directions from throat 3, this makes rupture disk 2 be destroyed not Shi Shifen is firm, covering part 22 will not be caused to be bonded shakiness because of skimming over for dusty gas；And when dust explosion, whippletree 21 is inserted The part for entering 3 wall surface of throat is directly torn with the junction for being not inserted into part, and covering part 22 itself is also by from upper pushing The further pressure difference of power, to directly being bounced, with catch 23 blown together it is winged.

The present apparatus it is datonation-inhibition simple in structure, electronic device is used only as auxiliary device, even if because of service interruption or inductor Ineffective equal individual parts error will not lead to not datonation-inhibition, while reflection is exceedingly fast, and does not have any delay.

Embodiment two

The present embodiment is further improved based on embodiment 1, as shown in Figure 1, being provided with pressure in the water circulating pump 13 Sensor 7.

In use, by the way that pressure sensor 7 is arranged in water circulating pump 13 so that when water in water circulating pump 13 When flow reduces, pressure sensor 7 can detect at the first time.

Embodiment three

The present embodiment is further improved based on embodiment 2, as shown in Figure 1, the pressure sensor 7 is electrically connected with report Alarm device 6.

In use, 7 first time of pressure sensor detect the flow in water circulating pump 13 reduce after, just should Signal is transmitted to warning device 6, and warning device 6 first time alert notice people evacuation opens simultaneously water tank 19, prevents recirculated water Water in pump 13 is finished can not be datonation-inhibition.

, when not having that dust explosion and 8 leak of outer tube occurs, people couple can also be notified usually by detection flows It is overhauled, and the device can not use when preventing disaster from occurring.

Example IV

The present embodiment is based on any one of embodiment 1-3 and is further improved, as shown in Figure 1, the covering part 22 with The binding face of 3 inner wall of throat is provided with rubber pad.

In use, by the way that rubber pad is arranged so that the water in cavity 12 can be fully sealed, and not will produce leakage Phenomena such as water, prevents effectiveness of explosion suppression from having a greatly reduced quality, and blocking when normal work to inner tube 11.

It is the embodiments of the present invention as described above.The utility model is not limited to the above embodiment, anyone It should learn the structure change made under the enlightenment of the utility model, it is every that there is same or similar skill with the utility model Art scheme, each falls within the scope of protection of the utility model.

Claims

1. a kind of explosion suppression system applied widely, including inner tube (11), said inner tube (11) includes that the gas being sequentially communicated enters Mouth (17), interlude and gas vent (18), the gas vent (18) are connected to gas reception device (14), and feature exists In：It is arranged with outer tube (8) outside said inner tube (11), is cavity (12), the cavity between the outer tube (8) and inner tube (11) (12) water is filled in；

Outer tube (8) is connected to the water outlet of water circulating pump (13), and outer tube (8) is connected to water circulating pump (13) by circulating water pipe (15) Water inlet connection, the circulating water pipe (15) is communicated with water tank (19)；

The interlude includes the linkage section (16) that multistage is sequentially coaxially connected to, and the linkage section (16) includes entering of being sequentially communicated Mouth section (1), contraction section (10), throat (3), diffuser (5) and outlet section (4), the throat (3) pass through through-hole (9) and are connected to sky Chamber (12)；

Further include that rupture disk (2) in throat (3) is set, the rupture disk (2) includes whippletree (21) and along whippletree (21) bottom The catch (23) that protrusion is formed is faced out, the wall surface of throat (3) is inserted at the both ends of the whippletree (21), and the catch (23) is The diameter of halfround bar slice type, catch (23) is equal with the internal diameter of throat (3), and the top of catch (23) is convex axially outward along catch (23) It rises and forms covering part (22), covering part (22) is fitted in the inner wall of throat (3) and covers through-hole (9).

2. a kind of explosion suppression system applied widely according to claim 1, it is characterised in that：The water circulating pump (13) Inside it is provided with pressure sensor (7).

3. a kind of explosion suppression system applied widely according to claim 2, it is characterised in that：The pressure sensor (7) it is electrically connected with warning device (6).

4. a kind of explosion suppression system applied widely according to claim 1, it is characterised in that：The covering part (22) with The binding face of throat (3) inner wall is provided with rubber pad.