CN207539511U - A kind of datonation-inhibition connecting tube applied widely - Google Patents

Abstract

The utility model discloses a kind of dust explosion suppression device, particularly a kind of datonation-inhibition connecting tube applied widely.The utility model includes outer tube, and the outer tube is provided at both ends with flange, inner tube is coaxially arranged in the outer tube, is cavity between the outer tube and inner tube, water is filled in the cavity；Said inner tube includes the entrance, contraction section, throat, diffuser and the outlet section that are sequentially communicated, and the throat connects cavity by through-hole.The utility model it is datonation-inhibition simple in structure, electronic device is used only as auxiliary device, though because service interruption or inductor it is ineffective wait individual parts error will not lead to not it is datonation-inhibition, while reflection be exceedingly fast, do not have any delay.

Description

A kind of datonation-inhibition connecting tube applied widely

Technical field

The utility model is related to a kind of dust explosion suppression device, particularly a kind of datonation-inhibition connecting tube applied widely.

Background technology

Dust explosion refers to combustible dust in the range of explosion limit, encounters heat source (open fire or high temperature), and flame moment passes Entire mixed dust space is sowed at, chemical reaction velocity is exceedingly fast, while discharges a large amount of heat, forms very high temperature and very big 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 appropriate concentration at this time It suspends in air, forms dust cloud, while have 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 carry out it is datonation-inhibition 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 is in itself The high temperature of the gas separated may be passed, light, make so as 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 offer is a kind of not to use 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 datonation-inhibition connecting tube applied widely, including outer tube, the outer tube is provided at both ends with flange, the outer tube Inner tube is inside coaxially arranged with, is cavity between the outer tube and inner tube, water is filled in the cavity；

Said inner tube includes the entrance, contraction section, throat, diffuser and the outlet section that are sequentially communicated, and the throat passes through Through-hole connects cavity；

The rupture disk being arranged in throat is further included, 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 cavity.

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 beneficial effects of the utility model are：

A kind of datonation-inhibition connecting tube applied widely in the utility model, the very fast expansion of gas after itself explodes, once It is started to shrink at after impact, and it is slower for shock velocity with flame gas phase, due to Venturi effect, with flame gas in throat Speed in other pipelines compared to becoming faster, while the air pressure of throat declines, at this time the pressure difference between throat and cavity obtain into One step is promoted, so that the ejection time of water is shorter, effectiveness of explosion suppression is more preferable.

A kind of datonation-inhibition connecting tube applied widely in the utility model, through-hole are arranged on the wall surface of throat so that interior Pipe does not need to turn, dusty gas can a line reach home, for normal operation, energy loss can be greatly reduced, although Rupture disk has blocked a part, but less compared to direct turn energy loss.

A kind of datonation-inhibition connecting tube applied widely in the utility model, cavity is interior to be filled with water so that outside inner tube Wall is wrapped in water, and certain cooling can be carried out to inner tube so that its temperature less easily reaches demolition point, works as simultaneously After dust explosion occurs, after inner tube is blown an openning, extraneous air can not be with due to the isolation of water in outer tube and cavity Explosion gas contacts, and band flame gas can not also be leaked to the external world.

A kind of datonation-inhibition connecting tube applied widely in the utility model, by putting outer tube in inner tube peripheral hardware so that no It needs to set special explosion suppressor again, since a constant volume being needed to fill Explosion suppressant in explosion suppressor so that it needs certain body Product 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 When, then it needs to consider conflicting for explosion suppressor volume and environment；It is set by inner and outer pipes, simply increases caliber, solved convex Rising causes and the problem of environmental warfare.

A kind of datonation-inhibition connecting tube applied widely in the utility model, the setting of rupture disk can effectively absorb explosion The impact force of gas prevents it from destroying inner tube；The whippletree of rupture disk is inserted into the wall surface of throat so that rupture disk is stuck in throat, together When covering part be bonded with the inner wall of throat so that for rupture disk by the power in three directions from throat, this causes rupture disk to exist It is very firm when not destroyed, covering part fitting will not be caused unstable because of skimming over for dusty gas；And when dust explosion, it is horizontal The part that thick stick is inserted into throat's wall surface is directly torn with being not inserted into the junction of part, and covering part is in itself also by from upper and lower gas The further pressure differential of body, so as to directly being bounced, with catch blown together it is winged.

A kind of datonation-inhibition connecting tube applied widely in the utility model, datonation-inhibition simple in structure, the electronics dress of the present apparatus It puts and is used only as auxiliary device, even if because service interruption or the ineffective grade individual parts error of inductor will not lead to not press down It is quick-fried, while reflection is exceedingly fast, and 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.

Specific embodiment

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 datonation-inhibition connecting tube applied widely, including outer tube 8, institute The flange that is provided at both ends with of outer tube 8 is stated, inner tube 11 is coaxially arranged in the outer tube 8, is empty between the outer tube 8 and inner tube 11 Chamber 12, the cavity 12 is interior to be filled with water；

Said inner tube 11 includes the entrance 1, contraction section 10, throat 3, diffuser 5 and the outlet section 4 that are sequentially communicated, described Throat 3 connects cavity 12 by through-hole 9；

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 Protrude the catch 23 formed, 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 passes 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 is started to shrink at after one-shot, and with flame gas phase for shock velocity It is relatively slow, due to Venturi effect, compare in the speed of throat 3 with flame gas and become faster, while the gas of throat 3 in other pipelines 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.

Through-hole 9 is arranged on the wall surface of throat 3 so that inner tube 11 does not need to turn, and dusty gas being capable of a line arrival end Point for normal operation, can greatly reduce energy loss, 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 less easily reaches demolition point, while after dust explosion occurs, and 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 setting outer tube 8 outside inner tube 11 so that do not need to set special explosion suppressor again, due to needing 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 Pipe needs to be used in long and narrow, narrow when operating modes complex environment, then needs to consider conflicting for explosion suppressor volume and environment；Pass through Inner and outer pipes 8 are set, and simply increase caliber, solve the problems, such as that protrusion causes and environmental warfare.

The setting of rupture disk 2 can effectively absorb the impact force of explosion gas, prevent it from destroying inner tube 11；Rupture disk 2 Whippletree 21 is inserted into the wall surface of throat 3 so that rupture disk 2 is stuck in throat 3, while covering part 22 is bonded with the inner wall of throat 3 so that For rupture disk 2 by the power in three directions from throat 3, this so that rupture disk 2 is very firm when not destroyed, will not be because of Skimming over for dusty gas causes covering part 22 to be bonded shakiness；And when dust explosion, whippletree 21 be inserted into the part of throat 3 wall surface with The junction for being not inserted into part is directly torn, covering part 22 itself also by from the further pressure differential of two-way pressure, So as 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 It is ineffective wait individual parts error will not lead to not it is datonation-inhibition, while reflection be exceedingly fast, do 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 sensing in the cavity 12 Device 7.

In use, pass through the setting pressure sensor 7 in cavity 12 so that after the water in cavity 12 is released, When pressure drastically declines, 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, after the pressure that 7 first time of pressure sensor detects in cavity 12 drastically declines, just should Signal is transmitted to warning device 6, warning device 6 first time alert notice people evacuation, while can also tell which length of tubing people is Detonation.

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 setting rubber pad so that the water in cavity 12 can be fully sealed, and will not generate leakage Phenomena such as water, to the blocking of inner tube 11 when preventing effectiveness of explosion suppression from having a greatly reduced quality and working normally.

It is the embodiment of the utility model 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 (4)

1. a kind of datonation-inhibition connecting tube applied widely, including outer tube (8), the outer tube (8) is provided at both ends with flange, spy Sign is：Inner tube (11) is coaxially arranged in the outer tube (8), is cavity (12) between the outer tube (8) and inner tube (11), institute It states in cavity (12) filled with water；

Said inner tube (11) includes the entrance (1), contraction section (10), throat (3), diffuser (5) and the outlet section that are sequentially communicated (4), the throat (3) connects cavity (12) by through-hole (9)；

Further include the rupture disk (2) being arranged in throat (3), the rupture disk (2) is including 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 Halfround bar slice type, the diameter of 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 datonation-inhibition connecting tube applied widely according to claim 1, it is characterised in that：In the cavity (12) It is provided with pressure sensor (7).

3. a kind of datonation-inhibition connecting tube 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 datonation-inhibition connecting tube applied widely according to claim 1, it is characterised in that：The covering part (22) The binding face of throat (3) inner wall is provided with rubber pad.