CN205481045U - Hierarchical discharging equipment of overhead torch system - Google Patents

Abstract

The utility model discloses a hierarchical discharging equipment of overhead torch system mainly comprises a minute fluid reservoir, the gaseous header that travels empty, water sealed tank and overhead torch, it seals to travel empty gaseous header both ends, and its pipe wall coparallel is equipped with one, two or many unloading gas introduction pipes and the two or many gaseous contact tubes that travel empty, every unloading gas introduction pipe all communicates with an independent branch fluid reservoir separately, and every independent branch fluid reservoir has met unloading gas supply pipe again separately, the every gaseous contact tube that travels empty feeds through with an independent water sealed tank separately, and every water sealed tank feeds through with an overhead torch again separately. The utility model discloses a hierarchical technique of discharging has prevented the little load burning simultaneously of flare tip smoldering and a plurality of flare tip, and safe and reliable practices thrift the energy consumption.

Description

A kind of elevated torch system step emission device

Technical field

This utility model belongs to the discharge of petrochemical enterprise imflammable gas and recovery field, relates in particular to A kind of elevated torch system step emission device.

Background technology

It is important that the discharge of petrochemical enterprise imflammable gas and recovery system are to ensure that process unit is kept the safety in production Measure and environmental protection and energy saving measure, due to the difference of discharge back pressure of the imflammable gas of process unit discharge, lead to Multiple exhaust system, i.e. high pressure, low pressure and low low-pressure system often can be set.General high voltage, low pressure, low Press do-nothing system through the separatory tank of respective supporting setting and water sealed tank, enter overhead torch after-combustion emptying.

Along with the maximization of petrochemical enterprise develops, scale and the emptying amount of process unit are increasing, enter And the scale of the torch facility that factory is supporting quantity the most increasing, flare tip gets more and more entirely, the fire of configuration Torch head diameter reaches more than DN1000, even reaches DN2000.One is if multiple emptying gas is all separately provided Independent blowdown system, necessarily causes the quantity of flare tip to increase, and size heterogeneity is relatively big, not only increases Investment, and operation and maintenance management difficulty is bigger, it is impossible to realize the on-bne repair of any one flare tip； Two is that heavy caliber flare tip is susceptible to smoldering phenomenon when process unit low discharge discharge imflammable gas, Not only reduce the service life of flare tip, and there is security risk；Three is that multiple emptying gas the most individually sets Put independent blowdown system, the operating mode of multiple flare tip Smaller load burning simultaneously will necessarily occur, not only waste Resource, uneconomical energy-conservation, decrease the service life of flare tip, and there is potential safety hazard.

Utility model content

Shortcoming that is short in order to solve the service life of the flare tip that prior art exists, that there is potential safety hazard, this Utility model provides a kind of elevated torch system step emission device.

The elevated torch system step emission device that this utility model provides mainly is converged by separatory tank, emptying gas Pipe, water sealed tank and overhead torch composition；Emptying gas header closed at both ends, on its tube wall parallel be provided with one, Two or many emptying gas ingress pipes and two or many emptying gas delivery lines；Every emptying gas imports Managing each independent with one separatory tank to connect, it is defeated that each independent separatory tank is the most each connected to emptying gas Send pipe；Each independent with one water sealed tank of every emptying gas delivery line connects, and each water sealed tank is the most respective Connect with an overhead torch；Emptying gas conveying pipe, separatory tank, emptying gas ingress pipe, emptying gas Header, emptying gas delivery line, water sealed tank and overhead torch are sequentially communicated, and constitute emptying gas passage.

Described emptying gas header diameter determines according to flare vent system drop requirements, and its pipe section amasss Preferably equal to or greater than each emptying gas ingress pipe pipe section amasss sum.

Described water sealed tank each has different water seal heights, and effective water seal height is preferably 400～1200mm, To play the purpose of grading control emptying gas discharge.

This utility model compared with prior art, has the advantage that employing step emission technology, optimizes The configuration of flare system, concise in technology, at multiply high pressure emptying gas, lp venting gas respectively by putting Emptying gas header is set after vacant duct and separatory tank, then according to the build pressure height of emptying gas the most successively Automatically it is vented after entering the burning of each overhead torch after breaking through the water seal of corresponding water sealed tank, not only prevent torch The Smaller load burning simultaneously of head smoldering and multiple flare tip, safe and reliable, energy efficient, especially can reduce large-scale The scale of enterprise's torch facility and investment, have certain safety, advance and economy.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of this utility model elevated torch system step emission device.

In figure: number high pressure emptying gas conveying pipe of 1-, number high pressure separatory tank of 2-, No. bis-high pressure of 3-are dropped a hint Body conveying pipe, No. bis-high pressure separatory tanks of 4-, number lp venting air shooter of 5-, number low pressure separatory of 6- Tank, No. bis-lp venting air shooters of 7-, No. bis-low pressure separatory tanks of 8-, 9-emptying gas header, 10-mono- Level water sealed tank, bis-grades of water sealed tanks of 11-, 12-tertiary effluent sealed cans, 13-one-level overhead torch, 14-bis-grades is overhead Torch, tri-grades of overhead torch of 15-, number high pressure emptying gas ingress pipe of 16-, No. bis-high pressure emptying gas of 17- Ingress pipe, number lp venting gas introduction tube of 18-, No. bis-lp venting gas introduction tubes of 19-, 20-one-level Emptying gas delivery line, bis-grades of emptying gas delivery lines of 21-, tri-grades of emptying gas delivery lines of 22-.

Detailed description of the invention

With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings, but does not limit Make protection domain of the present utility model.

Fig. 1 gives a kind of embodiment of the present utility model, as seen from the figure: the height that this utility model provides Frame flare system step emission device is mainly by four separatory tanks, 9, three water sealed tanks of an emptying gas header With three overhead torch compositions；Emptying gas header 9 closed at both ends, parallel on its tube wall is provided with 4 emptying Gas introduction tube and 3 emptying gas delivery lines；4 emptying gas ingress pipes are respectively as follows: a high pressure emptying Gas introduction tube 17, lp venting gas introduction tube 18 and of 16, No. two high pressure emptying gas ingress pipes No. two lp venting gas introduction tubes 19.3 emptying gas delivery lines are respectively as follows: one-level emptying gas is derived 20, two grades of emptying gas delivery lines 21 of pipe and three grades of emptying gas delivery lines 22.

With emptying gas header 9 as boundary, constitute 4 emptying gas passages on the left of it, be respectively as follows: by No. one high Press air body conveying 1, high pressure separatory tank 2 of pipe and a high pressure emptying gas ingress pipe 16 connects successively The logical high pressure emptying gas passage constituted；By No. two high pressure emptying gas conveying 3, No. two high pressure separatory of pipe Tank 4 and No. two high pressure emptying gas ingress pipes 17 are sequentially communicated No. two high pressure emptying gas passages of composition；By 5, low pressure separatory tank 6 of a number lp venting air shooter and a lp venting gas introduction tube 18 It is sequentially communicated a lp venting gas passage of composition；Low by No. two lp venting air shooters 7, two Pressure separatory tank 8 and No. two lp venting gas introduction tubes 19 are sequentially communicated No. two lp venting gases of composition and lead to Road.

Constitute 3 emptying gas passages on the right side of emptying gas header 9, be respectively as follows: and derived by one-level emptying gas Pipe 20, one-level water sealed tank 10 and one-level overhead torch 13 are sequentially communicated the one-level emptying gas passage of composition； It is sequentially communicated by 21, two grades of water sealed tanks 11 of two grades of emptying gas delivery lines and two grades of overhead torch 14 and to constitute Two grades of emptying gas passages；By three grades of emptying gas delivery lines 22, tertiary effluent sealed cans 12 and three grades of overhead torch The 15 three grades of emptying gas passages being sequentially communicated composition.

4 emptying gas passages on the left of emptying gas header 9 and 3 emptying gas passages on the right side of it lead to Cross emptying gas header 9 to communicate with each other and constitute complete emptying gas passage.The pipeline of emptying gas header 9 Sectional area amasss sum more than or equal to each emptying gas ingress pipe pipe section.

The chresard of above-mentioned each water sealed tank should be able to meet the topping up of water sealed tank suction line standpipe 3m level above Amount, effective water seal height is preferably 400～1200mm, preferably effectively water seal height be followed successively by 600～800mm, 800～1000mm, 1000～1200mm.Effective water seal height of one-level water sealed tank 10 is 600mm, two grades Effective water seal height of water sealed tank 11 is 800mm, and effective water seal height of tertiary effluent sealed cans 12 is 1000mm.

Certainly, above-mentioned emptying gas ingress pipe can be adjusted according to actual needs, can be set to 1 also Can be set to 2～8, emptying gas delivery line can be set to 2～8 as required, the most just may make up and puts The overhead torch step emission device that air body number of active lanes is different.

Work process of the present utility model shown in Fig. 1 is:

A) the high pressure emptying gas of process unit discharge respectively through by high pressure emptying gas conveying pipe 1, A number high pressure separatory tank 2 and high pressure emptying gas ingress pipe 16 are sequentially communicated a high pressure emptying of composition Gas passage and being dropped a hint by No. two high pressure emptying gas conveying 3, No. two high pressure separatory tanks 4 of pipe and No. two high pressure Body ingress pipe 17 is sequentially communicated No. two high pressure emptying gas passages of composition and enters emptying gas header 9；Technique The lp venting gas of device discharge is respectively through by 5, low pressure separatory of a lp venting air shooter Tank 6 and lp venting gas introduction tube 18 be sequentially communicated composition a lp venting gas passage and by 7, No. two low pressure separatory tanks 8 of No. two lp venting air shooters and No. two lp venting gas introduction tubes 19 No. two lp venting gas passages being sequentially communicated composition enter emptying gas header 9.

B) starting to be vented the stage at process unit, in emptying gas header 9, emptying gas pressure gradually rises, When rising to 6KPa (G), enter one-level overhead torch 13 after breaking through the water seal of one-level water sealed tank 10 and process； Along with being gradually increased of emptying amount, in emptying gas header 9, emptying gas pressure also gradually rises, and works as emptying When amount reaches the disposal ability of one-level overhead torch 10, in emptying gas header 9, emptying gas pressure rises to 8KPa (G), now emptying gas will break through the water seal of two grades of water sealed tanks 11, and a part of emptying gas enters two Level overhead torch 14 processes；The rest may be inferred.

C) terminating the emptying stage at process unit, in emptying gas header 9, emptying gas pressure is gradually lowered, When being down to 10KPa (G), emptying gas cannot break through the water seal of tertiary effluent sealed cans 12, corresponding three grades overhead Torch 15 automatic distinguishing；Along with being gradually reduced of emptying amount, in emptying gas header 9, emptying gas pressure is also Being gradually lowered, when in emptying gas header 9, emptying gas pressure is down to 8KPa (G), emptying gas cannot Break through the water seal of two grades of water sealed tanks 11, corresponding two grades of overhead torch 14 automatic distinguishings；The rest may be inferred.

Claims (3)

1. an elevated torch system step emission device, it is characterised in that: main by separatory tank, drop a hint Body header, water sealed tank and overhead torch composition；Emptying gas header closed at both ends, parallel on its tube wall is provided with One, two or many emptying gas ingress pipes and two or many emptying gas delivery lines；Drop a hint for every Each independent with one the separatory tank of body ingress pipe connects, and each independent separatory tank is the most each connected to emptying Air shooter；Each independent with one water sealed tank of every emptying gas delivery line connects, each water sealed tank Each connect with an overhead torch again；Emptying gas carries pipe, separatory tank, emptying gas ingress pipe, puts Air body header, emptying gas delivery line, water sealed tank and overhead torch are sequentially communicated, and constitute emptying gas and lead to Road.

Device the most according to claim 1, it is characterised in that: described emptying gas header pipeline cuts Area amasss sum more than or equal to each emptying gas ingress pipe pipe section.

Device the most according to claim 1, it is characterised in that: described water sealed tank each has difference Water seal height.