CN201521972U

CN201521972U - Burner switch system

Info

Publication number: CN201521972U
Application number: CN2009202084415U
Authority: CN
Inventors: 李静如
Original assignee: Shanghai Kentex Int'l & Engineering Corp
Current assignee: Shanghai Kentex Int'l & Engineering Corp
Priority date: 2009-08-26
Filing date: 2009-08-26
Publication date: 2010-07-07
Anticipated expiration: 2019-08-26

Abstract

The utility model discloses a burner switch system. The burner switch system comprises an overhead torch burner, a ground torch burner, and a switch device connected with two burners. The burner switch system is characterized in that the switch device includes a flowmeter positioned on a torch gas exhaust pipe, and a valve in linkage fit with the flowmeter. The burner switch system can effectively improve the safety performance of the torch burners, and can achieve the effective switching between the overhead torch burner and the ground torch burner according to the change of discharge amount of torch gas, thereby effectively ensuring safe and complete combustion of the torch gas instantly, and effectively achieving the functions of the safety, protecting environment and reducing emission.

Description

The burner switched system

Affiliated technical field

The utility model relates to a kind of burner switched system, the switching device shifter safety that especially a kind of petrochemical industry is used, anti-backfire high-altitude and ground flare burner.

Background technology

Commonly used, traditional at present burner or ground flare burner, or adopt installing flare tower frame combustion head to be delivered to the high-altitude mix flare burner in high-altitude, 60 meters left and right sides, but because the discharging of torch gas is not a rule completely, its discharge capacity size is indefinite, even suddenly big or suddenly small.In the past,,, then caused it can not break through water seal in the water sealed tank, thereby caused tempering, phenomenon such as smoulder, brought very big potential safety hazard if torch gas discharge capacity reduces if when adopting the high-altitude mix flare burner merely; At this moment, if can in time switch to the ground flare burner and burn, then must reduce the potential safety hazard that waste gas brought of the overhead torch burning low discharge of light pollution that the long-term discharging of overhead torch caused and unusual discharging (big flow).Equally, if during simple employing ground flare burner, in case the discharge capacity of torch gas increases, then gas discharges in a large number, can cause burning insufficient, produces a large amount of black smokes because of combustion-supporting steam is not enough, serious environment pollution, even potential safety hazard is arranged.If can be timely switch to the high-altitude mix flare burner timely and effectively according to the increase situation of the discharge capacity of torch gas and burn this moment, so above-mentioned problem just can effectively improve.But present case is not have a kind of burner switched system or switch module and can solve the above problems.

Therefore a kind ofly can improve above-mentioned defective, new, good stability, the invention of good reliability, safe burner switched system is imperative.

The utility model content

For solving the problem that exists in the aforementioned background art, as: if when adopting the high-altitude mix flare burner merely,, then cause the water seal in its water sealed tank that can not break through the high-altitude mix flare burner if torch gas discharge capacity reduces, thereby phenomenon such as cause tempering, smoulder is brought very big potential safety hazard; In case the discharge capacity of torch gas increases, then gas discharges in a large number, can cause burning insufficient, produces a large amount of black smokes because of combustion-supporting steam is not enough, serious environment pollution, even potential safety hazard is arranged.

Described the utility model burner switched system, comprise high-altitude mix flare burner, ground flare burner and connect the switching device shifter of two burners, it is characterized in that: described switching device shifter comprises the flowmeter that is positioned on burned gas (torch gas) discharge tube, and the valve that cooperates with the flowmeter interlock; The described valve that cooperates with the flowmeter interlock is a pneumatic cut-off valve; Also be provided with the restriction orifice of the restriction torch throughput that is positioned at the flowmeter upper end on the described torch gas discharge tube; Described torch gas discharge tube comprises first arm that leads to the high-altitude mix flare burner and second arm that leads to the ground flare burner, and described switching device shifter is positioned on second arm; Described ground flare burner comprises water sealed tank and ground flare combustion tower, is provided with torch gas control valve and downstream pressure transmitter between described water sealed tank and the ground flare combustion tower; Described ground flare burner is provided with the main steam range that can delivering vapor eliminates smoke and enters some steam branch pipes in the combustion tower, and described steam branch pipe is provided with steam control valve; Described ground flare burner is provided with multistage differential control system, and it is made up of the steam control valve on torch gas control valve, downstream pressure transmitter and the steam pipe line; Described multistage differential control system is controlled automatically by unattended automatic control system PLC; Described ground flare burner and high-altitude mix flare burner all are provided with water sealed tank, and described ground flare water sealed tank is different with overhead torch water sealed tank water seal depth.

The beneficial effects of the utility model are: it can effectively improve the security performance of mix flare burner, can be according to the conversion of the discharge capacity of torch gas, carry out the switching of high-altitude and ground flare burner timely and effectively, can effectively guarantee safety, the completing combustion of torch gas, thereby reach the effect of safety, environmental protection, energy-saving and emission-reduction.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further detailed.

Fig. 1 is the structural representation of burner switched system of the present utility model.

The specific embodiment

Specifically introduce various embodiment of the present utility model with reference to the accompanying drawings, structure or function identical among the figure mark with identical numeral.Should be noted that the purpose of accompanying drawing just is convenient to the explanation to the utility model specific embodiment, is not a kind of unnecessary narration or to the restriction of the utility model scope, in addition, accompanying drawing there is no need to draw in proportion.

As shown in the figure, the utility model provides a kind of novel burner switched system, the switching device shifter that it comprises high-altitude mix flare burner, ground flare burner and connects two burners, described switching device shifter comprises the flowmeter 5 that is positioned on the torch gas discharge tube, and the valve 6 that cooperates with flowmeter 5 interlocks; The described valve that cooperates with flowmeter 5 interlocks 6 is pneumatic cut-off valve; Described torch gas delivery pipe (house steward) 1 road comprises first arm 2 that leads to the high-altitude mix flare burner and second arm 3 that leads to the ground flare burner, and described switching device shifter is positioned on second arm 3; Also be provided with the restriction orifice 4 of the restriction torch throughput that is positioned at flowmeter 5 upper ends on second arm 3 on the described torch gas discharge tube; Described ground flare burner comprises water sealed tank 7 and ground flare combustion tower 11, is provided with torch gas control valve 9 and downstream pressure transmitter 10 between described ground flare water sealed tank 7 and the ground flare combustion tower 11; Described ground flare burner is provided with the main steam range 15 that can delivering vapor eliminates smoke and enters some steam branch pipes in the combustion tower 11, and described steam branch pipe is provided with steam control valve 13; Described ground flare burner is provided with multistage differential control system, and it is made up of the steam control valve 13 on torch gas control valve 8, downstream pressure transmitter 10 and the steam pipe line; Described multistage differential control system is controlled (not shown) automatically by unattended automatic control system PLC; Described ground flare burner and high-altitude mix flare burner all are provided with water sealed tank, and described ground flare water sealed tank is different with overhead torch water sealed tank water seal depth, the blowdown presssure difference of torch gas, and normally the water seal depth of high-altitude torch is big.Described overhead torch burner also comprises overhead torch cylindrical shell 18, molecular sealer 19, reaches the overhead torch head 20 that torch gas is handled in final burning except that comprising water sealed tank 17.

During real work: an overhead burner of cover and a cover surface burners are set as the flare system of handling discharging waste gas, during for normal discharging (or perhaps low pressure, low discharge), torch gas is honored as a queen through handling in house steward 8, torch gas control valve 9 at different levels, downstream pressure transmitter 10 burning place 14 in the ground flare combustion tower 11 by arm 3, restriction orifice 4, flowmeter 5, pneumatic cut-off valve 6, water sealed tank 7, one's water breaks.Combustion tower adopts concrete pillar 12 to support, and its outer periphery is equipped with windbreak 13.The ground flare burner adopts steam to eliminate smoke, and steam enters via main steam range 15 and is respectively each grade torch burning place and provides in the steam branch pipe of smoke elimination steam and continue transported in the ground flare combustion tower 11.Described steam branch pipe is provided with steam control valve 16.It can be according to the discharge capacity of the suitable steam regulation of the discharge capacity of torch gas size, thereby, can make the ground flare burner fully to burn, can not cause because of combustion-supporting steam is not enough and produce a large amount of black smokes, serious environment pollution, even potential safety hazard etc. is arranged.

When torch gas discharge capacity surpasses certain value, when promptly surpassing normal discharging (or perhaps low pressure, low discharge), torch gas is then by torch gas discharge manifold 1, first arm 2, overhead torch water sealed tank 17, overhead torch cylindrical shell 18, molecular sealer 19, burning is handled in the overhead torch head 20 at last.

That is, ground flare water sealed tank 7 and overhead torch water sealed tank 17 water seal depth differences, the gas blowdown presssure of one's water breaks envelope is also different.When, pressure little when flow was low, torch gas entered the ground flare burner by second arm 3 and handles.Current limiting plate 4 makes the flow of the arm gas of flowing through can not surpass certain value, the discharge capacity that flowmeter 5 and pneumatic cut-off valve 6 interlocked control enter ground flare is no more than its design flow, if when detecting in second arm 3 gas flows and being higher than a certain value, and close pneumatic cut-off valve 6 automatically, make discharging gas change row's overhead torch and handle via torch tracheae line 2.Ground flare adopts multistage differential control, is made up of the steam control valve 16 on torch gas control valve 9, downstream pressure transmitter 10 and the steam pipe line, is controlled complete unattended automatic control system automatically by PLC.The smoke elimination quantity of steam is changed with discharging tolerance, can not cause steam not enough and the generation black smoke also can not cause waste because of excessive steam, reach the effect of energy-saving and emission-reduction.

In sum: the utility model can be according to the size of processed or burned gas purging amount and is realized the switching of ground and altitude combustion device automatically, thereby the waste gas (torch gas) of required processing is chosen best processing mode, in the time of so can effectively avoiding adopting the high-altitude mix flare burner merely, if torch gas discharge capacity reduces, then cause it can not break through the interior water seal of water sealed tank, thereby phenomenon, the very big potential safety hazard of bringing such as cause tempering, smoulder; Discharge capacity because of torch gas in the time of also can effectively improving simple employing ground flare burner increases, and promptly gas discharges in a large number, can cause burning insufficient, and combustion-supporting steam is not enough and produce a large amount of black smokes, serious environment pollution, even potential safety hazard is arranged.In a word, the utility model can effectively improve the security performance of mix flare burner, can be according to the conversion of the discharge capacity of torch gas, carry out the switching of high-altitude and ground flare burner timely and effectively, can effectively guarantee safety, the completing combustion of torch gas, thereby reach the effect of safety, environmental protection, energy-saving and emission-reduction.

The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art are not breaking away under the technical solutions of the utility model scope situation, utilize the method content of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, all belong to the scope of claims protection.

Claims

1. burner switched system, comprise altitude combustion device, surface burners and connect the switching device shifter of two burners, it is characterized in that: described switching device shifter comprises the flowmeter that is positioned on the burned gas emission pipe, and the valve that cooperates with the flowmeter interlock.

2. burner switched system according to claim 1 is characterized in that: the described valve that cooperates with the flowmeter interlock is a pneumatic cut-off valve.

3. burner switched system according to claim 1 is characterized in that: the restriction orifice that also is provided with the burned gas flow amount of restriction that is positioned at the flowmeter upper end on the described burned gas emission pipe.

4. burner switched system according to claim 1 is characterized in that: described burned gas emission pipe comprises first arm that leads to the altitude combustion device and second arm that leads to surface burners, and described switching device shifter is positioned on second arm.

5. burner switched system according to claim 1 is characterized in that: described surface burners comprises water sealed tank and ground combustion tower, is provided with burned gas control valve and downstream pressure transmitter between described water sealed tank and the ground combustion tower.

6. according to claim 1, one of 5 described burner switched systems, it is characterized in that: described surface burners is provided with the main steam range that can delivering vapor eliminates smoke and enters some steam branch pipes in the combustion tower, and described steam branch pipe is provided with steam control valve.

7. according to claim 1, one of 5 described burner switched systems, it is characterized in that: described surface burners is provided with multistage differential control system, and it comprises: the steam control valve on burned gas control valve, downstream pressure transmitter and the steam pipe line.

8. burner switched system according to claim 7 is characterized in that: described multistage differential control system is controlled automatically by unattended automatic control system PLC.

9. burner switched system according to claim 1 is characterized in that: described surface burners and altitude combustion device all are provided with water sealed tank, and described surface water sealed cans are different with overhead water sealed tank water seal depth.