A kind of torch condensation water recovery system
Technical field
The present invention relates to chemical fields, in particular to a kind of torch condensation water recovery system.
Background technique
Flare system is the critical facility guaranteed when petrochemical factory normally produces and occur accident, is used for processing unit start-stop
Under work and maintenance, fire incident, public work accident and other accident operating condition it is unserviceable accomplished continuously or intermittently discharge can
Combustion property gas and poisonous and hazardous fuel gas, are handled by burning, it is made to be converted into nontoxic non-flammable substance row
It puts, it is ensured that the safety in production of petrochemical factory.
In torch gas can contain a certain amount of condensation water, Producing reason may be as caused by condensation or entrainment,
Before being discharged into flare system pipeline, liquid separation tank is generally set in the device to reduce the condensation water in torch gas general pipeline.But torch
It is generally located on from the longer-distance place of process units, torch gas can generate condensation water in relatively long distance transmission process, row
It puts pipe arrangement and preferably comprehensively considers the factors such as topography and distance, multiple liquid separation processing is carried out to torch gas, usually in discharge tube
Local relative low points corresponding condensation water collecting tank or knockout drum are set, burn, cause in order to avoid condensation water is carried secretly to flare tip
Under " fire rain ".
Condensation water stored in tank to it is a certain amount of when, can generally be directly transported by pump and be back to the collection of full factory's condensation water and set
It applies and is recycled.Apart from the farther away condensation liquid storage tank of condensation water collection facility, it may be necessary to it is equipped with the biggish pump of lift,
Certain difficulty is caused to pump type selecting, and needs higher equipment cost.For guarantee flare system safe and stable operation,
It needs to drain in time when condensation water is deposited to setting value, the performance requirement of pump can completely reliably must start in time when needed
Successful operation work.Since torch gas is random intermittent discharge, to guarantee that pump can come into operation at any time, usual maintenance is needed
Put into higher man power and material.
Summary of the invention
The present invention provides a kind of torch condensation water recovery system, to overcome it is existing in the prior art at least one ask
Topic.
In order to achieve the above objectives, the present invention provides a kind of torch condensation water recovery systems, comprising: the first liquid collecting tank divides
Flow container, the first liquid-level indicating controller, the second liquid-level indicating controller, the first pump and the second pump, in which:
In torch gas pipeline on the way Local Phase to low dot location, the liquid separation tank is arranged in fire for the first liquid collecting tank setting
Torch gas enters on the pipeline before torch, and first liquid-level indicating controller is arranged on the liquid separation tank, second liquid level
Indicate that controller is arranged on first liquid collecting tank, first pump is arranged in the liquid separation tank and first liquid collecting tank
Between condensation water feed-line on, second pump is arranged in solidifying between first liquid collecting tank and lime set collecting device
Tie liquid feed-line on, first pump is connected with first liquid-level indicating controller, second pump with it is described
Second liquid-level indicating controller is connected, described when the torch condensation liquid level in the liquid separation tank reaches the first setting liquid level
First fluid level indicator controls first pump and condensation water is imported first liquid collecting tank from liquid separation tank conveying;Work as institute
The torch condensation liquid level in the first liquid collecting tank is stated when reaching the second setting liquid level, the second fluid level indicator control described second
Condensation water is conveyed from first liquid collecting tank and imports lime set collecting device by pump.
Further, above-mentioned torch condensation water recovery system further include the second liquid collecting tank, third liquid-level indicating controller and
The torch gas pipeline Local Phase between the liquid separation tank and first liquid collecting tank is arranged in third pump, second liquid collecting tank
To low dot location, the third liquid-level indicating controller is arranged on second liquid collecting tank, and the third pump is arranged in institute
It states on the condensation water feed-line between the first liquid collecting tank and second liquid collecting tank, the third pump and the third liquid level
Instruction controller is connected, when the torch condensation liquid level in the liquid separation tank reaches the first setting liquid level, first liquid level
Indicator controls first pump and condensation water is imported second liquid collecting tank from liquid separation tank conveying;When second collection
When torch condensation liquid level in flow container reaches third setting liquid level, the third fluid level indicator, which will control the third pump, to coagulate
It ties liquid and imports first liquid collecting tank from second liquid collecting tank conveying;When the torch condensation liquid level in first liquid collecting tank reaches
When setting liquid level to second, second fluid level indicator controls second pump, and condensation water is defeated from first liquid collecting tank
It send and imports lime set collecting device.
Further, the number of second liquid collecting tank, the third liquid-level indicating controller and the third pump is equal
For at least two, be successively set on torch gas pipeline between the liquid separation tank and first liquid collecting tank on the way Local Phase to low
Point position.
The invention has the following advantages:
The conveying of torch condensation water imports the liquid collecting tank closed in liquid separation tank apart from condensation water collection facility distalmost end, successively
Condensation water is finally imported into from the distant to the near in the liquid collecting tank nearest apart from condensation water collection facility, then is uniformly delivered to plant area
Condensation water collection facility.In this way, pump lift accordingly has different degrees of subtract under the premise of pump quantity does not change
It is small, it is convenient for type selecting, while reducing equipment cost.If two tanks closed on have certain topography height difference, can be directly sharp with reasonable consideration
Condensation water is conveyed with gravity, pump quantity not only can be reduced and save equipment cost, and condensation water collection system
It is more safe and reliable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the torch condensation water recovery system schematic diagram of one embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the torch condensation water recovery system schematic diagram of one embodiment of the invention.As shown, in figure, A be from
The torch gas of battery limit (BL), B are torch lime set, and C is the torch gas for going to torch, and D is the torch lime set for going to lime set collecting device, fire
Torch condensation water recovery system includes: that the first liquid collecting tank 104, liquid separation tank 101, the first liquid-level indicating controller 102, the second liquid level refer to
Show controller 105, the first pump 103 and the second pump 106, in which:
In torch gas pipeline on the way Local Phase to low dot location, the setting of liquid separation tank enters the setting of first liquid collecting tank in torch gas
On pipeline before torch, the first liquid-level indicating controller is arranged on liquid separation tank, and the second liquid-level indicating controller is arranged first
On liquid collecting tank, the first pump is arranged on the condensation water feed-line between liquid separation tank and the first liquid collecting tank, the setting of the second pump
On condensation water feed-line between the first liquid collecting tank and lime set collecting device, the first pump and the first liquid-level indicating controller
It is connected, the second pump is connected with the second liquid-level indicating controller, sets when the torch condensation liquid level in liquid separation tank reaches first
When determining liquid level, the first fluid level indicator controls the first pump and condensation water is conveyed the first liquid collecting tank of remittance from liquid separation tank;When first
Torch condensation liquid level in liquid collecting tank is when reaching the second setting liquid level, the second fluid level indicator control the second pump by condensation water from
The conveying of first liquid collecting tank imports lime set collecting device.
Further, above-mentioned torch condensation water recovery system further includes the second liquid collecting tank 107, third liquid-level indicating controller
108 and third pump 109, the second liquid collecting tank the torch gas pipeline Local Phase between liquid separation tank and the first liquid collecting tank is set to low
Point position, third liquid-level indicating controller are arranged on the second liquid collecting tank, and the setting of third pump collects in the first liquid collecting tank and second
On condensation water feed-line between flow container, third pump is connected with third liquid-level indicating controller, the fire in liquid separation tank
When torch condensation liquid level reaches the first setting liquid level, the first fluid level indicator, which controls the first pump and conveys condensation water from liquid separation tank, to converge
Enter the second liquid collecting tank;When the torch condensation liquid level in the second liquid collecting tank reaches third setting liquid level, third fluid level indicator control
Condensation water is conveyed from the second liquid collecting tank and imports the first liquid collecting tank by third pump processed;When the torch condensation in first liquid collecting tank
When liquid level reaches the second setting liquid level, second fluid level indicator controls second pump and collects condensation water from described first
Flow container conveying imports lime set collecting device.
Further, the number of the second liquid collecting tank, third liquid-level indicating controller and third pump is at least two, according to
The secondary torch gas pipeline being arranged between liquid separation tank and the first liquid collecting tank on the way Local Phase to low dot location.
The following are two cases for combining actual use scene.
Case 1
Certain flare system is provided with liquid collecting tank a) halfway, into torch before be provided with liquid separation tank b).Fire in liquid separation tank b)
When torch condensation water liquid level reaches high liquid level, imported by pump conveying to liquid collecting tank a).To torch condensation water liquid in liquid collecting tank a)
When face reaches high liquid level, it is delivered to the torch condensation water collection system of plant area by pump, further recycles.
Case 2
Certain flare system is provided with liquid collecting tank c) in topography minimum point, into torch before be provided with liquid separation tank d).Liquid separation tank d)
In torch condensation liquid level when reaching high liquid level, utilize gravity conveying to import to liquid collecting tank c).To torch in liquid collecting tank c)
When condensation liquid level reaches high liquid level, it is delivered to the torch condensation water collection system of plant area by pump, further recycles.
To sum up, torch condensation water conveying remittance closes in the liquid separation tank in the present invention apart from condensation water collection facility distalmost end
Liquid collecting tank, and successively condensation water is finally imported into the liquid collecting tank nearest apart from condensation water collection facility from the distant to the near,
It is uniformly delivered to the condensation water collection facility of plant area again.In this way, pump lift is corresponding under the premise of pump quantity does not change
There is different degrees of reduction, is convenient for type selecting, while reducing equipment cost.If two tanks closed on have certain topography height difference, can
It directly utilizes gravity to convey condensation water with reasonable consideration, pump quantity not only can be reduced and save equipment cost, and
And condensation water collection system is more safe and reliable.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
Those of ordinary skill in the art will appreciate that: the module in device in embodiment can describe to divide according to embodiment
It is distributed in the device of embodiment, corresponding change can also be carried out and be located in one or more devices different from the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features;And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.