CN208748026U - A kind of oil and gas recovery condensate collection and delivery device - Google Patents
A kind of oil and gas recovery condensate collection and delivery device Download PDFInfo
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- CN208748026U CN208748026U CN201820835076.XU CN201820835076U CN208748026U CN 208748026 U CN208748026 U CN 208748026U CN 201820835076 U CN201820835076 U CN 201820835076U CN 208748026 U CN208748026 U CN 208748026U
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Abstract
本实用新型公开了一种油气回收凝液收集与输送装置，该油气回收凝液收集与输送装置，包括顺次连接的冷凝装置、集油装置和输油装置；所述冷凝装置由依次连接的预冷器、一级冷凝器、二级冷凝器和三级冷凝器组成，所述冷凝装置排液管道并列向下与集合管连通；所述集油罐底部进液口与集合管一端连通；所述输油装置包括储油罐和液控阀，所述储油罐顶部有三路与所述集油罐相连，所述储油罐顶部还与氮气充压阀连通，所述储油罐顶部还与油气回收入口通过泄压阀连通，所述储油罐底部出口连接所述液控阀。通过U型液封下液管道隔离油气，避免油气短路；通过氮气对储油罐充压，将凝液输送出去，消除油气回收因输油泵汽蚀造成的安全隐患。
The utility model discloses a condensate collecting and conveying device for oil and gas recovery. The condensate collecting and conveying device for oil and gas recovery comprises a condensing device, an oil collecting device and an oil conveying device which are connected in sequence; It is composed of a precooler, a primary condenser, a secondary condenser and a tertiary condenser, and the liquid drain pipes of the condensing device are connected in parallel and downward with the collecting pipe; the liquid inlet at the bottom of the oil collecting tank is connected with one end of the collecting pipe; The oil delivery device includes an oil storage tank and a hydraulic control valve, the top of the oil storage tank is connected with the oil collecting tank by three channels, the top of the oil storage tank is also connected with a nitrogen charging valve, and the top of the oil storage tank is It is also communicated with the oil and gas recovery inlet through a pressure relief valve, and the outlet at the bottom of the oil storage tank is connected to the hydraulic control valve. The oil and gas are isolated through the U-shaped liquid seal lower liquid pipeline to avoid short circuit of oil and gas; the oil storage tank is pressurized with nitrogen to transport the condensate out, and the safety hazard caused by the cavitation of the oil pump is eliminated.
Description
Technical field
The utility model belongs to Investigation of Petroleum Vapor Recovery Technology field, and in particular to a kind of petroleum vapor recovery lime set is collected to be filled with conveying
It sets.
Background technique
Light-end products (espespecially gasoline, naphtha, light aromatic hydrocarbons) saturated vapor pressure is high, high volatility, in storage, handling, fortune
In defeated and sales process, a large amount of oil gas volatilization is had, both will cause the waste of environmental pollution and oil product resource, there is also safety
Hidden danger and injury to human health.Condensation method or with condense it is relevant combine petroleum vapor recovery technique (such as condensation+absorption, absorption+
Condensation) it is used widely, oil gas is condensed into liquid by refrigerant, discharge gas meets " petroleum refining industry pollutant
Discharge standard " (GB31570-2015).By multistage ladder into formula cryogenic separation, step by step by oil gas water, light oil constituents (C5 with
On) and liquefied gas component (C3, C4) condense out and removed, condensate liquid is transferred out, but due to oil by pump from flowing to oil storage tank
Water density difference is big, and light oil constituents easily vaporizes, and contains C3 and C4 component, and the prior art is easy to happen cavitation using pump conveying
Phenomenon causes oil transfer pump not measured, and simple low temperature cannot overcome oil transfer pump problem of cavitation, and this phenomenon is especially prominent in summer, deposits
In great security risk.At least there are the following problems for existing technology: (1) all being existed according to oil gas route condenser certain
Pressure drop, and the pipeline of condensate liquid into oil storage tank is not direction flowing full, that oil gas can be low along pressure, is altered into oil storage tank
Gas-phase space causes oil gas short-circuit, and the oil gas of part high concentration is directly entered subsequent condensation device or absorber, easily ice is caused to block up phenomenon
It is not up to standard with discharge gas；(2) condensate liquid of condensing recovery is volatile, and density is low, and saturated vapor pressure is high, easy into oil delivery pump body
It vaporizes, forms cavitation, do not pump amount, there are security risks.
Summary of the invention
Based on the above the deficiencies in the prior art, technical problem to be solved by the present invention lies in providing, a kind of petroleum vapor recovery is solidifying
Liquid is collected and conveying device, and to solve, the gas of petroleum vapor recovery in the prior art is mutually gone here and there and lime set delivery pump is because of the not upper amount of cavitation
Problem.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of petroleum vapor recovery lime set is collected and conveying device, including be sequentially tightly connected condensing unit, oil collector sump tank and
Fuel delivery device；The condensing unit is by the sequentially connected forecooler of pipeline, first-stage condenser, secondary condenser and three-level condenser
Composition, four drain pipes of the condensing unit are connected to concetrated pipe downwards side by side；The oil collector sump tank is accumulator tank, the collection
The inlet of tank bottom is connected to described concetrated pipe one end；The fuel delivery device includes oil storage tank and pilot operated valve device, the oil storage
There is three tunnels opening to be connected at the top of tank with the accumulator tank, first via opening passes through balanced valve phase with the accumulator tank top exit
Connection, the second tunnel opening are connected with the middle part of the accumulator tank by fluid valve, and third road opening goes out with the accumulator tank bottom
Mouthful be connected by condensate drain valve, the top of the oil storage tank is also connected to nitrogen equalizer valve, the top of the oil storage tank also with oil
Gas recycles entrance and is connected to by relief valve, and the outlet at bottom of the oil storage tank connects the entrance of the pilot operated valve device, the pilot operated valve device
Outlet be connected to tank field oil storage tank by pipeline.
Preferably, the condensing unit is multi-stage condensing device, is arranged above the accumulator tank, the condensing unit
Drainage pipe, concetrated pipe and accumulator tank constitute U-shaped liquid seal structure, are sealed by liquid phase, oil gas is avoided to walk short circuit.Oil gas is through each cold
Condenser condensation, the lime set condensed out by gravity downwards through drain pipe from flowing into concetrated pipe, and by described concetrated pipe one end into
Accumulator tank, then oil storage tank is overflowed to by accumulator tank centre exit.
Preferably, the concetrated pipe is horizontally disposed, is lower than the accumulator tank centre exit 1.0m.
Preferably, the balanced valve, fluid valve, relief valve, equalizer valve and pilot operated valve device are control valve, are carried out by PLC
It automatically controls, realizes unattended.
Preferably, the condensate drain valve is gate valve, is in close state always when operating normally, when overhauling cleaning to arrange
The liquid storage of accumulator tank to the greatest extent.
Preferably, the accumulator tank is vertical tank, and the oil storage tank is horizontal tank, and the accumulator tank is arranged in the oil storage
The top of tank.
Utility model works principle is as follows: step 1, receives oily process.During petroleum vapor recovery, oil gas to be recycled according to
Secondary to carry out ladder condensation by forecooler, first-stage condenser, secondary condenser and three-level condenser, the condensate liquid condensed out is logical
The Drainage pipe of condenser is crossed by flow by gravity to level set pipe, by horizontal positioned concetrated pipe one end from the bottom of accumulator tank
Into, then the spilling in the middle part of accumulator tank, by fluid valve from oil storage tank is flowed into, at this point, the equalizer valve of oil storage tank, relief valve and hydraulic control
Valve is in close state, and fluid valve, balanced valve are in the open state；Step 2, oil transportation process.On oil tank level rises to
When limiting setting value 90%, overflow valve, balanced valve are closed, and accumulator tank and oil storage tank are separated, and equalizer valve is opened, and are filled with to oil storage tank
Nitrogen, pressure rise to 0.4~0.5kg/cm2(gauge pressure), and maintain this pressure always during oil transportation, pilot operated valve device is opened therewith
It opens, starts toward device to convey lime set outside.At this point, under the condensation of forecooler, first-stage condenser, secondary condenser, three-level condenser
The condensate liquid come is temporarily stored by flow by gravity to accumulator tank by pipeline；Step 3, pressure leak process.It is reduced in oil tank level
When to preset lower limit 20%, pilot operated valve device is closed, and equalizer valve is closed, and is stopped nitrogen and is entered, relief valve is opened, by the nitrogen of oil storage tank
Gas discharges pressure release to the oil gas entrance of device for recovering oil and gas；Step 4, recuperation.After oil storage tank pressure is down to 0, closing is let out
Pressure valve opens fluid valve and balanced valve, and the lime set that accumulator tank is kept in is entered oil storage tank, accumulator tank and storage by fluid valve overflow
Oil tank keeps pressure equal by balanced valve, avoids generating vapour locking, process enters step a state.The oil storage tank deck setting pressure
Force snesor, 0.4~0.5kg/cm of pressure when oil transportation2(gauge pressure), is controlled by equalizer valve, and pressure control is 0 when pressure release, by pressure release
Valve control.
Compared with prior art, the utility model has the beneficial effects that Oil/Gas Pipe is isolated by U-shaped fluid-tight lower liquid pipe road
Road is avoided that oil gas short circuit；By nitrogen to oil storage tank pressurising, the lime set of recycling is transferred out, cavitation phenomenons do not occur, is disappeared
Except petroleum vapor recovery is because of security risk caused by oil transportation pump cavitation.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be more clearly understood with advantage, below in conjunction with preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing of embodiment will be made below simple
Ground introduction.
Fig. 1 is a kind of structural schematic diagram of petroleum vapor recovery fuel delivery device of the preferred embodiment in the utility model.
In attached drawing, parts list represented by the reference numerals are as follows: 1. condensing units；2. accumulator tank；3. oil storage tank； 5.
Pilot operated valve device；6. relief valve；7. equalizer valve；8. balanced valve；9. fluid valve；10. condensate drain valve；101. forecooler；102. one
Grade condenser；103. secondary condenser；104.. three-level condenser.
Specific embodiment
The specific embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings, as part of this specification,
Illustrate that the principles of the present invention, other aspects of the present invention, feature and its advantage pass through the detailed description by embodiment
It will become apparent.
A kind of petroleum vapor recovery lime set of the utility model is collected and conveying device, as shown in Figure 1, a kind of petroleum vapor recovery it is solidifying
Liquid is collected and conveying device, as shown in Figure 1, including condensing unit 1, oil collector sump tank and the fuel delivery device being sequentially tightly connected；Institute
Condensing unit is stated by the sequentially connected forecooler 101 of pipeline, first-stage condenser 102, secondary condenser 103 and three-level condenser
104 compositions, four drain pipes of the condensing unit 1 are connected to concetrated pipe 11 downwards side by side；The oil collector sump tank is accumulator tank
2, the inlet of 2 bottom of accumulator tank is connected to described 11 one end of concetrated pipe；The fuel delivery device includes oil storage tank 3 and hydraulic control
Valve 5, the top of the oil storage tank 3 have three tunnels opening to be connected with the accumulator tank 2, first via opening and 2 top of accumulator tank
Outlet is connected by balanced valve 8, and the second tunnel opening is connected with the middle part of the accumulator tank 2 by fluid valve 9, and third road is opened
Mouth is connected with 2 bottom outlet of accumulator tank by condensate drain valve 10, and the top of the oil storage tank 3 is also connected to nitrogen equalizer valve 7,
The top of the oil storage tank 3 is also connected to petroleum vapor recovery entrance by relief valve 6, and the outlet at bottom of the oil storage tank 3 connects institute
The entrance of pilot operated valve device 5 is stated, the outlet of the pilot operated valve device 5 is connected to tank field oil storage tank.
Preferred technical solution, the condensing unit 1 are multi-stage condensing device, are arranged above the accumulator tank 2, described
Drainage pipe, concetrated pipe 11 and the accumulator tank 2 of condensing unit 1 constitute U-shaped liquid seal structure, are sealed by liquid phase, oil gas is avoided to walk
Short circuit.Oil gas is condensed through each condenser, and the lime set condensed out flows into concetrated pipe 11 certainly through drain pipe downwards by gravity, and passes through
Described 11 one end of concetrated pipe overflows to oil storage tank 3 into accumulator tank 2, then by 2 centre exit of accumulator tank.
Preferred technical solution, the concetrated pipe 11 is horizontally disposed, is lower than the 2 centre exit 1.0m of accumulator tank.
Preferred technical solution, the balanced valve 8, fluid valve 9, relief valve 6, equalizer valve 7 and pilot operated valve device 6 are control
Valve is carried out automatically controlling by PLC, is realized unattended.
Preferred technical solution, the condensate drain valve 10 are gate valve, are in close state, are overhauling always when operating normally
The liquid storage of accumulator tank 2 is drained when cleaning.
Preferred technical solution, the accumulator tank 2 are vertical tank, and the oil storage tank 3 is horizontal tank, and the accumulator tank 2 is set
It sets in the top of the oil storage tank 3.
The lime set collection of the utility model is completed with transmission process by following circulation step:
Step 1 receives oily process.During petroleum vapor recovery, oil gas to be recycled successively passes through forecooler 101(5~10
DEG C), first-stage condenser 102(1~5 DEG C), secondary condenser 103(-30~-- 40 DEG C) and three-level condenser 104(-70~-80
DEG C) carry out ladder condensation, the condensate liquid condensed out by the Drainage pipe of condenser by flow by gravity to level set pipe 11,
By horizontal positioned 11 one end of concetrated pipe from the bottom of accumulator tank 2 into then overflowing in the middle part of accumulator tank 2, flow automatically by fluid valve 9
Into oil storage tank 3, at this point, the equalizer valve 7 of oil storage tank 3, relief valve 6 and pilot operated valve device 5 are in close state, overflow valve 9, balanced valve 8
It is in the open state；
Step 2, oil transportation process.When 3 liquid level of oil storage tank rises to upper limit set value 90%, overflow valve 9, balanced valve 8 are closed
It closes, accumulator tank 2 and oil storage tank 3 is separated, equalizer valve 7 is opened, and is filled with nitrogen to oil storage tank 3, pressure rises to 0.4~0.5kg/
cm2(gauge pressure), and maintain this pressure always during oil transportation, pilot operated valve device 5 is opened therewith, is started lime set toward defeated outside device
It send.At this point, the condensate liquid that forecooler 101, first-stage condenser 102, secondary condenser 103, three-level condenser 104 condense out is logical
Piping is temporarily stored by flow by gravity to accumulator tank 2；
Step 3, pressure leak process.When 3 liquid level of oil storage tank is reduced to preset lower limit 20%, pilot operated valve device 5 is closed, equalizer valve
7 close, and stop nitrogen and enter, open relief valve 6, and the nitrogen of oil storage tank 3 is let out to the release of the oil gas entrance of device for recovering oil and gas
Pressure；
Step 4, recuperation.After 3 pressure of oil storage tank is down to 0, relief valve 6 is closed, opens fluid valve 9 and balanced valve
8, the light oil that accumulator tank 2 is kept in is entered into oil storage tank 3, accumulator tank 2 and oil storage tank 3 by 9 overflow of fluid valve and is protected by balanced valve 8
It is equal to hold pressure, avoids generating vapour locking, process enters step a state, starts subsequent cycle.
Relative to existing apparatus and method, the advantage of the utility model is:
(1) the stifled phenomenon of ice does not occur for device for recovering oil and gas energy long-play, realizes that continual and steady operation and discharge gas reach
Mark；
(2) overcome causes the discharge gas caused by refrigeration unit frequent shutdown defrost intermittently not up to standard because ice is stifled；
(3) by nitrogen pressurising convey lime set, be inherently eliminated using pump conveying lime set caused by cavitation not on
Amount problem guarantees the operational safety of device for recovering oil and gas.
The above content is the further description done in conjunction with specific embodiment to the utility model, this must not believe that
The specific implementation of utility model is only limited to these instructions, and the utility model person of an ordinary skill in the technical field is come
It says, without departing from the concept of the premise utility, the simple replacement done all shall be regarded as belonging to the guarantor of the utility model
Protect range.
Claims (6)
1. a kind of petroleum vapor recovery lime set is collected and conveying device, which is characterized in that including the condensing unit being sequentially tightly connected
(1), oil collector sump tank and fuel delivery device；The condensing unit (1) is by the sequentially connected forecooler of pipeline (101), first-stage condenser
(102), secondary condenser (103) and three-level condenser (104) composition, four drain pipes of the condensing unit (1) side by side to
It is lower to be connected to concetrated pipe (11)；The oil collector sump tank is accumulator tank (2), the inlet and the collection of accumulator tank (2) bottom
Close the connection of pipe (11) one end；The fuel delivery device includes oil storage tank (3) and pilot operated valve device (5), has three at the top of the oil storage tank (3)
Road opening is connected with the accumulator tank (2), and first via opening is connected with the accumulator tank (2) top exit by balanced valve (8)
It connects, the second tunnel opening is connected with the middle part of the accumulator tank (2) by fluid valve (9), third road opening and the accumulator tank
(2) bottom outlet is connected by condensate drain valve (10), and the top of the oil storage tank (3) is also connected to nitrogen equalizer valve (7), the storage
The top of oil tank (3) is also connected to petroleum vapor recovery entrance by relief valve (6), and the outlet at bottom of the oil storage tank (3) connects institute
The entrance of pilot operated valve device (5) is stated, the outlet of the pilot operated valve device (5) is connected to tank field oil storage tank.
2. petroleum vapor recovery lime set according to claim 1 is collected and conveying device, which is characterized in that the condensing unit
It (1) is multi-stage condensing device, setting is above the accumulator tank (2), Drainage pipe, the concetrated pipe of the condensing unit (1)
(11) and accumulator tank (2) constitutes U-shaped liquid seal structure, is sealed by liquid phase, oil gas is avoided to walk short circuit;Oil gas is cold through each condenser
Solidifying, the lime set condensed out flows into concetrated pipe (11) through drain pipe downwards certainly by gravity, and passes through the concetrated pipe (11) one end
Oil storage tank (3) are overflowed into accumulator tank (2), then by accumulator tank (2) centre exit.
3. petroleum vapor recovery lime set according to claim 1 is collected and conveying device, which is characterized in that the concetrated pipe (11)
It is horizontally disposed, it is lower than the accumulator tank (2) centre exit 1.0m.
4. petroleum vapor recovery lime set according to claim 1 is collected and conveying device, which is characterized in that the balanced valve (8),
Fluid valve (9), relief valve (6), equalizer valve (7) and pilot operated valve device (6) are control valve, are carried out automatically controlling by PLC, realize nothing
People is on duty.
5. petroleum vapor recovery lime set according to claim 1 is collected and conveying device, which is characterized in that the condensate drain valve (10)
It for gate valve, is in close state always when operating normally, the liquid storage of accumulator tank (2) is drained when overhauling cleaning.
6. petroleum vapor recovery lime set according to claim 1 is collected and conveying device, which is characterized in that the accumulator tank (2)
For vertical tank, the oil storage tank (3) is horizontal tank, top of accumulator tank (2) setting in the oil storage tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820835076.XU CN208748026U (en) | 2018-06-01 | 2018-06-01 | A kind of oil and gas recovery condensate collection and delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820835076.XU CN208748026U (en) | 2018-06-01 | 2018-06-01 | A kind of oil and gas recovery condensate collection and delivery device |
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| Publication Number | Publication Date |
|---|---|
| CN208748026U true CN208748026U (en) | 2019-04-16 |
Family
ID=66053736
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820835076.XU Expired - Fee Related CN208748026U (en) | 2018-06-01 | 2018-06-01 | A kind of oil and gas recovery condensate collection and delivery device |
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| CN (1) | CN208748026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009897A (en) * | 2019-05-31 | 2020-12-01 | 中山凯旋真空科技股份有限公司 | Condensate oil collecting and discharging device |
-
2018
- 2018-06-01 CN CN201820835076.XU patent/CN208748026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009897A (en) * | 2019-05-31 | 2020-12-01 | 中山凯旋真空科技股份有限公司 | Condensate oil collecting and discharging device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 |