WO2012059018A1 - 煤气柜大排水量油水分离器 - Google Patents

煤气柜大排水量油水分离器 Download PDF

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Publication number
WO2012059018A1
WO2012059018A1 PCT/CN2011/081404 CN2011081404W WO2012059018A1 WO 2012059018 A1 WO2012059018 A1 WO 2012059018A1 CN 2011081404 W CN2011081404 W CN 2011081404W WO 2012059018 A1 WO2012059018 A1 WO 2012059018A1
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oil
water
gas
overflow
level
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PCT/CN2011/081404
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English (en)
French (fr)
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高海平
王苏林
戴连鹏
朱斯
郑晓虎
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中冶赛迪工程技术股份有限公司
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Publication of WO2012059018A1 publication Critical patent/WO2012059018A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats

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  • the invention relates to a gas cabinet accessory device, in particular to a oil-water separator for sealing a circulating oil of a gas cabinet.
  • the gas cabinet is a steel container for storing industrial and civil gas. Because it is equipped with gas, it has high sealing performance.
  • a piston-type dry gas cabinet with a thin oil seal is generally used, and a sealing oil is continuously supplied to the piston oil groove by means of a closed circuit of the sealing oil to maintain the oil seal height of the oil groove and prevent gas from escaping.
  • the oil supply device comprises an oil supply pump and a pipe, a reserve oil tank and an overflow device, and a oil recovery plate on the piston, which together form a piston seal oil supply device to supply oil to the piston oil groove to ensure the sealing oil level of the piston oil groove.
  • the circulating oil is more fully contacted with the gas, and more condensed water will be collected and mixed with the circulating oil to enter the oil groove at the bottom of the gas cabinet.
  • the condensed water is separated; in order to achieve the above purpose, the sealing oil needs to be separated by the oil-water separator before the circulation.
  • the cooling gas is generally cooled at about 60 ° C and is sent after the gas pipe network is rich in gas. Store in a gas cabinet. When the gas temperature is lowered, the calorific value of the gas is relatively low, and a large amount of water is wasted.
  • the gas saturation moisture content will increase significantly.
  • the gas saturation moisture content is about 18 g/m 3 at 20 ° C; the gas saturated moisture content is about 32 g/m 3 at 30 ° C; the gas saturation at 50 ° C moisture content of about 100g / m 3; 60 °C, gas saturation moisture content of about 176g / m 3; 72 deg.] C when the gas saturated moisture content of about 356g / m 3. It can be seen that a higher temperature gas requires a larger amount of displacement.
  • a 200,000 m 3 gas cabinet has 4 oil-water separators.
  • the single oil-water separator realizes the control of the oil level of the piston oil groove by adjusting the oil level of the bottom oil groove and realizes the automatic drainage function.
  • the drainage capacity of the single oil-water separator is only 1 t/h; if the oil-tight sealed gas is improved When the storage temperature of the cabinet is increased, the displacement will become larger. Under such circumstances, how to keep the oil level of the bottom oil groove basically unchanged and maintain the separation effect of oil and water becomes an urgent problem to be solved.
  • the object of the present invention is to provide a large displacement oil-water separator for a gas cabinet, which can increase the displacement and maintain a small change in the water level of the bottom oil groove, thereby realizing the purpose of using the oil-water separator to control the oil level of the piston oil groove. Therefore, it can be applied to a gas with a relatively high storage temperature, which can improve the heat value of the gas while saving cooling water and saving the use cost.
  • the gas tank large displacement oil-water separator of the invention comprises a sealing separation chamber, a secondary separation chamber and a recovery chamber, and the sealed separation chamber is connected with the oil groove at the bottom of the gas cabinet, and the sealed separation chamber is divided into an oil and gas water area and an oil and gas area through the overflow device.
  • the oil and gas zone is located between the lower portion of the oil level and the secondary separation chamber, and the secondary separation chamber is in communication with the recovery chamber, and further includes a main drainage system including a main drainage pipe and a liquid level detecting component.
  • the water inlet of the main drain pipe is connected to the condensed water phase of the lower part of the oil and gas water zone and the external drain port is higher than the liquid level of the oil and gas water zone to form a water seal structure, and the liquid level detecting component is disposed in the oil and gas water zone for detecting the oil level or / and water level, the main drain is provided with a regulating valve that is adjusted according to the oil level or / and water level detected by the liquid level detecting component.
  • the bottom oil groove of the gas cabinet is connected to the oil and gas water area through a U-shaped connector, and the diameter of the U-shaped connector is greater than DN100;
  • a gas barrier plate is disposed between the lower U-shaped connector interface of the oil groove at the bottom of the gas cabinet and the oil-water interface;
  • an automatic control system is further provided for receiving an oil level or/and a water level signal of the liquid level detecting component and issuing a command signal to the regulating valve according to the signal;
  • the overflow device includes a water overflow assembly and an oil overflow assembly that are sealed from each other, and the water overflow assembly includes a vertical overflow pipe and a horizontal overflow pipe disposed in the oil and gas water zone, the vertical overflow
  • the upper end of the tube communicates with the gas phase of the oil and gas water zone, the lower end is connected to the condensed water phase of the oil and gas water zone, the middle part is provided with an overflow port, and the horizontal overflow pipe is connected between the overflow port and the oil water separator drainage channel;
  • the oil overflow component includes the setting In the oil overflow between the oil and gas water zone and the oil and gas zone, the sluice of the oil overflow raft is higher than the condensed water phase liquid level of the oil and gas water zone;
  • the overflow device is provided with an overflow height adjusting device, the horizontal overflow pipe is fixedly connected to the oil overflow wall and bent downward, and the downward bent portion is slidingly inserted into the oil water separator drainage channel.
  • the vertical section; the overflow height adjusting device comprises a bracket and a vertical screw rod, and the bracket is fixedly disposed on the oil water separator outer casing, and the lower end of the vertical screw rod is fixedly connected to the horizontal overflow pipe so as to be rotatable about the axis thereof, and the upper end is sealed and worn.
  • the oil-water separator housing is threadedly engaged with the bracket;
  • the liquid level detecting component includes a liquid level tube vertically penetrating the oil and gas water area and a liquid level meter placed in the liquid level cylinder;
  • oil and gas zone communicates with the secondary separation chamber through an oil seal pipe that communicates with the bottom portion and extends upward.
  • the gas tank large displacement oil-water separator of the invention provides a main drain pipe and a liquid level detecting component in the oil and gas water zone of the oil-water separator sealing separation chamber, and the liquid level parameter of the liquid level detecting component is used for controlling the regulating valve on the main drain pipe Automatic adjustment; under normal production conditions, most of the condensed water is discharged through the main drain pipe, a small part of the condensed water is discharged through the condensate overflow component in the existing separator, and the oil-water interface reaches the condensate overflow component in the separator When the opening degree of the regulating valve is maximized by automatic adjustment, when the oil-water interface is low, the opening degree of the regulating valve is gradually decreased, and the main drainage flow rate is adjusted.
  • the water sealing structure of the main drain pipe automatically stops the main drainage device.
  • the main drain pipe stops draining, and the oil-water interface rises to automatically provide the drainage driving force of the main drain device.
  • the opening degree of the regulating valve can be reduced.
  • the hydration of the drainage water seal thus, the invention can increase the displacement, keep the water level change of the bottom oil groove small, and realize the utilization of the oil moisture
  • the purpose of the separator to control the oil level of the piston oil groove can be applied to the gas with a higher storage temperature, the gas value of the gas is increased while the cooling water is saved, and the use cost is low; the invention can be realized under the condition of increasing the limited investment
  • the oil-water separator has greatly improved drainage capacity and reduced the loss of sealing oil.
  • the range of use of the thin oil-sealed gas cabinet can be extended from normal temperature saturated gas to saturated gas with an inlet temperature of ⁇ 70 °C and connected in series on the gas pipeline. Gas cabinet area.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A-A-A of Figure 1;
  • FIG. 1 is a schematic structural view of the present invention
  • FIG. 2 is a cross-sectional view taken along line AAAA of FIG. 1.
  • the gas tank large displacement oil-water separator of the present embodiment includes a sealed separation chamber 1, a secondary separation chamber 2, and a recovery chamber. 3.
  • the sealed separation chamber 1 communicates with the oil groove 11 at the bottom of the gas cabinet.
  • the communication tube 7 is connected through the valve 23; the sealed separation chamber 1 is divided into the oil and gas water area Ia and the oil and gas area Ib through the overflow device.
  • the oil and gas zone Ib is located between the lower part of the oil level and the secondary separation chamber 2, and the secondary separation chamber 2 is connected to the recovery chamber 3, and can be connected by means of a communication hole, a communication pipe or an overflow pipe; and also includes a main drainage system,
  • the main drainage system comprises a main drain pipe 8 and a liquid level detecting assembly, the water inlet of the main drain pipe 8 is connected to the condensed water phase of the lower part of the oil and gas water zone Ia and the drain port is higher than the oil level of the oil and gas water zone Ia to form a water seal
  • the liquid level detecting component is disposed in the oil and gas water zone Ia for detecting the oil level or/and the water level.
  • the structure for detecting the water level is adopted; the main drain pipe 8 is provided with the oil level detected according to the liquid level detecting component or / Adjusted with water level Valve section 9; Meanwhile, the main drainage pipe 8 is also provided a manual valve 10, to facilitate maintenance or manual adjustment of the adjusting valve 9 has failed.
  • Ha is the oil depth of the oil and gas water area
  • Hb is the water depth of the oil and gas water area
  • Hc is the water surface height difference inside and outside the overflow device
  • Hd is the active height range of the oil-water interface in the oil and gas water area, ensuring the bottom oil groove
  • the liquid level can be kept normal, thus ensuring the oil level of the piston oil groove
  • He is the reserved margin for the oil-free drainage, and the oil-water separator oil overflow raft 13, the horizontal overflow pipe 14 and the vertical overflow pipe 15 should be ensured.
  • Hf is the water seal height of the main drain device when the oil-water separator is shut down, slightly lower than the oil level, ensuring the inside of the oil-water separator The gas is not leaked
  • Hg is the water seal height of the main drain pipe of the oil-water separator during normal operation, and the water seal height Hg can determine the actual height when the gas cabinet performs air test.
  • the oil and gas water zone Ia is a separation zone where oil, water and gas three phases coexist; the oil and gas zone Ib is a separation zone where the sealed oil and gas phase coexist in one separation.
  • the oil-water mixture flowing out from the oil groove 11 at the bottom of the gas cabinet enters the oil and gas water area Ia, and a small part of the gas condensed water is discharged through the overflow device; most of the condensed water is discharged by the main drain pipe through the regulating valve, and the regulating valve is discharged.
  • the opening degree control is realized by the automatic control system through the liquid level detecting component, and the oil level height Ha or/and the water level height Hb in the oil and gas water area Ia is measured to be controlled, and the opening degree of the regulating valve 9 is automatically adjusted so that the oil-water interface is within the Hd range.
  • the bottom oil groove 11 of the gas cabinet is connected to the oil and gas water area Ia through the U-shaped communicating device 6, and the U-shaped communicating device 6 is provided with a valve 21, and the diameter of the U-shaped connecting unit 6 is larger than DN100.
  • the example adopts DN250; the larger diameter can adapt to the larger displacement and slow down the change of the drainage flow rate, so that the fluctuation of the water level in the bottom oil groove is as small as possible, and the impact on the oil level fluctuation of the piston oil groove is reduced; Appropriately increase the space of the oil and gas water area Ia, so that the time for the larger amount of condensed water to stand and separate in the oil and gas water area Ia is not too short and fully separated.
  • a gas barrier 22 is disposed between the interface of the lower U-connector 6 of the bottom oil groove 11 of the gas cabinet and the oil-water interface; the oil barrier 22 is a baffle structure perpendicular or inclined to the side panel of the gas cabinet. Located in the lower part of the oil-water interface, the embodiment is a semi-circular baffle structure; the oil-repellent plate 22 prevents the sealing oil flowing from the gas cabinet side plate from being mixed with the condensed water more vigorously, and ensures that the lower layer of oil and water in the bottom oil groove is separated slightly. Complete condensed water, which is equivalent to increasing the standing time of the condensate drainage, plays a role in the initial separation of oil and water.
  • an automatic control system 24 is further included for receiving the oil level or/and the water level signal of the liquid level detecting component and issuing a command signal to the regulating valve according to the signal; realizing automatic control, eliminating human interference, and simultaneously reducing operation The strength of the work.
  • the overflow device includes a water overflow assembly and an oil overflow assembly that are sealed and isolated from each other, and the water overflow assembly includes a vertical overflow pipe 15 and a horizontal overflow pipe 14 disposed in the oil and gas water area Ia.
  • the upper end of the vertical overflow pipe 15 communicates with the gas phase of the oil and gas water zone Ia, the lower end communicates with the condensed water phase of the oil and gas water zone Ia, the middle part is provided with the overflow port 15a, and the horizontal overflow pipe 14 is connected to the overflow port and the oil water separator.
  • the oil overflow assembly includes the oil and gas water zone
  • the oil overflow ⁇ 13 between the Ia and the oil and gas zone Ib, the sluice of the oil overflow raft 13 is higher than the condensed water phase liquid level of the oil and gas water zone Ia; the overflow device has a simple and compact structure and a small footprint.
  • the overflow device is provided with an overflow height adjusting device, and the horizontal overflow pipe 14 is fixedly connected to the wall of the oil overflow weir 13 and bent downward to form a downward bent portion 14a, downward.
  • the bent portion 14a is slidably inserted into the vertical section 18a of the water separator drain passage 18;
  • the overflow height adjusting device comprises a bracket 17 and a vertical screw rod 16, and the bracket is fixedly disposed on the oil water separator housing, and the lower end of the vertical screw rod 16 It is fixedly connected to the horizontal overflow pipe 14 so as to be rotatable about its axis, and the upper end seal is threadedly engaged with the bracket 17 through the oil water separator as shown in the drawing; by adjusting the height of the overflow device, the bottom oil of the gas cabinet can be effectively adjusted.
  • the level of the ditch is provided with an overflow height adjusting device, and the horizontal overflow pipe 14 is fixedly connected to the wall of the oil overflow weir 13 and bent downward to form a downward
  • the liquid level detecting assembly includes a liquid level cylinder 4 vertically penetrating the oil and gas water area Ia and a liquid level gauge 5 disposed in the liquid level cylinder 4; the liquid level cylinder 4 structure and the oil and gas water area Ia are vertical Throughward, the gas, oil and water are connected in three phases in the liquid level cylinder to ensure the accuracy of the liquid level measurement.
  • the oil and gas zone Ib communicates with the secondary separation chamber 2 through the oil seal pipe 12 communicating with the bottom thereof and extending upward, thereby achieving a better sealing effect and ensuring normal operation of the oil water separator.

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Description

煤气柜大排水量油水分离器 技术领域
本发明涉及一种煤气柜附属设备，特别涉及一种煤气柜密封循环油的油水分离器。
 背景技术
煤气柜是贮存工业及民用煤气的钢制容器，由于承装煤气，因此，对于其密封性能要求较高。现有技术中，较为普遍的采用稀油密封的活塞式结构干式煤气柜，采用密封油闭路强制循环的方式不断向活塞油沟供给密封油，保持油沟油封高度，防止煤气外逸。供油装置包括供油泵及配管、预备油箱及溢流装置和活塞上的收油板，共同组成活塞密封油供给装置向活塞油沟供油，以保证活塞油沟的密封油位高度。
使用过程中，循环油由于与煤气接触较为充分，会有较多的冷凝水汇集并与循环油混合后进入煤气柜底部油沟，为了保证煤气柜的正常使用，需要在后续密封油循环前将冷凝水分离出去；为达到上述目的，密封油在循环前需通过油水分离器分离冷凝水。
由于现有技术中稀油密封型煤气柜储存的煤气通常需要喷水降温以满足稀油密封型煤气柜储存的要求，一般降温为约60℃的饱和煤气且在煤气管网煤气富余后才送入煤气柜储存。而煤气温度降低后煤气的热值相对变低，并且浪费大量的水。
而在稀油密封型煤气柜储气温度提高的情况下，煤气饱和含湿量将大幅增加。例如，以低海拔地区表压为10kPa的高炉煤气计算，20℃时煤气饱和含湿量约为18g/m3；30℃时煤气饱和含湿量约为32g/m3；50℃时煤气饱和含湿量约为100g/m3；60℃时煤气饱和含湿量约为176g/m3；72℃时煤气饱和含湿量约为356g/m3。由此可见，温度较高的煤气需要较大量的排水量。譬如，一座20万m3煤气柜有4个油水分离器，当其串联在煤气主管道上流量为25万m3/h的饱和煤气且进口煤气温度为72℃的情况下，单个油水分离器的排水量需求可达10t/h。而现有油水分离器是通过调节底部油沟油位来实现活塞油沟油位的控制并实现自动排水功能的，单个油水分离器排水能力仅为1 t/h；如果提高稀油密封型煤气柜储气温度，则排水量会变大，在此情况下如何保持底部油沟油水位的基本不变并保持油水分离效果成为亟待解决的问题。
因此，需要对现有的煤气柜油水分离器进行改进，能够增大排水量，保持底部油沟的水位变化很小，实现利用油水分离器来控制活塞油沟油位的目的，从而能够适用于储存温度较高的煤气，提高煤气热值的同时节约冷却水，节约使用成本。
 发明内容
有鉴于此，本发明的目的是提供一种煤气柜大排水量油水分离器，能够增大排水量，保持底部油沟的水位变化很小，实现利用油水分离器来控制活塞油沟油位的目的，从而能够适用于储存温度较高的煤气，提高煤气热值的同时节约冷却水，节约使用成本。
本发明的煤气柜大排水量油水分离器，包括密封分离腔、二次分离腔和回收腔，密封分离腔与煤气柜底部油沟连通，密封分离腔通过溢流装置分为油气水区和油气区，所述油气区位于其油位下部与二次分离腔之间连通，二次分离腔与回收腔连通，还包括主排水系统，所述主排水系统包括主排水管和液位检测组件，所述主排水管进水口连通于油气水区下部的冷凝水相且其外部排水口高于油气水区液位形成水封结构，所述液位检测组件设置于油气水区用于检测油位或/和水位，主排水管设置有根据液位检测组件检测的油位或/和水位进行调节的调节阀。
进一步，所述煤气柜底部油沟通过U型连通器连通于油气水区，所述U型连通器的管径大于DN100；
进一步，所述煤气柜底部油沟下部U型连通器接口与油水界面之间设置隔油板；
进一步，还包括自动控制系统，用于接收液位检测组件的油位或/和水位信号并根据该信号向调节阀发出命令信号；
进一步，所述溢流装置包括相互密封隔离的水溢流组件和油溢流组件，水溢流组件包括设置于油气水区的竖直溢流管和水平溢流管，所述竖直溢流管上端连通油气水区的气相，下端连通于油气水区的冷凝水相，中部设置溢流口，水平溢流管连通于溢流口和油水分离器排水通道之间；油溢流组件包括设置于油气水区和油气区之间的油溢流堰，所述油溢流堰的堰口高于油气水区的冷凝水相液位；
进一步，所述溢流装置设置溢流高度调节装置，所述水平溢流管穿过油溢流堰壁与其固定连接并向下折弯，向下折弯部滑动配合插入油水分离器排水通道的竖直段；溢流高度调节装置包括支架和竖直丝杆，支架固定设置于油水分离器外壳，竖直丝杆下端以可绕其轴线转动的方式固定连接于水平溢流管，上端密封穿过油水分离器外壳与支架螺纹配合；
进一步，所述液位检测组件包括与油气水区竖向贯通的液位筒和置于液位筒内的液位计；
进一步，油气区通过与其底部连通并向上延伸的油封管连通于二次分离腔。
 有益效果
本发明的煤气柜大排水量油水分离器，在油水分离器密封分离腔的油气水区设置主排水管和液位检测组件，液位检测组件的液位参数用于控制主排水管上的调节阀，实现自动调节；在正常生产情况下，大部分冷凝水通过主排水管外排，少部分冷凝水通过现有分离器内冷凝水溢流组件排出，油水界面达到分离器内冷凝水溢流组件时，调节阀的开度通过自动调节达到最大，油水界面较低时，逐渐减小调节阀开度，调整主排水流量，当油水界面低到主排水管的水封结构自动使主排水装置停止排水时，主排水管停止排水，油水界面升高则自动提供主排水装置的排水驱动力，同时，油水分离器的溢流排水水封水位高度降低时，可通过减小调节阀的开度实现排水水封的补水；由此可见，本发明能够增大排水量，保持底部油沟的水位变化很小，实现利用油水分离器来控制活塞油沟油位的目的，从而能够适用于储存温度较高的煤气，提高煤气热值的同时节约冷却水，使用成本低；本发明在增加有限投资的情况下，能够将现有油水分离器排水能力大大提高，减小密封油的损耗量，可将稀油密封型煤气柜的使用范围从常温饱和煤气拓展到进口温度为～70℃的饱和煤气且串联在煤气管道上的煤气柜领域。
 附图说明
下面结合附图和实施例对本发明作进一步描述。
图1为本发明的结构示意图；
图2为图1沿A-A-A-A向剖视图。
 本发明的实施方式
图1为本发明的结构示意图，图2为图1沿A-A-A-A向剖视图，如图所示：本实施例的煤气柜大排水量油水分离器，包括密封分离腔1、二次分离腔2和回收腔3，密封分离腔1与煤气柜底部油沟11连通，如图所示，通过设置阀门23的连通管7连通；密封分离腔1通过溢流装置分为油气水区Ⅰa和油气区Ⅰb，所述油气区Ⅰb位于其油位下部与二次分离腔2之间连通，二次分离腔2与回收腔3连通，可采用连通孔、连通管或者溢流的方式连通；还包括主排水系统，所述主排水系统包括主排水管8和液位检测组件，所述主排水管8进水口连通于油气水区Ⅰa下部的冷凝水相且其排水口高于油气水区Ⅰa液位形成水封结构，所述液位检测组件设置于油气水区Ⅰa用于检测油位或/和水位，本实施例采用检测水位的结构；主排水管8设置有根据液位检测组件检测的油位或/和水位进行调节的调节阀9；同时，主排水管8还设置手动阀10，方便调节阀9出现故障后检修或者手动调节。
如图所示，Ha为油气水区的油深；Hb为油气水区的水深；Hc为溢流装置内外的水面高差；Hd为油气水区的油水界面的活动高度范围，保证底部油沟液位能够保持正常，从而保证活塞油沟油位；He为排水不含油的预留余量，应保证油水分离器油溢流堰13、水平溢流管14和竖直溢流管15都上/下移90mm（即底部油沟油位升高/降低）主排水管不排出油；Hf为油水分离器停运时主排水装置的水封高度，略低于油位，保证油水分离器内煤气不外泄；Hg为正常运行时油水分离器主排水管的水封高度，水封高度Hg可在煤气柜进行空气试验时确定其实际高度。
油气水区Ⅰa为油、水和煤气三相共存的分离区；油气区Ⅰb为一次分离出的密封油和煤气两相共存的分离区。
从煤气柜底部油沟11流出的油水混合物与煤气进入油气水区Ⅰa，少部分煤气冷凝水通过溢流装置外排；大部分冷凝水则由主排水管经调节阀调节流量后排出，调节阀开度的控制通过液位检测组件由自动控制系统实现，测出油气水区Ⅰa内油位高度Ha或/和水位高度Hb来控制，调节阀9的开度自动调节使油水界面在Hd范围内波动，Hd达最大时，主排水装置排水量为零；Hd超过最大范围则主排水装置水封高度Hg自动使主排水装置停止排水（此时溢流装置的水溢流管也停止排水）；Hd变小则自动提供主排水装置的排水驱动压力；在油气水区Ⅰa静置分离后的密封油通过溢流装置进入油气区Ⅰb，并进入二次分离腔2和回收腔3后循环使用。
本实施例中，所述煤气柜底部油沟11通过U型连通器6连通于油气水区Ⅰa，U型连通器6设置阀门21，所述U型连通器6的管径大于DN100，本实施例采用DN250；较大管径可以适应于较大的排水量，并减缓排水流速的变化，从而使底部油沟水位的波动变化尽量小，减小对活塞油沟油位波动的影响；同时，可适当加大油气水区Ⅰa的空间，使较大量的冷凝水在油气水区Ⅰa内静置分离的时间不致太短，充分分离。
本实施例中，所述煤气柜底部油沟11下部U型连通器6接口与油水界面之间设置隔油板22；隔油板22为垂直于或倾斜于煤气柜侧板的挡板结构，位于油水界面下部，本实施例为半圆形挡板结构；隔油板22可防止从煤气柜侧板上流下的密封油与冷凝水较剧烈地混合，保证排出底部油沟内下层油水分离稍完全的冷凝水，相当于增加了冷凝排水的静置时间，起到油水初步分离的作用。
本实施例中，还包括自动控制系统24，用于接收液位检测组件的油位或/和水位信号并根据该信号向调节阀发出命令信号；实现自动控制，排除人为干扰，同时，减轻操作者的工作强度。
本实施例中，所述溢流装置包括相互密封隔离的水溢流组件和油溢流组件，水溢流组件包括设置于油气水区Ⅰa的竖直溢流管15和水平溢流管14，所述竖直溢流管15上端连通油气水区Ⅰa的气相，下端连通于油气水区Ⅰa的冷凝水相，中部设置溢流口15a，水平溢流管14连通于溢流口和油水分离器排水通道18之间；如图所示，排水通道18通过水封管19连通于排水仓20，排水仓20连通设置的带有排水阀的排水管25；油溢流组件包括设置于油气水区Ⅰa和油气区Ⅰb之间的油溢流堰13，所述油溢流堰13的堰口高于油气水区Ⅰa的冷凝水相液位；溢流装置结构简单紧凑，占地面积小。
本实施例中，所述溢流装置设置溢流高度调节装置，所述水平溢流管14穿过油溢流堰13壁与其固定连接并向下折弯形成向下折弯部14a，向下折弯部14a滑动配合插入油水分离器排水通道18设置的竖直段18a；溢流高度调节装置包括支架17和竖直丝杆16，支架固定设置于油水分离器外壳，竖直丝杆16下端以可绕其轴线转动的方式固定连接于水平溢流管14，上端密封穿过油水分离器与支架17螺纹配合，如图所示；通过调节溢流装置的高度，能够有效调节煤气柜底部油沟的液位。
本实施例中，所述液位检测组件包括与油气水区Ⅰa竖向贯通的液位筒4和置于液位筒4内的液位计5；液位筒4结构与油气水区Ⅰa竖向贯通，使气、油和水在液位筒内三相连通，保证液位测量的准确性。
本实施例中，油气区Ⅰb通过与其底部连通并向上延伸的油封管12连通于二次分离腔2，达到较好的密封效果，保证油水分离器正常工作。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或/和等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (8)

  1. 一种煤气柜大排水量油水分离器，包括密封分离腔、二次分离腔和回收腔，密封分离腔与煤气柜底部油沟连通，密封分离腔通过溢流装置分为油气水区和油气区，所述油气区位于其油位下部与二次分离腔之间连通，二次分离腔与回收腔连通，其特征在于：还包括主排水系统，所述主排水系统包括主排水管和液位检测组件，所述主排水管进水口连通于油气水区下部的冷凝水相且其排水口高于油气水区液位形成水封结构，所述液位检测组件设置于油气水区用于检测油位或/和水位，主排水管设置有根据液位检测组件检测的油位或/和水位进行调节的调节阀。
  2. 根据权利要求1所述的煤气柜大排水量油水分离器，其特征在于：所述煤气柜底部油沟通过U型连通器连通于油气水区，所述U型连通器的管径大于DN100。
  3. 根据权利要求2所述的煤气柜大排水量油水分离器，其特征在于：所述煤气柜底部油沟下部U型连通器接口与油水界面之间设置隔油板。
  4. 根据权利要求3所述的煤气柜大排水量油水分离器，其特征在于：还包括自动控制系统，用于接收液位检测组件的油位或/和水位信号并根据该信号向调节阀发出命令信号。
  5. 根据权利要求4所述的煤气柜大排水量油水分离器，其特征在于：所述溢流装置包括相互密封隔离的水溢流组件和油溢流组件，水溢流组件包括设置于油气水区的竖直溢流管和水平溢流管，所述竖直溢流管上端连通油气水区的气相，下端连通于油气水区的冷凝水相，中部设置溢流口，水平溢流管连通于溢流口和油水分离器排水通道之间；油溢流组件包括设置于油气水区和油气区之间的油溢流堰，所述油溢流堰的堰口高于油气水区的冷凝水相液位。
  6. 根据权利要求5所述的煤气柜大排水量油水分离器，其特征在于：所述溢流装置设置溢流高度调节装置，所述水平溢流管穿过油溢流堰壁与其固定连接并向下折弯，向下折弯部滑动配合插入油水分离器排水通道的竖直段；溢流高度调节装置包括支架和竖直丝杆，支架固定设置于油水分离器外壳，竖直丝杆下端以可绕其轴线转动的方式固定连接于水平溢流管，上端密封穿过油水分离器外壳与支架螺纹配合。
  7. 根据权利要求6所述的煤气柜大排水量油水分离器，其特征在于：所述液位检测组件包括与油气水区竖向贯通的液位筒和置于液位筒内的液位计。
  8. 根据权利要求7所述的煤气柜大排水量油水分离器，其特征在于：油气区通过与其底部连通并向上延伸的油封管连通于二次分离腔。
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