CN212292918U - Preprocessing device for removing oil and iron from condensed water - Google Patents

Abstract

The utility model discloses a condensate deoiling preprocessing device for deironing belongs to condensate treatment facility, the utility model discloses the technical problem who solves for how to improve the quality of condensate to the processing of condensate under the high temperature operating mode, carries out the reutilization, realizes energy saving and emission reduction, and the technical scheme of adoption is: the structure of the device comprises a tank body, wherein a fixed pore plate and a support bracket are arranged in the tank body at intervals, the fixed pore plate and the support bracket divide a cavity in the tank body into an oil-water separation zone, a filtering zone and a water outlet buffer zone in sequence, an oil collector is arranged at the top of the oil-water separation zone, and an oil discharge pipe is arranged at the top of the oil collector; a first sewage discharge pipe is arranged at the bottom of the oil-water separation zone; a plurality of filtering components are arranged in the filtering area at intervals, an exhaust pipe is arranged at the top of the filtering area, and a second blow-off pipe is arranged at the bottom of the filtering area; the side wall of one end of the tank body is provided with a water inlet pipe, the other end of the tank body is provided with a water outlet pipe, the water outlet pipe is positioned in the water outlet buffer area, and the water inlet pipe is positioned in the oil-water separation area.

Description

Preprocessing device for removing oil and iron from condensed water

Technical Field

The utility model relates to a condensate treatment facility, specifically speaking are condensate deoiling preprocessing device for deironing.

Background

Steam is used as an energy source with wide application, is often used as a heat source or a power source in industrial and civil engineering, is converted into liquid condensed water after releasing heat energy or doing work, still has high heat energy and relatively good water quality, and is optimally used as boiler make-up water. However, in the steam use and condensed water delivery processes, the condensed water contains certain iron ions, iron compounds and silicon dioxide, especially in petrochemical and chemical industries, due to equipment leakage or other reasons, the condensed water generally contains a small amount of organic matters (hydrocarbons, esters and other substances, commonly called as oil), and most of the condensed water exists in an emulsified state, so that the condensed water cannot be directly used as boiler make-up water, and needs to be purified to meet the requirements so as to be delivered to a deaerator of a boiler. At present, various process routes are available for the fine treatment of normal-temperature condensed water at home and abroad, but the processes for high-temperature treatment are not many and have various defects. Therefore, how to treat the condensed water under the high-temperature working condition, improve the quality of the condensed water, perform secondary utilization and realize energy conservation and emission reduction is a problem to be solved urgently at present.

Patent document No. CN100378013C discloses a condensate treatment system, which comprises a raw water tank, at least one ultra-fine filter, at least one fiber adsorption tank, a purified water tank, an online water quality screening system, a DCS distributed control system, pipelines and valves, and is characterized in that: treating the condensed water under the condition that the temperature of the condensed water is not reduced to the normal temperature, removing oil, high-valence metal ions and particulate matters in the condensed water, and enabling the temperature of the condensed water entering the purified water tank to be more than or equal to 85 ℃ after treatment; the system is regenerated by using steam at 160-250 ℃ by adopting a semi-regeneration method. This technical scheme adopts the two-stage to handle, and the ultrafilter that inorganic ceramic membrane was made is adopted to the first order, and the second level adopts the fibre adsorption tanks to degrease, nevertheless because ceramic membrane can appear silicon under high temperature, causes the secondary pollution of condensate water, and need partly regenerate once to the packing in the fibre adsorption tanks every day, and the operation is inconvenient, and the working costs is high.

Patent document No. CN201148365Y discloses a composite membrane oil and iron removal device, which comprises a composite membrane filter and a membrane laying box connected by a pipeline, wherein a program-controlled variable-frequency membrane laying pump is connected between the membrane laying box and the composite membrane filter; the composite membrane filter is provided with an air outlet hole which is connected with a valve controlled by a program to exhaust air; and a pneumatic stirrer is arranged in the film laying box and is communicated with a compressed air pipe. Although the technical scheme can remove oil and iron, due to the characteristic of the internal design structure of the composite membrane filter, the treatment load of a single device is small, a plurality of devices are required to be connected in parallel when the flow is large, and the like; an outlet pipeline is arranged at the top, so that the overhaul and the maintenance are inconvenient, the installation height requirement is high, and the like; the filter element adopts a trapezoidal sintering form, powder is pressed on the surface of the filter element by pressure difference, the resistance is large, the energy consumption is high, the operation period is short, and the operation workload is large; when the film is paved, only one film paving box and one film paving pump are needed, the film is gradually added manually, and the operation amount is large; the stirrer adopts compressed air, and gas dissolved in the membrane coating liquid is easily accumulated in the membrane filter, so that normal use is influenced.

Disclosure of Invention

The technical task of the utility model is to provide a condensate deoiling preprocessing device for deironing solves how to improve the quality of condensate to the processing of condensate under the high temperature operating mode, carries out reutilization, realizes energy saving and emission reduction's problem.

The technical task of the utility model is realized according to the following mode, a condensate water deoiling is preprocessing device for deironing, including a tank body, the internal interval of tank is provided with fixed orifice plate and support frame, fixed orifice plate and support frame divide the internal cavity of tank into oil-water separation zone, filtering zone and play water buffer zone in proper order, oil collector is arranged at the top of oil-water separation zone, the oil collector is located the lateral wall department at the top of tank and the internal cavity of tank is linked together, the oil collector top is provided with the oil drain pipe; the bottom of the oil-water separation zone is provided with a first drainage pipe which is positioned at the side wall of the bottom of the tank body and communicated with the inner cavity of the tank body; the support bracket is a bracket body structure consisting of a plurality of support rods which are arranged in a crossed manner, and can be in a cross shape.

A plurality of filtering components are arranged in the filtering area at intervals, and two ends of each filtering component are fixedly arranged on the fixed pore plate and the supporting bracket respectively; the top of the filtering area is provided with an exhaust pipe, the exhaust pipe is positioned at the side wall of the top of the tank body and is communicated with the inner cavity of the tank body, the bottom of the filtering area is provided with a second blow-off pipe, and the second blow-off pipe is positioned at the side wall of the bottom of the tank body and is communicated with the inner cavity of the tank body;

the side wall of one end of the tank body is provided with a water inlet pipe, the other end of the tank body is provided with a water outlet pipe, the water outlet pipe is positioned in the water outlet buffer area, and the water inlet pipe is positioned in the oil-water separation area.

Preferably, the filter assembly comprises a filter element, a mesh cage is sleeved outside the filter element, one end of the mesh cage is connected with the fixed pore plate in a welded mode, and the other end of the mesh cage is connected with the support bracket in a welded mode.

Preferably, the cylinder-shaped cylinder mould is provided with uniformly arranged meshes on the wall.

More preferably, the mesh openings are circular.

Preferably, the cylinder mould is formed by rolling and welding a stainless steel plate with a punched hole, a longitudinal welding line is formed in the process that the stainless steel plate is welded into a cylinder, circular welding lines are reserved at two ends of the stainless steel plate, and meshes are not formed in the longitudinal welding line and the circular welding lines.

Preferably, the filter core adopts deironing filter core or deoiling deironing filter core.

Preferably, the side wall of the oil collector is provided with at least two sight glasses, so that the liquid level boundary of oil and water can be observed conveniently.

Preferably, an oil-water interface instrument is arranged on the upper end face of the oil collector and is positioned on one side of the oil discharge pipe, so that the position of the oil-water interface can be conveniently monitored in real time.

Preferably, the fixed orifice plate is provided with a plurality of water through holes at intervals, and the water through holes are circular.

Preferably, a first blow-off valve is arranged on the first blow-off pipe, a second blow-off valve is arranged on the second blow-off pipe, a water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, an exhaust valve is arranged on the exhaust pipe, and an oil exhaust valve is arranged on the oil exhaust pipe.

The utility model discloses a condensate water deoiling preprocessing device for deironing has following advantage:

the utility model is mainly used for purifying the condensed water in petrochemical and chemical plant areas, improving the quality of the condensed water, performing secondary utilization, saving energy and reducing emission, further reducing the operation cost of enterprises and improving the management level of the enterprises;

the utility model can remove the suspended matters, solid particles, rust, oil and other impurities and pollutants in the condensed water at the same time, has good purification effect, and the outlet water quality can reach the design requirement; the condensed water has wide application range, high temperature resistance, long running period and low filtration resistance, and can be treated at 90-120 ℃; the operation elasticity is large, the range value is 0-120%, and the method is suitable for various flow working conditions; the operation cost is low, so that the condensed water treatment is more economical, and the energy-saving technology is more favorably popularized in a large range;

the utility model integrates oil-water separation and filtration deferrization together by adopting the simultaneous treatment and load uniform distribution technology, greatly improves the treatment capacity and treatment effect of oil removal and deferrization, and solves the contradiction between treatment flow and treatment effect;

and (IV) a stainless steel mesh cage is sleeved outside the filter element for protection and support, so that the filtering efficiency is improved, the service life of the filter element is prolonged, and the cost is saved.

The utility model has the characteristics of reasonable in design, simple structure, easily processing, small, convenient to use, a thing is multi-purpose etc, therefore, has fine popularization and use value.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a pretreatment device for removing oil and iron from condensed water;

FIG. 2 is a schematic structural view of a netpen;

FIG. 3 is a schematic structural view of a fixed orifice plate;

FIG. 4 is a schematic view of the horizontal type of FIG. 1;

fig. 5 is a schematic view of the vertical type of fig. 1.

In the figure: 1. the oil-water separation device comprises a tank body, 2, a fixed pore plate, 3, a support bracket, 4, an oil-water separation zone, 5, a filtering zone, 6, a water outlet buffer zone, 7, an oil collector, 8, a first sewage discharge pipe, 9, an exhaust pipe, 10, a second sewage discharge pipe, 11, a water inlet pipe, 12, a water outlet pipe, 13, a filter element, 14, a mesh cage, 15, meshes, 16, a longitudinal welding line, 17, an annular welding line, 18, a sight glass, 19, an oil-water interface instrument, 20, a water passing hole, 21, a first sewage discharge valve, 22, a second sewage discharge valve, 23, a water inlet valve, 24, a water outlet valve, 25, an exhaust valve, 26, an oil discharge.

Detailed Description

The pretreatment device for removing oil and iron from condensed water according to the present invention will be described in detail below with reference to the drawings and specific examples.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and for simplification of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in the attached drawings 1 and 3, the structure of the pretreatment device for removing oil and iron from condensed water of the utility model comprises a tank body 1, wherein the tank body 1 is cylindrical, and the two ends of the cylindrical tank body 1 are oval. Fixed orifice plate 2 and support bracket 3 are installed to the interval in jar body 1, and fixed orifice plate 2 interval has been seted up a plurality of water holes 20 of crossing, crosses water hole 20 and is just circular. The supporting bracket 3 and the fixed pore plate 2 divide the inner cavity of the tank body 1 into an oil-water separation zone 4, a filtering zone 5 and a water outlet buffer zone 6 in sequence, the top of the oil-water separation zone 4 is provided with an oil collector 7, the oil collector 7 is cylindrical, the cylindrical oil collector 7 is positioned on the side wall of the top of the tank body 1, the inner cavity of the tank body 1 is communicated, the top of the oil collector 7 is provided with an oil discharge pipe 26, and the oil discharge pipe 26 is provided with an oil discharge valve 27; two sight glasses 18 are arranged on the side wall of the oil collector 7, so that the liquid level boundary of oil and water can be conveniently observed. An oil-water interface instrument 19 is arranged on the upper end surface of the oil collector 7, and the oil-water interface instrument 19 is positioned at one side of the oil discharge pipe 26, so that the position of an oil-water interface can be conveniently monitored in real time. A first drain pipe 8 is arranged at the bottom of the oil-water separation zone 4, a first drain valve 21 is arranged on the first drain pipe 8, and the first drain pipe 8 is positioned on the side wall of the bottom of the tank body 1 and communicated with the inner cavity of the tank body 1; a plurality of filtering components are arranged in the filtering area 5 at intervals, and two ends of each filtering component are fixedly arranged on the fixed pore plate 2 and the supporting bracket 3 respectively; an exhaust pipe 9 is arranged at the top of the filtering area 5, an exhaust valve 25 is arranged on the exhaust pipe 9, the exhaust pipe 9 is positioned at the side wall of the top of the tank body 1, the inner cavity of the tank body 1 is communicated, a drain pipe II 10 is arranged at the bottom of the filtering area 5, a drain valve II 22 is arranged on the drain pipe II 10, and the drain pipe II 10 is positioned at the side wall of the bottom of the tank body 1 and is communicated with the inner cavity of the tank body 1; a water inlet pipe 11 is arranged on the side wall of one end of the tank body 1, a water inlet valve 23 is arranged on the water inlet pipe 11, a water outlet pipe 12 is arranged on the other end of the tank body 1, and a water outlet valve 24 is arranged on the water outlet pipe 12; the water inlet pipe 11 is positioned in the oil-water separation zone 4, and the water outlet pipe 12 is positioned in the water outlet buffer zone 6. The filter assembly comprises a filter element 13, a mesh cage 14 is sleeved outside the filter element 13, one end of the mesh cage 14 is connected with the fixed pore plate 2 in a welded mode, and the other end of the mesh cage 14 is connected with the support bracket 3 in a welded mode. The filter element 13 adopts an iron removal filter element or an oil removal and iron removal filter element, and the iron removal filter element or the oil removal and iron removal filter element adopts a large-flow folding or backwashing filter element. As shown in fig. 2, the cylinder-shaped cylinder. The net cage 15 is a cylindrical net cage 15 formed by rolling and welding a stainless steel plate with a punched hole, a longitudinal welding line 16 is formed in the process that the stainless steel plate is welded into a cylinder, annular welding lines 17 are reserved at two ends of the stainless steel plate, and meshes are not formed in the positions of the longitudinal welding line 16 and the annular welding lines 17.

The tank body of the utility model has two working states of vertical type or horizontal type, as shown in attached figures 3 and 4.

The working process is as follows: when the utility model discloses be in the running state, the pending condensate water that comes from the upper reaches gets into jar body 1 from inlet tube 11 in, because the density difference of oil and water, carry out the oil-water separation earlier in oil water separation district 4, the rate of liquid drop subsides or the come-up is directly proportional with the square of the diameter of the two kinds of liquid density differences of profit and liquid drop, the oil catcher 7 at top floats on the less oil of density, and the great water of density gets into the deironing deoiling filter core 13 inboard of filtering area 5 through water hole 20 on the fixed orifice plate 2, iron and suspended solid in the condensate water, the solid particle etc. is intercepted at deironing deoiling filter core 13 inboardly, the clean water is by deironing deoiling filter core 13 inside outwards through mesh 15 and the support holder 3 inflow water buffer 6 of cylinder mould 14, the clean water gets into next processing procedure from outlet pipe 12 discharges again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A pretreatment device for removing oil and iron from condensed water comprises a tank body and is characterized in that a fixed pore plate and a supporting bracket are arranged in the tank body at intervals, an inner cavity of the tank body is sequentially divided into an oil-water separation zone, a filtering zone and an effluent buffer zone by the fixed pore plate and the supporting bracket, an oil collector is arranged at the top of the oil-water separation zone and is positioned on the side wall of the top of the tank body, and an oil discharge pipe is arranged at the top of the oil collector; a first drain pipe is arranged at the bottom of the oil-water separation zone and is positioned on the side wall of the bottom of the tank body;

a plurality of filtering components are arranged in the filtering area at intervals, and two ends of each filtering component are fixedly arranged on the fixed pore plate and the supporting bracket respectively; the top of the filtering area is provided with an exhaust pipe, the exhaust pipe is positioned on the side wall of the top of the tank body, the bottom of the filtering area is provided with a second sewage discharge pipe, and the second sewage discharge pipe is positioned on the side wall of the bottom of the tank body;

the side wall of one end of the tank body is provided with a water inlet pipe, the other end of the tank body is provided with a water outlet pipe, the water outlet pipe is positioned in the water outlet buffer area, and the water inlet pipe is positioned in the oil-water separation area.

2. The pretreatment device for removing oil and iron from condensed water according to claim 1, wherein the filter assembly comprises a filter element, a mesh cage is sleeved outside the filter element, one end of the mesh cage is welded with the fixed orifice plate, and the other end of the mesh cage is welded with the support bracket.

3. The pretreatment device for removing oil and iron from condensed water according to claim 2, wherein the cylinder-shaped mesh cage is provided with uniformly arranged meshes on the wall thereof.

4. The pretreatment device for removing oil and iron from condensed water according to claim 3, wherein the meshes are circular.

5. The pretreatment device for removing oil and iron from condensed water according to claim 2, 3 or 4, wherein the mesh cage is a cylindrical mesh cage formed by rolling and welding stainless steel plates with punched holes.

6. The pretreatment device for removing oil and iron from condensed water according to claim 2, wherein the filter element is an iron removal filter element or an oil and iron removal filter element.

7. The pretreatment device for removing oil and iron from condensed water according to claim 1, wherein at least two sight glasses are arranged on the side wall of the oil collector.

8. The pretreatment device for removing oil and iron from condensed water according to claim 1 or 7, wherein an oil-water interface instrument is arranged on the upper end surface of the oil collector and is positioned on one side of the oil discharge pipe.

9. The pretreatment device for removing oil and iron from condensed water according to claim 1, wherein the fixed orifice plate is provided with a plurality of water through holes at intervals, and the water through holes are circular.

10. The pretreatment device for removing oil and iron from condensed water according to claim 1, wherein a first blowdown valve is arranged on the first blowdown pipe, a second blowdown valve is arranged on the second blowdown pipe, a water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, an exhaust valve is arranged on the exhaust pipe, and an oil discharge valve is arranged on the oil discharge pipe.

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