CN206715464U - Dual filter system - Google Patents

Abstract

The utility model provides a kind of dual filter system, including at least two filters and switching valve being connected in parallel, the filter includes filter chamber and filter core, filter core is provided with the filter chamber, the filter chamber includes first port and second port, the filter chamber first port is connected with switching valve, and the filter chamber second port is connected with oil-out, the oil inlet connection of the switching valve and filter.The utility model is filtered using dual filter system to the crude oil as absorbent, effectively solves the problems, such as that the oil strainer on oil supply line easily blocks, so as to ensure the continual work of gas recovery system for oil.The utility model solves the problems, such as：As long as absorbent viscosity is big or impurity is more, filter is easily blocked, can use technical scheme described in the utility model.

Description

Dual filter system

Technical field

Filter is the utility model is related to, more particularly to a kind of dual filter system.

Background technology

In the gas recovery system for oil that crude oil uses as absorbent, have a problem that, i.e., the oil filtering on oil supply line Device, easily block.Its reason is that the viscosity of crude oil is big, also contains the element such as particulate matter and sulphur, phosphorus, vanadium in crude oil in addition； Crude oil easily glues and blocked up, make the reduction of filter throughput, or even block completely by filter.

Therefore, it is necessary to which a kind of can effectively solve the problems, such as that the oil strainer on oil supply line easily blocks, system is ensured The dual filter system for lasting normal operation of uniting.

Utility model content

In place of the purpose of this utility model is to overcome above-mentioned deficiency, so as to provide a kind of dual filter system, Neng Gouyou Effect solves the problems, such as that the oil strainer on oil supply line easily blocks, so as to ensure the duplex of the normal operation of systems stay Oil removing filter.

According to technical scheme provided by the utility model, dual filter system includes at least two filters being connected in parallel And switching valve, the filter include filter chamber and filter core, be provided with filter core in the filter chamber, the filter chamber include first port and Second port, the filter chamber first port are connected with switching valve, and the filter chamber second port is connected with oil-out, the switching valve It is connected with the oil inlet of filter.

Preferably, the switching valve uses balanced valve.

Preferably, the filter also includes closure and manually-operated gate, and air bleeding valve is additionally provided with the top of the closure.

Preferably, the filter chamber second port is connected by the manually-operated gate with oil-out.

Preferably, the oil inlet is additionally provided with device for pressure measurement.

Preferably, the oil-out is additionally provided with device for pressure measurement.

Preferably, the switching valve also includes reversing handle, and the reversing handle is rotatable.

Preferably, internal diameter >=DN50 of the conversion valve.

Preferably, the device for pressure measurement shows the pressure differential of oil inlet and outlet by instrument.

The beneficial effects of the utility model are：The crude oil as absorbent is filtered using dual filter system, Effectively solve the problems, such as that the oil strainer on oil supply line easily blocks, so as to ensure the continual work of gas recovery system for oil Make.The utility model solves the problems, such as：As long as absorbent viscosity is big or impurity is more, filter is easily blocked, can use this reality With new described technical scheme.

It should be appreciated that foregoing description substantially and follow-up description in detail are exemplary illustration and explanation, should not As the limitation to the claimed content of the utility model.

Brief description of the drawings

With reference to the accompanying drawing enclosed, the more purposes of the utility model, function and advantage will pass through the utility model embodiment party The described below of formula is illustrated, wherein：

Fig. 1 shows the structural representation of the utility model dual filter system.

Embodiment

By reference to one exemplary embodiment, the purpose of this utility model and function and for realizing these purposes and function Method will be illustrated.However, the utility model is not limited to one exemplary embodiment as disclosed below；Can be by not It is realized with form.The essence of specification is only to aid in various equivalent modifications Integrated Understanding the utility model Detail.

Hereinafter, embodiment of the present utility model will be described with reference to the drawings.In the accompanying drawings, identical reference represents Same or similar part, or same or like step.

Referring to Fig. 1, Fig. 1 shows the structural representation of the utility model dual filter system, and dual filter system includes Two filters being connected in parallel, two shunt filters are respectively the filter 2 of first filter 1 and second；First filtering Device 1 includes filter chamber 11 and filter core 13, is provided with filter core 13 in the filter chamber 11, and the filter core 13 includes first port 131 and the Two-port netwerk 132, the first port 131 of filter core 13 are connected with switching valve 3, and the second port 132 of filter core 13 connects with oil-out Connect, the switching valve 3 is connected with the oil inlet of filter.

Second filter 2 includes filter chamber 21 and filter core 23, and filter core 23, the filter core 23 are provided with the filter chamber 21 Including first port 231 and second port 232, the first port 231 of filter core 23 is connected with switching valve 3, the filter core 2 second Port 232 is connected with oil-out, and the switching valve 4 is connected with the oil inlet of filter 3.

In a preferred embodiment, the first filter 1 also includes closure 12 and manually-operated gate 14, the closure 12 Top is additionally provided with air bleeding valve 121.Similarly, second filter 2 also includes closure 22 and manually-operated gate 24, the sealing The top of lid 22 is additionally provided with air bleeding valve 221.

The filter chamber second port is connected by the manually-operated gate with oil-out.

The oil inlet and oil-out are additionally provided with device for pressure measurement 4, for measuring the pressure of oil-out, when it is described enter , can be to pull down cleaning to filter core when the pressure drop of hydraulic fluid port and the oil-out reaches setting.The switching valve 3 also includes commutation Handle, the reversing handle are rotatable.

The internal diameter of the switching valve 3 selects more than DN50；The device for pressure measurement 4 shows oil inlet and outlet by instrument Pressure differential.

In one embodiment, the utility model duplex strainer is in normal work, one of filter work, separately One filter is vacant, and operation certain time (depending on live carrying out practically situation), two filters switch over, crude oil Into filter vacant before；Cleaning work is carried out to the filter run before simultaneously, so as to ensure systems stay just Often operation.

Pressure oil enters from the oil inlet of filter, and converted valve 3 enters the filter chamber from the first port 131 of filter chamber 13 11, manually valve 14 enters fuel feeding line to the cleansing oil after the filter core 13 in filter chamber 11 filters from oil-out.Work as oil inlet When the pressure differential shown with oil-out instrument reaches setting, another filter core chamber is transformed into by switching valve 3 and worked, then to work The filter core chamber made is cleaned, maintained, standby to make.

In one embodiment, the switching valve being connected with filter core first port uses balanced valve, and the balanced valve changes To concrete operations it is as follows：Balanced valve is first turned on, reversing handle is rotated by 90 °, turns off balanced valve, completes a commutation Process.

Filter element cleaning is specific as follows with replacement operation：When pressure drop reaches setting, operated by above-mentioned commutation sequence, setting The air bleeding valve 221 put on the closure 22 of filter 2 is opened, and is then opened the closure 22 of filter 2 and is pulled down filter core 23, uses After gasoline or other cleaning crude oil solvent soaking filter cores 23, cleaned with banister brush, (opened and be vented by assembly and disassembly order after having cleaned Valve 221, open the closure 22 of filter 2 and load onto filter core 23, then open balanced valve, reversing handle is rotated by 90 °, turn off flat Weighing apparatus valve) filter core 23 and strainer cover 22 are loaded onto, it is standby to make.

The utility model is filtered using dual filter system to the crude oil as absorbent, effectively solves oil supply line On oil strainer the problem of easily blocking, so as to ensure the continual work of gas recovery system for oil.The utility model solution Certainly the problem of：As long as absorbent viscosity is big or impurity is more, filter is easily blocked, can be used, however it is not limited to above-described embodiment.

With reference to the explanation of the present utility model disclosed here and practice, other embodiment of the present utility model is for this area Technical staff will be readily apparent and understand.Illustrate and embodiment be to be considered only as it is exemplary, it is of the present utility model really Scope and spirit are defined in the claims.

Claims (9)

1. A kind of 1. dual filter system, it is characterised in that：Including at least two filters and switching valve being connected in parallel, the mistake Filter includes filter chamber and filter core, and filter core is provided with the filter chamber, and the filter chamber includes first port and second port, the filter Chamber first port is connected with switching valve, and the filter chamber second port is connected with oil-out, the oil-feed of the switching valve and filter Mouth connection.
2. 2. dual filter system according to claim 1, it is characterised in that the switching valve uses balanced valve.
3. 3. dual filter system according to claim 1, it is characterised in that the filter also includes closure and hand-operated valve Door, the closure top are additionally provided with air bleeding valve.
4. 4. dual filter system according to claim 3, it is characterised in that the filter chamber second port passes through the hand-operated valve Door is connected with oil-out.
5. 5. dual filter system according to claim 1, it is characterised in that the oil inlet is additionally provided with pressure measxurement dress Put.
6. 6. dual filter system according to claim 1, it is characterised in that the oil-out is additionally provided with pressure measxurement dress Put.
7. 7. dual filter system according to claim 1, it is characterised in that the switching valve also includes reversing handle, described Reversing handle is rotatable.
8. 8. dual filter system according to claim 1, it is characterised in that internal diameter >=DN50 of the switching valve.
9. 9. according to the dual filter system of claim 5 or 6, it is characterised in that the device for pressure measurement is shown by instrument Show the pressure differential of oil inlet and outlet.