CN201271542Y - Back washing type high pressure filter station - Google Patents

Abstract

Disclosed is a back washing high pressure filter station, wherein, a back washing module is arranged on an assembly box body, a valve body of the back washing module is equipped with an input channel, an output channel, a back washing channel, a left filtration chamber inlet and a right filtration chamber inlet, wherein, valve seats, valve patches and steel balls are placed at the back washing channel and the left filtration chamber inlet and the right filtration chamber inlet, the steel balls are respectively matched with a left operating mechanism and a right operating mechanism, a left back washing switch handle and a right back washing switch handle are fixed on the left operating mechanism and the right operating mechanism respectively, the steel balls are provided with L-shaped channels, the left filtration chamber inlet and the right filtration chamber inlet are connected with the left filtration chamber and the right filtration chamber, the left end and the right end of the back washing channel are respectively connected with a left filtration chamber back washing outlet joint and a right filtration chamber back washing outlet joint, the input channel is connected with an input port joint, the output channel is connected with an outlet port joint, the left filtration chamber back washing outlet joint and the right filtration chamber back washing outlet joint are connected with each other by a pipeline and are provided with a pre-posing one-way valve, an input globe stop valve is positioned at the front of the input port joint, and an output globe stop valve is positioned at the back of the outlet port joint. The filter station controls the intrinsic cleanliness of an emulsified mixture of a working medium in a hydraulic system of a hydraulic support of fully mechanized coal mining in underground in coal mines in terms of sources.

Description

Backwash high pressure filtering station

Technical field

The utility model relates to a kind of backwash high pressure filtering device that is used for comprehensive mining hydraulic bracket hydraulic system under the coal mine, refers in particular to a kind of backwash high pressure filtering device.

Technical background

The hydraulic system that comprehensive mining hydraulic bracket adopts under the coal mine, be in down-hole coal ash high pollution situation, hydraulic system source emulsion tank very easily is subjected to the coal ash powder dust pollution, cause heel and toe wear or damage for each seal of hydraulic system, cause hydraulic system unit time internal fault to take place frequently, cause very big harm for the fully-mechanized mining equipment operate as normal.Existing coal production enterprise, hydraulic medium pollution control engineering technological means mainly concentrates on auxilliary establishing system miniaturization filtration and washing engineering device on each function valve member assembly of subsystem application section, and this resolution system is used section pollution control problem.Because auxiliary project engineering technique device is limited by function valve member volume conditions, can not assist and join big traffic engineering device, the pollution problem of hydraulic pressure total system can not be solved in control, certainly will cause whole hydraulic system internal contamination substrate concentration more and more higher, cause subsystem function valve member responsibilities function and dual the increasing the weight of of hydraulic medium filtering function live load.Because the low capacity filter is faced the more and more higher hydraulic medium of pollution concentration directly, the normal mechanical function must be subjected to grievous injury, very easily causes various seal heel and toe wears or damage, influences system's operate as normal efficient.

The utility model content

The purpose of this utility model is to provide a kind of backwash high pressure filtering station, carrying out initial one-level working media from the hydraulic system source filters, improve the inherent cleannes of hydraulic work system medium emulsion from source control, for hydraulic system provides comparatively desirable cleaning medium emulsion, alleviate each element filters medium live load of subsystem, further carry the job stability of high comprehensive mining hydraulic system, reduce each class component sealing maintenance engineering, improve unit labor productivity, reduce system failure incidence, prolong the service life of each class component of hydraulic system.

For achieving the above object, the utility model takes solution to be: a kind of backwash high pressure filtering station, the backwash module is housed on the assembly casing, the valve body of backwash module has input channel, output channel, the backwash passage, filter chamber, left side inlet and right filter chamber inlet, valve seat is placed in backwash passage and porch, left filter chamber, valve pad and steel ball, steel ball and left operating mechanism are supporting, fix left backwash switch knob on the operating mechanism of a left side, valve seat is placed in backwash passage and porch, right filter chamber, valve pad and steel ball, steel ball and right operating mechanism are supporting, fix right backwash switch knob on the right operating mechanism, have L shaped passage in the steel ball, filter chamber, left side inlet connects left filter chamber, right filter chamber inlet connects right filter chamber, backwash passage left end connects left filter chamber's backwash outlet connection, backwash passage right-hand member connects right filter chamber's backwash outlet connection, input channel connects the input port joint, output channel connects the delivery outlet joint, filter chamber's backwash outlet connection in a left side is connected and preposition check valve by pipeline with right filter chamber's backwash outlet connection, the spherical stop valve of the preposition input of input port joint, the spherical stop valve of the rearmounted output of delivery outlet joint.

The duty of filter chamber is to control each other dielectric fluid flow path direction by backwash switch knob and operating mechanism.In normal operation, liquid medium is by the filter chamber that flows through of L passage in the steel ball in the valve body, from output channel output, for the hydraulic system applications section provides the working media liquid of cleaning through primary filter.Because during flow of high-pressure fluid process filter chamber, mechanical admixture in the liquid is with filtration resistance, growth along with service time, mechanical admixture is more and more in the filter chamber, the pressure at two ends difference of filter element is increasing in the filter chamber, when pressure reduction reaches certain numerical value, then needs to carry out the backwash working procedure, otherwise will influence system works efficient, then cause failure accident when serious.Manually carry out the mutual backwash of filter chamber by switch knob.Drive the operating mechanism that is controlled in the valve body by the switch switch knob.Rotate an operating mechanism input side will be closed to the inlet of next filter chamber, meanwhile, the backwash of pent filter chamber is activated.The medium that need purify flows through the filter chamber in this work fully in backwash process.The medium that has been filtered of a part, through outlet side flow to open etc. in the filter chamber subject to backwash, flow through round about and the impurity of the inside taken out of by the backwash outlet.The backwash of two filter chambers often hockets, and that is to say on-streamly ceaselessly to clean two filter chambers.

This flushing high pressure filtering station, carrying out initial one-level working media from the hydraulic system source filters, improve the inherent cleannes of hydraulic work system medium emulsion from source control, for hydraulic system provides comparatively desirable cleaning medium emulsion, alleviate each element filters medium live load of subsystem, further carry the job stability of high comprehensive mining hydraulic system, reduce each class component sealing maintenance engineering, improve unit labor productivity, reduce system failure incidence, prolong the service life of each class component of hydraulic system.

Description of drawings

Fig. 1 is present embodiment (removing a assembly casing) structural representation.Fig. 2 is a present embodiment hydraulic system schematic diagram.Fig. 3 is the part sectional structure schematic diagram with manometric backwash module.Fig. 4 is the A-A cutaway view among Fig. 3.Fig. 5 is the work of right filter chamber, operating mechanism handle position figure when left filter chamber carries out backwash.Fig. 6 is operating mechanism handle position figure when in running order of two filter chambers.Fig. 7 is the work of left filter chamber, operating mechanism handle position figure when right filter chamber carries out backwash.Fig. 8 is a backwash module normal filtration fundamental diagram.Fig. 9 is that filter chamber, a backwash module left side carries out the backwash fundamental diagram.Figure 10 is that the right filter chamber of backwash module carries out the backwash fundamental diagram.

Among the figure: 1, check valve, 2, import spherical stop valve, 3, the input pressure table, 4, the backwash module, 4-1, the input port joint, 4-2, left side filter chamber's backwash outlet connection, 4-3, valve body, 4-4, left side operating mechanism, 4-5, right operating mechanism, 4-6, right filter chamber's backwash outlet connection, 4-7, the delivery outlet joint, 4-8, right backwash switch knob, 4-9, right filter chamber, 4-10, gland, 4-11, retainer ring, 4-12, cylinder barrel, 4-13, filter chamber, a left side, 4-14, element kit, 4-15, left side backwash switch knob, 4-16, valve pad, 4-17, steel ball, 4-18, valve seat, 5, delivery gauge, 6, export spherical stop valve.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Referring to Fig. 1, Fig. 3 and Fig. 4, a kind of backwash high pressure filtering station, backwash module 4 is housed on the assembly casing, the valve body 4-3 of backwash module 4 has input channel, output channel, the backwash passage, filter chamber, left side inlet and right filter chamber inlet, valve seat 4-18 is placed in backwash passage and porch, left filter chamber, valve pad 4-16 and steel ball 4-17, steel ball 4-17 and left operating mechanism 4-4 are supporting, left side operating mechanism 4-4 goes up fixing left backwash switch knob 4-15, valve seat 4-18 is placed in backwash passage and porch, right filter chamber, valve pad 4-16 and steel ball 4-17, steel ball 4-17 and right operating mechanism 4-5 are supporting, right operating mechanism 4-5 goes up fixing right backwash switch knob 4-8, have L shaped passage among the steel ball 4-17, filter chamber, left side inlet connects the left 4-13 of filter chamber, right filter chamber inlet connects the right 4-9 of filter chamber, backwash passage left end meets left filter chamber's backwash outlet connection 4-2, backwash passage right-hand member meets right filter chamber's backwash outlet connection 4-6, input channel meets input port joint 4-1, output channel meets delivery outlet joint 4-7, left side filter chamber's backwash outlet connection 4-2 is connected and preposition check valve 1 by pipeline with right filter chamber's backwash outlet connection 4-6, the spherical stop valve 2 of the input port preposition input of joint 4-1, the spherical stop valve 6 of the rearmounted output of delivery outlet joint 4-7.

Referring to Fig. 3, described left 4-13 of filter chamber and the right 4-9 of filter chamber are made of cylinder barrel 4-12, element kit 4-14 and gland 4-14, place element kit 4-14 among the cylinder barrel 4-12, and element kit 4-14 lower port is filled in gland 4-14.

Referring to Fig. 3, retainer ring 4-11 is equipped with in described left 4-13 of filter chamber and 4-9 lower end, right filter chamber.The effect of retainer ring 4-11 is to prevent on-stream because of carelessness that element kit 4-14 is looseningly, has guaranteed and can only just can unclamp element kit 4-14 under stress-free state.

Referring to Fig. 1-Fig. 3, Fig. 8-Figure 10, insert input pressure table 3 in the described input channel, insert delivery gauge 5 in the described output channel.Input pressure table 3 and delivery gauge 5 show that respectively the working media highly pressurised liquid filters front and back pressure.When high-pressure fluid was flowed through left 4-13 of filter chamber and the right 4-9 of filter chamber, the mechanical admixture in the liquid will be formed and stop up by filtration resistance, produces pressure reduction (input pressure table 3 is different with the value of reading of delivery gauge 5) at the left 4-13 of filter chamber with 4-9 two ends, right filter chamber immediately.Mechanical admixture among left side 4-13 of filter chamber and the right 4-9 of filter chamber is many more, and pressure differential is big more.

Referring to Fig. 6 and Fig. 8, Fig. 5 and Fig. 9, Fig. 7 and Figure 10, when left backwash switch knob 4-15 and right backwash switch knob 4-8 were in vertical position, left 4-13 of filter chamber and the right 4-9 of filter chamber were in the normal filtration state; When left backwash switch knob 4-15 manually turns left to be horizontal when being in vertical position with right backwash switch knob 4-8, the left 4-13 of filter chamber carries out backwash; Be horizontal when being in vertical position with left backwash switch knob 4-15 when right backwash switch knob 4-8 manually turns right, the right 4-9 of filter chamber carries out backwash.

It is to be noted, on the assembly casing, can two or more backwash modules 4 be housed parallel connection, the delivery outlet joint 4-7 of first backwash module 4 connects next backwash module 4 input port joint 4-1, by that analogy, the spherical stop valve 6 of the rearmounted output of the delivery outlet joint 4-7 of last backwash module 4.This backwash high pressure filtering station also belongs to the utility model protection domain.

Claims (4)

1, a kind of backwash high pressure filtering station, it is characterized in that: backwash module (4) is housed on the assembly casing, the valve body (4-3) of backwash module (4) has input channel, output channel, the backwash passage, filter chamber, left side inlet and right filter chamber inlet, valve seat (4-18) is placed in backwash passage and porch, left filter chamber, valve pad (4-16) and steel ball (4-17), steel ball (4-17) is supporting with left operating mechanism (4-4), left side operating mechanism (4-4) is gone up fixing left backwash switch knob (4-15), valve seat (4-18) is placed in backwash passage and porch, right filter chamber, valve pad (4-16) and steel ball (4-17), steel ball (4-17) is supporting with right operating mechanism (4-5), right operating mechanism (4-5) is gone up fixing right backwash switch knob (4-8), have L shaped passage in the steel ball (4-17), filter chamber, left side inlet connects left filter chamber (4-13), right filter chamber inlet connects the right (4-9 of filter chamber,) backwash passage left end connects left filter chamber's backwash outlet connection (4-2), backwash passage right-hand member connects right filter chamber's backwash outlet connection (4-6), input channel connects input port joint (4-1), output channel connects delivery outlet joint (4-7), left side filter chamber's backwash outlet connection (4-2) is connected and preposition check valve (1) by pipeline with right filter chamber's backwash outlet connection (4-6), the spherical stop valve (2) of the preposition input of input port joint (4-1), the rearmounted output of delivery outlet joint (4-7) spherical stop valve (6).

2, backwash high pressure filtering station according to claim 1, it is characterized in that: described left filter chamber (4-13) and right filter chamber (4-9) are made of cylinder barrel (4-12), element kit (4-14) and gland (4-14), place element kit (4-14) in the cylinder barrel (4-12), element kit (4-14) lower port is filled in gland (4-14).

3, backwash high pressure filtering station according to claim 2 is characterized in that: retainer ring (4-11) is equipped with in described left filter chamber (4-13) and lower end, right filter chamber (4-9).

4, backwash high pressure filtering station according to claim 1 is characterized in that: insert input pressure table (3) in the described input channel, insert delivery gauge (5) in the described output channel.

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