CN201026419Y

CN201026419Y - Compound filter

Info

Publication number: CN201026419Y
Application number: CNU2006201606912U
Authority: CN
Inventors: 李征
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-21
Filing date: 2006-11-21
Publication date: 2008-02-27
Anticipated expiration: 2016-11-21

Abstract

A composite filter is serially formed in the centrifugal and filtering way that traditional hydro cyclones and universal filters are reformed into two independent parts of an upper body and a lower body and connected with a deflector and a connecting pipe with variable diameters, wherein, the lower body is good for the production of centrifugal force with the rotation of the water body, which makes the insoluble substances with specific gravity larger than water sink; a filter element of the upper body aims at removing the smaller particles which are difficult to deposit in water; pressure gauges on a front end and a back end display the states of the filter element; the component of the filter element adopts stainless steel double casings to prolong the service life of filtering materials; the insoluble substances filtered by the upper body and the lower body are respectively collected and discharged, which improves the filtering effect; the composite filter is assembled in a way of being in serially connection with a water pump and a host machine and in parallel connection with a balanced water adding valve and terminal devices, which is beneficial for the stability of water systems and the cleaning of the host machine; the partial flow filtration is done by making use of the operation force of circulating water and the filtered insoluble substances are discharged by making use of the pressure of returned water of the system, which makes the composite filter replace traditional Y-shaped filters and makes online recoil operation repairs.

Description

Multiple filter

Technical field

The utility model relates to the filtration of all circulations of central air-conditioning, heating power heating, manufacturing industry cooling and needs purification, exactly, relates to the filter that for example is used for center air-condition circle water.

Background technology

Recirculated waters such as central air-conditioning cooling chilled water and heating system can produce fouling, corrosion and biological clay in actual motion.Above-mentioned substance forms insoluble matter and with the system water circulation, causes the water system heat-transfer effect to reduce in water system, the equipment heat exchange property descends; The obstruction of indoor and new blower fan group fan coil temperature control valve (TCV) and heating pipeline, maintenance capacity very big and complex operation and contaminated environment; Insoluble matter is with systemic circulation water flow at high speed, and accelerated wear test is washed away in generation to parts such as pipeline, valve, impellers, cause damaging in advance renewal, tube wall attenuation bearing capacity reduces cracky and leaks, and the valve seal variation fits badly or leaks, and the effective carrying capacity of water pump descends.Insoluble matter in the recirculated water also can make the systemic circulation resistance strengthen, and the pump motor power consumption increases.

For guaranteeing the cleaning of whole circulation water system, conventional way is:

1. in water system, add chemical agent and keep corresponding concentration at any time.

2. adopt y-type filter to be connected in the water system, but insoluble matter that can only the filtering larger volume, and SR is strengthened, the pump motor power consumption increases.Also need shut down during maintenance.

3. often emit part water body sewage, the new water dilution that covers respective amount again is to reduce insolubles content.Shortcoming is that water consumption is big, causes water resource waste and water rate to increase; The chemistry in water treatment medicament discharges thereupon, both severe contamination environment, increased the medicament expense spending again.

Summary of the invention

The purpose of this utility model provides a kind of multiple filter, the insoluble matter that it can not only the filtering large volume, and can filtering be difficult for the particle of deposition.

For this reason, the utility model provides a kind of multiple filter, and it is formed by relatively independent eddy flow water filter and combination of filters.The feature of this multiple filter is, the water inlet of multiple filter tangentially enters the eddy flow water filter, the delivery port of multiple filter is arranged on the filter, in the eddy flow water filter, be provided with inverted cone, be used for by making the water that flows into through water inlet rotate sedimentation to remove the contained solid content of water around cone, in filter, be provided with element kit, be used for filtering water contained be difficult for deposited particles, wherein the eddy flow water filter is connected with reducing communicating pipe by flow straightener with filter.

The hydrocyclone and the universal filter of routine are transformed, be divided into lower body two independent sectors in upper body on the structure, linked to each other with reducing communicating pipe, adopt method series connection centrifugal and that filter to use respectively and constituted multiple filter by flow straightener.Lower body helps the water body rotation and produces the centrifugal power of dragging on structural design, make proportion sink to concentrating greater than the insoluble matter of water.The upper body cross filter core be intended to remove be difficult in anhydrating deposition than granule, and designed the front and back end Pressure gauge and shown the filter core state.Element kit adopts the two sleeves of stainless steel, the repercussion effect and the service life of having improved filter material.Filter material is selected synthetic organic material for use, has that filtration resistance is little, contamination capacity is high, corrosion-resistant, characteristics such as the operating period is long.The insoluble matter that last lower body leaches is collected discharging respectively, has improved filter effect greatly.Equipment employing on mounting means is connected with water pump and main frame, is converted water valve and terminal heat transmission equipment novel manner in parallel with balance, has improved the stability of water system operation.Utilize recirculated water operation power to carry out shunt filtering, utilize system's pressure of return water that the insoluble matter that leaches is discharged, thereby replaced traditional y-type filter that is connected in the circulation, saved electric energy greatly.Multiple filter can online backflushing operation maintenance under the situation that does not influence the circulation operate as normal.

Description of drawings

Fig. 1: multiple filter be cleaned system's connection layout (is example with the central air-conditioning chilled water)

Fig. 2: multiple filter internal structure schematic diagram

Fig. 3: total feed pipe and multiple filter water inlet connection layout

Fig. 4: stainless steel bitubular filter cartridge construction figure

Fig. 5: flow straightener schematic diagram

The specific embodiment

1. multiple filter and

water circulating pump

22,23 and main frame 20 are in series, and convert water valve 19 and in parallel with terminal heat transmission equipment 18 by water knockout drum 16 and water collector 17 with system balancing.The job stability of circulation is in service most important for being intended to energy saving optimizing, and this connection has guaranteed that the flow of main frame does not change, and the current after the filtering simultaneously are through main condenser, evaporimeter or boiler heat-exchanger rig, and cleaning action is remarkable.

The concrete operations of installing are:

(1). multiple filter is placed in any position that machine room does not influence maintenance operation.

(2). in the sampling of the lowest part at the horizontal position of total feed pipe, circulation main frame 20 water sides and be connected to filter water inlet 1.Delivery port 2 after the filtration is connected to any part on

water pump

22,23 return mains.

(3). go up blow-off pipe 3 and down blow pipe 4 and cause the ground leak with pipeline respectively or after converging, but must leave the space that dirt is discharged in cleaning.

(4). multiple filter is equipped with element kit 8, is made up of dividing plate, the two covers of stainless steel and filter material.The preceding Pressure gauge 5 of filter core and back Pressure gauge 6 can be measured the force value of filter core front and back side at any time, and the differences of two table numerical value are with as judging whether filter core needs the reference that recoils, and owing to the circulating pressure difference of every cover system design, initial pressure reduction is also different.

(5). after installing multiple filter, original y-type filter 21 blowdown end caps that are connected in the system are opened, behind the taking-up filter core end cap former state is sealed.

(6). the multiple filter that is used for chilled water, heating water and health hot water must add insulation, and heat-insulation layer should leave the seam of operating when being convenient to clear up filter core.Be used for needn't being incubated of cooling water filtration.

(7). according to conventional design, the various water system operating pressures of central air-conditioning generally can not surpass 0.8MPa and (be about 8kgf/cm ²), multiple filter design pressure-bearing is 1.6MPa, can satisfy the circulation safe handling of any building.

2. multiple filter operation principle:

The recirculated water of main frame 17 of flowing through is diverted to multiple filter in the effect lower part of self pressure, tangentially enters lower body, makes circular motion around guiding cone 12 and forms eddy flow.Under the power of comprehensively the dragging effect of gravity, centrifugal force and inertia force, proportion is entad done along cone 12 greater than the insoluble matter of water moved downward, converge to the lower body bottom.

According to fluid flow law Q=VS (in the formula: Q-fluid flow, the V-rate of flow of fluid, the S-fluid cross-section is long-pending).As can be known: when flow was identical, flow velocity and cross section were inverse ratio.Volume in the design between cylindrical wall and the inverted cone 12 increases gradually with water (flow) direction, makes water flow velocity slow down gradually, helps the sedimentation of insoluble matter.Flow straightener 7 and reducing communicating pipe 9 the flowing to epicoeloma in of connecting two filters between of the water that coarse filtration is crossed by being located at filter downside position.Reducing communicating pipes 9, diameter was greater than the total Inlet and outlet water caliber of filter, discharges current the insoluble matter in the eddy flow is produced side direction suction and hindered falling to reduce.

The fine particle thing of sedimentation to the upper body, is stopped from water body filtering by filter core with water running rapidly, and major part falls and accumulates on the upper body inclined clapboard 10, and more tiny insoluble matter increases the running resistance of water attached to the land side of element kit 8.Element kit 8 adopts synthetic organic materials, adopts the two sleeve design of stainless steel, have that filtration resistance is little, contamination capacity is high, corrosion-resistant, the operating period long and change characteristics such as easy.Inclined clapboard 10 tops in upper body have the hole 11 of collaborating, in order to the following intracoelomic cavity exhaust after opening jar at every turn.

3. blowdown operation method:

Multiple filter when pressure reduction increases to certain value, just should carry out blowdown operation after operation a period of time.Method is: with the valve closing of water inlet 1, the sewage draining valve of upper and lower body is opened.Discharge through sewage draining valve and blowoff line because the straight-through external world of blowoff line is a normal pressure, and the water in the multiple filter oppositely flows backwards under the pressure of return water system this moment.Formerly on the element kit 8 of upper body all recoiled, discharged together with sewer by the fine particles of filtering, the insoluble matter and the lower body deposit that accumulate on the inclined clapboard 10.Multiple filter is newly packed into starting stage of system, because the insoluble matter density in the system water is bigger, blowdown is shorter at interval.Along with the raising of system water cleannes, the blowdown number of times will reduce greatly, and the recoil water yield also can reduce significantly.

4. renew cartridge more:

Element kit 8 is made up of the two sleeves of stainless steel, stainless steel fine mesh wire and non-woven fibre, when pressure reduction is still very big after finding the recoil blowdown, and the filter material that should in time more renew.Method is: with water inlet 1 valve and delivery port 2 valve closings, open the upper body sewage draining valve and get rid of water in the upper body.The fastening bolt of pulling down upper end cover and delivery port 2 flanges and upper body respectively takes off end cap.Filter core promptly disintegrates after proposing element kit 8 and taking off assembling bolt.Pull out inner core and change filter material.Assembly program is opposite, must note the situation of seal gasket, finds aging should the replacing in the lump.

5. equipment characteristic

Efficient convenient.Centrifugal, filter the design that separates fully, improved the filter efficiency of filter core, delay the time interval of recoiling.Utilize pressure reduction to show the filter core state, significantly reduced blindly recoil operation and opened a jar inspection filter core, guaranteed filter effect.

Good stability.Connect with main frame, improved cleaning action, do not change each water system flow of main frame simultaneously, have good stable the main frame heat-exchanger rig.

Economize on electricity.After multiple filter is removed insoluble matter, make the water quality change circulate smooth and easy running resistance clearly and reduce.After y-type filter takes out filter core in addition, resistance is reduced, the pump motor current sinking will significantly reduce, and avoid waste of energy.

Improve heat exchange efficiency.Heat transfer coefficient improves behind the water cleaning, and the corresponding raising of equipment heat exchange efficiency has increased the effective output of unit, has reduced waste of energy.

Water saving.After installing multiple filter additional, the discharging of insoluble matter centralized collection only consumes a small amount of backwashing water at every turn, has saved a large amount of sewers.

Alleviate maintenance capacity greatly.Systemic circulation water after the filtering can reduce the plugging fault of terminal heat transmission equipment to greatest extent, has alleviated maintenance load greatly.

Reduction is to the pollution of environment.Significantly reduce the recirculated water blowdown flow rate that is rich in the Water Treatment medicament after installing multiple filter additional, also just pollution has been controlled at bottom line.

Saving water treatment agent takes.Blowdown flow rate reduces, and the medicament amount lost significantly reduces, and has saved a large amount of new water treatment agent expenses.

Prolong service life of equipment.Keep water cleaning can prolong the service life of parts greatly.

Claims

1. multiple filter, it is formed by relatively independent eddy flow water filter and combination of filters, it is characterized in that: the water inlet of this multiple filter (1) tangentially enters this eddy flow water filter, the delivery port of this multiple filter (2) is arranged on this filter, in this eddy flow water filter, be provided with inverted cone (12), rotate also sedimentation thus through the water that this water inlet (1) flows into around this cone (12) and remove contained solid content in the water, be provided with in this filter and be used for the contained element kit that is difficult for deposited particles (8) of filtering water, wherein said eddy flow water filter and described filter are by interconnecting flow straightener (7) and reducing communicating pipe (9).

2. multiple filter according to claim 1 is characterized in that: this element kit (8) is made up of the two sleeves of stainless steel, stainless steel fine mesh wire and non-woven fibre.

3. multiple filter according to claim 1 and 2 is characterized in that: in the both sides, front and back of this element kit (8) Pressure gauge (5,6) is housed, is used for showing by pressure reduction the filtration state of this element kit (8).

4. multiple filter according to claim 1 and 2 is characterized in that: the diameter of this reducing communicating pipe (9) is greater than the diameter of the water inlet pipe and water outlet pipe of this multiple filter.

5. multiple filter according to claim 1 and 2 is characterized in that: in this filter, be provided with inclined clapboard (10) in the below of this element kit (8), be used to accumulate the deposited particles that is difficult for of this element kit institute filtering.

6. multiple filter according to claim 5 is characterized in that: the top of this inclined clapboard (10) has the hole of collaborating (11).

7. multiple filter according to claim 1 and 2, it is characterized in that: this multiple filter is installed in the circulation of a central air-conditioning in such a way, the water circulating pump (22 of this multiple filter and this central air-conditioning, 23) and main frame (20) series connection, and in parallel with the terminal heat transmission equipment (18) of this central air-conditioning.