CN204275649U - A kind of backwash fore filter - Google Patents
A kind of backwash fore filter Download PDFInfo
- Publication number
- CN204275649U CN204275649U CN201420630652.9U CN201420630652U CN204275649U CN 204275649 U CN204275649 U CN 204275649U CN 201420630652 U CN201420630652 U CN 201420630652U CN 204275649 U CN204275649 U CN 204275649U
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- China
- Prior art keywords
- backwash
- backwash valve
- valve
- filtration barrel
- barrel body
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Abstract
A kind of backwash fore filter of the present utility model, comprise backwash valve, described backwash valve is provided with water inlet port and the water outlet port of horizontal direction opening, this backwash valve upper end offers backwash valve body port, and this backwash valve body port is provided with backwash spool, backwash valve sealing ring, backwash valve body top cover and backwash knob from the bottom to top successively; This backwash valve lower end is connected with filtration barrel body, is provided with filter core in described filtration barrel body; Described filtration barrel body lower end is connected with blowdown valve body.A kind of backwash fore filter of the present utility model adds a backwash valve on the fore filter of routine, solves impurity and is attached to the problem that filter screen cannot be rinsed well, reduces the demounting procedure of fore filter, user-friendly.
Description
Technical field
The utility model relates to a kind of backwash fore filter.
Background technology
Fore filter is generally arranged on the front end of pipeline, thus with " preposition " two word name; And " filtration ", then refer to the general principle of this kind equipment.Be generally T-shape structure.The two ends, left and right, position of " one is horizontal " are above respectively intake-outlet." one erects " position is below fuselage and inner cylindrical filter sieve, is then sewage draining exit bottom, controls to open and close by a valve.After fore filter is arranged on inlet channel water meter usually, to guarantee that a large amount of precipitated impurities produced in pipe network can not damage human body, and positive protective effect is played to concealed pipe, tap, electrical equipment etc.Fore filter is the jinx of secondary pollution, is a kind of device for filtering impurities reliably.Domestic type fore filter is the first coarse filtration equipment to full room water, can silt in Filtered tap water, iron rust, large particulate matter.
The accuracy rating of fore filter filter screen is not according to different brands and model from 5-300 micron etc., the granule foreign that the precipitated impurities that main removal pipeline produces and bacterium, microorganism remains, iron rust, husky mud etc. are greater than more than 5 microns, avoids human body and skin to come to harm; And play positive protective effect to downstream line, water purifier, water heater, washing machine, high-grade tap, flower Samburu, fore filter can also add " hydrochloric acid rephosphorization " scale inhibition filter core plays scale inhibition effect to solar energy, boiler.
But conventional fore filter does not have backwashing function, and the impurity be attached to after filtration on filter screen removes after needing the teardown of engine, is not easy to the use of user.
Utility model content
For overcoming the above problems, the utility model provides one and can change the direction of a stream of water, and utilizes the backwash fore filter that hydraulic pressure is rinsed well impurity on filter screen.
A kind of backwash fore filter that the utility model provides, comprise backwash valve, described backwash valve is provided with water inlet port and the water outlet port of horizontal direction opening, this backwash valve upper end offers backwash valve body port, and this backwash valve body port is provided with backwash spool, backwash valve sealing ring, backwash valve body top cover and backwash knob from the bottom to top successively; This backwash valve lower end is connected with filtration barrel body, is provided with filter core in described filtration barrel body; Described filtration barrel body lower end is connected with blowdown valve body.
The backwash fore filter of the technical program is provided with backwash valve, when fore filter filters water, impurity can be attached on filter screen, be difficult to rinse well, need to take machine apart, take out filter screen and rinse, be not easy to regular job, and this backwash valve has the effect of change water (flow) direction, by changing the direction of a stream of water, hydraulic pressure is utilized to be rinsed out by the impurity be attached on filter screen.
Further, filter core scraper is set with outside described filter core.
The filter core scraper of the technical program has the effect protected and support filter core, and has the effect of scraping decontamination when filter cartridge flushing.
Further, be provided with between described filtration barrel body and blowdown valve body and scrape knob.
The knob that scrapes of the technical program has the effect controlling the motion of filter core scraper.
Further, described backwash valve and filtration barrel body are for being threaded.
The backwash valve of the technical program makes the connection of backwash valve and filtration barrel body more tight with being threaded of filtration barrel body.
Further, between described backwash valve and filtration barrel body, filtration barrel body sealing ring is installed.
The connection of filtration barrel body sealing ring to backwash valve and filtration barrel body of the technical program has sealing function.
Using method of the present utility model is: rotary back flushing knob, when making backwash spool be positioned at Fig. 3 position, this backwash fore filter can normal filtration water, when backwash spool is positioned at Fig. 4 position, open blowdown valve body, filter can carry out sewage backwash work simultaneously.
A kind of backwash fore filter that the utility model provides adds a backwash valve on the fore filter of routine, solves impurity and is attached to the problem that filter screen cannot be rinsed well, reduces the demounting procedure of fore filter, user-friendly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that each parts of the present utility model split schematic diagram;
Schematic diagram when Fig. 3 is the utility model filtered water;
Schematic diagram when Fig. 4 is the utility model sewage backwash.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As illustrated in fig. 1 and 2, the present embodiment provides a kind of backwash fore filter, comprise backwash valve 1, described backwash valve 1 is provided with water inlet port 2 and the water outlet port 3 of horizontal direction opening, this backwash valve 1 upper end offers backwash valve body port 4, and this backwash valve body port 4 place is provided with backwash spool 5, backwash valve sealing ring 6, backwash valve body top cover 7 and backwash knob 8 from the bottom to top successively; This backwash valve 1 lower end has been threaded filtration barrel body 9, and is provided with filtration barrel body sealing ring 10 between described backwash valve 1 and filtration barrel body 9, is provided with filter core 11, is set with filter core scraper 12 outside described filter core 11 in described filtration barrel body 9; Described filtration barrel body 9 lower end is connected with blowdown valve body 13, is provided with and scrapes knob 14 between described filtration barrel body 9 and blowdown valve body 13.
The using method of the present embodiment is: rotary back flushing knob 8, when making backwash spool 5 be positioned at Fig. 3 position, this backwash fore filter can normal filtration water, when backwash spool 5 is positioned at Fig. 4 position, open blowdown valve body 13, this backwash fore filter can carry out sewage backwash work simultaneously.
A kind of backwash fore filter that the present embodiment provides adds a backwash valve on the fore filter of routine, solves impurity and is attached to the problem that filter screen cannot be rinsed well, reduces the demounting procedure of fore filter, user-friendly.
Claims (5)
1. a backwash fore filter, it is characterized in that: comprise backwash valve, described backwash valve is provided with water inlet port and the water outlet port of horizontal direction opening, this backwash valve upper end offers backwash valve body port, and this backwash valve body port is provided with backwash spool, backwash valve sealing ring, backwash valve body top cover and backwash knob from the bottom to top successively; This backwash valve lower end is connected with filtration barrel body, is provided with filter core in described filtration barrel body; Described filtration barrel body lower end is connected with blowdown valve body.
2. a kind of backwash fore filter according to claim 1, is characterized in that: be set with filter core scraper outside described filter core.
3. a kind of backwash fore filter according to claim 1, is characterized in that: be provided with between described filtration barrel body and blowdown valve body and scrape knob.
4. a kind of backwash fore filter according to claim 1, is characterized in that: described backwash valve and filtration barrel body are for being threaded.
5. a kind of backwash fore filter according to claim 1, is characterized in that: be provided with filtration barrel body sealing ring between described backwash valve and filtration barrel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630652.9U CN204275649U (en) | 2014-10-28 | 2014-10-28 | A kind of backwash fore filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630652.9U CN204275649U (en) | 2014-10-28 | 2014-10-28 | A kind of backwash fore filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204275649U true CN204275649U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420630652.9U Active CN204275649U (en) | 2014-10-28 | 2014-10-28 | A kind of backwash fore filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN204275649U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797472A (en) * | 2016-05-05 | 2016-07-27 | 浙江沁园水处理科技有限公司 | Filter element washing device |
| CN106422461A (en) * | 2016-12-07 | 2017-02-22 | 南京菲时特实业有限公司 | Reverse washing prefilter |
| CN109058516A (en) * | 2018-10-25 | 2018-12-21 | 新乡市嘉时机械设备有限公司 | A kind of back-flushing filtering device |
| CN114130087A (en) * | 2021-12-15 | 2022-03-04 | 山西潞安集团余吾煤业有限责任公司 | Back-flushing type pre-filter |
-
2014
- 2014-10-28 CN CN201420630652.9U patent/CN204275649U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797472A (en) * | 2016-05-05 | 2016-07-27 | 浙江沁园水处理科技有限公司 | Filter element washing device |
| CN106422461A (en) * | 2016-12-07 | 2017-02-22 | 南京菲时特实业有限公司 | Reverse washing prefilter |
| CN106422461B (en) * | 2016-12-07 | 2018-06-15 | 南京菲时特实业有限公司 | A kind of reverse direction rinses fore filter |
| CN109058516A (en) * | 2018-10-25 | 2018-12-21 | 新乡市嘉时机械设备有限公司 | A kind of back-flushing filtering device |
| CN114130087A (en) * | 2021-12-15 | 2022-03-04 | 山西潞安集团余吾煤业有限责任公司 | Back-flushing type pre-filter |
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