CN204543681U - A kind of sand filter back purge system - Google Patents
A kind of sand filter back purge system Download PDFInfo
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- CN204543681U CN204543681U CN201520095048.5U CN201520095048U CN204543681U CN 204543681 U CN204543681 U CN 204543681U CN 201520095048 U CN201520095048 U CN 201520095048U CN 204543681 U CN204543681 U CN 204543681U
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- sand filter
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Abstract
The utility model discloses a kind of sand filter back purge system, comprise shallow-sand filter, the backwashing water pipeline of shallow-sand filter is connected with backwashing water house steward butterfly valve, backwashing water house steward butterfly valve is connected by connecting pipe with recirculated water water supply line, hydraulic control valve water source tube main valve is connected with connecting pipe, hydraulic control valve water source tube main valve also with the first waterpower triple valve, second waterpower triple valve connects, first waterpower triple valve also with backwashing wastewater discharge tube, shallow-sand filter inlet channel is connected with the water inlet of shallow-sand filter, second waterpower triple valve is connected with second control device by the second magnetic valve, second waterpower triple valve also with shallow-sand filter water production pipeline, backwashing water pipeline is connected with the delivery port of shallow-sand filter.Backwash water source changes into from a waterpipe and accessing from recirculated water water supply line by the utility model, supplies water recirculated water as the backwash water source of sand filter, has saved the consumption of a water.
Description
Technical field
The utility model belongs to industrial circulating cooling water technical field, particularly relates to a kind of sand filter back purge system.
Background technology
Industrial circulating cooling water turbidity in running can raise gradually, for guaranteeing that circulating water quality turbidity conforms with the regulations requirement, need filter circulating backwater.Because industrial circulating water internal circulating load is large, all can not filters it, therefore other filter can only be set on return water system continuous filtration is carried out to component loops water.
At present, the backwash water source that the shallow-sand filter that circulation adopts adopts in backwash process is an external water source.When occurring that filtration pressure difference increases in running, carry out backwash with a water, consume a large amount of water yield.
Summary of the invention
The technical problems to be solved in the utility model is current, and the backwash water source that the shallow-sand filter that circulation adopts adopts in backwash process is an external water source.When occurring that filtration pressure difference increases in running, carry out backwash with a water, consume a large amount of water yield, for solving the problem, the utility model provides a kind of sand filter back purge system.
The purpose of this utility model realizes in the following manner:
A kind of sand filter back purge system, comprise shallow-sand filter, the backwashing water pipeline of described shallow-sand filter is connected with backwashing water house steward butterfly valve, backwashing water house steward butterfly valve is connected by connecting pipe with recirculated water water supply line, hydraulic control valve water source tube main valve is connected with connecting pipe, hydraulic control valve water source tube main valve also with the first waterpower triple valve, second waterpower triple valve connects, first waterpower triple valve is connected with first control device by the first magnetic valve, first waterpower triple valve also with backwashing wastewater discharge tube, shallow-sand filter inlet channel is connected with the water inlet of shallow-sand filter, second waterpower triple valve is connected with second control device by the second magnetic valve, second waterpower triple valve also with shallow-sand filter water production pipeline, backwashing water pipeline is connected with the delivery port of shallow-sand filter.
Described first waterpower triple valve and the second waterpower triple valve are provided with air bleeding valve.
Relative to prior art, backwash water source changes into from a waterpipe and accessing from recirculated water water supply line by the utility model, supplies water recirculated water as the backwash water source of sand filter, has saved the consumption of a water.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is shallow-sand filter; 2 is backwashing water pipelines; 3 is backwashing water house steward butterfly valves; 4 is recirculated water water supply lines; 5 is connecting pipes; 6 is hydraulic control valve water source tube main valves; 7 is first waterpower triple valves; 8 is second waterpower triple valves; 9 is first magnetic valves; 10 is second magnetic valves; 11 is shallow-sand filter inlet channels; 12 is shallow-sand filter water production pipeline; 13 is backwashing wastewater discharge tubes; 14 is first control devices; 15 is second control devices.
Detailed description of the invention
As shown in Figure 1, a kind of sand filter back purge system, comprise shallow-sand filter 1, the backwashing water pipeline 2 of described shallow-sand filter 1 is connected with backwashing water house steward butterfly valve 3, backwashing water house steward butterfly valve 3 is connected by connecting pipe 5 with recirculated water water supply line 4, hydraulic control valve water source tube main valve 6 is connected with connecting pipe 5, hydraulic control valve water source tube main valve 6 also with the first waterpower triple valve 7, second waterpower triple valve 8 connects, first waterpower triple valve 7 is connected with first control device 14 by the first magnetic valve 9, first waterpower triple valve 7 also with backwashing wastewater discharge tube 13, shallow-sand filter inlet channel (11) is connected with the water inlet of shallow-sand filter 1, second waterpower triple valve 8 is connected with second control device 15 by the second magnetic valve 10, second waterpower triple valve 8 also with shallow-sand filter water production pipeline 12, backwashing water pipeline 2 is connected with the delivery port of shallow-sand filter 1.
First waterpower triple valve 7 and the second waterpower triple valve 8 are provided with air bleeding valve.
Shallow-sand filter 1 is in running, and filter and mainly rely on waterpower triple valve 7 to switch with backwash process, backwashing water pipeline 2 is connected on recirculated water water supply line 4, and pressure is between 0.3Mpa ~ 0.45Mpa.The waterpower triple valve 7 of shallow-sand filter 1 controls by hydro powered, drives hydraulic demand at more than 0.25Mpa, can not normally open lower than 0.25MPa waterpower triple valve; And for preventing backwashing water hypertonia in backwash process, filterins media run-off when causing backwash, requires that the pressure of backwashing water is at below 0.1Mpa.For solving shallow-sand filter 1 in backwash process because waterpower triple valve 7 drives source pressure too low, during backwash, valve open is not thorough, or backwashing water hypertonia, back washing strength is large, cause the problem of filterins media run-off, the hydraulic control valve water source tube main valve 6 of waterpower triple valve 7 is connected to the rear end of backwashing water house steward butterfly valve 3.During operation, regulate the aperture of backwashing water house steward butterfly valve 3, upstream pressure is made to remain on below 0.1Mpa, downstream pressure remains on more than 0.25Mpa, not only ensure that shallow-sand filter when backwash not because backwash water pressure causes greatly backwash intensity high, there is filterins media run-off phenomenon, and also ensure that hydro powered triple valve driving pressure is in normal range (NR).
The course of work of the present utility model is as follows: when carrying out normal filtration, circulating backwater flows through the first waterpower triple valve 7 and enters shallow-sand filter 1 and filter in shallow-sand filter inlet channel 11, flows out to circulation water tower sink through the recirculated water filtered through the second waterpower triple valve 8 from shallow-sand filter water production pipeline 12.
When needs carry out backwash, second control device 15 sends signal to the second magnetic valve 10 on the second waterpower triple valve 8, closes shallow-sand filter water production pipeline 12, opens Backwash pipeline 2; First control device 14 sends signal to the first magnetic valve 9 on the first waterpower triple valve 7, close shallow-sand filter inlet channel 11, open backwashing wastewater discharge tube 13, the downstream pressure of backwashing water house steward butterfly valve 3 is more than 0.25Mpa, can keep opening of the first waterpower triple valve 7 and the second waterpower triple valve 8; Backwash water flows through connecting pipe 5 in recirculated water water supply line 4, by backwashing water house steward butterfly valve 3 and the second waterpower triple valve 8, enter from the bottom of shallow-sand filter 1, carry out backwash to shallow-sand filter 1, the waste water after backwash is through backwashing wastewater discharge tube 13 discharge line.After backwash terminates, first control device 14 sends signal to the first magnetic valve 9 on the first waterpower triple valve 7, and backwashing wastewater discharge tube 13 closed by the first waterpower triple valve 7, opens shallow-sand filter inlet channel 11; Second control device 15 sends signal to the second magnetic valve 10 on the second waterpower triple valve 8, and backwashing water pipeline 2 closed by the second waterpower triple valve 8, opens shallow-sand filter water production pipeline 12, and shallow-sand filter 1 carries out normal filtration.
In production process, can carry out the time interval and the time span that arrange backwash according to time differential pressure, if arrange shallow-sand filter 1 to run backwash in 24 hours once, backwash once lasts about 90 ~ 150s, and average backwash draining per hour is about 4.8m
3, within 1 year, approximately need consume a water 4.8m
3× 24 × 308=35481.6m
3, after substituting a water with recirculated water, a water consumption can be reduced every year and be about 35481.6m
3.
Relative to prior art, backwash water source changes into from a waterpipe and accessing from recirculated water water supply line by the utility model, supplies water recirculated water as the backwash water source of sand filter, has saved the consumption of a water.
Above-described is only preferred embodiment of the present utility model; it should be pointed out that for a person skilled in the art, do not departing under the utility model general idea prerequisite; can also make some changes and improvements, these also should be considered as protection domain of the present utility model.
Claims (2)
1. a sand filter back purge system, comprise shallow-sand filter (1), it is characterized in that: the backwashing water pipeline (2) of described shallow-sand filter (1) is connected with backwashing water house steward butterfly valve (3), backwashing water house steward butterfly valve (3) is connected by connecting pipe (5) with recirculated water water supply line (4), hydraulic control valve water source tube main valve (6) is connected with connecting pipe (5), hydraulic control valve water source tube main valve (6) is also connected with the first waterpower triple valve (7) and the second waterpower triple valve (8), first waterpower triple valve (7) is connected with first control device (14) by the first magnetic valve (9), first waterpower triple valve (7) also with backwashing wastewater discharge tube (13), shallow-sand filter inlet channel (11) is connected with the water inlet of shallow-sand filter (1), second waterpower triple valve (8) is connected with second control device (15) by the second magnetic valve (10), second waterpower triple valve (8) also with shallow-sand filter water production pipeline (12), backwashing water pipeline (2) is connected with the delivery port of shallow-sand filter (1).
2. a kind of sand filter back purge system according to claim 1, is characterized in that: described waterpower triple valve (7) is provided with air bleeding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095048.5U CN204543681U (en) | 2015-02-11 | 2015-02-11 | A kind of sand filter back purge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095048.5U CN204543681U (en) | 2015-02-11 | 2015-02-11 | A kind of sand filter back purge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204543681U true CN204543681U (en) | 2015-08-12 |
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ID=53818852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520095048.5U Expired - Fee Related CN204543681U (en) | 2015-02-11 | 2015-02-11 | A kind of sand filter back purge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204543681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975383A (en) * | 2019-12-25 | 2020-04-10 | 江苏达格水务有限公司 | Endogenous backwashing system and process of laminated filter |
| CN113663596A (en) * | 2021-09-02 | 2021-11-19 | 灵宝宝鑫电子科技有限公司 | Static pool additive dynamic adding system |
-
2015
- 2015-02-11 CN CN201520095048.5U patent/CN204543681U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975383A (en) * | 2019-12-25 | 2020-04-10 | 江苏达格水务有限公司 | Endogenous backwashing system and process of laminated filter |
| CN113663596A (en) * | 2021-09-02 | 2021-11-19 | 灵宝宝鑫电子科技有限公司 | Static pool additive dynamic adding system |
| CN113663596B (en) * | 2021-09-02 | 2022-10-28 | 灵宝宝鑫电子科技有限公司 | Static pool additive dynamic adding system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |