CN204900942U - Flange joint backflow preventer structure - Google Patents
Flange joint backflow preventer structure Download PDFInfo
- Publication number
- CN204900942U CN204900942U CN201520407917.3U CN201520407917U CN204900942U CN 204900942 U CN204900942 U CN 204900942U CN 201520407917 U CN201520407917 U CN 201520407917U CN 204900942 U CN204900942 U CN 204900942U
- Authority
- CN
- China
- Prior art keywords
- backflow preventer
- check valve
- drain valve
- flange joint
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a flange joint backflow preventer structure, the backflow preventer structure includes the wash -out valve of following vertical direction setting and is located the intake check valve and the play water check valve of wash -out valve both sides, check valve and the play water check valve tip of intaking is equipped with the flange joint structure, and the check valve of intaking communicates the setting with the wash -out valve respectively with play water check valve, and the installation direction of just intake check valve and play water check valve and wash -out valve is on same horizontal line. The utility model discloses well flange joint backflow preventer structure can pass through flange and outside fixed connection, and its mounting structure is simple, fixed effectual, and the dismantlement is convenient, be convenient for maintenance and maintenance.
Description
Technical field
The utility model relates to water-treatment technology field, particularly relates to a kind of Flange joint backflow preventer structure.
Background technique
Backflow preventer (backflowpreventer) is the device that a kind of prevented feedwater piping current adopting retaining element to form flow backwards.
Backflow preventer is according to tap water supply equipment, especially the backflow of Drinking Water pipeline is seriously polluted, again without when effectively preventing backflow pollution device, in a kind of considered critical pipeline of development, water can only the waterpower control combination device of one-way flow, its function is under any operating mode, prevent ducted medium from flowing backwards, and avoids to reach the object polluted that flows backwards.Current backflow preventer is mainly divided into low resistance force counter flow stop and pressure reduction type backflow preventer two class, is less than 3 meters by the loss of head of NBS low resistance force counter flow stop, and the loss of head of pressure reduction type backflow preventer is less than 7 meters.
But different for its mounting structure of backflow preventer be threaded with Flange joint, for this problem, the utility model provides a kind of Flange joint backflow preventer structure.
Model utility content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide a kind of Flange joint backflow preventer structure exactly.
The utility model solves the technological scheme that its technical problem adopts:
A kind of Flange joint backflow preventer structure, described backflow preventer structure comprises the drain valve vertically arranged and the water inlet safety check being positioned at drain valve both sides and goes out Water Check Valve, described water inlet safety check and go out Water Check Valve end and be provided with flanged connecting structure, water inlet safety check and go out Water Check Valve and is communicated with drain valve respectively and arranges, and intake safety check with go out the installation direction of Water Check Valve and drain valve and drain valve axis angle is acute angle.
As further improvement of the utility model, described water inlet safety check and to go out Water Check Valve be all 45 ° with the installation direction of drain valve and the angle of drain valve axis.
As further improvement of the utility model, below described drain valve, be provided with the bucket that leaks.
As further improvement of the utility model, between described water inlet safety check and drain valve, be connected with high pressure hose.
The beneficial effects of the utility model are, in the utility model, Flange joint backflow preventer structure can be connected with external stability by flange, and its mounting structure is simple, good fixing effect, and convenient disassembly, be convenient to maintenance process simulation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of Flange joint backflow preventer in the utility model one specific embodiment.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Shown in ginseng Fig. 1, the utility model discloses a kind of Flange joint backflow preventer structure, described backflow preventer structure comprises the drain valve 2 vertically arranged and the water inlet safety check 1 being positioned at drain valve both sides and goes out Water Check Valve 3, described water inlet safety check 1 and go out Water Check Valve 3 end and be provided with flanged connecting structure, water inlet safety check 1 and go out Water Check Valve 3 and is communicated with drain valve respectively and arranges, and intake safety check 1 with go out the installation direction of Water Check Valve 3 and drain valve 2 axis angle is acute angle.Preferably, to intake described in present embodiment safety check and to go out Water Check Valve be all 45 ° with the installation direction of drain valve and the angle of drain valve axis.
Further, below described drain valve 2, be provided with the bucket 4 that leaks, between described water inlet safety check 1 and drain valve 2, be connected with high pressure hose 5.
In the utility model, Flange joint backflow preventer structure can be connected with external stability by flange, and its mounting structure is simple, good fixing effect, and convenient disassembly, be convenient to maintenance process simulation.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a Flange joint backflow preventer structure, it is characterized in that, described backflow preventer structure comprises the drain valve vertically arranged and the water inlet safety check being positioned at drain valve both sides and goes out Water Check Valve, described water inlet safety check and go out Water Check Valve end and be provided with flanged connecting structure, water inlet safety check and go out Water Check Valve and is communicated with drain valve respectively and arranges, and intake safety check with go out the installation direction of Water Check Valve and drain valve and drain valve axis angle is acute angle.
2. Flange joint backflow preventer structure according to claim 1, is characterized in that, described water inlet safety check and to go out Water Check Valve be all 45 ° with the installation direction of drain valve and the angle of drain valve axis.
3. Flange joint backflow preventer structure according to claim 1, is characterized in that, is provided with the bucket that leaks below described drain valve.
4. Flange joint backflow preventer structure according to claim 1, is characterized in that, is connected with high pressure hose between described water inlet safety check and drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407917.3U CN204900942U (en) | 2015-06-15 | 2015-06-15 | Flange joint backflow preventer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407917.3U CN204900942U (en) | 2015-06-15 | 2015-06-15 | Flange joint backflow preventer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900942U true CN204900942U (en) | 2015-12-23 |
Family
ID=54923118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407917.3U Expired - Fee Related CN204900942U (en) | 2015-06-15 | 2015-06-15 | Flange joint backflow preventer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900942U (en) |
-
2015
- 2015-06-15 CN CN201520407917.3U patent/CN204900942U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160615 |