CN2460572Y - Device for preventing freezing for water system - Google Patents
Device for preventing freezing for water system Download PDFInfo
- Publication number
- CN2460572Y CN2460572Y CN 00256576 CN00256576U CN2460572Y CN 2460572 Y CN2460572 Y CN 2460572Y CN 00256576 CN00256576 CN 00256576 CN 00256576 U CN00256576 U CN 00256576U CN 2460572 Y CN2460572 Y CN 2460572Y
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- CN
- China
- Prior art keywords
- water
- piston
- main valve
- valve
- drain 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
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Abstract
The utility model relates to a device for preventing a water system from freezing, which comprises a switch hand wheel of a main valve, the main valve, a water inlet end, a drain valve, a drain pipe and a water outlet end, wherein the main valve is positioned between the water inlet end and the water outlet end. The drain pipe is connected with the water outlet end of the main valve. The tail end is provided with the drain valve which is vertically positioned. When the main valve is closed or opened, the drain valve automatically discharges water or closes according to water pressure in the water outlet end, which avoids the trouble and the delay caused by manual operation. The utility model can satisfy requirements of supplying water, cutting off water and preventing freezing in airports, petroleum industry, chemical industry, various factories, etc. in the north in winter. The utility model can win valuable time in the emergent state of water supply for fire protection.
Description
The utility model relates to a kind of water system defroster, and special feature is that it has a drain valve that can open and close automatically.
At cold district and extremely frigid zones,, must be embedded in below the frozen soil layer at the pressure water supply pipeline of provided underground because winter, the face of land freezed.But because of delivery port often more than ground surface, so during cutting off the water, must take antifreezing measures.At present general water system defroster and method thereof is, when cutting off the water, close main valve after, the operator will descend to the down-hole, opens drain valve, discharges the terminal water behind the main valve.Before opening main valve during by the time supply water, the operator will close drain valve once more down to the down-hole again.This manual apparatus and method for the confession of industries such as airport, petroleum industry, chemical industry, various factories, cut off the water, especially concerning fire fighting supply, seem very numerous and diverse, in case fault or careless omission are arranged, just may bring about great losses.
The purpose of this utility model is at the deficiencies in the prior art, and a kind of water system defroster is provided, and is used for pressure water system, is closing main valve when cutting off the water, the emptying automatically thereupon of terminal water; When opening main valve water supply next time, without any need for other operation, the phenomenon of metalling run out from drain valve can not appear.
The purpose of this utility model is achieved through the following technical solutions.
A kind of water system defroster, comprise main valve switch handwheel, main valve, water inlet end, drain valve, sluice pipe and water side, main valve places between water inlet end and the water side, described sluice pipe is connected on the place, water side of main valve, its end is the vertical drain valve of placing, when drain valve cuts out or opens at main valve, according to the water pressure in the water side, automatic drainage or close.
Described drain valve comprises counterweight, rubber cushion, piston, valve body, open-work and spilled water hole, drain valve is divided into two Room up and down, has a plurality of spilled water holes, the following indoor piston that has around the Side wall of last chamber, can in valve pocket, move up and down, between two Room through hole is arranged up and down, a piston rod is arranged at the top of piston, and its upper end via through holes stretches into the chamber, and head on counterweight, following indoor upper surface, promptly there is rubber cushion on the following Side surface of through hole, on the piston with on the corresponding position of rubber cushion a plurality of open-works are arranged, when piston rises, compress rubber cushion, separate two Room up and down, drain valve cuts out, when piston descends, the water of following chamber rises from the open-work on the piston, enters the chamber, discharges from spilled water hole again.
Spilled water hole on the described drain valve has 2-12.
Open-work on the described piston has 2-8.
The operating principle of this new device is as follows: when closing main valve, open the valve of water consumption device, rely on the natural pressure of terminal water, this pressure is very little, generally below 0.05Mpa, piston is risen, rise but can make in a plurality of open-works of these terminal water on piston, the process through hole between two Room up and down arrives upward chamber, discharges system from a plurality of spilled water holes of last chamber Side wall.When opening main valve, because the main valve discharge pressure is enough high, general pressure of supply water is more than 0.8Mpa, and this pressure can make piston rise, thereby compresses rubber cushion, closes the through hole between two Room up and down, has just closed drain valve.For different regions, different pressure of supply water, can adjust the weight of counterweight, to reach the sensitive reliable of drain valve.
The advantage of this device: overcome the deficiencies in the prior art, make the water system defroster when closing and open main valve, automatically open and close drain valve, remove manually-operated trouble and hysteresis from, can satisfy confession, the antifreeze needs of cutting off the water of industries such as north cold area and extremely frigid zones airport in winter, petroleum industry, chemical industry, various factories, especially under the state of emergency of fire fighting supply, can try to gain time precious to one.
Accompanying drawing of the present utility model is as follows:
Fig. 1 is the scheme of installation of water system defroster;
Fig. 2 is the generalized section of drain valve.
Introduce an embodiment of this device below in conjunction with accompanying drawing.
A kind of water system defroster, the factory that is used for China the Northeast, comprise main valve switch handwheel 1, main valve 2, water inlet end 3, drain valve 4, sluice pipe 5 and water side 6, main valve 2 places between water inlet end 3 and the water side 6, described sluice pipe 5 is connected on 6 places, water side of main valve 2, its end is the vertical drain valve of placing 4, sluice pipe 5 and drain valve 4 being threaded by valve body 10 bottoms, when drain valve 4 cuts out or opens at main valve 2, according to the water pressure in the water side 6, automatic drainage or close.
Described drain valve 4 comprises counterweight 7, rubber cushion 8, piston 9, valve body 10, open-work 11 and spilled water hole 12, drain valve 4 is divided into two Room up and down, have six spilled water holes 12 around the Side wall of last chamber, the following indoor piston 9 that has, can in valve pocket, move up and down, between two Room through hole is arranged up and down, a piston rod is arranged at the top of piston 9, and its upper end via through holes stretches into the chamber, and head on counterweight 7, following indoor upper surface, promptly there is rubber cushion 8 on the following Side surface of through hole, on the piston 9 with on the rubber cushion 8 corresponding positions six open-works 11 are arranged, when piston 9 rises, compress rubber cushion 8, separate two Room up and down, drain valve 4 cuts out, when piston 9 descends, the water of following chamber rises from the open-work 11 on the piston 9, enters the chamber, discharges from spilled water hole 12 again.
When closing main valve 2, open the valve of water consumption device, rely on the natural pressure of terminal water, generally below 0.05Mpa, this pressure is very little, and piston 9 is risen, and rises but can make in six open-works 11 of these terminal water on piston 9, the process through hole between two Room up and down arrives upward chamber, from six spilled water holes, the 12 discharge systems of last chamber Side wall.When opening main valve 2, because the main valve discharge pressure is enough high, general pressure of supply water is more than 0.8Mpa, and this pressure can make piston 9 rise, thereby compresses rubber cushion 8, closes the through hole between two Room up and down, has just closed drain valve 4.For different regions, factory place, different pressure of supply water, can adjust the weight of counterweight 7, to reach the sensitive reliable of drain valve 4.
Claims (4)
1. water system defroster, comprise main valve switch handwheel, main valve, water inlet end, drain valve, sluice pipe and water side, main valve places between water inlet end and the water side, it is characterized in that described sluice pipe is connected on the place, water side of main valve, its end is the vertical drain valve of placing, when drain valve cuts out or opens at main valve, according to the water pressure in the water side, automatic drainage or close.
2. water system defroster according to claim 1, it is characterized in that described drain valve comprises counterweight, rubber cushion, piston, valve body, open-work and spilled water hole, drain valve is divided into two Room up and down, have a plurality of spilled water holes around the Side wall of last chamber, the following indoor piston that has can move up and down in valve pocket, and through hole is arranged between two Room up and down, one piston rod is arranged at the top of piston, its upper end via through holes stretches into the chamber, and heads on counterweight, following indoor upper surface, there is rubber cushion on the following Side surface that is through hole, on the piston with on the corresponding position of rubber cushion a plurality of open-works are arranged, when piston rises, compress rubber cushion, separate two Room up and down, drain valve cuts out, and when piston descended, the water of following chamber rose from the open-work on the piston, enter the chamber, discharge from spilled water hole again.
3. water system defroster according to claim 1 is characterized in that the spilled water hole on the described drain valve has 2-12.
4. water system defroster according to claim 1 is characterized in that the open-work on the described piston has 2-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256576 CN2460572Y (en) | 2000-11-29 | 2000-11-29 | Device for preventing freezing for water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256576 CN2460572Y (en) | 2000-11-29 | 2000-11-29 | Device for preventing freezing for water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2460572Y true CN2460572Y (en) | 2001-11-21 |
Family
ID=33613262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00256576 Expired - Fee Related CN2460572Y (en) | 2000-11-29 | 2000-11-29 | Device for preventing freezing for water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2460572Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405308A (en) * | 2018-10-29 | 2019-03-01 | 珠海格力电器股份有限公司 | Pump water system and its antifreezing control method and device, storage medium |
-
2000
- 2000-11-29 CN CN 00256576 patent/CN2460572Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405308A (en) * | 2018-10-29 | 2019-03-01 | 珠海格力电器股份有限公司 | Pump water system and its antifreezing control method and device, storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |