CN202330147U - Pulse high pressure water stabilizing device in fire hose explosion testing machine - Google Patents
Pulse high pressure water stabilizing device in fire hose explosion testing machine Download PDFInfo
- Publication number
- CN202330147U CN202330147U CN2011204445078U CN201120444507U CN202330147U CN 202330147 U CN202330147 U CN 202330147U CN 2011204445078 U CN2011204445078 U CN 2011204445078U CN 201120444507 U CN201120444507 U CN 201120444507U CN 202330147 U CN202330147 U CN 202330147U
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- cylinder body
- high pressure
- pressure
- fire hose
- piston
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Abstract
The utility model relates to a pulse high pressure water stabilizing device in a fire hose explosion testing machine. A cylinder body is fixedly arranged on a base of the device, a cylinder body sealing head is fixedly arranged on the upper portion of the cylinder body, a piston is arranged in the cylinder body, the inside of the cylinder body is divided into an air pressure chamber and a water pressure chamber through a piston, the piston is matched with the inner wall of the cylinder body through a square sealing ring, an air injection port is arranged on the outer wall of the cylinder body of the air pressure chamber, and a water injection stabilizing port is arranged on the outer wall of the cylinder body of the water pressure chamber. The pulse high pressure water stabilizing device is utilized to conduct exposition tests of a fire hose, high pressure water injection is conducted continuously in the testing process, water pressure is stabilized, and testing data are accurate.
Description
Technical field
The utility model belongs to fire fighting equipment detecting instrument field, particularly a kind of fire hose explosion test machine medium sized artery water under high pressure stable-pressure device.
Background technology
At present, in fire hose explosion testing experiment, testing equipment hydraulic pressure rate of pressure rise will satisfy the 5.0-10.0MPa/min. test pressure and be not less than burst pressure 5 MPa.Test should be not more than 1% code requirement with the water injection pressure undulating quantity.Adopt electronic plunger type force (forcing) pump can satisfy the compression rate requirement, but the water pressure fluctuations value but is far longer than in the practice ± 1% near 5%, undulating quantity can not satisfy requirement of experiment.Mainly come from ram pump itself through analyzing the water pressure fluctuations value, when pressure is approaching when meeting or exceeding the test pressure critical value.The plunger stop motion, when pressure in the test water system greater than the ram pump working columns beyond the Great Wall during cavity pressure, the water under high pressure in the stop valve return blocking-up high-pressure system flows backwards.Just the phenomenon that thereupon inevitably flows backwards of the water under high pressure in the high-pressure system in a flash of system's stop valve return will cause that system's internal pressure value does not reach the trial value requirement.The phenomenon that instantaneous pressure has a trace to descend.
The method that tradition is eliminated the water pressure fluctuations value is employed in water-filled high-pressure sealed water pot of increase in the high pressure water system usually; Increase the buffering of its ram pump water pressure fluctuations; But because the characteristic of water, the slit between the hydrone is less, has between the molecule to interact so it is difficult to compression; Ratio of compression is zero no better than, so do not have pressure buffer stability maintenance function.
Summary of the invention
The purpose of the utility model just is to provide such pulsation water high voltage stabilizing device, and it is excessive to solve in the fire hose explosion test that exists in the prior art water injection pressure fluctuation, can not satisfy the technical matters of testing requirements.
It is following to solve the problems of the technologies described above the technical scheme that is adopted: fixed cylinder body on the base of pulsation water high voltage stabilizing device in the fire hose explosion test machine; The fixed cylinder body end socket that is being provided with on cylinder body top; In cylinder interior piston is being set, piston is divided into air-pressure chamber and hydraulic chamber with cylinder interior, and piston matches with inboard wall of cylinder block through the quad seal circle; On the air-pressure chamber outer wall of cylinder block, gas injection port is being set, water filling voltage stabilizing mouth is being set at hydraulic chamber's outer wall of cylinder block.
In the practice; Because the described stable-pressure device of the utility model is that a centre isolates fully; And the airtight cylinder body container that separation layer can move each other, this cylinder body container is divided into two cavitys, and a cavity is hydraulic chamber and system high pressure water UNICOM; Its volume can satisfy the working volume of electrical plunger pump 1-2 water discharge in second, and another cavity is the pressurized air that adds 0.5-0.7 MPa in the air-pressure chamber.When test pressure surpassed the test pressure critical value, test hydraulic chamber volume increased in this container, and piston moves to air-pressure chamber, the compression gas-pressure chamber, and the air-pressure chamber volume reduces pressure and increases, and air-pressure chamber pressure equals the pressure of water in the system; When the system pressure that the backflow that produces when electrical plunger pump causes reduced, because air-pressure chamber pressure is greater than system water pressure, piston moved to hydraulic chamber, and when pressure reached mutual balance, piston was static, and system's internal pressure tends towards stability.Thereby reach voltage regulation result.This has thoroughly solved because electrical plunger pump stop valve return causes the water under high pressure refluence, thereby causes in the fire hose test process, and the water injection pressure fluctuation is excessive, and test data is unstable, inaccurate situation.
The beneficial effect of the utility model: fire hose carries out high pressure water injection continuously in the explosion test process, stable water pressure, and test data is accurate.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the main TV structure synoptic diagram of the utility model.
Embodiment
Pulsation water under high pressure stable-pressure device is as shown in Figure 1 in the fire hose explosion test machine, fixed cylinder body 3 on the base 5; The fixed cylinder body end socket 2 that is being provided with on cylinder body 3 tops; Piston 7 in cylinder body 3 set inside, piston 7 is divided into air-pressure chamber 8 and hydraulic chamber 9 with cylinder body 3 inside, and piston 7 matches with cylinder body 3 inwalls through quad seal circle 4; On air-pressure chamber 8 outer wall of cylinder block, gas injection port 1 is being set, water filling voltage stabilizing mouth 6 is being set at hydraulic chamber's 9 outer wall of cylinder block.Said piston 7 is made up of steel or aluminium matter or spheroidal-graphite cast iron.Base 5 is made up of steel or iron.Said cylinder body 3 is made up of weldless steel tube or cast iron.Cylinder body end socket 2 is made up of steel or iron.
Claims (5)
1. pulsation water under high pressure stable-pressure device in the fire hose explosion test machine; It is characterized in that: base (5) is gone up fixed cylinder body (3); The fixed cylinder body end socket (2) that is being provided with on cylinder body (3) top; Piston (7) in cylinder body (3) set inside, piston (7) is divided into air-pressure chamber (8) and hydraulic chamber (9) with cylinder body (3) inside, and piston (7) matches with cylinder body (3) inwall through quad seal circle (4); On air-pressure chamber (8) outer wall of cylinder block, gas injection port (1) is being set, outer wall of cylinder block is being provided with water filling voltage stabilizing mouth (6) in hydraulic chamber (9).
2. according to pulsation water under high pressure stable-pressure device in the said fire hose explosion of claim 1 test machine, it is characterized in that: said piston (7) is made up of steel or aluminium matter or spheroidal-graphite cast iron.
3. according to pulsation water under high pressure stable-pressure device in the said fire hose explosion of claim 1 test machine, it is characterized in that: base (5) is made up of steel or iron.
4. according to pulsation water under high pressure stable-pressure device in the said fire hose explosion of claim 1 test machine, it is characterized in that: said cylinder body (3) is made up of weldless steel tube or cast iron.
5. according to pulsation water under high pressure stable-pressure device in the said fire hose explosion of claim 1 test machine, it is characterized in that: cylinder body end socket (2) is made up of steel or iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204445078U CN202330147U (en) | 2011-11-11 | 2011-11-11 | Pulse high pressure water stabilizing device in fire hose explosion testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204445078U CN202330147U (en) | 2011-11-11 | 2011-11-11 | Pulse high pressure water stabilizing device in fire hose explosion testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330147U true CN202330147U (en) | 2012-07-11 |
Family
ID=46442125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204445078U Expired - Fee Related CN202330147U (en) | 2011-11-11 | 2011-11-11 | Pulse high pressure water stabilizing device in fire hose explosion testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330147U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520971A (en) * | 2013-10-30 | 2014-01-22 | 重庆烟草工业有限责任公司 | Solid-liquid filtering device |
| CN105020533A (en) * | 2015-08-25 | 2015-11-04 | 核工业理化工程研究院 | Sealing device used for hydraulic bursting test of fiber composite round pipe |
| CN105606457A (en) * | 2016-01-15 | 2016-05-25 | 公安部四川消防研究所 | Onsite fire hose detection device quick in water filling and pressure stabilizing |
-
2011
- 2011-11-11 CN CN2011204445078U patent/CN202330147U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520971A (en) * | 2013-10-30 | 2014-01-22 | 重庆烟草工业有限责任公司 | Solid-liquid filtering device |
| CN103520971B (en) * | 2013-10-30 | 2015-12-30 | 重庆烟草工业有限责任公司 | A kind of solid-liquid filtration device |
| CN105020533A (en) * | 2015-08-25 | 2015-11-04 | 核工业理化工程研究院 | Sealing device used for hydraulic bursting test of fiber composite round pipe |
| CN105606457A (en) * | 2016-01-15 | 2016-05-25 | 公安部四川消防研究所 | Onsite fire hose detection device quick in water filling and pressure stabilizing |
| CN105606457B (en) * | 2016-01-15 | 2018-07-10 | 公安部四川消防研究所 | A kind of energy rapid water filling and the fire hose on-site detecting device of voltage stabilizing |
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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: 20120711 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |