CN101983782B - High-pressure water cleaning device - Google Patents
High-pressure water cleaning device Download PDFInfo
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- CN101983782B CN101983782B CN2010105081952A CN201010508195A CN101983782B CN 101983782 B CN101983782 B CN 101983782B CN 2010105081952 A CN2010105081952 A CN 2010105081952A CN 201010508195 A CN201010508195 A CN 201010508195A CN 101983782 B CN101983782 B CN 101983782B
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Abstract
A high-pressure water cleaning device includes a filter, a high-pressure plunger pump, a safe overflow valve, a spray gun and a connection pipeline, an overflow pipeline is connected between a water inlet of the high-pressure plunger pump and a water outlet of the safe overflow valve, the overflow pipeline is equipped with a transition water tank, a liquid level switch is installed in the transition water tank, and the liquid level switch keeps linkage with a switch of the plunger pump of the high-pressure water cleaning device. With the transition water tank installed on the overflow pipeline, the high-pressure water cleaning device has the benefits as follows: flux is directly monitored by the liquid level switch in the transition water tank, the high-pressure water cleaning device is shut down when the liquid level in the tank is lower than a predetermined value, there is no demand on a water feeding pressure is not demanded, and the cleaning device is available by ensuring the water inflow; the overflow water runs through the stainless steel transition water tank to be cool and buffered, temperature of the water rises very slowly; impact of water is eliminated by buffering of the air; a breather valve automatically opens when the water level of the water tank declines, the water tank is communicated with the atmosphere, the water inlet of the high-pressure plunger pump has not negative pressure, and cavitation can be avoided.
Description
Technical field
The present invention relates to a kind of water under high pressure cleaning equipment, refer to a kind of into water under high pressure cleaning equipment of water defencive function that has especially.
Background technology
Consult shown in Figure 1; The water under high pressure cleaning equipment mainly is made up of connecting line 40 and safety overflow valve 50 between filter 10, high-pressure plunger pump 20, spray gun 30, each device; For the hydraulic pressure with water outlet is controlled at the setting pressure state; Generally can a safety overflow valve 50 be set, through adjusting the pressure of these safety overflow valve 50 control water outlets, when water outlet hydraulic pressure exceeds setting value at the delivery port of high-pressure plunger pump 20; 50 of safety overflow valves have played the effect of overflow pressure release, and pass through overflow passage 51 discharges of the overflow delivery port of safety overflow valve 50.Be using water wisely, overflow passage 51 is connected to the water inlet of high-pressure plunger pump 20, and the water that goes out through overflow passage 51 overflows is got back to high-pressure plunger pump 20 once more and recycled.In order to prevent in the use owing to the not enough pump seal that causes of inflow, check valve damage; Existing way is to install a pressure switch 21 at the water inlet of high-pressure plunger pump 20; The size that reflects inflow through detection to force value; (be generally 0.5～3bar), pressure switch is broken off, and equipment is out of service when the hydraulic pressure of water inlet is lower than setting value; In addition, high-pressure cleaning device is in use through regular meeting's temporary close spray gun 30, and this moment, water will be discharged through safety overflow valve 50 overflow delivery ports; Circulate through overflow passage 51; Because equipment is in operation acting state, causes circulating water temperature to raise, can rise to more than 55 degree about 5～10 minutes water temperatures greatly; For fear of parts and lubricating systems such as the too high damage sealing of water temperature, plungers; Generally can on overflow passage 51, install a temperature control valve 52, when temperature reached setting value, temperature control valve 52 was opened and is discharged hot water to reduce the temperature in the high-pressure plunger pump 20.
The water under high pressure cleaning equipment is not just being given unnecessary details its principle as a kind of common equipment; Yet in use but there is following defective in existing water under high pressure cleaning equipment as shown in fig. 1:
1. detect force value and might not truly reflect the real-time water yield of going into, the scene is gone into the water yield through regular meeting and is met the requirements, but pressure of supply water does not reach the minimum that pressure switch 21 is set, and equipment can't start operation; And the pressure of inlet pipeline also can fluctuate, and this will cause the frequent shutdown of equipment; Water booster pump 60 has so just increased cost, trivial operations to improve intake pressure in order to guarantee this existing equipment stable operation, often will to cooperate to install additional into;
2. in the moment of closing spray gun 30, water hammer can take place, damage equipment low-pressure end parts are like low pressure seal, low pressure line, filter etc.;
3. the water inlet pressure of high-pressure plunger pump 20 is lower than the saturation pressure of work water temperature, so can cause a part of vaporizing liquid; When bubble after the evaporation got into higher regional of pressure, pressurized condensed suddenly, so liquid all around just hitherward replenishes, causes hydraulic blow, and this phenomenon is called cavitation.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of novel water under high pressure cleaning equipment, and it has into water defencive function, can also avoid in protection that above-mentioned equipment is difficult to start in the high-pressure plunger pump, the problem of water attack and cavitation erosion.
For solving the problems of the technologies described above; The invention provides a kind of water under high pressure cleaning equipment; Comprise filter, high-pressure plunger pump, safety overflow valve, spray gun and connecting line, between the water inlet of said high-pressure plunger pump and safety overflow valve overflow delivery port, be connected with an overflow passage, it is characterized in that: on said overflow passage, install a transition water tank additional; In said transition water tank, a liquid-level switch is set, the switch of this liquid-level switch and said water under high pressure cleaning equipment keeps interlock.
Further improvement of the present invention is that said transition water tank is a closed box, and is formed with an air chamber on said closed box top.
Further improvement of the present invention is, is provided with a breather valve at said transition water tank upper.
Further improvement of the present invention is that the material of said transition water tank is a stainless steel.
The present invention is through installing the transition water tank additional on overflow passage; Beneficial effect is: utilize the liquid-level switch in the transition water tank to come directly monitoring flow, when liquid level is lower than setting value in the casing, close down the water under high pressure cleaning equipment; Water feeding pressure is not required, guarantee that inflow gets final product; The water of overflow is through the heat radiation of transition water tank and buffering of stainless steel, and temperature rises very slow; Eliminated the impact of water attack through the buffering of air chamber; Breather valve is opened when cistern water level descends automatically, is communicated with atmosphere, and the high-pressure plunger pump water inlet negative pressure can not occur, also just can not cavitate.
Description of drawings
Fig. 1 is the schematic diagram of prior art mesohigh cleaning equipment;
Fig. 2 is the schematic diagram of high-pressure cleaning device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further description.
Consult shown in Figure 2; Water under high pressure cleaning equipment of the present invention comprises connecting line 40 and the safety overflow valve 50 between filter 10, high-pressure plunger pump 20, spray gun 30, each device equally; And the present invention is that with respect to the improvement of existing equipment it is installing a transition water tank 70 additional between safety overflow valve 50 overflow delivery ports and high-pressure plunger pump 20 water inlets
This transition water tank 70 is the casing of a sealing, adopts stainless steel to make, and the setting height place in transition water tank 70 is provided with a liquid-level switch 71, and the switch of this liquid-level switch 71 and high-pressure plunger pump 20 keeps interlock; Transition water tank 70 is designed to can't be full of by overflow water in use, but has kept the impact that a part of air chamber 72 has been used to eliminate water attack at an upper portion thereof.
When high-pressure cleaning device of the present invention is worked, utilize the liquid-level switch 71 in this transition water tank 70 to monitor flow, when liquid level is lower than setting value in the casing, close high-pressure column plug valve 20; The transition water tank 70 of stainless steel also can provide the effect of heat radiation to the water of overflow, and temperature rises very slow.
As a preferred embodiment of the present invention, also installed a breather valve 73 additional on the top of transition water tank 70, it is opened when transition water tank 70 water levels descend automatically, is communicated with atmosphere, and high-pressure plunger pump 20 water inlets negative pressure can not occur, just can not cavitate yet.
Claims (3)
1. water under high pressure cleaning equipment; Comprise filter, high-pressure plunger pump, safety overflow valve, spray gun and connecting line; Between the water inlet of said high-pressure plunger pump and safety overflow valve overflow delivery port, be connected with an overflow passage; Install a transition water tank on the said overflow passage additional, in said transition water tank, a liquid-level switch is set, the switch of this liquid-level switch and said water under high pressure cleaning equipment keeps interlock; It is characterized in that: said transition water tank is a closed box, and is formed with an air chamber on said closed box top.
2. equipment as claimed in claim 1 is characterized in that: be provided with a breather valve at said transition water tank upper.
3. like each described equipment in the claim 1 to 2, it is characterized in that: the material of said transition water tank is a stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105081952A CN101983782B (en) | 2010-10-15 | 2010-10-15 | High-pressure water cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105081952A CN101983782B (en) | 2010-10-15 | 2010-10-15 | High-pressure water cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101983782A CN101983782A (en) | 2011-03-09 |
| CN101983782B true CN101983782B (en) | 2012-05-23 |
Family
ID=43640949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105081952A Expired - Fee Related CN101983782B (en) | 2010-10-15 | 2010-10-15 | High-pressure water cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101983782B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076920A (en) * | 2016-06-13 | 2016-11-09 | 镇江金山交通信息科技有限公司 | A kind of cleaning equipment |
| CN106050396B (en) * | 2016-07-29 | 2018-09-04 | 山东华盛中天机械集团股份有限公司 | Cooling device and the closed jetting machine for being equipped with the cooling device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060260658A1 (en) * | 2005-02-28 | 2006-11-23 | Ez Environmental Solutions Corporation | Closed-loop containment assembly and method for a pressure washing apparatus with a non-recirculating fluid heating compartment |
| CN201023092Y (en) * | 2007-04-17 | 2008-02-20 | 深圳市科达超声自动化设备有限公司 | High pressure cleaning machine |
| JP5111091B2 (en) * | 2007-12-18 | 2012-12-26 | サクラ精機株式会社 | In-line cleaning device |
| CN201267811Y (en) * | 2008-09-12 | 2009-07-08 | 福建省晋江市三力机车有限公司 | Environment-friendly type high pressure cleaning machine |
| CN201529590U (en) * | 2009-06-15 | 2010-07-21 | 李成德 | High-pressure water spraying unit |
| CN201552151U (en) * | 2009-12-24 | 2010-08-18 | 上海交通大学 | Water jet circulation cleaning device |
-
2010
- 2010-10-15 CN CN2010105081952A patent/CN101983782B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101983782A (en) | 2011-03-09 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20141015 |
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| EXPY | Termination of patent right or utility model |