CN202176910U - High-pressure waterway control system - Google Patents
High-pressure waterway control system Download PDFInfo
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- CN202176910U CN202176910U CN2011202728956U CN201120272895U CN202176910U CN 202176910 U CN202176910 U CN 202176910U CN 2011202728956 U CN2011202728956 U CN 2011202728956U CN 201120272895 U CN201120272895 U CN 201120272895U CN 202176910 U CN202176910 U CN 202176910U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a high pressure water route control system, include the high pressure water pump and the operation component control valve that link to each other through the pipeline, be equipped with the off-load valve on the pipeline, the delivery port and the water tank intercommunication of off-load valve, the off-load valve is parallelly connected with the easy start valve, the delivery port and the water tank intercommunication of easy start valve. The utility model discloses a function complex of no-load start, automatic off-load, safe overflow still has simple structure compactness, and installation adjustment is convenient, and the cost is reduced has improved advantages such as system reliability and maintainability.
Description
Technical field
The utility model relates generally to sanitation equipment or environmental sanitation vehicles field, refers in particular to a kind of high pressure water path control system that is applied on sanitation equipment or the environmental sanitation vehicles.
Background technique
The high pressure water circuit system is widely used in the environmental sanitation machinery such as cleaning Vehicle, and its working pressure generally can reach 10MPa, and pump outlet must be installed safety valve (relief valve) and limit system pressure, and each element is in the safe handling scope on the protection water route.When the operation element is in closed condition; Water pump water outlet can't be from operation element ejection, and this moment, system pressure reached oil pressure relief, water pump water outlet all with high pressure conditions from the safety valve overflow return tank; But can produce the lot of energy loss simultaneously; Cause water temperature rise, each parts Environmental Conditions worsens, all kinds of problems such as Sealing is aging, the quick wearing and tearing of water pump.For head it off; The general high voltage water circuit system also is equipped with the automatic deloading valve, when the operation element is in closed condition, when water pump water outlet pressure rises to the unloading valve setting pressure; Open the bypass backwater road of unloading valve, make water pump water outlet return water tank from the bypass water route with low-pressure state.Water pump water outlet pressure has experienced one and has risen to the unloading valve setting pressure from low pressure, fall back to such variation in pressure process of low pressure again, so the starting resistance square is very big, causes starting of pump station difficulty and stall, damages water pump easily, causes the water pump premature damage.For head it off; Increased bypass water valve again on this basis in the most domestic cleaning Vehicle at present through electric logic control; When starting during water pump, the bypass water valve is opened, water pump water outlet with low pressure from bypass water valve reflow tank; Reduce exit of pump pressure and resisting moment, make water pump with light start; When the operation element moved, the bypass water valve cut out, and water pump water outlet all gets into the operation element.Though this mode has played the effective protection to secondary machine and high-pressure water pump, safety valve, unloading valve, bypass water valve need be set simultaneously and combine electric logic control, comparatively complicated in structure and the control, cost is higher, the fault point is many.
The model utility content
The technical problem that the utility model will solve just is: to the problem of existing technology existence; The utility model provides a kind of can realize no-load starting, safe overflow, automatic deloading function, and the high pressure water path control system that structure control is simple, with low cost, reliability is high.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of high pressure water path control system; Comprise the high-pressure water pump and the operation element control valve that link to each other through pipeline, said pipeline is provided with unloading valve, and the water outlet of said unloading valve is communicated with water tank; Said unloading valve is parallelly connected with easy starting valve, and the water outlet of said easy starting valve is communicated with water tank.
Further improvement as the utility model:
The water intake of said easy starting valve is between unloading valve water intake and operation element control valve water intake.
The water intake of said easy starting valve is between unloading valve water intake and high-pressure water pump water outlet.
Said easy starting valve is the double check valve of band spring reset.
Said easy starting valve is a solenoid directional control valve.
Compared with prior art, the advantage of the utility model is:
1, the utility model is provided with an easy starting valve at the high-pressure water pump water outlet, and import and export is in connected state when pressure is very low owing to be prone to starting valve, and water outlet can be back to water tank through being prone to starting valve when high-pressure water pump had just been opened, and realized no-load starting.Add safe overflow and automatic deloading function that upper pipeline Central Plains has unloading valve itself to be had, thereby make the utility model have the function of no-load starting, safe overflow, automatic deloading simultaneously.
2, the utility model is integrated in no-load starting, safe overflow, automatic deloading function on unloading valve and the easy starting valve, and structure control is simple, cost is lower, has reduced the fault point, has promoted the reliability and maintainability of system.
3, the utility model is integrated in no-load starting, safe overflow, automatic deloading function on unloading valve and the easy starting valve, and structure is compact more, and the pipeline installation footprint of water circuit system is littler, and the installation adjustment is more convenient.
Description of drawings
Structural representation when Fig. 1 is applied to the high pressure water route for the utility model;
Fig. 2 is the utility model embodiment 1 a fundamental diagram;
Fig. 3 is the utility model embodiment 2 a fundamental diagram;
Fig. 4 is the utility model embodiment 3 a fundamental diagram.
Marginal data:
1, assistant engine; 2, high-pressure water pump; 31, unloading valve; 32, be prone to starting valve; 4, operation element control valve; 5, nozzle; 6, water tank; 7, return pipe.
Embodiment
Below will combine accompanying drawing and specific embodiment that the utility model is done further explain.
Embodiment 1: as depicted in figs. 1 and 2; The high pressure water path control system of the utility model; Comprise the high-pressure water pump 2 and operation element control valve 4 that link to each other through pipeline; High-pressure water pump 2 provides power by assistant engine 1, and the operation element is example with the nozzle in this instance, and this operation element control valve 4 is nozzle control valve.Pipeline is provided with unloading valve 31, and the water outlet of unloading valve 31 is communicated with water tank 6, and unloading valve 31 is parallelly connected with easy starting valve 32, and the water outlet that is prone to starting valve 32 is communicated with water tank 6.In the present embodiment, be prone to the double check valve of starting valve 32 for the band spring reset.When pressure was very low, hydraulic pressure overcomes spring force was backed down nonreturn valve core, was prone to the starting valve import and export in connected state; When pressure increases to certain value, the complete compressive strain of spring in the valve body and make valve closing.The water intake of unloading valve 31 and easy starting valve 32 is communicated with the water route between operation element control valve 4 and the high-pressure water pump 2, and water outlet is through return pipe 7 joining water box 6.The utility model is prone to starting valve 32 through being provided with, cooperate unloading valve 31, thereby the function that has realized no-load starting, safe overflow, automatic deloading is compound, simple and compact for structure, installs easy to adjustly, has reduced cost, has improved system reliability and maintainability.
Further, in the present embodiment, the water intake that is prone to starting valve 32 is between unloading valve 31 water intakes and operation element control valve 4 water intakes.
In the present embodiment, be prone to starting valve 32 and also can be merged into an integral body with unloading valve 31.
The working principle of the utility model:
As shown in Figure 2, during starting high-pressure water pump 2, two kinds of operating modes are arranged:
1) the operation element is in closed condition: this moment, operation element control valve 4 was closed, and high-pressure water pump 2 water outlets can not flow to nozzle 5, but can overcome the spring force that is prone to starting valve 32 with low-pressure very, from being prone to starting valve 32 reflow tanks 6, realized no-load starting.Behind high-pressure water pump 2 normal startings, water-outlet quantity increases, and hydraulic pressure rises.Because it is little to be prone to the Returnning spring elasticity coefficient of starting valve 32, easy starting valve 32 rises along with hydraulic pressure and cuts out gradually.When hydraulic pressure continued to rise, the A mouth pressure was followed rising.When the rising of A mouth pressure surpassed the specified oil pressure relief of unloading valve 31, unloading valve 31 was opened, and water pump water outlet is realized safe relief function through unloading valve, return pipe 7 reflow tanks 6.Because operation element control valve 4 is closed, add the effect of the one-way valve in the unloading valve 31, make the A mouth keep high pressure; So unloading valve 31 is in opening state; High-pressure water pump 2 water outlets transfer low-pressure state to from high pressure conditions, from unloading valve 31 off-loads through after blink; Lowpressure stream recovery tank 6 is realized automatic low pressure unloading function.
2) the operation element is in running order: operation this moment element control valve 4 is opened, and high-pressure water pump 2 water outlets can also can promptly can realize no-load starting from being prone to starting valve 32 reflow tanks 6 from nozzle 5 ejections.Behind high-pressure water pump 2 normal startings, water-outlet quantity increases, and hydraulic pressure rises.Because it is little to be prone to the Returnning spring elasticity coefficient of starting valve 32, easy starting valve 32 rises along with hydraulic pressure and cuts out gradually.Because A mouth, B mouth, nozzle 5 are connected, hydraulic pressure is lower, does not reach the specified oil pressure relief of unloading valve 31; So unloading valve 31 is in closed condition; High-pressure water pump 2 water outlets can not be returned water tank 6 from unloading valve 31, and hydraulic pressure rises to required working pressure, all get into the operation element.
Can find out that from above no matter the in running order or closed condition of operation element, the high pressure water circuit system in this programme all can be realized no-load starting, and system can realize automatic low pressure off-load, system's heating is little, and the energy interest rate is high.
Embodiment 2:
As shown in Figure 3, the structure of present embodiment and embodiment 1 are basic identical, and difference just is: the water intake that is prone to starting valve 32 is between unloading valve 31 water intakes and high-pressure water pump 2 water outlets.
Embodiment 3:
As shown in Figure 4, the structure of present embodiment and embodiment 1 are basic identical, and difference just is: be prone to starting valve 32 and be solenoid directional control valve; During starting high-pressure water pump 2,, solenoid directional control valve is got through electrical control; High-pressure water pump 2 water outlets can realize no-load starting from solenoid directional control valve reflow tank 6; When starting finishes, make the solenoid directional control valve dead electricity close the passage that solenoid directional control valve leads to water tank 6 through electrical control.
Below only be the preferred implementation of the utility model, the protection domain of the utility model also not only is confined to the foregoing description, and all technological schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.
Claims (5)
1. high pressure water path control system; Comprise the high-pressure water pump (2) and the operation element control valve (4) that link to each other through pipeline; Said pipeline is provided with unloading valve (31); The water outlet of said unloading valve (31) is communicated with water tank (6), it is characterized in that: said unloading valve (31) is parallelly connected with easy starting valve (32), and the water outlet of said easy starting valve (32) is communicated with water tank (6).
2. high pressure water path control system according to claim 1 is characterized in that: the water intake of said easy starting valve (32) is positioned between unloading valve (31) water intake and operation element control valve (4) water intake.
3. high pressure water path control system according to claim 1 is characterized in that: the water intake of said easy starting valve (32) is positioned between unloading valve (31) water intake and high-pressure water pump (2) water outlet.
4. according to claim 1 or 2 or 3 described high pressure water path control systems, it is characterized in that: said easy starting valve (32) is the double check valve of band spring reset.
5. according to claim 1 or 2 or 3 described high pressure water path control systems, it is characterized in that: said easy starting valve (32) is a solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202728956U CN202176910U (en) | 2011-07-29 | 2011-07-29 | High-pressure waterway control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202728956U CN202176910U (en) | 2011-07-29 | 2011-07-29 | High-pressure waterway control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176910U true CN202176910U (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202728956U Expired - Lifetime CN202176910U (en) | 2011-07-29 | 2011-07-29 | High-pressure waterway control system |
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| CN (1) | CN202176910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373689A (en) * | 2011-07-29 | 2012-03-14 | 中联重科股份有限公司 | High-pressure waterway control system |
| CN108797489A (en) * | 2018-06-21 | 2018-11-13 | 聊城中通新能源汽车装备有限公司 | Control system and method for sweeper high pressure water circuit intelligent protection water knockout drum |
-
2011
- 2011-07-29 CN CN2011202728956U patent/CN202176910U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373689A (en) * | 2011-07-29 | 2012-03-14 | 中联重科股份有限公司 | High-pressure waterway control system |
| CN108797489A (en) * | 2018-06-21 | 2018-11-13 | 聊城中通新能源汽车装备有限公司 | Control system and method for sweeper high pressure water circuit intelligent protection water knockout drum |
| CN108797489B (en) * | 2018-06-21 | 2019-10-25 | 聊城中通新能源汽车装备有限公司 | Control system and method for sweeper high pressure water circuit intelligent protection water segregator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOL Free format text: FORMER OWNER: ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20120518 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120518 Address after: 410013 Changsha high tech Development Zone, Hunan Province, No. 307 South Road, silver basin Patentee after: Changsha Zoomlion Environmental Industry Co.,Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 410000 Hunan province Changsha hi tech Development Zone, Lin Yulu No. 288 Patentee after: ZOOMLION ENVIRONMENTAL INDUSTRY Co.,Ltd. Address before: 410013 Changsha high tech Development Zone, Hunan Province, No. 307 South Road, silver basin Patentee before: Changsha Zoomlion Environmental Industry Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
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| CX01 | Expiry of patent term |