CN203335367U - Protection system for high-pressure pump - Google Patents
Protection system for high-pressure pump Download PDFInfo
- Publication number
- CN203335367U CN203335367U CN2013203421677U CN201320342167U CN203335367U CN 203335367 U CN203335367 U CN 203335367U CN 2013203421677 U CN2013203421677 U CN 2013203421677U CN 201320342167 U CN201320342167 U CN 201320342167U CN 203335367 U CN203335367 U CN 203335367U
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- China
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- water
- pressure
- service pump
- pressure service
- pump
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- Expired - Fee Related
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Abstract
The utility model discloses a protection system for a high-pressure pump. The protection system for the high-pressure pump comprises a high-pressure pump body and a water pump. A water outlet pipe opening of the water pump is communicated and connected with a water inlet pipe opening of the high-pressure pump body through a connecting pipeline, and the high-pressure pump body is electrically connected with a power source through a protection circuit. The protection circuit comprises a water pressure inductive switch unit used for measuring water pressure signals inside the connecting pipeline, and the water pressure inductive switch unit regulates the connecting and disconnecting state of the protection circuit according to the measured water pressure signals. By the adoption of the protection circuit and the water pressure inductive switch unit which is arranged on the protection circuit and used for measuring the water pressure signals inside the connecting pipeline, when water pressure is measured to be excessively low, the protection circuit can be disconnected automatically, accordingly, electric connection between the high-pressure pump body and the power source can not be achieved, and therefore highly sensitive water shortage protection can be achieved for the high-pressure pump body.
Description
Technical field
The utility model relates to a kind of protective system for high-pressure service pump.
Background technique
The water inlet protective system of current high-pressure service pump (280Mpa) all adopts boiler alarm to be protected superpressure pump.Adopt boiler alarm can't realize automatically protecting effect, needs action is artificially cut off the power supply circuits of superpressure pump and is protected.Therefore, easily cause the hysteresis of high-pressure service pump excessive low water level protection, cause high-pressure service pump fluid end (piston system) to cause damage because of lack of water.Showing according to the relevent statistics in the high-pressure service pump damaged, is due to damages of cutting off the water supply of high-pressure service pump fluid end more than 80%, thus be necessary to provide a kind of highly sensitive, can automatically carry out the protective system of excessive low water level protection to high-pressure service pump.High-pressure service pump needs it to be lubricated with cooling by circulating cooling system by machine oil in the high-speed motion situation in addition; although and be provided with at present oil temperature gauge for reacting the machine oil oil temperature or beacon on high-pressure service pump for judging whether circulating cooling system works; but it can't the situation such as kill while causing the high-pressure service pump inner engine oil to be rapidly heated at circulating cooling system oil starvation, obstruction and crankshaft-link rod; high-pressure service pump is protected automatically, therefore easily caused the damage of high-pressure service pump crankshaft-link rod.
Summary of the invention
The purpose of this utility model is to provide a kind of protective system for high-pressure service pump, and it can be protected automatically to high-pressure service pump, lack of water.
For achieving the above object; the utility model has adopted following technological scheme: a kind of for high-pressure service pump, protective system; it is characterized in that: comprise high-pressure service pump and water pump; the effluent pipe mouth of water pump is connected and is connected by connecting tube with the water inlet pipe mouth of high-pressure service pump; between high-pressure service pump and power supply, by protective circuit, be electrically connected to; described protective circuit comprises for measuring the water pressure sensing switch element of hydraulic signal in connecting tube, the make and break state of the hydraulic signal regulation and control protective circuit that water pressure sensing switch element basis records.
The beneficial effects of the utility model are: by the water pressure sensing switch element of hydraulic signal in the measurement connecting tube arranged on the protective circuit that arranges and protective circuit; when recording hydraulic pressure when too low; will the automatic disconnection protective circuit; make the disconnection that is electrically connected between high-pressure service pump and power supply, thereby high-pressure service pump is carried out to highly sensitive excessive low water level protection.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Order of the present utility model is to provide a kind of can carry out fast to high-pressure service pump 10 high-pressure service pump 10 protective systems of excessive low water level protection.Its scheme of taking specifically as shown in Figure 1; a kind of protective system for high-pressure service pump 10; comprise high-pressure service pump 10 and water pump 20; the effluent pipe mouth of water pump 20 is connected and is connected by connecting tube 21 with the water inlet pipe mouth of high-pressure service pump 10; between high-pressure service pump 10 and power supply, by protective circuit 30, be electrically connected to; described protective circuit 30 comprises for measuring the water pressure sensing switch element of connecting tube 21 interior hydraulic signals, the make and break state of the hydraulic signal regulation and control protective circuit 30 that water pressure sensing switch element basis records.During concrete enforcement, the water pressure sensing switch element preferably adopts the pressure gauge with electric contact 31 arranged on connecting tube 21 to form.Its pressure measurement of water pressure sensing switch element that pressure gauge with electric contact 31 forms is highly sensitive; therefore can respond to fast the variation in water pressure in connecting tube; when sensing hydraulic pressure lower than transition point; pressure gauge with electric contact 31 will make protective circuit 30 in off state by auto-control; make high-pressure service pump 10 outages shut down, thereby high-pressure service pump 10 is effectively protected.Pressure gauge with electric contact 31 has the pointer of rotation and the switch contact formation that the pointer periphery arranges; pointer changes because the pressure of thoughts and feelings is different; thereby the different switch contacts connecting part from its periphery; thereby regulation and control protective circuit 20 is in disconnecting or closed state; thereby realize the conducting that is electrically connected between high-pressure service pump 20 and power supply and the conversion of off state, realize the excessive low water level protection of high-pressure service pump 10.
In the specific implementation, high-pressure service pump 10 systems also comprise oil pump 40, and oil pump 40 is connected and connects and composes the machine oil cool cycles unit that high-pressure service pump 10 is carried out to fuel feeding and cooling machine oil by pipeline with the engine oil pipeline in high-pressure service pump 10.Therefore, further scheme of the present utility model is: described protective circuit 30 also comprises for measuring the machine oil oil temperature inducting cell of high-pressure service pump 10 inner engine oil oil temperature signals, the make and break state of oil temperature inducting cell regulation and control protective circuit 30.Described oil temperature induction switch unit is that a thermoswitch 32 forms, and thermoswitch 32 and water pressure sensing switch element are for being electrically connected in series.By the oil temperature induction switch unit arranged, the oil temperature in high-pressure service pump 10 is responded in real time; like this when machine oil cool cycles unit generation oil starvation, obstruction and crankshaft-link rod such as kill at the situation; oil temperature induction switch unit just can be sensed high-pressure service pump 10 inner engine oil oil temperatures fast; when oil temperature surpasses setting value; oil temperature induction switch unit will make protective circuit 30 in off state by auto-control, protection high-pressure service pump 10.Thermoswitch can be a thermocouple, and thermocouple inserts high-pressure service pump 10 inside the machine oil oil temperature is carried out to measurement of inductance.
In a word, the protective system of the high-pressure service pump 10 that the utility model provides, can be effectively to high-pressure service pump 10 lacks of water and the high-pressure service pump 10 inner engine oil oil temperatures stoppage protection that cut off the power supply when too high, and protective system is highly sensitive.
Claims (4)
1. the protective system for high-pressure service pump; it is characterized in that: comprise high-pressure service pump (10) and water pump (20); the effluent pipe mouth of water pump (20) is connected and is connected by connecting tube (21) with the water inlet pipe mouth of high-pressure service pump (10); between high-pressure service pump (10) and power supply, by protective circuit (30), be electrically connected to; described protective circuit (30) comprises for measuring the water pressure sensing switch element of the interior hydraulic signal of connecting tube (21), the make and break state of the hydraulic signal regulation and control protective circuits (30) that water pressure sensing switch element basis records.
2. the protective system for high-pressure service pump as claimed in claim 1, is characterized in that: pressure gauge with electric contact (31) formation that described water pressure sensing switch element is the upper setting of connecting tube (21).
3. the protective system for high-pressure service pump as claimed in claim 1 or 2; it is characterized in that: described protective circuit (30) also comprises for measuring the oil temperature inducting cell of high-pressure service pump (10) inner engine oil oil temperature signal, the make and break state of the oil temperature signal regulation and control protective circuits (30) that oil temperature inducting cell basis records.
4. the protective system for high-pressure service pump as claimed in claim 3 is characterized in that: described oil temperature induction switch unit is that a thermoswitch (32) forms, thermoswitch (32) with the water pressure sensing switch element for being electrically connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203421677U CN203335367U (en) | 2013-06-14 | 2013-06-14 | Protection system for high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203421677U CN203335367U (en) | 2013-06-14 | 2013-06-14 | Protection system for high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335367U true CN203335367U (en) | 2013-12-11 |
Family
ID=49704044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203421677U Expired - Fee Related CN203335367U (en) | 2013-06-14 | 2013-06-14 | Protection system for high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438310A (en) * | 2016-08-31 | 2017-02-22 | 杰瑞石油天然气工程有限公司 | Method for preventing evacuation of plunger pump based on monitoring of output pressure |
-
2013
- 2013-06-14 CN CN2013203421677U patent/CN203335367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438310A (en) * | 2016-08-31 | 2017-02-22 | 杰瑞石油天然气工程有限公司 | Method for preventing evacuation of plunger pump based on monitoring of output pressure |
| CN106438310B (en) * | 2016-08-31 | 2018-02-09 | 杰瑞石油天然气工程有限公司 | A kind of method that plunger pump depletion is prevented based on monitoring output pressure |
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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: 20131211 Termination date: 20140614 |
|
| EXPY | Termination of patent right or utility model |