CN216811995U - Universal calibration device for nuclear power plant diesel injector - Google Patents
Universal calibration device for nuclear power plant diesel injector Download PDFInfo
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- CN216811995U CN216811995U CN202122355868.1U CN202122355868U CN216811995U CN 216811995 U CN216811995 U CN 216811995U CN 202122355868 U CN202122355868 U CN 202122355868U CN 216811995 U CN216811995 U CN 216811995U
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Abstract
The utility model particularly relates to a universal calibration device for a nuclear power plant diesel injector, which comprises a transverse pipe, an oil conveying pipe, a hand-operated pump, an oil tank, an oil pump base, a pressure gauge and a pressure maintaining switch, wherein the oil conveying pipe is connected with the oil tank; the two ends of the transverse pipe are of closed structures, and the interior of the transverse pipe is of a hollow structure; a plurality of adapters are arranged on one side of the transverse pipe, and each adapter is communicated with the transverse pipe; the other side of the transverse pipe is communicated with one end of an oil conveying pipe; the other end of the oil delivery pipe is connected with the pressure maintaining switch, the hand pump is respectively connected with the oil tank and the oil delivery pipe, and the pressure gauge is connected with the upstream oil delivery pipe. The universal calibration device for the nuclear power plant diesel engine oil injector can be suitable for diesel engine oil injectors of different models, so that the calibration work is more convenient and faster.
Description
Technical Field
The utility model relates to an emergency diesel engine system of a nuclear power plant, in particular to a universal calibration device for a diesel engine fuel injector of the nuclear power plant.
Background
Referring to fig. 1, the injector is a precision device with very high processing precision, and is required to have a large dynamic flow range, strong anti-clogging and anti-pollution capabilities and a good atomization effect. In the running process of the diesel engine, the fuel injector atomizes fuel after receiving a fuel injection signal and distributes the fuel in the combustion chamber to be mixed with air for combustion.
The diesel engine can generate a large amount of heat in the running process and is influenced by high temperature, substances such as resin, gum olefin and the like contained in the diesel oil can be gradually attached to a tiny spray hole at the tail end of the oil sprayer to cause the blockage of the oil sprayer, the normal passing and atomization of the diesel oil are influenced, in addition, the water contained in the diesel oil easily causes the corrosion of the oil sprayer needle to cause the blockage, and the faults of incapability of starting or difficulty in starting the diesel engine, power reduction, slow acceleration, unstable idling and the like are caused.
Every domestic nuclear power plant is equipped with many different models's emergent diesel engine group, and the diesel engine group has the maintenance project every circulation, wherein just including the inspection to the sprayer, for example, Qin mountain second phase has 2 big diesel engines of different models and 8 little diesel engines of different models, all needs to prepare the calibration equipment of different models to the sprayer calibration work of different models, and sprayer calibration equipment can not general has brought huge trouble for calibration work.
SUMMERY OF THE UTILITY MODEL
On the basis, the general calibration device for the nuclear power plant diesel engine oil injector is necessary to solve the problem that the existing nuclear power plant diesel engine oil injector cannot be used universally, and can be suitable for diesel engine oil injectors of different models, so that the calibration work is more convenient and faster.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a universal calibration device for a nuclear power plant diesel injector comprises a transverse pipe, an oil conveying pipe, a hand-operated pump, an oil tank, an oil pump base, a pressure gauge and a pressure maintaining switch; the two ends of the transverse pipe are of closed structures, and the interior of the transverse pipe is of a hollow structure; a plurality of adapters are arranged on one side of the transverse pipe, and each adapter is communicated with the transverse pipe; the other side of the transverse pipe is communicated with one end of an oil conveying pipe; the defeated oil pipe other end is connected with the pressurize switch, hand pump respectively with oil tank and defeated oil pipe line connection, the manometer is defeated oil pipe connection in upper reaches.
The working principle is as follows: during calibration, a proper adapter is selected according to the type of the oil sprayer to install the oil sprayer on a calibration device, oil in the oil tank is pumped into the oil sprayer through a hand pump, and meanwhile, a pressure gauge is observed to record the oil spraying pressure of the oil sprayer.
Further, the hand-operated pump comprises a hand-operated lever and an oil pump; the upper side of the oil pump base is connected with an oil pump, and the oil pump is respectively connected with an oil tank and an oil conveying pipeline; the rocker is connected with the bearing of the oil pump base, and the rocker inside the oil pump base is connected with the oil pump drive.
Further, each adapter is in threaded connection with the transverse pipe.
Further, the oil sprayers of different models are in threaded connection with the corresponding adapters.
Furthermore, the horizontal pipe is connected with the oil conveying pipe in a welding mode.
Further, the oil conveying pipe is connected with the pressure maintaining switch in a welding mode.
Further, the manometer and defeated oil pipe threaded connection of upper reaches.
Further, the oil pump is welded and connected to the upper side of the oil pump base.
Further, the oil pump is respectively in threaded connection with the oil tank and the oil conveying pipeline.
The utility model has the beneficial technical effects that:
the universal calibration device for the nuclear power plant diesel engine oil injector can be used for calibrating the oil injection pressure of the diesel engine oil injector, and corresponding adapters are selected according to the type of the oil injector for matching and pressing, so that the universal calibration device for the oil injector is realized, the pressing work is more convenient and faster, and the production cost is saved.
Drawings
FIG. 1 is a schematic diagram of a conventional diesel injector;
FIG. 2 is a schematic structural diagram of a general calibration device for a nuclear power plant diesel injector.
In the figure, 1, an oil inlet; 2. a compensating washer; 3. a spring seat; 4. a pressure spring; 5. pushing up the bearing; 6. an intermediate pad; 7. a joint pin; 8. a joint pin; 9. a clamping sleeve; 10. an oil jet; 11. an adapter; 12. an oil injector; 13. an oil delivery pipe; 14. an oil pump; 15. an oil tank; 16. an oil pump base; 17. a hand lever; 18. a pressure gauge; 19. and (6) a pressure maintaining switch.
Detailed Description
In the description of the present invention, it is to be understood that the terms "left end", "right end", "above", "below", "outside", "inside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The utility model is described in further detail below with reference to the figures and the detailed description.
Referring to fig. 2, the utility model provides a general calibration device for a nuclear power plant diesel injector, which comprises a transverse pipe, an oil conveying pipe 13, a hand pump, an oil tank 15, an oil pump base 16, a pressure gauge 18 and a pressure maintaining switch 19; two ends of the transverse pipe are of closed structures, and the interior of the transverse pipe is of a hollow structure; a plurality of adapters 11 are arranged on one side of the transverse pipe, and each adapter 11 is communicated with the transverse pipe; the other side of the transverse pipe is communicated with one end of an oil delivery pipe 13; the other end of the oil delivery pipe 13 is connected with a pressure maintaining switch 19, the hand pump is respectively connected with the oil tank 15 and the oil delivery pipe 13 through pipelines, and after oil with certain pressure is pumped into the oil injector 12 through the hand pump, the pressure maintaining switch 19 is immediately closed to prevent high-pressure oil from flowing back, so that the pressure in the oil injector 12 is kept stable; the pressure gauge 18 is connected to the upstream delivery pipe 13.
Further, the hand pump comprises a hand lever 17 and an oil pump 14; the upper side of the oil pump base 16 is connected with an oil pump 14; the oil pump 14 is respectively connected with an oil tank 15 and an oil delivery pipe 13 through pipelines; the utility model discloses a fuel pump, including oil tank 15, rocker 17 and oil pump base 16 bearing connection, the inside rocker 17 and the drive of oil pump base 16 are connected, rocker 17 passes through mechanisms such as axle, rocking arm at the inside drive oil pump 14 of oil pump base 16, squeezes into low reaches defeated oil pipe 13 with the oil in the oil tank 15.
Further, each adapter 11 is in threaded connection with the transverse pipe; the fuel injectors 12 of different models are in threaded connection with the corresponding adapters 11; the horizontal pipe is connected with the oil delivery pipe 13 in a welding mode.
Further, the oil delivery pipe 13 is connected with a pressure maintaining switch 19 in a welding mode.
Further, the pressure gauge 18 is in threaded connection with the upstream oil delivery pipe 13.
Further, the oil pump 14 is welded and connected to the upper side of the oil pump base 16.
Further, the oil pump 14 is respectively in threaded connection with the oil tank 15 and the oil delivery pipe 13.
When the universal calibration device for the nuclear power plant diesel engine oil injector is used for calibrating the nuclear power plant diesel engine oil injector, the calibration device comprises the following steps:
1. selecting a proper adapter 11 according to the type of the fuel injector 12, installing the fuel injector 12 on the universal calibration device of the diesel injector of the nuclear power plant through the adapter 11, and plugging other adapters 11 by plugs.
2. The rocker lever 17 is rocked to drive the diesel fuel in the fuel tank 15 through the oil pump 14 into the fuel injector 12.
3. And (5) continuing to shake the hand rocker 17, slowly increasing the oil pressure to the checking pressure, screwing the pressure maintaining switch 19, and observing whether the oil injector 12 leaks oil.
4. And (3) opening a pressure maintaining switch 19, continuing to shake the hand rocker 17, slowly increasing the oil pressure, observing the reading of a pressure gauge 18 when the oil sprayer 12 sprays oil, and comparing the reading with a standard value.
The universal calibration device for the nuclear power plant diesel engine oil injector can select corresponding adapters to perform calibration according to different types of oil injectors, and can perform calibration work on a plurality of oil injectors at the same time.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A universal calibration device for a nuclear power plant diesel injector is characterized by comprising a transverse pipe, an oil conveying pipe (13), a hand-operated pump, an oil tank (15), an oil pump base (16), a pressure gauge (18) and a pressure maintaining switch (19); two ends of the transverse pipe are of closed structures, and the interior of the transverse pipe is of a hollow structure; violently be equipped with a plurality of adapter (11) on one side of pipe, every adapter (11) and violently manage through connection, violently manage the opposite side and defeated oil pipe (13) one end through connection, defeated oil pipe (13) other end is connected with pressurize switch (19), hand pump respectively with oil tank (15) and defeated oil pipe (13) pipe connection, manometer (18) are connected with defeated oil pipe (13) in upper reaches.
2. The universal calibration device for nuclear power plant diesel injectors as set forth in claim 1, characterized in that the hand pump comprises a hand lever (17) and an oil pump (14); the upper side of the oil pump base (16) is connected with an oil pump (14), and the oil pump (14) is respectively connected with an oil tank (15) and an oil delivery pipe (13) through pipelines; the hand rocker (17) is connected with the bearing of the oil pump base (16), and the hand rocker (17) inside the oil pump base (16) is in driving connection with the oil pump (14).
3. The universal calibration device for nuclear power plant diesel injectors as defined in claim 1, characterized in that each adapter (11) is in threaded connection with a cross tube.
4. The universal calibration device for nuclear power plant diesel injectors as defined in claim 1, characterized in that injectors (12) of different models are in threaded connection with corresponding adapters (11).
5. The universal calibration device for the nuclear power plant diesel injector according to claim 1, characterized in that the transverse pipe is welded to the oil delivery pipe (13).
6. The universal calibration device for the nuclear power plant diesel injector according to claim 1, characterized in that the oil delivery pipe (13) is welded to the pressure maintaining switch (19).
7. The universal calibration device for the nuclear power plant diesel injector according to claim 1, characterized in that the pressure gauge (18) is in threaded connection with the upstream oil delivery pipe (13).
8. The universal calibration device for the nuclear power plant diesel injector according to claim 2, characterized in that an oil pump (14) is welded to the upper side of the oil pump base (16).
9. The universal calibration device for the nuclear power plant diesel injector according to claim 2, characterized in that the oil pump (14) is respectively in threaded connection with the oil tank (15) and the oil delivery pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122355868.1U CN216811995U (en) | 2021-09-28 | 2021-09-28 | Universal calibration device for nuclear power plant diesel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122355868.1U CN216811995U (en) | 2021-09-28 | 2021-09-28 | Universal calibration device for nuclear power plant diesel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811995U true CN216811995U (en) | 2022-06-24 |
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ID=82040215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122355868.1U Active CN216811995U (en) | 2021-09-28 | 2021-09-28 | Universal calibration device for nuclear power plant diesel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216811995U (en) |
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2021
- 2021-09-28 CN CN202122355868.1U patent/CN216811995U/en active Active
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