CN212458881U - Water supply system of hydraulic dynamometer - Google Patents
Water supply system of hydraulic dynamometer Download PDFInfo
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- CN212458881U CN212458881U CN202021509969.9U CN202021509969U CN212458881U CN 212458881 U CN212458881 U CN 212458881U CN 202021509969 U CN202021509969 U CN 202021509969U CN 212458881 U CN212458881 U CN 212458881U
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Abstract
The utility model discloses a water supply system of hydraulic dynamometer, which belongs to the field of marine diesel engines, and can ensure stable water inlet pressure and meet the temperature requirement when a plurality of hydraulic dynamometers are operated in parallel by using one set of water supply system, wherein the system comprises a pump body, a regulating valve connected with the outlet of the pump body and a plurality of prying blocks communicated with the pump body, and each prying block can be communicated with a tested diesel engine; each prying block is internally provided with a water flow passage, and the water flow passage in each prying block comprises a main path for communicating with a diesel engine and a branch path capable of directly draining water; wherein, the outlet pipeline of the pump body where the regulating valve is arranged is used for unloading.
Description
Technical Field
The utility model belongs to marine diesel field, it is specific, relate to a water supply system of hydraulic dynamometer.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The bench test system for the marine low-speed diesel engine is a key support system for ensuring product qualification verification and production and manufacturing of a host factory. The marine low-speed diesel engine needs to be subjected to bench test before leaving a factory, and corresponding performance indexes need to meet design requirements and are approved by classification society and shipowners. The bench test stage is a series of performance tests before the low-speed diesel engine leaves a factory, and comprises series verification tests of basic functions, oil consumption, lubrication, cooling, emission, power output characteristics and the like of the diesel engine.
The hydraulic dynamometer is a device for providing the output power of a diesel engine, which converts mechanical energy emitted by the diesel engine into heat energy by using water as a medium, and measures relevant operating parameters of the diesel engine in the process. In order to ensure the stability and reliability of the measurement, a reliable water source with stable pressure must be provided for the hydraulic dynamometer.
The inventor finds that when a plurality of diesel engines are tested simultaneously, a set of water supply system of the hydraulic dynamometer is independently arranged for each diesel engine, the stable operation of the water inlet pressure can be guaranteed certainly, but the distance between a water cooling tower and a diesel engine rack test ground is far under the general condition, the cost of the system arranged for each diesel engine is difficult to control, the related space is large, and the arrangement is difficult to realize. When a set of hydraulic dynamometer water inlet supply system is used for supplying a plurality of diesel engines with different powers to test simultaneously, the problems can be effectively solved, however, the power of the diesel engines is different, the water inlet demand of the corresponding dynamometer is also different, and the load of the diesel engines is also changed frequently in the test run process (or other diesel engines are still in operation, wherein a plurality of diesel engines stop suddenly and the like). The above all can cause the intake pressure of hydraulic dynamometer unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a water supply system of hydraulic dynamometer, when many hydraulic dynamometers use one set of water supply system to connect in parallel the operation, can guarantee that pressure stability, temperature meet the demands of intaking.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
the technical scheme of the utility model provides a water supply system of a hydraulic dynamometer, which comprises a pump body, a regulating valve connected with the outlet of the pump body and a plurality of prying blocks communicated with the pump body, wherein each prying block can be communicated with a tested diesel engine; each prying block is internally provided with a water flow passage, and the water flow passage in each prying block comprises a main path for communicating with a diesel engine and a branch path capable of directly draining water; wherein, the outlet pipeline of the pump body where the regulating valve is arranged is used for unloading.
Above-mentioned the utility model discloses a technical scheme's beneficial effect as follows:
1) the utility model discloses in, the governing valve of hydraulic dynamometer circulating water pump export configuration can effective control outlet pressure guarantee trunk line pressure stability to a treater of governing valve independent connection, this governing valve is adjusted according to the sensor on the main line of arranging to the treater, can guarantee the accuracy nature and the promptness of regulation.
2) The utility model discloses in, set up the stabilivolt pump and adjust the treater of stabilivolt pump alone in the sled piece, the pressure of main road can be stabilized to the stabilivolt pump, guarantees when many hydraulic dynamometer machines use one set of water supply system when the operation that connects in parallel, and hydraulic dynamometer machine pressure of intaking is stable.
3) The utility model discloses in, the treater in the sled piece can also be according to the pressure of branch road, further control surge damping pump, and sled piece flexible operation makes things convenient for many quick-witted changes to utilize, saves space reduce cost.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a system diagram of the present disclosure in accordance with one or more embodiments.
In the figure: 11. the system comprises a first circulating water pump, 12, a second circulating water pump, 2, a cold water tower inlet, 3, a cold water tower, 4, a hot water tank, 5, a first diesel engine, 51, a first pry block, 511, a first processor, 512, a first pressure stabilizing pump, 6, a second diesel engine, 61, a second pry block, 611, a second processor, 612, a second pressure stabilizing pump, 7, a third diesel engine, 71, a third pry block, 711, a third processor, 712, a third pressure stabilizing pump and 8, wherein the processors are independently arranged.
The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and a person skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations;
the utility model discloses in, hydraulic dynamometer: a device for absorbing and transmitting the output power of the power machine by using the friction torque formed by the water to the rotating rotor;
the principle of the water cooling tower is that the air blown in and the water sprinkled from the air form convection to remove heat source, and part of water evaporates in the convection to take away the corresponding latent heat of evaporation, thereby reducing the temperature of the water.
Just as the background art introduces, to the not enough that prior art exists, the utility model aims at providing a water supply system for hydraulic dynamometer, when many hydraulic dynamometers use one set of water supply system to connect in parallel the operation, can guarantee that pressure stability, temperature meet the demands of intaking.
Example 1
The utility model discloses an among the typical implementation, as shown in fig. 1, example 1 discloses a water supply system for hydraulic dynamometer, including cooling tower, hot-water tank 4, circulating water pump, air-vent valve, the test part of connecting the diesel engine, delivery pump, wherein, cooling tower, circulating water pump, test part, 4 order head and the tail intercommunications in hot-water tank form first circulation pipeline, and wherein, cooling tower, circulating water pump, air-vent valve, 4 order head and the tail intercommunications in hot-water tank form second circulation pipeline, and cooling tower still communicates the delivery pump.
The water cooling tower and the hot water tank 4 both use the existing components, and the specific structure thereof is not described in detail.
Liquid level switches or liquid level sensors are arranged in the water cooling tower and the hot water tank 4 and are connected with a pressure regulating valve of the water cooling tower and a pressure regulating valve of the hot water tank 4, so that safe operation is guaranteed. If the liquid level of the hot water pool is high, the water is discharged to the water cooling tower through the pump, the water cooling tower is pumped to the hot water pool when the liquid level of the water cooling tower is high, and the water cooling tower is provided with an overflow port to discharge the water.
The test part of connecting the diesel engine is the main line, and pressure sensor is equipped with to the main line, and pressure sensor feeds back the pressure signal who surveys to the controller, and the opening of pressure regulating valve behind the control circulating pump is released unnecessary water to hot-water pond 4 through second circulation pipeline to guarantee the pressure stability of main line.
Still including removing the steady voltage sled piece, in this embodiment, the main pipeline is through removing the diesel engine that steady voltage sled piece intercommunication needs the test, and every removes steady voltage sled piece and all communicates a diesel engine.
The movable pressure-stabilizing prying blocks are all communicated with the hot water pool 4.
Regarding the movable pressure-stabilizing pry blocks, the present embodiment includes three movable pressure-stabilizing pry blocks, which are respectively a first pry block 51, a second pry block 61 and a third pry block 71, taking the first pry block 51 as an example, the first pry block includes a first pressure-stabilizing pump 512, a first isolation valve, a second isolation valve, a first check valve, a first processor 511, a first pressure-regulating valve, a first pressure valve, a first safety valve, a third isolation valve, a fourth isolation valve, a first pneumatic regulating valve, a first branch pipeline and a first flow meter, a first isolation valve is arranged on a water inlet pipe of the first pressure-stabilizing pump 512, a second isolation valve and a first check valve are continuously arranged on a water outlet pipe, and the first pressure-stabilizing pump 512 is further connected with the first processor 511; the water inlet pipe of the first pressure stabilizing pump 512 is also communicated with a first pressure regulating valve; the water outlet pipe of the first pressure stabilizing pump 512 is also provided with a first pressure valve and a first safety valve, and the first safety valve is also connected with the first processor 511; the pipe section at the rear side of the first safety valve is used for being communicated with a first diesel engine 5 to be tested, the pipe section between the first pressure valve and the first check valve is further communicated with a first branch pipeline, the first branch pipeline is communicated with the hot water pool 4, a third isolation valve, a first pneumatic regulating valve and a fourth isolation valve are sequentially arranged on the first branch pipeline, the first pneumatic regulating valve is further connected with a first flowmeter, and the first flowmeter is connected with the first processor 511.
It is understood that, in the present embodiment, a pneumatic regulator valve is used as the main regulator valve.
The second pry block 61 includes a second pressure-stabilizing pump 612, a fifth isolation valve, a sixth isolation valve, a second check valve, a second processor 611, a second pressure regulating valve, a second pressure valve, a second safety valve, a seventh isolation valve, an eighth isolation valve, a second pneumatic regulating valve, a second branch pipe, and a second flow meter, and the connection relationship thereof refers to the first pry block 51, which is not described herein again.
The third pry block 71 includes a third pressure maintaining pump 712, a ninth isolation valve, a tenth isolation valve, a third check valve, a third processor 711, a third pressure regulating valve, a third pressure valve, a third safety valve, an eleventh isolation valve, a twelfth isolation valve, a third pneumatic regulating valve, a third branch pipe and a third flow meter, and the connection relationship thereof refers to the first pry block 51, which is not described herein again.
The second diesel engine 6 is connected to the second skid block 61, and the third diesel engine 7 is connected to the third skid block 71.
In addition, in order to improve water velocity and improve test power, circulating water pump is equipped with two side by side, and the pipeline of connecting between cold water tower 3 to the main line divide into two strands, denominates 11 pipelines of first circulating water pump and 12 pipelines of second circulating water pump respectively, and the front end of 11 pipelines of first circulating water pump and 12 pipelines of second circulating water pump all communicates cold water tower 3, and the rear end of 11 pipelines of first circulating water pump and 12 pipelines of second circulating water pump all communicates the main line.
The first circulating water pump 11 is arranged on the first circulating water pump 11 pipeline, and the second circulating water pump 12 is arranged on the second circulating water pump 12 pipeline.
A thirteenth isolating valve and a fourth pressure regulating valve are sequentially arranged on the pipeline on the front side of the first circulating water pump 11, and a fourth pressure valve, a fourteenth isolating valve and a fourth check valve are sequentially arranged on the pipeline on the rear side; a fifteenth isolation valve and a fifth pressure regulating valve are sequentially arranged on the pipeline on the front side of the second circulating water pump 12, and a fifth pressure valve, a sixteenth isolation valve and a fifth check valve are sequentially arranged on the pipeline on the rear side.
In addition, a tee bend is arranged between the thirteenth isolating valve and the fourth pressure regulating valve, and a tee bend is arranged between the fifteenth isolating valve and the fifth pressure regulating valve.
A water circulating pump is also arranged on the pipeline between the water cooling tower and the hot water tank 4, the water circulating pump is named as a third water circulating pump in the embodiment, a seventeenth isolating valve and a sixth pressure regulating valve are sequentially arranged on the pipeline on the front side of the third water circulating pump, and a sixth pressure valve, an eighteenth isolating valve and a sixth check valve are sequentially arranged on the pipeline on the rear side.
In addition, a pneumatic regulating valve is also arranged on the second circulating pipeline, and the pneumatic regulating valve on the second circulating pipeline is also connected with an independently arranged processor 8.
By integrating the design of the valves, in the embodiment, the prying block can independently realize the effect of separating the circulating water, the circulating water is divided into one path of the hot water tank 4 directly merged into and one path of the diesel engine entering into after passing through the pressure stabilizing pump, and the flow ratio between the two paths can be flexibly adjusted according to the adjustment of the processor, so that the accurate test is facilitated.
The specific operation process of the embodiment is that tap water can supplement water for the water cooling tower through the production water supply pipeline;
the circulating water pump discharges water from the water cooling tower to a main pipeline of a water supply pipeline, the main pipeline is provided with a pressure sensor, the pressure sensor feeds a detected pressure signal back to the control system to control the opening of a regulating valve behind the pressure stabilizing pump, and excess water is discharged to the hot water pool 4, so that the pressure of the main pipeline is ensured to be stable;
water of the main pipeline is distributed to each diesel engine through the movable pressure stabilizing pry block, and when a plurality of hydraulic dynamometer machines operate simultaneously, the corresponding water inflow is unstable due to different diesel engine powers and frequent change of load points. The main pipeline water is stabilized through a pressure stabilizing pump, and the opening of the regulating valve is controlled through a feedback signal of a sensor behind the pressure stabilizing pump to ensure that the water inlet pressure of the dynamometer is stable;
when one or a plurality of sudden diesel engines stop, the pressure of the main pipeline rises suddenly, and at the moment, the processor opens the regulating valve on the second circulating pipeline to discharge the water pressure to the backwater main pipeline, so that the pressure of the main pipeline is ensured to be stable;
the backwater of the hydraulic dynamometer enters the hot water tank 4 through a backwater main pipeline and is cooled by a water cooling tower to complete the work cycle.
Example 2
The utility model discloses an among the typical implementation, embodiment 2 still discloses a water supply method for hydraulic dynamometer, uses as in embodiment 1 hydraulic dynamometer water supply system, includes following step:
the circulating water pump discharges water from the water cooling tower to a main pipeline of the water supply pipeline;
the water of the main pipeline is distributed to each diesel engine through a movable pressure stabilizing pry block, when a plurality of hydraulic dynamometers run simultaneously, the water of the main pipeline is stabilized through a pressure stabilizing pump, and the opening of a regulating valve is controlled through a feedback signal of a sensor behind the pressure stabilizing pump to ensure that the water inlet pressure of the dynamometer is stable;
when one or a plurality of sudden diesel engines stop, the processor opens the regulating valve on the second circulating pipeline to discharge the water pressure to the water return main pipeline, so as to ensure the pressure of the main pipeline to be stable;
the backwater of the hydraulic dynamometer enters the hot water tank 4 through a backwater main pipeline and is cooled by a water cooling tower to complete the work cycle.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A water supply system of a hydraulic dynamometer is characterized by comprising a pump body, an adjusting valve connected to an outlet of the pump body and a plurality of prying blocks communicated with the pump body, wherein each prying block can be communicated with a tested diesel engine; each prying block is internally provided with a water flow passage, and the water flow passage in each prying block comprises a main path for communicating with a diesel engine and a branch path capable of directly draining water; wherein, the outlet pipeline of the pump body where the regulating valve is arranged is used for unloading.
2. The water supply system of claim 1, further comprising a cooling tower and a hot water tank, wherein the cooling tower is connected to a water source, the hot water tank is connected to the cooling tower and the plurality of skids, and the hot water tank is further connected to the pump body.
3. The water supply system for hydraulic dynamometer of claim 2, wherein the pipeline of the hot water tank connected to the pump body is provided with a regulating valve, and the regulating valve is connected to the processor.
4. The water supply system for hydraulic dynamometer of claim 2, wherein the outlet of the tested diesel engine is connected to the hot water tank.
5. The water supply system of hydraulic dynamometer as claimed in claim 1, wherein the pump body includes a plurality of water outlets, and the water outlets of the plurality of pump bodies are all connected to a main pipeline.
6. The water supply system of hydraulic dynamometer of claim 5 wherein said main pipeline connects to a plurality of said skids.
7. The water supply system of hydraulic dynamometer of claim 1, wherein the pry block includes a steady flow pump, an outlet of the steady flow pump is divided into a main path for communicating with the diesel engine and a branch path for direct drainage; the processor is also connected to a processor located within the pry block.
8. The water supply system of hydraulic dynamometer of claim 7 wherein the processor is further coupled to a flow meter to which the adjustment valve on the branch is coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021509969.9U CN212458881U (en) | 2020-07-27 | 2020-07-27 | Water supply system of hydraulic dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021509969.9U CN212458881U (en) | 2020-07-27 | 2020-07-27 | Water supply system of hydraulic dynamometer |
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| Publication Number | Publication Date |
|---|---|
| CN212458881U true CN212458881U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021509969.9U Active CN212458881U (en) | 2020-07-27 | 2020-07-27 | Water supply system of hydraulic dynamometer |
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|---|---|
| CN (1) | CN212458881U (en) |
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- 2020-07-27 CN CN202021509969.9U patent/CN212458881U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee after: China Shipbuilding Industry Corporation Diesel ENGINE Co.,Ltd. Address before: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee before: CHINA SHIPBUILDING INDUSTRY CORPORATION DIESEL ENGINE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |