Closed self-circulation hydraulic pipeline flusher
The utility model relates to a kind of hydraulic pipeline flusher, especially relates to a kind of closed self-circulation hydraulic pipeline flusher that utilizes tubing pump to carry out circulation flushing.
In industrial equipment hydraulic system and the oil lubrication system construction, after system pipeline is installed, must be through oily circulation flushing, make it the inner-walls of duct cleanliness factor and reach the design code grade and just can come into operation.In hydraulic system and oil lubrication system construction, the oil-piping circulation flushing is one of important procedure.Its consuming time, effort, extremely technical staff's concern always.
The hydraulic pressure and the lubricating pipe inner chamber class of pollution of existing national standard " metallurgical machinery hydraulic pressure, lubricated and pneumatic plant engineering code for erection and inspection " GB 50387-2006 regulation, employing be the tertiary granule concentration grade code of " hydraulic drive oil-liquid-solid particle contamination Grade numbers " GB/T 14039-2002 standard.Promptly, carry out the standard of grain count grain divided rank by the particle size classification.In the actual cycle flushing, no matter adopt the filter of which kind of precision, all can not be through once circulation or circulation are several times just filtered contaminant particle clean.And need be through circulation many times, little by little with these contamination particle eliminations, minimizing, until reaching the regulation requirement.Therefore, we can say the process of circulation flushing, is the process to the circulation lube purification.And for the flushing process of open circulation flush loop, then be the process with the flushing lube purification of a fuel tank, this is a very long relatively cycle.So reducing the flushing oil amount is one of key point that improves flush efficiency.
Liquid flows in pipeline in theory, as long as its NR reaches 2300 (being in turbulent condition), just the contaminant particle that adheres on the inside pipe wall can be removed.And in fact, these are attached to the contaminant particle on the inner-walls of duct, with inner-walls of duct certain adhesion are arranged, and must just can remove under certain scouring force effect.So improving irrigation flow rate (the calculating irrigation flow rate of empirical value should reach 5～10m/s usually, even higher) also is one of key point that improves flush efficiency.
Adopt traditional open type oil circulation flushing mode to carry out oily circulation flushing, as shown in Figure 1, open type oil circulation flushing device includes oil-filled pumping plant, oil-filled pumping plant is in turn connected to form closed circuit by fuel tank, heater, oil pump, filter, valve and counterbalance valve, and the fuel feeding end of oil pump and the porch of filter are connected into each section conduit under fluid pressure in the closed circuit with interim tube connector respectively.In the circulation flushing process, after must gradually fluid circulating filtration in the fuel tank being reached regulation and requiring, pipe flushing in the loop could be reached the regulation requirement.As large diameter pipeline is carried out circulation flushing, must select the oil pump of big flow for use; And will guarantee under desirable flow velocity, to wash, along with the raising of flow velocity, linear loss is also increasing, and then need adopt the higher relatively oil pump of pressure.Also cause the circulation flushing pumping plant huge thus, fuel tank increases and also increases with oil mass.And when being used for washing the less relatively pipeline of caliber, because parameter influences such as caliber, flow velocity, linear loss and flushing pump operating pressures, a large amount of fluid are unloaded by the oil pump pressure limiting and directly overflow back fuel tank, cause flush efficiency low.
Therefore, be necessary existing open type oil circulation flushing mode is improved, the operating pressure that fuel tank is excessive, the flushing oil amount big in the hope of solving, must strengthen flushing pump improves technical problems such as irrigation flow rate.
Summary of the invention
The utility model provides a kind of oil, closed self-circulation hydraulic pipeline flusher that flush efficiency is high economized on for addressing the above problem.
The technical scheme that the utility model adopted is in order to reach the goal: closed self-circulation hydraulic pipeline flusher, it includes oil-filled pumping plant, oil-filled pumping plant is in turn connected to form closed circuit by fuel tank, oil pump, filter, valve and counterbalance valve, it is characterized in that: also include self-loopa flusher, flushing line, the self-loopa flusher is connected with fuel feeding end, the oil revolving end of oil-filled pumping plant respectively by fuel feed pump, oil return pipe, and fuel feed pump, oil return pipe are respectively arranged with valve; The self-loopa flusher also is connected to form closed circuit by interim connecting pipe and flushing line; Wherein, the self-loopa flusher mainly is made up of tubing pump, piping filter and valve, and flushing line comprises interim tube connector and each section conduit under fluid pressure, and tubing pump, interim tube connector, each section conduit under fluid pressure, piping filter, valve are in turn connected to form the loop.
Described tubing pump is connected with Pressure gauge, is provided with valve between tubing pump and Pressure gauge.
The high level of described flushing line is provided with high-order air bleeding valve.
Described piping filter is connected with air bleeding valve.
Described self-loopa flusher is provided with sample point, before sample point is arranged on the oil inlet end of piping filter, can wash the oil sample sampling by sample point.
The beneficial effects of the utility model are:
(1) because system is a closed-cycle system, has reduced fluid and contacted, do not needed to leave standstill for a long time fluid, thereby reduced the volume of fuel tank, cut down the circulation flushing oil mass greatly with outside air;
(2) taked airtight loop checking installation, the tubing pump of increase is supercharging gradually on circulation head pressure-based, improves irrigation flow rate gradually, until flow velocity and pump discharge balance, under the state that does not strengthen the flushing pump operating pressure, reach desirable irrigation flow rate, thereby improve flush efficiency greatly;
(3) the self-loopa flusher of Zeng Jiaing mainly is made up of tubing pump, filter and valve etc., and simple structure, light is easy to implement.
Description of drawings
Fig. 1 is traditional open type oil circulation flushing principle of device schematic diagram;
Fig. 2 is the utility model embodiment principle schematic;
Fig. 3 is the utility model embodiment modularization schematic diagram;
Description of symbols among the figure: 1-fuel tank, 2-heater, 4-oil pump, 7-oil station Pressure gauge, 9-fuel feed pump P, 10-conduit under fluid pressure, the interim nipple of 11-, 12-drain tap, the 13-conduit under fluid pressure, 14-oil return pipe T, 16-pressure tap, 18-filter, the 20-counterbalance valve, 23-tubing pump, 25-Pressure gauge, the 28-sample point, 29-piping filter, 30-drain tap, the oil-filled pumping plant of 100-, 200-self-loopa flusher, 300-flushing line;
All the other 3,5,6,8,15,17,19,20,21,22,24,26,27,31 are valve.
The specific embodiment
In conjunction with the accompanying drawings utility model is described further with specific embodiment below:
Because fluid is got back to fuel tank 1 through oil return pipe in the traditional open type oil circle irrigation system, fluid is open flowing, and contacts with atmosphere easily and produces a large amount of bubbles.Guarantee oil pump 4 operate as normal, must eliminate these bubbles, and will eliminate these bubbles, must keep fluid to leave standstill a period of time again and have certain depth with the maintenance liquid level.Like this, adopt the circulation flushing pumping plant of large-flow high-pressure pump, its fuel tank 1 is inevitable huge.As shown in Figure 2, a kind of implemented according to the invention closed self-circulation hydraulic pipeline flusher, it includes oil-filled pumping plant 100, self-loopa flusher 200 and 300 3 parts of flushing line, in order to reduce the volume of oil-filled pumping plant 100 fuel tanks 1, oil-filled pumping plant 100, self-loopa flusher 200 and flushing line 300 are connected to form closed-cycle system.Self-loopa flusher 200 is connected with fuel feeding end, the oil revolving end of oil-filled pumping plant 100 respectively by fuel feed pump P9, oil return pipe T14, fuel feed pump P9, oil return pipe T14 are respectively arranged with valve 8, valve 15, also by interim tube connector 11 conduit under fluid pressure (10,13) that each section is to be washed in the flushing line 300 are together in series and are connected to form closed circuit with self-loopa flusher 200.
Oil-filled pumping plant 100 is in turn connected to form closed circuit by fuel tank 1, oil pump 4, filter 18, valve (3,5,17,19) and counterbalance valve 20, fuel tank 1 bottom position also is provided with the oil heating of heater 2 oil dropping apparatuses 1 inside, prevents to stablize low and influences its fluid ability.Oil pump 4 can adopt the oil pump that flow is less, pressure is high slightly, the flow of oil pump 4 about 300L/min, pressure is about 2.5MPa.Fuel tank 1 volume does not need too big, general 4m
3Be sufficient for sb.'s need, filter 18 should with oil pump 4 flow matches.Oil-filled pumping plant 100 is provided with counterbalance valve 20 to be play a part to guarantee to be full of fluid and emptying air in the loop, in oil-filled pumping plant 100 loops pressure tap 16 is set also and is used to detect oil pressure.Oil-filled pumping plant 100 can be assembled on the base plate, forms a separate component.Be connected with self-loopa flusher 200 with oil return pipe T14 by fuel feed pump P9 during use, constitute the oil supply system of closed loop.Oil-filled pumping plant 100 major functions are oil-filled to the circulation flushing loop, before self-loopa flusher 200 drops into circulation flushing, and valve-off 8 and valve 15, open valve 5, start oil pump 4, make oil pump 4, filter 18 and fuel tank 1 form closed circuit, the fluid in the fuel tank 1 is carried out circulating filtration.Oil-filled pumping plant 100 also can independently be used as open oily circulation flushing pumping plant, and the small-bore pipeline flush loop is carried out circulation flushing.
Self-loopa flusher 200 mainly is made up of tubing pump 23, piping filter 29, valve (21,22,24,26,27,31) and drain tap 30 etc.Tubing pump 23 can adopt the oil pump that pressure is less, flow is big slightly, the pressure of tubing pump 23 satisfy flushing start require, flow satisfies that maximum pipeline irrigation flow rate requires to get final product in the flush loop.Piping filter 29 should with tubing pump 23 flow matches, preferably bigger than normal.Self-loopa flusher 200 can be assembled on the base plate, forms an autonomous block.During use, be connected with oil-filled pumping plant 100 with oil return pipe T14 by fuel feed pump P9, be connected with the conduit under fluid pressure (10,13) that needs flushing by interim connection short tube 11, the airtight self-circulation type conduit under fluid pressure circle irrigation system of common formation, tubing pump 23 is for circulation flushing provides kinetic energy, and the fluid in 29 pairs of flushing processes of piping filter purifies.
Flushing line 300 is mainly by conduit under fluid pressure to be washed (10,13), interim tube connector 11 and be used for the formations such as contact, adapter, drain tap 12 of exhaust.Each section conduit under fluid pressure (10,13) utilizes interim tube connector 11 such as hard tube or flexible pipe that it is composed in series flushing line 300, it is the agent object of circulation flushing, high level at flushing line 300 is provided with the exhaust apparatus that is made of contact, adapter, drain tap 12, in order to get rid of the air in the flush loop.
The course of work of the present utility model is: Open valve (24,27), valve-off (21,22,31) and air bleeding valve (12,30), the valve 26 of closing presure table 25; By fuel feed pump P9 and oil return pipe T14, connect oil-filled pumping plant 100; Open valve (8,15,21,31) starts oil-filled pumping plant 100 oil pumps 4, and is oil-filled to flush loop by the oil-filled loop that fuel feed pump P9 and oil return pipe T14 connect; In the oil-filled process, open air bleeding valve (12,30) respectively and carry out exhaust and exhaust observation, and opening pressure table 25 valve 26 carries out pressure monitoring; After confirming in the loop that air is got rid of and had certain pressure, valve-off 31, flush loop is pressurizeed, carry out the pressure inspection, confirm to adjust the oil filling pump charge oil pressure after the loop does not have leakage, show valve-off 21 under the minute-pressure states, Open valve 22 at Pressure gauge 25, start tubing pump 23, make system enter airtight self-loopa flushing state.By sample point 28, wash oil sample sampling or insert fluid on-line monitoring instrument and carry out the monitoring of fluid cleanliness factor.Wash qualified after, open high some air bleeding valve 12 and carry out oil extraction at low dot location.Flush loop begins oil-filled the time, should carry out the loop lysimetric test and is handled; After oil-filled finishing, the pressurization of reply flush loop, and carry out the pressure test inspection, guarantee that circulation flushing can carry out under air-tight state.Flush loop is oil-filled finish after, can make oil-filled pumping plant 100 enter the duty of station internal circulation filtering fuel tank fluid; Also can remove fuel feed pump P9 and oil return pipe T14 with oil-filled pumping plant 100, transfer oil-filled pumping plant 100 oil-filled to other flush loop.
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of this practicality certainly with this, and therefore the equivalence of being done according to the utility model claim changes, and still belongs to protection domain of the present utility model.