CN2134641Y - Circulating grout automatic recorder using one flowmeter - Google Patents

Abstract

The utility model relates to a circulating grouting automatic recorder using one flowmeter, which is mainly composed of an agitating barrel, a flowmeter, a pressure gauge, a computer, a printer, a grout return tee, a grout return deflector, a pressure control valve, etc. which are connected into two circulation grout paths. Namely, one large circulation grout path uses the flowmeter as the main body, and one small circulation grout path uses the pressure gauge as the main body. The corresponding flow and pressure value is converted into electrical signal which is sent to the computer for carrying out data processing, and finally the operating parameters such as the actual flow rate, the pressure, etc. are printed out automatically. The utility model has the characteristics of reasonable structure, reliable connection, good moisture resistance, convenient operation, etc.

Description

Circulating grout automatic recorder using one flowmeter

The utility model belongs to the improvement of grouting automatic recorder, and or rather, it is a cycle grouting self-recording device of only using a flowmeter.

The technological process of foundation grouting at present has two kinds: a kind of is pure pressure type, and a kind of is circulating.The grouting of pure pressure type is recorded as external employing, and essential record grouting pressure and two parameters of grouting flow, as the grouting automatic recorder of the CFP1011 type of the FR-120-2FC type of Japanese bright clear Co., Ltd. of producing use already and Sweden.These two kinds of devices, simple in structure, but it is loaded down with trivial details to array data.And for example in May, 1991 U.S. " civil engineering work " published article shows: united states bureau of reclamation is since nineteen eighty-two, and just grouting realizes electronic monitoring to the dam foundation, and can also write down concentration of slurry, has become three parameter recorders.This system, monitoring is accurate, but involves great expense.Because grouting process mode difference, external registering instrument can not directly apply in the domestic grouting construction.At present, China all carries out as basic components with two flowmeters grouting record, is that negative appears in detection difference sometimes with the problem of two flowmeter maximums, has a strong impact on the authenticity of grouting, adds that cost is also high with two flowmeters.To this, domestic many units do a lot, and as Tianjin based process company, tunnel, Shanghai company and Wendeng City, Shandong ground engineering company all once developed grouting automatic recorder or grouting opertaing device, but, all still rested on experimental stage.

The purpose of this utility model is in the ability to bear of considering present China construction enterprises and satisfies the cycle grouting self-recording device that foundation grouting detects single the flowmeter of designing under the prerequisite that requires of a kind of usefulness.

Fig. 1 is principle of work of the present utility model and syndeton synoptic diagram.

As can be seen from Figure 1: main hardware of the present utility model by flowmeter ［ 2 ］, pressure gauge ［ 6 ］, computer ［ 10 ］, printer ［ 11 ］, overfall threeway ［ 3 ］, return The compositions such as slurry air deflector ［ 8 ］ and pressure-control valve ［ 7 ］.

The utility model has reduced by a flowmeter in the cycle grouting original technical process, ［ 8 ］ two web members of overfall threeway ［ 3 ］ and overfall air deflector have been set up, overfall air deflector ［ 8 ］ is a T-valve, can from then on form two circulations with the overfall guiding slurries agitators ［ 1 ］ of grout hole ［ 5 ］ or by overfall threeway ［ 3 ］ guiding grouting pump ［ 4 ］.Promptly one is ［ 1 ］ → ［ 2 ］ → ［ 3 ］ → ［ 4 ］ → ［ 5 ］ → ［ 6 ］ → ［ 7 ］ → ［ 8 ］ → ［ 1 ］ systemic circulation.One is ［ 6 ］ → ［ 7 ］ → ［ 8 ］ → ［ 3 ］ → ［ 4 ］ → ［ 5 ］ → ［ 6 ］ partial circulating.What be worth proposition is when the filling process metered flow, overfall air deflector ［ 8 ］ must lead to overfall threeway ［ 3 ］, thereby be clogged to the path of slurries agitator ［ 1 ］, the flowmeter ［ 2 ］ in order to avoid the overfall slurries are flowed through once more, cause and repeat metering, make metered flow greater than actual flow, cause the detection error.As seen solved the flow metering problem of cycle grouting with single flowmeter.The path that ［ 8 ］ → ［ 1 ］ is set is to provide convenience in order to clean operations such as grouting pipeline.

Slurry flow and the detection of force value of the utility model in filling process is performed such: when slurry stream just converts electric quantity signal during by pressure gauge ［ 6 ］ to through flowmeter ［ 2 ］ and overfall, and deliver to computing machine ［ 16 ］ respectively and carry out data processing, control printer ［ 11 ］ then by the running parameters of setting in advance such as the automatic print record slurry flow of form, pressure, water cement ratio and time.And flow indicator ［ 13 ］, flow accumulator ［ 12 ］ and pressure display unit ［ 14 ］ are only as the real-time monitoring in the filling process.

Fig. 1 also is the utility model one embodiment.Wherein flow ［ 2 ］ is that precision is the electromagnetic type flow meter of 0～20%, ± 0.2% full scale; Pressure gauge ［ 6 ］ designs voluntarily, and pressure is from 0～10MPa, and precision is ± 1% full scale; Computing machine ［ 10 ］ is HX-20 type or product of the same type; Printer ［ 11 ］ is CP-135 type or product of the same type; The interface of slurry road pipe ［ 9 ］ is respectively φ 3.0 ", φ 1.5 " and φ 1.0 "; Agitator and grouting pump all are universal.

The utility model is successively on probation in the grout curtain construction of River Reservoir and Goddess of Mercy Pavilion, Benxi, Liaoning reservoir in the Qingjian River, Hubei in September, 1991～Dec, obtains good result.From in April, 1992 pay Liaoning use since proof: adopts the grout absorption of single flowmeter detection cycle grouting to become possibility, and can take into account the measurement accuracy requirement of big flow and low discharge; Adopt the pressure gauge of slurry oil isolation technology safe in utilization, it is convenient to change accessory, reasonable integral structure, and it is firm that slurry road pipeline connects, and humidity resistance is good; Print format is clear, and record data are convenient to compile, preserve.Certainly, cycle grouting self-recording unit as two parameters, be still waiting the overfall air deflector to carry out Intelligent treatment with computing machine, only seep water and do not eat that slurries that slurry causes thicken and the situation of blocking slurry road pipeline takes place to avoid running into special grout hole section by manually changing electric operating into.

Claims (2)

1, a kind of cycle grouting registering instrument, mainly by agitator, flowmeter, pressure gauge, computing machine, printer, the overfall threeway, compositions such as overfall air deflector and pressure control valve, it is characterized in that connecting into two circulating slurry paths, promptly one is systemic circulation slurry road, its order of connection is from agitator 1, the flowmeter 2 of flowing through successively, overfall threeway 3, grouting pump 4, grout hole 5, pressure gauge 6, pressure control valve 7, overfall air deflector 8 is got back to agitator 1 at last, another is partial circulating slurry road, its order of connection is from pressure gauge 6, the pressure control valve 7 of flowing through successively, overfall air deflector 8, overfall threeway 3, grouting pump 4, grout hole 5 returns pressure gauge 6 at last.

2,, it is characterized in that flowmeter 2 is electromagnetic type flow meters according to the described cycle grouting registering instrument of claim 1.

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