CN103175591B - Hand automatic tank gauge calibrating installation - Google Patents

Abstract

The present invention relates to a kind of hand automatic tank gauge calibrating installation.Base of the present invention is equipped with buffer tank, water inlet manifold road is connected in its front, there is hand valve on road to water inlet manifold, glass tube is furnished with in its back, at it, solenoid valve is housed below respectively and is connected total outlet pipeline with hand valve, manual inlet pipeline and hand automatic feeding water pipeline is connected respectively at its right and left, manual inlet pipeline and hand automatic feeding water pipeline respectively connected a tank, No. two tanks, No. three tanks, volume tank, manual inlet pipeline correspond to four respectively cannedly has four hand valves, hand automatic feeding water pipeline correspond to four canned hand valve and solenoid valves having series winding respectively, four tanks are furnished with glass tube and straight steel ruler respectively, below parallel hand valve is housed respectively and solenoid valve is connected to total outlet pipeline at it.The present invention is reasonable in design, easy and simple to handle, tailored appearance, work efficiency are high, the hand automatic tank gauge calibrating installation that usable range is wide.

Description

Manual automatic liquid level gauge verification device

technical field

The invention belongs to the field of metering instruments, in particular to a manual and automatic liquid level meter verification device, which is used for the verification of the liquid level meter.

Background technique

The liquid level gauge is an instrument used to indicate and control the liquid level in the industrial process measurement and control system, and it is widely used in the fields of petroleum, chemical industry, medicine, metallurgy, electric power and so on. As an important measuring instrument, the measurement accuracy of the liquid level gauge is directly related to the economic benefit indicators of the enterprise's business settlement, cost accounting, and energy conservation, and is also directly related to the economic interests of my country's foreign trade and the national measurement honor. At the same time, when companies use liquid level gauges for liquid level measurement, there are also many measurement and transfer errors. For example, in the liquid level measurement of oil tanks, if a major error in liquid level measurement causes the oil tank to overflow, it may cause huge economic losses and safety accidents. At present, most of the domestic liquid level gauge verification devices use steel rulers and staff to identify the liquid level artificially, which will inevitably lead to human errors, which is not conducive to the correctness of the verification results, and the existing devices are wasteful. Large water volume, complex operation, low work efficiency and other disadvantages, therefore, the research and application of liquid level gauge calibration device is very necessary.

Contents of the invention

In order to solve the problems existing in the existing liquid level meter verification device, the invention provides a novel manual and automatic liquid level meter verification device with low water consumption, simple operation and high degree of automation.

The invention includes a water tank, a base, a total water inlet pipeline, a pressure-stabilizing tank, a manual water inlet pipeline, a manual and automatic water inlet pipeline, a No. 1 tank, a No. 2 tank, a No. 3 tank, a volume tank and a total water outlet pipeline. There is a pressure-stabilizing tank installed on the base, which is connected to the water tank through the main water inlet pipeline, and is connected to the No. 1 tank, No. The five tanks are communicated with the water tank through the total outlet pipeline.

The mounting bracket of the liquid level gauge to be tested is arranged on the base.

The switch part in the total water inlet pipeline is composed of a solenoid valve.

The upper part of the surge tank is equipped with a pressure gauge and an exhaust ball valve.

The upper ends of the No. 1 tank, No. 2 tank and No. 3 tank are equipped with mounting brackets for various liquid level gauges to be tested.

The invention has the advantages of reasonable structure, simple appearance, fast and convenient operation, one process can complete the verification of multiple liquid level gauges, the verification is accurate and reliable, and the high degree of automation is a major breakthrough in the technical field, and has promotion and application prospects.

Description of drawings

Fig. 1 is the schematic diagram of surge tank;

Fig. 2 is a schematic diagram of the total water inlet pipeline;

Fig. 3 is a schematic diagram of the manual water inlet pipeline;

Fig. 4 is the schematic diagram of manual automatic water inlet pipeline;

Fig. 5 is a schematic diagram of the manual and automatic water outlet pipeline;

Fig. 6 is a structural schematic diagram of a manual automatic liquid level gauge verification device.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, the surge tank of the present invention includes a pressure gauge 101, an exhaust ball valve 102, a tank body 103, and a visible glass tube 107. The tank body 103 has a water inlet 104 on the right side, and a water inlet hole 104 on the front and rear sides. Outlet hole 106, two drain holes 105 are arranged at the tank body bottom. Close the ball valve 102, water enters from the water inlet hole 104, and the water level and pressure value in the tank can be observed from the sight glass tube 107 and the pressure gauge 101. Outlet water, carry out the verification of forward stroke; When needing to drain, can carry out draining from water outlet 105;

As shown in Figure 2, the total water inlet pipeline of the present invention includes a conversion port 201, a manual valve 202, and a connecting pipe 203, and the connecting pipe 203 is connected to the water pump on one side and is connected to the manual valve 202; the manual valve 202 can control the water flow. size and function as a switch; the conversion port 201 is used to match the interface diameter between the manual valve 202 and the tank body 103 .

As shown in Figure 3, the manual water inlet pipe of the present invention includes a connecting pipe 301, a manual valve 302, a manual valve 303, a manual valve 304, and a manual valve 305, and the connecting pipe 301 communicates with the outlet hole 106 of the surge tank; the manual valve 302 is the water inlet switch of the manual positive stroke verification of the No. 1 tank; the manual valve 303 is the water inlet switch of the manual positive stroke verification of the No. 2 tank; the manual valve 304 is the water inlet switch of the manual positive stroke verification of the No. 3 tank; Valve 305 is a manual water inlet switch for the volume tank.

As shown in Figure 4, the manual automatic water inlet pipe of the present invention includes a connecting pipe 401, a solenoid valve 402, a manual valve 403, a solenoid valve 404, a manual valve 405, a solenoid valve 406, a manual valve 407, a solenoid valve 408, a manual valve 409, the connecting pipe 401 is connected with the water outlet hole 106 of the surge tank; the electromagnetic valve 402 and the manual valve 403 are the water inlet switches for the automatic positive stroke verification of the No. 1 tanker; The water inlet switch of stroke verification; Solenoid valve 406 and manual valve 407 are the water inlet switches of No. 3 tank hand automatic positive stroke verification; Solenoid valve 408 and manual valve 409 are the hand automatic water inlet switches of volume tank.

As shown in Figure 5, the manual automatic water outlet pipe of the present invention includes a main drain pipe 501, a manual valve 502, a solenoid valve 503, a manual valve 504, a solenoid valve 505, a manual valve 506, a solenoid valve 507, a manual valve 508, an electromagnetic Valve 509, manual valve 510, solenoid valve 511, and the main drain pipe 501 are connected to the water outlet valves and water tanks of each tank; manual valve 502 and solenoid valve 503 are the drain switches of the surge tank; manual valve 504 and solenoid valve 505 are the first The drain switch of the tank; the manual valve 506 and the solenoid valve 507 are the drain switches of the No. 2 tank; the manual valve 508 and the solenoid valve 509 are the drain switches of the No. 3 tank; the manual valve 510 and the solenoid valve 511 are the drain switches of the volume tank.

As shown in Figure 6, the manual and automatic liquid level gauge verification device of the present invention includes a water tank 6, a base 4, a total water inlet pipeline 5, a surge tank 3, a manual water inlet pipeline 10, a manual and automatic water inlet pipeline 7, a No. tank 1, No. 2 tank 2, No. 3 tank 8, volume tank 9, and total outlet pipeline 11.

The manual automatic liquid level gauge verification device is equipped with a surge tank 3 on its base 4, which is connected to the water tank 6 through the main water inlet pipeline 5, and uses the pressure difference generated by the water pump to pump the water in the water tank 6 into the stabilized pressure tank. In the tank 3; the switch module of the main water inlet pipeline 5 is composed of a manual valve 202; the pressure regulator tank 3 is connected to the first tank 1, the second tank 2, and the third tank 8 through the manual automatic water inlet pipeline 7 or the manual water inlet pipeline 10 , Volume tank 9, the height of each tank is 2440mm, the diameter is 350mm, 208mm, 102mm respectively, the switch module of manual automatic water inlet pipeline 7 is made up of manual valve and electromagnetic valve in series, and the switch module of manual water inlet pipeline 10 is composed of manual valve Composition; through the control of the switch module of the opponent's automatic water inlet pipeline 7, the positive stroke manual automatic verification of the detected liquid level gauge on the first tank 1, the second tank 2, and the third tank 8 is carried out; through the manual water inlet pipeline 10 is controlled by the switch module to perform manual verification of the positive stroke of the tested liquid level gauge on the first tank 1, the second tank 2, and the third tank 8; the upper end of the first tank 1 is equipped with a tested liquid level gauge installation bracket , according to different needs, 1 to 3 liquid level gauges to be tested can be installed on it, and a detection hole for a differential pressure liquid level gauge is equipped at the lower end to detect the differential pressure liquid level gauge to be tested. It is connected with a visual glass tube and a steel ruler, which can be used for manual verification; the upper end of No. 2 tank 2 is equipped with a mounting bracket for the liquid level gauge to be tested, and 1 to 3 liquid level gauges to be tested can be installed on it according to different needs. There is a detection hole of a differential pressure level gauge at its lower end, which is used to detect the differential pressure level gauge to be tested, and a visible glass tube and a steel ruler are connected to its side, which can be used for manual verification; 3. The upper end of No. 8 tank is equipped with a tested liquid level gauge mounting bracket, and a tested liquid level gauge is installed on it, and a detection hole of a differential pressure liquid level gauge is equipped at its lower end to detect the tested differential pressure. The liquid level gauge is connected with a visible glass tube and a steel ruler on its side, which can be used for manual verification; the volume tank 9 is equipped with a steel ruler and a glass tube on its side; Tank 3, No. 1 tank 1, No. 2 tank 2, No. 3 tank 8, and volume tank 9 are equipped with a set of parallel manual valves and solenoid valves, which can perform manual and manual verification of the downstroke respectively; the total outlet pipeline 11 utilizes The pressure difference drains the water into the tank 6 .

The working principle of the present invention is: the pressure stabilizing tank 3 performs the function of stabilizing the water pressure and providing the water source, and the No. 1 tank 1 is used for testing various types of magnetic flap liquid level gauges, differential pressure liquid level gauges, and drop-in liquid level gauges. Liquid level gauge, No. 2 tank 2 is used to verify various types of liquid level gauges such as differential pressure liquid level gauges and float type liquid level gauges, and No. 3 tank 8 is used to verify various types of liquid level gauges such as differential pressure liquid level gauges , the volume tank is used to verify the volume capacity. Before working, first turn on the water pump, and then open the manual valve 202 in the main water inlet pipeline 5 to fill and pressurize the surge tank. The number of gauges requires three tanks to work at the same time. The maximum number of checks for the first tank 1 and the second tank 2 is three, and the third tank 8 can only check one liquid level gauge at most. A standard radar liquid level gauge is installed on the No. 1 tank 1, which is used as the verification standard of this device. The verification is carried out according to the verification regulations. When performing the positive stroke verification, select the manual or manual automatic verification method as required. According to the requirement, gently open the manual valve 302, manual valve 303, and manual valve 304 in the manual water inlet pipeline 10 to perform positive stroke verification on the No. 1 tank, No. 2 tank, and No. 3 tank. When the water level rises to each verification point , record the indication value of the tested liquid level gauge and the indication value of the standard liquid level gauge until the liquid level rises to the upper limit of detection, and close each valve; when manual automatic verification is required, gently open the manual automatic water inlet pipeline 7 as required The manual valve 403, manual valve 405, and manual valve 407 are used to control the solenoid valve 402, solenoid valve 404, and solenoid valve 406 by using the host computer software to verify the forward stroke of the No. 1 tank, No. 2 tank, and No. 3 tank. When the water level rises When reaching each verification point, record the indicated value of the tested liquid level gauge and the indicated value of the standard liquid level gauge until the liquid level rises to the upper limit of detection, and then close each valve; when performing reverse stroke verification, gently open the main drainage pipeline 11 The manual valves 504, 506, 508 in the middle or use the host computer to control the solenoid valves 505, 507, 509 to make the liquid level drop slowly. value and the indication value of the standard liquid level gauge until the liquid level returns to zero, and the process of indication verification and hysteresis verification of the liquid level gauge is completed.

Claims (5)

1. hand automatic tank gauge calibrating installation, comprise: water tank, base, water inlet manifold road, buffer tank, manual inlet pipeline, hand automatic feeding water pipeline, a tank, No. two tanks, No. three tanks, volume tank, total outlet pipelines, it is characterized in that: base is provided with buffer tank, it is connected with water tank by water inlet manifold road, and manually inlet pipeline or hand automatic feeding water pipeline are connected with a tank, No. two tanks, No. three tanks, volume tanks, above five tanks are communicated with water tank by total outlet pipeline;

Buffer tank carries out stable hydraulic pressure, provides water source, a tank is for examining and determine magnetic flap level gauge, differential pressure type level gauge, called putting-into-type liquid level meter, No. two tanks are for examining and determine differential pressure type level gauge, floating ball type liquid-level meter, No. three tanks are for examining and determine differential pressure type level gauge, and volume tank is used for examining and determine volume capacity, before work, first water pump is opened, then open the first hand valve (202) in water inlet manifold road to pour water pressure process to buffer tank, according to which tank of type selecting of tested liquid level gauge as calibrating tank, if the number needs of tested liquid level gauge wants three tanks to work simultaneously, the maximum calibrating amounts of a tank and No. two tanks is three, and a tested liquid level gauge examined and determine at most by No. three tanks, a tank is provided with standard radar liquid level gauge, in this, as the standard verification of this device, examine and determine according to vertification regulation, when carrying out the calibrating of positive stroke, select manual or hand automatic Verification mode as required, when needs are manually examined and determine, open the second hand valve (302) in manual inlet pipeline, 3rd hand valve (303), 4th hand valve (304) is to a tank, No. two tanks, No. three tanks carry out the calibrating of positive stroke, when water level rises to each calibrating point, record the indicating value of tested liquid level gauge and the indicating value of standard liquid level gauge, until liquid level rises to upper limit of detection, close each valve, when needs hand automatic Verification, open the 5th hand valve (403) in hand automatic feeding water pipeline, the 6th hand valve (405), the 7th hand valve (407) and utilize upper computer software to control the first solenoid valve (402), the second solenoid valve (404), the 3rd solenoid valve (406) carry out positive stroke calibrating to a tank, No. two tanks, No. three tanks, when water level rises to each calibrating point, record the indicating value of tested liquid level gauge and the indicating value of standard liquid level gauge, until liquid level rises to upper limit of detection, close each valve, when carrying out revesal calibrating, open the 8th hand valve (504) in main sewer road, the 9th hand valve (506), the tenth hand valve (508) or utilize PC control the 4th solenoid valve (505), the 5th solenoid valve (507), the 6th solenoid valve (509), liquid level is slowly declined, and when it is to each calibrating point set, record the indicating value of tested liquid level gauge and the indicating value of standard liquid level gauge, until liquid level zero, so far complete value testing and the return difference verification process of liquid level gauge.

2. hand automatic tank gauge calibrating installation according to claim 1, is characterized in that: the mounting bracket described base having tested liquid level gauge.

3. hand automatic tank gauge calibrating installation according to claim 1, is characterized in that: the switch sections in described water inlet manifold road is made up of hand valve.

4. hand automatic tank gauge calibrating installation according to claim 1, is characterized in that: described buffer tank top is furnished with tensimeter, and venting ball valve is housed.

5. hand automatic tank gauge calibrating installation according to claim 1, is characterized in that: a described tank, No. two tanks, No. three tank upper ends are furnished with the mounting bracket of various tested liquid level gauge.