CN216695200U

CN216695200U - On-spot calibrating installation of portable level gauge

Info

Publication number: CN216695200U
Application number: CN202220238340.8U
Authority: CN
Inventors: 刘敦利; 王杰; 许德福; 马晓春; 雷镇嘉; 王鹏
Original assignee: XINJIANG UYGUR AUTONOMOUS REGION INSTITUTE OF MEASUREMENT AND TESTING
Current assignee: XINJIANG UYGUR AUTONOMOUS REGION INSTITUTE OF MEASUREMENT AND TESTING
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-07
Anticipated expiration: 2032-01-28

Abstract

The utility model discloses a mobile liquid level meter on-site calibrating device, relates to the technical field of liquid level meter calibrating equipment, and mainly aims to provide the mobile liquid level meter on-site calibrating device for effectively calibrating a liquid level meter under the condition of no disassembly. The main technical scheme of the utility model is as follows: a mobile level gauge on-site verification device, comprising: the vehicle body is provided with a first box body and a second box body; the calibrating component is arranged in the barrel, the barrel is arranged between the first box and the second box, the two ends of the first water inlet pipe are connected to the first box and the barrel respectively, the two ends of the first water return pipe are connected to the barrel and the second box respectively, one end of the first water discharge pipe is connected to the barrel, the other end of the first water discharge pipe is connected to the detected component, and the first liquid level meter is connected to the barrel. The utility model is mainly used for the calibration of the on-site liquid level meter.

Description

On-spot calibrating installation of portable level gauge

Technical Field

The utility model relates to the technical field of liquid level meter verification equipment, in particular to a mobile liquid level meter on-site verification device.

Background

The liquid level meter is an instrument for indicating and controlling liquid level in an industrial process measurement and control system, is widely applied to links of industrial production, storage, transportation and the like, and is calculated by the Xinjiang area, and the quantity of the instruments exceeds more than 10 thousands of instruments. The accurate measurement of the liquid level meter is related to the links of trade settlement, safe production and the like, and is a very important measuring instrument. The liquid level meter is generally sent to a laboratory for first verification before installation, and is installed and used after being qualified. At present, the existing liquid level meter calibrating device in China is fixed in a laboratory, a customer needs to periodically calibrate the liquid level meter, and the liquid level meter can only be disassembled and then checked, and then is re-assembled after the disassembly.

However, due to the limitations of continuous production, complicated disassembly, numerous quantity and the like, more than 95 percent of the liquid level meters are not disassembled for inspection after being installed and used. Along with the extension of service life and the influence of environmental conditions, the measuring capability of the liquid level meter changes, and metering is out of alignment or even damaged, thereby easily causing major problems such as trade disputes, safety accidents and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, embodiments of the present invention provide a field calibration apparatus for a mobile liquid level meter, and mainly provide a field calibration apparatus for a mobile liquid level meter, which can effectively calibrate a liquid level meter on the field without disassembling the liquid level meter.

In order to achieve the purpose, the utility model mainly provides the following technical scheme:

the embodiment of the utility model provides a mobile liquid level meter on-site calibrating device, which comprises:

a vehicle body having a first box and a second box;

verification component, verification component includes barrel, first inlet tube, first calandria, first return pipe, stationary flow part and first level gauge, stationary flow part sets up in the barrel, the barrel sets up first box with between the second box, the both ends of first inlet tube connect respectively in first box with the barrel, the both ends of first return pipe connect respectively in the barrel with the second box, the one end of first calandria connect in the barrel, the other end is connected in being examined the part, first level gauge connect in the barrel.

Furthermore, the verification component further comprises a first water inlet pump, a first water return pump, a first water inlet valve and a first water return valve, the first water inlet pump and the first water inlet valve are arranged on the first water inlet pipe, and the first water return pump and the first water return valve are arranged on the first water return pipe.

Further, the barrel includes first barrel, second barrel, third barrel and a plurality of connecting piece, the bottom fixed connection of first barrel in the automobile body, the one end of second barrel can be dismantled connect in first barrel, the other end can be dismantled connect in the third barrel, the connecting piece sets up respectively first barrel with between the second barrel and the second barrel with between the third barrel.

Further, every the connecting piece includes sealing ring, fastener and knob, the sealing ring sets up first barrel with between the second barrel and the second barrel with between the third barrel, the fastener has the joint recess, first barrel with the edge of second barrel perhaps the second barrel with the edge card of third barrel is gone into the joint recess, the knob rotate connect in the fastener.

Furthermore, the detected part comprises a storage tank and a detected liquid level meter, the detected liquid level meter is arranged on the storage tank, the detected liquid level meter is provided with a drain pipe, and the first drain pipe is connected to the drain pipe.

Further, a first drain valve is arranged on the first drain pipe.

Further, the vehicle body further comprises a communicating pipe, and two ends of the communicating pipe are respectively connected to the first box body and the second box body.

Further, the first case and the second case have the same shape and volume.

Furthermore, the automobile body still includes total inlet tube, first waste water pipe and second waste water pipe, total inlet tube sets up the upper portion of first box, first waste water pipe sets up the bottom of first box, the second waste water pipe sets up the bottom of second box.

Compared with the prior art, the utility model has the following technical effects:

in the technical scheme provided by the embodiment of the utility model, the vehicle body is used for bearing and supporting the verification component and is provided with a first box body and a second box body; the effect of examination part is examined and determine the part to being examined, examine and determine the part and include the barrel, first inlet tube, first drain pipe, first time return pipe, stationary flow part and first level gauge, stationary flow part sets up in the barrel, the barrel sets up between first box and second box, the both ends of first inlet tube are connected respectively in first box and barrel, the both ends of first time return pipe are connected respectively in barrel and second box, the one end of first drain pipe is connected in the barrel, the other end is connected in examining the part, first level gauge is connected in the barrel, when needing to examine the part, fill water in the first box earlier, then open first inlet tube, make water get into the barrel and examine the part, based on the UNICOM's principle, the barrel is the same with the interior water level height of examined the level gauge and is risen simultaneously. When the liquid level height rose to every setting value, close first inlet tube, wait for the liquid level after stable, first level gauge carries out data record to the liquid level in the barrel, then carry out data record to the level gauge of examining, calculate the error simultaneously, finish until the highest liquid level is examined, then open first return pipe, make water discharge the second box in barrel and the part examined, when the liquid level height reduced to every setting value, close first return pipe, first level gauge carries out data record to the liquid level in the barrel, then carry out data record to the level gauge of examining, calculate the error simultaneously, finish until the bottom liquid level is examined, examine the process, for prior art, the level gauge installation is again dismantled after using and is examined. Along with the prolonging of service life and the influence of environmental conditions, the measuring capacity of the liquid level meter changes, the metering is out of alignment and even damaged, thereby easily causing major problems of trade disputes, safety accidents and the like, how to develop a set of liquid level meter calibrating device which can be moved to a use site, and the liquid level meter can be rapidly and conveniently calibrated on the premise of not disassembling the liquid level meter and not influencing continuous production, thereby ensuring the continuous, accurate and reliable metering performance of the liquid level meter, which is a difficult problem to be solved urgently at present. Not only can examine and determine fast the part examined of scene at any time, can also make things convenient for calibrating installation's transportation and dismantlement to, the barrel sets up between first box and second box, makes the focus of automobile body remain stable, avoids taking place the slope, and simultaneously, the stationary flow part can realize the rapid stabilization of the surface of water when the liquid level rises and descends, avoids the surface of water to appear violent undulant, shortens the stabilization time of liquid level by a wide margin, thereby has improved the efficiency of examination.

Drawings

Fig. 1 is a schematic structural diagram of a mobile liquid level meter on-site verification device provided by an embodiment of the utility model;

FIG. 2 is a schematic top view of a mobile liquid level meter on-site verification apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a cylinder according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a connector according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a detected component according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 5, an embodiment of the present invention provides a mobile liquid level meter on-site verification apparatus, which includes:

a vehicle body 1, the vehicle body 1 having a first case 11 and a second case 12;

verification component, verification component includes barrel 21, first inlet tube 22, first drain pipe 23, first water return pipe 24, steady flow component 25 and first level gauge 26, steady flow component 25 sets up in barrel 21, barrel 21 sets up between first box 11 and second box 12, the both ends of first inlet tube 22 are connected respectively in first box 11 and barrel 21, the both ends of first water return pipe 24 are connected respectively in barrel 21 and second box 12, the one end of first drain pipe 23 is connected in barrel 21, the other end is connected in the part of examining, first level gauge 26 is connected in barrel 21.

In the technical scheme provided by the embodiment of the utility model, the vehicle body 1 is used for bearing and supporting the verification component, and the vehicle body 1 is provided with a first box body 11 and a second box body 12; the verification component is used for verifying the detected component and comprises a barrel 21, a first water inlet pipe 22, a first water discharge pipe 23, a first water return pipe 24, a flow stabilizing component 25 and a first liquid level meter 26, wherein the flow stabilizing component 25 is arranged in the barrel 21, the barrel 21 is arranged between a first box body 11 and a second box body 12, two ends of the first water inlet pipe 22 are respectively connected to the first box body 11 and the barrel 21, two ends of the first water return pipe 24 are respectively connected to the barrel 21 and the second box body 12, one end of the first water discharge pipe 23 is connected to the barrel 21, the other end of the first water discharge pipe is connected to the detected component, the first liquid level meter 26 is connected to the barrel 21, when the detected component needs to be verified, the first box body 11 is filled with water, then the first water inlet pipe 22 is opened, water enters the barrel 21 and the detected liquid level meter 32, the water level in the barrel 21 and the detected liquid level meter 32 are the same and rise simultaneously, when the liquid level height rises to each set value, the first water inlet pipe 22 is closed, the first liquid level meter 26 carries out data recording on the liquid level in the barrel 21, then the detected liquid level meter in the detected part carries out data recording, meanwhile, errors are calculated until the data acquisition of the highest liquid level is finished, then the first water return pipe 24 is opened, water is discharged into the second box body 12 from the barrel 21 and the detected part, when the liquid level height is reduced to each set value, the first water return pipe 24 is closed, the first liquid level meter 26 carries out data recording on the liquid level in the barrel 21, then, the detected liquid level meter in the detected part carries out data recording, meanwhile, errors are calculated until the verification process is finished, and compared with the prior art, the liquid level meter is not detached for sending for verification after being installed and used. Along with the prolonging of service life and the influence of environmental conditions, the measuring capacity of the liquid level meter changes, the metering is out of alignment and even damaged, thereby causing major problems of trade disputes, safety accidents and the like, how to develop a set of liquid level meter calibrating device, which can be moved to a use site, and the liquid level meter can be rapidly and conveniently calibrated on the premise of not disassembling the liquid level meter and not influencing continuous production, thereby ensuring the continuous, accurate and reliable metering performance, which is a difficult problem to be solved urgently at present, in the technical scheme, a first box body 11 and a second box body 12 are arranged on a vehicle body 1, a cylinder body 21 is positioned between the first box body 11 and the second box body 12, two ends of a first water inlet pipe 22 are respectively connected with the first box body 11 and the cylinder body 21, two ends of a first water return pipe 24 are respectively connected with the cylinder body 21 and the second box body 12, one end of a first water discharge pipe 23 is connected with the cylinder body 21, the other end is connected in being examined the part, not only can be at any time to the part of being examined of scene carry out quick examination, can also make things convenient for calibrating installation's transportation and dismantlement, and, barrel 21 sets up between first box 11 and second box 12 for the focus of automobile body 1 remains stable, avoids taking place the slope, and simultaneously, stationary flow part 25 can realize the fast stabilization of surface of water when the liquid level rises and descends, avoids the surface of water violent fluctuation to appear, shortens the stabilization time of liquid level by a wide margin, thereby has improved the efficiency of examination.

The vehicle body 1 is used for bearing and supporting the verification components, the vehicle body 1 is provided with a first box body 11 and a second box body 12, the vehicle body 1 is made of stainless steel materials, the vehicle body 1 comprises a bottom plate, a handrail 13 and wheels 14, the handrail 13 is connected to one end of the bottom plate, the wheels 14 are arranged at the bottom of the bottom plate and can enable the vehicle body 1 to move, the first box body 11 and the second box body 12 are arranged at the upper part of the bottom plate, the first box body 11 and the second box body 12 have the same volume and the same shape, and optionally, a communicating pipe is arranged between the first box body 11 and the second box body 12, so that the first box body 11 and the second box body 12 can be communicated with each other, on one hand, the vehicle body 1 can be kept balanced, the vehicle body 1 is prevented from being turned on one side due to the fact that the weight difference of water in the first box body 11 and the second box body 12 is overlarge, and simultaneously, water in the first box body 11 and the second box body 12 can flow mutually, thereby achieving the effect of saving water, optionally, a detachable baffle 18 is arranged between the first box 11 and the second box 12, so that the distance between the first box 11 and the second box 12 is fixed, and the stability of the first box 11 and the second box 12 can be improved, the baffle 18 is detachably connected to the bottom plate, the first box 11 and the second box 12, specifically, a support rod 16 is arranged on the first box 11 and the second box 12, one end of the support rod 16 is connected to the cylinder 21, and the other end is connected to the first box 11, the second box 12 or the baffle 18, so as to achieve the technical effect of fixing the cylinder 21, optionally, the vehicle body 1 further comprises a main water inlet pipe 151, a first waste water pipe 152 and a second waste water pipe 153, the main water inlet pipe 151 is arranged at the upper part of the first box 11, the first waste water pipe 152 is arranged at the bottom part of the first box 11, the second waste water pipe 153 is arranged at the bottom part of the second box 12, the main water inlet pipe 151 is used for facilitating water to be delivered to the first tank 11 and the second tank 12, the first waste water pipe 152 and the second waste water pipe 153 are used for facilitating water discharge in the first tank 11 and the second tank 12, and manual valves or electric valves are arranged on the first waste water pipe 152 and the second waste water pipe 153 to facilitate water discharge; the verification component is used for verifying the detected component and comprises a barrel 21, a first water inlet pipe 22, a first water discharge pipe 23, a first water return pipe 24, a flow stabilizing component 25 and a first liquid level meter 26, wherein the flow stabilizing component 25 is arranged in the barrel 21, the flow stabilizing component 25 is a plate body with through holes 251, the through holes 251 are uniformly distributed on the plate body, the number of the flow stabilizing components 25 is two, the two flow stabilizing components 25 are respectively arranged at one-third position and two-third position of the barrel 21, the flow stabilizing component 25 is beneficial to keeping the water level stable when water in the barrel 21 rises or falls, the rapid and accurate detection of the water level data is facilitated, the water level stable waiting time is saved, the efficiency is improved, the barrel 21 is arranged between the first box body 11 and the second box body 12, two ends of the first water inlet pipe 22 are respectively connected to the first box body 11 and the barrel 21, so that water can enter the barrel 21 from the first box body 11, specifically, the first water inlet pump 27 and the first water inlet valve 29 are disposed on the first water inlet pipe 22, the first water inlet pump 27 and the first water inlet valve 29 can be electrically connected or signal connected, so that the first water inlet pump 27 and the first water inlet valve 29 can be remotely controlled, two ends of the first water return pipe 24 are respectively connected to the barrel 21 and the second box 12, so that water can enter the second box 12 from the barrel 21, specifically, the first water return pump 28 and the first water return valve 20 are disposed on the first water return pipe 24, the first water return pump 28 and the first water return valve 20 can be electrically connected or signal connected, so that the first water return pump 28 and the first water return valve 20 can be remotely controlled, of course, a manual valve can be adopted, specifically, it is set as required, one end of the first water outlet pipe 23 is connected to the barrel 21, the other end is connected to the detected component, and water flows into the detected component after entering the barrel 21, specifically, the detected component includes a storage tank 31 and a detected liquid level meter 32, the detected liquid level meter 32 is arranged on the storage tank 31, the detected liquid level meter 32 has a drain pipe 34, the first drain pipe 23 is connected to the drain pipe 34, when the detection is performed, water in the detected liquid level meter 32 needs to be drained, specifically, the first drain valve 4 and the drain valve 5, the first drain valve 4 is arranged on the first drain pipe 23, the drain valve 5 is arranged on the drain pipe 34, the first drain valve 4 and the drain valve 5 adopt valves capable of being controlled by signals, so that the first drain valve 4 and the drain valve 5 can be remotely controlled, of course, manual valves can also be adopted, the detected component specifically sets as required, the detected component further includes a liquid level valve 33, the liquid level valve 33 is arranged between the detected liquid level meter 32 and the storage tank 31, the liquid level valve 33 is closed first, then the water in the detected liquid level meter 32 is drained and then connected to the first drain pipe 23, the first liquid level meter 26 is connected to the cylinder 21, in the technical scheme, the first box 11 and the second box 12 are arranged on the vehicle body 1, the cylinder 21 is positioned between the first box 11 and the second box 12, two ends of the first water inlet pipe 22 are respectively connected to the first box 11 and the cylinder 21, two ends of the first water return pipe 24 are respectively connected to the cylinder 21 and the second box 12, one end of the first water discharge pipe 23 is connected to the cylinder 21, and the other end of the first water discharge pipe is connected to the detected part, so that the detected part on site can be rapidly detected at any time, the transportation and disassembly of the detecting device can be facilitated, in addition, the cylinder 21 is arranged between the first box 11 and the second box 12, the gravity center of the vehicle body 1 is kept stable, the inclination is avoided, meanwhile, the steady flow part 25 can realize the rapid stabilization of the water surface when the liquid level rises and falls, the violent fluctuation of the water surface is avoided, and the stabilization time of the liquid level is greatly shortened, thereby improving the efficiency of the verification.

The specific operation of the device is as follows:

step 1, closing all valves of the calibrating device, disconnecting the liquid level valve 33, opening the drain valve 5, draining liquid in the liquid level meter 32 to be detected, connecting the first drain pipe 23 and the drain pipe 34, and opening the first drain valve 4;

step 2, determining the required water consumption in the first box body 11 according to the measuring range of the liquid level meter 32 to be detected, and then introducing water into the first box body 11;

and 3, starting the first water inlet pump 27 and the first water inlet valve 29, enabling water to enter the barrel 21 from the first box body 11 and enter the detected liquid level meter 32 at the same time, enabling the water levels of the first box body and the detected liquid level meter to gradually rise, and when the first liquid level meter 26 reaches the set first liquid level height, closing the first water inlet valve 29 and stopping the first water inlet pump 27. After the water surface is stable, recording the liquid level data of the first liquid level meter 26 and the detected liquid level meter 32, and recording and calculating errors;

step 4, repeating the step 3 until the verification of the highest liquid level height is completed;

and 5, starting the first water return pump 28 and the first water return valve 20, enabling water to enter the second box body 12 from the cylinder body 21, simultaneously discharging the detected liquid level meter 32, enabling the water levels of the first liquid level meter and the detected liquid level meter to gradually descend, and when the first liquid level meter 26 reaches the set second liquid level height, closing the first water return valve 20 and stopping the first water return pump 28. After the water surface is stable, recording the liquid level data of the first liquid level meter 26 and the detected liquid level meter 32, and recording and calculating errors;

step 6, repeating the step 5 until the verification of the bottommost liquid level height is completed;

and 7, closing the drain valve 5 and the first drain valve 4, draining the water in the first box body 11 and the second box body 12, opening the liquid level valve 33, and recovering the use state of the detected liquid level meter 32.

Further, the cylinder 21 includes a first cylinder 211, a second cylinder 212, a third cylinder 213 and a plurality of connectors, the bottom of the first cylinder 211 is fixedly connected to the vehicle body 1, one end of the second cylinder 212 is detachably connected to the first cylinder 211, the other end is detachably connected to the third cylinder 213, and the connectors are respectively disposed between the first cylinder 211 and the second cylinder 212 and between the second cylinder 212 and the third cylinder 213. In the present embodiment, the cylinder 21 is further defined, the bottom of the first cylinder 211 is fixedly connected to the vehicle body 1, one end of the second cylinder 212 is detachably connected to the first cylinder 211, the other end of the second cylinder 212 is detachably connected to the third cylinder 213, and the connecting members are respectively arranged between the first cylinder 211 and the second cylinder 212 and between the second cylinder 212 and the third cylinder 213, so that the first cylinder 211, the second cylinder 212 and the third cylinder 213 can be longitudinally connected together, in order to improve the applicability of the cylinder 21, the height of the first cylinder 211 is 1.5m, the height of the second cylinder 212 is 1m, the height of the third cylinder 213 is 0.5m, the total height of the first cylinder 211, the second cylinder 212 and the third cylinder 213 is 3m, that is, the maximum measurement liquid level of the calibration apparatus is 3m, the calibration requirements of the liquid level meter used on site can be met, and the assembled cylinder 21 can be used singly or in combination according to the measurement range of the detected components, thereby improve calibrating installation's suitability to, can reduce the volume that barrel 21 occupy after barrel 21 dismantles, thereby reach the technical effect of convenient dismantlement and transportation.

Further, each connecting member includes a sealing ring 2141, a fastening member 2142, and a knob 2143, the sealing ring 2141 is disposed between the first barrel 211 and the second barrel 212 and between the second barrel 212 and the third barrel 213, the fastening member 2142 has a clamping groove 2144, edges of the first barrel 211 and the second barrel 212 or edges of the second barrel 212 and the third barrel 213 are clamped into the clamping groove 2144, and the knob 2143 is rotatably connected to the fastening member 2142. In this embodiment, a connection member is further defined, and a sealing ring 2141 is disposed between the first cylinder 211 and the second cylinder 212 and between the second cylinder 212 and the third cylinder 213, thereby achieving a technical effect of improving sealing performance, the fastening member 2142 has a clamping groove 2144, the edges of the first cylinder 211 and the second cylinder 212 or the edges of the second cylinder 212 and the third cylinder 213 are clamped in the clamping groove 2144, the knob 2143 is rotatably connected to the fastening member 2142, a connecting groove is respectively disposed at an upper portion of the first cylinder 211, at both ends of the second cylinder 212, and at a lower portion of the third cylinder 213, the sealing ring 2141 can be clamped in the connecting groove, and a protruding ring 215 is respectively disposed at the upper edge of the first cylinder 211, at both end edges of the second cylinder 212, and at a lower edge of the third cylinder 213, the protruding ring 215 can be clamped in the clamping groove 2144, and then the knob 2143 is rotated, so that the diameter of the fastening member 2142 is reduced, thereby achieving the technical effect of connecting and fixing the first cylinder 211 and the second cylinder 212 or the second cylinder 212 and the third cylinder 213.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A portable level gauge on-site verification device, characterized by, includes:

a vehicle body having a first box and a second box;

verification component, verification component includes barrel, first inlet tube, first calandria, first return water pipe, stationary flow part and first level gauge, stationary flow part sets up in the barrel, the barrel sets up first box with between the second box, the both ends of first inlet tube connect respectively in first box with the barrel, the both ends of first return water pipe connect respectively in the barrel with the second box, the one end of first calandria connect in the barrel, the other end is connected in and is examined the part, first level gauge connect in the barrel.

2. The mobile level gauge on-site verification device of claim 1,

the verification part further comprises a first water inlet pump, a first water return pump, a first water inlet valve and a first water return valve, the first water inlet pump and the first water inlet valve are arranged on the first water inlet pipe, and the first water return pump and the first water return valve are arranged on the first water return pipe.

3. The mobile level gauge on-site verification device of claim 1,

the barrel includes first barrel, second barrel, third barrel and a plurality of connecting piece, the bottom fixed connection of first barrel in the automobile body, the one end of second barrel can be dismantled connect in first barrel, the other end can be dismantled connect in the third barrel, the connecting piece sets up respectively first barrel with between the second barrel and the second barrel with between the third barrel.

4. The on-site verification device for mobile liquid level meters of claim 3,

every the connecting piece includes sealing ring, fastener and knob, the sealing ring sets up first barrel with between the second barrel and the second barrel with between the third barrel, the fastener has the joint recess, first barrel with the edge of second barrel perhaps the second barrel with the edge card of third barrel is gone into the joint recess, the knob rotate connect in the fastener.

5. The mobile level gauge on-site verification device of any one of claims 1 to 4, further comprising:

and the first drain valve is arranged on the first drain pipe.

6. The mobile level gauge on-site verification device according to any one of claims 1 to 4,

the automobile body still includes communicating pipe, the both ends of communicating pipe connect respectively in first box with the second box.

7. The mobile level gauge on-site verification device according to any one of claims 1 to 4,

the first case and the second case have the same shape and volume.

8. The mobile level gauge on-site verification device according to any one of claims 1 to 4,

the automobile body still includes total inlet tube, first waste water pipe and second waste water pipe, total inlet tube sets up the upper portion of first box, first waste water pipe sets up the bottom of first box, the second waste water pipe sets up the bottom of second box.