Asphalt liquid level measuring device

Abstract

The utility model discloses an asphalt liquid level measuring device which comprises a radar liquid level meter externally connected to the top wall of a storage tank and provided with a radar probe extending into the top of an inner cavity of the storage tank, a vertical protection barrel with the top end fixedly connected to the inner top wall of the storage tank, surrounding the radar probe and provided with an opening in the bottom end, and a sealing cover hinged to the bottom end of the protection barrel. The torsional spring is installed at the hinged position and drives the sealing cover to tightly cover and seal the bottom end of the protection barrel, the nozzle is arranged on the inner side wall of the protection barrel, the air supply pipe is externally connected to the outer side wall of the protection barrel and communicated with the nozzle, and the air supply valve is arranged on the air supply pipe. According to the asphalt liquid level measuring device, the liquid level of liquid asphalt in the storage tank can be detected, the radar probe of the radar liquid level meter can be protected, smoke generated by high temperature of the asphalt in the storage tank can be effectively prevented from being in contact with the radar probe, and the smoke is prevented from causing measurement failure of the radar liquid level meter; therefore, the overflow risk of asphalt storage caused by measurement failure is avoided.

Description

Technical Field

[0001] The utility model relates to an asphalt liquid level measuring device. Background Art

[0002] Liquid asphalt, the raw material of waterproofing membrane, needs to be stored in a storage tank. At present, radar level gauges are mostly used to measure the level of liquid asphalt in the storage tank. However, when using the radar probe of the radar level gauge to measure the level of liquid asphalt in the storage tank, the high temperature of asphalt will produce smoke. When the asphalt smoke contacts the radar probe, it will stick to the radar probe, causing the radar level gauge to fail to measure, which will cause the risk of asphalt storage tank overflow. Summary of the invention

[0003] In order to solve the defects of the prior art, the utility model provides an asphalt liquid level measuring device, including: a radar level meter externally connected to the top wall of the storage tank and the radar probe extending into the top of the inner cavity of the storage tank, a vertical protective tube with a top fixedly connected to the inner top wall of the storage tank, surrounding the radar probe and open at the bottom, a closing cover hinged to the bottom end of the protective tube, a torsion spring installed at the hinge and driving the closing cover to tightly close the bottom end of the closed protective tube (the two ends of the torsion spring are respectively fixedly connected to the side wall of the protective tube and the closing cover), a nozzle arranged on the inner wall of the protective tube, an air supply pipe externally connected to the outer wall of the protective tube and connected to the nozzle, and an air supply valve arranged on the air supply pipe.

[0004] Preferably, the air supply pipe passes through the top wall of the storage tank and is connected to an external air supply device.

[0005] Preferably, there are multiple nozzles, and the side wall of the protective tube is provided with an internal air supply channel connecting the air supply pipe with each nozzle.

[0006] Preferably, the plurality of nozzles are evenly distributed along the circumference of the inner wall of the protective tube.

[0007] Preferably, the plurality of nozzles are all arranged on the top of the inner wall of the protective tube.

[0008] Preferably, the plurality of nozzles are all slanted downward and toward the radar probe.

[0009] The advantages and beneficial effects of the utility model are: providing an asphalt level measuring device, which can detect the liquid level of liquid asphalt in a storage tank, and can also protect the radar probe of the radar level meter, and can effectively prevent the smoke generated by the high temperature of asphalt in the storage tank from contacting the radar probe, avoiding the smoke causing measurement failure of the radar level meter, and thus avoiding the risk of asphalt storage tank overflow due to measurement failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0012] The specific technical solutions implemented in this utility model are as follows:

[0013] like Figure 1 As shown, an asphalt level measuring device comprises: a radar level gauge 2 externally connected to the top wall of a storage tank 1 and with a radar probe 21 extending into the top of the inner cavity of the storage tank 1, a vertical protective tube 3 with a top fixedly connected to the inner top wall of the storage tank 1, surrounding the radar probe 21 and open at the bottom, a closing cover 4 hinged to the bottom of the protective tube 3, a torsion spring 5 installed at the hinge and driving the closing cover 4 to tightly close the bottom of the closed protective tube 3 (the two ends of the torsion spring 5 are respectively fixedly connected to the side wall of the protective tube 3 and the closing cover 4), a nozzle 6 arranged on the inner wall of the protective tube 3, an air supply pipe 7 externally connected to the outer wall of the protective tube 3 and communicating with the nozzle 6, an air supply valve 8 arranged on the air supply pipe 7, and an external air supply device 9 connected to the air supply pipe 7 after passing through the top wall of the storage tank 1;

[0014] There are multiple nozzles 6, and the side wall of the protective tube 3 is provided with an internal air supply channel connecting the air supply pipe 7 with each nozzle 6; the multiple nozzles 6 are evenly distributed along the circumference of the inner wall of the protective tube 3; the multiple nozzles 6 are all arranged at the top of the inner wall of the protective tube 3; the multiple nozzles 6 are all inclined downward and toward the radar probe 21.

[0015] The working principle of the utility model asphalt level measuring device includes:

[0016] Liquid asphalt is stored in a storage tank 1, and a radar level meter 2 at the top of the storage tank 1 detects the liquid level of the liquid asphalt in the storage tank 1 regularly or irregularly;

[0017] In normal state (i.e. when the liquid level is not being detected), the closing cover 4 tightly covers the bottom end of the closed protection tube 3 under the action of the torsion spring 5; at this time, the radar probe 21 is completely enclosed in the protection tube 3, which can completely prevent the smoke generated by the high temperature of the asphalt in the storage tank 1 from entering the protection tube 3 and contacting the radar probe 21;

[0018] Each time the liquid level is detected, the air supply valve 8 is opened first, and the external air supply device 9 supplies air to the multiple nozzles 6 through the air supply pipe 7. The multiple nozzles 6 spray air at the same time, which can overcome the torsion force of the torsion spring 5 and completely open the closing cover 4 at the bottom of the protective tube 3, so that the closing cover 4 does not hinder the operation of the radar probe 21; then the radar level meter 2 detects the liquid level of the liquid asphalt in the storage tank 1 when the closing cover 4 is fully opened; in addition, when the closing cover 4 is fully opened, the multiple nozzles 6 continue to spray air obliquely downward toward the radar probe 21 at the same time, and the sprayed gas is finally sprayed out from the bottom of the protective tube 3, which can also effectively prevent the smoke from entering the protective tube 3 and contacting the radar probe 21;

[0019] From the above, it can be seen that the asphalt level measuring device of the utility model can detect the liquid level of liquid asphalt in the storage tank 1, and can also protect the radar probe 21 of the radar level meter 2. It can effectively prevent the smoke generated by the high temperature of asphalt in the storage tank 1 from contacting the radar probe 21, thereby avoiding the smoke from causing measurement failure of the radar level meter 2, and thus avoiding the risk of asphalt storage tank overflow due to measurement failure.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An asphalt level measuring device, characterized in that: include: A radar level gauge connected to the top wall of the storage tank and with the radar probe extending into the top of the inner cavity of the storage tank, a vertical protective tube with the top fixedly connected to the inner top wall of the storage tank, surrounding the radar probe and open at the bottom, a closing cover hinged to the bottom of the protective tube, a torsion spring installed at the hinge and driving the closing cover to tightly close the bottom end of the closed protective tube, a nozzle arranged on the inner wall of the protective tube, an air supply pipe connected to the outer wall of the protective tube and connected to the nozzle, and an air supply valve arranged on the air supply pipe.

2. The asphalt level measuring device according to claim 1, characterized in that: The air supply pipe passes through the top wall of the storage tank and is connected to an external air supply device.

3. The asphalt level measuring device according to claim 1, characterized in that: There are multiple nozzles, and the side wall of the protective tube is provided with an internal air delivery channel which connects the air supply pipe with each nozzle.

4. The asphalt level measuring device according to claim 1, characterized in that: The plurality of nozzles are evenly distributed along the circumference of the inner wall of the protective tube.

5. The asphalt level measuring device according to claim 1, characterized in that: The multiple nozzles are all arranged on the top of the inner wall of the protective tube.

6. The asphalt level measuring device according to claim 1, characterized in that: The plurality of nozzles are all slanted downward and directed toward the radar probe.

Images