Cooling and heat insulation device for launder laser range finder

Abstract

The utility model discloses a cooling and heat insulation device for a launder laser range finder, and belongs to a cooling and heat insulation device for a laser range finder. Comprising a frame body, a heat shield and a vortex cooler, the frame body is erected above a launder, the heat shield is arranged on the frame body, and a distance measuring hole with a downward opening is formed in the lower end face of the heat shield; a laser range finder is installed on the frame body, located in the heat insulation cover and used for measuring the distance through the distance measuring hole. The vortex cooler is arranged on the heat shield, a cold air outlet of the vortex cooler is led into the heat shield, and a hot air outlet of the vortex cooler is located at the heat shield. The technical problems that a traditional axial flow fan cannot meet the use requirement when reducing the temperature of a laser range finder, and measurement is unstable and invalid due to high temperature of the laser range finder are solved.

Description

Technical Field

[0001] The utility model relates to a cooling and heat-insulating device for a laser rangefinder, in particular to a cooling and heat-insulating device for a flow channel laser rangefinder. Background Art

[0002] The laser rangefinder calculates the distance between the target object and the sensor by measuring the time difference between the emission and return of the laser pulse. Specifically, it will emit a short pulse of laser to the target object, record the time required for the laser to be reflected from the emission to the reflection, and then calculate the distance value based on the speed of light and the time difference. When the laser rangefinder is in use, its own temperature exceeds 45°C, and the measurement will be unstable, and it will fail when its own temperature exceeds 50°C. The laser rangefinder is vertically installed 1.6 meters above the launder behind the melting furnace, about 2 meters away from the melting furnace, with a poor use environment and high on-site temperature. During casting, the laser rangefinder detects the level of aluminum liquid in the launder. The high-temperature aluminum liquid in the launder will form a high-temperature hot air flow, causing the temperature of the laser rangefinder above to rise to above 50°C, causing the laser rangefinder to fail. If the laser rangefinder fails, if the furnace is not manually controlled to tilt in time, the furnace will directly tilt back, resulting in casting failure. The traditional cooling method is to use an axial flow fan installed next to the laser rangefinder, and the high-temperature aluminum liquid will form a high-temperature hot air flow to blow diagonally downward, so that the high-temperature hot air flow cannot contact the laser rangefinder; at the same time, compressed air is used to cool the laser rangefinder. In order to prevent dust or debris from falling on the surface of the aluminum liquid in the flow trough, a high-power axial flow fan cannot be used. The small air volume cannot completely blow away the hot air flow, and the effect is not very good; at the same time, due to the high ambient temperature on site, the temperature of the compressed air is consistent with the current temperature, and the heat dissipation effect of the laser rangefinder is not good. Therefore, the laser rangefinder will still have unstable or failed detection of the liquid level during casting, resulting in casting failure. Therefore, it is necessary to improve the cooling and heat insulation device of the laser rangefinder to meet the use. Summary of the invention

[0003] The purpose of the utility model is to provide a cooling and heat insulation device for a flow trough laser rangefinder in view of the above problems, so as to solve the technical problem that the traditional axial flow fan cannot reduce the temperature of the laser rangefinder, resulting in unstable measurement and failure caused by the high temperature of the optical rangefinder.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] A cooling and heat-insulating device for a flow trough laser rangefinder comprises a frame, a heat-insulating cover and an eddy current cooler, wherein the frame is erected above the flow trough, the heat-insulating cover is mounted on the frame, and a downwardly opening distance measuring hole is arranged on the lower end surface of the heat-insulating cover; a laser rangefinder is mounted on the frame, and the laser rangefinder is located in the heat-insulating cover, and the laser rangefinder measures distance through the distance measuring hole; the eddy current cooler is mounted on the heat-insulating cover, a cold air outlet of the eddy current cooler leads into the heat-insulating cover, and a hot air outlet of the eddy current cooler is located at the heat-insulating cover.

[0006] Furthermore, it also includes a temperature measuring device, which includes a temperature measuring probe and a controller. The temperature measuring probe is installed on the laser rangefinder and connected to the controller. The controller is also connected to the eddy current cooler. The controller controls the start and stop of the eddy current cooler according to the detected temperature of the temperature measuring probe.

[0007] Furthermore, the controller controls the start and stop of the vortex cooler through a solenoid valve.

[0008] Furthermore, the heat insulation cover is in an inverted cone shape, and a heat reflecting surface is provided on the lower end surface of the heat insulation cover.

[0009] Furthermore, the diameter of the ranging hole is 140-160 mm, and the ranging hole is 230-400 mm away from the lower end of the laser rangefinder.

[0010] Furthermore, the heat insulation cover is made of heat insulation material.

[0011] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The utility model adopts a vortex cooler for cooling, and can use the original compressed gas as a power source. The vortex cooler can convert the compressed gas into low-temperature gas and high-temperature gas, and use the low-temperature gas to cool the laser rangefinder. Based on the above, the traditional axial flow fan of the utility model cannot meet the requirements of use to reduce the temperature of the laser rangefinder, resulting in technical problems such as unstable measurement and failure caused by the high temperature of the optical rangefinder.

[0013] 2. The utility model is provided with a temperature measuring device to control the start and stop of the vortex cooler according to the detected temperature, thereby reducing the use of high-pressure gas and saving the power consumption of compressed gas; by providing a heat reflecting surface to reflect heat, and by making the heat insulation cover made of heat insulation material, the speed at which the heat insulation cover and the internal laser rangefinder are heated can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 This is a sectional three-dimensional structural diagram of the utility model;

[0016] Figure 3 The utility model is a circuit diagram of the temperature measuring device.

[0017] In the accompanying drawings, 1-frame, 2-heat insulation cover, 3-vortex cooler, 4-laser rangefinder, 5-range measuring hole, 6-temperature measuring probe, 7-controller, 8-solenoid valve, 9-heat reflecting surface. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below with reference to the accompanying drawings.

[0019] In the description of the present invention, it should be understood that the terms "center", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] See also Figures 1 to 3A cooling and heat-insulating device for a flow trough laser rangefinder 4 comprises a frame 1, a heat-insulating cover 2 and an eddy current cooler 3. The frame 1 is erected above the flow trough, the heat-insulating cover 2 is mounted on the frame 1, and a distance-measuring hole 5 opening downward is arranged on the lower end surface of the heat-insulating cover 2; a laser rangefinder 4 is mounted on the frame 1, and the laser rangefinder 4 is located in the heat-insulating cover 2, and the laser rangefinder 4 measures distance through the distance-measuring hole 5; the eddy current cooler 3 is mounted on the heat-insulating cover 2, a cold air outlet of the eddy current cooler 3 passes into the heat-insulating cover 2, and a hot air outlet of the eddy current cooler 3 is located at the heat-insulating cover 2.

[0023] In this embodiment, a temperature measuring device is also included. The temperature measuring device includes a temperature measuring probe 6 and a controller 7. The temperature measuring probe 6 is installed on the laser rangefinder 4 and connected to the controller 7. The controller 7 is also connected to the vortex cooler 3. The controller 7 controls the start and stop of the vortex cooler 3 according to the detected temperature of the temperature measuring probe 6. The controller 7 controls the start and stop of the vortex cooler 3 through the solenoid valve 8. By providing a temperature measuring device, the start and stop of the vortex cooler 3 can be controlled according to the detected temperature, thereby reducing the use of high-pressure gas and saving the power consumption of compressed gas. Specifically, when the temperature probe detects that the temperature of the laser rangefinder 4 is lower than 25°C, the compressed air is disconnected and the laser rangefinder 4 is no longer cooled; when the temperature probe detects that the temperature of the laser rangefinder 4 is higher than 35°C, the compressed air is turned on to cool the laser rangefinder 4, that is, the temperature control of the laser rangefinder 425-35°C is achieved.

[0024] In this embodiment, the heat shield 2 is in an inverted cone shape, and a heat reflecting surface 9 is provided on the lower end surface of the heat shield 2. The diameter of the distance measuring hole 5 is 140-160 mm, and the distance measuring hole 5 is 230-400 mm from the lower end of the laser rangefinder 4. The heat shield 2 is made of a heat insulating material, and specifically, the heat insulating material can be a heat insulating fiberboard, and the heat reflecting surface 9 is a reflective aluminum sheet. By providing the heat reflecting surface 9, heat can be reflected, and by making the heat shield 2 made of a heat insulating material, the speed at which the heat shield 2 and the internal laser rangefinder 4 are heated can be reduced.

[0025] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A cooling and heat insulation device for a flow trough laser rangefinder, characterized in that: The invention comprises a frame, a heat shield and a vortex cooler, wherein the frame is erected above the flow trough, the heat shield is mounted on the frame, and a downwardly opening distance measuring hole is arranged on the lower end surface of the heat shield; a laser distance measuring instrument is installed on the frame, and the laser distance measuring instrument is located in the heat shield, and the laser distance measuring instrument measures distance through the distance measuring hole; the vortex cooler is mounted on the heat shield, the cold air outlet of the vortex cooler leads into the heat shield, and the hot air outlet of the vortex cooler is located at the heat shield.

2. A cooling and heat-insulating device for a flow trough laser rangefinder according to claim 1, characterized in that: It also includes a temperature measuring device, which includes a temperature measuring probe and a controller. The temperature measuring probe is installed on the laser rangefinder and connected to the controller. The controller is also connected to the eddy current cooler. The controller controls the start and stop of the eddy current cooler according to the detected temperature of the temperature measuring probe.

3. A cooling and heat insulation device for a flow trough laser rangefinder according to claim 2, characterized in that: The controller controls the start and stop of the vortex cooler through a solenoid valve.

4. A cooling and heat insulation device for a flow trough laser rangefinder according to claim 1, characterized in that: The heat insulation cover is in an inverted cone shape, and a heat reflecting surface is arranged on the lower end surface of the heat insulation cover.

5. The cooling and heat insulation device for a flow trough laser rangefinder according to claim 1, characterized in that: The diameter of the distance measuring hole is 140-160 mm, and the distance between the distance measuring hole and the lower end of the laser rangefinder is 230-400 mm.

6. The cooling and heat insulation device for a flow trough laser rangefinder according to claim 1, characterized in that: The heat insulation cover is made of heat insulation material.

Images