Monorail crane tail gas cooling device
By designing a single-rail lift exhaust gas cooling device, using the automatic control of water level and water temperature sensors and solenoid valves, the problem of water level control failure of diesel single-rail lift exhaust gas treatment box is solved, avoiding exhaust over-temperature shutdown failure, improving transportation efficiency and eliminating Safety hazards.
Patent Information
- Application Number
- CN202420086166.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-12
AI Technical Summary
During the transportation process of diesel monorail crane, the water level control mechanism of the exhaust gas treatment box is blocked by wastewater and grease, resulting in the cooling water not being replenished in time, resulting in overheating of exhaust emissions and shutdown failure, affecting production safety.
A single-rail suspension exhaust gas cooling device was designed, including a washing box, a water replenishing tank and an expansion water tank, equipped with a water level sensor, a water temperature sensor and a solenoid valve. Automatic water replenishment and drainage are realized through the PLC logic controller to ensure the recycling of cooling water and avoid the failure of water level control. .
It effectively avoids shutdown and failure caused by exhaust emissions overheating of monorail cranes, improves transportation efficiency, eliminates safety hazards caused by exhaust gas overheating, and ensures the continuity and safety of production.
Smart Images
Figure CN222143816U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diesel monorail cranes, in particular to an exhaust gas cooling device for a monorail crane. Background Art
[0002] Monorail cranes are a new type of underground coal mine transportation equipment and have been widely used in coal mines. During the transportation process of diesel monorail cranes, the exhaust gas generated by them is generally passed into the exhaust gas treatment box for cooling and discharge. At present, the water level control mechanism and water level control valve of the exhaust gas treatment box of the existing diesel monorail crane only use a simple float valve and a liquid level switch. When the float valve is stuck by wastewater grease, the water level switch will also lose its function, causing the water temperature of the exhaust gas treatment box to rise and the water level to drop. The cooling water cannot be replenished in time, causing the diesel monorail crane to shut down due to over-temperature exhaust emissions, resulting in the hydraulic support and other urgent materials cannot be transported in time, affecting production. At the same time, emergency parking in the inclined lane also brings certain safety hazards to the monorail crane transportation operation. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to prevent the monorail crane from stopping.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0005] A monorail tail gas cooling device comprises a water washing box, a water supply tank and an expansion water tank, wherein the water washing box is provided with an air inlet and an air outlet, the water washing box input end is connected to the water supply tank output end, and the water washing box output end is connected to the expansion water tank input end;
[0006] A first water level sensor and a first water temperature sensor are provided in the water washing box, and a first drainage solenoid valve is provided at the output end of the water washing box;
[0007] The output end of the water replenishment tank is provided with a water replenishment solenoid valve;
[0008] A water pump is provided at the input end of the expansion water tank.
[0009] The utility model avoids the over-temperature shutdown failure of the monorail crane during the upward transportation process, improves the transportation efficiency and eliminates the safety hazard caused by the emergency shutdown of the inclined lane due to the over-temperature of the exhaust gas emission.
[0010] Preferably, the first water level sensor includes a first upper water level sensor and a first lower water level sensor, the first upper water level sensor is arranged above the inside of the washing tank, and the first lower water level sensor is arranged below the inside of the washing tank.
[0011] Preferably, a pressure sensor is also provided in the water washing box.
[0012] Preferably, the air outlet of the water washing box is provided with an exhaust fire barrier.
[0013] Preferably, a second water level sensor is also provided in the water replenishing tank.
[0014] Preferably, a third water level sensor is further provided in the expansion water tank.
[0015] Preferably, the output end of the expansion water tank is also connected to the water replenishment tank.
[0016] Preferably, a second drainage solenoid valve is further provided at the output end of the expansion water tank.
[0017] Preferably, a second water temperature sensor is also provided in the expansion water tank.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] The utility model avoids the over-temperature shutdown failure of the monorail crane during the upward transportation process, improves the transportation efficiency and eliminates the safety hazard caused by the emergency shutdown of the inclined lane due to the over-temperature of the exhaust gas emission. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION
[0021] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further explained in conjunction with the drawings in the specification.
[0022] In this application, 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 a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection 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 this application can be understood according to specific circumstances.
[0023] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically limited.
[0024] See also Figure 1The present embodiment discloses a monorail tail gas cooling device, comprising a water washing box 1, a water supply tank 2, and an expansion water tank 3. The water washing box 1 is provided with an air inlet 101 and an air outlet 102. The air inlet 101 is used for the monorail tail gas to enter. The air outlet 102 is also provided with an exhaust fire barrier 4 for reducing the exhaust gas temperature. The input end of the water washing box 1 is connected to the output end of the water supply tank 2, the output end of the water washing box 1 is connected to the input end of the expansion water tank 3, and the output end of the expansion water tank 3 is also connected to the water supply tank 2.
[0025] The water washing tank 1 is provided with a first water level sensor and a first water temperature sensor 5 for detecting the water temperature in the water washing tank 1. The first water level sensor includes a first upper water level sensor 6 and a first lower water level sensor 7. The first upper water level sensor 6 is arranged above the inside of the water washing tank 1, and the first lower water level sensor 7 is arranged below the inside of the water washing tank 1, and are respectively used to detect the highest water level and the lowest water level in the water washing tank 1; the output end of the water washing tank 1 is provided with a first drain solenoid valve 8 for draining the water in the water washing tank 1; the water washing tank 1 is also provided with a pressure sensor 9 for detecting the pressure in the water washing tank 1.
[0026] A second water level sensor 10 is also provided in the water replenishment tank 2 , and a water replenishment solenoid valve 11 is provided at the output end of the water replenishment tank 2 .
[0027] The expansion water tank 3 is also provided with a third water level sensor 12 and a second water temperature sensor 13. The input end of the expansion water tank 3 is provided with a water pump 14. The first drainage solenoid valve 8 and the water pump 14 are opened to pump the water in the washing tank 1 into the expansion water tank 3. The output end of the expansion water tank 3 is also provided with a second drainage solenoid valve 15 for discharging the cooled water in the expansion water tank 3 into the water supply tank 2.
[0028] It should be noted that the present embodiment also includes a PLC logic controller, which is used to electrically connect the above-mentioned water level sensor, temperature sensor, pressure sensor and solenoid valve, and can control the operation of the above-mentioned water level sensor, temperature sensor, pressure sensor and solenoid valve.
[0029] The working principle of this embodiment is:
[0030] The tail gas from the monorail enters the water washing tank 1 through the air inlet 101. When the first lower water level sensor 7 in the water washing tank 1 detects that the water level drops to the lower limit, the water replenishment solenoid valve 11 at the output end of the water replenishment tank 2 opens, and water is replenished from the water replenishment tank 2 to the water washing tank 1. When the first upper water level sensor 6 in the water washing tank 1 detects that the water level reaches the upper limit, the water replenishment solenoid valve 11 is closed. In addition, when the second water level sensor 10 in the water replenishment tank 2 detects that its own water level reaches the lower limit, the water replenishment solenoid valve 11 will also be closed to stop supplying water to the water washing tank 1.
[0031] When the first water temperature sensor 5 in the washing tank 1 detects that the water temperature reaches 65°C, the first drainage solenoid valve 8 opens to discharge the high-temperature water, and pumps the high-temperature water into the expansion water tank 3 through the water pump 14, and automatically closes after 2 minutes. At the same time, the water replenishment solenoid valve 11 opens to add cooling water to the upper limit of the water level of the washing tank 1. If the water temperature in the washing tank 1 is always above 65°C, this action is always cyclically opened, and this action is not performed if it is below 65°C.
[0032] When the water level in the water replenishment tank 2 is low and the water level in the water washing tank 1 is low, the drainage action is not performed and the PLC logic controller issues an alarm to remind the monorail crane operator to add water.
[0033] When the third water level sensor 12 in the expansion water tank 3 detects that the water level reaches the upper limit, the first drainage solenoid valve 8 and the water pump 14 are closed, and the drainage of the washing tank 1 is stopped.
[0034] When the pressure sensor 9 in the water washing box 1 detects that the internal pressure is too high, the PLC logic controller sends out an alarm to remind the monorail crane driver to check and clean the exhaust fire barrier 4.
[0035] When the second water temperature sensor 13 in the expansion water tank 3 detects that the temperature drops to a level that can meet the water replenishment temperature in the replenishment tank 2, the second drain solenoid valve 15 on the output end of the expansion water tank 3 opens to discharge the cooled water in the expansion water tank 3 into the replenishment tank 2 for recycling.
[0036] The exhaust gas cooling device of this embodiment can effectively prevent the water level control mechanism and the water level element of the exhaust gas treatment box from being blocked by wastewater grease during the operation of the monorail crane, resulting in exhaust gas emission over-temperature failure due to failure to replenish cooling water in time, and protection failure due to failure to shut down in time when the water level reaches the warning value. It avoids the monorail crane from shutting down due to over-temperature during the upward operation, improves the operation efficiency, and eliminates the safety hazard caused by emergency shutdown in the inclined lane due to exhaust gas emission over-temperature.
[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.
[0038] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.
Claims
1. A monorail tail gas cooling device, characterized in that: It includes a water washing tank, a water replenishing tank, and an expansion water tank. The water washing tank is provided with an air inlet and an air outlet. The input end of the water washing tank is connected to the output end of the water replenishing tank, and the output end of the water washing tank is connected to the input end of the expansion water tank. A first water level sensor and a first water temperature sensor are provided in the water washing box, and a first drainage solenoid valve is provided at the output end of the water washing box; The output end of the water replenishment tank is provided with a water replenishment solenoid valve; A water pump is provided at the input end of the expansion water tank.
2. The monorail tail gas cooling device according to claim 1, characterized in that: The first water level sensor includes a first upper water level sensor and a first lower water level sensor. The first upper water level sensor is arranged above the inside of the washing box, and the first lower water level sensor is arranged below the inside of the washing box.
3. The monorail tail gas cooling device according to claim 1, characterized in that: A pressure sensor is also provided in the water washing box.
4. The monorail tail gas cooling device according to claim 1, characterized in that: The air outlet of the water washing box is provided with an exhaust fire barrier.
5. The monorail tail gas cooling device according to claim 1, characterized in that: A second water level sensor is also provided in the water replenishing tank.
6. The monorail tail gas cooling device according to claim 1, characterized in that: A third water level sensor is also arranged in the expansion water tank.
7. The monorail tail gas cooling device according to claim 1, characterized in that: The output end of the expansion water tank is also connected to the water replenishment tank.
8. The monorail tail gas cooling device according to claim 7, characterized in that: The output end of the expansion water tank is also provided with a second drainage solenoid valve.
9. The monorail tail gas cooling device according to claim 7, characterized in that: A second water temperature sensor is also arranged in the expansion water tank.