Auxiliary drainage device for oil-water mixture in container
By using a drainage auxiliary device with a floating body and an alarm in the sludge tank of the multi-functional cleaning truck, the problem of the oil-water interface being difficult to distinguish is solved, achieving automatic reminders and efficient drainage, reducing labor costs and environmental risks.
Patent Information
- Application Number
- CN202520556364.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing multi-functional cleaning trucks cannot accurately distinguish the oil-water interface in their sludge tanks, making it difficult to control water discharge, which can easily lead to oil leaks and environmental pollution. Furthermore, the equipment is costly to modify and complex to maintain.
Design a drainage auxiliary device that includes a float and an alarm. The float consists of a buoy, a counterweight, and a waterproof and explosion-proof proximity switch. Its density is between that of oil and water. It is used to automatically detect the oil-water interface and trigger the alarm to remind staff.
It achieves automatic reminders when the drainage of oil-water mixtures is nearing completion, reducing labor costs, improving work efficiency, avoiding oil leaks and environmental pollution caused by misoperation, and the device has a simple structure, low cost, and is easy to maintain.
Smart Images
Figure CN223891661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level detection technology, and in particular to a drainage auxiliary device for oil-water mixtures in containers. Background Technology
[0002] As a crucial link connecting the world, the civil aviation industry is one of the nation's important strategic industries, and its safety and efficiency have a direct and significant impact on the country's image and economic development. Aviation fuel, as the power source for civil aviation flights, is undeniably important. In civil aviation operations, aircraft refueling services are a critical link, and fuel quality directly affects aircraft flight safety and flight operation order.
[0003] In civil aviation operations, to ensure the quality of aircraft fuel, regular inspections and maintenance of refueling systems are necessary, including fuel quality checks on facilities such as refueling hydrants. When performing fuel quality checks, multi-functional cleaning vehicles may take fuel samples from refueling hydrants and other locations for testing. If impurities such as water are found in the samples, these samples containing impurities may be collected in waste fuel tanks. Because water and other impurities in fuel can affect the performance of aircraft fuel and pose a threat to flight safety, these fuel samples that may affect fuel quality need to be properly disposed of. Waste fuel tanks are containers used to temporarily store these fuel samples and other substances.
[0004] After a period of settling, the oil-water mixture in the sludge tank will automatically separate into layers due to the difference in specific gravity between oil and water. At this point, the water can be drained through the outlet at the bottom of the tank. However, existing multi-functional cleaning trucks lack external viewing devices or oil-water interface displays for their sludge tanks. This makes it impossible to distinguish the oil-water interface when the mixture is mixed, hindering effective control of water discharge. Drivers often rely on experience, which can lead to the discharge of oily water, potentially causing oil leaks and environmental pollution. Each water discharge operation requires preparation for oil recovery and staff monitoring to handle any potential spills, significantly reducing efficiency and increasing labor costs.
[0005] While installing a viewing mirror or water level gauge on the sludge tank of a multi-functional cleaning truck can help observe the oil-water interface, this method has problems such as requiring modification of the existing sludge tank, high equipment modification costs, and complex maintenance. Utility Model Content
[0006] The purpose of this invention is to provide an auxiliary device for draining oil-water mixtures in containers, so as to solve the problems existing in the prior art. It can automatically remind workers when the drainage of oil-water mixtures in containers is nearing completion, thereby reducing labor costs, improving work efficiency, and avoiding the discharge of oily wastewater that pollutes the environment due to employee misjudgment.
[0007] To achieve the above objectives, this utility model provides the following solution:
[0008] This utility model provides a drainage auxiliary device for oil-water mixtures in a container, comprising:
[0009] A floating body, comprising a buoy, a counterweight disposed within the buoy, and a waterproof and explosion-proof proximity switch located at the bottom end of the buoy and fixedly connected to the buoy, wherein the detection end of the waterproof and explosion-proof proximity switch is located outside the buoy and faces downwards, and the buoy is sealed; the average density of the floating body is greater than the density of oil in the oil-water mixture to be detected and less than the density of water in the oil-water mixture to be detected;
[0010] An alarm is provided, wherein the waterproof and explosion-proof proximity switch is connected to the alarm and, when triggered, enables the alarm to emit an alarm signal.
[0011] Preferably, the counterweight comprises a plurality of steel balls.
[0012] Preferably, the float further includes a pull ring and a suspension rope connected to the pull ring at one end. The pull ring is located above the float and is fixed to the float. The suspension rope is used by the user to pull the float.
[0013] Preferably, the waterproof and explosion-proof proximity switch is located inside the float, and the outer wall of the waterproof and explosion-proof proximity switch is sealed to the float.
[0014] Preferably, the waterproof and explosion-proof proximity switch is connected to the alarm signal via a wire, the wire passes through the float, and the outer wall of the wire is sealed to the float.
[0015] Preferably, the float is made of stainless steel, and the outer wall of the float is polished to a mirror finish, so that the outer wall of the float can reflect light.
[0016] Preferably, the alarm is an audible alarm.
[0017] Preferably, the pull ring is made of stainless steel and is welded to the float.
[0018] Preferably, the suspension rope is made of polytetrafluoroethylene.
[0019] Preferably, the alarm is located outside the container.
[0020] The present invention achieves the following technical advantages over the prior art:
[0021] This utility model discloses an auxiliary device for draining oil-water mixtures from containers. By setting up a floating body (including a float, a counterweight, and a waterproof and explosion-proof proximity switch) and an alarm, when the oil-water mixture in the container is drained, the floating body sinks after the water is drained because the average density of the floating body is greater than the density of oil but less than the density of water. This triggers the waterproof and explosion-proof proximity switch, causing the alarm to sound an alarm signal. This automatically reminds the staff that the drainage is nearing completion, eliminating the need for staff to constantly monitor the drainage progress, reducing labor costs, improving work efficiency, and preventing staff from misjudging and causing oily wastewater to be discharged and polluting the environment.
[0022] Furthermore, existing technologies cannot accurately distinguish the oil-water interface, making it difficult to effectively control water discharge. This can easily lead to the discharge of oily water, causing oil leaks and environmental pollution. This device can accurately indicate when drainage is complete, avoiding the discharge of oily water due to misoperation, thereby reducing the risk of oil leaks and environmental pollution.
[0023] Furthermore, compared to adding a sight glass or water level gauge to the sludge tank of a multi-functional cleaning vehicle (which involves high equipment modification costs and complex maintenance), this device has a relatively simple structure, consisting only of a floating body and an alarm, which is less expensive and does not require complex modifications to the container, thus reducing equipment modification costs and maintenance difficulties. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of the drainage auxiliary device for oil-water mixture in a container according to the present invention;
[0026] In the diagram: 100, auxiliary device for draining oil-water mixture in container; 1, float; 2, counterweight; 3, waterproof and explosion-proof proximity switch; 4, wire; 5, pull ring; 6, suspension rope; 7, alarm. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] The purpose of this invention is to provide an auxiliary device for draining oil-water mixtures in containers, so as to solve the problems existing in the prior art. It can automatically remind workers when the drainage of oil-water mixtures in containers is nearing completion, thereby reducing labor costs, improving work efficiency, and avoiding the discharge of oily wastewater that pollutes the environment due to employee misjudgment.
[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0030] like Figure 1 As shown, this embodiment provides a drainage auxiliary device 100 for draining oil-water mixture in a container, comprising:
[0031] The floating body includes a float 1, a counterweight 2 disposed inside the float 1, and a waterproof and explosion-proof proximity switch 3 located at the bottom of the float 1 and fixedly connected to the float 1. The detection end of the waterproof and explosion-proof proximity switch 3 is located outside the float 1 and faces downward. The float 1 is sealed. The average density of the floating body is greater than the density of oil in the oil-water mixture to be detected and less than the density of water in the oil-water mixture to be detected.
[0032] Alarm 7, waterproof and explosion-proof proximity switch 3 is connected to alarm 7 by signal. When waterproof and explosion-proof proximity switch 3 is triggered, alarm 7 can emit an alarm signal.
[0033] The waterproof and explosion-proof proximity switch 3 has waterproof and explosion-proof functions, making it suitable for use in environments where oil and water mixtures may exist. This improves the safety and reliability of the device and avoids safety hazards caused by electrical faults.
[0034] In the optional embodiments of this example, a preferred embodiment includes a counterweight 2 consisting of several steel balls. By using several steel balls as counterweight 2, the average density of the float can be precisely adjusted. Since the density of steel balls is relatively fixed, according to Archimedes' principle, given the volume and other parameters of the float 1, by increasing or decreasing the number of steel balls, the average density of the float can be precisely controlled within a range greater than the density of oil in the oil-water mixture to be detected but less than the density of water. This ensures that the float can maintain a suitable floating or sinking state in the oil-water mixture according to changes in the oil-water interface, providing a basis for accurate detection and alarm triggering. Oil-water mixtures from different sources and with different compositions may have varying densities of oil and water. By appropriately setting the number of steel balls, the average density of the float can be changed, resulting in greater adaptability and maintaining good performance in various complex oil-water mixing scenarios.
[0035] In the optional embodiments of this example, the preferred option is that the float also includes a pull ring 5 and a suspension rope 6 connected to the pull ring 5 at one end. The pull ring 5 is located above the float 1 and is fixed to the float 1. The suspension rope 6 is used by the user to pull the float. The user can pull the float by the suspension rope 6, which facilitates the placement, adjustment and removal of the device, and improves the convenience of use.
[0036] In the optional scheme of this embodiment, it is more preferred that the waterproof and explosion-proof proximity switch 3 is located inside the float 1, and the outer wall of the waterproof and explosion-proof proximity switch 3 is sealed to the float 1; the waterproof and explosion-proof proximity switch 3 is connected to the alarm 7 via a wire 4, the wire 4 passes through the float 1, and the outer wall of the wire 4 is sealed to the float 1; by making the waterproof and explosion-proof proximity switch 3 and the wire 4 respectively sealed to the float 1, the airtightness of the float 1 is ensured, and the oil-water mixture is prevented from entering the float 1 and affecting the average density of the float.
[0037] In the optional solutions of this embodiment, it is more preferred that the float 1 is made of stainless steel and the outer wall of the float 1 is polished to a mirror finish. The outer wall of the float 1 can reflect light, which on the one hand enhances the strength and corrosion resistance of the float 1 and extends its service life; on the other hand, by shining a light source such as a flashlight on the float 1, the position of the float 1 can be easily observed, thereby indirectly understanding the condition of the oil-water interface.
[0038] In the optional embodiments of this example, a preferred method is to use an audible alarm 7. The pull ring 5 is made of stainless steel and is welded to the float 1 to ensure a secure connection. The suspension rope 6 is made of polytetrafluoroethylene (PTFE), which has good chemical stability and corrosion resistance, and can adapt to the environment of oil-water mixtures inside the container, thus improving the overall applicability and service life of the device.
[0039] In the optional solutions of this embodiment, it is more preferred that the alarm 7 is set outside the container; the alarm 7 set outside the container is more easily perceived by the staff. Whether it is the alarm sound emitted by the sound alarm 7 or the light signal emitted by other types of alarm 7, it can be received more clearly by the staff outside the container and will not be blocked or weakened by obstacles such as the container wall, ensuring that the staff can obtain the reminder information that the drainage is completed in a timely and accurate manner.
[0040] The specific usage method of the drainage auxiliary device 100 for the oil-water mixture in the container in this embodiment is as follows:
[0041] First, fix the hoisting rope 6, which is connected to the pull ring 5 at one end, in a suitable position. The pull ring 5 is located above the float 1 and welded to the float 1. Since the float 1 is made of stainless steel and is sealed, it contains a counterweight 2 composed of several steel balls. The bottom end is fixed with a waterproof and explosion-proof proximity switch 3, with its detection end facing downwards. Slowly place the float into a container containing an oil-water mixture. Because the average density of the float is greater than the density of oil but less than the density of water, after the oil-water mixture settles and separates, the float floats at the oil-water interface. When drainage begins, the float sinks along with the water level. When the water is about to be drained, the float sinks to trigger the waterproof and explosion-proof proximity switch 3. The switch is connected to the sound alarm 7 located outside the container. The alarm 7 then emits an alarm signal to remind the staff that drainage is complete. The staff can then remove the float from the container using the hoisting rope 6.
[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A device for draining oil-water mixture from a container, characterized in that, include: A floating body, comprising a buoy, a counterweight disposed within the buoy, and a waterproof and explosion-proof proximity switch located at the bottom end of the buoy and fixedly connected to the buoy, wherein the detection end of the waterproof and explosion-proof proximity switch is located outside the buoy and faces downwards, and the buoy is sealed; the average density of the floating body is greater than the density of oil in the oil-water mixture to be detected and less than the density of water in the oil-water mixture to be detected; An alarm is provided, wherein the waterproof and explosion-proof proximity switch is connected to the alarm and, when triggered, enables the alarm to emit an alarm signal.
2. The auxiliary device for draining oil-water mixture in a container according to claim 1, characterized in that: The counterweight consists of several steel balls.
3. The auxiliary device for draining oil-water mixture in a container according to claim 1, characterized in that: The float also includes a pull ring and a suspension rope connected to the pull ring at one end. The pull ring is located above the float and is fixed to the float. The suspension rope is used by the user to pull the float.
4. The auxiliary device for draining oil-water mixture in a container according to claim 1, characterized in that: The waterproof and explosion-proof proximity switch is located inside the float, and the outer wall of the waterproof and explosion-proof proximity switch is sealed to the float.
5. The auxiliary device for draining oil-water mixture in a container according to claim 4, characterized in that: The waterproof and explosion-proof proximity switch is connected to the alarm signal via a wire, which passes through the float and is sealed to the float.
6. The auxiliary device for draining oil-water mixture in a container according to claim 1, characterized in that: The float is made of stainless steel, and its outer wall is polished to a mirror finish, allowing it to reflect light.
7. The auxiliary device for draining oil-water mixture in a container according to claim 1, characterized in that: The alarm is an audible alarm.
8. The auxiliary device for draining oil-water mixture in a container according to claim 3, characterized in that: The pull ring is made of stainless steel and is welded to the float.
9. The auxiliary device for draining oil-water mixture in a container according to claim 3, characterized in that: The suspension rope is made of polytetrafluoroethylene.
10. The auxiliary device for draining oil-water mixture in a container according to claim 1, characterized in that: The alarm is located outside the container.