Oil-water separation intelligent system of passenger conveying device and monitoring method

Abstract

The invention discloses an intelligent oil-water separation system of a passenger conveying device, comprising: an oil-water separation device comprising a buffer chamber, a still water chamber and a water storage chamber; the oil-water separation device is used for layering oil and water by buffering and standing an oil-water mixed solution, and the layered water enters the water storage chamber and is discharged through a first water outlet in the water storage chamber; the water replenishing chamber is used for receiving the water discharged from the first water outlet and reversely replenishing the water liquid to the water storage chamber under a preset condition, and the rest water liquid is discharged through a second water outlet in the water replenishing chamber; and the oil storage chamber is used for storing the oil separated from the still water chamber. The technical problems that in an oil-water separation device in the prior art, oil liquid needs to be cleaned irregularly and is inconvenient to clean, and water liquid needs to be manually supplemented irregularly are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and particularly to an intelligent oil-water separation system for a passenger conveying device. The present invention also relates to a monitoring method for an intelligent oil-water separation system of a passenger conveying device. Background Art

[0002] Generally, lubricating oil needs to be added to the transmission components of escalators and moving walks during normal operation. Under outdoor conditions, rainwater flows into the interior of escalators and moving walks after being washed and combines with the lubricating oil on the components, forming an oil-water mixture. If the generated oil-water mixture is directly discharged without treatment, it will cause serious pollution to the environment. Therefore, it is necessary to effectively separate the oil-water mixture in escalators and moving walks and discharge the water without oil or with an oil content meeting national and local sewage discharge standards into the municipal drainage system after treatment.

[0003] Currently, although the oil-water separation device has become a standard configuration for outdoor escalators and moving walks in the industry, common oil-water separation devices have technical problems such as complex structure, large volume, poor oil-water separation effect, or insufficient flow processing capacity to meet local rainfall requirements. More critically, in order to avoid the leakage and misdischarge of oil pollution, the requirements for the daily maintenance of existing oil-water separation devices are too high. Before the oil level reaches the storage upper limit of the oil-water separation device, manual oil scooping is required, and before the water level is lower than the lower limit of the oil-water separation device, manual water addition is required. Moreover, different oil consumption and precipitation amounts make it impossible for maintenance personnel to perform operations such as oil scooping and water addition regularly and at fixed times.

[0004] In the patent document CN202311425497.7, the structural design has high innovation. The split structure ensures that maintenance work such as oil scooping and cleaning is very convenient during use, and it has a strong flow processing capacity. At the same time, the oil-water separation device is provided with an intelligent monitoring system, which can real-time monitor the height of the oil and water in the device, and has very practical guiding significance for daily maintenance. However, there are still some deficiencies in actual use: 1. When the intelligent monitoring system detects an abnormal liquid level in the static water chamber, the system only issues corresponding instructions and fault displays, and the subsequent oil cleaning work still needs to be completed by maintenance personnel; 2. When the intelligent monitoring system detects an abnormal liquid level in the water storage chamber, the system only issues corresponding instructions and fault displays, and the subsequent work of adding clean water also needs to be completed by maintenance personnel. It can be seen that the daily maintenance work such as oil cleaning and adding clean water of the oil-water separation device still needs to be manually completed by maintenance personnel, so the negligence or improper operation of maintenance personnel and other behaviors still may lead to the risk of oil pollution leakage and misdischarge.

[0005] Considering that the oil-water separation device is generally installed at the lowest part under the escalator or moving walkway, and is located between the steel bottom plate of the truss and the civil engineering pit, the installation position is concealed, which makes it very difficult for maintenance personnel to conduct daily maintenance inspections and often leads to neglect. It can be imagined that in the case of long-term need for manual and irregular cleaning and maintenance, there will inevitably be phenomena such as oil leakage and misdischarge due to the negligence or improper operation of the cleaning and maintenance personnel. Therefore, it is very necessary to design an oil-water separation device with excellent performance, stability, reliability, and less or no maintenance. Summary of the Invention

[0006] The technical problem to be solved by the present invention is the technical problems of the existing oil-water separation device, such as the need for irregular cleaning of the oil liquid and inconvenient cleaning, and the need for manual and irregular replenishment of the water liquid.

[0007] To solve the above technical problems, the intelligent oil-water separation system of the passenger conveyor provided by the present invention includes:

[0008] An oil-water separation device, including a buffer chamber, a still water chamber, and a water storage chamber; the oil-water separation device is used to separate the oil and water by buffering and standing the oil-water mixture, and the separated water enters the water storage chamber and is discharged through the first water outlet in the water storage chamber;

[0009] A water replenishment chamber, used to receive the water discharged from the first water outlet and replenish the water liquid back to the water storage chamber under preset conditions, and the remaining water liquid is discharged through the second water outlet in the water replenishment chamber;

[0010] An oil storage chamber, used to store the oil liquid separated from the still water chamber.

[0011] Preferably, a water pump and a water conduit are arranged in the water replenishment chamber, and the water conduit is arranged between the water replenishment chamber and the water storage chamber through the first water outlet to realize unidirectional conduction from the water replenishment chamber to the water storage chamber. When the water liquid height in the water storage chamber is lower than the preset threshold h, the water pump replenishes the water liquid stored in the water replenishment chamber back to the water storage chamber.

[0012] Preferably, an oil pump and an oil conduit are arranged in the oil storage chamber, and the oil conduit is arranged between the still water chamber and the oil storage chamber to realize unidirectional conduction from the still water chamber to the oil storage chamber. When the oil storage height in the still water chamber is higher than the preset threshold H, the oil pump discharges the oil liquid separated from the still water chamber to the oil storage chamber.

[0013] Preferably, a first liquid level sensor is arranged in the water storage chamber to monitor the liquid level height of the water storage chamber; a second liquid level sensor is arranged in the still water chamber to monitor the liquid level height of the still water chamber.

[0014] Preferably, the intelligent oil-water separation system is fixed at the opening of the steel bottom plate of the truss of the passenger conveyor and is located between the steel bottom plate of the truss and the civil engineering pit; the steel bottom plate of the truss is fixed at the bottom of the truss.

[0015] A monitoring method for the oil-water separation intelligent system of a passenger conveyor, which starts the automatic oil drainage and automatic water replenishment programs according to the liquid level heights of the still water chamber and the water storage chamber of the oil-water separation intelligent system. The oil-water separation intelligent system is the oil-water separation intelligent system of the passenger conveyor described in claim 4.

[0016] Preferably, before the passenger conveyor needs to be started and operated, the liquid level heights of the still water chamber and the water storage chamber are detected;

[0017] When the liquid level height in the water storage chamber is equal to the preset height h and the liquid level height in the still water chamber is lower than the preset height H, an instruction to allow the passenger conveyor to operate is sent to the control system;

[0018] When the liquid level height in the water storage chamber is equal to the preset height h, but the liquid level height in the still water chamber is higher than or equal to the preset height H, an instruction for automatic oil drainage is sent to the control system; the oil liquid in the still water chamber is drained to an independent oil storage chamber through an oil pump via an oil guide pipe; and an instruction for automatic water replenishment is sent, and the water liquid in the water replenishment chamber is replenished back to the water storage chamber through a water pump via a water guide pipe; then an instruction to allow the passenger conveyor to operate is sent to the control system;

[0019] When the liquid level height in the water storage chamber is lower than the preset height h, an instruction for automatic water replenishment is sent to the control system, and the water liquid in the water replenishment chamber is replenished back to the water storage chamber through a water pump via a water guide pipe, and then an instruction to allow the passenger conveyor to operate is sent to the control system.

[0020] Preferably, during the operation of the passenger conveyor, the liquid level heights of the still water chamber and the water storage chamber are detected in real time;

[0021] When it is detected that the liquid level height of the still water chamber is within a preset range from the preset height H, an instruction for automatic oil drainage is sent to the control system, and the oil liquid in the still water chamber is drained to an independent oil storage chamber through an oil pump via an oil guide pipe; and an instruction for automatic water replenishment is sent, and the water liquid in the water replenishment chamber is replenished back to the water storage chamber through a water pump via a water guide pipe; then an instruction to allow the passenger conveyor to operate is sent to the control system.

[0022] Compared with the prior art, the present invention has the following technical effects:

[0023] The oil-water separation device in the intelligent oil-water separation system of the passenger conveyor of the present invention can efficiently handle the oil-water separation of large-flow oil-water mixture, and has a small structure and is convenient for cleaning and maintenance. At the same time, the intelligent circulation system is cleverly integrated with the oil-water separation device, which can not only monitor the sewage discharge status of the oil-water separation device in real time to ensure that the discharged water quality meets the national and local sewage discharge standards, but also detect the oil storage status in the oil-water separation device in real time to avoid secondary pollution caused by exceeding the oil storage upper limit of the oil-water separation device. Moreover, it can start the intelligent circulation system before reaching the oil storage upper limit, automatically discharge the separated oil liquid into an independent oil storage box, and synchronously complete the automatic replenishment of the water liquid in the device, completely liberating the maintenance personnel and avoiding the phenomenon of leakage and misdischarge due to negligence or improper maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0025] Figure 1 It is an external view of the intelligent oil-water separation system of the passenger conveyor of the present invention.

[0026] Figure 2 It is a schematic cross-sectional view of the intelligent oil-water separation system of the passenger conveyor of the present invention.

[0027] Figure 3 It is a three-dimensional schematic view of the intelligent oil-water separation system of the passenger conveyor of the present invention.

[0028] Figure 4 It is a three-dimensional schematic view of the intelligent oil-water separation system of the passenger conveyor of the present invention.

[0029] Figure 5 It is a schematic diagram of the usage scenario of the intelligent oil-water separation system of the passenger conveyor of the present invention. SPECIFIC EMBODIMENTS

[0030] The following specific embodiments are used to illustrate the implementation manners of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific implementation manners, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without departing from the general design concept of the invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited only to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention complete and thorough, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0031] Embodiment 1

[0032] The intelligent oil-water separation system of the passenger conveyor of the present invention includes an oil-water separation device 33, a water replenishing chamber 62, and an oil storage chamber 61. The oil-water separation device 33 includes a buffer chamber 10, a still water chamber 11, and a water storage chamber 12. The oil-water separation device is used to buffer and let the oil-water mixture stand still to separate the oil and water layers. The separated water enters the water storage chamber and is discharged through the first water outlet in the water storage chamber. The water replenishing chamber 62 is used to receive the water discharged from the first water outlet and replenish the water into the water storage chamber under preset conditions, and the remaining water is discharged through the second water outlet in the water replenishing chamber. The oil storage chamber 61 is used to store the oil separated from the still water chamber.

[0033] As Figures 1 - 4 shown, the oil-water separation device 33 includes a box body 1 and a top buffer cover plate 2, and a buffer chamber 10, a still water chamber 11, a water storage chamber 12, a first water outlet 9, a water inlet 13, a first water outlet 14, a water replenishing chamber 62, a second water outlet 67, a water pump 65, a water guide pipe 66, an oil storage chamber 61, an oil pump 63, and an oil guide pipe 64 are respectively established, as Figure 2 and 3 shown.

[0034] The top buffer cover plate 2 includes a top cover plate 23, a buffer partition 4, and a limiting device 6. After installation, the top cover plate 23 is in direct contact with the top of the separation grid 7 in the box body 1 and is not fixedly connected to the box body 1, and the top buffer cover plate 2 is limited by the limiting device 6. The buffer partition 4 of the top buffer cover plate 2 divides the box body 1 into a buffer chamber 10 and a still water chamber 11, which can buffer and let the incoming oil-water mixture stand still to the greatest extent. The top buffer cover plate 2 makes the oil-water separation device 33 form an annular water inlet of 13-1, 13-2, 13-3, and 13-4, which can maximize the instantaneous flow rate processing capacity.

[0035] A stilling partition 5 is provided in the box body 1 to further buffer and let the incoming oil-water mixture stand still, avoiding the possibility of the oil-water mixture directly entering the water storage chamber 12 and improving the oil-water separation ability. A separation grid 7 is provided in the box body 1, and separation grid openings 8 are provided at the bottom of the four sides of the separation grid 7. The separated water liquid enters the water storage chamber 12 through the separation grid openings 8. A first water outlet 9 is provided in the box body 1, and the water liquid that has been separated and processed in the water storage chamber 12 is discharged downward through the first water outlet 9.

[0036] A water replenishing chamber 62 is provided below the water storage chamber 12 of the box body 1 to receive the water discharged from the first water outlet. A second water outlet 67 is provided at a certain height of the water replenishing chamber 62, so that the water replenishing chamber 62 can store a certain amount of separated water liquid, and the rest is discharged through the second water outlet 67 into the municipal drainage network outside the passenger conveyor equipment such as escalators or moving walks.

[0037] When the oil-water separation device 33 reaches its maximum oil storage capacity, the separated oil is temporarily stored in the buffer chamber 10 and the still water chamber 11 in the box body 1, and is located between the upper edge of the separation grid opening 8 and the top cover plate of the top buffer cover plate 2. An independent oil storage chamber 61 is provided on the periphery of the box body 1 for storing the oil separated from the still water chamber 11.

[0038] The heights of the various partition plates, separation grid openings and drain pipes in the oil-water separation device 33, the sizes of the water replenishing chamber and the oil storage chamber, etc. must be reasonably arranged according to the actual applicable working conditions, so as to balance the flow processing capacity, oil storage capacity, circulating water replenishing system, etc. of the oil-water separation device.

[0039] In addition, the oil-water separation intelligent system of the passenger conveyor device of the present invention further includes a first liquid level sensor 22, a second liquid level sensor 21, a water pump 65, a water guide pipe 66, an oil pump 63 and an oil guide pipe 64. The first liquid level sensor 22 is installed on the top buffer cover plate 2 and is located in the area of the water storage chamber 12; the second liquid level sensor 21 is installed on the top buffer cover plate 2 and is located in the area of the still water chamber 11. Through the first liquid level sensor 22 and the second liquid level sensor 21, the water level in the water storage chamber 12 and the height of the oil-water mixture in the still water chamber 11 can be respectively detected in real time; the water pump 65 is arranged in the water replenishing chamber 62, and the water guide pipe 66 is arranged between the water replenishing chamber 62 and the water storage chamber 12 through the first water outlet 9, and can realize the one-way conduction from the water replenishing chamber 62 to the water storage chamber 12. When the water storage chamber 12 needs to be replenished with water, the water pump 65 can reverse the water stored in the water replenishing chamber 62 to the water storage chamber 12 to realize automatic circulation; the oil pump 63 is arranged in the oil storage chamber 61, and the oil guide pipe 64 is arranged between the still water chamber 11 and the oil storage chamber 61, and can realize the one-way conduction from the still water chamber 11 to the oil storage chamber 61. When the oil storage amount in the still water chamber 11 reaches the oil storage limit, the oil pump 63 can discharge the oil separated from the still water chamber 11 to the oil storage chamber 61 to realize automatic oil drainage and isolation.

[0040] Then, when a passenger conveyor device such as an escalator or a moving walk needs to be started and operated, the detection device of the intelligent circulation system can monitor the state of the oil storage amount and the water storage amount in the oil-water separation device in real time. When it is detected that the oil storage amount reaches the upper limit, the automatic oil drainage program is started to discharge the separated oil to an independent oil storage chamber, and at the same time, the automatic water replenishing program is started to reverse enough water from the water replenishing chamber to the water storage chamber. The specific situation is as follows:

[0041] a. When the height value h1 detected by the first liquid level sensor 22 is equal to the system-set threshold h, and the height value H1 detected by the second liquid level sensor 21 is less than the system-set threshold H, it indicates that the water in the water storage chamber 12 is normal and the oil storage in the static water chamber 11 has not reached the upper limit. At this time, both the automatic oil drainage and water drainage programs of the circulation system are kept closed, and then passenger conveying equipment such as escalators or moving walks can be started for operation;

[0042] b. When the height value h1 detected by the first liquid level sensor 22 is equal to the system-set threshold h, and the height value H1 detected by the second liquid level sensor 21 is greater than or equal to the system-set threshold H, it indicates that the water in the water storage chamber 12 is normal, but the oil storage in the static water chamber 11 has reached the upper limit. At this time, the circulation system starts the automatic oil drainage program, and drains the oil in the static water chamber 11 to the independent oil storage chamber 61 through the oil pump 63 via the oil guide pipe 64; meanwhile, the circulation system will synchronously start the automatic water replenishment program, and replenish the water in the water replenishment chamber 62 back to the water storage chamber 12 through the water pump 65 via the water guide pipe 66. Through the intelligent adjustment of the circulation system, the oil and water in the oil-water separation device reach a new balance state again, and then passenger conveying equipment such as escalators or moving walks can be started for operation;

[0043] c. When the height value h1 detected by the first liquid level sensor 22 is less than the system-set threshold h, it indicates that the water in the water storage chamber 12 is abnormal. At this time, the circulation system starts the automatic water replenishment program, and replenishes the water in the water replenishment chamber 62 back to the water storage chamber 12 through the water pump 65 via the water guide pipe 66. Through the intelligent adjustment of the circulation system, the water in the water storage chamber 12 of the oil-water separation device returns to normal again, and then passenger conveying equipment such as escalators or moving walks can be started for operation;

[0044] When passenger conveying equipment such as escalators or moving walks has been started and is operating normally, the height value h1 detected by the first liquid level sensor 22 at this time must be equal to the system-set threshold h. As the oil separated in the oil-water separation device accumulates continuously, the height value H1 detected by the second liquid level sensor 21 will get closer and closer to the system-set threshold H. When the detected value H1 is within the range of the system-set threshold H±X, the circulation system starts the automatic oil drainage program, and drains the oil in the static water chamber 11 to the independent oil storage chamber 61 through the oil pump 63 via the oil guide pipe 64; meanwhile, the circulation system will synchronously start the automatic water replenishment program, and replenish the water in the water replenishment chamber 62 back to the water storage chamber 12 through the water pump 64 via the water guide pipe 65. Through the intelligent adjustment of the circulation system, the oil and water in the oil-water separation device reach a new balance state again, and then passenger conveying equipment such as escalators or moving walks can continue to operate, without the need for maintenance personnel to stop the escalator after receiving a fault display and manually clean the oil in the oil-water separation device.

[0045] The usage scenarios of the oil-water separation intelligent system of the passenger conveyor of the present invention can include passenger conveyor equipment such as escalators and moving walks. The passenger conveyor equipment includes the truss 31 of the escalator and the moving walk, the steel bottom plate 32 of the truss, the oil guide tray, etc. The oil-water separation device 33 is fixed on the steel bottom plate 32 of the truss and is located between the steel bottom plate 32 of the truss and the civil engineering pit, as Figure 5 shown.

[0046] The present invention has been described in detail through specific embodiments and examples, but these do not constitute a limitation to the present invention. Without departing from the principle of the present invention, those skilled in the art can also make many deformations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent oil-water separation system for a passenger conveyor, characterized in that: include: The oil-water separation device comprises a buffer chamber, a still water chamber and a water storage chamber; the oil-water separation device is used to buffer and still the oil-water mixture to separate the oil and water, and the separated water enters the water storage chamber and is discharged through the first water outlet in the water storage chamber; A water replenishment chamber, used to receive the water discharged from the first water outlet and replenish the water to the water storage chamber under preset conditions, and the remaining water is discharged through the second water outlet in the water replenishment chamber; The oil storage chamber is used to store the oil separated from the static water chamber.

2. The intelligent oil-water separation system for passenger conveying equipment according to claim 1, characterized in that: A water pump and a water pipe are arranged in the water replenishment chamber. The water pipe is arranged between the water replenishment chamber and the water storage chamber through the first water outlet to realize one-way conduction from the water replenishment chamber to the water storage chamber. When the water height in the water storage chamber is lower than the preset threshold value h, the water pump replenishes the water stored in the water replenishment chamber to the water storage chamber.

3. The intelligent oil-water separation system for passenger conveying equipment according to claim 1, characterized in that: An oil pump and an oil guide pipe are arranged in the oil storage chamber. The oil guide pipe is arranged between the still water chamber and the oil storage chamber to realize one-way conduction from the still water chamber to the oil storage chamber. When the oil storage height in the still water chamber is higher than a preset threshold value H, the oil pump discharges the oil separated from the still water chamber to the oil storage chamber.

4. The intelligent oil-water separation system for passenger conveying equipment according to claim 1, characterized in that: The water storage chamber is provided with a first liquid level sensor for monitoring the liquid level in the water storage chamber; the still water chamber is provided with a second liquid level sensor for monitoring the liquid level in the still water chamber.

5. The intelligent oil-water separation system for passenger conveying equipment according to claim 1, characterized in that: The oil-water separation intelligent system is fixed to the opening of the truss steel bottom plate of the passenger conveyor and is located between the truss steel bottom plate and the civil engineering pit; the truss steel bottom plate is fixed to the bottom of the truss.

6. A monitoring method for an intelligent oil-water separation system of a passenger conveyor, characterized in that: The automatic oil discharge and automatic water replenishment procedures are started according to the liquid level heights of the still water chamber and the water storage chamber of the oil-water separation intelligent system, and the oil-water separation intelligent system is the oil-water separation intelligent system of the passenger conveying device described in claim 4.

7. The monitoring method of the intelligent oil-water separation system of the passenger conveyor according to claim 6 is characterized in that: Before the passenger conveyor needs to be started, check the liquid level height of the still water chamber and the water storage chamber; When the liquid level in the water storage chamber is equal to the preset height h, and the liquid level in the still water chamber is lower than the preset height H, an instruction is sent to the control system to allow the passenger conveyor to operate; When the liquid level in the water storage chamber is equal to the preset height h, but the liquid level in the still water chamber is higher than or equal to the preset height H, an automatic oil discharge command is issued to the control system; the oil in the still water chamber is discharged to the independent oil storage chamber through the oil pump via the oil guide pipe; and an automatic water replenishment command is issued, and the water in the water replenishment chamber is replenished back to the water storage chamber through the water pump via the water guide pipe; and then a command to allow the passenger conveyor to operate is issued to the control system; When the liquid level in the water storage chamber is lower than the preset height h, an automatic water replenishment command will be sent to the control system, and the water in the water replenishment chamber will be replenished to the water storage chamber through the water pump via the water pipe, and then a command to allow the passenger conveying device to operate will be sent to the control system.

8. The monitoring method of the intelligent system of the oil-water separation device of the passenger conveyor according to claim 6 is characterized in that: During the operation of the passenger conveyor, the liquid level heights of the still water chamber and the water storage chamber are detected in real time; When it is detected that the liquid level in the still water chamber is within a preset range from the preset height H, an automatic oil discharge command is sent to the control system, and the oil in the still water chamber is discharged to the independent oil storage chamber through the oil pump via the oil guide pipe; and an automatic water replenishment command is sent, and the water in the water replenishment chamber is replenished back to the water storage chamber through the water pump via the water guide pipe; and then a command is sent to the control system to allow the passenger conveying device to operate.

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