Grease clogging early-warning dredging system for catering drainage system and clogging judgment method
By using grease and silting composite cables in the catering sewage system, combined with the technology of temperature measurement fiber and heating cable, the precise detection and heating and silting of silting points in the pipeline is achieved, solving the problem of lack of early warning and efficient dredging of existing systems, and improving the intelligence and operational efficiency of the system.
Patent Information
- Application Number
- CN202411558687.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-02-28
AI Technical Summary
The existing catering sewage system lacks early warning function when the oil and grease are blocked, resulting in mechanical or chemical dredging through professional institutions when the pipeline is blocked. This is expensive, difficult to operate, and affects normal operation.
A grease and silt composite cable including temperature measurement fiber and heating cable is designed. Through online multi-point temperature measurement, the temperature difference in the pipeline is detected, the silt position is judged, and local heating and silt are carried out, combined with compressed air pipes to accelerate the silt process.
Accurate detection of silt points in the pipeline and instant heating and dredging are achieved, and the speed and effect of pipeline dredging is improved. The system is automatically operated, unattended, and has a high level of intelligence.
Smart Images
Figure CN119531461A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pipeline dredging, and specifically discloses a grease clogging early warning and dredging system for a catering sewage system and a clogging judgment method. Background Art
[0002] In the long-term use of kitchens in restaurants and hotels, the sewer pipes will be clogged and condensed by waste grease (especially animal grease) discharged from the kitchen. Over time, the pipes will be blocked and kitchen sewage will not be able to flow into the sewage collection pool. Especially in winter, the outdoor pre-buried pipes are prone to blockage. The existing solution to grease blockage in catering drainage systems is usually to use machinery or chemical agents for dredging by professional organizations. This method is not only expensive and difficult to operate, but also unable to provide early warning. It can only be handled when the pipeline is blocked, causing restaurants and hotels to stop operating for treatment, affecting their normal operations.
[0003] The invention patent with application number 2021106128600 discloses an intelligent kitchen degreasing drainage system, including a sewer pipe, an intelligent heater is applied to the outer sleeve of the sewer pipe, a heat-reflecting layer is applied to the outer sleeve of the intelligent heater, and a heat-insulating cotton is applied to the outer sleeve of the heat-reflecting layer. The power input end of the intelligent heater is connected to the power output end of the intelligent temperature control timer. The maximum temperature of the intelligent heater is higher than the melting point and lower than the boiling point. It can be widely used for common greases and fats. The time is set by the intelligent temperature control timer or the intelligent temperature control timer is directly started. The intelligent kitchen degreasing drainage system disclosed in the patent is essentially to set a layer of resistance heating wire on the outer side of the sewer pipe, and heat the entire sewer pipe by resistance heating to melt the condensed grease, thereby achieving the effect of pipeline dredging. However, the pipeline structure in the system is complex and the manufacturing cost is high, and only the sewer pipe connected to the sink has a heating function. The pipes connected to the sewage pool in some restaurants and hotels are tens of meters long. If other pipe parts (especially the outdoor part) are blocked, they cannot be effectively dredged. In addition, the smart kitchen oil removal and drainage system does not have an early warning function. It can only be discovered when the pipeline is blocked, causing the discharged waste grease to overflow the sink, resulting in untimely pipeline dredging. Therefore, in view of the above shortcomings of the existing smart kitchen oil removal and drainage system, this application proposes a catering drainage system grease blockage early warning and dredging system and a blockage judgment method that can effectively solve the above technical problems. Summary of the invention
[0004] The purpose of the present invention is to provide a grease blockage early warning and desilting system for a catering drainage system and a blockage judgment method, so as to achieve the first warning when the kitchen pipeline system is prone to blockage and to desilt and dredge the corresponding blocked parts to ensure the smooth flow of the entire kitchen pipeline system.
[0005] The present invention is achieved through the following technical solutions: A grease clogging warning and desilting system for a catering sewage system, comprising a pipe assembly connected to a liquid discharge end of a catering sink, and the other end of the pipe assembly extends into a sewage biochemical pool, a grease desilting composite cable is provided through the pipe assembly, and the grease desilting composite cable on one side of the catering sink is sealed and extends out of the end of the pipe assembly and is electrically connected to a control unit; The grease desilting composite cable comprises a temperature measuring optical fiber and a heating cable which are bundled together. The temperature measuring optical fiber and the heating cable are used to measure the temperature and independently heat each point of the pipeline component along the length direction.
[0006] During the operation of the grease clogging early warning and desilting system for the catering sewage system disclosed by the present invention, the temperature of the pipeline is measured online at multiple points along its length direction through the temperature measuring optical fiber. When the pipeline is clogged due to the solidification of grease, the internal temperature of the pipeline connected to the catering sink side is significantly higher than the internal temperature of the pipeline connected to the sewage biochemical pool side. At this time, the control unit can determine the specific location of the pipeline clogging by corresponding to the position of the temperature measuring optical fiber with a large temperature difference. Then, the control unit controls the heating cable to independently heat the location of the clogging point according to the determined location of the clogging point, so that the solidified grease is quickly melted by heating to achieve pipeline dredging.
[0007] As a further configuration of the above scheme, the grease silting composite cable also includes a compressed air pipe that is combined with a temperature measuring optical fiber and a heating cable. The extended end of the compressed air pipe close to the dining sink is connected to a compressed air source, and multiple groups of air holes are arranged on the compressed air pipe inside the pipeline assembly. The above grease silting composite cable also adds a compressed air pipe with air holes. When the grease silting composite cable heats and silts the blockage point, the compressed gas introduced can stir the kitchen liquid upstream of the pipeline to accelerate the temperature rise. On the other hand, a certain pressure difference will be formed on both sides of the blockage point to promote the solidified grease and accelerate its falling off from the pipeline, thereby improving the speed and effect of pipeline silting.
[0008] As a further configuration of the above scheme, the sum of the cross-sectional areas of the temperature measuring optical fiber, the heating cable and the compressed air pipe does not exceed 1 / 5 of the cross-sectional area of the inner circle of the pipeline assembly. The effective diameter of the grease desilting composite cable combining the three is controlled within an appropriate range, which can ensure that the kitchen liquid can flow smoothly along the inside of the pipeline and avoid the grease desilting composite cable having an excessively large effective diameter causing the liquid inside the pipeline to flow poorly.
[0009] As a further configuration of the above scheme, the pipeline assembly includes a sewer collecting pipe connected to the drain end of the catering sink, the lower end of the sewer collecting pipe is connected to a delivery pipe, and the grease dredging composite cable is arranged through the delivery pipe.
[0010] As a further configuration of the above scheme, the temperature measuring optical fiber is a distributed temperature measuring optical fiber, and the heating cable is a parallel constant power heating cable.
[0011] As a further configuration of the above scheme, the control unit is a distribution box with a display screen and control buttons, and a control module electrically connected to the grease desilting composite cable is arranged inside the distribution box.
[0012] The present invention also discloses a method for judging the clogging state of a pipeline based on the above-mentioned early warning silt removal system, comprising the following steps: S1: The temperature of each point of the pipeline component is measured by the temperature measuring optical fiber, and the temperature gradient at both ends of the pipeline component is calculated by the control unit; S2: If the temperature gradient in step 1 does not exceed 0.1°C / m, further determine whether there is a greater temperature difference of the cooking liquid inside the pipeline component than the temperature difference at both ends of the pipeline component. If so, it indicates that the pipeline is slightly blocked, and if not, it indicates that the pipeline is unobstructed; S3: If the temperature gradient in step 1 exceeds 0.1°C / m, further determine whether there is a single-point kitchen liquid temperature difference inside the pipeline component that is greater than the temperature difference at both ends of the pipeline component, or whether there is a multi-point kitchen liquid temperature difference that is greater than the temperature difference at both ends of the pipeline component. If the single-point kitchen liquid temperature difference is greater than the temperature difference at both ends of the pipeline component, it indicates that the pipeline is blocked at a single point; if the multi-point kitchen liquid temperature difference is greater than the temperature difference at both ends of the pipeline component, it indicates that the pipeline is blocked at multiple points.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The catering sewage system grease blockage early warning and silt removal system disclosed by the present invention realizes accurate detection of blockage points inside the pipeline, and can immediately perform heating and silt removal to clear the pipeline after the blockage point is detected. The whole system can automatically realize independent operation as long as the power is turned on, realizing unattended operation and having a high intelligent effect.
[0014] The grease desilting composite cable of the present invention can be cut and used according to the on-site pipeline layout when in use, and the length is not limited. It can be directly inserted into the pipeline according to the direction of the pipeline. It is not only convenient and quick to assemble, and has low cost, but also can meet the use requirements of kitchen water system pipelines of various pipeline lengths and layouts, and has wider applicability.
[0015] The present invention further provides a compressed air pipe in the grease desilting composite cable. The compressed gas introduced during the desilting process can stir the kitchen liquid upstream of the blockage point to achieve rapid heating. At the same time, the pressure difference on both sides of the blockage point is used to push the solidified grease attached to the pipe wall, thereby accelerating the falling of the grease during the melting process and improving the speed and effect of pipeline desilting. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the main plane structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the catering sink, pipeline assembly and grease desilting composite cable in the present invention; Figure 3 It is a schematic diagram of the structure in the first state of the delivery pipe in the present invention; Figure 4 It is a schematic diagram of the structure in the second state of the delivery pipe in the present invention; Figure 5 It is a schematic diagram of the structure in the third state of the delivery pipe in the present invention; Figure 6 It is a schematic diagram of the structure in the fourth state of the delivery pipe in the present invention. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 6 , and describes the application in detail with reference to embodiments. Example 1
[0020] Example 1 discloses a grease blockage warning and dredging system for a restaurant drainage system. Figure 1 and attached Figure 2, including a catering sink 1, a control unit 2 and a pipeline assembly 3. The catering sink 1 is stably installed at a corresponding position in a restaurant or hotel kitchen through legs 101 on both sides. The pipeline assembly 3 includes a sewer collection pipe 301 connected to the lower discharge end of the catering sink 1. A delivery pipe 302 is connected to the lower end of the sewer collection pipe 301. The delivery pipe 302 is bent accordingly according to the position of the sewage biochemical pool 4, and then extends horizontally along the underground covering layer to the sewage biochemical pool 4. The length of the delivery pipe 302 can be set to range from several meters to hundreds of meters according to the position of the sewage biochemical pool 4, so that when the pipeline assembly 3 is not blocked, the filtered catering liquid in the catering sink 1 can be passed from the sewer collection pipe 301 to the delivery pipe 302, and then transported to the sewage biochemical pool 4 by the delivery pipe 302 until it is discharged.
[0021] The control unit 2 is a distribution box with a control system, the distribution box has a corresponding control module integrated inside, and is connected to a power cord 6. A display screen and two control buttons are provided on the distribution box, wherein the two control buttons correspond to the forced desilting mode and the automatic control mode respectively, and the display screen can display the recorded information parameters. Then the distribution box is set beside the catering sink 1, a grease desilting composite cable 5 is led out from one side thereof, and the grease desilting composite cable 5 is extended from one end of the delivery pipe 302 close to the sewer collection pipe 301, and the grease desilting composite cable 5 is extended into the end of the delivery pipe 302, and sealing measures are taken at the end where the grease desilting composite cable 5 is extended into the delivery pipe 302 to prevent waste grease from flowing out from here, and then extends along the entire delivery pipe 302, and finally extends from the other end of the delivery pipe 302 to the sewage biochemical pool 4.
[0022] The grease desilting composite cable 5 in this embodiment 1 is composed of a temperature measuring optical fiber 501, a heating cable 502 and a compressed air pipe 503, and the sum of the cross-sectional areas of the three does not exceed 1 / 5 of the cross-sectional area of the inner circle of the delivery pipe 302, ensuring that the kitchen liquid can flow normally along the delivery pipe 302, and is cut and used according to the on-site pipeline layout, with no limit on length, and can be directly inserted into the pipeline according to the direction of the pipeline.
[0023] The temperature measuring optical fiber 501 adopts a distributed temperature measuring optical fiber, so that it can measure the temperature of each point along the path direction of the conveying pipe 302, and feed back the temperature measured at each point to the control unit 2. Take a temperature measuring optical fiber 501 with a length of 100m and 1000 temperature measuring points as an example, that is, there is a temperature measuring point every 10mm of the temperature measuring optical fiber 501. When the temperature of each point changes, it can be immediately displayed on the display screen of the control unit 2. The control module will analyze and calculate the detected temperature data, determine which part of the pipeline has grease condensation or siltation, and send instructions to the dredging system to start the dredging instruction.
[0024] The heating cable 502 adopts a parallel constant power heating cable, which is a parallel resistance cable heating system. Its heating power is distributed in equal power along the length direction, can be extended indefinitely, and can also be heated in sections along the length direction of the cable. The outer end of the compressed air pipe 503 is connected to an external compressed air source (not shown in the figure), and a corresponding electric control valve is provided on the external compressed air source to realize the introduction or closing of compressed gas. Finally, a plurality of groups of air holes are provided on the compressed air pipe 503 located inside the delivery pipe 302 at equal intervals along its own length direction.
[0025] During the operation of the catering sewage system grease blockage warning and desilting system disclosed in the present embodiment 1, when the interior of the delivery pipe 302 is in an unobstructed state, the grease flows along the entire delivery pipe 302. Even if there is a large temperature difference between indoors and outdoors, the temperature of the delivery pipe 302 from the inside to the outside along the length direction gradually decreases, and there is no large temperature difference. At this time, the temperature parameters checked and fed back to the control unit 2 by the temperature measuring optical fiber 501 are in a normal state.
[0026] When grease solidifies and clogs a certain area inside the delivery pipe 302, the temperature difference between the two sides of the delivery pipe 302 at the clogged position will increase. At this time, the temperature measuring optical fiber 501 can accurately detect the area with a poor temperature difference and determine that this is the grease clogged point. Subsequently, the control unit 2 issues a control instruction to power on and heat a section of the heating cable 502 corresponding to the area, locally heating it to melt the solidified grease; at the same time, the compressed air source introduces compressed air into the compressed air pipe 503, and the compressed air flowing along the compressed air pipe 503 will be discharged from the air hole into the delivery pipe 302. At this time, the compressed air flow entering the front side of the grease clogged point will stir the cooking liquid, making its heat transfer faster and thus accelerating the melting of the grease at the clogged area. At the same time, since the conveying pipe 302 outside the blockage point is almost the same as the external atmospheric pressure, and the pressure in the conveying pipe 302 inside the blockage point is higher due to the presence of cooking liquid and pipelines, the air pressure difference on both sides of the blockage point is used to push the solidified grease to quickly fall from the inner wall of the conveying pipe 302, thereby accelerating the unblocking of the blockage point in the conveying pipe 302.
[0027] Under normal circumstances, there are four states in the catering sewage system pipeline, namely, the pipeline is unobstructed, the pipeline is slightly blocked, the pipeline is blocked at a single point, and the pipeline is blocked at multiple points. This embodiment 1 also discloses a method for judging the internal blockage state of the delivery pipe 302 based on the above system.
[0028] In the first state, the water in the delivery pipe 302 is unobstructed, and there is a small amount of accumulated water (see attached Figure 3 ), the whole system does not work. At this time, since the delivery pipe 302 is connected to the outside environment, the inlet temperature of the delivery pipe 302 t 1 and outlet temperaturet 2 Although there is a certain temperature difference, it is small. At this time, the temperature gradient of the gas in the delivery pipe 302 measured by the temperature measuring optical fiber is (℃ / m), Not exceeding 0.1℃ / m.
[0029] In the second state, there is a certain amount of blockage in the delivery pipe 302, but it is not completely blocked. At this time, the water in the delivery pipe 302 is not flowing smoothly, and a large amount of used kitchen water is accumulated in the pipe in front of the blockage point (see attached Figure 4 ), and these waters are usually t 3 The temperature of a small amount of kitchen water behind the blockage point is t 4 Before the desilting system is operated, the air in the blocked delivery pipe 302 is close to the temperature of the outside environment, and its gas temperature gradient is Not more than 0.1℃ / m, but the kitchen water temperature before and after the blockage point t 3 and t 4 There is a large temperature difference, the temperature difference of the kitchen water before and after the blockage point Greater than the temperature difference of the gas on both sides under unobstructed conditions , the control unit will and Comparison and judgment are made to determine the clogging situation and the location of the clogging point of the delivery pipe 302. Finally, the silt removal system starts to operate, current is passed to the heating cable 502 to heat it up, and compressed air is passed to the compressed air pipe 503 to perform silt removal and dredging work.
[0030] In the third state, there is a blockage point in the delivery pipe 302, and the pipe is completely blocked. At this time, the water in the delivery pipe 302 is not flowing smoothly, and sometimes there is a backflow. Before the delivery pipe 302 is blocked, a large amount of kitchen water is accumulated (see attached Figure 5 ), and the temperature of these kitchen water t 5 Usually higher. The air temperature in the delivery pipe 302 behind the blockage point t 6 With outdoor ambient temperature t 2 tend to be the same, and the temperature difference of kitchen water before and after the blockage point t 5 and t 6 There is a large temperature difference. At this time, the control system will automatically compare the temperature difference of the cooking liquid The temperature difference of the gas in the tube under the unobstructed state Then, the dredging system starts to operate, current is passed through the heating cable 502 to heat it up, and compressed air is passed through the compressed air pipe 503 to perform dredging. If the temperature difference between the front and rear sides of the clogging point is similar, it indicates that the dredging of the clogging in the delivery pipe 302 is completed.
[0031] In the fourth state, there are multiple clogging points in the delivery pipe 302, and the pipe is completely blocked. At this time, a large amount of wastewater is accumulated before the clogging (see Appendix Figure 6 ), these waters are usually t 7 Before the desilting system is working, the air in the pipe behind the blockage point is close to the outside environment temperature. t 2 = t 9 , the temperature between the clogging points t 8 Temperature before and after the blockage point t 7 and t 9 are inconsistent, and the temperature difference between the front and rear sides of the segmented blockage point is t 7 - t 8 , t 8 -t 9 There is a large temperature difference. The control unit of the desilting system will automatically compare , determine the siltation situation, then start the silt removal system and record and clogging. It rises quickly and then falls quickly. The rapid rise and subsequent fall, and the asynchronism, indicate that there are blockages in the delivery pipe 302 at multiple locations and these blockages have been effectively cleared.
[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A grease blockage warning and desilting system for a restaurant drainage system, comprising a pipe assembly connected to the drainage end of a restaurant sink, and the other end of the pipe assembly extends into a sewage biochemical pool, characterized in that: A grease desilting composite cable is provided through the pipeline assembly, and the grease desilting composite cable near the dining sink is sealed and extends out of the end of the pipeline assembly and is electrically connected to a control unit; The grease desilting composite cable comprises a temperature measuring optical fiber and a heating cable which are bundled together. The temperature measuring optical fiber and the heating cable are used to measure the temperature and independently heat each point of the pipeline component along the length direction.
2. The catering sewage system grease blockage warning and dredging system according to claim 1 is characterized in that: The grease dredging composite cable also includes a compressed air pipe that is wrapped and combined with a temperature measuring optical fiber and a heating cable. The extended end of the compressed air pipe close to the dining sink is connected to a compressed air source, and a plurality of groups of air holes are arranged at intervals on the compressed air pipe inside the pipeline assembly.
3. The grease blockage warning and dredging system for the catering sewage system according to claim 2 is characterized in that: The sum of the cross-sectional areas of the temperature measuring optical fiber, the heating cable and the compressed air pipe shall not exceed 1 / 5 of the cross-sectional area of the inner circle of the pipeline assembly.
4. The grease blockage warning and dredging system for catering sewage system according to claim 1 is characterized in that: The pipeline assembly comprises a drainage collecting pipe connected to the drainage end of the catering sink, the lower end of the drainage collecting pipe is connected to a delivery pipe, and the grease dredging composite cable is penetrated and arranged in the delivery pipe.
5. The grease blockage warning and dredging system for catering sewage system according to claim 1 is characterized in that: The temperature measuring optical fiber is a distributed temperature measuring optical fiber, and the heating cable is a parallel constant power heating cable.
6. The grease blockage warning and dredging system for catering sewage system according to claim 1 is characterized in that: The control unit is a distribution box with a display screen and control buttons, and a control module electrically connected to the grease desilting composite cable is arranged inside the distribution box.
7. A method for determining clogging based on the grease clogging early warning and dredging system for a catering sewage system according to any one of claims 1 to 6, characterized in that: The steps include: S1: The temperature of each point of the pipeline component is measured by the temperature measuring optical fiber, and the temperature gradient at both ends of the pipeline component is calculated by the control unit; S2: If the temperature gradient in step 1 does not exceed 0.1°C / m, further determine whether there is a greater temperature difference of the cooking liquid inside the pipeline component than the temperature difference at both ends of the pipeline component. If so, it indicates that the pipeline is slightly blocked, and if not, it indicates that the pipeline is unobstructed; S3: If the temperature gradient in step 1 exceeds 0.1°C / m, further determine whether there is a single-point kitchen liquid temperature difference inside the pipeline component that is greater than the temperature difference at both ends of the pipeline component, or whether there is a multi-point kitchen liquid temperature difference that is greater than the temperature difference at both ends of the pipeline component. If the single-point kitchen liquid temperature difference is greater than the temperature difference at both ends of the pipeline component, it indicates that the pipeline is blocked at a single point; if the multi-point kitchen liquid temperature difference is greater than the temperature difference at both ends of the pipeline component, it indicates that the pipeline is blocked at multiple points.