Foldable disposable oil-water separator with flow limiting device
By designing a disposable oil-water separator with foldable flow limit, using plastic film welding or blow molding process to form and installing flow limiting components internally, the problems of unstable flow and frequent cleaning are solved, and efficient separation and reduced transportation costs are achieved.
Patent Information
- Application Number
- CN202422250370.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-13
AI Technical Summary
In the kitchen application, existing oil and water separators have problems such as poor separation effect, frequent cleaning and high cost, and large equipment size is not convenient for transportation.
A disposable oil-water separator with foldable flow limiting device is designed, and is formed using plastic film welding or blow molding process. It has a flow limiting component inside, and the flow rate is controlled within the rated range and can be folded to reduce the packaging size.
It achieves stable flow separation effect, eliminates frequent cleaning, reduces transportation and storage costs, and is suitable for kitchen applications.
Smart Images
Figure CN223134184U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a liquid separation device, in particular to a disposable oil-water separator with a near-ground wastewater discharge outlet and a foldable flow-limiting device for separating oil and water in applications and / or grease and water. Background Art
[0002] On October 21, 1884, an American applied for the world's first patent for an oil-water separator, No. 306,981. For more than a hundred years, the basic principle of the oil-water separator has not changed. It utilizes the different densities of oil and water and their immiscibility. A container is designed with inlet and outlet pipes and some partition structures in the middle to allow the oil and water to stand still. The oil slowly floats to the liquid surface, and then the water at the bottom is drained out of the container. Moreover, it has always been a durable product.
[0003] In real life, especially in kitchen applications, many problems are encountered:
[0004] 1. For the same sink 1, the instantaneous flow rate into the oil-water separator 2 varies greatly under different usage conditions. For example, when turning on the faucet to let water flow, the maximum flow rate per second Q1 into the oil-water separator 2 when the sink plug is open is much different from when the sink is filled with water with the plug on, then processed, and finally the plug is removed to let water flow. At this time, the maximum flow rate per second Q2 into the oil-water separator, and Q2 may be 4 to 5 times that of Q1. Additionally, referring to Figures 1 to 3 , when the water is filled and then drained, due to the different installation positions of the oil-water separator, the height difference A between the inlet pipe opening of the oil-water separator and the liquid level of the sink is different, and the maximum flow rate per second Q2 into the oil-water separator is also different. Figure 3 The maximum flow rate per second Q2 into the oil-water separator in
[0005] An effective oil-water separator requires a sufficient effective volume to allow the oil-water mixture to stand still for enough time for oil-water separation. However, the kitchen space is usually very limited. Therefore, it is necessary to limit the flow rate per second into the oil-water separator so that it does not exceed the processing capacity of the oil-water separator. Otherwise, due to the pressure at the inlet and zero pressure at the outlet, on the one hand, the instantaneous flow rate per second is very high and exceeds the processing capacity of the oil-water separator, resulting in poor oil-water separation effect; on the other hand, since the water cannot be drained in time, the liquid level in the oil-water separator box will rise, and the oil and water may overflow. Or if the oil-water separator itself has an overflow device, the upper-layer grease and scum will enter the overflow pipe and flow into the sewer, making the oil-water separator meaningless.
[0006] 2. Since the manufacturing cost of the oil-water separator is relatively high, in order to ensure the continuous use of the oil-water separator, it is necessary to maintain a sufficient effective volume of the oil-water separator and prevent pipeline blockage. Therefore, the lid of the oil-water separator needs to be opened frequently to remove the sludge at the bottom of the tank and the floating oil on the upper layer. The unpleasant smell is strong enough to make people vomit, and the operators are reluctant to carry out regular cleaning. This is the main reason why the current oil-water separator cannot work well. At the same time, when the lid is opened, the bacteria in the box will enter the kitchen, affecting the hygiene. At the same time, it is inevitable that the sludge and grease will fall onto the kitchen floor and need to be cleaned up.
[0007] 3. According to Article 6.4.2.b of the industry standard for oil-water separators for catering wastewater 《CJ / T295-2015》: The residence time in the oil-water separation area of catering wastewater should not be less than 3 minutes; according to Table 2.3-1 in Chapter 2 of 《Building Water Supply and Drainage Design Manual》 (Third Edition), the minimum flow rate of each faucet is 0.33 l / s; if the effective volume of the oil-water separator is not less than 60 L, the overall volume is larger, and the packaging size will also be larger, which results in higher storage and transportation costs for the oil-water separator. Summary of the Utility Model
[0008] The technical problem to be solved by the present utility model is to provide a disposable oil-water separator with a folding structure and a flow-limiting device to address the above-mentioned common problems of current oil-water separators on the market. The second-by-second flow rate of the oil and water entering the oil-water separator will not exceed the rated load of the oil-water separator, eliminating the need to open the lid of the oil-water separator daily to clean the sludge and grease inside the tank. At the same time, the packaging size of the device is greatly reduced, facilitating stacking and transportation, and greatly benefiting the popularization and application of the oil-water separator.
[0009] The technical problem to be solved by the present utility model can be achieved through the following technical solutions:
[0010] A disposable oil-water separator with a folding structure and a flow-limiting device, comprising a disposable oil-water separator formed by welding or blow molding a plastic film. An inlet assembly and a drain assembly are provided on the disposable oil-water separator, and the disposable oil-water separator can be folded up when not in use.
[0011] In a preferred embodiment of the present utility model, it further includes a protective housing. When the disposable oil-water separator is in use, it is placed into the opened protective housing, and the inlet assembly and the drain assembly penetrate through the protective housing and are respectively connected to an inlet pipe and an outlet pipe.
[0012] In a preferred embodiment of the present utility model, the protective housing includes at least four side plates, and each side plate is connected to the adjacent side plate through a detachable hinge to enclose a space for accommodating the disposable oil-water separator. When the disposable oil-water separator is in use, it is placed in this space.
[0013] In a preferred embodiment of the present utility model, a hole is respectively formed in two oppositely arranged side plates, and the water inlet assembly and the water outlet assembly respectively penetrate through the protective housing through the holes in the two side plates.
[0014] In a preferred embodiment of the present utility model, the disposable oil-water separator further includes a housing for holding water and two partition plates. The housing is formed by welding or blow molding a plastic film. The partition plates are arranged inside the housing. The first partition plate is fixedly connected to the inner surface of the first shell wall of the housing, and there is a distance between the first partition plate and the inner surface of the second shell wall of the housing; the second partition plate is fixedly connected to the inner surface of the second shell wall of the housing, and there is a distance between the second partition plate and the inner surface of the first shell wall of the housing; the first shell wall and the second shell wall are oppositely arranged; the water inlet assembly and the water outlet assembly are respectively fixed on the third shell wall and the fourth shell wall of the housing, and the third shell wall and the fourth shell wall are oppositely arranged.
[0015] In a preferred embodiment of the present utility model, the water inlet assembly is a water inlet three-way joint. One port of the water inlet three-way joint is located outside the housing, and the other two ports are located inside the housing; the water outlet assembly is a water outlet three-way joint. One port of the water outlet three-way joint is located outside the housing, and the other two ports are located inside the housing.
[0016] In a preferred embodiment of the present utility model, a flow limiting assembly is arranged inside the water inlet three-way joint. The flow limiting assembly is used to limit the flow rate of the oil-containing wastewater entering the housing not to exceed the rated flow rate of the disposable oil-water separator.
[0017] In a preferred embodiment of the present utility model, the flow limiting assembly is a thin sheet installed on the inner side of one port of the water inlet three-way joint. A flow limiting hole is formed in the thin sheet, and the flow rate limited by the opening size of the flow limiting hole does not exceed the rated flow rate of the disposable oil-water separator.
[0018] In a preferred embodiment of the present utility model, the disposable oil-water separator further includes a first emptying assembly and a second emptying assembly. The first emptying assembly and the second emptying assembly are respectively arranged on the first shell wall and the second shell wall and communicate the inside and outside of the housing.
[0019] In a preferred embodiment of the present utility model, both the first emptying assembly and the second emptying assembly include an emptying pipe and a lid covering one end of the emptying pipe exposed outside the housing.
[0020] Due to the adoption of the above technical solution, in the present utility model, a flow limiting component is arranged in the water inlet component of the disposable oil-water separator, so that the flow rate flowing into the disposable oil-water separator will not exceed the rated treatment capacity of the disposable oil-water separator, and the oil and water are well separated. At the same time, it is possible to avoid the problems that the instantaneous flow rate is too large when entering the disposable oil-water separator, the water outlet is too late to drain, the oil and water overflow the disposable oil-water separator, or the separated grease is flushed back into the sewer again.
[0021] Since the disposable oil-water separator is formed by welding process or blow molding process with plastic film, the cost is greatly reduced. The disposable oil-water separator can be regarded as a consumable item. Regularly take out the disposable oil-water separator from the protective shell and replace it with a new one, which saves daily cleaning and maintenance and bids farewell to the disgusting smell in the kitchen and the possibility of grease spilling on the ground.
[0022] The protective shell can be folded, and the disposable oil-water separator is formed by welding process or blow molding process with plastic film and can itself be folded. In this way, the packaging size of the entire disposable oil-water separator with a folding structure and a flow limiting device is greatly reduced, which greatly reduces the stacking and transportation costs of the disposable oil-water separator with a folding structure and a flow limiting device. Practice has proved that under the same external dimensions of the existing oil-water separator, the disposable oil-water separator with a folding structure and a flow limiting device of the present utility model can save 60% of the space. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 FIG. 1 is one of the installation schematic diagrams of the existing oil-water separator in the kitchen.
[0024] Figure 2 FIG. 2 is another installation schematic diagram of the existing oil-water separator in the kitchen.
[0025] Figure 3 FIG. 3 is yet another installation schematic diagram of the existing oil-water separator in the kitchen.
[0026] Figure 4 FIG. 4 is an assembly schematic diagram of the disposable oil-water separator and the protective shell in the disposable oil-water separator with a folding structure and a flow limiting device of the present utility model.
[0027] Figure 5 FIG. 5 is a schematic diagram of the use state of the protective shell in the disposable oil-water separator with a folding structure and a flow limiting device of the present utility model.
[0028] Figure 6 FIG. 6 is a schematic diagram of the use state of the disposable oil-water separator in the disposable oil-water separator with a folding structure and a flow limiting device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0030] See Figures 3 to 6 , a disposable oil-water separator with a foldable current-limiting device shown in the figure, includes a disposable oil-water separator 100 formed by welding or blow molding a plastic film and a protective housing 200.
[0031] The protective housing 200 includes at least four side plates 210, 220, 230, 240. Each side plate 210, 220, 230, 240 is connected to the adjacent side plate 210, 220, 230, 240 by a detachable hinge 250 to enclose a space 260 for accommodating the disposable oil-water separator 100. When the disposable oil-water separator 100 is in use, it is placed in the space 260. When not in use, the four side plates 210, 220, 230, 240 can be folded up.
[0032] Each of the side plates 220, 240 is divided into at least two upper and lower small side plates 270, 280. The upper and lower small side plates 270, 280 are connected by a hinge 290 to form a side plate 210, 220, 230, 240.
[0033] In addition, the protective housing 200 may also include a bottom plate (not shown in the figure), or may not include a bottom plate. If a bottom plate is included, the bottom plate is connected to the lower edges of the four side plates 210, 220, 230, 240 by detachable hinges.
[0034] One hole 211, 231 is respectively provided on two relatively arranged side plates 210, 230.
[0035] The disposable oil-water separator 100 includes a housing 110 for holding water, two partitions 120, 130, a water inlet assembly 140, a water outlet assembly 150, an upper air vent assembly 160, and a lower air vent assembly 170.
[0036] The housing 110 is formed by welding or blow molding a plastic film. The housing 110 has six shell walls 111, 112, 113, 114, 115, 116. The six shell walls 111, 112, 113, 114, 115, 116 enclose a cavity for holding water. In this way, the disposable oil-water separator 100 can be folded up when not in use.
[0037] The water inlet assembly 140 and the water outlet assembly 150 are respectively arranged on the shell wall 113 (the aforementioned third shell wall) and the shell wall 114 (the aforementioned fourth shell wall) of the outer shell 110. The water inlet assembly 140 is a water inlet tee. One port 141 of the water inlet tee is located outside the outer shell 110, and the other two ports 142 and 143 are located inside the outer shell 110. The two ports 142 and 143 are arranged coaxially up and down. The water outlet assembly 150 is a water outlet tee. One port 151 of the water outlet tee is located outside the outer shell 110, and the other two ports 152 and 153 are located inside the outer shell 110. The two ports 152 and 153 are arranged coaxially up and down. In this way, the water from the water inlet assembly 140 will not flow directly out of the water outlet assembly 150 and can be stored in the water-containing cavity, so as to better separate oil and water. The shell wall 113 and the shell wall 114 are arranged opposite to each other.
[0038] When the disposable oil-water separator 100 is used and assembled into the space 260 of the protective outer shell 200, the port 141 on the water inlet assembly 140 passes through the protective outer shell 200 through the hole 211 on the side plate 210 and is connected to the water inlet pipe (not shown in the figure). The port 151 of the water outlet assembly 150 passes through the protective outer shell 200 through the hole 231 on the side plate 230 and is connected to the water outlet pipe (not shown in the figure).
[0039] Two partitions 120 and 130 are arranged inside the outer shell 110, close to the water outlet assembly 150. Among them, the partition 120 (the aforementioned first partition) is fixedly connected to the inner surface of the shell wall 111 (the aforementioned first shell wall) of the outer shell 110, and the partition 120 is spaced from the inner surface of the shell wall 112 (the aforementioned second shell wall) of the outer shell 110 by a certain distance; the partition 130 (the aforementioned second partition) is fixedly connected to the inner surface of the second shell wall 112 (the aforementioned second partition) of the outer shell 110, and the partition 130 is spaced from the inner surface of the shell wall 111 of the outer shell 110 by a certain distance; in this way, the two partitions 120 and 130 can make the water flow out of the water outlet assembly 150 slowly, so as to better separate oil and water. The shell wall 111 and the shell wall 112 are arranged opposite to each other.
[0040] In order to limit the flow rate of the oil-containing wastewater entering the outer shell 110 of the disposable oil-water separator 100 not to exceed the rated flow rate of the disposable oil-water separator 100, a flow-limiting component is arranged in the water inlet assembly 140. The flow-limiting component is a thin sheet 144 installed on the inner side of a port 141 of the water inlet assembly 140. A flow-limiting hole 115 is opened on the thin sheet 114, and the flow rate limited by the opening size of the flow-limiting hole 115 does not exceed the rated flow rate of the disposable oil-water separator 100.
[0041] The upper venting component 160 (the aforementioned first venting component) and the lower venting component 170 (the aforementioned second venting component) are respectively arranged on the first housing wall 111 and the second housing wall 112 and communicate the inside and outside of the housing 110. Both the upper venting component 160 and the lower venting component 170 include a straight-through vent pipe 161, 171 and caps 162, 172 covering the ends of the vent pipes 161, 171 exposed outside the housing 110. The caps 162, 172 are threadedly connected to the vent pipes 161, 171.
[0042] In addition, in order to facilitate lifting and lowering the disposable oil-water separator 100, a handle 111a can be provided on the first housing wall 111. The strength of the handle 111a is sufficient to bear the weight of the disposable oil-water separator 100 when it is filled with liquid, and the handle 111a can be lifted.
[0043] The working process of a disposable oil-water separator 100 with a foldable flow-limiting device according to the present utility model is as follows:
[0044] The wastewater containing oil enters the water-containing cavity through the water inlet component 140 of the disposable oil-water separator 100. Due to the action of the flow-limiting component in the water inlet component 140, the flow rate of the wastewater entering the water-containing cavity of the disposable oil-water separator 100 does not exceed its rated flow rate. The wastewater flows downward through the water inlet component 140. Since the density of the oil is less than that of water, the oil floats to the liquid surface. Due to the presence of the partition 120, the oil is intercepted on the left side of the partition 120. The partition 130 defines the liquid level (the upper edge of the partition 130) in the water-containing cavity. When it is found that there is too much oil or bottom sludge accumulated in the housing 110, or regularly according to experience, the joints connecting the water inlet component 140 and the water outlet component 150 of the disposable oil-water separator 100 to the water inlet pipe and the water outlet pipe are removed, and the water inlet component 140 and the water outlet component 150 are plugged with plugs to block the water inlet component 140 and the water outlet component 150. Then, hold the handle 111a with both hands, take out the disposable oil-water separator 100 from the protective housing 200, replace it with a new disposable oil-water separator 100, and place it back into the protective housing 200, and connect the water inlet pipe and the water outlet pipe.
[0045] Alternatively, remove the caps 162, 172 on the upper venting component 160 and the lower venting component 170, empty the housing 100 and clean it through the upper venting component 160 with a faucet or the like, so that the disposable oil-water separator 100 can be reused.
[0046] Those skilled in the art can modify, add, and delete the structures, materials, and methods shown in the above drawings without departing from the protection scope of the claims of the present utility model.
Claims
1. A disposable oil-water separator with a collapsible current-limiting device, characterized in that It includes a disposable oil-water separator formed by welding or blow molding a plastic film. An inlet assembly and a drain assembly are provided on the disposable oil-water separator, and the disposable oil-water separator can be folded up when not in use.
2. The disposable oil-water separator with a collapsible current-limiting device according to claim 1, characterized in that, It further includes a protective housing. When the disposable oil-water separator is in use, it is placed into the opened protective housing, and the inlet assembly and the drain assembly penetrate through the protective housing and are respectively connected to an inlet pipe and an outlet pipe.
3. The disposable oil-water separator with a collapsible current-limiting device according to claim 2, characterized in that, The protective housing includes at least four side plates. Each side plate is connected to the adjacent side plate through a detachable hinge to enclose a space for accommodating the disposable oil-water separator. When the disposable oil-water separator is in use, it is placed in this space.
4. The disposable oil-water separator with a collapsible current-limiting device according to claim 3, wherein, One hole is respectively opened on two relatively arranged side plates, and the inlet assembly and the outlet assembly respectively penetrate through the protective housing from the holes on the two side plates.
5. A disposable oil-water separator with a collapsible current-limiting device according to any one of claims 1 to 4, characterized in that, The disposable oil-water separator further includes a housing for holding water and two partitions. The housing is formed by welding or blow molding a plastic film. The partitions are arranged inside the housing. The first partition is fixedly connected to the inner surface of the first shell wall of the housing, and there is a distance between the first partition and the inner surface of the second shell wall of the housing; the second partition is fixedly connected to the inner surface of the second shell wall of the housing, and there is a distance between the second partition and the inner surface of the first shell wall of the housing; the first shell wall and the second shell wall are arranged oppositely; the inlet assembly and the outlet assembly are respectively fixed on the third shell wall and the fourth shell wall of the housing, and the third shell wall and the fourth shell wall are arranged oppositely.
6. A disposable oil-water separator with a collapsible current-limiting device according to claim 5, characterized in that, The inlet assembly is an inlet tee. One port of the inlet tee is outside the housing, and the other two ports are inside the housing; the outlet assembly is an outlet tee. One port of the outlet tee is outside the housing, and the other two ports are inside the housing.
7. The disposable oil-water separator with a collapsible current-limiting device according to claim 6, characterized in that, A flow-limiting assembly is arranged inside the inlet tee. The flow-limiting assembly is used to limit the flow rate of the oily wastewater entering the housing not to exceed the rated flow rate of the disposable oil-water separator.
8. A disposable oil-water separator with a collapsible current-limiting device according to claim 7, characterized in that, The flow-limiting assembly is a thin sheet installed on the inner side of one port of the inlet tee. A flow-limiting hole is opened on the thin sheet, and the flow rate limited by the opening size of the flow-limiting hole does not exceed the rated flow rate of the disposable oil-water separator.
9. The disposable oil-water separator with a collapsible current-limiting device according to claim 5, characterized in that, The disposable oil-water separator further includes a first emptying assembly and a second emptying assembly. The first emptying assembly and the second emptying assembly are respectively arranged on the first shell wall and the second shell wall and communicate the inside and outside of the housing.
10. A disposable oil-water separator with a collapsible current-limiting device according to claim 9, characterized in that, Both the first emptying assembly and the second emptying assembly include an emptying pipe and a lid covering one end of the emptying pipe exposed outside the housing.