CN220265380U - Novel automatic oil-water separator - Google Patents

Abstract

The utility model relates to a novel automatic oil-water separator relates to oil-water separator's field, it includes coarse filtration case, separator box and demulsifier storage jar, be provided with oil-water separation room and reservoir chamber in the separator box, the intercommunication is provided with the inlet channel between oil-water separation room and the coarse filtration case, the intercommunication is provided with outlet channel between reservoir chamber and the municipal drainage, the intercommunication is provided with demulsifier pipeline between demulsifier storage jar and the oil-water separation room, be provided with temperature sensor in the coarse filtration case, be provided with the water pump that is used for extracting sewage according to the settlement velocity of flow on the inlet channel, be provided with on the demulsifier pipeline and throw the valve, temperature sensor signal connection has the singlechip, the output of singlechip is connected with throwing the valve control, according to the aperture of sewage temperature singlechip control throwing the valve. The oil-water separator has the effects of separating emulsified oil and oil by the aid of the oil-water separator.

Description

Novel automatic oil-water separator

Technical Field

The application relates to the field of oil-water separators, in particular to a novel automatic oil-water separator.

Background

In oily sewage (hereinafter referred to as "restaurant wastewater") in kitchen waste, the components and existence forms of grease are complex, and the grease generally exists in the main forms of suspended oil, dispersed oil, emulsified oil, dissolved oil, oily solid waste and the like, wherein the grease which is in an emulsified state with high concentration is the most difficult to treat.

The current degreasing technology can be categorized into 4 general categories: physical separation (such as gravity separation technique, filtration separation technique, coarse-grain separation technique, membrane separation technique, etc.), chemical separation (such as flocculation precipitation separation technique, electrolytic separation technique, acidification separation technique, etc.), physicochemical separation (such as flotation separation technique, adsorption separation technique, magnetic adsorption separation technique, etc.), and biochemical separation (such as activated sludge separation technique, biological membrane separation technique, etc.).

In the existing catering industry, an oil-water separator is often used for separation. The oil-water separator mainly comprises a separating box, wherein a coarse filtering chamber, an oil-water separating chamber and a water storage chamber are formed in the separating box by separating two partition boards, and a space for sewage circulation is formed between the two partition boards and the bottom of the box body. Wherein, the intercommunication is provided with the inlet channel on the lateral wall of thick filter chamber, and the intercommunication is provided with outlet channel on the lateral wall of reservoir chamber, and outlet end and municipal administration blow off pipeline intercommunication of outlet channel.

The kitchen wastewater enters a filter screen to carry out a re-filtration operation after preliminary filtration, the sewage after the secondary filtration flows to an oil-water separation chamber, an air floatation machine is arranged on the side wall of the bottom of the oil-water separation chamber, oil in the kitchen wastewater is suspended to the middle upper layer part of the oil-water separation chamber under the action of the air floatation machine, water stays at the lower layer and flows out through a water outlet pipeline, the side wall of the oil-water separation chamber, which is close to the upper layer, is communicated with an oil discharge pipeline, the liquid outlet end of the oil discharge pipeline is communicated with an oil storage tank, the oil in the upper layer of the oil-water separation chamber flows into the oil storage tank through the oil discharge pipeline, the oil-water separation effect can be realized, and the recovered oil can be reserved for later use after treatment.

In the actual production and processing process, oil in kitchen sewage is often emulsified to form smaller particles to be dispersed in water, and oil-water separation is difficult to realize through an air floatation machine, so that demulsifiers are often added into an oil-water separation water tank, oil dirt particles formed by emulsification in sewage are coagulated into larger particles or flaky oil, and a good oil-water separation effect can be obtained through the air floatation machine. However, in the existing oil-water separator, the demulsifier is added into the sewage according to the fixed adding amount, the demulsification effect of the demulsifier is influenced by two factors of sewage temperature and sewage flow rate, the kitchen sewage temperature difference is large, the water flow rate of the use peak is different from that of the use low peak, when the temperature is low or the water flow rate is too fast, the demulsifier added by the fixed amount is difficult to realize good demulsification effect, and finally the sewage flowing out through the water outlet pipeline is difficult to reach the discharge standard, so that improvement exists.

Disclosure of Invention

In order to promote the demulsification effect of demulsifier in the oil water separator, guarantee that the clear water that outlet conduit flows is in emission standard within, this application provides a novel automatic oil water separator.

The application provides a novel automatic oil-water separator adopts following technical scheme:

the novel automatic oil-water separator comprises a coarse filter tank, a separation tank and a demulsifier storage tank, wherein a partition plate is erected and fixed in the separation tank, an oil-water separation chamber and a water storage chamber are formed in the separation tank in a separated mode, and a space for the separated water to circulate is formed between the partition plate and the inner bottom wall of the separation tank;

a water inlet pipeline is communicated between the oil-water separation chamber and the coarse filter tank, a demulsifier pipeline is communicated between the demulsifier storage tank and the oil-water separation chamber, and a feeding valve for controlling the feeding opening of the demulsifier is arranged on the demulsifier pipeline; and:

the water pump is arranged on the water inlet pipeline and is used for pumping sewage to flow into the separation box according to a set flow rate;

the temperature sensor is fixedly connected with the inner side wall of the coarse filter box and is used for detecting the temperature of sewage passing through the coarse filter box and outputting a sewage temperature signal;

the control module is in signal connection with the temperature sensor and is used for receiving the sewage temperature signal and outputting an opening degree adjusting signal;

the adding valve is in signal connection with the signal output end of the control module, and the adding valve receives the opening adjusting signal and adjusts the opening.

By adopting the technical scheme, in the normal process of carrying out oil-water separation on kitchen wastewater, sewage enters the coarse filtration tank through the drainage pipeline, the water body flowing into the oil-water separation chamber through the water inlet pipeline and flowing into the water storage chamber and the water outlet pipeline always maintains a constant flow rate through the water inlet pipeline, the pipeline flow speed is controlled to be a flow rate suitable for demulsification, so that the demulsifier is fully contacted with the sewage, and the influence on the oil demulsification effect caused by sewage flow rate change due to water use peaks or water use low peaks can be effectively avoided; meanwhile, in the process that kitchen sewage flows into the oil-water separation tank through the water inlet pipeline, the temperature sensor detects the sewage temperature and outputs a sewage temperature signal, the control module receives the sewage temperature signal and adjusts the opening of the feeding valve, if the sewage temperature is lower, the opening of the feeding valve is increased, so that the amount of demulsifiers flowing into the oil-water separation chamber is increased, the oil content emulsified in the sewage is fully demulsified, and the water discharged into the municipal sewage system through the water outlet pipeline is ensured to be within the discharge standard range; if the sewage temperature is higher, the opening of the feeding valve is properly adjusted to reduce the demulsification amount flowing into the oil-water separation chamber, so that the demulsifier is avoided being wasted, and the cost of the oil-water separation is saved. Through mutual overlapping and use among water pump, temperature sensor, control module and the throwing valve, can ensure that the sewage velocity of flow that gets into the oil water separator indoor is in the velocity of flow that is suitable for the demulsification all the time, guarantee the abundant demulsification of emulsified oil in the sewage simultaneously, can effectively promote oil water separator's separation effect.

Preferably, the control module comprises a single chip microcomputer, a signal input end of the single chip microcomputer is in signal connection with the temperature sensor, a signal output end of the single chip microcomputer is in signal connection with the adding valve, and the single chip microcomputer is preloaded with a program for calculating the opening of the adding valve according to the sewage temperature.

Through adopting above-mentioned technical scheme, through the singlechip, can be fast and accurate according to the aperture of the department's throwing valve of the temperature calculation of sewage in the coarse filtration case, realize increasing or reducing the technological effect of demulsifier dosage according to sewage temperature.

Preferably, the liquid outlet end of the demulsifier pipeline extends into the oil-water separation chamber, and the liquid outlet end of the demulsifier pipeline is erected above an air floatation machine in the oil-water separation chamber.

Through adopting above-mentioned technical scheme, because demulsifier pipeline's play liquid end erects in the air supporting machine top, through the effect of air supporting machine, can promote the speed of demulsifier diffusion in sewage, and then make the oil content of demulsifier and emulsification in the sewage fully contact.

Preferably, a check valve is arranged on the demulsifier pipeline, and the check valve is positioned between the feeding valve and the separation box.

By adopting the technical scheme, the check valve can effectively reduce the occurrence of the condition that sewage in the oil-water separation chamber flows back into the demulsifier tank through the demulsifier pipeline.

Preferably, the liquid outlet end of the water inlet pipeline is connected with the side wall of the separation box close to the bottom, and the liquid outlet end of the water inlet pipeline is communicated with the oil-water separation chamber.

By adopting the technical scheme, as the liquid outlet end of the water inlet pipeline is communicated with the side wall of the separation box close to the bottom, the sewage flowing into the oil-water separation chamber keeps flowing upwards, and the gas discharged by the air flotation machine follows the flow direction of the sewage, so that the effect of separating oil components by the air flotation machine can be improved.

Preferably, an opening communicated with an external drainage pipeline is formed in the coarse filtering box, and a filtering net is detachably and fixedly connected to the opening.

Through adopting above-mentioned technical scheme, the filter screen can filter the solid particulate matter that carries in the sewage that gets into coarse filtration incasement, reduces that solid particulate matter from piling up and leads to the condition emergence of inlet channel, drainage pipe and oil drainage pipeline jam, and because the filter screen can dismantle fixed mounting on coarse filtration case, the constructor can regularly dismantle the filter screen and wash, ensures that the filter screen is normally filtered.

To sum up, the application comprises the following beneficial technical effects of at least one novel automatic oil-water separator:

1. the coarse filter tank and the separation tank are arranged in a split mode, sewage is extracted through the water pump according to a set flow rate, so that the flow rate of the sewage flowing out through the oil-water separation chamber and the water storage chamber is always at a flow rate suitable for demulsification, the sewage is fully contacted with the demulsifier in the process of passing through the oil-water separation chamber, emulsified oil in the sewage is fully demulsified, and the oil-water separation effect of the oil-water separator is improved;

2. the temperature sensor, the singlechip and the feeding valve are mutually matched and used, so that the feeding amount of the demulsifier fed into the sewage can be controlled according to the temperature of the sewage, and the full emulsification of the emulsified oil in the sewage is further ensured;

3. through the arrangement of the inlet pipeline close to the bottom wall of the separation box, the sewage entering the oil-water separation chamber can keep the upward flowing direction, so that gas sprayed by the air floatation machine is fully diffused in the sewage, and the oil-water separation effect of the oil-water separator is improved.

Drawings

Fig. 1 is a schematic diagram mainly used for showing the connection position relationship between a coarse filtration tank and a separation tank in the embodiment of the application.

Fig. 2 is a schematic diagram mainly used for showing the connection relationship between the separation tank and the demulsifier storage tank in the embodiment of the application.

Fig. 3 is a schematic diagram mainly used for illustrating internal signal transmission of an oil-water separator in the embodiment of the application.

Reference numerals illustrate: 1. a coarse filtration tank; 11. an opening; 12. an extension plate; 13. a receiving plate; 14. a filter screen; 2. a separation box; 21. an oil-water separation chamber; 22. a water storage chamber; 23. a partition plate; 24. a water inlet pipe; 25. a water outlet pipe; 3. a demulsifier storage tank; 31. a demulsifier pipeline; 32. a feeding valve; 4. a water pump; 6. an air floatation machine; 7. a check valve.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a novel automatic oil-water separator. Referring to fig. 1, the oil-water separator mainly comprises a coarse filter tank 1, a separation tank 2 and a demulsifier storage tank 3.

Wherein, the one side that coarse filtration case 1 kept away from the ground has seted up the opening 11 that supplies sewage to get into, integrated into one piece has extension board 12 on the top inside wall of coarse filtration case 1, and extension board 12 is located opening 11 side, on the lateral wall that is opposite with extension board 12 on the coarse filtration case 1, on the extension board 12 all fixedly connected with two accept board 13, two accept board 13 and be relative setting.

A filter screen is placed on the receiving plate 13, and two sides of the filter screen are abutted between the extension plate 12 and the inner side wall of the coarse filter tank 1. The filter screen 14 can filter the solid particulate matter carried in the sewage entering the coarse filtration tank 1, reduces the condition that the solid particulate matter is accumulated to cause the blockage of the water inlet pipeline 24, the water discharge pipeline and the oil discharge pipeline, and because the filter screen 14 is detachably and fixedly arranged on the coarse filtration tank 1, a producer can regularly detach the filter screen and clean the filter screen, so that the filter screen can be ensured to normally and normally filter.

Referring to fig. 1, a partition plate 23 is integrally formed in the separation tank 2, the partition plate 23 separates the separation tank 2 into an oil-water separation chamber 21 and a water storage chamber 22, and the air floatation machine 6 is located at the bottom of the oil-water separation chamber 21.

A water inlet pipeline 24 is communicated between the coarse filter tank 1 and the separation tank 2, and a liquid outlet end of the water inlet pipeline 24 is connected with the side surface of the separation tank 2, which is close to the bottom; the water storage chamber 22 is communicated with a water outlet pipeline 25, and the liquid outlet end of the water outlet pipeline 25 is communicated with a municipal sewage system; and a demulsifier pipeline 31 is communicated between the demulsifier storage tank 3 and the oil-water separation chamber 21, and a feeding valve 32 is arranged on the demulsifier pipeline 31.

Because the liquid outlet end of the water inlet pipe 24 is communicated with the side wall of the separation tank 2 close to the bottom, the sewage flowing into the oil-water separation chamber 21 keeps flowing upwards, and the gas discharged by the air flotation machine 6 follows the flow direction of the sewage, so that the effect of separating oil components by the air flotation machine 6 can be improved.

Referring to fig. 1, a water pump 4 for pumping sewage is provided on the water inlet pipe 24. In the normal process of carrying out oil-water separation on kitchen wastewater, sewage enters the coarse filtration tank 1 through the drainage pipeline, and through the water pump 4 on the water inlet pipeline 24, the water body flowing into the oil-water separation chamber 21 through the water inlet pipeline 24 and flowing into the water storage chamber 22 and the water outlet pipeline 25 always keeps constant flow rate, and the pipeline flow rate is controlled to be the flow rate suitable for demulsification, so that the demulsifier is fully contacted with the sewage, and the influence on the oil demulsification effect caused by sewage flow rate change caused by water use peaks or water use low peaks can be effectively avoided.

In order to further improve the oil-water separation effect, referring to fig. 1, 2 and 3, a temperature sensor is fixedly connected to the inner side wall of the coarse filtration tank 1 through a screw, a signal output end of the temperature sensor is in signal connection with a control module, in the embodiment of the application, the control module is a single chip microcomputer, and a signal output end of the single chip microcomputer is in signal connection with the adding valve 32.

In the process that the kitchen sewage flows into the oil-water separation tank 2 through the water inlet pipeline 24, the temperature sensor detects the sewage temperature and outputs a sewage temperature signal, and the singlechip receives the sewage temperature signal and adjusts the opening of the dosing valve 32.

If the sewage temperature is lower, the opening of the adding valve 32 is increased, so that the amount of demulsifier flowing into the oil-water separation chamber 21 is increased, the oil content emulsified in the sewage is fully demulsified, and the water discharged into the municipal sewage system through the water outlet pipeline 25 is ensured to be within the discharge standard range.

If the sewage temperature is higher, the opening of the adding valve 32 is properly adjusted to reduce the demulsification amount flowing into the oil-water separation chamber 21, thereby avoiding waste of demulsifiers and saving the cost of oil-water separation.

Through the mutual overlapping and use among the water pump 4, the temperature sensor, the singlechip and the adding valve 32, the sewage flow rate entering the oil-water separation chamber 21 can be ensured to be always at the flow rate suitable for demulsification, and meanwhile, the oil content emulsified in the sewage is ensured to be fully demulsified, so that the separation effect of the oil-water separator can be effectively improved.

It should be noted that, in the embodiment of the present application, the singlechip is preloaded with a program for calculating the opening of the addition valve 32 according to the temperature, which is in the prior art, and is not optimized in this regard, in some other embodiments, a PLC controller or an ARM chip may be used instead, and details are not described herein.

Referring to fig. 2, in the embodiment of the present application, the liquid outlet end of the demulsifier pipe 31 extends above the air flotation machine 6 in the oil-water separation chamber 21.

Because the liquid outlet end of the demulsifier pipeline 31 is erected above the air floatation machine 6, the speed of the demulsifier in the sewage can be increased under the action of the air floatation machine 6, and the demulsifier is fully contacted with oil components emulsified in the sewage.

Referring to fig. 2, in the embodiment of the present application, a check valve 7 is provided on the breaker pipe 31. The check valve 7 can effectively reduce the occurrence of the condition that sewage in the oil-water separation chamber 21 flows back into the demulsifier tank through the demulsifier pipeline 31.

The implementation principle of the novel automatic oil-water separator in the embodiment of the application is as follows: through the split arrangement of the coarse filter tank 1 and the separation tank 2, the sewage is extracted through the water pump 4 according to a set flow rate, so that the flow rate of the sewage flowing out through the oil-water separation chamber 21 and the water storage chamber 22 is always at a flow rate suitable for demulsification, the sewage is fully contacted with the demulsifier in the process of passing through the oil-water separation chamber 21, emulsified oil in the sewage is fully demulsified, and the oil-water separation effect of the oil-water separator is improved; the temperature sensor, the singlechip and the adding valve 32 are mutually matched and used, so that the adding amount of the demulsifier added into the sewage can be controlled according to the temperature of the sewage, and the sufficient emulsification of the emulsified oil in the sewage is further ensured.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (6)

1. The novel automatic oil-water separator is characterized by comprising a coarse filter tank (1), a separation tank (2) and a demulsifier storage tank (3), wherein a partition plate (23) is erected and fixed in the separation tank (2), an oil-water separation chamber (21) and a water storage chamber (22) are formed in the separation tank (2) in a separated mode, and a space for water circulation after separation is formed between the partition plate (23) and the inner bottom wall of the separation tank (2);

a water inlet pipeline (24) is communicated between the oil-water separation chamber (21) and the coarse filter tank (1), a demulsifier pipeline (31) is communicated between the demulsifier storage tank (3) and the oil-water separation chamber (21), and a feeding valve (32) for controlling the feeding opening of the demulsifier is arranged on the demulsifier pipeline (31); and:

a water pump (4) arranged on the water inlet pipeline (24) and used for pumping sewage to flow into the separation box (2) according to a set flow rate;

the temperature sensor is fixedly connected with the inner side wall of the coarse filter box (1) and is used for detecting the temperature of sewage passing through the coarse filter box (1) and outputting a sewage temperature signal;

the control module is in signal connection with the temperature sensor and is used for receiving the sewage temperature signal and outputting an opening degree adjusting signal;

the adding valve (32) is in signal connection with a signal output end of the control module, and the adding valve (32) receives the opening adjusting signal and adjusts the opening.

2. The novel automatic oil-water separator according to claim 1, wherein the control module comprises a single chip microcomputer, a signal input end of the single chip microcomputer is in signal connection with the temperature sensor, a signal output end of the single chip microcomputer is in signal connection with the adding valve (32), and the single chip microcomputer is preloaded with a program for calculating the opening of the adding valve (32) according to the sewage temperature.

3. The novel automatic oil-water separator according to claim 2, wherein the liquid outlet end of the demulsifier pipeline (31) extends into the oil-water separation chamber (21), and the liquid outlet end of the demulsifier pipeline (31) is erected above the air flotation machine (6) in the oil-water separation chamber (21).

4. A novel automatic oil-water separator according to claim 3, characterized in that the demulsifier pipeline (31) is provided with a check valve (7), and the check valve (7) is located between the dosing valve (32) and the separator tank (2).

5. The novel automatic oil-water separator according to claim 1, wherein the liquid outlet end of the water inlet pipe (24) is connected with the side wall of the separation tank (2) close to the bottom, and the liquid outlet end of the water inlet pipe (24) is communicated with the oil-water separation chamber (21).

6. The novel automatic oil-water separator according to claim 1, wherein an opening (11) communicated with an external drainage pipeline is formed in the coarse filtering box (1), and a filter screen (14) is detachably and fixedly connected to the opening (11).