Improved protein separator

Abstract

The utility model relates to the field of water treatment equipment, in particular to an improved protein separator which comprises a separation tank and a jet pump, an inlet of the jet pump is communicated with the lower portion of the separation tank, the downstream of the jet pump is sequentially connected with a jet device and an ejector, and the ejector is located in the separation tank. The jet device and an air suction port of the jet device are both located in the transition box. An air inlet is formed in the upper portion of the transition box and connected with an external air source. The transition box is provided with a drainage port. The transition box, the jet device and the air suction port of the jet device are all located in the transition box, and the air inlet of the transition box is connected with an external air source, so that once an accident occurs, a liquid medium is sprayed out of the air suction port of the jet device, and the liquid medium can be sprayed into the transition box and cannot flow back into front-end equipment along the air inlet pipeline; therefore, equipment damage is avoided, the air inlet pipe does not need to be lifted, the requirement for the longitudinal space of a site is not high, and the risk of liquid backflow can be completely eradicated.

Description

Technical Field

[0001] The utility model relates to the field of water treatment equipment, in particular to an improved protein separator. Background Art

[0002] In the aquaculture industry and industrial wastewater treatment industry, foam separators (protein separators) and flotation devices are generally used to treat tiny pollutants and variable-soluble organic pollutants that cannot be physically filtered. The separation is mainly achieved by adhering the floating bubbles to the surface. A circulating water pump is usually used in conjunction with a Venturi ejector to bring in gas and form a gas-water mixture.

[0003] The air inlet pipe of the traditional protein skimmer is directly connected to the air inlet of the Venturi ejector. The one-way valve often has poor non-return performance. During operation, particles in the water may block the ejector pores, and improper opening and closing of water valves may cause water to be ejected from the ejector air inlet back to the air pipe and then to the front-end equipment, causing losses.

[0004] Traditional protein skimmers usually have an air inlet pipe that is first raised to a certain height above the working liquid level of the equipment, such as 1.5 meters, and then lowered to the ejector air inlet. Sometimes the site does not have the required height. More importantly, this setting cannot offset the recoil water pressure caused by the working lift of the water pump. Utility Model Content

[0005] In order to solve the problems in the background technology, the utility model provides an improved protein separator.

[0006] The specific technical solution of the utility model is as follows:

[0007] An improved protein skimmer includes a separation tank and a jet pump, wherein the jet pump inlet is connected to the lower part of the separation tank, and the downstream of the jet pump is connected with an ejector and an injector in sequence, and the injector is located in the separation tank. The improved protein skimmer also includes a transition box, wherein the ejector and the air inlet of the ejector are both located in the transition box. An air inlet is provided at the upper part of the transition box, and the air inlet is connected to an external air source. A drain port is provided on the transition box.

[0008] Furthermore, a drain valve is installed on the drain port, and the drain valve controls the water level in the transition box to always be lower than the air inlet.

[0009] Furthermore, it also includes a jet bypass pipeline, which is connected in parallel with the ejector and is provided with a regulating valve.

[0010] Furthermore, an overflow tank is arranged above the separation tank, and the overflow tank comprises an inner tank and an outer tank body, wherein the inner tank is located in the outer tank body, and the separation tank is connected to the inner tank. The top of the inner tank is an open structure, and a sewage outlet is arranged at the bottom of the outer tank body.

[0011] Furthermore, a rotating flushing water jet is arranged around the top of the inner tank, and the rotating flushing water jet can rotate and flush the inner and outer sides of the inner tank. The rotating flushing water jet is connected to the outlet of the jet pump through a flushing water pipe.

[0012] Furthermore, it also includes a water outlet pipe, which is connected to the bottom of the separation tank and extends upward from the bottom of the separation tank, and the highest point of the water outlet pipe is lower than the top of the separation tank.

[0013] Furthermore, a first inspection valve is provided at the front end of the jet pump, and a second inspection valve is provided at the front end of the ejector.

[0014] Furthermore, a drain outlet is provided at the bottom of the separation tank, and a drain valve is installed on the drain outlet.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model sets a transition box, and the ejector and the air intake of the ejector are both located in the transition box. The air intake of the transition box is connected to the external air source. Once an accident occurs and causes the liquid medium to be ejected from the air intake of the ejector, the liquid medium will be sprayed into the transition box, and will not flow back into the front-end equipment along the air intake pipe, thereby avoiding damage to the equipment. There is no need to raise the air intake pipe, the longitudinal space requirement of the site is not high, and the risk of liquid backflow can be completely eliminated.

[0017] 2. By setting a jet bypass pipeline in parallel with the ejector and installing a regulating valve on the jet bypass pipeline, the power of the jet pump can be fully utilized. The bypass pipeline and the ejector pipeline change direction and collide at a high flow rate, causing turbulent secondary mixing and then entering the ejector for tertiary mixing. The regulating valve can also indirectly adjust the ejector air intake and jet state. The dissolved air and foam separation efficiency is more than % higher than that of the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the improved protein skimmer of the utility model;

[0019] Figure 2 It is a schematic diagram of the drain port and the drain port of the utility model;

[0020] Figure 3 This is a position diagram of the injector of the present utility model.

[0021] In the figure: 01-separation tank, 02-jet pump, 03-ejector, 04-injector, 05-transition box, 06-air inlet, 07-drain outlet, 08-drain valve, 09-jet bypass pipeline, 10-regulating valve, 11-overflow tank, 12-inner tank, 13-outer tank body, 14-drain outlet, 15-rotating flushing water knife, 16-flushing water pipe, 17-outlet pipe, 18-first inspection valve, 19-second inspection valve, 20-drain outlet, 21-drain valve, 22-water inlet. DETAILED DESCRIPTION

[0022] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0024] In the description of this embodiment, it should also be noted that, unless otherwise clearly specified and limited, the terms “set”, “connected” and “connected” should be understood in a broad sense.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See also Figures 1 to 3 This embodiment discloses an improved protein skimmer, including a separation tank 01 and a jet pump 02, wherein the inlet of the jet pump 02 is connected to the lower part of the separation tank 01, and the downstream of the jet pump 02 is connected with an ejector 03 and an injector 04 in sequence, and the injector 04 is located in the separation tank 01. A transition box 05 is also included, wherein the ejector 03 and the air inlet of the ejector 03 are both located in the transition box 05. An air inlet 06 is provided at the upper part of the transition box 05, and the air inlet 06 is connected to an external air source. A hydrophobic port 07 is provided on the transition box 05.

[0027] Furthermore, a drain valve 08 is installed on the drain port 07 , and the drain valve 08 controls the water level in the transition box 05 to always be lower than the air inlet 06 .

[0028] When the present embodiment is in use, the jet pump 02 draws the liquid medium from the bottom of the separation tank 01 and pumps it to the rear end. When the liquid medium passes through the ejector 03, the gas is sucked from the transition box 05 through the air inlet, and the gas-liquid mixed fluid is sprayed into the separation tank 01 through the ejector 04, which promotes the conversion of tiny pollutants such as proteins that cannot be physically filtered and soluble organic pollutants into foam and separates them from the liquid medium. While the gas in the transition box 05 is consumed, the gas source replenishes gas into the transition box 05 through the air inlet 06. With the technical solution of the present embodiment, the ejector 03 draws gas from the transition box 05. Once an accident occurs and the liquid medium is ejected from the air inlet of the ejector 03, the liquid medium will be sprayed into the transition box 05, and will not flow back into the front-end equipment along the air intake pipe, thereby avoiding damage to the equipment, without raising the air intake pipe, and the longitudinal space requirement of the site is not high, and the risk of liquid backflow can be completely eliminated. When the water level in the transition box 05 is too high, the steam trap 08 can be automatically opened to discharge the liquid medium. The steam trap 08 is conventional prior art, such as a float type steam trap 08, which will not be expanded here.

[0029] As a further solution of this embodiment: it also includes a jet bypass pipeline 09 , the jet bypass pipeline 09 is connected in parallel with the ejector 03 , and a regulating valve 10 is arranged on the jet bypass pipeline 09 .

[0030] This technical solution can fully utilize the power of the jet pump 02. The jet bypass pipeline 09 and the ejector 03 pipeline change direction and collide at a high flow rate, causing turbulent secondary mixing and then entering the ejector 04 for tertiary mixing. The regulating valve 10 can also indirectly adjust the air intake and jet state of the ejector 03. The dissolved air and foam separation efficiency is more than 20% higher than that of the traditional method.

[0031] As a further solution of this embodiment: an overflow tank 11 is arranged above the separation tank 01, and the overflow tank 11 includes an inner tank 12 and an outer tank body 13. The inner tank 12 is located in the outer tank body 13, and the separation tank 01 is connected to the inner tank 12. The top of the inner tank 12 is an open structure. A sewage outlet 14 is arranged at the bottom of the outer tank body 13. Foam impurities continuously overflow from the top of the inner tank 12 to the outer tank body 13, and then are discharged through the sewage outlet 14.

[0032] Furthermore, a rotating flushing water jet 15 is arranged around the top of the inner tank 12, and the rotating flushing water jet 15 can rotate and flush the inner and outer sides of the inner tank 12. The rotating flushing water jet 15 is connected to the outlet of the jet pump 02 through the flushing water pipe 16. With this technical solution, the power of the jet pump 02 can be directly used to generate a flushing water flow, and the impurity foam in the overflow tank 11 can be flushed regularly.

[0033] As a further solution of this embodiment: it also includes a water inlet 22 and a water outlet pipe 17, the water outlet pipe 17 is connected to the bottom of the separation tank 01, and the water outlet pipe 17 extends upward from the bottom of the separation tank 01, and the highest point of the water outlet pipe 17 is lower than the top of the separation tank 01. The height of the highest point of the water outlet pipe 17 determines the liquid level of the liquid medium in the separation tank 01, and the liquid level needs to be controlled to leave enough reaction space and avoid the liquid level being too high to cause the liquid medium to overflow from the top of the inner tank 12.

[0034] As a further solution of this embodiment: a first inspection valve 18 is provided at the front end of the jet pump 02, and a second inspection valve 19 is provided at the front end of the ejector 04. During inspection, the first inspection valve 18 and the second inspection valve 19 are closed to isolate the jet pump 02, the ejector 03, the transition box 05, and the jet bypass pipeline 09 from the internal space of the separation tank 01.

[0035] As a further solution of this embodiment: a drain port 20 is provided at the bottom of the separation tank 01, and a drain valve 21 is installed on the drain port 20 for discharging the dirt remaining in the separation tank 01 after the operation is completed.

[0036] The above only describes in detail the preferred embodiments of the present invention, which is 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. An improved protein skimmer, comprising a separation tank (01) and a jet pump (02), wherein the inlet of the jet pump (02) is connected to the lower part of the separation tank (01), and the downstream of the jet pump (02) is connected with an ejector (03) and an injector (04) in sequence, wherein the injector (04) is located in the separation tank (01), characterized in that: It also includes a transition box (05), wherein the ejector (03) and the air intake port of the ejector (03) are both located in the transition box (05); an air inlet (06) is provided on the upper part of the transition box (05), and the air inlet (06) is connected to an external air source; and a drain port (07) is provided on the transition box (05).

2. The improved protein skimmer according to claim 1, characterized in that: A drain valve (08) is installed on the drain port (07), and the drain valve (08) controls the water level in the transition box (05) to always be lower than the air inlet (06).

3. The improved protein skimmer according to claim 1, characterized in that: It also comprises a jet bypass pipeline (09), the jet bypass pipeline (09) is connected in parallel with the ejector (03), and a regulating valve (10) is arranged on the jet bypass pipeline (09).

4. The improved protein skimmer according to claim 1, characterized in that: An overflow tank (11) is arranged above the separation tank (01), and the overflow tank (11) comprises an inner tank (12) and an outer tank body (13); the inner tank (12) is located inside the outer tank body (13), and the separation tank (01) is connected to the interior of the inner tank (12); the top of the inner tank (12) is an open structure; and a sewage outlet (14) is arranged at the bottom of the outer tank body (13).

5. The improved protein skimmer according to claim 4, characterized in that: A rotating flushing water jet (15) is arranged around the top of the inner tank (12), and the rotating flushing water jet (15) can rotate to flush the inner and outer sides of the inner tank (12); the rotating flushing water jet (15) is connected to the outlet of the jet pump (02) through a flushing water pipe (16).

6. The improved protein skimmer according to claim 1, characterized in that: It also includes a water outlet pipe (17), which is connected to the bottom of the separation tank (01) and extends upward from the bottom of the separation tank (01), and the highest point of the water outlet pipe (17) is lower than the top of the separation tank (01).

7. The improved protein skimmer according to claim 1, characterized in that: A first inspection valve (18) is provided at the front end of the jet pump (02), and a second inspection valve (19) is provided at the front end of the ejector (04).

8. The improved protein skimmer according to claim 1, characterized in that: The bottom of the separation tank (01) is provided with a drain port (20), and a drain valve (21) is installed on the drain port (20).

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