A foam eliminating device

Abstract

The utility model discloses a kind of foam elimination devices, comprising: shell, accommodating cavity is defined in shell;Water inlet component, water inlet is opened at the lower end position of accommodating cavity, water inlet component is set in accommodating cavity, and water inlet component is communicated with external water supply by water inlet;Air inlet pipe, air inlet is opened on accommodating cavity, air inlet pipe one end is communicated with air inlet, and other end is communicated with the intermediate position of water inlet component;Water outlet pipe, water outlet is opened on accommodating cavity, water outlet pipe one end is communicated with water inlet component in the end away from water inlet, and other end is communicated with water outlet;Discharge pipe, discharge port is opened at the upper end position of accommodating cavity, discharge pipe one end is communicated with discharge port, and other end is communicated with water inlet component, and discharge pipe is located at the intermediate position of air inlet pipe and water outlet pipe. Its simple structure can effectively improve the speed of foam liquid removal and separation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air flotation separation technology, and in particular to a foam elimination device. Background Technology

[0002] Air flotation is a technology that uses air bubbles to adsorb and float substances in a liquid. It is commonly used in fields that require the separation of substances, such as water purification, waste liquid purification, extraction of microorganisms from water, extraction of organic matter from water, aquaculture purification, or mineral powder flotation.

[0003] Currently, foam removal in water is generally achieved through methods such as collecting and discharging foam from the cavity via flotation or using scrapers, but both methods have certain limitations. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a foam elimination device with a simple structure, which can effectively improve the speed of foam dewatering and separation efficiency.

[0005] The above objective is achieved through the following technical solution:

[0006] A foam elimination device, comprising:

[0007] A housing, within which a receiving cavity is defined;

[0008] The water inlet assembly has a water inlet at the lower end of the receiving cavity, the water inlet assembly is disposed in the receiving cavity, and the water inlet assembly is connected to an external water supply through the water inlet;

[0009] An air inlet pipe is provided on the receiving cavity. One end of the air inlet pipe is connected to the air inlet, and the other end is connected to the middle position of the water inlet assembly.

[0010] The water outlet pipe has an outlet on the receiving cavity. One end of the water outlet pipe is connected to the end of the water inlet assembly away from the water inlet, and the other end is connected to the water outlet.

[0011] The discharge pipe has a discharge port at the upper end of the receiving cavity. One end of the discharge pipe is connected to the discharge port, and the other end is connected to the water inlet assembly. The discharge pipe is located at the middle position between the air inlet pipe and the water outlet pipe.

[0012] In some embodiments, the water inlet assembly includes an inlet pipe, a connecting pipe, and a branch pipe, wherein one end of the inlet pipe is connected to an external water supply through the inlet port, and the other end is connected to the branch pipe through the connecting pipe; the air inlet pipe is connected to the connecting pipe at the end away from the air inlet port; the branch pipe is connected to the outlet pipe at the end away from the connecting pipe; and the discharge pipe is connected to the branch pipe at the end away from the discharge port.

[0013] In some embodiments, the connecting pipe includes an inlet section, a constriction section, a throat section, and a diffuser section, wherein one end of the inlet section is connected to the water inlet pipe at the end away from the water inlet, and the other end is connected to the constriction section, the diameter of the constriction section gradually decreasing along the water inlet direction; the constriction section at the end away from the inlet section is connected to the throat section; the throat section at the end away from the constriction section is connected to the diffuser section; and the diffuser section at the end away from the throat section is connected to the diversion pipe, the diameter of the diffuser section gradually increasing along the water inlet direction.

[0014] In some embodiments, there are two diversion pipes, with an outlet at each of the left and right ends of the receiving cavity. The input ends of the two diversion pipes are connected to the connecting pipe at the end away from the inlet pipe, and the output ends of the two diversion pipes are connected to the two outlets respectively.

[0015] In some embodiments, the water inlet assembly further includes a water pump connected to the water inlet.

[0016] In some embodiments, the height of the inlet is lower than the height of the outlet, and the height of the outlet is lower than the height of the discharge outlet.

[0017] In some embodiments, a connecting pipe connected to the discharge port is also included. There are multiple discharge pipes, the lower ends of which are connected to the water inlet assembly, and the upper ends of which are respectively connected to the connecting pipe.

[0018] In some embodiments, the discharge pipe includes a thick pipe section and a thin pipe section, wherein the diameter of the thick pipe section is larger than the diameter of the thin pipe section, the lower end of the thick pipe section is connected to the water inlet assembly, and its upper end is connected to the connecting pipe through the thin pipe section.

[0019] In some embodiments, an air pump is also included, which is connected to the air inlet.

[0020] In some embodiments, a mounting base is also included, through which the water inlet assembly is mounted within the receiving cavity.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] 1. The foam elimination device of this utility model has a simple structure and can effectively improve the speed of foam dehydration and separation efficiency. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the foam elimination device in an embodiment of this utility model;

[0025] Figure 2 This is a first structural schematic diagram of the foam elimination device in this embodiment of the present invention;

[0026] Figure 3 This is a second structural schematic diagram of the foam elimination device in an embodiment of this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of the claimed invention.

[0029] Example:

[0030] like Figure 1 As shown in Figure 3, this embodiment provides a foam elimination device, including:

[0031] The housing 1 defines a receiving cavity within the housing 1;

[0032] The water inlet assembly 2 has a water inlet 11 at the lower end of the receiving cavity. The water inlet assembly 2 is installed inside the receiving cavity and is connected to the external water supply through the water inlet 11.

[0033] The air inlet pipe 3 has an air inlet 12 on the receiving cavity. One end of the air inlet pipe 3 is connected to the air inlet 12, and the other end is connected to the middle position of the water inlet assembly 2.

[0034] The water outlet pipe 4 has an outlet 13 on the receiving cavity. One end of the water outlet pipe 4 is connected to the end of the water inlet assembly 2 away from the water inlet 11, and the other end is connected to the outlet 13.

[0035] The discharge pipe 5 has a discharge port 14 at the upper end of the receiving cavity. One end of the discharge pipe 5 is connected to the discharge port 14, and the other end is connected to the water inlet assembly 2. The discharge pipe 5 is located in the middle of the air inlet pipe 3 and the water outlet pipe 4.

[0036] In this embodiment, a hollow cavity is defined within the housing 1 to form a receiving cavity. An inlet 11, an air inlet 12, a water outlet 13, and a discharge outlet 14 are respectively provided on the front wall of the receiving cavity. An inlet assembly 2, an air inlet pipe 3, a water outlet pipe 4, and a discharge pipe 5 are respectively arranged within the receiving cavity. The inlet end of the inlet assembly 2 is connected to an external water supply through the inlet 11, and its output end is connected to the inlet end of the water outlet pipe 4 to deliver the water to be separated to the water outlet pipe 4. The output end of the water outlet pipe 4 is connected to the outside through the water outlet 13 to discharge the liquid after air flotation separation. One end of the air inlet pipe 3 is connected to the air inlet 12, and the other end is connected to the middle position of the inlet assembly 2 to deliver gas to the inlet assembly 2. The upper end of the discharge pipe 5 is connected to... The discharge port 14 is connected to the water inlet assembly 2 at its lower end, and the lower end of the discharge pipe 5 is located in the middle of the air inlet pipe 3 and the water outlet pipe 4 to discharge the foam after air flotation separation. When the water to be separated by air flotation is delivered into the water inlet assembly 2, the air pump blows air into the water inlet assembly 2 through the air inlet pipe 3, so that the water and air are mixed to agitate the foam in the water. Thus, the water in the water is discharged out through the water outlet 13, and the foam in the water is discharged out through the discharge port 14, thereby achieving air flotation separation of the water and separating the water and foam in the water to achieve the purpose of eliminating foam. Its structure is simple and can effectively improve the speed of foam desolvation and separation efficiency.

[0037] Furthermore, the water inlet assembly 2 includes an inlet pipe 21, a connecting pipe 22, and a branch pipe 23. One end of the inlet pipe 21 is connected to an external water supply through an inlet 11, and the other end is connected to the branch pipe 23 through the connecting pipe 22. The air inlet pipe 3 is connected to the connecting pipe 22 at the end away from the air inlet 12. The branch pipe 23 is connected to the outlet pipe 4 at the end away from the connecting pipe 22. The discharge pipe 5 is connected to the branch pipe 23 at the end away from the discharge port 14.

[0038] Specifically, the connecting pipe 22 includes an inlet section 221, a contraction section 222, a throat section 223, and a diffuser section 224. One end of the inlet section 221 is connected to the water inlet pipe 21 at the end away from the water inlet 11, and the other end is connected to the contraction section 222, the diameter of which gradually decreases along the water inlet direction. The contraction section 222 is connected to the throat section 223 at the end away from the inlet section 221. The throat section 223 is connected to the diffuser section 224 at the end away from the contraction section 222. The diffuser section 224 is connected to the branch pipe 23 at the end away from the throat section 223, and the diameter of which gradually increases along the water inlet direction.

[0039] Preferably, there are two diversion pipes 23, with an outlet 13 opened at each of the left and right ends of the receiving cavity. The input ends of the two diversion pipes 23 are connected to the end of the connecting pipe 22 away from the inlet pipe 21, and the output ends of the two diversion pipes 23 are connected to the two outlets 13 respectively.

[0040] Furthermore, the water inlet assembly 2 also includes a water pump 24, which is connected to the water inlet 11.

[0041] Specifically, the height of the inlet 11 is lower than the height of the outlet 13, and the height of the outlet 13 is lower than the height of the discharge outlet 14.

[0042] Preferably, it also includes a connecting pipe 6 connected to the discharge port 14. There are multiple discharge pipes 5, the lower ends of which are connected to the water inlet assembly 2, and the upper ends of which are connected to the connecting pipe 6 respectively.

[0043] Preferably, the discharge pipe 5 includes a thick pipe section 51 and a thin pipe section 52, wherein the diameter of the thick pipe section 51 is larger than the diameter of the thin pipe section 52, the lower end of the thick pipe section 51 is connected to the water inlet assembly 2, and its upper end is connected to the connecting pipe 6 through the thin pipe section 52.

[0044] Furthermore, it also includes an air pump, which is connected to the air inlet 12.

[0045] Specifically, it also includes a mounting base 7, through which the water inlet assembly 2 is mounted within the receiving cavity.

[0046] In this embodiment, one end of the inlet pipe 21 is connected to the external water supply through the inlet port 11, and the other end is connected to the connecting pipe 22, which has a Venturi tube structure. The end of the connecting pipe 22 away from the inlet pipe 21 is connected to the input end of the two diversion pipes 23 respectively, thereby increasing the flow rate through the Venturi effect of the connecting pipe 22. At the same time, a negative pressure is formed at the connecting pipe 22 to facilitate the intake of air by the air inlet pipe 3, thereby mixing the gas and liquid together. Since the two diversion pipes 23 are located at the left and right ends of the receiving cavity respectively, the two diversion pipes 23 can divert the water flow of the connecting pipe 22. At the same time, the output ends of the two diversion pipes 23 are respectively connected to the two outlet ports 13. In addition, since the connecting pipes 6 are respectively provided at the left and right ends of the receiving cavity, and one end of the connecting pipe 6 is connected to the discharge port 14, and the other end is a closed end, the lower end of which is connected to multiple discharge pipes 5. The lower ends of the multiple discharge pipes 5 are respectively connected to the corresponding diversion pipes 23.

[0047] Furthermore, since the height of the inlet 11 is lower than the height of the outlet 13, and the height of the outlet 13 is lower than the height of the discharge outlet 14, the inlet 11, air inlet 12, outlet 13, and discharge outlet 14 are sequentially arranged from bottom to top on the front wall of the receiving cavity. The inlet pipe 21 is connected to an external water supply through the inlet 11 to deliver external water into the inlet pipe 21. A water pump 24 or a jet pump can also be installed at the inlet 11 to quickly deliver external water into the inlet pipe 21. Secondly, one end of the air inlet pipe 3 is connected to the air inlet 12, and the other end is connected to the connecting pipe 22, thus allowing gas to be delivered to the connecting pipe 22. Alternatively, an air pump or blower can be installed at the air inlet 12 to quickly deliver external gas to the connecting pipe 22.

[0048] Specifically, when the water pump 24 delivers the water to be separated by air flotation to the connecting pipe 22 through the inlet pipe 21, the air pump simultaneously blows air into the water flow in the connecting pipe 22 through the air inlet pipe 3. This creates a negative pressure in the connecting pipe 22, causing the water flow and air to mix and agitate the foam in the water flow. Then, the water flow is divided by the two diversion pipes 23, further improving the separation speed of foam desolvation. The water flow in the diversion pipe 23 continues to flow towards the outlet pipe 4. During the flow of the water flow in the diversion pipe 23, the foam in the water flow can be discharged to the outlet 14 through the discharge pipe 5. At the same time, the water in the water flow is discharged outward through the outlet pipe 4 and the outlet 13 in sequence. This achieves air flotation separation of the water, thereby separating the water and foam in the water to eliminate the foam and effectively improve the separation effect of foam desolvation.

[0049] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A foam elimination device, comprising: A housing (1) having a receiving cavity defined within it; The water inlet assembly (2) has a water inlet (11) at the lower end of the receiving cavity. The water inlet assembly (2) is disposed in the receiving cavity and is connected to the external water supply through the water inlet (11). An air inlet (3) is provided on the cavity with an air inlet (12). One end of the air inlet (3) is connected to the air inlet (12), and the other end is connected to the middle position of the water inlet assembly (2). The water outlet pipe (4) has an outlet (13) on the receiving cavity. One end of the water outlet pipe (4) is connected to the water inlet assembly (2) at the end away from the water inlet (11), and the other end is connected to the water outlet (13). The discharge pipe (5) has a discharge port (14) at the upper end of the receiving cavity. One end of the discharge pipe (5) is connected to the discharge port (14), and the other end is connected to the water inlet assembly (2). The discharge pipe (5) is located in the middle of the air inlet pipe (3) and the water outlet pipe (4).

2. The foam elimination device according to claim 1, characterized in that, The water inlet assembly (2) includes an inlet pipe (21), a connecting pipe (22), and a branch pipe (23). One end of the inlet pipe (21) is connected to an external water supply through the inlet port (11), and the other end is connected to the branch pipe (23) through the connecting pipe (22). The air inlet pipe (3) is connected to the connecting pipe (22) at the end away from the air inlet port (12). The branch pipe (23) is connected to the outlet pipe (4) at the end away from the connecting pipe (22). The discharge pipe (5) is connected to the branch pipe (23) at the end away from the discharge port (14).

3. The foam elimination device according to claim 2, characterized in that, The connecting pipe (22) includes an inlet section (221), a contraction section (222), a throat section (223), and a diffuser section (224). One end of the inlet section (221) is connected to the water inlet pipe (21) at the end away from the water inlet (11), and the other end is connected to the contraction section (222). The diameter of the contraction section (222) gradually decreases along the water inlet direction. The contraction section (222) is connected to the throat section (223) at the end away from the inlet section (221). The throat section (223) is connected to the diffuser section (224) at the end away from the contraction section (222). The diffuser section (224) is connected to the diversion pipe (23) at the end away from the throat section (223), and the diameter of the diffuser section (224) gradually increases along the water inlet direction.

4. A foam elimination device according to claim 2, characterized in that, There are two diversion pipes (23), and an outlet (13) is opened at each of the left and right ends of the receiving cavity. The input ends of the two diversion pipes (23) are connected to the end of the connecting pipe (22) away from the water inlet pipe (21), and the output ends of the two diversion pipes (23) are connected to the two outlets (13) respectively.

5. A foam elimination device according to claim 2, characterized in that, The water inlet assembly (2) also includes a water pump (24), which is connected to the water inlet (11).

6. A foam elimination device according to claim 1, characterized in that, The height of the inlet (11) is lower than the height of the outlet (13), and the height of the outlet (13) is lower than the height of the discharge outlet (14).

7. A foam elimination device according to claim 1, characterized in that, It also includes a connecting pipe (6) connected to the discharge port (14). There are multiple discharge pipes (5). The lower ends of the multiple discharge pipes (5) are connected to the water inlet assembly (2), and their upper ends are connected to the connecting pipes (6).

8. A foam elimination device according to claim 7, characterized in that, The discharge pipe (5) includes a thick pipe section (51) and a thin pipe section (52), wherein the diameter of the thick pipe section (51) is larger than the diameter of the thin pipe section (52). The lower end of the thick pipe section (51) is connected to the water inlet assembly (2), and its upper end is connected to the connecting pipe (6) through the thin pipe section (52).

9. A foam elimination device according to claim 1, characterized in that, It also includes an air pump, which is connected to the air inlet (12).

10. A foam elimination device according to any one of claims 1 to 9, characterized in that, It also includes a mounting base (7), through which the water inlet assembly (2) is installed in the receiving cavity.

Images