Industrial circulating water simulation device for testing scale and corrosion inhibition performance of biological agent

Abstract

The utility model relates to the technical field of circulating water quality detection devices, and particularly discloses an industrial circulating water simulation device for testing the scale and corrosion inhibition performance of a biological agent. The heating assembly can heat the circulating cooling water in the first water tank; a to-be-detected pipeline quick connector is sleeved in the water supply pipe; the spraying assembly is communicated with one end of the water supply pipe fitting and is used for spraying circulating cooling water into the first water tank; a water inlet of the delivery pump is communicated with the first water tank, and a water outlet of the delivery pump is communicated with one end, away from the spraying assembly, of the water supply pipe; the hanging piece assembly is provided with a plurality of metal pieces, and the metal pieces are located below the water outlet of the spraying assembly; and the biological membrane frame is filled with a bacteria-containing carrier, is immersed in the first water tank, and can simulate different production environments and test the scale and corrosion inhibition performance of the biological agent.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating water quality detection devices, in particular to an industrial circulating water simulation device for testing the scale and corrosion inhibition performance of a biological bacterial agent. Background Art

[0002] In most industrial processes, water is used as a heat transfer and cooling medium. Circulating cooling water is used in a wide range of applications, including metallurgy, oil refining, fertilizer production, and chemical engineering. Long-term circulation of circulating cooling water can lead to hazards such as scaling, corrosion, and algae growth within the system.

[0003] However, in different industrial production sites, the water quality problems arising in the circulating cooling water circulation system are different.

[0004] There is an urgent need for a circulating water simulation device that can simulate different production sites to test the effectiveness of various circulating water treatment agents in inhibiting corrosion, preventing scale, and avoiding biological slime, and ultimately obtain a high-quality water treatment solution. Utility Model Content

[0005] In view of the above problems, the utility model provides an industrial circulating water simulation device for testing the scale inhibition and corrosion inhibition performance of biological bacteria agents, the purpose of which is to simulate different production environments and test the scale inhibition and corrosion inhibition performance of biological bacteria agents.

[0006] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is as follows:

[0007] Provided is an industrial circulating water simulation device for testing the scale inhibition and corrosion inhibition performance of a biological microbial agent, comprising: a first water tank storing circulating cooling water; a water replenishment component capable of transporting the circulating cooling replenishment water in a second water tank into the first water tank, thereby ensuring a constant water level in the first water tank and selecting sewage or reclaimed water simulating different sources and water quality indicators as replenishment water; a heating component capable of heating the circulating cooling water in the first water tank; a water supply pipe fitting, wherein a quick connector for a pipe to be tested is sleeved inside the water supply pipe fitting; a spray assembly connected to one end of the water supply pipe fitting and used for spraying circulating cooling water into the first water tank; a delivery pump, wherein the water inlet of the delivery pump is connected to the first water tank, and the water outlet of the delivery pump is connected to the end of the water supply pipe fitting away from the spray assembly; a hanging plate assembly, wherein a plurality of metal sheets are provided on the hanging plate assembly, and the metal sheets are located below the water outlet of the spray assembly; and a biofilm rack filled with a bacteria-containing carrier and immersed in the first water tank.

[0008] Furthermore, the water replenishment component includes: a water outlet pipe, one end of which is connected to the second water pool and the other end extends toward the first water pool; a valve, which controls the opening and closing of the water outlet pipe; a water level detection component, which is arranged on the water outlet pipe, for detecting the height of the water level in the first water pool and transmitting an electrical signal to the valve to control the opening and closing of the valve.

[0009] Furthermore, the heating component includes: a mounting plate, which is arranged on the outer wall surface of the first water pool; a ceramic heating rod, which is clamped on the mounting plate, and the ceramic heating rod contacts the outer wall surface of the first water pool.

[0010] Furthermore, the spray assembly includes: a connecting pipe in an L shape, one end of which is connected to the water supply pipe; and an aeration plate, which is arranged at one end of the connecting pipe away from the water supply pipe.

[0011] Furthermore, the device also includes a backwash pipe, which is connected to the water supply pipe through a tee pipe.

[0012] Furthermore, the hanging piece assembly includes: a connecting column, which is detachably arranged on the spray assembly; a mounting plate, which is arranged at one end of the connecting column away from the spray assembly, and a plurality of metal sheets are arranged on the mounting plate along the circumferential direction.

[0013] Furthermore, the metal sheet includes: a stainless steel sheet, a carbon steel sheet and a copper sheet.

[0014] Furthermore, the biofilm frame is a rectangular parallelepiped frame, and a water hole is provided on each surface of the biofilm frame; a plurality of suspension balls are arranged in the biofilm frame, and bacteria-containing carriers are arranged on the suspension balls.

[0015] The beneficial effects of the utility model are as follows: in the utility model, on the one hand, the scaling, corrosion and biological slime conditions of the water surface and the pipeline can be observed with the naked eye and photographed, as well as the scale dissolution and scale inhibition conditions of the pipeline to be tested, so that the scale inhibition effect of the biological agent in the circulating cooling water is more intuitive; on the other hand, samples can be taken to detect changes in alkalinity, hardness, calcium ion concentration, conductivity, chloride ion concentration and the like before and after the addition of bacteria, and the concentration multiple can be calculated to determine whether a certain amount of scale inhibition and corrosion inhibition performance, COD and ammonia nitrogen and total nitrogen degradation capacity are met; samples can also be taken for microscopic examination, total colony count measurement, microbial classification and sequencing, etc. to determine the growth and metabolism strength of the biological agent in the circulating cooling water and the biofilm rack; by using the utility model, it can be fully simulated according to the working conditions of the production site, and multiple circulating cooling water effects such as scale inhibition, scale dissolution, corrosion inhibition, and biological slime can be tested at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of the simulation device provided in an embodiment of the present application.

[0017] Figure 2 This is a front view of the overall structure of the simulation device provided in an embodiment of the present application.

[0018] Figure 3 A schematic structural diagram of the hanging plate assembly provided in an embodiment of the present application.

[0019] Among them, 11, the first water tank; 12, the second water tank; 21, the outlet pipe; 22, the water level detection component; 3, the connecting pipe; 4, the backwash pipe fitting; 51, the connecting column; 52, the mounting plate; 53, the metal sheet; 6, the biofilm rack; 7, the water supply pipe fitting; 8, the delivery pump. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Reference Figure 1 and Figure 2 As shown, the embodiment of the present application discloses an industrial circulating water simulation device for testing the scale and corrosion inhibition performance of a biological microbial agent, comprising: a first water tank 11 and a second water tank 12, each storing circulating cooling water and circulating cooling make-up water; a water make-up component capable of transporting the circulating cooling make-up water in the second water tank 12 to the first water tank 11, thereby ensuring that the water level in the first water tank 11 is constant and selecting sewage or recycled water with simulated different sources and water quality indicators as make-up water; a heating component capable of heating the circulating cooling water in the first water tank 11; a water delivery ... Pipe fitting 7, a quick connector for the pipe to be tested is sleeved inside the water supply pipe fitting 7; a spray assembly, one end of which is connected to the water supply pipe fitting 7 and is used to spray circulating cooling water into the first water pool 11; a delivery pump 8, the water inlet of the delivery pump 8 is connected to the first water pool 11, and the water outlet of the delivery pump 8 is connected to the end of the water supply pipe fitting 7 away from the spray assembly; a hanging plate assembly, several metal sheets 53 are arranged on the hanging plate assembly, and the metal sheets 53 are located below the water outlet of the spray assembly; a biofilm rack 6, filled with a bacteria-containing carrier, immersed in the first water pool 11.

[0022] In the present invention, by starting the delivery pump 8, the circulating cooling water stored in the first water tank 11 can be sent back to the first water tank 11 through the water delivery pipe 7, simulating the production state of the circulating cooling water circulation and simulating the flow rate and scaling conditions of the production site.

[0023] In some embodiments, the circulating cooling water in the first water tank 11 can be circulating water directly retrieved on-site, or prepared water that simulates on-site water quality conditions such as conductivity, salinity, alkalinity, hardness, calcium and magnesium ions, and chloride ions, or prepared water that artificially increases these indicators to increase the difficulty of corrosion and scale inhibition.

[0024] In some embodiments, the first water tank 11 may be located directly below the spray assembly, with a wire or coil immersed in the first water tank 11 to compare scaling and corrosion changes before and after operation, thereby simulating whether the biological agent is effective in such an open circulating water system.

[0025] Among them, the material of the bacteria-containing carrier can be polyurethane, fiber balls, MBBR, etc.

[0026] It is worth mentioning that a quick connector for the pipeline to be tested is sleeved inside the water supply pipe fitting 7. The quick connector for the pipeline to be tested is obtained by intercepting the pipe fitting used to transport circulating cooling water at the customer's production site. The quick connector for the pipeline to be tested is placed in the water supply pipe fitting 7. It can be eroded by the circulating cooling water and stripped off by the metabolic products with scale inhibition and scaling dissolving properties in the biological bacterial agent, which can verify the scaling and scaling dissolving effects of the circulating cooling water on the quick connector for the pipeline to be tested in actual production.

[0027] Specifically, the water replenishment component includes: an outlet pipe 21, one end of which is connected to the second water pool 12, and the other end extends toward the first water pool 11; a valve, which controls the opening and closing of the outlet pipe 21; a water level detection component 22, which is arranged on the outlet pipe 21, for detecting the height of the water level in the first water pool 11 and transmitting an electrical signal to the valve to control the opening and closing of the valve.

[0028] It is worth mentioning that in this embodiment, the water level detection component 22 uses a pressure sensor and is hung on the water outlet pipe 21; when the circulating cooling water in the first water tank 11 submerges the pressure sensor, the valve is closed; when the circulating cooling water in the first water tank 11 evaporates and the water level drops below the pressure sensor, the valve is opened, and the circulating cooling replenishment water in the second water tank 12 flows into the first water tank 11 until the water level submerges the pressure sensor again, ensuring that the water level in the first water tank 11 is constant. It also simulates the water replenishment process in the on-site circulating cooling water system, based on which the relationship between evaporation amount, concentration ratio and corrosion and scale inhibition performance during operation can be calculated, and finally it can be judged whether the biological agent can achieve good corrosion and scale inhibition effects under the customer's current concentration ratio and water quality conditions.

[0029] On the one hand, the water level of the first water tank 11 can be automatically maintained to achieve a level that simulates the on-site process conditions; on the other hand, circulating cooling make-up water with worse water quality can be used to flow into the first water tank 11, and the degradation effect of microorganisms and the high dissolved oxygen environment in the water tank can be used to make the originally difficult-to-degrade sewage or reclaimed water reusable and treat the reclaimed water in the existing circulating cooling water system without the need for investment or the activation of a new biochemical pool. The water quality of the make-up water can also be improved to meet the circulating water make-up requirements, and ultimately the source of make-up water for the first water tank 11 can be opened up and costs can be reduced and efficiency increased.

[0030] In this embodiment, the heating assembly includes: a mounting plate 52 disposed on the outer wall of the first water pool 11 ; and a ceramic heating rod clamped on the mounting plate 52 and contacting the outer wall of the first water pool 11 .

[0031] Specifically, in this embodiment, the ceramic heating rod is a variable frequency heating rod with a power of 500W; when in use, it is powered by a power supply to heat the circulating cooling water in the first water pool 11, which can simulate the temperature of the circulating cooling water and the production scenario of heat exchange in actual production to prompt the system to reach a certain evaporation amount, and can also provide a suitable growth environment for the biological agent in the biofilm rack 6.

[0032] In this embodiment, the spray assembly includes: a connecting pipe 3 in an L shape, one end of which is connected to the water supply pipe 7; and an aeration plate, which is arranged at the end of the connecting pipe 3 away from the water supply pipe 7.

[0033] Specifically, one end of the connecting pipe 3 is set horizontally and the other end is set vertically, which can prevent the quick connector of the pipeline to be tested from being flushed out of the water supply pipe 7; in addition, by setting an aeration plate, the circulating cooling water output from the water supply pipe 7 can be dispersed and sent back to the first water pool 11, simulating the direct contact between the circulating cooling water and the air to achieve heat exchange and cooling.

[0034] Furthermore, the device also includes a backwash pipe 4, which is connected to a water supply pipe 7 through a tee pipe. Water can be supplied into the backwash pipe 4 to complete flushing of the pipeline and the delivery pump 8.

[0035] In this embodiment, a number of suspended balls are arranged in the biofilm frame 6, and the bacteria-containing carriers required for the simulated on-site process are loaded onto the suspended balls, and then loaded into the biofilm frame 6 and put into the first water pool 11; the biofilm frame 6 is a rectangular frame, and water holes are opened on each surface of the biofilm frame 6. It not only provides a place for microbial growth, but also serves as an interception means to prevent the overflow of the suspended balls, effectively avoiding blockage and system shutdown caused by the overflow of the carrier and rushing into the pump, pipe, and aeration plate.

[0036] Because the biofilm rack 6 is placed in the first water tank 11, it continuously releases small-molecule scale-inhibiting substances due to microbial growth and metabolism. Finally, based on the simulated operating conditions of the circulating cooling water system, its scale-inhibiting effect is fully exerted. By monitoring changes in various water quality data, it is determined whether the biofilm agent has a good corrosion and scale-inhibiting effect. Monitoring and analyzing microbial concentrations and population proportions can also determine whether the biofilm rack 6 and the bacterial carrier have achieved efficient microbial biofilm formation and retained the bacterial population, thereby reducing spillage into the free circulating cooling water and preventing the growth of biological slime.

[0037] Of course, the bacteria-containing carrier added to the biofilm rack 6 can be selected and formulated to achieve a better corrosion and scale inhibition effect. The equipment can be used to test the application effects of more formulas and different circulating cooling water conditions and pipe material combinations.

[0038] Reference Figure 3As shown, the hanging piece assembly includes: a connecting column 51, which is detachably arranged on the spray assembly; a mounting plate 52, which is arranged at one end of the connecting column 51 away from the spray assembly, and a plurality of metal sheets 53 are arranged on the mounting plate 52 along the circumferential direction.

[0039] Specifically, the metal sheet 53 includes: a stainless steel sheet, a carbon steel sheet, and a copper sheet.

[0040] In this embodiment, the metal sheet 53 is located below the aeration disk. The metal sheet 53 is provided to withstand the erosion of the circulating cooling water, thereby simulating the erosion of metals of different materials by the circulating cooling water.

[0041] One end of the connecting column 51 can be fixed to the connecting pipe 3 by means of a rope, a tie, a buckle, etc.

[0042] In the present invention, on the one hand, the scaling condition of the water surface and the pipeline can be observed with the naked eye and photographed, as well as the scaling condition of the pipeline to be tested; on the other hand, samples can be taken to detect changes in alkalinity, hardness, calcium ion concentration, conductivity, chloride ion concentration, etc. before and after the addition of bacteria, and the concentration multiple can be calculated to determine whether a certain amount of scale inhibition and corrosion inhibition performance, COD and ammonia nitrogen and total nitrogen degradation capacity are met. Samples can also be taken for microscopic examination, total colony count measurement, microbial classification and sequencing, etc. to determine the growth and metabolic strength of biological bacteria in circulating cooling water and biofilm racks; by using the present invention, it is possible to fully simulate the working conditions of the production site, and simultaneously test various circulating cooling water effects such as scale inhibition, scale dissolution, corrosion inhibition, and biological slime.

[0043] In this embodiment, the delivery pump 8 can be a magnetic water pump.

[0044] Those skilled in the art will appreciate that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the underlying inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such changes and modifications if they fall within the scope of the claims and equivalents of the present invention.

Claims

1. An industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents, characterized in that: include: The first water tank (11) and the second water tank (12) store circulating cooling water and circulating cooling make-up water respectively; A water replenishment component is capable of transporting circulating cooling replenishment water in the second water pool (12) to the first water pool (11), thereby ensuring a constant water level in the first water pool (11); A heating component capable of heating the circulating cooling water in the first water tank (11); A water supply pipe (7), wherein a quick-connect piece of the pipeline to be tested is sleeved inside the water supply pipe (7); A spray assembly connected to one end of the water supply pipe (7) for spraying circulating cooling water into the first water pool (11); A delivery pump (8), wherein the water inlet of the delivery pump (8) is connected to the first water pool (11), and the water outlet of the delivery pump (8) is connected to an end of the water delivery pipe (7) away from the spray assembly; A hanging sheet assembly, wherein a plurality of metal sheets (53) are provided on the hanging sheet assembly, and the metal sheets (53) are located below the water outlet of the spray assembly; The biofilm frame (6) is filled with bacteria-containing carriers and immersed in the first water pool (11).

2. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1 is characterized in that: The water replenishment kit includes: a water outlet pipe (21), one end of which is connected to the second water pool (12) and the other end of which extends toward the first water pool (11); A valve to control the opening and closing of the water outlet pipe (21); The water level detection component (22) is arranged on the water outlet pipe (21) and is used to detect the height of the water level in the first water tank (11) and transmit an electrical signal to the valve to control the opening and closing of the valve.

3. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1 is characterized in that: The heating assembly includes: A mounting plate (52) is provided on the outer wall surface of the first water pool (11); The ceramic heating rod is clamped on the mounting plate (52), and the ceramic heating rod contacts the outer wall surface of the first water pool (11).

4. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1, characterized in that: The spray assembly includes: The connecting pipe (3) is L-shaped, and one end of the connecting pipe (3) is connected to the water supply pipe (7); An aeration plate is provided at one end of the connecting pipe (3) away from the water supply pipe (7).

5. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1 is characterized in that: It also includes a backwash pipe (4) which is connected to the water supply pipe (7) via a tee pipe.

6. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1, characterized in that: The coupon assembly includes: A connecting column (51) is detachably mounted on the spray assembly; The mounting plate (52) is arranged at one end of the connecting column (51) away from the spray assembly, and a plurality of metal sheets (53) are arranged on the mounting plate (52) along the circumferential direction.

7. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1, characterized in that: The metal sheet (53) includes a stainless steel sheet, a carbon steel sheet and a copper sheet.

8. The industrial circulating water simulation device for testing the scale and corrosion inhibition performance of biological agents according to claim 1, characterized in that: The biofilm frame (6) is a rectangular parallelepiped frame, and a water hole is provided on each surface of the biofilm frame (6); a plurality of suspension balls are arranged in the biofilm frame (6), and bacteria-containing carriers are arranged on the suspension balls.

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