Defoaming throttling device suitable for front-end treatment of water quality detection equipment

Abstract

The utility model discloses a defoaming throttling device suitable for front-end treatment of water quality detection equipment, which relates to the technical field of water quality monitoring and comprises a bottom shell, a sealing cavity is arranged in the bottom shell, an upper cover is arranged above the bottom shell, a sealing component is arranged between the bottom shell and the upper cover, and the sealing component is arranged in the sealing cavity. The lower end of the upper cover is fixedly connected with a lower boss matched with the sealing cavity, a top cavity is formed in the lower boss, a one-way flow control assembly is arranged on the upper cover, and a waterway circulation block is arranged in the sealing cavity. According to the utility model, the defoaming and throttling effects can be simultaneously realized, the water hammer effect in the front-end pipeline can be eliminated, and the water flow pressure can be stabilized. In addition, the defoaming throttling device does not generate extra bubbles which are difficult to eliminate in the throttling process, stable water feeding of a detection pool of the water quality detection instrument can be achieved, and no obvious bubbles exist.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring technology, specifically a defoaming and throttling device suitable for the front-end treatment of water quality testing equipment. Background Technology

[0002] In online water quality testing equipment, spectroscopy plays a crucial role in examining water quality parameters. Impurities in water exhibit a series of behaviors related to light, including scattering, absorption, transmission, and reflection. By detecting the corresponding light intensity, qualitative and even quantitative analysis of the substances can be performed. In this analytical system, the presence of air bubbles can introduce significant errors into the analysis results. Existing online water quality testing equipment employs physical defoaming systems and flow throttling systems to eliminate foam and control flow rate, respectively.

[0003] Current defoaming systems include those that integrate defoaming structures within the equipment, utilizing the natural tumbling and defoaming of water flow. However, this type of system results in a heavy, difficult-to-clean structure and poor defoaming performance. There are also standalone defoaming systems, which, to improve defoaming effectiveness, typically have longer flow paths, making the entire system relatively large and inconvenient for installation and maintenance. Throttling systems are generally controlled by throttle valves. Using throttle valves requires users to adjust the flow rate to a certain range, which is inconvenient. If the throttle valve's on / off position is fixed, there are certain requirements for the pre-sample flow rate, and the throttle valve has a limited lifespan and needs periodic replacement. Combining these separate defoaming and throttle systems may produce additional adverse effects. According to developer tests, when air is present in the water sample pipeline, it turns into dense microbubbles after passing through the narrow diameter of the throttle valve. Currently available defoaming devices cannot completely eliminate these microbubbles, which significantly affect measurement results. Therefore, the above-mentioned defoaming and cost-saving solutions will not only cause a series of problems such as bulky equipment, complex structure, high equipment production and maintenance costs, but may even lead to the failure of the defoaming function. Utility Model Content

[0004] The purpose of this invention is to provide a defoaming and throttling device suitable for the front-end treatment of water quality testing equipment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A defoaming and throttling device suitable for front-end treatment of water quality testing equipment includes a bottom shell with a sealed cavity inside. A top cover is provided above the bottom shell, and a sealing assembly is provided between the bottom shell and the top cover. A lower boss matching the sealed cavity is fixedly connected to the lower end of the top cover, and a top cavity is provided within the lower boss. A one-way flow control assembly is provided on the top cover. A water flow block is provided inside the sealed cavity. Several evenly distributed upper channels are provided on the upper end of the water flow block, and several lower channels are provided on the lower end of the water flow block. The two ends of each lower channel are connected to adjacent upper channels, and the lower channels are arranged in an S-shape. Pall rings are provided at both ends of each lower channel. A water inlet pipe connector is provided on one side of the bottom shell, and the water inlet pipe connector is connected to a lower channel on one side of the water flow block. A drainage assembly is also connected to the lower channel on the other side of the water flow block.

[0007] As a further embodiment of this utility model: the sealing assembly includes a sealing ring groove, which is formed at the edge of the upper end face of the bottom shell, and a sealing ring is provided in the sealing ring groove.

[0008] As a further embodiment of this utility model: the one-way flow control component includes a top block, which is fixedly connected to one side of the upper end face of the top cover. The top block has an L-shaped inner channel communicating with the top cavity, and a one-way valve is provided in the vertical section of the L-shaped inner channel.

[0009] As a further improvement of this utility model: an overflow water pipe connector is connected to the port of the L-shaped inner channel, and the overflow water pipe connector is a standard pagoda connector.

[0010] As a further embodiment of this utility model: the drainage component includes a water outlet groove, which is located on the side of the water flow block away from the water inlet pipe joint. The water outlet groove is connected to an adjacent lower through groove. The bottom shell is provided with a water outlet pipe joint near the water outlet groove. One end of the water outlet pipe joint located inside the bottom shell is connected to a right-angle bend pipe. The lower end of the right-angle bend pipe is connected to the lower through groove at the lower end of the water outlet groove.

[0011] As a further embodiment of this utility model: a plurality of threaded holes are provided at the upper edge of the bottom shell, and a plurality of through holes are provided at the upper edge of the top cover. The positions of the through holes correspond to the threaded holes, and screws are inserted into the through holes and are threadedly connected to the threaded holes.

[0012] As a further improvement of this utility model: a mounting base is fixedly connected to one side of the upper end face of the upper cover, and the mounting base is provided with mounting holes.

[0013] As a further improvement of this utility model: the upper ends of both sides of the bottom shell are provided with side slots, and the upper ends of the side slots extend to the upper end surface of the bottom shell.

[0014] As a further improvement of this utility model, the opening pressure of the one-way valve is 0.05 MPa.

[0015] As a further improvement of this utility model, both the inlet pipe connector and the outlet pipe connector are standard quick-connect connectors.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model can simultaneously achieve the effects of defoaming and throttling, and can eliminate the water hammer effect in the front-end pipe and stabilize the water flow pressure. In addition, the defoaming and throttling device described above will not generate additional bubbles that are difficult to eliminate during the throttling process, and can achieve stable water intake into the detection pool of the water quality testing instrument without obvious bubbles.

[0018] 2. This utility model has a simple structure, low production cost, and is easy to clean and maintain. Simply remove the screws on the top cover to take out the internal structural parts and accessories such as Pall rings for cleaning. There are no small deep grooves or holes, so it can be cleaned with a cotton cloth or a soft brush, or it can be ultrasonically cleaned, which greatly improves the convenience of maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the water flow block in this utility model.

[0022] Figure 4 This is a schematic diagram of the bottom shell structure of this utility model.

[0023] Figure 5 This is a top view of the internal structure of the bottom shell in this utility model.

[0024] Figure 6 This is a top view of the water flow block in this utility model.

[0025] Figure 7 This is a bottom view of the water flow block in this utility model.

[0026] Figure 8 This is a top view of the structure of this utility model.

[0027] Figure 9 In this utility model Figure 8 A schematic diagram of the cross-sectional structure of AA.

[0028] Figure 10 In this utility model Figure 8A schematic diagram of the cross-sectional structure of BB.

[0029] Figure 11 In this utility model Figure 8 A schematic diagram of the cross-sectional structure of CC.

[0030] Figure 12 This is a schematic diagram of the water flow and exhaust system in this utility model.

[0031] Figure 13 This is a schematic diagram of the waterway path in this utility model.

[0032] The components include: 1. Bottom shell; 2. Top cover; 3. Outlet pipe connector; 4. Mounting base; 5. Top block; 6. Overflow pipe connector; 7. Inlet pipe connector; 8. Sealing ring; 9. Sealing cavity; 10. Threaded hole; 11. Sealing ring groove; 12. Pall ring; 13. Water flow block; 14. Right angle bend; 15. Through hole; 16. Screw; 17. L-shaped inner channel; 18. Check valve; 19. Upper through groove; 20. Lower through groove; 21. Lower boss; 22. Top cavity; 23. Outlet groove; 24. Side opening groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-13 In this embodiment of the present invention, a defoaming and throttling device suitable for the front-end treatment of water quality testing equipment includes a bottom shell 1, a sealing cavity 9 inside the bottom shell 1, an upper cover 2 above the bottom shell 1, and a sealing assembly between the bottom shell 1 and the upper cover 2. The sealing assembly includes a sealing ring groove 11, which is located at the edge of the upper end face of the bottom shell 1. A sealing ring 8 is provided in the sealing ring groove 11. The sealing ring groove 11 can limit the position of the sealing ring 8, ensuring that the position of the sealing ring 8 will not shift. At the same time, the sealing ring 8 can be squeezed after the upper cover 2 is installed, thereby achieving a seal between the upper cover 2 and the bottom shell 1 and ensuring the sealing performance after installation.

[0035] The lower end of the upper cover 2 is fixedly connected to a lower protrusion 21 that matches the sealing cavity 9. A top cavity 22 is formed inside the lower protrusion 21. The upper cover 2 is provided with a one-way flow control assembly, which includes a top block 5. The top block 5 is fixedly connected to one side of the upper end face of the upper cover 2. An L-shaped inner channel 17 communicating with the top cavity 22 is formed inside the top block 5. A one-way valve 18 is provided in the vertical section of the L-shaped inner channel 17. The opening pressure of the one-way valve 18 is 0.05 MPa. An overflow pipe is connected to the port of the L-shaped inner channel 17. Connector 6, the overflow pipe connector 6 is a standard pagoda connector; using the opening pressure of the one-way valve 18 to solve the water outlet problem in actual use is a very ingenious application. The one-way valve 18 not only provides a relatively closed environment for the entire defoaming and throttling system, ensuring that outside air does not enter the system, but also, in order for the water sample to flow out from the overflow port during operation, the pressure inside the system needs to be more than 0.05 MPa higher than the outside atmospheric pressure. This pressure is sufficient to meet the pressure difference problem inside and outside the outlet, ensuring that the water sample flows out smoothly from the outlet.

[0036] The sealed cavity 9 is equipped with a water flow block 13. The upper end of the water flow block 13 has several evenly distributed upper through grooves 19, and the lower end of the water flow block 13 has several lower through grooves 20. The two ends of the lower through grooves 20 are respectively connected to the adjacent upper through grooves 19. The lower through grooves 20 are arranged in an S-shape. Both ends of the lower through grooves 20 are provided with Pall rings 12. The bottom shell 1 is provided with a water inlet pipe connector 7 on one side. The water inlet pipe connector 7 is connected to the lower through groove 20 on one side of the water flow block 13. The lower through groove 20 on the other side of the water flow block 13 is also connected to a drainage component. The Pall ring 12 is a high-efficiency packing material with a simple and ingenious structure and low production cost. In the process of water sample flow, it plays a role in cutting and breaking bubbles, adsorbing bubbles, and reducing pressure and obstructing flow. It not only realizes the defoaming function, but also the flow-throttling function.

[0037] The drainage assembly includes a water outlet trough 23, which is located on the side of the water flow block 13 away from the water inlet pipe connector 7. The water outlet trough 23 is connected to the adjacent lower through-slot 20. The bottom shell 1 is provided with a water outlet pipe connector 3 near the water outlet trough 23. One end of the water outlet pipe connector 3 located inside the bottom shell 1 is connected to a right-angle bend 14. The lower end of the right-angle bend 14 is connected to the lower through-slot 20 at the lower end of the water outlet trough 23. Both the water inlet pipe connector 7 and the water outlet pipe connector 3 are standard quick-connect connectors. The top block 5 is connected to the front end of the water outlet pipe connector 3 to provide full pipe assistance for water outlet, which greatly reduces the flow velocity of the incomplete pipe. The use of the top block 5 greatly simplifies the structural design, reduces the processing difficulty, saves processing costs, and most importantly, it successfully solves the problem of incomplete pipe outlet.

[0038] The bottom shell 1 has several threaded holes 10 at its upper edge, and the top cover 2 has several through holes 15 at its upper edge. The positions of the through holes 15 correspond to the threaded holes 10. Screws 16 are inserted into the through holes 15 and are threadedly connected to the threaded holes 10. The bottom shell 1 and the top cover 2 are connected by screws 16, which facilitates the cleaning and maintenance of the internal components of the bottom shell 1 and the Pall ring 12 in the future.

[0039] A mounting base 4 is fixedly connected to one side of the upper end face of the top cover 2, and mounting holes are provided on the mounting base 4. Side slots 24 are provided on the upper ends of both sides of the bottom shell 1, and the upper ends of the side slots 24 extend to the upper end face of the bottom shell 1. The mounting base 4 can facilitate the installation of this device, and the side slots 24 can facilitate the opening of the top cover 2 when it is disassembled.

[0040] The working principle of this utility model is as follows: When in use, simply connect the water sample pipe to the inlet pipe connector 7 and the instrument's inlet pipe to the outlet pipe connector 3. During installation, hang the device at a position slightly higher than the surface of the water quality testing instrument's testing pool to generate a potential energy difference, ensuring that the water sample in the defoaming and throttling device can flow smoothly into the instrument's testing pool.

[0041] This utility model is used under the following three conditions;

[0042] Operating Condition 1: The flow rate of the water sample at the front end is relatively small, the overflow outlet does not overflow, and the flow rate is <500ml / min.

[0043] The water sample enters the defoaming and throttling device through the inlet pipe connector 7. Since the sealed cavity formed by the upper cover 2 and the inlet pipe connector 7 is much larger than the inlet pipe, the water pressure is released, achieving a pressure reduction effect. If water hammer occurs at the front end, it can also be eliminated upon entering the sealed cavity. The water sample is processed according to… Figure 12 and Figure 13 The flow path indicated by the blue arrow needs to continuously tumble up and down within the water flow structure of the water flow block 13, passing through the Pall rings 12, where it is wetted, cut, and impacted. Some air bubbles in the water sample are adsorbed by the Pall rings 12, while others break through the water flow, according to... Figure 12 and Figure 13 The air is discharged in the direction of the upward arrow to the top of the sealed cavity. When the air pressure in the sealed cavity exceeds 0.05MPa, the one-way valve 18 opens to release the air.

[0044] The water sample flows along the flow path inside the water flow block 13 to the outlet. Water first enters from the bottom of the right-angle bend 14, and then exits after the pipe is full. Compared to direct side outlet, the addition of the right-angle bend 14 reduces the flow velocity from 200 ml / min to 50 ml / min when the pipe is not full, far below the instrument's lower flow limit. Under this condition, the outlet flow rate is consistent with the inlet flow rate, maintaining a balance between inlet and outlet water, resulting in significant defoaming. The water flow in the instrument's detection tank is smooth and undisturbed, leading to stable measurement values.

[0045] During equipment stabilization, if the water flow in the front-end inlet pipe is suddenly interrupted, an air gap will exist between the outlet and the inlet of the instrument detection tank. When water is reintroduced into the front-end inlet pipe, the opening pressure of the one-way valve 18 (0.05 MPa) ensures that the water pressure at the outlet can overcome the empty pipe section in the rear-end pipe, allowing the water sample to flow smoothly into the instrument detection tank. Without the one-way valve 18, the pressure before and after the empty pipe section is balanced, preventing the water sample from overcoming the empty pipe section and causing it to flow directly out of the overflow outlet.

[0046] Operating Condition 2: The front-end water sample flow rate is normal, with overflow at the overflow outlet. The flow rate is in the range of 500-6667 ml / min, and the outlet flow rate is limited to 750 ml / min.

[0047] The water sample performed basically the same as under the operating conditions in the defoaming and throttling device, and the defoaming effect was also very significant. The water flow in the instrument detection tank remained stable and without ripples, and the measured values ​​were stable.

[0048] Under this operating condition, the outlet flow rate is smaller than the inlet flow rate, and the remaining flow rate flows out through the overflow pipe. The overflow pipe has a larger inner diameter, so it does not fill the pipe completely during overflow. When the water flow at the inlet end is suddenly interrupted, a siphon effect will not occur.

[0049] Operating Condition 3: The front-end water sample flow rate is relatively large, exceeding 6667 ml / min, and the outlet flow rate exceeds 750 ml / min.

[0050] At this point, the water flow velocity in the overflow pipe is relatively high, reaching a full pipe state. If the water flow at the inlet is suddenly interrupted, the water flow in the overflow pipe gradually decreases until the pipe is not full, so there will be no siphon effect.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A defoaming and throttling device suitable for the front-end treatment of water quality testing equipment, comprising a bottom shell (1), characterized in that; The bottom shell (1) has a sealed cavity (9) inside. The bottom shell (1) has an upper cover (2) on top. A sealing assembly is provided between the bottom shell (1) and the upper cover (2). The lower end of the upper cover (2) is fixedly connected to a lower boss (21) that matches the sealed cavity (9). The lower boss (21) has a top cavity (22) inside. The upper cover (2) has a one-way flow control assembly. The sealed cavity (9) has a water flow block (13) inside. The upper end of the water flow block (13) has several evenly distributed upper through grooves (19). The lower end of the water passage block (13) is provided with several lower passage grooves (20). The two ends of the lower passage grooves (20) are respectively connected to the adjacent upper passage grooves (19). The lower passage grooves (20) are arranged in an S-shape. Both ends of the lower passage grooves (20) are provided with Pall rings (12). The bottom shell (1) is provided with a water inlet pipe connector (7) on one side. The water inlet pipe connector (7) is connected to the lower passage groove (20) on one side of the water passage block (13). A drainage component is also connected to the lower passage groove (20) on the other side of the water passage block (13).

2. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 1, characterized in that, The sealing assembly includes a sealing ring groove (11), which is located at the edge of the upper end face of the bottom shell (1), and a sealing ring (8) is provided in the sealing ring groove (11).

3. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 1, characterized in that, The one-way flow control assembly includes a top block (5), which is fixedly connected to one side of the upper end face of the top cover (2). The top block (5) has an L-shaped inner channel (17) that communicates with the top cavity (22). The vertical section of the L-shaped inner channel (17) is provided with a one-way valve (18).

4. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 3, characterized in that, An overflow pipe connector (6) is connected to the port of the L-shaped inner channel (17), and the overflow pipe connector (6) is a standard pagoda connector.

5. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 1, characterized in that, The drainage assembly includes a water outlet trough (23), which is located on the side of the water flow block (13) away from the water inlet pipe joint (7). The water outlet trough (23) is connected to the adjacent lower channel (20). The bottom shell (1) is provided with a water outlet pipe joint (3) near the water outlet trough (23). One end of the water outlet pipe joint (3) located inside the bottom shell (1) is connected to a right angle bend (14). The lower end of the right angle bend (14) is connected to the lower channel (20) at the lower end of the water outlet trough (23).

6. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 1, characterized in that, The bottom shell (1) has several threaded holes (10) at its upper edge, and the top cover (2) has several through holes (15) at its upper edge. The through holes (15) are located opposite to the threaded holes (10), and screws (16) are inserted into the through holes (15). The screws (16) are threadedly connected to the threaded holes (10).

7. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 1, characterized in that, The upper cover (2) is fixedly connected to one side of the upper end face of the cover (2), and the mounting base (4) is provided with mounting holes.

8. The defoaming and throttling device for front-end treatment of water quality testing equipment according to claim 1, characterized in that, The upper ends of both sides of the bottom shell (1) are provided with side slots (24), and the upper ends of the side slots (24) extend to the upper end surface of the bottom shell (1).

9. A defoaming and throttling device suitable for front-end treatment of water quality testing equipment according to claim 3, characterized in that, The opening pressure of the one-way valve (18) is 0.05 MPa.

10. A defoaming and throttling device suitable for front-end treatment of water quality testing equipment according to claim 5, characterized in that, Both the inlet pipe connector (7) and the outlet pipe connector (3) are standard quick-connect connectors.

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