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

Abstract

The invention discloses a defoaming throttling device suitable for front-end treatment of water quality detection equipment, and relates to the technical field of water quality monitoring, the defoaming throttling device comprises a bottom shell, a sealing cavity is formed in the bottom shell, an upper cover is arranged above the bottom shell, a sealing assembly is arranged between the bottom shell and the upper cover, and the sealing assembly is connected with 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. The defoaming and throttling effects can be achieved at the same time, 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] The invention relates to the technical field of water quality monitoring, in particular to a defoaming and throttling device suitable for front-end processing of water quality detection equipment. Background Art

[0002] In online water quality testing equipment, the spectrum plays a huge role in checking water quality parameters. Impurities in water have a series of behaviors such as scattering, absorption, transmission, and reflection of light. The corresponding light intensity can be detected to conduct a qualitative or even quantitative analysis of the substance. In this analysis system, if there are bubbles, it will cause very serious errors in the analysis results. In existing online water quality testing equipment, in order to defoam and control the flow rate, physical defoaming systems and throttling systems are used respectively.

[0003] The current defoaming system has a defoaming structure integrated inside the equipment, which uses the natural tumbling and natural bubble discharge of the water flow to achieve the defoaming function. This defoaming system will lead to the disadvantages of heavy equipment structure, inconvenient cleaning, and poor defoaming effect. There are also independent defoaming systems. In order to improve the defoaming effect, the flow path is usually longer, the entire system is relatively large, and it is inconvenient for customers to install and maintain. The throttling system is basically controlled by a throttle valve. When using a throttle valve, the user needs to adjust the flow rate to a certain range by himself, which is inconvenient to use. If the throttle valve switch position is fixed, there are certain requirements for the flow rate of the front water sample under the use condition. In addition, the throttle valve has a service life and needs to be replaced regularly. This separate defoaming system and throttling system combined together may produce additional adverse effects. According to the developer's test, when there is air in the water sample pipeline, it will become dense small bubbles after passing through the narrow path of the throttle valve. The defoaming devices currently on the market cannot completely eliminate these dense small bubbles, which have a significant impact on the measurement results. Therefore, the above-mentioned defoaming and throttling scheme will not only cause a series of problems such as bulky equipment, complex structure, high equipment production cost and maintenance cost, but may even cause the defoaming function to fail. Summary of the invention

[0004] The purpose of the present invention is to provide a defoaming and throttling device suitable for front-end processing of water quality testing equipment to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A defoaming and throttling device suitable for front-end processing of water quality detection equipment comprises a bottom shell, a sealed cavity is provided inside the bottom shell, an upper cover is provided above the bottom shell, a sealing assembly is provided between the bottom shell and the upper cover, a lower boss matched with the sealed cavity is fixedly connected to the lower end of the upper cover, a top cavity is provided in the lower boss, a one-way flow control assembly is provided on the upper cover, a water path flow block is provided inside the sealed cavity, a plurality of evenly distributed upper through grooves are provided at the upper end of the water path flow block, a plurality of lower through grooves are provided at the lower end of the water path flow block, two ends of the lower through grooves are respectively connected with adjacent upper through grooves, the lower through grooves are arranged in an S shape, and ball rings are provided at both ends of the lower through grooves, a water inlet pipe joint is provided on one side of the bottom shell, the water inlet pipe joint is connected with the lower through groove on one side of the water path flow block, and a drainage assembly is also connected to the lower through groove on the other side of the water path flow block.

[0007] As a further solution of the present invention: the sealing assembly comprises a sealing ring groove, the sealing ring groove is arranged at the edge of the upper end surface of the bottom shell, and a sealing ring is arranged in the sealing ring groove.

[0008] As a further solution of the present invention: the one-way flow control component includes a top block, which is fixedly connected to a position on one side of the upper end surface of the upper cover, and an L-shaped internal channel connected to the top cavity is opened inside the top block, and a one-way valve is provided in the vertical section of the L-shaped internal channel.

[0009] As a further solution of the present invention: an overflow water pipe joint is connected to the port of the L-shaped inner channel, and the overflow water pipe joint is a standard pagoda joint.

[0010] As a further solution of the present invention: the drainage component includes a water outlet trough, which is arranged at a position on the side of the water flow block away from the water inlet pipe joint, and is connected to an adjacent lower through groove. A water outlet pipe joint is provided at a position of the bottom shell near the water outlet trough, and one end of the water outlet pipe joint located inside the bottom shell is connected to a right-angle elbow, and the lower end of the right-angle elbow is connected to the lower through groove at the lower end of the water outlet trough.

[0011] As a further solution of the present invention: a plurality of threaded holes are opened at the upper edge of the bottom shell, and a plurality of through holes are opened at the edge of the upper end surface of the upper cover. The positions of the through holes correspond to the threaded holes, and screws are passed through the through holes, and the screws are threadedly connected to the threaded holes.

[0012] As a further solution of the present invention: a mounting seat is fixedly connected to one side of the upper end surface of the upper cover, and a mounting hole is provided on the mounting seat.

[0013] As a further solution of the present invention: side grooves are formed at the upper ends of both sides of the bottom shell, and the upper ends of the side grooves extend to the upper end surface of the bottom shell.

[0014] As a further solution of the present invention: the opening pressure of the one-way valve is 0.05 MPa.

[0015] As a further solution of the present invention: the water inlet pipe joint and the water outlet pipe joint are both standard quick-connect joints.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can achieve the effects of defoaming and throttling at the same time, and can eliminate the water hammer effect in the front-end pipeline 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 inflow into the detection pool of the water quality detection instrument without obvious bubbles.

[0018] 2. The present invention has a simple structure, low production cost, and is easy to clean and maintain in the later stage. It only needs to remove the screws on the upper cover to take out the internal structural parts and accessories such as ball rings for cleaning. There are no small deep grooves or holes. It can be cleaned with cotton cloth or wiped with a soft brush, or ultrasonically cleaned, which greatly improves the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the water channel flow block in the present invention.

[0022] Figure 4 It is a schematic structural diagram of the bottom shell of the present invention.

[0023] Figure 5 It is a schematic diagram of the internal top view of the bottom shell of the present invention.

[0024] Figure 6 It is a schematic diagram of the top view of the water flow block in the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the water channel flow block in the present invention when viewed from above.

[0026] Figure 8 It is a schematic diagram of the top view structure in the present invention.

[0027] Fig. 9 For the present invention Figure 8 Schematic diagram of the cross-sectional structure of AA.

[0028] Fig.10 For the present invention Figure 8 Schematic diagram of the cross-sectional structure of BB.

[0029] Fig.11 For the present invention Figure 8 Schematic diagram of the cross-sectional structure of CC.

[0030] Fig.12 It is a schematic diagram of water circulation and exhaust in the present invention.

[0031] Fig.13 Schematic diagram of the waterway path in the present invention.

[0032] Among them: 1. bottom shell; 2. upper cover; 3. outlet pipe joint; 4. mounting seat; 5. top block; 6. overflow pipe joint; 7. inlet pipe joint; 8. sealing ring; 9. sealing cavity; 10. threaded hole; 11. sealing ring groove; 12. ball ring; 13. water flow block; 14. right-angle elbow; 15. through hole; 16. screw; 17. L-shaped inner channel; 18. one-way valve; 19. upper through groove; 20. lower through groove; 21. lower boss; 22. top cavity; 23. outlet groove; 24. side groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 13 In an embodiment of the present invention, a defoaming and throttling device suitable for front-end processing of water quality testing equipment includes a bottom shell 1, a sealing cavity 9 is opened inside the bottom shell 1, an upper cover 2 is arranged above the bottom shell 1, a sealing component is arranged between the bottom shell 1 and the upper cover 2, and the sealing component includes a sealing ring groove 11, the sealing ring groove 11 is opened at the edge of the upper end surface of the bottom shell 1, and a sealing ring 8 is arranged in the sealing ring groove 11; the position of the sealing ring 8 can be limited by the provided sealing ring groove 11 to ensure that the position of the sealing ring 8 will not be offset, and the provided sealing ring 8 can be squeezed after the upper cover 2 is installed, thereby realizing the sealing between the upper cover 2 and the bottom shell 1, and ensuring the sealing after installation.

[0035] The lower end of the upper cover 2 is fixedly connected with a lower boss 21 matched with the sealing cavity 9, and a top cavity 22 is opened in the lower boss 21. The upper cover 2 is provided with a one-way flow control component, and the one-way flow control component includes a top block 5, and the top block 5 is fixedly connected to a position on one side of the upper end surface of the upper cover 2. An L-shaped inner channel 17 connected to the top cavity 22 is opened inside the top block 5, and 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 0.05MPa; an overflow water pipe is connected to the port of the L-shaped inner channel 17 Connector 6, the overflow water pipe connector 6 is a standard pagoda connector; by utilizing the opening pressure of the one-way valve 18 to solve the water outlet problem in actual use, it is a very clever application. The one-way valve 18 not only provides a relatively closed environment for the entire defoaming and throttling system, ensuring that the outside air does not enter the system, but also during operation, if you want the water sample to flow out from the overflow port, it is necessary to ensure that the pressure in the system is higher than the outside atmospheric pressure by more than 0.05MPa, and this pressure is sufficient to meet the internal and external pressure difference of the outlet, ensuring that the water sample flows out of the outlet smoothly.

[0036] A water flow block 13 is provided inside the sealing cavity 9, and a plurality of evenly distributed upper grooves 19 are provided on the upper end of the water flow block 13, and a plurality of lower grooves 20 are provided on the lower end of the water flow block 13. The two ends of the lower grooves 20 are respectively connected with the adjacent upper grooves 19, and the lower grooves 20 are arranged in an S shape. Ball rings 12 are provided at both ends of the lower grooves 20. A water inlet pipe joint 7 is provided on one side of the bottom shell 1, and the water inlet pipe joint 7 is connected with the lower groove 20 on one side of the water flow block 13. The lower groove 20 on the other side of the water flow block 13 is also connected with a drainage component; the ball ring 12 is a highly efficient filler with a simple and ingenious structure and a low production cost. It plays a role in cutting and breaking bubbles, adsorbing bubbles and reducing pressure and blocking flow during the circulation of water samples, which not only realizes the defoaming function, but also realizes the throttling function.

[0037] The drainage component includes a water outlet trough 23, which is arranged at a position on the side of the water channel flow block 13 away from the water inlet pipe joint 7. The water outlet trough 23 is communicated with the adjacent lower through groove 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 with a right-angle elbow 14, and the lower end of the right-angle elbow 14 is communicated with the lower through groove 20 at the lower end of the water outlet trough 23; the water inlet pipe joint 7 and the water outlet pipe joint 3 are both standard quick-connect joints; the top block 5 is connected to the front end of the water outlet pipe joint 3 to provide full pipe assistance for water outlet, which greatly reduces the flow rate of the full 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 the water outlet not being full of pipes.

[0038] A plurality of threaded holes 10 are provided at the upper edge of the bottom shell 1, and a plurality of through holes 15 are provided at the upper edge of the upper cover 2. The positions of the through holes 15 correspond to the threaded holes 10. Screws 16 are passed through the through holes 15, and the screws 16 are threadedly connected to the threaded holes 10. The bottom shell 1 and the upper cover 2 are connected by screws 16, which is convenient for cleaning and maintenance of the internal components of the bottom shell 1 and the ball ring 12 at a later stage.

[0039] A mounting seat 4 is fixedly connected to one side of the upper end surface of the upper cover 2, and a mounting hole is provided on the mounting seat 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 surface of the bottom shell 1; the mounting seat 4 can facilitate the installation of the device, and the side slots 24 can facilitate the opening of the upper cover 2 when the upper cover 2 is removed.

[0040] The working principle of the present invention is: when in use, it is only necessary to connect the water sample pipeline to the water inlet pipe joint 7, and the water inlet pipe of the instrument to the water outlet pipe joint 3. When installing, the device is hung at a position slightly higher than the surface of the detection pool of the water quality detection instrument to generate a potential energy difference, thereby ensuring that the water sample in the defoaming and throttling device can smoothly flow into the detection pool of the instrument.

[0041] The present invention is divided into the following three working conditions during use:

[0042] Working condition 1: The water flow rate at the front end is small, the overflow port does not overflow, and the flow rate is <500ml / min.

[0043] The front water sample enters the defoaming and throttling device through the water inlet pipe joint 7. Since the sealed cavity space composed of the upper cover 2 and the water inlet pipe joint 7 is much larger than the water inlet pipe, the water flow pressure is released, achieving the effect of pressure reduction. If a water hammer effect occurs at the front end, it can also be eliminated when entering the sealed cavity. Fig.12 and Fig.13 The flow path of the blue arrow in the middle needs to continuously roll up and down in the water flow structure inside the water flow block 13, pass through the ball ring 12, and infiltrate, cut and collide with the ball ring 12. Some bubbles in the water sample are absorbed by the ball ring 12, and some bubbles break through the water flow. Fig.12 and Fig.13 The gas is discharged to the top of the sealed cavity in the direction of the upward arrow in the figure. When the gas pressure in the sealed cavity exceeds 0.05 MPa, the one-way valve 18 opens to exhaust the gas.

[0044] The water sample flows along the flow path on the internal water flow structure of the water flow block 13 to the water outlet, first entering from the bottom of the right-angle elbow 14, and then exiting after the pipe is full. Compared with the direct side water outlet, the right-angle elbow 14 is added, and the flow rate of the unfilled pipe is reduced from 200ml / min to 50ml / min, which is far below the lower limit of the flow rate of the instrument. Under this working condition, the flow rate of the water outlet is consistent with the flow rate of the water inlet, the inlet and outlet water are balanced, the defoaming effect is significant, the water flow in the instrument detection pool is stable and the measurement value is stable.

[0045] During the stabilization process of the equipment, the water flow in the front water inlet pipe is suddenly interrupted, and there will be a section of air between the water outlet and the water inlet of the instrument detection tank. The front water inlet pipe is refilled with water. Since the opening pressure of the one-way valve 18 is 0.05MPa, it can be ensured that the water pressure at the water outlet can break through the empty pipe section in the rear pipe and flow smoothly into the instrument detection tank. If there is no one-way valve 18, the pressure before and after the empty pipe section is balanced, and the water sample cannot break through the empty pipe section and flows directly from the overflow port.

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

[0047] The performance of the water sample in the defoaming and throttling device is basically consistent with the working conditions, and the defoaming effect is also very significant. The water flow in the instrument detection pool is still smooth and the measurement value is stable.

[0048] Under this condition, the flow rate at the outlet is smaller than that at the inlet, and the remaining flow flows out through the overflow pipe. The inner diameter of the overflow pipe is large, so the pipe is not full when overflowing. When the water flow at the inlet end is suddenly interrupted, no siphon effect will be formed.

[0049] Working condition three: The front-end water sample flow rate is large, exceeding 6667ml / min, and the outlet flow rate exceeds 750ml / min.

[0050] At this time, the water flow rate in the overflow pipe is relatively high, and the pipe can be full. If the water flow at the water inlet is suddenly interrupted, the water flow in the overflow pipe will gradually decrease until the pipe is not full, so there will be no siphon effect.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although this specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A defoaming and throttling device suitable for front-end treatment of water quality testing equipment, comprising a bottom shell (1), characterized in that: A sealed cavity (9) is provided inside the bottom shell (1), an upper cover (2) is provided above the bottom shell (1), a sealing component is provided between the bottom shell (1) and the upper cover (2), a lower boss (21) matching the sealed cavity (9) is fixedly connected to the lower end of the upper cover (2), a top cavity (22) is provided inside the lower boss (21), a one-way flow control component is provided on the upper cover (2), a water passage block (13) is provided inside the sealed cavity (9), and a plurality of evenly distributed upper through grooves (19) are provided on the upper end of the water passage block (13) A plurality of lower through grooves (20) are provided at the lower end of the water passage block (13), and 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, and ball rings (12) are provided at both ends of the lower through grooves (20). A water inlet pipe joint (7) is provided on one side of the bottom shell (1), and the water inlet pipe joint (7) is connected to the lower through groove (20) on one side of the water passage block (13). The lower through groove (20) on the other side of the water passage block (13) is also connected to a drainage component.

2. A defoaming and throttling device suitable for front-end processing of water quality testing equipment according to claim 1, characterized in that: The sealing assembly comprises a sealing ring groove (11), the sealing ring groove (11) is arranged at the edge of the upper end surface of the bottom shell (1), and a sealing ring (8) is arranged in the sealing ring groove (11).

3. A defoaming and throttling device suitable for front-end processing of water quality testing equipment according to claim 1, characterized in that: The one-way flow control assembly comprises a top block (5), the top block (5) being fixedly connected to a position on one side of the upper end surface of the upper cover (2), an L-shaped inner channel (17) communicating with the top cavity (22) being provided inside the top block (5), and a one-way valve (18) being provided in a vertical section of the L-shaped inner channel (17).

4. According to the defoaming and throttling device suitable for front-end processing of water quality detection equipment described in claim 3, an overflow water pipe joint (6) is connected to the port of the L-shaped inner channel (17), and the overflow water pipe joint (6) is a standard pagoda joint.

5. A defoaming and throttling device suitable for front-end processing of water quality testing equipment according to claim 1, characterized in that: The drainage assembly comprises a water outlet groove (23), the water outlet groove (23) is arranged at a position on a side of the water channel flow block (13) away from the water inlet pipe joint (7), the water outlet groove (23) is communicated with an adjacent lower through groove (20), the bottom shell (1) is provided with a water outlet pipe joint (3) at a position close to the water outlet groove (23), one end of the water outlet pipe joint (3) located inside the bottom shell (1) is connected to a right-angle elbow (14), and the lower end of the right-angle elbow (14) is communicated with the lower through groove (20) at the lower end of the water outlet groove (23).

6. A defoaming and throttling device suitable for front-end processing of water quality testing equipment according to claim 1, characterized in that: The bottom shell (1) is provided with a plurality of threaded holes (10) at the upper edge, and the upper cover (2) is provided with a plurality of through holes (15) at the 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 the screws (16) are threadedly connected to the threaded holes (10).

7. A defoaming and throttling device suitable for front-end processing of water quality testing equipment according to claim 1, characterized in that: A mounting seat (4) is fixedly connected to one side of the upper end surface of the upper cover (2), and mounting holes are provided on the mounting seat (4).

8. The defoaming and throttling device suitable for front-end processing of water quality testing equipment according to claim 1, characterized in that: Side slots (24) are provided at 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 surface of the bottom shell (1).

9. A defoaming and throttling device suitable for front-end processing 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 processing of water quality testing equipment according to claim 5, characterized in that: The water inlet pipe joint (7) and the water outlet pipe joint (3) are both standard quick-connect joints.

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