A kind of sampling and testing equipment for zero discharge of sewage

Abstract

The present invention belongs to the technical field of sewage detection, in particular to a sampling detection device for zero-discharge sewage, the present invention comprises: a sampling tank, a water inlet pipe is connected to the sampling tank, one end of the water inlet pipe is fixedly connected to a valve body, the valve body is connected to a sewage pipe; a drainage pipe is fixedly connected to the bottom of the sampling tank, the drainage pipe is connected to a valve; a liftable valve core is connected to the valve body for controlling the switch of the valve body, a valve stem is fixedly connected to the valve core, the valve stem passes through the water inlet pipe and one end of the valve stem extends to the inside of the sampling tank; a lifting seat is provided inside the sampling tank for driving the valve stem to lift and lower, when the lifting seat descends, the valve core is driven to descend through the valve stem to open the valve body; a ring-shaped liftable cleaning plate is connected to the inner wall of the sampling tank for cleaning the sampling tank; the turbine blade group is driven to rotate by sewage, and the scraper is driven to move up and down to clean the inner wall of the sampling tank, thereby solving the problem of sample contamination by dirt attached to the inner wall of the sampling tube.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a sampling detection equipment for zero-discharge of sewage. Background Art

[0002] Water quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants and their changing trends, and evaluating water quality conditions. However, sewage discharge detection equipment is often used in the process of detecting sewage discharge. Existing sewage discharge detection equipment is generally only installed at the sewage source, and it is impossible to re-sample the sewage being discharged, which not only leads to uneven sewage detection, but also easily leads to the direct discharge of unqualified sewage, causing certain safety hazards.

[0003] Before the sewage is discharged for testing, it is mainly introduced into the sampling and testing equipment through a catheter. After long-term use, the testing equipment is adhered to the inner wall by the dirt and impurities in the sewage, which pollutes the sewage sampled in the next period of time and affects the testing results of the sewage. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sewage zero-discharge sampling and detection device, which overcomes the problem of sample contamination caused by dirt adhering to the inner wall of the prior sewage sampling device after long-term use.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: a zero-discharge sewage sampling and detection device proposed by the present invention comprises: a sampling tank, a water inlet pipe is connected to the sampling tank, one end of the water inlet pipe is fixedly connected to a valve body, and the valve body is connected to a sewage pipe; a drain pipe is fixedly connected to the bottom of the sampling tank, and a valve is connected to the drain pipe; a liftable valve core is connected to the valve body for controlling the switch of the valve body, a valve stem is fixedly connected to the valve core, the valve stem passes through the water inlet pipe and one end of the valve stem extends to the inside of the sampling tank; a lifting seat is provided inside the sampling tank for driving the valve stem to rise and fall, a first lifting rod is fixedly connected to the lifting seat, the upper end of the first lifting rod extends to the outside of the sampling tank and is fixedly connected to a pressure frame, when the pressure frame descends, the lifting seat is driven to descend, and when the lifting seat descends, the valve core is driven to descend through the valve stem to open the valve body; a ring-shaped liftable cleaning plate is connected to the inner wall of the sampling tank for cleaning the sampling tank.

[0006] As a preferred technical solution of the present invention, the lifting seat is disc-shaped and contacts the inner wall of the sampling tank. A vortex hole is provided at the center of the lifting seat. A turbine blade group is rotatably connected in the vortex hole, and a rotating cylinder is coaxially connected to the turbine blade group to drive the cleaning plate to reciprocate up and down.

[0007] As a preferred technical solution of the present invention, a second lifting rod is fixedly connected to the cleaning plate, and the second lifting rod is movably connected to the lifting seat; a pair of spiral grooves with opposite spiral directions are provided on the surface of the rotating cylinder, and a slider slidably connected to the spiral groove is rotatably connected to the second lifting rod. When the rotating cylinder rotates, the slider is driven to lift and lower back and forth, thereby driving the cleaning plate to reciprocate up and down.

[0008] As a preferred technical solution of the present invention, the bottom of the sampling tank is rotatably connected to multiple cylinders, which are evenly distributed along the circumference of the bottom of the sampling tank; a scraper is coaxially fixedly connected to the cylinder for cleaning the bottom of the sampling tank, and the scraper is driven to rotate when the cylinder rotates.

[0009] As a preferred technical solution of the present invention, the cleaning plate is fixedly connected with a support rod corresponding to the cylinder one by one, the end of the support rod is provided with a sliding part, and the surface of the cylinder is provided with a spiral guide groove slidably connected to the sliding part. When the cleaning plate reciprocates up and down, it drives the cylinder to reciprocate.

[0010] As a preferred technical solution of the present invention, a diverter plate is fixedly connected below the lifting seat, a pressure rod is fixedly connected below the diverter plate, one end of the valve stem is fixedly connected to a retaining frame movably connected to the pressure rod, and a first spring is connected to the surface of the pressure rod.

[0011] As a preferred technical solution of the present invention, the valve body is in a cylindrical structure, a circular ring body is fixedly connected to the inner wall of the upper end of the valve body, the valve core is sealingly and movably connected to the circular ring body, and a cylindrical filter screen is fixedly connected below the circular ring body.

[0012] As a preferred technical solution of the present invention, a telescopic rod is fixedly connected between the pressure frame and the top of the sampling tank, and a second spring is connected between the pressure frame and the sampling tank.

[0013] As a preferred technical solution of the present invention, a pair of sampling holes arranged up and down are provided on the surface of the sampling tank, and a valve plate with a liftable and hollow structure is sealedly connected to the surface of the sampling tank, and through holes corresponding to the sampling holes are provided on the valve plate, and a water outlet is fixedly connected to the valve plate.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention connects a lifting seat in the sampling tank. When the lifting seat descends half of its stroke, it can drive the valve stem to descend, and then drive the valve core to descend, open the valve body, and allow sewage to enter the sampling tank from the water inlet pipe, thereby achieving the purpose of sewage sampling.

[0016] 2. When the lifting seat of the present invention is fully lowered, sewage flows into the vortex hole, driving the turbine blades to rotate, driving the spiral barrel to rotate, and then driving the cleaning plate to move up and down to clean the inner wall of the sampling tank. At the same time, the cleaning plate can drive the scraper to rotate when moving up and down to clean the bottom of the sampling tank, solving the problem of dirt adhering to the inner wall of the sampling tank after long-term use, affecting the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a sewage zero-discharge sampling and detection device proposed by the present invention.

[0018] Figure 2 This is a schematic diagram of the sampling and testing equipment proposed in the present invention being connected to a sewage pipe.

[0019] Figure 3 The present invention provides a schematic cross-sectional view of a zero-discharge sewage sampling and detection device.

[0020] Figure 4 Schematic diagram of the lifting seat and cleaning plate proposed by the present invention.

[0021] Figure 5 This is a schematic structural diagram of the valve body proposed in the present invention.

[0022] Figure 6 This is a schematic structural diagram of the scraper proposed in the present invention.

[0023] Figure 7 This is a schematic structural diagram of the valve plate proposed in the present invention.

[0024] In the figure: 1. sampling tank; 101. sampling hole; 2. lifting seat; 21. diverter plate; 22. vortex hole; 23. turbine blade group; 24. rotating cylinder; 25. spiral groove; 26. second lifting rod; 27. slider; 28. first lifting rod; 29. ​​second spring; 210. pressure frame; 211. pressure rod; 212. first spring; 3. cleaning plate; 31. support rod; 32. sliding part; 4. scraper; 41. cylinder; 42. guide groove; 5. valve body; 51. annular body; 52. valve core; 53. filter screen; 54. valve stem; 55. retaining frame; 6. water inlet pipe; 7. drain pipe; 71. valve; 8. valve plate; 81. water outlet; 82. through hole; 9. telescopic rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Embodiment: This embodiment discloses a wastewater zero discharge sampling detection device, such as Figure 1-Figure 7As shown, it includes: a sampling tank 1, a water inlet pipe 6 is connected to the sampling tank 1, one end of the water inlet pipe 6 is fixedly connected to a valve body 5, the valve body 5 is connected to a sewage pipe, and sewage enters the sampling tank 1 through the water inlet pipe 6; a drainage pipe 7 is fixedly connected to the bottom of the sampling tank 1, and a valve 71 is connected to the drainage pipe 7; a liftable valve core 52 is connected inside the valve body 5 to control the switch of the valve body 5, and the valve body 5 will be opened when the valve core 52 descends, and a valve stem 54 is fixedly connected to the valve core 52, and the valve stem 54 passes through the water inlet pipe 6 and one end of the valve stem extends to the inside of the sampling tank 1; a lifting seat 2 is provided inside the sampling tank 1, which is used to control the switch of the valve body 5. In order to drive the valve stem 54 to rise and fall, a first lifting rod 28 is fixedly connected to the lifting seat 2, and the upper end of the first lifting rod 28 extends to the outside of the sampling tank 1 and is fixedly connected to a pressing frame 210. When in use, the pressing frame 210 is manually pressed down to descend, and the pressing frame 210 drives the lifting seat 2 to descend, and the lifting seat 2 drives the valve stem 54 to descend, and the valve stem 54 drives the valve core 52 to descend, and the valve body 5 is opened. The sewage enters the sampling tank 1 through the valve body 5 and the water inlet pipe 6, and the sewage is sampled. The sampled sewage can be left to stand in the sampling tank 1 for a period of time, and then the sewage sample is taken into a test tube for testing.

[0027] Preferably, Figure 5 As shown, the valve body 5 is of a cylindrical structure, and a circular ring body 51 is fixedly connected to the inner wall of the upper end of the valve body 5, and the valve core 52 is sealingly and movably connected to the circular ring body 51, and a cylindrical filter screen 53 is fixedly connected below the circular ring body 51. The inner diameter of the filter screen 53 is the same as the inner diameter of the circular ring body 51, and a gap is left between the filter screen 53 and the inner wall of the valve body 5. The filter screen filters the dirt and garbage in the sewage to avoid blocking the water inlet pipe 6. When the valve core 52 drops to the bottom position of the filter screen 53, the sewage enters the water inlet pipe 6 after being filtered through the filter screen 53, and the dirt and garbage remain in the filter screen 53. After the valve core 52 rises, the dirty garbage is pushed out of the filter screen, and the dirty garbage enters the sewage pipe again and is washed away by the water flow.

[0028] Preferably, a telescopic rod 9 is fixedly connected between the pressure frame 210 and the top of the sampling tank 1, and a second spring 29 is connected between the pressure frame 210 and the sampling tank 1. The second spring 29 is connected to the surface of the first lifting rod 28, and the second spring 29 serves to reset the lifting seat 2.

[0029] like Figure 3-Figure 4As shown, the inner wall of the sampling tank 1 is connected with a ring-shaped lifting cleaning plate 3 for cleaning the sampling tank 1. The lifting seat 2 is disc-shaped and contacts the inner wall of the sampling tank 1. A vortex hole 22 is provided at the center of the lifting seat 2. A turbine blade group 23 is rotatably connected in the vortex hole 22, and a rotating cylinder 24 is coaxially connected to the turbine blade group 23 for driving the cleaning plate 3 to reciprocate up and down; a second lifting rod 26 is fixedly connected to the cleaning plate 3, and the second lifting rod 26 is movably connected to the lifting seat 2; a pair of spiral grooves 25 with opposite spiral directions are provided on the surface of the rotating cylinder 24, and a slider 27 slidably connected to the spiral groove 25 is rotatably connected to the second lifting rod 26, and the two ends of the two spiral grooves 25 are connected, and the slider 27 can slide from one of the spiral grooves 25 to the other spiral groove 25. Thereby, when the rotating cylinder 24 rotates, it can drive the slider 27 to rise and fall, and then drive the cleaning plate 3 to reciprocate up and down; after the lifting seat 2 descends half of the stroke, the valve body 5 is opened, and when the sampling tank 1 samples water, the height of the lifting seat 2 is higher than the height of the water inlet pipe 6, so as to avoid the lifting seat 2 blocking the water outlet of the water inlet pipe 6; when the lifting seat 2 is completely descended, the height of the lifting seat 2 is lower than the water inlet pipe 6, and the water inlet pipe 6 flows the sewage to the upper surface of the lifting seat 2, and the sewage drives the turbine blade group 23 to rotate after passing through the vortex hole 22, and then drives the rotating cylinder 24 to rotate. When the rotating cylinder 24 rotates, it drives the second lifting rod 26 to reciprocate up and down, and drives the cleaning plate 3 to reciprocate up and down, so as to clean the inner wall of the sampling tank 1, so as to avoid the influence of the dirt on the inner wall of the sampling tank 1 on the sewage sample.

[0030] Preferably, a diverter plate 21 is fixedly connected below the lifting seat 2, and the diameter of the diverter plate 21 is smaller than the diameter of the lifting seat 2. After the sewage flows down from the vortex hole 22, it flows down evenly from the periphery of the diverter plate 21, which is convenient for flushing the dirt scraped off the cleaning plate 3; wherein, a pressure rod 211 is fixedly connected below the diverter plate 21, one end of the valve stem 54 is fixedly connected to a retaining frame 55 movably connected to the pressure rod 211, and a first spring 212 is connected to the surface of the pressure rod 211, and the first spring 212 is arranged between the diverter plate 21 and the retaining frame 55; when the lifting seat 2 is fully lowered, the first spring 212 is in a compressed state.

[0031] Among them, Figure 3 and Figure 6 As shown, a plurality of cylinders 41 are rotatably connected to the bottom of the sampling tank 1, and the cylinders 41 are evenly distributed along the circumference of the bottom of the sampling tank 1; a scraper 4 is coaxially fixedly connected to the cylinder 41 for cleaning the bottom of the sampling tank 1, and the scraper 4 contacts the bottom of the sampling tank 1, and the rotation of the cylinder 41 drives the scraper 4 to rotate; a support rod 31 corresponding to the cylinder 41 is fixedly connected to the cleaning plate 3, and a sliding portion 32 is provided at the end of the support rod 31, and a spiral guide groove 42 slidably connected to the sliding portion 32 is provided on the surface of the cylinder 41, when the cleaning plate 3 reciprocates up and down, it drives the cylinder 41 to reciprocate, and then drives the scraper 4 to reciprocate, and then cleans the bottom of the sampling tank 1.

[0032] Preferably, Figure 3 and Figure 7 As shown, a pair of sampling holes 101 arranged up and down are provided on the surface of the sampling tank 1, and a valve plate 8 with a liftable and hollow structure is sealed and connected to the surface of the sampling tank 1. The valve plate 8 is provided with through holes 82 corresponding to the sampling holes 101 one by one, and the valve plate 8 is fixedly connected with a water outlet 81. When the valve plate 8 is in the middle position, the two sampling holes 101 and the two through holes 82 are staggered, and no water flows out of the water outlet 81 at this time; when the valve plate 8 moves upward, the upper through hole 82 coincides with the upper sampling hole 101, and the sewage flows into the valve plate 8 from the upper sampling hole 101, and finally flows out from the water outlet 81; when the valve plate 8 moves downward, the lower through hole 82 coincides with the lower sampling hole 101, and the sewage flows into the valve plate 8 from the lower sampling hole 101, and finally flows out from the water outlet 81. When the sewage in the sampling tank 1 is left to stand, it is convenient to take sewage at different heights.

[0033] Working principle: before sampling, the sampling tank 1 is cleaned first, and the manual downward pressure frame 210 is completely lowered, driving the lifting seat 2 to completely lower, so that the height of the lifting seat 2 is lower than the height of the end of the water inlet pipe 6. The lifting seat 2 drives the valve core to descend, and the valve body 5 is opened. The sewage enters the sampling tank 1 through the water inlet pipe 6. When the sewage passes through the vortex hole 22, it drives the turbine blade group 23 to rotate, and then drives the rotating cylinder 24 to rotate. When the rotating cylinder 24 rotates, it drives the second lifting rod 26 to reciprocate up and down, and then drives the cleaning plate 3 to reciprocate up and down, so as to clean the inner wall of the sampling tank 1. At the same time, when the cleaning plate 3 reciprocates up and down, it drives the cylinder 41 to reciprocate, thereby driving The movable scraper 4 reciprocates to clean the bottom of the sampling tank 1, and the cleaned sewage is completely discharged from the drain pipe 7, so that the inside of the sampling tank 1 is completely cleaned to prevent the sample from being contaminated by the dirt on the inner wall of the sampling tank 1; after cleaning, the pressing frame 210 is released, and the pressing frame 210 and other components such as the lifting seat 2 rise and reset, and then sampling is carried out. When sampling, the pressing frame 210 is manually pressed down to half the stroke, and the pressing frame 210 drives the lifting seat 2 to descend to half the stroke, and the lifting seat 2 drives the valve core 52 to descend, and the valve body 5 is opened, and the sewage enters the sampling tank 1 through the water inlet pipe 6, and finally is sampled into the test tube through the water outlet 81 for the next step of detection.

[0034] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A zero-discharge sewage sampling and detection device, characterized in that: include: A sampling tank (1), the sampling tank (1) is connected to a water inlet pipe (6), one end of the water inlet pipe (6) is fixedly connected to a valve body (5), and the valve body (5) is connected to a sewage pipe; The bottom of the sampling tank (1) is fixedly connected to a drain pipe (7), and the drain pipe (7) is connected to a valve (71); A liftable valve core (52) is connected to the valve body (5) for controlling the opening and closing of the valve body (5); a valve stem (54) is fixedly connected to the valve core (52); the valve stem (54) passes through the water inlet pipe (6) and one end of the valve stem extends into the interior of the sampling tank (1); A lifting seat (2) is provided inside the sampling tank (1) for driving the valve stem (54) to move up and down. A first lifting rod (28) is fixedly connected to the lifting seat (2). The upper end of the first lifting rod (28) extends to the outside of the sampling tank (1) and is fixedly connected to a pressing frame (210). When the pressing frame (210) descends, the lifting seat (2) is driven to descend. When the lifting seat (2) descends, the valve core (52) is driven to descend through the valve stem (54), thereby opening the valve body (5); The inner wall of the sampling tank (1) is connected to a ring-shaped lifting cleaning plate (3) for cleaning the sampling tank (1); The lifting seat (2) is disc-shaped and contacts the inner wall of the sampling tank (1). A vortex hole (22) is provided at the center of the lifting seat (2). A turbine blade group (23) is rotatably connected in the vortex hole (22). A rotating cylinder (24) is coaxially connected to the turbine blade group (23) for driving the cleaning plate (3) to reciprocate up and down. The cleaning plate (3) is fixedly connected to a second lifting rod (26), which is movably connected to the lifting seat (2); a pair of spiral grooves (25) with opposite spiral directions are provided on the surface of the rotating cylinder (24); a slider (27) slidably connected to the spiral groove (25) is rotatably connected to the second lifting rod (26); when the rotating cylinder (24) rotates, the slider (27) is driven to move up and down, thereby driving the cleaning plate (3) to move up and down; After the lifting seat (2) has descended halfway, the valve body (5) is opened, and when the sampling tank (1) is sampling water, the height at which the lifting seat (2) has descended is higher than the height of the water inlet pipe (6); when the lifting seat (2) has completely descended, the height of the lifting seat (2) is lower than the water inlet pipe (6), and the water inlet pipe (6) allows the sewage to flow to the upper surface of the lifting seat (2).

2. A wastewater zero discharge sampling and detection device according to claim 1, characterized in that: The bottom of the sampling tank (1) is rotatably connected to a plurality of cylinders (41), and the cylinders (41) are evenly distributed along the circumference of the bottom of the sampling tank (1); a scraper (4) is coaxially fixedly connected to the cylinder (41) and is used to clean the bottom of the sampling tank (1); when the cylinder (41) rotates, the scraper (4) is driven to rotate.

3. A wastewater zero discharge sampling and detection device according to claim 2, characterized in that: The cleaning plate (3) is fixedly connected to a support rod (31) corresponding to the cylinder (41) in a one-to-one manner, and a sliding portion (32) is provided at the end of the support rod (31). The surface of the cylinder (41) is provided with a spiral guide groove (42) slidably connected to the sliding portion (32). When the cleaning plate (3) reciprocates up and down, it drives the cylinder (41) to reciprocate.

4. A sewage zero discharge sampling and detection device according to claim 3, characterized in that: A diverter plate (21) is fixedly connected below the lifting seat (2), a pressure rod (211) is fixedly connected below the diverter plate (21), one end of the valve stem (54) is fixedly connected to a retaining frame (55) movably connected to the pressure rod (211), and a first spring (212) is connected to the surface of the pressure rod (211).

5. A wastewater zero discharge sampling and detection device according to claim 4, characterized in that: The valve body (5) is of a cylindrical structure, a circular ring body (51) is fixedly connected to the inner wall of the upper end of the valve body (5), the valve core (52) is sealingly and movably connected to the circular ring body (51), and a cylindrical filter screen (53) is fixedly connected below the circular ring body (51).

6. A wastewater zero discharge sampling and detection device according to claim 5, characterized in that: A telescopic rod (9) is fixedly connected between the pressing frame (210) and the top of the sampling tank (1), and a second spring (29) is connected between the pressing frame (210) and the sampling tank (1).

7. A wastewater zero discharge sampling and detection device according to claim 6, characterized in that: A pair of sampling holes (101) arranged in an upper and lower manner are provided on the surface of the sampling tank (1); a valve plate (8) with a hollow structure that can be raised and lowered is sealedly connected to the surface of the sampling tank (1); through holes (82) corresponding to the sampling holes (101) are provided on the valve plate (8); and a water outlet (81) is fixedly connected to the valve plate (8); when the valve plate (8) is in a middle position, the two sampling holes (101) and the two through holes (82) are staggered, and water does not flow out of the water outlet (81); when the valve plate (8) moves upward, the upper through hole (82) overlaps with the upper sampling hole (101).

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