A multi-depth integrated sampler for a sewage biological tank

Abstract

The utility model relates to sewage treatment technical field, concretely relates to a kind of multi-depth integrated sampler of sewage biological pool, including fixing device and sampling device. Through fixing device, sampling device is fixed in the periphery of biological pool pool body, and sampling device includes sleeve, a plurality of sample tubes are arranged on sleeve from bottom to top, sample one-way valve is arranged at the front end of sample tube, each sample tube is connected with sampling tube in sleeve respectively, sampling tube extends to pool body and is sampled by sampling bottle;And setting up backflush pipe on sleeve, backflush pipe is connected with sampling tube, and backflush device is set up by relying on biological pool aeration pipeline, liquid in sampling tube is blown out from backflush pipe by gas source in aeration pipeline. The utility model can realize the sampling of different depth water layer, using fixed installation and gas backflush mode, can be directly sampled, convenient and fast in process, and avoid the mutual interference of sample between different water layers, convenient for use in actual production.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a multi-depth integrated sampler for wastewater biological ponds. Background Technology

[0002] In order to achieve the recycling of water resources, domestic wastewater is often purified in sewage treatment plants. Currently, sewage treatment mostly adopts biological treatment methods, using anaerobic, anoxic and aerobic methods to utilize the biological activities of microorganisms to achieve water purification and recycling.

[0003] Existing anaerobic, anoxic, and aerobic biological tanks are used for biological treatment of wastewater. Due to the large volume and depth of the biological tanks, stirring and other methods are generally used during the wastewater treatment process to make the water in the tank as uniform as possible. However, mass transfer takes a certain amount of time. Even with stirring in the tank, uneven mixing and dead zones can easily occur, affecting the quality of the effluent.

[0004] Therefore, in actual operation, it is necessary to sample and test the water layers at different depths in the biological pond. Comparing the test data is of positive significance for guiding the operation of the biological pond. However, when sampling different water layers in the biological pond, if sampling tubes are used, the sampling tubes are lowered from top to bottom. Due to the lack of isolation measures, different water layers are prone to cross-contamination in the sampling tubes, making it difficult to guarantee the accuracy of the test and bringing considerable errors to the actual test. This cannot accurately guide the operation of the pond.

[0005] Therefore, this utility model proposes a multi-depth integrated sampler for sewage biological ponds, which is assembled by attaching to the pond body, eliminating the need for frequent lifting and disassembly, making it more convenient to use. At the same time, it can effectively avoid mutual interference between different water layers, making it more convenient for actual production use. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the existing technology by providing a multi-depth integrated sampler for wastewater biological ponds, so as to facilitate the sampling of water samples at different depths in wastewater treatment biological ponds.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-depth integrated sampler for a wastewater biological pond, comprising a sampling device; the sampling device includes a sleeve, in which multiple sampling tubes are arranged, and inlet tubes are respectively arranged at different heights on the sleeve, and an inlet one-way valve is respectively arranged at the front end of each inlet tube, with the inlet tube corresponding to the sampling tube; the sampling tubes cooperate with the sampling bottle, and an air extraction port is arranged on one side of the sampling bottle, the air extraction port being connected to an air extraction device.

[0008] Furthermore, it also includes an installation device, which includes a fixing plate and a fixing device. One end of the fixing plate is fixedly connected to the biological pool body, and the other end of the fixing plate is provided with a mating hole. A mating groove is provided on the outside of the mating hole, and the mating groove mates with the sample inlet tube. Fixing bolts are provided around the mating hole. The fixing device is fixedly installed on the sleeve, and a fixing slot is provided in the fixing device. The fixing bolts mate with the fixing slot.

[0009] Furthermore, the fixing device includes a fixing plate, which has two mating parts. Each fixing plate has an arc-shaped mating part that mates with the sleeve, and each fixing plate has a connecting part on both sides that mates with the other fixing plate. A rubber ring is provided between the fixing plate and the sleeve, and a connecting bolt is connected through the connecting part. Fixing slots are provided on the fixing plate.

[0010] Furthermore, a PTFE stopcock is provided at the mouth of the sampling bottle, and the sampling tube is sealed to the PTFE stopcock; the suction device includes a suction hose, one end of which is connected to the suction port, and the other end of which is connected to the air bladder. A one-way inlet valve is provided on the side of the air bladder connected to the suction hose, and a one-way outlet valve is provided on the side of the air bladder away from the suction hose.

[0011] Furthermore, the sampling device also includes a backflush tube, and the sampling tube is connected to the sample inlet tube and the backflush tube respectively through a tee. A backflush one-way valve is provided at the front end of the backflush tube; the backflush tube is matched with the mating groove.

[0012] Furthermore, the backflush pipe is used in conjunction with the backflush device, which includes an aeration pipe connected to one end of an air pipe. An air source ball valve is installed on the air pipe, and the other end of the air pipe is used in conjunction with a sampling pipe.

[0013] The beneficial effects of this utility model are: 1. This utility model can achieve separate sampling of water at different depths in the biological tank, which can effectively avoid mutual interference between samples. By analyzing water samples at different depths and comparing the differences in water sample parameters, it can guide the adjustment and optimization of the operating process, which helps to ensure the stable operation of the sewage treatment process. 2. This utility model is fixed in the pool body at all times during use, eliminating the need for frequent lifting and making it more convenient to use; at the same time, it uses on-site aeration pipes as the air source for backflushing, which is more economical and reasonable, and enables continuous sampling, bringing convenience to actual use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall layout and installation structure of this utility model; Figure 2 This is a utility model Figure 1A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the mounting plate structure of this utility model; Figure 4 This is a schematic diagram of the fixing device structure of this utility model; Figure 5 This is a utility model Figure 1 A magnified view of part B in the middle section; Figure 6 This is a schematic diagram of the sampler structure of this utility model; Figure 7 This is a schematic diagram of the backflush device of this utility model.

[0015] The names corresponding to each mark in the diagram: 1. Biological tank; 2. Tank body; 21. Guardrail; 3. Installation device; 31. Mounting plate; 311. Mounting hole; 312. Mating hole; 313. Mating groove; 314. Fixing bolt; 32. Fixing device; 321. Fixing plate; 322. Connecting bolt; 323. Rubber ring; 324. Fixing groove hole; 4. Sampling device; 41. Sleeve; 42. Sampling tube; 421. PE T-type positive tee quick connector; 422. Sampling tube; 4221. Sampling check valve; 423. Backflush tube; 4231. Backflush check valve; 43. Sampling bottle; 431. PTFE stopcock; 432. Air extraction device; 5. Aeration pipe; 51. PC threaded straight quick connector; 52. Air source ball valve; 53. PU straight quick connector. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] Embodiments of this utility model: like Figure 1-7 As shown in the figure, in this embodiment, the sampler is installed and arranged based on the pool body 2 of the biological pool 1.

[0018] An installation device 3 is provided for the installation and fixation of the sampling device 4. The installation device 3 includes an installation plate 31, which is set according to the spacing between adjacent railings in the guardrail 21 of the biological pool 1. An installation hole 311 is provided on one side of the installation plate 31. Anchor bolts are pre-embedded in the pool body 2. The installation and fixation of the installation plate 31 are achieved by the cooperation of the anchor bolts with the installation hole 311. A mating hole 312 is provided on the other side of the installation plate 31. The mating hole 312 is mated with the sleeve 41 of the sampling device 4. A mating groove 313 is provided on the outside of the mating hole 312. The mating groove 313 is mated with the inlet pipe 422 and the backflush pipe 423 on the sampling device 4.

[0019] A fixing device 32 is provided on the sleeve 41 of the sampling device 4. The fixing device 32 includes two fixing plates 321. The two fixing plates 321 are provided with arc-shaped mating parts that cooperate with the sleeve 41, and connecting parts are provided on both sides of the fixing plates 321. A rubber ring 323 is provided between the fixing plate 321 and the sleeve 41. The connecting bolt 322 is connected through the connecting parts. The fixing plate 321 compresses the rubber ring 323 to deform, so that the fixing device 32 is fastened to the sleeve 41.

[0020] Fixing slots 324 are provided on the two fixing plates 321 of the fixing device 32. Fixing bolts 314 are provided on the upper and lower sides of the mating hole 312 on the mounting plate 31. The fixing bolts 314 and the fixing slots 324 cooperate to realize the installation and fixation of the sampling device 4 on the mounting plate 31.

[0021] The sampling device 4 includes a sleeve 41, the lower end of which is sealed. Three sampling tubes 42 are installed in the sleeve 41. Three inlet tubes 422 are installed on the sleeve 41 from bottom to top, and the three inlet tubes 422 correspond one-to-one with the three sampling tubes 42. A backflush tube 423 is installed below each inlet tube 422. The sampling tubes 42 are connected to the inlet tubes 422 and the backflush tubes 423 respectively through PE T-type positive tee quick connectors 421. A one-way valve 4221 is installed on the inlet tubes 422 and a one-way valve 4231 is installed on the backflush tubes 423.

[0022] The sampling tube 42 can be connected to the sampling bottle 43 or the backflush device on the pool body 2. A PTFE stopcock 431 is provided at the top of the sampling bottle 43. The sampling tube 42 extends through the PTFE stopcock 431 into the sampling bottle 43. An air extraction port is provided on one side of the sampling bottle 43. The air extraction port is connected to the air extraction device 432. An air extraction hose is provided in the air extraction device 432. One end of the air extraction hose is connected to the air extraction port, and the other end of the air extraction hose is connected to the air bladder. A one-way air inlet valve is provided on the side of the air bladder connected to the air extraction hose. The one-way air inlet valve allows the gas in the sampling bottle to flow into the air bladder. A one-way air outlet valve is provided on the side of the air bladder opposite to the air extraction hose. The one-way air outlet valve allows the gas in the air bladder to flow into the outside atmosphere. In this embodiment, the sampling bottle 43 is a commonly used laboratory vacuum filtration bottle.

[0023] The backflush device is set up based on the aeration pipe 5 of the biological tank 1. A PC threaded quick-connect connector 51 is installed on the aeration pipe 5. The PC threaded quick-connect connector 51 is connected to the air pipe. An air source ball valve 52 is set on the air pipe. The other side of the air pipe is connected to a PU quick-connect connector 53. The other end of the PU quick-connect connector 53 is connected to the sampling tube 42.

[0024] The principle of this utility model is as follows: In this invention, the biological pond 1 can be an aerobic pond or an anoxic pond, etc.

[0025] Taking an aerobic pond as an example, if an aerobic pond has a depth of 7m and an effective water depth of 6m, samples at different water depths, such as 1m, 3m and 5m, can be collected using the sampler of this utility model; the sampler is installed first in the process.

[0026] Since pool 2 is a concrete structure, mounting plates 31 (which can be made of steel) are installed on pool 2 through the gaps between the railings. One side of the mounting plate 31 is fitted with mounting holes 311 on the mounting plate 31 by pre-embedded anchor bolts (expansion bolts). In this utility model, the outer sleeve 41 of the sampling device 4 can be made of plastic, such as PVC pipe or PE pipe. The lower end of the sleeve 41 is sealed, and the diameter is 50mm. A fixing device 32 (the fixing plate 321 can be made of steel) is installed on the sleeve 41. Then, three sampling tubes 42 are inserted into the sleeve 41 respectively. The sampling tubes 42 can be made of PU tubing with an inner diameter of 6mm. The front end of the sampling tubes 42 is connected to a PE tube. The T-type positive tee quick connector 421 is connected to the sample inlet tube and the backflush tube respectively. Then, the sampling tube 42 is inserted into the sleeve 41. A hole is pre-made on the sleeve 41 to match the sample inlet tube and the backflush tube (this hole can be slightly larger, such as 20mm in diameter, to facilitate the removal of the sample inlet tube and the backflush tube from the hole). After the sampling tube 42 is inserted into the corresponding position, the sample inlet tube and the backflush tube are taken out from the above-mentioned opening. The sample inlet tube is connected to the sample inlet tube 422 through the reducing tube, and the backflush tube is connected to the backflush tube 423. Then, the sample inlet tube 422 and the backflush tube 423 are inserted into the above-mentioned opening. The joint is sealed and fixed with sealant.

[0027] After the above operations are completed, the entire sleeve 41 is lowered into the biological tank 1 through the mating hole 312 on the mounting plate 31. During the process, the fixing bolt 314 is engaged with the fixing slot 324, and then the connecting nut is used to fix the sleeve 41. The three sampling tubes 42 can be labeled to indicate the depth of the water layer and fixed to the guardrail 21 by cable ties or the like.

[0028] During sampling, one of the sampling tubes 42 is connected to the sampler, and the air bladder is inflated, thus achieving sampling at the corresponding water depth. It is important to note that during sampling, the sampling check valve 4221 on the sampling tube 422 should not open automatically under the water pressure at that depth. For example, for the sampling check valve 4221 at 5m, an axial flow check valve (umbrella-type check valve) can be used. Due to the water pressure, the minimum opening pressure of the sampling check valve 4221 should be set to be no less than 0.05Mpa.

[0029] After sampling, since there is liquid in the sampling tube 42, which will affect the next sampling, it is necessary to drain it. In this utility model, relying on the original aeration pipe 5 of the biological tank 1, a backflush device is installed to drain the liquid. After sampling, the PU straight quick connector 53 is connected to the sampling tube 42, and the air source ball valve 52 is opened. Then, under the action of air pressure, the liquid in the sampling tube 42 can be discharged from the backflush one-way valve 4231. During the process, a small amount of liquid may remain in the sample inlet tube 422, but it will not affect the next sampling (or the method of discarding the first sample can be adopted). At the same time, during use, it can be disassembled, cleaned and maintained regularly or in time.

Claims

1. A multi-depth integrated sampler for a wastewater biological tank, characterized by: The device includes a sampling apparatus; the sampling apparatus includes a sleeve, in which multiple sampling tubes are arranged, and injection tubes are arranged at different heights on the sleeve. Each injection tube has a one-way valve at its front end, and the injection tubes correspond one-to-one with the sampling tubes. The sampling tubes are matched with sampling bottles, and an air extraction port is arranged on one side of the sampling bottle, which is connected to an air extraction device.

2. A multi-depth integrated sampler for a wastewater biological tank according to claim 1, characterized in that: It also includes an installation device, which includes a fixing plate and a fixing device. One end of the fixing plate is fixedly connected to the biological pool body, and the other end of the fixing plate is provided with a mating hole. A mating groove is provided on the outside of the mating hole. The mating groove mates with the sample inlet tube. Fixing bolts are provided around the mating hole. The fixing device is fixedly installed on the sleeve. A fixing slot is provided in the fixing device, and the fixing bolts mate with the fixing slot.

3. A multi-depth integrated sampler for a wastewater biological tank according to claim 2, characterized in that: The fixing device includes a fixing plate with two mating parts. Each fixing plate has an arc-shaped mating part that mates with the sleeve. Each fixing plate has a connecting part on both sides that mates with the other fixing plate. A rubber ring is provided between the fixing plate and the sleeve. A connecting bolt is connected through the connecting part. Fixing slots are provided on the fixing plate.

4. The multi-depth integrated sampler for a wastewater biological treatment tank according to claim 1, characterized in that: The sampling bottle is equipped with a PTFE stopcock at the bottle mouth, and the sampling tube is sealed to the PTFE stopcock; the suction device includes a suction hose, one end of which is connected to the suction port, and the other end of which is connected to the air bladder. A one-way inlet valve is provided on the side of the air bladder connected to the suction hose, and a one-way outlet valve is provided on the side of the air bladder away from the suction hose.

5. The multi-depth integrated sampler for a wastewater biological tank according to claim 2, characterized by: The sampling device also includes a backflush tube, and the sampling tube is connected to the sample inlet tube and the backflush tube respectively through a tee. A backflush one-way valve is provided at the front end of the backflush tube; the backflush tube is matched with the mating groove.

6. A multi-depth integrated sampler for a wastewater biological tank according to claim 5, characterized in that: The backflush pipe is used in conjunction with the backflush device, which includes an aeration pipe connected to one end of an air pipe. An air source ball valve is installed on the air pipe, and the other end of the air pipe is connected to a sampling pipe.

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