CN213397744U - Effluent water sump sampling device and effluent water sump sampling system - Google Patents
Effluent water sump sampling device and effluent water sump sampling system Download PDFInfo
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- CN213397744U CN213397744U CN202022015899.8U CN202022015899U CN213397744U CN 213397744 U CN213397744 U CN 213397744U CN 202022015899 U CN202022015899 U CN 202022015899U CN 213397744 U CN213397744 U CN 213397744U
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Abstract
The utility model relates to a effluent water sump sampling device and effluent water sump sampling system. Effluent water sump sampling device includes: the sampling cylinder is used for being placed in sewage of the sewage pool; the check valve is arranged on the sampling cylinder, and sewage in the sewage tank enters the sampling cylinder when the check valve is opened; the gas source is connected with the sampling cylinder through a gas inlet pipeline and is used for pressing out sewage entering the sampling cylinder; one end of the sampling pipeline is connected with the sampling cylinder, the other end of the sampling pipeline is arranged outside the closed space, and sewage squeezed out of the sampling cylinder flows out of the closed space through the sampling pipeline; an air inlet valve arranged on the air inletThe source or the air inlet pipeline is arranged on the air inlet pipeline to control the on-off of the air inlet pipeline. Realizes totally-enclosed sampling, and ensures that operating personnel can not contact with high-content H in the sewage tank2S gas, overcome H2Risk of S poisoning.
Description
Technical Field
The utility model relates to a effluent water sump sampling device and effluent water sump sampling system.
Background
The produced water of the gas well for producing the high-sulfur-content gas field contains H2S, suspended matters, sulfides, ammonia nitrogen, chloride ions and other pollutants, the produced water needs to be collected to a sewage tank in a centralized manner, and the sewage is treated by adding coagulant, flocculant, desulfurizing agent and other agents, so that the stratum reinjection is carried out after the comprehensive discharge standard of the sewage is met.
Because the sewage contains H2S toxic gas, so that the upper part of the sewage pool is provided with a gas collecting hood, and the periphery of the sewage pool is sealed by a plastic steel enclosing plate. A tail gas recovery pipeline is reserved at the top of the gas collecting hood, and the H in the sewage tank is recovered by a fan2S gas is pumped to a sulfur removal device for tail gas treatment, and when the fan works, micro negative pressure in the sewage tank is always kept, so that H is avoided2The S gas escapes. Wherein, the sewage pool, the plastic steel coaming and the gas-collecting hood jointly enclose a closed space.
In order to master the sewage treatment effect, the sewage in the sewage tank needs to be sampled and analyzed through a reserved sampling port (normally in a closed state) on the plastic steel enclosing plate. The existing sewage sampling mode is that a sampling person opens a reserved sampling port, a sampling bottle is hung by a rope for sampling, and a large amount of H-containing sewage can be volatilized from the sewage in a sewage pool2S gas, presence of sampling personnel H2S poisoning.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a effluent water sump sampling device to solve prior artThe sewage sampling mode in (1) easily leads to a sampling person H2S poisoning; an object of the utility model is to provide a effluent water sump sampling system to the sewage sample mode of solving among the prior art leads to sample personnel H easily2S poisoning.
In order to achieve the above object, the utility model discloses effluent water sump sampling device's technical scheme is:
effluent water sump sampling device includes:
the sampling cylinder is used for being placed in sewage of the sewage pool;
the check valve is arranged on the sampling cylinder, and sewage in the sewage tank enters the sampling cylinder when the check valve is opened;
the gas source is connected with the sampling cylinder through a gas inlet pipeline and is used for pressing out sewage entering the sampling cylinder;
one end of the sampling pipeline is connected with the sampling cylinder, the other end of the sampling pipeline is arranged outside the closed space, and sewage squeezed out of the sampling cylinder flows out of the closed space through the sampling pipeline;
and the air inlet valve is arranged on the air source or the air inlet pipeline so as to control the on-off of the air inlet pipeline.
The beneficial effects are that: before sampling, the check valve is in a closed state; when sampling, opening a sampling valve and a check valve, and enabling sewage in the sewage tank to enter a sampling cylinder; after a set amount of sewage is taken from the sampling cylinder, the air inlet valve is opened, the sewage in the sampling cylinder is discharged to the outlet end of the sampling pipeline through the sampling pipeline under the action of high-pressure gas, so that the sampling operation is realized, and in the process, the check valve is in a closed state. Realizes totally-enclosed sampling, and ensures that operating personnel can not contact with high-content H in the sewage tank2S gas, overcome H2Risk of S poisoning.
Furthermore, a sampling valve is arranged on the sampling pipeline to control the on-off of the sampling pipeline; and a backflow pipeline is connected between the sampling valve and the sampling cylinder on the sampling pipeline, the outlet end of the backflow pipeline is used for being arranged in the closed space, and the backflow pipeline is provided with a backflow valve to control the on-off of the backflow pipeline.
The beneficial effects are that: under high-pressure gas's effect, remaining sewage in sampling pipeline and the sampling tube discharges into the sewage pond again through the return line, guarantees the drying of sampling pipeline, clean, avoids influencing the sample next time.
Further, the sampling cylinder is an annular buoy, and the sampling cylinder is used for being sleeved on a positioning rod in the sewage tank and sliding on the positioning rod along the vertical direction.
The beneficial effects are that: make the axial slip of sampling tube on the locating lever, nevertheless can not have the removal of great distance in the radial of locating lever to avoid dragging air inlet pipeline and sample pipeline, guarantee that air inlet pipeline and sample pipeline can not damage, prolong air inlet pipeline and sample pipeline's life.
Furthermore, a buoy is fixedly arranged on the sampling cylinder.
The beneficial effects are that: the sampling tube floats up and down along with the liquid level of the sewage, so that the sewage can be ensured to be in contact with the check valve all the time, the sewage in the sewage tank is ensured to enter the sampling tube, and the check valve can be prevented from being blocked at the bottom of the tank.
Further, the sampling tube is an annular tube, the flotation pontoon is an annular flotation pontoon, and the annular flotation pontoon sets firmly in the outside or the inboard of annular tube, and annular tube or annular flotation pontoon are used for the cover to establish on the locating lever in the sewage pond to slide along vertical direction on the locating lever.
The beneficial effects are that: make sampler barrel and flotation pontoon axial slip on the locating lever, nevertheless can not have the removal of great distance in the radial of locating lever to avoid dragging air inlet pipeline and sampling line, guarantee that air inlet pipeline and sampling line can not damage, prolong air inlet pipeline and sampling line's life.
In order to achieve the above object, the utility model discloses effluent water sump sampling system's technical scheme is:
the sewage pool sampling system comprises a sewage pool, a surrounding plate, a gas collecting hood and a sewage pool sampling device, wherein the sewage pool, the surrounding plate and the gas collecting hood form a closed space;
effluent water sump sampling device includes:
the sampling cylinder is used for being placed in sewage of the sewage pool;
the check valve is arranged on the sampling cylinder, and sewage in the sewage tank enters the sampling cylinder when the check valve is opened;
the gas source is connected with the sampling cylinder through a gas inlet pipeline and is used for pressing out sewage entering the sampling cylinder;
one end of the sampling pipeline is connected with the sampling cylinder, the other end of the sampling pipeline is arranged outside the closed space, and sewage squeezed out of the sampling cylinder flows out of the closed space through the sampling pipeline;
and the air inlet valve is arranged on the air source or the air inlet pipeline so as to control the on-off of the air inlet pipeline.
The beneficial effects are that: before sampling, the check valve is in a closed state; when sampling, opening a sampling valve and a check valve, and enabling sewage in the sewage tank to enter a sampling cylinder; after a set amount of sewage is taken from the sampling cylinder, the air inlet valve is opened, the sewage in the sampling cylinder is discharged to the outlet end of the sampling pipeline through the sampling pipeline under the action of high-pressure gas, so that the sampling operation is realized, and in the process, the check valve is in a closed state. Realizes totally-enclosed sampling, and ensures that operating personnel can not contact with high-content H in the sewage tank2S gas, overcome H2Risk of S poisoning.
Furthermore, a sampling valve is arranged on the sampling pipeline to control the on-off of the sampling pipeline; and a backflow pipeline is connected between the sampling valve and the sampling cylinder on the sampling pipeline, the outlet end of the backflow pipeline is used for being arranged in the closed space, and the backflow pipeline is provided with a backflow valve to control the on-off of the backflow pipeline.
The beneficial effects are that: under high-pressure gas's effect, remaining sewage in sampling pipeline and the sampling tube discharges into the sewage pond again through the return line, guarantees the drying of sampling pipeline, clean, avoids influencing the sample next time.
Further, the sampling cylinder is an annular buoy, and the sampling cylinder is used for being sleeved on a positioning rod in the sewage tank and sliding on the positioning rod along the vertical direction.
The beneficial effects are that: make the axial slip of sampling tube on the locating lever, nevertheless can not have the removal of great distance in the radial of locating lever to avoid dragging air inlet pipeline and sample pipeline, guarantee that air inlet pipeline and sample pipeline can not damage, prolong air inlet pipeline and sample pipeline's life.
Furthermore, a buoy is fixedly arranged on the sampling cylinder.
The beneficial effects are that: the sampling tube floats up and down along with the liquid level of the sewage, so that the sewage can be ensured to be in contact with the check valve all the time, the sewage in the sewage tank is ensured to enter the sampling tube, and the check valve can be prevented from being blocked at the bottom of the tank.
Further, the sampling tube is an annular tube, the flotation pontoon is an annular flotation pontoon, and the annular flotation pontoon sets firmly in the outside or the inboard of annular tube, and annular tube or annular flotation pontoon are used for the cover to establish on the locating lever in the sewage pond to slide along vertical direction on the locating lever.
The beneficial effects are that: make sampler barrel and flotation pontoon axial slip on the locating lever, nevertheless can not have the removal of great distance in the radial of locating lever to avoid dragging air inlet pipeline and sampling line, guarantee that air inlet pipeline and sampling line can not damage, prolong air inlet pipeline and sampling line's life.
Drawings
Fig. 1 is a schematic structural diagram of a sewage pool sampling system of the present invention in an embodiment 1;
fig. 2 is a schematic structural diagram of a sewage pool sampling system of the present invention in embodiment 2;
fig. 3 is a schematic structural diagram of a sewage pool sampling system according to embodiment 3 of the present invention;
in the figure: 1-a sewage tank; 2-sewage; 3-enclosing plates; 4-gas collecting channel; 5-a gas collection line; 6-a tail gas treatment unit; 7-water inlet line; 8-water outlet line; 9-a base; 10-positioning a rod; 11-a sampling tube; 12-a buoy; 13-a check valve; 14-an air intake line; 15-a sampling line; 16-a gas cylinder; 17-an intake valve; 18-a sampling valve; 19-a reflux valve; 20-a return line; 21-sampling a flexible tube section; 22-flexible line for intake.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses effluent water sump sampling system's embodiment 1:
as shown in fig. 1, the effluent water sump sampling system comprises an effluent water sump 1, a surrounding plate 3 and a gas-collecting channel 4, wherein the effluent water sump 1 is formed by sinking the ground, the surrounding plate 3 is arranged at the edge of the effluent water sump 1, the surrounding plate 3 is made of plastic steel, the gas-collecting channel 4 is arranged above the surrounding plate 3, and the gas-collecting channel 4 is made of a tension film.
Wherein, the sewage pool 1, the coaming 3 and the gas-collecting hood 4 jointly enclose a closed space to prevent H in the sewage pool 12S, etc. are spilled into the atmosphere.
In this embodiment, the wastewater tank 1 has a water inlet pipeline 7 and a water outlet pipeline 8, the produced water in the gas well enters the wastewater tank 1 through the water inlet pipeline 7 to form wastewater 2, and the wastewater 2 is treated by coagulant, flocculant, desulfurizing agent and other agents and then flows out through the water outlet pipeline 8.
Wherein, the water inlet pipeline 7 and the water outlet pipeline 8 are both provided with valves to respectively control the on-off of the water inlet pipeline 7 and the water outlet pipeline 8.
In this embodiment, a gas collecting line 5 is disposed at the top of the gas collecting hood 4, one end of the gas collecting line 5 is located in the sealed space, the other end of the gas collecting line 5 is connected to a tail gas processing unit 6, and the tail gas processing unit 6 is used for processing H in the tail gas2S and the like.
In order to safely sample the sewage 2 in the sewage tank 1, as shown in fig. 1, the sewage tank sampling system further comprises a sewage tank sampling device, the sewage tank sampling device comprises a sampling cylinder 11, the sampling cylinder 11 is placed in the sewage 2 in the sewage tank 1, a check valve 13 is arranged at the bottom of the sampling cylinder 11, and when the check valve 13 is opened, the sewage 2 in the sewage tank 1 enters the sampling cylinder 11.
In this embodiment, the top of the sampling tube 11 is connected to one end of the gas inlet pipeline 14, the other end of the gas inlet pipeline 14 is connected to the gas cylinder 16, and the gas in the gas cylinder 16 is nitrogen, so as to avoid chemical reaction with the sewage 2. In other embodiments, the gas in the cylinder may be other inert gases.
The air inlet pipeline 14 is provided with an air inlet valve 17, and the air bottle 16 and the air inlet valve 17 are both arranged outside the closed space, of course, in other embodiments, the air inlet valve may be arranged at the bottle mouth of the air bottle; when the air inlet valve 17 is opened, the air bottle 16 inputs high-pressure air into the sampling cylinder 11 to press out the sewage entering the sampling cylinder 11.
Wherein the gas cylinder 16 constitutes a gas source. In other embodiments, the air source may be an air compressor.
It should be noted that the check valve 13 in this embodiment is closed under the pressure of the high pressure gas. In other embodiments, the check valve is a solenoid valve, i.e., does not require the pressure of high pressure gas to effect its closing.
In this embodiment, the bottom of sampling tube 11 is connected the one end of sampling pipeline 15, and the other end of sampling pipeline 15 is outside airtight space, and outside the exit end of sampling pipeline 15 was in airtight space, the outside of airtight space was flowed out to the sewage 2 that sampling pipeline 15 supplied the interior extrusion of sampling tube 11.
In this embodiment, the sampling pipeline 15 is provided with a sampling valve 18, the sampling valve 18 is located outside the closed space, and the sampling valve 18 is used for controlling the on-off of the sampling pipeline 15; wherein, be connected with return line 20 on sampling line 15 between sample valve 18 and sampler barrel 11, return line 20's exit end is in airtight space and stretches into in sewage 2, is equipped with return valve 19 on the return line 20, and return valve 19 is in the outside of airtight space, and return valve 19 is used for controlling the break-make of return line 20.
In order to avoid the blocking of the check valve 13, a float 12 is fixed on the sampling tube 11. Specifically, the sampling cylinder 11 in this embodiment is an annular cylinder, the float 12 is an annular float, and the float 12 is fixedly disposed outside the sampling cylinder 11, so that the sampling cylinder 11 floats up and down along with the liquid level of the sewage 2, which not only ensures that the sewage 2 and the check valve 13 are always in contact with each other, ensures that the sewage 2 in the sewage tank 1 enters the sampling cylinder 11, but also prevents the check valve 13 from being blocked due to being located at the bottom of the tank.
In order to avoid that sampling cylinder 11 and buoy 12 float freely in sump 1, air inlet line 14 and sampling line 15 are pulled, resulting in damage to air inlet line 14 and sampling line 15. In this embodiment, the bottom of the wastewater tank 1 is fixedly provided with the base 9, the base 9 is fixedly provided with the positioning rod 10, the positioning rod 10 is arranged along the vertical direction, and the sampling cylinder 11 and the buoy 12 are sleeved on the positioning rod 10, so that the sampling cylinder 11 and the buoy 12 can axially slide on the positioning rod 10, but cannot radially move at a larger distance from the positioning rod 10.
In order to adapt to the up-and-down floating of the sampling cylinder 11, in the embodiment, the air inlet pipeline 14 is provided with an air inlet flexible pipe section 22, and the air inlet flexible pipe section 22 is arranged along the vertical direction; the sampling line 15 has a sampling flexible pipe section 21, and the sampling flexible pipe section 21 is arranged in a vertical direction. In other embodiments, the intake line has an intake bellows section, which is arranged in a vertical direction; the sampling pipeline is provided with a sampling corrugated pipe section, and the sampling corrugated pipe section is arranged along the vertical direction so that the air inlet pipeline and the sampling pipeline are adaptive to the up-and-down floating of the sampling cylinder.
In this embodiment, the intake valve 17, the sampling valve 18, and the return valve 19 are all manual valves. In other embodiments, the intake, sample, and return valves may be solenoid valves.
Before sampling, the sampling valve 18 and the return valve 19 are in a closed state, the air inlet valve 17 is in an open state, no sewage 2 exists in the sampling cylinder 11, and the check valve 13 is in a closed state under the action of high-pressure gas; during sampling, the air inlet valve 17 is closed, the sampling valve 18 is opened, and the return valve 19 is kept in a closed state, at the moment, the acting force of high-pressure gas is lost by the check valve 13, the check valve 13 is in an open state, and the sewage 2 in the sewage pool 1 enters the sampling cylinder 11; after a set amount of sewage 2 is taken from the sampling cylinder 11, the air inlet valve 17 is opened again, and under the action of high-pressure gas, the sewage 2 in the sampling cylinder 11 is discharged to a sampling dish below the outlet end of the sampling pipeline 15 through the sampling pipeline 15, and in the process, the check valve 13 is in a closed state.
The effluent water sump sampling system in the embodiment realizes totally-enclosed sampling, and ensures that operating personnel can not contact high-content H in the effluent water sump 12S gas, overcome H2Risk of S poisoning.
After sampling, the sampling valve 18 is closed, and the return valve 19 is opened, at this time, under the action of the high-pressure gas, the residual sewage 2 in the sampling pipeline 15 and the sampling cylinder 11 is discharged into the sewage tank 1 again through the return pipeline 20, so as to ensure the drying and cleaning of the sampling pipeline 15 and avoid influencing the next sampling.
The utility model discloses effluent water sump sampling system's embodiment 2:
in embodiment 1, the intake valve 17, the sampling valve 18 and the return valve 19 are all manual valves and are all outside the enclosed space to control the pipelines. In this embodiment, as shown in fig. 2, the intake valve 17, the sampling valve 18, and the return valve 19 are all solenoid valves and are all located inside the closed space to control the pipelines.
The utility model discloses effluent water sump sampling system's embodiment 3:
in embodiment 1, a return line 20 is connected between the sampling valve 18 and the sampling cylinder 11 on the sampling line 15, an outlet end of the return line 20 is located in the sealed space and extends into the sewage 2, a return valve 19 is arranged on the return line 20, after sampling is completed, the sampling valve 18 is closed, and the return valve 19 is opened, at this time, under the action of the high-pressure gas, the residual sewage 2 in the sampling line 15 and the sampling cylinder 11 is discharged into the sewage tank 1 again through the return line 20, so as to ensure the drying and cleaning of the sampling line 15, and avoid affecting the next sampling. In this embodiment, as shown in fig. 3, a backflow pipeline and a backflow valve are not provided, so that in order to avoid the influence of residual sewage in the sampling pipeline and the sampling cylinder on the next sampling, the residual sewage is discharged from the outlet end of the sampling pipeline under the action of high-pressure gas and is collected by a collection barrel.
In other embodiments, no sampling valve may be provided on the sampling line.
The utility model discloses effluent water sump sampling system's embodiment 4:
in embodiment 1, a base 9 is arranged at the bottom of the wastewater tank 1, a positioning rod 10 is fixedly arranged on the base 9, the positioning rod 10 is arranged in the vertical direction, and a sampling cylinder 11 and a buoy 12 are sleeved on the positioning rod 10, so that the sampling cylinder 11 and the buoy 12 can axially slide on the positioning rod 10, but cannot move in the radial direction of the positioning rod 10 by a large distance. In this embodiment, set up the locating lever in the outside of flotation pontoon and extend along vertical direction, the locating lever has a plurality ofly along the circumference interval arrangement of flotation pontoon, and a plurality of locating levers are used for limiting on the flotation pontoon and sampling tube the horizontal direction.
The utility model discloses effluent water sump sampling system's embodiment 5:
in embodiment 1, the sampling cylinder 11 is an annular cylinder, the buoy 12 is an annular buoy, the buoy 12 is fixedly disposed at the outer side of the sampling cylinder 11, and the sampling cylinder 11 is sleeved on the positioning rod 10, so that the sampling cylinder 11 floats up and down along with the liquid level of the sewage 2. In this embodiment, on the basis that the sampling cylinder is an annular cylinder and the buoy is an annular buoy, the buoy is fixedly arranged at the inner side of the sampling cylinder, and the buoy is sleeved on the positioning rod so as to enable the sampling cylinder to float up and down along with the liquid level of the sewage.
In other embodiments, the buoy is not required to be arranged under the condition that the buoyancy of the sampling cylinder is large enough, and the sampling cylinder floats up and down along with the liquid level of the sewage by utilizing the buoyancy of the sampling cylinder.
The utility model discloses effluent water sump sampling system's embodiment 6:
in embodiment 1, the sampling cylinder 11 is an annular cylinder, the buoy 12 is an annular buoy, the buoy 12 is fixedly disposed at the outer side of the sampling cylinder 11, and the sampling cylinder 11 is sleeved on the positioning rod 10, so that the sampling cylinder 11 floats up and down along with the liquid level of the sewage 2. In this embodiment, on the basis that the sampling cylinder is an annular cylinder, the buoy is a cylindrical cylinder arranged at intervals along the circumferential direction of the sampling cylinder, so that the sampling cylinder floats up and down along with the liquid level of the sewage.
The utility model discloses effluent water sump sampling device's embodiment, effluent water sump sampling device in this embodiment and any in embodiment 1 to 6 of above-mentioned effluent water sump sampling system effluent water sump sampling device's structure is the same, no longer gives unnecessary details here.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Effluent water sump sampling device, its characterized in that includes:
the sampling cylinder is used for being placed in sewage of the sewage pool;
the check valve is arranged on the sampling cylinder, and sewage in the sewage tank enters the sampling cylinder when the check valve is opened;
the gas source is connected with the sampling cylinder through a gas inlet pipeline and is used for pressing out sewage entering the sampling cylinder;
one end of the sampling pipeline is connected with the sampling cylinder, the other end of the sampling pipeline is arranged outside the closed space, and sewage squeezed out of the sampling cylinder flows out of the closed space through the sampling pipeline;
and the air inlet valve is arranged on the air source or the air inlet pipeline so as to control the on-off of the air inlet pipeline.
2. The cesspool sampling device of claim 1, wherein the sampling pipeline is provided with a sampling valve to control the on-off of the sampling pipeline; and a backflow pipeline is connected between the sampling valve and the sampling cylinder on the sampling pipeline, the outlet end of the backflow pipeline is used for being arranged in the closed space, and the backflow pipeline is provided with a backflow valve to control the on-off of the backflow pipeline.
3. The cesspool sampling device of claim 1 or 2, wherein the sampling cylinder is an annular pontoon, and the sampling cylinder is adapted to fit over a positioning rod in the cesspool to slide vertically on the positioning rod.
4. The cesspool sampling apparatus of claim 1 or 2, wherein the sampling barrel is fixedly provided with a buoy.
5. The effluent water sump sampling device of claim 4, wherein the sampling cylinder is an annular cylinder, the float is an annular float, the annular float is fixedly arranged at the outer side or the inner side of the annular cylinder, and the annular cylinder or the annular float is used for being sleeved on the positioning rod in the effluent water sump so as to slide on the positioning rod in the vertical direction.
6. The sewage pool sampling system comprises a sewage pool, a surrounding plate, a gas collecting hood and a sewage pool sampling device, wherein the sewage pool, the surrounding plate and the gas collecting hood form a closed space;
characterized in that, effluent water sump sampling device includes:
the sampling cylinder is placed in sewage of the sewage pool;
the check valve is arranged on the sampling cylinder, and sewage in the sewage tank enters the sampling cylinder when the check valve is opened;
the gas source is connected with the sampling cylinder through a gas inlet pipeline and is used for pressing out sewage entering the sampling cylinder;
one end of the sampling pipeline is connected with the sampling cylinder, the other end of the sampling pipeline is arranged outside the closed space, and sewage squeezed out of the sampling cylinder flows out of the closed space through the sampling pipeline;
and the air inlet valve is arranged on the air source or the air inlet pipeline and is positioned outside the closed space so as to control the on-off of the air inlet pipeline.
7. The cesspool sampling system of claim 6, wherein the sampling pipeline is provided with a sampling valve to control the on-off of the sampling pipeline; and a backflow pipeline is connected between the sampling valve and the sampling cylinder on the sampling pipeline, the outlet end of the backflow pipeline is used for being arranged in the closed space, and the backflow pipeline is provided with a backflow valve to control the on-off of the backflow pipeline.
8. The cesspool sampling system of claim 6 or 7, wherein the sampling cylinder is an annular buoy, a positioning rod is arranged in the cesspool, the positioning rod is arranged along a vertical direction, and the sampling cylinder is sleeved on the positioning rod so as to slide on the positioning rod along the vertical direction.
9. The cesspool sampling system of claim 6 or 7, wherein a float is fixed to the sampling barrel.
10. The cesspool sampling system of claim 9, wherein a positioning rod is disposed in the cesspool, the positioning rod being arranged in a vertical direction; the sampling cylinder is an annular cylinder, the buoy is an annular buoy, the annular buoy is fixedly arranged on the outer side or the inner side of the annular cylinder, and the annular cylinder or the annular buoy is sleeved on the positioning rod to slide along the vertical direction on the positioning rod.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296609A (en) * | 2023-03-02 | 2023-06-23 | 善水(南通)工业技术有限公司 | Unattended sewage monitoring system and sampling device for monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296609A (en) * | 2023-03-02 | 2023-06-23 | 善水(南通)工业技术有限公司 | Unattended sewage monitoring system and sampling device for monitoring |
| CN116296609B (en) * | 2023-03-02 | 2023-10-03 | 善水(南通)工业技术有限公司 | Unattended sewage monitoring system and sampling device for monitoring |
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