CN210665167U - Negative pressure recoil type sampling tank of ammonia nitrogen online analyzer - Google Patents

Abstract

The utility model relates to an ammonia nitrogen on-line analyzer's negative pressure recoil formula sample jar is used in water quality monitoring technology field, and its technical scheme main points are: the automatic sampling device comprises an analyzer cabinet, a connecting seat, a tank body, a water pump and a sampling pipeline, wherein the water pump is positioned on one side of the analysis wardrobe and connected with a sampling water source, the sampling pipeline horizontally extends into the analyzer cabinet, the sampling pipeline is bent downwards and extends for a section, then is bent towards the horizontal direction again and is connected with a drainage pipeline, a control valve is arranged at the joint of the drainage pipeline and the sampling pipeline, the tank body is connected with the connecting seat, a water inlet pipe is connected onto the sampling pipeline, one end of the water inlet pipe is connected with the bottom of the tank body, the joint of the water inlet pipe and the sampling pipeline is lower than the bottom of; the advantages are that: the water pump provides power to pump the sample water sample into the sampling tank to form a relatively stable sampling environment, so that the influence of unstable water environment on sampling is reduced, and the influence on a detection result is reduced.

Description

Negative pressure recoil type sampling tank of ammonia nitrogen online analyzer

Technical Field

The utility model belongs to the technical field of the water quality monitoring technique and specifically relates to a negative pressure recoil formula sample jar of ammonia nitrogen on-line analyzer is related to.

Background

The water quality monitoring is a process for monitoring and measuring the types of pollutants in the water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition. The monitoring range is very wide, and the monitoring range comprises uncontaminated and contaminated natural water (rivers, lakes, seas and underground water), various industrial drainage and the like.

However, when the online water quality analyzer samples a sample water sample, if the sample suction pipe of the analyzer is directly communicated with the sample water sample environment, the sample water sample environment is unstable, for example, the fluctuation of the liquid level of the environmental water body leads to the separation of the pipe orifice of the sample suction pipe from the water body, which can lead to the deviation of the sample amount sucked by the sample suction pipe, and the detection result is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an ammonia nitrogen online analyzer's negative pressure recoil formula sample jar, its advantage is: the water pump provides power to pump the sample water sample into the sampling tank, and the liquid level in the sampling tank reaches a certain height for sampling, so that the influence of unstable water environment on sampling is reduced, and the influence on a detection result is reduced.

The above technical purpose of the present invention can be achieved by the following technical solutions: a negative pressure back flushing type sampling tank of an ammonia nitrogen online analyzer comprises an analyzer cabinet, a connecting seat, a tank body, a water pump and a sampling pipeline, wherein the water pump is electrically connected with a controller of the online analyzer, the water pump is positioned on one side of the analyzer cabinet and is connected with a sampling water source, the sampling pipeline is connected with a water pumping port of the water pump, the sampling pipeline horizontally extends into the analyzer cabinet, one side of the sampling pipeline extending into the analyzer cabinet is vertically bent downwards and extends for a section, then the sampling pipeline is bent towards the horizontal direction again and is connected with a drainage pipeline, a control valve is arranged at the connection position of the drainage pipeline and the sampling pipeline, the connecting seat is arranged on the inner wall of the analyzer cabinet, the tank body is connected with the connecting seat, the sampling pipeline is positioned on the inner side of the analyzer cabinet and is connected with a water inlet pipe on the vertically extending section, one end of the water inlet pipe, which is far away from the sampling pipeline, is connected, the on-line analyzer is characterized in that a sample suction pipe is arranged on the connecting seat, the sample suction pipe extends into the tank body and is connected with an analysis device of the on-line analyzer, a vent pipe is arranged on the connecting seat, and the vent pipe faces to the opening of the tank body.

Through adopting above-mentioned technical scheme, when on-line analysis appearance needs the water sampling, on-line analysis appearance's controller starts the water pump, the water pump is in the sample pipeline with the water sample from the sampling water source pump, because the pressure that the water pump produced makes the water sample get into the inlet tube and get into the jar body of sample jar at last from the sample pipeline, staff starts analytical equipment and carries out the analysis of taking a sample when the water level of the jar body does not cross sample suction pipe lower side mouth of pipe uniform height, thereby provide stable sample environment for the sample suction pipe sample, thereby reduced because the influence of the unstability of sample water to the sample has promoted the reliability of testing data.

The utility model discloses further set up to: the control valve is an electric control valve and is electrically connected with a controller of the on-line analyzer.

By adopting the technical scheme, the controller of the on-line analyzer directly controls the control valve to be opened or closed, so that the condition that the on-line analyzer needs manual operation is reduced, automatic adjustment is realized, and the convenience of the device is improved.

The utility model discloses further set up to: when the online analyzer is used for sampling water quality, the valve of the control valve is at an angle of 45 degrees with the pipeline.

Through adopting above-mentioned technical scheme, set up to 45 degrees angles with the pipeline through the valve with the control valve, can keep rivers to pass through, can form certain negative pressure again, when water pump during operation, the water pump provides pressure and makes rivers get into the jar body, when water pump stop work, the water sample flows back into the sample pipeline and gets into water drainage pipe through the control valve from the sample jar body, only through the intake and the drainage of the on-off control jar body of water pump, thereby the condition that needs the repetitive switch control valve to cause the control valve wearing and tearing has been reduced, the device life has been prolonged, and the practicality has been promoted.

The utility model discloses further set up to: be equipped with the wet return on the connecting seat, wet return one end is towards jar body open end, the one end that the jar body was kept away from to the wet return is worn out and is connected with drainage tube from the connecting seat.

Through adopting above-mentioned technical scheme, through setting up the wet return, when online analysis appearance takes a sample, the water pump lasts work, and it is internal that the sample water sample has jar body bottom to get into jar, when treating that jar body is filled with water appearance, unnecessary water appearance is followed wet return discharge jar body and is got into water drainage pipe to the realization is to jar washing of internal portion. When the online analysis appearance sample, at first by the water pump beginning work, make the water sample wash the internal portion of jar after certain time taking a sample through inhaling the appearance pipe to reduce the possibility that the sample is polluted by the historical sample attached to on the internal lateral wall of jar, promoted the reliability that detects data.

The utility model discloses further set up to: the tank body is internally provided with a liquid level sensor which is electrically connected with a controller of the on-line water quality analyzer.

Through adopting above-mentioned technical scheme, through setting up in the level sensor that online water quality analyzer controller electricity is connected, after the internal water level of jar reached appointed height, the signal that "can take a sample" of level sensor feedback gives the controller, the controller only can control analytical equipment and take a sample to the internal sample of jar through inhaling the appearance pipe after receiving the signal that "can take a sample", reduced because the internal water level of jar sample when low the sample leads to the sample volume of sample to appear the deviation, thereby influence the possibility of testing result, the reliability of device has been promoted.

The utility model discloses further set up to: the sampling pipeline is arranged on one horizontal section of the inner side of the analyzer cabinet, and a Y-shaped filter is arranged on the horizontal section of the sampling pipeline, and a filter screen is arranged at a water inlet of the water pump.

Through adopting above-mentioned technical scheme, reduce large-scale solid impurity through the filter screen and get into the sample pipeline and cause the obstructed possibility, filter the small-size solid impurity in the sample pipeline through the type nature filter, reduce solid impurity and get into the jar internal and block the possibility that the appearance pipe led to the fact the device trouble from the sample pipeline, provide the guarantee for long-term, stable operation of device.

The utility model discloses further set up to: the utility model discloses a sampling tank, including a jar body, a connecting seat, a plurality of jar body mouth of pipe circumference lateral wall, the spout that supplies the fixture block to slide in, the jar body is equipped with a plurality of fixture blocks that extend along jar body mouth of pipe circumference on jar body top mouth of pipe circumference lateral wall, the fixture block is just along the circumference evenly distributed of the jar body, set up the spread groove with jar body mouth of pipe looks adaptation on the connecting seat, just set up a plurality of spouts that supply the fixture block to slide in that extend along the direction of height on the spread groove inside wall, all seted up the draw-in groove on the spout bottom lateral wall.

Through adopting above-mentioned technical scheme, make jar body detachable be connected with the connecting seat, when needing the installation jar body, aim at the spout with the fixture block and push into the spread groove of the connecting seat with the open end of the jar body in, the tank bottom of fixture block and spout is contradicted when jar mouth department of the jar body is contradicted with the spread groove tank bottom, rotate the jar body this moment, thereby make the fixture block slide into the motion of the vertical direction of the restriction jar body of draw-in groove, jar body detachable sets up and is convenient for use the back staff is manual to carry out rinse thoroughly to jar internal side wall, reduced because long-term use causes the moss to adhere to the condition at jar internal side wall and influence sample composition.

The utility model discloses further set up to: and an O-shaped rubber ring is arranged at the top end of the opening of the tank body.

Through adopting above-mentioned technical scheme, through O type rubber circle, when the jar mouth of the jar body contradicts with the tank bottom of spread groove, O type rubber circle receives the extrusion and warp, fills the space of jar body mouth and spread groove tank bottom, realizes sealed effect.

To sum up, the utility model discloses a beneficial technological effect does:

1. the water pump provides power to pump the sample water sample into the sampling tank to form a relatively stable sampling environment, so that the influence of unstable water environment on sampling is reduced, the influence on a detection result is reduced, and the reliability of detection data is improved;

2. through the connection of dismantling of the jar body, the staff carries out manual washing to jar internal side wall after being convenient for use for a long time, has reduced the moss that leads to of long-term use and has attached to the influence of jar internal side wall on the water sample composition, has further promoted the reliability of detected data.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic view of the whole structure of the pipeline in the cabinet according to the embodiment.

Fig. 3 is a schematic cross-sectional structure diagram for embodying the inside of the tank in this embodiment.

Fig. 4 is an exploded view of the liquid level sensor and the connection structure of the tank and the connection seat according to the present embodiment.

Fig. 5 is an enlarged schematic view of the mechanism at a in fig. 4.

In the figure, 1, an analyzer cabinet; 2. a connecting seat; 21. a sample suction pipe; 22. a breather pipe; 23. a water return pipe; 24. a liquid level sensor; 25. a chute; 26. a card slot; 27. connecting grooves; 3. a tank body; 31. a clamping block; 32. an O-shaped rubber ring; 4. a water pump; 41. a filter screen; 5. a sampling pipeline; 51. a control valve; 52. a water inlet pipe; 53. a Y-type filter; 6; a drain line.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): the utility model provides an ammonia nitrogen online analyzer's negative pressure recoil formula sample jar, as shown in figure 2 and figure 3, including analyzer cabinet 1 (as in figure 1), connecting seat 2 with 1 inside wall fixed connection of analyzer cabinet, jar body 3, water pump 4 (as in figure 1) and sample pipeline 5, connecting seat 2 and 1 inside wall fixed connection of analyzer cabinet, jar body 3 can be dismantled with connecting seat 2 and be connected, be equipped with on the connecting seat 2 and wear to be equipped with and inhale appearance pipe 21 and breather pipe 22, inhale appearance pipe 21 one end and stretch into jar body 3 in and extend to jar body 3 bottoms, the other end communicates with online analyzer's analytical equipment. The opening of the vent pipe 22 faces the opening end of the tank body 3, the water pump 4 is arranged on one side of the analyzer cabinet 1 and is communicated with a measured water source, the water pump 4 is communicated with a negative pressure back-flushing type sampling tank of the online analyzer, the sampling pipeline 5 is communicated with a water pumping opening of the water pump 4, one end of the sampling pipeline 5, which horizontally extends into the inner side of the analyzer cabinet 1, is positioned at one end of the inner side of the analyzer cabinet 1, is horizontally extended, then vertically bent downwards and extended, and finally bent towards the horizontal direction again and extended and is connected with the drainage pipeline 6;

as shown in fig. 2, the water inlet pipe 52 is connected with the water discharge pipeline 6 through the control valve 51, the valve of the control valve 51 keeps a 45-degree angle with the pipeline in the working process of the online analyzer, one section of the sampling pipeline 5 extending vertically downwards is connected with the water inlet pipe 52 vertical to the sampling pipeline 5, one end of the water inlet pipe 52 far away from the sampling pipeline 5 is connected with the bottom end of the tank body 3, and the height of the joint of the water inlet pipe 52 and the sampling pipeline 5 is lower than the bottom height of the tank body 3. When water pump 4 during operation, because the valve of control valve 51 is 45 degrees angles with the pipeline, control valve 51 is electric control valve, control valve 51 is connected with online analyzer's controller electricity, make the pressure increase in the pipeline, thereby make the internal pressure of jar 3 negative pressure appear for pipeline pressure, the water sample gets into jar 3 in from inlet tube 52, submerge the mouth of pipe take a sample pipe 21 the take a sample back of water height when the water level, the staff starts analytical equipment, when water pump 4 water pressure reduction in the sample pipeline 5 after stopping work, the water sample in the jar 3 is because the action of gravity flows back to in the sample pipeline 5 and is discharged by the outlet from the inlet tube 52. The analytical equipment samples the relatively stable water environment in the jar body 3 to reduced because the sample volume that the sample water source water instability caused the deviation and influenced the condition of testing result, promoted the reliability of testing data.

As shown in fig. 1 and fig. 2, sampling pipe 5 is located the inside horizontal segment that just is close to the position of penetrating of analysis appearance cabinet 1 and is equipped with Y type filter 53, and the water inlet department of water pump 4 is equipped with the filter screen, and the filter screen has reduced the possibility that great solid impurity got into sampling pipe 5, and Y type filter 53 has reduced the condition that less solid impurity got into jar body 3 inside jam appearance pipe 21 of inhaling, has promoted the device reliability.

As shown in fig. 2 and 3, be equipped with wet return 23 on the connecting seat 2, 23 one end mouth of pipe of wet return stretches into jar body 3 in and be located jar mouth department, 4 continuous during operation of water pump, the sample water sample gets into jar body 3 from the inlet tube 52 mouth of pipe of jar body 3 bottom, after jar body 3 is full of interior sample water sample, unnecessary water sample is discharged and is gone into water drainage pipe 6 from wet return 23, water route through inlet tube 52 and the formation of wet return 23 makes the water sample constantly wash jar body 3, the washing to jar body 3 has been realized, the historical sample who has reduced to remain in jar body 3 pollutes to sample suction pipe 21, the reliability of experimental data has been promoted.

As shown in fig. 4, be equipped with the level sensor 24 of being connected with on-line analyzer's controller electricity on connecting seat 2, level sensor 24 stretches into jar in 3, level sensor 24 sends the signal that "can take a sample" to on-line analyzer's controller when the liquid level in jar body 3 reaches the default, on-line analyzer's controller can only send the sample command to analytical equipment after receiving the signal that "can take a sample", thereby the mouth of pipe of sample pipe 21 is flooded all the time to the water sample liquid level in jar body 3 when having guaranteed that sample pipe 21 absorbs the water sample, reduced because the liquid level is stirred and is leaded to the sample volume change to lead to the possibility that the testing result takes place the deviation, the reliability of testing data has been promoted.

As shown in fig. 4 and 5, a plurality of clamping blocks 31 are arranged on the circumferential outer side wall of the tank opening at the top of the tank body 3, the clamping blocks 31 are uniformly distributed along the circumferential direction of the tank opening, a certain distance is reserved between the clamping blocks 31, a connecting groove 27 matched with the size of the pipe opening is formed in the connecting seat 2, the water return pipe 23, the vent pipe 22, the sample suction pipe 21 and the liquid level sensor 24 are all connected with the bottom of the connecting groove 27, a sliding groove 25 matched with the clamping blocks 31 is formed in the groove opening of the connecting groove 27, a sliding groove 25 is formed in the sliding groove 25, a clamping groove 26 matched with the clamping blocks 31 is formed in the side wall of the bottom of the sliding groove 25, and the clamping grooves;

as shown in fig. 4 and 5, an O-shaped rubber ring 32 is fixedly connected to the opening of the tank 3, when a worker installs the tank 3, the worker first aligns the fixture block 31 on the tank 3 with the chute 25, then extends the opening into the connecting groove 27, presses the tank 3 tightly to make the O-shaped rubber ring 32 abut against the bottom of the connecting groove 27, at this time, the connecting groove 27, the water return pipe 23, the vent pipe 22, the sample suction pipe 21 and the liquid level sensor 24 all extend into the tank 3, the worker rotates the tank 3 to make the fixture block 31 slide into the clamping groove 26 to limit the up-and-down movement of the tank 3 and the connecting seat 2, the water inlet pipe 52 is in threaded connection with the bottom of the tank 3, thereby realizing the detachable connection of the tank 3 and the connecting seat 2, facilitating the worker to detach the sampling tank and clean the sampling tank after long-time use, and reducing the interference of water sampling components caused by moss and other microorganisms attached to the inner wall of, the reliability of the detection data is further improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an ammonia nitrogen on-line analyzer's negative pressure recoil formula sample jar which characterized in that: including analysis appearance cabinet (1), connecting seat (2), jar body (3), water pump (4) and sample pipeline (5), water pump (4) are connected with on-line analysis appearance's controller electricity, water pump (4) are located analysis appearance cabinet (1) one side and are connected with the sample water source, sample pipeline (5) link to each other with the pump water mouth of water pump (4), sample pipeline (5) level stretches into in analysis appearance cabinet (1), sample pipeline (5) stretch into one side vertical buckling downwards in analysis appearance cabinet (1) and extend one section back again to the horizontal direction buckle and be connected with drain line (6), drain line (6) are equipped with control valve (51) with sample pipeline (5) junction, establish on analysis appearance cabinet (1) inner wall connecting seat (2), jar body (3) are connected with connecting seat (2), sample pipeline (5) are located analysis appearance cabinet (1) inboard and are connected with inlet tube (52) on one section of vertical extension The utility model discloses a sampling device, the one end of sample pipeline (5) is kept away from in inlet tube (52) is connected bottom the jar body (3), inlet tube (52) are less than jar body (3) bottom with the junction of sample pipeline (5), be equipped with on connecting seat (2) and inhale appearance pipe (21), inhale appearance pipe (21) and stretch into in jar body (3) and inhale appearance pipe (21) and be connected with the analytical equipment of on-line analysis appearance, be equipped with breather pipe (22) on connecting seat (2), breather pipe (22) are towards the opening part of the jar body (3).

2. The negative pressure recoil sampling tank of the ammonia nitrogen online analyzer according to claim 1, characterized in that: the control valve (51) is an electric control valve, and the control valve (51) is electrically connected with a controller of the online analyzer.

3. The negative pressure recoil type sampling tank of the ammonia nitrogen online analyzer according to claim 2, characterized in that: when the online analyzer is used for sampling water quality, the valve of the control valve (51) forms an angle of 45 degrees with the pipeline.

4. The negative pressure recoil sampling tank of the ammonia nitrogen online analyzer according to claim 3, characterized in that: be equipped with wet return (23) on connecting seat (2), wet return (23) one end is towards jar body (3) open end, wet return (23) are kept away from the one end of jar body (3) and are worn out and be connected with drainage pipe (6) from connecting seat (2).

5. The negative pressure recoil type sampling tank of the ammonia nitrogen online analyzer according to claim 4, characterized in that: a liquid level sensor (24) is arranged in the tank body (3), and the liquid level sensor (24) is electrically connected with a controller of the online water quality analyzer.

6. The negative pressure recoil sampling tank of the ammonia nitrogen online analyzer according to claim 1, characterized in that: the sampling pipeline (5) is positioned on the inner side of the analyzer cabinet (1) and is provided with a Y-shaped filter (53) on one horizontal section, and a filter screen (41) is arranged at a water inlet of the water pump (4).

7. The negative pressure recoil sampling tank of the ammonia nitrogen online analyzer according to claim 6, characterized in that: the utility model discloses a novel clamping groove (26) and its manufacturing method, including jar body (3) mouth of pipe circumference lateral wall, be equipped with a plurality of fixture blocks (31) that extend along jar body (3) mouth of pipe circumference on jar body (3) top mouth of pipe circumference lateral wall, fixture block (31) are just along the circumference evenly distributed of the jar body (3), set up on connecting seat (2) with the spread groove (27) of jar body (3) mouth of pipe looks adaptation, just set up on spread groove (27) inside wall a plurality of confession fixture block (31) that extend along the direction of height and slide in spout (25), all seted up on spout (25) bottom lateral wall draw-in groove (26), it is a plurality of draw-in groove (26) extending direction just is located corresponding draw-in groove (26) with one side and extend along jar body (3) opening circumference.

8. The negative pressure recoil sampling tank of the ammonia nitrogen online analyzer according to claim 7, characterized in that: an O-shaped rubber ring (32) is arranged at the top end of the opening of the tank body (3).

Images