Device for sampling liquid media from pipeline


G01N1/20 - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (separating components of materials in general B01D, B01J, B03, B07; apparatus fully provided for in a single other subclass, see the relevant subclass, e.g. B01L; measuring or testing processes other than immunoassay, involving enzymes or micro-organisms C12M, C12Q; investigation of foundation soil in situE02D0001000000; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N0011000000; sensing humidity changes for compensating measurements of other variables or for compensating readings of instruments for variations in humidity, seeG01D; or the relevant subclass for the variable measuredtesting or determining the properties of structures G01M; measuring or investigating electric or magnetic properties of materials G01R; systems in general for determining distance, velocity or presence by use of propagation effects, e.g. Doppler effect, propagation time, of reflected or reradiated radio waves, analogous arrangements using other waves G01S; determining sensitivity, graininess, or density of photographic materials G03C0005020000; testing component parts of nuclear reactors G21C0017000000)
G01N1/10 - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (separating components of materials in general B01D, B01J, B03, B07; apparatus fully provided for in a single other subclass, see the relevant subclass, e.g. B01L; measuring or testing processes other than immunoassay, involving enzymes or micro-organisms C12M, C12Q; investigation of foundation soil in situE02D0001000000; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N0011000000; sensing humidity changes for compensating measurements of other variables or for compensating readings of instruments for variations in humidity, seeG01D; or the relevant subclass for the variable measuredtesting or determining the properties of structures G01M; measuring or investigating electric or magnetic properties of materials G01R; systems in general for determining distance, velocity or presence by use of propagation effects, e.g. Doppler effect, propagation time, of reflected or reradiated radio waves, analogous arrangements using other waves G01S; determining sensitivity, graininess, or density of photographic materials G03C0005020000; testing component parts of nuclear reactors G21C0017000000)

 

The invention relates to sampling, moving through the pipeline liquids, and can be used in any industry to control physical, chemical, and other properties of the fluids that require the selection of representative samples. Device for sampling liquid media from pipeline includes a housing, a hollow shaft with a sampling hole, mounted on the shaft of the impeller, a shut-off device and is made in the case of the channels to drain the sample and the liquid in the pipeline. The device is additionally equipped mounted in the hollow shaft and connected to the mounting rail with the propeller inner shaft. The device has mounted on the inner shaft of the mixing augers large and small diameter, and provided with a device for dividing the sample and mounted on the inner shaft clutch control shut-off device. The device has high performance, allows to obtain a representative sample and simple to operate. 1 C.p. f-crystals, 4 Il.

The invention relates to a device for the sampling of liquids moving through the pipeline, and can be used in industry to control physical, chemical and other liquid media from pipeline (SU 970111 And, CL G 01 N 1/10, published. 30.10.1982), comprising a housing, a hollow shaft with a sampling hole, mounted on the shaft of the impeller, a shut-off device and is made in the case of the channels to drain the sample and the liquid in the pipeline. The described device allows the sampling of a fluid in a particular time and avoid stagnation in the hollow shaft.

The disadvantage of this device is a large amount of samples due to the inability of the reduction, and the lack of mixing of the sample, which significantly reduces its representativeness. Simultaneously, a small number performed by a device of operations reduces the performance of sampling.

The present invention is to provide continuous sampling of fluid from the controlled party with simultaneous mixing and reducing.

The technical result of the invention is a high representativeness of the sample, ease of operation and increased productivity sampling.

This technical result is achieved by the fact that the proposed device for sampling liquid media from a pipeline, comprising a housing, a hollow shaft with a sampling hole, mounted on the shaft of the wire, additionally equipped mounted in the hollow shaft and connected to the mounting rail with the inner shaft impeller mounted on the inner shaft of the mixing augers large and small diameter, and provided with a device for dividing the sample and mounted on the inner shaft clutch control shut-off device.

Helix screw of larger diameter coincides with the helical line of the impeller, and the helix augers small diameter does not coincide with a spiral line of the impeller, which creates a small counter and provides intensive mixing of the liquid and, consequently, increases the representativeness of the sample.

Improving the performance of the sampling is carried out by performing device operations of mixing, cutting and sampling. The reduction is carried out by the device dividing the samples made in the form of a divergent channel, one of them drops of the fluid back into the pipeline, and the second selects the final volume of the sample.

In Fig. 1 shows a General top view of the device for sampling liquid media from the pipeline in the position of the sample; Fig.2 shows a view of a-a rotated 90ocounterclockwise in Fig.1; Fig.3 of the in the pipeline; in Fig.4 B shows the view, reduced in scale, and view, rotated 90ocounterclockwise in Fig.3.

The device consists of a housing (1), which is part of the pipeline, the hollow shaft (2), the inner shaft (3), the mounting rail (4) with fasteners (5), mixing screws (6), the impeller (7), bearing (8) and (9) providing for the rotation of the impeller and the inner shaft, sealing elements (10), the cutting device (11), channel (12) of the liquid in the pipe with nozzle (13) with non-return valve, nozzle (14) with non-return valve for single-threaded channel (15) of the outlet of the sample channel (16) discharge of a portion of the sample back into the pipeline, channel (17) removal of samples for analysis, clutch (18) control shut-off device.

Device for sampling liquid media from pipeline works as follows.

The fluid flow with a certain flow moves through the pipeline, in which is mounted the body of the sampler (1), representing the knee. The impeller (7), mounted on the hollow stationary shaft (2) rotates under the action of fluid flow. By means of the fastening rail (4), which is connected rigidly with the impeller (7) fasteners (5), the torque is transmitted to the inner shaft (3), indoor shaft (3) - bearings (9). The liquid pre-perenesena through design features of the impeller (7) and the mounting rail (4), enters the cavity of the shaft (2), where the group's expense screws (6) finally stirred, getting a homogeneous composition, and is fed to the cutting device (11).

Group a mixing screw (6) consists of augers large and small diameters. Screws with a larger diameter have a spiral line that is coincident with the spiral line of the impeller (7); (left - left, right - right), which provides mixing, facilitating the flow of fluid in the hollow shaft (2) and prevents stagnation. Augers small diameter have a helix that does not coincide with a spiral line of the impeller (7): (left - to-right, right - to-left), which promotes the creation of small counter that provides intensive mixing of the fluid in the cavity of the shaft (2).

The configuration of the cutting device (11), which is a periodically rotating ring reduces the hydraulic impact on the controlled fluid and sends it to the channel (15) diversion sample (Fig.1). In the sample falls in a separating device, which represents a divergent channel. The diameters of the channel (17) removal of prosophobia to prevent hydraulic influence on the controlled fluid. The part of the sample, which is given by channel (17) is used for analysis, with additional mixing and separation is not required, since these operations are fully does the proposed sampler. Another part of the sample is not required for further analysis, given the channel (16) through the nozzle (14) with a check valve that prevents to channel fluid from the pipeline.

Shut-off device (11) installed on the bearings (9), has sealing elements of the seal (10), which prevents leakage of fluid from the hollow shaft (2). The rear part of the cutting device (11) includes a sleeve (18) mounted on the inner shaft (3).

After obtaining the necessary sample volume for the team clutch (18) instantly releases the fixation of the cutting device (11) and rigidly connects it with a rotating inner shaft (3). After their joint 180oclutch (18) automatically disconnects the inner shaft (3) from the cutting device (11) with instantaneous locking of the latter, resulting in probosutedjo channel (15) is blocked, and fluid begins to flow into the channel (12) of the liquid discharge, merging into the pipeline. The reset is carried out through the nozzle (13) having a check valve, which Paiania fluid in the hollow shaft (2) in position, when the sample is not selected.

The present invention produces a continuous sampling, mixing and splitting of the entire lot of material flowing through the pipeline, does not require additional energy to drive, simple operation. This allows the sampler to obtain representative samples, and high performance sampling.

Claims

1. Device for sampling liquid media from a pipeline, comprising a housing, a hollow shaft with a sampling hole, mounted on the shaft of the impeller, a shut-off device and is made in the case of the channels to drain the sample and the liquid in the pipeline, characterized in that it additionally features mounted in the hollow shaft and connected to the mounting rail with the inner shaft impeller mounted on the inner shaft of the mixing augers large and small diameter, and provided with a device for dividing the sample and mounted on the inner shaft clutch control shut-off device.

2. The device under item 1, characterized in that the helix of the screw of larger diameter coincides with the helical line of the impeller, and a helix of small diameter augers n

 

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FIELD: automatical aids for sampling liquids.

SUBSTANCE: system for sampling and delivering filtrate has filter submerged into tested medium and connected with collecting tank and vacuum pressure source which is connected with top hole of collecting tank by means of pneumatic pipe. System has sample receiving tank connected with collecting tank and control unit which has first output to be connected with vacuum pressure source. Collecting tank has two separated chambers - washing chamber and dispatching chamber. Lower hole of washing chamber has to be lower hole of collecting tank and side hole of dispatching chamber has to be side hole of collecting tank. Floating valve is installed inside washing chamber to shut off lower and top holes. Filter is connected with lower hole of collecting tank through sampling pipe. Side hole of collecting tank is connected with lower hole of tank for receiving samples through sampling pipe. Flow-type sensor and check valve are installed inside transportation pipe. Output of flow-type sensor is connected with input of control unit; second output of control unit is connected with control input of analyzer.

EFFECT: improved precision of measurement of sample ion composition; prolonged service life of filter.

1 cl, 1 dwg

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