CN205879588U - Be used for coal as fired of thermal power plant buggy sampling device - Google Patents

Abstract

The utility model relates to a be used for coal as fired of thermal power plant buggy sampling device, including the buggy pipeline, the slope of buggy pipeline outer wall is provided with downwards gets sample case, and the picture peg is installed with the department of UNICOM of getting sample case to the buggy pipeline, get in the sample case with buggy pipeline coaxial line to setting up two and half circular tube body relatively, body push rod of outer wall fixed connection of every half circular tube body, push -and -pull body push rod drives half circular tube body business turn over buggy pipeline, getting in the sample case every half circular tube body's upper and lower both ends and setting up one respectively and cover the orificial lid of inserting of the semicircle body, insert the lid and be connected with to insert and cover the push rod, the push -and -pull is inserted and cover the push rod and drive to insert and cover the slip, be provided with the pulverized coal sample export on getting sample case's bottom plate, be provided with sealed lid in the pulverized coal sample export. The utility model discloses a two and half circular tube body are as the sampler, realize the sample process with the push rod push -and -pull, and complete pipeline section of intercepting is as an increment, fine solution the integrality of the increment of getting, convenient to use is reliable.

Description

A kind of for thermal power plant's as-fired coal coal fines sampling apparatus

Technical field

This utility model relates to Thermal Power Enterprises boiler plant field, is specifically related to one and takes for thermal power plant's as-fired coal coal dust Sampling device, is sampled to the pulverized coal channel between boiler being placed in coal pulverizer.

Background technology

According to requirement in standard DL/T942-2005, as-fired coal coal dust should use sampling gun to sample, at present, and thermoelectricity enterprise of China According to standard-required, the actual operation taked is that pipeline is made a call to a collar aperture hole to industry, extracts with single head sampling gun, if wanting by standard Ask and be all drawn into some position, 64, a cross section, then taking a pulverized coal sample at least needs 2 hours.Owing to the time is long, it is difficult to Ensure that the operating condition of standard-required is stable, thus cause the inaccurate of sampling.

Therefore, sampling for coal dust, the Thermal Power Enterprises present situation of China is: during most enterprise's sampling, only from the one of pipeline Taking the several samples on internal diameter straight line in hole, the sample amount taken is few, does not meets standard, and representative poor, actual sampling exists very Large deviation.

Summary of the invention

In order to make up prior art defect, the purpose of this utility model is to provide a kind of for Thermal Power Enterprises as-fired coal coal dust Sampler, meets international standard, novel in structural design, and practicality is good, it is possible to sample the saving time for power plant, provides relatively in time Accurate data, Instructing manufacture.The purpose of this utility model is achieved through the following technical solutions:

A kind of for thermal power plant's as-fired coal coal fines sampling apparatus, including being placed in coal pulverizer to the coal pipe between boiler Road, described pulverized coal channel outer wall is provided with sampling cabinet diagonally downward, and pulverized coal channel is provided with slotting with the connection position of described sampling cabinet Plate；In described sampling cabinet, alignment coaxial with pulverized coal channel is oppositely arranged two semicircle bodys, and the outer wall of each semicircle body is fixed Connecting a body push rod, described body push rod extends outside pulverized coal channel and passes the outer wall of sampling cabinet；Described semi-circular tube The external diameter of body is not more than pulverized coal channel internal diameter, and when plate pull-up, push-and-pull body push rod, body push rod drives two semicircle bodys Turnover coal pipe；In described sampling cabinet, the two ends up and down of each semicircle body are respectively provided with one and cover inserting of the semicircular body mouth of pipe Lid, described slotting lid connection has slotting lid push rod, described slotting lid push rod to extend outside pulverized coal channel and passes the outer wall of sampling cabinet；Push away Draw slotting lid push rod, insert lid push rod and drive slotting lid to slide between lower nozzle on the upper and lower side plate of sampling cabinet and semicircular body；Described sampling It is provided with pulverized coal sample outlet on the base plate of case, the outlet of described pulverized coal sample is provided with sealing lid.

Further, external diameter is pulverized coal channel internal diameter the 9/10 ~ 99/100 of described semicircle body, body tall and big in 30mm。

Further, it is provided with seal washer at the installing hole of described sampling cabinet upper tube body push rod and slotting lid push rod.

Further, the distance of described pulverized coal sample outlet distance sampling case minimum point is less than the 1/8 of sampling cabinet floor length.

Further, the end of described slotting lid push rod and body push rod connects draw ring.

This utility model has the beneficial effect that:

1) this utility model uses two half-round tubular as the device of sampling, realizes sampling process with push rod push-and-pull, intercepts One complete pipeline section, as an increment, well solves the integrity of taken increment, makes taken as-fired coal coal Powder sample is representative；When using conveniently, reliably, single semicircle body is sampled respectively will not be to coal in sampling process simultaneously Tube cell normally works and interferes.

2) this utility model sampling process is quick, can obtain coal dust increment in time, for Instructing manufacture.

3) this utility model sampling amount is big, can be with quasi-complement because of the representative bad defect of increment amount deficiency.

4) this utility model can reduce workload, reduces dust.

Below in conjunction with the accompanying drawings and this utility model is described in further detail by detailed description of the invention.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is this utility model top view.

Reference: 1. pulverized coal channel；2. sampling cabinet；3. plate；4. semicircle body；5. body push rod；6. draw ring；7. insert Lid；8. connecting plate；9. insert lid push rod；10. pulverized coal sample outlet；11. seal lid.

Detailed description of the invention

As shown in Figure 1-2, a kind of for thermal power plant's as-fired coal coal fines sampling apparatus, including be placed in coal pulverizer to boiler it Between pulverized coal channel 1, described pulverized coal channel outer wall is provided with sampling cabinet 2 diagonally downward, pulverized coal channel 1 and described sampling cabinet 2 Connection position is provided with plate 3；In described sampling cabinet 2, alignment coaxial with pulverized coal channel 1 is oppositely arranged two semicircle bodys 4, each The outer wall of semicircle body 4 is fixing connects a body push rod 5, and described body push rod 5 extends and through taking outside pulverized coal channel 1 The outer wall of sample case 2；The external diameter of described semicircle body 4 is not more than pulverized coal channel 1 internal diameter, when plate 3 pull-up, and push-and-pull body push rod 5, body push rod 5 drives two semicircle bodys 4 to pass in and out pulverized coal channel 1；In described sampling cabinet 2 up and down the two of each semicircle body 4 End be respectively provided with one cover the semicircular body mouth of pipe slotting lid 7, described slotting lid 7 connect have slotting lid push rod 9, described slotting lid push rod 9 to Extend and pass the outer wall of sampling cabinet 2 outside pulverized coal channel 1；Lid push rod 9 is inserted in push-and-pull, inserts lid push rod 9 drive and inserts lid 7 at sampling cabinet Slide between lower nozzle on about 2 side plates and semicircular body；Pulverized coal sample outlet 10 it is provided with on the base plate of described sampling cabinet 2, described Sealing lid 11 it is provided with in pulverized coal sample outlet.

In the present embodiment, connect each via one piece of connecting plate 8 between two slotting lids 7 opposing upper and lower, every piece of connecting plate 8 One slotting lid push rod 9 of upper fixing connection, same slotting lid push rod 9 can drive corresponding two slotting lids up and down to slide together.

The external diameter of semicircle body 4 is preferably the 9/10 ~ 99/100 of pulverized coal channel internal diameter, and body is tall and big in 30mm.

It is provided with seal washer at the installing hole of sampling cabinet 2 upper tube body push rod 5 and slotting lid push rod 9.Pulverized coal sample exports 10 distances The distance of sampling cabinet 2 minimum point (i.e. near the corner of sampling cabinet base plate with side plate handing-over) is less than the 1/ of sampling cabinet floor length 8, because the pouring out close to beneficially coal dust of coal dust outlet and sampling cabinet minimum point.

The end inserting lid push rod 9 and body push rod 5 connects draw ring 6.

In this detailed description of the invention: be tiltedly installed with sampling cabinet 2, pulverized coal channel 1 and sampling cabinet on the sidewall of pulverized coal channel 1 2 connection position intercalations are provided with plate 3, are provided with two semicircle bodys 4 being oppositely arranged, each semicircle body 4 outer wall in sampling cabinet 2 On be installed by welding with body push rod 5, body push rod 5 through sampling cabinet 2 and is provided with draw ring 6 in afterbody；It is provided with in sampling cabinet 2 and puts In the slotting lid 7 of semicircle body upper and lower side, insert lid 7 and be slidably mounted on before and after sampling cabinet on side plate, two plate lids 7 ends of upper and lower End is connected by connecting plate 8, and connecting plate 8 outer face is provided with slotting lid push rod 9, inserts lid push rod 9 through sampling cabinet 2 and in afterbody also Draw ring 6 is installed；

During operation, first plate 3 is upwards evacuated to outside sampling cabinet 2, one of them semicircle body 4 is pushed in pipeline, then will It inserts after lid 7 shifts this semicircle body about 4 onto simultaneously up and down, 7 is drawn back with inserting to cover by semicircle body 4, another semi-circular tube simultaneously After body 4 same operation；Plate 3 is plugged downwards, opens the sealing lid 11 of pulverized coal sample outlet 10, semicircle body 4 is covered 7 mistakes with inserting Opening a bit, coal dust just flows down, and collects coal dust, shut the sealing lid 11 of pulverized coal sample outlet 10 after having collected.

In being embodied as, in whole sampling process, the coal amount and the coal-air ratio that enter coal pulverizer to keep stable.

Installing at repowering, its cost is one-time investment, and total transformation expense is far below the expense buying sampling gun, after installation Being no longer necessary to compressed air purging, operation is relatively and sampling gun is convenient, simply.

Claims (5)

1. for thermal power plant's as-fired coal coal fines sampling apparatus, including being placed in coal pulverizer to the pulverized coal channel between boiler, It is characterized in that: described pulverized coal channel outer wall is provided with the connection position of sampling cabinet, pulverized coal channel and described sampling cabinet diagonally downward Plate is installed；In described sampling cabinet, alignment coaxial with pulverized coal channel is oppositely arranged two semicircle bodys, each semicircle body Outer wall is fixing connects a body push rod, and described body push rod extends outside pulverized coal channel and passes the outer wall of sampling cabinet；Institute The external diameter stating semicircle body is not more than pulverized coal channel internal diameter, and when plate pull-up, push-and-pull body push rod, body push rod drives two Semicircle body turnover pulverized coal channel；In described sampling cabinet, the two ends up and down of each semicircle body are respectively provided with one and cover semicircular body The slotting lid of the mouth of pipe, described slotting lid connection has slotting lid push rod, described slotting lid push rod to extend outside pulverized coal channel and through sampling cabinet Outer wall；Lid push rod is inserted in push-and-pull, inserts lid push rod and drives slotting lid to slide between lower nozzle on the upper and lower side plate of sampling cabinet and semicircular body； It is provided with pulverized coal sample outlet on the base plate of described sampling cabinet, the outlet of described pulverized coal sample is provided with sealing lid.

It is the most according to claim 1 for thermal power plant's as-fired coal coal fines sampling apparatus, it is characterised in that: described semicircle body External diameter is pulverized coal channel internal diameter 9/10 ~ 99/100, body is tall and big in 30mm.

It is the most according to claim 1 for thermal power plant's as-fired coal coal fines sampling apparatus, it is characterised in that: on described sampling cabinet It is provided with seal washer at the installing hole of body push rod and slotting lid push rod.

It is the most according to claim 1 for thermal power plant's as-fired coal coal fines sampling apparatus, it is characterised in that: described pulverized coal sample goes out The distance of mouth distance sampling case minimum point is less than the 1/8 of sampling cabinet floor length.

It is the most according to claim 1 for thermal power plant's as-fired coal coal fines sampling apparatus, it is characterised in that: described slotting lid push rod Draw ring is connected with the end of body push rod.