CN2153794Y

CN2153794Y - Water scrubbing gas sampling device

Info

Publication number: CN2153794Y
Application number: CN 93204143
Authority: CN
Inventors: 温平; 张颖智
Original assignee: TANGSHAN ZHINENG ELECTRONICS CO Ltd
Current assignee: TANGSHAN ZHINENG ELECTRONICS CO Ltd
Priority date: 1993-03-01
Filing date: 1993-03-01
Publication date: 1994-01-19
Anticipated expiration: 2003-03-01

Abstract

The utility model belongs to sampling equipment which uses the wet method of fluid spraying generating a liquid film to filter dust. The sampling equipment which uses the wet method of fluid spraying generating a liquid film to filter dust is a device which is especially suitable for carrying out gas sampling in cement production. The sampling equipment which uses the wet method of fluid spraying generating a liquid film to filter dust depends on technical measures of increasing washing water flow quantity, adjusting and controlling the extended length of a water spray head, ensuring the coaxial positioning performance of a water spray head and a washing pipe, installing temperature control and heating devices inside a sampling box, etc. The sampling equipment which uses the wet method of fluid spraying generating a liquid film to filter dust not only can continuously work to collect sample gas in a long time in the dust environment of 1100DEG. C high temperature and, 50 grams/Nm< 3 >, but also has the advantages of simple structure, convenient installation and operation, convenient maintenance, etc.

Description

Water scrubbing gas sampling device

The utility model belongs to use liquid and sprays the equipment that generation film liquid carries out dust in the wet separation gas, is a kind of high rinsing type gas sampling assembly of dust content that is particularly suitable for.

At present and the similar gas producing device of the utility model, though it is roughly close on the one-piece construction, but because the washing pipe of its sampling head is elongated, the fountain head polarization of sluicing pipe end is relatively poor in the course of the work, and fountain head is difficult to determine from the position that sampling head stretches out, exist in actual applications at working environment and easily stop up owing to the higher sampling head of dust content, must carry out dedusting every 2-3 hour and clean, cause gas production sampling work can not carry out continuously and deficiency such as fitting operation inconvenience.

The purpose of this utility model is from increasing the sluicing pipe flow, improving relative sluicing pipe polarization of fountain head and controllable adjustable fountain head extension elongation and set up many-side such as well heater and improve the serviceability of rinsing type gas sampling assembly high dust atmosphere in sampling box, to overcome the existing in prior technology deficiency.

One-piece construction of the present utility model is:

The rinsing type gas sampling assembly comprises sampling head and is installed in the interior nozzle of sampling cabinet, moisture trap, moisture separator, filtrator, surge tank and corresponding connecting tube, measuring instrument, valve, it is characterized in that sampling head 2 is by washing pipe 4, get tracheae 3, isolated tube 17 and outer tube 18 from the lining outwards successively coaxial package constitute, front end assembling fountain head 1 at washing pipe, the hole for water spraying 29,30 of uniform effective quantity on procephalic pipe sidewall of water spray and pipe end wall, the washer 31 at the outside wall surface of fountain head pipe end and fountain head top has the certain clearance amount;

The water supply line 7 that is equipped with flowmeter 6, operation valve in the water inlet end 5 of washing pipe and the sampling box is communicated with; The tracheae of getting of sampling head is communicated with nozzle by air hatch joint 24, pipeline, and the

tube chamber

19,20 of sampling head is communicated with drainage pipeline 9,10 by comprehensive web member 21,

warter connection

22,23 respectively; Attaching flowmeter 11 and operation valve in water supply line 9; Sampling head at a certain angle α stretch in the kiln tail smoke-box or primary heater gas exhaust duct 28 in;

In sampling box, nozzle 8 is connected between water supply line 7 and the moisture trap 13, nozzle is divided into and sprays into and penetrate two parts, by the valve member 33 coaxial integral body that are assembled into, it sprays into part and by connecting tube 34 ingress pipe 36 and shower nozzle 35 is coaxial docking, injection part is divided into jet pipe 38, and jet pipe port and shower nozzle port are at a distance of effective gap value;

The gap is positioned at the tube chamber place of valve member, valve member is by pipeline and get tracheae UNICOM, the jet pipe outlet of nozzle, ingress pipe port are communicated with moisture trap 13, water supply line 7 respectively, moisture trap adopts with float tube 40, valve 41 is the tubular structure of main member, its air water inlet 42, gas outlet 43, discharge opening 44 are communicated with jet pipe, moisture separator 14 and the drainage pipeline 10 of nozzle by pipeline respectively

Device twines tinsel, sheet braid 45 at the outer wall of inner tube at position, moisture separator shell axis, offers air intake opening 46, gas outlet 48 and dewatering outlet 47 on the moisture separator shell wall, is communicated with moisture trap 13, filtrator 12 and surge tank 16 by pipeline respectively;

Pipe 52 vertically inserts in the cylindrical case in two of surge tank, two

outer tube ports

53,54 are communicated with the dewatering outlet 47,51 of moisture separator and filtrator respectively by pipeline, and the surge tank shell is offered bleed outlet 55, water inlet 56 and is connected with drainage pipeline 10 water supply lines 9 respectively;

Axial location is provided with column jecket shape filter core 49 in filtrator 12 housings, the wireway that connects moisture separator gas outlet 48, stretch in the filter core from the air intake opening 50 of filtrator, the piping erection gas flow meter 15 that is connected with gas outlet 51, on the sluicing pipe at rear portion, sampling head end connector 25 position, be carved with markings 26, and on this section tube wall, set up special-purpose scale 27.

The specific structural features of each main member is respectively in sampling head and the sampling box:

The angle α of sampling head and smoke-box gas wall is 60-80, uniform at least three back-up blocks 32 of the anterior periphery wall of sampling head sluicing pipe and pipe 3 coaxial packages, getting tracheal diameter is φ 14-φ 17, the about 3-4mm of length that fountain head 1 stretches out from getting tracheae 3 ends, the fountain head external diameter is φ 12-φ 14, hole for water spraying aperture on its anterior sidewall and the pipe end wall is φ 1.1-φ 1.5, and hole count is respectively 3-5,2, and the gap value of the outside wall surface of fountain head and top washer 31 is 4-6mm.

Cross section, the anterior sidewall hole for water spraying exit of the fountain head of sampling head is taper, cone angle beta is 100 °-140 °, the ingress pipe tube chamber introduction segment internal perisporium of nozzle 8 is offered three spiral grooves 37 vertically, swirl vane 39 is arranged in ingress pipe and shower nozzle 35 tube chambers along axis, and the gap value of shower nozzle port and jet pipe port is 1.5-2mm.

The cylindric float 40 of moisture trap is hollow nylon products, high about 900-140mm, and internal diameter is 90-100mm, weight is 100-140g.

Fill up the braid made from stainless steel wire sheet material between the interior pipe of moisture separator 14 and the outer casing inner wall, the surge tank height is 450-550mm.

Respectively connecting caliber in the gas circuit is φ 8-φ 12, regulates also in the casing that LM335 temperature controller and air heating pipe being set.

Accompanying drawing of the present utility model has:

Fig. 1 is the one-piece construction synoptic diagram of gas sampling assembly.

Fig. 2 is the structure diagram of sampling head.

Fig. 3 is the scheme of erection of sampling head.

Fig. 4 is the fountain head structure diagram of sampling head.

Fig. 5 is the structure diagram of nozzle.

Fig. 6 is the structural drawing of moisture trap.

Fig. 7 is the moisture separator structure diagram.

Fig. 8 is the structure of filter sketch.

Fig. 9 is the structure diagram of surge tank.

Accompanying drawing has provided embodiment of the present utility model, further specifies as follows in conjunction with the accompanying drawings:

Real arrow is represented water (flow) direction among Fig. 1, empty arrow is represented gas flow, during operation, chilled water flows in sampling head outer tube 18, walk around isolated tube 17 and flow back to the sampling cabinet to reach the cooling purpose, cooling effect can change its flow by control valve, and understands cooling back temperature by thermometer, cooling water flow meter 11 also is set in the pipeline

Washings are flowed through behind the flowmeter 6, enter the sampling head sluicing pipe, each hole for water spraying ejection from its front end fountain head end wall and anterior sidewall, under the acting in conjunction of washer (gap value is 4.5mm), form moisture film and wrap the sampling head front end, under the current swabbing action of nozzle, entered nozzle by the pure sample air of water coating remove dust by getting tracheae (getting tracheal diameter is φ 15.5), enter the float-type moisture trap together with the jet pipe outlet of supplying water from nozzle.Sampling head as shown in Figure 2.Vapour, water enter in the separation vessel cylindrical shell, cyclone separator arrangement as shown in Figure 6, wherein the effect of float is that float rises when a certain amount of when the water that flows into increases to, valve open, begin to discharge water from the dewatering outlet, when releasing when buoyancy of water is conducted oneself with dignity less than valve, the float that valve is lowered by again cuts out, the salable again water drain valve of remaining water doorway makes that gas is unlikely to be leaked from valve port.

The moisture separator structure as shown in Figure 7, its structure as described above, after the sample air from moisture trap enters moisture separator, because the huge metal surface of stainless steel wire sheet makes sample air by cooling and the formed moisture content of dewfall is discharged from the dewatering outlet.

Fig. 8 is the structure of filter sketch, is conventional utensil, and the contained after filtering dust particle of gas is by further filtering, and sample air forms for the sample air of analyzing usefulness from gas outlet output, and the globule in the filtrator is exported from discharge opening.

The surge tank structure highly is 520mm as shown in Figure 9, and its effect is: during operation, water is filled surge tank by valve from water supply line, when the gaseous tension of output rise or since the load inlet pressure when higher gas can't export.Gas is just emitted with the form of bubble from bleed outlet when pressure surpasses the height of surge tank middle water level, owing to constantly replenish the surge tank middle water level, make it the pressure of the stable sample air that just can make the moisture separator of flowing through, filtrator and the water colunm height of surge tank water level and be consistent, and be stabilized.As shown in Figure 2, when need are regulated the extension elongation of fountain head, unclamp clamp nut, special-purpose scale 27 1 ends are placed sampling head pipe adapter place, twitch washing pipe make on the pipe markings on the chi+get final product between the 3-3.5 scale, this is just corresponding represents that the length that the fountain head of sampling head end stretches out is 3-4mm.

Because temperature controller and air heating pipe have been installed in sampling box, this sampling apparatus can be under temperature conditions more than-25 ℃, and keeping operating ambient temperature is 0 ℃ of-40 ℃ of operate as normal.

The kiln tail smoke-box wall of sampling head and manufacture of cement rotary kiln or primary heater gas exhaust duct wall angle α are 75 °.

The obtained technological progress of the utility model is:

This Water scrubbing gas sampling device is because from the flow that has strengthened washings and the annex that the extension elongation of regulating control sampling head end fountain head is set, and to make fountain head, sluicing pipe and get the tracheae coaxial positioning and select surge tank length with 4 back-up blocks be that the many-side such as 520mm has been carried out rational modification, make the water coating filter dirt successful of the sampling head formation of this device, can be at 50 gram/Nm³The dust degree, the long-time continuous operation need only check once every day in 1100 ℃ of hot environments.

, fitting operation simple in structure owing to it conveniently has comparatively widely range of application in addition.

Claims

1, the rinsing type gas sampling assembly comprises sampling head and is installed in the interior nozzle of sampling cabinet, moisture trap, moisture separator, filtrator, surge tank and corresponding connecting tube, measuring instrument, valve, it is characterized in that sampling head 2 is by washing pipe 4, get tracheae 3, isolated tube 17 and outer tube 18 from the lining outwards successively coaxial package constitute, front end assembling fountain head 1 at washing pipe, the hole for water spraying 29,30 of uniform effective quantity on procephalic pipe sidewall of water spray and pipe end wall, the washer 31 at the outside wall surface of fountain head pipe end and fountain head top has the certain clearance amount;

The water supply line 7 that is equipped with flowmeter 6, operation valve in the water inlet end 5 of washing pipe and the sampling box is communicated with; The tracheae of getting of sampling head is communicated with nozzle by air hatch joint 24, pipeline, and the tube chamber 19,20 of sampling head is communicated with drainage pipeline 9,10 by comprehensive web member 21, warter connection 22,23 respectively; Attaching flowmeter 11 and operation valve in water supply line 9; Sampling head at a certain angle α stretch in the kiln tail smoke-box or primary heater gas exhaust duct 28 in;

The gap is positioned at the tube chamber place of valve member, valve member is by pipeline and get tracheae UNICOM, the jet pipe outlet of nozzle, ingress pipe port are communicated with moisture trap 13, water supply line 7 respectively, moisture trap adopts with float tube 40, valve 41 is the tubular structure of main member, and its air water inlet 42, gas outlet 43, discharge opening 44 are communicated with jet pipe, moisture separator 14 and the drainage pipeline 10 of nozzle by pipeline respectively;

Pipe 52 vertically inserts in the cylindrical case in two of surge tank, two outer tube ports 53,54 are communicated with the dewatering outlet 47,51 of moisture separator and filtrator respectively by pipeline, and the surge tank shell is offered bleed outlet 55, water inlet 56 and is connected with drainage pipeline 10 water supply lines 9 respectively;

2, gas sampling assembly according to claim 1, the angle α that it is characterized in that sampling head and smoke-box gas wall is 60 °-80 °, uniform at least three back-up blocks 32 of the anterior periphery wall of sampling head sluicing pipe and pipe 3 coaxial packages, getting tracheal diameter is φ 14-φ 17, the about 3-4mm of length that fountain head 1 stretches out from getting tracheae 3 ends, the fountain head external diameter is φ 12-φ 14, hole for water spraying aperture on its anterior sidewall and the pipe end wall is φ 1.1-φ 1.5, hole count is respectively 3-5,2, and the gap value of the outside wall surface of fountain head and top washer 31 is 4-6mm.

3, sampling apparatus according to claim 1 and 2, the cross section, the anterior sidewall hole for water spraying exit of fountain head that it is characterized in that sampling head is taper, cone angle beta is 100 °-140 °, the ingress pipe tube chamber introduction segment internal perisporium of nozzle 8 is offered three spiral grooves 37 vertically, swirl vane 39 is arranged in ingress pipe and shower nozzle 35 tube chambers along axis, and the gap value of shower nozzle port and jet pipe port is 1.5-2mm.

4, sampling apparatus according to claim 1 and 2 is characterized in that the cylindric float 40 of moisture trap is hollow nylon products, high about 900-140mm, and internal diameter is 90-100mm, weight is 100-140g.

5, sampling apparatus according to claim 1 and 2 is characterized in that filling up the braid made from stainless steel wire sheet material between the interior pipe of moisture separator and the outer casing inner wall, and the surge tank height is 450-550mm.

6, sampling apparatus according to claim 1 and 2, it is characterized in that respectively connecting in the gas circuit caliber is φ 8-φ 12, regulates also in the casing that LM335 temperature controller and air heating pipe being set.