CN208727690U - A kind of rotor of novel single cyclopentane gas detector - Google Patents

Abstract

The utility model discloses a kind of rotors of novel single cyclopentane gas detector, belong to shredder technical field.It includes rotation axis and roll body, is equipped with axis hole among the roll body, the rotation axis is arranged in axis hole, and the roll surface of the roll body is equipped with wave groove and several moving knife seats, and moving knife seat is axially distributed according to " people " font, is connected with moving knife on moving knife seat.Rotor surface is wave-like, moving knife and the control of stationary knife gap are within the scope of 0.4-0.5mm, moving knife keen edge in use, it is not in the bad phenomenons such as winding, the discharging of shredder is of uniform size, and production is stablized, it fluctuates small, the yield of shredder is improved simultaneously, and production capacity can achieve 900kg/h, improve at least 3 times than single-shaft shredder production capacity.

Description

A kind of rotor of novel single cyclopentane gas detector

Technical field

The utility model belongs to shredder technical field, more specifically to a kind of knife of novel single cyclopentane gas detector Roller.

Background technique

Shredder is exactly a kind of as machine fine crushing, is generally used for handling crude raw material or leftover pieces, make Its size is more tiny.Representative example is made after melting after tearing up the leftover pieces of plastics or rubber as raw material Grain, for remaking plastic bottle, tire or dustbin etc..Shredder is applied to plastics recovery and regenerates industry, is usually used in giving up Product heavy caliber PE plastic pipe bundled is packaged the broken of plastic film, big pile plastic sheet and Head material.

Common customer is torn up using shredder at present, such as Chinese Patent Application No.: 201720657433.3, application Day: on June 7th, 2017, denomination of invention are as follows: a kind of rotor of cyclopentane gas detector, Chinese Patent Application No.: 201720406064.0, the applying date: on April 17th, 2017, denomination of invention are as follows: a kind of knife roller structure of cyclopentane gas detector, China Number of patent application: 201720401979.2, the applying date: on April 16th, 2017, denomination of invention are as follows: a kind of novel shredder rotor, Chinese Patent Application No.: 201610591357.0, the applying date: on July 25th, 2016, a kind of denomination of invention are as follows: cyclopentane gas detector Blade structure, but for plastic film and ton bag and the flexibilities article such as scrap fishing net, this equipment is in process of production Being easy to appear article has part tear fracture and can not be wrapped in above axis, and article is difficult to tear up, if the not sharp winding of blade is existing As more serious, and winding also has a certain impact to axis and motor service life, seriously will lead to axle fracture and motor is burnt Bad, discharge port is easy blocking and discharging size non-uniform phenomenon.Using this single-shaft shredder equipment, can all be increased using client Add a cutter, enters back into single shaft will enter the article that single-shaft shredder is torn up and carry out cutting into bulk with two workers Shredder is torn up, and can reduce wrapping phenomena in this way.It has to after such equipment winding by personnel's knife Piece separates the article being wrapped in above axis, and there are security risks；Furthermore production capacity about 300kg/h, extremely using two equipment Few three employees, can only artificial uniform feeding, large labor intensity.

To solve the above-mentioned problems, through retrieving, Chinese Patent Application No.: 200920262543.5, the applying date: 2009 11 The moon 11, denomination of invention are as follows: a kind of cutter roll structure of shredding machine includes main shaft, multiple cutterheads, and axis hole is equipped among cutterhead, main Axis wears the axis hole, and multiple cutterheads, which are overlapped mutually, to be set on main shaft, further includes having moving knife seat, moving knife, in the vertical of each cutterhead It is respectively symmetrically provided with seat slot to axial ends end, moving knife seat is arranged in the seat slot, and moving knife is connected on moving knife seat and height It is arranged in moving knife seat.In conjunction with the description and the appended drawings of the patent disclosure, it can be seen that distribution of the moving knife seat on rotor is mixed and disorderly Without chapter, although the rotor enhances the frictional force between plastic film, the size for the size that discharges is in 10-15mm, nothing Method meets discharging size in the requirement of 5-8mm, and the use of the rotor is restricted, is unfavorable for being widely popularized.

Summary of the invention

1. to solve the problems, such as

Aiming at the problem that discharging size of existing shredder is unable to satisfy requirement of the discharging size in 5-8mm, this is practical new Type provides a kind of rotor of novel single cyclopentane gas detector, and the discharging of shredder is of uniform size, and production is stablized, and fluctuation is small, simultaneously The yield of shredder is improved, production capacity can achieve 900kg/h, improve at least 3 times than single-shaft shredder production capacity.

The utility model additionally provides a kind of production method of the rotor of novel single cyclopentane gas detector, and the structure of rotor is closed Reason has good wear-resisting property, prolongs the service life.

2. technical solution

To solve the above-mentioned problems, technical solution used by the utility model is as follows:

The rotor of the novel single cyclopentane gas detector of one kind of the utility model, including rotation axis and roll body, among the roll body Equipped with axis hole, the rotation axis is arranged in axis hole, and the roll surface of the roll body is equipped with wave groove and several moving knife seats, moving knife seat It is axially distributed according to " people " font, moving knife is connected on moving knife seat.

In a kind of possible embodiment of the utility model, the moving knife includes cutter hub and is placed in four of cutter hub side Curved blade offers screw hole along the center of cutter hub, and the cutting edge of curved blade exceeds the end face of the screw hole.

In a kind of possible embodiment of the utility model, the material of the moving knife seat is stainless steel material, moving knife seat On offer mounting hole for installing moving knife, moving knife seat tool has a mounting surface, and mounting surface and the moving knife are fitted tightly over one It rises.

In a kind of possible embodiment of the utility model, the rotation axis is in hollow form, is internally provided with charging Pipe is evenly distributed with several discharge holes on feed pipe and rotation axis, perforation pore is equipped on the roll body, by feed pipe into The electrostatic additive entered is dispersed in roll body, and when rotor rotates, electrostatic additive is thrown away by perforation pore.

In a kind of possible embodiment of the utility model, the moving knife seat is by being welded on the bottom of wave groove.

The utility model additionally provides a kind of working method of novel single cyclopentane gas detector, comprising the following specific steps

One, the production of rotor roll body

Step S101, it uses material for Cr12MoV alloy die steel, is poured machine-shaping rotor roll body blank, is cooled to Room temperature stays 0.40~0.50mm of allowance for finish then to rotor roll body blank roughing；

Step S102, it quenches: workpiece in step S101 is put into the box resistance band furnace of 110kw, adjusting heating coefficient is 1.5-1.8min/mm is first heated to 650 ± 10 DEG C, keeps the temperature 6-10min, is again heated to 850 ± 10 DEG C, goes out after keeping the temperature 4-6min Furnace is put into 1050 ± 10 DEG C of salt bath heatings in salt bath furnace, places into salt made from earth containing a comparatively high percentage of sodium chloride and is cooled to 120 ± 10 DEG C of taking-ups；

Step S103, subzero treatment: workpiece after cooling in step S102 is put into cryogenic processor, at -140 DEG C 4-6h is kept the temperature in~-160 DEG C of environment；

Step S104, it is tempered: the workpiece after subzero treatment in above-mentioned steps S103 is put into 110kw air circulation resistance band In furnace, adjusting heating coefficient is 1.5-1.8min/mm, is heated to 500 ± 10 DEG C, keeps the temperature 3-3.5h, comes out of the stove, be cooled to room temperature；

Step S105, grinding: then corase grinding to made allowance 0.08-0.1mm first is refined for the first time, fine grinding is extremely 0.03~0.05mm of made allowance is refined again to made allowance ± 0.002mm；

Step S106, polish: polishing workpiece is to dimensional tolerance in -0.001mm, surface roughness < Ra0.07 μm；

Two, the production of moving knife seat and moving knife

Identical step is made using with rotor roll body；

Three, whole installation

Rotation axis is mounted in roll body, is then fixed moving knife seat by the way of welding, it is dynamic being fixed by bolts Knife.

Fine grinding technology uses machine models for M7363 rotary grinder in the step S105, revolving speed 120r/min； Workpiece is impregnated into 20~30h in 145 DEG C of hot oil after roughly grinding and refine every time.

It tests at a constant temperature to the workpiece size after fine grinding after being refined in the step S105.

It is M7363 rotary grinder that machine models are used in the step S106, installs model 46J's on bistrique Soft grinding wheel, setting machine rotational speed are 100/min, are polished to workpiece.

3. beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) rotor of novel single cyclopentane gas detector of the utility model, rotor surface is wave-like, between moving knife and stationary knife Gap controls within the scope of 0.4-0.5mm, and moving knife keen edge in use is not in the bad phenomenons such as winding, tears up The discharging of machine is of uniform size, and production is stablized, and fluctuation is small, while improving the yield of shredder, and production capacity can achieve 900kg/h, At least 3 times are improved than single-shaft shredder production capacity；

(2) rotor of novel single cyclopentane gas detector of the utility model, moving knife seat is distributed according to herringbone, so that cutter There is a maximum cutting angle, plastic film, ton bag and scrap fishing net etc. under the action of cutting force, can quickly cut off；

(3) rotor of novel single cyclopentane gas detector of the utility model, the material of moving knife seat is stainless steel material, is improved Moving knife seat wearability, substantially without gap, avoids tiny in addition, the mounting surface of moving knife seat and moving knife fit closely together Particle enters mounting surface, influences the normal use of moving knife；

(4) the utility model structure is simple, and design is rationally, easily fabricated.

Detailed description of the invention

The technical solution of the utility model is described in further detail below with reference to drawings and examples, still It should be known that these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the utility model.In addition, Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale It draws.

Fig. 1 is the structural schematic diagram of the rotor of the novel single cyclopentane gas detector of one kind of the utility model；

Fig. 2 is cross-sectional view of the Fig. 1 along line A-A；

Fig. 3 is the moving knife seat of the utility model and the connection schematic diagram of moving knife；

Fig. 4 is the structural schematic diagram of the moving knife of the utility model.

Description of symbols in figure:

11, rotation axis；12, roll body；121, wave groove；13, moving knife seat；131, mounting hole；132, mounting surface；14, it moves Knife；141, cutter hub；142, curved blade；15, feed pipe；16, discharge hole；17 perforation pores.

Specific embodiment

Hereafter to the detailed description of the exemplary embodiment of the utility model with reference to attached drawing, which forms the one of description Part has been shown as example the enforceable exemplary embodiment of the utility model in the figure.Although these exemplary realities Example is applied to be described in sufficient detail so that those skilled in the art can implement the utility model, it is to be understood that it can be realized His embodiment and can various changes can be made to the utility model in the case where not departing from the spirit and scope of the utility model.Hereafter Required the scope of the utility model is not limited to the more detailed description of the embodiments of the present invention, and only The description of the characteristics of in order to be illustrated and not limit to the utility model and feature, to propose to execute the utility model Best mode, and it is sufficient to make those skilled in the art that can implement the utility model.Therefore, the scope of the utility model only by Appended claims limit.

Hereafter the detailed description of the utility model and example embodiment are more fully understood in combination with attached drawing, wherein this reality It is identified with novel element and feature by appended drawing reference.

Embodiment 1

As shown in Figures 1 to 4, the rotor of the novel single cyclopentane gas detector of one kind of the present embodiment, including rotation axis 11 and roller Body 12 is equipped with axis hole among roll body 12, and rotation axis 11 is arranged in axis hole, if the roll surface of roll body 12 be equipped with wave groove 121 and Dry moving knife seat 13, moving knife seat 13 is axially distributed according to " people " font, and moving knife 14 is connected on moving knife seat 13；Moving knife seat 13 passes through It is welded on the bottom of wave groove 121.

In the prior art, the surface of rotor roll body 12 is smooth shape, for plastic film, ton bag and scraps fishing net Etc. flexibilities article, in addition moving knife 14 and fixed small with the frictional force on 12 surface of roll body is led to due to the material of these substances itself Gap between knife is excessive, is easy to cause plastic film, ton bag and scrap fishing net to skid and wrapping phenomena occurs.It is worth saying Bright, for inventor by largely testing and analyzing, the rotor surface of novel single cyclopentane gas detector is wave-like, moving knife 14 and stationary knife gap control within the scope of 0.4-0.5mm, compare Chinese Patent Application No.: 201720010520.X, the applying date: On January 5th, 2017, denomination of invention are as follows: a kind of knife roller structure of shredder, the keen edge in use of moving knife 14 will not Appearance such as winds at the bad phenomenons；And not manually uniform feeding, it can directly be fed with pawl bucket machine, not need more to tear up advance Row cuts into bulk and enters back into shredder, and production capacity can achieve 900kg/h, improves at least 3 times than same money single-shaft shredder production capacity, It discharges of uniform size, the phenomenon that blocking, security risk also reduces on year-on-year basis, and production effect is also synchronous to be improved, and uses operation people Member also only needs the personnel of a bit manipulation pawl bucket machine.

Further, in order to increase the frictional force on rotor surface, at the same make the cutting effect of moving knife 14 reach most preferably, because This, moving knife seat 13 is arranged on roll body 12 according to " people " font, and moving knife seat 13 is by being welded on the bottom of wave groove 121, base In the design, it is found that there is maximum cutting angle, plastic film, ton bag and report according to the moving knife 14 of herringbone distribution Waste fishing net etc. can quickly be cut off under the action of cutting force.

Embodiment 2

The present embodiment and the structure of embodiment 1 are substantially consistent, the difference is that, as shown in figure 4, the shape of moving knife 14 Structure be it is rectangular, including cutter hub 141 and be placed in four curved blades 142 of 141 side of cutter hub, the center along cutter hub 141 opens up There is circular screwhole, the cutting edge of curved blade 142 exceeds the end face of screw hole.

Embodiment 3

The present embodiment and the structure of embodiment 2 are substantially consistent, the difference is that, it is revolved since moving knife seat 13 is in high speed Turn state, and with plastic film, ton bag and scrap fishing net etc. and contact for a long time, moving knife seat 13 wears larger, therefore moving knife The material of seat 13 is stainless steel material, and the mounting hole 131 for installing moving knife 14 is offered on moving knife seat 13, and moving knife seat 13 has One mounting surface 132, mounting surface 132 and moving knife 14 fit closely together, substantially without gap, tiny particle are avoided to enter peace Dress face 132 influences the normal use of moving knife 14.

Embodiment 4

The present embodiment and the structure of embodiment 4 are substantially consistent, the difference is that, rotation axis 11 is in hollow form, in Portion is provided with feed pipe 15, and several discharge holes 16 are evenly distributed on feed pipe 15 and rotation axis 11, and the diameter of discharge hole 16 is 2mm is equipped with perforation pore 17 on roll body 12, and the diameter of perforation pore 17 is 1mm, is added by the electrostatic that feed pipe 15 enters Agent is added to be dispersed in roll body 12, when rotor rotates, feed pipe 15 is not rotated with rotation axis 11, and electrostatic additive is by perforation pore 17 throw away.

It is well known that plastic film, ton bag and scrap fishing net and can generate electrostatic in friction process, when plastic film, On the one hand ton bag and the fragment for scrapping fishing net can reunite under the action of electrostatic, on the other hand can be adhered to rotor table Therefore face throws away electrostatic additive by penetrating through pore 17, by plastic film, ton bag and can scrap fishing net institute with quiet Electricity is eliminated, and that improves shredder tears up efficiency.The micro of some thousandths of or ten thousand/several need to be only added in electrostatic additive therein, The electrostatic in production process can be eliminated, electrostatic additive can be sulfonate or quaternary amine.

Embodiment 5

A kind of working method of novel single cyclopentane gas detector is present embodiments provided, comprising the following specific steps

One, the production of rotor roll body 12

Step S101, it uses material for Cr12MoV alloy die steel, is poured 12 blank of machine-shaping rotor roll body, it is cooling Allowance for finish 0.40mm is stayed then to the 12 blank roughing of rotor roll body to room temperature；

Step S102, it quenches: workpiece in step S101 is put into the box resistance band furnace of 110kw, adjusting heating coefficient is 1.5min/mm is first heated to 650 ± 10 DEG C, keeps the temperature 6min, is again heated to 850 ± 10 DEG C, comes out of the stove after keeping the temperature 4min, is put into salt 1050 ± 10 DEG C of salt bath heatings in liquid furnace place into salt made from earth containing a comparatively high percentage of sodium chloride and are cooled to 120 ± 10 DEG C of taking-ups；

Step S103, subzero treatment: workpiece after cooling in step S102 is put into cryogenic processor, in -140 DEG C of rings 4h is kept the temperature in border；

Step S104, it is tempered: the workpiece after subzero treatment in above-mentioned steps S103 is put into 110kw air circulation resistance band In furnace, adjusting heating coefficient is 1.5min/mm, is heated to 500 ± 10 DEG C, keeps the temperature 3h, comes out of the stove, be cooled to room temperature；

Step S105, grinding: then corase grinding to made allowance 0.08mm first is refined for the first time, and fine grinding is remaining to staying 0.03mm is measured, is refined again to made allowance ± 0.002mm；Fine grinding technology uses machine models for M7363 rotary grinder, turns Speed is 120r/min；Workpiece is impregnated into 20h in 145 DEG C of hot oil after roughly grinding and refine every time；At a constant temperature to essence after fine grinding Workpiece size after mill is tested；

Step S106, polish: polishing workpiece is to dimensional tolerance in -0.001mm, surface roughness < Ra0.07 μm；It uses Machine models are M7363 rotary grinder, and the Soft grinding wheel of model 46J is installed on bistrique, and setting machine rotational speed is 100/ Min polishes workpiece；

Two, the production of moving knife seat 13 and moving knife 14

Moving knife seat 13 and moving knife 14, which are used, makes identical step with rotor roll body 12；

Three, whole installation

Rotation axis 11 is mounted in roll body 12, it is then by the way of welding that moving knife seat 13 is fixed, using bolt Fixed moving knife 14.

Embodiment 6

A kind of working method of novel single cyclopentane gas detector is present embodiments provided, comprising the following specific steps

One, the production of rotor roll body 12

Step S101, it uses material for Cr12MoV alloy die steel, is poured 12 blank of machine-shaping rotor roll body, it is cooling Allowance for finish 0.45mm is stayed then to the 12 blank roughing of rotor roll body to room temperature；

Step S102, it quenches: workpiece in step S101 is put into the box resistance band furnace of 110kw, adjusting heating coefficient is 1.7min/mm is first heated to 650 ± 10 DEG C, keeps the temperature 8min, is again heated to 850 ± 10 DEG C, comes out of the stove after keeping the temperature 5min, is put into salt 1050 ± 10 DEG C of salt bath heatings in liquid furnace place into salt made from earth containing a comparatively high percentage of sodium chloride and are cooled to 120 ± 10 DEG C of taking-ups；

Step S103, subzero treatment: workpiece after cooling in step S102 is put into cryogenic processor, in -160 DEG C of rings 5h is kept the temperature in border；

Step S104, it is tempered: the workpiece after subzero treatment in above-mentioned steps S103 is put into 110kw air circulation resistance band In furnace, adjusting heating coefficient is 1.8min/mm, is heated to 500 ± 10 DEG C, keeps the temperature 3.5h, comes out of the stove, be cooled to room temperature；

Step S105, grinding: then corase grinding to made allowance 0.1mm first is refined for the first time, fine grinding to made allowance 0.04mm is refined again to made allowance ± 0.002mm；Fine grinding technology uses machine models for M7363 rotary grinder, revolving speed For 120r/min；Workpiece is impregnated into 25h in 145 DEG C of hot oil after roughly grinding and refine every time；At a constant temperature to fine grinding after fine grinding Workpiece size afterwards is tested；

Step S106, polish: polishing workpiece is to dimensional tolerance in -0.001mm, surface roughness < Ra0.07 μm；It uses Machine models are M7363 rotary grinder, and the Soft grinding wheel of model 46J is installed on bistrique, and setting machine rotational speed is 100/ Min polishes workpiece；

Two, the production of moving knife seat 13 and moving knife 14

Identical step is made using with rotor roll body 12；

Three, whole installation

Rotation axis 11 is mounted in roll body 12, it is then by the way of welding that moving knife seat 13 is fixed, using bolt Fixed moving knife 14.

Embodiment 7

A kind of working method of novel single cyclopentane gas detector is present embodiments provided, comprising the following specific steps

One, the production of rotor roll body 12

Step S101, it uses material for Cr12MoV alloy die steel, is poured 12 blank of machine-shaping rotor roll body, it is cooling Allowance for finish 0.50mm is stayed then to the 12 blank roughing of rotor roll body to room temperature；

Step S102, it quenches: workpiece in step S101 is put into the box resistance band furnace of 110kw, adjusting heating coefficient is 1.8min/mm is first heated to 650 ± 10 DEG C, keeps the temperature 10min, is again heated to 850 ± 10 DEG C, comes out of the stove after keeping the temperature 6min, is put into salt 1050 ± 10 DEG C of salt bath heatings in liquid furnace place into salt made from earth containing a comparatively high percentage of sodium chloride and are cooled to 120 ± 10 DEG C of taking-ups；

Step S103, subzero treatment: workpiece after cooling in step S102 is put into cryogenic processor, in -150 DEG C of rings 4h is kept the temperature in border；

Step S104, it is tempered: the workpiece after subzero treatment in above-mentioned steps S103 is put into 110kw air circulation resistance band In furnace, adjusting heating coefficient is 1.5min/mm, is heated to 500 ± 10 DEG C, keeps the temperature 3.5h, comes out of the stove, be cooled to room temperature；

Step S105, grinding: then corase grinding to made allowance 0.08-0.1mm first is refined for the first time, fine grinding is extremely Made allowance 0.05mm is refined again to made allowance ± 0.002mm；Fine grinding technology uses machine models for M7363 rotary table flat stone mill Bed, revolving speed 120r/min；Workpiece is impregnated into 20h in 145 DEG C of hot oil after roughly grinding and refine every time；After fine grinding at a constant temperature It tests to the workpiece size after fine grinding；

Step S106, polish: polishing workpiece is to dimensional tolerance in -0.001mm, surface roughness < Ra0.07 μm；It uses Machine models are M7363 rotary grinder, and the Soft grinding wheel of model 46J is installed on bistrique, and setting machine rotational speed is 100/ Min polishes workpiece；

Two, the production of moving knife seat 13 and moving knife 14

Identical step is made using with rotor roll body 12；

Three, whole installation

Rotation axis 11 is mounted in roll body 12, it is then by the way of welding that moving knife seat 13 is fixed, using bolt Fixed moving knife 14.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (8)

1. a kind of rotor of novel single cyclopentane gas detector, which is characterized in that including rotation axis (11) and roll body (12), the roll body (12) intermediate to be equipped with axis hole, the rotation axis (11) is arranged in axis hole, and the roll surface of the roll body (12) is equipped with wave groove (121) and several moving knife seats (13), moving knife seat (13) is axially distributed according to " people " font, and moving knife seat is connected with moving knife on (13) (14)。

2. the rotor of novel single cyclopentane gas detector according to claim 1, which is characterized in that the moving knife (14) includes knife Body (141) and four curved blades (142) for being placed in cutter hub (141) side, the center along cutter hub (141) offers screw hole, arc The cutting edge of shape blade (142) exceeds the end face of the screw hole.

3. the rotor of novel single cyclopentane gas detector according to claim 2, which is characterized in that the material of the moving knife seat (13) Material is stainless steel material, and the mounting hole (131) for installing moving knife (14) is offered on moving knife seat (13), and moving knife seat (13) has One mounting surface (132), mounting surface (132) and the moving knife (14) fit closely together.

4. the rotor of novel single cyclopentane gas detector according to any one of claims 1 to 3, which is characterized in that the rotation Axis (11) is in hollow form, is internally provided with feed pipe (15), is evenly distributed on feed pipe (15) and rotation axis (11) several Discharge hole (16) is equipped with perforation pore (17) on the roll body (12), the electrostatic additive point entered by feed pipe (15) It is dispersed in roll body (12), when rotor rotates, electrostatic additive is thrown away by perforation pore (17).

5. the rotor of novel single cyclopentane gas detector according to claim 4, which is characterized in that the moving knife seat (13) passes through It is welded on the bottom of wave groove (121).

6. the rotor of novel single cyclopentane gas detector according to claim 2, which is characterized in that the screw hole is circle.

7. the rotor of novel single cyclopentane gas detector according to claim 4, which is characterized in that the perforation pore (17) Diameter be 1mm.

8. the rotor of novel single cyclopentane gas detector according to claim 4, which is characterized in that the discharge hole (16) it is straight Diameter is 2mm.