CN207540945U - Sheath stream impedance counting device - Google Patents

Abstract

The utility model is related to a kind of sheath stream impedance counting device, including：Liquid storage tank, isolation tank and the counting chamber connected by pipeline；Wherein, counting chamber includes after-bay, forebay and the counting hole between after-bay and forebay；Isolation tank includes being connected to the inlet of liquid storage tank and is connected to the liquid outlet of after-bay；Wherein, the device for controlling flow rate of liquid is connected at the inlet position of isolation tank.By the device that control flow rate of liquid is equipped at the inlet position of isolation tank or at the inlet position close to isolation tank, reduction of speed processing effectively has been carried out to the liquid flowed out from inlet, the liquid of addition is made to touch the flow velocity of isolation tank inner wall or isolation tank bottom liquid level and is significantly smaller than flow velocity when liquid has just flowed out inlet, greatly reduce impact of the liquid of addition to isolation tank inner wall or isolation tank bottom liquid level, thus greatly reduce the probability for generating bubble, reduce interference of the bubble to counter, substantially increase the accuracy of instrument detection.

Description

Sheath stream impedance counting device

Technical field

The utility model is about a kind of sheath stream impedance counting device, is applied to flow cytometry especially with respect to one kind Sheath stream impedance counting device on instrument.

Background technology

Sheath stream impedance counting is the technology generally used in streaming blood analyser.Sheath stream impedance counter is typically by preceding Pond, after-bay and the counting hole three parts composition between forward and backward pond.Wherein, exist between the solution in forebay and after-bay Electric signal.When the particle in solution is by that can cause the variation of electric signal during counting hole between forward and backward pond, so forward and backward pond Between be isolated, typically after-bay is isolated.

The mode of air insulated is substantially taken in current technology, i.e., there are after one between after-bay feed liquor and liquid storage tank Pond isolation tank, liquid, which is first added dropwise in after-bay isolation tank, causes pressure difference, and then liquid is entered in after-bay, then goes out liquid from after-bay Waste liquid isolation tank is flowed out in mouthful, then enters back into waste liquid pool.Waste liquid isolation tank is equally using air insulated.After-bay isolation tank Bubble is generated since flow velocity is easily involved in greatly air in liquid feeding, bubble, which is mixed into after-bay, to generate interference to count value.Liquid When entering waste liquid isolation tank by liquid storage tank, since flow rate of liquid is larger, the liquid level in waste liquid isolation tank is directly impacted, is directly rushed Liquid and the contact of bottom liquid hit are very easy to generate bubble.

Current technology is substantially to take the mode of air insulated.Please refer to Chinese patent application publication No. (application number is CN102533536A：201010609840.X).The patent application disclose a kind of counter assembly, including counting Device, waste liquid isolation ward, rear sheath isolation ward and pressure balance pipeline.The counter has forebay, after-bay, rear sheath entrance and waste liquid Outlet, the forebay are connected with after-bay by counting hole, and the rear sheath entrance and waste liquid outlet are connected with the after-bay, described Sheath isolation ward is connect with the rear sheath entrance afterwards, and the waste liquid isolation ward is connect with the rear sheath entrance, the waste liquid isolation ward It is connect with the waste liquid outlet, the rear sheath isolation ward passes through gas piping JA(junction ambient) air.The pressure balance pipeline The rear sheath isolation ward and waste liquid isolation ward are connected, and pressure-equalizing pipe road is equipped with that the pressure of its break-make is controlled to put down Weigh controller.Liquid, which is first dropped into waste liquid isolation ward, causes pressure difference, and then liquid is entered via rear sheath entrance in after-bay, Waste liquid isolation tank is flowed out to from the waste liquid outlet of after-bay again, then enters back into waste liquid pool.Waste liquid isolation tank is equally using air Isolation.After-bay generates bubble in liquid feeding since the flow velocity of liquid is easily involved in greatly air, and bubble is mixed into after-bay can be to counting The count value of device generates interference.In addition, in above process, since flow rate of liquid is larger, especially when the liquid of addition is direct When impacting the liquid level in waste liquid isolation tank, the liquid of addition forms direct impact to the liquid of waste liquid isolation tank bottom, holds very much It is also easy to produce bubble.In order to solve this technical barrier, technical solution disclosed in Chinese patent application publication No. CN102533536A It is：The first filling opening is obliquely installed, ensures that liquid rushes at the first side wall of the first pond body at a certain angle during the addition process, It is flowed into the first pond body along the first side wall again later, air is involved in the possibility of liquid as far as possible during reduction liquid feeding.

U.S.'s US5,085,833 patents disclose another liquid discharge tube road device.In order to avoid adding in liquid During body, bubble is generated in container, the inlet tube of the plumbing installation bends to " u "-shaped in the inside cavity point of container, makes its end Hold close and face container inner wall.When adding in liquid, liquid first impacts the inner wall of container, then again in container Wall directly impacts the liquid level of container bottom so as to avoid the liquid of addition, reduces the generation probability of bubble toward flowing down.

Although liquid that above-mentioned two parts of patent publication us avoid addition directly impacts the liquid level of container bottom, certain journey Play the role of reducing the generation probability of bubble on degree, but its limitation is also apparent.For example, hydraulic shock to hold As flow velocity during device inner wall is almost with flow velocity of the liquid when leaving inlet, without significantly slowing down.Therefore, add The liquid entered is very big (flow velocity for adding in liquid is faster, and impact force is bigger) to the impact force of container inner wall.The liquid of addition After container inner wall is impacted, only a small number of liquid are past dirty along container inner wall as designer expects, and most Liquid then rebounds after container inner wall is touched, and is formed and splashed in container.These liquid to splash are dropping into container bottom When, impact is formed to the liquid level of container bottom, so as to easily have an impact the bubble of count accuracy.

For overcome the deficiencies in the prior art, the utility model proposes a kind of completely new technical solution, to liquid from It opens to reduction of speed processing is carried out during the liquid level for touching container inner wall or container bottom liquid after inlet, so as to reduce The liquid added in greatly reduces the general of bubble generation to the impact force of the liquid level of container inner wall or container bottom liquid Rate reduces the interference that bubble counts counter, and then substantially increases the accuracy of counter counting, finally greatly improves The accuracy of Biochemical Analyzer detection.

Utility model content

The technical solution of the utility model is：A kind of sheath stream impedance counting device is provided, including：The storage connected by pipeline Liquid pool, isolation tank and counting chamber；Wherein, counting chamber includes after-bay, forebay and the counting hole between after-bay and forebay；Every Include being connected to the inlet of liquid storage tank from pond and be connected to the liquid outlet of after-bay；It is characterized in that：In the inlet of isolation tank The device for controlling flow rate of liquid is connected at position or control liquid is equipped at the inlet position close to isolation tank The device of flow velocity.

" device for controlling flow rate of liquid is connected at the inlet position of isolation tank " described in the utility model It refers to：It connects that one end fixed setting of the pipeline of the inlet of isolation tank at inlet position and is useful for control liquid flow The device of speed is removably installed the device for being useful for control flow rate of liquid.

As being further improved for the utility model, it is described for control the device of flow rate of liquid include being arranged on it is described into Block at liquid mouth is equipped with channel between inlet and block, the liquid flowed out from inlet diffuses to block by the channel Surface.

As being further improved for the utility model, the block is the strip with the substantially parallel placement of isolation tank bottom wall Cylindrical structure.

As being further improved for the utility model, the block is discoid with the substantially parallel placement of isolation tank bottom wall Either conical structure is discoid or the center face inlet of conical structure.

As being further improved for the utility model, it is described for control the device of flow rate of liquid include being arranged on it is described into Diffuser structure at liquid mouth, the diffuser structure include the cavity that is connected with inlet, the aperture of the cavity inner wall from its with One end that inlet is connected is stepped up to its that one end far from inlet.

It is described to be used to that the device of flow rate of liquid to be controlled to include being connected with inlet as being further improved for the utility model Shower apparatus, which includes the cavity that connect with inlet and connects cavity and at least two flowers of isolation tank inner cavity Spill hole.

As being further improved for the utility model, the shower apparatus includes a cylindrical structure, bottom wall and side Wall is equipped with shower hole.

As being further improved for the utility model, the shower apparatus includes a conical structure, only in its bottom wall Equipped with shower hole.

It is described to contain sea for controlling in the cavity of the device of flow rate of liquid as being further improved for the utility model The porosity such as silk floss, cotton, filter paper, cloth allow the material of Liquid Penetrant.

As being further improved for the utility model, the inlet is located at the side wall of isolation tank, and the isolation tank Slant setting, that side wall where inlet are selected from angle of the horizontal plane in clock three direction：More than or equal to 30 It spends angle and is less than 45 degree of angles, more than or equal to 45 degree angles less than or equal to 60 degree of angles, more than 60 degree angles less than or equal to an angle of 90 degrees, more than 90 degree Angle is less than or equal to 120 degree of angles, more than 120 degree angles are less than or equal to 135 degree of angles and more than 135 degree angles and are less than or equal to 150 degree of angles.

As being further improved for the utility model, the isolation tank is placed vertically, and the inlet is located at isolation tank Roof, the liquid flowed out from inlet at least partly first flows to the device of the control flow rate of liquid, then through the control liquid The cavity of isolation tank is flowed into after the device diffusion of body flow velocity again.

The another technical solution of the utility model is：A kind of stream type cell analyzer is provided, it is characterised in that：Including upper State the sheath stream impedance counting device of the technical solution of any one the utility model.

Advantageous effect

By at the inlet position of isolation tank or close to isolation tank inlet position at be equipped with control liquid The device of flow velocity has effectively carried out reduction of speed processing to the liquid flowed out from inlet, the liquid of addition is made to touch isolation tank The flow velocity of inner wall or isolation tank bottom liquid level is significantly smaller than flow velocity when liquid has just flowed out inlet, greatly reduces addition Impact of the liquid to isolation tank inner wall or isolation tank bottom liquid level, thus greatly reduce the probability for generating bubble, reduce Interference of the bubble to counter substantially increases the accuracy of instrument detection.

When the device of the control flow rate of liquid includes being arranged on the diffuser structure at the inlet, due to this gradually The aperture of expander structure is stepped up from its one end with input duct connection to its close that one end that pool wall is isolated, addition The flow velocity of liquid can gradually slow down, so as to significantly reduce the liquid of addition to isolation tank inner wall or isolation tank bottom liquid level Impact dynamics.

When the device of the control flow rate of liquid includes block, which is prolonged from the inner wall of isolation tank to isolation tank internal cavity Stretch and at least partly it is opposite with the inlet when, the liquid of addition first impacts block after inlet flow out, through gear After the buffering of block, the flow velocity of liquid is substantially reduced, otherwise liquid with the inner wall of relatively low flow velocity touching isolation tank, then along The inner wall of isolation tank swimmingly toward flowing down or being broken up, is dropped into the liquid of isolation tank bottom with relatively low flow velocity, so as to Significantly reduce impact dynamics of the liquid to isolation tank inner wall or isolation tank bottom liquid level of addition.

When the inlet is located at the side wall of isolation tank, the liquid of addition will not directly be impacted from after inlet outflow The liquid level of isolation tank bottom, so as to reduce the probability for generating bubble.

It is less than 45 degree of angles when that side wall where inlet and the angle of horizontal plane are more than or equal to 30 degree of angles, is more than or equal to When 45 degree of angles are less than or equal to 60 degree of angles, the liquid of addition is sprayed from after inlet outflow with the oblique top of the camber line of near parabolic It is shot out, the Gravitative Loads power of liquid can reduce the flow velocity of liquid, then gently fall in the inner wall where inlet.When into When the angle of that side wall and horizontal plane where liquid mouth is more than 60 degree of angles less than an angle of 90 degrees, liquid is ejected into is arranged on obliquely On the block of isolation tank inner wall, by the buffering of block and after breaing up, then gently reversely penetrate in where inlet Wall, flow rate of liquid reduce.When that side wall where inlet and the angle of horizontal plane are equal to an angle of 90 degrees, liquid is from feed liquor After opening's edge horizontal direction ejects, with the camber line of near parabolic obliquely to being arranged on the block of isolation tank inner wall, pass through The buffering of block and after breaing up, is then gently reversely penetrated in the inner wall where inlet, flow rate of liquid reduces.Work as feed liquor When the angle of that side wall and horizontal plane where mouthful is more than an angle of 90 degrees less than or equal to 120 degree of angles, liquid is ejected into sets obliquely It puts on the block of isolation tank inner wall, by the buffering of block and after breaing up, then gently reversely penetrates where inlet Inner wall, flow rate of liquid reduces.When that side wall where inlet and the angle of horizontal plane are less than or equal to more than 120 degree of angles When 135 degree of angles and more than 135 degree angles are less than or equal to 150 degree of angles, liquid is ejected into the block for being arranged on isolation tank inner wall obliquely On, by the buffering of block and after breaing up, then gently reversely penetrate in the inner wall where inlet, flow rate of liquid reduces .

When the angle between the plane where the block and the axis of inlet is selected from：More than or equal to 30 degree angles are less than 45 degree of angles, more than or equal to 45 degree angles are less than or equal to 60 degree of angles, more than 60 degree angles and are less than or equal to 90 degree of angles, are less than more than an angle of 90 degrees It, can also when equal to 120 degree angles, more than 120 degree angles are less than or equal to 135 degree of angles and more than 135 degree angles less than or equal to 150 degree of angles Obtain the technique effect similar with the technical solution of above-mentioned record.Applicant repeats no more.

When the isolation tank is placed vertically, the inlet is located at the roof of isolation tank, the dress of the control flow rate of liquid It puts and is connected with inlet, the liquid flowed out from inlet at least partly first flows to the device of the control flow rate of liquid, Ran Houjing The cavity of isolation tank is flowed into after the device diffusion of the control flow rate of liquid again, so as to also reduce the flow velocity of liquid.

In addition, inlet and liquid outlet to be arranged to the side of isolation tank, be conducive to reduce after-bay isolation tank vertical The installation space in direction.By isolation tank pond body tiltably-mounted, be conducive to make liquid pools in one jiao, even in isolation bottom only Also good fluid-tight can be still kept in the case of having the solution of less volume, meanwhile, inclined pond inner wall has liquid Better drainage effect.

Side feed liquor, inlet and liquid outlet are arranged at the side of pond body, are conducive to reduce after-bay isolation tank vertical The installation space in direction.

Isolation tank tilts, and makes one jiao of liquid pools in isolation tank, even if also can in isolation tank there is only during less liquid Good fluid-tight is kept to liquid outlet, meanwhile, inclined pool wall has better liquid drain effect, so as to reduce generation gas The probability of bubble.

Description of the drawings

Fig. 1 is the schematic diagram of the first embodiment of the utility model.

Figure 1A -1C are the first designing schemes of the isolation tank in Fig. 1, and Fig. 1 D-1F are second of the isolation tank in Fig. 1 Designing scheme.

Fig. 2 is the schematic diagram of the second embodiment of the utility model.

Fig. 2A -2C are the first designing schemes of the isolation tank in Fig. 2, and Fig. 2 D-2F are second of the isolation tank in Fig. 2 Designing scheme.

Fig. 3 is the schematic diagram of the 3rd embodiment of the utility model.

Fig. 3 A are the enlarged diagrams of the isolation tank in Fig. 3, Fig. 3 B and 3C be the device in Fig. 3 A the first and second Kind designing scheme；Fig. 3 D-3F are the third and the 4th kind of designing scheme of the device in Fig. 3.

Fig. 4 is the schematic diagram of the fourth embodiment of the utility model.

Fig. 4 A-4C are the first designing schemes of the isolation tank in Fig. 4, and Fig. 4 D-4F are second of the isolation tank in Fig. 4 Designing scheme, Fig. 4 G are the third designing schemes of the isolation tank in Fig. 4.

Fig. 5 is the schematic diagram of the 5th embodiment of the utility model.

Fig. 5 A-5C are the first designing schemes of the isolation tank in Fig. 5, and Fig. 5 D are to set for second of the isolation tank in Fig. 5 Meter scheme.

Fig. 6 A and 6B are the schematic diagrames of first, second kind of designing scheme of the sixth embodiment of the utility model.

Fig. 6 C are the close-up schematic views in Fig. 6 A.

Fig. 7 A and 7B are the schematic diagrames of first, second kind of designing scheme of the 7th embodiment of the utility model, and Fig. 7 C are Partial bottom view in Fig. 7 A.

Fig. 8 A-8G are seven kinds of riding position schematic diagrames of the isolation tank in the first embodiment of the utility model.

Specific embodiment

Embodiment 1

It please refers to Fig.1, the sheath stream impedance counting device of the present invention includes：Liquid storage tank 100, isolation tank 200 and counting chamber 300.Wherein, counting chamber 300 includes after-bay 400, forebay 500 and the counting hole 600 between after-bay 400 and forebay 500. Isolation tank 200 includes a container body 201, inlet 202 and liquid outlet 204, wherein, container body 201 includes roof 203, bottom Wall 205, side wall 207.The roof, bottom wall and side wall surround the internal cavity 209 of isolation tank.Container body 201 can be cylinder, Cube, positive gengon, sphere, ellipsoid or to be cylinder combine with hemisphere or cone.The feed liquor of isolation tank Mouthfuls 202 are connected to liquid storage tank 100 by pipeline 700 (general designation of whole pipelines, in full together), the liquid outlet 204 of isolation tank by Pipeline 700 is connected to after-bay 400.The innovation of the present invention mainly includes：A it) is connected at 202 position of inlet of isolation tank 200 It is useful for the device 206 of control flow rate of liquid or setting is useful at position near the inlet 202 of isolation tank 200 In control flow rate of liquid device 206 (at this point, 206 at least part of device for being used to control flow rate of liquid and isolation tank 200 Inlet 202 it is opposite)；B) for controlling the novel structure of the device 206 of flow rate of liquid；C) the new peace of the novelty of isolation tank 200 Put mode；And D) inlet 202 of isolation tank 200 and the novel setting etc. of liquid outlet 204.

In the first scheme of embodiment 1, the isolation tank 200 is designed to slant setting, that is, isolation tank 200 it The angle of axis or center line and horizontal plane is not equal to 90 degree.In the second scheme of embodiment 1, the isolation tank 200 It is designed to be disposed vertically, that is, the axis or center line of isolation tank 200 and the angle of horizontal plane are equal to 90 degree.

It please refers to Fig.1 shown in A-1F, wherein, Figure 1A is the first of isolation tank 200 in vertical place in the present invention Structure diagram, Figure 1B and 1C are the right view and bottom view of Figure 1A respectively；Fig. 1 D are isolation tanks 200 in the present invention vertical Second of structure diagram during placement, Fig. 1 E and 1F are the right view and bottom view of Fig. 1 D respectively.In the first embodiment, It is described for control flow rate of liquid device 206 include block, the block from isolation tank internal cavity 209 from inner wall to isolation tank Extend (inner wall that i.e. block protrudes from isolation tank), and at least partly opposite with the inlet 202.It is of the present invention " for controlling the device of flow rate of liquid at least partly opposite with the inlet " refers to：For controlling the device of flow rate of liquid At least part of structure makes the orthographic projection of inlet outer profile be fallen in whole or in part for controlling close to inlet 202 On the device of flow rate of liquid, and it can allow from least part hydraulic shock that inlet flows out or flow on the block. In another scheme, block 206 extends from isolation tank inner wall 207 to isolation tank internal cavity 209 and makes the end of block 206 Hold the axis or center line 5mm (millimeter, in full together) at least over inlet 202.The inlet 202 is located at isolation tank 200 Side wall 207.The block 206 includes the strip extended from the roof 203 of isolation tank 200 to the internal cavity 209 of isolation tank Cylindrical structure (as shown in Figure 1A -1C and 2D-2F) or the inclined slab construction of strip (as shown in Fig. 1 D-1F and 2A-2C).

In embodiment 1, the feed liquor mode of isolation tank 200 is side feed liquor, that is, 204 equal position of inlet 202 and liquid outlet In the side wall 207 of isolation tank 200.The roof 203 in the 206 self-isolation pond of block extend to the internal cavity 209 of isolation tank and It is vertical with the roof 203 of isolation tank, and at least part structure is opposite with the inlet of isolation tank 200.Simultaneously by isolation tank 200 vertical or slant settings make in internal cavity 209 liquid pools in the bottom of isolation tank 200 (where inlet 202 Position is higher than the position where liquid outlet 204).

In addition, in alternative scheme, the inlet 202 is located at the roof 203 of isolation tank, and the block 206 is then Positioned at the side wall 207 of isolation tank, that is, the block 206 includes to the internal cavity 209 of isolation tank being prolonged from the side wall 207 of isolation tank The structure stretched, and at least make part block 206 opposite with inlet 202.

Inlet 202 is arranged on the side wall of isolation tank container body, both can perpendicular to side wall feed liquor, can also tilt into Liquid.Liquid outlet 204 can be arranged on the lower sidewall of the isolation tank container body of pond body, may also be arranged on the bottom of isolation tank container body Wall.

Block 206 can with isolation tank container body by integral forming, be releasably attached to again after can also being fabricated separately every From in pond 200.

The vertical length of block 206 is less than the half of isolation tank container body height, and preferred scope is arrived for 1/5th Between 1/3rd.206 shortest distance of block, which is subject to, can stop the liquid of entrance (liquid i.e. after feed liquor can Impact block 206).Block 206 can be cylindric or tabular.The minimum widith of block 206 is more than the interior of inlet Diameter, the maximum width of block 206, which is subject between block 206 and the side wall of isolation tank to be formed, hangs liquid.It is described to hang what liquid referred to The drop being attached between block and side wall.The general a diameter of 2mm-5mm for hanging liquid, therefore, the side of block 206 and isolation tank Minimum clearance between wall is greater than 5mm.

Block 206 is as follows to the buffering detailed process of rapid flow liquid：Liquid is from the inlet of isolation tank side wall 207 After 202 enter, liquid a part of first is directly impinging on block 206, is broken up this partially liq by block 206, after breaing up Liquid with slower speed by dropped into after the pool wall drainage of isolation tank liquid level in the bottom of pond or isolation tank of isolation tank or Person directly drops onto the liquid level in the bottom of pond or isolation tank of isolation tank；Secondly, another liquid, under the blocking of block 206, Skid off and be directly impinging on the side wall 207 of isolation tank from the both sides of block 206, this partially liq along side wall 207 flow into every Bottom of pond from pond either the liquid level in isolation tank or directly drops onto liquid level in the bottom of pond or isolation tank of isolation tank.

After liquid enters the internal cavity 209 of isolation tank, the liquid level in isolation tank, which rises, generates pressure difference, makes the liquid in pond It is flowed into the after-bay 400 of counting chamber, then the liquid outlet from 300 top of counting chamber is flowed into waste liquid isolation tank (not shown).When every When restoring from the air pressure in pond 200, liquid stops flowing, and the air pressure in isolation tank reaches equilibrium state.Due to inclining for isolation tank It tiltedly places, makes the liquid outlet 204 of its underpart always in liquid level position hereinafter, air will not enter what is connect with after-bay 400 Pipeline.

Since block 206 has played liquid buffering, reduce the flow velocity of liquid, therefore, when liquid drop into every Bottom of pond from pond either liquid level in isolation tank when substantially reduce liquid to the liquid level in the bottom of pond or isolation tank of isolation tank Impact dynamics, thus greatly reduce and be involved in the probability that air generates bubble in isolation tank.

Embodiment 2

It is the second embodiment of the utility model shown in Fig. 2 and Fig. 2A -2F.Second embodiment and first embodiment it is main The difference is that：The block 206 is 45 degree of angles relative to the angle of the roof 203 of isolation tank, i.e., described 206 self-isolation pond of block Roof 203 extend to the internal cavity 209 of isolation tank, and the angle of the plane all with the roof 203 of isolation tank is 45 degree Angle or 135 degree of angles.Inventor shows the angle of the block 206 plane all with the roof 203 of isolation tank by experiment For that can also be selected from：More than or equal to 30 degree angles are less than or equal to 60 degree of angles, more than 60 degree angles and are less than an angle of 90 degrees, equal to 900 degree Angle, more than 90 degree angles are less than or equal to 120 degree of angles and more than 120 degree angles and are less than or equal to 150 degree of angles.Due to the above-mentioned design of block, Plane where the block and the angle between the axis of inlet can also be 45 degree of angles or 135 degree of angles or choosing From in：More than or equal to 30 degree angles are less than or equal to 60 degree of angles, more than 60 degree angles and are less than an angle of 90 degrees, equal to 900 degree angles, more than an angle of 90 degrees It is less than or equal to 150 degree of angles less than or equal to 120 degree of angles and more than 120 degree angles.

In example 2, block 206 can also be the plate-like structure shown in Fig. 2A -2C.The plate-like structure to keep off Block has larger area, has preferably buffering and drainage effect for the liquid impacted thereon.

Embodiment 3

It is the 3rd embodiment of the utility model shown in Fig. 3 and Fig. 3 A-3F.3rd embodiment and first embodiment it is main The difference is that：A) isolation tank 200 places (can certainly slant setting, but vertical better when placing) vertically；B) The inlet 202 of isolation tank is located on the roof 203 of isolation tank, and the liquid outlet 204 of isolation tank is located at the side wall 207 of isolation tank On lower part or bottom wall 205；C it is) one discoid (as shown in Figure 3D) or circular cone for controlling the device 206 of flow rate of liquid Body structure (as shown in Figure 3A).At this point, discoid or conical structure is fixed on the inner wall of isolation tank, discoid or Be designed between the edge of person's conical structure and the inner wall 207 of isolation tank allow liquid by gap.As shown in Figure 3B, exist The edge designs of discoid either conical structure have several allow liquid by notch or groove 208.Such as Fig. 3 C institutes Show, except discoid either conical structure edge designs have allow liquid by cellular structure or be equipped with porous Property material material make annulus 210 (such as：Sponge ring, rubber ring with holes, ring for being twisted by porous materials such as cloth etc.).It removes It is designed outside jagged or groove 208 in the outer edge region of discoid either conical structure, it can also in other regions It is designed with several apertures 213 (as shown in figures 3 e and 3f).It can also be in discoid or conical structure outer edge region There is no notch or groove, and several 213 (not shown) of aperture are only designed in other regions.

Embodiment 4

It is the fourth embodiment of the utility model shown in Fig. 4 and Fig. 4 A-4G.Fourth embodiment and first embodiment it is main The difference is that：A) isolation tank 200 places (can certainly slant setting, but vertical better when placing) vertically；B) The inlet 202 of isolation tank is located on the roof 203 of isolation tank, and the liquid outlet 204 of isolation tank is located at the side wall 207 of isolation tank On lower part or bottom wall 205；C) for the device of flow rate of liquid to be controlled to include being arranged on the block 206 at the inlet 202, Inlet 202 is connected with block 206, and between the two equipped with channel 212, the liquid flowed out from inlet 202 passes through the channel 212 Afterwards, the upper surface of block 206 is diffused to, after being drained by the upper surface of block 206, is dropped into isolation tank, so as to make liquid Flow velocity slow down.

As shown in figs. 4 a-4 c, the block 206 is the strip cylinder with the 205 substantially parallel placement of isolation tank bottom wall Structure, block 206 form an alphabetical T-shape structure with the pipeline where the inlet 202.As an alternative, it is described Block 206 can also be one with the disc-shaped structure (as shown in Fig. 4 D-4F) of 205 substantially parallel placement of isolation tank bottom wall or Conical structure (as shown in Figure 4 G).At this point, discoid or conical structure is fixed on the inner wall 207 of isolation tank, circle The center face inlet 202 of cylinder or cone.At discoid or conical structure edge and the inner wall of isolation tank Be designed between 207 allow liquid by the gap embodiment 3 of (concrete structure refer to the utility model).

Embodiment 5

It is the 5th embodiment of the present invention shown in Fig. 5 and Fig. 5 A-5D.The essential difference of 5th embodiment and first embodiment It is：It is described to be used to that the device of flow rate of liquid to be controlled to include being arranged on the diffuser structure 206 at the inlet 202.This is gradually Expander structure 206 includes the cavity 215 that is connected with inlet 202, and the aperture of the inner wall of the cavity 215 is from itself and inlet 202 The one end being connected is stepped up to its that one end far from inlet 202.Diffuser structure 206 can be cone shape or It is horn-like.Diffuser structure 206 and the non-coaxial installation of pipeline of inlet 202, that is, the axis of diffuser structure or center The axis of channel where line and inlet either center line neither it is be overlapped also not parallel preferably intersect or press from both sides one it is sharp Angle, so as to enable to be avoided by the blocking of 206 wall surface of diffuser and in water storage state by the liquid that inlet tube 202 enters into Liquid in liquid pipe reduces the generation probability of bubble directly via the liquid level in diffuser impact isolating pond.When diffuser structure When 206 axis or center line with respect to the horizontal plane up tilt, the effect of diffuser will more preferably.

Diffuser structure 206 plays the role of slowing down flow rate of liquid, does not need to additionally set arrester can again in this way The flow velocity of liquid is lowered.

The detailed process that flow rate of liquid is reduced by diffuser structure 206 is as follows：The liquid entered from inlet 202 rushes first The inner wall of diffuser structure 206 is hit, is then gathered in the larger region of volume, during accumulation, slows down liquid Flow velocity.When the liquid in diffuser structure 206 is full of and when overflowing, the liquid of spilling is flowed into along the madial wall of isolation tank 200 The internal cavity 209 of isolation tank.

Embodiment 6

It is the sixth embodiment of the utility model shown in Fig. 6 A-6C.The essential difference of sixth embodiment and first embodiment It is：The shower apparatus 206 being connected for the device of flow rate of liquid to be controlled to include with inlet 202.Shower apparatus 206 is logical Its opening 220 is crossed to connect with the pipeline of inlet 202.Shower apparatus 206 includes the cavity 218 connected with inlet 202 and connects Logical cavity 218 and at least two shower holes 222 of isolation tank inner cavity 209.The shower apparatus 206 includes a cylinder knot Structure, bottom wall and side wall are equipped with shower hole 222 (shown in Fig. 6 C).In the present embodiment, isolation tank 200 can both be put vertically (Fig. 6 A) is put, it can also slant setting (Fig. 6 B).

Embodiment 7

It is the 7th embodiment of the utility model shown in Fig. 7 A-7C.The essential difference of 7th embodiment and sixth embodiment It is：Cylindrical structure is changed to conical structure by the shower apparatus 206, and is only equipped with shower hole 224 in its bottom wall, His structure all same.

It is described to be accommodated for controlling in the cavity of the device of flow rate of liquid in further improvement step designing scheme There is the filling that the porosity such as sponge, cotton, filter paper, activated carbon, porous ceramics, silk screen, glass fibre, fabric allow Liquid Penetrant Material.

The disposing way of isolation tank included by the utility model is please referred to shown in Fig. 8 A-8G.By taking first embodiment as an example (other embodiment can be analogized), that side wall 207 and water where the center line 228 of the isolation tank or inlet 202 Angle of the plane in clock three direction 226 is approximately equal to 45 degree and either 135 degree or is selected from：More than or equal to 30 degree angles are small Less than or equal to 120 degree of angles and it is more than less than an angle of 90 degrees, equal to an angle of 90 degrees, more than an angle of 90 degrees in equal to 60 degree angles, more than 60 degree angles 120 degree of angles are less than or equal to 150 degree of angles.When isolation tank slant setting, liquid be used for control flow rate of liquid device buffering or After person breaks up, the internal cavity of isolation tank is slipped into along the inner wall of isolation tank, there is better drainage effect, reduce generation bubble Probability.

To make present patent application specification concise, applicant is disclosed only in other examples with first in fact The content distinguished in example is applied, as other same content, then is not repeated to describe.

In this bright all embodiment, block 206 can be by hard materials systems such as rigid plastics, wooden unit, bamboo chip, metals Make or the flexible materials such as rubber, flexible plastic, waterproof paper, fiber make.When being made of flexible material, block 206 is preferably appropriate longer, to the buffering effect of liquid more preferably.

The utility model also discloses a kind of including above-mentioned sheath stream other than disclosing above-mentioned sheath stream impedance counting device The stream type cell analyzer of impedance counting device.Since the main of stream type cell analyzer of the utility model thes improvement is that Such as the sheath stream impedance counting device being before disclosed in detail, other structures are then substantially same as the prior art, and therefore, applicant exists This is repeated no more.

Although the substantive content of the utility model has been carried out adequately disclosure in present patent application, inventor is not The content thing of the utility model carefully may all be recorded without tool.It is any can according to present patent application disclosure of that without The content that creative work is i.e. available or derives is needed, should all be included in present patent application disclosure of that, belong to In present patent application range claimed.

Claims (12)

1. a kind of sheath stream impedance counting device, including：Liquid storage tank, isolation tank and the counting chamber connected by pipeline；Wherein, it counts Pond includes after-bay, forebay and the counting hole between after-bay and forebay；Isolation tank includes the inlet for being connected to liquid storage tank With the liquid outlet for being connected to after-bay；It is characterized in that：It is connected with to control flow rate of liquid at the inlet position of isolation tank Device.

2. sheath stream impedance counting device according to claim 1, it is characterised in that：The dress for being used to control flow rate of liquid The block including being arranged at the inlet is put, channel is equipped between inlet and block, the liquid warp flowed out from inlet Cross the surface that the channel diffuses to block.

3. sheath stream impedance counting device according to claim 2, it is characterised in that：The block is put down with isolation tank bottom wall The strip cylindrical structure that row is placed.

4. sheath stream impedance counting device according to claim 2, it is characterised in that：The block is put down with isolation tank bottom wall Row place discoid either conical structure is discoid or the center face inlet of conical structure.

5. sheath stream impedance counting device according to claim 1, it is characterised in that：The dress for being used to control flow rate of liquid The diffuser structure including being arranged at the inlet is put, which includes the cavity connected with inlet, the sky The aperture of cavity wall is stepped up from one end that it is connected with inlet to its that one end far from inlet.

6. sheath stream impedance counting device according to claim 5, it is characterised in that：The diffuser structure in horn-like or Person's cone shape, the axis of diffuser either center line and the axis or center line of channel where inlet it is neither be overlapped nor It is parallel.

7. sheath stream impedance counting device according to claim 1, it is characterised in that：The dress for being used to control flow rate of liquid The shower apparatus including being connected with inlet is put, which includes the cavity connected with inlet and connection cavity with being isolated At least two shower holes of pond inner cavity.

8. sheath stream impedance counting device according to claim 7, it is characterised in that：The shower apparatus includes a cylinder Body structure, bottom wall and side wall are equipped with shower hole.

9. sheath stream impedance counting device according to claim 7, it is characterised in that：The shower apparatus includes a circular cone Body structure is only equipped with shower hole in its bottom wall.

10. the sheath stream impedance counting device according to any one of claim 5-9, it is characterised in that：It is described to be used to control Sponge, cotton, filter paper, activated carbon, porous ceramics, silk screen, glass fibre, fabric are contained in the cavity of the device of flow rate of liquid Porosity allows the packing material of Liquid Penetrant.

11. the sheath stream impedance counting device according to any one of claim 1-9, it is characterised in that：The inlet position In the side wall of isolation tank, and the isolation tank slant setting, that side wall where inlet and horizontal plane are in 3 points of clock The angle in clock direction is selected from：More than or equal to 30 degree angles are less than 45 degree of angles, more than or equal to 45 degree angles and are less than or equal to 60 degree of angles, are more than 60 degree of angles are less than or equal to an angle of 90 degrees, 120 degree of angles are less than or equal to more than an angle of 90 degrees, more than 120 degree angles are less than or equal to 135 degree of angles and big It is less than or equal to 150 degree of angles in 135 degree of angles.

12. the sheath stream impedance counting device according to any one of claim 1-9, it is characterised in that：The isolation tank erects Straight to place, the inlet is located at the roof of isolation tank, and the liquid flowed out from inlet at least partly first flows to the control liquid Then the device of body flow velocity is flowed into the cavity of isolation tank again after the device diffusion of the control flow rate of liquid.