CN109745588A - Dialysis concentrate pressure stabilizing liquid-supplying system and its pressure stabilizing feed liquid method - Google Patents
Dialysis concentrate pressure stabilizing liquid-supplying system and its pressure stabilizing feed liquid method Download PDFInfo
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- CN109745588A CN109745588A CN201711064220.0A CN201711064220A CN109745588A CN 109745588 A CN109745588 A CN 109745588A CN 201711064220 A CN201711064220 A CN 201711064220A CN 109745588 A CN109745588 A CN 109745588A
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- 239000007788 liquid Substances 0.000 title claims abstract description 247
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 87
- 239000012141 concentrate Substances 0.000 title claims abstract description 50
- 238000000502 dialysis Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000033228 biological regulation Effects 0.000 claims abstract description 43
- 238000005086 pumping Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000001802 infusion Methods 0.000 claims abstract description 8
- 238000010079 rubber tapping Methods 0.000 claims description 26
- 238000001631 haemodialysis Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000000322 hemodialysis Effects 0.000 claims description 10
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 208000020832 chronic kidney disease Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000385 dialysis solution Substances 0.000 description 1
- 208000028208 end stage renal disease Diseases 0.000 description 1
- 201000000523 end stage renal failure Diseases 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Abstract
The present invention relates to a kind of dialysis concentrate pressure stabilizing liquid-supplying systems, feeder, feeding device, liquid storing barrel stable-pressure device, pressure stabilizing liquid feed device and the pumping equipment being connected to including control system, liquid storing barrel and respectively by pipeline with the liquid storing barrel, the control system are electrically connected with the feeder, the feeding device, the liquid storing barrel stable-pressure device, the pressure stabilizing liquid feed device and the pumping equipment.Dialysis concentrate pressure stabilizing liquid-supplying system provided by the invention is controlled the switch of speed regulation air pump and intake valve by control system in feed flow, when needing fluid infusion, control system controls ratio valve opening and liquid storing barrel relief valve vent pressure, to keep pressure stabilizing state in liquid storing barrel, realizes pressure stabilizing feed flow.Entire feed flow process, air pump and concentrate be it is non-contacting, the problem of being concentrated corrosion so as to avoid pump housing contact stain concentrate and the pump housing and shorten pump housing service life.
Description
Technical field
The present invention relates to field of medical device, supply more particularly to a kind of dialysis concentrate pressure stabilizing liquid-supplying system and its pressure stabilizing
Liquid method.
Background technique
Hemodialysis is that one kind is substituted mainly for End-stage renal failure patient with associated medical devices
The therapeutic modality of kidney function.Liquid-supplying system of hemodialysis center is a kind of feed liquid way of hemodialysis apparatus, worked
Journey be by dialyzate liquid dispensing device centralized and unified supply dialysis concentrate, dialyse concentrate and water for dialysis it is formulated at qualified
Diluted dialyzate is sent to each haemodialysis control unit by pipeline by dialyzate.
Existing water pump type liquid feed device, usually uses centrifugal pump or gear pump as the power resources of feed flow.This
The problem of kind liquid feed device, is that the parts such as impeller, impeller shaft, pump housing of water pump are directly contacted with concentrate, in impeller shaft
Grease can penetrate into solution, pollute the solution to be transmitted;And concentrate has corrosivity, connects for a long time with the metal of the pump housing
Touching, the part of the pump housing is easy to be corroded and oxidation and rusting, pollutes the solution to be transmitted, while also shorten water pump uses the longevity
Life.
Summary of the invention
Based on this, it is necessary to a kind of dialysis concentrate pressure stabilizing liquid-supplying system and its pressure stabilizing feed liquid method are provided, it is existing to solve
Grease pollution dialysis solution, the water pump of some water pump type liquid feed devices are easy the problem of being corroded and shortening the working life.
A kind of dialysis concentrate pressure stabilizing liquid-supplying system, including control system, liquid storing barrel and respectively by respective pipeline with
Feeder, feeding device, liquid storing barrel stable-pressure device, pressure stabilizing liquid feed device and the pumping equipment of the liquid storing barrel connection, institute
State control system and the feeder, the feeding device, the liquid storing barrel stable-pressure device, the pressure stabilizing liquid feed device and
The pumping equipment electrical connection;
The feeder includes gas supply filter, speed regulation air pump, intake valve, gas supply check valve and air supply pipe, the confession
Air filter, the speed regulation air pump, the intake valve and the gas supply check valve by the air supply pipe connect after with the storage
The connection of liquid bucket;
The feeding device includes inlet valve and inlet tube, described in the inlet valve is arranged in and is connected to the liquid storing barrel
On inlet tube;
The liquid storing barrel stable-pressure device includes liquid storing barrel pressure detector, breather valve, proportioning valve, liquid storing barrel relief valve,
One pressure stabilizing tracheae and the second pressure stabilizing tracheae, the liquid storing barrel pressure detector are arranged on the liquid storing barrel to detect the liquid storage
The air pressure inside of bucket, the proportioning valve and the liquid storing barrel relief valve are composed in series pressure stabilizing machine by the first pressure stabilizing tracheae
Structure, the pressure stabilizing mechanism is with the breather valve by being connected to after the second pressure stabilizing tracheae parallel connection with the liquid storing barrel;
The pressure stabilizing liquid feed device includes feed flow check valve, liquid supply pressure detector and liquid supply pipe, the feed flow check valve
It is connected to after being connected with liquid supply pressure detector by the liquid supply pipe with the liquid storing barrel;
The pumping equipment includes liquid storing barrel tapping valve, feed flow tapping valve, the first drain pipe and the second drain pipe;The storage
Liquid bucket tapping valve is arranged on first drain pipe, and the feed flow tapping valve is arranged on second drain pipe;Described
One drain pipe is directly connected to the liquid storing barrel or first drain pipe is connected to and on feed flow direction with the liquid supply pipe
First drain pipe is located at the upstream of the feed flow check valve;Second drain pipe is connected to and in feed flow with the liquid supply pipe
Second drain pipe is located at the downstream of the feed flow check valve on direction.
The intake valve is solenoid valve or motor-driven valve in one of the embodiments,.
The gas supply filter includes primary filter and fine filter in one of the embodiments, in air inlet side
The primary filter is arranged before the fine filter upwards.
The feeder further includes gas supply relief valve, the gas supply on airintake direction in one of the embodiments,
Relief valve is arranged after the gas supply check valve.
The speed regulation air pump and the intake valve have multiple respectively and correspond, one in one of the embodiments,
The speed regulation air pump and intake valve one group of inlet control mechanism in series, inlet control mechanism described in multiple groups is simultaneously
Connection.
In one of the embodiments, the speed regulation air pump and the intake valve respectively there are two.
The liquid storing barrel stable-pressure device further includes liquid storing barrel air filter, the liquid storage in one of the embodiments,
Bucket air filter is connected with the breather valve by the second pressure stabilizing tracheae.
A kind of hemodialysis apparatus, it is described including haemodialysis control unit and the dialysis concentrate pressure stabilizing liquid-supplying system
Pressure stabilizing liquid feed device is connect with the haemodialysis control unit.
A kind of dialysis concentrate pressure stabilizing feed liquid method, using the dialysis concentrate pressure stabilizing liquid-supplying system, including it is following
Step:
The control system controls the speed regulation air pump and intake valve opening admits air into the liquid storing barrel, works as institute
When stating liquid supply pressure detector and detecting that liquid supply pressure reaches liquid supply pressure setting value, the control system controls the speed regulation gas
Pump and the intake valve are closed, and it is saturating that concentrate flows into external blood by the liquid supply pipe under the liquid supply pressure setting value
Analysis machine;
During feed flow, when the liquid supply pressure detector detects liquid supply pressure lower than the liquid supply pressure setting value
When, the control system controls the speed regulation air pump and the intake valve is opened, and the control system passes through the liquid storing barrel pressure
The real-time pressure of real-time pressure signal and liquid supply pressure detector feedback feed flow in the liquid storing barrel of force detector feedback
Force signal controls the switch of the speed for adjusting the speed air pump and start and stop and the intake valve, stablizes liquid supply pressure described
Liquid supply pressure setting value;
When the liquid level in the liquid storing barrel is lower than setting value, the control system controls the inlet valve opening and is mended
Liquid, the control system adjust the aperture of the proportioning valve and the vent pressure of the liquid storing barrel relief valve, adjust discouraged big
It is small, to realize the stabilization of liquid supply pressure when fluid infusion;When the liquid level in the liquid storing barrel reaches setting value, the control system
The inlet valve is controlled to close.
The dialysis concentrate pressure stabilizing feed liquid method is further comprising the steps of in one of the embodiments:
When the liquid storing barrel needs drain, the control system controls the liquid storing barrel tapping valve, the speed regulation air pump
It is opened with the intake valve, to the liquid storing barrel inflating pressure to drain pressure set points, after the completion of the liquid storing barrel drain, institute
It states control system and controls the liquid storing barrel tapping valve, the speed regulation air pump and intake valve closing;
When the pressure stabilizing liquid feed device needs drain, the control system controls the feed flow tapping valve, the speed regulation
Air pump and the intake valve are opened, to the liquid storing barrel inflating pressure to the drain pressure set points, when the pressure stabilizing feed flow
After the completion of the liquid supply pipe drain of device, the control system controls the feed flow tapping valve, the speed regulation air pump and described
Intake valve is closed.
Compared with prior art, the invention has the following advantages:
Dialysis concentrate pressure stabilizing liquid-supplying system provided by the invention and hemodialysis apparatus, in feed flow, by control system
The switch of control speed regulation air pump and intake valve, when needing fluid infusion, control system controls ratio valve opening and liquid storing barrel relief valve
Vent pressure realize pressure stabilizing feed flow to keep pressure stabilizing state in liquid storing barrel.Entire feed flow process, air pump and concentrate are
It is non-contacting, corrosion is concentrated so as to avoid pump housing contact stain concentrate and the pump housing and shortens pump housing service life
Problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of dialysis concentrate pressure stabilizing liquid-supplying system;
The structural schematic diagram of the dialysis concentrate pressure stabilizing liquid-supplying system of mono- embodiment of Fig. 2;
Fig. 3 is the structural schematic diagram of the hemodialysis apparatus containing dialysis concentrate pressure stabilizing liquid-supplying system shown in FIG. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1 and Figure 2, the dialysis concentrate pressure stabilizing liquid-supplying system 100 of an embodiment, including (figure is not for control system
Show), liquid storing barrel 110 and the feeder 120 being connected to liquid storing barrel 110 by respective pipeline respectively, feeding device 130, store up
Liquid bucket stable-pressure device 140, pressure stabilizing liquid feed device 150 and pumping equipment 160.Control system and feeder 120, feeding device
130, liquid storing barrel stable-pressure device 140, pressure stabilizing liquid feed device 150 and pumping equipment 160 are electrically connected.
Wherein, feeder 120 includes gas supply filter 121, speed regulation air pump 122, intake valve 123, gas supply check valve 124
With air supply pipe 125, gas supply filter 121, speed regulation air pump 122, intake valve 123 and gas supply check valve 124 are gone here and there by air supply pipe 125
It is connected to after connection with liquid storing barrel 110.Gas supply filter 121 is used to be filtered the air for entering liquid storing barrel 110.Adjust the speed air pump
122 be gas supply power resources, and the work of the cooperation speed regulation air pump 122 of intake valve 123 controls the on-off of corresponding air supply pipe 125.Gas supply
Check valve 124 is used to prevent the reverse irrigation of compressed air in liquid storing barrel 110, causes stress shakiness.
Feeding device 130 includes inlet valve 131 and inlet tube 132, and inlet valve 131, which is arranged in, to be connected to liquid storing barrel 110
On inlet tube 132.
110 stable-pressure device of liquid storing barrel includes that liquid storing barrel pressure detector 141, breather valve 142, proportioning valve 143, liquid storing barrel are let out
Pressure valve 144, the first pressure stabilizing tracheae 145 and the second pressure stabilizing tracheae 146.Wherein, liquid storing barrel pressure detector 141 is arranged in liquid storing barrel
The air pressure inside of liquid storing barrel 110 is detected on 110, proportioning valve 143 and liquid storing barrel relief valve 144 pass through the first pressure stabilizing tracheae 145
It is composed in series pressure stabilizing mechanism, pressure stabilizing mechanism is with breather valve 142 by being connected to after 146 parallel connection of the second pressure stabilizing tracheae with liquid storing barrel 110.
Liquid storing barrel pressure detector 141 is used to detect the air pressure in liquid storing barrel 110, to the real-time pressure of control system feedback liquid storing barrel 110
Force value.Breather valve 142 is used to control the on-off of liquid storing barrel 110 and outside air.Proportioning valve 143 and liquid storing barrel relief valve 144 are used
Stablize the air pressure inside of liquid storing barrel 110 in cooperating in 110 deflation course of liquid storing barrel.
Pressure stabilizing liquid feed device 150 includes feed flow check valve 151, liquid supply pressure detector 152 and liquid supply pipe 153, feed flow list
It is connected to after being connected to valve 151 and liquid supply pressure detector 152 by liquid supply pipe 153 with liquid storing barrel 110.The external blood of liquid supply pipe 153
Saturating room 200 carries out feed flow to it.Feed flow check valve 151 is used to prevent the refluence of conveying liquid.Liquid supply pressure detector 152 is used for
Liquid supply pressure is detected, liquid supply pressure is fed back to control system, control system adjusts the speed of air pump according to the pressure value of feedback
On-off, to realize constant-pressure liquid supply.
Pumping equipment 160 includes liquid storing barrel tapping valve 161, feed flow tapping valve 162, the first drain pipe 163 and the second drain
Pipe 164, liquid storing barrel tapping valve 161 are arranged on the first drain pipe 163, and feed flow tapping valve 162 is arranged in the second drain pipe 164
On;First drain pipe 163 is directly connected to liquid storing barrel 110 or the first drain pipe 163 is connected to and in feed flow with liquid supply pipe 153
The first drain pipe 163 is located at the upstream of feed flow check valve 151 on direction;Second drain pipe 164 is connected to and is being supplied with liquid supply pipe 153
The second drain pipe 164 is located at the downstream of feed flow check valve 151 on liquid direction.Liquid storing barrel tapping valve 161 is for controlling liquid storing barrel 110
Draining.Feed flow tapping valve 162 is used to control the draining of pressure stabilizing liquid feed device 150.
Optionally, intake valve 123 can be but not limited to solenoid valve or motor-driven valve.In a specific embodiment, into
Air valve 123 is solenoid valve.
In an alternative embodiment, adjusting the speed air pump 122 and intake valve 123 has multiple respectively and corresponds, one
123 in series one groups of inlet control mechanisms of air pump 122 and an intake valve are adjusted the speed, multiple groups inlet control mechanism is in parallel.Speed regulation
Air pump 122 is gas supply power resources, and it is negative to reduce air pump continuous work by switching working mode in turn for multiple groups inlet control mechanism
Lotus, to improve air pump service life, and adjusting the speed air pump 122 has one to break down, remaining inlet control mechanism can be connect
Temporary substitute is made, to realize the uninterrupted feed flow of liquid feed device.Multiple intake valves 123 are respectively cooperating with corresponding 122 work of speed regulation air pump
Make, realizes the on-off of the air supply pipe 125 of corresponding speed regulation air pump 122.In a specific embodiment, adjust the speed air pump 122 and into
Air valve 123 respectively there are two and correspond, the 123 in series one groups of air inlet controls of a speed regulation air pump 122 and an intake valve
Mechanism processed, two groups of inlet control mechanisms are in parallel.
In an alternative embodiment, gas supply filter 121 includes primary filter 1212 and fine filter 1214,
Primary filter 1212 is arranged before fine filter 1214 on airintake direction.In a specific embodiment, primary
The air inlet of speed regulation air pump 122 is arranged in filter 1212, plays gas coarse filtration function;The setting of fine filter 1214 is being stored up
The air inlet of liquid bucket 110, completes the fine filtering of air, to guarantee the cleaning into 110 gas of liquid storing barrel.
In an alternative embodiment, feeder 120 further includes gas supply relief valve 126, is supplied on airintake direction
Relief valve 126 is arranged after supplying check valve 124.Gas supply relief valve 126 plays the role of safety relief, when liquid storing barrel 110
When hypertonia, control system control gas supply relief valve 126 presses the gas of the safety relief pressure venting liquid storing barrel 110 of setting,
Prevent the accidents such as explosion.
Optionally, liquid storing barrel pressure detector 141, liquid supply pressure detector 152 may each be but be not limited to air pressure probe
Or baroceptor.In a specific embodiment, liquid storing barrel pressure detector 141 is air pressure probe, liquid supply pressure detection
Device 152 is baroceptor.
In an alternative embodiment, liquid storing barrel stable-pressure device 140 further includes liquid storing barrel air filter 147, liquid storage
Bucket air filter 147 is connected with breather valve 142 by pressure stabilizing tracheae 145.Liquid storing barrel air filter 147 is for working as breather valve
When 142 opening, filtering enters the gas of liquid storing barrel 110.
In an alternative embodiment, liquid storing barrel 110 is provided with chlorination equipment (not shown), for liquid storing barrel 110
In concentrate carry out sterilizing.Optionally, chlorination equipment can be but not limited to ultraviolet radiator, ozone generator and microwave
One of sterilizer is a variety of.In a specific embodiment, liquid storing barrel 110 is internally provided with ultraviolet radiator.
In an alternative embodiment, liquid storing barrel 110 be arranged in be provided with liquid level sensor (not shown).Further,
Optionally, which is electrically connected to the control system.
Further, as shown in figure 3, present embodiment also provides a kind of hemodialysis apparatus 300, including haemodialysis control unit
310 and dialysis concentrate pressure stabilizing liquid-supplying system 100, pressure stabilizing liquid feed device 150 is connect with haemodialysis control unit 310.
Further, in an alternative embodiment, hemodialysis apparatus further includes concentrate liquid dispensing device 320, feed liquor
Device 130 is connect with concentrate liquid dispensing device 320.
Further, present embodiment also provides a kind of pressure stabilizing feed liquid method of concentrate pressure stabilizing liquid-supplying system 100 of dialysing,
The following steps are included:
Control system control speed regulation air pump 122 and the opening of intake valve 123 admit air into liquid storing barrel 110, work as liquid supply pressure
When detector 152 detects that liquid supply pressure reaches liquid supply pressure setting value, control system control speed regulation air pump 122 and intake valve
123 close, and concentrate flows into external haemodialysis control unit by liquid supply pipe 153 under liquid supply pressure setting value;
During feed flow, when liquid supply pressure detector 152 detects liquid supply pressure lower than liquid supply pressure setting value, control
System control speed regulation air pump 122 and intake valve 123 processed are opened, and control system passes through the storage that liquid storing barrel pressure detector 141 is fed back
Real-time pressure signal and liquid supply pressure detector 152 in liquid bucket 110 feed back the real-time pressure signal of feed flow, control speed regulation air pump
The switch of 122 speed and start and stop and intake valve 123 stablizes liquid supply pressure in liquid supply pressure setting value;
When the liquid level in liquid storing barrel 110 is lower than setting value, control system controls inlet valve and opens progress fluid infusion, control system
System adjusts the aperture of proportioning valve 143 and the vent pressure of liquid storing barrel relief valve 144, discouraged size is adjusted, to realize fluid infusion
When liquid supply pressure stabilization;When the liquid level in liquid storing barrel 110 reaches setting value, control system controls inlet valve and closes.
In the embodiment for having multiple groups inlet control mechanism, control system controls the rotation of each group inlet control mechanism and replaces work
Make.
In an alternative embodiment, dialyse concentrate pressure stabilizing liquid-supplying system 100 pressure stabilizing feed liquid method, further include with
Lower step:
When liquid storing barrel 110 needs drain, control system controls liquid storing barrel tapping valve 161, speed regulation air pump 122 and intake valve
123 open, to 110 inflating pressure of liquid storing barrel to drain pressure set points, after the completion of 110 drain of liquid storing barrel, and control system control
Liquid storing barrel tapping valve 161, speed regulation air pump 122 and intake valve 123 are closed;
When pressure stabilizing liquid feed device 150 needs drain, control system control feed flow tapping valve 162, speed regulation air pump 122 and into
Air valve 123 is opened, to 110 inflating pressure of liquid storing barrel to drain pressure set points, when the liquid supply pipe 153 of pressure stabilizing liquid feed device 150
After the completion of drain, control system controls feed flow tapping valve 162, speed regulation air pump 122 and intake valve 123 and closes.
In an alternative embodiment, dialyse concentrate pressure stabilizing liquid-supplying system 100 pressure stabilizing feed liquid method, further include with
Lower step:
When concentrate pressure stabilizing liquid-supplying system 100 of dialysing needs pressure release, control system controls breather valve 142 and opens, at this moment
Liquid storing barrel 110 is in communication with the outside, compressed air discharge, dialyse concentrate pressure stabilizing liquid-supplying system 100 internal pressure just with the external world
It is identical.
Dialysis concentrate pressure stabilizing liquid-supplying system 100 provided by the invention and hemodialysis apparatus 300, in feed flow, by controlling
The switch of system control speed regulation air pump 122 and intake valve 123 processed, when needing fluid infusion, control system control proportioning valve 143 is opened
The vent pressure of degree and liquid storing barrel relief valve 144 realizes pressure stabilizing feed flow to keep pressure stabilizing state in liquid storing barrel 110.It is entire to supply
Liquid process, air pump and concentrate be it is non-contacting, so as to avoid pump housing contact stain concentrate and the pump housing be concentrated liquid corruption
The problem of losing and shortening pump housing service life.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of dialysis concentrate pressure stabilizing liquid-supplying system, which is characterized in that pass through including control system, liquid storing barrel and respectively
Feeder, feeding device, liquid storing barrel stable-pressure device, pressure stabilizing liquid feed device and the row that respective pipeline is connected to the liquid storing barrel
Liquid device, the control system and the feeder, the feeding device, the liquid storing barrel stable-pressure device, the pressure stabilizing supply
Liquid device and pumping equipment electrical connection;
The feeder includes gas supply filter, speed regulation air pump, intake valve, supplies check valve and air supply pipe, described to supply
Filter, the speed regulation air pump, the intake valve and the gas supply check valve by the air supply pipe connect after with the liquid storing barrel
Connection;
The feeding device includes inlet valve and inlet tube, and the feed liquor being connected to the liquid storing barrel is arranged in the inlet valve
Guan Shang;
The liquid storing barrel stable-pressure device includes liquid storing barrel pressure detector, breather valve, proportioning valve, liquid storing barrel relief valve, first steady
Air pipe and the second pressure stabilizing tracheae, the liquid storing barrel pressure detector are arranged on the liquid storing barrel to detect the liquid storing barrel
Air pressure inside, the proportioning valve and the liquid storing barrel relief valve are composed in series pressure stabilizing mechanism by the first pressure stabilizing tracheae, institute
Pressure stabilizing mechanism is stated with the breather valve by being connected to after the second pressure stabilizing tracheae parallel connection with the liquid storing barrel;
The pressure stabilizing liquid feed device includes feed flow check valve, liquid supply pressure detector and liquid supply pipe, the feed flow check valve and confession
Hydraulic force detector is connected to after being connected by the liquid supply pipe with the liquid storing barrel;
The pumping equipment includes liquid storing barrel tapping valve, feed flow tapping valve, the first drain pipe and the second drain pipe;The liquid storing barrel
Tapping valve is arranged on first drain pipe, and the feed flow tapping valve is arranged on second drain pipe;The first row
Liquid pipe is directly connected to the liquid storing barrel or first drain pipe is connected to the liquid supply pipe and described on feed flow direction
First drain pipe is located at the upstream of the feed flow check valve;Second drain pipe is connected to the liquid supply pipe and in feed flow direction
Upper second drain pipe is located at the downstream of the feed flow check valve.
2. as described in claim 1 dialysis concentrate pressure stabilizing liquid-supplying system, which is characterized in that the intake valve be solenoid valve or
Motor-driven valve.
3. dialysis concentrate pressure stabilizing liquid-supplying system as described in claim 1, which is characterized in that the gas supply filter includes just
Grade filter and fine filter, the primary filter is arranged before the fine filter on airintake direction.
4. dialysis concentrate pressure stabilizing liquid-supplying system as described in claim 1, which is characterized in that the feeder further includes supplying
Gas relief valve, the gas supply relief valve is arranged after the gas supply check valve on airintake direction.
5. as described in claim 1 dialysis concentrate pressure stabilizing liquid-supplying system, which is characterized in that the speed regulation air pump and it is described into
Air valve has multiple respectively and corresponds, a speed regulation air pump and intake valve one group of air inlet control in series
Mechanism, inlet control mechanism described in multiple groups are in parallel.
6. as claimed in claim 5 dialysis concentrate pressure stabilizing liquid-supplying system, which is characterized in that the speed regulation air pump and it is described into
Air valve respectively there are two.
7. dialysis concentrate pressure stabilizing liquid-supplying system as described in any one of claims 1 to 6, which is characterized in that the liquid storing barrel
Stable-pressure device further includes liquid storing barrel air filter, and the liquid storing barrel air filter and the breather valve are steady by described second
Air pipe series connection.
8. a kind of hemodialysis apparatus, which is characterized in that including haemodialysis control unit and as described in any one of claim 1~7
Dialysis concentrate pressure stabilizing liquid-supplying system, the pressure stabilizing liquid feed device connect with the haemodialysis control unit.
9. a kind of dialysis concentrate pressure stabilizing feed liquid method, which is characterized in that using as described in any one of claims 1 to 7
Analyse concentrate pressure stabilizing liquid-supplying system, comprising the following steps:
The control system controls the speed regulation air pump and intake valve opening admits air into the liquid storing barrel, when the confession
When hydraulic force detector detects that liquid supply pressure reaches liquid supply pressure setting value, the control system control the speed regulation air pump with
The intake valve is closed, and concentrate flows into external haemodialysis by the liquid supply pipe under the liquid supply pressure setting value
Machine;
During feed flow, when the liquid supply pressure detector detects liquid supply pressure lower than the liquid supply pressure setting value,
The control system controls the speed regulation air pump and the intake valve is opened, and the control system is visited by the liquid storing barrel pressure
Survey the real-time pressure letter of the real-time pressure signal and liquid supply pressure detector feedback feed flow in the liquid storing barrel of device feedback
Number, the switch of the speed for adjusting the speed air pump and start and stop and the intake valve is controlled, stablizes liquid supply pressure in the feed flow
Pressure set points;
When the liquid level in the liquid storing barrel is lower than setting value, the control system controls the inlet valve and opens progress fluid infusion,
The control system adjusts the aperture of the proportioning valve and the vent pressure of the liquid storing barrel relief valve, adjusts discouraged size,
The stabilization of liquid supply pressure when to realize fluid infusion;When the liquid level in the liquid storing barrel reaches setting value, the control system control
The inlet valve is made to close.
10. dialysis concentrate pressure stabilizing feed liquid method as claimed in claim 9, which is characterized in that further comprising the steps of:
When the liquid storing barrel needs drain, the control system controls the liquid storing barrel tapping valve, the speed regulation air pump and institute
Intake valve opening is stated, to the liquid storing barrel inflating pressure to drain pressure set points, after the completion of the liquid storing barrel drain, the control
System processed controls the liquid storing barrel tapping valve, the speed regulation air pump and the intake valve and closes;
When the pressure stabilizing liquid feed device needs drain, the control system controls the feed flow tapping valve, the speed regulation air pump
It is opened with the intake valve, to the liquid storing barrel inflating pressure to the drain pressure set points, when the pressure stabilizing liquid feed device
The liquid supply pipe drain after the completion of, the control system controls the feed flow tapping valve, the speed regulation air pump and the air inlet
Valve is closed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711064220.0A CN109745588B (en) | 2017-11-02 | 2017-11-02 | Dialysis concentrated solution pressure stabilizing and supplying system and pressure stabilizing and supplying method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711064220.0A CN109745588B (en) | 2017-11-02 | 2017-11-02 | Dialysis concentrated solution pressure stabilizing and supplying system and pressure stabilizing and supplying method thereof |
Publications (2)
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