CN112517520A - Vacuum cleaning system and cleaning method - Google Patents
Vacuum cleaning system and cleaning method Download PDFInfo
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- CN112517520A CN112517520A CN202011258158.0A CN202011258158A CN112517520A CN 112517520 A CN112517520 A CN 112517520A CN 202011258158 A CN202011258158 A CN 202011258158A CN 112517520 A CN112517520 A CN 112517520A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 224
- 238000010407 vacuum cleaning Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 212
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 239000008399 tap water Substances 0.000 claims abstract description 46
- 235000020679 tap water Nutrition 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 230000001502 supplementing effect Effects 0.000 claims abstract description 10
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims abstract description 3
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 claims abstract description 3
- 239000011229 interlayer Substances 0.000 claims description 47
- 239000007791 liquid phase Substances 0.000 claims description 11
- 239000012071 phase Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 21
- 230000007547 defect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Cleaning By Liquid Or Steam (AREA)
Abstract
A vacuum cleaning system and a cleaning method belong to the field of medical equipment. Including washing tank (29), its characterized in that: an air bubble generator (24) is arranged in the inner cavity of the cleaning tank (29), a steam heating unit, a pure water circulating unit, a tap water cooling unit, a vacuumizing unit and an air supplementing unit which are controlled by a controller are arranged outside the cleaning tank (29), and the method further comprises the following steps: step a, preheating; step b, injecting pure water and heating by steam; c, judging the water temperature of the cleaning tank for the first time; step d, vacuumizing; step e, judging the water level; f, judging the water temperature of the cleaning tank for the second time; step g, heating pure water; step h, collecting condensed water; step i, reducing the water temperature of a water tank; step j, pulse cleaning; through the vacuum cleaning system and the cleaning method, the pulsating cleaning is realized in the cleaning tank, the cleaning effect is improved, and the defect of uneven water temperature in the cleaning tank is overcome.
Description
Technical Field
A vacuum cleaning system and a cleaning method belong to the field of medical equipment.
Background
The vacuum cleaning machine is common cleaning equipment and widely applied to various fields such as medical treatment, a cleaning groove is arranged in the vacuum cleaning machine, and articles to be cleaned are placed in the cleaning groove for cleaning. In the vacuum cleaner among the prior art, the washing tank mainly adopts the compressive strength that the panel beating welded mode promoted the inner shell, and soaks the formula washing and lead to the internal water yield of cell great, and this can cause the water intensification link consuming time longer, and can cause the washing tank temperature to reduce at follow-up vacuum cleaning ring festival, influences the cleaning performance. Moreover, the existing vacuum cleaning machine adopts a single water circulation heating means when heating, and the dead angle with poor flowability in the tank can cause the water temperature of the cleaning tank to be low, so that the uniformity of the water temperature of the cleaning tank is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the vacuum cleaning system and the cleaning method have the advantages that through the arrangement of the bubble generator, pulsating cleaning is realized in the cleaning tank, the cleaning effect is improved, and the defect of uneven water temperature in the cleaning tank is overcome.
The technical scheme adopted by the invention for solving the technical problems is as follows: this vacuum cleaning system, including the washing tank, its characterized in that: the inner cavity of the cleaning tank is provided with a bubble generator, the outer part of the cleaning tank is provided with an interlayer, the outer part of the cleaning tank is provided with a steam heating unit, a pure water circulating unit, a tap water cooling unit, a vacuumizing unit and an air supplementing unit, and the inner cavity of the cleaning tank is also provided with a controller for controlling the steam heating unit, the pure water circulating unit, the tap water cooling unit, the vacuumizing unit and the air supplementing unit;
the output end of the pure water circulating unit is connected with a cooling medium channel of the heat exchanger, and pure water circulates between the cooling medium channel and the cleaning tank; one of the two output ends of the steam heating unit is connected to the interlayer outside the cleaning tank, and the other output end of the steam heating unit is connected to the water tank through a high-temperature medium channel of the heat exchanger; the input end of the vacuumizing unit is communicated with the inner cavity of the cleaning tank, the output end of the vacuumizing unit is connected into the water tank through a high-temperature medium channel of the condenser, one of the two output ends of the tap water cooling unit is connected into the water tank, and the other output end of the tap water cooling unit is connected into the water tank through a low-temperature medium channel of the condenser; the input end of the air supply unit is connected with the outside air, and the output end of the air supply unit enters the cleaning tank and is connected with the bubble generator.
Preferably, among the steam heating unit, steam pipeline one end is connected the steam vapour source, and the other end is connected respectively with the one end of steam heating valve and intermediate layer admission valve, the other end and the washing tank of intermediate layer admission valve are connected, the high temperature medium entry linkage of the other end heat exchanger of steam heating valve, the high temperature medium export of heat exchanger inserts in the water tank through first trap.
Preferably, in the pure water circulation unit, one end of a pure water pipeline is connected with a pure water source, the other end of the pure water pipeline is connected with one end of a pure water valve, the other end of the pure water valve is connected with a low-temperature medium inlet of a heat exchanger, and a low-temperature medium outlet of the heat exchanger is connected to an inner cavity of the cleaning tank;
a pipeline is led out of the bottom of the self-cleaning tank and connected with an inlet of a circulating pump, an outlet of the circulating pump is connected with one interface of a three-way actuator, one of the other two interfaces of the three-way actuator is connected into the water tank, and the other one of the other two interfaces of the three-way actuator is connected with a low-temperature medium inlet of the heat exchanger through a first one-way valve.
Preferably, in the tap water cooling unit, one end of the tap water pipe is connected with a tap water source, the other end of the tap water pipe is simultaneously connected with a tap water valve of the condenser and one end of a cooling tap water valve, and the other end of the cooling tap water valve is connected to the water tank through a second flow balance valve; the other end of the tap water valve of the condenser is connected with the inlet of the low-temperature medium of the condenser after being connected with the first flow balance valve through a pipeline, and the outlet of the low-temperature medium of the condenser is connected with the water tank.
Preferably, in the vacuum pumping unit, a pipeline led out from the top of the cleaning tank is connected with a high-temperature medium inlet of a condenser, an outlet of the high-temperature medium of the condenser is connected with an inlet of a vacuum pump through a pipeline via a vacuum valve, and an outlet of the vacuum pump is connected into a water tank.
Preferably, the air supplementing unit comprises an air filter, an outlet of the air filter is respectively connected with one end of the gas-phase air return valve and one end of the liquid-phase air return valve, and the other end of the gas-phase air return valve is connected into the cleaning tank; the other end of the liquid phase air return valve enters the inner cavity of the cleaning tank and is connected with the air inlet end of the bubble generator.
Preferably, the outside of washing tank be provided with washing tank inner shell and washing tank shell, form between washing tank inner shell and the washing tank shell the intermediate layer.
Preferably, the bubble generator comprises an air inlet joint and two bubble generating tubes symmetrically arranged on two sides of the air inlet joint, and a plurality of air outlets are uniformly formed in the tube walls of the bubble generating tubes.
A cleaning method of a vacuum cleaning system is characterized in that: the method comprises the following steps:
step a, in a standby state, a controller controls an output end of a steam heating unit to be opened, steam is introduced into an interlayer of a cleaning tank, and the cleaning tank is preheated;
b, the controller controls the pure water circulating unit to start, and pure water enters the cleaning tank; when pure water enters the cleaning tank, the controller controls the other output end of the steam heating unit to be opened, and steam enters the high-temperature medium channel of the heat exchanger to heat the pure water in the low-temperature medium channel;
c, judging whether the water temperature in the cleaning tank reaches a preset temperature or not by the controller, if so, controlling the steam heating unit to be closed by the controller, executing the step d, and if not, returning to execute the step b;
d, controlling the vacuumizing unit to work by the controller, and vacuumizing the cleaning tank to form negative pressure in the cleaning tank;
e, the controller judges whether the water level in the cleaning tank reaches a preset water level, if so, the controller controls the pure water circulating unit to be closed, and if not, the controller returns to execute the step b;
step f, the controller judges whether the water temperature in the cleaning tank reaches the preset temperature again, if so, the step j is executed, and if not, the steps g to i are executed in sequence;
step g, the controller controls the pure water circulating unit to work, so that pure water in the cleaning tank circulates in the low-temperature medium channel of the heat exchanger and the cleaning tank, and simultaneously controls the steam heating unit to work, and the pure water is circularly heated in the circulating process of the pure water through the heat exchanger;
step h, collecting condensed water by a water tank in the process of circulating heating;
step i, the controller judges whether the water temperature in the water tank exceeds a preset water temperature, if so, the controller controls the running water cooling unit to work, and running water is injected into the water tank to reduce the water temperature in the water tank;
and j, controlling the vacuumizing unit to work continuously by the controller, then starting the air supplementing unit, and enabling external air to enter the cleaning tank and be output from the bubble generator.
Compared with the prior art, the invention has the beneficial effects that:
1. in the vacuum cleaning system and the cleaning method, the bubble generator is arranged in the cleaning tank, the pressure difference between the inside and the outside of the cleaning tank is utilized in the cleaning process, and when air entering the cleaning tank through the air supplementing unit flows out from the bubble generator, the pulsating cleaning is realized in the cleaning tank through the formed bubbles, so that the cleaning effect is improved. Meanwhile, bubbles are boiled in the cleaning tank, so that the defect of uneven water temperature in the cleaning tank is overcome.
2. Set up the intermediate layer in the washing tank outside to let in high temperature steam in the intermediate layer, preheat the washing tank under the state of standby, at cleaning in-process auxiliary heating, improved heating efficiency.
3. In the process of injecting the pure water, the cleaning tank is vacuumized, the pure water is accelerated to enter, and the water injection efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a vacuum cleaning system.
FIG. 2 is a perspective view of the cleaning tank of embodiment 1 of the vacuum cleaning system.
Figure 3 is a front view of a vacuum cleaning system cleaning tank embodiment 1.
Fig. 4 is a sectional view taken along line a-a in fig. 3.
Fig. 5 is an enlarged view of a portion a in fig. 4.
FIG. 6 is a schematic diagram of a bubble generator of the vacuum cleaning system.
FIG. 7 is a flow chart of a method for cleaning a vacuum cleaning system.
Figure 8 is a perspective view of the vacuum cleaning system cleaning tank embodiment 2.
Figure 9 is a front view of the vacuum cleaning system cleaning tank embodiment 2.
Fig. 10 is a sectional view taken along line B-B in fig. 8.
Wherein: 1. a tap water pipeline 2, a pure water pipeline 3, a pure water valve 4, a first one-way valve 5, a steam pipeline 6, a steam heating valve 7, a first drain valve 8, an interlayer air inlet valve 9, an air filter 10, a gas phase air return valve 11, a cleaning tank liquid level sensor 12, a condenser 13, an evacuation valve 14, a condenser tap water valve 15, a first flow balance valve 16, a vacuum pump 17, a second one-way valve 18, a cooling tap water valve 19, a second flow balance valve 20, a water tank 21, a water tank liquid level sensor 22, a water tank temperature sensor 23, a liquid phase air return valve 24, a bubble generator 25, a circulating pump 26, a three-way actuator 27, a second drain valve 28, a cleaning tank temperature sensor 29, a cleaning tank 30, a cleaning tank pressure sensor 31, a safety valve 32, an interlayer pressure sensor 33, a steam, The heat exchanger 34, a cleaning tank outer shell 35, a cleaning tank joint 36, a cleaning tank inner shell 37, a sealing plate 38, a bubble generating pipe 39, an air outlet 40, an air inlet joint 41, a communication branch pipe 42, a communication main pipe 43, a joint 44 and reinforcing ribs.
Detailed Description
Fig. 1 to 7 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 10.
Example 1:
as shown in FIG. 1, a vacuum cleaning system includes a cleaning tank 29, and a bubble generator 24 is installed in the cleaning tank 29.
As shown in fig. 2, the cleaning tank 29 has a rectangular shape with both ends open, and a sealing door (not shown) is provided at each of the both ends open. Referring to fig. 3 to 5, the outer shell of the cleaning tank 29 includes a cleaning tank inner shell 36 and a cleaning tank outer shell 34 fixed outside the cleaning tank inner shell 36, the cleaning tank outer shell 34 is a corrugated structure with a trapezoidal cross section, a part of end surface of the cleaning tank outer shell 34 is attached to and sealed and fixed to the outer wall of the cleaning tank inner shell 36, a plurality of interlayers are formed on the surface of the cleaning tank 36 at intervals between the other part of end surface and the outer wall of the cleaning tank inner shell 36, and the interlayers are arranged along the front-back direction.
Two closing plates 37 are respectively arranged at two ports of the cleaning tank 29, the closing plates 37 are fixed with the outer wall of the inner shell 36 of the cleaning tank through the interlayer, and the two closing plates 37 respectively close the interlayer from two ends. A plurality of cleaning tank connectors 35 are further arranged on the surface of the cleaning tank 29, one part of the cleaning tank connectors 35 is communicated with the interlayer outside the cleaning tank 29, and the other part of the cleaning tank connectors 35 is communicated with the inner cavity of the cleaning tank 29 after passing through the cleaning tank inner shell 36 and the cleaning tank outer shell 34.
The bubble generator 24 is disposed at the bottom of the inner cavity of the cleaning tank 29, as shown in fig. 6, the bubble generator 24 includes an air inlet joint 40 and two bubble generating tubes 38 symmetrically disposed at two sides of the air inlet joint 40, and a plurality of air outlets 39 are uniformly disposed on the tube walls of the bubble generating tubes 38. The piping for supplying the external air source is connected to the upper portion of the air inlet joint 40 after entering the interior of the wash bowl 29, and supplies air to the two bubble generating tubes 38 through the air inlet joint 40. One end of the bubble generating tube 38 is communicated with the inner cavity of the air inlet joint 40, and the other end is arranged in a snake-shaped reciprocating manner on the other symmetrical side and communicated with the inner cavity of the air inlet joint 40.
Referring to fig. 1, outside washing tub 29, washing tub pressure sensor 30, safety valve 31, washing tub temperature sensor 28, and interlayer pressure sensor 32, which are connected to the interlayer of washing tub 29, are connected through washing tub joint 35. A controller is also provided in the vacuum cleaning system, and a cleaning tank pressure sensor 30, a cleaning tank temperature sensor 28 and an interlayer pressure sensor 32 are connected to the controller.
A tap water line 1, a pure water line 2, and a steam line 5 are provided outside the cleaning tank 29. The tap water pipeline 1 is connected with one end of the condenser tap water valve 14 and one end of the cooling tap water valve 18, and the other end of the cooling tap water valve 18 is connected with the second flow balance valve 19 through a pipeline and then is connected into the water tank 20. A tank temperature sensor 22 is mounted on the outer wall of the tank 20, and a tank level sensor 21 is mounted on the inner wall of the tank 20. The tank temperature sensor 22 and the tank level sensor 21 are connected to the controller, which is connected to the condenser tap water valve 14 and the cooling tap water valve 18, and controls the on/off of the condenser tap water valve 14 and the cooling tap water valve 18. A drain opening is also provided in the side wall of the tank 20.
The other end of the condenser tap water valve 14 is connected with the first flow balance valve 15 through a pipeline and then connected to the inlet of the low-temperature medium of the condenser 12, and the outlet of the low-temperature medium of the condenser 12 is connected with the second one-way valve 17 through a pipeline and then connected to the water tank 20. The high-temperature medium inlet of the condenser 12 is connected with a cleaning tank joint 35 on the surface of the cleaning tank 29 through a pipeline and then is communicated with the inner cavity of the cleaning tank 29. The outlet of the high-temperature medium in the condenser 12 is connected to the inlet of a vacuum pump 16 after being connected to an evacuation valve 13 through a pipe. The outlet of the vacuum pump 16 is connected via a line to a water tank 20. The vacuum pump 16 is a water ring vacuum pump, and a water source is introduced into the vacuum pump 16 from the water tank 20 as a working fluid of the vacuum pump 16. The controller is connected to the evacuation valve 13 and the vacuum pump 16, and controls the evacuation valve 13 and the vacuum pump 16.
The pure water pipeline 2 is connected with one end of the pure water valve 3, and the other end of the pure water valve 3 is connected with the low-temperature medium inlet of the heat exchanger 33 through a pipeline. The low-temperature medium outlet of the heat exchanger 33 is connected with a cleaning tank joint 35 on the surface of the cleaning tank 29 through a pipeline and then communicated with the inner cavity of the cleaning tank 29. The bottom outlet pipeline of the self-cleaning tank 29 is connected with the inlet of the circulating pump 25, and the outlet of the circulating pump 25 is connected with one interface of the three-way actuator 26. One of the other two ports of the three-way actuator 26 is connected into the water tank 20, and the other port is connected with the low-temperature medium inlet of the heat exchanger 33 after being connected with the first one-way valve 4 through a pipeline. Another pipeline is led out from the interlayer at the bottom of the self-cleaning tank 29, connected with the second drain valve 27 and then connected into the water tank 20, and is used for discharging condensed water generated in the interlayer by steam. The controller is connected with the steam heating valve 6, the interlayer air inlet valve 8, the pure water valve 3, the circulating pump 25 and the three-way actuator 26, and the working state of the three-way actuator is controlled by the controller.
An air filter 9 is further arranged outside the cleaning tank 29, an outlet of the air filter 9 is respectively connected with one end of the gas phase air return valve 10 and one end of the liquid phase air return valve 23, and the other end of the gas phase air return valve 10 is connected with a cleaning tank joint 35 on the surface of the cleaning tank 29 and then is connected into an inner cavity of the cleaning tank 29. The other end of the liquid phase return valve 23 is connected to a cleaning tank joint 35 on the surface of the cleaning tank 29, and then is connected to the inner cavity of the cleaning tank 29 and is butted with the air inlet joint 40 of the bubble generator 24. Another pipeline is led out from the pipelines of the gas phase return valve 10 and the cleaning tank 29, the other end of the pipeline is connected into the inner cavity of the cleaning tank 29 through a cleaning tank joint 35 on the surface of the cleaning tank 29, a cleaning tank liquid level sensor 11 is arranged on the pipeline, and the cleaning tank liquid level sensor 11 is connected with the controller.
As shown in fig. 7, a cleaning method implemented by using the vacuum cleaning system includes the following steps:
in the standby state, the interlayer air inlet valve 8 is opened, the on-off state of the interlayer air inlet valve 8 is controlled by controlling the pressure value detected by the interlayer pressure sensor 32, a certain pressure value is kept in the interlayer outside the cleaning tank 29, and the cleaning tank 29 is preheated.
the controller controls the pure water valve 3 to be opened, and pure water enters the cleaning tank 29 through the pure water valve 3 and the low-temperature medium channel of the heat exchanger 33.
when pure water begins to enter the cleaning tank 29, the controller controls the steam heating valve 6 to be opened, high-temperature steam enters the high-temperature medium channel of the heat exchanger 33 through the steam heating valve 6, the pure water in the low-temperature medium channel is heated through the high-temperature steam, the heated steam is discharged into the water tank 20 through the first drain valve 7 after being output from the heat exchanger 33, and meanwhile, the interlayer air inlet valve 8 keeps an open state to assist in heating the pure water.
the controller judges whether the water temperature in the cleaning tank 29 reaches a preset temperature, if so, the controller controls the steam heating valve 6 and the interlayer air inlet valve 8 to be closed, and executes step 1005, and if not, returns to execute step 1003;
the controller controls the vacuum pump 16 to work, and simultaneously opens the evacuation valve 13 to vacuumize the interior of the cleaning tank 29, so that the interior of the cleaning tank 29 is in a negative pressure state, and pure water is accelerated to enter the cleaning tank 29;
the controller judges whether the water level in the cleaning tank 29 reaches a preset water level through the cleaning tank liquid level sensor 11, if so, the pure water valve 3 is closed and the step 1007 is executed, and if not, the step 1002 is executed;
the controller determines again whether the water temperature in the cleaning tank 29 reaches the preset temperature, if so, executes step 1012, and if not, sequentially executes steps 1008 to 1011.
the controller controls the circulating pump 25 to work and controls the three-way actuator 26 to act, and at the moment, the pure water in the cleaning tank 29 enters the low-temperature medium channel of the heat exchanger 33 through the three-way actuator 26 and the first one-way valve 4 under the action of the circulating pump 25, and the pure water is circularly heated through high-temperature steam in the high-temperature medium.
during the circulation heating process, the condensed water generated by the heat exchanger 33 is discharged into the water tank 20 through the first steam trap 7; and meanwhile, the condensed water generated in the interlayer is drained into the water tank 20 through the second drain valve 27, and the condensed water is collected by the water tank 20.
therefore, the temperature of the water in the water tank 20 gradually increases with the increase of the condensed water, the controller monitors the temperature of the water in the water tank 20 through the water tank temperature sensor 22, when the temperature of the water in the water tank 20 exceeds a set temperature, the controller controls the cooling tap water valve 18 to be opened, the tap water enters the water tank 20 through the cooling tap water valve 18 and the second flow balance valve 19, and the step 1007 is performed to reduce the temperature of the water in the water tank 20.
the controller controls the vacuum pump 16 to continue working, and simultaneously opens the evacuation valve 13 to keep a vacuum state with a certain pressure in the cleaning tank 29, and then controls the liquid phase return valve 23 to open, so that under the action of the pressure difference between the inside and the outside of the cleaning tank 29, the outside air rapidly enters the cleaning tank 29 through the air filter 9 and the liquid phase return valve 23 and is output from the bubble generator 24, a violent boiling phenomenon is formed in the cleaning tank 29, the water in the cleaning tank 29 is fully stirred, the uniformity of the water temperature in the cleaning tank 29 is ensured, and the articles in the cleaning tank 29 are subjected to pulsating cleaning.
The specific working process and working principle are as follows:
in the standby state, the interlayer air inlet valve 8 is opened, the on-off state of the interlayer air inlet valve 8 is controlled by controlling the pressure value detected by the interlayer pressure sensor 32, a certain pressure value is kept in the interlayer outside the cleaning tank 29, and the cleaning tank 29 is preheated. The controller controls the pure water valve 3 to be opened, and pure water enters the cleaning tank 29 through the pure water valve 3 and the low-temperature medium channel of the heat exchanger 33. When pure water begins to enter the cleaning tank 29, the controller controls the steam heating valve 6 to be opened, high-temperature steam enters the high-temperature medium channel of the heat exchanger 33 through the steam heating valve 6, the pure water in the low-temperature medium channel is heated through the high-temperature steam, the heated steam is discharged into the water tank 20 through the first drain valve 7 after being output from the heat exchanger 33, and meanwhile, the interlayer air inlet valve 8 keeps an open state to assist in heating the pure water.
The controller judges whether the water temperature in the cleaning tank 29 reaches a preset temperature, and if the water temperature does not reach the preset temperature, the pure water is continuously heated through the high-temperature steam return; if the preset water temperature is reached, the controller controls the steam heating valve 6 and the interlayer air inlet valve 8 to be closed. Then the controller controls the vacuum pump 16 to work, and simultaneously opens the evacuation valve 13 to perform the vacuum-pumping operation in the cleaning tank 29, so that the interior of the cleaning tank 29 is in a negative pressure state, and the pure water is accelerated to enter the cleaning tank 29. The controller judges whether the water level in the cleaning tank 29 reaches a preset water level through the cleaning tank liquid level sensor 11, if so, the pure water valve 3 is closed, the water injection in the cleaning tank 29 is stopped, and if not, the pure water valve 3 is kept open, and the water injection in the cleaning tank 29 is continued.
After the water level in the cleaning tank 29 reaches the preset water level, the controller judges whether the water temperature in the cleaning tank 29 reaches the preset temperature again, if the water temperature does not reach the preset water temperature, the controller controls the circulating pump 25 to work, and controls the three-way actuator 26 to act, at the moment, pure water in the cleaning tank 29 enters the low-temperature medium channel of the heat exchanger 33 through the three-way actuator 26 and the first one-way valve 4 under the action of the circulating pump 25, and the pure water is circularly heated through high-temperature steam in the high-temperature medium.
During the circulation heating process, the condensed water generated by the heat exchanger 33 is discharged into the water tank 20 through the first steam trap 7; and meanwhile, the condensed water generated in the interlayer is drained into the water tank 20 through the second drain valve 27, and the condensed water is collected by the water tank 20. The controller monitors the water temperature in the water tank 20 through the water tank temperature sensor 22, when the water temperature in the water tank 20 exceeds a set temperature, the controller controls the cooling tap water valve 18 to be opened, and tap water enters the water tank 20 through the cooling tap water valve 18 and the second flow balance valve 19 to reduce the water temperature in the water tank 20.
When the water temperature in the cleaning tank 29 reaches the preset water temperature, the controller controls the vacuum pump 16 to continue working, and simultaneously opens the evacuation valve 13 to keep the cleaning tank 29 in a vacuum state with a certain pressure, and then controls the liquid-phase return valve 23 to open, under the action of the pressure difference between the inside and the outside of the cleaning tank 29, the outside air rapidly enters the cleaning tank 29 through the air filter 9 and the liquid-phase return valve 23 and is output from the bubble generator 24, so that a violent boiling phenomenon is formed in the cleaning tank 29, the water in the cleaning tank 29 is fully stirred, the uniformity of the water temperature in the cleaning tank 29 is ensured, and the articles in the cleaning tank 29 are subjected to pulsating cleaning.
Example 2:
the present embodiment is different from the embodiment in that: this embodiment is different from the structure of cleaning tank 29 in embodiment 1.
As shown in fig. 8 to 10, the cleaning tank 29 of the present embodiment includes a cleaning tank inner shell 36, a plurality of ribs 44 are sequentially sleeved on an outer ring of the cleaning tank outer shell 34 along a length direction of the cleaning tank 29, the ribs 44 are hollow structures, two side edges thereof are fixed to an outer wall of the cleaning tank outer shell 34, and an inner cavity thereof forms a plurality of independent interlayers outside the cleaning tank outer shell 34.
The surface of the cleaning tank 29 is also provided with a plurality of cleaning tank joints 35, one part of the cleaning tank joint 35 is positioned on the surface of the reinforcing rib 44 and communicated with the interlayer, and the other part is positioned in the gap between two adjacent reinforcing ribs 44 and communicated with the inner cavity of the cleaning tank 29.
Two sets of joint assemblies are arranged at the position of the diagonal line outside the cleaning tank 29, each joint assembly comprises a communication main pipe 42, a joint 43 is led out from the upper part of the communication main pipe 42, communication branch pipes 41 corresponding to the reinforcing ribs 44 in number one by one are led out from the side part of the communication main pipe 42, one end of each communication branch pipe 41 is communicated with the inner cavity (interlayer) of the corresponding reinforcing rib 44, and the other end of each communication branch pipe is communicated with the inner cavity of the communication main pipe 42. One of the two sets of joint assemblies is connected with the interlayer air inlet valve 8 through a joint 43 in the interlayer for realizing the steam inlet into the interlayer, and the other set is connected with the second drain valve 27 through a joint 43 in the interlayer for discharging the condensed water generated in the interlayer by the steam.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (9)
1. A vacuum cleaning system comprising a cleaning tank (29), characterized in that: an air bubble generator (24) is installed in the inner cavity of the cleaning tank (29), an interlayer is arranged outside the cleaning tank (29), a steam heating unit, a pure water circulating unit, a tap water cooling unit, a vacuumizing unit and an air supplementing unit are arranged outside the cleaning tank (29), and a controller for controlling the steam heating unit, the pure water circulating unit, the tap water cooling unit, the vacuumizing unit and the air supplementing unit is also arranged;
the output end of the pure water circulating unit is connected with a cooling medium channel of the heat exchanger (33), and pure water circulates between the cooling medium channel and the cleaning tank (29); one of the two output ends of the steam heating unit is connected to the outer interlayer of the cleaning tank (29), and the other output end of the steam heating unit is connected to the water tank (20) through a high-temperature medium channel of the heat exchanger (33); the input end of the vacuumizing unit is communicated with the inner cavity of the cleaning tank (29), the output end of the vacuumizing unit is connected into the water tank (20) through a high-temperature medium channel of the condenser (12), one of the two output ends of the tap water cooling unit is connected into the water tank (20), and the other output end of the tap water cooling unit is connected into the water tank (20) through a low-temperature medium channel of the condenser (12); the input end of the air supply unit is connected with the outside air, and the output end of the air supply unit enters the cleaning tank (29) and is connected with the bubble generator (24).
2. The vacuum cleaning system of claim 1, wherein: in the steam heating unit, one end of a steam pipeline (5) is connected with a steam source, the other end of the steam pipeline is connected with one end of a steam heating valve (6) and one end of an interlayer air inlet valve (8) respectively, the other end of the interlayer air inlet valve (8) is connected with a cleaning groove (29), a high-temperature medium inlet of a heat exchanger (33) at the other end of the steam heating valve (6) is connected, and a high-temperature medium outlet of the heat exchanger (33) is connected into a water tank (20) through a first drain valve (7).
3. The vacuum cleaning system of claim 1, wherein: in the pure water circulating unit, one end of a pure water pipeline (2) is connected with a pure water source, the other end of the pure water pipeline is connected with one end of a pure water valve (3), the other end of the pure water valve (3) is connected with a low-temperature medium inlet of a heat exchanger (33), and a low-temperature medium outlet of the heat exchanger (33) is connected with an inner cavity of the cleaning tank (29);
a pipeline led out from the bottom of the self-cleaning tank (29) is connected with an inlet of a circulating pump (25), an outlet of the circulating pump (25) is connected with one interface of a three-way actuator (26), one of the other two interfaces of the three-way actuator (26) is connected into the water tank (20), and the other one is connected with a low-temperature medium inlet of a heat exchanger (33) through a first one-way valve (4).
4. The vacuum cleaning system of claim 1, wherein: in the tap water cooling unit, one end of a tap water pipeline (1) is connected with a tap water source, the other end of the tap water pipeline is simultaneously connected with one end of a condenser tap water valve (14) and one end of a cooling tap water valve (18), and the other end of the cooling tap water valve (18) is connected into a water tank (20) through a second flow balance valve (19); the other end of the condenser tap water valve (14) is connected with the inlet of the low-temperature medium of the condenser (12) after being connected with the first flow balance valve (15) through a pipeline, and the outlet of the low-temperature medium of the condenser (12) is connected into the water tank (20).
5. The vacuum cleaning system of claim 1, wherein: in the vacuum pumping unit, a pipeline led out from the top of the self-cleaning tank (29) is connected with a high-temperature medium inlet of a condenser (12), an outlet of the high-temperature medium of the condenser (12) is connected with an inlet of a vacuum pump (16) through a pipeline by an evacuation valve (13), and an outlet of the vacuum pump (16) is connected into a water tank (20).
6. The vacuum cleaning system of claim 1, wherein: the air supplementing unit comprises an air filter (9), an outlet of the air filter (9) is respectively connected with one end of the gas-phase air return valve (10) and one end of the liquid-phase air return valve (23), and the other end of the gas-phase air return valve (10) is connected into the cleaning tank (29); the other end of the liquid phase air return valve (23) enters the inner cavity of the cleaning tank (29) and is connected with the air inlet end of the bubble generator (24).
7. The vacuum cleaning system of claim 1, wherein: the outer part of the cleaning tank (29) is provided with a cleaning tank inner shell (36) and a cleaning tank outer shell (34), and the interlayer is formed between the cleaning tank inner shell (36) and the cleaning tank outer shell (34).
8. The vacuum cleaning system of claim 1, wherein: the bubble generator (24) comprises an air inlet joint (40) and two bubble generating tubes (38) symmetrically arranged at two sides of the air inlet joint (40), and a plurality of air outlet holes (39) are uniformly formed in the tube walls of the bubble generating tubes (38).
9. A cleaning method using the vacuum cleaning system according to any one of claims 1 to 8, wherein: the method comprises the following steps:
step a, in a standby state, a controller controls an output end of a steam heating unit to be opened, steam is introduced into an interlayer of a cleaning groove (29), and the cleaning groove (29) is preheated;
b, the controller controls the pure water circulating unit to start, and pure water enters the cleaning tank (29); when pure water enters the cleaning tank (29), the controller controls the other output end of the steam heating unit to be opened, and steam enters a high-temperature medium channel of the heat exchanger (33) to heat the pure water in the low-temperature medium channel;
c, judging whether the water temperature in the cleaning tank (29) reaches a preset temperature or not by the controller, if so, controlling the steam heating unit to be closed by the controller, executing the step d, and if not, returning to execute the step b;
d, controlling the vacuumizing unit to work by the controller, and vacuumizing the cleaning tank (29) to form negative pressure in the cleaning tank (29);
step e, the controller judges whether the water level in the cleaning tank (29) reaches a preset water level, if so, the controller controls the pure water circulating unit to be closed, and if not, the controller returns to execute the step b;
step f, the controller judges whether the water temperature in the cleaning tank (29) reaches the preset temperature again, if the water temperature reaches the preset water temperature, step j is executed, and if the water temperature does not reach the preset water temperature, steps g to i are executed in sequence;
step g, the controller controls the pure water circulating unit to work, so that pure water in the cleaning tank (29) circulates in the low-temperature medium channel of the heat exchanger (33) and the cleaning tank (29), and simultaneously controls the steam heating unit to work, and the pure water is circularly heated in the circulating process through the heat exchanger (33);
step h, in the process of circulating heating, collecting condensed water by a water tank (20);
step i, the controller judges whether the water temperature in the water tank (20) exceeds a preset water temperature, if so, the controller controls a tap water cooling unit to work, and tap water is injected into the water tank (20) to reduce the water temperature in the water tank (20);
and j, controlling the vacuumizing unit to work continuously by the controller, then starting the air supplementing unit, and enabling the external air to enter the cleaning tank (29) and output from the bubble generator (24).
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| CN202011258158.0A CN112517520A (en) | 2020-11-12 | 2020-11-12 | Vacuum cleaning system and cleaning method |
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| CN202011258158.0A CN112517520A (en) | 2020-11-12 | 2020-11-12 | Vacuum cleaning system and cleaning method |
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| CN112944811A (en) * | 2021-04-02 | 2021-06-11 | 山东新华医疗器械股份有限公司 | Drying system for pulsating vacuum cleaning sterilizer |
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Application publication date: 20210319 |