CN116077690A - Steam sterilizer with water saving system - Google Patents
Steam sterilizer with water saving system Download PDFInfo
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- CN116077690A CN116077690A CN202310365210.XA CN202310365210A CN116077690A CN 116077690 A CN116077690 A CN 116077690A CN 202310365210 A CN202310365210 A CN 202310365210A CN 116077690 A CN116077690 A CN 116077690A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 238000001816 cooling Methods 0.000 claims abstract description 39
- 230000001954 sterilising effect Effects 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000000498 cooling water Substances 0.000 claims description 58
- 239000000523 sample Substances 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 12
- 238000005086 pumping Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention belongs to the field of sterilizers, and relates to a steam sterilizer with a water saving system, which comprises a sterilization chamber main body, a steam drainage pipeline and a sterilization chamber discharge pipeline, wherein the steam drainage pipeline and the sterilization chamber discharge pipeline are communicated with the sterilization chamber main body; the device comprises a unit support frame, a vacuum pumping unit, a plate heat exchanger and a water-saving pipeline system, wherein the vacuum pumping unit is fixed on the unit support frame, the cooling pipeline inlet of the plate heat exchanger is communicated with a steam drainage pipeline, the vacuum pumping unit comprises an evacuating pump, an evacuating heat exchanger and a condensate water tank, the steam cooling pipeline inlet of the evacuating heat exchanger is connected with a sterilizing chamber discharge pipeline, the steam cooling pipeline outlet of the evacuating heat exchanger is communicated with the evacuating pump inlet, and the evacuating pump outlet is communicated with the condensate water tank; the water-saving pipeline system comprises a pipeline III and a pipeline IV, one end of the pipeline III is communicated with a condensate water outlet of the evacuating heat exchanger, and the other end of the pipeline III is simultaneously communicated with a heating pipeline inlet of the plate heat exchanger and one end of the pipeline IV. The invention has compact structure and convenient installation, and reduces the manufacturing and installation cost; high evacuation efficiency and low water consumption.
Description
Technical Field
The invention relates to a steam sterilizer with a water saving system, and belongs to the technical field of sterilizers.
Background
The steam sterilizer is a common sterilizer type in the market, and the steam sterilizer in the market at present basically uses a liquid ring type evacuation pump to vacuumize a sterilization cavity, and as the temperature of steam in the sterilization cavity is higher, the temperature of the evacuation pump is too high, so that the pumping efficiency of the evacuation pump is influenced, and the liquid ring type evacuation pump is easy to generate a high-temperature state during working and has low evacuation efficiency; the water source required by the pump for the plate heat exchanger is an external water source and then is provided with a switch valve, when cooling is required, the switch valve is opened, the cooling water source enters the plate heat exchanger and is directly discharged, and the water consumption is extremely high; the conventional equipment pipeline part of the existing sterilizer is fixed on equipment, and is inconvenient to detach, move and the like, high in labor cost, long in application pipeline and the like, high in cost and large in occupied space, no matter when the conventional equipment pipeline part is produced and assembled in factories, or when the conventional equipment pipeline part is assembled in the later period of a customer service engineer.
Disclosure of Invention
The invention aims to solve the technical problems that: the steam sterilizer with the water-saving system integrates the vacuumizing unit, the plate heat exchanger and the water-saving pipeline system, has compact structure and convenient installation, and reduces the manufacturing and installation cost; high evacuation efficiency and low water consumption.
The invention relates to a steam sterilizer with a water saving system, which comprises a sterilizing chamber main body, wherein a steam inlet pipeline, a steam drainage pipeline and a sterilizing chamber discharge pipeline are communicated with the sterilizing chamber main body; the device comprises a unit support frame, a vacuum pumping unit, a plate heat exchanger and a water-saving pipeline system, wherein the vacuum pumping unit is fixed on the unit support frame, the cooling pipeline inlet of the plate heat exchanger is communicated with a steam drainage pipeline, the vacuum pumping unit comprises an evacuating pump, an evacuating heat exchanger and a condensate water tank, the steam cooling pipeline inlet of the evacuating heat exchanger is connected with a sterilizing chamber discharge pipeline, the steam cooling pipeline outlet of the evacuating heat exchanger is communicated with the evacuating pump inlet, and the evacuating pump outlet is communicated with the condensate water tank; the water-saving pipeline system comprises a pipeline III and a pipeline IV, one end of the pipeline III is communicated with a condensate water outlet of the evacuating heat exchanger, the other end of the pipeline III is simultaneously communicated with a heating pipeline inlet of the plate heat exchanger and one end of the pipeline IV, and a pneumatic valve III is arranged between the pipeline III and the pipeline IV.
In the working process, the evacuating pump is used for evacuating the sterilizing chamber through the discharging pipeline of the sterilizing chamber, condensed water in the condensed water heating pipeline of the evacuating heat exchanger is external condensed water, high-temperature steam and condensed water in the sterilizing chamber firstly enter the evacuating heat exchanger, the high-temperature steam and the condensed water exchange heat in the evacuating heat exchanger, a part of heat is taken away by the condensed water in the condensed water heating pipeline in the evacuating heat exchanger, the condensed water is discharged from the condensed water outlet, and the high-temperature steam and the condensed water with reduced temperature are discharged from the evacuating heat exchanger and finally enter the condensed water tank through the evacuating pump, so that the evacuating pump is not easy to generate a high-temperature state, and higher evacuating efficiency can be ensured; the condensed water discharged from the condensed water heating pipeline of the evacuating heat exchanger is generally not too high in temperature and is generally concentrated at 35-50 ℃, the condensed water enters the heating pipeline of the plate heat exchanger through a pipeline III, the cooling pipeline inlet of the plate heat exchanger is communicated with the steam drainage pipeline through a pipeline six, the condensed water entering the plate heat exchanger is subjected to heat exchange with the high-temperature water in the cooling pipeline of the plate heat exchanger, the high-temperature water in the cooling pipeline of the plate heat exchanger is discharged through a pipeline seven after heat exchange, and the externally connected condensed water is finally discharged through two times of utilization, so that the evacuating pump can ensure higher evacuating efficiency, the temperature of the water discharged by the plate heat exchanger reaches the standard, the water consumption in the process of a sterilizer is reduced, the use cost is saved, and the water resource protection is facilitated. And the vacuumizing unit, the plate heat exchanger and the water-saving pipeline system are integrated into a whole, so that the structure is compact, the installation is convenient, and the manufacturing and installation cost is reduced. The steam sterilizer also includes some basic components, jackets, doors, and other components permanently connected to the sterilization chamber body, as is known in the art and will not be described in detail herein. The top of the condensing water tank is provided with an exhaust port for discharging high-pressure gas inside; and the outer cover is arranged outside the evacuation pump, and hanging rings are arranged on the outer cover and the condensing water tank body, so that the installation is convenient. The condensing water tank is also provided with a liquid level meter. The evacuated heat exchanger is a brazed heat exchanger.
Preferably, the vacuum pumping unit further comprises a pipeline system module, the pipeline system module comprises a module shell, an internal water tank is arranged in the module shell and is opposite to the pump head of the evacuation pump, the inner cavity of the internal water tank is directly contacted with the pump head of the evacuation pump, the water inlet of the internal water tank is communicated with the working solution inlet on the module shell, and the water outlet of the internal water tank is communicated with the external water outlet. External comdenstion water gets into inside water tank through the working solution entry, and the cooling water in the inside water tank is to evacuating pump head direct cooling, and the cooling effect is good, can further guarantee evacuating pump's evacuation efficiency.
Preferably, the module shell is further provided with a first module port, a second module port, a third module port and a fourth module port, the first module port is connected with an inlet of a steam cooling pipeline of the evacuating heat exchanger, the first module port is communicated with an air suction port on the module shell through an internal pipeline of the module shell, and the air suction port is communicated with a sterilizing chamber discharge pipeline through a second pipeline; the second module port is connected with the outlet of the steam cooling pipeline of the evacuation heat exchanger, and the second module port is communicated with the inlet of the evacuation pump through the pipeline inside the module shell; the third module port is communicated with a condensate water inlet of the evacuating heat exchanger, the third module port is communicated with a condenser cooling water inlet on the module shell through a pipeline inside the module shell, and the condenser cooling water inlet is communicated with the pipeline I; the fourth module port is connected with a condensate water outlet of the evacuating heat exchanger, and is communicated with a condenser cooling water outlet on the module shell through a pipeline inside the module shell, and the condenser cooling water outlet is communicated with three ends of the pipeline; the first pipeline and the second pipeline are both contained in the water-saving pipeline system. The inlet of the pipeline I is connected with external condensed water, one path of the external condensed water enters the pipeline system module through the cooling water inlet of the condenser, then enters the condensed water heating pipeline of the evacuating heat exchanger through the condensed water inlet of the evacuating heat exchanger, and the other path of the external condensed water is communicated with the working fluid inlet through the pneumatic valve I; the pipeline system module is modularized and integrated with multiple pipelines, so that the pipeline system module is convenient to install. And the module shell is also provided with a cavitation protection ball valve which is in a normally open state and is used for eliminating cavitation influence in the work of the evacuation pump. The pipeline system module is arranged between the vacuum pump and the sterilizer, and the inside of the pipeline system module is a module shell, so that the pipeline system module has a buffer effect, and high-temperature and high-pressure gas is prevented from directly acting on the evacuation pump to damage the evacuation pump.
Preferably, the second pipeline is provided with a second pneumatic valve for realizing the evacuation operation in the process of the sterilizer.
Preferably, the module shell is also provided with a cooling water supplementing port and a spraying cooling water port, the cooling water supplementing port and the spraying cooling water port are both communicated with the first pipeline, and the cooling water supplementing port and the spraying cooling water port are communicated with the pump head of the evacuation pump. The condensed water entering the system from the first pipeline is also communicated with the cooling water supplementing inlet and the spraying cooling water port after passing through the first pneumatic valve. The cooling water supplementing port is communicated with the pump head of the evacuating pump, and the evacuating pump is used for cooling high-temperature gas and liquid sucked by the evacuating pump.
Preferably, a first temperature probe is arranged on the third pipeline and is used for measuring the temperature of cooling water discharged from the evacuation heat exchanger, when the temperature is higher than the set temperature, the third pneumatic valve is opened, and water is directly discharged through the fourth pipeline; when the temperature is lower than the set temperature, the pneumatic valve III is closed, and the cooling water discharged from the evacuating heat exchanger enters the plate heat exchanger and is reused as the cooling water of the plate heat exchanger, so that the water consumption is reduced. The pneumatic valve III is in a normally closed state.
Preferably, the unit support frame is also fixed with a drainage box; the outlet of the heating pipeline of the plate heat exchanger is communicated with a pipeline five, a pneumatic valve four is arranged on the pipeline five, and the outlet of the pipeline five corresponds to the drainage tank; the inlet of the heating pipeline of the plate heat exchanger is communicated with a pipeline III; the four outlets of the pipeline correspond to the drainage tanks. The drainage tank is a stainless steel water tank.
Preferably, the drainage tank comprises a tank shell, wherein the tank shell is provided with a first tank connector, a second tank connector and a third tank connector, and the first tank connector is communicated with a condensing tank water outlet through a pipeline eight; the water tank connector II is arranged on one side of the water tank shell and communicated with the main drain pipe; the water tank interface III is arranged at the lower part of the water tank shell and is provided with a temperature probe III. The main drain pipe is finally connected to the water outlet between the devices; the temperature probe is used for monitoring and measuring the temperature in the drainage box in real time, and when the temperature exceeds a set value, cooling water enters, so that sterilization and drainage in the running process are finally realized; the bottom of the water tank shell is also provided with a standby water outlet which is a standby or emergency water outlet.
Preferably, the water tank shell is a non-cover box body, and a water tank baffle inclined plane is arranged in the inner cavity of the water tank shell. The inclined plane of the baffle plate of the water tank presents a certain angle with the horizontal plane, so that the situation that water splashes outside the drainage tank when the water is drained through the pipeline four, the pipeline five and the pipeline seven can be effectively avoided.
Preferably, the inlet of the cooling pipeline of the plate heat exchanger is communicated with the steam drainage pipeline through a pipeline six, the outlet of the cooling pipeline of the plate heat exchanger is communicated with the inlet end of a pipeline seven, the outlet end of the pipeline seven corresponds to the drainage tank, and a temperature probe two is arranged on the pipeline seven. The temperature probe II is used for detecting the temperature of the outlet of the cooling pipeline of the plate heat exchanger, when the temperature is higher than the set temperature, the pneumatic valve IV is opened, and when the temperature is lower than the set temperature, the pneumatic valve IV is closed.
Compared with the prior art, the invention has the following beneficial effects:
the invention has reasonable structural design, integrates the vacuumizing unit, the plate heat exchanger and the water-saving pipeline system, has compact structure and convenient installation, reduces the manufacturing and installation cost and occupies small space; the evacuation pump can effectively cool down, and a high-temperature state is avoided, so that high evacuation efficiency is ensured; the cooling water is fully utilized, is not directly discharged by primary utilization, and effectively reduces the water consumption.
Drawings
FIG. 1 is a schematic diagram of a steam sterilizer configured with a water conservation system;
FIG. 2 is a schematic diagram of the structure of the vacuum pumping unit, the plate heat exchanger and the water-saving pipeline system;
FIG. 3 is a schematic diagram of a vacuum pumping unit;
FIG. 4 is a second schematic structural view of the vacuum pumping unit;
FIG. 5 is a schematic diagram of the construction of a water saving pipe system;
fig. 6 is a schematic view of the drain tank structure.
In the figure: 1. a sterilization chamber body; 2. a steam drain line; 3. a vacuum pumping unit; 4. a unit support frame; 5. a water-saving pipeline system; 6. a sterilization chamber discharge line; 7. a condensate tank; 8. an outer cover; 9. a hanging ring; 10. an exhaust port; 11. a first temperature probe; 12. evacuating the heat exchanger; 13. a sixth pipeline; 14. a first pneumatic valve; 15. a second temperature probe; 16. a plate heat exchanger; 17. a pipeline seven; 18. a fifth pipeline; 19. a first pipeline; 20. a pneumatic valve IV; 21. a second pipeline; 22. a drain tank; 23. a fourth pipeline; 24. a pneumatic valve II; 25. a pneumatic valve III; 26. a third pipeline; 27. a module housing; 28. a pipeline eight; 29. a pipeline system module; 30. an internal water tank; 31. an evacuation pump; 32. a liquid level gauge; 33. a condenser cooling water outlet; 34. an air suction port; 35. cavitation protection ball valve; 36. a cooling water supply port; 37. a working fluid inlet; 38. a condenser cooling water inlet; 39. spraying a cooling water gap; 40. a fourth module port; 41. a second module port; 42. a first module port; 43. a third module port; 44. a water tank joint III; 45. a water tank connector II; 46. a first water tank interface; 47. a water tank baffle inclined plane; 48. a spare water outlet; 49. a tank housing.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the steam sterilizer with the water saving system comprises a sterilizing chamber main body 1, a steam inlet pipeline, a steam drain pipeline 2 and a sterilizing chamber discharge pipeline 6, wherein the steam inlet pipeline, the steam drain pipeline 2 and the sterilizing chamber discharge pipeline 6 are communicated with the sterilizing chamber main body 1; the device also comprises a vacuumizing unit 3, a plate heat exchanger 16 and a water-saving pipeline system 5 which are fixed on the unit supporting frame 4, wherein the inlet of a cooling pipeline of the plate heat exchanger 16 is communicated with a steam drainage pipeline 2, the vacuumizing unit 3 comprises an evacuating pump 31, an evacuating heat exchanger 12 and a condensate water tank 7, the inlet of a steam cooling pipeline of the evacuating heat exchanger 12 is connected with a sterilizing chamber discharge pipeline 6, the outlet of the steam cooling pipeline of the evacuating heat exchanger 12 is communicated with the inlet of the evacuating pump 31, and the outlet of the evacuating pump 31 is communicated with the condensate water tank 7; the water-saving pipeline system 5 comprises a pipeline III 26 and a pipeline IV 23, one end of the pipeline III 26 is communicated with a condensate water outlet of the evacuating heat exchanger 12, the other end of the pipeline III 26 is simultaneously communicated with a heating pipeline inlet of the plate heat exchanger 16 and one end of the pipeline IV 23, and a pneumatic valve III 25 is arranged between the pipeline III 26 and the pipeline IV 23.
In this embodiment: the vacuumizing unit 3 further comprises a pipeline system module 29, the pipeline system module 29 comprises a module shell 27, an inner water tank 30 is arranged in the module shell 27, the inner water tank 30 faces the pump head of the vacuumizing pump 31, the inner cavity of the inner water tank 30 is directly contacted with the pump head of the vacuumizing pump 31, the water inlet of the inner water tank 30 is communicated with a working fluid inlet 37 on the module shell 27, and the water outlet of the inner water tank 30 is communicated with an external water outlet. External condensed water enters the internal water tank 30 through the working fluid inlet 37, and the cooling water in the internal water tank 30 directly cools the pump head of the evacuation pump 31, so that the cooling effect is good, and the evacuation efficiency of the evacuation pump 31 can be further ensured.
The module shell 27 is also provided with a first module port 42, a second module port 41, a third module port 43 and a fourth module port 40, the first module port 42 is connected with the inlet of the steam cooling pipeline of the evacuating heat exchanger 12, the first module port 42 is communicated with the air suction port 34 on the module shell 27 through the pipeline inside the module shell 27, and the air suction port 34 is communicated with the sterilizing chamber discharge pipeline 6 through the pipeline II 21; the second module port 41 is connected with the outlet of the steam cooling pipeline of the evacuating heat exchanger 12, and the second module port 41 is communicated with the inlet of the evacuating pump 31 through the internal pipeline of the module shell 27; the third module port 43 is communicated with a condensate water inlet of the evacuated heat exchanger 12, the third module port 43 is communicated with a condenser cooling water inlet 38 on the module shell 27 through a pipeline inside the module shell 27, and the condenser cooling water inlet 38 is communicated with a pipeline I19; the fourth module port 40 is connected with a condensate water outlet of the evacuated heat exchanger 12, the fourth module port 40 is communicated with a condenser cooling water outlet 33 on the module shell 27 through an inner pipeline of the module shell 27, and the condenser cooling water outlet 33 is communicated with one end of a third pipeline 26; both line one 19 and line two 21 are contained within the water conservation line system 5. The inlet of the first pipeline 19 is connected with external condensed water, one path of the external condensed water enters the pipeline system module 29 through the condenser cooling water inlet 38, then enters the condensed water heating pipeline of the evacuated heat exchanger 12 through the condensed water inlet of the evacuated heat exchanger 12, and the other path of the external condensed water is communicated with the working fluid inlet 37 through the first pneumatic valve 14; the pipeline system module 29 modularizes and integrates multiple pipelines, and is convenient to install. The module housing 27 is also provided with a cavitation protection ball valve 35 which is normally open for eliminating cavitation effects during operation of the evacuation pump 31. The pipeline system module 29 is installed between the evacuation pump 31 and the sterilizer, and the inside is a module shell, so that the buffer effect can be achieved, and the high-temperature and high-pressure gas is prevented from directly acting on the evacuation pump 31 to damage the evacuation pump 31.
A pneumatic valve II 24 is arranged on the pipeline II 21 and is used for realizing the evacuation operation in the process of the sterilizer.
The module housing 27 is also provided with a cooling water supplementing port 36 and a spray cooling water port 39, the cooling water supplementing port 36 and the spray cooling water port 39 are both communicated with the first pipeline 19, and the cooling water supplementing port 36 and the spray cooling water port 39 are communicated with the pump head of the evacuation pump 31. The condensed water entering the system through the first pipeline 19 is also communicated with the cooling water supplementing inlet 36 and the spray cooling water port 39 after passing through the first pneumatic valve 14. The cooling water supplementing port and the spray cooling water port are communicated with the pump head of the evacuation pump 31, so that the evacuation pump 31 can cool and lower the temperature of high-temperature gas and liquid sucked in.
A first temperature probe 11 is installed on the third pipeline 26 and is used for measuring the temperature of cooling water discharged from the evacuating heat exchanger 12, when the temperature is higher than the set temperature, a third pneumatic valve 25 is opened, and water is directly discharged through a fourth pipeline 23; when the temperature is lower than the set temperature, the third pneumatic valve 25 is closed, and the cooling water discharged from the evacuation heat exchanger 12 enters the plate heat exchanger 16, and is reused as the cooling water of the plate heat exchanger 16, thereby reducing the water consumption. The third pneumatic valve 25 is normally closed.
A drainage tank 22 is also fixed on the unit support frame 4; the outlet of the heating pipeline of the plate heat exchanger 16 is communicated with a pipeline five 18, a pneumatic valve four 20 is arranged on the pipeline five 18, and the outlet of the pipeline five 18 corresponds to a drainage tank 22; the inlet of the heating pipeline of the plate heat exchanger 16 is communicated with a pipeline III 26; the outlet of the pipeline IV 23 corresponds to the drainage tank 22. The drain tank 22 is a stainless steel tank.
The drainage tank 22 comprises a tank shell 49, the tank shell 49 is provided with a first tank connector 46, a second tank connector 45 and a third tank connector 44, and the first tank connector 46 is communicated with the water outlet of the condensate tank 7 through a pipeline eight 28; the second water tank connector 45 is arranged on one side of the water tank shell 49 and communicated with the main drain pipe; the third tank port 44 is provided in the lower portion of the tank case 49, and a third temperature probe is mounted. The main drain pipe is finally connected to the water outlet between the devices; the temperature probe is used for monitoring and measuring the temperature in the drainage box 22 in real time, and when the temperature exceeds a set value, cooling water enters, so that sterilization drainage in the running process is finally realized; the bottom of the tank housing 49 is also provided with a spare drain 48, either a spare or emergency drain.
The water tank shell 49 is a non-cover box body, and a water tank baffle inclined plane 47 is arranged in the inner cavity of the water tank shell 49. The inclined surface 47 of the water tank baffle presents a certain angle with the horizontal plane, so that the situation that water splashes outside the water draining box 22 when the water is drained through the pipeline IV 23, the pipeline V18 and the pipeline V17 can be effectively avoided.
The inlet of the cooling pipeline of the plate heat exchanger 16 is communicated with the steam drainage pipeline 2 through a pipeline six 13, the outlet of the cooling pipeline of the plate heat exchanger 16 is communicated with the inlet end of a pipeline seven 17, the outlet end of the pipeline seven 17 corresponds to the drainage tank 22, and a temperature probe two 15 is arranged on the pipeline seven 17. The second temperature probe 15 is used for detecting the temperature at the outlet of the cooling pipeline of the plate heat exchanger 16, and when the temperature is higher than the set temperature, the fourth pneumatic valve 20 is opened, cooling water flows, and the cooling effect is good; when the temperature is lower than the set temperature, the pneumatic valve IV 20 is closed, cooling water does not flow, and the cooling efficiency is low.
The evacuation pump 31 is used for evacuating the sterilization chamber through the sterilization chamber discharge pipeline 6, in the working process, external condensed water enters the pipeline system module 29 through the condenser cooling water inlet 38 from the pipeline I19, then enters the condensed water heating pipeline of the evacuation heat exchanger 12 through the condensed water inlet of the evacuation heat exchanger 12, high-temperature steam and condensed water in the sterilization chamber enter the evacuation heat exchanger 12 through the pipeline II 21 and the air suction port 34, the high-temperature steam and the condensed water exchange heat in the evacuation heat exchanger 12, a part of heat is taken away by the condensed water in the condensed water heating pipeline in the evacuation heat exchanger 12, the condensed water is discharged from the condensed water outlet, and the high-temperature steam and the condensed water with reduced temperature are discharged from the evacuation heat exchanger 12 and finally enter the condensed water tank 7 through the evacuation pump 31, so that the evacuation pump 31 is not easy to generate a high-temperature state and the higher evacuation efficiency can be ensured; the condensed water discharged from the condensed water outlet is generally not too high in temperature and is generally concentrated at 35-50 ℃, the condensed water enters a heating pipeline of the plate heat exchanger 16 through a pipeline III 26, a cooling pipeline inlet of the plate heat exchanger 16 is communicated with a steam drainage pipeline 2 through a pipeline III 13, the condensed water entering the plate heat exchanger 16 exchanges heat with high-temperature water in the cooling pipeline of the plate heat exchanger 16, and the high-temperature water in the cooling pipeline of the plate heat exchanger 16 is discharged to a drainage tank 22 through a pipeline seven 17 after exchanging heat; the external condensed water is finally discharged through twice utilization, so that the evacuation pump 31 can ensure higher evacuation efficiency, the temperature of the water discharged by the plate heat exchanger 16 reaches the standard, the water consumption in the sterilizer process is reduced, the use cost is saved, and the water resource protection is facilitated. And the vacuumizing unit 3, the plate heat exchanger 16 and the water-saving pipeline system 5 are integrated into a whole, so that the structure is compact, the installation is convenient, and the manufacturing and installation cost is reduced. The steam sterilizer also includes some basic components, jackets, gates, and other components permanently connected to the sterilization chamber, as is known in the art and will not be described in detail herein. The top of the condensate water tank 7 is provided with an exhaust port 10 for discharging high-pressure gas inside; the outer cover 8 is arranged outside the evacuation pump 31, and hanging rings 9 are arranged on the outer cover 8 and the condensing water tank 7, so that the installation is convenient. The condensate tank 7 is also provided with a level gauge 32. The evacuated heat exchanger 12 is a brazed heat exchanger.
Claims (10)
1. A steam sterilizer with a water saving system comprises a sterilizing chamber main body (1), a steam inlet pipeline, a steam drain pipeline (2) and a sterilizing chamber discharge pipeline (6) which are communicated with the sterilizing chamber main body (1); the method is characterized in that: the device comprises a unit support frame (4), and is characterized by further comprising a vacuumizing unit (3), a plate heat exchanger (16) and a water-saving pipeline system (5), wherein the vacuumizing unit (3) is fixed on the unit support frame (4), a cooling pipeline inlet of the plate heat exchanger (16) is communicated with a steam drainage pipeline (2), the vacuumizing unit (3) comprises an evacuating pump (31), an evacuating heat exchanger (12) and a condensate water tank (7), a steam cooling pipeline inlet of the evacuating heat exchanger (12) is connected with a sterilizing chamber discharge pipeline (6), a steam cooling pipeline outlet of the evacuating heat exchanger (12) is communicated with an inlet of the evacuating pump (31), and an outlet of the evacuating pump (31) is communicated with the condensate water tank (7); the water-saving pipeline system (5) comprises a pipeline III (26) and a pipeline IV (23), one end of the pipeline III (26) is communicated with a condensate water outlet of the evacuating heat exchanger (12), the other end of the pipeline III (26) is simultaneously communicated with a heating pipeline inlet of the plate heat exchanger (16) and one end of the pipeline IV (23), and a pneumatic valve III (25) is arranged between the pipeline III (26) and the pipeline IV (23).
2. The steam sterilizer with a water conservation system according to claim 1, wherein: the vacuumizing unit (3) further comprises a pipeline system module (29), the pipeline system module (29) comprises a module shell (27), an inner water tank (30) is arranged in the module shell (27), the inner water tank (30) is opposite to the pump head of the vacuumizing pump (31), the inner cavity of the inner water tank (30) is directly contacted with the pump head of the vacuumizing pump (31), and the water inlet of the inner water tank (30) is communicated with a working fluid inlet (37) on the module shell (27).
3. The steam sterilizer with a water conservation system according to claim 2, wherein: the module shell (27) is also provided with a first module port (42), a second module port (41), a third module port (43) and a fourth module port (40), the first module port (42) is connected with the inlet of the steam cooling pipeline of the evacuating heat exchanger (12), the first module port (42) is communicated with the air suction port (34) on the module shell (27) through the internal pipeline of the module shell (27), and the air suction port (34) is communicated with the sterilizing chamber discharge pipeline (6) through the pipeline II (21); the second module port (41) is connected with the outlet of the steam cooling pipeline of the evacuating heat exchanger (12), and the second module port (41) is communicated with the inlet of the evacuating pump (31) through the internal pipeline of the module shell (27); the third module port (43) is communicated with a condensate water inlet of the evacuating heat exchanger (12), the third module port (43) is communicated with a condenser cooling water inlet (38) on the module shell (27) through an internal pipeline of the module shell (27), and the condenser cooling water inlet (38) is communicated with the first pipeline (19); the fourth module port (40) is connected with a condensed water outlet of the evacuating heat exchanger (12), the fourth module port (40) is communicated with a condenser cooling water outlet (33) on the module shell (27) through an inner pipeline of the module shell (27), and the condenser cooling water outlet (33) is communicated with one end of the third pipeline (26).
4. A steam sterilizer with a water conservation system according to claim 3, wherein: and a pneumatic valve II (24) is arranged on the pipeline II (21).
5. A steam sterilizer with a water conservation system according to claim 3, wherein: the module shell (27) is also provided with a cooling water supplementing inlet (36) and a spray cooling water port (39), the cooling water supplementing inlet (36) and the spray cooling water port (39) are both communicated with the first pipeline (19), and the cooling water supplementing inlet (36) and the spray cooling water port (39) are communicated with the pump head of the pump (31) of the module shell (27).
6. The steam sterilizer with a water conservation system according to claim 1, wherein: and a first temperature probe (11) is arranged on the third pipeline (26).
7. The steam sterilizer with a water conservation system according to any one of claims 1-6, wherein: a drainage box (22) is also fixed on the unit support frame (4); the outlet of the heating pipeline of the plate heat exchanger (16) is communicated with a pipeline five (18), a pneumatic valve four (20) is arranged on the pipeline five (18), and the outlet of the pipeline five (18) corresponds to a drainage box (22); the inlet of the heating pipeline of the plate heat exchanger (16) is communicated with a pipeline III (26); and the outlet of the pipeline IV (23) corresponds to the drainage box (22).
8. The steam sterilizer with a water conservation system according to claim 7, wherein: the drainage tank (22) comprises a water tank shell (49), the water tank shell (49) is provided with a first water tank interface (46), a second water tank interface (45) and a third water tank interface (44), and the first water tank interface (46) is communicated with a water outlet of the condensate tank (7) through a pipeline eight (28); the water tank connector II (45) is arranged at one side of the water tank shell (49) and is connected with the main drain pipe; the water tank joint III (44) is arranged at the lower part of the water tank shell (49) and is provided with a temperature probe III.
9. The steam sterilizer with a water conservation system according to claim 8, wherein: the water tank shell (49) is a non-cover box body, and a water tank baffle inclined plane (47) is arranged in the inner cavity of the water tank shell (49).
10. The steam sterilizer with a water conservation system according to claim 7, wherein: the cooling pipeline inlet of the plate heat exchanger (16) is communicated with the steam drainage pipeline (2) through a pipeline six (13), the cooling pipeline outlet of the plate heat exchanger (16) is communicated with the inlet end of a pipeline seven (17), the outlet end of the pipeline seven (17) corresponds to the drainage tank (22), and a temperature probe two (15) is arranged on the pipeline seven (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310365210.XA CN116077690A (en) | 2023-04-07 | 2023-04-07 | Steam sterilizer with water saving system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310365210.XA CN116077690A (en) | 2023-04-07 | 2023-04-07 | Steam sterilizer with water saving system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996012557A1 (en) * | 1994-10-24 | 1996-05-02 | Getinge Ab | An arrangement in autoclaving systems |
| CN104474564A (en) * | 2014-12-08 | 2015-04-01 | 老肯医疗科技股份有限公司 | Energy-saving type pulsation vacuum pressure steam sterilizer |
| CN105497939A (en) * | 2016-01-11 | 2016-04-20 | 老肯医疗科技股份有限公司 | Water-saving and noise-reducing vacuum system for pulsing vacuum pressure steam sterilizer |
| CN217489331U (en) * | 2022-06-16 | 2022-09-27 | 山东新华医疗器械股份有限公司 | Integrated evacuation system for steam sterilizer |
-
2023
- 2023-04-07 CN CN202310365210.XA patent/CN116077690A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996012557A1 (en) * | 1994-10-24 | 1996-05-02 | Getinge Ab | An arrangement in autoclaving systems |
| CN104474564A (en) * | 2014-12-08 | 2015-04-01 | 老肯医疗科技股份有限公司 | Energy-saving type pulsation vacuum pressure steam sterilizer |
| CN105497939A (en) * | 2016-01-11 | 2016-04-20 | 老肯医疗科技股份有限公司 | Water-saving and noise-reducing vacuum system for pulsing vacuum pressure steam sterilizer |
| CN217489331U (en) * | 2022-06-16 | 2022-09-27 | 山东新华医疗器械股份有限公司 | Integrated evacuation system for steam sterilizer |
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