CN209829675U - Circulating cleaning equipment of freeze dryer - Google Patents
Circulating cleaning equipment of freeze dryer Download PDFInfo
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- CN209829675U CN209829675U CN201920297327.8U CN201920297327U CN209829675U CN 209829675 U CN209829675 U CN 209829675U CN 201920297327 U CN201920297327 U CN 201920297327U CN 209829675 U CN209829675 U CN 209829675U
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Abstract
The utility model discloses a freeze dryer circulation cleaning device, which comprises a control system, a water storage tank, a circulation pipeline, a steam pipeline and a cooling water pipeline; a water injection pipe is arranged at the top of the water storage tank, and a first electromagnetic valve is arranged on the water injection pipe; two ends of a circulating pipeline are respectively connected with a water storage tank, a main electromagnetic valve, a circulating pump, a heat exchanger, a temperature sensor and cleaning pipes are arranged on the circulating pipeline at intervals, and the cleaning pipes are provided with second electromagnetic valves and connected with a freeze dryer; the heat exchanger is connected with a steam pipeline and a cooling water pipeline respectively, a third electromagnetic valve is arranged at the inlet of the steam pipeline, a fourth electromagnetic valve is arranged at the inlet of the cooling water pipeline, and the control system is connected with a main electromagnetic valve, a circulating pump, a temperature sensor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve respectively. The utility model discloses not only can utilize high-temperature water to wash and disinfect the freeze dryer, can also disinfect to the circulation pipeline that send water.
Description
Technical Field
The utility model relates to a freeze dryer technical field especially relates to a freeze dryer circulation cleaning equipment.
Background
The freeze dryer is used as pharmaceutical equipment, has high requirements on cleanness and biological safety, and must be thoroughly cleaned and sterilized before use. However, the existing cleaning equipment for the freeze dryer only focuses on cleaning and disinfecting the freeze dryer and does not focus on disinfecting a water delivery pipeline, so that the cleaning and disinfecting of the freeze dryer cannot reach the standard, and the later-stage pharmacy is affected in serious cases.
Chinese patent (CN201728198U), freeze dryer external circulation cleaning system on spot, including wasing water storage tank and circulating line, it is provided with the water inlet to wash the water storage tank, the one end of circulating line is freeze dryer interface of intaking, and the other end is freeze dryer return water interface, there are water inlet contact and drainage contact on the circulating line, the water inlet contact with wash and connect through the water intake pipe that is provided with the storage tank drain valve between the water storage tank, the drainage contact is connected with the drain line that sets up the storage tank total relief valve, the circulating line is in water inlet contact with be provided with circulating pump and conductivity tester between the freeze dryer interface of intaking.
Above-mentioned prior art only pays attention to and washs the freeze dryer to the disinfection of water pipe way is not paid attention to possibly lead to washing the freeze dryer and disinfecting not up to standard, influence later stage pharmacy even when serious. In addition, the prior art can only clean one freeze dryer, which is not beneficial to large-scale production.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a freeze dryer circulation cleaning equipment not only can utilize high-temperature water to wash and disinfect the freeze dryer, can also disinfect the circulation pipeline that send water, increases the safe handling of freeze dryer.
The utility model discloses take following technical scheme to realize above-mentioned purpose:
a circulating cleaning device of a freeze dryer is applied to the freeze dryer and comprises a control system, a water storage tank, a circulating pipeline, a steam pipeline and a cooling water pipeline; a water injection pipe is arranged at the top of the water storage tank, and a first electromagnetic valve is arranged on the water injection pipe; the two ends of the circulating pipeline are respectively connected with the water storage tank, a main electromagnetic valve, a circulating pump, a heat exchanger, a temperature sensor and a cleaning pipe are arranged on the circulating pipeline at intervals, and the cleaning pipe is provided with a second electromagnetic valve and is connected with the freeze dryer; the heat exchanger is respectively connected with the steam pipeline and the cooling water pipeline, a third electromagnetic valve is arranged at the inlet of the steam pipeline, a fourth electromagnetic valve is arranged at the inlet of the cooling water pipeline, and the control system is respectively connected with the main electromagnetic valve, the circulating pump, the temperature sensor, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve.
Preferably, a breather is installed at the top of the water storage tank, one end of the breather is communicated with the atmosphere through an air inlet pipe, the other end of the breather is communicated with the water storage tank through a vent line, a fifth electromagnetic valve is arranged on the air inlet pipe, a sixth electromagnetic valve is arranged on the vent line, and the fifth electromagnetic valve and the sixth electromagnetic valve are respectively connected with the control system.
Preferably, the respirator is further provided with a drain pipe communicated with the ventilation pipeline, one end, far away from the respirator, of the drain pipe is connected with a first drain pipeline and a first bypass pipeline respectively, a first drain valve and a seventh electromagnetic valve are arranged on the first drain pipeline, an eighth electromagnetic valve is arranged on the first bypass pipeline, and the control system is connected with the first drain valve, the seventh electromagnetic valve and the eighth electromagnetic valve respectively.
Preferably, both ends of the heat exchanger are respectively provided with an upper connector and a lower connector, the upper connector is respectively connected with the inlet of the steam pipeline and the outlet of the cooling water pipeline, and the lower connector is respectively connected with the outlet of the steam pipeline and the inlet of the cooling water pipeline.
Preferably, the outlet of the steam pipeline is connected with a second drain pipeline and a second bypass pipeline respectively, the second drain pipeline is provided with a second drain valve and a ninth electromagnetic valve, the second bypass pipeline is provided with a tenth electromagnetic valve, and the control system is connected with the second drain valve, the ninth electromagnetic valve and the tenth electromagnetic valve respectively.
Preferably, the steam pressure introduced by the steam pipeline is not less than 0.3MPa, and the evaporation capacity is not less than 0.445m3H; the temperature of the condensed water introduced into the cooling water pipeline is 7-17 ℃, and the circulation is not less than 21.6m3/h。
Preferably, both ends of the water storage tank are provided with differential pressure liquid level meters, and the differential pressure liquid level meters are connected with the control system.
Preferably, a pressure sensor and a safety valve are arranged at the top of the water storage tank at intervals, and the pressure sensor and the safety valve are respectively connected with the control system.
Preferably, a pressure transmitter is arranged on the circulating pipeline and connected with the control system.
Preferably, the circulation pipeline is located the water storage tank with be equipped with conductivity tester and row waste water pipe in proper order between the scavenge pipe, be equipped with row waste water solenoid valve on the row waste water pipe, conductivity tester with row waste water solenoid valve connects respectively control system, total solenoid valve is established row waste water pipe with between the scavenge pipe.
The utility model has the advantages that:
1. the utility model provides a freeze dryer circulation cleaning equipment, when needs disinfect to circulation pipeline, control system control master solenoid valve, circulating pump and third solenoid valve open, make the water in the water storage tank flow at the circulation pipeline inner loop to make steam constantly heat up the water in the circulation pipeline through the heat exchanger, reach 121 ℃ of temperature after, continue to control 121 ℃ of hot water and flow at least 30 minutes in the circulation pipeline, in order to disinfect to circulation pipeline. The disinfection is internal circulation water, thus achieving the purpose of saving water. When the freeze dryer needs to be sterilized, the control system controls the second electromagnetic valve to be opened so as to inject the hot water with the temperature of 121 ℃ into the freeze dryer through the cleaning pipe for sterilization. After the circulation pipeline and the freeze dryer are disinfected, the control system controls the third electromagnetic valve to be closed and controls the fourth electromagnetic valve to be opened, so that the condensed water continuously cools the water in the circulation pipeline through the heat exchanger until the water temperature reaches below 80 ℃. When the freeze dryer needs to be cleaned, the control system controls the second electromagnetic valve to be opened, hot water in the water storage tank is injected into the freeze dryer through the cleaning pipe, the freeze dryer is cleaned, and waste water generated after disinfection and cleaning of the freeze dryer is discharged to the outside from a waste discharge port of the freeze dryer. The utility model discloses not only can utilize high-temperature water to wash and disinfect the freeze dryer, can also disinfect the circulation pipeline that send water, increase the safe handling of freeze dryer.
2. The utility model provides a freeze dryer circulation cleaning equipment, water storage tank top are equipped with the respirator, make the water storage tank keep at the ordinary pressure state always to regularly utilize the superheated steam in the water storage tank to disinfect to the respirator, further improve whole cleaning equipment's security.
3. The utility model provides a freeze dryer circulation cleaning equipment can disinfect or wash many freeze dryers simultaneously, has improved freeze dryer circulation cleaning equipment's utilization ratio.
Drawings
Fig. 1 is a schematic structural diagram of a cycle cleaning device of a freeze dryer provided by an embodiment of the present invention;
fig. 2 is a layout diagram of a heat exchanger in a circulating cleaning device of a freeze dryer provided by an embodiment of the present invention;
fig. 3 is a schematic connection diagram of a water storage tank and a respirator in a circulating cleaning device of a freeze dryer provided by an embodiment of the present invention;
fig. 4 is a schematic connection diagram of a control system in a circulation cleaning device of a freeze dryer according to an embodiment of the present invention.
In the figure, 1-a freeze dryer, 2-a control system, 3-a water storage tank, 4-a circulation pipeline, 5-a steam pipeline, 6-a cooling water pipeline, 7-a water injection pipeline, 8-a first electromagnetic valve, 9-a general electromagnetic valve, 10-a circulation pump, 11-a heat exchanger, 12-a temperature sensor, 13-a cleaning pipe, 14-a second electromagnetic valve, 15-a third electromagnetic valve, 16-a fourth electromagnetic valve, 17-a respirator, 18-an air inlet pipe, 19-a ventilation pipeline, 20-a fifth electromagnetic valve, 21-a sixth electromagnetic valve, 22-a water outlet pipe, 23-a first drainage pipeline, 24-a first bypass pipeline, 25-a first drainage valve, 26-a seventh electromagnetic valve, 27-an eighth electromagnetic valve and 28-an upper interface, 29-lower interface, 30-second drain pipeline, 31-second bypass pipeline, 32-second drain valve, 33-ninth electromagnetic valve, 34-tenth electromagnetic valve, 35-differential pressure liquid level meter, 36-pressure sensor, 37-safety valve, 38-pressure transmitter, 39-conductivity tester, 40-waste water discharge pipe and 41-waste water discharge electromagnetic valve.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4 and the following detailed description.
Please refer to fig. 1 and fig. 4 simultaneously, the embodiment of the present invention provides a circulating cleaning apparatus for a freeze dryer, which is applied to eight freeze dryers 1, including a control system 2, a water storage tank 3, a circulating pipeline 4, a steam pipeline 5 and a cooling water pipeline 6. The top interval of water storage tank 3 is equipped with two water injection pipes 7, all is equipped with first solenoid valve 8 on every water injection pipe 7 for control water injection pipe 7 is to 3 water injections of water storage tank. The two ends of the circulating pipeline 4 are respectively connected with the top and the bottom of the water storage tank 3. The circulation pipeline 4 is provided with a main electromagnetic valve 9, a circulation pump 10, a heat exchanger 11, five temperature sensors 12 and eight cleaning pipes 13 at intervals. Each cleaning tube 13 is provided with a second electromagnetic valve 14 and is connected with a freeze dryer 1 respectively. The heat exchanger 11 is connected to the steam line 5 and the cooling water line 6, respectively. The inlet of the steam pipeline 5 is provided with a third electromagnetic valve 15, and the inlet of the cooling water pipeline 6 is provided with a fourth electromagnetic valve 16. The control system 2 is respectively connected with a main electromagnetic valve 9, a circulating pump 10, a temperature sensor 12, a first electromagnetic valve 8, a second electromagnetic valve 14, a third electromagnetic valve 15 and a fourth electromagnetic valve 16.
When the water storage tank is used, when the circulating pipeline 4 needs to be disinfected, the control system 2 respectively controls the main electromagnetic valve 9, the circulating pump 10 and the third electromagnetic valve 15 to be opened, so that water in the water storage tank 3 flows out of the tank bottom, is pumped into the circulating pipeline 4 through the circulating pump 10 and flows back to the tank top; meanwhile, the steam conveyed by the steam pipeline 5 continuously heats the water in the circulating pipeline 4 through the heat exchanger 11 until the temperature sensor 12 monitors that the water temperature reaches 121 ℃, and then the hot water at 121 ℃ is continuously controlled to flow in the circulating pipeline 4 for at least 30 minutes so as to disinfect the circulating pipeline 4. When the freeze dryer 1 needs to be sterilized, the control system 2 controls the second electromagnetic valve 14 to be opened, so that the hot water with the temperature of 121 ℃ is injected into the freeze dryer 1 through the cleaning pipe 13 for sterilization. After the circulation pipeline 4 and the freeze dryer 1 are disinfected, the control system 2 controls the third electromagnetic valve 15 to be closed and controls the fourth electromagnetic valve 16 to be opened, so that the condensed water conveyed by the cooling water pipeline 6 continuously cools the water in the circulation pipeline 4 through the heat exchanger 11 until the temperature sensor 12 monitors that the water temperature reaches below 80 ℃, and the control system 2 closes the fourth electromagnetic valve 16. When the freeze dryer 1 needs to be cleaned, the control system 2 controls the second electromagnetic valve 14 to be opened, so that hot water in the water storage tank 3 is injected into the freeze dryer 1 through the cleaning pipe 13, the freeze dryer 1 is cleaned, and the sterilized and cleaned wastewater of the freeze dryer 1 is discharged to the outside from the waste discharge port of the freeze dryer 1.
Further, referring to fig. 3 and 4, in the present embodiment, a breather 17 is installed at the top of the water storage tank 3 for keeping the interior of the water storage tank 3 at a normal pressure. One end of the respirator 17 is communicated with the atmosphere through an air inlet pipe 18, and the other end is communicated with the water storage tank 3 through a ventilation pipeline 19. The air inlet pipe 18 is provided with a fifth electromagnetic valve 20, the vent pipeline 19 is provided with a sixth electromagnetic valve 21, and the fifth electromagnetic valve 20 and the sixth electromagnetic valve 21 are respectively connected with the control system 2. The control system 2 controls the fifth electromagnetic valve 20 and the sixth electromagnetic valve 21 to open, and air enters the water storage tank 3 from the air inlet pipe 18, the respirator 17 and the ventilation pipeline 19 in sequence to maintain the normal pressure state in the water storage tank 3. The fifth solenoid valve 20 and the sixth solenoid valve 21 are in the normally open state.
The breather 17 is further provided with a drain pipe 22 communicated with the vent pipe 19, and one end of the drain pipe 22 far away from the breather 17 is respectively connected with a first drain pipe 23 and a first bypass pipe 24. The first drain pipeline 23 is provided with a first drain valve 25 and a seventh electromagnetic valve 26, the first bypass pipeline 24 is provided with an eighth electromagnetic valve 27, and the control system 2 is respectively connected with the first drain valve 25, the seventh electromagnetic valve 26 and the eighth electromagnetic valve 27. When the respirator 17 needs to be disinfected, the control system 2 controls the fifth electromagnetic valve 20 to be closed, and simultaneously controls the sixth electromagnetic valve 21, the first drain valve 25 and the seventh electromagnetic valve 26 to be opened, superheated steam emitted by water with the temperature of 121 ℃ in the water storage tank 3 enters the respirator 17 from the vent pipeline 19 so as to disinfect the respirator 17, and finally steam condensate water is discharged from the drain pipe 22 and the first drain pipeline 23 in sequence. When the first drain line 23 is in the unblocked state, the control system 2 closes the first bypass line 24 by the eighth solenoid valve 27, so that the steam condensate is discharged from the first drain line 23. When the first drain line 23 fails, the control system 2 opens the first bypass line 24 through the eighth solenoid valve 27 to discharge the steam condensate from the first bypass line 24. Since first trap 25 is susceptible to failure, first bypass line 24 is provided as a backup line to increase the safety and sustained use of the entire line.
Further, referring to fig. 2 and fig. 4, in the present embodiment, both ends of the heat exchanger 11 are respectively provided with an upper connector 28 and a lower connector 29, the upper connector 28 is respectively connected to the inlet of the steam pipeline 5 and the outlet of the cooling water pipeline 6, and the lower connector 29 is respectively connected to the outlet of the steam pipeline 5 and the inlet of the cooling water pipeline 6. The hot steam in the steam pipeline 5 enters the heat exchanger 11 from the upper connector 28 and then flows out from the lower connector 29 of the heat exchanger 11 so as to heat the water in the circulating pipeline 4 in the heat exchanger 11. The condensed water in the cooling water pipeline 6 enters the heat exchanger 11 from the lower interface 29 and flows out from the upper interface 28 of the heat exchanger 11 so as to align the water in the circulating pipeline 4 in the heat exchanger 11And (5) cooling. The outlet of the steam line 5 is used for discharging steam condensate. The outlet of the steam pipeline 5 is connected with a second drain pipeline 30 and a second bypass pipeline 31 respectively, a second drain valve 32 and a ninth electromagnetic valve 33 are arranged on the second drain pipeline 30, and a tenth electromagnetic valve 34 is arranged on the second bypass pipeline 31. Control system 2 is connected to second trap 32, ninth solenoid valve 33, and tenth solenoid valve 34, respectively. When the second drain line 30 is in the unblocked state, the control system 2 closes the second bypass line 31 by the tenth solenoid valve 34, so that the steam condensate is discharged from the second drain line 30. When the second drain line 30 fails, the control system 2 opens the second bypass line 31 via the tenth solenoid valve 34 to discharge steam condensate from the second bypass line 31. Second bypass line 31 is provided as a backup line to increase the safety and sustained use of the entire line since second trap 32 is prone to failure. The steam pressure introduced into the steam pipeline 5 is not less than 0.3MPa, and the evaporation capacity is not less than 0.445m3H; the temperature of the condensed water introduced into the cooling water pipeline 6 is 7-17 ℃, and the circulation is not less than 21.6m3/h。
Further, referring to fig. 1 and fig. 4, in the present embodiment, a differential pressure liquid level meter 35 is disposed at both ends of the water storage tank 3, and the differential pressure liquid level meter 35 is connected to the control system 2. The differential pressure liquid level gauge 35 is used to detect the liquid level in the water storage tank 3. When the differential pressure liquid level meter 35 detects that the liquid level in the water storage tank 3 is lower than the set value, the differential pressure liquid level meter 35 sends a signal to the control system 2, and the control system 2 receives the signal when the differential pressure liquid level meter 35 controls the first electromagnetic valve 8 to be opened so that the water injection pipe 7 injects water to the water storage tank 3. When the differential pressure liquid level meter 35 detects that the liquid level in the water storage tank 3 reaches a set value, the differential pressure liquid level meter 35 sends a signal to the control system 2, and the control system 2 receives the signal of the differential pressure liquid level meter 35 and then controls the first electromagnetic valve 8 to close. By the design, the liquid level in the water storage tank 3 can be ensured to be at a stable value, and water shortage or overflow is prevented.
Further, in the present embodiment, a pressure sensor 36 and a safety valve 37 are further provided at an interval on the top of the water storage tank 3, and the pressure sensor 36 and the safety valve 37 are respectively connected to the control system 2. When the pressure sensor 36 detects that the pressure in the water storage tank 3 exceeds a set value, the pressure sensor 36 sends a signal to the control system 2, and the control system 2 receives the signal from the pressure sensor 36 and then controls the safety valve 37 to open so as to discharge the air pressure in the water storage tank 3 outwards, so that the water storage tank 3 is prevented from bursting due to the overlarge internal pressure, and the safe use of the water storage tank 3 is further effectively guaranteed.
Further, in the present embodiment, a pressure transmitter 38 is provided on the circulation line 4, and the pressure transmitter 38 is connected to the control system 2. The control system 2 monitors the pressure change of the water in the circulation line 4 according to the pressure transmitter 38, thereby converting the flow change of the water. Because of the flowmeter leads to the measuring result to have the deviation because of the temperature variation of water easily, so the utility model discloses replace the flowmeter with pressure transmitter 38, can obtain more accurate measured data. The circulation pipeline 4 is positioned between the water storage tank 3 and the cleaning pipe 13 and is sequentially provided with a conductivity tester 39 and a waste water discharge pipe 40, the waste water discharge pipe 40 is provided with a waste water discharge electromagnetic valve 41, and the conductivity tester 39 and the waste water discharge electromagnetic valve 41 are respectively connected with the control system 2. The solenoid valve 9 is arranged between the waste drain 40 and the cleaning pipe 13. When the injection water of the freeze dryer 1 is required, the conductivity tester 39 is used for monitoring the conductivity of the water in the circulating pipeline 4 and transmitting data to the control system 2, when the control system 2 finds that the data is not in the set value range, the control system 2 controls the main electromagnetic valve 9 to be closed, and then controls the waste water discharge electromagnetic valve 41 to be opened, so that the unqualified water in the water storage tank 3 is discharged from the waste water discharge pipe 40.
It will be appreciated that the freeze dryer 1 is not limited to eight, and in other embodiments, it may be more or less than eight.
It is understood that the water injection pipes 7 are not limited to two, and may be more or less than two in other embodiments.
It is understood that the cleaning tubes 13 are not limited to eight, and in other embodiments, there may be more or less than eight.
It is understood that the temperature sensors 12 are not limited to five, and in other embodiments, may be more or less than five.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A circulating cleaning device of a freeze dryer is applied to the freeze dryer and is characterized by comprising a control system, a water storage tank, a circulating pipeline, a steam pipeline and a cooling water pipeline; a water injection pipe is arranged at the top of the water storage tank, and a first electromagnetic valve is arranged on the water injection pipe; the two ends of the circulating pipeline are respectively connected with the water storage tank, a main electromagnetic valve, a circulating pump, a heat exchanger, a temperature sensor and a cleaning pipe are arranged on the circulating pipeline at intervals, and the cleaning pipe is provided with a second electromagnetic valve and is connected with the freeze dryer; the heat exchanger is respectively connected with the steam pipeline and the cooling water pipeline, a third electromagnetic valve is arranged at the inlet of the steam pipeline, a fourth electromagnetic valve is arranged at the inlet of the cooling water pipeline, and the control system is respectively connected with the main electromagnetic valve, the circulating pump, the temperature sensor, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve.
2. The circulating cleaning equipment of the freeze dryer as claimed in claim 1, wherein a breather is installed at the top of the water storage tank, one end of the breather is communicated with the atmosphere through an air inlet pipe, the other end of the breather is communicated with the water storage tank through an air vent pipeline, a fifth electromagnetic valve is arranged on the air inlet pipe, a sixth electromagnetic valve is arranged on the air vent pipeline, and the fifth electromagnetic valve and the sixth electromagnetic valve are respectively connected with the control system.
3. The circulating cleaning device for the freeze dryer according to claim 2, wherein the breather is further provided with a drain pipe communicated with the vent pipeline, one end of the drain pipe, far away from the breather, is connected with a first drain pipeline and a first bypass pipeline respectively, the first drain pipeline is provided with a first drain valve and a seventh electromagnetic valve, the first bypass pipeline is provided with an eighth electromagnetic valve, and the control system is connected with the first drain valve, the seventh electromagnetic valve and the eighth electromagnetic valve respectively.
4. The circulating cleaning device of the freeze dryer as claimed in claim 1, wherein both ends of the heat exchanger are respectively provided with an upper interface and a lower interface, the upper interface is respectively connected with the inlet of the steam pipeline and the outlet of the cooling water pipeline, and the lower interface is respectively connected with the outlet of the steam pipeline and the inlet of the cooling water pipeline.
5. The circulating cleaning equipment of the freeze dryer according to claim 4, wherein the outlet of the steam pipeline is connected with a second drain pipeline and a second bypass pipeline respectively, the second drain pipeline is provided with a second drain valve and a ninth electromagnetic valve, the second bypass pipeline is provided with a tenth electromagnetic valve, and the control system is connected with the second drain valve, the ninth electromagnetic valve and the tenth electromagnetic valve respectively.
6. The circulating cleaning equipment of the freeze dryer as claimed in claim 1, wherein the steam pressure introduced by the steam pipeline is not less than 0.3MPa, and the evaporation capacity is not less than 0.445m 3/h; the temperature of the condensed water introduced into the cooling water pipeline is 7-17 ℃, and the circulation is not less than 21.6m 3/h.
7. The circulating cleaning equipment of the freeze dryer as claimed in claim 1, wherein a differential pressure liquid level meter is arranged at both ends of the water storage tank, and the differential pressure liquid level meter is connected with the control system.
8. The lyophilizer cycle washing apparatus of claim 1 wherein said top of said water storage tank is spaced apart by a pressure sensor and a safety valve, said pressure sensor and said safety valve being connected to said control system respectively.
9. The circulating cleaning device of the freeze dryer as claimed in claim 1, wherein a pressure transmitter is arranged on the circulating pipeline, and the pressure transmitter is connected with the control system.
10. The circulating cleaning equipment of the freeze dryer according to claim 1, wherein a conductivity tester and a waste water discharge pipe are sequentially arranged between the water storage tank and the cleaning pipe of the circulating pipeline, a waste water discharge electromagnetic valve is arranged on the waste water discharge pipe, the conductivity tester and the waste water discharge electromagnetic valve are respectively connected with the control system, and the master electromagnetic valve is arranged between the waste water discharge pipe and the cleaning pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920297327.8U CN209829675U (en) | 2019-03-08 | 2019-03-08 | Circulating cleaning equipment of freeze dryer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920297327.8U CN209829675U (en) | 2019-03-08 | 2019-03-08 | Circulating cleaning equipment of freeze dryer |
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| CN209829675U true CN209829675U (en) | 2019-12-24 |
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| CN201920297327.8U Active CN209829675U (en) | 2019-03-08 | 2019-03-08 | Circulating cleaning equipment of freeze dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643702A (en) * | 2020-05-13 | 2020-09-11 | 石家庄吉瑞节能技术有限公司 | Automatic control system for continuous sterilization |
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2019
- 2019-03-08 CN CN201920297327.8U patent/CN209829675U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643702A (en) * | 2020-05-13 | 2020-09-11 | 石家庄吉瑞节能技术有限公司 | Automatic control system for continuous sterilization |
| CN111643702B (en) * | 2020-05-13 | 2021-12-21 | 石家庄吉瑞节能技术有限公司 | Automatic control system for continuous sterilization |
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