CN105028608A - Pasteurization system for egg liquid - Google Patents
Pasteurization system for egg liquid Download PDFInfo
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- CN105028608A CN105028608A CN201510512304.0A CN201510512304A CN105028608A CN 105028608 A CN105028608 A CN 105028608A CN 201510512304 A CN201510512304 A CN 201510512304A CN 105028608 A CN105028608 A CN 105028608A
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Abstract
The invention discloses a pasteurization system for an egg liquid and belongs to the technical field of automatic production. The system mainly comprises a combined heat exchange plate, a thermal insulation coil, a heating accessory, an energy recovery accessory, a power pump and a pneumatic valve bank. An enclosed pure water circulation system is adopted in the system, so that the defect of potential safety hazards caused by direct heat exchange between cold and hot materials in a traditional energy recovery unit is avoided; the flow direction of a cleanout fluid in the heat exchange plate can be adjusted by changing the on-off state of a pneumatic valve; and positive and reverse cleaning of the heat exchange plate is realized. In addition, small-cycle repeated sterilization on the material in a plate preheating section, a heating section and a thermal insulation pipe can be realized under the exceptional circumstance that the sterilization effect of the sterilized egg liquid does not meet the requirements; the condition that the product reaches the set sterilization effect is ensured; and a pre-cooling section and a cooling section behind the thermal insulation pipe are prevented from being polluted during abnormal sterilization.
Description
Technical field
The present invention relates to a kind of egg liquid pasteurization system, belong to automatic producing technology field.
Background technology
Egg product bar murderous intention is the most critical equipment ensureing product quality in whole egg processing, because egg fluid viscosity is large, to responsive to temperature, also containing materials such as egg film silks in egg liquid, and bar kills and confidentially can process the complete egg liquid raw materials of different nature such as egg yolk liquid, protein liquid, egg pulp and salt adding sugaring egg liquid, so have very special and strict requirement to egg product bar murderous intention.
Current existing bar kills unit and mainly contains board-like sterilization unit and the large class of tubular sterilization machine group two, and wherein, board-like sterilization unit plate easily blocks, and be not easy thorough cleaning, the continuous sterilizing time is restricted, and affects production efficiency; Tubular sterilization machine group structure is more complicated, is unsuitable for processing full-bodied material, is difficult to process the complete egg liquid raw materials of different nature such as egg yolk liquid, protein liquid, egg pulp and salt adding sugaring egg liquid in a bar murderous intention.
The present invention freely flows the use of the technology and equipment such as heat exchange plate, two-way purging system by wide runner, design a kind of egg liquid pasteurization system, this disinfection system may be used for the egg liquid raw materials of different nature such as process egg yolk liquid, protein liquid, egg pulp and salt adding sugaring egg liquid, system not easily blocks, easy to clean, the continuous sterilizing time is long, guarantees to reach expection bactericidal effect.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of egg liquid pasteurization system, and this system mainly comprises combined type heat exchange plate, heat-insulating coil pipe, heating auxiliary, energy regenerating auxiliary, kinetic pump, pneumatic operated valve group.Described combined type heat exchange plate is that wide runner freely flows, non-contact-point between adjacent plate; Combined type heat exchange plate is designed to four-part form combination, is divided into material preheating section, bringing-up section, precooling zone and cooling section; The import of the recirculated water of precooling zone is connected with the outlet of the recirculated water of preheating section, and the circulating water outlet of precooling zone is connected with the circulating water intake of preheating section.Described heat-insulating coil pipe is located between the bringing-up section of combined type heat exchange plate, precooling zone.Described heating auxiliary is for providing the hot water of the bringing-up section of combined type heat exchange plate.Described energy regenerating auxiliary comprises temperature sensor, circulation bucket, pure water centrifugal pump, and the preheating section of circulation bucket and combined type heat exchange plate and precooling zone connect and compose closed pure water circulating system by stainless steel pipes.
Described heating auxiliary comprises brazing sheet, temperature sensor, steam rates control valve, hot water barrel, hot water centrifugal pump.
Described brazing sheet is used for steam to the heating of water.To the aperture of degree of heat by steam rates control valve and the frequency co-controlling of hot water centrifugal pump of water.
Described hot water barrel is connected with the bringing-up section of combined type heat exchange plate, and hot water barrel is equipped with liquid-level switch and pneumatic angle pedestal valve, realizes automatic water supplement.
The hot water temperature that the aperture of described steam rates control valve is detected according to the upper temperature sensor of hot water line by PLC automatically adjusts, and realizes the accurate temperature controlling to hot water.
Described recirculated water barreled has liquid-level switch and pneumatic angle pedestal valve, and is connected with pure water centrifugal pump.
Described kinetic pump mainly comprises main impeller pump, supercharging impeller pump, the CIP of supplying and cleans centrifugal pump.
The described main rotating speed for impeller pump and supercharging impeller pump can carry out VFC according to the pipeline material pressure in pipeline detected by pressure sensor by PLC.
The described main impeller pump that supplies is used for providing power for the flowing of material in disinfection system, comprises and material is fed combined type heat exchange plate and heat-insulating coil pipe from compensator, and after sterilization product is proceeded to follow-up workshop.
Described supercharging impeller pump is arranged on precooling zone heat exchange plate exit.
Described pneumatic operated valve group mainly comprises the first Pneumatic single-seat valve, the second Pneumatic single-seat valve, the 3rd Pneumatic single-seat valve, the first Pneumatic butterfly valve, the second Pneumatic butterfly valve, pneumatic two-seater double seal valve, the 3rd Pneumatic butterfly valve and the 4th Pneumatic butterfly valve.Wherein, the middle level of the first Pneumatic single-seat valve 3 is imported and exported as material inlet, and the upper strata of the first Pneumatic single-seat valve 3 is imported and exported and to be imported and exported with the upper strata of the 3rd Pneumatic single-seat valve 5 respectively and combined type heat exchange plate first is imported and exported 1 by pipeline and is connected; The upper strata of the second Pneumatic single-seat valve 4 is imported and exported as material outlet, and the lower floor of the first Pneumatic single-seat valve 3 imports and exports, the lower floor of the second Pneumatic single-seat valve 4 is imported and exported and is mutually connected by pipeline with the second Pneumatic butterfly valve 7; The middle level import and export of the second Pneumatic single-seat valve 4 are imported and exported 2 with combined type heat exchange plate second and are connected by pipeline; The upper strata import and export of the second Pneumatic single-seat valve 4, the middle level of the first Pneumatic butterfly valve 6, the 3rd Pneumatic single-seat valve 5 are imported and exported and are contacted by pipeline.The upper strata import and export of pneumatic two-seater double seal valve 8 export with insulating tube respectively and the 4th Pneumatic butterfly valve 10 is connected by pipeline; The lower floor of pneumatic two-seater double seal valve 8 is imported and exported and is connected by pipeline with the preheating section of combined type heat exchange plate and the 3rd Pneumatic butterfly valve 9 respectively.
In one embodiment of the invention, described egg liquid pasteurization system also comprises high pressure homogenizer, for carrying out homogeneous process to egg liquid.
In one embodiment of the invention, described egg liquid pasteurization system also comprises compensator.Described compensator, for accepting egg liquid for sterilization process, played cushioning effect before egg liquid enters combined type heat exchange plate by main confession impeller pump.The bottom of described compensator is provided with liquid-level switch and pressure sensor, for detecting in real time liquid level in compensator in production and cleaning process.Be used for controlling inlet valve switch and feed pump frequency by the pressure sensor in compensator.All can realize the low liquid level warning of compensator by the liquid-level switch of compensator or pressure sensor, ensure disinfection system safety.Described compensator is built-in spray head also, can carry out self-cleaning, without cleaning dead angle.In a kind of embodiment of invention, the capacity of described compensator is 140 be raised to 250 liters, decides according to sterilization machine setting flow rates.
It will be apparent to those skilled in the art that described egg liquid pasteurization system, as required, various sensor can be installed, such as temperature sensor, conductivity sensor, pressure sensor, and volume flowmeter and liquid-level switch etc.It will be apparent to those skilled in the art that the mounting means of various valve is that the level of this area routine is installed, valve relates to multiple import and export, is that upper, middle and lower layer is imported and exported by position mark imported and exported each under the horizontal installment state of valve.
The invention has the advantages that, first, the design of energy regenerating auxiliary saves the energy consumption of steam and frozen water in bar murderous intention heating material and cooling procedure, and closed pure water circulating system avoids the drawback that the cold and hot material direct heat transfer of conventional energy recovery unit exists potential safety hazard.Moreover, the flow direction of cleaning fluid in heat exchange plate can be adjusted by the change of pneumatic operated valve on off state, realize forward and reverse cleaning of heat exchanging plate, simultaneously kill system feeding for whole bar and discharging direction does not change, the system of guarantee has high stability.In addition, traditional sterilization unit is in process of production as occurred that bactericidal effect does not reach the situation of requirement, need material sterilization again again after cooling section cooling, cooling section after causing insulating tube is like this polluted by the suspicious material not reaching bactericidal effect, and this pollution cannot be removed in continuous sterilizing process, pollution must could be removed after stop cleaning, there is Product quality and safety hidden danger, and pasteurization system provided by the invention can realize egg liquid bactericidal effect does not after sterilization meet the requirements of in particular cases, make material at plate preheating section, partial circulating repetition sterilization is carried out in bringing-up section and insulating tube, guarantee that product reaches the bactericidal effect of setting, avoid the precooling zone when sterilization is abnormal after insulating tube and cooling section contaminated, ensure that bar system of killing is kept the safety in production continuously, avoid before sterilization and the mixing of sterilized material, ensure production safety.
Accompanying drawing explanation
Fig. 1, bar murderous intention forward cleaning view.In figure, 1: combined type heat exchange plate first is imported and exported; 2: combined type heat exchange plate second is imported and exported; 3: the first Pneumatic single-seat valves (V1S); 4: the second Pneumatic single-seat valves (V2S); 5: the three Pneumatic single-seat valves (V3S); 6: the first Pneumatic butterfly valves (V4B); 7: the second Pneumatic butterfly valves (V5B).
Fig. 2, bar murderous intention reverse cleaning view.In figure, 1: combined type heat exchange plate first is imported and exported; 2: combined type heat exchange plate second is imported and exported; 3: the first Pneumatic single-seat valves (V1S); 4: the second Pneumatic single-seat valves (V2S); 5: the three Pneumatic single-seat valves (V3S); 6: the first Pneumatic butterfly valves (V4B); 7: the second Pneumatic butterfly valves (V5B).
Fig. 3, the normal production status schematic diagram of bar murderous intention.In figure, 8: pneumatic two-seater double seal valve (V6S); 9: the three Pneumatic butterfly valves (V7B); 10: the four Pneumatic butterfly valves (V8B); 11: temperature sensor (TT1).
Fig. 4, bar murderous intention temperature anomaly view.In figure, 8: pneumatic two-seater double seal valve (V6S); 9: the three Pneumatic butterfly valves (V7B); 10: the four Pneumatic butterfly valves (V8B); 11: temperature sensor (TT1).
Detailed description of the invention
Embodiment 1 egg liquid pasteurization system
The egg liquid pasteurization system of the present embodiment mainly comprises high pressure homogenizer, compensator, combined type heat exchange plate, heat-insulating coil pipe, heating auxiliary, energy regenerating auxiliary, kinetic pump, pneumatic operated valve group.Connected by hygiene-type stainless steel tube between each several part.As required, at sensors such as relevant position mounting temperature sensor, conductivity sensor, pressure sensor, volume flowmeters.
High pressure homogenizer is used for carrying out homogeneous to egg liquid.
Compensator for accepting the egg liquid sent from front-end-of-line, and played cushioning effect at egg liquid before main confession impeller pump sends into combined type heat exchange plate.The built-in spray head of compensator, can carry out self-cleaning, without cleaning dead angle.The bottom of compensator is provided with liquid-level switch and pressure sensor, for detecting in real time liquid level in compensator in production and cleaning process.By compensator pressure sensor, the switch of inlet valve and feed pump frequency are controlled, all can realize the low liquid level warning of compensator by the liquid-level switch of compensator and pressure sensor, ensure disinfection system safety.The capacity of compensator can be 140 be raised to 250 liters, decides according to sterilization machine setting flow rates.
Described combined type heat exchange plate is designed to wide runner and freely flows, and width of flow path is 5-10 millimeter, and plate is corrugated, non-contact-point between adjacent plate.Material flows freely between plate, and material flow path is wider than traditional heat exchange plate, prevents the wall cling phenomenon of material on plate, high-viscosity material can be processed, even to heating material in production process, material is mutability not, and stream time is more than 7 hours.
Described combined type heat exchange plate is designed to four-part form combination, is divided into material preheating section, heating material section, material precooling zone and material cooling section.Material preheating section and precooling zone, can design according to energy recovery principle, adopt closed pure water to circulate by energy regenerating auxiliary, the import of precooling zone recirculated water is connected with the outlet of preheating section recirculated water, and the outlet of precooling zone recirculated water is connected with the import of preheating section recirculated water.Low-temperature pure water and high temperature egg liquid carry out heat exchange at plate material precooling zone, and high temperature egg liquid is carried out precooling, and pure water is heated simultaneously, then high temperature pure water and low temperature egg liquid carry out heat exchange at plate material preheating section, low temperature egg liquid is carried out preheating, and pure water is cooled simultaneously, and so forth.
Described energy regenerating auxiliary comprises temperature sensor, circulation bucket, pure water centrifugal pump.Described circulation bucket is connected with pure water centrifugal pump, forms closed pure water circulating system with the preheating section of combined type heat exchange plate and precooling zone by stainless steel pipes.Recirculated water barreled has liquid-level switch and pneumatic angle pedestal valve, is controlled the switch of pneumatic angle pedestal valve, realize the automatic water supplement to circulation bucket by the state of liquid-level switch.The energy consumption of steam and frozen water in bar murderous intention heating material and cooling procedure is saved in this design, turn avoid the drawback that the cold and hot material direct heat transfer of conventional energy recovery unit exists potential safety hazard simultaneously.
Described heating auxiliary comprises brazing sheet, temperature sensor, steam rates control valve, hot water barrel, hot water centrifugal pump.Brazing sheet is used for steam to the heating of bringing-up section hot water, and steam is to the aperture of the degree of heat of water by steam rates control valve and the frequency co-controlling of hot water centrifugal pump.The hot water temperature that the aperture of steam rates control valve is detected according to the upper temperature sensor of hot water line by PLC automatically adjusts, and realizes the accurate temperature controlling to hot water, ensures the accurate control to material sterilization temperature.Described hot water barrel is equipped with liquid-level switch and pneumatic angle pedestal valve, is controlled the switch of pneumatic angle pedestal valve by the state of liquid-level switch, realize to hot water barrel's automatic water supplement.
Described kinetic pump mainly comprises main impeller pump, supercharging impeller pump, the CIP of supplying and cleans centrifugal pump.Wherein the main rotating speed for impeller pump and supercharging impeller pump can carry out variable frequency adjustment.The described main impeller pump that supplies is used for providing power for the flowing of material in disinfection system, comprises and material is fed combined type heat exchange plate and heat-insulating coil pipe from compensator, and after sterilization product is proceeded to follow-up workshop.The main rotating speed for impeller pump kills internal system pipeline pressure situation by PLC according to the bar that pressure sensor detects and carries out automatic frequency-conversion adjustment, realizes stable charging flow velocity.Described supercharging impeller pump is arranged on combined type heat exchange plate precooling zone exit, rotating speed kills internal system pipeline pressure situation by PLC according to the bar that pressure sensor detects and carries out automatic frequency-conversion adjustment, be exclusively used in the high-viscosity material sterilization of viscosity at 700-6000cp, make this bar system of killing possess the ability of process high-viscosity material.
Pneumatic operated valve group for purging system is made up of 5 pneumatic operated valves, comprise the first Pneumatic single-seat valve (3), the second Pneumatic single-seat valve (4), the 3rd Pneumatic single-seat valve (5), the first Pneumatic butterfly valve (6), the second Pneumatic butterfly valve (7), pass through Combination Design, can realize clinging to the forward that kills system heat exchange plate and oppositely clean alternately, can ensure to realize heat exchange plate cleaning without dead angle, ensure that bar kills system clean and runs, avoid Conventional plate-type heat exchanger to need frequently to unpick and wash the drawback of plate.As depicted in figs. 1 and 2, it is that Pneumatic single-seat valve is opened that definition Pneumatic single-seat valve upper strata is imported and exported when importing and exporting be communicated with middle level, middle level import and export are defined as Pneumatic single-seat valve when importing and exporting be communicated with lower floor and close, being that Pneumatic butterfly valve is opened during the pipeline communication of Pneumatic butterfly valve both sides, is that Pneumatic butterfly valve closes when Pneumatic butterfly valve two side ducts disconnects.When pneumatic operated valve group is in state shown in Fig. 1, namely be in the first Pneumatic single-seat valve to open, second Pneumatic single-seat valve is opened, 3rd Pneumatic single-seat valve closes, first Pneumatic butterfly valve closes, second Pneumatic butterfly valve open state time, cleaning fluid by combined type heat exchange plate first import and export (1) flow into, by combined type heat exchange plate second import and export (2) flow out; When pneumatic operated valve group is in state shown in Fig. 2, namely be in the first Pneumatic single-seat valve to close, second Pneumatic single-seat valve closes, 3rd Pneumatic single-seat valve is opened, first Pneumatic butterfly valve is opened, during the state that the second Pneumatic butterfly valve closes, cleaning fluid is imported and exported (2) by combined type heat exchange plate second and is flowed into, and imports and exports (1) flow out by combined type heat exchange plate first.The flow direction of cleaning fluid in heat exchange plate can be adjusted by the change of pneumatic operated valve on off state, realize forward and reverse cleaning of heat exchanging plate.Simultaneously kill system feeding for whole bar and discharging direction does not change, the system of guarantee has high stability.
Pneumatic operated valve group for bactericidal effect safeguards system is made up of 3 pneumatic operated valves, comprises pneumatic two-seater double seal valve (8), the 3rd Pneumatic butterfly valve (9), the 4th Pneumatic butterfly valve (10).The upper strata of pneumatic two-seater double seal valve is imported and exported and is connected by pipeline with the 4th Pneumatic butterfly valve, and the lower floor of pneumatic two-seater double seal valve is imported and exported and is connected by pipeline with the 3rd Pneumatic butterfly valve.Defining when the import and export of pneumatic two-seater double seal valve upper strata are imported and exported be communicated with lower floor is that pneumatic two-seater double seal valve is opened, pneumatic two-seater double seal valve upper strata is imported and exported and imported and exported when disconnecting with lower floor is that pneumatic two-seater double seal valve closes, being that Pneumatic butterfly valve is opened during the pipeline communication of Pneumatic butterfly valve both sides, is that Pneumatic butterfly valve closes when Pneumatic butterfly valve two side ducts disconnects.Pass through Combination Design, when can realize that egg liquid bactericidal effect does not meet the requirements of special circumstances after the sterilization likely occurred, can make material in plate preheating section, bringing-up section and insulating tube, carry out partial circulating and repeat sterilization, guarantee that product reaches the bactericidal effect of setting, avoid polluting rear segment pipe simultaneously.As shown in Figure 3 and Figure 4, during normal production status, pneumatic two-seater double seal valve (8) is closed, 3rd Pneumatic butterfly valve (9), the 4th Pneumatic butterfly valve (10) are opened, and material kills system according to the order of preheating section, bringing-up section, insulating tube, precooling zone, cooling section normal through bar; When temperature sensor TT1 detects temperature of charge lower than required sterilization temperature, pneumatic two-seater double seal valve (8) is opened, 3rd Pneumatic butterfly valve (9), the 4th Pneumatic butterfly valve (10) are closed, material is at preheating section, carry out partial circulating between bringing-up section and insulating tube, namely the state shown in Fig. 4, until temperature sensor TT1 show temperature of charge reached setting sterilization temperature after after certain time delay, pneumatic operated valve switches back the state shown in Fig. 3, returns to normal production.Traditional sterilization unit in process of production, the situation of requirement is not reached if there is bactericidal effect, need material sterilization again again after cooling section cooling, cooling section after causing insulating tube is like this polluted by the suspicious material not reaching bactericidal effect, and this pollution cannot be removed in continuous sterilizing process, pollution must could be removed after stop cleaning, there is Product quality and safety hidden danger, bactericidal effect safeguards system involved in the present invention can avoid the precooling zone when sterilization is abnormal after insulating tube and cooling section contaminated, ensure that bar system of killing is kept the safety in production continuously.And the pneumatic two-seater double seal valve (8) used in bactericidal effect safeguards system involved in the present invention is two-seater double containment mixing-preventing valve, can avoids before sterilization completely and the mixing of sterilized material, ensure production safety.
Although the present invention with preferred embodiment openly as above; but it is also not used to limit the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention; all can do various changes and modification, what therefore protection scope of the present invention should define with claims is as the criterion.
Claims (10)
1. an egg liquid pasteurization system, is characterized in that, mainly comprises combined type heat exchange plate, heat-insulating coil pipe, heating auxiliary, energy regenerating auxiliary, kinetic pump, pneumatic operated valve group; Described combined type heat exchange plate is that wide runner freely flows, non-contact-point between adjacent plate; Combined type heat exchange plate is designed to four-part form combination, be divided into material preheating section, bringing-up section, precooling zone and cooling section, the import of the recirculated water of precooling zone is connected with the outlet of the recirculated water of preheating section, and the circulating water outlet of precooling zone is connected with the circulating water intake of preheating section; Described heat-insulating coil pipe is located between the bringing-up section of combined type heat exchange plate, precooling zone; Described heating auxiliary is for providing the hot water of the bringing-up section of combined type heat exchange plate; Described energy regenerating auxiliary comprises temperature sensor, circulation bucket, pure water centrifugal pump; The preheating section that described circulation bucket is combined type heat exchange plate and precooling zone provide recirculated water, and the preheating section of circulation bucket and combined type heat exchange plate and precooling zone connect and compose closed pure water circulating system by pipeline.
2. a kind of egg liquid pasteurization system according to claim 1, is characterized in that, be also provided with various sensor, comprise temperature sensor, conductivity sensor, pressure sensor, and volume flowmeter and liquid-level switch.
3. a kind of egg liquid pasteurization system according to claim 1, is characterized in that, also comprise high pressure homogenizer, for carrying out homogeneous process to egg liquid before sterilization.
4. a kind of egg liquid pasteurization system according to claim 1, is characterized in that, also comprise compensator, before egg liquid enters combined type heat exchange plate, play cushioning effect.
5. a kind of egg liquid pasteurization system according to claim 1, it is characterized in that, described heating auxiliary comprises brazing sheet, temperature sensor, steam rates control valve, hot water barrel, hot water centrifugal pump.
6. a kind of egg liquid pasteurization system according to claim 5, it is characterized in that, described hot water barrel is connected with the bringing-up section of combined type heat exchange plate, and hot water barrel is equipped with liquid-level switch and pneumatic angle pedestal valve to realize automatic water supplement.
7. a kind of egg liquid pasteurization system according to claim 5 or 6, is characterized in that, described brazing sheet is used for steam to the heating of water.
8. according to the arbitrary described a kind of egg liquid pasteurization system of claim 1-6, it is characterized in that, described kinetic pump mainly comprises main impeller pump, supercharging impeller pump, the CIP of supplying and cleans centrifugal pump; Describedly mainly provide power for impeller pump for the flowing of material in disinfection system.
9. a kind of egg liquid pasteurization system according to claim 8, it is characterized in that, described supercharging impeller pump is arranged on the heat exchange plate exit of precooling zone.
10. according to claim 9 or the arbitrary described a kind of egg liquid pasteurization system of claim 1-6, it is characterized in that, described pneumatic operated valve group mainly comprises the first Pneumatic single-seat valve (3), the second Pneumatic single-seat valve (4), the 3rd Pneumatic single-seat valve (5), the first Pneumatic butterfly valve (6), the second Pneumatic butterfly valve (7), pneumatic two-seater double seal valve (8), the 3rd Pneumatic butterfly valve (9) and the 4th Pneumatic butterfly valve (10); The middle level of the first Pneumatic single-seat valve (3) is imported and exported as material inlet, and the upper strata of the first Pneumatic single-seat valve (3) is imported and exported and to be imported and exported with the upper strata of the 3rd Pneumatic single-seat valve (5) respectively and combined type heat exchange plate first is imported and exported (1) by pipeline and is connected; The upper strata of the second Pneumatic single-seat valve (4) is imported and exported as material outlet, and the lower floor of the first Pneumatic single-seat valve (3) imports and exports, the lower floor of the second Pneumatic single-seat valve (4) is imported and exported and is mutually connected by pipeline with the second Pneumatic butterfly valve (7); The middle level import and export of the second Pneumatic single-seat valve (4) are imported and exported (2) with combined type heat exchange plate second and are connected by pipeline; The middle level of the upper strata import and export of the second Pneumatic single-seat valve (4), the first Pneumatic butterfly valve (6), the 3rd Pneumatic single-seat valve (5) is imported and exported and is contacted by pipeline; The upper strata import and export of pneumatic two-seater double seal valve (8) export with insulating tube respectively and the 4th Pneumatic butterfly valve (10) is connected by pipeline; The lower floor of pneumatic two-seater double seal valve (8) is imported and exported and is connected by pipeline with the preheating section of combined type heat exchange plate and the 3rd Pneumatic butterfly valve (9) respectively.
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Cited By (1)
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| CN110694994A (en) * | 2019-09-20 | 2020-01-17 | 江苏新美星包装机械股份有限公司 | UHT positive and negative belt cleaning device |
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