Multi-working-condition segmented combined type ejector conversion assembly and online automatic conversion device
Technical Field
A multi-working-condition segmented combined type ejector conversion assembly and an online automatic conversion device belong to the technical field of ejectors.
Background
In the jet refrigeration system, an ejector is used as a refrigeration part, high-temperature and high-pressure refrigerant steam generated by a generator enters a nozzle, the refrigerant in an evaporator is injected and evaporated in a suction chamber, and the refrigerant is mixed in a mixing chamber, pressurized and decelerated in a diffusion chamber and then enters a condenser. The performance parameters of the ejector change along with the change of working conditions, and the structure of the ejector corresponding to each working condition when the performance of the ejector is optimal is unique, so that when the working conditions change, the structure of the ejector changes along with the change of the working conditions, and the fixed structure ejector cannot meet the requirement. At present, in the injectors in the prior art, each injector only aims at one working condition, and even if a combined and convertible injector exists, the injector is only replaced after shutdown, and online replacement cannot be realized.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the multi-working-condition segmented combined type ejector conversion assembly and the online automatic conversion device overcome the defects of the prior art, meet the requirement of multi-working-condition optimized operation, improve the refrigeration operation efficiency, save time and labor cost and enhance the system stability.
The technical scheme adopted by the invention for solving the technical problems is as follows: this multiplex condition segmentation combination formula sprayer conversion assembly, its characterized in that: the nozzle assembly, the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly are respectively provided with a plurality of groups which are annularly arranged, the lower parts of the nozzle assembly, the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly are respectively provided with a rotating mechanism which drives the nozzle assembly to axially rotate, and the bottom of the rotating mechanism corresponding to the nozzle assembly is connected with a translation mechanism which can drive the nozzle assembly to transversely translate.
The invention adopts a brand new combined structure, and is divided into four components according to different working modes of the ejector, each component is respectively provided with a plurality of components which can be replaced at will, preferably, the invention adopts three sets of nozzles, three sets of suction chambers, three sets of mixing chambers and three sets of diffusion chambers, and can realize the arbitrary combination of any four components through different combination modes, and different combinations can meet multiple working conditions and realize the optimized operation, thereby solving the problem that the ejector needs to be stopped to be replaced when the working conditions change, improving the operating efficiency of the injection refrigeration system, and saving the time and labor cost consumed by replacing the ejector. The time consumed by replacing the fixed structure ejector is saved, the working efficiency of the whole ejection refrigeration system is improved, and the stability of system operation is enhanced.
The nozzle assembly comprises a nozzle conversion cylinder and a nozzle, one end of the nozzle is embedded in one end part of the nozzle conversion cylinder close to the suction chamber assembly, and the other end of the nozzle is embedded in the suction chamber assembly.
The lower part of the nozzle conversion cylinder is connected with a rotating mechanism corresponding to the nozzle assembly, the rotating mechanism comprises a nozzle conversion support and a nozzle conversion motor, the nozzle conversion motor is installed on the nozzle conversion support, and an output shaft of the nozzle conversion motor is horizontally arranged and connected with the lower part of the nozzle conversion cylinder.
The translation mechanism comprises a translation motor, a translation rotating shaft and a motor mounting support, the translation rotating shaft is divided into two parts, one part is a light bar, the other part is a lead screw, the upper part of the motor mounting support is respectively and fixedly connected with rotating mechanisms correspondingly arranged on the lower parts of the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly, the light bar part of the translation rotating shaft penetrates through the motor mounting support, and the lead screw part of the translation rotating shaft is in threaded connection with the rotating mechanisms corresponding to the nozzle assemblies.
The suction chamber assembly comprises a suction chamber conversion cylinder, fastening screws and a suction chamber sealing bush, the suction chamber sealing bush is sleeved on the inner wall of the suction chamber conversion cylinder, the fastening screws are arranged outside the suction chamber conversion cylinder, and a plurality of injection ports are formed in the suction chamber conversion cylinder.
The mixing chamber assembly comprises a mixing chamber conversion barrel, a mixing chamber sealing bush and a mixing chamber, wherein the mixing chamber is arranged in the mixing chamber conversion barrel, and the mixing chamber sealing bush is arranged between the mixing chamber conversion barrel and the mixing chamber.
The diffusion chamber component comprises a diffusion chamber conversion cylinder, a diffusion chamber sealing lining and a diffusion chamber, wherein the diffusion chamber is installed in the diffusion chamber conversion cylinder, and the diffusion chamber sealing lining is arranged between the diffusion chamber conversion cylinder and the diffusion chamber.
On-line automatic switching device that multiplex condition segmentation combination formula sprayer conversion assembly formed which characterized in that: the device comprises an ejector conversion assembly, a plurality of electromagnetic valves, a generator outlet, a sealing water jacket and a plurality of groups of electromagnetic valves, wherein the outer part of the ejector conversion assembly is provided with the sealing water jacket, a nozzle component of the ejector conversion assembly is simultaneously connected with the generator outlet through a pipeline and the plurality of electromagnetic valves, an intake chamber component is simultaneously connected with the evaporator outlet through a pipeline and the plurality of electromagnetic valves, and an outlet of a diffusion chamber component is simultaneously connected with an inlet of a condenser through a pipeline and the plurality of electromagnetic valves.
In the process of system operation, when the working condition changes, the on-line automatic conversion device realizes on-line replacement of the nozzle assembly, the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly through respective rotating mechanisms, saves the time consumed by replacing the fixed structure ejector, improves the working efficiency of the whole ejection refrigeration system, and enhances the stability of system operation. Meanwhile, the refrigerant is isolated from the external environment through the sealing water jacket, the sealing water jacket circulating water path is connected with the condenser water path, and the sealing cavity is connected with the liquid storage tank, so that the refrigerant steam is cooled and the refrigerant liquid is recycled.
On-line automatic switching device of multi-working condition sectional combined type ejector is characterized in that: the sealed water jacket circulating water path is connected with the condenser water path, and the sealed cavity is connected with the liquid storage tank.
Compared with the prior art, the invention has the beneficial effects that:
the multi-working-condition segmented combined type ejector conversion assembly adopts a brand new combined type structure, the conversion assembly is divided into four components according to different working modes of an ejector, each component is respectively provided with a plurality of components which can be replaced at will, preferably, the multi-working-condition segmented combined type ejector conversion assembly adopts three sets of nozzles, three sets of suction chambers, three sets of mixing chambers and three sets of diffusion chambers, the random combination of any four components can be realized through different combination modes, when the working condition changes, namely after the pressure and temperature parameters of a generator, an evaporator and a condenser change, the performance of the ejector can change, and in order to improve the performance parameters of the ejector, the structure of the nozzles, the distance from the nozzles to the mixing chambers, the structure of the mixing chambers and the structure of the diffusion chambers need to be changed so as to adapt to the performance change of the. Different combinations can meet multiple working conditions and realize optimized operation, the problem that the ejector needs to be stopped and replaced when the working conditions change is solved, the operation efficiency of the injection refrigeration system is improved, and the time and labor cost consumed by replacing the ejector are saved. The time consumed by replacing the fixed structure ejector is saved, the working efficiency of the whole ejection refrigeration system is improved, and the stability of system operation is enhanced.
In the process of system operation, when the working condition changes, the on-line automatic conversion device realizes on-line replacement of the nozzle assembly, the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly through respective rotating mechanisms, saves the time consumed by replacing the fixed structure ejector, improves the working efficiency of the whole ejection refrigeration system, and enhances the stability of system operation. Meanwhile, the refrigerant is isolated from the external environment through the sealing water jacket, the sealing water jacket circulating water path is connected with the condenser water path, and the sealing cavity is connected with the liquid storage tank, so that the refrigerant steam is cooled and the refrigerant liquid is recycled.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a multi-condition segmented unit injector conversion assembly.
FIG. 2 is a schematic exterior view of a multi-condition segmented unit injector conversion assembly.
FIG. 3 is a schematic view of the installation positions of the nozzle inlet and the injection port of the multi-condition segmented modular ejector conversion assembly.
FIG. 4 is a schematic diagram of a multi-condition segmented unit injector conversion assembly.
Wherein, 1, generator outlet 2, sealing water jacket 3, injector conversion assembly 4, solenoid valve nine 5, evaporator outlet 6, solenoid valve one 7, solenoid valve two 8, solenoid valve three 9, solenoid valve four 10, condenser inlet 11, solenoid valve five 12, solenoid valve six 13, solenoid valve seven 14, solenoid valve eight 15, nozzle conversion cylinder 16, nozzle 17, suction chamber conversion cylinder 18, fastening screw 19, suction chamber sealing bush 20, mixing chamber conversion cylinder 21, mixing chamber sealing bush 22, mixing chamber 23, diffusion chamber conversion cylinder 24, diffusion chamber sealing bush 25, diffusion chamber 26, diffusion chamber conversion motor 27, mixing chamber conversion motor 28, translation motor 29, motor mounting bracket 30, suction chamber conversion motor 31, nozzle conversion bracket 32, nozzle conversion motor 33, spray nozzle conversion motor 33, Translation pivot 34, nozzle entry 35, induction port.
Detailed Description
Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 4.
Referring to the attached figures 1-4: the multi-working-condition segmented combined type injector conversion assembly comprises a nozzle assembly, a suction chamber assembly, a mixing chamber assembly and a diffusion chamber assembly which are sequentially spliced, wherein the nozzle assembly, the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly are respectively provided with a plurality of groups which are annularly arranged, the lower parts of the nozzle assembly, the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly are respectively provided with a rotating mechanism which drives the nozzle assembly to axially rotate, and the bottom of the rotating mechanism corresponding to the nozzle assembly is connected with a translation mechanism which can drive the nozzle assembly to transversely translate.
The nozzle assembly includes a nozzle change barrel 15 and a nozzle 16, one end of the nozzle 16 is embedded in one end of the nozzle change barrel 15 near the suction chamber assembly, and the other end of the nozzle 16 is embedded in the suction chamber assembly. The lower part of the nozzle conversion barrel 15 is connected with a rotating mechanism corresponding to the nozzle assembly, the rotating mechanism comprises a nozzle conversion bracket 31 and a nozzle conversion motor 32, the nozzle conversion motor 32 is installed on the nozzle conversion bracket 31, and an output shaft of the nozzle conversion motor 32 is horizontally arranged and connected with the lower part of the nozzle conversion barrel 15.
The translation mechanism comprises a translation motor 28, a translation rotating shaft 33 and a motor mounting bracket 29, the translation rotating shaft 33 is divided into two parts, one part is a light bar, the other part is a lead screw, the upper part of the motor mounting bracket 29 is respectively and fixedly connected with rotating mechanisms correspondingly arranged at the lower parts of the suction chamber assembly, the mixing chamber assembly and the diffusion chamber assembly, the light bar part of the translation rotating shaft 33 penetrates through the motor mounting bracket 29, and the lead screw part of the light bar part is in threaded connection with the rotating mechanism corresponding to the nozzle assembly.
The suction chamber component comprises a suction chamber conversion cylinder 17, a fastening screw 18 and a suction chamber sealing bush 19, the suction chamber sealing bush 19 is sleeved on the inner wall of the suction chamber conversion cylinder 17, the fastening screw 18 is arranged outside the suction chamber conversion cylinder 17, and the suction chamber conversion cylinder 17 is provided with a plurality of injection ports 35.
The mixing chamber assembly comprises a mixing chamber conversion cylinder 20, a mixing chamber sealing bush 21 and a mixing chamber 22, wherein the mixing chamber 22 is installed in the mixing chamber conversion cylinder 20, and the mixing chamber sealing bush 21 is arranged between the mixing chamber conversion cylinder 20 and the mixing chamber 22.
The diffusion chamber assembly includes a diffusion chamber conversion cylinder 23, a diffusion chamber seal bush 24, and a diffusion chamber 25, the diffusion chamber conversion cylinder 23 is internally provided with the diffusion chamber 25, and the diffusion chamber seal bush 24 is provided between the diffusion chamber conversion cylinder 23 and the diffusion chamber 25.
The working principle and the working process are as follows: in the nozzle conversion cylinder 15, the suction chamber conversion cylinder 17, the mixing chamber conversion cylinder 20 and the diffusion chamber conversion cylinder 23, the stepping motor drives any three sets of conversion to complete the whole combination, and the rest set is used as an emergency standby. In the operation process of the system, when the working condition changes, the nozzle conversion cylinder 15, the suction chamber conversion cylinder 17, the mixing chamber conversion cylinder 20 and the diffusion chamber conversion cylinder 23 are driven by respective stepping motors to realize online replacement, meanwhile, the refrigerant is isolated from the external environment through the sealing water jacket 2, the circulating water path of the sealing water jacket 2 is connected with the water path of the condenser, and the sealing cavity is connected with the liquid storage tank to realize the purposes of cooling the refrigerant steam and recovering the refrigerant liquid. The connecting pipelines of the generator outlet 1, the evaporator outlet 5 and the condenser inlet 10 are hoses. The generator outlet 1 is connected with a nozzle inlet through a pipeline, the nozzle inlet is integrated with a nozzle conversion cylinder 15, the nozzle conversion cylinder 15 is respectively connected with three sets of nozzles 16 through threads, and the nozzle conversion cylinder 15 respectively realizes the adjustment of the distance from the nozzles 16 to a mixing chamber and the conversion of the nozzles 16 through a translation motor 28, a translation rotating shaft 33 and a nozzle conversion motor 32. The evaporator outlet 5 is connected with an injection port on a suction chamber conversion barrel 17 through a pipeline, a part of the nozzle 16 is positioned in the suction chamber, a suction chamber sealing bush 19 is arranged in the suction chamber and used for sealing the nozzle 16 and the suction chamber conversion barrel 17, the suction chamber conversion barrel 17 has three suction chamber channels in total, and the suction chamber conversion is realized through a motor mounting bracket 29, a translation rotating shaft 33 and a suction chamber conversion motor 30. The suction chamber conversion cylinder 17 is connected to the mixing chamber conversion cylinder 20 and the diffusion chamber conversion cylinder 23 in this order. The mixing chamber conversion barrel 20 has three sets of mixing chambers 22, is fixed by a mixing chamber sealing bush 21 and a fastening screw, and is controlled to convert by a mixing chamber conversion motor 27. The diffusion chamber conversion cylinder 23 is provided with three sets of diffusion chambers 25, fixed by diffusion chamber sealing bushes 24 and fastening screws, and controlled to be converted by a diffusion chamber conversion motor 26. The device is provided with an electromagnetic valve, a four-way joint, an elbow, a guide rod, a bracket, an angle sensor and other elements.
The online automatic conversion device formed by the multi-working-condition segmented combined type ejector conversion assembly further comprises a generator outlet 1, a sealing water jacket 2 and a plurality of groups of electromagnetic valves, wherein the sealing water jacket 2 is arranged outside the ejector conversion assembly, a nozzle component of the ejector conversion assembly is simultaneously connected with the generator outlet 1 through a pipeline and the plurality of electromagnetic valves, a suction chamber component is simultaneously connected with an evaporator outlet 5 through a pipeline and the plurality of electromagnetic valves, and an outlet of a diffusion chamber component is simultaneously connected with a condenser inlet 10 through a pipeline and the plurality of electromagnetic valves. The water circulating path of the water jacket 2 is connected with the water path of the condenser, and the sealing cavity is connected with the liquid storage tank.
The working principle and the working process of the online automatic conversion device are as follows:
in Process 1, the nozzle was mounted on the nozzle transfer cylinder, the mixing chamber 22 was loaded into the mixing chamber transfer cylinder 20, the diffusion chamber 25 was loaded into the diffusion chamber transfer cylinder 23, the piping was installed as shown in FIG. 2, and the vacuum was pulled.
In the process 2, when the injection refrigeration system operates, if only the six 12 solenoid valves, the nine 4 solenoid valves and the three 8 solenoid valves are opened, the first set of combination is completed; if only the seven electromagnetic valve 13, the first electromagnetic valve 6 and the fourth electromagnetic valve 9 are opened, the second set of combination is completed; if only the eight 14, the two 7 and the five 11 electromagnetic valves are opened, the third set of combination is completed; all three combinations can adjust the distance from the nozzle 16 to the mixing chamber 22 by driving the translation rotating shaft 33 through the translation motor 28.
And 3, when the three combinations cannot meet the working condition, selecting any three of the nozzle conversion cylinder 15, the suction chamber conversion cylinder 17, the mixing chamber conversion cylinder 20 and the diffusion chamber conversion cylinder 23 to complete the whole combination of the ejector.
If the combination of the ejector set including the nozzle corresponding to the electromagnetic valve eight 14, the suction chamber corresponding to the electromagnetic valve four 6, the mixing chamber corresponding to the nozzle inlet 34, and the diffusion chamber corresponding to the electromagnetic valve three 8 is used, the following operations are performed: the translation motor 28 drives the suction chamber conversion barrel 17 to translate outwards through the translation rotating shaft 33 until the three sets of nozzles are completely moved out of the suction chamber conversion barrel 17, the nozzle conversion motor 32 drives the nozzle conversion barrel 15 to rotate to the suction chamber corresponding to the nozzles, the translation motor 28 drives the nozzles to be inserted into the suction chamber through the translation rotating shaft 33, the distance between the nozzles and the mixing chamber can be adjusted in the process, the mixing chamber conversion barrel 20 is converted through the mixing chamber conversion motor 27, the diffusion chamber conversion barrel 23 is driven and converted through the diffusion chamber conversion motor 26, cooling water of the sealed water jacket 2 is connected, residual refrigerants in the sealed box body are condensed and recycled, and the eight solenoid valve 14, the four solenoid valve 6 and the three solenoid valve 8 are opened. The other operations are similar to "procedure 3".
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.