CN202993696U - Twin-stage multi-parallel-connection single-throttling complete-intercooling refrigerating system - Google Patents
Twin-stage multi-parallel-connection single-throttling complete-intercooling refrigerating system Download PDFInfo
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- CN202993696U CN202993696U CN201220597378.0U CN201220597378U CN202993696U CN 202993696 U CN202993696 U CN 202993696U CN 201220597378 U CN201220597378 U CN 201220597378U CN 202993696 U CN202993696 U CN 202993696U
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Abstract
The utility model discloses a twin-stage multi-parallel-connection single-throttling complete-intercooling refrigerating system, and provides a refrigerating system which can realize circulation of single-stage compression and twin-stage compression by utilizing valve switchover. The refrigerating system comprises a first air suction pipeline, a second air suction pipeline, a high-voltage liquid feeding pipeline, a first evaporator, a second evaporator, a first throttling device, a second throttling device and a plurality of double-compressor units. Each double-compressor unit comprises a first compressor, a second compressor, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a condenser, a third throttling device and an intercooler. The refrigerating system comprises the double-compressor units which are connected in series with the first air suction pipeline, the second air suction pipeline and the high-voltage liquid feeding pipeline. By the aid of opening and closing of internal valves, the single-stage compression and the twin-stage compression can be realized, and each compressor in the double-compressor units can be used independently. Initial investment on the refrigerating system is small, adjustment of the refrigerating system is flexible, and temperature fluctuation in a refrigerator using the refrigerating system is small.
Description
Technical field
The utility model relates to refrigeration technology field, particularly relates to the middle cooling refrigeration system fully of the multi-joint throttling of a kind of twin-stage.
Background technology
The multi-connected air conditioning system that is comprised of many off-premises stations and Duo Tai indoor set is with its flexible operation, and Energy Efficiency Ratio is high, is easy to control and is widely used in field of air conditioning.But existing multi-gang air conditioner is all single-stage compression refrigeration system, is only applicable to field of air conditioning.And for picture multi-stage temperature refrigerator, how warm refrigerator car etc., when single-stage compression refrigeration system (being generally used for the high-temperature refrigeration environment) and double-stage compressive refrigerating system (being generally used for the cryogenic refrigeration environment) and when depositing, need to be to high and low temperature refrigerating environment separate configurations refrigeration system, and can not switch each other, cause the waste in the refrigerating plant configuration, the present or blank of technology for the multi-connected machine that can be common to single-stage and Two-stage Compression kind of refrigeration cycle.
The utility model content
The purpose of this utility model is for the technological deficiency that exists in prior art, utilizes the valve switching can realize the single stage compress circulation and provide a kind of, can realize again the middle cooling refrigeration system fully of the multi-joint throttling of twin-stage of Two-stage Compression circulation.
For realizing that the technical scheme that the purpose of this utility model adopts is:
complete cooling refrigeration system in the middle of the multi-joint throttling of a kind of twin-stage, it is characterized in that, comprise the first suction line, the second suction line, high pressure liquid feeding pipeline, the first evaporimeter, the second evaporimeter, first throttle device, the second throttling arrangement and organize the double-compressor group more, every group of described double-compressor group comprises the first compressor, the second compressor, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, condenser, the 3rd throttling arrangement and intercooler, and described many group double-compressor groups are connected between the first suction line, the second suction line and high pressure liquid feeding pipeline side by side, described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment, the pipe side outlet of the intercooler of every group of described double-compressor group is connected with described high pressure liquid feeding pipeline respectively, the described high pressure liquid feeding pipeline other end is connected with described the second throttling arrangement import with the import of described first throttle device respectively, described first throttle device outlet is connected with described the first evaporator, described the first evaporator outlet is connected with described the first suction line, described the second throttling arrangement outlet is connected with described the second evaporator, and described the second evaporator outlet is connected with described the second suction line, described the first suction line is connected with the 3rd valve inlet with the second valve inlet of every group of described double-compressor group respectively, and described the second suction line is connected with the first valve inlet of every group of described double-compressor group, be connected with the air entry of described the first compressor after the outlet parallel connection of the outlet of described the first valve and described the second valve, the exhaust outlet of described the first compressor is connected with the import of the 4th valve and the import of the 5th valve respectively, the outlet of described the 4th valve is connected with shell-side inlet below the liquid level of described intercooler, be connected with the air entry of described the second compressor after the shell-side gaseous phase outlet parallel connection of the outlet of described the 3rd valve and described intercooler, be connected with the import of described condenser after the outlet parallel connection of the exhaust outlet of described the second compressor and described the 5th valve, the outlet one tunnel of described condenser is connected with the pipe side-entrance of described intercooler, another road by described the 6th valve be connected the 3rd throttling arrangement and be connected with the shell-side inlet of described intercooler.
complete cooling refrigeration system in the middle of the multi-joint throttling of a kind of twin-stage, it is characterized in that, comprise the first suction line, the second suction line, high pressure liquid feeding pipeline, the first evaporimeter, the second evaporimeter, first throttle device, the second throttling arrangement and organize the double-compressor group more, every group of described double-compressor group comprises the first compressor, the second compressor, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, condenser, the 3rd throttling arrangement and intercooler, and described many group double-compressor groups are connected between the first suction line, the second suction line and high pressure liquid feeding pipeline side by side, described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment, the pipe side outlet of the intercooler of every group of described double-compressor group is connected with the 6th valve inlet with described high pressure liquid feeding pipeline respectively, the described high pressure liquid feeding pipeline other end is connected with described the second throttling arrangement import with the import of described first throttle device respectively, described first throttle device outlet is connected with described the first evaporator, described the first evaporator outlet is connected with described the first suction line, described the second throttling arrangement outlet is connected with described the second evaporator, and described the second evaporator outlet is connected with described the second suction line, described the first suction line is connected with the 3rd valve inlet with the second valve inlet of every group of described double-compressor group respectively, and described the second suction line is connected with the first valve inlet of every group of described double-compressor group, be connected with the air entry of described the first compressor after the outlet parallel connection of the outlet of described the first valve and described the second valve, the exhaust outlet of described the first compressor is connected with the import of the 4th valve and the import of the 5th valve respectively, the outlet of described the 4th valve is connected with shell-side inlet below the liquid level of described intercooler, be connected with the air entry of described the second compressor after the shell-side gaseous phase outlet parallel connection of the outlet of described the 3rd valve and described intercooler, be connected with the import of described condenser after the outlet parallel connection of the exhaust outlet of described the second compressor and described the 5th valve, the outlet of described condenser is connected with the pipe side-entrance of described intercooler, the shell-side inlet of described intercooler through described the 3rd throttling arrangement be connected the 6th valve and connect.
Compared with prior art, the beneficial effects of the utility model are:
refrigeration system fully cooling in the middle of the multi-joint throttling of twin-stage of the present utility model is by being connected in parallel in the first suction line, many groups double-compressor group of the second suction line and high pressure liquid feeding pipeline forms, unlatching by being connected in double-compressor group internal valves or close, each double-compressor group all can realize through single stage compress, cold-producing medium being entered the high pressure liquid feeding pipeline and completing the single stage compress kind of refrigeration cycle and through Two-stage Compression, cold-producing medium is entered the function that the high pressure liquid feeding pipeline is completed the Two-stage Compression kind of refrigeration cycle from the second suction line is air-breathing from the first suction line is air-breathing, and all can use separately at inner each compressor of single stage compress circulation time double-compressor group.Therefore, system can save one-time investment when having single stage compress circulation and Two-stage Compression circulation to need, be convenient to simultaneously refrigeration system energy-conservation, has improved the utilization ratio of refrigeration system, and the refrigeration system flexible adjustment, and the temperature fluctuation in refrigerating environment is little.
Description of drawings
Fig. 1 is complete cooling cooling front throttle refrigeration system schematic diagram in the middle of the multi-joint throttling of a kind of twin-stage of the utility model;
Fig. 2 is complete cooling cooling rear throttle refrigeration system schematic diagram in the middle of the multi-joint throttling of a kind of twin-stage of the utility model.
In figure: 1. the first suction line, 2. the second suction line, 3. high pressure liquid feeding pipeline, 4-1. the first compressor, 4-2. the second compressor, 5-1. the first valve, 5-2. the second valve, 5-3. the 3rd valve, 5-4. the 4th valve, 5-5. the 5th valve, 5-6. the 6th valve, 6. condenser, 7-1. the first throttle device, 7-2. the second throttling arrangement, 7-3. the 3rd throttling arrangement, 8. intercooler, 9-1. the first evaporimeter, 9-2. the second evaporimeter.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
In the middle of the multi-joint throttling of twin-stage of the present utility model fully cooling refrigeration system is according to the difference of throttle position, is divided in the middle of cooling front throttle refrigeration system fully cooling in the middle of the multi-joint throttling of twin-stage and the multi-joint throttling of twin-stage cooling cooling rear throttle refrigeration system fully.
Embodiment 1
In the middle of the multi-joint throttling of a kind of twin-stage of the utility model, complete cooling cooling front throttle refrigeration system schematic diagram as shown in Figure 1, comprises the first suction line 1, the second suction line 2, high pressure liquid feeding pipeline 3, the first evaporimeter 9-1, the second evaporimeter 9-2, first throttle device 7-1, the second throttling arrangement 7-2 and organizes the double-compressor group more.Every group of described double-compressor group comprises the first compressor 4-1, the second compressor 4-2, the first valve 5-1, the second valve 5-2, the 3rd valve 5-3, the 4th valve 5-4, the 5th valve 5-5, the 6th valve 5-6, condenser 6, the 3rd throttling arrangement 7-3 and intercooler 8, and described many group double-compressor groups are connected between the first suction line 1, the second suction line 2 and high pressure liquid feeding pipeline 3 side by side.Described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment.The pipe side outlet of the intercooler 8 of every group of described double-compressor group is connected with described high pressure liquid feeding pipeline 3 respectively, described high pressure liquid feeding pipeline 3 other ends are connected with described the second throttling arrangement 7-2 import with described first throttle device 7-1 import respectively, described first throttle device 7-1 outlet is connected with described the first evaporimeter 9-1 import, described the first evaporimeter 9-1 outlet is connected with described the first suction line 1, described the second throttling arrangement 7-2 outlet is connected with described the second evaporimeter 9-2 import, and described the second evaporimeter 9-2 outlet is connected with described the second suction line 2.described the first suction line 1 is connected with the 3rd valve 5-3 import with the second valve 5-2 import of every group of described double-compressor group respectively, and described the second suction line 2 is connected with the first valve 5-1 import of every group of described double-compressor group, be connected with the air entry of described the first compressor 4-1 after the outlet parallel connection of the outlet of described the first valve 5-1 and the second valve 5-2, the exhaust outlet of described the first compressor 4-1 is connected with the import of the 4th valve 5-4 and the import of the 5th valve 5-5 respectively, the liquid level below shell-side inlet of the outlet of described the 4th valve 5-4 and described intercooler 8 is connected, be connected with the air entry of described the second compressor 4-2 after the shell-side gaseous phase outlet parallel connection of the outlet of described the 3rd valve 5-3 and described intercooler 8, be connected with the import of described condenser 6 after the outlet parallel connection of the exhaust outlet of described the second compressor 4-2 and described the 5th valve 5-5, the outlet one tunnel of described condenser 6 is connected with the pipe side-entrance of described intercooler 8, another road by described the 6th valve 5-6 be connected the 3rd throttling arrangement 7-3 and be connected with the shell-side inlet of described intercooler 8.
In the middle fully cooling cooling front throttle refrigeration system of the multi-joint throttling of the twin-stage of the present embodiment 1, any one double-compressor group all can be used as Two-stage Compression refrigeration unit and the use of single stage compress refrigeration unit, and does not interfere with each other between the double-compressor group.
1, use as the Two-stage Compression refrigeration unit:
In the double-compressor group, the second valve 5-2, the 3rd valve 5-3 and the 5th valve 5-5 close, and the first valve 5-1, the 4th valve 5-4 and the 6th valve 5-6 open.high pressure refrigerant liquid in high pressure liquid feeding pipeline 3 enters in the second suction line 2 in the second evaporimeter 9-2 after the second throttling arrangement 7-2 reducing pressure by regulating flow after evaporation endothermic, enter through the first valve 5-1 and carry out first order compression in the first compressor 4-1, middle compression refrigerant steam after the first compressor compresses enters intercooler 8 through the 4th valve 5-4 from middle cooler 8 liquid levels belows shell-side inlet, with refrigerant liquid heat exchange in intercooler 8, the saturated refrigerant vapour of middle pressure after heat exchange enters and carries out second level compression in the second compressor 4-2, be condensed into high pressure refrigerant liquid through the high-pressure refrigerant vapor after the second compressor compresses in condenser 6, out high pressure refrigerant liquid is divided into two parts from condenser 6, a part is heat exchange from the shell-side inlet of middle cooler 8 enters intercooler 8 after throttling is middle compression refrigerant in the 3rd throttling arrangement 7-3 through the 6th valve 5-6, another part high pressure refrigerant liquid enters from middle cooler 8 pipe side-entrances, flow out to enter from middle cooler 8 pipe side outlets after heat exchange and complete the Two-stage Compression kind of refrigeration cycle high pressure liquid feeding pipeline 3.
2, use as the single stage compress refrigeration unit:
In the double-compressor group, the second valve 5-2, the 3rd valve 5-3 and the 5th valve 5-5 open, and the first valve 5-1, the 4th valve 5-4 and the 6th valve 5-6 close.High pressure refrigerant liquid in high pressure liquid feeding pipeline 3 enters in the first suction line 1 through first throttle device 7-1 reducing pressure by regulating flow in the first evaporimeter 9-1 after evaporation endothermic, enter in the first compressor 4-1 and the second compressor 4-2 through the second valve 5-2 and the 3rd valve 5-3 respectively and compress, the high-pressure refrigerant vapor of high-pressure refrigerant vapor after the first compressor 4-1 compression after the 5th valve 5-5 and the second compressor 4-2 compression joined and entered condensation in condenser 6, and the intercooler 8 of then flowing through enters and completes the single stage compress kind of refrigeration cycle in high-pressure liquid line 3.
When the second valve 5-2, the first valve 5-1, the 4th valve 5-4, the 5th valve 5-5 and the 6th valve 5-6 close, when the 3rd valve 5-3 opened, the second compressor 4-2, condenser 6, first throttle device 7-1, intercooler and the first evaporimeter 9-1 can complete separately the single stage compress kind of refrigeration cycle; When the second valve 5-2, the 3rd valve 5-3, the 4th valve 5-4 and the 6th valve 5-6 close, the 3rd valve 5-3 closes, when the first valve 5-1 and the 5th valve 5-5 opened, the first compressor 4-1, condenser 6, first throttle device 7-1, intercooler and the first evaporimeter 9-1 can complete separately the single stage compress kind of refrigeration cycle.
Fig. 2 is complete cooling cooling rear throttle refrigeration system schematic diagram in the middle of the multi-joint throttling of a kind of twin-stage of the utility model, comprises the first suction line 1, the second suction line 2, high pressure liquid feeding pipeline 3, the first evaporimeter 9-1, the second evaporimeter 9-2, first throttle device 7-1, the second throttling arrangement 7-2 and organizes the double-compressor group more.Every group of described double-compressor group comprises the first compressor 4-1, the second compressor 4-2, the first valve 5-1, the second valve 5-2, the 3rd valve 5-3, the 4th valve 5-4, the 5th valve 5-5, the 6th valve 5-6, condenser 6, the 3rd throttling arrangement 7-3 and intercooler 8, and described many group double-compressor groups are connected between the first suction line 1, the second suction line 2 and high pressure liquid feeding pipeline 3 side by side.Described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment.the pipe side outlet of the intercooler 8 of every group of described double-compressor group is connected with the 6th valve 5-6 import with described high pressure liquid feeding pipeline 3 respectively, described high pressure liquid feeding pipeline 3 other ends are connected with described the second throttling arrangement 7-2 import with described first throttle device 7-1 import respectively, described first throttle device 7-1 outlet is connected with described the first evaporimeter 9-1 import, described the first evaporimeter 9-1 outlet is connected with described the first suction line 1, described the second throttling arrangement 7-2 outlet is connected with described the second evaporimeter 9-2 import, described the second evaporimeter 9-2 outlet is connected with described the second suction line 2.Described the first suction line 1 is connected with the 3rd valve 5-3 import with the second valve 5-2 import of every group of described double-compressor group respectively, and described the second suction line 2 is connected with the first valve 5-1 import of every group of described double-compressor group.be connected with the air entry of described the first compressor 4-1 after the outlet parallel connection of the outlet of described the first valve 5-1 and the second valve 5-2, the exhaust outlet of described the first compressor 4-1 is connected with the import of the 4th valve 5-4 and the import of the 5th valve 5-5 respectively, the liquid level below shell-side inlet of the outlet of described the 4th valve 5-4 and described intercooler 8 is connected, be connected with the air entry of described the second compressor 4-2 after the shell-side gaseous phase outlet parallel connection of the outlet of described the 3rd valve 5-3 and described intercooler 8, be connected with the import of described condenser 6 after the outlet parallel connection of the exhaust outlet of described the second compressor 4-2 and described the 5th valve 5-5, the outlet of described condenser 6 is connected with the pipe side-entrance of described intercooler 8, the shell-side inlet of described intercooler 8 through described the 3rd throttling arrangement 7-3 be connected the 6th valve 5-6 outlet and connect.
In the middle fully cooling cooling rear throttle refrigeration system of the multi-joint throttling of the twin-stage of the present embodiment 2, any one double-compressor group all can be used as Two-stage Compression refrigeration unit and the use of single stage compress refrigeration unit, and does not interfere with each other between the double-compressor group.
1, use as the Two-stage Compression refrigeration unit:
In the double-compressor group, the second valve 5-2, the 3rd valve 5-3 and the 5th valve 5-5 close, and the first valve 5-1, the 4th valve 5-4 and the 6th valve 5-6 open.high pressure refrigerant liquid in high pressure liquid feeding pipeline 3 enters in the second suction line 2 in the second evaporimeter 9-2 after the second throttling arrangement 7-2 reducing pressure by regulating flow after evaporation endothermic, enter through the first valve 5-1 and carry out first order compression in the first compressor 4-1, middle compression refrigerant steam after the first compressor compresses enters intercooler 8 through the 4th valve 5-4 from middle cooler 8 liquid levels belows shell-side inlet, with refrigerant liquid heat exchange in intercooler 8, the saturated refrigerant vapour of middle pressure after heat exchange enters and carries out second level compression in the second compressor 4-2, be condensed into high pressure refrigerant liquid through the high-pressure refrigerant vapor after the second compressor compresses in condenser 6, out high pressure refrigerant liquid enters from the 8 pipe side-entrances of middle cooler from condenser 6, heat exchange in intercooler 8, the cold-producing medium that flows out from middle cooler 8 pipe side outlets is divided into two parts, a part is heat exchange from the shell-side inlet of middle cooler 8 enters intercooler 8 after throttling is middle compression refrigerant in the 3rd throttling arrangement 7-3 through the 6th valve 5-6, another part enters and completes the Two-stage Compression kind of refrigeration cycle in high pressure liquid feeding pipeline 3.
2, use as the single stage compress refrigeration unit:
In the double-compressor group, the second valve 5-2, the 3rd valve 5-3 and the 5th valve 5-5 open, and the first valve 5-1, the 4th valve 5-4 and the 6th valve 5-6 close.High pressure refrigerant liquid in high pressure liquid feeding pipeline 3 enters in the first suction line 1 through first throttle device 7-1 reducing pressure by regulating flow in the first evaporimeter 9-1 after evaporation endothermic, enter in the first compressor 4-1 and the second compressor 4-2 through the second valve 5-2 and the 3rd valve 5-3 respectively and compress, the high-pressure refrigerant vapor of high-pressure refrigerant vapor after the first compressor 4-1 compression after the 5th valve 5-5 and the second compressor 4-2 compression joined and entered condensation in condenser 6, and the intercooler 8 of then flowing through enters and completes the single stage compress kind of refrigeration cycle in high-pressure liquid line 3.
When the second valve 5-2, the first valve 5-1, the 4th valve 5-4, the 5th valve 5-5 and the 6th valve 5-6 close, when the 3rd valve 5-3 opened, the second compressor 4-2, condenser 6, first throttle device 7-1, intercooler and the first evaporimeter 9-1 can complete separately the single stage compress kind of refrigeration cycle; When the second valve 5-2, the 3rd valve 5-3, the 4th valve 5-4 and the 6th valve 5-6 close, the 3rd valve 5-3 closes, when the first valve 5-1 and the 5th valve 5-5 opened, the first compressor 4-1, condenser 6, first throttle device 7-1, intercooler and the first evaporimeter 9-1 can complete separately the single stage compress kind of refrigeration cycle.
In above-described embodiment 1 and embodiment 2: described first throttle device, the second throttling arrangement, the 3rd throttling arrangement are any in heating power expansion valve, electric expansion valve, capillary, throttle orifice plate apparatus, or other throttling arrangement.Described condenser is air-cooled condenser, water-cooled condenser or evaporative condenser, can be also the condenser of other pattern.Described the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve are the valve of hand-operated valve, motor-driven valve, triple valve, cross valve or other pattern, can be ball valve or gate valve.Described intercooler can be plate type heat exchanger or other pattern heat exchanger.
Refrigeration system of the present utility model is utilized valve to switch and can be realized the single stage compress circulation, can realize again the Two-stage Compression circulation, and inner each compressor of double-compressor group all can use separately.Therefore, system can save one-time investment when having single stage compress and Two-stage Compression to need, be convenient to simultaneously refrigeration system energy-conservation, has improved the utilization ratio of refrigeration system, and the refrigeration system flexible adjustment, and in refrigerating environment, temperature fluctuation is little.
The above is only preferred embodiment of the present utility model; should be noted that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. cooling refrigeration system fully in the middle of the multi-joint throttling of a twin-stage, it is characterized in that, comprise the first suction line, the second suction line, high pressure liquid feeding pipeline, the first evaporimeter, the second evaporimeter, first throttle device, the second throttling arrangement and organize the double-compressor group more, described many group double-compressor groups are connected between the first suction line, the second suction line and high pressure liquid feeding pipeline side by side, described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment, every group of described double-compressor group comprises the first compressor, the second compressor, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, condenser, the 3rd throttling arrangement and intercooler, the pipe side outlet of the intercooler of every group of described double-compressor group is connected with described high pressure liquid feeding pipeline respectively, the described high pressure liquid feeding pipeline other end is connected with described the second throttling arrangement import with the import of described first throttle device respectively, described first throttle device outlet is connected with described the first evaporator, described the first evaporator outlet is connected with described the first suction line, described the second throttling arrangement outlet is connected with described the second evaporator, and described the second evaporator outlet is connected with described the second suction line, described the first suction line is connected with the 3rd valve inlet with the second valve inlet of every group of described double-compressor group respectively, and described the second suction line is connected with the first valve inlet of every group of described double-compressor group, be connected with the air entry of described the first compressor after the outlet parallel connection of the outlet of described the first valve and described the second valve, the exhaust outlet of described the first compressor is connected with the import of the 4th valve and the import of the 5th valve respectively, the outlet of described the 4th valve is connected with shell-side inlet below the liquid level of described intercooler, be connected with the air entry of described the second compressor after the shell-side gaseous phase outlet parallel connection of the outlet of described the 3rd valve and described intercooler, be connected with the import of described condenser after the outlet parallel connection of the exhaust outlet of described the second compressor and described the 5th valve, the outlet one tunnel of described condenser is connected with the pipe side-entrance of described intercooler, another road by described the 6th valve be connected the 3rd throttling arrangement and be connected with the shell-side inlet of described intercooler.
2. cooling refrigeration system fully in the middle of the multi-joint throttling of twin-stage according to claim 1, it is characterized in that, described first throttle device, the second throttling arrangement, the 3rd throttling arrangement are any in heating power expansion valve, electric expansion valve, capillary, throttle orifice plate apparatus.
3. incomplete cooling refrigeration system in the middle of the multi-joint throttling of twin-stage according to claim 1, is characterized in that, described condenser is air-cooled condenser, water-cooled condenser or evaporative condenser.
4. cooling refrigeration system fully in the middle of the multi-joint throttling of twin-stage according to claim 1, it is characterized in that, described the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve are hand-operated valve, motor-driven valve, triple valve or cross valve.
5. cooling refrigeration system fully in the middle of the multi-joint throttling of a twin-stage, it is characterized in that, comprise the first suction line, the second suction line, high pressure liquid feeding pipeline, the first evaporimeter, the second evaporimeter, first throttle device, the second throttling arrangement and organize the double-compressor group more; Every group of described double-compressor group comprises the first compressor, the second compressor, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, condenser, the 3rd throttling arrangement and intercooler, and described many group double-compressor groups are connected between the first suction line, the second suction line and high pressure liquid feeding pipeline side by side; Described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment.the pipe side outlet of the intercooler of every group of described double-compressor group is connected with the 6th valve inlet with described high pressure liquid feeding pipeline respectively, the described high pressure liquid feeding pipeline other end is connected with described the second throttling arrangement import with the import of described first throttle device respectively, described first throttle device outlet is connected with described the first evaporator, described the first evaporator outlet is connected with described the first suction line, described the second throttling arrangement outlet is connected with described the second evaporator, and described the second evaporator outlet is connected with described the second suction line, described the first suction line is connected with the 3rd valve inlet with the second valve inlet of every group of described double-compressor group respectively, and described the second suction line is connected with the first valve inlet of every group of described double-compressor group, be connected with the air entry of described the first compressor after the outlet parallel connection of the outlet of described the first valve and described the second valve, the exhaust outlet of described the first compressor is connected with the import of the 4th valve and the import of the 5th valve respectively, the outlet of described the 4th valve is connected with shell-side inlet below the liquid level of described intercooler, be connected with the air entry of described the second compressor after the shell-side gaseous phase outlet parallel connection of the outlet of described the 3rd valve and described intercooler, be connected with the import of described condenser after the outlet parallel connection of the exhaust outlet of described the second compressor and described the 5th valve, the outlet of described condenser is connected with the pipe side-entrance of described intercooler, the shell-side inlet of described intercooler through described the 3rd throttling arrangement be connected the 6th valve and connect.
6. cooling refrigeration system fully in the middle of the multi-joint throttling of twin-stage according to claim 5, it is characterized in that, described first throttle device, the second throttling arrangement, the 3rd throttling arrangement are any in heating power expansion valve, electric expansion valve, capillary, throttle orifice plate apparatus.
7. complete cooling refrigeration system in the middle of the multi-joint throttling of twin-stage according to claim 5, is characterized in that, described condenser is air-cooled condenser, water-cooled condenser or evaporative condenser.
8. cooling refrigeration system fully in the middle of the multi-joint throttling of twin-stage according to claim 5, it is characterized in that, described the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve are hand-operated valve, motor-driven valve, triple valve or cross valve.
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| CN201220597378.0U CN202993696U (en) | 2012-11-12 | 2012-11-12 | Twin-stage multi-parallel-connection single-throttling complete-intercooling refrigerating system |
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| CN201220597378.0U CN202993696U (en) | 2012-11-12 | 2012-11-12 | Twin-stage multi-parallel-connection single-throttling complete-intercooling refrigerating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901278A (en) * | 2012-11-12 | 2013-01-30 | 天津商业大学 | Two-stage multi-unit single-throttling complete-intercooling refrigeration system |
| CN103335436A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling complete-inter-cooling variable-flow twin-stage compression refrigerating system |
| CN103344059A (en) * | 2013-07-04 | 2013-10-09 | 天津商业大学 | Secondary throttling middle complete cooling variable flow two-stage compression refrigerating system |
| CN108759139A (en) * | 2018-07-20 | 2018-11-06 | 天津商业大学 | The intermediate not exclusively cooling refrigeration system of primary throttling with medium temperature evaporator |
-
2012
- 2012-11-12 CN CN201220597378.0U patent/CN202993696U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901278A (en) * | 2012-11-12 | 2013-01-30 | 天津商业大学 | Two-stage multi-unit single-throttling complete-intercooling refrigeration system |
| CN102901278B (en) * | 2012-11-12 | 2014-10-01 | 天津商业大学 | Two-stage multi-unit single-throttling complete-intercooling refrigeration system |
| CN103335436A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling complete-inter-cooling variable-flow twin-stage compression refrigerating system |
| CN103344059A (en) * | 2013-07-04 | 2013-10-09 | 天津商业大学 | Secondary throttling middle complete cooling variable flow two-stage compression refrigerating system |
| CN108759139A (en) * | 2018-07-20 | 2018-11-06 | 天津商业大学 | The intermediate not exclusively cooling refrigeration system of primary throttling with medium temperature evaporator |
| CN108759139B (en) * | 2018-07-20 | 2023-09-26 | 天津商业大学 | Primary throttling intermediate incomplete cooling refrigeration system with intermediate temperature evaporator |
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