阅读说明：本技术 一种利用热能的制冷系统、方法及存储介质 (Refrigerating system and method using heat energy and storage medium ) 是由 杜付桂 王姣姣 张振东 高东 杨晓腾 王桂玲 于 2021-10-15 设计创作，主要内容包括：本申请公开的利用热能的制冷系统、方法及存储介质,其中,利用热能的制冷系统,包括热交换器,热交换器一次侧连通第一泵体和集热器；热交换器的二次侧连通第一引射喷嘴的入口,第一引射喷嘴的出口连接冷凝器的入口,冷凝器的出口连通第一选择阀,第一选择阀的一个接口连通第二泵体,第二泵体连通热交换器,第一选择阀的另一个接口连通第二引射喷嘴的入口,第二引射喷嘴的出口连通气液分离器,气液分离器的液体出口经膨胀阀连通蒸发器,气液分离器的气体出口连通压缩机,蒸发器的出口连通第二引射喷嘴的引射口,压缩机经第一电动阀连通第一引射喷嘴的引射口压缩机经第二电动阀连通冷凝器。本申请能够有效利用太阳能或废热等热能进行制冷。(The application discloses a refrigeration system, a method and a storage medium utilizing heat energy, wherein the refrigeration system utilizing the heat energy comprises a heat exchanger, and a first pump body and a heat collector are communicated with the primary side of the heat exchanger; the secondary side of the heat exchanger is communicated with the inlet of the first injection nozzle, the outlet of the first injection nozzle is connected with the inlet of the condenser, the outlet of the condenser is communicated with the first selector valve, one interface of the first selector valve is communicated with the second pump body, the second pump body is communicated with the heat exchanger, the other interface of the first selector valve is communicated with the inlet of the second injection nozzle, the outlet of the second injection nozzle is communicated with the gas-liquid separator, the liquid outlet of the gas-liquid separator is communicated with the evaporator through an expansion valve, the gas outlet of the gas-liquid separator is communicated with the compressor, the outlet of the evaporator is communicated with the injection port of the second injection nozzle, and the compressor is communicated with the injection port of the first injection nozzle through a first electric valve and is communicated with the condenser through a second electric valve. The solar refrigerator can effectively utilize heat energy such as solar energy or waste heat to refrigerate.)

1. A refrigeration system using thermal energy, characterized by comprising a heat exchanger (11), said heat exchanger (11) being in primary communication with a first pump body (12) and a heat collector (13);

the secondary side of the heat exchanger (11) is communicated with an inlet of a first injection nozzle (2), an outlet of the first injection nozzle (2) is connected with an inlet of a condenser (3) through a three-way joint, an injection port of the first injection nozzle (2) is communicated with a compressor (4) through a first electric valve (41), and the compressor (4) is connected with the inlet of the condenser (3) through a second electric valve (42) and the three-way joint;

the outlet of condenser (3) communicates first selector valve (5), an interface intercommunication second pump body (6) of first selector valve (5), the second pump body (6) intercommunication the secondary side of heat exchanger (11), another interface intercommunication second of first selector valve (5) draws the entry of penetrating nozzle (7), the export of second draws penetrating nozzle (7) even ventilate liquid separator (8), the liquid outlet of vapour and liquid separator (8) passes through the entry of expansion valve (9) intercommunication evaporimeter (10), the gas outlet intercommunication of vapour and liquid separator (8) compressor (4), the export of evaporimeter (10) communicates the drawing mouth of second penetrating nozzle (7).

2. A refrigerating system using thermal energy according to claim 1, wherein the primary side of the heat exchanger (11), the first pump body, and the heat collector (13) are filled with a heat transfer medium; refrigeration media are arranged in the secondary side of the heat exchanger (11), the first injection nozzle (2), the condenser (3), the second injection nozzle (7), the gas-liquid separator (8), the evaporator (10) and the compressor (4).

3. A refrigerating system using heat energy as claimed in claim 1, wherein the first ejector nozzle (2) and the second ejector nozzle (7) comprise a convergent pipe, the throat part of the convergent pipe is communicated with the mixing pipe, the convergent pipe is communicated with the ejector nozzle, and the mixing pipe is communicated with the expansion pipe.

4. A refrigerating system using thermal energy according to claim 1, characterized in that a check valve body c directed from the condenser to the second pump body and a check valve body d directed from the condenser to the second ejector nozzle are provided in the first selector valve (5).

5. A refrigerating system utilizing heat energy according to claim 1, characterized in that the gas outlet of the gas-liquid separator (8) is communicated with the compressor (4) through a one-way valve (81), and the one-way valve (81) is provided with a one-way valve core directed from the gas-liquid separator to the compressor.

6. A refrigerating system using thermal energy according to claim 1, characterized in that the outlet of the evaporator (10) is connected to the compressor (4) and the injection port of the second injection nozzle (14) through a second selector valve (101), and the second selector valve (101) is provided with a one-way valve core a directed from the evaporator to the compressor and a one-way valve core b directed from the evaporator to the second injection nozzle.

7. A refrigeration system using thermal energy according to any one of claims 1 to 6, characterized in that the first pump body (12), the second pump body (6) and the compressor (4) are electrically connected to a driving module, the driving module is electrically connected to a controller, the controller is electrically connected to a first electric valve (41), a second electric valve (42), a first selector valve (5), a check valve (81) and a second selector valve (101), the controller is electrically connected to a temperature sensor for measuring the temperature of the environment in which the refrigeration system operates, the controller is electrically connected to a triggering module, and the triggering module detects whether the heat source is energized or not.

8. A method of controlling a refrigeration system that utilizes thermal energy, comprising:

whether the heat source supplies energy or not is detected,

when the heat source supplies energy, the controller controls the first electric valve to be opened and the second electric valve to be closed, the controller controls the one-way valve body c and the one-way valve body d of the first selection valve to be opened, the controller controls the first pump body, the second pump body and the compressor to operate through the driving module,

when the heat source does not supply energy, the controller controls the first electric valve to be closed and the second electric valve to be opened, the controller controls the one-way valve body c of the first selection valve to be closed and the one-way valve body d of the first selection valve to be opened, and the controller controls the first pump body and the second pump body to be closed through the driving module and controls the compressor to operate through the driving module.

9. The control method of a refrigeration system using heat energy as claimed in claim 8, wherein when the heat source supplies energy, the controller controls the one-way valve element a of the second selector valve to be closed and controls the one-way valve element b of the second selector valve to be opened; when the heat source does not supply energy, the controller controls the one-way valve core a of the second selector valve to be opened and controls the one-way valve core b of the second selector valve to be closed.

10. A storage medium storing at least one instruction, wherein the instruction is read and executed to implement the control method of a refrigeration system using thermal energy according to claim 8 or 9.

Technical Field

The invention relates to the field of refrigeration devices, in particular to a refrigeration system and method utilizing heat energy and a storage medium.

Background

The jet refrigeration system has the characteristics of simple structure, convenience in installation, stability in work, low maintenance cost and the like, and has wide application prospect in the refrigeration field by utilizing heat energy as energy source for driving.

When the jet refrigeration system independently supplies cold, the jet refrigeration system can only stably and normally operate under the condition that the energy supply of the heat source is stable. The invention patent with the authorization number of CN102072541B discloses a cold accumulation type solar injection-compression composite refrigerating unit, wherein the injection refrigerating system is connected with the compression refrigerating system through an intermediate heat exchanger, and a cold accumulation device and a corresponding control valve are arranged in a circulating pipeline of the compression refrigerating system; the unit switches between a solar energy injection-compression mode, namely, an injection compression overlapping mode, a composite cold accumulation operation mode and a single compression cold accumulation operation mode according to the requirement of air conditioning load and the specific situation of solar radiation. However, the application adopts a multi-stage heat exchange mode to cause low heat exchange efficiency, low solar heat utilization rate and low refrigeration efficiency.

Disclosure of Invention

To solve the above problems, the present application provides a refrigeration system, a method and a storage medium using thermal energy.

In a first aspect, a refrigeration system using thermal energy includes a heat exchanger in primary communication with a first pump body and a heat collector;

the secondary side of the heat exchanger is communicated with an inlet of a first injection nozzle, an outlet of the first injection nozzle is connected with an inlet of a condenser through a three-way joint, an injection port of the first injection nozzle is communicated with a compressor through a first electric valve, and the compressor is connected with the inlet of the condenser through a second electric valve and the three-way joint;

the outlet of the condenser is communicated with the first selector valve, one interface of the first selector valve is communicated with the second pump body, the second pump body is communicated with the secondary side of the heat exchanger, the other interface of the first selector valve is communicated with the inlet of the second injection nozzle, the outlet of the second injection nozzle is communicated with the gas-liquid separator, the liquid outlet of the gas-liquid separator is communicated with the inlet of the evaporator through an expansion valve, the gas outlet of the gas-liquid separator is communicated with the compressor, and the outlet of the evaporator is communicated with the injection port of the second injection nozzle.

Furthermore, the primary side of the heat exchanger, the first pump body and the heat collector are filled with heat-conducting media; and refrigerating media are arranged in the secondary side of the heat exchanger, the first injection nozzle, the condenser, the second injection nozzle, the gas-liquid separator, the evaporator and the compressor.

Furthermore, the first injection nozzle and the second injection nozzle comprise convergent pipes, throats of the convergent pipes are communicated with the mixing pipe, the convergent pipes are communicated with the injection ports, and the mixing pipe is communicated with the expansion pipe.

Furthermore, a one-way valve body c pointing to the second pump body from the condenser and a one-way valve body d pointing to the second injection nozzle from the condenser are arranged in the first selector valve.

Furthermore, the gas outlet of the gas-liquid separator is communicated with the compressor through a one-way valve, and the one-way valve is provided with a one-way valve core pointing to the compressor from the gas-liquid separator.

Furthermore, an outlet of the evaporator is communicated with the compressor and an injection port of the second injection nozzle through a second selection valve, and the second selection valve is provided with a one-way valve core a pointing to the compressor from the evaporator and a one-way valve core b pointing to the second injection nozzle from the evaporator.

Furthermore, the first pump body, the second pump body and compressor electric connection drive module, drive module electric connection controller, first motorised valve of controller electric connection, second motorised valve, first selection valve, check valve and second selection valve, controller electric connection measures the temperature sensor of refrigerating system effect ambient temperature, controller electric connection trigger module, trigger module detects the heat source and whether supplies energy.

In a second aspect, the present application provides a method of controlling a refrigeration system using thermal energy, comprising

Whether the heat source supplies energy or not is detected,

when the heat source supplies energy, the controller controls the first electric valve to be opened and the second electric valve to be closed, the controller controls the one-way valve body c and the one-way valve body d of the first selection valve to be opened, the controller controls the first pump body, the second pump body and the compressor to operate through the driving module,

when the heat source does not supply energy, the controller controls the first electric valve to be closed and the second electric valve to be opened, the controller controls the one-way valve body c of the first selection valve to be closed and the one-way valve body d of the first selection valve to be opened, and the controller controls the first pump body and the second pump body to be closed through the driving module and controls the compressor to operate through the driving module.

Furthermore, when the heat source supplies energy, the controller controls the one-way valve core a of the second selector valve to close and controls the one-way valve core b of the second selector valve to open; when the heat source does not supply energy, the controller controls the one-way valve core a of the second selector valve to be opened and controls the one-way valve core b of the second selector valve to be closed.

In a third aspect, the present application provides a storage medium storing at least one instruction, and reading and executing the instruction to implement the control method of the refrigeration system using thermal energy.

The refrigeration system, the method and the storage medium utilizing the heat energy have the following advantages:

this application utilizes the heat collector from solar energy, the absorption heat of car used heat or life production used heat, and the heat passes through heat-conducting medium and exchanges the refrigerant for the secondary side through heat exchanger for refrigerant vaporization, gaseous refrigerant flow through first injection nozzle produces on the one hand and penetrates the effect, and refrigerant is continuously taken out from the injection mouth of first injection nozzle, and on the other hand is in the adiabatic expansion of expansion pipe department of first injection nozzle, and the internal energy temperature reduces, makes refrigerant easily through the condenser condensation. The refrigeration medium is provided to the gas-liquid separator through the second injection nozzle, the gas-state refrigeration medium and the liquid-state refrigeration medium are separated in the gas-liquid separator, the liquid-state refrigeration medium is evaporated to the evaporator through the expansion valve to take away heat, and the gas-state refrigeration medium of the evaporator is extracted due to the negative pressure of the second injection nozzle, so that the refrigeration cycle during heat supply of a heat source is realized. When solar energy, automobile lung heat or life production waste heat is not generated, the refrigeration medium is directly compressed by the compressor and then condensed by the condenser, and the liquid refrigeration medium is evaporated by the evaporator to absorb heat to generate a refrigeration effect, so that refrigeration circulation when a heat source does not supply heat is realized. The refrigeration system can fully utilize waste heat to refrigerate, reduces energy consumption, and can utilize the compressor to compress the refrigeration medium to refrigerate when the waste heat is unstable, so that the refrigeration stability under various conditions is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a block diagram of a refrigeration system using heat energy according to an embodiment of the present invention;

fig. 2 is a block diagram of another refrigeration system using heat energy according to an embodiment of the present invention;

FIG. 3 is a flow chart illustrating control of the refrigeration system utilizing thermal energy of FIG. 1 according to an embodiment of the present invention;

fig. 4 is a control flow chart of the refrigeration system using thermal energy shown in fig. 1 according to an embodiment of the present invention.

The reference numbers and meanings in the figures are as follows:

1. the heat energy collection device comprises a heat energy collection module, 11, a heat exchanger, 12, a first pump body, 13, a heat collector, 2, a first injection nozzle, 3, a condenser, 4, a compressor, 41, a first electric valve, 42, a second electric valve, 5, a first selection valve, 6, a second pump body, 7, a second injection nozzle, 8, a gas-liquid separator, 81, a one-way valve, 9, an expansion valve, 10, an evaporator, 101 and a second selection valve.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention will be described with reference to the accompanying drawings.

Example 1

Referring to fig. 1, the present invention provides a refrigeration system using heat energy, including: the thermal energy collection module 1 comprises a heat exchanger 11, wherein the primary side of the heat exchanger 11 is communicated with a first pump body 12, the first pump body 12 is communicated with a heat collector 13, and the heat collector 13 is communicated with the primary side of the heat exchanger 11; the heat transfer medium is filled in the primary side of the heat exchanger 11, the first pump body, and the heat collector 13. The primary side of the heat exchanger 11, the first pump body 12 and the heat collector 13 form a circulating combination of heat transfer medium, and the first pump body 12 drives the heat transfer medium to circulate. In a specific implementation process, when solar energy is utilized, the heat collector 13 is a solar energy heat collector, and when automobile exhaust waste heat or a factory is utilized, the heat collector 13 is a tubular heat exchanger or a fin type heat exchanger.

The secondary side of heat exchanger 11 communicates the first entry of drawing the nozzle 2, the export of first drawing the nozzle 2 is through the entry of three way connection condenser 3, and in the implementation process, refer to and show in figure 2, first drawing the nozzle 2 and including convergent pipe, the throat intercommunication hybrid tube of convergent pipe, hybrid tube department intercommunication sets up draws the mouth, and the hybrid tube communicates the expansion pipe then. The convergent pipe of the first injection nozzle 2 is an inlet of the first injection nozzle 2, and the divergent pipe of the first injection nozzle 2 is an outlet of the first injection nozzle. The injection port of the first injection nozzle 2 is communicated with a compressor 4 through a first electric valve 41, and the compressor 4 is connected with the inlet of the condenser 3 through a second electric valve 42 and the three-way joint.

The outlet of the condenser 3 is communicated with a first selector valve 5, one interface of the first selector valve 5 is communicated with a second pump body 6, and the second pump body 6 is communicated with the secondary side of the heat exchanger 11. Another interface intercommunication second induction nozzle 7 of first selection valve 5 enters the mouth, and is concrete, set up in the first selection valve 5 by the directional check valve body c of second pump body of condenser and by the directional check valve body d of second induction nozzle of condenser. The outlet of the second injection nozzle 7 is connected with a gas-liquid separator 8, the liquid outlet of the gas-liquid separator 8 is communicated with the inlet of an evaporator 10 through an expansion valve 9, the gas outlet of the gas-liquid separator 8 is communicated with the compressor 4, and the outlet of the evaporator 10 is communicated with the injection port of the second injection nozzle 7. In the specific implementation process, the second injection nozzle 7 comprises a convergent pipe, the throat part of the convergent pipe is communicated with a mixing pipe, the convergent pipe is communicated with an injection port, the mixing pipe is communicated with an expansion pipe, the convergent pipe of the second injection nozzle 7 is an inlet of the second injection nozzle 7, and the expansion port of the second injection nozzle 7 is an outlet of the second injection nozzle 7.

Specifically, refrigeration media are arranged in the secondary side of the heat exchanger 11, the first injection nozzle 2, the condenser 3, the second injection nozzle 7, the gas-liquid separator 8, the evaporator 10 and the compressor 4.

In a specific implementation process, a gas outlet of the gas-liquid separator 8 is communicated with the compressor 4 through a one-way valve 81, and the one-way valve 81 is provided with a one-way valve core pointing to the compressor from the gas-liquid separator.

The first pump body 12, the second pump body 6 and the compressor 4 are electrically connected with a driving module, the driving module is electrically connected with a controller, and the controller controls the operation of the first pump body 12, the second pump body 6 and the compressor 4 through the driving module.

The first selection valve 5, the first electric valve 41, the second electric valve 42 and the check valve 81 are electrically connected to the controller, and the controller controls the opening and closing of the first selection valve 5, the first electric valve 41, the second electric valve 42 and the check valve 81.

The controller is electrically connected with a temperature sensor for measuring the temperature of the environment where the refrigerating system acts.

The controller electric connection trigger module, trigger module detects whether the heat source supplies energy, and in the specific implementation process, trigger module includes thermistor, thermistor one end ground connection, the other end is through divider resistance power connection, electric connection is in an input of comparator between thermistor and the divider resistance, adjustable reference voltage is input to another input of comparator, thermistor set up in heat collector 13 department, it considers the heat source heat supply when the heat collector 13 department temperature of measurement through trigger module surpasss the settlement temperature (by reference voltage decision).

Example 2

Referring to fig. 2, the embodiment 2 is different from the embodiment 1 in that an outlet of the evaporator 10 is communicated with the compressor 4 and an injection port of the second injection nozzle 14 through a second selection valve 101, and the second selection valve 101 is provided with a check valve core a directed from the evaporator to the compressor and a check valve core b directed from the evaporator to the second injection nozzle.

The controller is electrically connected to the second selector valve 101.

Example 3

Referring to fig. 3, the method for controlling a refrigeration system using heat energy, when applied to the structure of embodiment 1, includes:

the controller detects whether the heat source supplies energy through the trigger module.

When the heat source supplies energy, the controller controls the first electric valve to be opened and the second electric valve to be closed, the controller controls the one-way valve body c and the one-way valve body d of the first selection valve 5 to be opened, and the controller controls the first pump body, the second pump body and the compressor to operate through the driving module.

When the heat source is not powered, the controller controls the first electric valve to be closed and the second electric valve to be opened, the controller controls the one-way valve body c of the first selector valve 5 to be closed and the one-way valve body d to be opened, and the controller controls the first pump body and the second pump body to be closed through the driving module and controls the compressor to operate through the driving module.

Example 4

Referring to fig. 4, the method for controlling a refrigeration system using heat energy, when applied to the structure of embodiment 2, includes:

the controller detects whether the heat source supplies energy through the trigger module.

When a heat source supplies energy, the controller controls the first electric valve to be opened and the second electric valve to be closed, the controller controls the one-way valve body c and the one-way valve body d of the first selector valve 5 to be opened, the controller controls the first pump body, the second pump body and the compressor to operate through the driving module, and the controller controls the one-way valve core a of the second selector valve to be closed and controls the one-way valve core b of the second selector valve to be opened.

When the heat source does not supply energy, the controller controls the first electric valve to be closed and the second electric valve to be opened, the controller controls the one-way valve body c of the first selector valve 5 to be closed and the one-way valve body d of the first selector valve to be opened, the controller controls the first pump body and the second pump body to be closed through the driving module and controls the compressor to operate through the driving module, and the controller controls the one-way valve core a of the second selector valve to be opened and controls the one-way valve core b of the second selector valve to be closed.

Example 5

The embodiment of the application provides a storage medium, wherein the storage medium stores at least one instruction, and the instruction is read and executed to realize the control method of the refrigeration system utilizing heat energy.

This application utilizes the heat collector from solar energy, the absorption heat of car used heat or life production used heat, and the heat passes through heat-conducting medium and exchanges the refrigerant for the secondary side through heat exchanger for refrigerant vaporization, gaseous refrigerant flow through first injection nozzle produces on the one hand and penetrates the effect, and refrigerant is continuously taken out from the injection mouth of first injection nozzle, and on the other hand is in the adiabatic expansion of expansion pipe department of first injection nozzle, and the internal energy temperature reduces, makes refrigerant easily through the condenser condensation. The refrigeration medium is provided to the gas-liquid separator through the second injection nozzle, the gas-state refrigeration medium and the liquid-state refrigeration medium are separated in the gas-liquid separator, the liquid-state refrigeration medium is evaporated to the evaporator through the expansion valve to take away heat, and the gas-state refrigeration medium of the evaporator is extracted due to the negative pressure of the second injection nozzle, so that the refrigeration cycle during heat supply of a heat source is realized. When solar energy, automobile lung heat or life production waste heat is not generated, the refrigeration medium is directly compressed by the compressor and then condensed by the condenser, and the liquid refrigeration medium is evaporated by the evaporator to absorb heat to generate a refrigeration effect, so that refrigeration circulation when a heat source does not supply heat is realized. The refrigeration system can fully utilize waste heat to refrigerate, reduces energy consumption, and can utilize the compressor to compress the refrigeration medium to refrigerate when the waste heat is unstable, so that the refrigeration stability under various conditions is ensured.

It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.