TWI460385B - Hybird refrigeration system and control method thereof - Google Patents

Description

Composite refrigeration system and control method thereof

This proposal relates to a refrigeration system and its control method, in particular to a combined refrigeration system driven by electric power and thermal energy and a control method thereof.

In recent years, due to the problem of global warming, people began to think about how to save energy and reduce carbon emissions to reduce carbon dioxide emissions.

However, Taiwan is located in the subtropical region, so the summer climate is humid and hot and must rely on an air-conditioning device to make the environment comfortable. In the case of general building buildings, air-conditioning equipment accounts for about 40% to 50% of the overall electricity consumption of the building. Moreover, the increase in the average temperature due to warming has increased the demand for air-conditioning equipment. Therefore, how to effectively reduce the energy consumption ratio of air conditioning systems has become one of the topics that technology R&D personnel are pursuing to pursue energy conservation and carbon reduction.

Taking an adsorption refrigeration system as an example, an adsorption refrigeration system can drive refrigeration through a heat source. The above heat source may be heat energy of waste heat discharged by the industry or heat energy generated by solar energy. Therefore, the adsorption refrigeration system will help to improve the energy efficiency and renewable energy utilization of the overall refrigeration system.

However, the refrigeration capacity and performance of conventional adsorption refrigeration systems will vary depending on the temperature of the heat source. As the heat source temperature decreases, the refrigeration capacity and performance of the adsorption refrigeration system also decreases. When the heat source temperature drops below 60 °C and the supply of the heat source is unstable or interrupted, the adsorption refrigeration system will not operate normally, making the adsorption refrigeration system unable to meet the cooling demand. Therefore, the conventional adsorption refrigeration system The system has insufficient operational stability, making the conventional adsorption refrigeration system difficult to be widely used.

The proposal is to provide a composite refrigeration system and a control method thereof, thereby improving the operational stability, energy use efficiency and renewable energy utilization rate of the refrigeration system.

The control method of the composite refrigeration system disclosed in the proposal includes the steps of providing a composite refrigeration system and defining a first temperature and a second temperature, the first temperature being greater than the second temperature. The composite refrigeration system includes a condenser, a refrigerant throttling device, an evaporator, an adsorbent bed module and a compressor, and a first shunt and a second shunt. The adsorption bed module comprises a first adsorption bed and a second adsorption bed arranged in parallel. The two ends of the first shunt tube are respectively connected to the condenser and the adsorption bed module. The two ends of the second shunt tube are respectively connected to the compressor and the evaporator. The compound refrigeration system further includes a first valve body, a second valve body, a third valve body, a fourth valve body, a fifth valve body and a sixth valve body. The first valve body is disposed in the first shunt tube, the second valve body is disposed in the second shunt tube, the third valve body is disposed on the first adsorption bed adjacent to one end of the compressor, and the fourth valve body is disposed on the first adsorption bed adjacent to the evaporation At one end of the device, the fifth valve body is disposed at one end of the second adsorbent bed adjacent to the compressor, and the sixth valve body is disposed at one end of the second adsorbent bed adjacent to the evaporator. Next, determining a relationship between the temperature of the hot water supplied to the adsorption bed module, the first temperature, and the second temperature, as the control compressor, the first valve body, the second valve body, the third valve body, and the The basis of the four valve body, the fifth valve body and the sixth valve body.

The composite refrigeration system disclosed in the proposal comprises a condenser connected in sequence, a refrigerant throttling device, an evaporator, an adsorption bed module and a compressor, And a first shunt tube and a second shunt tube. The adsorption bed module comprises a first adsorption bed and a second adsorption bed arranged in parallel. The two ends of the first shunt tube are respectively connected to the condenser and the adsorption bed module. The two ends of the second shunt tube are respectively connected to the compressor and the evaporator.

According to the composite refrigeration system and the control method thereof disclosed in the above proposal, the compressor is controlled by determining the relationship between the temperature of the hot water supplied to the adsorption bed module, the first temperature and the second temperature. a valve body, a second valve body, a third valve body, a fourth valve body, a fifth valve body and a sixth valve body switch, so that the composite refrigeration system will be able to drive the cooling state, power and heat The switching between the cooling state of the thermal energy composite drive and the cooling state of the electric drive enables the hybrid refrigeration system to achieve both operational stability, energy use efficiency, and renewable energy utilization.

The features, implementation and efficacy of this proposal are described in detail below with reference to the preferred embodiment of the drawings.

Please refer to FIG. 1 and FIG. 1 is a schematic structural view of a composite refrigeration system according to an embodiment of the present proposal.

The composite refrigeration system 10 of the present embodiment includes a condenser 110, a refrigerant throttling device 120, an evaporator 130, an adsorption bed module 140, a compressor 150, a first shunt tube 161, and A second shunt 162. The refrigerant throttling device 120 is configured to limit the flow of the condenser 110 to the refrigerant in the evaporator 130 in the hybrid refrigeration system 10 to cause the refrigerant to achieve the effect of depressurization and expansion. For example, the refrigerant throttle device 120 can be an expansion valve, an orifice plate, or a U-trap, but is not limited thereto. Familiar with this technique The artist can select a suitable device according to the operating conditions of the actual system.

Further, the condenser 110, the refrigerant throttling device 120, the evaporator 130, the adsorption bed module 140, and the compressor 150 are sequentially connected through the pipeline, so that the refrigerant can flow through the condenser 110 and the refrigerant throttling in sequence. After the device 120, the evaporator 130, the adsorption bed module 140 and the compressor 150, it flows back to the condenser 110 to complete a circulation loop. In addition, the adsorption bed module 140 further includes a first adsorption bed 141 and a second adsorption bed 142 arranged in parallel. It should be noted that the adsorption bed module 140 of the embodiment is exemplified by two adsorption beds, but is not limited thereto. For example, in other embodiments, the adsorbent bed module may also include more than three adsorbent beds.

In addition, the two ends of the first shunt tube 161 are respectively connected to the condenser 110 and the adsorption bed module 140, so that the refrigerant in the adsorption bed module 140 can pass through the first shunt tube 161 without passing through the compressor 150. It flows directly to the condenser 110. The two ends of the second shunt tube 162 are respectively connected to the compressor 150 and the evaporator 130, so that the refrigerant in the evaporator 130 can flow directly through the second shunt tube 162 without going through the adsorption bed module 140. Compressor 150.

In addition, the condenser 110 further has a water channel 1101. A cooling water can be introduced into the water channel 1101 to absorb the heat of the refrigerant in the condenser 110, so that the refrigerant in the condenser 110 is changed from a gaseous state to a liquid state. The evaporator 130 further has a water path 1301. The water path 1301 can be connected to a load (such as a freezer or a cold air conditioner). The refrigerant in the evaporator 130 absorbs heat of the fluid in the water path 1301 to change the refrigerant from a liquid to a gaseous state.

Further, the first adsorption bed 141 and the second adsorption bed 142 have a function of adsorbing or desorbing the refrigerant. Further, the first adsorption bed 141 and the second adsorption bed 142 There is a medium inside, which can adsorb the refrigerant, and the adsorption rate of the medium adsorbing the refrigerant is related to the temperature gradient of the medium. Furthermore, the higher the temperature of the medium, the lower the adsorption rate of the adsorbent refrigerant. When the temperature of the medium is lower, the adsorption rate of the adsorbent refrigerant is higher. The medium in the first adsorption bed 141 and the second adsorption bed 142 of the present embodiment is exemplified by a medium composed of silicone and water, but is not limited thereto.

Therefore, the first adsorption bed 141 and the second adsorption bed 142 respectively have a water channel 1411, 1421, and the water channels 1411, 1421 are used for a hot water or cooling water to change the first adsorption bed 141 and the second. The temperature of the medium in the adsorbent bed 142 is such that the first adsorbent bed 141 or the second adsorbent bed 142 is desorbed or adsorbed.

In this embodiment or other embodiments, the composite refrigeration system 10 further includes a first valve body 181, a second valve body 182, a third valve body 183, a fourth valve body 184, and a fifth The valve body 185 and a sixth valve body 186. The first valve body 181 is disposed on the first shunt tube 161 to control whether the refrigerant can flow through the first shunt tube 161. The second valve body 182 is disposed on the second shunt tube 162 to control whether the refrigerant can flow through the second shunt tube 162. The third valve body 183 is disposed at one end of the first adsorption bed 141 adjacent to the compressor 150, and the fourth valve body 184 is disposed at one end of the first adsorption bed 141 adjacent to the evaporator 130. The fifth valve body 185 is disposed on the second adsorption bed 142 adjacent to one end of the compressor 150, and the sixth valve body 186 is disposed on the second adsorption bed 142 adjacent to one end of the evaporator 130. The first valve body 181, the second valve body 182, the third valve body 183, the fourth valve body 184, the fifth valve body 185, and the sixth valve body 186 may be, but not limited to, solenoid valves, the first valve body 181, The two valve body 182, the third valve body 183, the fourth valve body 184, the fifth valve body 185, and the sixth valve body 186 are used to control the circulation path of the refrigerant in the hybrid refrigeration system 10.

In addition, in this embodiment or other embodiments, the hybrid refrigeration system 10 may further include a cooler 170. The cooler 170 has a water path 1701 therein, and the water path 1701 is for circulating cooling water. The cooler 170 is disposed between the adsorption bed module 140 and the compressor 150. The cooler 170 reduces the temperature of the refrigerant entering the compressor 150 by the adsorption bed module 140 by introducing cooling water to increase the compression efficiency of the operation of the compressor 150 and the mass flow rate of the delivered refrigerant, and prolong the compressor 150. Service life.

Moreover, in this or other embodiments, the compressor 150 can be a two-stage and oil-free gas powered compressor. That is, the bearing in the compressor 150 is a magnetic bearing. Therefore, during operation of the compressor 150, the bearings of the compressor 150 need not use refrigeration oil for lubrication and cooling. Therefore, the composite refrigeration system 10 does not need to provide an oil circuit for recirculating oil circulation, an oil separator and an oil return device to prevent the refrigeration oil from contaminating the composite refrigeration system 10 and affecting the evaporator 130 and the condenser 110. The heat transfer effect and the adsorption and desorption effect of the adsorbent bed module. In this way, the complexity of the control and pipeline configuration of the hybrid refrigeration system 10 can be reduced to save costs and improve operating efficiency. Further, since the compressor 150 is a two-stage compression and oil-free gas power compressor, it has a high pressure outlet 151, an intermediate pressure inlet 152, and a low pressure inlet 153. The high pressure outlet 151 is connected to the condenser 110, the medium pressure inlet 152 is connected to the adsorption bed module 140, and the low pressure inlet 153 is connected to the second branch pipe 162 away from one end of the evaporator 130. It should be noted that the compressor 150 of the present embodiment is exemplified by a two-stage and oil-free gas power compressor, but is not intended to limit the proposal.

Next, a control method of the hybrid refrigeration system 10 of the present invention will be described.

Please refer to "2A" and "2B", "2A" is a control schematic of a hybrid refrigeration system according to an embodiment of the present proposal, and "2B" is an embodiment according to the present proposal. Flow chart of the control method of the composite refrigeration system.

First, a hybrid refrigeration system 10 as shown in Fig. 1 is provided, and a first temperature and a second temperature are defined, the first temperature being greater than the second temperature (S101). The actual values of the first temperature and the second temperature are related to the medium components in the first adsorption bed 141 and the second adsorption bed 142. The medium in the embodiment is a medium composed of silicone and water. The corresponding first temperature is taken as an example of 70 degrees Celsius, and the second temperature may be 50 degrees Celsius, but not limited thereto. Those skilled in the art can define the values of the first temperature and the second temperature according to different media components.

Next, the relationship between the temperature of the hot water supplied to the adsorption bed module 140, the first temperature, and the second temperature is judged (S102). The hot water source provided to the adsorption bed module 140 may be heated by industrial waste heat, recycled waste heat or solar energy, but not limited thereto.

If the temperature of the hot water is greater than or equal to the first temperature, the first valve body 181, the fourth valve body 184, and the fifth valve body 185 are opened, and the compressor 150, the second valve body 182, and the third valve body 183 are closed. The sixth valve body 186 (S103). For example, if the temperature of the hot water supplied to the adsorption bed module 140 is, for example, 90 ° C, meaning that the temperature of the hot water is greater than or equal to the first temperature (70 ° C), the temperature of the hot water is high enough. The adsorption bed module 140 is driven to operate normally. At this time, the first valve body 181, the fourth valve body 184, and the fifth valve body 185 are opened, and the compressor 150, the second valve body 182, the third valve body 183, and the sixth are closed. Valve body 186. In this way, the evaporator 130 is connected to the first adsorption bed 141, and the second adsorption bed 142 is communicated with the condenser 110 through the first branch pipe 161, as shown in "FIG. 2A".

Then, a cooling water is introduced into the first adsorption bed 141 through the water passage 1411 to cool the temperature of the medium in the first adsorption bed 141, so that the first adsorption bed 141 adsorbs the refrigerant from the evaporator 130, such as "the first 2A is shown (S104). At the same time, the hot water is passed to the second adsorption bed 142 to raise the temperature of the medium in the second adsorption bed 142 to desorb the refrigerant adsorbed by the second adsorption bed 142 to the condenser 110, as shown in FIG. 2A. Show (S105). Since the temperature of the hot water (90 ° C) is higher than the first temperature (70 ° C), it means that the energy of the heat source supplied to the adsorption bed module 140 is sufficient, so that the pressure of the gaseous refrigerant desorbed by the second adsorption bed 142 can be The condensing pressure is reached. Therefore, the gaseous refrigerant will flow directly from the second adsorbent bed 142 to the condenser 110 without passing through the compressor 150, so that the hybrid refrigeration system 10 at this time is a heat-driven cooling state.

Please refer to "3A" and "3B", "3A" is a schematic diagram of the control of the composite refrigeration system according to another embodiment of the present proposal, and "3B" is another according to the proposal. A flow chart of a control method of a composite refrigeration system of an embodiment.

In the step S105 of the "Fig. 2A" and the "Section 2B", when the first adsorbent bed 141 adsorbs the refrigerant for a predetermined time, the third valve body 183 and the sixth valve body 186 are opened and closed. The fourth valve body 184 and the fifth valve body 185 (S106). The above-mentioned established time can be adjusted according to actual needs. At this time, the first adsorption bed 141 will not communicate with the evaporator 130 but pass through the first branch pipe 161 to communicate with the condensation. 110. The second adsorption bed 142 is not in communication with the condenser 110 but is in communication with the evaporator 130 as shown in "FIG. 3A".

At this time, the cooling water is passed to the second adsorption bed 142 to cool the temperature of the medium in the second adsorption bed 142, so that the second adsorption bed 142 adsorbs the refrigerant from the evaporator 130, as shown in FIG. 3A. (S107). At the same time, the hot water is introduced into the first adsorption bed 141 to raise the temperature of the medium in the first adsorption bed 141 to desorb the refrigerant adsorbed by the first adsorption bed 141 to the condenser 110, as shown in "Fig. 3A". Show (S108). When the second adsorption bed 142 performs the adsorption of the refrigerant for a predetermined time, the third valve body 183 and the sixth valve body 186 are closed again, and the fourth valve body 184 and the fifth valve body 185 are again opened to return to the "2A". Diagram of the control shown in the figure. In this way, the operation of the first adsorption bed 141 and the second adsorption bed 142 is continuously exchanged to enable the adsorption bed module 140 to continue to operate.

Please refer to "4A" and "4B", "4A" is a control schematic of a composite refrigeration system according to another embodiment of the present proposal, and "4B" is another according to the proposal. A flow chart of a control method of a composite refrigeration system of an embodiment.

First, a hybrid refrigeration system 10 as shown in "FIG. 1" is provided, and a first temperature and a second temperature are defined, the first temperature being greater than the second temperature (S201). The actual values of the first temperature and the second temperature are related to the medium in the first adsorption bed 141 and the second adsorption bed 142. The medium in the embodiment is exemplified by a medium composed of silicone and water, and The corresponding first temperature is taken as an example of 70 degrees Celsius, and the second temperature may be 50 degrees Celsius, but not limited thereto. Those who are familiar with this skill can The values of the first temperature and the second temperature are defined correspondingly according to different media components.

Next, the relationship between the temperature of the hot water supplied to the adsorption bed module 140, the first temperature, and the second temperature is judged (S202).

If the temperature of the hot water is less than the first temperature and greater than the second temperature, the compressor 150, the fourth valve body 184 and the fifth valve body 185 are turned on, and the first valve body 181, the second valve body 182, and the third valve are closed. The body 183 and the sixth valve body 186 (S203). For example, if the temperature of the hot water supplied to the adsorption bed module 140 is, for example, 60 ° C, meaning that the temperature of the hot water is less than the first temperature (70 ° C) and greater than the second temperature (50 ° C), it represents heat. The temperature of the water is not sufficiently high, so that the ability of the adsorbent bed module 140 to desorb the refrigerant is insufficient. At this time, the compressor 150, the fourth valve body 184, and the fifth valve body 185 are opened, and the first valve body 181, the second valve body 182, the third valve body 183, and the sixth valve body 186 are closed. In this manner, the evaporator 130 is caused to communicate with the first adsorption bed 141, and the second adsorption bed 142 is communicated with the condenser 110 through the compressor 150.

Next, a cooling water is passed to the first adsorption bed 141 to cool the temperature of the medium in the first adsorption bed 141, so that the first adsorption bed 141 adsorbs the refrigerant from the evaporator 130, as shown in FIG. 4A. (S204). At the same time, the hot water is passed to the second adsorption bed 142 to raise the temperature of the medium in the second adsorption bed 142 to desorb the refrigerant adsorbed by the second adsorption bed 142 to the compressor 150, and the refrigerant is pressurized by the compressor 150. Then, it flows to the condenser 110 as shown in "Fig. 4A" (S205). Similarly, when the first adsorbent bed 141 performs the adsorption of the refrigerant for a predetermined period of time, the working states of the first adsorbent bed 141 and the second adsorbent bed 142 are exchanged (as in the examples of "A2A" and "3A"). Switching) to enable continuous operation of the adsorbent bed module 140.

According to the embodiment, since the temperature of the hot water (60 ° C) is less than the first temperature (70 ° C) and greater than the second temperature (50 ° C), the energy source of the heat source supplied to the adsorption bed module 140 is slightly insufficient. The pressure of the gaseous refrigerant desorbed by the second adsorbent bed 142 is such that the condensation pressure cannot be reached. Therefore, the gaseous refrigerant desorbed by the second adsorption bed 142 will be pressurized to the condensing pressure via the compressor 150 before flowing to the condenser 110, so that the composite refrigeration system 10 at this time is a combination of electric and thermal energy-driven refrigeration. status.

Please refer to "5A" and "5B", "5A" is a control schematic of a composite refrigeration system according to another embodiment of the present proposal, and "5B" is another according to the proposal. A flow chart of a control method of a composite refrigeration system of an embodiment.

First, a composite refrigeration system 10 as shown in "FIG. 1" is provided, and defines a first temperature and a second temperature, the first temperature being greater than the second temperature (S301). The actual values of the first temperature and the second temperature are related to the medium in the first adsorption bed 141 and the second adsorption bed 142. The medium in the embodiment is exemplified by a medium composed of silicone and water, and The corresponding first temperature is taken as an example of 70 degrees Celsius, and the second temperature may be 50 degrees Celsius, but not limited thereto. Those skilled in the art can define the values of the first temperature and the second temperature according to different media components.

Next, the relationship between the temperature of the hot water supplied to the adsorption bed module 140, the first temperature, and the second temperature is judged (S302).

If the temperature of the hot water is less than or equal to the second temperature, the compressor 150 and the second valve body 182 are turned on, and the first valve body 181, the third valve body 183, the fourth valve body 184, the fifth valve body 185, and the first valve body are closed. Six valve body 186 (S303). For example, if provided to an adsorption bed The temperature of the hot water of the module 140 is, for example, 40 ° C, meaning that the temperature of the hot water is less than or equal to the second temperature (50 ° C), which means that the temperature of the hot water is too low to drive the adsorption bed module 140 to operate. At this time, the compressor 150 and the second valve body 182 are turned on, and the first valve body 181, the third valve body 183, the fourth valve body 184, the fifth valve body 185, and the sixth valve body 186 are closed. As such, the evaporator 130 will pass through the second shunt 162 to communicate with the compressor 150, while the evaporator 130 will not communicate with the first adsorbent bed 141 and the second adsorbent bed 142.

Next, the refrigerant is directly supplied from the evaporator 130 to the compressor 150, and the refrigerant is pressurized by the compressor 150 and then flows to the condenser 110 as shown in "Fig. 5A" (S304). According to the present embodiment, since the temperature of the hot water (40 ° C) is less than or equal to the second temperature (50 ° C), it means that the energy supplied to the heat source of the adsorption bed module 140 is seriously insufficient to drive the operation of the adsorption bed module 140. Therefore, the gaseous refrigerant will flow directly from the evaporator 130 to the compressor 150 through the second shunt 162, and the gaseous refrigerant will be pressurized to the condensing pressure via the compressor 150 before flowing to the condenser 110, so that the composite at this time The refrigeration system 10 is an electrically driven cooling state.

The composite refrigeration system and the control method thereof according to the above embodiment control the compressor and the first valve by judging the relationship between the temperature of the hot water supplied to the adsorption bed module, the first temperature, and the second temperature The switch of the body, the second valve body, the third valve body, the fourth valve body, the fifth valve body and the sixth valve body, so that the composite refrigeration system can be combined with the heat-driven cooling state, electric power and thermal energy The switching between the cooling state of the drive and the cooling state of the electric drive enables the hybrid refrigeration system to achieve both operational stability, energy use efficiency, and renewable energy utilization.

Furthermore, the proposed hybrid refrigeration system has the following advantages over the adsorption refrigeration system:

First, improving the refrigeration capacity and performance of the adsorption refrigeration system is affected by the temperature of the heat source (hot water), so that the temperature range of the heat source (hot water) available to the adsorption refrigeration system is increased.

Second, reducing the temperature of the heat source (hot water) required for the adsorption refrigeration system, so that the low-temperature waste heat generated by the industry can also be effectively utilized.

Third, reduce the installation area and cost of the collector of the solar-powered adsorption refrigeration system.

Fourth, reduce the volume and weight of the adsorption refrigeration system to improve the efficiency of the system and the benefits of the application.

Fifth, to solve the problem that when the temperature of the heat source (hot water) is lowered or unstable, the adsorption refrigeration system will not operate normally and cannot provide the cooling demand.

While the present invention has been disclosed in the foregoing preferred embodiments, it is not intended to limit the present invention. Any skilled person skilled in the art can make some changes and refinements without departing from the spirit and scope of the present proposal. The scope of patent protection of the proposal shall be subject to the definition of the scope of the patent application attached to this specification.

10‧‧‧Composite refrigeration system

110‧‧‧Condenser

1101‧‧‧ Waterway

120‧‧‧Refrigerant throttling device

130‧‧‧Evaporator

1301‧‧‧ Waterway

140‧‧‧Adsorption bed module

141‧‧‧First adsorption bed

1411‧‧‧ Waterway

142‧‧‧Second adsorption bed

1421‧‧‧ Waterway

150‧‧‧Compressor

151‧‧‧High pressure exit

152‧‧‧ medium pressure inlet

153‧‧‧Low-pressure entrance

161‧‧‧First shunt

162‧‧‧Second shunt

170‧‧‧cooler

1701‧‧‧ Waterway

181‧‧‧First valve body

182‧‧‧Second body

183‧‧‧ third valve body

184‧‧‧fourth valve body

185‧‧‧ fifth valve body

186‧‧‧ sixth valve body

Figure 1 is a schematic view showing the structure of a composite refrigeration system according to an embodiment of the present proposal.

Fig. 2A is a schematic view showing the control of the composite refrigeration system according to an embodiment of the present proposal.

2B is a flow chart of a control method of the hybrid refrigeration system according to an embodiment of the present proposal.

Figure 3A is a schematic diagram of the control of a composite refrigeration system in accordance with another embodiment of the present proposal.

3B is a flow chart of a control method of the hybrid refrigeration system according to another embodiment of the present proposal.

Figure 4A is a schematic diagram of the control of a composite refrigeration system in accordance with another embodiment of the present proposal.

4B is a flow chart of a control method of the hybrid refrigeration system according to another embodiment of the present proposal.

Figure 5A is a schematic diagram of the control of a composite refrigeration system in accordance with another embodiment of the present proposal.

Figure 5B is a flow chart of a control method of a hybrid refrigeration system according to another embodiment of the present proposal.

10‧‧‧Composite refrigeration system

110‧‧‧Condenser

1101‧‧‧ Waterway

120‧‧‧Refrigerant throttling device

130‧‧‧Evaporator

1301‧‧‧ Waterway

140‧‧‧Adsorption bed module

141‧‧‧First adsorption bed

1411‧‧‧ Waterway

142‧‧‧Second adsorption bed

1421‧‧‧ Waterway

150‧‧‧Compressor

151‧‧‧High pressure exit

152‧‧‧ medium pressure inlet

153‧‧‧Low-pressure entrance

161‧‧‧First shunt

162‧‧‧Second shunt

170‧‧‧cooler

1701‧‧‧ Waterway

181‧‧‧First valve body

182‧‧‧Second body

183‧‧‧ third valve body

184‧‧‧fourth valve body

185‧‧‧ fifth valve body

186‧‧‧ sixth valve body

Claims (9)

A control method for a composite refrigeration system, the method comprising: providing a composite refrigeration system, and defining a first temperature and a second temperature, the first temperature being greater than the second temperature, the composite refrigeration system comprising: a condenser, a refrigerant throttling device, an evaporator, an adsorption bed module and a compressor, wherein the adsorption bed module comprises a first adsorption bed and a second adsorption bed arranged in parallel; a shunt tube, the two ends of which are respectively connected to the condenser and the adsorption bed module; a second shunt tube, the two ends of which are respectively connected to the compressor and the evaporator; and a first valve body and a second valve body a third valve body, a fourth valve body, a fifth valve body and a sixth valve body, the first valve body is disposed on the first shunt pipe, and the second valve body is disposed on the second shunt pipe The third valve body is disposed on the first adsorption bed adjacent to one end of the compressor, the fourth valve body is disposed on the first adsorption bed adjacent to one end of the evaporator, and the fifth valve body is disposed on the second adsorption The bed is adjacent to one end of the compressor, and the sixth valve body is disposed adjacent to the second adsorption bed One end of the evaporator; and determining a relationship between a temperature of the hot water supplied to the adsorption bed module, the first temperature, and the second temperature to control the compressor, the first valve body, the first The basis of the second valve body, the third valve body, the fourth valve body, the fifth valve body and the sixth valve body. The control method of the composite refrigeration system according to claim 1, wherein the step further comprises: if the temperature of the hot water is greater than or equal to the first temperature, opening the first valve body, the fourth valve body, and the first a five-valve body, and closing the compressor, the second valve body, the third valve body and the sixth valve body; allowing a cooling water to pass into the first adsorption bed to cool the temperature of the first adsorption bed, So that the first adsorbent bed adsorbs the refrigerant from the evaporator; and the hot water is introduced into the second adsorbent bed to raise the temperature of the second adsorbent bed to desorb the refrigerant adsorbed by the second adsorbent bed To the condenser. The control method of the composite refrigeration system according to claim 2, wherein the step further comprises: opening the third valve body and the sixth valve body when the first adsorption bed adsorbs the refrigerant for a predetermined time, and closing The fourth valve body and the fifth valve body; let the cooling water pass into the second adsorption bed to cool the temperature of the second adsorption bed, so that the second adsorption bed adsorbs the refrigerant from the evaporator; The hot water is passed to the first adsorption bed to raise the temperature of the first adsorption bed to desorb the refrigerant adsorbed by the first adsorption bed to the condenser. The control method of the composite refrigeration system according to claim 1, the method further comprising: if the temperature of the hot water is less than the first temperature and greater than the second temperature, turning on the compressor, the fourth valve body, and The fifth valve body, and closing the first valve body, the second valve body, the third valve body and the sixth valve body; allowing a cooling water to pass into the first adsorption bed to cool the first adsorption a temperature of the bed such that the first adsorbent bed adsorbs refrigerant from the evaporator; and passing the hot water to the second adsorbent bed to raise the temperature of the second adsorbent bed To desorb the refrigerant adsorbed by the second adsorption bed to the compressor, and the refrigerant is pressurized by the compressor and flows to the condenser. The control method of the composite refrigeration system according to claim 1, the method further comprising: if the temperature of the hot water is less than or equal to the second temperature, turning on the compressor and the second valve body, and closing the first a valve body, the third valve body, the fourth valve body, the fifth valve body and the sixth valve body; and flowing a refrigerant from the evaporator to the compressor, and the refrigerant flows through the compressor To the condenser. A composite refrigeration system comprising: a condenser connected in sequence, a refrigerant throttling device, an evaporator, an adsorption bed module and a compressor, the adsorption bed module comprising a first adsorption bed arranged in parallel And a second adsorption bed; a first shunt tube, the two ends of which are respectively connected to the condenser and the adsorption bed module; a second shunt tube, the two ends of which are respectively connected to the compressor and the evaporator; a valve body, a second valve body, a third valve body, a fourth valve body, a fifth valve body and a sixth valve body, wherein the first valve body is disposed on the first shunt tube, the second a valve body is disposed in the second shunt tube, the third valve body is disposed on the first adsorption bed adjacent to one end of the compressor, and the fourth valve body is disposed on the first adsorption bed adjacent to one end of the evaporator, the first valve body The five valve body is disposed on the second adsorption bed adjacent to one end of the compressor, and the sixth valve body is disposed on the second adsorption bed adjacent to one end of the evaporator. The composite refrigeration system according to claim 6, further comprising a cooler disposed between the adsorption bed module and the compressor. The compound refrigeration system of claim 6, wherein the compressor is a one-stage compression and oil-free gas power compressor. The composite refrigeration system of claim 6, wherein the compressor has a high pressure outlet, a medium pressure inlet, and a low pressure inlet, the high pressure outlet is connected to the condenser, and the medium pressure inlet is connected to the adsorption bed module, A low pressure inlet connects the first shunt.