CN210463647U - Aquaculture temperature control system - Google Patents

Abstract

The utility model provides an aquaculture temperature control system, which solves the technical problem that the existing aquaculture circulating water system cannot be popularized and applied in a large scale due to the defects which cannot be objectively overcome in the ground source heat pump technology, and is provided with a compressor, a four-way valve and the like; the four-way valve is provided with a first interface, a second interface, a third interface and a fourth interface; the outlet end of the compressor is communicated with the first connector, the second connector is communicated with the inlet end of the gas-liquid separator, and the outlet end of the gas-liquid separator is communicated with the inlet end of the compressor; the third interface is communicated with the air heat exchanger, the air heat exchanger is communicated with the expansion valve, the expansion valve is communicated with the heat exchange tube of the culture water heat exchanger, and the heat exchange tube of the culture water heat exchanger is communicated with the fourth interface; the water inlet pipe of the culture water heat exchanger is communicated with a circulating water pump; the circulating water pump is communicated with the filter, and the filter is communicated with the culture pond; the water outlet pipe of the aquaculture water heat exchanger is communicated with the aquaculture pond, and can be widely applied to the technical field of aquaculture.

Description

Aquaculture temperature control system

Technical Field

The utility model relates to an aquaculture technical field, in particular to aquaculture temperature control system.

Background

Since the 90 s of the 20 th century, with the enhancement of comprehensive strength of the country and the local and the improvement of the fishery science and technology level, the industrial aquaculture of aquatic products has emerged quietly as a new industry and is rapidly expanded nationwide, and the industrial aquaculture of aquatic products has become a new pillar industry at present. However, with the rapid development, negative effects such as environmental pollution and energy consumption caused by heating by using a traditional coal-fired boiler are gradually shown. The utility model with bulletin number 208362123U discloses an aquaculture circulating water system temperature regulating device, it includes breed pond, particle machine, excessive pond, elevator pump, albumen separator, biological pond, cistern, disinfecting equipment, temperature regulating equipment, adopts heat pump temperature control technique to be used for aquaculture circulating water system to have important energy-conservation and environmental protection and economic value. From the aspect of environmental protection, the ground source heat pump system does not have CO generated by combustion of a coal-fired boiler₂、SO₂And various pollutants such as smoke dust and the like are discharged, so that the environment-friendly effect is achieved. The temperature is controlled by adopting the ground source heat pump technology in the aquaculture circulating water system, the method is a better scheme for replacing the traditional coal-fired boiler, has important energy-saving, environmental-protection and economic values, has very obvious economic and social benefits, and meets the basic policy of energy and environmental protection and the sustainable development requirement of national economy in China at present. However, in the actual use process, the ground source heat pump technology has a plurality of defects which cannot be objectively overcome, and cannot be popularized and applied in large scale across the country, for example:

(1) the ground source heat pump system is complex in construction. Before the construction of a ground source heat pump system, the geographical environment of an installation position needs to be tested, thermophysical property test is carried out, and the efficiency of energy exchange of an underground rock-soil layer is observed. Meanwhile, when outdoor partial construction is carried out, all factors such as the proportion among all loops, the gradient of a horizontal buried pipe, the pipeline connection stress and the like need to be considered.

(2) Ground source heat pump systems. In order to maintain a proper temperature in the underground rock-soil layer for heat exchange, the ground source heat pump system needs to maintain a sufficient distance between the drill holes during the construction of the buried pipe system. In order to ensure that the heat and cold input to the underground by the ground source heat pump can be absorbed by the ground, the drill holes cannot be arranged too close to each other.

(3) The ground source heat pump system is drilled once. After the hole is drilled, the buried pipeline of the ground source heat pump is immediately placed in the ground source heat pump system, the drilled hole is backfilled, and the drilled hole becomes a permanent facility after the backfilling of the drilled hole and is integrated with the ground. Later, if the drilling hole is required to be modified and maintained, the modification and maintenance are basically impossible.

Disclosure of Invention

The utility model aims at solving the defects of the prior art, and provides an aquaculture temperature control system which has simple structure and convenient use and is suitable for large-scale popularization and use.

Therefore, the utility model provides an aquaculture temperature control system, which is provided with a compressor, a four-way valve, a gas-liquid separator, an air heat exchanger, an expansion valve, a culture water heat exchanger, a circulating water pump, a filter and a culture pond; the four-way valve is provided with a first interface, a second interface, a third interface and a fourth interface; the outlet end of the compressor is communicated with the first connector, the second connector is communicated with the inlet end of the gas-liquid separator, and the outlet end of the gas-liquid separator is communicated with the inlet end of the compressor; the third interface is communicated with a first inlet and outlet end of the air heat exchanger, a second inlet and outlet end of the air heat exchanger is communicated with a third inlet and outlet end of the expansion valve, a fourth inlet and outlet end of the expansion valve is communicated with a fifth inlet and outlet end of a heat exchange tube of the culture water heat exchanger, and a sixth inlet and outlet end of the heat exchange tube of the culture water heat exchanger is communicated with the fourth interface; the inlet pipe of the culture water heat exchanger is communicated with the outlet of the circulating water pump; the inlet of the circulating water pump is communicated with a filter, and the filter is communicated with a water discharge pipe of the culture pond; the water outlet pipe of the culture water heat exchanger is communicated with the water inlet pipe of the culture pond.

Preferably, the device is also provided with a water inlet hole pipe and a water outlet hole pipe, and the water inlet hole pipe and the water outlet hole pipe are both arranged in the culture pond; the water inlet hole pipe and the water outlet hole pipe are both of tubular structures, a water inlet hole penetrates through the pipe wall of the water inlet hole pipe, and a water outlet hole penetrates through the pipe wall of the water outlet hole pipe; the water inlet pipe is communicated with the water inlet pipe of the culture pond, and the water outlet pipe is communicated with the water discharge pipe of the culture pond.

Preferably, the intelligent water flow control device is also provided with an intelligent control system, a water flow switch and an alarm device; the intelligent control system is provided with an intelligent control device, and the water flow switch is arranged in a water outlet pipe of the culture water heat exchanger; the intelligent control device is respectively connected with the water flow switch, the circulating water pump and the alarm device through control circuits.

Preferably, the system is also provided with an inlet water temperature sensor and an outlet water temperature sensor, wherein the inlet water temperature sensor is arranged in the inlet pipe of the culture water heat exchanger, and the outlet water temperature sensor is arranged in the inlet pipe of the culture water heat exchanger; the intelligent control device is respectively connected with the inlet water temperature sensor, the outlet water temperature sensor and the compressor through control circuits.

Preferably, the breeding water heat exchanger is provided with an outer shell and a heat exchange tube; the outer shell is of a vertical tank-shaped structure, an inner cavity of the outer shell is arranged in the outer shell, and a water inlet pipe, a water outlet pipe and a sewage discharge pipe which are communicated with the inner cavity of the outer shell are respectively connected outside the outer shell; the heat exchange tube is arranged in the inner cavity of the outer shell, a fifth inlet and outlet end and a sixth inlet and outlet end of the heat exchange tube respectively penetrate through the outer shell and extend out of the outer shell, the water inlet pipe is connected and arranged at the bottom of the side wall of the outer shell, and the water inlet pipe is arranged along the tangential direction of the inner wall of the inner cavity of the outer shell; the water outlet pipe is connected with the top of the side wall of the outer shell and arranged along the tangential direction of the inner wall of the inner cavity of the outer shell, so that water is discharged along the tangential direction of the inner wall of the inner cavity of the outer shell; the bottom of the inner cavity of the outer shell is of an inverted cone structure, and a blow-off pipe is connected and arranged at the cone bottom of the outer shell.

Preferably, the outer shell is provided with an upper shell, a middle shell and a lower shell; the upper shell is of a round cap structure, the middle shell is of a cylindrical structure, and the lower shell is of a funnel structure; the upper shell, the middle shell and the lower shell are sequentially connected in a sealing manner from top to bottom to form a vertical tank-shaped structure, and the inner walls of the upper shell, the middle shell and the lower shell enclose an inner cavity of the outer shell; the upper shell is communicated with the water outlet pipe, and the water outlet pipe is arranged along the tangential direction of the circumference of the inner wall of the upper shell, so that water is discharged along the tangential direction of the inner wall of the upper shell; the lower shell is communicated with the water inlet pipe, and the water inlet pipe is arranged along the tangential direction of the circumference of the inner wall of the lower shell.

Preferably, the device is also provided with an inner shell, the inner shell is of a cylindrical structure, the inner shell is longitudinally arranged in the inner cavity of the outer shell, and the upper part of the inner shell is connected with the upper shell; the heat exchange tubes are wound on the outer wall of the inner shell in a layered and spiral manner.

Preferably, the material of the outer shell and the inner shell is one of PVC, PP, PE or engineering plastics.

Preferably, the heat exchange tube is a titanium tube.

The utility model has the advantages that: the utility model provides an aquaculture temperature control system, which adopts air as a heat exchange source, applies the inverse Carnot principle, and directly enters a heat exchange tube in a aquaculture water heat exchanger through a four-way valve to release heat to aquaculture water so as to improve the temperature of aquaculture water in an aquaculture pond; high-temperature and high-pressure gas generated by the compressor is turned by the four-way valve, is discharged by the air heat exchanger in sequence, is decompressed into low-temperature and low-pressure liquid by the expansion valve, then enters the heat exchange tube in the culture water heat exchanger to absorb heat to culture water, and further reduces the temperature of the culture water in the culture pond. Compared with the prior ground source heat pump technology, the utility model discloses simple structure, convenient to use is applicable to extensive using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the working principle of the present invention for heating cultivation water;

FIG. 3 is a schematic structural view of the working principle of the present invention for cooling cultivation water;

FIG. 4 is a schematic structural view of the inlet or outlet port tube shown in FIG. 1;

fig. 5 is a schematic structural diagram of the intelligent control system of the present invention;

FIG. 6 is a schematic structural view of the culture water heat exchanger shown in FIG. 1;

FIG. 7 is a schematic structural view of the partial cross-sectional view shown in FIG. 6;

FIG. 8 is a schematic structural view of the top view shown in FIG. 6;

FIG. 9 is a schematic structural view of the upper housing shown in FIG. 6;

FIG. 10 is a schematic structural view of the sectional view A-A shown in FIG. 9;

FIG. 11 is a schematic structural view of the center housing shown in FIG. 6;

FIG. 12 is a schematic structural view of the top view shown in FIG. 11;

FIG. 13 is a schematic structural view of the lower housing shown in FIG. 6;

fig. 14 is a structural view of a sectional view B-B shown in fig. 13.

The labels in the figure are: 1. the device comprises an outer shell, 2 heat exchange pipes, 3 an inner cavity of the outer shell, 4 water inlet pipes, 5 water outlet pipes, 6 sewage discharge pipes, 7 water inlet temperature sensors, 8 water outlet temperature sensors, 9 upper shells, 10 middle shells, 11 lower shells, 12 inner shells, 13 nuts, 14 gaskets, 15 supporting legs, 16 sewage discharge valves, 17 water flow switches, 18 compressors, 19 four-way valves, 20 four-way valves, 21 fans, 22 air heat exchangers, 23 expansion valves, 24 breeding water heat exchangers, 25 shells, 26 first connectors, 27 second connectors, 28 third connectors, 29 fourth connectors, 30 first inlet and outlet ends, 31 second inlet and outlet ends, 32 third inlet and outlet ends, 33 fourth inlet and outlet ends, 34 fifth inlet and outlet ends, 35 sixth inlet and outlet ends, 36 circulating water pumps, 37 filters, 38. the system comprises a culture pond, 39 parts of a water discharge pipe of the culture pond, 40 parts of a water inlet pipe of the culture pond, 41 parts of a water inlet hole pipe, 42 parts of a water outlet hole pipe, 43 parts of a water inlet hole, 44 parts of a water outlet hole, 45 parts of an alarm device, 46 parts of an intelligent control device and 47 parts of a sewage outlet.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

Example 1:

as shown in figure 1, the utility model provides an aquaculture temperature control system, which is provided with a compressor 18, a four-way valve 19, a gas-liquid separator 20, an air heat exchanger 22, an expansion valve 23, a culture water heat exchanger 24, a circulating water pump 36, a filter 37 and a culture pond 38. The compressor 18, the four-way valve 19, the gas-liquid separator 20, the fan 21, the air heat exchanger 22, the expansion valve 23, and the culture water heat exchanger 24 are generally disposed in the housing 25.

The compressor 18 is a driven fluid machine that raises low-pressure gas into high-pressure gas, and sucks low-temperature and low-pressure refrigerant gas from an intake pipe, compresses the refrigerant gas by driving a piston with the operation of a motor, and discharges high-temperature and high-pressure refrigerant gas to an exhaust pipe to provide power for a refrigeration cycle. The material of the exhaust pipe of the compressor 18 of the present invention is preferably red copper, and the refrigerant is preferably freon.

The four-way valve 19 is provided with a solenoid coil and is a control valve having four ports, wherein the four ports are a first port 26, a second port 27, a third port 28 and a fourth port 29.

The outlet end of the compressor 18 is communicated with the first connector 26, the second connector 27 is communicated with the inlet end of the gas-liquid separator 20, and the outlet end of the gas-liquid separator 20 is communicated with the inlet end of the compressor 18; the gas-liquid separator 20 is mainly used for gas-liquid separation, liquid removal and dust removal, and allows pure gas to enter the compressor 18. The third interface 28 is communicated with a first inlet and outlet end 30 of the air heat exchanger 22, a second inlet and outlet end 31 of the air heat exchanger 22 is communicated with a third inlet and outlet end 32 of the expansion valve 23, a fourth inlet and outlet end 33 of the expansion valve 23 is communicated with a fifth inlet and outlet end 34 of a heat exchange pipe of the culture water heat exchanger 24, and a sixth inlet and outlet end 35 of the heat exchange pipe of the culture water heat exchanger 24 is communicated with the fourth interface 29; the air heat exchanger 22 is provided with a fan 21, the fan 21 is used for blowing air to the outer wall of the air heat exchanger 22 and exchanging heat with the refrigerant in the air heat exchanger 22, and when the heat quantity of the air is higher than that of the refrigerant, the refrigerant absorbs the heat quantity of the air; when the heat of the air is lower than the heat of the refrigerant, the refrigerant releases heat to the air. The water inlet pipe 4 of the culture water heat exchanger 24 is communicated with the outlet of the circulating water pump 36; the inlet of the circulating water pump 36 is communicated with a filter 37, and the filter 37 is communicated with a water discharge pipe 39 of a culture pond 38; the water outlet pipe 5 of the culture water heat exchanger 24 is communicated with the water inlet pipe 40 of the culture pond 38. The circulating water pump 36 provides power for the operation of the culture water in the pipeline, and the filter 37 filters impurities in the culture water. The aquaculture water in the aquaculture pond 38 flows out of a water discharge pipe 39 of the aquaculture pond 38, passes through a filter 37 and a circulating water pump 36, enters the aquaculture water heat exchanger 24 from a water inlet pipe 4 of the aquaculture water heat exchanger 24, exchanges heat with refrigerant in a heat exchange pipe in the aquaculture water heat exchanger 24, flows out of a water outlet pipe 5 of the aquaculture water heat exchanger 24, then enters the aquaculture pond 38 through a water inlet pipe 40 of the aquaculture pond 38, and completes a water circulation heat exchange process for aquaculture. The water circulation heat exchange process for cultivation is repeated under the action of the water circulation pump 36, and the requirements of the growth and propagation temperature and the clean water resource required by the aquatic products in the cultivation pond 38 are met.

As a further preferred embodiment, as shown in fig. 1 and 4, the utility model is further provided with a water inlet pipe 41 and a water outlet pipe 42, wherein the water inlet pipe 41 and the water outlet pipe 42 are both disposed in the culture pond 38; in use, the outlet pipe 42 is immersed in the culture water, and usually the inlet pipe 41 is also immersed in the culture water. The water inlet hole pipe 41 and the water outlet hole pipe 42 are both of tubular structures, a water inlet hole 43 is arranged on the pipe wall of the water inlet hole pipe 41 in a penetrating manner, a water outlet hole 44 is arranged on the pipe wall of the water outlet hole pipe 42 in a penetrating manner, the water inlet hole pipe 41 is communicated with the water inlet pipe 40 of the culture pond 38, and culture water which completes heat exchange enters the water inlet hole pipe 41 through the water inlet pipe 40 of the culture pond 38 and then enters the culture pond 38 from the water inlet hole 43 of the water inlet hole pipe 41; the outlet pipe 42 is communicated with the water outlet pipe 39 of the culture pond 38, and the culture water in the culture pond 38 enters the inlet pipe 41 through the water outlet hole 44 and then is discharged from the water outlet pipe 39 of the culture pond 38 for heat exchange. Usually, the inlet pipe 41 and the outlet pipe 42 are made of PVC, and the diameters of the inlet 43 and the outlet 44 are smaller than the diameter of the cultured organisms or the suspended fillers in the culture pond 38, so as to prevent the cultured organisms or the suspended fillers from entering the inlet pipe 41 and the outlet pipe 42 and blocking the pipeline.

As a further preferred embodiment, as shown in fig. 1 and 5, the present invention further includes an intelligent control system, a water flow switch 17, and an alarm device 45. The intelligent control system is provided with an intelligent control device 46, typically the intelligent control device 46 is a PLC, i.e. a programmable logic controller. The water flow switch 17 is arranged in the water outlet pipe 5 of the culture water heat exchanger 24; the rivers switch 17 is equipped with reset spring, and rivers switch 17 is the device of selling, sets up rivers switch 17 on breeding water heat exchanger 24's outlet pipe 5 for convert the rivers in outlet pipe 5 into the sensing device of the on-off signal of telecommunication, trigger output alarm signal when the rivers volume is higher than or is less than a certain set point and give intelligent control device 46, can make corresponding instruction action after intelligent control device 46 acquires the signal, avoid or reduce the utility model discloses breed water heat exchanger 24 "dry combustion method". The alarm device 45 is a commercially available device, and an audible and visual alarm is generally used. The intelligent control device 46 is respectively connected with the water flow switch 17, the circulating water pump 36 and the alarm device 45 through control circuits; when the water flow switch 17 senses that the flow of the aquaculture water flowing out of the water outlet pipe 5 is lower than the set flow, the water flow switch 17 transmits a sensing signal to the intelligent control device 46 through the control circuit, the intelligent control device 46 sends an instruction to the motor and the alarm of the circulating water pump 36 through the control circuit after receiving the signal, the motor of the circulating water pump 36 accelerates to rotate after receiving the instruction, the supply in unit time is increased, the utility model discloses the aquaculture water supply of the aquaculture water heat exchanger 24, and the alarm device 45 sends an alarm after receiving the instruction to remind farmers; after water flow switch 17 senses and reaches the settlement flow, water flow switch 17 automatic re-setting to through control circuit to intelligent control device 46 conveying sensing signal, after intelligent control device 46 received sensing signal, respectively through control circuit to circulating water pump 36's motor and alarm device 45 send out the instruction, circulating water pump 36's motor keeps the rotational speed unchangeable after receiving the instruction, keeps supplying with in the unit interval the utility model discloses breed water heat exchanger 24's breed water supply volume, alarm device 45 stops the warning after receiving the instruction.

Or, the intelligent control device 46 is respectively connected with the compressor 18, the fan 21 and the water flow switch 17 through control lines, when the water flow switch 17 senses that the flow of the aquaculture water flowing out of the water outlet pipe 5 is lower than a set flow, the water flow switch 17 sends a signal to the intelligent control device 46 through a control line, after receiving the signal, the intelligent control device 46 respectively sends an instruction to the compressor 18 and the fan 21 through the control line, and after receiving the instruction, the compressor 18 and the fan 21 both stop working, so that the compressor 18 and the air heat exchanger 22 are ensured not to be damaged.

As a preferred embodiment, as shown in fig. 5, the utility model is further provided with an inlet water temperature sensor 7, an outlet water temperature sensor 8 and a compressor 18, wherein the inlet water temperature sensor 7 is arranged in the inlet water pipe 4 of the culture water heat exchanger 24 and is used for measuring the temperature of the culture water flowing into the culture water heat exchanger 24; the water outlet temperature sensor 8 is arranged in the water outlet pipe 5 of the culture water heat exchanger 24 and is used for measuring the temperature of the culture water flowing out of the culture water heat exchanger 24. The intelligent control device 46 is respectively connected with the water inlet temperature sensor 7, the water outlet temperature sensor 8, the circulating water pump 36, the compressor 18 and the alarm device 45 through control lines, when the water inlet temperature sensor 7 or the water outlet temperature sensor 8 senses that the temperature of the aquaculture water at the position exceeds a set temperature range, a sensing signal is transmitted to the intelligent control device 46 through the control lines, the intelligent control device 46 sends an instruction to the alarm device 45 through the control lines after receiving the signal, and the alarm device 45 gives an alarm after receiving the instruction to remind farmers.

When the first connector 26 of the four-way valve 19 is communicated with the fourth connector 29 and the third connector 28 is communicated with the second connector 27, the high-temperature and high-pressure gas generated by the compressor 18 directly enters the heat exchange tube in the aquaculture water heat exchanger 24 through the four-way valve 19 to release heat to the aquaculture water. When the outlet water temperature sensor 8 senses that the temperature of the aquaculture water at the position of the outlet water temperature sensor exceeds the maximum temperature of the set temperature, the outlet water temperature sensor 8 transmits a sensing signal to the intelligent control device 46 through a control line, the intelligent control device 46 sends instructions to the motor of the circulating water pump 36 and the motor of the compressor 18 through control lines after receiving the sensing signal, and the motor of the circulating water pump 36 operates in an accelerated manner after receiving the instructions, so that the time of the aquaculture water in the aquaculture water heat exchanger 24 is shortened, and heat absorption is reduced; the motor of the compressor 18 operates at a reduced speed after receiving the instruction, and reduces the heat exchange efficiency of the refrigerant in the culture water heat exchanger 24, thereby reducing the temperature of the culture water flowing out of the culture water heat exchanger 24. When the outlet water temperature sensor 8 senses that the temperature of the aquaculture water at the position of the outlet water temperature sensor is lower than the lowest temperature of the set temperature, the outlet water temperature sensor 8 transmits a sensing signal to the intelligent control device 46 through a control line, the intelligent control device 46 sends instructions to the motor of the circulating water pump 36 and the motor of the compressor 18 through control lines after receiving the sensing signal, the motor of the circulating water pump 36 operates in a speed reduction mode after receiving the instructions, the time of the aquaculture water in the aquaculture water heat exchanger 24 is prolonged, and heat absorption is increased; the motor of the compressor 18 operates at an accelerated speed after receiving the instruction, and the heat exchange efficiency of the refrigerant in the aquaculture water heat exchanger 24 is improved, so that the temperature of the aquaculture water flowing out of the aquaculture water heat exchanger 24 is improved. When the outlet water temperature sensor 8 senses that the temperature of the water for cultivation is in the set temperature range, the outlet water temperature sensor 8 transmits a sensing signal to the intelligent control device 46 through the control line, after receiving the sensing signal, the intelligent control device 46 sends instructions to the motor of the circulating water pump 36, the motor of the compressor 18 and the fan 21 of the air heat exchanger 22 through the control line respectively, and after receiving the instructions, the motor of the circulating water pump 36, the motor of the compressor 18 and the fan 21 of the air heat exchanger 22 stop operating.

When the first connector 26 and the third connector 28 of the four-way valve 19 are communicated and the fourth connector 29 of the four-way valve 19 is communicated with the second connector 27, namely, high-temperature and high-pressure gas generated by the compressor 18 is diverted by the four-way valve 19, is discharged heat by the air heat exchanger 22, is reduced in pressure by the expansion valve 23 to form low-temperature and low-pressure liquid, and then enters the heat exchange tube in the culture water heat exchanger 24 to absorb heat to the culture water. When the outlet water temperature sensor 8 senses that the temperature of the aquaculture water at the position of the outlet water temperature sensor exceeds the maximum temperature of the set temperature, the outlet water temperature sensor 8 transmits a sensing signal to the intelligent control device 46 through a control line, the intelligent control device 46 sends instructions to the motor of the circulating water pump 36 and the motor of the compressor 18 through the control line after receiving the sensing signal, the motor of the circulating water pump 36 operates in a speed reduction mode after receiving the instructions, the time of the aquaculture water in the aquaculture water heat exchanger 24 is prolonged, and heat release is increased; the motor of the compressor 18 operates at an accelerated speed after receiving the instruction, and the heat exchange efficiency of the refrigerant in the aquaculture water heat exchanger 24 is improved, so that the temperature of the aquaculture water flowing out of the aquaculture water heat exchanger 24 is reduced. When the outlet water temperature sensor 8 senses that the temperature of the aquaculture water at the position of the outlet water temperature sensor is lower than the lowest temperature of the set temperature, the outlet water temperature sensor 8 transmits a sensing signal to the intelligent control device 46 through a control line, the intelligent control device 46 sends instructions to the motor of the circulating water pump 36 and the motor of the compressor 18 through control lines after receiving the sensing signal, the motor of the circulating water pump 36 operates in an accelerated mode after receiving the instructions, the time of the aquaculture water in the aquaculture water heat exchanger 24 is shortened, and heat release is reduced; the motor of the compressor 18 operates in a decelerating manner after receiving the instruction, so that the heat exchange efficiency of the refrigerant in the aquaculture water heat exchanger 24 is reduced, and the temperature of the aquaculture water flowing out of the aquaculture water heat exchanger 24 is increased. When the outlet water temperature sensor 8 senses that the temperature of the water for cultivation is in the set temperature range, the outlet water temperature sensor 8 transmits a sensing signal to the intelligent control device 46 through the control line, after receiving the sensing signal, the intelligent control device 46 sends instructions to the motor of the circulating water pump 36, the motor of the compressor 18 and the fan 21 of the air heat exchanger 22 through the control line respectively, and after receiving the instructions, the motor of the circulating water pump 36, the motor of the compressor 18 and the fan 21 of the air heat exchanger 22 stop operating.

The motor of the circulating water pump 36 and the motor of the compressor 18 are preferably electromagnetic speed-regulating motors.

In addition, the intelligent control system may further include a keyboard module, the keyboard module is connected to the intelligent control device 46 through a control line, the main component of the keyboard module is a keyboard, the intelligent control device 46 is programmed through the keyboard, and a flow value and a temperature value range are set. The intelligent control system is also provided with a power supply module, the power supply module is connected with components needing power supply operation, such as a compressor 18, a four-way valve 19, a fan 21, an air heat exchanger 22, an expansion valve 23, a water flow switch 17, a circulating water pump 36, an intelligent control device 46, a circulating water pump 36, an inlet water temperature sensor 7, an outlet water temperature sensor 8, an alarm device 45, a keyboard module and the like through control lines, and the power supply module is mainly used for supplying power.

The utility model discloses a theory of operation does: the utility model provides an aquaculture temperature control system, which adopts air as a heat exchange source and applies the inverse Carnot principle, and high-temperature and high-pressure gas generated by a compressor 18 directly enters a heat exchange tube in a culture water heat exchanger 24 through a four-way valve 19 to release heat to culture water so as to improve the temperature of culture water in a culture pond 38; high-temperature and high-pressure gas generated by the compressor 18 is diverted by the four-way valve 19, is discharged heat by the air heat exchanger 22, is reduced in pressure by the expansion valve 23 to form low-temperature and low-pressure liquid, and then enters the heat exchange pipe in the culture water heat exchanger 24 to absorb heat to culture water, so that the temperature of the culture water in the culture pond 38 is reduced. The specific processes are respectively as follows:

as shown in fig. 2, the compressor 18 discharges high-temperature and high-pressure refrigerant gas, preferably freon, from the outlet end of the compressor 18 to the first port 26 through a pipeline, the refrigerant gas passes through the first port 26 and the fourth port 29 in sequence, enters the heat exchange pipe in the culture water heat exchanger 24 from the sixth outlet/inlet end 35 of the heat exchange pipe of the culture water heat exchanger 24 through a pipeline to complete the heat release process, then flows out from the fifth outlet/inlet end 34 of the heat exchange pipe of the culture water heat exchanger 24, enters the expansion valve 23 from the fourth outlet/inlet end 33 of the expansion valve 23 through a pipeline, is depressurized into low-temperature and low-pressure liquid through the expansion valve 23, and flows out from the third outlet/inlet end 32 of the expansion valve 23 and enters the air heat exchanger 22 from the second outlet/inlet end 31 of the air heat exchanger 22 through a pipeline, the air heat exchanger 22 absorbs heat and then turns into a gas-liquid mixed state, the air heat exchanger 22 discharges a gas-liquid mixed refrigerant from a first inlet and outlet end 30 of the air heat exchanger 22 to a third interface 28 through a pipeline, at the moment, the third interface 28 of the four-way valve 19 is communicated with a second interface 27, the gas-liquid mixed refrigerant sequentially passes through the third interface 28 and the second interface 27, enters the gas-liquid separator 20 from an inlet of the gas-liquid separator 20 through a pipeline, gas-liquid separation is completed in the gas-liquid separator 20, pure low-temperature low-pressure gas is discharged from an outlet end of the gas-liquid separator 20, and then enters the compressor 18 from an inlet end of the compressor 18 through a pipeline to complete a heat release process, the culture water in the culture water heat exchanger 24 absorbs heat released by the refrigerant to complete a temperature rise process, and further improve the temperature of the; the heat exchange process is circularly repeated.

As shown in fig. 3, the compressor 18 discharges high-temperature and high-pressure refrigerant gas from the outlet end of the compressor 18 to the first port 26 through a pipeline, at this time, the first port 26 and the third port 28 of the four-way valve 19 are communicated, the high-temperature and high-pressure refrigerant gas passes through the first port 26 and the third port 28 in sequence, enters the air heat exchanger 22 from the first inlet/outlet end 30 of the air heat exchanger 22 through a pipeline, releases heat in the air heat exchanger 22, enters the expansion valve 23 from the third inlet/outlet end 32 of the expansion valve 23 through a pipeline, is depressurized into low-temperature and low-pressure liquid through the expansion valve 23, the low-temperature and low-pressure liquid flows out from the fourth inlet/outlet end 33 of the expansion valve 23, enters the heat exchange tube in the aquaculture water heat exchanger 24 from the fifth inlet/outlet end 34 of the aquaculture water heat exchanger 24 through a pipeline, forms a refrigerant in a gas-liquid mixture state, the water enters a fourth interface 29 through a pipeline, at the moment, the fourth interface 29 of the four-way valve 19 is communicated with a second interface 27, the refrigerant in a gas-liquid mixed state sequentially passes through the fourth interface 29 and the second interface 27, enters the gas-liquid separator 20 from the inlet of the gas-liquid separator 20 through the pipeline, gas-liquid separation is completed in the gas-liquid separator 20, pure low-temperature and low-pressure gas is discharged from the outlet end of the gas-liquid separator 20 and then enters the compressor 18 from the inlet end of the compressor 18 through the pipeline, a heat absorption process is completed, the culture water in the culture water heat exchanger 24 releases heat to the refrigerant to complete a temperature reduction process, and the temperature of the culture water in the culture pond 38 is reduced; the heat exchange process is circularly repeated.

Example 2:

as shown in fig. 1 and fig. 6 to 8, the utility model provides an aquaculture temperature control system, wherein, on the basis of the technical scheme of the embodiment 1, the aquaculture water heat exchanger 24 can be a commercially available device or a cyclone heat exchanger with the following structure, and is provided with an outer shell 1 and a heat exchange tube 2; the shell body 1 is vertical tank-shaped structure, is equipped with shell body inner chamber 3 in the shell body 1, and shell body 1 connects respectively outward and is equipped with oral siphon 4, outlet pipe 5 and blow off pipe 6 that are linked together with shell body inner chamber 3, and oral siphon 4 gets into shell body inner chamber 3's passageway as the breed water, and outlet pipe 5 is as the passageway that the breed water flows out shell body inner chamber 3, and blow off pipe 6 is as the passageway that shell body inner chamber 3 discharged and contain solid impurity sewage. The heat exchange tube 2 is arranged in the inner cavity 3 of the outer shell, a fifth inlet and outlet end 34 and a sixth inlet and outlet end 35 of the heat exchange tube 2 respectively penetrate through the outer shell 1 and extend out, a medium for heat exchange enters from the fifth inlet and outlet end 34 of the heat exchange tube 2, exchanges heat with the culture water in the inner cavity 3 of the outer shell and then flows out from the sixth inlet and outlet end 35, or flows in from the sixth inlet and outlet end 35 of the heat exchange tube 2 and exchanges heat with the culture water in the inner cavity 3 of the outer shell and then flows out from the fifth inlet and outlet end 34, so that the temperature rise or the temperature drop of the culture water in the inner cavity; the medium is preferably freon, and is selected according to actual requirements. The water inlet pipe 4 is connected and arranged at the bottom of the side wall of the outer shell 1, and the water inlet pipe 4 is arranged along the tangential direction of the inner wall of the inner cavity 3 of the outer shell (as shown in fig. 10). The water outlet pipe 5 is connected and arranged on the top of the side wall of the outer shell 1, and the water outlet pipe 5 is arranged along the tangential direction of the inner wall of the inner cavity 3 of the outer shell, so that water is discharged along the tangential direction of the inner wall of the inner cavity 3 of the outer shell (as shown in fig. 14). The water inlet pipe 4 and the water outlet pipe 5 are arranged along the tangential direction of the inner wall of the inner cavity 3 of the outer shell, on one hand, the whole process from the feeding of the culture water into the inner cavity 3 of the outer shell to the discharging of the culture water out of the inner cavity 3 of the outer shell is always in a rotational flow ascending state along the inner wall of the inner cavity 3 of the outer shell, and in the process of the rotational flow ascending, the heat exchange is continuously carried out with the heat exchange pipe 2 in contact with; on the other hand, the resistance is small, so that the aquaculture water which completes heat exchange in the inner cavity 3 of the outer shell can flow out of the water outlet pipe 5 in time, the untreated aquaculture water can be supplemented from the water inlet pipe 4 into the inner cavity 3 of the outer shell for heat exchange in time, the phenomenon that the aquaculture water which completes heat exchange is mixed with the aquaculture water which does not complete heat exchange due to local blockage is avoided, and the heat exchange efficiency is improved; thirdly, the density of the solid impurities in the water for cultivation is greater than that of the water for cultivation, the solid impurities can flow towards the inner wall side of the inner cavity 3 of the outer shell body relative to the water for cultivation in the rotational flow process, and the solid impurities close to the inner wall of the inner cavity 3 of the outer shell body are precipitated under the action of self gravity and rotational flow. The bottom of the inner cavity 3 of the outer shell is of an inverted cone structure, and a drain pipe 6 is connected and arranged at the cone bottom (namely the lowest end of the cone slope bottom). Solid impurities in the water body for cultivation in the inner cavity 3 of the outer shell are precipitated at the bottom of the conical slope base in a rotational flow mode under the action of gravity and finally discharged from the sewage discharge pipe 6, and the solid impurities are prevented from being continuously hung on the wall of the heat exchange pipe 2 to block heat exchange.

As a preferable embodiment, as shown in fig. 6 and 7, the outer case 1 is provided with an upper case 9, a middle case 10, and a lower case 11; as shown in fig. 9 and 10, the upper case 9 has a dome-shaped structure; as shown in fig. 11 and 12, the middle case 10 has a cylindrical structure; as shown in fig. 13 and 14, the lower housing 11 is a funnel structure, and a drain outlet 47 which can be communicated with the drain pipe 6 is arranged at the bottom of the lower housing. As shown in fig. 6 and 7, the upper casing 9, the middle casing 10 and the lower casing 11 are sequentially and hermetically connected from top to bottom to form a vertical pot-shaped structure, so that the inner cavity of the upper casing 9, the inner cavity of the middle casing 10 and the inner cavity of the lower casing 11 jointly enclose the outer casing inner cavity 3; normally, the upper shell 9 and the middle shell 10, and the middle shell 10 and the lower shell 11 are connected by glue or flanges, so as to prevent water leakage. As shown in fig. 2 and 5, the upper housing 9 is communicated with the water outlet pipe 5, and the water outlet pipe 5 is arranged tangentially along the circumference of the inner wall of the upper housing 9, so as to realize water outlet along the tangential direction of the inner wall of the upper housing 9, and the working mechanism of the tangential arrangement is stated in detail in the above natural paragraph, and will not be described again here. As shown in fig. 7 and 14, the lower shell 11 is communicated with the water inlet pipe 4, and the water inlet pipe 4 is arranged along the tangential direction of the inner wall circumference of the lower shell 11, and the working mechanism of the tangential arrangement is described in detail in the above natural paragraph, and will not be described again. The outer shell 1 is provided with the upper shell 9, the middle shell 10 and the lower shell 11, the structure is simple, all the components can be prefabricated in a factory, the modularized combination can be completed on site, the construction is convenient and fast, and the period is short; the combined type combined module can be integrally moved as required after being built, after all parts are disassembled on an old site, the combined module is conveyed to a new site to be re-assembled in a modularized mode, the combined module is assembled when the components are disassembled, the moving and the rebuilding are convenient and fast, the period is short, and the cost is low.

As a preferred embodiment, as shown in fig. 7, the present invention further comprises an inner shell 12, wherein the inner shell 12 is a cylindrical structure, the inner shell 12 is longitudinally arranged in the inner cavity 3 of the outer shell, and the upper part of the inner shell 12 is connected with the upper shell 9; the heat exchange tube 2 is spirally wound on the outer wall of the inner shell 12 in a layered manner, so that the contact area of the heat exchange tube 2 and the culture water in the inner cavity 3 of the outer shell is increased, and the heat exchange efficiency is improved; the heat exchange tube 2 is a three-layer twist structure which is formed by winding a compact disc in a rotating way, and the inner layer, the middle layer and the outer layer are closely arranged together; typically the inner housing 12 is arranged between the inlet pipe 4 and the outlet pipe 5. As a further preference, the material of the outer housing 1 and the inner housing 12 is one of PVC, PP, PE or engineering plastic, respectively. When the water for aquaculture is seawater, the seawater contains halide ions, and has corrosivity to the outer shell 1 and the inner shell 12 which are made of metals such as copper, iron, steel, stainless steel and the like, a certain amount of salt is usually added in the freshwater aquaculture process to adjust the water quality, and the outer shell 1 and the inner shell 12 are made of plastics, so that the halide ions in the water for aquaculture can be prevented from being corroded.

Preferably, as shown in fig. 7, the fifth inlet and outlet end 34 of the heat exchange tube 2 and the sixth inlet and outlet end 35 of the heat exchange tube 2 are both tightly fixed on the upper shell 9 by using a nut 13 and a gasket 14, so that the fifth inlet and outlet end 34 of the heat exchange tube 2 and the sixth inlet and outlet end 35 of the heat exchange tube 2 are more firmly fixed on the upper shell 9.

Preferably, the heat exchange tube 2 is a titanium tube. When the water for aquaculture is seawater, the seawater contains halide ions, so that the heat exchange tubes 2 made of metals such as copper, iron, steel, stainless steel and the like are corrosive, a certain amount of salt is usually added in the freshwater aquaculture process to adjust the water quality, and the heat exchange tubes 2 are titanium tubes, so that the halide ions in the water for aquaculture can be prevented from being corroded on the basis of ensuring the heat exchange efficiency. The medium flowing in the titanium pipe is preferably Freon which is a transparent, tasteless, low-toxicity, nonflammable, explosive and chemically stable refrigerant and can be used for reducing the temperature of water for cultivation by heat transfer.

As the preferred of embodiment, by shown in fig. 6, 7, the utility model discloses still be equipped with landing leg 15, landing leg 15 is connected with shell body 1, and landing leg 15 can regard as shell body 1's support for support shell body 1, avoid shell body 1 unexpected suffer outside to collide with and damage.

As shown in fig. 6 and 7, the drainage pipe 6 is preferably provided with a drainage valve 16 in communication, and the drainage valve 16 can be opened periodically to drain impurities deposited in the tapered slope bottom for convenient management.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "first", "second", "third", "fourth" and "fifth", etc. do not denote an absolute structural and/or functional relationship, or an order of execution, but rather are used merely for convenience of description.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims (9)

1. An aquaculture temperature control system is characterized by comprising a compressor, a four-way valve, a gas-liquid separator, an air heat exchanger, an expansion valve, a culture water heat exchanger, a circulating water pump, a filter and a culture pond; the four-way valve is provided with a first interface, a second interface, a third interface and a fourth interface; the outlet end of the compressor is communicated with the first connector, the second connector is communicated with the inlet end of the gas-liquid separator, and the outlet end of the gas-liquid separator is communicated with the inlet end of the compressor; the third interface is communicated with a first inlet and outlet end of the air heat exchanger, a second inlet and outlet end of the air heat exchanger is communicated with a third inlet and outlet end of the expansion valve, a fourth inlet and outlet end of the expansion valve is communicated with a fifth inlet and outlet end of a heat exchange tube of the culture water heat exchanger, and a sixth inlet and outlet end of the heat exchange tube of the culture water heat exchanger is communicated with the fourth interface; the water inlet pipe of the culture water heat exchanger is communicated with the outlet of the circulating water pump; the inlet of the circulating water pump is communicated with the filter, and the filter is communicated with a water discharge pipe of the culture pond; and the water outlet pipe of the culture water heat exchanger is communicated with the water inlet pipe of the culture pond.

2. The aquaculture temperature control system of claim 1 further comprising a water inlet port tube and a water outlet port tube, said water inlet port tube and said water outlet port tube being disposed within said aquaculture pond; the water inlet hole pipe and the water outlet hole pipe are both of tubular structures, a water inlet hole penetrates through the pipe wall of the water inlet hole pipe, and a water outlet hole penetrates through the pipe wall of the water outlet hole pipe; the water inlet hole pipe is communicated with the water inlet pipe of the culture pond, and the water outlet hole pipe is communicated with the water discharge pipe of the culture pond.

3. The aquaculture temperature control system of claim 1, further comprising an intelligent control system, a water flow switch, and an alarm device; the intelligent control system is provided with an intelligent control device, and the water flow switch is arranged in a water outlet pipe of the culture water heat exchanger; the intelligent control device is respectively connected with the water flow switch, the circulating water pump and the alarm device through control lines.

4. The aquaculture temperature control system according to claim 3, further comprising an inlet temperature sensor and an outlet temperature sensor, wherein the inlet temperature sensor is disposed in the inlet pipe of the aquaculture water heat exchanger, and the outlet temperature sensor is disposed in the inlet pipe of the aquaculture water heat exchanger; the intelligent control device is respectively connected with the water inlet temperature sensor, the water outlet temperature sensor and the compressor through control lines.

5. An aquaculture temperature control system according to claim 1 wherein said aquaculture water heat exchanger is provided with an outer shell and said heat exchange tubes; the outer shell is of a vertical tank-shaped structure, an inner cavity of the outer shell is arranged in the outer shell, and the outer shell is respectively connected and provided with the water inlet pipe, the water outlet pipe and the sewage discharge pipe which are communicated with the inner cavity of the outer shell; the heat exchange tube is arranged in the inner cavity of the outer shell, and the fifth inlet and outlet end and the sixth inlet and outlet end of the heat exchange tube respectively penetrate through the outer shell and extend out; the water inlet pipe is connected and arranged at the bottom of the side wall of the outer shell, and the water inlet pipe is arranged along the tangential direction of the inner wall of the inner cavity of the outer shell; the water outlet pipe is connected and arranged at the top of the side wall of the outer shell, and the water outlet pipe is arranged along the tangential direction of the inner wall of the inner cavity of the outer shell, so that water is discharged along the tangential direction of the inner wall of the inner cavity of the outer shell; the bottom of the inner cavity of the outer shell is of an inverted cone structure, and the blow-off pipe is connected and arranged at the cone bottom of the outer shell.

6. An aquaculture temperature control system according to claim 5 wherein said outer housing has an upper housing, a middle housing and a lower housing; the upper shell is of a round cap-shaped structure, the middle shell is of a cylindrical structure, and the lower shell is of a funnel structure; the upper shell, the middle shell and the lower shell are sequentially connected in a sealing manner from top to bottom to form the vertical tank-shaped structure, and the inner walls of the upper shell, the middle shell and the lower shell enclose the inner cavity of the outer shell; the upper shell is communicated with the water outlet pipe, and the water outlet pipe is arranged along the tangential direction of the circumference of the inner wall of the upper shell, so that water is discharged along the tangential direction of the inner wall of the upper shell; the lower shell is communicated with the water inlet pipe, and the water inlet pipe is arranged along the tangential direction of the circumference of the inner wall of the lower shell.

7. An aquaculture temperature control system according to claim 5 or 6, further comprising an inner housing, wherein said inner housing is of a cylindrical structure and is longitudinally disposed in the inner cavity of said outer housing, and the upper portion of said inner housing is connected to said upper housing; the heat exchange tubes are wound on the outer wall of the inner shell in a layered and spiral mode.

8. An aquaculture temperature control system according to claim 7 wherein said outer housing and said inner housing are each made of one of PVC, PP, PE or engineering plastic.

9. An aquaculture temperature control system according to claim 5 wherein said heat exchange tubes are titanium tubes.

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