CN217209914U - Electronic temperature control device - Google Patents

Abstract

The application relates to an electronic temperature control device in the technical field of refrigeration and heating, which includes a first heat exchanger and an electronic refrigeration and heating group; wherein, the electronic refrigeration and heating group includes a heat exchanger and a heat exchanger provided on one side of the heat exchanger. Semiconductor refrigeration sheet, the heat exchanger is close to one side of the semiconductor refrigeration sheet; the water inlet of the heat exchanger is connected to the water outlet of the first heat exchanger, and the water outlet of the heat exchanger is connected to the first heat exchanger The water inlet is connected to the water inlet of the heat exchanger, and a first heat exchanger is connected to the pipe between the water inlet of the heat exchanger and the water outlet of the first heat exchanger and/or on the pipe between the water outlet of the heat exchanger and the water inlet of the first heat exchanger. Circulating pump. The present application reduces the generation of noise and improves the comfort of the staff when using the environmental test equipment.

Description

Electronic temperature control device

technical field

The present application relates to the technical field of refrigeration and heating, and in particular, to an electronic temperature control device.

Background technique

Environmental test equipment is a general term for all test chambers that simulate natural climate environment, including high and low temperature test chambers, constant temperature and humidity test chambers, ovens, etc. At present, most of the current environmental test equipment adopts compression refrigeration. Due to the existence of friction between components, It is easy to generate large noise during operation, which not only reduces the service life and maintenance cost of the environmental test equipment, but also easily affects the physical and mental health of the staff.

Utility model content

In order to reduce the generation of noise and improve the comfort of staff when using the environmental test equipment, the present application provides an electronic temperature control device.

An electronic temperature control device provided by the application adopts the following technical solutions:

An electronic temperature control device includes a first heat exchanger and an electronic refrigeration and heating group; wherein, the electronic refrigeration and heating group includes a heat exchanger and a semiconductor refrigerating sheet arranged on one side of the heat exchanger, the heat exchanger and the One side of the semiconductor refrigerating sheet is close; the water inlet of the heat exchanger is connected to the water outlet of the first heat exchanger, the water outlet of the heat exchanger is connected to the water inlet of the first heat exchanger, and the water inlet of the heat exchanger is connected to the water inlet of the first heat exchanger. A first circulating water pump is connected to the pipeline between the water outlet and the water outlet of the first heat exchanger and/or to the pipeline between the water outlet of the heat exchanger and the water inlet of the first heat exchanger.

By adopting the above technical solution, when it is necessary to adjust the temperature in the cabin, the staff can turn on the remote control switch between the first circulating water pump, the semiconductor refrigeration chip and the power supply, and the circulating pipe between the heat exchanger and the first heat exchanger can The circulating water in the road will continue to flow from the water outlet of the heat exchanger to the water inlet of the first heat exchanger. One side is released to adjust the temperature of the circulating water flowing through the heat exchanger. At the same time, the first heat exchanger will adjust the temperature in the cabin, and finally achieve the purpose of cooling the space in the cabin, thus avoiding the use of compression refrigeration. The temperature in the cabin is controlled by the method, which reduces the generation of noise and improves the comfort of the staff when using the environmental test equipment.

Optionally, the electronic cooling and heating group further includes a heat conductor, and the heat conductor is close to the side of the semiconductor refrigeration sheet away from the heat exchanger; the electronic temperature control device further includes a second heat exchanger, and the heat conductor is The water inlet of the heat exchanger is connected to the water outlet of the second heat exchanger, the water outlet of the heat exchanger is connected to the water inlet of the second heat exchanger, and the pipeline between the water inlet of the heat exchanger and the water outlet of the second heat exchanger A second circulating water pump is connected on and/or on the pipe between the water outlet of the heat exchanger and the water inlet of the second heat exchanger.

By adopting the above technical solution, the second circulating water pump makes the circulating water in the circulating pipeline between the heat exchanger and the second heat exchanger continuously flow in the direction of the water inlet of the heat exchanger from the water outlet of the second heat exchanger to conduct heat. The circulating water in the device will continuously absorb the heat released by the semiconductor refrigeration sheet or compensate for the required heat, thereby improving the effect of the semiconductor refrigeration sheet on the heat exchanger.

Optionally, the pipeline between the heat exchanger and the second heat exchanger is provided with a second water replenishment balance device for replenishing water and cooling the corresponding circulation pipeline.

By adopting the above technical solution, the setting of the second water replenishment balance device keeps the circulating water in the circulation pipeline between the heat exchanger and the second heat exchanger always within the set range, which ensures the stable operation of the device.

Optionally, the pipeline between the heat exchanger and the first heat exchanger is provided with a first water supply balance device for supplying water to the corresponding circulation pipeline and balancing the pressure of the pipeline.

By adopting the above technical solution, the arrangement of the first water replenishment balance device realizes the replenishment of the circulating water in the circulation pipeline between the heat exchanger and the first heat exchanger and the balance of the corresponding pipe pressure, and at the same time forms an open water circulation system, reducing production costs and maintenance costs.

Optionally, a cabin circulation fan for accelerating air flow around the first heat exchanger is installed on one side of the first heat exchanger.

By adopting the above technical solution, the cabin circulating fan twitches the air at the first heat exchanger into the cabin, thereby improving the flow efficiency of the gas in the cabin and making the temperature control of each area in the cabin more uniform and efficient.

Optionally, the electronic temperature control device further includes a controller, and a circulating water temperature sensor for monitoring the outlet water temperature of the heat exchanger, and a heat dissipation device for monitoring the inlet water temperature of the heat exchanger, which are signally connected to the controller. A water temperature sensor, a cabin temperature sensor for monitoring the temperature inside the cabin, and an ambient temperature sensor for monitoring the ambient temperature outside the cabin; and the controller is electrically connected to the first circulating water pump and the second circulating water pump connect.

By adopting the above technical solutions, when using the environmental test equipment, the controller will receive the temperature values detected by the circulating water temperature sensor, the cooling water temperature sensor, the cabin temperature sensor and the ambient temperature sensor, according to the actual temperature required by the cabin. , the controller automatically controls and adjusts the operating power of the first circulating water pump and the second circulating water pump, so as to achieve the effect of energy saving.

Optionally, there are multiple heat exchangers, one semiconductor refrigerating sheet is provided on opposite sides of each heat exchanger, and two semiconductor refrigerating fins on the same heat exchanger are provided for the heat conductor. There are one on opposite sides of the sheet, the water inlets of all heat exchangers are gathered together and connected with the water outlet of the first heat exchanger, and the water outlets of all heat exchangers are gathered together and connected with the first heat exchanger. The water inlets of all heat exchangers are gathered together and connected with the water outlet of the second heat exchanger, and the water outlets of all the heat exchangers are gathered together and connected with the water inlet of the second heat exchanger.

Optionally, the controller is electrically connected to a remote control switch between each semiconductor refrigeration chip and a power source.

By adopting the above technical solutions, when using the environmental test equipment, the controller will receive the temperature values detected by the circulating water temperature sensor, the cooling water temperature sensor, the cabin temperature sensor and the ambient temperature sensor, according to the actual temperature required by the cabin. , the controller will automatically control and adjust the forward energization, reverse energization or closing of the remote control switch to control the number of semiconductor refrigeration chips to start, so as to further achieve the effect of energy saving.

Optionally, the channels through which the water supply passes in the heat exchanger and the heat conductor are all arranged in a serpentine shape.

By adopting the above technical solution, the channels through which the water supply passes in the heat exchanger and the heat conductor are arranged in a serpentine arrangement, which increases the water travel and heat exchange time.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. Improve the comfort of the staff when using the environmental test equipment. By turning on the first circulating water pump and the remote control switch between the semiconductor refrigeration chip and the power supply, the circulating pipeline between the heat exchanger and the first heat exchanger will be closed. The circulating water will continue to flow from the water outlet of the heat exchanger to the water inlet of the first heat exchanger, and the semiconductor refrigeration sheet will absorb the heat on one side of the heat exchanger and release it from the other side of the semiconductor refrigeration sheet. , so as to adjust the temperature of the circulating water flowing through the heat exchanger, and at the same time, the first heat exchanger will adjust the temperature in the cabin, and finally achieve the purpose of cooling the space in the cabin, thus avoiding the use of compression refrigeration. The temperature in the cabin is controlled to reduce noise;

2. Improve the efficiency of energy utilization. When using the environmental test equipment, the controller will receive the temperature values detected by the circulating water temperature sensor, the cooling water temperature sensor, the cabin temperature sensor and the ambient temperature sensor, according to the actual temperature of the cabin. When the temperature is required, the controller automatically controls and adjusts the operating power of the first circulating water pump and the second circulating water pump, and controls and adjusts the forward energization, reverse energization or closing of the remote control switch to control the number of semiconductor refrigeration chips to start, so as to achieve energy saving. Effect.

Description of drawings

1 is a schematic diagram of the overall structure of an electronic temperature control device according to an embodiment of the present application;

Fig. 2 is the structural schematic diagram that embodies the electronic refrigeration and heating group;

FIG. 3 is a schematic structural diagram embodying the first water replenishment balance device and the second water replenishment balance device.

Description of reference numerals: 1. cabin; 2. first heat exchanger; 21, cabin circulating fan; 22, first pipeline; 23, second pipeline; 24, first circulating water pump; 25, circulating water drain valve; 26, circulating water temperature sensor; 3, electronic refrigeration and heating group; 30, heat exchanger; 31, semiconductor refrigeration sheet; 32, heat conductor; 4, second heat exchanger; 41, third pipeline; 42, fourth pipeline; 43, second circulating water pump; 44, cooling water temperature sensor; 5, first water replenishment balance device; 51, expansion water tank; 52, overflow valve; 53, first connecting pipe; 54, second connecting pipe; 6 , The second water supply balance device; 61, the cooling water tank; 62, the cooling water tank drain valve.

Detailed ways

The present application will be further described in detail below in conjunction with accompanying drawings 1-3.

The embodiment of the present application discloses an electronic temperature control device. Referring to FIG. 1 , the electronic temperature control device includes a first heat exchanger 2 , an electronic cooling and heating group 3 and a second heat exchanger 4 arranged on one side of the cabin 1 . The first heat exchanger 2 is connected to the inner space of the cabin 1 . The first heat exchanger 2 and the second heat exchanger 4 are provided with a water inlet and a water outlet; the first heat exchanger 2 and the electronic refrigeration and heating group 3 A first water replenishment balance device 5 is arranged between them, and a second water supply balance device 6 is arranged between the second heat exchanger 4 and the electronic refrigeration and heating group 3; wherein, the first heat exchanger 2 and the second heat exchanger 4. A fin-type heat exchanger 30, a coil-type heat exchanger 30, etc. can be selected. Specifically, in the embodiment of the present application, the first heat exchanger 2 and the second heat exchanger 4 are both selected as fin-type heat exchangers. 30.

2, the electronic refrigeration and heating group 3 includes a heat exchanger 30, a semiconductor refrigeration sheet 31 and a heat conductor 32. The heat exchanger 30 and the heat conductor 32 are respectively provided with a water inlet and a water outlet, and the heat exchanger 30 and The channels through which the water supply communicated with the corresponding water inlet and outlet in the heat conductor 32 are all arranged in a serpentine shape; among them, the number of the heat exchangers 30 can be selected from one, two, three, etc. The specific use of environmental test equipment The cooling and heating effect of each heat exchanger 30 is actually selected. In the embodiment of the present application, the number of heat exchangers 30 is taken as an example, and there are two semiconductor cooling fins 31 on the opposite sides of each heat exchanger 30. One heat exchanger 32 is provided on each of the opposite sides of the two semiconductor refrigeration sheets 31 on the same heat exchanger 30 , and the opposite sides of the semiconductor refrigeration sheet 31 are respectively in contact with the heat exchanger 30 and the heat conductor 32 .

2 and 3, the water inlets of the two heat exchangers 30 are connected together and a first pipe 22 is connected with the water outlet of the first heat exchanger 2, and the water outlets of the two heat exchangers 30 are connected together. A second pipeline 23 is connected together and is connected with the water inlet of the first heat exchanger 2, and at least one of the first pipeline 22 or the second pipeline 23 is connected with a first circulating water pump 24. In this application In the embodiment, the first circulating water pump 24 is connected to the second pipeline 23 as an example; in addition, a circulating water drain valve 25 is connected at the low point of the second pipeline 23 to facilitate the exchange of the heat exchanger 30 and the first heat. The circulating water in the circulating pipeline between the devices 2 is discharged, and then the corresponding components are repaired and maintained.

When it is necessary to cool the space in the cabin 1, the staff can turn on the first circulating water pump 24 so that the circulating water in the circulating pipeline between the heat exchanger 30 and the first heat exchanger 2 is continuously pumped by the heat exchanger 30. The water outlet flows in the direction of the water inlet of the first heat exchanger 2, and the remote control switch between the semiconductor refrigeration sheet 31 and the power supply is turned on to make the semiconductor refrigeration sheet 31 energized, and the semiconductor refrigeration sheet 31 will energize the semiconductor refrigeration sheet 31 on the side of the heat exchanger 30. The heat is absorbed and released by the semiconductor refrigeration sheet 31 toward the side of the heat exchanger 32, thereby cooling the circulating water flowing through the heat exchanger 30, and the first heat exchanger 2 directly or indirectly cools the heat in the cabin 1 Absorb, and finally achieve the purpose of cooling the space in the cabin 1; Similarly, when the space in the cabin 1 needs to be heated, the staff only needs to reversely connect the remote control between the semiconductor refrigeration chip 31 and the power supply It is only necessary to switch the semiconductor refrigeration sheet 31 to the side of the heat exchanger 30 from the heat exchanger 32, thereby avoiding the use of compression refrigeration to control the temperature in the cabin 1, reducing the generation of noise and improving the staff. Comfort when using environmental test equipment.

2 and 3, the water inlets of the four heat exchangers 32 are connected together and a third pipe 41 is connected with the water outlet of the second heat exchanger 4, and the water outlets of the four heat exchangers 32 are connected together in the A fourth pipeline 42 is connected together with the water inlet of the second heat exchanger 4, and at least one of the third pipeline 41 or the fourth pipeline 42 is connected with a second circulating water pump 43. In the embodiment of the present application Taking the connection of the second circulating water pump 43 on the third pipeline 41 as an example; when the first circulating water pump 24 and the semiconductor refrigeration sheet 31 are turned on to control the temperature in the cabin 1, the staff can simultaneously turn on the second circulating water pump 43 to make The circulating water in the circulation pipeline between the heat exchanger 32 and the second heat exchanger 4 continues to flow in the direction of the water inlet of the heat exchanger 32 from the water outlet of the second heat exchanger 4, and the circulating water in the heat exchanger 32 will affect the flow of water in the heat exchanger 32. The semiconductor refrigerating sheet 31 emits heat to absorb or compensate for the heat required by the semiconductor refrigerating sheet 31, and then the second heat exchanger 4 releases the heat of the circulating water in the corresponding circulation pipeline or compensates for the required heat, thereby improving the semiconductor refrigeration. The effect of the sheet 31 on the heat exchanger 30 .

3 , the first water replenishment balance device 5 includes an expansion water tank 51, the expansion water tank 51 is connected to the second pipe 23 between the first circulating water pump 24 and the heat exchanger 30 through a first connecting pipe 53, and the expansion water tank 51 is connected to the second pipe 23 between the first circulating water pump 24 and the heat exchanger 30. The connection point of the first connection pipe 53 is located below the liquid level of the expansion water tank 51. The expansion water tank 51 is also connected with the first pipeline 22 through the second connection pipe 54. The connection point of the expansion water tank 51 and the second connection pipe 54 is located in the expansion water tank. 51 and the second connecting pipe 54 is connected with an overflow valve 52; when the first circulating water pump 24 is running, the water in the expansion tank 51 can enter the second pipe 23 through the first connecting pipe 53, and When the pipe pressure in the circulation pipeline between the heat exchanger 30 and the first heat exchanger 2 exceeds the set value due to the thermal expansion of the circulating water, the circulating water can automatically open the overflow valve 52 and enter the expansion pipe through the second connecting pipe 54. In the water tank 51, the supplement of the circulating water in the circulation pipeline between the heat exchanger 30 and the first heat exchanger 2 and the balance of the corresponding pipe pressure are realized, and an open water circulation system is formed at the same time, which reduces the production cost and maintenance cost. .

Referring to FIG. 3 , the second water supply balance device 6 includes a cooling water tank 61 , the cooling water tank 61 is connected to the third pipe 41 between the second circulating water pump 43 and the second heat exchanger 4 , and the heat sink 32 and the cooling water tank 61 are connected The third pipe 41 between the radiating water tank 61 extends below the liquid level of the cooling water tank 61; in addition, a cooling water tank drain valve 62 is connected at the low point of the cooling water tank 61, so as to facilitate the communication between the heat exchanger 32 and the second heat exchanger 4. The circulating water in the circulating pipeline is discharged, and then the corresponding components are repaired and maintained.

When the second circulating water pump 43 is running, the water in the heat-dissipating water tank 61 can be pumped into the circulating pipeline between the heat exchanger 32 and the second heat exchanger 4, and the circulating water finally passes through the second heat exchanger 4 and dissipates heat. The third pipe 41 between the water tanks 61 enters the cooling water tank 61, so that the circulating water in the circulation pipeline between the heat exchanger 32 and the second heat exchanger 4 is always kept within the set range; and the cooling water tank 61 can also be Cooperate with the second heat exchanger 4 to release the heat of the circulating water in the corresponding circulation pipeline or compensate the required heat, improve the work efficiency, and at the same time form an open water circulation system to reduce the production cost and maintenance cost.

Referring to FIG. 3 , a cabin circulating fan 21 is also installed between the cabin 1 and the first heat exchanger 2 to pump the air at the first heat exchanger 2 into the cabin 1 , thereby increasing the temperature in the cabin 1 . The flow efficiency of the gas improves the uniformity and efficiency of temperature control in each area of the cabin 1; similarly, a fan can also be installed at the second heat exchanger 4 to improve the relationship between the second heat exchanger 4 and the surrounding environment. Efficiency of energy exchange.

3, the electronic temperature control device further includes a controller, and a circulating water temperature sensor 26, a cooling water temperature sensor 44, a cabin temperature sensor and an ambient temperature sensor signally connected to the controller, wherein the circulating water temperature sensor 26 is installed The second pipeline 23 between the first circulating water pump 24 and the heat exchanger 30 is used to monitor the temperature of the water outlet from the heat exchanger 30, and the cooling water temperature sensor 44 is installed between the second circulating water pump 43 and the cooling water tank 61. The third pipe 41 between the two is used for monitoring the inlet water temperature of the heat conductor 32, the cabin temperature sensor is installed in the cabin 1 for monitoring the temperature in the cabin 1, and the ambient temperature sensor is installed in the environment The test equipment is located in the environment for monitoring the ambient temperature outside the cabin 1, and the controller is electrically connected to the first circulating water pump 24, the second circulating water pump 43, and the remote control switch between each semiconductor refrigeration sheet 31 and the power supply .

When using the environmental test equipment, the controller will receive the temperature values detected by the circulating water temperature sensor 26, the cooling water temperature sensor 44, the cabin temperature sensor and the ambient temperature sensor. According to the actual temperature required by the cabin 1, the controller will Automatically control and adjust the operating power of the first circulating water pump 24 and the second circulating water pump 43, and control and adjust the forward energization, reverse energization or closing of the remote control switch to control the startup number of the semiconductor refrigeration chips 31, so as to achieve the effect of energy saving.

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (9)

1. An electronic temperature control device is characterized by comprising a first heat exchanger (2) and an electronic refrigerating and heating group (3); the electronic refrigerating and heating unit (3) comprises a heat exchanger (30) and a semiconductor refrigerating sheet (31) arranged on one side of the heat exchanger (30), wherein the heat exchanger (30) is close to one side of the semiconductor refrigerating sheet (31);

the water inlet of the heat exchanger (30) is connected with the water outlet of the first heat exchanger (2), the water outlet of the heat exchanger (30) is connected with the water inlet of the first heat exchanger (2), and a first circulating water pump (24) is connected to a pipeline between the water inlet of the heat exchanger (30) and the water outlet of the first heat exchanger (2) and/or a pipeline between the water outlet of the heat exchanger (30) and the water inlet of the first heat exchanger (2).

2. Electronic temperature control device according to claim 1, wherein the electronic cooling and heating group (3) further comprises a heat conductor (32), the heat conductor (32) being close to the side of the semiconductor cooling plate (31) facing away from the heat exchanger (30); the electronic temperature control device further comprises a second heat exchanger (4), a water inlet of the heat conductor (32) is connected with a water outlet of the second heat exchanger (4), a water outlet of the heat conductor (32) is connected with a water inlet of the second heat exchanger (4), and a second circulating water pump (43) is connected to a pipeline between the water inlet of the heat conductor (32) and the water outlet of the second heat exchanger (4) and/or a pipeline between the water outlet of the heat conductor (32) and the water inlet of the second heat exchanger (4).

3. Electronic temperature control device according to claim 2, characterized in that a second water-replenishing balancing device (6) for replenishing and cooling the respective circulation line is provided on the conduit between the heat conductor (32) and the second heat exchanger (4).

4. Electronic temperature control device according to claim 1, characterized in that the conduit between the heat exchanger (30) and the first heat exchanger (2) is provided with a first water-replenishing balancing device (5) for replenishing water to the respective circulation conduit and balancing the conduit pressure.

5. Electronic temperature control device according to any of claims 1-4, characterized in that a cabin circulating fan (21) is arranged on one side of the first heat exchanger (2) for accelerating the air flow around the first heat exchanger (2).

6. The electronic temperature control device according to claim 2 or 3, further comprising a controller, and a circulating water temperature sensor (26) connected to the controller by signals for monitoring the temperature of the water outlet of the heat exchanger (30), a cooling water temperature sensor (44) for monitoring the temperature of the water inlet of the heat conductor (32), a cabin temperature sensor for monitoring the temperature inside the cabin (1), and an ambient temperature sensor for monitoring the ambient temperature outside the cabin (1); and the controller is electrically connected with the first circulating water pump (24) and the second circulating water pump (43).

7. The electronic temperature control device according to claim 6, wherein the heat exchanger (30) is provided with a plurality of heat exchangers (30), the semiconductor chilling plates (31) are respectively provided with one on two opposite sides of each heat exchanger (30), the heat conductor (32) is respectively provided with one on two opposite sides of two semiconductor chilling plates (31) on the same heat exchanger (30), water inlets of all the heat exchangers (30) are gathered together and connected with a water outlet of the first heat exchanger (2), water outlets of all the heat exchangers (30) are gathered together and connected with a water inlet of the first heat exchanger (2), water inlets of all the heat conductors (32) are gathered together and connected with a water outlet of the second heat exchanger (4), and water outlets of all the heat conductors (32) are gathered together and connected with a water inlet of the second heat exchanger (4).

8. Electronic temperature control device according to claim 7, characterized in that the controller is electrically connected to a remote control switch between each semiconductor chilling plate (31) and the power supply.

9. Electronic temperature control device according to claim 6, wherein the channels through which the water passes in the heat exchanger (30) and the heat conductor (32) are arranged in a serpentine shape.

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