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CN-224215615-U - High-precision temperature control system adopting two-stage semiconductor refrigeration

CN224215615UCN 224215615 UCN224215615 UCN 224215615UCN-224215615-U

Abstract

The utility model relates to the technical field of semiconductor refrigeration, in particular to a high-precision temperature control system adopting two-stage semiconductor refrigeration. The utility model adjusts the voltage at two ends of a first refrigerating module through a first voltage regulator, controls the refrigerating capacity of the first refrigerating module, primarily controls the temperature of chilled water, adjusts the voltage at two ends of a second refrigerating module through a second voltage regulator, controls the refrigerating capacity of the second refrigerating module, precisely controls the temperature of the chilled water through the second refrigerating module, adopts a semiconductor refrigerating system, is convenient to control and has high precision, the precision of the outlet water temperature of the two-stage semiconductor refrigerating system can be controlled to be within 10mk, and the high-precision temperature control system provides more precise chilled water supply temperature for special equipment, thereby reducing the error between the water supply temperature and the user-set temperature to a certain extent.

Inventors

  • KONG JIE
  • Gu jiaxing
  • JIN XIN

Assignees

  • 合肥亦威科技有限公司

Dates

Publication Date
20260508
Application Date
20240226

Claims (7)

  1. 1. A high-precision temperature control system adopting two-stage semiconductor refrigeration comprises a water supply module (1) for providing a refrigeration water source, a refrigeration module (2) for refrigerating water in the water supply module (1), and a cooling module (3) for keeping the temperature of the hot end of the refrigeration module (2) constant, and is characterized in that: The refrigerating module (2) comprises a first semiconductor refrigerating block (21), a refrigerating water pipeline (22) and a cooling water pipeline (23), wherein the first semiconductor refrigerating block (21) is connected with a second semiconductor refrigerating block (24) through the refrigerating water pipeline (22); The first semiconductor refrigerating block (21) comprises a first refrigerating module (211), first hot ends (212) are arranged at two ends of the first refrigerating module (211), the second semiconductor refrigerating block (24) comprises a second refrigerating module (241), second hot ends (242) are arranged at two ends of the second refrigerating module (241), the first refrigerating module (211) is communicated with the second refrigerating module (241) through a refrigerating water pipeline (22), first hot ends (212) at two ends of the first refrigerating module (211) are communicated with second hot ends (242) at two ends of the second refrigerating module (241) through a cooling water pipeline (23), and a first voltage regulator (213) and a second voltage regulator (243) are respectively arranged on the first refrigerating module (211) and the second refrigerating module (241).
  2. 2. The high-precision temperature control system adopting two-stage semiconductor refrigeration according to claim 1, wherein the cooling module (3) comprises a cooling water three-way valve (31) arranged at a water inlet of a cooling water pipeline (23), one side of the cooling water three-way valve (31) is sequentially connected with a cooling water pump (32), a cooling water inlet thermometer (33) and a cooling water flowmeter (34), the other side of the cooling water flowmeter (34) is respectively connected with an outlet of the cooling water pipeline (23) through the cooling water pipeline (23) by a second hot end (242) at two ends of the second refrigeration module (241) and one end of a first hot end (212) at two ends of the first refrigeration module (211) after flowing into the circulation, the other end flows out after flowing into the circulation, and a final outflow opening is connected with a cooling water outlet thermometer (35) through the cooling water pipeline (23).
  3. 3. The high-precision temperature control system adopting double-stage semiconductor refrigeration as claimed in claim 2, wherein a three-way valve opening degree adjustment is connected between the cooling water inlet thermometer (33) and the cooling water three-way valve (31).
  4. 4. The high-precision temperature control system adopting double-stage semiconductor refrigeration according to claim 1, wherein the water supply module (1) comprises a backwater thermometer (11) arranged at a water inlet of a chilled water pipeline (22), a water tank (12) and a chilled water pump (13) are sequentially connected to the other side of the backwater thermometer (11) through the chilled water pipeline (22), a water outlet of the chilled water pump (13) is communicated with the first refrigeration module (211) through the chilled water pipeline (22), a first chilled water thermometer (14) is connected between the first refrigeration module (211) and the second refrigeration module (241) through the chilled water pipeline (22), and a chilled water flowmeter (15) and a second chilled water thermometer (16) are sequentially connected to a water outlet of the second refrigeration module (241) through the chilled water pipeline (22).
  5. 5. A high precision temperature control system employing dual stage semiconductor refrigeration as described in claim 4 wherein said first voltage regulator (213) is connected to a first chilled water thermometer (14).
  6. 6. A high precision temperature control system employing dual stage semiconductor refrigeration as described in claim 4, wherein said second voltage regulator (243) is connected to a second chilled water thermometer (16).
  7. 7. The high-precision temperature control system adopting double-stage semiconductor refrigeration as claimed in claim 4, wherein a water pump variable-frequency regulator (17) is connected between the chilled water pump (13) and the chilled water flow meter (15).

Description

High-precision temperature control system adopting two-stage semiconductor refrigeration Technical Field The utility model relates to the technical field of semiconductor refrigeration, in particular to a high-precision temperature control system adopting two-stage semiconductor refrigeration. Background The special equipment is eight kinds of equipment, such as boilers, pressure vessels (gas cylinders), pressure pipelines, elevators, hoisting machinery, passenger ropeways, large-scale amusement facilities and special motor vehicles in a field (factory), which are high in life safety and danger, along with the continuous development of society, the temperature control precision of the special equipment is required to be higher and higher, and the temperature control precision of the conventional special equipment does not meet the requirements of users, so that the temperature control precision of the special equipment is required to be improved urgently, and good use experience is provided for the users. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a high-precision temperature control system adopting two-stage semiconductor refrigeration, solves the problem that the temperature control precision of the existing special equipment does not meet the requirements of users, and has the advantages of stable refrigeration capacity, convenient control and high precision. In order to achieve the above purpose, the present utility model provides the following technical solutions: The high-precision temperature control system adopting double-stage semiconductor refrigeration comprises a water supply module for providing a refrigeration water source, a refrigeration module for refrigerating water in the water supply module, and a cooling module for keeping the temperature of the hot end of the refrigeration module constant, wherein the refrigeration module comprises a first semiconductor refrigeration block, a chilled water pipeline and a cooling water pipeline, the first semiconductor refrigeration block is connected with a second semiconductor refrigeration block through the chilled water pipeline, the first semiconductor refrigeration block comprises a first refrigeration module, both ends of the first refrigeration module are respectively provided with a first hot end, the second semiconductor refrigeration block comprises a second refrigeration module, both ends of the second refrigeration module are respectively provided with a second hot end, the first refrigeration module is communicated with the second refrigeration module through the chilled water pipeline, both ends of the first refrigeration module and the second hot end of the second refrigeration module are respectively provided with a first voltage regulator and a second voltage regulator. Further, the cooling module comprises a cooling water three-way valve arranged at a water inlet of a cooling water pipeline, one side of the cooling water three-way valve is sequentially connected with a cooling water pump, a cooling water inlet thermometer and a cooling water flowmeter, the other side of the cooling water flowmeter is respectively connected with an outlet of the cooling water pipeline through the cooling water pipeline, one end of the cooling water pipeline in the second hot ends at two ends of the second refrigerating module and one end of the first hot ends 212 at two ends of the first refrigerating module flows into circulation and then flows out, the other end of the cooling water pipeline circulates and then flows out, and a final outflow opening is connected with the cooling water outlet thermometer through the cooling water pipeline. Further, a three-way valve opening degree adjustment is connected between the cooling water inlet thermometer and the cooling water three-way valve. Further, the water supply module is including setting up the return water thermometer at the frozen water pipeline water inlet, the opposite side of return water thermometer has connected gradually water tank and frozen water pump through frozen water pipeline, frozen water pump's delivery port pass through frozen water pipeline with first refrigeration module is linked together, be connected with first frozen water thermometer through frozen water pipeline between first refrigeration module and the second refrigeration module, frozen water flowmeter and second frozen water thermometer have been connected gradually through frozen water pipeline to the delivery port of second refrigeration module. Further, the first voltage regulator is connected with a first chilled water thermometer. Further, the second voltage regulator is connected with a second chilled water thermometer. Further, a water pump variable frequency regulator is connected between the chilled water pump and the chilled water flowmeter. Compared with the prior art, the utility model provides a high-precision temperature control system adopting two-stage s