Thermotank for gas detection
By combining temperature sensing components and an air source heat pump, rapid and precise temperature regulation of the constant temperature chamber for gas detection is achieved, solving the problem of unstable temperature control in existing technologies and improving the accuracy of test results and the operational stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHENGHONG TESTING TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-08
AI Technical Summary
Existing constant temperature chambers for gas detection have limitations in temperature control, and cannot be quickly adjusted in high and low temperature environments, resulting in inaccurate and unstable detection results. They also lack intelligent temperature regulation strategies, making it difficult to meet the needs of high-precision detection.
Temperature is monitored in real time using temperature sensing components and fed back to the control system. Combined with the medium inlet and gas outlet, an air source heat pump is used for heating and cooling to achieve rapid and accurate temperature regulation, forming a closed-loop control to ensure stable temperature inside the constant temperature chamber.
It enables rapid and precise temperature control of the gas detection environment, improves the accuracy and reliability of detection results, reduces energy consumption, and meets energy conservation and environmental protection requirements.
Smart Images

Figure CN224208056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gas detection devices, and in particular to a constant temperature chamber for gas detection. Background Technology
[0002] In the field of gas detection, the constant temperature chamber is a key piece of equipment for ensuring the accuracy and stability of detection; its performance directly affects the reliability of the test results. The physicochemical properties of gases change significantly with temperature. Under different temperature environments, the activity and concentration of gas molecules and their interaction with the sensor differ, thus affecting the accuracy of the detection data. Therefore, precise temperature control of the gas detection environment, ensuring that the gas is under stable detection temperature conditions, is a necessary prerequisite for obtaining reliable detection results.
[0003] Currently, most temperature control chambers used for gas detection on the market have limitations in temperature control. Some chambers only have a heating function, and when the ambient temperature is high, they cannot effectively regulate the internal temperature, causing it to rise continuously and exceed the suitable temperature range for gas detection, affecting the normal operation of the detection instrument and the accuracy of the test results. While some chambers have a cooling function, they lack a precise heating compensation mechanism. When the ambient temperature is low, they struggle to quickly raise the internal temperature to a suitable level, and during the process of maintaining a constant temperature, they are prone to large temperature fluctuations, failing to meet the stringent temperature stability requirements of high-precision gas detection.
[0004] Furthermore, existing gas detection chambers often lack intelligent temperature control strategies, failing to flexibly and quickly switch between cooling and heating modes based on actual testing needs and changes in ambient temperature, thus hindering precise temperature control. These issues severely restrict the development of gas detection technology and the reliability of test results.
[0005] Therefore, we propose a constant temperature chamber for gas detection. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a constant temperature chamber for gas detection, thereby resolving the issues raised in the background section.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a constant temperature chamber for gas detection, comprising a frame, wherein a collection chamber and an air pump are fixed inside the frame, the top of the collection chamber and the air pump are connected through an inlet pipe and an outlet pipe, and the input end of the air pump is connected to a gas inlet and a gas outlet, and a temperature sensing component is fixed on the gas inlet, the bottom end of the collection chamber is connected to a medium inlet and a medium outlet, and an air source heat pump is inserted and fixed inside the medium inlet.
[0008] Preferably, within the collection chamber, the gas inlet and gas outlet are connected, and the medium inlet and medium outlet remain connected.
[0009] Preferably, one end of both the temperature sensing component and the air source heat pump is electrically connected to an external control structure.
[0010] Preferably, valves are fitted on the outside of the gas inlet, gas outlet, medium inlet, and medium outlet.
[0011] Preferably, the frame is equipped with casters at all four corners of its bottom end, and heat dissipation holes are provided on the frame.
[0012] Preferably, both the air pump and the air source heat pump are fixed to the inner wall of the frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. In this device, the temperature sensing component can monitor the temperature inside the constant temperature chamber in real time and feed the data back to the control system. Combined with the media inlet and outlet, and the gas inlet and outlet, the temperature inside the chamber can be precisely adjusted. When the temperature deviates from the set value, the temperature sensing component quickly detects it. The control system, based on the deviation instruction, introduces a medium at a suitable temperature through the media inlet and circulates the gas through the gas inlet and outlet, quickly and accurately adjusting the temperature to the target value. This ensures that the gas detection is always in a stable and optimal temperature environment, greatly improving the accuracy and reliability of the detection results.
[0015] 2. In this device, the air source heat pump serves as the core temperature control component. It utilizes low-grade heat energy from the air for heating and cooling. Compared with traditional electric heating and cooling methods, it has a higher energy efficiency ratio. During the medium circulation process, the air source heat pump works in concert to fully recover and utilize heat, reducing energy waste. When heating, it absorbs heat from the outside air and transfers it to the medium. When cooling, it transfers heat from inside the chamber to the outside, reducing overall energy consumption and conforming to the development trend of energy conservation and environmental protection.
[0016] 3. In this device, the medium inlet and outlet and gas inlet / outlet devices, in conjunction with an air source heat pump, enable rapid temperature regulation. When the ambient temperature changes or the testing requirements change, the heating or cooling function can be quickly activated. Through rapid medium circulation, the temperature inside the chamber quickly reaches the set value. Simultaneously, the temperature sensing component monitors and provides feedback in real time, forming a closed-loop control system that effectively suppresses temperature fluctuations, maintains long-term temperature stability within the constant temperature chamber, provides a continuously stable environment for gas detection, and improves testing efficiency and equipment operational stability. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the collection bin of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model.
[0020] Explanation of key symbols:
[0021] 1. Frame; 2. Gas inlet; 3. Gas outlet; 4. Medium inlet; 5. Medium outlet; 6. Air pump; 7. Temperature sensing component; 8. Air source heat pump; 9. Collection chamber. Detailed Implementation
[0022] Please see Figures 1 to 3 In the embodiments of this utility model;
[0023] Example 1: A constant temperature chamber for gas detection includes a frame 1. A collection chamber 9 and an air pump 6 are fixed inside the frame 1. The top of the collection chamber 9 and the air pump 6 are connected through an inlet pipe and an outlet pipe. The input end of the air pump 6 is connected to a gas inlet 2 and a gas outlet 3. A temperature sensing component 7 is fixed on the gas inlet 2. The bottom end of the collection chamber 9 is connected to a medium inlet 4 and a medium outlet 5. An air source heat pump 8 is inserted and fixed inside the medium inlet 4.
[0024] The temperature sensing component 7 can monitor the temperature inside the frame 1 in real time and feed the data back to the control system. Combined with the structure of the medium inlet 4 and medium outlet 5, and the gas inlet 2 and gas outlet 3, it can accurately adjust the temperature inside the frame 1. When the temperature deviates from the set value, the temperature sensing component 7 quickly senses it. The control system introduces a medium at a suitable temperature through the medium inlet according to the deviation command, and circulates the gas through the gas inlet 2 and gas outlet 3, quickly and accurately adjusting the temperature to the target value. This ensures that the gas detection is always in a stable and optimal temperature environment, greatly improving the accuracy and reliability of the detection results.
[0025] Example 2: Refer to the attached instruction manual Figure 2-3 It can be seen that the difference between Embodiment 2 and Embodiment 1 is that: in the collection chamber 9, the gas inlet 2 and the gas outlet 3 are connected, and the medium inlet 4 and the medium outlet 5 are connected; the air source heat pump 8, as the core temperature control component, uses low-grade heat energy in the air for heating and cooling. Compared with traditional electric heating and cooling methods, it has a higher energy efficiency ratio. During the medium circulation process, the air source heat pump 8 works in concert to fully recover and utilize heat, reducing energy waste. When heating, it absorbs heat from the outside air and transfers it to the medium. When cooling, it transfers heat to the outside, reducing overall energy consumption, which is in line with the development trend of energy conservation and environmental protection.
[0026] One end of the temperature sensing component 7 and the air source heat pump 8 are electrically connected to the external control structure; valves are fitted on the outside of the gas inlet 2, gas outlet 3, medium inlet 4 and medium outlet 5; universal wheel structures are fixed at the four corners of the bottom of the frame 1, and heat dissipation holes are opened on the frame 1; the air pump 6 and the air source heat pump 8 are fixed on the inner wall of the frame 1.
[0027] The medium inlet and gas inlet devices, in conjunction with the air source heat pump 8, enable rapid temperature regulation. When the ambient temperature changes or the testing requirements change, the heating or cooling function can be quickly activated. Through rapid medium circulation, the temperature inside the chamber quickly reaches the set value. Simultaneously, the temperature sensing component monitors and provides feedback in real time, forming a closed-loop control system that effectively suppresses temperature fluctuations and maintains long-term temperature stability within the constant temperature chamber. This provides a continuously stable environment for gas detection, improving testing efficiency and equipment operational stability.
[0028] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A constant temperature chamber for gas detection, characterized in that, The system includes a frame (1), inside which a collection chamber (9) and an air pump (6) are fixed. The top of the collection chamber (9) and the air pump (6) are connected through an inlet pipe and an outlet pipe. The input end of the air pump (6) is connected to a gas inlet (2) and a gas outlet (3). A temperature sensing component (7) is fixed on the gas inlet (2). The bottom end of the collection chamber (9) is connected to a medium inlet (4) and a medium outlet (5). An air source heat pump (8) is inserted and fixed in the medium inlet (4).
2. The constant temperature chamber for gas detection as described in claim 1, characterized in that: Within the collection chamber (9), the gas inlet (2) and gas outlet (3) are connected, and the medium inlet (4) and medium outlet (5) remain connected.
3. The constant temperature chamber for gas detection as described in claim 1, characterized in that: Both the temperature sensing component (7) and the air source heat pump (8) are electrically connected to an external control structure.
4. The constant temperature chamber for gas detection as described in claim 3, characterized in that: Valves are fitted on the outside of the gas inlet (2), gas outlet (3), medium inlet (4), and medium outlet (5).
5. A constant temperature chamber for gas detection as described in claim 1, characterized in that: The frame (1) is fixed with universal wheels at the four corners of its bottom end, and heat dissipation holes are provided on the frame (1).
6. The constant temperature chamber for gas detection as described in claim 5, characterized in that: The air pump (6) and the air source heat pump (8) are both fixed on the inner wall of the frame (1).