Temperature-pressure-free compensation heat type gas mass flow meter

Abstract

The utility model provides a heat type gas mass flow meter free of temperature and pressure compensation, and belongs to the technical field of flow meters. Comprising a heat dissipation assembly, the heat dissipation assembly is arranged on the outer side of a detection pipeline, the heat dissipation assembly comprises a fixing ring fixed to the inner wall of the detection pipeline, a connecting plate is fixed to the top of the fixing ring, an external expansion heat conduction plate is fixed to the other end of the connecting plate, and open grooves are formed in the outer side of the detection pipeline; the detection pipeline is fixedly connected with the connecting plate through the open groove, and the heat dissipation assembly is installed on the outer side of the detection pipeline and plays a key role in heat dissipation. The fixing ring is fixed on the inner wall of the detection pipeline and provides stable support for the whole heat dissipation assembly. One end of the connecting plate is connected with the top of the fixing ring; when heat is generated in the detection pipeline, the heat is conducted to the connecting plate through the fixing ring, and then the heat is dissipated by the external expansion heat conducting plate, so that the temperature of the detection pipeline is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and in particular to a thermal gas mass flow meter that does not require temperature and pressure compensation. Background Technology

[0002] Thermocompensated thermal gas mass flow meters calculate the mass flow rate of a gas by measuring the temperature change of the gas inside the meter. They automatically compensate for the effects of gas temperature and pressure changes on the flow rate, thus accurately measuring the mass flow rate under various environmental conditions. Compared to traditional volumetric flow meters, thermal gas mass flow meters offer higher accuracy and stability and are widely used in industrial gas monitoring, pipeline gas flow measurement, and process control.

[0003] However, existing flow meters are greatly affected by the internal temperature of the equipment during actual use. When the internal temperature of the equipment fluctuates, the performance of the key components of the flow meter will change accordingly. For example, the sensitivity of the sensor will decrease, which will lead to a significant decrease in the accuracy of the measurement. The deviation between the measurement data and the actual flow will increase, resulting in a poorer measurement effect of the equipment, which in turn affects the accurate control and cost accounting of the entire production process.

[0004] Therefore, this application provides a thermo- and pressure-compensated thermal gas mass flow meter to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a thermo- and pressure-compensated thermal gas mass flow meter.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a thermo- and pressure-compensated thermal gas mass flow meter, comprising:

[0007] Inspect the pipeline;

[0008] A heat dissipation assembly is placed on the outside of the detection pipe. The heat dissipation assembly includes a fixing ring fixed to the inner wall of the detection pipe, a connecting plate fixed to the top of the fixing ring, and an outwardly expanding heat-conducting plate fixed to the other end of the connecting plate.

[0009] A connecting assembly is placed at both ends of a detection pipe. The connecting assembly includes a first connecting flange fixed at both ends of the detection pipe, and a snap-fit ​​groove is provided on the first connecting flange. A second connecting flange is provided at the other end of the first connecting flange away from the detection pipe, and a groove is provided on the second connecting flange. A snap-fit ​​plate is slidably connected to the second connecting flange through the groove. A control button is fixed at one end of the snap-fit ​​plate, and a damping spring is fixed at the other end of the control button.

[0010] Furthermore, a damage prevention ring is fixed to the outer wall of the detection pipe away from the outward heat-conducting plate, and heat dissipation openings are evenly provided on the damage prevention ring.

[0011] The beneficial effects of adopting the above-mentioned further solution are: the anti-damage ring is fixed on the outer wall of the detection pipe away from the outer heat-conducting plate. During use, the anti-damage ring can prevent the detection pipe from being damaged by external collisions, and the uniform heat dissipation openings on it can help dissipate the heat of the pipe.

[0012] Furthermore, the first connecting flange and the second connecting flange are connected by a snap-fit ​​plate and a snap-fit ​​slot.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the snap-fit ​​plate is snapped into the snap-fit ​​slot of the first connecting flange to achieve snap-fit ​​with the second connecting flange, and the connection is stable and convenient.

[0014] Furthermore, a support pipe is fixed to the top of the detection pipe, and a detection gauge is fixed to the top of the support pipe.

[0015] The advantages of adopting the above-mentioned further solution are: the support pipe is fixed to the top of the detection pipe, providing a stable support for the detection gauge; the detection gauge is installed vertically through the support pipe, which facilitates real-time monitoring of gas flow data and ensures measurement stability and convenient reading.

[0016] Furthermore, slots are provided on the outer side of the detection pipe, and the detection pipe is fixedly connected to the connecting plate through the slots.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the groove on the outside of the detection pipe is fixedly connected to the connecting plate, and the groove limit ensures the accurate installation of the connecting plate, so that the heat dissipation component is firmly combined with the detection pipe.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] 1. The heat dissipation assembly is installed on the outside of the detection pipe and plays a crucial role in heat dissipation. The retaining ring is fixed to the inner wall of the detection pipe, providing stable support for the entire heat dissipation assembly. One end of the connecting plate is connected to the top of the retaining ring, and the other end is connected to the external heat-conducting plate. When heat is generated inside the detection pipe, the heat is conducted to the connecting plate through the retaining ring, and then dissipated by the external heat-conducting plate, effectively reducing the temperature of the detection pipe;

[0020] 2. The connecting components are located at both ends of the inspection pipe and are used to connect the inspection pipe to other components. The first connecting flange is fixed at both ends of the inspection pipe, and the snap-fit ​​groove on it is the key structure for achieving the connection. The second connecting flange is located at the end of the first connecting flange away from the inspection pipe, and its groove allows the snap-fit ​​plate to slide. During connection, moving the control button compresses the damping spring, causing the snap-fit ​​plate to slide into the groove of the second connecting flange. After aligning the first and second connecting flanges, releasing the control button causes the damping spring to rebound, pushing the snap-fit ​​plate into the snap-fit ​​groove of the first connecting flange, completing the connection. This connection method is simple to operate and ensures the stability and sealing of the connection, effectively achieving a reliable connection between the inspection pipe and other components. Attached Figure Description

[0021] Figure 1 This is a front view of a thermo- and pressure-compensated thermal gas mass flow meter according to this utility model.

[0022] Figure 2 This is a cross-sectional view of a thermo- and pressure-compensated thermal gas mass flow meter according to the present invention.

[0023] Figure 3 This is a structural diagram of the heat dissipation component in a thermostatically heated gas mass flow meter that does not require temperature and pressure compensation according to this utility model.

[0024] Figure 4 This is a structural diagram of the connecting components in a thermo-pressure-compensated thermal gas mass flow meter according to this utility model.

[0025] Figure Labels

[0026] 1. Inspect pipelines;

[0027] 2. Heat dissipation components; 21. Externally extended heat conduction plate; 22. Connecting plate; 23. Fixing ring; 24. Damage-proof ring; 25. Heat dissipation opening;

[0028] 3. Connecting components; 31. First connecting flange; 32. Snap-fit ​​slot; 33. Second connecting flange; 34. Fixing screws; 35. Snap-fit ​​plate; 36. Control button; 37. Damping spring;

[0029] 4. Connecting pipes; 5. Supporting pipes; 6. Inspection gauges. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a temperature and pressure compensation-free thermal gas mass flow meter, comprising: a detection pipeline 1;

[0032] Heat dissipation component 2 is placed on the outside of detection pipe 1. Heat dissipation component 2 includes a fixing ring 23 fixed to the inner wall of detection pipe 1. A connecting plate 22 is fixed to the top of the fixing ring 23, and an outwardly expanding heat-conducting plate 21 is fixed to the other end of the connecting plate 22.

[0033] The connecting assembly 3 is located at both ends of the detection pipe 1. The connecting assembly 3 includes a first connecting flange 31 fixed at both ends of the detection pipe 1. The first connecting flange 31 has a snap-fit ​​groove 32. The other end of the first connecting flange 31 away from the detection pipe 1 is provided with a second connecting flange 33. The second connecting flange 33 has a groove. The second connecting flange 33 is slidably connected to a snap-fit ​​plate 35 through the groove. One end of the snap-fit ​​plate 35 is fixed with a control button 36, and the other end of the control button 36 is fixed with a damping spring 37.

[0034] Furthermore, such as Figure 1 - Figure 3 As shown: A damage prevention ring 24 is fixed on the outer wall of the detection pipe 1 away from the external heat conduction plate 21. The damage prevention ring 24 has heat dissipation holes 25 evenly distributed on it. The damage prevention ring 24 is fixed on the outer wall of the detection pipe 1 away from the external heat conduction plate 21. In use, the damage prevention ring 24 can prevent the detection pipe 1 from being damaged by external collisions, and the evenly distributed heat dissipation holes 25 on it can help dissipate the heat of the pipe.

[0035] The above solutions still have issues with equipment stability, such as... Figure 3 As shown: In this solution, the outer side of the detection pipe 1 is provided with a groove. The detection pipe 1 is fixedly connected to the connecting plate 22 through the groove. The groove on the outer side of the detection pipe 1 is fixedly connected to the connecting plate 22. The groove limit ensures that the connecting plate 22 is accurately installed, so that the heat dissipation component 2 and the detection pipe 1 are firmly connected.

[0036] Working principle: such as Figure 1 - Figure 4 As shown, the heat dissipation component 2 is installed on the outside of the detection pipe 1, and the fixing ring 23 is fixed to the inner wall of the detection pipe 1 to support the heat dissipation component 2. One end of the connecting plate 22 is connected to the top of the fixing ring 23, and the other end is connected to the external heat conduction plate 21. The heat generated in the detection pipe 1 is first transferred to the fixing ring 23, and then through the connecting plate 22 to the external heat conduction plate 21, where the heat is dissipated and the temperature of the detection pipe 1 is reduced.

[0037] The connecting assembly 3 is located at both ends of the detection pipe 1 and is used to connect the detection pipe 1 to other components. The first connecting flange 31 is fixed at both ends of the detection pipe 1 and has a snap-fit ​​groove 32. The second connecting flange 33 is located at the end of the first connecting flange 31 away from the detection pipe 1. Its groove allows the snap-fit ​​plate 35 to slide. When connecting, press the control button 36 to compress the damping spring 37. The snap-fit ​​plate 35 slides into the groove of the second connecting flange 33. After aligning the first connecting flange 31 and the second connecting flange 33, release the control button 36. The damping spring 37 rebounds, and the snap-fit ​​plate 35 snaps into the snap-fit ​​groove 32 to complete the connection. The second connecting flange 33 is reinforced with fixing screws 34 on the outside. One side of it is connected to the connecting pipe 4 to achieve docking.

[0038] The anti-damage ring 24 is located on the outer wall of the detection pipe 1 away from the outer heat-conducting plate 21 to prevent the detection pipe 1 from being damaged by collision. The heat dissipation opening 25 assists in heat dissipation. The support pipe 5 is located on the top of the detection pipe 1 to support the detection gauge 6, allowing the detection gauge 6 to be installed vertically for easy monitoring of gas flow data. The outer side of the detection pipe 1 has a groove for fixing to the connecting plate 22. The groove limit ensures that the connecting plate 22 is installed accurately, making the heat dissipation component 2 and the detection pipe 1 firmly connected.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A warm-up pressure-compensated thermal gas mass flowmeter characterized by, Include: Detection pipeline (1); Heat dissipation assembly (2), the heat dissipation assembly (2) is placed outside the detection pipeline (1), the heat dissipation assembly (2) includes the fixed ring (23) fixed in the inner wall of the detection pipeline (1), the top of the fixed ring (23) is fixed with the connecting plate (22), the other end of the connecting plate (22) is fixed with the outer expansion heat dissipation plate (21); Connecting assembly (3), the connecting assembly (3) is placed at both ends of the detection pipeline (1), the connecting assembly (3) includes the first connecting flange (31) fixed at both ends of the detection pipeline (1), the first connecting flange (31) is provided with clamping slot (32), the other end of the first connecting flange (31) away from the detection pipeline (1) is provided with the second connecting flange (33), the second connecting flange (33) is provided with a slot, the second connecting flange (33) is slidably connected with the clamping plate (35) through the slot, one end of the clamping plate (35) is fixed with the control button (36), the other end of the control button (36) is fixed with the damping spring (37).

2. A warm-up pressure-compensated thermal gas mass flowmeter according to claim 1, wherein, The outer wall of the detection pipeline (1) away from the outer expansion heat dissipation plate (21) is fixed with the anti-damage ring (24), and the anti-damage ring (24) is uniformly provided with heat dissipation holes (25).

3. A warm-up pressure-compensated thermal gas mass flowmeter according to claim 1, wherein, The other end of the damping spring (37) is fixedly connected with the slot of the second connecting flange (33).

4. A warm-up free, pressure compensated thermal gas mass flow meter according to claim 1, characterized in that The first connecting flange (31) and the second connecting flange (33) are clamped by the clamping plate (35) and the clamping slot (32).

5. A warm-up free, pressure compensated thermal gas mass flow meter according to claim 1, wherein, The top of the detection pipeline (1) is fixed with the support pipeline (5), and the top of the support pipeline (5) is fixed with the detection table (6).

6. A warm-up free, pressure compensated thermal gas mass flow meter according to claim 1, wherein, The outer side of the detection pipeline (1) is provided with a slot, and the detection pipeline (1) is fixedly connected with the connecting plate (22) through the slot.

7. A warm-up free, pressure compensated thermal gas mass flow meter according to claim 1, wherein, The outer side of the second connecting flange (33) is provided with a fixed screw (34), and the second connecting flange (33) is fixed with the connecting pipeline (4) away from the fixed screw (34).

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