Thermal gas mass flowmeter

Abstract

The utility model discloses a thermal type gas mass flowmeter, including butt joint pipe body and the flowmeter body of being installed to the right side of butt joint pipe body top surface in running through, still include: the outside of butt joint pipe body is provided with positioning mechanism, and positioning mechanism contains main positioning sleeve board and vice positioning sleeve board, and the front end of main positioning sleeve board and vice positioning sleeve board is connected with each other, the left and right ends of butt joint pipe body all are provided with butt joint mechanism, and butt joint mechanism contains butt joint sleeve ring, and the outer end of butt joint sleeve ring and butt joint pipe body is connected with each other through adjusting screw of symmetrical distribution. The thermal type gas mass flowmeter, through main positioning sleeve board and vice positioning sleeve board will flowmeter install in the outside of butt joint pipe body, and by the stability of guaranteeing when horizontal installation of support inclined pole, simultaneously through the main butt joint lining board and vice butt joint lining board of butt joint sleeve ring inside each other abut, promote the butt joint efficiency of butt joint pipe body.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, specifically to a thermal gas mass flow meter. Background Technology

[0002] A mass flow meter is an instrument that measures gas flow based on the principle of thermal diffusion. It features direct measurement of mass flow and no need for temperature and pressure compensation. The gas flow carries away heat, causing the RH temperature to drop. The mass flow is calculated through a mathematical model of temperature difference and flow rate. Mass flow meters have a simple structure, low pressure loss, and fast response, and are widely used in equipment such as boiler rooms or dryers.

[0003] The invention disclosed in CN118089873B is a thermal gas mass flow meter. The bottom stop has a retracted state when the ball valve seat passes through the detection hole on the pipe to be tested, and an extended state after entering the inner cavity of the pipe to be tested and extending out of the ball valve seat. The sealing element is sleeved on the ball valve seat and is used to pass between the hole wall of the detection hole on the pipe to be tested and the outer wall of the ball valve seat. The locking nut is threaded on the ball valve seat and is used to move closer to the bottom stop in the extended state when rotating.

[0004] However, the mass flow meters disclosed above still have the following problems in actual use: Although the flow meter is connected to the pipeline through the disclosed connection mechanism, such connection mechanism cannot guarantee the connection strength when the flow meter is installed horizontally. It is easy to cause sealing failure due to lateral tilt, which affects the measurement effect. At the same time, it is difficult to achieve efficient and convenient connection with the connecting pipeline, which affects the normal use of the flow meter.

[0005] Therefore, we proposed a thermal gas mass flow meter to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this utility model is to provide a thermal gas mass flow meter to solve the problems of existing connection mechanisms that connect the flow meter to the pipeline. However, such connection mechanisms cannot guarantee the connection strength when the flow meter is installed horizontally, and are prone to sealing failure due to lateral tilt, affecting the measurement effect. At the same time, it is difficult to achieve an efficient and convenient connection with the connecting pipeline, which affects the normal use of the flow meter.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a thermal gas mass flow meter, including a connecting pipe body and a flow meter body that is installed through and on the right side of the top surface of the connecting pipe body; it also includes:

[0008] The outside of the connecting pipe body is provided with a positioning mechanism, and the positioning mechanism includes a main positioning sleeve and a secondary positioning sleeve, and the front ends of the main positioning sleeve and the secondary positioning sleeve are connected to each other.

[0009] Both ends of the connecting pipe body are provided with docking mechanisms, and the docking mechanisms include docking collars. The symmetrically distributed docking collars are connected to the outer ends of the connecting pipe body through adjusting screws.

[0010] Preferably, the positioning mechanism includes a main positioning sleeve and a secondary positioning sleeve whose rear ends are connected in a lockable manner, and the main positioning sleeve and the secondary positioning sleeve are symmetrically fitted on the right side of the connecting pipe body, and the interior of the main positioning sleeve is connected through to the lower end of the flow meter body.

[0011] Preferably, the positioning mechanism includes a supporting arc plate, which is slidably installed inside the left side of the main positioning sleeve plate. The front and rear sides of the right end of the supporting arc plate are fixedly connected to the left end of the elastic slide rod, and the right ends of the symmetrically distributed elastic slide rods are fixedly connected to the inside of the main positioning sleeve plate.

[0012] Preferably, the positioning mechanism includes a support rod, the bottom end of which is hinged to the inside of the top surface of the support arc plate, and the top end of which is hinged to the outside of the middle part of the flow meter body. The support rod and the support arc plate support the flow meter body.

[0013] Preferably, the docking mechanism includes docking rings that are arranged in a hollow structure, and the outer ends of the symmetrically arranged docking rings slide through the outside of the docking pipe body. Furthermore, a connecting pipe is inserted into the outer end of the docking pipe body, and the connecting pipe is connected to the docking pipe body to realize the flow and transportation of gas.

[0014] Preferably, the docking mechanism includes a main docking liner and a secondary docking liner, and the main docking liner is fixedly installed at an equal angle inside the docking collar at the end away from the flow meter body, and the length between adjacent main docking liners inside the docking collar is greater than the length of the main docking liner.

[0015] Preferably, the docking mechanism includes a secondary docking liner fixedly installed at an equal angle on the outer end of the connecting pipe near the docking collar, and the secondary docking liner and the main docking liner are distributed in a one-to-one correspondence, and the secondary docking liner is inserted through the gap between adjacent main docking liners. After rotating the connecting pipe, the secondary docking liner and the main docking liner collide with each other to achieve locking.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This thermal gas mass flow meter is installed on the outside of the connecting pipe body through the main positioning sleeve and the auxiliary positioning sleeve, and the stability during lateral installation is ensured by the supporting diagonal rod. At the same time, the main docking liner and the auxiliary docking liner inside the docking collar abut against each other, improving the docking efficiency of the connecting pipe body. The specific details are as follows:

[0017] 1. The main positioning sleeve and the auxiliary positioning sleeve cover the outer wall of the connecting pipe body so that the bottom end of the flow meter body enters the interior of the connecting pipe body. Then, the rear ends of the main positioning sleeve and the auxiliary positioning sleeve are locked together, thereby positioning the flow meter body and the connecting pipe body.

[0018] The main positioning sleeve is connected to the support arc plate through an elastic sliding rod. At the same time, the support arc plate is hinged to the flow meter body through the support diagonal rod on the top surface, thereby supporting the horizontally installed flow meter body and preventing it from tilting and affecting the sealing and metering effect.

[0019] 2. The connecting pipe is inserted into the inside of the connecting pipe body. The secondary docking liner is located inside the docking collar between the adjacent primary docking liners. Then, the secondary docking liner is passed through the primary docking liner and rotated again so that the secondary docking liner passes through the primary docking liner and abuts against each other.

[0020] 3. Rotating the adjusting screw drives the mating sleeve to move closer to the end of the mating pipe body, and the mating sleeve drives the connecting pipe to move synchronously, thereby locking and positioning it with the mating pipe body to prevent gas leakage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the main positioning sleeve and the auxiliary positioning sleeve of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the support arc plate installation structure of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the docking collar of this utility model;

[0026] Figure 6 This is a schematic diagram of the installation structure of the main docking liner and the auxiliary docking liner of this utility model.

[0027] In the diagram: 1. Connecting pipe body; 2. Flow meter body; 3. Main positioning sleeve; 4. Secondary positioning sleeve; 5. Connecting collar; 6. Adjusting screw; 7. Support arc plate; 8. Elastic slide bar; 9. Supporting diagonal bar; 10. Connecting pipe; 11. Main connecting liner; 12. Secondary connecting liner. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-6 The present invention provides the following technical solution:

[0030] Example 1: To address the problems existing in the use of current mass flow meters, this example provides the following technical solution: a thermal gas mass flow meter, comprising a connecting pipe body 1 and a flow meter body 2 installed through the right side of the top surface of the connecting pipe body 1; a positioning mechanism is provided on the outside of the connecting pipe body 1, and the positioning mechanism includes a main positioning sleeve 3 and a secondary positioning sleeve 4, with the front ends of the main positioning sleeve 3 and the secondary positioning sleeve 4 connected to each other; the rear ends of the main positioning sleeve 3 and the secondary positioning sleeve 4 are connected in a lockable manner, and the main positioning sleeve 3 and the secondary positioning sleeve 4 are symmetrically fitted onto the right side of the connecting pipe body 1, with the interior of the main positioning sleeve 3 penetratingly connected to the lower end of the flow meter body 2.

[0031] The positioning mechanism includes a supporting arc plate 7, which is slidably installed inside the left side of the main positioning sleeve 3. The right end of the supporting arc plate 7 is fixedly connected to the left end of the elastic slide rod 8 on both the front and rear sides. The right end of the symmetrically distributed elastic slide rod 8 is fixedly connected to the inside of the main positioning sleeve 3. The positioning mechanism includes a supporting inclined rod 9, the bottom end of which is hinged to the inside of the top surface of the supporting arc plate 7. The top end of the supporting inclined rod 9 is hinged to the outside of the middle part of the flow meter body 2. The supporting inclined rod 9 and the supporting arc plate 7 support the flow meter body 2.

[0032] like Figures 2-4As shown, when it is necessary to connect the flow meter body 2 to the connecting pipe body 1, the main positioning sleeve 3 and the auxiliary positioning sleeve 4 included in the positioning mechanism are first covered on the outer wall of the connecting pipe body 1, so that the connecting slot at the top of the main positioning sleeve 3 corresponds to the connecting slot at the top of the connecting pipe body 1, so that the bottom end of the flow meter body 2 enters the interior of the connecting pipe body 1, and then the rear ends of the main positioning sleeve 3 and the auxiliary positioning sleeve 4 are locked together.

[0033] Furthermore, the left side of the main positioning sleeve 3 is connected to the support arc plate 7 via the elastic slide rod 8, so that the support arc plate 7 is installed on the top left side of the connecting pipe body 1. At the same time, the support arc plate 7 is hinged to the flow meter body 2 via the support diagonal rod 9 on the top surface, thereby supporting the horizontally installed flow meter body 2 and preventing it from tilting and affecting the sealing and metering effect.

[0034] Example 2: To address the problems existing in the use of current mass flow meters, this example employs the following technical solution: Both ends of the connecting pipe body 1 are equipped with docking mechanisms, each including a docking collar 5. The symmetrically distributed docking collars 5 are connected to the outer ends of the connecting pipe body 1 via adjusting screws 6. The docking collars 5 within the docking mechanism are arranged in a hollow structure, and the outer ends of the symmetrically arranged docking collars 5 slide through the outside of the connecting pipe body 1. A connecting pipe 10 is inserted into the outer end of the connecting pipe body 1, and the connecting pipe 10 is connected to the connecting pipe body 1 to facilitate gas flow.

[0035] The docking mechanism includes a main docking liner 11 and a secondary docking liner 12. The main docking liner 11 is fixedly installed at an equal angle inside the docking collar 5 at the end away from the flow meter body 2, and the length between adjacent main docking liners 11 inside the docking collar 5 is greater than the length of the main docking liner 11. The secondary docking liner 12 included in the docking mechanism is fixedly installed at an equal angle on the outer end of the connecting pipe 10 near the docking collar 5, and the secondary docking liner 12 and the main docking liner 11 are distributed in a one-to-one correspondence. The secondary docking liner 12 is inserted through the gap between adjacent main docking liners 11. After rotating the connecting pipe 10, the secondary docking liner 12 and the main docking liner 11 collide with each other to lock.

[0036] like Figures 5-6 As shown, when connecting the connector body 1 and the connecting pipe 10, the docking rings 5 ​​at both ends of the connector body 1 are slid to the outermost side by hand, and then the connecting pipe 10 is inserted into the inside of the connector body 1. Then, the docking rings 5 ​​are rotated so that the secondary docking liner 12, which is set at the same angle on the outside, is located between the adjacent main docking liner 11 inside the docking rings 5. Then, the secondary docking liner 12 is passed through the main docking liner 11 and rotated again so that the secondary docking liner 12 passes through the main docking liner 11 and abuts against each other.

[0037] Furthermore, by rotating the adjusting screw 6 between the connector body 1 and the connecting ring 5, the adjusting screw 6 drives the threaded connecting ring 5 to move closer to the end of the connector body 1, and the connecting ring 5 drives the connecting pipe 10 to move synchronously, thereby locking and positioning it with the connector body 1 to prevent gas leakage.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thermal gas mass flow meter, comprising a connecting pipe body (1) and a flow meter body (2) that is installed through the right side of the top surface of the connecting pipe body (1). Its features are, Also includes: The outside of the connecting pipe body (1) is provided with a positioning mechanism, and the positioning mechanism includes a main positioning sleeve (3) and a secondary positioning sleeve (4), and the front ends of the main positioning sleeve (3) and the secondary positioning sleeve (4) are connected to each other. Both ends of the connecting pipe body (1) are provided with docking mechanisms, and the docking mechanisms include docking collars (5). The symmetrically distributed docking collars (5) are connected to the outer end of the connecting pipe body (1) through adjusting screws (6).

2. The thermal gas mass flow meter according to claim 1, characterized in that: The positioning mechanism includes a main positioning sleeve (3) and a secondary positioning sleeve (4) whose rear ends are connected in a lockable manner. The main positioning sleeve (3) and the secondary positioning sleeve (4) are symmetrically fitted on the right side of the connecting pipe body (1), and the interior of the main positioning sleeve (3) is connected to the lower end of the flow meter body (2).

3. The thermal gas mass flow meter according to claim 2, characterized in that: The positioning mechanism includes a support arc plate (7), which is slidably installed inside the left side of the main positioning sleeve (3). The front and rear sides of the right end of the support arc plate (7) are fixedly connected to the left end of the elastic slide rod (8), and the right end of the symmetrically distributed elastic slide rod (8) is fixedly connected to the inside of the main positioning sleeve (3).

4. The thermal gas mass flow meter according to claim 3, characterized in that: The positioning mechanism includes a support rod (9), the bottom end of which is hinged to the inside of the top surface of the support arc plate (7), and the top end of which is hinged to the outside of the middle part of the flow meter body (2). The support rod (9) and the support arc plate (7) support the flow meter body (2).

5. The thermal gas mass flow meter according to claim 1, characterized in that: The docking mechanism includes docking rings (5) arranged in a hollow structure, and the outer ends of the symmetrically arranged docking rings (5) slide through the outside of the docking pipe body (1). The outer end of the docking pipe body (1) is connected to a connecting pipe (10), and the connecting pipe (10) is connected to the docking pipe body (1) to realize the flow and transportation of gas.

6. The thermal gas mass flow meter according to claim 5, characterized in that: The docking mechanism includes a main docking liner (11) and a secondary docking liner (12). The main docking liner (11) is fixedly installed at an angle inside the docking collar (5) at the end away from the flow meter body (2). The length between adjacent main docking liners (11) inside the docking collar (5) is greater than the length of the main docking liner (11).

7. The thermal gas mass flow meter according to claim 6, characterized in that: The docking mechanism includes a secondary docking liner (12) which is fixedly installed at an equal angle on the outer end of the connecting pipe (10) near the docking collar (5). The secondary docking liner (12) and the main docking liner (11) are distributed in a one-to-one correspondence. The secondary docking liner (12) is inserted through the gap between the adjacent main docking liner (11). After rotating the connecting pipe (10), the secondary docking liner (12) and the main docking liner (11) collide with each other to achieve locking.

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