Heat supply metering device capable of reducing metering deviation

Abstract

The utility model relates to the technical field of heat supply metering, and discloses a heat supply metering device capable of reducing metering deviation, which comprises a metering instrument body, a connecting pipeline and a heat supply pipe, one end of the connecting pipeline is fixedly connected with the metering instrument body, and the heat supply pipe is aligned with the connecting pipeline. When the sleeve is connected with the heat supply pipe, the end of the connecting pipeline is close to the end of the heat supply pipe, so that the first sealing ring, the second sealing ring and the third sealing ring conduct multiple sealing on the connecting position of the two pipelines at the same time, after the sleeve is connected with the heat supply pipe, the sleeve can be extruded and positioned through the extrusion sleeve, and the sleeve is prevented from loosening; and a fourth sealing ring on the sleeve can achieve a sealing effect again, and in the equipment, when the metering instrument body is connected with the heat supply pipe through a plurality of sealing rings, a multi-sealing effect is achieved, the problem of deviation of the heat supply metering device is solved, and the heat supply metering device is convenient to disassemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of heat metering technology, specifically a heat metering device that can reduce metering deviation. Background Technology

[0002] Heat metering devices are used to measure and record heat consumption in heating systems, serving as crucial tools for effective energy management and energy conservation. The working principle of heat metering devices is based on thermodynamics, calculating heat consumption by measuring the flow rate and temperature difference of the heating medium. Specifically, a flow meter measures the flow rate of the heating medium, a temperature sensor measures the temperature difference between the inlet and outlet of the heating medium, and then an integrator calculates the heat consumption based on these two parameters and the thermophysical properties of the heating medium (such as specific heat capacity).

[0003] In heat metering, heat meters are typically installed at the heating pipes to measure the heat supply in real time. Traditional installation methods often use flange connections, clamp connections, or welding to fix the heat metering device. However, welding makes disassembly and maintenance difficult later, and flange connections have poor sealing, which can affect metering accuracy and lead to deviations. Therefore, those skilled in the art have provided a heat metering device that can reduce metering deviations to solve the problems mentioned in the background art. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a heating metering device that can reduce metering deviation. This solves the problem that traditional installation methods often use flange connections, clamp connections, or welding to install and fix the heating metering device. However, welding makes it difficult to disassemble and maintain later, and flange connections have poor sealing, which can affect metering accuracy and easily lead to deviations.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heating metering device that can reduce metering deviation, comprising a metering instrument body, a connecting pipe, and a heating pipe. One end of the connecting pipe is fixedly connected to the metering instrument body. The heating pipe is aligned with the connecting pipe. A first convex ring is installed at the end of the connecting pipe away from the metering instrument body, and a first sealing ring is provided on the first convex ring. A sleeve is fitted around the periphery of the connecting pipe. A second convex ring is installed inside the end of the sleeve adjacent to the metering instrument body, and a second sealing ring is provided on the second convex ring. A third sealing ring is installed at the end of the sleeve away from the metering instrument body. A third convex ring is installed on the outer wall of the heating pipe. A compression sleeve is provided between the sleeve and the metering instrument body, and a fourth sealing ring is installed on the compression sleeve.

[0008] Preferably, a second threaded groove is provided on the outer wall of the heating pipe, and the sleeve is threadedly connected to the heating pipe through the second threaded groove. The third sealing ring on the sleeve is pressed and contacted with the third convex ring. The sleeve is moved upward so that the upper end of the sleeve is threadedly connected to the heating pipe through the second thread on the outer wall of the heating pipe. The third sealing ring is deformed by the compression of the sleeve and the third convex ring to form a first seal.

[0009] Preferably, one end of the second sealing ring is pressed against the second convex ring, and the other end of the second sealing ring is pressed against the first convex ring to form a second seal.

[0010] Preferably, the first convex ring has an annular slot, the first sealing ring is inserted into the first convex ring through the annular slot, and the end of the first sealing ring away from the annular slot is pressed against the port of the heating pipe to form a third seal.

[0011] Preferably, a first thread is formed on the outer wall of the connecting pipe, the extrusion sleeve is threaded into the connecting pipe through the first thread, one end of the fourth sealing ring is in abutting contact with the extrusion sleeve, and the other end of the fourth sealing ring is in extrusion contact with the sleeve, forming a fourth seal.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a heating metering device that can reduce metering deviation, and has the following beneficial effects:

[0014] Through design, the heating metering device in this utility model consists of a metering instrument body, connecting pipes, and heating pipes. When the sleeve is connected to the heating pipe, the end of the connecting pipe is close to the end of the heating pipe, so that the first sealing ring, the second sealing ring, and the third sealing ring simultaneously provide multiple seals at the connection between the two pipes. After the sleeve is connected to the heating pipe, it can be squeezed and positioned by the compression sleeve to prevent the sleeve from loosening. Furthermore, the fourth sealing ring on the sleeve can provide a sealing effect again. In this device, multiple sealing rings provide multiple sealing effects when the metering instrument body is connected to the heating pipe, reducing the problem of deviation in the heating metering device and facilitating disassembly and maintenance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a heating metering device that can reduce metering deviation, provided in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of a heating metering device that can reduce metering deviation, as provided in an embodiment of this application.

[0017] Figure 3This is a schematic diagram of the structure of a heating metering device that can reduce metering deviation, as provided in an embodiment of this application.

[0018] In the diagram: 1. Meter body; 2. Connecting pipe; 201. First convex ring; 2011. Annular slot; 202. First thread; 3. First sealing ring; 4. Sleeve; 401. Second convex ring; 5. Second sealing ring; 6. Third sealing ring; 7. Heating pipe; 701. Third convex ring; 702. Second thread; 8. Extrusion sleeve; 9. Fourth sealing ring. Detailed Implementation

[0019] 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.

[0020] This utility model provides a technical solution: a heat metering device that can reduce metering deviation. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 The device includes a meter body 1, a connecting pipe 2, and a heating pipe 7. One end of the connecting pipe 2 is fixedly connected to the meter body 1. The heating pipe 7 is aligned with the connecting pipe 2. A first convex ring 201 is installed at the end of the connecting pipe 2 away from the meter body 1. A first sealing ring 3 is provided on the first convex ring 201. A sleeve 4 is fitted around the periphery of the connecting pipe 2. A second convex ring 401 is installed inside the end of the sleeve 4 adjacent to the meter body 1. A second sealing ring 5 is provided on the second convex ring 401. A third sealing ring 6 is installed at the end of the sleeve 4 away from the meter body 1. A third convex ring 701 is installed on the outer wall of the heating pipe 7. A compression sleeve 8 is provided between the sleeve 4 and the meter body 1. A fourth sealing ring 9 is installed on the compression sleeve 8.

[0021] Please see Figure 1 , Figure 2 , Figure 3The outer wall of the heating pipe 7 is provided with a second threaded groove 702. The sleeve 4 is threadedly connected to the heating pipe 7 through the second threaded groove 702. The third sealing ring 6 on the sleeve 4 is pressed against the third convex ring 701. When the sleeve 4 is moved upward, the upper end of the sleeve 4 is threadedly connected to the heating pipe 7 through the second thread 702 on the outer wall of the heating pipe 7. The third sealing ring 6 is deformed by the compression of the sleeve 4 and the third convex ring 701, forming a first seal. One end of the second sealing ring 5 is pressed against the second convex ring 401, and the other end of the second sealing ring 5 is pressed against the first convex ring 201, forming a second seal. The first convex ring 201 is provided with an annular slot 2011. The first sealing ring 3 is inserted into the first convex ring 201 through the annular slot 2011. The end of the first sealing ring 3 away from the annular slot 2011 is squeezed against the port of the heating pipe 7 to form a third seal. The outer wall of the connecting pipe 2 is provided with a first thread 202. The extrusion sleeve 8 is threadedly connected to the connecting pipe 2 through the first thread 202. One end of the fourth sealing ring 9 is in abutting contact with the extrusion sleeve 8, and the other end of the fourth sealing ring 9 is in abutting contact with the sleeve 4 to form a fourth seal. In this device, multiple sealing rings enable the meter body 1 to have multiple sealing effects when connected to the heating pipe 7, reducing the problem of deviation in the heating metering device and facilitating disassembly and maintenance.

[0022] The heating metering device in this utility model consists of a metering instrument body 1, a connecting pipe 2, and a heating pipe 7. The connecting pipe 2 is connected to the metering instrument body 1. A first convex ring 201 is installed at the end of the connecting pipe 2 away from the metering instrument body 1. An annular slot 2011 is provided on the first convex ring 2011. A first sealing ring 3 is inserted into the annular slot 2011. A sleeve 4 is fitted around the connecting pipe 2. A second convex ring 401 is installed in the end port of the sleeve 4 adjacent to the metering instrument body 1. A second sealing ring 5 is provided on the second convex ring 401. A third convex ring 701 is installed on the outer wall of the heating pipe 7. A third sealing ring 6 is provided between the third convex ring 701 and the sleeve 4.

[0023] When installing the meter body 1, align the connecting pipe 2 with the heating pipe 7. Then, move the sleeve 4 upward so that the upper end of the sleeve 4 is threadedly connected to the heating pipe 7 through the second thread 702 on the outer wall of the heating pipe 7. When the sleeve 4 is threadedly connected to the heating pipe 7, the third sealing ring 6 is deformed by the compression of the sleeve 4 and the third convex ring 701 to form the first seal. At the same time, the second convex ring 401 inside the sleeve 4 drives the second sealing ring 5 to move upward and contact and compress the bottom side of the first convex ring 201 to form the second seal. The first sealing ring 3 inside the first convex ring 201 is then compressed with the end of the heating pipe 7 to form the third seal. After the sleeve 4 is connected to the heating pipe 7, rotate the compression sleeve 8 threaded on the connecting pipe 2. The fourth sealing ring 9 on the compression sleeve 8 is then compressed and contacted with the bottom end of the sleeve 4 to form the fourth seal.

[0024] In the above structure, when the sleeve 4 is connected to the heating pipe 7, the end of the connecting pipe 2 is close to the end of the heating pipe 7, so that the first sealing ring 3, the second sealing ring 5 and the third sealing ring 6 simultaneously provide multiple seals at the connection of the two pipes. After the sleeve 4 is connected to the heating pipe 7, it can be squeezed and positioned by the compression sleeve 8 to prevent the sleeve 4 from loosening. Furthermore, the fourth sealing ring 9 on the sleeve 4 can provide a sealing effect again. In this device, multiple sealing rings provide multiple sealing effects when the meter body 1 is connected to the heating pipe 7, reducing the problem of deviation in the heating metering device and facilitating disassembly and maintenance.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat supply metering device capable of reducing metering deviation, comprising a metering instrument body (1), a connecting pipeline (2) and a heat supply pipeline (7), one end of the connecting pipeline (2) is fixedly connected with the metering instrument body (1), and the heat supply pipeline (7) is aligned with the connecting pipeline (2), characterized in that: The first convex ring (201) is arranged at one end of the connecting pipeline (2) away from the meter body (1), and the first sealing ring (3) is arranged on the first convex ring (201); the sleeve pipe (4) is arranged on the side of the connecting pipeline (2), the second convex ring (401) is arranged at one end of the sleeve pipe (4) close to the port of the meter body (1), and the second sealing ring (5) is arranged on the second convex ring (401); the third sealing ring (6) is arranged at one end of the sleeve pipe (4) away from the meter body (1); the third convex ring (701) is arranged on the outer wall of the heat supply pipe (7); the extrusion sleeve (8) is arranged between the sleeve pipe (4) and the meter body (1), and the fourth sealing ring (9) is arranged on the extrusion sleeve (8). ​ 2. The heat supply metering device capable of reducing metering deviation according to claim 1, characterized in that: The first thread (202) is arranged on the outer wall of the connecting pipeline (2), and the extrusion sleeve (8) is threadedly connected with the connecting pipeline (2) through the first thread (202).

3. The heat supply metering device capable of reducing metering deviation according to claim 1, characterized in that: One end of the fourth sealing ring (9) is in abutting contact with the extrusion sleeve (8), and the other end of the fourth sealing ring (9) is in extrusion contact with the sleeve pipe (4).

4. The heat supply metering device capable of reducing metering deviation according to claim 1, characterized in that: The second thread groove (702) is arranged on the outer wall of the heat supply pipe (7), the sleeve pipe (4) is threadedly connected with the heat supply pipe (7) through the second thread groove (702), and the third sealing ring (6) on the sleeve pipe (4) is in extrusion contact with the third convex ring (701).

5. The heat supply metering device capable of reducing metering deviation according to claim 1, characterized in that: One end of the second sealing ring (5) is in extrusion contact with the second convex ring (401), and the other end of the second sealing ring (5) is in extrusion contact with the first convex ring (201).

6. The heat supply metering device capable of reducing metering deviation according to claim 1, characterized in that: The annular insertion groove (2011) is arranged on the first convex ring (201), the first sealing ring (3) is inserted with the first convex ring (201) through the annular insertion groove (2011), and one end of the first sealing ring (3) away from the annular insertion groove (2011) is in extrusion contact with the port of the heat supply pipe (7).

Images