Threaded heat-resistant polyethylene ultrasonic heat meter base meter

Abstract

The utility model discloses a screwed heat-resistant polyethylene ultrasonic heat meter base meter, and relates to the technical field of ultrasonic heat meters. The screw-connected heat-resistant polyethylene ultrasonic heat meter base meter comprises a tubular shell, two ultrasonic sensor mounting holes communicated with the interior of the shell are formed in the shell at intervals, and a temperature sensor mounting hole communicated with the interior of the shell is formed in one side of the ultrasonic sensor mounting hole located below the flowing direction of a medium in the shell. A reflecting column is arranged at a position, corresponding to the ultrasonic sensor mounting hole, in the shell; the two ends of the shell are each provided with a connecting port, the outer side of each connecting port is fixedly connected with a threaded connection insert, each threaded connection insert is of a conical tubular structure, and the taper of each threaded connection insert is gradually reduced from the side connected with the corresponding connecting port to the other side; an external thread is arranged on the peripheral side of the threaded connection insert in the taper direction, and a sealing layer is arranged in a thread groove of the external thread on the outer side of the threaded connection insert.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a wire-connected heat-resistant polyethylene ultrasonic thermal meter base. Background Art

[0002] Ultrasonic heat meters are used to measure and display the heat energy released or absorbed by water flowing through a heat exchange system. After calculation and processing, they display the heat released by the measured fluid from the water inlet to the return water outlet.

[0003] Existing heat meter bases are made of copper, stainless steel, or other metal materials. This makes scale buildup easily on the inner walls of the base meter tubes during hot water transmission, especially in areas with hard water. Hard water contains large amounts of metal ions, such as calcium and magnesium. These ions combine with carbonate ions in the water to form insoluble compounds such as calcium carbonate and magnesium carbonate, which adhere to the inner walls of the copper tubes, forming scale. Scale formation not only affects the transmission of heat meter signals and, consequently, measurement accuracy, but also reduces water flow and thermal conductivity, and can easily cause corrosion on the inner walls of the copper tubes, leading to leaks and other problems.

[0004] In addition, the existing heat meter base is connected with a cylindrical external thread and the end face waterline is sealed, which has a poor sealing effect and is prone to cause medium leakage. Utility Model Content

[0005] To this end, an embodiment of the present invention provides a threaded heat-resistant polyethylene ultrasonic heat meter base to solve the problem in the above-mentioned technology that the existing heat meter base is a cylindrical external thread connection, the end face waterline seal has a poor sealing effect, and is prone to medium leakage.

[0006] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0007] A wire-bonded heat-resistant polyethylene ultrasonic thermometer base meter comprises a tubular housing, wherein two ultrasonic sensor mounting holes communicating with the interior of the housing are provided on the housing at intervals, a temperature sensor mounting hole communicating with the interior of the housing is provided on one side of the ultrasonic sensor mounting hole located below the flow direction of the medium in the housing, and a reflective column is provided in the housing at a position corresponding to the ultrasonic sensor mounting hole.

[0008] A connection port is provided at each end of the shell, and a threaded insert is fixedly connected to the outer side of the connection port. The threaded insert is a tapered tubular structure, and the taper of the threaded insert is such that the diameter gradually decreases from one side connected to the connection port toward the other side. The outer peripheral side of the threaded insert is provided with an external thread along the taper direction, and a sealing layer is provided in the thread groove of the external thread on the outer side of the threaded insert.

[0009] Optionally, an annular slot is provided at the end of the connection port, and an annular connecting portion is provided at the end with a large diameter of the threaded insert. The connecting portion is placed in the slot, and the inner wall of the slot and the outer wall of the connecting portion are provided with mutually staggered notch structures. The threaded insert is clamped in the slot of the connection port through the connecting portion.

[0010] Optionally, a first O-ring is provided between one end of the connecting portion placed in the slot and the connecting port.

[0011] Optionally, the connection port is integrally formed with the housing.

[0012] Optionally, a limiting steel ring is sleeved on the outer side of the connection port, and optionally, the connection port and the housing are integrally formed, and the limiting steel ring corresponds to the position of the connection portion in the connection port slot.

[0013] Optionally, the sealing layer is a hemp rope wound inside the external thread of the threaded insert.

[0014] Optionally, the shell is made of heat-resistant and corrosion-resistant material, a metal insert is provided between the inner wall and the outer wall of the shell, an ultrasonic sensor mounting seat is provided at a position of the metal insert corresponding to the ultrasonic sensor mounting hole on the shell, a temperature sensor mounting seat is provided at a position of the metal insert corresponding to the temperature sensor mounting hole, a reserved hole is opened at a position on the shell corresponding to the reflective column, and a limiting groove is provided at a position of the metal insert corresponding to the reserved hole and the reflective column for fixing the reflective column.

[0015] Optionally, a second O-ring is provided between the ultrasonic sensor mounting base and the wall of the ultrasonic mounting hole of the shell.

[0016] Optionally, the shell is made of heat-resistant polyethylene.

[0017] Optionally, the metal insert includes two annular pipes, the ultrasonic sensor mounting seat is fixedly connected to the annular pipes, the temperature sensor mounting seat is fixed to one side of one of the annular pipes, the two annular pipes are placed inside the shell, and the ultrasonic sensor mounting seat corresponds to the ultrasonic sensor mounting hole, and the temperature sensor mounting seat corresponds to the temperature sensor mounting hole;

[0018] The two annular pipes are connected and fixed by a plurality of connecting ribs distributed in a circumferential array, and a connection port is formed between two adjacent connecting ribs.

[0019] The utility model has at least the following beneficial effects:

[0020] The utility model provides threaded inserts fixed at the connection ports at both ends of the shell, the threaded inserts are provided with tapered external threads, the pipe sections are connected through the threaded inserts, and a sealing layer is provided at the external threads, thereby improving the sealing between the pipe sections and preventing leakage of the medium in the pipe sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other drawings based on the provided drawings without inventive effort.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented. Any structural modifications, changes in proportions, or adjustments in sizes shall remain within the scope of the technical contents disclosed herein without affecting the efficacy and objectives of the present invention.

[0023] Figure 1 This is a schematic structural diagram from a first perspective of an embodiment of the present invention;

[0024] Figure 2 This is a schematic structural diagram from a second perspective of an embodiment of the present utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the AA part;

[0026] Figure 4 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Housing; 2. Ultrasonic sensor mounting hole; 3. Temperature sensor mounting hole; 4. Connection port; 5. Threaded insert; 6. External thread; 7. Slot; 8. Connection part; 9. First O-ring; 10. Limiting steel ring; 11. Metal insert; 111. Annular pipe; 112. Connecting rib; 113. Connection port; 12. Ultrasonic sensor mounting base; 13. Temperature sensor mounting base; 14. Reserved hole; 15. Limiting groove; 16. Second O-ring; 17. Medium flow direction indicator; 18. Reflection column. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0030] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not necessarily need to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0031] In addition, the terms "including", "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization solutions conceived by the present invention.

[0032] like Figure 1-Figure 4 The figure shows a wire-bonded heat-resistant polyethylene ultrasonic thermometer base disclosed in the present invention, comprising a tubular housing 1, two ultrasonic sensor mounting holes 2 spaced apart and connected to the interior of the housing 1, a temperature sensor mounting hole 3 connected to the interior of the housing 1 is provided on one side of the ultrasonic sensor mounting hole 2 located downward in the flow direction of the medium in the housing 1, and a reflective column 18 is provided in the housing 1 at a position corresponding to the ultrasonic sensor mounting hole 2;

[0033] A connection port 4 is provided at each end of the housing 1, and a threaded insert 5 is fixedly connected to the outer side of the connection port 4. The threaded insert 5 is a tapered tubular structure, and the taper of the threaded insert 5 is such that the diameter gradually decreases from one side of the connection port 4 toward the other side. An external thread 6 is provided on the outer peripheral side of the threaded insert 5 along the taper direction, and a sealing layer is provided in the thread groove of the external thread 6 on the outer side of the threaded insert 5.

[0034] The connection ports 4 at both ends of the housing 1 are used to connect to the threaded inserts 5. The connection ports 4 and the housing 1 are both made of heat-resistant polyethylene and are integrally formed with the housing 1. The threaded inserts 5 are fixedly connected to the connection ports 4 and are sealed.

[0035] The threaded insert 5 serves as a connecting structure with other pipe sections. It adopts a tapered pipe. The outer side of the threaded insert 5 has a certain taper, and a tapered external thread 6 structure is provided on the outer side along the taper direction. In this embodiment, the taper of the threaded insert 5 is 0.0625°, and a sealing layer is provided on the external thread 6 structure. When the pipe sections are connected through the threaded insert 5, the sealing layer can seal the gap of the threaded insert 5 to prevent medium leakage; in this embodiment, the sealing layer is a hemp rope or raw tape radially wound around the external thread 6 structure of the threaded insert 5. When the external thread 6 of the threaded insert 5 is connected to the remaining pipes, the hemp rope or raw tape is wrapped around it during installation. The hemp rope or raw tape in the thread groove can have a sealing effect to prevent medium leakage at the connection.

[0036] Furthermore, the specific connection method between the threaded insert 5 and the connection port 4 is as follows: an annular slot 7 is provided at the end of the connection port 4, and an annular connecting portion 8 is provided at the end with a large diameter of the threaded insert 5. The connecting portion 8 is placed in the slot 7, and the inner wall of the slot 7 and the outer wall of the connecting portion 8 are provided with mutually staggered notch structures. The threaded insert 5 is clamped in the slot 7 of the connection port 4 through the connecting portion 8.

[0037] The annular slot 7 is formed on the end face of the connection port 4, and the threaded insert 5 is integrally formed with a cylindrical annular connecting portion 8 having a larger diameter. The connecting portion 8 can be inserted into the slot 7. In order to fix the connecting portion 8 in the slot 7, a tooth-shaped notch structure is provided on the inner side wall (both upper and lower) of the slot 7, and a tooth-shaped notch structure is provided on the inner and outer side faces of the annular connecting portion 8, which is staggered with the tooth-shaped notch structure in the slot 7, so that the connecting portion 8 can be interlocked and fixed with the connection port 4. In addition, the connecting portion 8 and the connection port 4 are integrally cast and formed as a whole.

[0038] In order to further improve the sealing effect, a first O-ring 9 is provided between the connecting portion 8 in the slot 7 and the connecting port 4 .

[0039] In a further embodiment, in order to prevent deformation of the connection port 4 at the position where the wire connector 5 is connected, a limiting steel ring 10 is provided on the outer side of the connection port 4, and the limiting steel ring 10 corresponds to the position of the connection portion 8 in the slot 7 of the connection port 4.

[0040] By arranging the limiting steel ring 10 to be sleeved on the outer side of the connection port 4 , the connection port 4 can be prevented from deforming and affecting the sealing performance.

[0041] In some other embodiments, the shell 1 is made of heat-resistant and corrosion-resistant material, and a metal insert 11 is provided between the inner wall and the outer wall of the shell 1. An ultrasonic sensor mounting seat is provided at a position of the metal insert 11 corresponding to the ultrasonic sensor mounting hole 2 on the shell 1, and a temperature sensor mounting seat 13 is provided at a position of the metal insert 11 corresponding to the temperature sensor mounting hole 3. A reserved hole 14 is provided at a position on the shell 1 corresponding to the reflective column 18, and a limiting groove 15 is provided at a position of the metal insert 11 corresponding to the reserved hole 14 and the reflective column 18 for fixing the reflective column 18.

[0042] The shell 1 is made of heat-resistant and corrosion-resistant material. In this embodiment, the shell 1 is made of heat-resistant polyethylene. The inner wall of the pipe section will not produce scale, will not affect the signal transmission of the heat meter, and has higher measurement accuracy. A metal insert 11 is set in the wall thickness of the shell 1. The metal insert 11 and the shell 1 are made in an integral molding manner. The metal insert 11 is directly molded inside the wall thickness of the shell 1; the metal insert 11 is mainly installed at the position of the two ultrasonic sensors, and an ultrasonic sensor mounting seat 12 and a temperature sensor mounting seat 13 are set on the metal insert 11 to install the ultrasonic sensor and the temperature sensor. At the same time, the metal insert 11 also serves as a fixing structure for the reflective column 18 to fix the reflective column 18. Compared with the conventional metal ultrasonic heat meter base, the present application adopts heat-resistant and corrosion-resistant materials to make the reflective column 18. The reflective column 18 cannot be welded and fixed to the shell 1. Therefore, a reserved hole 14 is opened at the bottom of the shell 1. The depth of the reserved hole 14 is opened to the metal insert 11 within the wall thickness of the shell 1, and a limiting groove 15 is opened on the metal insert 11. The reflective column 18 is inserted into the limiting groove 15 from the reserved hole 14 and fixed. The reflective column 18 and the metal insert 11 can be fixed by welding or other methods.

[0043] In a further embodiment, in order to prevent water seepage between the housing 1 and the metal insert 11 , a second O-ring 16 is provided between the ultrasonic sensor mounting base and the wall of the ultrasonic mounting hole of the housing 1 .

[0044] The housing 1 and the metal insert 11 are sealed.

[0045] Furthermore, the metal insert 11 includes two annular pipes 111, the ultrasonic sensor mounting seat 12 is fixedly connected to the annular pipes 111, and the temperature sensor mounting seat 13 is fixed to one side of one of the annular pipes 111. The two annular pipes 111 are placed inside the housing 1, and the ultrasonic sensor mounting seat 12 corresponds to the ultrasonic sensor mounting hole 2, and the temperature sensor mounting seat 13 corresponds to the temperature sensor mounting hole 3;

[0046] The two annular pipes 111 are fixedly connected through a plurality of connecting ribs 112 arranged in a circumferential array, and a connecting opening 113 is formed between two adjacent connecting ribs 112.

[0047] The metal insert 11 is specifically configured as two annular pipes arranged at positions of the two ultrasonic sensors respectively, and is used for mounting the ultrasonic sensors.

[0048] In addition, in order to improve the tightness of the connection between the metal insert 11 and the shell 1, the connecting ribs 112 are arranged between the two annular pipes 111, the two ends of the connecting rib 112 are connected to the two annular pipes 111, the connecting rib 112 is integrally formed with the annular pipe 111, the connecting rib 112 is arranged in a circumferential array between the annular pipes 111, and the connecting rib 112 is arranged at intervals between two adjacent connecting ribs 112, and a connecting opening 113 is formed in the gap.

[0049] Meanwhile, in order to further improve the tightness of the connection, a stepped notch is arranged at the end of the annular pipe 111.

[0050] The stepped notch structure is arranged at the outer end of the two annular pipes 111, and during the process of integrally forming the shell 1 with the annular pipe 111, the shell 1 and the annular pipe 111 form an interlaced tooth structure, thereby increasing the tightness and stability of the connection.

[0051] The annular groove can also be arranged on the outer side wall of the annular pipe 111.

[0052] The annular groove is recessed inwardly, and during the process of integrally forming the shell 1 with the annular pipe 111, the shell 1 forms a snap ring in the annular groove and is clamped in the groove.

[0053] The outer side wall of the shell 1 is provided with a medium flow direction indication 17.

[0054] The medium flow direction indication 17 is arranged on the outer side wall of the shell 1, which can prompt the user to install the direction during installation and the medium flow direction in the pipe section.

[0055] Compared with the existing heat meter, the utility model has the following advantages:

[0056] 1) The base meter shell is made of heat-resistant polyethylene, and the inner wall of the pipe section will not produce scale, which will not affect the signal transmission of the heat meter, and the measurement accuracy is higher.

[0057] 2) The inner wall of the base meter shell is made of heat-resistant polyethylene material, which is corrosion-resistant and has a longer service life.

[0058] 3) The heat meter base is connected on both sides with conical external threads and radially wrapped hemp rope for sealing. Compared with the existing heat meter base with cylindrical external threads and end face waterline seals, the sealing effect is better.

[0059] 4) All parts can be produced by mold, which has higher production efficiency and lower cost.

[0060] The above specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0061] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0062] The above description of the present invention is relatively specific and detailed through a general explanation and specific embodiments. It should be noted that variations and modifications to these specific embodiments are possible without departing from the spirit of the present invention, and all such variations and modifications fall within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be determined by the appended claims.

Claims

1. A wire-bonded heat-resistant polyethylene ultrasonic thermal meter base, characterized by: The invention comprises a tubular housing, wherein two ultrasonic sensor mounting holes communicating with the interior of the housing are provided on the housing at intervals, a temperature sensor mounting hole communicating with the interior of the housing is provided on one side of the ultrasonic sensor mounting hole located below the flow direction of the medium in the housing, and a reflective column is provided in the housing at a position corresponding to the ultrasonic sensor mounting hole; the invention is characterized in that: A connection port is provided at each end of the shell, and a threaded insert is fixedly connected to the outer side of the connection port. The threaded insert is a tapered tubular structure, and the taper of the threaded insert is such that the diameter gradually decreases from one side connected to the connection port toward the other side. The outer peripheral side of the threaded insert is provided with an external thread along the taper direction, and a sealing layer is provided in the thread groove of the external thread on the outer side of the threaded insert.

2. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 1, characterized in that: An annular slot is provided at the end of the connection port, and an annular connecting portion is provided at one end with a large diameter of the threaded insert. The connecting portion is placed in the slot, and the inner wall of the slot and the outer wall of the connecting portion are provided with interlaced notch structures. The threaded insert is clamped in the slot of the connection port through the connecting portion.

3. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 2, characterized in that: A first O-type sealing ring is provided between one end of the connecting portion placed in the slot and the connecting port.

4. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 1, characterized in that: The connection port is integrally formed with the housing.

5. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 1, characterized in that: A limiting steel ring is sleeved on the outer side of the connection port, and the limiting steel ring corresponds to the position of the connection part in the connection port slot.

6. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 1, characterized in that: The sealing layer is a hemp rope or raw tape wound inside the external thread of the threaded insert.

7. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 1, characterized in that: The shell is made of heat-resistant and corrosion-resistant material, and a metal insert is provided between the inner wall and the outer wall of the shell. An ultrasonic sensor mounting seat is provided at a position of the metal insert corresponding to the ultrasonic sensor mounting hole on the shell, and a temperature sensor mounting seat is provided at a position of the metal insert corresponding to the temperature sensor mounting hole. A reserved hole is opened at a position on the shell corresponding to the reflective column, and a limiting groove is provided at a position of the metal insert corresponding to the reserved hole and the reflective column for fixing the reflective column.

8. The wire-bonded heat-resistant polyethylene ultrasonic thermal meter base according to claim 7, characterized in that: A second O-type sealing ring is provided between the ultrasonic sensor mounting seat and the wall of the ultrasonic mounting hole of the shell.

9. The wire-bonded heat-resistant polyethylene ultrasonic heating base according to claim 1, characterized in that: The shell is made of heat-resistant polyethylene.

10. The wire-bonded heat-resistant polyethylene ultrasonic heating meter base according to claim 7, characterized in that: The metal insert includes two annular pipes, the ultrasonic sensor mounting seat is fixedly connected to the annular pipes, and the temperature sensor mounting seat is fixed to one side of one of the annular pipes. The two annular pipes are placed inside the shell, and the ultrasonic sensor mounting seat corresponds to the ultrasonic sensor mounting hole, and the temperature sensor mounting seat corresponds to the temperature sensor mounting hole. The two annular pipes are connected and fixed by a plurality of connecting ribs distributed in a circumferential array, and a connection port is formed between two adjacent connecting ribs.

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