Household ultrasonic heat meter

Abstract

The utility model relates to the technical field of household heat meters, and discloses a household ultrasonic heat meter which comprises a connecting seat, a heat meter is arranged at the upper end of the connecting seat, a heat meter matching connecting pipe is connected to the middle of one side wall of the connecting seat, and a stainless steel connecting pipe is arranged in the middle of one side wall, right facing the heat meter matching connecting pipe, of the connecting seat. The peripheries of the ends, connected with the connecting seat, of the heat meter matching connecting pipe and the stainless steel connecting pipe are connected with loose joint nuts through threads. By arranging the return water temperature sensor and the inlet water temperature sensor, the water flow temperature in the pipeline system can be comprehensively monitored, and the monitoring accuracy of the heat meter is ensured; the heat meter structure has no dirt deposition dead angle, is not interfered and influenced by medium impurities, chemical substances and magnetic substances, can be suitable for various water quality and heat meter measurement structure moving parts, does not generate abrasion, and has very long service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of household heat meters, in particular to a household ultrasonic heat meter. Background Art

[0002] A heat meter is an instrument used to measure and display the heat energy released or absorbed by water flowing through a heat exchange system. When water flows through a heat meter installed in a heat exchange system, the heat meter monitors the temperature and flow rate of the water flowing through it, and the heat energy released or absorbed by the system can be displayed through a calculator.

[0003] However, the existing household heat meters use a single temperature monitoring sensor for monitoring, which is not comprehensive and accurate enough. The heat meter structure also has blind spots, which are prone to sediment deposition and difficult to maintain and clean, which will affect the service life. For this reason, a household ultrasonic heat meter is proposed here. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a household ultrasonic heat meter, which effectively solves the problems existing in the existing household heat meters.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a household ultrasonic heat meter, comprising a connecting seat, a heat meter is arranged on the upper end of the connecting seat, a heat meter matching pipe is connected to the middle of one side wall of the connecting seat, a stainless steel pipe is arranged in the middle of one side wall of the connecting seat opposite to the heat meter matching pipe, the heat meter matching pipe and the outer periphery of one end of the stainless steel pipe connected to the connecting seat are both connected with a union nut through threads, a first straight pipe section is arranged at one end of the heat meter matching pipe away from the connecting seat, a second straight pipe section is arranged at one end of the stainless steel pipe away from the connecting seat, a filter is arranged at one end of the second straight pipe section away from the stainless steel pipe, a valve is connected to the upper end of the pipe head connected to the filter through a flange, a return water temperature sensor and an inlet water temperature sensor are arranged on one side wall of the heat meter, and a temperature measuring ball valve is arranged at the periphery of the return water temperature sensor.

[0006] Preferably, the lower end of the heat meter is connected to the upper end of the connecting seat by bolts, the inlet water temperature sensor and the return water temperature sensor of the heat meter are provided with paired flow sensors, the matching pipe of the heat meter is connected to the connecting seat by the union nut, the heat meter structure has no dead corners for dirt deposition, is not affected by medium impurities, chemicals and magnetic substances, and can be applied to various water qualities, the moving parts of the heat meter measurement structure will not produce wear and have a very long service life, the heat meter is equipped with a built-in calculator, which can receive signals from the inlet water temperature sensor, the return water temperature sensor and the paired flow sensor, calculate heat or cold, store and realize the heat value exchanged by the system, and the first straight pipe section is connected to the matching pipe of the heat meter by threads.

[0007] Preferably, the stainless steel pipe is connected to the connecting seat via the union nut, and the second straight pipe section is connected to the stainless steel pipe via threads. The union nut enables the stainless steel pipe and the matching pipe of the heat meter to be more conveniently connected to the connecting seat.

[0008] Preferably, the filter is connected to the second straight pipe section via threads, and the filter can filter water entering the heat meter connecting pipeline.

[0009] Preferably, the return water temperature sensor and the inlet water temperature sensor are both connected to the side wall of the heat meter via a wire, and the return water temperature sensor and the inlet water temperature sensor can both measure the temperature of water in their corresponding pipelines.

[0010] Preferably, the water inlet temperature sensor is connected to the side wall of the connecting seat via threads.

[0011] Preferably, the return water temperature sensor is connected to the lower end of the temperature measuring ball valve via a thread. Figure 3 As shown in the schematic diagram of the heat meter installation position, M-1 and M-2 in the figure show the correct installation method (M-1 is horizontally installed and M-2 is vertically installed). The heat meter is installed at the bottom of the pipeline. There is back pressure at the rear end of the heat meter, and no bubbles will be generated to affect the measurement accuracy; M-3 and M-4 in the figure show incorrect installation methods. The M-3 installation method is prone to accumulate bubbles, affecting the measurement accuracy. Although M-4 is a vertical installation method, there is no back pressure at the rear end of the meter, which may cause the fluid to not completely fill the pipeline, affecting the measurement accuracy.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In this household ultrasonic heat meter, by setting the return water temperature sensor and the inlet water temperature sensor, the water flow temperature in the pipeline system can be fully monitored to ensure the accuracy of the heat meter monitoring; there are no dead corners for dirt deposition on the heat meter structure, and it is not affected by the interference of medium impurities, chemical substances and magnetic substances. It can be applied to various water qualities. The moving parts of the heat meter measurement structure will not produce wear and have a long service life; the heat meter has a built-in calculator that can receive signals from the inlet water temperature sensor, the return water temperature sensor and the paired flow sensor to calculate heat or cold, store and realize the heat value exchanged by the system, and can also perform error self-detection and alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the heat meter of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation position of the heat meter of the utility model;

[0018] Figure 4 This is a temperature measurement circuit diagram of a heat meter of the utility model;

[0019] Figure 5 This is the MCU control circuit diagram of the heat meter of the utility model;

[0020] Figure 6 This is the ultrasonic measurement circuit diagram of the heat meter of the utility model;

[0021] Figure 7 This is the power supply and monitoring circuit diagram of the heat meter of the utility model;

[0022] Figure 8 This is the infrared communication circuit diagram of the heat meter of the utility model;

[0023] Fig. 9 This is a circuit diagram of the display part of the heat meter of the utility model;

[0024] In the figure: 1. Connecting socket; 2. Heat meter; 3. Matching pipe for heat meter; 4. Stainless steel pipe; 5. Union nut; 6. First straight pipe section; 7. Second straight pipe section; 8. Filter; 9. Valve; 10. Return water temperature sensor; 11. Inlet water temperature sensor; 12. Temperature measuring ball valve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] In this embodiment, Figure 1-9 The utility model includes a connecting seat 1, a heat meter 2 is arranged on the upper end of the connecting seat 1, a heat meter matching pipe 3 is connected to the middle of one side wall of the connecting seat 1, a stainless steel pipe 4 is arranged in the middle of one side wall of the connecting seat 1 opposite to the heat meter matching pipe 3, the heat meter matching pipe 3 and the stainless steel pipe 4 are connected to the connecting seat 1 at one end thereof with a union nut 5 through a threaded connection, a first straight pipe section 6 is arranged at the end of the heat meter matching pipe 3 away from the connecting seat 1, a second straight pipe section 7 is arranged at the end of the stainless steel pipe 4 away from the connecting seat 1, a filter 8 is arranged at the end of the second straight pipe section 7 away from the stainless steel pipe 4, a valve 9 is connected to the upper end of the pipe head connected to the filter 8 through a flange, a return water temperature sensor 10 and a water inlet temperature sensor 11 are arranged on one side wall of the heat meter 2, and a temperature measuring ball valve 12 is arranged at the periphery of the return water temperature sensor 10.

[0027] Among them, the lower end of the heat meter 2 is connected to the upper end of the connecting seat 1 by bolts, the inlet water temperature sensor 11 and the return water temperature sensor 10 of the heat meter 2 are provided with paired flow sensors, the heat meter matching pipe 3 is connected to the connecting seat 1 by a union nut 5, the heat meter 2 structure has no dead corners for dirt deposition, is not affected by medium impurities, chemical substances and magnetic substances, and can be applied to various water qualities, the heat meter 2 measures the moving parts of the structure, does not produce wear, and has a very long service life, the heat meter 2 has a built-in calculator, which can receive signals from the inlet water temperature sensor 11, the return water temperature sensor 10 and the paired flow sensor, calculate heat or cold, store and realize the heat value exchanged by the system, and can also perform error self-checking and alarm, the first straight pipe section 6 is connected to the matching pipe 3 of the heat meter by threads.

[0028] The heat meter 2 has a built-in high-energy lithium battery and has power-off protection and data storage functions. It can continuously store the historical records of the previous 18 months. After a power outage, it can save the heat, cumulative flow and corresponding time recorded before the power outage. After the power is restored, the metering function will be automatically restored to ensure the continuation of the power outage time. It is standardly equipped with infrared plus M-Bus remote communication, and infrared plus, RS485, infrared plus NB-I oT and infrared home LORA communication solutions can also be customized according to needs.

[0029] Among them, the stainless steel pipe 4 is connected to the connecting seat 1 through a union nut 5, the second straight pipe section 7 is connected to the stainless steel pipe 4 through a threaded connection, the union nut 5 can make the stainless steel pipe 4 and the heat meter matching pipe 3 more conveniently connected to the connecting seat 1, the filter 8 is connected to the second straight pipe section 7 through a threaded connection, the filter 8 can filter the water entering the connecting pipeline of the heat meter 2, the return water temperature sensor 10 and the inlet water temperature sensor 11 are both connected to the side wall of the heat meter 2 through a wire, and the return water temperature sensor 10 and the inlet water temperature sensor 11 can both measure the temperature of the water in their corresponding pipelines.

[0030] The inlet water temperature sensor 11 is connected to the side wall of the connection seat 1 through a thread, and the return water temperature sensor 10 is connected to the lower end of the temperature measuring ball valve 12 through a thread. Figure 3 As shown in the schematic diagram of the heat meter installation position, M-1 and M-2 in the figure show the correct installation methods. M-1 is horizontally installed and M-2 is vertically installed. The heat meter is installed below the pipe. There is back pressure at the rear end of the heat meter, and no bubbles will be generated to affect the measurement accuracy. M-3 and M-4 in the figure show incorrect installation methods. The M-3 installation method is prone to accumulate bubbles, affecting the measurement accuracy. Although M-4 is a vertical installation method, there is no back pressure at the rear end of the meter, which may cause the fluid to not completely fill the pipe, affecting the measurement accuracy.

[0031] Working principle: The return water temperature sensor 10 and the inlet water temperature sensor 11 can both measure the temperature of the water in their corresponding pipelines, that is, monitor the return water temperature and the inlet water temperature. The heat meter 2 has a built-in calculator that can receive signals from the inlet water temperature sensor 11, the return water temperature sensor 10 and the paired flow sensor, calculate the heat or cold, store the heat value exchanged with the actual system, and perform error self-checks and alarms. The heat meter 2 has a built-in high-energy lithium battery with power-off protection and data storage functions. It can continuously store historical records for the previous 18 months. After a power outage, it can save the heat, accumulated flow and corresponding time recorded before the power outage. After the power is restored, the metering function is automatically restored to ensure the continuation of the power outage time.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A household ultrasonic heat meter, comprising a connection socket (1), characterized in that: A heat meter (2) is arranged at the upper end of the connection seat (1), a heat meter matching pipe (3) is connected to the middle of one side wall of the connection seat (1), a stainless steel pipe (4) is arranged at the middle of one side wall of the connection seat (1) facing the heat meter matching pipe (3), the outer peripheries of the heat meter matching pipe (3) and the end of the stainless steel pipe (4) connected to the connection seat (1) are both threadedly connected with a union nut (5), a first straight pipe section (6) is arranged at the end of the heat meter matching pipe (3) away from the connection seat (1), a second straight pipe section (7) is arranged at the end of the stainless steel pipe (4) away from the connection seat (1), a filter (8) is arranged at the end of the second straight pipe section (7) away from the stainless steel pipe (4), a valve (9) is connected to the upper end of the pipe head connected to the filter (8) via a flange, a return water temperature sensor (10) and a water inlet temperature sensor (11) are arranged on one side wall of the heat meter (2), and a temperature measuring ball valve (12) is arranged at the outer periphery of the return water temperature sensor (10).

2. A household ultrasonic heat meter according to claim 1, characterized in that: The lower end of the heat meter (2) is connected to the upper end of the connecting seat (1) by means of bolts, the heat meter matching connecting pipe (3) is connected to the connecting seat (1) by means of the union nut (5), and the first straight pipe section (6) is connected to the heat meter matching connecting pipe (3) by means of threads.

3. A household ultrasonic heat meter according to claim 1, characterized in that: The stainless steel pipe (4) is connected to the connecting seat (1) via the union nut (5), and the second straight pipe section (7) is connected to the stainless steel pipe (4) via threads.

4. A household ultrasonic heat meter according to claim 1, characterized in that: The filter (8) is connected to the second straight pipe section (7) via threads.

5. A household ultrasonic heat meter according to claim 1, characterized in that: The return water temperature sensor (10) and the inlet water temperature sensor (11) are both connected to the side wall of the heat meter (2) via wires.

6. A household ultrasonic heat meter according to claim 1, characterized in that: The water inlet temperature sensor (11) is connected to the side wall of the connection seat (1) via threads.

7. A household ultrasonic heat meter according to claim 1, characterized in that: The return water temperature sensor (10) is connected to the lower end of the temperature measuring ball valve (12) via threads.

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