Light-transmitting heat preservation device based on low-light power generation intelligent water meter and heat preservation method of light-transmitting heat preservation device

Abstract

The intelligent water meter light-transmitting heat preservation device comprises a heat preservation shell and a water meter body fixedly installed at the lower end in the heat preservation shell, a water inlet pipe and a water outlet pipe are fixedly installed on the side face of the water meter body, and the water inlet pipe and the water outlet pipe are in threaded connection with a water conveying pipeline; the heat preservation shell is divided into a first shell body and a second shell body, and the first shell body and the second shell body are fixedly installed through a buckle. And plano-convex glass for light condensation is mounted above the second shell. According to the intelligent water meter light-transmitting heat preservation device based on low-light power generation and the heat preservation method of the intelligent water meter light-transmitting heat preservation device, a novel structural design is adopted, the water meter body is installed in the heat preservation shell, the heat preservation shell is used for protecting the water meter body, a heat insulation layer is not arranged in the heat preservation shell, and heat preservation is conducted on the interior of the heat preservation shell through the heat insulation layer; faults caused by over-low temperature of the water meter main body and the lithium battery in alpine regions are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent water meter heat preservation, and particularly to a light-emitting power generation-based intelligent water meter light-transmitting heat preservation device and a heat preservation method thereof. Background Art

[0002] An intelligent water meter is a modern instrument mainly used for real-time monitoring and management of water usage. Compared with traditional water meters, intelligent water meters use more electronic components and can achieve functions such as remote control and real-time data uploading.

[0003] In the prior art, a Chinese patent with the application number CN201610751398.1 discloses an intelligent remote transmission water meter, which includes a base meter. A first housing containing a measurement component is provided on the base meter. It is characterized in that: a detachable second housing is provided above the first housing. An installation cavity is provided in the second housing. An installation substrate is slidably fitted in the installation cavity. An opening for inserting the installation substrate into the installation cavity is provided on the side wall of the second housing. A main board is provided on the installation substrate, and a signal transmitter is provided on the main board. A signal receiver is provided outside the second housing, and the signal receiver is provided with a USB interface connected to an external display device.

[0004] Again, in the prior art, a Chinese patent with the application number CN201910599490.4 discloses a multi-functional Internet of Things intelligent water meter, which includes a water meter component, an intelligent control component, and a support component. The water meter component includes a pipeline, a water meter body, a cover plate, a branch pipe, a TDS water quality detector, and a heating plate. The intelligent control component includes a cover body, a partition board, a controller, a wireless module, and a temperature sensor. By providing a branch pipe for leading out the water in the pipeline and a TDS water quality detector for detecting water quality, the water quality in the pipeline can be detected in real time. By providing a temperature sensor for detecting the ambient temperature outside the water meter body and a heating plate for heating, the heating plate is controlled by a controller. When the temperature value is lower than a first preset temperature value, the controller turns on the heating plate. When the temperature value is higher than a second preset temperature value, the controller turns off the heating plate.

[0005] Again, in the prior art, a Chinese patent with the application number CN201710614321.4 discloses an intelligent management system for a water meter, which includes a water meter management module, a pressure module, a conversion unit, a status detection module, a communication module, a human-machine interface, and a display module; the pressure module and the status detection module are electrically connected to the water meter management module through the numerical conversion unit, the communication module is electrically connected to the human-machine interface and the water meter management module, and the display module is electrically connected to the water meter management module.

[0006] Combined with the above materials, it can be known that intelligent water meters in the prior art generally need to be used in connection with the network, so they need to be powered by batteries inside. However, in the actual use process, in the face of alpine regions (such as the north in winter and plateau regions, etc.), low temperature will affect the battery's power efficiency, so failures often occur due to insufficient battery power supply. Summary of the Invention

[0007] The purpose of the present invention is to provide a light-emitting power generation-based intelligent water meter light-transmitting heat preservation device and its heat preservation method to solve the problem of low temperature affecting the normal use of the battery proposed in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solutions: A light-emitting power generation-based intelligent water meter light-transmitting heat preservation device and its heat preservation method, including a heat preservation housing and a water meter main body fixedly installed at the lower end inside the heat preservation housing. The water meter main body is fixedly installed with a water inlet pipe and a water outlet pipe on the side, and the water inlet pipe and the water outlet pipe are threadedly connected to the water conveyance pipeline; the heat preservation housing is divided into two parts, a first housing and a second housing, and the first housing and the second housing are fixedly installed by a buckle; a plano-convex glass for condensing light is installed above the second housing, and the plano-convex glass is press-fitted with the second housing through a fixed pressing plate, and a photoelectric conversion device is fixedly installed inside the second housing; the inner wall of the heat preservation housing is filled with a heat insulation and heat preservation layer by fitting.

[0009] Preferably, a horizontally arranged partition plate is fixedly installed at the middle position inside the first housing, and a lithium battery is fixedly installed on the upper surface of the partition plate.

[0010] Preferably, the charging end of the lithium battery is connected to the photoelectric conversion device through a first connecting wire, and the power supply end of the lithium battery is connected to the water meter main body through a second connecting wire.

[0011] Preferably, a reflective film is fixedly pasted inside the second housing, and the reflective film is located above the photoelectric conversion device.

[0012] Preferably, a protective pad is fixedly installed inside the upper end of the first housing, and the position of the protective pad corresponds to the position of the lithium battery, and the protective pad is made of fireproof foam material.

[0013] Preferably, the plano-convex glass is of an upper-flat and lower-convex structure, and the convex surface of the plano-convex glass is a double-layer transparent vacuum glass.

[0014] Preferably, the positional relationship between the plano-convex glass and the photoelectric conversion device satisfies:

[0015] When the inclination angle of the incident light is the largest, the photoelectric conversion device is located inside the cone formed by the oblique focus and the incident circle of the light on the plano-convex glass.

[0016] Preferably, the heat preservation housing is arranged in a parabolic streamline structure, and ribs protruding inwards are arranged inside the heat preservation housing, and the ribs are covered by the heat insulation and preservation layer after being poured.

[0017] Preferably, the thickness of the heat insulation and preservation layer meets the following requirements:

[0018] δ = R·C m / A S

[0019] where R is the heat resistance of the material, Cm is the volume of the heat preservation structure, and As is the surface area of the heat preservation structure;

[0020] In actual application, when the heat preservation housing is approximated as a cylindrical shape, the following calculation is based on heat balance:

[0021]

[0022] Where:

[0023] D1 - Outer diameter of the heat insulation layer, m

[0024] D0 - Outer diameter of the pipeline or equipment, m

[0025] λ - Thermal conductivity of the heat preservation material [W / (m·°C)]

[0026] T0 - Outer surface temperature of the pipe protection or equipment, °C

[0027] Ta - Ambient temperature, °C

[0028] [Q] - Maximum allowable heat loss in square meters, W / m2

[0029] [q] - Maximum allowable heat loss in meters of pipe length

[0030] As - Heat transfer coefficient of the external environment

[0031] αs - Heat transfer coefficient of the external environment

[0032] W - Annual average wind speed, m / s

[0033] The thickness of the heat preservation layer is:

[0034] Preferably, a heat preservation method for a light-emitting power generation intelligent water meter light-transmitting heat preservation device includes the following steps:

[0035] S1. Fix the water meter main body inside the heat preservation housing, then connect the water inlet pipe and the water outlet pipe to the underground water conveyance pipeline, and finally bury the lower half of the heat preservation housing underground;

[0036] S2. When light shines on the plano-convex glass, the convex lens structure below the plano-convex glass refracts the light so that the light is concentrated at a certain position. At this time, the optoelectronic conversion device is within the range where the light is concentrated, and thus the optoelectronic conversion device is used to generate electricity. The electric energy is transmitted to the lithium battery through the first connecting wire for storage;

[0037] S3. The heat insulation and preservation layer poured on the inner wall of the heat preservation shell is used to keep the inside of the shell warm, so as to avoid the low temperature affecting the electrical efficiency of the lithium battery.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows: The light-transmitting and heat-preserving device for intelligent water meters based on low-light power generation and its heat-preserving method adopt a new structural design, and the specific content is as follows:

[0039] 1. Install the water meter main body inside the heat preservation shell, use the heat preservation shell to protect the water meter main body, and set a heat insulation and preservation layer inside the heat preservation shell. The heat insulation and preservation layer is used to keep the inside of the heat preservation shell warm, so as to avoid the water meter main body and the lithium battery malfunction due to too low temperature in alpine regions;

[0040] Furthermore, the lithium battery is used to supply power to the water meter main body, and a protective pad is arranged inside the first shell. The protective pad is used to squeeze the lithium battery to limit the lithium battery, so as to avoid the lithium battery being deformed and damaged by pressure.

[0041] 2. External light (direct sunlight or low light) shines on the plano-convex glass, and the convex lens structure below the plano-convex glass refracts the light, concentrating the light in a certain area. At the same time, the optoelectronic conversion device is located in this area, so that the optoelectronic conversion device converts light energy into electrical energy and transmits it to the lithium battery to maintain the electrical energy reserve in the lithium battery, and avoid the lithium battery malfunction caused by the rapid loss of electrical energy at low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the internal structure of the second shell of the present invention;

[0044] Figure 3 It is a schematic diagram of the internal structure of the first shell of the present invention;

[0045] Figure 4 It is a schematic diagram of the installation position structure of the protective pad of the present invention;

[0046] Figure 5 It is a schematic diagram of the heat insulation and preservation layer structure of the present invention;

[0047] Figure 6 It is a schematic diagram of the light refraction structure of the present invention.

[0048] In the figure: 1. Thermal insulation housing; 101. First housing; 102. Second housing; 2. Water meter main body; 3. Inlet pipe; 4. Outlet pipe; 5. Planoconvex glass; 6. Fixed pressing plate; 7. Photoelectric conversion device; 8. Partition plate; 9. Lithium battery; 10. First connecting wire; 11. Reflective film; 12. Second connecting wire; 13. Protective pad; 14. Heat insulation and thermal insulation layer. Specific embodiments

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] Embodiment 1: Please refer to Figure 1 and Figure 5 , for the purpose of achieving thermal insulation in this embodiment, the following technical solutions are provided, and specifically disclosed are: a thermal insulation housing 1 and a water meter main body 2 fixedly installed at the lower end inside the thermal insulation housing 1. An inlet pipe 3 and an outlet pipe 4 are fixedly installed on the side of the water meter main body 2. The inlet pipe 3 and the outlet pipe 4 are threadedly connected to the water conveyance pipeline. The thermal insulation housing 1 is divided into two parts, a first housing 101 and a second housing 102, and the first housing 101 and the second housing 102 are fixedly installed by means of a buckle; a heat insulation and thermal insulation layer 14 is poured and adhered to the inner wall of the thermal insulation housing 1. The thermal insulation housing 1 is set as a parabolic streamline structure, and there are inwardly protruding rib plates inside the thermal insulation housing 1, and the rib plates are covered by the poured heat insulation and thermal insulation layer 14.

[0051] The thickness of the heat insulation and thermal insulation layer 14 meets the following requirements:

[0052] δ = R·C m / A S

[0053] where R is the heat resistance of the material, Cm is the volume of the thermal insulation structure, and As is the surface area of the thermal insulation structure;

[0054] In actual application, when the thermal insulation housing 1 is approximated as a cylindrical shape, the following calculation is carried out based on heat balance:

[0055]

[0056] Among them:

[0057] D1 - Outer diameter of the single-layer heat insulation layer m

[0058] D0 - Outer diameter of the pipeline or equipment m

[0059] λ - Thermal conductivity of the thermal insulation material [W / (m.℃)

[0060] T0 - Pipe protection or outer surface temperature of the equipment, °C

[0061] Ta - Local annual average temperature during operation of the ambient temperature, °C

[0062] [Q] - Maximum allowable heat loss measured in square meters, W / m2

[0063] [q] - Maximum allowable heat loss measured in meters of pipe length

[0064] As - Heat transfer coefficient of the external environment

[0065] αs - Heat transfer coefficient of the external environment

[0066] W - Annual average wind speed, m / s

[0067] The thickness of the thermal insulation layer is:

[0068] Fix the water meter main body 2 at the bottom inside the first housing 101. Then thread-connect the water inlet pipe 3 and the water outlet pipe 4 that penetrate through the first housing 101 to the underground water conveyance pipeline (especially in alpine regions), connect the water meter main body 2 to the water circuit. Then bury the lower half of the thermal insulation housing 1 underground (exposing the plano-convex glass 5). Then use the water meter main body 2 to detect the water flow rate, and transmit the detected data to the terminal computer through the network signal. During the actual use process, use the heat insulation layer 14 poured on the inner wall of the first housing 101 for internal heat insulation (the heat insulation layer 14 is arranged on the inner side and the inner bottom surface of the first housing 101) to prevent the internal temperature from being too low and affecting the normal use of the water meter main body 2.

[0069] Example Two: Please refer to Figures 2 - 4 and Figure 6In order to achieve the purpose of generating electricity and maintaining the electric energy reserve of the lithium battery 9, the present embodiment provides the following technical solutions, which specifically disclose: a plano-convex glass 5 for focusing light is installed above the second shell 102, and the plano-convex glass 5 is pressed and connected to the second shell 102 through a fixed pressing plate 6, and a photoelectric conversion device 7 is fixedly installed inside the second shell 102; a transversely arranged partition plate 8 is fixedly installed in the middle position inside the first shell 101, and a lithium battery 9 is fixedly installed on the upper surface of the partition plate 8, the charging end of the lithium battery 9 is connected to the photoelectric conversion device 7 through a first connecting line 10, and the power supply end of the lithium battery 9 is connected through a second connecting line 12 It is connected to the water meter body 2, and a reflective film 11 is fixedly adhered inside the second shell 102, and the reflective film 11 is located above the photoelectric conversion device 7. A protective pad 13 is fixedly installed inside the upper end of the first shell 101, and the position of the protective pad 13 corresponds to the position of the lithium battery 9, and the protective pad 13 is set to a fire-proof foam material, the plano-convex glass 5 is set to an upper flat and lower convex structure, and the convex surface of the plano-convex glass 5 is set to a double-layer transparent vacuum glass, and the positional relationship between the plano-convex glass 5 and the photoelectric conversion device 7 satisfies: when the inclination angle of the incident light is maximum, the photoelectric conversion device 7 is located in the cone formed by the oblique focus and the incident circle of the light on the plano-convex glass 5.

[0070] When external sunlight or dim light shines on the plano-convex glass 5, the convex mirror structure below the plano-convex glass 5 refracts the light and concentrates the light into a certain area inside the second shell 102. A photoelectric conversion device 7 is arranged in the area to convert light energy into electrical energy (at the same time, the reflective film 11 inside the second shell 102 is used to reflect the internal light to improve the utilization rate of the light). The converted electrical energy is transmitted to the lithium battery 9 through the first connecting line 10 to charge the lithium battery 9 (the lithium battery 9 uses the second connecting line 12 to power the water meter body 2, and the protective pad 13 inside the second shell 102 squeezes and protects the lithium battery 9), thereby ensuring that the lithium battery 9 has sufficient power reserve to avoid insufficient power supply due to low temperature.

[0071] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0072] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light-emitting power generation-based intelligent water meter light-transmitting and heat-preserving device, comprising a heat-preserving housing (1) and a water meter main body (2) fixedly installed at the lower end inside the heat-preserving housing (1), characterized in that, It also includes: The water meter main body (2) is fixedly installed with a water inlet pipe (3) and a water outlet pipe (4) on the side, and the water inlet pipe (3) and the water outlet pipe (4) are threadedly connected to the water transmission pipeline; The heat preservation housing (1) is divided into two parts, a first housing (101) and a second housing (102), and the first housing (101) and the second housing (102) are fixedly installed by means of buckles; Above the second housing (102), a plano-convex glass (5) for condensing light is installed, and the plano-convex glass (5) is press-fitted and connected to the second housing (102) through a fixed pressing plate (6), and a photoelectric conversion device (7) is fixedly installed inside the second housing (102); The inner wall of the heat preservation housing (1) is closely filled with a heat insulation layer (14).

2. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 1, wherein: In the middle position inside the first housing (101), a horizontally arranged partition plate (8) is fixedly installed, and a lithium battery (9) is fixedly installed on the upper surface of the partition plate (8).

3. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 2, wherein: The charging end of the lithium battery (9) is connected to the photoelectric conversion device (7) through a first connecting wire (10), and the power supply end of the lithium battery (9) is connected to the water meter main body (2) through a second connecting wire (12).

4. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 1, characterized in that: A reflective film (11) is fixedly pasted inside the second housing (102), and the reflective film (11) is located above the photoelectric conversion device (7).

5. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 1, wherein: A protective pad (13) is fixedly installed inside the upper end of the first housing (101), and the position of the protective pad (13) corresponds to the position of the lithium battery (9), and the protective pad (13) is made of fireproof foam material.

6. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 1, characterized in that: The plano-convex glass (5) is of an upper flat and lower convex structure, and the convex surface of the plano-convex glass (5) is a double-layer transparent vacuum glass.

7. An intelligent water meter light-transmitting and heat-insulating device based on low-light power generation according to claim 6, characterized in that: The positional relationship between the plano-convex glass (5) and the photoelectric conversion device (7) satisfies: When the inclination angle of the incident light is the largest, the photoelectric conversion device (7) is located within the cone formed by the oblique focus and the incident circle of the light on the plano-convex glass (5).

8. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 1, wherein: The heat preservation housing (1) is of a parabolic streamline structure, and there are inwardly protruding rib plates inside the heat preservation housing (1), and the rib plates are covered by the heat insulation layer (14) after being filled.

9. The light-transmitting and heat-insulating device for a micro-light power generation intelligent water meter according to claim 8, wherein: The thickness of the heat insulation layer (14) meets the following requirements: δ = R·C m / A S Where R is the heat resistance of the material, Cm is the volume of the heat preservation structure, and As is the surface area of the heat preservation structure; In actual application, when the heat preservation housing (1) is approximately cylindrical, the following calculation is based on heat balance: Where: D1 - Outer diameter of the insulation layer (single layer) m D0 - Outer diameter of the pipeline or equipment m λ - Thermal conductivity of the heat preservation material [W / (m·°C)] T0 - Outer surface temperature of the pipe or equipment °C Ta - Ambient temperature (annual average value in the local area during operation) °C [Q] - Maximum allowable heat loss in square meters W / m2 [q] - Maximum allowable heat loss in meters of pipe length As - Heat transfer coefficient of the external environment αs - Heat transfer coefficient of the external environment W - Annual average wind speed m / s The thickness of the thermal insulation layer is:

10. A heat preservation method for implementing the heat preservation device of the intelligent water meter with light-emitting power generation based on low-light described in claim 1, characterized in that, It includes the following steps: S1. Fix and install the water meter main body (2) inside the heat preservation housing (1), then connect the water inlet pipe (3) and the water outlet pipe (4) to the underground water conveyance pipeline, and finally bury the lower half of the heat preservation housing (1) underground; S2. When light shines on the plano-convex glass (5), use the convex mirror structure below the plano-convex glass (5) to refract the light so that the light is concentrated at a certain position. At this time, the photoelectric conversion device (7) is located within the range where the light is concentrated, thereby generating electricity using the photoelectric conversion device (7), and the electric energy is transmitted to the lithium battery (9) through the first connecting wire (10) for storage; S3. Use the heat insulation and preservation layer (14) poured on the inner wall of the heat preservation housing (1) to insulate the inside thereof, so as to avoid the low temperature from affecting the electrical efficiency of the lithium battery (9).

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