A system and method for detecting temperature field distribution in a hot water storage tank

Abstract

The present invention relates to the technical field of hot water storage tanks, and in particular to a temperature field distribution detection system and method for hot water storage tanks. The temperature field distribution detection system for hot water storage tanks includes a hot water storage tank body, a top cover, a soil coupling temperature detection system, and a water body temperature detection system. The hot water storage tank body includes a water pool slope and a water pool bottom. The soil coupling temperature detection system includes a plurality of rows of first temperature detection elements arranged on the water pool slope and a plurality of second temperature detection elements arranged on the water pool bottom. The water body temperature detection system includes a plurality of water body temperature detection devices arranged in the hot water storage tank body. The temperature field distribution detection system and method for hot water storage tanks provided by the present invention can realize the collection of temperature change and temperature stratification data of the temperature field after the hot water storage tank is coupled with the soil, and provide data basis for the application of water in different temperature layers.

Description

Technical Field

[0001] The present invention relates to the technical field of hot water storage tanks, and in particular to a temperature field distribution detection system and method for hot water storage tanks. Background Art

[0002] Large-volume water pool heat storage technology is a sensible heat storage technology that achieves the purpose of energy storage by increasing the temperature of the water body in the artificial water pool. It has the advantages of low cost, fast heat storage and heat release rate, low heat loss coefficient, and the ability to store heat energy across seasons. It can be combined with a variety of renewable energy technologies such as solar collectors, wind power, photovoltaics, heat pumps, and cogeneration units to fully improve energy utilization and the proportion of renewable energy, and achieve the goal of clean energy regional heating. In order to facilitate the control and adjustment of the temperature of the hot water storage tank, the temperature of the hot water storage tank needs to be detected and collected. However, the existing method for detecting the temperature of the hot water storage tank is only to set a temperature sensor in the water body of the hot water storage tank. This detection method cannot comprehensively obtain the overall temperature field distribution data of the hot water storage tank, especially the temperature change and temperature stratification data of the overall temperature field after the hot water storage tank is coupled with the soil. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The object of the present invention is to provide a temperature field distribution detection system and method for a hot water storage tank, so as to solve the problem that the prior art cannot obtain the temperature change and temperature stratification data of the overall temperature field after the hot water storage tank is coupled with the soil.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a temperature field distribution detection system for a hot water storage tank, comprising a hot water storage tank body, a top cover arranged at the opening of the hot water storage tank body, a soil coupling temperature detection system and a water body temperature detection system; the hot water storage tank body comprises a pool slope and a pool bottom; the soil coupling temperature detection system comprises a plurality of rows of first temperature detection elements arranged on the pool slope and a plurality of second temperature detection elements arranged on the pool bottom, wherein the first temperature detection elements in each row are arranged in sequence from high to low; the water body temperature detection system comprises a plurality of water body temperature detection devices arranged in the hot water storage tank body, each of the water body temperature detection devices comprises a plurality of third temperature detection elements arranged in sequence from high to low, a gap is arranged between the bottom end of each of the water body temperature detection devices and the pool bottom, and the top end of each of the water body temperature detection devices passes through the top cover and is arranged outside the hot water storage tank body.

[0007] Furthermore, a waterproof barrier layer is laid on the soil surface of the hot water storage tank body, and each of the first temperature detection elements and each of the second temperature detection elements are arranged between the soil surface and the waterproof barrier layer.

[0008] Furthermore, the top cover includes a heat-insulating cover and a waterproof spacer layer which are sequentially arranged from top to bottom.

[0009] Furthermore, the water temperature detection device includes a vertical tube and a plurality of detection ports arranged on the vertical tube, the plurality of detection ports are arranged in sequence from top to bottom, the number of the detection ports is equal to the number of the third temperature detection elements, and each of the third temperature detection elements is respectively installed in each of the detection ports.

[0010] Specifically, the water temperature detection device also includes a clamping piece arranged on the upper surface of the thermal insulation cover, and the top end of the vertical pipe passes through the waterproof spacing layer and the thermal insulation cover in sequence and is connected to the clamping piece.

[0011] Specifically, each detection port is provided with a waterproof sealing film.

[0012] Furthermore, it also includes a temperature data recorder, each of the first temperature detection elements is connected to the temperature data recorder via a first data transmission line, each of the second temperature detection elements is connected to the temperature data recorder via a second data transmission line, and each of the third temperature detection elements is connected to the temperature data recorder via a third data transmission line.

[0013] Specifically, the third data transmission line is arranged in the vertical tube.

[0014] In order to solve the above technical problems, the present invention also provides a method for detecting the temperature field distribution of a hot water storage tank. The method adopts the above-mentioned temperature field distribution detection system of the hot water storage tank. The method specifically comprises the following steps:

[0015] S1. Arrange a plurality of rows of first temperature detection elements and a plurality of second temperature detection elements on the soil surface of the hot water storage tank body, so that the first temperature detection elements in each row are arranged in sequence from high to low along the slope of the hot water storage tank body, and each second temperature detection element is arranged on the bottom surface of the hot water storage tank body;

[0016] S2, connecting each of the first temperature detection elements to a temperature data recorder through a first data transmission line, and connecting each of the second temperature detection elements to the temperature data recorder through a second data transmission line;

[0017] S3, laying a waterproof barrier layer on the hot water storage tank body, so that each of the first temperature detection elements and each of the second temperature detection elements are respectively arranged between the soil surface of the hot water storage tank body and the waterproof barrier layer;

[0018] S4, laying a waterproof spacer layer and a heat preservation cover in sequence at the opening of the heat storage tank body;

[0019] S5, placing a plurality of water temperature detection devices in the heat storage tank body, so that the top ends of the water temperature detection devices sequentially pass through the waterproof spacer layer and the heat insulation cover and are arranged outside the heat storage tank body;

[0020] S6. Connect each third temperature detection element in the water body temperature detection device to the temperature data recorder via a third data transmission line.

[0021] Furthermore, step S2 also includes: performing sealing and waterproofing treatment on the first data transmission line and the second data transmission line.

[0022] (III) Beneficial effects

[0023] The above technical solution of the present invention has the following advantages:

[0024] The temperature field distribution detection system and method of a hot water storage tank provided by the present invention can detect the temperature of the coupling point between the soil around the hot water storage tank and the hot water storage tank by arranging several rows of first temperature detection elements on the slope of the hot water storage tank. By arranging several second temperature detection elements on the bottom of the hot water storage tank, the temperature of the coupling point between the soil on the bottom of the hot water storage tank and the hot water storage tank can be detected. By arranging several water body temperature detection devices in the hot water storage tank body, the temperature of the water body in the hot water storage tank body can be detected. At the same time, each row of first temperature detection elements is arranged in sequence from high to low, and multiple third temperature detection elements are arranged in sequence from high to low in the hot water storage tank body, so that the temperature at different height positions of the hot water storage tank can be detected.

[0025] The temperature field distribution detection system and method of the hot water storage tank provided by the present invention can collect the temperature change and temperature stratification data of the temperature field after the hot water storage tank is coupled with the soil, and provide data basis for the application of water in different temperature layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the arrangement of the first temperature detection element and the second temperature detection element in the temperature field distribution detection system of the hot water storage tank according to an embodiment of the present invention;

[0027] Figure 2 1 is a schematic diagram of the installation of the first temperature detection element in the temperature field distribution detection system of the hot water storage tank according to the embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the installation of a water body temperature detection device in the temperature field distribution detection system of a hot water storage tank according to an embodiment of the present invention;

[0029] Figure 4 It is a partially enlarged schematic diagram of a water body temperature detection device in a temperature field distribution detection system for a hot water storage tank according to an embodiment of the present invention.

[0030] In the figure: 1: hot water storage tank body; 101: tank slope; 102: tank bottom; 2: first temperature detection element; 3: second temperature detection element; 4: water temperature detection device; 401: third temperature detection element; 402: vertical pipe; 403: detection port; 404: clamping part; 405: third data transmission line; 5: soil surface; 6: waterproof barrier layer; 7: insulation cover; 8: waterproof spacer layer. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-4 As shown, an embodiment of the present invention provides a temperature field distribution detection system for a hot water storage tank, comprising a hot water storage tank body 1, a top cover arranged at the opening of the hot water storage tank body 1, a soil coupling temperature detection system and a water body temperature detection system.

[0033] The heat storage pool body 1 is a pool opened in the ground soil, and the heat storage pool body 1 includes a pool slope 101 and a pool bottom 102. The shapes of the pool slope 101 and the pool bottom 102 can be determined according to actual conditions. For example, the pool slope 101 can be a cylindrical structure, or a polyhedron structure surrounded by at least three planes or arc surfaces. The pool bottom 102 can be circular, elliptical, triangular, quadrilateral or even a polygon with more than four sides.

[0034] In this embodiment, the pool slope 101 adopts a tetrahedron structure surrounded by four planes, the pool bottom 102 adopts a quadrilateral, and the opening area of ​​the hot water storage pool body 1 is larger than the area of ​​the pool bottom 102, so that the hot water storage pool body 1 as a whole forms a conical structure with a larger top and a smaller bottom.

[0035] The soil coupled temperature detection system includes a plurality of rows of first temperature detection elements 2 arranged on the pool slope 101, and a plurality of second temperature detection elements 3 arranged on the pool bottom 102. The first temperature detection elements 2 can collect temperature data of the coupling point between the surrounding slope soil of the hot water storage tank body 1 and the hot water storage tank body 1. The second temperature detection elements 3 can collect temperature data of the coupling point between the bottom soil of the hot water storage tank body 1 and the hot water storage tank body 1.

[0036] The first temperature detection elements 2 in each column are arranged in sequence from high to low, so that the temperature data at different heights after the hot water storage tank body 1 is coupled with the soil can be collected.

[0037] The water temperature detection system includes a plurality of water temperature detection devices 4 arranged in the heat storage tank body 1, a gap is arranged between the bottom end of each water temperature detection device 4 and the bottom surface 102 of the water tank, and the top end of each water temperature detection device 4 passes through the top cover and is arranged outside the heat storage tank body 1. Each of the water temperature detection devices 4 includes a plurality of third temperature detection elements 401 arranged in sequence from high to low, wherein the third temperature detection element 401 arranged at the highest position is arranged below the top cover, and the third temperature detection element 401 arranged at the lowest position is arranged above the bottom surface 102 of the water tank, that is, each of the third temperature detection elements 401 is arranged in the water of the heat storage tank body 1, and each of the third temperature detection elements 401 does not contact the heat storage tank body 1. By using the plurality of third temperature detection elements 401 arranged in sequence from high to low, the water temperature data at different height positions in the heat storage tank body 1 can be collected.

[0038] In a specific embodiment of the present application, the number of columns in which the first temperature detection elements 2 are arranged on the pool slope 101, the specific number of the first temperature detection elements 2 in each column, the number of the second temperature detection elements 3 on the pool bottom 102, the number of the water body temperature detection devices 4 in the hot water storage pool body 1, and the number of the third temperature detection elements 401 in each of the water body temperature detection devices 4 need to be set and adjusted according to actual conditions such as the shape, volume, and depth of the hot water storage pool body 1.

[0039] In a specific embodiment of the present application, the pool slope 101 adopts a tetrahedral structure formed by four planes, and eight rows of the first temperature detection elements 2 are arranged on the pool slope 101. At the same time, in order to ensure the accuracy of the detection data, a plurality of the first temperature detection elements 2 are arranged between each two adjacent rows of the first temperature detection elements 2.

[0040] Furthermore, a waterproof barrier layer 6 is laid on the soil surface 5 of the hot water storage tank body 1, and each of the first temperature detection elements 2 and each of the second temperature detection elements 3 are arranged between the soil surface 5 and the waterproof barrier layer 6, so as to detect and obtain the temperature change data of the hot water storage tank body 1 after coupling with the soil.

[0041] Furthermore, the top cover includes a heat-insulating cover 7 and a waterproof spacer layer 8 which are arranged in sequence from top to bottom.

[0042] Further, the water temperature detection device 4 includes a vertical pipe 402 and a plurality of detection ports 403 arranged on the vertical pipe 402, and the plurality of detection ports 403 are arranged in sequence from top to bottom. The number of the detection ports 403 is equal to the number of the third temperature detection elements 401, and each of the third temperature detection elements 401 is installed in each of the detection ports 403. The third temperature detection element 401 can detect the water temperature at different height positions in the hot water storage tank body 1 through the detection ports 403.

[0043] Specifically, each detection port 403 is provided with a waterproof sealing film for sealing and waterproofing the third temperature detection element 401 .

[0044] Specifically, the water temperature detection device 4 also includes a clamping member 404 arranged on the upper surface of the insulation cover, and the top end of the vertical tube 402 passes through the waterproof spacing layer 8 and the insulation cover 7 in sequence and is connected to the clamping member 404.

[0045] Furthermore, a temperature data recorder is also included, and each of the first temperature detection elements 2 is connected to the temperature data recorder via a first data transmission line. Each of the second temperature detection elements 3 is connected to the temperature data recorder via a second data transmission line. Each of the third temperature detection elements 401 is connected to the temperature data recorder via a third data transmission line 405. That is, the temperature detection data of each of the first temperature detection elements 2, each of the second temperature detection elements 3, and each of the third temperature detection elements 401 is collected through the temperature data recorder.

[0046] Specifically, the third data transmission line 405 is arranged in the vertical tube 402, and the third data transmission line 405 is respectively connected to each of the third temperature detection elements 401 in the vertical tube 402. One end of the third data transmission line 405 passes through the clamping member 404 and is led out to the outside of the vertical tube 402, so as to be connected to the temperature data recorder. The third data transmission line 405 can be waterproofed by the vertical tube 402.

[0047] Specifically, each of the first data transmission lines and each of the second data transmission lines are disposed in a sealing sleeve, thereby achieving waterproof protection for the first data transmission line and the second data transmission line.

[0048] In addition, the temperature data recorder can also be connected to a remote monitoring device via Ethernet, thereby realizing remote data transmission of temperature detection data, which is convenient for realizing remote temperature monitoring of the heat storage tank.

[0049] The temperature field distribution detection system for the hot water storage tank described in the embodiment of the present invention can collect temperature change and temperature stratification data of the temperature field after the hot water storage tank is coupled with the soil, and provide data basis for the application of water in different temperature layers.

[0050] The embodiment of the present invention further provides a method for detecting the temperature field distribution of a hot water storage tank. The method adopts the temperature field distribution detection system of the hot water storage tank described in the above embodiment. The method specifically comprises the following steps:

[0051] S1. Arrange a plurality of rows of first temperature detection elements 2 and a plurality of second temperature detection elements 3 on the soil surface 5 of the hot water storage tank body 1, so that the first temperature detection elements 2 in each row are arranged in sequence from high to low along the pool slope 101 of the hot water storage tank body 1, and each second temperature detection element 3 is arranged on the pool bottom surface 102 of the hot water storage tank body 1.

[0052] S2. Connect each of the first temperature detection elements 2 to a temperature data recorder through a first data transmission line, connect each of the second temperature detection elements 3 to the temperature data recorder through a second data transmission line, and perform waterproof treatment on each of the first temperature detection elements 2, the first data transmission line, the second temperature detection element 3 and the second data transmission line.

[0053] S3. Lay a waterproof barrier layer 6 on the hot water storage tank body 1, so that each of the first temperature detection elements 2 and each of the second temperature detection elements 3 are respectively arranged between the soil surface 5 of the hot water storage tank body and the waterproof barrier layer 6.

[0054] S4, laying the heat preservation cover 7 and the waterproof spacer layer 8 in sequence from top to bottom at the opening of the hot water storage tank body 1, completing the construction of the top cover of the hot water storage tank.

[0055] S5. Place a plurality of water temperature detection devices 4 in the heat storage tank body 1, so that the top ends of the water temperature detection devices 4 sequentially pass through the waterproof spacing layer 8 and the heat preservation cover 7 and are arranged outside the heat storage tank body 1, wherein the third temperature detection elements 401 in each of the water temperature detection devices 4 are in the water of the heat storage tank body 1, and each of the third temperature detection elements 401 does not contact the surface of the heat storage tank body 1.

[0056] S6. Connect each of the third temperature detection elements 401 in the water body temperature detection device 4 to the temperature data recorder via a third data transmission line 405 .

[0057] The method for detecting the temperature field distribution of a hot water storage tank described in an embodiment of the present invention can collect temperature change and temperature stratification data of the temperature field after the hot water storage tank is coupled with the soil, and provide data basis for the application of water in different temperature layers.

[0058] In summary, the hot water tank temperature field distribution detection system and method described in the embodiment of the present invention can not only detect the temperature at different heights after the surroundings and bottom of the hot water tank are coupled with the soil, but also detect the water temperature at different heights in the hot water tank, thereby realizing the temperature change and temperature stratification data collection of the temperature field after the hot water tank is coupled with the soil, and providing data basis for the application of water in different temperature layers.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the description of the present invention, unless otherwise specified, “several” means one or more; “plurality” means two or more; the directions or positional relationships indicated by the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature field distribution detection system for a hot water storage tank, characterized in that: It comprises a heat storage tank body, a top cover arranged at the opening of the heat storage tank body, a soil coupling temperature detection system and a water body temperature detection system; the heat storage tank body comprises a pool slope and a pool bottom; the soil coupling temperature detection system comprises a plurality of rows of first temperature detection elements arranged on the pool slope and a plurality of second temperature detection elements arranged on the pool bottom, wherein the first temperature detection elements in each row are arranged in sequence from high to low; The first temperature detection element (2) is capable of collecting temperature data of the coupling point between the soil on the slope surrounding the hot water storage tank body (1) and the hot water storage tank body (1); The second temperature detection element (3) is capable of collecting temperature data at the coupling point between the bottom soil of the hot water storage tank body (1) and the hot water storage tank body (1); A waterproof barrier layer is laid on the soil surface of the heat storage tank body, and each of the first temperature detection elements and each of the second temperature detection elements are arranged between the soil surface and the waterproof barrier layer; The water temperature detection system includes a plurality of water temperature detection devices arranged in the heat storage tank body, each of the water temperature detection devices includes a plurality of third temperature detection elements arranged in sequence from high to low, a gap is arranged between the bottom end of each water temperature detection device and the bottom surface of the water tank, and the top end of each water temperature detection device passes through the top cover and is arranged outside the heat storage tank body.

2. The hot water storage tank temperature field distribution detection system according to claim 1, characterized in that: The top cover comprises a heat-insulating cover and a waterproof spacer layer which are arranged in sequence from top to bottom.

3. The hot water storage tank temperature field distribution detection system according to claim 2, characterized in that: The water body temperature detection device includes a vertical tube and a plurality of detection ports arranged on the vertical tube. The plurality of detection ports are arranged in sequence from top to bottom. The number of the detection ports is equal to the number of the third temperature detection elements. Each of the third temperature detection elements is respectively installed in each of the detection ports.

4. The hot water storage tank temperature field distribution detection system according to claim 3, characterized in that: The water temperature detection device also includes a clamping piece arranged on the upper surface of the heat-insulating cover, and the top end of the vertical pipe passes through the waterproof spacing layer and the heat-insulating cover in sequence and is connected to the clamping piece.

5. The temperature field distribution detection system for a hot water storage tank according to claim 3, characterized in that: A waterproof sealing film is provided at each detection port.

6. The hot water storage tank temperature field distribution detection system according to claim 3, characterized in that: It also includes a temperature data recorder, each of the first temperature detection elements is connected to the temperature data recorder via a first data transmission line, each of the second temperature detection elements is connected to the temperature data recorder via a second data transmission line, and each of the third temperature detection elements is connected to the temperature data recorder via a third data transmission line.

7. The temperature field distribution detection system for a hot water storage tank according to claim 6, characterized in that: The third data transmission line is disposed in the vertical tube.

8. A method for detecting the temperature field distribution of a hot water storage tank, characterized in that: The method adopts the temperature field distribution detection system of the hot water storage tank according to any one of claims 1 to 7, and the method specifically comprises the following steps: S1. Arrange a plurality of rows of first temperature detection elements and a plurality of second temperature detection elements on the soil surface of the hot water storage tank body, so that the first temperature detection elements in each row are arranged in sequence from high to low along the slope of the hot water storage tank body, and each second temperature detection element is arranged on the bottom surface of the hot water storage tank body; S2, connecting each of the first temperature detection elements to a temperature data recorder through a first data transmission line, and connecting each of the second temperature detection elements to the temperature data recorder through a second data transmission line; S3, laying a waterproof barrier layer on the hot water storage tank body, so that each of the first temperature detection elements and each of the second temperature detection elements are respectively arranged between the soil surface of the hot water storage tank body and the waterproof barrier layer; S4, laying a waterproof spacer layer and a heat preservation cover in sequence at the opening of the heat storage tank body; S5, placing a plurality of water temperature detection devices in the heat storage tank body, so that the top ends of the water temperature detection devices sequentially pass through the waterproof spacer layer and the heat insulation cover and are arranged outside the heat storage tank body; S6. Connect each third temperature detection element in the water body temperature detection device to the temperature data recorder via a third data transmission line.

9. The method for detecting the temperature field distribution of a hot water storage tank according to claim 8, characterized in that: Step S2 also includes: performing sealing and waterproofing treatment on the first data transmission line and the second data transmission line.

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