A water flow direction switching component in an inner and outer casing

Abstract

The utility model belongs to the technical field of geothermal energy utilization, and provides a water flow direction switching component in an inner and outer sleeve, which switches different water flow direction modes in the inner and outer sleeves. The utility model has a simple structure, is convenient and quick to use, and adopts the technical scheme as follows: a lower staggered disc is fixedly installed at the upper end of the lower inner tube, an outer edge of the lower staggered disc is sealed and fixed on the inner wall of the outer tube, an upper staggered disc is slidably installed up and down in a first water passing area above the lower staggered disc, a guide sleeve is fixed on the bottom surface of the upper staggered disc, the guide sleeve penetrates the lower staggered disc and is slidably sleeved on the outer wall of the lower inner tube, and matching grooves and convex strips are vertically arranged on the fitting surfaces of the guide sleeve and the lower inner tube, the length of the guide sleeve is greater than the height of the first water passing area, a plurality of through holes are alternately arranged on the lower staggered disc and the upper staggered disc, and all the through holes are blocked when the lower staggered disc and the upper staggered disc are fitted together, a lifting rope mechanism is installed on the upper staggered disc, and the lifting rope mechanism controls the upper staggered disc to move upward.

Description

Technical Field

[0001] The utility model discloses a water flow direction switching component in an inner and outer sleeve, which belongs to the technical field of geothermal energy utilization, and specifically relates to a mode switching device for geothermal collection under different requirements. Background Art

[0002] Geothermal energy refers to clean and renewable thermal energy resources stored in the earth's crust in a broad sense. It comes from the heat generated during the original formation of the earth and the radioactive decay of materials. Geothermal energy is a clean energy and a renewable energy source with a very broad development prospect. There are three modes of utilization of geothermal resources, namely shallow geothermal energy utilization, medium-deep geothermal energy utilization and deep geothermal energy utilization. For example, in ordinary areas, shallow geothermal generally refers to heat energy below 25°C that is stored in rock and soil and groundwater within 200 meters below the surface and has development and utilization value. It can be used for building heating, cooling and hot water supply using ground source heat pump systems. Medium-deep geothermal energy is also called "conventional geothermal energy". It is generally buried within 3,000 meters and is mainly used directly for building heating, breeding, greenhouse planting and irrigation, medical care, industrial production, etc. Deep geothermal resources are mainly used for power generation.

[0003] At present, geothermal resources are applied to heat exchange systems. One method is to use shallow geothermal energy, which requires a heat pump system to achieve cooling or heating using the heat pump principle. The shallow geothermal system dissipates heat or provides heat for the heat pump system medium in summer and winter. However, the temperature of shallow geothermal energy is low, and the heating efficiency in winter is low.

[0004] Another method is to build a medium-deep geothermal system, using air source heat pumps for cooling in summer (i.e., air conditioning system), and sending the medium into the medium-deep geothermal for heat exchange and heating in winter. However, this system cannot take advantage of geothermal resources in summer.

[0005] Therefore, the combination of utilizing shallow geothermal resources in summer and medium-deep geothermal resources in winter is undoubtedly the optimal solution for geothermal resource utilization. However, the existing technology can only arrange shallow geothermal resource heat exchangers or medium-deep geothermal resource heat exchangers separately in one borehole, resulting in the need for double drilling of the combination plan, which will greatly increase the cost.

[0006] In order to save space occupied by a single unit, it is necessary to consider integrating the shallow geothermal and deep geothermal systems and arranging them in the same borehole, switching them according to different needs, reducing space occupancy so that more collection equipment can be built in the same area, and simplifying pipeline layout. The system integrated in the same borehole needs to be designed with a reasonable and effective water flow direction switching device. Utility Model Content

[0007] In order to solve one of the above technical defects, the utility model provides a water flow direction switching component in an inner and outer sleeve, which switches different water flow direction modes in the inner and outer sleeve, has a simple structure, and is convenient and quick to use.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is: a water flow direction switching component in an inner and outer outer casing, an upper inner tube is vertically fixed at the center of the upper part of the outer tube, and a lower inner tube is vertically fixed at the center of the lower part of the outer tube, the upper inner tube and the lower inner tube are both hollow tube structures with upper and lower openings, a first water passing area is left between the lower end of the upper inner tube and the upper end of the lower inner tube, and the water flow direction switching component is installed in the first water passing area;

[0009] The water flow direction switching assembly includes a lower staggered disc, an upper staggered disc, a guide sleeve and a lifting rope mechanism, wherein the lower staggered disc is fixedly mounted on the upper end of the lower inner tube, the outer edge of the lower staggered disc is sealed and fixed on the inner wall of the outer tube, the upper staggered disc is slidably mounted up and down in the first water passing area above the lower staggered disc, a guide sleeve is fixed on the bottom surface of the upper staggered disc, the guide sleeve penetrates the lower staggered disc and is slidably sleeved on the outer wall of the lower inner tube, and matching grooves and convex strips are vertically arranged on the fitting surfaces of the guide sleeve and the lower inner tube, and the guide sleeve is The length is greater than the height of the first water-passing area, and a plurality of through holes are alternately arranged on the lower staggered disk and the upper staggered disk, and all the through holes are blocked when the lower staggered disk and the upper staggered disk are in contact with each other. A lifting rope mechanism is installed on the upper staggered disk, and the lifting rope mechanism includes a power device, a reel and a pull rope. The reel is installed directly above the outside of the outer tube through a bearing seat, one end of the reel is fixedly connected to the power device and is driven to rotate by the power device, one end of a plurality of pull ropes is fixedly connected to the upper staggered disk, and the other ends of the plurality of pull ropes are all wound on the reel.

[0010] A rubber layer is mounted on the upper surface of the upper staggered plate.

[0011] A rubber layer is mounted on the upper surface of the lower offset plate.

[0012] When the upper staggered plate is fitted with the bottom surface of the upper inner tube, no gap is left between the upper surface of the upper staggered plate and the bottom end of the upper inner tube.

[0013] A plurality of guide ear hole slot tubes are evenly arranged on the outer wall of the upper inner tube, and each pull rope is respectively placed in a guide ear hole slot tube.

[0014] By adopting the water flow direction switching component in the inner and outer sleeves provided by the utility model, the relative relationship of the overlap or separation of the upper staggered disc and the lower staggered disc is adjusted by pulling the rope, so as to realize switching of different water flow direction modes in the inner and outer sleeves. The structure is simple and the use is convenient and quick.

[0015] Other features and advantages of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the contents indicated in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of a water flow mode of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another water flow mode of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 A schematic diagram of the structure of the upper staggered plate provided by the utility model;

[0021] Figure 5 The present invention is a schematic structural diagram of the lower staggered plate provided by the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are 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.

[0023] like Figure 1-5 As shown, the utility model is a water flow direction switching assembly in an inner and outer outer casing, an upper inner tube 2 is vertically fixed at the center of the upper part of the outer tube 1, and a lower inner tube 3 is vertically fixed at the center of the lower part of the outer tube 1. The upper inner tube 2 and the lower inner tube 3 are both hollow tube structures with upper and lower openings. A first water passing area 8 is left between the lower end of the upper inner tube 2 and the upper end of the lower inner tube 3, and the first water passing area 8 is installed with a water flow direction switching assembly;

[0024] The water flow direction switching assembly includes a lower staggered disc 11, an upper staggered disc 12, a guide sleeve 13 and a lifting rope mechanism 14, the lower staggered disc 11 is fixedly mounted on the upper end of the lower inner tube 3, the outer edge of the lower staggered disc 11 is sealed and fixed on the inner wall of the outer tube 1, the upper staggered disc 12 is slidably mounted up and down in the first water passing area 8 above the lower staggered disc 11, the bottom surface of the upper staggered disc 12 is fixed with a guide sleeve 13, the guide sleeve 13 penetrates the lower staggered disc 11 and is slidably sleeved on the outer wall of the lower inner tube 3, and matching grooves and convex strips are vertically arranged on the fitting surface of the guide sleeve 13 and the lower inner tube 3, the length of the guide sleeve 13 is greater than the height of the first water passing area 8, the lower staggered disc 11 and the upper staggered disc 12 are staggered with a plurality of through holes 15, and when the lower staggered disc 11 and the upper staggered disc 12 are fitted together, all the through holes 15 are blocked, and the through holes 15 are preferably polygonal holes, so that the through holes 15 of the lower staggered disc 11 and the upper staggered disc 12 are Under the premise of complete misalignment, the total hole area is the largest, and the through-hole area on the lower staggered disk 11 and the upper staggered disk 12 located in the tube cavity of the outer tube 1 is the same, and the through-hole area on the lower staggered disk 11 and the upper staggered disk 12 located in the tube cavity of the upper inner tube 2 and the lower inner tube 3 is the same. Even if the through-hole area cannot be the same, it cannot differ too much. The grooves and convex strips on the fitting surface of the guide sleeve 13 and the lower inner tube 3 can avoid the circumferential rotation of the upper staggered disk 12 during the up and down process, and effectively ensure the channel blocking function when the lower staggered disk 11 and the upper staggered disk 12 are fitted together. A lifting rope mechanism 14 is installed on the upper staggered disk 12. The lifting rope mechanism 14 includes a power device, a reel and a pull rope. The reel is installed directly above the outside of the outer tube 1 through a bearing seat. One end of the reel is fixedly connected to the power device and driven to rotate by the power device. One end of a plurality of pull ropes is fixedly connected to the upper staggered disk 12, and the other ends of the plurality of pull ropes are all wound on the reel.

[0025] A rubber layer is mounted on the upper surface of the upper staggered plate 12 .

[0026] A rubber layer is mounted on the upper surface of the lower staggered plate 11 to reduce the molecular attraction between the upper staggered plate 12 and the lower staggered plate 11 .

[0027] When the upper staggered plate 12 is fitted with the bottom surface of the upper inner tube 2, no gap is left between the upper surface of the upper staggered plate 12 and the bottom end of the upper inner tube 2, so as to prevent medium water from flowing between the upper inner tube 2 and the outer tube 1 through the gap.

[0028] A plurality of guide ear hole slot tubes 16 are evenly arranged on the outer wall of the upper inner tube 2 , and each pull rope is respectively placed in a guide ear hole slot tube 16 .

[0029] The working principle of this utility model:

[0030] like Figure 1As shown, it is one of the water flow modes of the utility model, the upper staggered plate 12 overlaps with the lower staggered plate 11, and the multiple through holes 15 on the lower staggered plate 11 and the upper staggered plate 12 are staggered. When the lower staggered plate 11 and the upper staggered plate 12 are fitted together, all the through holes 15 are blocked by each other, so that the medium water cannot flow downward. At this time, the first water passing area 8 is unobstructed, and the medium water can directly flow to the upper inner tube 2;

[0031] When switching to another water flow mode, the power device is started to drive the reel to rotate slowly, the pull rope is rolled up, and multiple pull ropes drive the upper staggered plate 12 to rise, and the upper staggered plate 12 is stuck at the lower end of the upper inner tube 2. Figure 2 As shown, the channel for the medium water to directly enter the upper inner tube 2 from the outer tube 1 is blocked, and then the medium water flows into the area between the upper staggered disk 12 and the upper staggered disk 11 from the multiple through holes of the upper staggered disk 12, and then flows into the outer tube 1 below from the through holes of the lower staggered disk 11. The medium water continues to flow downward and then flows into the lower inner tube 3 from other channels. When reaching the upper end of the lower inner tube 3, the medium water can also smoothly enter the upper inner tube 2 and then flow out from the upper part thereof. During the flow of the medium water, the guide sleeve 13 not only guides the upper staggered disk 12 up and down, but also realizes the isolation of the medium water in the outer tube and the inner tube during the separation of the upper staggered disk 12 and the lower staggered disk 11.

[0032] Switch back to Figure 1 In the water flow direction mode shown, it is only necessary to operate the power device to rotate the reel in the opposite direction and release the pull rope, and the upper disc 12 will drop under the impact pressure of the water flow and its own gravity until it overlaps with the lower disc 11.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A water flow direction switching assembly in an inner and outer outer casing, wherein an upper inner tube (2) is vertically fixed at the center of the upper part of the outer tube (1), and a lower inner tube (3) is vertically fixed at the center of the lower part of the outer tube (1), the upper inner tube (2) and the lower inner tube (3) are both hollow tube structures open at the top and bottom, and a first water passing area (8) is reserved between the lower end of the upper inner tube (2) and the upper end of the lower inner tube (3), characterized in that: The first water passage area (8) is equipped with a water flow direction switching component; The water flow direction switching assembly comprises a lower offset plate (11), an upper offset plate (12), a guide sleeve (13) and a lifting rope mechanism (14); the lower offset plate (11) is fixedly mounted on the upper end of the lower inner tube (3); the outer edge of the lower offset plate (11) is sealed and fixed on the inner wall of the outer tube (1); the upper offset plate (12) is slidably mounted up and down in a first water passage area (8) above the lower offset plate (11); a guide sleeve (13) is fixed on the bottom surface of the upper offset plate (12); the guide sleeve (13) penetrates the lower offset plate (11) and is slidably mounted on the outer wall of the lower inner tube (3); and matching grooves and convex grooves are vertically arranged on the contact surfaces of the guide sleeve (13) and the lower inner tube (3). The guide sleeve (13) has a length greater than the height of the first water-passing area (8); the lower staggered disc (11) and the upper staggered disc (12) are staggered with a plurality of through holes (15); and when the lower staggered disc (11) and the upper staggered disc (12) are in contact with each other, all the through holes (15) are blocked; a lifting rope mechanism (14) is installed on the upper staggered disc (12); the lifting rope mechanism (14) comprises a power device, a reel and a pull rope; the reel is installed directly above the outside of the outer tube (1) through a bearing seat; one end of the reel is fixedly connected to the power device and driven to rotate by the power device; one end of the plurality of pull ropes is fixedly connected to the upper staggered disc (12); and the other ends of the plurality of pull ropes are all wound on the reel.

2. A water flow direction switching assembly in an inner and outer sleeve according to claim 1, characterized in that: A rubber layer is mounted on the upper surface of the upper staggered plate (12).

3. The water flow direction switching assembly in the inner and outer sleeves according to claim 1, characterized in that: A rubber layer is mounted on the upper surface of the lower offset plate (11).

4. The water flow direction switching assembly in the inner and outer sleeves according to claim 1, characterized in that: When the upper staggered plate (12) is fitted with the bottom surface of the upper inner tube (2), no gap is left between the upper surface of the upper staggered plate (12) and the bottom end of the upper inner tube (2).

5. The water flow direction switching assembly in the inner and outer sleeves according to claim 3, characterized in that: A plurality of guide ear hole slot tubes (16) are evenly arranged on the outer wall of the upper inner tube (2), and each draw cord is respectively placed in a guide ear hole slot tube (16).

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