Floor drain trench type heat recovery device

Abstract

The utility model discloses a floor drain trench type heat recovery device in the technical field of waste heat recovery devices, and the floor drain trench type heat recovery device comprises a plurality of groove bodies which are sequentially aligned and connected end to end, the two ends of each groove body are fixedly sleeved with U-shaped pieces correspondingly, and each U-shaped piece is provided with a plurality of connecting holes in the circumferential direction; the adjacent groove bodies are fixed in the mode that bolts penetrate through the opposite connecting holes. The tank body is provided with a tank cover in a buckling manner, a plurality of micropores are uniformly distributed in the tank cover, the waste water outlet is formed in the tank body at the head end, the waste water inlet is formed in the tank body at the tail end, a communicating opening is formed between every two adjacent tank bodies, and each tank body is detachably connected with a heat exchange pipe. Compared with the prior art, the waste water inlet and the waste water outlet are additionally arranged, a use environment specially used for collecting waste hot water in advance is provided, and the floor drain function is taken into account.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery devices, in particular to a floor drain and trench type heat recovery device. Background Art

[0002] Waste heat refers to the sensible heat and latent heat that have not been reasonably utilized in the original design of energy-consuming equipment in industrial enterprises that have been put into operation due to limitations of historical, technological, and conceptual factors. It includes waste heat from high-temperature exhaust gas, waste heat from cooling media, waste heat from waste steam and waste water, waste heat from high-temperature products and slag, waste heat from chemical reactions, and waste heat from combustible exhaust gas, waste liquid, and waste materials.

[0003] As people's living standards improve, hot water is increasingly used in various applications, such as washing vegetables in the kitchen, washing hands and feet in the bathroom, showering, washing machines, and bathtubs. In practice, to meet these requirements, a large amount of energy is required to heat water to the required temperature, but the actual effective use of this heat energy is relatively low. For example, in Guizhou Province, tap water temperatures range from 2 to 5°C in winter and 15 to 19°C in summer, while bath water temperatures range from 40 to 44°C. However, the actual heat utilization rate of shower water is only 30%, with more heat energy being discharged as domestic wastewater, wasting significant energy and increasing the greenhouse effect.

[0004] To this end, the inventor has previously applied for a drain with heat recovery function (application number 202020537758.X), which includes an outer cylinder, a cylinder cover is fastened on the top of the outer cylinder, and the cylinder cover is coaxially connected to an isolation tube. The isolation tube divides the internal space of the outer cylinder into an outer water tank and an inner water tank from the outside to the inside. The cylinder cover is also provided with a water inlet connected to the outer water tank, the outer water tank is provided with a first coil, and the inner water tank is provided with a second coil connected end to end with the first coil. The bottom of the outer cylinder is provided with a sewage outlet connected to the inner water tank, and the sewage outlet is coaxially and detachably connected to a drain pipe extending into the inner water tank.

[0005] This application introduces domestic wastewater (such as waste hot water produced by showering) through the water inlet provided on the cylinder cover, and introduces tap water to be heated into the first and second coils. The domestic wastewater exchanges heat with the first and second coils, thereby achieving the purpose of heating the tap water. However, there are abundant sources of external waste hot water, such as domestic waste hot water and industrial waste hot water. When there is no demand for hot water, the first and second coils do not introduce tap water to be heated, and these external waste hot water cannot be collected. The waste hot water flows through the heat absorbing plate without being heated, resulting in waste. For this reason, the applicant collects these waste hot water using an insulating device (such as an insulating barrel), and then designs a heat recovery device based on this idea that also takes into account the function of floor drain. Utility Model Content

[0006] The utility model aims to provide a floor drain and trench type heat recovery device, so as to provide a heat recovery device based on the environment of collecting waste hot water in advance and taking into account the functions of the floor drain and trench.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0008] A floor drain and trench type heat recovery device comprises a plurality of trough bodies which are aligned and connected end to end in sequence, a U-shaped piece being fixedly sleeved at each end of each trough body, the U-shaped piece being provided with a plurality of connection holes along the circumferential direction, and adjacent trough bodies being fixed by bolts passing through the relative connection holes; the trough body being fastened with a trough cover having a plurality of micropores evenly distributed thereon, and further comprising a wastewater outlet provided on the head end trough body and a wastewater inlet provided on the tail end trough body, a connecting port being provided between adjacent trough bodies, and each trough body being detachably connected to a heat exchange pipe.

[0009] The working principle and beneficial effects of this utility model:

[0010] In this solution, bolts are passed through the connecting holes on the U-shaped piece to align the multiple trough bodies end to end and fix them together. When there is a need for hot water, the tap water to be heated is passed into the heat exchange tube, and the pre-collected waste hot water is passed into the wastewater inlet. The waste hot water flows through the multiple trough bodies through the connecting port, and the waste hot water after heat exchange is discharged outward through the wastewater outlet. In this process, the waste hot water and the heat exchange tube exchange heat, thereby heating the tap water. In addition, there are multiple micropores evenly distributed on the trough cover. A part of the domestic water flows into the trough body through the multiple micropores and is discharged outward through the wastewater outlet. This domestic water can also achieve the purpose of heating the heat exchange tube, while also taking into account the function of discharging sewage through the floor drain.

[0011] Compared with the existing technology, this solution sets up additional wastewater inlets and wastewater outlets, which are dedicated to collecting wastewater hot water in advance and using the environment, while taking into account the functions of floor drains and trenches. At the same time, the actual heat exchange needs on site can be realized by one or more components.

[0012] Optimally, the U-shaped piece is provided with a sealing piece. When adjacent troughs are connected and aligned, the troughs on both sides squeeze the sealing piece to deform, thereby providing a better sealing effect to prevent waste hot water and sewage from leaking out.

[0013] Optimally, there are multiple tanks, and an appropriate number of tanks is selected based on actual installation requirements and tap water heating needs.

[0014] Optimally, each tank body is fixedly provided with a mounting bracket, and the heat exchange tubes are distributed in a serpentine shape on the mounting bracket. The serpentine shape can increase the heat exchange area with the waste hot water, improve the heat exchange efficiency, fix the serpentine heat exchange tubes as a whole, and facilitate the removal and cleaning of the heat exchange tubes and the mounting bracket together in the later stage. Moreover, the heat exchange tubes will not be deformed, there are no dead corners in cleaning, and the high heat exchange efficiency can be maintained for a long time.

[0015] Optimally, the bottom inner walls inside multiple tank bodies are gradually inclined downward from the waste water inlet towards the waste water outlet. This optimized solution guides the waste hot water, thereby preventing the waste hot water from accumulating in multiple tank bodies and causing the heat exchange effect to deteriorate.

[0016] Optimally, each heat exchange tube includes a water inlet and a water outlet, and movable nuts are coaxially rotatably connected to the water inlet and the water outlet. The externally connected water pipe is provided with an internal thread nut that cooperates with the movable nut, and the internal thread nut is screwed onto the external thread nut to achieve quick installation.

[0017] Optimally, a filter screen is provided at the waste water inlet of the tank body. The filter screen 9 filters the garbage and fluff in the waste hot water. Description of the Drawings

[0018] Figure 1 It is the top view of a floor drain trench type heat recovery device of the present utility model;

[0019] Figure 2 It is Figure 1 The top view after removing the tank cover;

[0020] Figure 3 It is Figure 1 The side view of the tank body in

[0021] Figure 4 It is the top view of a floor drain trench type heat recovery device in Embodiment 2. Specific Embodiments

[0022] The following is further detailed through specific embodiments:

[0023] The reference numerals in the drawings of the specification include: waste water outlet 1, tank cover 2, tank body 3, waste water inlet 4, heat exchange tube 5, communication port 6, U-shaped piece 7, connection hole 8, filter screen 9.

[0024] In the following statements, orientation words such as "left", "right", "up", and "down" are based on the orientation in the drawings. In practice, if the corresponding structure makes the same-direction change based on the orientation and keeps the relative position unchanged, it does not affect the implementation of the solution.

[0025] Embodiment: A floor drain trench type heat recovery device, as Figure 1As shown in the figure, it includes two trough bodies 3 connected end to end in sequence. At both ends of each trough body 3, a U-shaped piece 7 is fixedly sleeved. The U-shaped piece 7 is provided with 10 connecting holes 8 along the circumferential direction. The adjacent trough bodies 3 are fixed by bolts passing through the opposite connecting holes 8; as Figure 2 and Figure 3 shown in the figure, a trough cover 2 with a plurality of micropores evenly distributed is buckled on the two trough bodies 3. It also includes a waste water outlet 1 provided on the left trough body 3 and a waste water inlet 4 provided on the right trough body 3 respectively. A communication port 6 is provided between the adjacent trough bodies 3. Each trough body 3 is detachably connected with a heat exchange tube 5, and the heat exchange tube 5 is distributed in a serpentine shape.

[0026] In this solution, bolts are used to pass through the connecting holes 8 on the U-shaped piece 7 to align the two trough bodies 3 end to end and fixedly connect them together. When there is a demand for hot water, the tap water to be heated is introduced into the heat exchange tube 5, and the pre-collected waste hot water is introduced into the waste water inlet 4. The waste hot water then flows through the two trough bodies 3 through the communication port 6, and the waste hot water after heat exchange is discharged out through the waste water outlet 1. In this process, the waste hot water exchanges heat with the heat exchange tube 5, so as to realize the heating of the tap water. Moreover, a plurality of micropores are evenly distributed on the trough cover 2, and a part of domestic water flows into the trough body 3 through the plurality of micropores and is discharged out through the waste water outlet 1. These domestic waters can also achieve the purpose of heating the heat exchange tube 5, and at the same time, it also takes into account the function of draining sewage of the floor drain.

[0027] Compared with the prior art, this solution is provided with a waste water inlet 4 and a waste water outlet 1 additionally, which are dedicated to the environment of pre-collecting and using waste hot water, and also takes into account the function of the floor drain.

[0028] Embodiment 2: As Figure 4 shown in the figure, the heat exchange tubes 5 on both sides are communicated with each other, and a filter screen 9 is fixedly provided on the trough body 3 on the right side. The filter screen 9 filters the garbage and fluff in the waste hot water.

[0029] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the records of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

Claims

1. A floor drain trench - type heat recovery device, comprising a plurality of troughs that are aligned and connected in sequence from head to tail, characterized in that: U-shaped pieces are fixedly sleeved at both ends of each tank body. A plurality of connection holes are provided in the U-shaped pieces along the circumferential direction. Adjacent tank bodies are fixed by bolts passing through the opposite connection holes. The tank body is buckled with a tank cover evenly distributed with a plurality of micropores. It also includes a waste water outlet provided at the head tank body and a waste water inlet provided at the tail tank body respectively. A communication port is provided between adjacent tank bodies. Each tank body is detachably connected with a heat exchange tube. The waste hot water is collected by a heat insulation device. When there is a demand for hot water, the tap water to be heated is introduced into the heat exchange tube, and the pre-collected waste hot water is introduced into the waste water inlet.

2. The floor drain trench type heat recovery device according to claim 1, characterized in that: The U-shaped piece is provided with a sealing piece.

3. The floor drain trench type heat recovery device according to claim 2, characterized in that: The number of the tank bodies is multiple.

4. The floor drain trench type heat recovery device according to claim 3, characterized in that: Each tank body is fixedly provided with a mounting bracket, and the heat exchange tubes are serpentinely distributed on the mounting bracket.

5. The floor drain trench type heat recovery device according to claim 4, characterized in that: The bottom inner walls inside a plurality of the tank bodies gradually slope downward from the waste water inlet towards the waste water outlet.

6. The floor drain trench type heat recovery device according to claim 5, characterized in that: Each heat exchange tube includes a water inlet and a water outlet, and movable nuts are coaxially rotatably connected to the water inlet and the water outlet.

7. The floor drain trench type heat recovery device according to claim 6, characterized in that: The tank body is provided with a filter screen at the waste water inlet.

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