Side-by-side heat recovery tank
By installing multiple heat exchange pipes side by side, and using the design of partition plates, wastewater connection ports and deflectors, the problem of low waste heat recovery efficiency in the existing technology is solved, and more efficient waste heat recovery and energy conservation are achieved.
Patent Information
- Application Number
- CN202420958137.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-07
AI Technical Summary
When the waste hot water volume of existing heat recovery tanks is large, a single heat exchange pipe cannot be effectively processed, resulting in a reduced waste heat recovery efficiency and a large amount of waste hot water is wasted.
A side-by-side heat recovery tank is designed, allowing multiple heat exchange pipes to be installed side-by-side. Through the partition plate and the staggered waste water connection port, combined with the deflector and the deflector group, the uniform distribution of waste hot water and the effective utilization of multiple heat exchange pipes are achieved.
It improves waste heat recovery efficiency, can handle tap water heating with a larger water flow, saves energy, and prevents waste hot water storage, controls flow rate, and improves heat exchange efficiency through the design of the inclined chute and fixed bracket.
Smart Images
Figure CN222670769U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste heat recovery devices, in particular to a side-by-side heat recovery tank. Background Art
[0002] Waste heat refers to the sensible heat and latent heat that has not been reasonably utilized in the original design of energy-consuming devices of 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 used more and more widely, such as water for washing vegetables in the kitchen, washing hands and feet in the bathroom, showers, washing machines, bathtubs, etc. In actual use, in order to meet the use requirements, water needs a lot of energy to be heated to the required temperature, but the actual effective heat energy is used less. For example, when people take a bath, taking Guizhou as an example, the tap water temperature is 2-5℃ in winter and 15-19℃ in summer, while the temperature of bath water is between 40-44℃, and the actual heat utilization rate of shower water is only 30%. More heat energy is discharged with domestic wastewater, wasting a lot of energy and increasing the greenhouse effect.
[0004] To this end, the inventor has previously invented a heat recovery tank, including a tank body, a heat exchange tube inside the tank, the heat exchange tube including a water inlet and a water outlet, and wastewater inlet and wastewater outlet on both sides of the tank body, and the heat exchange tube is located between the wastewater inlet and the wastewater outlet; and a guide plate with multiple guide holes is also provided in the tank body, and the guide plate can evenly distribute the waste hot water. However, the structure of this heat recovery tank can only install one heat exchange tube, and when the amount of waste hot water is large, one heat exchange tube can only pass a certain amount of water flow, which will lead to a decrease in waste heat recovery efficiency and cause a large amount of waste hot water to be wasted. Utility Model Content
[0005] The utility model aims to provide a side-by-side heat recovery tank, so as to provide a plurality of heat exchange tubes that can be installed side by side, thereby improving the waste heat recovery efficiency.
[0006] In order to achieve the above object, the utility model provides the following technical solutions:
[0007] A side-by-side heat recovery tank comprises a tank body and a plurality of heat exchange tubes, wherein the plurality of heat exchange tubes are connected end to end in sequence, the heat exchange tube located at the head end is provided with a water outlet, and the heat exchange tube located at the tail end is provided with a water inlet; the tank body is provided with a partition plate located between adjacent heat exchange tubes, the partition plate is provided with a wastewater connection port, and a plurality of the wastewater connection ports are staggeredly arranged on opposite sides of the tank body; the tank body is also provided with a wastewater inlet and a wastewater outlet, guide plates are provided on both sides of the tank body, each guide plate is provided with a plurality of guide hole groups covering the plurality of heat exchange tubes, and each guide hole group includes a plurality of guide holes arranged at intervals.
[0008] The working principle and beneficial effects of the utility model:
[0009] In the present solution, a plurality of heat exchange tubes are located inside the water tank, and the plurality of heat exchange tubes are connected end to end in sequence. The heat exchange tube located at the head end is provided with a water inlet, and the heat exchange tube located at the tail end is provided with a water outlet, and the tap water to be heated is introduced into the plurality of heat exchange tubes through the water inlet; waste hot water is introduced through the waste water inlet, and since the partition plate is provided with a waste water connection port, a plurality of the waste water connection ports are staggeredly arranged on opposite sides of the tank body, and the guide plate is located at both ends of the tank body, and the guide plate is provided with a guide hole group covering the plurality of heat exchange tubes, and the guide hole group includes a plurality of guide holes arranged at intervals, so that the waste hot water passes through the waste water connection port and the plurality of guide holes in sequence and then flows through the plurality of heat exchange tubes in sequence, and the waste hot water then flows out from the waste water outlet, and the waste hot water heats the plurality of heat exchange tubes, and the tap water in the heat exchange tubes absorbs heat and flows out through the water outlet.
[0010] In this solution, the multiple guide holes of the guide plate play the role of diverting the waste hot water, and the staggered arrangement of the multiple waste water connection ports makes the waste hot water evenly distributed. The waste hot water can cover multiple heat exchange tubes, thereby increasing the heat exchange area. In addition, multiple heat exchange tubes can be installed side by side to heat tap water with a larger water flow rate, which is especially suitable for a large amount of waste hot water. Therefore, the waste heat recovery efficiency can be improved and energy can be saved.
[0011] Furthermore, the bottom of the tank body is tilted downward toward the direction of the waste water outlet. This arrangement can drain the waste hot water in the tank body, prevent the waste hot water from being retained, and control the flow rate of the waste hot water.
[0012] Furthermore, the tank body is provided with a fixed bracket, and the heat exchange tube is connected to the fixed bracket and is distributed in a serpentine shape. The serpentine shape can increase the heat exchange area with waste hot water and improve the heat exchange efficiency. The bracket fixes the serpentine heat exchange tube as a whole, which is convenient for the heat exchange tube and the bracket to be removed and cleaned together in the later stage, and the heat exchange tube does not deform, there is no dead angle for cleaning, and the high heat exchange efficiency is maintained for a long time.
[0013] Furthermore, the plurality of guide holes of the guide hole group are evenly spaced, so that the waste hot water can be distributed more evenly.
[0014] Furthermore, the tank body is provided with a heat-insulating layer, which can slow down the speed of heat transfer to the outside and play a role in heat preservation.
[0015] Furthermore, the water inlet and the water outlet are coaxially rotatably connected with a movable nut. The external water pipe is provided with an external threaded nut used in conjunction with the movable nut, and the external threaded nut is screwed into the movable nut to achieve quick installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a cross-sectional view of a top view of a side-by-side heat recovery tank in Example 1;
[0017] Figure 2 This is a cross-sectional view of a top view of a side-by-side heat recovery tank in Example 3. DETAILED DESCRIPTION
[0018] The following is further described in detail through specific implementation methods:
[0019] The reference numerals in the drawings of the specification include: wastewater inlet 1, wastewater outlet 2, heat exchange tube 3, water outlet 4, wastewater connection port 5, partition plate 6, guide hole 7, water inlet 8, tank body 9, guide plate 10.
[0020] In the following statements, directional words such as "left", "right", "up", and "down" are all based on the directions shown in the diagram. In practice, if the corresponding structures are changed in the same direction based on the directions while keeping the relative positions unchanged, it will not affect the implementation of the plan.
[0021] Example 1: A parallel heat recovery tank, such as Figure 1 As shown, it includes a tank body 9 and two groups of heat exchange tubes 3, the two groups of heat exchange tubes 3 are connected end to end in sequence, the heat exchange tube 3 located at the head end is provided with a water outlet 4, and the heat exchange tube 3 located at the tail end is provided with a water inlet 8.
[0022] A partition plate 6 located between adjacent heat exchange tubes 3 is fixedly provided in the middle of the trough body 9, a wastewater connection port 5 is provided on the right side of the partition plate 6, a wastewater inlet 1 and a wastewater outlet 2 are fixedly provided on the trough body 9, and a guide plate 10 is symmetrically fixedly provided on the trough body 9. The guide plate 10 is provided with a plurality of guide hole groups covering two groups of heat exchange tubes 3, and each guide hole group includes a plurality of guide holes 7 evenly spaced.
[0023] In this scheme, two groups of heat exchange tubes 3 are located inside the water tank, and the two groups of heat exchange tubes 3 are connected end to end in sequence. The heat exchange tube 3 located at the head end is provided with a water outlet 4, and the heat exchange tube 3 located at the tail end is provided with a water inlet 8. The tap water to be heated is introduced into the two groups of heat exchange tubes 3 through the water inlet 8; waste hot water is introduced through the waste water inlet 1. Since the partition plate 6 is provided with a waste water connection port 5, the guide plate 10 is provided with a guide hole group covering the two groups of heat exchange tubes 3. Each guide hole group includes a plurality of guide holes 7 evenly spaced, so that the waste hot water flows through the two heat exchange tubes 3 in sequence according to the direction of the arrow, and the waste hot water then flows out from the waste water outlet 2. The waste hot water heats the two heat exchange tubes 3, and the tap water in the heat exchange tubes 3 is discharged outward through the water outlet 8 after absorbing heat.
[0024] In this solution, the multiple guide holes 7 of the guide plate 10 play a role in diverting the waste hot water and also play a role in extending the heat exchange time between the waste hot water and the heat exchange tube 3, so that the waste hot water is evenly distributed. The waste hot water can cover two heat exchange tubes 3, thereby increasing the heat exchange area, improving the waste heat recovery efficiency, and saving energy.
[0025] Embodiment 2: The difference from embodiment 1 is that the water outlet 4 and the water inlet 8 are coaxially connected with a movable nut. The external water pipe is provided with an external threaded nut used in conjunction with the internal thread of the movable nut, and the external threaded nut is screwed into the movable nut for quick installation.
[0026] Embodiment 3: The difference from Embodiment 1 is that Figure 2 As shown, the number of heat exchange tubes 3 is 3 groups.
[0027] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
Claims
1. A side-by-side heat recovery tank, characterized in that: It comprises a trough body and a plurality of heat exchange tubes, wherein the plurality of heat exchange tubes are connected end to end in sequence, the heat exchange tube at the head end is provided with a water outlet, and the heat exchange tube at the tail end is provided with a water inlet; the trough body is provided with a partition plate located between adjacent heat exchange tubes, the partition plate is provided with a wastewater connection port, and the plurality of wastewater connection ports are staggeredly arranged on opposite sides of the trough body; the trough body is also provided with a wastewater inlet and a wastewater outlet, guide plates are provided on both sides of the trough body, each guide plate is provided with a plurality of guide hole groups covering the plurality of heat exchange tubes, and each guide hole group comprises a plurality of guide holes arranged at intervals.
2. The side-by-side heat recovery tank according to claim 1, characterized in that: The bottom of the tank body is inclined downward toward the wastewater outlet.
3. The side-by-side heat recovery tank according to claim 2, characterized in that: The tank body is provided with a fixed bracket, and the heat exchange tubes are connected to the fixed bracket and distributed in a serpentine shape.
4. The side-by-side heat recovery tank according to claim 3, characterized in that: The plurality of guide holes in the guide hole group are evenly spaced.
5. The side-by-side heat recovery tank according to claim 4, characterized in that: The tank body is provided with a heat-insulating layer.
6. The side-by-side heat recovery tank according to claim 5, characterized in that: The water inlet and the water outlet are coaxially rotatably connected with a movable nut.