Cooling device for kitchen waste treatment wastewater

Abstract

The utility model relates to the technical field of cooling equipment, and provides a kitchen waste treatment wastewater cooling device which comprises a heat exchanger, a cooling water system and a cleaning system, the heat exchanger is provided with a shell pass and a tube pass, the tube pass is connected with a first liquid inlet pipe and a first liquid outlet pipe, and the first liquid inlet pipe and the first liquid outlet pipe are used for being detachably connected with a wastewater system; the cooling water system is connected with the shell side to form a first circulation loop, and the cooling water system is used for exchanging heat with wastewater; the cleaning system is used for cleaning scale in a tube pass and comprises a plurality of first control valves arranged on a first liquid inlet pipe and a first liquid outlet pipe respectively; two ends of the cleaning pipeline are respectively connected with the first liquid inlet pipe and the first liquid outlet pipe to form a second circulation loop; the pump is arranged on the cleaning pipeline. According to the cooling device for the kitchen waste treatment wastewater, the cleaning system is arranged, so that scales can be removed in time under the condition that the scales appear in the heat exchanger, and the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment technology, and in particular to a cooling device for wastewater from kitchen waste treatment. Background Technology

[0002] Food waste refers to waste generated in catering services, food processing, and household kitchens. Its main components include starch, cellulose, protein, lipids, and inorganic salts. Food waste has four high physicochemical characteristics: high water content, high organic matter content, high oil content, and high salt content. These characteristics result in complex wastewater being generated during the treatment of food waste, and its water quality characteristics differ significantly from ordinary municipal sewage.

[0003] Wastewater generated during food waste treatment has the following characteristics: high temperature, high alkalinity, high sludge content, and high salt content. These characteristics present numerous challenges to wastewater treatment. For example, high alkalinity easily leads to scaling inside heat exchange tubes, thus reducing heat exchange efficiency, while high salt content easily causes corrosion of the heat exchange tubes. Traditional heat exchangers often fail to function properly when treating this type of wastewater due to scaling and corrosion problems, resulting in poor heat exchange performance. This not only affects the cooling efficiency of the wastewater but may also cause the temperature of the biological reaction tank in the wastewater treatment system to rise continuously. When the temperature exceeds the suitable range for microbial survival, microbial activity will significantly decrease, thereby affecting the efficiency and effectiveness of the entire wastewater treatment system. Therefore, providing a new cooling device has become an urgent problem to be solved in the industry. Utility Model Content

[0004] This utility model provides a cooling device for wastewater from kitchen waste treatment, which solves the defect in the prior art where scale easily forms inside the heat exchange tubes, affecting the heat exchanger's heat exchange efficiency.

[0005] This utility model provides a cooling device for wastewater from food waste treatment, comprising: a heat exchanger having a shell side and a tube side, the tube side being connected to a first inlet pipe and a first outlet pipe, the first inlet pipe and the first outlet pipe being detachably connected to a wastewater system containing wastewater; a cooling water system connected to the shell side to form a first circulation loop, the cooling water system being used for heat exchange with the wastewater; a cleaning system connected to the first inlet pipe and the first outlet pipe to form a second circulation loop, the cleaning system being used for cleaning scale buildup in the tube side; the cleaning system comprising: a plurality of first control valves respectively disposed on the first inlet pipe and the first outlet pipe; a cleaning pipeline, the two ends of the cleaning pipeline being respectively connected to the first inlet pipe and the first outlet pipe to form the second circulation loop; and a pump disposed on the cleaning pipeline.

[0006] According to the present invention, a cooling device for kitchen waste treatment wastewater is provided, wherein the heat exchanger includes: a shell connected to the cooling water system; a plurality of heat exchange tubes, wherein the plurality of heat exchange tubes are arranged parallel to each other along the width direction of the shell, and each heat exchange tube is bent and coiled along the height direction of the shell, and both ends of each heat exchange tube are respectively connected to the first liquid inlet pipe and the first liquid outlet pipe.

[0007] According to the present invention, a cooling device for kitchen waste treatment wastewater is provided, each heat exchange tube includes: multiple tube bodies arranged parallel to each other along the height direction of the outer shell; multiple elbows, each elbow being used to connect one end of two adjacent tube bodies to connect multiple tube bodies into a whole; wherein, the elbows are detachably connected to the tube bodies.

[0008] According to the present invention, a cooling device for kitchen waste treatment wastewater is provided, the outer shell includes: a first shell, both ends of the first shell being open; a pair of end plates, each end plate having a plurality of elbows along its height direction, each end plate being detachably connected to one end of the first shell, and each elbow being connected to two adjacent pipes.

[0009] According to the present invention, a cooling device for kitchen waste treatment wastewater is provided, wherein the flow direction of the wastewater is opposite to the flow direction of the cooling water in the cooling system.

[0010] According to the present invention, a cooling device for wastewater from kitchen waste treatment is provided. The cooling water system includes: a second inlet pipe connected to the lower part of the shell side of the heat exchanger; a second outlet pipe connected to the upper part of the shell side of the heat exchanger; the first inlet pipe is disposed at the upper part of the heat exchanger, and the first outlet pipe is disposed at the lower part of the heat exchanger.

[0011] According to the present invention, a cooling device for kitchen waste treatment wastewater further includes: a second shell, which is sleeved on the outside of the first shell; and insulation cotton, which is sandwiched between the second shell and the first shell.

[0012] The cooling device for kitchen waste treatment wastewater provided by this utility model, by setting up a cleaning system, can promptly remove scale when it appears inside the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the cooling device for treating kitchen waste wastewater provided by this utility model.

[0015] Figure label:

[0016] 1. Heat exchanger; 2. First inlet pipe; 3. First outlet pipe; 4. First control valve; 5. Second shell; 11. Pipe body; 12. Elbow; 13. End plate; 14. Inlet hole; 15. Outlet hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figure 1 This invention describes a cooling device for treating wastewater from kitchen waste.

[0019] like Figure 1 As shown in the embodiment of this utility model, the cooling device for kitchen waste treatment wastewater includes: a heat exchanger 1, a cooling water system, and a cleaning system. The heat exchanger 1 has a shell side and a tube side, with a first inlet pipe 2 and a first outlet pipe 3 connected to the tube side. Both the first inlet pipe 2 and the first outlet pipe 3 are detachably connected to the wastewater system. The cooling water system is connected to the shell side to form a first circulation loop, and is used to introduce cooling water into the shell side of the heat exchanger 1. Wastewater enters the tube side of the heat exchanger 1 through the first inlet pipe 2, flows within the tube side, and the cooling water flows within the shell side, exchanging heat between the wastewater and the cooling water to lower the wastewater temperature. The cooled wastewater flows back to the wastewater system through the first outlet pipe 3.

[0020] Because kitchen wastewater has a high alkalinity, it easily forms scale in the tubes of heat exchanger 1, thus affecting heat exchange efficiency. To solve this problem, a cleaning system is provided in this embodiment of the invention. The cleaning system can be connected to heat exchanger 1 according to a set cycle to clean the inside of heat exchanger 1. The cleaning system can be connected to the first inlet pipe 2 and the first outlet pipe 3 to form a second circulation loop. The cleaning system contains a cleaning agent, which circulates in the second circulation loop to remove scale.

[0021] Optionally, in an embodiment of this utility model, the wastewater system may consist only of a fermentation tank, with the first inlet pipe 2 and the first outlet pipe 3 both connected to the fermentation tank.

[0022] The cooling device for kitchen waste treatment wastewater provided in this embodiment of the utility model, by setting up a cleaning system, can promptly remove scale when it appears inside the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger.

[0023] Optionally, in one embodiment of this utility model, the cleaning system includes: multiple first control valves 4, a cleaning pipeline, and a pump. Both the first inlet pipe 2 and the first outlet pipe 3 are equipped with first control valves 4. The two ends of the cleaning pipeline are connected to the first inlet pipe 2 and the first outlet pipe 3 respectively to form a second circulation loop. The pump is located within the cleaning pipeline.

[0024] Specifically, the first inlet pipe 2 and the first outlet pipe 3 can be periodically connected to the cleaning pipeline to form a second circulation loop. Before connecting to the cleaning pipeline, the first control valve 4 is closed; after connection, the first control valve 4 is opened. The cleaning pipeline contains cleaning agent, which circulates in the second circulation loop under the action of the pump to remove scale.

[0025] like Figure 1 As shown, in an embodiment of this utility model, the heat exchanger 1 includes a shell and heat exchange tubes. The shell is connected to a cooling water system. The heat exchange tubes are arranged in a coiled, bent configuration along the height of the shell, and both ends of the heat exchange tubes are connected to a first inlet pipe 2 and a first outlet pipe 3, respectively.

[0026] Specifically, in this embodiment, the heat exchange tubes are coiled in an S-shape, and wastewater flows along this S-shape. The cooling water in the cooling water system also flows in an S-shape in the shell side. Furthermore, the flow direction of the wastewater is opposite to that of the cooling water to ensure sufficient contact between the two for efficient heat exchange.

[0027] like Figure 1As shown, the cooling water system includes a second inlet pipe and a second outlet pipe. The second inlet pipe is connected to the lower part of the shell side of heat exchanger 1, and the second outlet pipe is connected to the upper part of the shell side. The outer shell is provided with an inlet hole 14 and an outlet hole 15. Specifically, the inlet hole 14 is located at the lower part of the outer shell, and the outlet hole 15 is located at the upper part of the outer shell. The inlet hole 14 is connected to the second inlet pipe, and the outlet hole 15 is connected to the second outlet pipe. Cooling water enters from the lower part of heat exchanger 1 and flows out from the upper part. The first inlet pipe 2 is located at the upper part of heat exchanger 1, and the first outlet pipe 3 is located at the lower part of heat exchanger 1. That is, wastewater flows into the upper part of heat exchanger 1 and flows out from the lower part, with opposite flow directions to improve heat exchange efficiency. Furthermore, because the wastewater has a high slag content, the flow direction of the wastewater is set to be from top to bottom to increase the flow velocity of the wastewater, thereby improving the cooling efficiency of the wastewater.

[0028] Furthermore, in a further embodiment of this utility model, there are multiple heat exchange tubes. These multiple heat exchange tubes are arranged parallel to each other along the width direction of the outer shell, and each heat exchange tube is bent and coiled along the height direction of the outer shell. Both ends of each heat exchange tube are connected to the first inlet pipe 2 and the first outlet pipe 3, respectively.

[0029] Specifically, the outer shell contains multiple heat exchange tubes. Wastewater enters each heat exchange tube through the first inlet pipe 2, flows along the S-shaped flow path formed by the heat exchange tube, and then flows out through the first outlet pipe 3. Cooling water enters the heat exchanger 1 through the second inlet pipe and flows along the outer wall of the heat exchange tube, also in an S-shaped flow direction. Wastewater and cooling water are located inside and outside the tubes, respectively, and flow in opposite directions to ensure full contact and efficient heat exchange.

[0030] Furthermore, each heat exchange tube includes multiple tube bodies 11 and multiple elbows 12. The multiple tube bodies 11 are arranged parallel to each other along the height direction of the outer shell, and each elbow 12 is used to connect one end of two adjacent tube bodies 11 to connect the multiple tube bodies 11 into a whole. The elbows 12 are detachably connected to the tube bodies 11 so that the elbows 12 can be removed for cleaning when blockage occurs.

[0031] Furthermore, the outer casing includes a first housing and a pair of end plates 13. Both ends of the first housing are open; that is, in this embodiment, the first housing can be a cuboid structure formed by a bottom plate, a top plate, a front side plate, and a rear side plate. Both ends of the first housing are connected to the pair of end plates 13. Each end plate 13 has multiple bends 12 along its height direction. When the end plate 13 is connected to the first housing, each bend 12 connects precisely to two adjacent pipe bodies 11, thereby connecting the multiple pipe bodies 11 into a whole.

[0032] In this embodiment, the end plate 13 is detachably connected to the first housing. The advantage of this is that when the elbow 12 becomes clogged, after the end plate 13 is removed, each elbow 12 is separated from the pipe body 11, and it is not necessary to disassemble each elbow 12, which reduces the disassembly time and improves the maintenance efficiency of the heat exchanger 1.

[0033] Optionally, in an embodiment of this invention, the diameter of the heat exchange tube is 50mm. Considering the characteristics of high salt content and strong corrosiveness of the wastewater, the heat exchange tube is made of highly corrosion-resistant stainless steel or other metals.

[0034] To reduce the impact of direct sunlight on cooling efficiency in summer, the cooling device for treating kitchen waste water provided in this embodiment of the invention further includes a second housing 5 and insulation cotton. The second housing 5 is fitted over the first housing, and the insulation cotton is sandwiched between the first housing and the second housing 5. This ensures effective cooling while also improving the aesthetics of the cooling device.

[0035] The cooling device for kitchen waste treatment wastewater provided in this embodiment of the invention has high heat exchange efficiency and can effectively reduce the temperature of the kitchen wastewater. It can be cleaned periodically during use to avoid scale buildup inside the heat exchange tubes. When blockage occurs, the bend tubes can be disassembled for cleaning, ensuring the heat exchange efficiency of the heat exchanger. At the same time, the cooling device for kitchen waste treatment wastewater provided in this embodiment of the invention has a small footprint, simple structure, low manufacturing cost, and wide adaptability to various working conditions, making it suitable for widespread use.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cooling device for wastewater from food waste treatment, characterized in that, include: A heat exchanger having a shell side and a tube side, the tube side being connected to a first inlet pipe and a first outlet pipe, the first inlet pipe and the first outlet pipe being detachably connected to a wastewater system, the wastewater system containing wastewater; A cooling water system is connected to the shell side to form a first circulation loop, and the cooling water system is used for heat exchange with wastewater; A cleaning system is connected to the first inlet pipe and the first outlet pipe to form a second circulation loop. The cleaning system is used to clean the scale inside the pipe. The cleaning system includes: Multiple first control valves are respectively installed in the first inlet pipe and the first outlet pipe; A cleaning pipeline, the two ends of which are respectively connected to the first inlet pipe and the first outlet pipe to form the second circulation loop; A pump is installed in the cleaning pipeline.

2. The cooling device for kitchen waste treatment wastewater according to claim 1, characterized in that, The heat exchanger includes: The outer casing is connected to the cooling water system; Multiple heat exchange tubes are arranged parallel to each other along the width direction of the outer shell, and each heat exchange tube is bent and coiled along the height direction of the outer shell. The two ends of each heat exchange tube are respectively connected to the first liquid inlet pipe and the first liquid outlet pipe.

3. The cooling device for kitchen waste treatment wastewater according to claim 2, characterized in that, Each of the heat exchange tubes includes: Multiple tubes are arranged parallel to each other along the height direction of the outer shell; Multiple elbows, each elbow being used to connect one end of two adjacent pipe bodies to connect multiple pipe bodies into a whole; cooling system The elbow is detachably connected to the pipe body.

4. The cooling device for kitchen waste treatment wastewater according to claim 3, characterized in that, The outer casing includes: A first housing, with both ends of the first housing open; A pair of end plates, each end plate having a plurality of elbows along its height direction, each end plate being detachably connected to one end of the first housing, and each elbow being connected to two adjacent pipe bodies.

5. The cooling device for kitchen waste treatment wastewater according to claim 3, characterized in that, The flow direction of the wastewater is opposite to the flow direction of the cooling water in the cooling system.

6. The cooling device for kitchen waste treatment wastewater according to claim 5, characterized in that, The cooling water system includes: The second liquid inlet pipe is connected to the lower part of the shell side of the heat exchanger; The second liquid outlet pipe is connected to the upper part of the shell side of the heat exchanger; The first liquid inlet pipe is located at the upper part of the heat exchanger, and the first liquid outlet pipe is located at the lower part of the heat exchanger.

7. The cooling device for kitchen waste treatment wastewater according to claim 4, characterized in that, Also includes: The second housing is fitted over the outside of the first housing; Insulating cotton is sandwiched between the second shell and the first shell.

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