Fluid heat energy exchange device

Abstract

The utility model relates to a fluid heat energy exchange device which comprises a box body, a partition plate sealing plate, a buffer area partition plate, a first flow channel partition plate, a second flow channel partition plate, a heat exchange pipe, a clear water inlet pipe, a clear water outlet pipe, a sewage inlet pipe, a sewage outlet pipe, a sewage outlet, a heat exchange pipe support and a heat exchange pipe support fixing plate. The box body is composed of a left side plate, a right side plate, a front side plate, a rear side plate, a bottom plate and a cover plate. The device is simple and reasonable in structure and convenient and fast to manufacture, and the manual manufacturing cost is effectively reduced. The device is simple in structure, high in practicability and wide in applicability, can exchange and use water and heat energy in various production machines or in a centralized mode, meets various production technological processes, and accordingly achieves assembly line work. Transmission and power loss are avoided, and schedule operation cost and manual maintenance cost are saved. The heat exchanger is resistant to high pressure and high temperature, high in heat exchange efficiency and not easy to block. And the heat exchange tube assembly is convenient to disassemble and assemble, and the replaceability of the heat exchange tube assembly is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy-saving and environmental protection devices, and specifically discloses a fluid thermal energy exchange device that can be applied to sewage and other waste heat sewage for energy conservation. Background Technique

[0002] With the development of the economic society, the air pollution caused by energy consumption and energy emissions has attracted more and more attention. Reducing the emission pollution and energy consumption of enterprises has become an increasingly urgent issue, and its energy consumption is an important factor in the production cost of enterprises.

[0003] Secondly, a large amount of waste heat sewage is not conducive to the reproduction of biochemical bacteria. Effectively reducing the temperature of the discharged sewage and maximizing the absorption of sewage thermal energy to reduce energy consumption is the top priority for all production enterprises.

[0004] In the prior art, enterprises will use finned tube heat exchangers, rotating disk heat exchangers or shell-and-tube heat exchangers to recover the thermal energy of the discharged waste heat sewage. However, the common problems of domestic sewage heat exchange devices at present are:

[0005] 1. The finned tube heat exchanger has a simple structure and uses the radiator principle for heat exchange. However, in textile sites and production environments, it is easy for fluff and other garbage to get stuck in the gaps of the fins. Once accumulated, it is not easy to clean, and cleaning requires long-term shutdown.

[0006] 2. The rotating disk heat exchanger uses an active rotating disk for heat exchange between cold and hot. The manufacturing requirements for a single disk and the roundness requirements for the overall multi-group disks after manufacturing are relatively high. Due to the use of rotational motion, the wear resistance requirements for the rotary joints of this machine are also relatively high. Once damaged, it will leak water. And in order to improve the heat exchange effect, the disks are made of thin plates, stamped into sheets and then stacked and welded at the edges, and some areas are fixed with bolts or rivets to withstand thermal expansion. However, in the long-term operation process, thermal expansion and contraction are inevitable. Therefore, the long-term fatigue of the plates causes the fixing points to become loose, and even the plates crack.

[0007] 3. The shell-and-tube heat exchanger structure uses a large pipe end face to weld a honeycomb-shaped sealing plate, and then many small pipes are welded to the holes of the sealing plate. After leaving some space for the flow of small pipes, the large pipe inlet and outlet are tightened with a head, so that the large pipe and the small pipes become independent flow channels. Finally, the inlet and outlet are opened on the outside of the large pipe to pass clean water, and the sewage flows through the small pipes for heat exchange; but in papermaking and printing sewage, there are a large amount of slurries and fibers that are easy to adhere to the inside of the small pipes and are difficult to clean. Over time, the phenomenon of blockage of the tube walls is relatively common, and even the head of the large pipe needs to be manually disassembled regularly to clean the small pipes.

[0008] 4. In addition, the adhesion problem of the heat exchange interface of the above type is most obvious especially in textile desizing and batik wastewater. The equipment blockage problem: Among the sewage in the textile dyeing and finishing industry, the blockage of equipment pipelines caused by fibers and particulate suspensions is most serious in plate heat exchangers. Power consumption: Since some anti-fouling and anti-scaling measures are added, the power consumption of the equipment increases. Filtration and scaling problems: Equipment blockage and scaling problems caused by the filtration quality not meeting the requirements of the heat exchanger and the high hardness of the raw water. Operation and maintenance: Equipment operation and maintenance problems caused by the above problems. Therefore, many unsolvable problems are encountered in production, and only a very low heat exchange efficiency can be achieved by the heat exchange device. Summary of the Invention

[0009] The purpose of the present utility model is to overcome the deficiencies existing in the prior art and provide a fluid thermal energy exchange device with high heat exchange efficiency, not easily blocked, low maintenance cost and applicable to various waste heat sewage.

[0010] According to the technical solution provided by the present utility model, the fluid thermal energy exchange device includes a box body, a partition sealing plate, a buffer zone partition, a first flow channel partition, a second flow channel partition, heat exchange tubes, a clean water inlet pipe, a clean water outlet pipe, a sewage inlet pipe, a sewage outlet pipe, a sewage discharge port, heat exchange tube supports and heat exchange tube support fixing plates;

[0011] The box body is composed of a left side plate, a right side plate, a front side plate, a rear side plate, a bottom plate and a cover plate. The left side plate, the right side plate, the front side plate, the rear side plate and the bottom plate are fixed together, and the cover plate covers the upper ends of the left side plate, the right side plate, the front side plate and the rear side plate;

[0012] A partition sealing plate is fixed on the upper surface of the bottom plate near the left side plate. The front end of the partition sealing plate is at a certain distance from the rear side of the front side plate, and the rear end of the partition sealing plate is at a certain distance from the front side of the rear side plate. A buffer zone partition is fixed on the left side surface of the partition sealing plate. The lower end of the buffer zone partition is fixed to the upper surface of the bottom plate, and the left end of the buffer zone partition is fixed to the right side surface of the left side plate;

[0013] On the right side of the partition sealing plate, a number of first flow channel partitions are fixed. The lower end of the first flow channel partition is fixed to the upper surface of the bottom plate. The first flow channel partitions are arranged at intervals in the front-rear direction. The right end of the first flow channel partition is at a certain distance from the left side of the right side plate. On the left side of the right side plate, a number of second flow channel partitions are fixed. The number of second flow channel partitions is one less than that of the first flow channel partitions. The lower end of the second flow channel partition is fixed to the upper surface of the bottom plate. The second flow channel partitions are arranged at intervals in the front-rear direction. The left end of the second flow channel partition is at a certain distance from the right side of the partition sealing plate. There is one second flow channel partition between two adjacent first flow channel partitions, and there is one first flow channel partition between two adjacent second flow channel partitions. Sewage flow channels are formed between the first flow channel partition at the frontmost and the front side plate, between adjacent first flow channel partitions and second flow channel partitions, and between the first flow channel partition at the rearmost and the rear side plate. A number of layers of heat exchange tubes are arranged in the sewage flow channels;

[0014] One end of the heat exchange tube is connected to the fresh water inlet pipe, and the other end of the heat exchange tube is connected to the fresh water outlet pipe. A sewage inlet pipe, a sewage outlet pipe and a sewage discharge port are fixed to the left side of the left side plate. The installation position of the sewage discharge port is lower than that of the sewage outlet pipe. The fresh water inlet pipe and the sewage outlet pipe are arranged on one side of the buffer partition, and the fresh water outlet pipe, the sewage inlet pipe and the sewage discharge port are arranged on the other side of the buffer partition;

[0015] On the cover plate near the fresh water inlet pipe and the fresh water outlet pipe, there are notches that cooperate with the fresh water inlet pipe and the fresh water outlet pipe;

[0016] In the box body, there are several groups of heat exchange tube supports that can fix and layer the heat exchange tubes. The several groups of heat exchange tube supports are arranged at intervals in the length direction of the heat exchange tubes. The upper end of each group of heat exchange tube supports is fixed to a heat exchange tube support fixing plate.

[0017] Preferably, the installation positions of the sewage inlet pipe and the sewage discharge port are lower than that of the sewage outlet pipe.

[0018] Preferably, the inner wall of the heat exchange tube has spiral textures.

[0019] Preferably, a liftable and adjustable overflow port is installed on the right side of the left side plate corresponding to the position of the sewage outlet pipe.

[0020] Preferably, a fresh water inlet pipe cleaning port is installed at the upper end of the fresh water inlet pipe.

[0021] Preferably, a fresh water outlet pipe cleaning port is installed at the lower end of the fresh water outlet pipe.

[0022] Preferably, the distance between the partition sealing plate and the left side plate is greater than the width of the sewage flow channel.

[0023] The utility model has the following advantages compared with the existing technology:

[0024] 1. The structure is simple and reasonable, the production is convenient and fast, and the labor production cost is effectively reduced.

[0025] 2. It has strong practicability and wide applicability, can be used for heat exchange of medium water heat energy in various production machines or centrally, meets various production process flows, and thus realizes assembly line operation.

[0026] 3. Without transmission and power loss, the daily operation cost and manual maintenance cost are saved.

[0027] 4. It is resistant to high pressure, high temperature, has high heat exchange efficiency and is not easy to be blocked.

[0028] 5. The heat exchange tube assembly is convenient to disassemble and assemble, and the replaceability of the heat exchange tube assembly is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the front view of the utility model.

[0030] Figure 2 is the enlarged left view of the utility model.

[0031] Figure 3 is the top view of the utility model.

[0032] Figure 4 is the half-sectional top view of the utility model.

[0033] Figure 5 is the enlarged half-sectional left view of the utility model.

[0034] Figure 6 is the enlarged half-sectional left view of the clear water inlet pipe and the clear water outlet pipe in the utility model.

[0035] Figure 7 is the front view of the heat exchange tube assembly in the utility model.

[0036] Figure 8 is the enlarged left view of the heat exchange tube assembly in the utility model.

[0037] Figure 9 is the top view of the heat exchange tube assembly in the utility model. DETAILED DESCRIPTION OF THE INVENTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0039] A fluid thermal energy exchange device, as Figures 1-9 shown, which includes a box body 1, a partition sealing plate 2.1, a buffer zone partition 2.2, a first flow channel partition 2.3, a second flow channel partition 2.4, heat exchange tubes 3, a clean water inlet pipe 4.1, a clean water outlet pipe 4.2, a sewage inlet pipe 5.1, a sewage outlet pipe 5.2, a sewage discharge port 6, a heat exchange tube support 7.1, and a heat exchange tube support fixing plate 7.2;

[0040] The box body 1 is composed of a left side plate 1.1, a right side plate 1.2, a front side plate 1.3, a rear side plate 1.4, a bottom plate 1.5, and a cover plate 1.6. The left side plate 1.1, the right side plate 1.2, the front side plate 1.3, the rear side plate 1.4, and the bottom plate 1.5 are fixed together, and the cover plate 1.6 covers the upper ends of the left side plate 1.1, the right side plate 1.2, the front side plate 1.3, and the rear side plate 1.4;

[0041] A partition sealing plate 2.1 is fixed on the upper surface of the bottom plate 1.5 near the position of the left side plate 1.1. The front end of the partition sealing plate 2.1 is at a certain distance from the rear side surface of the front side plate 1.3, and the rear end of the partition sealing plate 2.1 is at a certain distance from the front side surface of the rear side plate 1.4. A buffer zone partition 2.2 is fixed on the left side surface of the partition sealing plate 2.1. The lower end of the buffer zone partition 2.2 is fixed to the upper surface of the bottom plate 1.5, and the left end of the buffer zone partition 2.2 is fixed to the right side surface of the left side plate 1.1. By providing the partition sealing plate 2.1 and the buffer zone partition 2.2, two independent sewage buffer zones are formed at the left end of the box body 1, and it also avoids the short circuit of the waste heat sewage after entering the box body 1.

[0042] On the right side surface of the partition seal plate 2.1, a number of first flow channel partition plates 2.3 are fixed. The lower end parts of the first flow channel partition plates 2.3 are fixed to the upper surface of the bottom plate 1.5. The first flow channel partition plates 2.3 are arranged at intervals in the front-back direction. The right end parts of the first flow channel partition plates 2.3 are at a certain distance from the left side surface of the right side plate 1.2. On the left side surface of the right side plate 1.2, a number of second flow channel partition plates 2.4 are fixed. The number of the second flow channel partition plates 2.4 is one less than that of the first flow channel partition plates 2.3. The lower end parts of the second flow channel partition plates 2.4 are fixed to the upper surface of the bottom plate 1.5. The second flow channel partition plates 2.4 are arranged at intervals in the front-back direction. The left end parts of the second flow channel partition plates 2.4 are at a certain distance from the right side surface of the partition seal plate 2.1. One second flow channel partition plate 2.4 is arranged between two adjacent first flow channel partition plates 2.3, and one first flow channel partition plate 2.3 is arranged between two adjacent second flow channel partition plates 2.4. Sewage flow channels are formed between the first flow channel partition plate 2.3 at the forefront and the front side plate 1.3, between adjacent first flow channel partition plates 2.3 and second flow channel partition plates 2.4, and between the first flow channel partition plate 2.3 at the rearmost and the rear side plate 1.4. A number of layers of heat exchange tubes 3 are arranged in the sewage flow channels;

[0043] One end of the heat exchange tube 3 is connected to the fresh water inlet pipe 4.1, and the other end of the heat exchange tube 3 is connected to the fresh water outlet pipe 4.2. A sewage inlet pipe 5.1, a sewage outlet pipe 5.2 and a sewage discharge port 6 are fixed to the left side surface of the left side plate 1.1. The sewage accumulated in the sewage flow channels can be discharged through the sewage discharge port 6. The installation position of the sewage discharge port 6 is lower than that of the sewage outlet pipe 5.2. The fresh water inlet pipe 4.1 and the sewage outlet pipe 5.2 are arranged on the front side of the buffer partition plate 2.2, and the fresh water outlet pipe 4.2, the sewage inlet pipe 5.1 and the sewage discharge port 6 are arranged on the rear side of the buffer partition plate 2.2; thus, sewage and fresh water form a convection to improve the heat exchange efficiency;

[0044] On the cover plate 1.6 near the fresh water inlet pipe 4.1 and the fresh water outlet pipe 4.2, there are notches matching with the fresh water inlet pipe 4.1 and the fresh water outlet pipe 4.2, which is convenient for the installation of the fresh water inlet pipe 4.1 and the fresh water outlet pipe 4.2, and meanwhile, the whole box body 1 is insulated and dust-proof;

[0045] Inside the box body 1, there are several groups of heat exchange tube brackets 7.1 that can fix and layer the heat exchange tubes 3. The several groups of heat exchange tube brackets 7.1 are spaced apart in the length direction of the heat exchange tubes 3. The upper end of each group of heat exchange tube brackets 7.1 is fixed to a heat exchange tube bracket fixing plate 7.2. The heat exchange tube assembly is composed of the heat exchange tubes 3, the heat exchange tube brackets 7.1, and the heat exchange tube bracket fixing plate 7.2. Through the heat exchange tube bracket fixing plate 7.2, it is convenient for the hoisting mechanism to hoist and place the heat exchange tube assembly in the box body 1. In the present utility model, the heat exchange tube assembly can be separated from the box body 1. Once any component in the heat exchange tube assembly is damaged, it can be replaced, and if there is a problem with any layer of the heat exchange tubes 3, it can be replaced at any time.

[0046] The installation positions of the sewage inlet pipe 5.1 and the sewage discharge port 6 are lower than the installation position of the sewage outlet pipe 5.2, forming a liquid level state where sewage enters from the lower part and exits from the higher part, which helps to increase the liquid level and make the heat exchange more sufficient.

[0047] The inner wall of the heat exchange tube 3 has spiral textures, which helps to relieve the pressure of the heat exchange tube 3, can slow down the flow rate of the liquid in the heat exchange tube 3, increase the contact surface, and improve the heat exchange efficiency.

[0048] On the right side of the left side plate 1.1 corresponding to the position of the sewage outlet pipe 5.2, a liftable and adjustable overflow port 8 is installed. It can make the sewage in the box body 1 overflow into the overflow port 8, and control the sewage level in the box body 1 by adjusting the height of the overflow port 8.

[0049] At the upper end of the clean water inlet pipe 4.1, a clean water inlet pipe cleaning port 4.11 is installed. The clean water inlet pipe cleaning port 4.11 is convenient for the discharge of cleaning liquid and impurities when cleaning the inner wall of the clean water inlet pipe 4.1 in the future.

[0050] At the lower end of the clean water outlet pipe 4.2, a clean water outlet pipe cleaning port 4.21 is installed. The clean water outlet pipe cleaning port 4.21 is convenient for the discharge of cleaning liquid and impurities when cleaning the inner wall of the clean water outlet pipe 4.2 in the future.

[0051] The distance between the partition sealing plate 2.1 and the left side plate 1.1 is greater than the width of the sewage flow channel.

[0052] The working principle of the present utility model is:

[0053] In the present utility model, waste heat sewage from the outside is introduced through the sewage inlet pipe 5.1 and then enters the sewage flow channel, flowing in a serpentine one-way manner to flow out from the sewage outlet pipe 5.2. Clean cold water enters the heat exchange pipe 3 through the clean water inlet pipe 4.1 and flows in a one-way manner, filling the entire heat exchange pipe 3 with clean water and flowing out from the clean water outlet pipe 4.2; during the operation of the fluid thermal energy exchange device of the present utility model, since the waste heat sewage and the clean cold water flow in opposite directions in the sewage flow channel and the heat exchange pipe 3 respectively, their water qualities are not polluted with each other. During the process of the clean cold water flowing from the clean water inlet pipe 4.1 to the clean water outlet pipe 4.2, it gradually absorbs the thermal energy of the waste heat sewage, so that the clean hot water discharged from the clean water outlet pipe 4.2 can be used as the hot water of the equipment. And the temperature of the sewage discharged when the waste heat sewage passes through the sewage inlet pipe 5.1 to the sewage outlet pipe 5.2 also drops to the same extent, which is beneficial to sewage discharge and the reproduction of biochemical bacteria.

[0054] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A fluid heat exchange device, characterized in that: It comprises a box body (1), a partition sealing plate (2.1), a buffer partition (2.2), a first flow channel partition (2.3), a second flow channel partition (2.4), a heat exchange tube (3), a clean water inlet pipe (4.1), a clean water outlet pipe (4.2), a sewage inlet pipe (5.1), a sewage outlet pipe (5.2), a sewage outlet (6), a heat exchange tube bracket (7.1) and a heat exchange tube bracket fixing plate (7.2); The box body (1) is composed of a left side plate (1.1), a right side plate (1.2), a front side plate (1.3), a rear side plate (1.4), a bottom plate (1.5) and a cover plate (1.6); the left side plate (1.1), the right side plate (1.2), the front side plate (1.3), the rear side plate (1.4) and the bottom plate (1.5) are fixed together; and the cover plate (1.6) covers the upper ends of the left side plate (1.1), the right side plate (1.2), the front side plate (1.3) and the rear side plate (1.4); A partition sealing plate (2.1) is fixed on the upper surface of the bottom plate (1.5) near the left side plate (1.1), the front end of the partition sealing plate (2.1) is a distance away from the rear side of the front side plate (1.3), the rear end of the partition sealing plate (2.1) is a distance away from the front side of the rear side plate (1.4), and a buffer partition (2.2) is fixed on the left side of the partition sealing plate (2.1), the lower end of the buffer partition (2.2) is fixed to the upper surface of the bottom plate (1.5), and the left end of the buffer partition (2.2) is fixed to the right side of the left side plate (1.1); A plurality of first flow channel baffles (2.3) are fixed on the right side of the baffle sealing plate (2.1), the lower end of the first flow channel baffles (2.3) is fixed to the upper surface of the bottom plate (1.5), the first flow channel baffles (2.3) are arranged at intervals in the front-to-back direction, the right end of the first flow channel baffles (2.3) is a distance away from the left side of the right side plate (1.2), a plurality of second flow channel baffles (2.4) are fixed on the left side of the right side plate (1.2), the number of the second flow channel baffles (2.4) is one less than the number of the first flow channel baffles (2.3), the lower end of the second flow channel baffles (2.4) is fixed to the upper surface of the bottom plate (1.5), the second flow channel baffles (2.4) are arranged at intervals in the front-to-back direction, the right end of the first flow channel baffles (2.3) is a distance away from the left side of the right side plate (1.2), The second flow channel baffle (2.4) is arranged at intervals in the front-to-back direction, the left end of the second flow channel baffle (2.4) is a distance away from the right side of the baffle sealing plate (2.1), a second flow channel baffle (2.4) is arranged between two adjacent first flow channel baffles (2.3), a first flow channel baffle (2.3) is arranged between two adjacent second flow channel baffles (2.4), a sewage flow channel is formed between the first flow channel baffle (2.3) at the front and the front side plate (1.3), between the adjacent first flow channel baffles (2.3) and the second flow channel baffles (2.4), and between the first flow channel baffle (2.3) at the rear and the rear side plate (1.4), and a plurality of layers of heat exchange tubes (3) are arranged in the sewage flow channel; One end of the heat exchange tube (3) is connected to the clean water inlet pipe (4.1), and the other end of the heat exchange tube (3) is connected to the clean water outlet pipe (4.2). A sewage inlet pipe (5.1), a sewage outlet pipe (5.2) and a sewage outlet (6) are fixed on the left side of the left plate (1.1). The installation position of the sewage outlet (6) is lower than the installation position of the sewage outlet pipe (5.2). The clean water inlet pipe (4.1) and the sewage outlet pipe (5.2) are arranged on one side of the buffer zone partition (2.2), and the clean water outlet pipe (4.2), the sewage inlet pipe (5.1) and the sewage outlet (6) are arranged on the other side of the buffer zone partition (2.2); A notch matching the clean water inlet pipe (4.1) and the clean water outlet pipe (4.2) is provided on the cover plate (1.6) near the clean water inlet pipe (4.1) and the clean water outlet pipe (4.2); A plurality of groups of heat exchange tube supports (7.1) capable of fixing and layering the heat exchange tubes (3) are provided in the box body (1); the plurality of groups of heat exchange tube supports (7.1) are distributed at intervals in the length direction of the heat exchange tubes (3); and the upper end of each group of heat exchange tube supports (7.1) is fixed to a heat exchange tube support fixing plate (7.2).

2. The fluid heat exchange device according to claim 1, characterized in that: The installation positions of the sewage inlet pipe (5.1) and the sewage outlet (6) are lower than the installation position of the sewage outlet pipe (5.2).

3. The fluid heat exchange device according to claim 1, characterized in that: The inner wall of the heat exchange tube (3) has a spiral texture.

4. The fluid heat exchange device according to claim 1, characterized in that: An overflow port (8) that can be raised and lowered and adjusted is installed on the right side of the left side plate (1.1) corresponding to the position of the sewage outlet pipe (5.2).

5. The fluid heat exchange device according to claim 1, characterized in that: A clean water inlet pipe cleaning port (4.11) is installed at the upper end of the clean water inlet pipe (4.1).

6. The fluid heat exchange device according to claim 1, characterized in that: A clean water outlet pipe cleaning port (4.21) is installed at the lower end of the clean water outlet pipe (4.2).

7. The fluid heat exchange device according to claim 1, characterized in that: The distance between the partition sealing plate (2.1) and the left side plate (1.1) is greater than the width of the sewage flow channel.

Images