Hot water tank with high heat exchange efficiency

Abstract

The utility model discloses a hot water tank with high heat exchange efficiency, which belongs to the technical field of heating and comprises a tank body, a low-pressure steam main pipeline and a desalted water main pipeline. The upper and lower ends of the steam pipeline tee joint are fixedly connected with the steam outlet upper nozzle and the steam outlet lower nozzle respectively; the low-pressure steam main pipeline is fixedly connected with a steam pipeline tee joint, and the low-pressure steam main pipeline is at least connected with a steam main pipeline middle section self-adjusting valve and a steam pipeline check valve; the desalted water main pipeline is correspondingly connected to the top end of the tank body, and the desalted water main pipeline is at least connected with a desalted water main pipeline self-adjusting valve; and the steam main pipe middle section self-regulating valve and the desalted water main pipe self-regulating valve are in interlocking control. By optimizing the structure, the service life is prolonged, faults and safety problems are reduced, use convenience and heat exchange efficiency are improved, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of heating technology, and in particular relates to a hot water tank with high heat exchange efficiency. Background Technology

[0002] Hot water tanks, as industrial water heating devices, are widely used in numerous industrial sectors such as chemical, pharmaceutical, and food processing. Against the backdrop of the global energy crisis, energy conservation and emission reduction requirements have increased across industries. For example, in many industrial heating and cooling processes, traditional water tank heat exchangers are inefficient and wasteful of energy. Many industrial sectors have strict requirements for water temperature and heat exchange efficiency; for instance, chemical reactions require precise temperature control, which existing water tank heat exchangers cannot meet, impacting product quality and production efficiency. Traditional heat exchange equipment, due to its low efficiency, consumes more energy, leading to increased greenhouse gas emissions. Improving the heat exchange efficiency of water tanks can reduce energy consumption and emissions, meeting environmental protection requirements, and related policies are driving technological improvements and innovations in this area.

[0003] Currently, there are two main methods for heating water tanks in chemical production processes: (1) The hot water tanks currently in use are mainly heated indirectly by 1.37MPa steam coils to obtain hot water at 90~95℃ for production use. The heat exchange structure of the hot water tank is simple, but the steam heat exchange efficiency is not high. The hot condensate after the steam indirect heat exchange in the hot water tank is discharged into the ditch. In actual use, the waste heat of steam and steam condensate are not fully utilized; (2) Some industrial fields use direct heating (directly connected to the steam pipeline for heating). In actual use, the heating efficiency is not high, water hammer is easy to occur, the steam pipeline vibrates greatly, and the pipeline flange connection is prone to leakage, leading to production accidents and personnel injury accidents. Utility Model Content

[0004] Technical problem to be solved: In view of the problems existing in the use of hot water tanks in the background art, this utility model provides a hot water tank with high heat exchange efficiency, thereby improving heat exchange efficiency and reducing energy consumption.

[0005] Technical solution: The present invention provides a hot water tank with high heat exchange efficiency, the hot water tank comprising:

[0006] The tank body has a nozzle support and a steam pipe tee fixedly mounted on the nozzle support in the lower part of the tank body. The upper and lower ends of the steam pipe tee are fixedly connected to the upper steam outlet nozzle and the lower steam outlet nozzle, respectively.

[0007] A low-pressure steam main pipeline is fixedly connected to a steam pipeline tee, and at least a steam main pipe intermediate self-regulating valve and a steam pipeline check valve are connected to the low-pressure steam main pipeline.

[0008] The demineralized water main pipeline is connected to the top of the tank and is equipped with at least one self-regulating valve for the main demineralized water pipe.

[0009] The automatic regulating valve in the middle section of the steam main pipe is interlocked with the automatic regulating valve in the demineralized water main pipe.

[0010] Preferably, a low-pressure steam inlet main valve is provided at the inlet end of the low-pressure steam main pipeline;

[0011] The low-pressure steam main pipeline is equipped with a manual valve at the front end of the automatic regulating valve in the middle section of the steam main pipe and a manual valve at the rear end of the steam main pipe, respectively.

[0012] Preferably, the low-pressure steam main pipeline is connected to a steam branch pipeline at the front end of the manual valve of the main steam pipe and at the rear end of the manual valve of the main steam pipe, and a manual valve for the steam branch pipeline is connected to the steam branch pipeline.

[0013] Preferably, a hot water tank vent pipe is provided at the top of the tank.

[0014] Preferably, the demineralized water main pipeline is equipped with a manual valve at the front end of the demineralized water main pipeline and a manual valve at the rear end of the demineralized water main pipeline, respectively.

[0015] Preferably, the main demineralized water pipeline is connected to a demineralized water branch pipeline at the front end of the manual valve of the main demineralized water pipeline and at the rear end of the manual valve of the main demineralized water pipeline, and a manual valve for the demineralized water branch pipeline is connected to the demineralized water branch pipeline.

[0016] Preferably, the bottom of the tank is provided with an overheated desalinated water outlet pipe.

[0017] Preferably, the top of the tank is provided with a manhole for the upper part of the hot water tank.

[0018] Preferably, the tank is equipped with a liquid level sensor and a temperature sensor, and the liquid level sensor and the temperature sensor are electrically connected to the control mechanism.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This utility model features upper and lower corresponding nozzles inside the hot water tank. Powered by steam, the nozzles cause the liquid to rotate within the tank, accelerating heat exchange, breaking down the boundary layer, and preventing large temperature differences caused by inadequate local heating. This achieves fluid control and enhancement; improves the heat transfer process, increases the heat exchange area, and optimizes fluid flow, allowing for faster and more complete heat exchange between media. This results in a more uniform water temperature distribution within the tank, preventing localized overheating or undercooling and ensuring that the fluid throughout the tank exchanges heat under relatively consistent temperature conditions. This improves the stability and reliability of heat exchange, significantly shortens heating time, and enhances overall heat exchange efficiency. Furthermore, it reduces energy consumption, achieving the same or better heat exchange effect with less energy, improving tank heating efficiency, and lowering operating costs.

[0021] 2. This hot water tank achieves efficient heat exchange within a limited space, making it easy to install and arrange; the optimized structure of the hot water tank extends its service life, reduces tank failures and safety issues, lowers the manpower, material and financial costs caused by equipment failures and maintenance, reduces the burden of frequent equipment maintenance, and improves ease of use.

[0022] 3. Adding a steam pipeline check valve to the main pressurized steam pipeline entering the water tank can prevent hot water in the hot water tank from flowing back into the steam pipeline when the steam heating stops.

[0023] 4. The tank body is made of stainless steel with excellent thermal conductivity, which is corrosion resistant, high strength and conducive to heat transfer; its exterior is wrapped with polyurethane insulation material to reduce heat loss.

[0024] This invention also has other beneficial effects, which are described in the embodiments section of the specification and will not be repeated here. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the hot water tank with high heat exchange efficiency according to this utility model.

[0026] Attached reference numerals: 100, Hot water tank; 1, Tank body; 2, Low-pressure steam main pipeline; 3, Low-pressure steam inlet main valve; 4, Steam main pipeline front manual valve; 5, Steam main pipeline mid-section self-regulating valve; 6, Steam branch pipeline; 7, Steam branch pipeline manual valve; 8, Steam main pipeline rear manual valve; 9, Steam pipeline check valve; 10, Nozzle bracket; 11, Steam pipeline tee; 12, Steam outlet upper nozzle; 13, Steam outlet lower nozzle; 14, Demineralized water main pipeline front manual valve; 15, Demineralized water main pipeline self-regulating valve; 16, Demineralized water main pipeline rear manual valve; 17, Demineralized water branch pipeline; 18, Demineralized water branch pipeline manual valve; 19, Demineralized water main pipeline; 20, Hot water tank vent pipeline; 21, Hot water tank upper manhole; 22, Liquid level sensor; 23, Temperature sensor; 24, Superheated demineralized water outlet pipeline. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings. Figure 1 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0028] like Figure 1 As shown, this utility model discloses a hot water tank with high heat exchange efficiency. The hot water tank 100 includes a tank body 1, a low-pressure steam main pipe 2, and a demineralized water main pipe 19. The tank body 1 is made of stainless steel with excellent thermal conductivity, which is corrosion-resistant, high-strength, and facilitates heat transfer. The tank body 1 is wrapped with polyurethane insulation material to reduce heat loss. A nozzle support 10 and a steam pipe tee 11 fixedly mounted on the nozzle support 10 are provided in the lower part of the tank body 1. The upper and lower ends of the steam pipe tee 11 are fixedly connected to the upper steam outlet nozzle 12 and the lower steam outlet nozzle 13, respectively. The nozzle structure rotates along the connection end under the action of low-pressure steam, thereby achieving efficient heat exchange between low-pressure steam and liquid. The low-pressure steam main pipe 2 is fixedly connected to the steam pipe tee 11, and at least a steam main pipe intermediate section self-regulating valve 5 and a steam pipe check valve 9 are connected to the low-pressure steam main pipe 2. Adding the steam pipe check valve 9 to the gas pressure steam main pipe entering the water tank prevents hot water in the hot water tank 100 from flowing back into the steam pipeline when steam heating stops. The demineralized water main pipe 19 is correspondingly connected to the top of the tank body 1, and at least a demineralized water main pipe self-regulating valve 15 is connected to the demineralized water main pipe 19. Demineralized water enters the hot water tank 100 through this pipe and exchanges heat with the low-pressure steam. The steam main pipe intermediate section self-regulating valve 5 and the demineralized water main pipe self-regulating valve 15 are interlocked. This interlocking control ensures that steam heating begins after the liquid level in the hot water tank 100 is reached, avoiding steam waste and safety accidents.

[0029] This invention features upper and lower corresponding nozzles within the hot water tank 100. Powered by steam, the nozzles cause the liquid to rotate within the tank 1, accelerating heat exchange, breaking down the boundary layer, and preventing large temperature differences caused by inadequate localized heating. This achieves fluid control and enhancement; improves the heat transfer process, increases the heat exchange area, and optimizes fluid flow, allowing for faster and more complete heat exchange between media. This results in a more uniform water temperature distribution within the tank 1, preventing localized overheating or undercooling and ensuring that the fluid throughout the tank 1 exchanges heat under relatively consistent temperature conditions. This improves the stability and reliability of heat exchange, significantly shortens heating time, and enhances overall heat exchange efficiency. Furthermore, it reduces energy consumption, achieving equivalent or better heat exchange effects with less energy, improving tank heating efficiency, and lowering operating costs.

[0030] like Figure 1 As shown, a low-pressure steam inlet main valve 3 is installed at the inlet end of the low-pressure steam main pipeline 2. A front-end manual valve 4 and a rear-end manual valve 8 of the steam main pipeline are respectively installed before and after the self-regulating valve 5 in the middle section of the low-pressure steam main pipeline 2. A steam bypass pipeline 6 is connected to the low-pressure steam main pipeline 2 at the front end of the front-end manual valve 4 and the rear end of the steam main pipeline manual valve 8. A steam bypass pipeline manual valve 7 is connected to the steam bypass pipeline 6. A hot water tank vent pipe 20 is installed at the top of the tank body 1, through which the low-pressure steam can be vented after heat exchange.

[0031] like Figure 1 As shown, the main demineralized water pipeline 19 is equipped with a front manual valve 14 and a rear manual valve 16 at the front and rear ends of the main demineralized water pipeline self-regulating valve 15, respectively. A demineralized water branch pipeline 17 is connected to the main demineralized water pipeline 19 at the front end of the front manual valve 14 and the rear manual valve 16, and a demineralized water branch pipeline manual valve 18 is connected to the demineralized water branch pipeline 17. A superheated demineralized water outlet pipeline 24 is provided at the bottom of the tank 1. The demineralized water is heated in the hot water tank 100 and then discharged through the superheated demineralized water outlet pipeline 24.

[0032] like Figure 1 As shown, a hot water tank manhole 21 is provided at the top of the tank body 1. A liquid level sensor 22 and a temperature sensor 23 are respectively provided on the tank body 1, and the liquid level sensor 22 and the temperature sensor 23 are electrically connected to the control mechanism. The control mechanism can be integrated using existing technology to realize its control function. The liquid level sensor 22 is used to monitor the liquid level data in the tank body 1, and the temperature sensor 23 is used to monitor the liquid temperature data in the tank body 1. The liquid level sensor 22 can control the opening or closing of the self-regulating valve 15 of the demineralized water main pipe through the control mechanism to realize automatic water intake. The temperature sensor 23 can control the opening or closing of the self-regulating valve 5 in the middle section of the steam main pipe through the control mechanism to realize heating or stopping heating of the demineralized water.

[0033] The working principle or method of this utility model:

[0034] The manual valves 14 and 16 connected to the main demineralized water pipeline 19 are kept fully open. The flow rate of demineralized water in the pipeline is adjusted by the self-regulating valve 15 of the main demineralized water pipeline. The automatic water replenishment function of the self-regulating valve 15 of the main demineralized water pipeline is controlled by the level sensor 22. The manual valve 18 connected to the secondary demineralized water pipeline 17 is normally closed. If the self-regulating valve 15 of the main demineralized water pipeline 15 malfunctions, the manual valve 18 of the secondary demineralized water pipeline can be opened to manually replenish water and temporarily maintain production stability.

[0035] After the water level in the hot water tank 100 slowly rises to the preset height, fully open the low-pressure steam inlet main valve 3, the front manual valve 4 of the steam main pipe, and the rear manual valve 8 of the steam main pipe connected to the low-pressure steam main pipe 2. Use the self-regulating valve 5 in the middle section of the steam main pipe to regulate the steam flow in the pipe. The automatic adjustment function of the self-regulating valve 5 in the middle section of the steam main pipe is controlled by the temperature sensor 23 of the hot water tank 100. The manual valve 7 of the steam auxiliary pipe connected to the steam auxiliary pipe 6 is normally kept closed. If the self-regulating valve 5 in the middle section of the steam main pipe on the low-pressure steam main pipe 2 malfunctions, the manual valve 7 of the steam auxiliary pipe can be opened to adjust the steam inlet flow so that the liquid temperature in the hot water tank 100 reaches the required level.

[0036] Low-pressure steam is split into two streams through the low-pressure steam main pipe 2 and the steam pipe tee 11, and then ejected from the upper steam outlet nozzle 12 and the lower steam outlet nozzle 13. The steam, under the action of the upper steam outlet nozzle 12 and the lower steam outlet nozzle 13, keeps the liquid in the tank 1 in a state of agitation and flow, avoiding uneven heating of the liquid due to local inadequate heating. After the steam from the upper steam outlet nozzle 12 heats the liquid in the hot water tank 100, the lower steam outlet nozzle 13 reheats the preheated liquid in the upper part, so as to make full use of the steam heat and achieve energy saving and consumption reduction.

[0037] The temperature and level of the demineralized water in the hot water tank 100 can be monitored online by temperature sensor 23 and level sensor 22. The steam and water intake of the hot water tank 100 can be controlled by the control mechanism. The residual steam heat is discharged through the hot water tank vent pipe 20 at the top of the hot water tank 100. The superheated demineralized water (hot water) is discharged through the superheated demineralized water outlet pipe 24 for normal production use.

[0038] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hot water tank having high heat exchange efficiency, characterized by comprising: The hot water tank (100) comprises: a tank body (1), a nozzle support (10) is arranged in the lower part of the tank body (1), and a steam pipe tee (11) is fixedly arranged on the nozzle support (10), the upper and lower ends of the steam pipe tee (11) are fixedly connected with a steam outlet upper nozzle (12) and a steam outlet lower nozzle (13) respectively; a low-pressure steam main pipe (2), which is fixedly connected with the steam pipe tee (11), and at least a steam main pipe middle section self-regulating valve (5) and a steam pipe check valve (9) are connected on the low-pressure steam main pipe (2); a desalted water main pipe (19), which is correspondingly connected at the top end of the tank body (1), and at least a desalted water main pipe self-regulating valve (15) is connected on the desalted water main pipe (19); wherein the steam main pipe middle section self-regulating valve (5) and the desalted water main pipe self-regulating valve (15) are interlocked controlled.

2. The hot water tank with high heat exchange efficiency according to claim 1, wherein, An inlet end of the low-pressure steam main pipe (2) is provided with a low-pressure steam inlet total valve (3); the low-pressure steam main pipe (2) is provided with a steam main pipe front section manual valve (4) and a steam main pipe rear section manual valve (8) at the front and rear ends of the steam main pipe middle section self-regulating valve (5) respectively.

3. The hot water tank with high heat exchange efficiency according to claim 2, characterized in that, The low-pressure steam main pipe (2) is connected with a steam auxiliary line pipe (6) at the front end of the steam main pipe front section manual valve (4) and the rear end of the steam main pipe rear section manual valve (8), and the steam auxiliary line pipe (6) is connected with a steam auxiliary line pipe manual valve (7).

4. The hot water tank with high heat exchange efficiency according to claim 3, wherein A top end of the tank body (1) is provided with a hot water tank vent pipe (20).

5. The hot water tank with high heat exchange efficiency according to claim 1, wherein The desalted water main pipe (19) is provided with a desalted water main pipe front section manual valve (14) and a desalted water main pipe rear section manual valve (16) at the front and rear ends of the desalted water main pipe self-regulating valve (15) respectively.

6. The hot water tank with high heat exchange efficiency according to claim 5, wherein The desalted water main pipe (19) is connected with a desalted water auxiliary line pipe (17) at the front end of the desalted water main pipe front section manual valve (14) and the rear end of the desalted water main pipe rear section manual valve (16), and the desalted water auxiliary line pipe (17) is connected with a desalted water auxiliary line pipe manual valve (18).

7. The hot water tank with high heat exchange efficiency according to claim 6, wherein A bottom end of the tank body (1) is provided with a superheated desalted water outlet pipe (24).

8. The hot water tank with high heat exchange efficiency according to claim 1, wherein A top end of the tank body (1) is provided with a hot water tank upper manhole (21).

9. The hot water tank with high heat exchange efficiency according to any one of claims 1 to 8, characterized in that, The tank body (1) is provided with a liquid level sensor (22) and a temperature sensor (23) respectively, and the liquid level sensor (22) and the temperature sensor (23) are electrically connected with a control mechanism.

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