Energy-saving and consumption-reducing device based on hot water tank
By controlling the flow direction of low-temperature water through a diversion device and electronic valves, and combining it with a water circulation system consisting of a hot water pump and a hot water delivery pump, the problem of low-temperature water from the reboiler being directly returned to the hot water tank is solved. This achieves efficient utilization of thermal energy and optimization of water resources, thereby reducing energy consumption.
Patent Information
- Application Number
- CN202520138794.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In the existing technology, the low-temperature hot water from the reboiler is directly returned to the hot water tank, occupying most of the tank's capacity. This leads to increased steam consumption and fails to fully utilize the low-temperature water generated by the reboiler, resulting in a waste of thermal energy.
A diversion device and electronic valves are used to control the flow of low-temperature water to the hot water tank or hot water intermediate tank. A water circulation system is established by combining hot water pumps and hot water transfer pumps. Temperature and liquid level data are monitored by a data processing device, and operating parameters are automatically adjusted to achieve efficient heat transfer and optimized utilization of water resources.
It improves the capacity utilization of the hot water tank, reduces heating energy consumption, maximizes heat recovery, lowers energy consumption, and ensures system operation stability and energy utilization efficiency.
Smart Images
Figure CN223861314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal energy utilization technology, and in particular to an energy-saving and consumption-reducing device based on a hot water tank. Background Technology
[0002] In industries such as chemical and pharmaceutical manufacturing, hot water tanks and reboiler systems are widely used for heating materials. The heat energy of the hot water or steam in the reboiler is used to exchange heat with the low-temperature materials to meet the production reaction conditions. After the heat exchange is completed, the steam condensate and hot water return water are recycled back to the hot water tank.
[0003] However, existing technologies still have the following shortcomings:
[0004] 1. When the low-temperature hot water from the reboiler is returned directly to the hot water tank, it occupies most of the tank's capacity, requiring more steam to heat the low-temperature water and increasing steam consumption.
[0005] 2. The low-temperature water produced by the reboiler was not fully utilized. Only a portion of the water was recycled, while most of the low-temperature water was discharged, wasting valuable thermal energy. Utility Model Content
[0006] This utility model addresses the shortcomings of existing technologies by providing an energy-saving and consumption-reducing device based on a hot water tank.
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: an energy-saving and consumption-reducing device based on a hot water tank, comprising: at least two reboilers, the reboilers being used to perform heat exchange operations on the materials; wherein, the reboilers absorb the heat energy of hot water and steam in the hot water tank to obtain low-temperature water and steam condensate; and utilize the absorbed heat energy to exchange heat on the materials so that the materials meet the reaction conditions.
[0008] The condensate pipeline has one end connected to two reboilers and the other end connected to the hot water tank; the steam condensate is introduced into the hot water tank through the condensate pipeline.
[0009] The diversion device is equipped with at least two water supply pipes, and each water supply pipe is connected to a reboiler. The diversion device is used to transport the low-temperature water in the reboiler to the hot water tank or hot water intermediate tank through the water supply pipes.
[0010] A hot water device includes a hot water tank and a heater; wherein the heater is located inside the hot water tank; the hot water device is used to heat the low-temperature water inside the hot water tank through the heater so that the low-temperature water inside the hot water tank reaches a specified temperature;
[0011] A water storage device, comprising a hot water intermediate tank; the hot water intermediate tank is used to store the low-temperature water inside.
[0012] Furthermore, the diversion device also includes:
[0013] At least three electronic valves, namely the first electronic valve, the second electronic valve, and the third electronic valve; the electronic valves are used to control the flow direction of low-temperature water between the hot water tank and the hot water intermediate tank.
[0014] Furthermore, the hot water device also includes:
[0015] Hot water pumps are used to transport heated, low-temperature water from hot water tanks to reboilers or hot water pipe racks.
[0016] The first temperature detection unit is installed inside the hot water tank; the first temperature detection unit is used to collect temperature data inside the hot water tank to obtain first temperature data.
[0017] The first liquid level sensor is installed inside the hot water tank; the liquid level sensor is used to collect the liquid level data inside the hot water tank to obtain the first liquid level data.
[0018] Furthermore, the water storage device also includes:
[0019] Hot water transfer pumps are used to transfer low-temperature water from intermediate hot water tanks to hot water tanks or hot water pipe racks.
[0020] The second temperature detection unit is installed inside the hot water intermediate tank; the second temperature detection unit is used to collect temperature data inside the hot water intermediate tank to obtain second temperature data.
[0021] The second liquid level sensor is installed inside the hot water intermediate tank; the second liquid level sensor is used to collect the liquid level data inside the hot water intermediate tank to obtain the second liquid level data.
[0022] Furthermore, energy-saving and consumption-reducing devices also include:
[0023] The data processing device is communicatively connected to the hot water pump, the first temperature detection unit, the first liquid level sensor, the hot water delivery pump, the second temperature detection unit, and the second liquid level sensor; the data processing device is used to receive the operating signal sent by the reboiler; and the control circuit board, which is located inside the data processing device, is used to receive data from each liquid level sensor and temperature detection unit, and send control commands to the heater, the hot water pump, and the hot water delivery pump according to preset conditions.
[0024] Furthermore, the data processing device also includes:
[0025] The temperature comparison module is used to compare the first temperature data collected by the first temperature detection unit with the preset temperature range threshold to obtain the temperature comparison result.
[0026] The liquid level comparison module is used to compare the first liquid level data collected by the first liquid level sensor with a preset liquid level range threshold to obtain the liquid level comparison result.
[0027] The water supply determination module is used to determine whether the hot water device meets the water supply standards based on temperature and liquid level comparison results. Furthermore, the data processing device also includes:
[0028] The adjustment scheme generation module is used to generate corresponding adjustment schemes based on temperature comparison results and liquid level comparison results when the hot water device does not meet the water supply standards.
[0029] Furthermore, the water storage device also includes:
[0030] The water supply interface is located on the hot water intermediate tank and is used to connect the distribution device to introduce low-temperature water into the hot water tank;
[0031] The drain interface, located on the outlet pipe, is used to connect the hot water delivery pump to discharge low-temperature water to the hot water pipe gallery.
[0032] Compared with the prior art, the beneficial effects of this utility model are:
[0033] This invention introduces a diversion device and its electronic valve to control the flow of low-temperature water to the hot water tank or intermediate hot water tank, preventing low-temperature water from directly entering the hot water tank, thus improving the capacity utilization of the hot water tank and reducing heating energy consumption. It also enables the recycling of low-temperature water in the reboiler, maximizing heat recovery and reducing energy consumption. The data processing device, combined with a temperature detection unit and a level sensor, monitors the temperature and level data of the hot water tank and intermediate hot water tank, and automatically adjusts operating parameters to ensure stable system operation while improving energy efficiency. A water circulation system is established between the hot water tank, intermediate hot water tank, and reboiler through a hot water pump and a hot water transfer pump, achieving efficient heat transfer and optimized water resource utilization, further reducing hot water discharge and water waste. Attached Figure Description
[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific 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.
[0035] Figure 1 This is an exemplary structural diagram of an energy-saving and consumption-reducing device based on a hot water tank, as described in an embodiment of this application.
[0036] Figure 2 This is an exemplary process flow diagram of an energy-saving and consumption-reducing device based on a hot water tank, as described in an embodiment of this application.
[0037] Figure 3 This is a partial exemplary process flow diagram of an energy-saving and consumption-reducing device based on a hot water tank, as described in this application.
[0038] Figure 4 This is a partial exemplary process flow diagram of an energy-saving and consumption-reducing device based on a hot water tank, as described in this application.
[0039] Icons: 100, Reboiler; 110, Condensate Pipeline; 200, Diverter; 300, Hot Water Unit; 310, Hot Water Pump; 400, Water Storage Unit; 410, Hot Water Transfer Pump; 500, Hot Water to Pipe Gallery; 600, Data Processing Unit. Detailed Implementation
[0040] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. 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 protection scope of this utility model.
[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. 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. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. 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.
[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0043] This utility model embodiment provides an energy-saving and consumption-reducing device based on a hot water tank, such as... Figures 1-4As shown, the system includes at least two reboilers 100, which are used for heat exchange operations on the materials. The reboilers 100 absorb heat energy from the hot water and steam in the hot water tank to obtain low-temperature water and steam condensate. The absorbed heat energy is then used to exchange heat with the materials to ensure they meet the reaction conditions. In practice, the reboiler 100 includes a main body, a communication module, a control panel, etc., allowing communication with the data processing unit 600 via the communication module. It should be noted that the operator can send operation signals via the control panel to the data processing unit 600. After the reboiler 100 completes the heat exchange operation, the steam condensate and low-temperature water are recovered back into the hot water tank.
[0044] Condensate line 110, with its other end connected to the hot water tank; steam condensate is introduced into the hot water tank through condensate line 110. It should be noted that condensate line 110 can be made of PVC material, which effectively controls costs.
[0045] A diversion device 200 is provided with at least two water supply pipes; each water supply pipe of the diversion device 200 is connected to a reboiler 100; the diversion device 200 is used to transport low-temperature water from the reboiler 100 to a hot water tank or a hot water intermediate tank via the water supply pipes. In practice, the number of water supply pipes on the diversion device 200 is the same as the number of reboilers 100, so that each reboiler 100 corresponds to one water supply pipe.
[0046] A hot water device 300 includes a hot water tank and a heater; wherein the heater is disposed inside the hot water tank; the hot water device 300 is used to heat the low-temperature water inside the hot water tank through the heater so that the low-temperature water inside the hot water tank reaches a specified temperature. In practice, the heater can be used to heat the hot water tank by introducing steam into the hot water tank.
[0047] The water storage device 400 includes a hot water intermediate tank for replenishing the hot water tank and for supplying low-temperature water to the circulating water unit via a connection to the hot water supply pipe gallery, thereby supplementing the water volume of the circulating water unit. The use of a hot water intermediate tank reduces the amount of steam consumed in heating the low-temperature water.
[0048] In some embodiments, by providing a water storage device 400, when the low-temperature water in the hot water tank reaches a designated level, the diversion device 200 distributes the excess low-temperature water to the hot water intermediate tank, so that the excess low-temperature water can be collected and stored. Compared with the prior art that directly returns the low-temperature water generated by the reboiler 100 to the hot water tank for circulating heating, the technical solution of this application has a more significant improvement.
[0049] Specifically, the diversion device 200 also includes:
[0050] At least three electronic valves are used, designated as a first electronic valve, a second electronic valve, and a third electronic valve; these electronic valves control the flow direction of low-temperature water between the hot water tank and the intermediate hot water tank. In practice,
[0051] The diversion device 200 controls the flow direction of the low-temperature water through the following steps:
[0052] When the first and second electronic valves are open and the third electronic valve is closed, the low-temperature water is directed to the hot water tank via the diversion device 200.
[0053] When the first electronic valve is closed and the second and third electronic valves are open, the low-temperature water is directed to the hot water intermediate tank via the diversion device 200.
[0054] By adjusting the on / off states of the first, second, and third electronic valves, the switching and transportation of low-temperature water between the hot water tank and the hot water intermediate tank can be achieved.
[0055] It should be noted that the diversion device 200 is equipped with at least three electronic valves: a first electronic valve, a second electronic valve, and a third electronic valve. In practice, these three electronic valves are used to control the flow direction of low-temperature water between the hot water tank and the intermediate hot water tank. By adjusting the on / off states of the three electronic valves, flexible switching of low-temperature water between the hot water tank and the intermediate hot water tank can be achieved.
[0056] Specifically, the hot water unit 300 also includes:
[0057] Hot water pump 310 is used to transport heated low-temperature water from hot water tank to reboiler 100 or hot water pipe rack 500.
[0058] The first temperature detection unit is installed inside the hot water tank; the first temperature detection unit is used to collect temperature data inside the hot water tank to obtain first temperature data.
[0059] The first liquid level sensor is installed inside the hot water tank; the liquid level sensor is used to collect the liquid level data inside the hot water tank to obtain the first liquid level data.
[0060] Specifically, the water storage device 400 also includes:
[0061] Hot water transfer pump 410 is used to transfer low-temperature water in the hot water intermediate tank to the hot water tank or hot water pipe rack 500.
[0062] The second temperature detection unit is installed inside the hot water intermediate tank; the second temperature detection unit is used to collect temperature data inside the hot water intermediate tank to obtain second temperature data.
[0063] The second liquid level sensor is installed inside the hot water intermediate tank; the second liquid level sensor is used to collect the liquid level data inside the hot water intermediate tank to obtain the second liquid level data.
[0064] Specifically, energy-saving and consumption-reducing devices also include:
[0065] The data processing device is communicatively connected to the hot water pump 310, the first temperature detection unit, the first liquid level sensor, the hot water delivery pump 410, the second temperature detection unit, and the second liquid level sensor. The data processing device receives operating signals sent by the reboiler 100. A control circuit board, located inside the data processing device, receives data from each liquid level sensor and temperature detection unit, and sends control commands to the heater, hot water pump 310, and hot water delivery pump 410 according to preset conditions. In practice, the data processing device can be various electronic devices (e.g., a computer). Depending on the needs, the data processing device may be equipped with control chips, communication modules, etc., so that various types of data can be acquired through the communication modules; these data can include temperature data and liquid level data.
[0066] Specifically, the data processing device also includes:
[0067] The temperature comparison module is used to compare the first temperature data collected by the first temperature detection unit with the preset temperature range threshold to obtain the temperature comparison result.
[0068] The liquid level comparison module is used to compare the first liquid level data collected by the first liquid level sensor with a preset liquid level range threshold to obtain the liquid level comparison result.
[0069] The water supply determination module is used to determine whether the hot water device 300 meets the water supply standards based on the temperature comparison results and the liquid level comparison results.
[0070] In practice, when the data processing device receives the operation signal, it acquires the first temperature data and the first liquid level data corresponding to the hot water device 300, and compares the first temperature data and the first liquid level data with the corresponding temperature range threshold and liquid level range threshold, respectively, to obtain the temperature comparison result and the liquid level comparison result.
[0071] Specifically, the data processing device also includes:
[0072] The adjustment scheme generation module is used to generate a corresponding adjustment scheme based on temperature and liquid level comparison results when the hot water device 300 does not meet the water supply standards. In practice, the adjustment scheme generation module generates the adjustment scheme through the following steps:
[0073] If the temperature comparison result shows that the first temperature data is less than the temperature range threshold, the processing device generates an adjustment signal representing the adjustment temperature and sends the adjustment signal to the heater; so that the heater adjusts its power according to the adjustment signal, so that the heater heats the low-temperature water inside the hot water tank to within the temperature range threshold.
[0074] If the liquid level comparison result is that the first liquid level data is lower than the liquid level range threshold, the data processing device generates a water replenishment signal to represent water replenishment and sends the water replenishment signal to the hot water delivery pump 410; so that the hot water delivery pump 410 introduces the low temperature water in the hot water intermediate tank into the hot water tank according to the water replenishment signal, so that the liquid level data inside the hot water tank rises to within the liquid level range threshold.
[0075] If the liquid level comparison result shows that the first liquid level data is higher than the liquid level range threshold, the data processing device generates a drainage signal that represents drainage and sends the drainage signal to the hot water pump 310; so that the hot water pump 310 introduces the hot water in the hot water tank into the hot water pipe gallery 500 according to the drainage signal, so that the liquid level data inside the hot water tank drops to within the liquid level range threshold.
[0076] Specifically, the water storage device 400 also includes:
[0077] A water supply interface is located on the hot water intermediate tank and is used to connect the diversion device 200 to introduce low-temperature water into the hot water tank;
[0078] A drain port, located on the outlet pipe, is used to connect the hot water delivery pump 410 to discharge low-temperature water to the hot water pipe rack 500.
[0079] In practice, the data processing module acquires the second liquid level data corresponding to the hot water intermediate tank and compares the second liquid level data with the standard liquid level range threshold to obtain the liquid level assessment result. If the liquid level assessment result is that the second liquid level data is less than the standard liquid level range threshold, the data processing device generates a water replenishment command and sends the water replenishment command to the diversion device 200. This allows the diversion device 200 to adjust the opening and closing state of the electronic valve according to the water replenishment command, and to transport low-temperature water from the reboiler 100 to the hot water intermediate tank through the water replenishment interface, so that the liquid level of the hot water intermediate tank rises back to within the standard liquid level range threshold.
[0080] If the liquid level assessment result is that the second liquid level data is greater than the standard liquid level range threshold, the data processing device generates a drainage command and sends the drainage command to the hot water transfer pump 410; so that the hot water transfer pump 410 transports the low temperature water in the hot water intermediate tank from the drainage interface to the hot water pipe gallery 500, so that the liquid level in the hot water intermediate tank drops to within the standard liquid level range threshold.
[0081] The system acquires the second temperature data corresponding to the hot water intermediate tank and compares it with the standard temperature range threshold to obtain a temperature assessment result. If the temperature assessment result indicates that the second temperature data is lower than the standard temperature range threshold, the data processing device generates an emptying signal and sends it to the hot water delivery pump 410 and the diversion device 200. This causes the hot water delivery pump 410 to empty all the low-temperature water in the hot water intermediate tank, and controls the diversion device 200 to change the flow direction of the water delivery pipe, replenishing the empty hot water intermediate tank with low-temperature water that meets the temperature requirements. Compared with the prior art, this operation ensures that the low-temperature water in the hot water intermediate tank is always kept within the standard temperature range threshold, meeting the requirements for replenishing water to the hot water tank.
[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An energy-saving and consumption-reducing device based on a hot water tank, characterized in that, include: At least two reboilers are provided for heat exchange operations on the material; wherein the reboilers absorb the heat energy of hot water and steam in the hot water tank to obtain low-temperature water and steam condensate; and use the absorbed heat energy to exchange heat with the material so that the material meets the reaction conditions. A condensate pipeline is provided, with one end connected to the two reboilers and the other end connected to the hot water tank; the steam condensate is introduced into the hot water tank through the condensate pipeline. The diversion device is equipped with at least two water supply pipes, and each water supply pipe is connected to a reboiler. The diversion device is used to transport low-temperature water in the reboiler to a hot water tank or a hot water intermediate tank through the water supply pipes. A hot water device includes a hot water tank and a heater; wherein the heater is disposed inside the hot water tank; the hot water device is used to heat the low-temperature water inside the hot water tank through the heater, so that the low-temperature water inside the hot water tank reaches a specified temperature; A water storage device, comprising a hot water intermediate tank; the hot water intermediate tank is used to replenish the hot water tank; and through connection with the hot water supply pipe gallery, low-temperature water is transported to the circulating water unit to replenish the water volume of the circulating water unit.
2. The energy-saving and consumption-reducing device based on a hot water tank according to claim 1, characterized in that, The diversion device further includes: At least three electronic valves, namely a first electronic valve, a second electronic valve, and a third electronic valve; the electronic valves are used to control the flow direction of low-temperature water between the hot water tank and the hot water intermediate tank.
3. The energy-saving and consumption-reducing device based on a hot water tank according to claim 1, characterized in that, The hot water device also includes: A hot water pump, used to deliver heated low-temperature water from a hot water tank to a reboiler or hot water drain line; A first temperature detection unit is installed inside the hot water tank; the first temperature detection unit is used to collect temperature data inside the hot water tank to obtain first temperature data. A first liquid level sensor is installed inside the hot water tank; the liquid level sensor is used to collect liquid level data inside the hot water tank to obtain first liquid level data.
4. The energy-saving and consumption-reducing device based on a hot water tank according to claim 1, characterized in that, The water storage device also includes: A hot water delivery pump, used to deliver low-temperature water from a hot water intermediate tank to a hot water tank or a hot water pipe gallery; The second temperature detection unit is installed inside the hot water intermediate tank; the second temperature detection unit is used to collect temperature data inside the hot water intermediate tank to obtain second temperature data. The second liquid level sensor is installed inside the hot water intermediate tank; the second liquid level sensor is used to collect the liquid level data inside the hot water intermediate tank to obtain the second liquid level data.
5. The energy-saving and consumption-reducing device based on a hot water tank according to claim 1, characterized in that, The energy-saving and consumption-reducing device also includes: The data processing device is communicatively connected to the hot water pump, the first temperature detection unit, the first liquid level sensor, the hot water delivery pump, the second temperature detection unit, and the second liquid level sensor; the data processing device is used to receive the operating signal sent by the reboiler; and the control circuit board, which is set inside the data processing device, is used to receive data from each liquid level sensor and temperature detection unit, and send control commands to the heater, the hot water pump, and the hot water delivery pump according to preset conditions.
6. The energy-saving and consumption-reducing device based on a hot water tank according to claim 5, characterized in that, The data processing device further includes: The temperature comparison module is used to compare the first temperature data collected by the first temperature detection unit with the preset temperature range threshold to obtain the temperature comparison result. The liquid level comparison module is used to compare the first liquid level data collected by the first liquid level sensor with a preset liquid level range threshold to obtain the liquid level comparison result; The water supply determination module is used to determine whether the hot water device meets the water supply standards based on the temperature comparison results and the liquid level comparison results.
7. The energy-saving and consumption-reducing device based on a hot water tank according to claim 5, characterized in that, The data processing device further includes: The adjustment scheme generation module is used to generate a corresponding adjustment scheme based on the temperature comparison results and the liquid level comparison results when the hot water device does not meet the water supply standards.
8. The energy-saving and consumption-reducing device based on a hot water tank according to claim 4, characterized in that, The water storage device also includes: The water supply interface is located on the hot water intermediate tank and is used to connect the distribution device to introduce low-temperature water into the hot water tank; The drain interface, located on the outlet pipe, is used to connect the hot water delivery pump to discharge low-temperature water to the hot water pipe gallery.