Energy-saving independent layered heating water supply equipment

Abstract

The invention relates to the field of hot water supply, and in particular to an energy-saving independent layered heating water supply device, comprising a heating container body, a cold water inlet pipe, a hot water outlet pipe, an upper heating pipe, a lower heating pipe and a heat preservation container, wherein the upper heating pipe and the lower heating pipe are arranged in the heating container body in layers, the hot water outlet pipe leads hot water from the lower part of the heating container body, the slow-flow water-adding container is arranged above the heating container body, the lower bottom surface of the slow-flow water-adding container is evenly distributed with a plurality of water leakage holes, and the heat preservation container is arranged at the outlet end of the hot water outlet pipe; cold water is evenly sprinkled into the heating container body through the plurality of water leakage holes, the hot water of the lowest layer enters the heat preservation container through the hot water outlet pipe, the cold water is slowly and evenly sprinkled in, so as to avoid excessive water flow and rushing into the heating layer, and the device has the function of maintaining a stable constant temperature system, the heat preservation container enables the hot water supply of the device to be timely, and leaves enough heating time for the heating container body, and the device also has the function of constant temperature storage of hot water, so as to ensure sufficient hot water supply.

Description

Technical Field

[0001] The present invention relates to the field of hot water supply, and in particular to an energy-saving independent layered heating water supply device Background Art

[0002] The existing electric heating barrels used to boil water or cook food in restaurants use resistance wires for rapid heating and have high power. Each time the water is heated, it needs to be heated at the same time before it can be used, and it can only be heated to a hot water temperature point, and the temperature cannot be controlled within a certain range. After use, it is necessary to wait for water to be added again for heating. If industrial hot water is used, such repeated waiting takes time, which reduces processing efficiency. Another defect is that if the demand for hot water is far less than the amount of hot water delivered by the heating barrel, it will also cause waste of hot water energy.

[0003] In view of the above situation, the patent number CN 201310717545.X has a water storage type independent stratified heating hot water device (announcement number CN 103697595 B, announcement date 2016.06.22). The disclosed technical solution solves the above-mentioned technical problems. Water is introduced from the lower end of the container and discharged from the upper end. The stratified water supply and heating principle is: when the water temperature in the heating pipe is higher than the set lower limit of the hot water temperature, the heating controller directly starts the water pump to inject the colder water at the bottom of the stratified heating and heat-insulating water tank into the bottom of the heating pipe. The hot water in the heating pipe is concentratedly sent to the upper part of the stratified heating and heat-insulating water tank through the hot water pipe. At the same time, an equal amount of colder water is discharged downward through the cold water pipe by the concentrated hot water. When the corresponding temperature sensor measures that the water temperature at this place reaches the preset temperature, the heating controller controls the water pump to stop pumping water, and the stratified heating is completed. When the water temperature in the heating pipe is lower than the set lower limit of the hot water temperature, the heating controller first starts the heating pipe to heat the water in the heating pipe, and then starts the water pump to inject the colder water at the bottom of the stratified heating and heat-insulating water tank into the bottom of the heating pipe. The hot water in the heating pipe is concentrated and sent to the upper part of the stratified heating and heat-insulating water tank through the hot water pipe. At the same time, an equal amount of colder water is concentrated and discharged downward through the cold water pipe. When the corresponding temperature sensor measures that the water temperature at this location reaches the preset temperature, the heating controller controls the heating pipe to stop heating, and at the same time controls the water pump to stop pumping water, and the stratified heating is completed.

[0004] However, the above patent has the following defects: each time cold water is directly added to the heating pipe of the stratified heating, the excessive water flow will directly damage the stratified heating system, and the temperature of the upper hot water will drop rapidly, causing the stratified heating process to take longer. In addition, when releasing hot water and cold water at the same time, the cold water will be discharged with the hot water at the moment it comes in, so that the water temperature cannot reach the ideal value. Summary of the invention

[0005] In view of the technical problems existing in the prior art, the present invention provides an energy-saving independent stratified heating water supply equipment, which is equipped with a slow-flow water addition and hot water buffer device to disperse the cold water heating points, protect the stratified heating system, maintain a stable constant temperature system, and save heating energy.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] An energy-saving independent stratified heating water supply device comprises a heating container body, a cold water inlet pipe, a hot water outlet pipe, an upper heating pipe and a lower heating pipe. The upper heating pipe is placed in the heating container body and close to the upper edge, the lower heating pipe is placed in the heating container body and close to the lower bottom, the hot water outlet pipe leads hot water from the lower part of the heating container body, and the heating container body is also covered with a slow-flow water-adding container. The cold water inlet pipe fills cold water from the upper part of the slow-flow water-adding container. The lower bottom surface of the slow-flow water-adding container is evenly distributed with a plurality of water leakage holes, and the diameter of the water leakage holes is smaller than the diameter of the cold water inlet pipe.

[0008] The end of the hot water outlet pipe is connected to an insulation container, which is provided with a water outlet tap. The insulation container is divided into a constant temperature inner layer and an insulation outer layer. A circulation pipe, a water pump, a first temperature sensor and a solenoid valve module are connected between the insulation container and the heating container body. The first temperature sensor is placed in the insulation container, and the solenoid valve module is installed on the circulation pipe and electrically connected to the first temperature sensor; a hot water solenoid valve is provided on the hot water outlet pipe, and a liquid level sensor A is provided near the upper edge of the insulation container, and the liquid level sensor A is electrically connected to the hot water solenoid valve.

[0009] The energy-saving independent layered heating water supply equipment adopting this design has the following beneficial effects compared with the prior art: cold water is evenly sprinkled into the heating container through a number of leakage holes, falls on the water surface of the top layer, and is sprinkled slowly and evenly, avoiding excessive water flow and rushing into the heating layer, thereby avoiding the defect that the cold water flow destroys the heating layer and causes the heating efficiency to slow down, maintaining a stable constant temperature system, and saving heating energy.

[0010] The function of the thermal insulation container is to collect the water that has reached a predetermined high temperature (i.e. the hot water at the bottom layer) and maintain a constant temperature, freeing up space in the heating container body to continue heating another bucket of hot water in layers, to prevent the hot water released from reaching the required temperature after the cold water rushes in and damages the heating layer, and to release the hot water when it is needed after storage. The liquid level sensor, temperature sensor and solenoid valve module can be used together to ensure that there is hot water in the thermal insulation container at any time. The entire device not only protects the heating layer, but also recycles steam and saves water. It also has the function of keeping hot water at a constant temperature to ensure sufficient supply of hot water (hot water).

[0011] It is further defined that a steam recovery chamber is provided above the slow-flow water-adding container, a heat exchanger is provided in the steam recovery chamber, a water receiving trough is provided on the inner side wall of the lower bottom of the steam recovery chamber, and a plurality of steam through pipes connected to the heating container body and the steam recovery chamber are provided in the slow-flow water-adding container, and the positions of the steam through pipes and the water leakage holes are staggered. The first function is to recover the condensation of steam and save water; the second function is that in the process of steam rising and condensing, its heat will first increase the temperature of the cold water in the slow-flow water-adding container, and after falling into the heating container body, the upper heating pipe will heat the water more quickly, which can also save electricity, make full use of thermal energy, and save electric energy.

[0012] It is further defined that a recovery pipe is connected between the steam recovery chamber and the cold water inlet pipe, and a one-way valve is installed on the recovery pipe. Condensed water can be led to the cold water inlet pipe and discharged into the slow-flow water adding container again along with the cold water, thereby saving water.

[0013] It is further defined that the heating container body is also provided with a middle heating tube disposed between the upper heating tube and the lower heating tube.

[0014] It is further defined that the heating temperature of the upper heating tube is between 30°C and 35°C, the heating temperature of the middle heating tube is between 70°C and 75°C, and the heating temperature of the lower heating tube is between 85°C and 90°C.

[0015] It is further defined that, in order to avoid rapid heat dissipation, the heating container body is divided into an inner water storage barrel and an outer heat preservation barrel.

[0016] It is further defined that one end of the circulation pipe connected to the heating container body is placed above the upper heating pipe.

[0017] It is further defined that the device also includes a controller, and the upper heating tube, the middle heating tube and the lower heating tube divide the heating layer in the heating container into three layers, and second temperature sensors are respectively placed in the temperature zones of the three layers, the second temperature sensor is externally connected to a relay in the controller, the relay is externally connected to a power supply and the upper heating tube, the middle heating tube and the lower heating tube.

[0018] It is further defined that a liquid level sensor B is provided above the upper heating pipe in the heating container body, a solenoid valve switch is provided on the cold water inlet pipe, and the main power supply of the solenoid valve switch is connected to the controller. The operation of the device is controlled by the controller, and intelligent control of water inlet and water supply is realized, which increases the flexibility and intelligence of use and reduces the tediousness of the operator's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the full cross-section structure of an energy-saving independent layered heating water supply equipment;

[0020] Figure 2It is a schematic diagram of the top view of the structure of a slow-flow water-adding container of an energy-saving independent stratified heating water supply device;

[0021] Figure 3 The present invention is a working flow chart of an energy-saving independent stratified heating water supply equipment. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 The energy-saving independent layered heating water supply equipment shown in the figure includes a heating container body 1, a cold water inlet pipe 2, a hot water outlet pipe 3, an upper heating pipe 4, a middle heating pipe 5 and a lower heating pipe 6. The heating container body 1 is divided into an inner water storage barrel and an outer heat preservation barrel. The inner layer is heated and the outer layer is heat-insulated. The temperature is more concentrated and not easy to lose, and the heating effect is better. The upper heating pipe 4 is placed in the heating container body 1 and close to the upper edge, the lower heating pipe 6 is placed in the heating container body 1 and close to the lower bottom, the middle heating pipe 5 is placed in the middle of the heating container body 1, and the hot water outlet pipe 3 guides hot water from the lower part of the heating container body 1. The heating temperature of the upper heating tube 4 is between 30°C and 35°C, the heating temperature of the middle heating tube 5 is between 70°C and 75°C, and the heating temperature of the lower heating tube 6 is between 85°C and 90°C. The upper heating tube 4, the middle heating tube 5 and the lower heating tube 6 can be DN40 220V electric heating tubes, which are directly installed on the inner wall of the heating container body 1, and the front end of the copper head steel tube penetrates into the water in the heating container body 1 to directly release heat.

[0024] A slow-flow water-adding container 7 is also covered on the heating container body 1. The cold water inlet pipe 2 is filled with cold water from the upper part of the slow-flow water-adding container 7. A plurality of leakage holes 71 are evenly distributed on the lower bottom surface of the slow-flow water-adding container 7. The diameter of the leakage hole 71 is smaller than the diameter of the cold water inlet pipe 2. When the water flow on the cold water inlet pipe 2 is large and the aperture of the leakage hole 71 is small, the water flow is dispersed and flows downward from multiple leakage holes 71 and falls evenly into the heating container body 1.

[0025] A steam recovery chamber 8 is provided above the slow-flow water-adding container 7, and a heat energy exchanger (the same as that used in the existing water boiler) is provided in the steam recovery chamber 8. A circle of water receiving grooves 81 is provided on the inner side wall of the lower bottom of the steam recovery chamber 8. After the steam condenses into water droplets, it slides down along the arc-shaped inner wall of the steam recovery chamber 8 to be stored in the water receiving groove 81. The slow-flow water-adding container 7 is provided with a plurality of steam passages 9 connected to the heating container body 1 and the steam recovery chamber 8, and the positions of the steam passages 9 and the water leakage holes 71 are staggered. In addition, in order to make full use of condensed water, save water, and prevent steam from being emitted into the air and affecting the dry workshop processing environment, a recovery pipe 10 is connected between the water receiving groove 81 and the cold water inlet pipe 2, and a one-way valve 11 is installed on the recovery pipe 10. The recovery pipe 10 guides the water in the water receiving groove 81 into the cold water inlet pipe 2.

[0026] The heating temperature of this device is controlled by a controller. The end of the hot water outlet pipe is connected to an insulation container 15, and a water outlet tap is provided on the insulation container. The insulation container 15 is divided into a constant temperature inner layer and an insulation outer layer. A circulation pipe 16, a water pump 17, a first temperature sensor 18 and a solenoid valve module 19 are connected between the insulation container 15 and the heating container body 1. The first temperature sensor 18 is placed in the insulation container 15, and the solenoid valve module 19 is installed on the circulation pipe 16 and is electrically connected to the first temperature sensor 18; a hot water solenoid valve 20 is provided on the hot water outlet pipe 3, and an A liquid level sensor 21 is provided near the lower edge of the insulation container 15. The A liquid level sensor 21 is electrically connected to the hot water solenoid valve 20, and the hot water solenoid valve 20 is connected to the In the controller, when the first temperature sensor 18 detects that the water in the heat preservation container 15 exceeds the expected temperature, the water pump 17 is started to pump the water back to the uppermost layer in the heating container body 1, and reheat it according to the heating sequence of the heating layers. At the same time, once the A liquid level sensor 21 detects a drop in the water level, the hot water solenoid valve 20 is opened to introduce the hot water in the lower layer of the heating container body 1 into the heat preservation container 15. If the device is not used for a long time, the various heating pipes in the heating container body 1 must be opened to heat the cold water, and then the water pump 17 is powered on to avoid the lower layer of water being heated to the preset temperature before the hot water solenoid valve 20 is opened to release hot water, thereby avoiding product manufacturing losses caused by the water released from the faucet by the user not reaching the boiling point.

[0027] The upper heating tube 4, the middle heating tube 5 and the lower heating tube 6 divide the heating layer in the heating container body 1 into three layers. Second temperature sensors 12 are placed in the temperature zones of the three layers to detect the temperatures of different layers. The second temperature sensor 12 is externally connected to a relay in a controller. The relay is externally connected to a 220V power supply and the upper heating tube 4, the middle heating tube 5 and the lower heating tube 6. The temperature setting of the second temperature sensor 12 enables the relay to control the upper heating tube 4, the middle heating tube 5 and the lower heating tube 6. When the second temperature sensor 12 detects that the temperature is too low, the relay is turned on to start the upper heating tube 4, the middle heating tube 5 or the lower heating tube 6. When the temperature sensor 10 detects that the temperature exceeds the set temperature, the relay is disconnected to stop the upper heating tube 4, the middle heating tube 5 or the lower heating tube 6 from heating water in different temperature layers. The relays connected to the upper heating tube 4, the middle heating tube 5 and the lower heating tube 6 are parallel single-linked controls and are controlled separately.

[0028] Preferably, it is best that the second temperature sensor 12 can control the upper heating tube 4 to heat the upper layer of water to 35°C, the middle heating tube 5 to heat the middle layer of water to 70°C, and the lower heating tube 6 to heat the lower layer of water to 90°C, to ensure that the outlet water temperature does not exceed 90°C. Once the temperature is too high, the relay must be disconnected to stop the lower heater 6 from heating and reduce the temperature of the lower layer of water.

[0029] In addition, a B liquid level sensor 13 is provided in the heating container body 1 and is placed above the upper heating tube 4. A solenoid valve switch 14 is provided on the cold water inlet pipe 2. The total power supply of the solenoid valve switch 14 is connected to the controller. The controller has the same switch. When the B liquid level sensor 13 detects that the water is reduced, it gives a signal to the solenoid valve switch 14 to open the solenoid valve switch 14 and put in cold water to avoid dry burning of the upper heater 4. It also ensures that when the hot water is released from the lower layer, the cold water from the upper layer can be added in time to ensure the balance of the three heating layers.

[0030] The heating method and use process of the device are realized by the following steps:

[0031] Step 1: Add water

[0032] Cold water is discharged from the cold water inlet pipe 2 into the slow-flow water adding container 7, and leaks into the heating container body 1 along the water leakage hole.

[0033] Step 2: Layered heating

[0034] First, the cold water just put in is heated centrally. The temperature of the lower heating tube is higher. After it is heated to 90℃ hot water, the hot water outlet pipe 3 discharges the hot water in the lower layer, and the upper cold water is continuously added through the leaking hole. The water is heated in layers when passing through the upper heating tube 4, the middle heating tube 5 and the lower heating tube 6 in turn. If the hot water outlet pipe 3 does not release the hot water, then when the second temperature sensor 12 detects that the hot water in the lower layer exceeds 90℃, the connection of the relay is cut off to stop the function of the lower heating tube. On the contrary, after the temperature drops, the relay is turned on again, and the lower heating tube continues to release heat to ensure the 90℃ temperature of the hot water, ensuring that the water released from the hot water outlet pipe 3 is always maintained at around 90℃.

[0035] When hot water is needed, open the tap to release hot water. When the temperature reaches 90°C, release hot water directly. Once the A liquid level sensor detects that the water level has dropped, open the hot water solenoid valve to put the bottom layer of hot water in the heating container 1 into the heat preservation container 15. After the water in the heating container 1 is reduced, the B liquid level sensor 13 activates the solenoid valve switch 14 to add cold water, and intermittently add cold water in a cycle, forming a stratified heating of hot water. (Note: If it has not been used for a long time, turn on the power switch of the solenoid valve module 19 first. After the first temperature sensor 18 detects that the temperature is lower than 90°C, it starts the water pump 17 to pump water back to the heating container 1 for reheating)

[0036] Step 3: Steam recovery

[0037] The principle of intermittent layered heating of cold water is the same as the principle of heating water in a pot. Usually, the hot water in our pot can boil again in a few seconds after adding a small amount of cold water. Continuously add water and boil continuously. The design is the same. A small amount of cold water is added. When the cold water is gradually released, it can be heated by the high-power heating tube. When it falls to the bottom layer, the higher the temperature is, the more it can reach the boiling point. At the same time, the upper layer does not boil and can prevent the loss of steam, but there is still a small amount of water vapor running out, so a steam recovery chamber 8 is designed. The steam rises and condenses into water, and then is introduced into the cold water inlet pipe for use. If products are produced in some drying workshops that need this device, it can also isolate water vapor from escaping and maintain the dryness of the workshop air. For example, in a noodle production workshop, this device is needed to provide 90°C water to mix with flour, and the air supply humidity cannot be increased to avoid affecting the processing of noodles.

[0038] The above is a detailed introduction to an energy-saving independent stratified heating water supply device provided by the present invention, and the description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An energy-saving independent layered heating water supply device, comprising a heating container body, a cold water inlet pipe, a hot water outlet pipe, an upper heating pipe, and a lower heating pipe, wherein the upper heating pipe is placed in the heating container body and close to the lower edge, the lower heating pipe is placed in the heating container body and close to the lower bottom, and the hot water outlet pipe extracts hot water from the lower part of the heating container body, characterized in that: A slow-flow water-adding container is also covered above the heating container body, and the cold water inlet pipe is used to inject cold water from the upper part of the slow-flow water-adding container. A plurality of water leakage holes are evenly distributed on the lower bottom surface of the slow-flow water-adding container, and the diameter of the water leakage holes is smaller than the diameter of the cold water inlet pipe; The end of the hot water outlet pipe is connected to a heat preservation container, which is provided with a water outlet tap. The heat preservation container is divided into a constant temperature inner layer and a heat preservation outer layer. A circulation pipe, a water pump, a first temperature sensor and a solenoid valve module are connected between the heat preservation container and the heating container body. The first temperature sensor is placed in the heat preservation container, and the solenoid valve module is installed on the circulation pipe and is electrically connected to the first temperature sensor. The hot water outlet pipe is provided with a hot water electromagnetic valve, and a liquid level sensor A is provided near the lower edge of the heat preservation container, and the liquid level sensor A is electrically connected to the hot water electromagnetic valve; A steam recovery chamber is arranged above the slow-flow water-adding container, a heat energy exchanger is arranged in the steam recovery chamber, a circle of water receiving grooves is arranged on the inner side wall of the lower bottom of the steam recovery chamber, a plurality of steam passages connected to the heating container body and the steam recovery chamber are arranged in the slow-flow water-adding container, and the positions of the steam passages and the water leakage holes are staggered with each other; a recovery pipe is connected between the steam recovery chamber and the cold water inlet pipe, and a one-way valve is installed on the recovery pipe; The heating container body is also provided with a middle heating tube placed between the upper heating tube and the lower heating tube; the heating temperature of the upper heating tube is 30℃~35℃, the heating temperature of the middle heating tube is 70℃~75℃, the heating temperature of the lower heating tube is 85℃~90℃, and one end of the circulation tube connected to the heating container body is placed above the upper heating tube.

2. The energy-saving independent layered heating water supply equipment according to claim 1 is characterized in that: The heating container body is divided into an inner water storage barrel and an outer heat preservation barrel.

3. An energy-saving independent layered heating water supply device according to any one of claim 1, characterized in that: It also includes a controller. The upper heating tube, the middle heating tube and the lower heating tube divide the heating layer in the heating container into three layers. Second temperature sensors are placed in the temperature areas of the three layers respectively. The second temperature sensor is externally connected to a relay in the controller. The relay is externally connected to a power supply and the upper heating tube, the middle heating tube and the lower heating tube.

4. The energy-saving independent layered heating water supply equipment according to claim 3 is characterized in that: A liquid level sensor B is also arranged above the upper heating pipe in the heating container body, and a solenoid valve switch is arranged on the cold water inlet pipe. The total power supply of the solenoid valve switch is connected to the controller.

Images