Heat storage boiler

Abstract

The present application relates to the technical field of boiler production and manufacturing. Disclosed is a heat storage boiler. The heat storage boiler comprises a heat storage mechanism, a water production mechanism and a steam generation mechanism, wherein the heat storage mechanism comprises a heat storage body, a fan and an air duct, the fan and the air duct being respectively arranged on two sides of the heat storage body, and the fan being configured to blow heat, which is stored in the heat storage body, into the air duct in the form of hot air; the water production mechanism comprises a heat exchanger and a water delivery pipe, the water delivery pipe being connected to the heat exchanger, and the air duct being connected to the heat exchanger; the steam generation mechanism comprises a preheater, a superheater and a steam drum; and part of the hot water produced by means of the heat exchanger can pass through the preheater, the steam drum and the superheater to generate superheated steam. The heat storage boiler can produce both hot water and steam, the water is heated by means of the heat exchanger before entering the preheater for heating, and the water is subjected to preheating twice prior to steam generation, such that the parameters of the superheated steam can be effectively improved. Compared with most current boilers, the heat storage boiler requires less heat to produce superheated steam having the same parameters.

Description

Heat accumulating boiler

[0001] The present application claims priority to the Chinese patent application No. 202410855527.6, filed on June 28, 2024, and entitled "Heat accumulating boiler", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of boiler production and manufacturing, in particular to a heat accumulating boiler. BACKGROUND

[0003] At present, the heat accumulating boiler for producing hot water or steam is a single unit, which cannot simultaneously meet the demand for steam and hot water. Even if it can supply steam and hot water at the same time, it is completed by multiple units, which causes the heat accumulating boiler to have a large overall floor area and high operating cost. Moreover, most boilers currently require a large amount of heat to produce superheated steam with the same parameters. Therefore, how to design a boiler that can simultaneously produce hot water and steam and requires less heat to produce superheated steam with the same parameters is a problem that needs to be solved by those skilled in the art. SUMMARY

[0004] The purpose of the present application is to provide a heat accumulating boiler that solves the technical problem that current boilers cannot simultaneously meet the demand for steam and hot water and require a large amount of heat to produce superheated steam with the same parameters.

[0005] To achieve the above-mentioned purpose, the present application provides a heat accumulating boiler, comprising:

[0006] A heat accumulating mechanism, comprising a heat accumulating body, a fan and an air duct, the fan is arranged on one side of the heat accumulating body, the air duct is arranged on the other side of the heat accumulating body, and the fan is used to blow the heat stored in the heat accumulating body into the air duct in the form of hot air;

[0007] A water producing mechanism, comprising a heat exchanger and a water delivery pipe, the water delivery pipe is connected with the heat exchanger, and the air duct is connected with the heat exchanger;

[0008] A steam producing mechanism, comprising a preheater, a superheater and a steam drum, the preheater, the superheater and the air duct are connected, and part of the hot water produced by the heat exchanger can produce superheated steam through the preheater, the steam drum and the superheater.

[0009] Preferably, the air duct comprises a first air duct and a second air duct, the air inlet end of the first air duct and the air inlet end of the second air duct are connected with the heat accumulating body, and the air outlet end of the first air duct and the air outlet end of the second air duct are connected with the fan.

[0010] Preferably, an adjusting mechanism is further included for adjusting the air volume blown into the first air duct and the second air duct, the adjusting mechanism comprising a mesh plate, a sliding channel and an insulating baffle, the mesh plate being arranged on the heat accumulator, the sliding channel being fixedly arranged on the mesh plate, and the insulating baffle being in sliding connection with the sliding channel and being slidable on the sliding channel in a first direction.

[0011] Preferably, an electric three-way valve is arranged on the water delivery pipe, and branch pipes one and two are connected to the water delivery pipe through the electric three-way valve, and the branch pipe two is connected to the preheater.

[0012] Preferably, the water production mechanism further comprises a water pump and a water storage tank, the water pump being connected to the water delivery pipe, and the branch pipe one being connected to the water storage tank.

[0013] Preferably, a control device is further included, which is specifically a controller, the controller being electrically connected to the water pump and the electric three-way valve.

[0014] Preferably, a liquid level sensor and / or a temperature sensor are installed in the water storage tank, the controller being electrically connected to the liquid level sensor and the temperature sensor.

[0015] Preferably, the adjusting mechanism further comprises a driving device for driving the insulating baffle to move linearly in the first direction, and the controller is electrically connected to the driving device.

[0016] Preferably, a gate valve is installed on the branch pipe two.

[0017] Preferably, the heat accumulator is a honeycomb ceramic heat accumulator, and the heat accumulating mechanism further comprises a heating wire arranged in the internal mesh of the heat accumulator.

[0018] With respect to the above background technology, the heat accumulating boiler provided by the present application comprises a heat accumulating mechanism, a water production mechanism and a steam production mechanism, the heat accumulating mechanism comprising a heat accumulator, a fan and an air duct, the fan being used for blowing the heat stored in the heat accumulator into the air duct in the form of hot air; the water production mechanism comprising a heat exchanger and a water delivery pipe, the water delivery pipe being connected to the heat exchanger, and the air duct being connected to the heat exchanger; and the steam production mechanism comprising a preheater, a superheater and a steam drum, part of the hot water produced by the heat exchanger being able to produce superheated steam through the preheater, the steam drum and the superheater. The above heat accumulating boiler can simultaneously produce hot water and steam, the water has been heated by the heat exchanger before entering the preheater for heating, and the water is preheated twice before generating steam, which can effectively improve the superheated steam parameters, and compared with most boilers at present, less heat is needed to produce superheated steam of the same parameters. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical solution of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be part of the embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0020] Fig. 1 is a structural schematic diagram of a heat accumulating boiler provided by the embodiments of the present application.

[0021] In Fig. 1, the reference numerals are as follows: 10, heat accumulating mechanism; 11, heating wire; 12, heat accumulating body; 13, fan; 14, air duct; 141, first air duct; 142, second air duct; 20, water producing mechanism; 21, heat exchanger; 22, water delivery pipe; 221, electric three-way valve; 222, branch pipe one; 223, branch pipe two; 2231, gate valve; 23, water pump; 24, water storage tank; 30, steam producing mechanism; 31, preheater; 32, superheater; 33, steam drum; 34, connecting pipe; 40, adjusting mechanism; 41, net-shaped plate; 42, slide way; 43, heat insulation baffle; 50, control device. DETAILED DESCRIPTION

[0022] The technical solution in the embodiments of the present application will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the protection scope of the present application.

[0023] In order to make the technical solution of the embodiments of the present application, the accompanying drawings and specific embodiments will be further described in the following.

[0024] The present application provides a heat accumulating boiler, which can produce hot water and steam at the same time, and compared with most boilers at present, the heat needed for producing the same parameter of superheated steam is less.

[0025] Please refer to Fig. 1, the above-mentioned heat accumulating boiler includes heat accumulating mechanism 10, water producing mechanism 20, steam producing mechanism 30, adjusting mechanism 40 and control device 50.

[0026] Please refer to Figure 1, the heat storage mechanism 10 includes heating wire 11, heat storage body 12, fan 13 and air duct 14, heating wire 11 is arranged in heat storage body 12, in this embodiment, heat storage body 12 adopts honeycomb ceramic heat storage body 12, not only environmental protection but also higher heat resistance temperature, heating wire 11 is arranged in the internal mesh of ceramic heat storage body 12 specifically; Fan 13 is arranged at one side of heat storage body 12, air duct 14 is arranged at the other side of heat storage body 12, and fan 13 is used to blow the heat stored in heat storage body 12 into air duct 14 in the form of hot air.

[0027] Please refer to Figure 1, air duct 14 includes first air duct 141 and second air duct 142, the air inlet end of first air duct 141 and the air inlet end of second air duct 142 are connected with heat storage body 12, and the air outlet end of first air duct 141 and the air outlet end of second air duct 142 are connected with fan 13.

[0028] Please refer to Figure 1, water production mechanism 20 includes heat exchanger 21, water delivery pipe 22, water pump 23 and water storage tank 24, water pump 23 is connected with water delivery pipe 22, water delivery pipe 22 is connected with the water inlet and water outlet of heat exchanger 21, first air duct 141 is communicated with the heat exchange pipeline of heat exchanger 21, and water delivery pipe 22 is communicated with water storage tank 24.

[0029] Start water pump 23 to pass into cold water in water delivery pipe 22, cold water enters heat exchanger 21, hot air in first air duct 141 enters the heat exchange pipeline of heat exchanger 21, and the hot air in the heat exchange pipeline contacts the water in heat exchanger 21 to exchange heat, so that the cold water is heated, the temperature of the cold water is increased, and the heated water can be transported into water storage tank 24 through water delivery pipe 22.

[0030] Please refer to Figure 1, water delivery pipe 22 is further provided with electric three-way valve 221, water delivery pipe 22 is connected with branch pipe one 222 and branch pipe two 223 through electric three-way valve 221, and branch pipe one 222 is connected with water storage tank 24.In this embodiment, electric three-way valve 221 is an adjusting valve, which can adjust the water amount delivered to branch pipe one 222 and branch pipe two 223 by adjusting the opening degree.

[0031] Please refer to Figure 1, steam production mechanism 30 includes preheater 31, superheater 32, steam drum 33 and connecting pipe 34, the heat exchange pipeline of preheater 31 is communicated with second air duct 142, the heat exchange pipeline of superheater 32 is communicated with second air duct 142, branch pipe two 223 is connected with the water inlet of preheater 31, steam drum 33 is arranged on connecting pipe 34, and the two ends of connecting pipe 34 are connected with the water outlet of preheater 31 and the inlet of superheater 32 respectively.

[0032] Please refer to Fig. 1, the adjusting mechanism 40 is used for adjusting the air volume blown into the first air duct 141 and the second air duct 142 by the fan 13, the adjusting mechanism 40 comprises a mesh plate 41, a slide 42 and a heat insulation baffle 43, the mesh plate 41 is arranged on the side of the heat storage body 12 away from the fan 13, the slide 42 is fixedly arranged on the mesh plate 41, and the slide 42 is arranged in a first direction, wherein the first direction is the horizontal direction in Fig. 1, and the heat insulation baffle 43 is in sliding connection with the slide 42, and the heat insulation baffle 43 can slide on the slide 42 in the first direction.

[0033] Through the arrangement, the position of the heat insulation baffle 43 in the horizontal direction can be adjusted, and when the fan 13 blows the heat stored in the heat storage body 12 to the first air duct 141 and the second air duct 142 in the form of hot air, the air volume blown by the fan 13 to the first air duct 141 and the second air duct 142 can be adjusted along with the change of the position of the heat insulation baffle 43 on the heat storage body 12.

[0034] In the embodiment, the control device 50 is specifically a controller, the controller is electrically connected with the water pump 23, and the controller controls the start and stop of the water pump 23, so as to control the water pump 23 to introduce cold water into the water delivery pipe 22. The controller is electrically connected with the electric three-way valve 221.

[0035] In some embodiments, a liquid level sensor and / or a temperature sensor (not shown in the figure) are arranged in the water storage tank 24, the controller is electrically connected with the liquid level sensor, and the controller is electrically connected with the temperature sensor. The liquid level sensor can detect the water level in the water storage tank 24, so as to detect the water amount in the water storage tank 24, and the temperature sensor can detect the temperature of the water in the water storage tank 24.

[0036] In some embodiments, the adjusting mechanism 40 further comprises a driving device (not shown in the figure), the driving device drives the heat insulation baffle 43 to move linearly on the slide 42 in the horizontal direction, in the embodiment, the driving device can adopt an electric telescopic rod or a linear motor outputting linear motion, the controller is electrically connected with the driving device, and the controller can drive the heat insulation baffle 43 to move in the horizontal direction by controlling the driving device, so as to adjust the air volume blown by the fan 13 to the first air duct 141 and the second air duct 142. In other embodiments, the driving device can also adopt other structures, and the specific structure is not limited.

[0037] In some embodiments, a gate valve 2231 is arranged on the branch pipe two 223, and the gate valve 2231 mainly plays a role of cut-off. The gate valve 2231 can adopt an electric valve, and the controller can be electrically connected with the gate valve 2231, so as to control the working of the gate valve 2231 by the controller.

[0038] In some embodiments, heat preservation materials are arranged outside the heat storage boiler, and the heat preservation materials cover the whole boiler, and through the arrangement, heat loss can be reduced.

[0039] The specific working process of the heat storage boiler provided by the application is as follows: at night, the enterprise uses valley electricity to heat the heat storage body 12 through the heating wire 11, and the heat is stored in the heat storage body 12; during the day, the fan 13 is started, the fan 13 works to blow the heat stored in the heat storage body 12 to the air duct 14 in the form of hot air, the hot air enters the first air duct 141 and the second air duct 142 through the mesh plate 41 respectively; the water pump 23 is started to pass cold water into the water delivery pipe 22, the cold water enters the heat exchanger 21, the hot air in the first air duct 141 enters the heat exchange pipeline of the heat exchanger 21, the hot air in the heat exchange pipeline contacts the water in the heat exchanger 21 to exchange heat, thereby heating the cold water to increase the temperature of the cold water, part of the heated water is delivered into the water storage tank 24 through the water delivery pipe 22 and the branch pipe one 222 for storage, and then the water storage tank 24 supplies hot water to users; the water storage tank 24 always stores hot water, which is convenient for use;

[0040] Another part of the heated water is delivered into the preheater 31 through the branch pipe two 223, the hot air in the second air duct 142 enters the heat exchange pipeline of the preheater 31 and the heat exchange pipeline of the superheater 32 respectively, the water in the preheater 31 exchanges heat with the hot air in the heat exchange pipeline of the preheater 31 to heat the water again, and then the preheater 31 delivers the heated water into the steam drum 33 for gas-liquid separation, the separated steam is delivered into the superheater 32 for further heating, the steam exchanges heat with the hot air in the heat exchange pipeline of the superheater 32 to generate superheated steam, and then the superheated steam can be delivered to users for use.

[0041] During the peak period of water use, the controller controls the liquid level sensor and the temperature sensor to detect the water level and the temperature in the water storage tank 24, and then automatically controls the water pump 23 and the electric three-way valve 221 to increase the amount of cold water passing into the water delivery pipe 22 and the amount of hot water entering the water storage tank 24, thereby meeting the needs of users. The controller can control the driving device to adjust the position of the heat insulation baffle 43, so that the heat insulation baffle 43 slides to the right along the horizontal direction, thereby increasing the amount of hot air blown into the first air duct 141, and adjusting the temperature of the hot water delivered into the water storage tank 24.

[0042] When it is necessary to increase the steam output, the controller automatically controls the water pump 23 and the electric three-way valve 221 to increase the amount of cold water passing into the water delivery pipe 22 and the amount of water entering the branch pipe two 223, so as to generate sufficient steam to meet the needs of users. The controller controls the driving device to adjust the position of the heat insulation baffle 43, so that the heat insulation baffle 43 slides to the left along the horizontal direction, thereby increasing the amount of hot air blown into the second air duct 142. It can be understood that the position of the heat insulation baffle 43 should be adjusted to meet the needs of steam production first when adjusting.

[0043] The heat accumulating boiler comprises a water production mechanism 20 and a steam production mechanism 30, can simultaneously produce hot water and steam, the water is heated by a heat exchanger 21 before entering a preheater 31 for heating, the water is preheated twice before producing steam, can effectively improve the superheated steam parameter, compared with most boilers at present, the heat required for producing the same parameter superheated steam is less.

[0044] It should be noted that the relative terms, such as first and second, in the description are used only to differentiate one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0045] The principles and implementation manners of the present application are described by applying specific examples, and the above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A thermal storage boiler, characterized in that, include: A heat storage mechanism includes a heat storage body, a fan, and an air duct. The fan is located on one side of the heat storage body, and the air duct is located on the other side of the heat storage body. The fan is used to blow the heat stored in the heat storage body into the air duct in the form of hot air. A water production mechanism includes a heat exchanger and a water supply pipe, wherein the water supply pipe is connected to the heat exchanger and the air duct is connected to the heat exchanger; The steam generation mechanism includes a preheater, a superheater, and a steam drum. The preheater and the superheater are connected to the air duct. A portion of the hot water produced by the heat exchanger can be used to produce superheated steam through the preheater, the steam drum, and the superheater.

2. The thermal storage boiler according to claim 1, characterized in that, The air duct includes a first air duct and a second air duct. The air inlet end of the first air duct and the air inlet end of the second air duct are connected to the heat storage body, and the air outlet end of the first air duct and the air outlet end of the second air duct are connected to the fan.

3. The thermal storage boiler according to claim 2, characterized in that, It also includes an adjustment mechanism for adjusting the air volume blown into the first air duct and the second air duct. The adjustment mechanism includes a mesh plate, a slide rail and an insulating baffle. The mesh plate is disposed on the heat storage body, the slide rail is fixedly disposed on the mesh plate, and the insulating baffle is slidably connected to the slide rail. The insulating baffle can slide on the slide rail along a first direction.

4. The thermal storage boiler according to claim 3, characterized in that, An electric three-way valve is installed on the water supply pipe, and the water supply pipe is connected to branch pipe one and branch pipe two through the electric three-way valve. Branch pipe two is connected to the preheater.

5. The thermal storage boiler according to claim 4, characterized in that, The water production mechanism also includes a water pump and a water storage tank. The water pump is connected to the water delivery pipe, and the branch pipe is connected to the water storage tank.

6. The thermal storage boiler according to claim 5, characterized in that, It also includes a control device, specifically a controller, which is electrically connected to the water pump and the electric three-way valve.

7. The thermal storage boiler according to claim 6, characterized in that, The water storage tank is equipped with a liquid level sensor and / or a temperature sensor. The controller is electrically connected to the liquid level sensor and the temperature sensor.

8. The thermal storage boiler according to claim 6, characterized in that, The adjustment mechanism further includes a drive device, which is used to drive the heat insulation baffle to move linearly along a first direction, and the controller is electrically connected to the drive device.

9. The thermal storage boiler according to claim 4, characterized in that, A gate valve is installed on the second branch pipe.

10. The thermal storage boiler according to any one of claims 1-9, characterized in that, The heat storage body is a honeycomb ceramic heat storage body, and the heat storage mechanism also includes a heating wire, which is disposed in the internal mesh of the heat storage body.

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