Micro-pressure phase-change electrode boiler

Abstract

The utility model relates to the field of boiler equipment, in particular to a micro-pressure phase-change electrode boiler which comprises a boiler body and a tubular heat exchanger, the interior of the boiler body is hollow, the boiler body is filled with liquid, the interior of the boiler body is in a non-flooded state, and the tubular heat exchanger is arranged in the boiler body. The liquid level of liquid in the boiler body divides the interior of the boiler body into a steam space and a water space, the steam space is located above the liquid space, the tubular heat exchanger is installed in the steam space, and the tubular heat exchanger is connected with an outer net to be heated. The boiler has the effects of reducing the occupied area of the boiler and improving the heat exchange efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boiler equipment, and in particular to a micro-pressure phase-change electrode boiler. BACKGROUND

[0002] Common boilers include atmospheric boilers and micro-pressure boilers. Atmospheric hot water boilers require the water supply temperature to reach 100 DEG C, and a high-level expansion water tank needs to be erected, which has high requirements on the height of the boiler room. Micro-pressure boilers refer to boiler equipment that provides high-temperature water in a micro-pressure state inside the boiler. Compared with atmospheric boilers, micro-pressure boilers are safer and more efficient.

[0003] Common micro-pressure boilers include a boiler body and a heat exchanger. The heat exchanger is installed on the boiler body, and the boiler body internally contains liquid. After heating, high-temperature steam enters the heat exchanger to exchange heat and achieve heat supply. For example, the patent document with the publication number CN215337106U discloses a condensing micro-pressure phase-change boiler, which mainly includes a boiler body and a heat exchanger installed on the boiler body and connected with the boiler body through an exhaust pipe. It also includes a water tank for water supply and storage. The heat exchanger exchanges heat with high-temperature steam to achieve heat supply.

[0004] However, in the related art, the heat exchanger, water tank, and boiler are independent of each other, which not only occupies a large amount of space but also increases the cost, and also leads to a large and redundant appearance. UTILITY MODEL CONTENT

[0005] In order to reduce the floor area of the micro-pressure boiler, the present application provides a micro-pressure phase-change electrode boiler.

[0006] The micro-pressure phase-change electrode boiler provided by the present application adopts the following technical solution:

[0007] A micro-pressure phase-change electrode boiler includes a boiler body and a tubular heat exchanger. The boiler body is hollow inside, and the boiler body is filled with liquid. The liquid inside the boiler body is in a non-full liquid state. The liquid surface of the liquid inside the boiler body divides the boiler body into a steam space and a water space. The steam space is located above the liquid space. The tubular heat exchanger is installed in the steam space, and the tubular heat exchanger is connected with an external network to be heated.

[0008] By adopting the above technical solution, the tubular heat exchanger is installed inside the boiler body, effectively utilizing the internal space of the boiler body and reducing the floor area of the micro-pressure phase-change boiler. Moreover, when the liquid inside the boiler body is heated, high-temperature steam can be generated in the steam space, and the high-temperature steam can directly exchange heat with the heat exchanger to achieve heat supply to the external network, improving the heat utilization efficiency.

[0009] Optionally, the boiler body is further provided with an electrode heating device, the electrode heating device is inserted into the liquid inside the boiler body, and the electrode heating device is connected with a power supply to generate heat.

[0010] By adopting the above technical scheme, the electrode heating device is powered during the use of the boiler, and the liquid inside the boiler body is heated.

[0011] Optionally, the electrode heating device is provided in multiple.

[0012] By adopting the above technical scheme, multiple electrode heating devices simultaneously heat the liquid inside the boiler body, which can improve the efficiency of liquid warming and the uniformity of the temperature of the liquid.

[0013] Optionally, the boiler body is provided with a partition plate, the partition plate is vertically arranged, the partition plate divides the water space into a reflux space and a heating space, the tubular heat exchanger is correspondingly arranged above the reflux space, and the electrode heating device is correspondingly arranged in the heating space.

[0014] By adopting the above technical scheme, during the use of the micro-pressure phase change boiler, steam is generated in the steam space, the steam is condensed on the surface of the tubular heat exchanger and flows back to the reflux space, and the temperature in the heating space can be kept stable.

[0015] Optionally, the partition plate is provided in two, the heating space is formed between the two partition plates, the reflux space is formed on the side away from each other of the two partition plates, and the tubular heat exchanger is correspondingly arranged in two reflux spaces.

[0016] By adopting the above technical scheme, the arrangement of multiple tubular heat exchangers improves the efficiency of heat supply to the outer net.

[0017] Optionally, the outer side wall of the boiler body is provided with a connecting pipe, the connecting pipe is correspondingly provided with two connecting pipes for the two reflux spaces, one end of the connecting pipe is in communication with the reflux space, the other end of the connecting pipe is in communication with the heating space, and the connecting pipe is provided with a liquid pump.

[0018] By adopting the above technical scheme, the liquid pump can pump the liquid in the reflux space into the heating space or pump the liquid in the heating space into the reflux space, so as to facilitate the control of the liquid level of the liquid in the heating space.

[0019] Optionally, the heating space and the reflux space are provided with a liquid level meter.

[0020] By adopting the above technical scheme, the liquid level meter is arranged to facilitate the collection of the liquid level information in the reflux space and the heating space.

[0021] Optionally, a plurality of supporting legs are arranged below the boiler body for supporting the boiler body.

[0022] By using the above technical scheme, the boiler body is supported by the supporting legs, so that the boiler body can be easily placed on a plane.

[0023] To sum up, the present application has the following beneficial technical effects: the tubular heat exchanger and the electrode heating device are integrated in the boiler body, the water space and the steam space in the boiler body are fully utilized, the land occupation is reduced, and the heat exchange efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0025] Reference signs: 1, boiler body; 11, water space; 111, heating space; 112, backflow space; 12, steam space; 2, tubular heat exchanger; 21, electrode heating device; 3, insulating member; 4, partition plate; 5, water inlet and outlet; 6, liquid level meter; 7, explosion-proof device; 8, supporting leg. DETAILED DESCRIPTION

[0026] The following will be described in detail with reference to the accompanying drawings. Figure 1 The present application will be further described in detail.

[0027] The embodiment of the present application discloses a micro-pressure phase change electrode boiler.

[0028] Reference Figure 1 The micro-pressure phase change electrode boiler comprises a boiler body 1 and a tubular heat exchanger 2. The boiler body 1 is filled with liquid. In the embodiment, the boiler body 1 is filled with pure water. The interior of the boiler body 1 is in a non-full-liquid state. In the embodiment, the liquid in the interior of the boiler body 1 is half of the space in the interior of the boiler body 1. The liquid surface of the liquid in the interior of the boiler body 1 divides the interior of the boiler body 1 into a water space 11 (i.e. the space occupied by the liquid) and a steam space 12 (i.e. the space in the interior of the boiler body 1 except the liquid). The tubular heat exchanger 2 is installed in the steam space 12. The inlet and outlet of the tubular heat exchanger 2 are connected to an external network to be heated, so as to heat the outside. An electrode heating device 21 (such as an electric heating rod) is arranged on the boiler body 1. The electrode heating device 21 is inserted into the liquid and used for heating the liquid. After the liquid is heated, steam is generated. The steam exchanges heat with the tubular heat exchanger 2 in the steam space 12, so as to heat the outside. In the present application, the tubular heat exchanger 2 is arranged in the interior of the boiler body 1. On the one hand, the space in the interior of the boiler body 1 is effectively utilized, and the land occupation of the micro-pressure phase change boiler is reduced. On the other hand, the heat exchanger is arranged in the interior of the boiler body 1, directly exchanges heat with the steam, improves the heat exchange efficiency, and reduces the power consumption.

[0029] Reference Figure 1The electrode heating device 21 is connected with an external high-voltage power line to supply power to the electrode heating device 21. An insulating member 3 is arranged at the connection between the power line and the electrode heating device 21. The insulating member 3 is a rubber sleeve arranged outside the power line to reduce the risk of electric shock for the workers.

[0030] With reference to Figure 1 To improve the efficiency of liquid heating, multiple electrode heating devices 21 can be arranged. In this embodiment, three electrode heating devices 21 are arranged.

[0031] With reference to Figure 1 The boiler body 1 is a hollow cylindrical shell structure arranged horizontally. Two tubular heat exchangers 2 are arranged at both ends of the boiler body 1. The arrangement of multiple tubular heat exchangers 2 can improve the heat exchange efficiency and increase the heat supply to the outside.

[0032] With reference to Figure 1 Two partition plates 4 are arranged between the two tubular heat exchangers 2, and the two partition plates 4 are arranged in parallel and spaced apart. The two partition plates 4 divide the water space 11 into a heating space 111 and two return spaces 112. The heating space 111 is the space between the two partition plates 4. The liquid in the heating space 111 is heated to produce steam, which moves towards the tubular heat exchanger 2 and condenses on the surface of the heat exchanger and then returns to the return space 112. The partition plate 4 can prevent the low-temperature water from mixing directly with the water in the heating space 111, thereby ensuring the temperature of the liquid in the heating space 111.

[0033] With reference to Figure 1 A water inlet and outlet 5 is arranged at the position corresponding to the heating space 111 and the return space 112 below the boiler body 1. A connecting pipe is arranged between the water inlet and outlet 5 of the heating space 111 and the water inlet and outlet 5 of the return space 112. The two ends of the connecting pipe are respectively connected to the return space 112 and the heating space 111. A liquid pump (not shown in the figure) is arranged on the connecting pipe. In this embodiment, the liquid pump is a water pump. The water pump can pump the water in the heating space 111 into the return space 112 or pump the water in the return space 112 into the heating space 111 to control the liquid level in the heating space 111. A liquid level gauge 6 is arranged in the return space 112 and the heating space 111 to facilitate the workers to understand the liquid level in the return space 112 and the heating space 111, thereby facilitating the adjustment of the liquid level.

[0034] With reference to Figure 1A plurality of supporting legs 8 are arranged below the boiler body 1 to support the boiler and improve the stability of the boiler during use. An explosion-proof device 7 is arranged on the top of the boiler body 1, which is used to relieve the pressure inside the boiler body 1 when the pressure inside the boiler body 1 suddenly increases. In this embodiment, the explosion-proof device 7 is selected as a valve D373W-16P.

[0035] The implementation principle of the micro-pressure phase change electrode boiler in the embodiment of the present application is that: by arranging the heat exchanger inside the boiler body 1, the space inside the boiler body 1 is effectively utilized, the integration of the micro-pressure phase change boiler is improved, and the floor area of the micro-pressure phase change boiler is reduced. At the same time, the heat exchanger is more directly contacted with the steam for heat exchange, the heat utilization rate is effectively improved, and the power consumption is reduced.

[0036] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A micro-PC electric boiler comprising a boiler body (1) and a tubular heat exchanger (2), characterized in that, The boiler body (1) is hollow inside, and the boiler body (1) is filled with liquid inside, the liquid inside the boiler body (1) is in a non-full liquid state, the liquid level of the liquid inside the boiler body (1) divides the boiler body (1) into a steam space (12) and a water space (11), the steam space (12) is located above the liquid space, the tubular heat exchanger (2) is installed in the steam space (12), and the tubular heat exchanger (2) is connected with an external network to be heated.

2. A micro-pressured phase change electrode boiler according to claim 1, wherein, The electrode heating device (21) is inserted into the liquid inside the boiler body (1), and the electrode heating device (21) is connected with a power supply to generate heat.

3. A micro-pressured phase change electrode boiler according to claim 2, wherein The electrode heating device (21) is provided in multiple.

4. A micro-pressured phase change electrode boiler according to claim 2, wherein The boiler body (1) is provided with a partition plate (4) inside, the partition plate (4) is vertically arranged, the partition plate (4) divides the water space (11) into a reflux space (112) and a heating space (111), the tubular heat exchanger (2) is correspondingly arranged above the reflux space (112), and the electrode heating device (21) is correspondingly arranged in the heating space (111).

5. A micro-pressured phase change electrode boiler according to claim 4, wherein The partition plate (4) is provided in two, the heating space (111) is formed between the two partition plates (4), and the reflux space (112) is formed on the side away from each other of the two partition plates (4). The tubular heat exchanger (2) is correspondingly arranged in the reflux space (112).

6. A micro-pressured phase change electrode boiler according to claim 4 or 5, characterised in that, The outer wall of the boiler body (1) is provided with a connecting pipe, the connecting pipe is provided with two corresponding reflux spaces (112), one end of the connecting pipe is communicated with the reflux space (112), and the other end is communicated with the heating space (111); the connecting pipe is provided with a liquid pump.

7. A micro-pressured phase change electrode boiler according to claim 6, wherein The heating space (111) and the reflux space (112) are provided with a liquid level meter (6).

8. A micro-pressured phase change electrode boiler according to claim 1, wherein, The boiler body (1) is provided below with a plurality of supporting legs (8) for supporting the boiler body (1).

Images