Silicon controlled constant voltage electric heating steam boiler

Abstract

The utility model discloses a silicon controlled constant-voltage electric heating steam boiler which comprises a cabinet body, an electric heating furnace and a filter box are installed in the cabinet body, the electric heating furnace comprises a water storage tank, the water storage tank is connected with a water feeding pump for supplementing water to the water storage tank, the water feeding pump is located in a functional cabinet, a plurality of layers of filter plates are arranged in the filter box, and a filter pump and a circulating pump are further arranged in the functional cabinet. The input end of the filter pump is connected to the water storage tank, the output end of the filter pump is connected to the filter tank, the input end of the circulating pump is connected to the bottom of the filter tank, and the output end of the circulating pump is connected to the lower side of the water storage tank. By arranging the filter tank, the filter pump and the circulating pump, water in the water storage tank is continuously circularly filtered in the filter tank, sediment generated after boiler water is heated is reduced, water flow output by the circulating pump impacts the water stored in the water storage tank, and water scale sediment is further reduced.

Description

Technical Field

[0001] This utility model belongs to the field of boiler filtration technology and relates to a silicon controlled rectifier constant pressure electric heating steam boiler. Background Technology

[0002] A thyristor-controlled constant-pressure electric heating steam boiler is an electric heating steam boiler driven by thyristor elements. When using an electric heating steam boiler, tap water is typically used. During the process of heating tap water into steam, a large amount of scale is generated, which accumulates inside the boiler, affecting its heating efficiency and causing corrosion, thus shortening its service life. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a thyristor-controlled constant-pressure electric heating steam boiler, which effectively solves the problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A thyristor-controlled constant-pressure electric heating steam boiler, comprising:

[0006] The cabinet has a control cabinet on the front and a function cabinet on the rear.

[0007] An electric heating furnace, which is fixedly installed inside the functional cabinet, includes a water storage tank;

[0008] A water supply pump, the output end of which is connected to the water storage tank;

[0009] A filter box, which is installed inside the cabinet, and contains multiple layers of filter plates;

[0010] A filter pump, wherein the input end of the filter pump is connected to the water storage tank and the output end is connected to the upper end of the filter box;

[0011] A circulation pump, the input end of which is connected to the bottom of the filter box and the output end of which is connected to the water storage tank;

[0012] The output end of the circulation pump is located on the lower side of the water storage tank, and the water outlet direction of the circulation pump is parallel to the bottom of the inner side of the water storage tank.

[0013] Optionally, the water storage tank has multiple spray nozzles arranged along its sidewall, the spray nozzles being connected to the output end of the circulation pump, and the water outlet direction of the spray nozzles being parallel to the inner sidewall of the water storage tank at their location.

[0014] Optionally, a placement ring platform is provided inside the filter box, and a filter plate mounting cylinder is detachably installed on the placement ring platform. Multiple layers of filter plates are detachably installed inside the filter plate mounting cylinder, and a detachable cover is provided at the top of the filter box.

[0015] Optionally, the filter plate mounting cylinder includes multiple mounting sub-cylinders, each mounting sub-cylinder having a placement recessed ring on its upper side wall, the filter plate being placed within the placement recessed ring, and the multiple mounting sub-cylinders being detachably connected.

[0016] Optionally, a soft liner is fitted onto the inner wall of the mounting cylinder, and the soft liner covers the inner wall of the mounting cylinder.

[0017] Optionally, the pore size of the multi-layered filter plate gradually decreases from top to bottom.

[0018] Optionally, the output end of the filter pump is connected to a spare branch pipe, the output end of the spare branch pipe is connected to the output end of the circulation pump, and solenoid valves are installed at the output end and input end of the filter box and the spare branch pipe.

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

[0020] By setting up a filter box, a filter pump, and a circulation pump, the water in the storage tank is continuously circulated and filtered in the filter box, reducing the sedimentation produced after the boiler water is heated. The water flow output by the circulation pump impacts the water in the storage tank, further reducing scale buildup. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure from another perspective of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the filter plate mounting cylinder according to an embodiment of the present invention.

[0024] Attached reference numerals: 1. Cabinet; 11. Control cabinet; 12. Function cabinet;

[0025] 2. Electric heating furnace;

[0026] 31. Water supply pump; 32. Filter pump; 321. Spare branch pipe; 33. Circulation pump; 331. Spray nozzle;

[0027] 4. Filter box; 41. Filter plate; 42. Placement ring platform; 43. Filter plate mounting cylinder; 431. Installation cylinder; 432. Placement concave ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 and Figure 2 This utility model discloses a silicon controlled rectifier constant pressure electric heating steam boiler, including a cabinet 1. The front of the cabinet 1 is a control cabinet 11, and the rear is a function cabinet 12. The function cabinet 12 is equipped with an electric heating furnace 2 and a filter box 4. The electric heating furnace 2 includes a water storage tank. The water storage tank is connected to a water supply pump 31 for water replenishment. The water supply pump 31 is located inside the function cabinet 12. The filter box 4 is equipped with multi-layer filter plates 41. The function cabinet 12 is also equipped with a filter pump 32 and a circulation pump 33. The input end of the filter pump 32 is connected to the water storage tank, and the output end is connected to the filter box 4. The input end of the circulation pump 33 is connected to the bottom of the filter box 4, and the output end is connected to the lower side of the water storage tank. The water outlet direction of the circulation pump 33 is parallel to the bottom of the inner side of the water storage tank.

[0030] Specifically, the electric heating furnace 2 heats the water in the water storage tank into steam, which is then transported through pipes to equipment requiring high-temperature steam. During the heating process in the water storage tank, scale deposits are generated. The heated water is then pumped into the filter box 4 by the filter pump 32. After passing through multiple layers of filtration in the filter box 4, the filtered water is returned to the water storage tank by the circulation pump 33. The output end of the circulation pump 33 is located at the bottom of the water storage tank, so that the water flow from the circulation pump 33 impacts the water in the water storage tank, causing the water to churn and reducing scale deposition. This allows the scale to be dispersed in the water as much as possible and then carried into the filter box 4 by the filter pump 32 for filtration.

[0031] In this way, by setting up a filter box 4, a filter pump 32 and a circulation pump 33, the water in the storage tank is continuously circulated and filtered in the filter box 4, reducing the sediment generated after the boiler water is heated, and the water flow output by the circulation pump 33 impacts the water in the storage tank, further reducing scale deposition.

[0032] In some feasible configurations, the control cabinet 11 and the electric heating furnace 2 are existing technologies and will not be described in detail here. The filter box 4 can be configured as a rectangular box, and the filter plate 41 is a filter material suitable for the particle size of scale particles. The water outlet direction of the circulation pump 33 is parallel to the bottom of the inner side of the water storage tank, so that the water flow at the output end of the circulation pump 33 impacts the bottom of the inner side of the water storage tank as much as possible to reduce the deposition of scale at the bottom of the water storage tank. When the bottom of the inner side of the water storage tank is not flat, the water outlet direction of the circulation pump 33 is as close as possible to the bottom surface of the water storage tank to impact the bottom surface. The input end of the filter pump 32 is connected to the bottom of the water storage tank to reduce the possibility of steam entering the filter box 4.

[0033] It should be noted that the electric heating steam boiler is a high-pressure device with high steam pressure. When water flows in and out through the circulation pump 33 and the filter pump 32, it may cause pressure changes in the water storage tank. The circulation pump 33 and the filter pump 32 are connected to the pressure gauge signal of the water storage tank or other relevant locations through the control system in the control cabinet 11 to reduce the danger caused by pressure changes.

[0034] As a specific embodiment of a thyristor constant pressure electric heating steam boiler provided by the utility model, the water storage tank has multiple water spray nozzles 331 arrayed along the side wall. The water spray nozzles 331 are connected to the output end of the circulation pump 33, and the water outlet direction of the water spray nozzles 331 is parallel to the inner side wall of the water storage tank at the location.

[0035] Overall, by setting multiple spray nozzles 331 at the output end of the circulation pump 33, the spray nozzles 331 impact the areas on the inner wall of the water storage tank where scale may form. At the same time, the multiple spray nozzles 331 increase the mixing of scale particles with water, further reducing the possibility of scale deposition in the water storage tank.

[0036] In some feasible methods, the nozzle 331 is a commonly used water nozzle, which is connected to the output pipe of the circulating pump 33 via a pipe.

[0037] As another specific embodiment of the thyristor-controlled constant-pressure electric heating steam boiler provided by the utility model, please refer to [link / reference needed]. Figure 2 and Figure 3 The filter box 4 has a placement ring platform 42 inside, and a filter plate mounting cylinder 43 is detachably installed on the placement ring platform 42. The multi-layer filter plate 41 is detachably installed inside the filter plate mounting cylinder 43. The filter box 4 has a detachable cover at the top.

[0038] Based on the specific usage scenario, the filter plate 41 is used to filter scale and needs to be cleaned and replaced frequently. By setting the filter plate mounting cylinder 43, the multi-layer filter plate 41 can be removed as a whole from the filter box 4, which makes it easy to replace and clean the filter plate 41.

[0039] In some feasible methods, the placement ring platform 42 is an annular boss that is fixedly installed on the side wall of the filter box 4, supported at the bottom of the filter plate mounting cylinder 43, and the removable cover is bolted to the upper end of the filter box 4, and the removable cover is sealed to the filter box 4.

[0040] Furthermore, the filter plate mounting cylinder 43 includes multiple mounting sub-cylinders 431. The upper side wall of the mounting sub-cylinder 431 is provided with a placement concave ring 432. The filter plate 41 is placed in the placement concave ring 432. The multiple mounting sub-cylinders 431 are detachably connected.

[0041] It should be understood that by setting up the installation cylinder 431, each layer of filter plate 41 is installed in a different installation cylinder 431. On the one hand, this facilitates the installation of the filter plate 41. On the other hand, the segmented design facilitates the cleaning of scale on the inner wall of the filter plate installation cylinder 43.

[0042] In some feasible methods, a through hole is provided at the top corner of the mounting cylinder 431 from top to bottom. After the mounting cylinder 431 is placed to form the filter plate mounting cylinder 43, it is fixedly connected by bolts through the through hole.

[0043] Furthermore, a soft liner is fitted to the inner wall of the mounting cylinder 431, and the soft liner covers the inner wall of the mounting cylinder 431.

[0044] It should be understood that by setting up a soft liner, scale deposits adhere to the soft liner, and the scale becomes a hard deposit, which is easier to clean through the soft liner.

[0045] In some feasible methods, the soft liner can be made of a high-temperature resistant soft material such as butyl rubber, and threaded holes can be opened on the side wall of the mounting sleeve 431 to fix the soft liner with bolts.

[0046] As a specific embodiment of a silicon controlled rectifier constant pressure electric heating steam boiler provided by the utility model, the pore size of the multi-layer filter plate 41 gradually decreases from top to bottom.

[0047] It should be understood that by using filter plates 41 with different pore sizes to filter sediments of different pore sizes, the possibility of scale buildup on a single filter plate 41 is reduced, thereby reducing the need to clean the filter plates 41.

[0048] As a specific embodiment of the thyristor-controlled constant-pressure electric heating steam boiler provided by the utility model, please refer to Figure 2 The output end of the filter pump 32 is connected to a spare branch pipe 321, the output end of the spare branch pipe 321 is connected to the output end of the circulation pump 33, and solenoid valves are installed at the output end and input end of the filter box 4 and the spare branch pipe 321.

[0049] It should be understood that by setting up a spare branch pipe 321 and a solenoid valve, water can be circulated through the spare branch pipe 321 when the filter box 4 needs to be cleaned. When cleaning the filter box 4, the impact of the output end of the circulation pump 33 on the water storage tank is not affected, thereby reducing scale deposition.

[0050] In some feasible methods, when it is necessary to clean the filter box 4, open the backup branch pipe 321 and close the solenoid valves at the output and input ends of the filter box 4 and the circulation pump 33, so that the water flows through the backup branch pipe 321 for circulation. It should be noted that when using the circulation pump 33, which cannot be closed after stopping operation, a check valve can be installed at the input end of the circulation pump 33 to prevent the water from entering the circulation pump 33 and affecting it when the water flows through the backup branch pipe 321.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thyristor-controlled constant-pressure electric heating steam boiler, characterized in that, include: The cabinet has a control cabinet on the front and a function cabinet on the rear. An electric heating furnace, which is fixedly installed inside the functional cabinet, includes a water storage tank; A water supply pump, the output end of which is connected to the water storage tank; A filter box, which is installed inside the cabinet, and contains multiple layers of filter plates; A filter pump, wherein the input end of the filter pump is connected to the water storage tank and the output end is connected to the upper end of the filter box; A circulation pump, the input end of which is connected to the bottom of the filter box and the output end of which is connected to the water storage tank; The output end of the circulation pump is located on the lower side of the water storage tank, and the water outlet direction of the circulation pump is parallel to the bottom of the inner side of the water storage tank.

2. The thyristor-controlled constant pressure electric heating steam boiler according to claim 1, characterized in that: The water storage tank has multiple spray nozzles arranged along its side wall. The spray nozzles are connected to the output end of the circulation pump, and the water outlet direction of the spray nozzles is parallel to the inner side wall of the water storage tank at their location.

3. The thyristor-controlled constant-pressure electric heating steam boiler according to claim 1, characterized in that: The filter box has a placement ring platform inside, on which a filter plate mounting cylinder is detachably installed. Multiple layers of filter plates are detachably installed inside the filter plate mounting cylinder. The filter box has a detachable cover at the top.

4. A thyristor-controlled constant-pressure electric heating steam boiler according to claim 3, characterized in that: The filter plate mounting cylinder includes multiple mounting sub-cylinders. The upper side wall of each mounting sub-cylinder is provided with a placement recessed ring. The filter plate is placed in the placement recessed ring. The multiple mounting sub-cylinders are detachably connected.

5. A thyristor-controlled constant-pressure electric heating steam boiler according to claim 4, characterized in that: A soft liner is fitted to the inner wall of the mounting cylinder, and the soft liner covers the inner wall of the mounting cylinder.

6. A thyristor-controlled constant-pressure electric heating steam boiler according to any one of claims 1-5, characterized in that: The pore size of the multi-layered filter plate gradually decreases from top to bottom.

7. A thyristor-controlled constant-pressure electric heating steam boiler according to any one of claims 1-5, characterized in that: The output end of the filter pump is connected to a spare branch pipe, the output end of the spare branch pipe is connected to the output end of the circulation pump, and solenoid valves are installed at the output end and input end of the filter box and the spare branch pipe.

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