Boiler group control device

Abstract

The utility model provides a boiler group control device which comprises a boiler group assembly, a first boiler body used for heating water for heat supply is arranged in the boiler group assembly, and a second boiler body is arranged on the right side of the first boiler body. Compared with the prior art, the boiler group assembly and the boiler communicating pipe assembly are additionally arranged, the first boiler body, the second boiler body, the third boiler body and the fourth boiler body are controlled to be switched for use through the control box in the using process, and water is guided and conveyed through the water inlet pipe of the first boiler body at the leftmost end; gas combustion heating is achieved through the first boiler body, the second boiler body, the third boiler body and the fourth boiler body, heat supply water is guided and conveyed through the span of the boiler communicating pipe assembly according to use of the first boiler body, the second boiler body, the third boiler body and the fourth boiler body, control and adjustment can be conveniently conducted according to the outlet water temperature, and by additionally arranging the boiler group assembly, the heat supply efficiency is improved. And the steam can be recycled.

Description

Technical Field

[0001] This utility model belongs to the field of boiler technology, and specifically relates to a boiler group control device. Background Technology

[0002] A gas-fired boiler is a heat energy conversion device, mainly composed of two main parts: the boiler and the furnace, as well as accessories, instrumentation equipment, and automatic control and protection systems to ensure its safe, economical, and continuous operation. Fuel burns in the furnace, releasing heat that continuously heats the water in the boiler, raising its temperature and generating pressurized steam. A boiler group is a structure with multiple boilers working together to heat water. The number of boilers activated varies depending on the heating needs, ensuring synchronization between the set temperature and the actual outlet water temperature, reducing deviations, and improving the actual heating efficiency of the boiler group. Most gas-fired boiler controls rely on manual adjustment of boiler start-up and shutdown, boiler load, or outlet water temperature, resulting in high levels of human intervention, increased workload for operators, and inherent uncertainties and delays. This leads to discrepancies in the synchronization between the design temperature and the actual outlet water temperature, and the maintenance of different boilers within the boiler group presents challenges in diverting heating water across different areas.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a boiler group control device to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a boiler group control device, comprising: a boiler group assembly, wherein the boiler group assembly is provided with a first boiler body for heating the heating water, a second boiler body is provided on the right side of the first boiler body, a third boiler body is provided on the right side of the second boiler body, and a fourth boiler body is provided on the right side of the third boiler body, a set of water outlet pipes are fixedly connected to the upper right side of the first boiler body, the second boiler body, the third boiler body, and the fourth boiler body, and a set of water inlet pipes are fixedly connected to the left rear side of the first boiler body, the second boiler body, the third boiler body, and the fourth boiler body, a boiler connecting pipe assembly is installed above the water outlet pipes, and a control box is provided on the rear side of the second boiler body.

[0006] In a preferred embodiment, four DCS controllers are installed inside the control box. Each DCS controller is electrically connected to and controls the first boiler body, the second boiler body, the third boiler body, and the fourth boiler body. The DCS controllers installed inside the control box enable the start-up control of the first boiler body, the second boiler body, the third boiler body, and the fourth boiler body, and regulate the operating load.

[0007] In a preferred embodiment, a set of burners is installed on the left side of the first boiler body, the second boiler body, the third boiler body and the fourth boiler body, and a water pump is installed on the rear side of the water inlet pipe of the first boiler body.

[0008] In a preferred embodiment, a set of guide pipes is installed between the inlet and outlet pipes of the first boiler body and the second boiler body, the second boiler body and the third boiler body and the fourth boiler body. The start and stop of the first boiler body, the second boiler body, the third boiler body and the fourth boiler body are controlled according to actual use, and the boilers that are not started only serve as water passage structures to realize water flow through several sets of guide pipes.

[0009] In a preferred embodiment, a set of connecting flange one is installed at the outer end of both the inlet pipe and the outlet pipe, a set of connecting flange two is fixedly connected to both ends of the guide pipe, and a set of span connecting pipe is fixedly connected to the front side above the guide pipe.

[0010] In a preferred embodiment, a span connecting flange is fixedly connected above the span connecting pipe, a connecting pipe is provided in the boiler connecting pipe assembly, and a set of solenoid valves are installed on the left side of the connecting pipe and in each of the three sets of guide pipes.

[0011] The connecting pipe is equipped with a set of two span connecting flanges above each of the three sets of span connecting flanges, and a set of three-way valves is installed on the connecting pipe at the second boiler body and the third boiler body.

[0012] As a preferred embodiment, a terminal water outlet pipe is installed above the rightmost water outlet pipe. A temperature sensor is installed inside the terminal water outlet pipe. Water flows through multiple sets of boilers to achieve heating at a set temperature, and the temperature is monitored by the temperature sensor when it is discharged through the terminal water outlet pipe.

[0013] In a preferred embodiment, a set of steam outlet pipes is fixedly connected to the middle position of the upper part of the first boiler body, the second boiler body, the third boiler body and the fourth boiler body. A steam conduit is installed above the steam outlet pipe. The front ends of the four sets of steam conduits are all connected to the front steam recovery box. When the gas is burned to heat the water for heating, the steam is led out through the steam outlet pipe and concentrated in the steam recovery box, so that the steam can be recovered and reused.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] By adding boiler group components and boiler connecting pipe components, the first, second, third, and fourth boiler bodies can be switched and used via the control box during operation. Water is guided through the inlet pipe of the leftmost first boiler body and then heated by gas combustion through the first, second, third, and fourth boiler bodies. The heating water is guided through the span of the boiler connecting pipe components according to the use of the first, second, third, and fourth boiler bodies, which can be easily controlled and adjusted according to the outlet water temperature.

[0016] By adding boiler group components, when gas combustion heats the water for heating, the steam is discharged through the steam outlet pipe and concentrated in the steam recovery tank, which enables the steam to be recovered and reused. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a boiler group control device according to the present invention.

[0019] Figure 2 This is a schematic diagram of the left side of the boiler group component in a boiler group control device according to the present invention.

[0020] Figure 3 This is a schematic diagram of the right side of the boiler group component in a boiler group control device according to the present invention.

[0021] Figure 4 This is a schematic diagram of the boiler connecting pipe assembly in a boiler group control device according to the present invention.

[0022] In the diagram, 100-boiler group assembly, 101-first boiler body, 102-second boiler body, 103-third boiler body, 104-fourth boiler body, 105-burner, 106-control box, 107-feed water pump, 108-inlet pipe, 109-outlet pipe, 110-connecting flange one, 111-guide pipe, 112-span connecting pipe, 113-span connecting flange one, 114-steam outlet pipe, 115-steam conduit, 116-steam recovery box, 117-terminal outlet pipe, 118-temperature sensor;

[0023] Boiler connecting pipe assembly, 201-span connecting flange II, 202-connecting pipe, 203-solenoid valve, 204-three-way valve. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 As the first embodiment of this utility model:

[0026] A boiler group control device includes: a boiler group assembly 100, wherein a first boiler body 101 for heating the heating water is provided in the boiler group assembly 100, and a second boiler body 102 is provided on the right side of the first boiler body 101.

[0027] The second boiler body 102 is provided with a third boiler body 103 on the right side, and the third boiler body 103 is provided with a fourth boiler body 104 on the right side. A set of water outlet pipes 109 are fixedly connected to the upper right side of the first boiler body 101, the second boiler body 102, the third boiler body 103 and the fourth boiler body 104.

[0028] A set of inlet pipes 108 are fixedly connected to the left rear side of the first boiler body 101, the second boiler body 102, the third boiler body 103 and the fourth boiler body 104. A boiler connecting pipe assembly 200 is installed above the outlet pipe 109. A control box 106 is provided on the rear side of the second boiler body 102.

[0029] Four DCS controllers are installed inside the control box 106. Each DCS controller is electrically connected to and controls the first boiler body 101, the second boiler body 102, the third boiler body 103, and the fourth boiler body 104. The DCS controllers installed inside the control box 106 realize the start-up control of the first boiler body 101, the second boiler body 102, the third boiler body 103, and the fourth boiler body 104, and adjust the operating load.

[0030] A set of burners 105 is installed on the left side of the first boiler body 101, the second boiler body 102, the third boiler body 103 and the fourth boiler body 104. A water pump 107 is installed on the rear side of the water inlet pipe 108 of the first boiler body 101.

[0031] A set of guide pipes 111 are installed between the inlet pipes 108 and outlet pipes 109 of the first boiler body 101 and the second boiler body 102, the second boiler body 102 and the third boiler body 103, and the third boiler body 103 and the fourth boiler body 104. The start-up and shutdown of the first boiler body 101, the second boiler body 102, the third boiler body 103 and the fourth boiler body 104 are controlled according to actual use. The boilers that are not started only serve as water passage structures to guide water flow through several sets of guide pipes 111.

[0032] A set of connecting flange 110 is installed at the outer end of both the inlet pipe 108 and the outlet pipe 109. A set of connecting flange 201 is fixedly connected to both ends of the guide pipe 111. A set of span connecting pipe 112 is fixedly connected to the front side above the guide pipe 111.

[0033] A span connecting flange 113 is fixedly connected above the span connecting pipe 112. A connecting pipe 202 is provided in the boiler connecting pipe assembly 200. A set of solenoid valves 203 is installed on the left side of the connecting pipe 202 and in each of the three sets of guide pipes 111.

[0034] The connecting pipe 202 is equipped with a set of span connecting flange 201 above each of the three sets of span connecting flanges 113. A set of three-way valves 204 are installed on the connecting pipe 202 at the second boiler body 102 and the third boiler body 103.

[0035] A terminal water outlet pipe 117 is installed above the rightmost water outlet pipe 109. A temperature sensor 118 is installed inside the terminal water outlet pipe 117. Water flows through multiple sets of boilers to achieve the set temperature for heating, and when it is discharged through the terminal water outlet pipe 117, the temperature is monitored by the temperature sensor 118.

[0036] Specifically, in the actual use of the boiler group assembly 100, there are different setting control structures. The first boiler body 101, the second boiler body 102, the third boiler body 103 and the fourth boiler body 104 are all automatically controlled by the DCS controller installed in the control box 106. The feed water pump 107 introduces external water through the water inlet pipe 108 of the first boiler body 101. After being heated by the boiler that is actually started, the water is connected and guided between the two boiler groups through the three sets of guide pipes 111. The boiler that is not started only serves as a water passage structure and is finally discharged through the terminal water outlet pipe 117. The actual outlet water temperature is monitored by the temperature sensor 118.

[0037] Secondly, when the actual outlet water temperature deviates significantly from the preset temperature, the load can be adjusted based on the load value of the already started boilers, and the start-up of other boilers can be initiated. This allows for the combined use of single, two, three, and four boilers, and the boiler connecting pipe assembly 200 can connect non-adjacent boilers across the span, ensuring that the shutdown of boilers does not affect the actual heating supply. This facilitates control and adjustment based on the outlet water temperature.

[0038] Please see Figures 1-3 As a second embodiment of this utility model:

[0039] A set of steam outlet pipes 114 are fixedly connected to the middle position above the first boiler body 101, the second boiler body 102, the third boiler body 103 and the fourth boiler body 104. A steam conduit 115 is installed above the steam outlet pipes 114. The front ends of the four sets of steam conduits 115 are all connected to the front steam recovery box 116. When the gas is burned to heat the water for heating, the steam is led out through the steam outlet pipes 114 and concentrated in the steam recovery box 116.

[0040] Based on the first embodiment described above, when the gas is used to heat the water for heating, high-temperature steam is generated inside the first boiler body 101, the second boiler body 102, the third boiler body 103, and the fourth boiler body 104. The steam is discharged through the steam outlet pipe 114 and concentrated in the steam recovery box 116 through the steam conduit 115, thereby enabling the steam to be recovered and reused.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boiler group control device, comprising: A boiler group assembly (100) is characterized in that: the boiler group assembly (100) is provided with a first boiler body (101) for heating the heating water, and a second boiler body (102) is provided on the right side of the first boiler body (101). A third boiler body (103) is provided on the right side of the second boiler body (102), and a fourth boiler body (104) is provided on the right side of the third boiler body (103). A set of water outlet pipes (109) are fixedly connected to the upper right side of the first boiler body (101), the second boiler body (102), the third boiler body (103) and the fourth boiler body (104). A set of water inlet pipes (108) are fixedly connected to the left rear side of the first boiler body (101), the second boiler body (102), the third boiler body (103) and the fourth boiler body (104). A boiler connecting pipe assembly (200) is installed above the water outlet pipe (109). A control box (106) is provided on the rear side of the second boiler body (102).

2. The boiler group control device as described in claim 1, characterized in that: The control box (106) is equipped with four sets of DCS controllers. Each set of DCS controllers is electrically connected to and controls the first boiler body (101), the second boiler body (102), the third boiler body (103), and the fourth boiler body (104).

3. A boiler group control device as described in claim 2, characterized in that: A set of burners (105) is installed on the left side of the first boiler body (101), the second boiler body (102), the third boiler body (103) and the fourth boiler body (104), and a water pump (107) is installed on the rear side of the water inlet pipe (108) of the first boiler body (101).

4. A boiler group control device as described in claim 1, characterized in that: A set of guide pipes (111) are installed between the inlet pipe (108) and outlet pipe (109) of the first boiler body (101) and the second boiler body (102), the second boiler body (102) and the third boiler body (103), and the third boiler body (103) and the fourth boiler body (104).

5. A boiler group control device as described in claim 4, characterized in that: A set of connecting flange one (110) is installed at the outer end of the water inlet pipe (108) and the water outlet pipe (109). A set of connecting flange two (201) is fixedly connected at both ends of the guide pipe (111). A set of span connecting pipe (112) is fixedly connected at the front of the guide pipe (111).

6. The boiler group control device according to claim 5, characterized in that: A span connecting flange (113) is fixedly connected above the span connecting pipe (112). A connecting pipe (202) is provided in the boiler connecting pipe assembly (200). A set of solenoid valves (203) is installed on the left side of the connecting pipe (202) and in the three sets of guide pipes (111). A set of span connecting flanges (201) is provided above the three sets of span connecting flanges (113) on the connecting pipe (202). A set of three-way valves (204) is installed on the connecting pipe (202) at the second boiler body (102) and the third boiler body (103).

7. A boiler group control device as described in claim 1, characterized in that: A terminal water outlet pipe (117) is installed above the rightmost water outlet pipe (109), and a temperature sensor (118) is installed inside the terminal water outlet pipe (117).

8. A boiler group control device as described in claim 1, characterized in that: A set of steam outlet pipes (114) is fixedly connected to the middle position above the first boiler body (101), the second boiler body (102), the third boiler body (103) and the fourth boiler body (104). A steam conduit (115) is installed above the steam outlet pipe (114). The front ends of the four sets of steam conduits (115) are all connected to the front steam recovery box (116).

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