Hydrogen risk prevention and control system and hydrogen production plant with same

Abstract

The utility model discloses a hydrogen risk prevention and control system and a hydrogen production plant with the same, and relates to the field of safety of hydrogen production equipment. The hydrogen risk prevention and control system comprises a plant body, a hydrogen detection piece, a drainage assembly and a controller, and the plant body is provided with an inner cavity; the hydrogen detection piece is mounted in the inner cavity; the drainage assembly comprises an air inlet drainage piece and an exhaust drainage piece. And the controller is electrically connected with the hydrogen detection piece. Control is carried out through the controller according to the hydrogen concentration, on one hand, hydrogen exhausted out of the inner cavity is drained through the exhaust drainage piece, on the other hand, external atmosphere is drained into the inner cavity through the air inlet drainage piece, the hydrogen concentration of the inner cavity is reduced, and therefore hydrogen cloud clusters with the high local concentration are prevented from directly passing through the exhaust fan. The hydrogen risk prevention and control system can detect and control hydrogen leakage accidents of the hydrogen production plant, reduces loss caused by hydrogen leakage, and can solve the problems that the burning and explosion risk is increased and the safety is reduced during the hydrogen leakage accidents.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen production equipment safety, and in particular to a hydrogen risk prevention and control system and a hydrogen production plant having the same. Background Art

[0002] Hydrogen energy plays an important role in the future energy landscape due to its high calorific value, zero pollution and easy access. It can adjust the energy structure and ensure energy security. Renewable energy water electrolysis hydrogen production technology plays an important role in achieving the dual carbon goals. However, hydrogen is a flammable and explosive gas. Once a hydrogen leak occurs during the hydrogen production process, it will threaten the safety of equipment and personnel in the plant.

[0003] The existing detection and control method for hydrogen leakage accidents in electrolytic water hydrogen production plants is usually to directly discharge the hydrogen in the plant to the outside through an exhaust fan after the hydrogen detection equipment detects the hydrogen leakage. However, when a hydrogen leakage accident occurs in a large electrolytic water hydrogen production plant, the total amount of hydrogen leaked in the plant and the local hydrogen concentration increase. The hydrogen cloud passing through the exhaust fan may explode, increasing the risk of explosion when the control equipment handles the leaked hydrogen in the plant. Utility Model Content

[0004] In order to solve the technical problems raised by the above background technology, the utility model provides a hydrogen risk prevention and control system, including:

[0005] The plant body has an inner cavity;

[0006] A hydrogen detection component installed in the inner cavity, wherein the hydrogen detection component is suitable for detecting the hydrogen concentration in the inner cavity;

[0007] A guide assembly, the guide assembly comprising at least one air intake guide member and at least one exhaust guide member, the air intake guide member and the exhaust guide member are respectively installed in the inner cavity at a relative interval, the air intake side of the air intake guide member is connected to the outside atmosphere, and the air outlet side of the air intake guide member is connected to the inner cavity to introduce the outside atmosphere into the inner cavity; the air intake side of the exhaust guide member is connected to the inner cavity, and the air outlet side of the air intake guide member is connected to the outside atmosphere to guide the gas medium in the inner cavity to the outside atmosphere; the installation height of the air intake guide member is lower than the installation height of the exhaust guide member;

[0008] and a controller, wherein the controller is electrically connected to the hydrogen detection component to receive the hydrogen concentration parameter in the inner cavity, the controller is electrically connected to the air intake guide component, and the controller is electrically connected to the exhaust guide component.

[0009] As a preferred technical solution, a confluence structure is provided on the plant body, the confluence structure is arranged on the top of the plant body, and the exhaust guide member is installed on the confluence structure.

[0010] As a preferred technical solution, the factory building body is provided with at least one exhaust channel, the exhaust channel is installed on the side of the confluence structure close to the inner cavity, the exhaust guide member is installed in the exhaust channel, and the exhaust channel and the exhaust guide member are arranged correspondingly.

[0011] As a preferred technical solution, the confluence structure is configured as an axisymmetric structure, and the exhaust guide member and the exhaust channel are symmetrically arranged on both sides of the confluence structure.

[0012] As a preferred technical solution, four exhaust channels are provided, and the four exhaust channels are distributed on the confluence structure in a rectangular shape.

[0013] As a preferred technical solution, the conduit structure is configured as a herringbone structure.

[0014] As a preferred technical solution, the factory building body is provided with at least one air intake channel, which is used to connect the outside atmosphere and the inner cavity. The air intake guide member is installed in the air intake channel, and the air intake channel and the air intake guide member are arranged correspondingly.

[0015] As a preferred technical solution, at least two hydrogen gas detection components are provided, and at least two hydrogen gas detection components are arranged at intervals along the height direction of the plant body.

[0016] The utility model also provides a hydrogen production plant, including the above-mentioned hydrogen risk prevention and control system.

[0017] As a preferred technical solution, the hydrogen production plant further includes hydrogen production equipment, and the hydrogen production equipment is arranged in the inner cavity of the plant body.

[0018] The technical solution provided by the utility model has the following advantages:

[0019] The hydrogen risk prevention and control system provided by the utility model comprises a plant body, a hydrogen detection component, a drainage component and a controller, the plant body has an inner cavity; the hydrogen detection component is installed in the inner cavity, and the hydrogen detection component is suitable for detecting the hydrogen concentration parameter in the inner cavity; the drainage component comprises at least one air intake drainage component and at least one exhaust drainage component, the air intake drainage component and the exhaust drainage component are respectively installed in the inner cavity at relative intervals, the air intake side of the air intake drainage component is connected to the outside atmosphere, and the air outlet side of the air intake drainage component is connected to the inner cavity to introduce the outside atmosphere into the inner cavity; the air intake side of the exhaust drainage component is connected to the inner cavity, and the air outlet side of the air intake drainage component is connected to the outside atmosphere to guide the gas medium in the inner cavity to the outside atmosphere; the installation height of the air intake drainage component is lower than the installation height of the exhaust drainage component; the controller is electrically connected to the hydrogen detection component to receive the hydrogen concentration parameter in the inner cavity, the controller is electrically connected to the air intake drainage component, and the controller is electrically connected to the exhaust drainage component.

[0020] The hydrogen risk prevention and control system of this structure detects the hydrogen concentration in the inner cavity of the plant body through a hydrogen detection component to feed back to the controller, and the controller implements control according to the hydrogen concentration. On the one hand, the hydrogen in the inner cavity is drained out through the exhaust drainage component, and on the other hand, the external atmosphere is drained into the inner cavity through the air intake drainage component to reduce the hydrogen concentration in the inner cavity, thereby preventing local hydrogen clouds with high concentrations from directly passing through the exhaust fan. The hydrogen risk prevention and control system provided by the utility model can detect and control hydrogen leakage accidents in hydrogen production plants, reduce the losses caused by hydrogen leakage, and can solve the problems of increased combustion and explosion risks and reduced safety in hydrogen leakage accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of the hydrogen risk prevention and control system provided by the utility model;

[0023] Figure 2 A schematic diagram of the structure of the hydrogen risk prevention and control system provided by the utility model from a top view;

[0024] Figure 3 A working principle diagram of the hydrogen risk prevention and control system provided by the utility model;

[0025] Description of reference numerals:

[0026] 1-factory building body; 11-air inlet channel; 12-exhaust channel; 13-confluence structure;

[0027] 2-hydrogen detection component; 31-intake guide component; 32-exhaust guide component;

[0028] 4-controller; 5-hydrogen production equipment. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Example

[0034] This embodiment provides a hydrogen risk prevention and control system, which includes a plant body 1, a hydrogen detection component 2, a drainage component and a controller 4.

[0035] See also Figure 1 The plant body 1 has an inner cavity, and the hydrogen detection component 2 is installed in the inner cavity. The hydrogen detection component 2 is suitable for detecting the hydrogen concentration in the inner cavity.

[0036] In this embodiment, see Figure 1 and Figure 2 The guide assembly includes an air intake guide 31 and an exhaust guide 32. The air intake guide 31 and the exhaust guide 32 are installed in the inner cavity at intervals. The air intake side of the air intake guide 31 is connected to the outside atmosphere, and the air outlet side of the air intake guide 31 is connected to the inner cavity to introduce the outside atmosphere into the inner cavity; the air intake side of the exhaust guide 32 is connected to the inner cavity, and the air outlet side of the air intake guide 31 is connected to the outside atmosphere to guide the gas medium in the inner cavity to the outside atmosphere; the installation height of the air intake guide 31 is lower than the installation height of the exhaust guide 32. Among them, one or more air intake guides 31 are provided, and one or more exhaust guides 32 are provided.

[0037] In this embodiment, see Figures 1 to 3 The controller 4 is electrically connected to the hydrogen detection component 2 to receive the hydrogen concentration parameter in the inner cavity, the controller 4 is electrically connected to the air intake guide component 31, and the controller 4 is electrically connected to the exhaust guide component 32, wherein the electrical connection can be achieved through wire connection or wireless communication connection.

[0038] In a specific implementation, the controller 4 is used to obtain the hydrogen concentration parameter collected by the hydrogen detection component 2, and determine whether the hydrogen concentration parameter is greater than or equal to a preset threshold value. When the hydrogen concentration parameter is greater than or equal to the preset threshold value, the air intake guide component 31 and the exhaust guide component 32 are controlled to start, and the external atmosphere is introduced into the inner cavity through the air intake guide component 31 to dynamically dilute the inner cavity gas, and the inner cavity gas is discharged through the exhaust guide component 32, thereby achieving the purpose of reducing the hydrogen concentration in the inner cavity and obtaining good safety in the hydrogen production stage.

[0039] As a further embodiment, see Figure 1 , there are two or more hydrogen detection parts 2, at least two hydrogen detection parts 2 are arranged at intervals along the height direction of the plant body 1. The hydrogen concentrations in different height areas are detected by hydrogen detection parts 2 with different upper and lower heights. Taking the case where there are two hydrogen detection parts 2 as an example, they are named as the first hydrogen detection part 2 and the second hydrogen detection part 2 respectively. The controller 4 is configured with a first threshold value corresponding to the first hydrogen detection part 2, and the controller 4 is configured with a second threshold value corresponding to the second hydrogen detection part 2. When the controller 4 obtains the hydrogen concentration parameter collected by the first hydrogen detection part 2 is greater than or equal to the first threshold value, or when the controller 4 obtains the hydrogen concentration parameter collected by the second hydrogen detection part 2 is greater than or equal to the second threshold value, the intake guide part 31 and the exhaust guide part 32 are controlled to work to reduce the hydrogen concentration in the inner cavity. The hydrogen risk prevention and control system provided in this embodiment adopts multiple hydrogen detection parts 2, which is conducive to improving the sensitivity of the system to detect hydrogen, and can dynamically monitor and adjust to reduce the hydrogen concentration in the inner cavity, which is conducive to improving the safety of the hydrogen discharge process after a hydrogen leakage accident.

[0040] In a specific embodiment, the hydrogen gas detection element 2 is configured as a thermal conductivity sensor or an optical sensor. Of course, the hydrogen gas detection element 2 can be configured as a detector integrating a thermal conductivity sensor and an optical sensor.

[0041] In some embodiments, see Figure 1 The plant body 1 is provided with one or more air inlet channels 11, and the air inlet channels 11 are used to connect the outside atmosphere and the inner cavity. The air inlet guide member 31 is installed in the air inlet channel 11, and the air inlet channel 11 and the air inlet guide member 31 are correspondingly arranged.

[0042] In one embodiment, the air intake channel 11 is configured as a pipeline structure. In another embodiment, a through groove is configured on the lateral wall surface of the plant body 1 to form the air intake channel 11 .

[0043] In this embodiment, four air inlet guides 31 are provided. In one embodiment, the four air inlet guides 31 are provided on the same lateral wall of the plant body 1, which can facilitate the arrangement and layout of the air inlet guides 31 and facilitate installation; in another embodiment, the plant body 1 has two lateral walls arranged opposite to each other, two air inlet guides 31 are arranged on one of the lateral walls, and two air inlet guides 31 are arranged on the other lateral wall. By guiding the intake air from the two lateral walls arranged opposite to each other, this arrangement can reduce the interference between the intake guides 31, which is conducive to the rapid intake of air into the inner cavity to reduce the concentration of hydrogen.

[0044] As a further embodiment, see Figure 1 The plant body 1 is provided with a confluence structure 13, which is arranged at the top of the plant body 1, and the exhaust guide member 32 is installed on the confluence structure 13. The low-density hydrogen is collected at the top of the plant body 1 through the confluence structure 13, and the exhaust guide member 32 is started to discharge it.

[0045] In some embodiments, see Figure 1 and Figure 2 The plant body 1 is provided with one or more exhaust channels 12, the exhaust channels 12 are installed on the side of the converging structure 13 close to the inner cavity, the exhaust guide member 32 is installed in the exhaust channels 12, and the exhaust channels 12 and the exhaust guide members 32 are arranged correspondingly. An exhaust guide member 32 is arranged in each exhaust channel 12, and the exhaust guide member 32 can be set as a fan member.

[0046] In one embodiment, the exhaust passage 12 is configured as a pipeline structure. In another embodiment, a through groove is configured on the lateral wall of the plant body 1 to form the exhaust passage 12 .

[0047] In some embodiments, the confluence structure 13 is configured as an axisymmetric structure, and the exhaust guide member 32 and the exhaust channel 12 are symmetrically arranged on both sides of the confluence structure 13 .

[0048] As a preferred embodiment, the bus structure 13 is configured as a gable roof structure.

[0049] As a preferred embodiment, four exhaust channels 12 are provided, and the four exhaust channels 12 are distributed in a rectangular shape on the confluence structure 13. Accordingly, four exhaust guides 32 are provided. The confluence structure 13 has a first vertical wall surface and a second vertical wall surface that are arranged oppositely, two exhaust guides 32 are arranged on the first vertical wall surface, and two exhaust guides 32 are arranged on the second vertical wall surface. By guiding the exhaust gas from the first vertical wall surface and the second vertical wall surface that are arranged oppositely; this arrangement is conducive to increasing the discharge rate of the hydrogen in the inner cavity, so as to achieve the purpose of quickly reducing the hydrogen concentration in the inner cavity.

[0050] The hydrogen risk prevention and control system provided in the present embodiment detects the hydrogen concentration in the inner cavity of the plant body 1 through the hydrogen detection component 2 to feed back to the controller 4, and the controller 4 implements control according to the hydrogen concentration. On the one hand, the hydrogen discharged from the inner cavity is drained through the exhaust drainage component 32, and on the other hand, the external atmosphere is drained into the inner cavity through the air intake drainage component 31 to reduce the hydrogen concentration in the inner cavity, thereby preventing the local high-concentration hydrogen cloud from directly passing through the exhaust fan. The hydrogen risk prevention and control system provided by the utility model can detect and control hydrogen leakage accidents in hydrogen production plants, reduce the losses caused by hydrogen leakage, and can solve the problems of increased combustion and explosion risks and reduced safety during hydrogen leakage accidents.

[0051] This embodiment also provides a hydrogen production plant, including a hydrogen risk prevention and control system.

[0052] In a specific embodiment, see Figure 1 The hydrogen production plant also includes hydrogen production equipment 5, which is arranged in the inner cavity of the plant body 1.

[0053] The hydrogen production plant provided in this embodiment uses an air inlet guide member 31 to guide the outside atmosphere into the inner cavity to dilute and reduce the hydrogen concentration in the inner cavity, and uses an exhaust guide member 32 to guide the hydrogen out of the inner cavity, thereby obtaining good safety in the hydrogen production stage and avoiding the occurrence of local high concentration of hydrogen in the hydrogen production plant, which poses a safety threat to the equipment and personnel in the hydrogen production plant.

[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A hydrogen risk prevention and control system, characterized in that: include: The plant body (1) has an inner cavity; A hydrogen detection element (2) is installed in the inner cavity, and the hydrogen detection element (2) is suitable for detecting the hydrogen concentration in the inner cavity; A flow guide component, the flow guide component comprising at least one air intake guide member (31) and at least one air exhaust guide member (32), the air intake guide member (31) and the air exhaust guide member (32) being installed in the inner cavity at a relative interval, the air intake side of the air intake guide member (31) being connected to the outside atmosphere, and the air outlet side of the air intake guide member (31) being connected to the inner cavity, so as to introduce the outside atmosphere into the inner cavity; the air intake side of the air exhaust guide member (32) being connected to the inner cavity, and the air outlet side of the air intake guide member (31) being connected to the outside atmosphere, so as to guide the gaseous medium in the inner cavity to the outside atmosphere; the installation height of the air intake guide member (31) is lower than the installation height of the air exhaust guide member (32); and a controller (4), wherein the controller (4) is electrically connected to the hydrogen detection component (2) to receive the hydrogen concentration parameter in the inner cavity, the controller (4) is electrically connected to the air intake guide component (31), and the controller (4) is electrically connected to the exhaust guide component (32).

2. The hydrogen risk prevention and control system according to claim 1, characterized in that: The plant body (1) is provided with a confluence structure (13), the confluence structure (13) is arranged on the top of the plant body (1), and the exhaust gas guide member (32) is installed on the confluence structure (13).

3. The hydrogen risk prevention and control system according to claim 2, characterized in that: The plant body (1) is provided with at least one exhaust channel (12), the exhaust channel (12) is installed on a side of the confluence structure (13) close to the inner cavity, the exhaust guide member (32) is installed in the exhaust channel (12), and the exhaust channel (12) and the exhaust guide member (32) are arranged correspondingly.

4. The hydrogen risk prevention and control system according to claim 3, characterized in that: The confluence structure (13) is arranged as an axisymmetric structure, and the exhaust flow guide member (32) and the exhaust channel (12) are symmetrically arranged on both sides of the confluence structure (13).

5. The hydrogen risk prevention and control system according to claim 3, characterized in that: Four exhaust channels (12) are provided, and the four exhaust channels (12) are distributed in a rectangular shape on the confluence structure (13).

6. The hydrogen risk prevention and control system according to any one of claims 2 to 5, characterized in that: The confluence structure (13) is configured as a herringbone structure.

7. The hydrogen risk prevention and control system according to claim 1, characterized in that: The plant body (1) is provided with at least one air intake channel (11), the air intake channel (11) being used to connect the outside atmosphere and the inner cavity, the air intake guide member (31) being installed in the air intake channel (11), and the air intake channel (11) and the air intake guide member (31) being arranged correspondingly.

8. The hydrogen risk prevention and control system according to claim 1, characterized in that: At least two hydrogen gas detection components (2) are provided, and at least two hydrogen gas detection components (2) are arranged at intervals along the height direction of the plant body (1).

9. A hydrogen production plant, characterized in that: A hydrogen risk prevention and control system comprising the hydrogen risk prevention and control system according to any one of claims 1 to 8.

10. The hydrogen production plant according to claim 9, characterized in that: The hydrogen production plant further comprises hydrogen production equipment (5), and the hydrogen production equipment (5) is arranged in the inner cavity of the plant body (1).

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