A hot start device for fire extinguishing device
By setting a thermal insulation sheet and a heat-producing medicine column in the outer shell of the fire extinguishing device, the heat-sensitive wire ignites the heat-producing medicine column and the heat-conducting heat through the thermal insulation sheet igniting the heat-sensitive medicine cake, the problem of air leakage in the heat-sensitive wire lead-out hole is solved, ensuring the eruption pressure and fire-extinguishing effect of the fire extinguisher.
Patent Information
- Application Number
- CN202421290819.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The heat-sensitive wire lead-out fire extinguisher needs to be equipped with lead-out holes, which causes the lead-out holes to be in a non-sealed state, which is prone to air leakage, which reduces the eruption pressure of the fire extinguisher and affects the fire extinguishing effect.
A heat-starting device for fire extinguishing device is designed. By setting a thermal insulation sheet in the shell, the shell is divided into a first chamber and a second chamber. The heat-sensitive wire passes through the lead-out hole and is connected to the heat-producing drug column in the first chamber. The heat-sensitive wire burns and ignites the heat-producing drug column. The heat-conducted by the thermal insulation sheet increases to the ignition point of the thermal-sensitive drug cake, ignites the heat-sensitive drug cake and starts the fire-extinguishing device.
The heat transfer of the thermal insulation sheet ignits the heat-sensitive medicine cake, ensuring that the gas-producing agent in the fire extinguishing device is not easy to leak out, ensuring the eruption pressure of the fire extinguisher, and ensuring the fire extinguishing effect.
Smart Images
Figure CN222693930U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire extinguishing devices, in particular to a hot starting device for fire extinguishing devices. Background Art
[0002] The working principle of non-storage pressure fire extinguisher is to generate a large amount of gas through the internal gas generating agent to spray out the fire extinguishing material. The gas generating agent is generally triggered by a thermal start device.
[0003] The hot start device generally uses a thermistor wire to ignite and start. The thermistor wire is led out from the inside of the fire extinguisher. After the thermistor wire is started, it burns into the fire extinguisher to trigger the gas generating agent.
[0004] Since a lead-out hole is required for the thermal wire to be led out of the fire extinguisher, the lead-out hole is in a non-sealed state after the thermal wire burns into the fire extinguisher. Air leakage is likely to occur at the lead-out hole, which reduces the eruption pressure of the fire extinguisher and affects the fire extinguishing effect. Utility Model Content
[0005] Based on the above description, the utility model provides a hot start device for a fire extinguishing device to solve the problem that a lead-out hole is required to lead the thermal sensitive wire out of the fire extinguisher. After the thermal sensitive wire burns into the fire extinguisher, the lead-out hole is in a non-sealed state, and air leakage is likely to occur at the lead-out hole, which reduces the eruption pressure of the fire extinguisher and affects the fire extinguishing effect.
[0006] The technical solution of the utility model to solve the above technical problems is as follows:
[0007] The present application provides a hot start device for a fire extinguishing device, and the technical solution adopted is as follows:
[0008] A fire extinguishing device thermal start device, comprising:
[0009] A shell, wherein a heat-conducting spacer is provided inside the shell to divide the shell into a first chamber and a second chamber, and the shell is provided with an outlet hole connecting the first chamber with the outside and a flame-conducting hole connecting the second chamber with the outside, and the flame-conducting hole is used to connect to the gas generating agent container;
[0010] A thermal line, one end of which passes through the lead-out hole and extends into the first chamber, and the other end of which is used to extend to the monitoring area;
[0011] a heat-generating charge disposed in the first chamber and in contact with the heat-sensitive wire;
[0012] The heat-sensitive medicine cake is arranged in the second chamber and contacts the heat-conducting spacer.
[0013] Preferably, the heat-sensitive medicine cake includes a contact surface that fits the thermally conductive spacer.
[0014] Preferably, a medicine tube is provided in the first chamber, the heat-generating medicine column is filled in the medicine tube, one end of the medicine tube is closed and the other end is open, and the open end of the medicine tube faces the heat-conducting spacer.
[0015] Preferably, a wire hole for the thermosensitive wire to pass through is opened on the side wall of the medicine tube, and the thermosensitive wire passes through the wire hole to contact the heat-generating medicine column.
[0016] Preferably, a containing tube with openings at both ends is provided in the outer shell, the containing tube is arranged around the fire-conducting hole, one end of the containing tube is in contact with the inner wall of the outer shell and forms a seal with the inner wall of the outer shell, the heat-conducting spacer is provided at the other end of the containing tube to cover the opening at the end and form a seal with the containing tube, and the second chamber is formed in the containing tube.
[0017] Preferably, a limiting plate is provided in the shell, the limiting plate is connected to the shell and presses the heat-conducting spacer onto the end surface of the containing tube, and a heat-conducting hole is opened on the limiting plate.
[0018] Preferably, the open end of the medicine tube is connected to the limiting plate, and the heat conducting hole is connected to the medicine tube.
[0019] Preferably, the limiting plate is connected to a connecting pipe surrounding the outside of the accommodating tube, and the connecting pipe is threadedly connected to the outer shell.
[0020] Preferably, the thermosensitive drug cake is formed by filling the second chamber with liquid thermosensitive drug and then solidifying.
[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0022] 1. The present application divides the shell into a first chamber and a second chamber by arranging a heat-conducting spacer in the shell. The thermistor wire passes through the lead-out hole and is connected to the heat-generating powder column in the first chamber. When the thermistor wire extends to one end of the monitoring area and is started, the thermistor wire burns into the first chamber and ignites the heat-generating powder column. When the heat-generating powder column is ignited and generates heat, the temperature of the heat-conducting spacer rises. The heat-sensitive medicine cake in the second chamber contacts the heat-conducting spacer. When the temperature of the heat-conducting spacer rises to the ignition point of the heat-sensitive medicine cake, the heat-sensitive medicine cake ignites, and then the heat-sensitive medicine cake is ignited through the heat-sensitive The medicine cake ignites the gas generating agent in the gas generating agent container connected to the fire guide hole, and the fire extinguishing device is started to extinguish the fire; the heat generating column generates heat to ensure that the temperature of the heat conductive spacer can be raised to above the ignition point of the heat sensitive medicine cake; the application uses the heat transfer of the heat conductive spacer to ignite the heat sensitive medicine cake and then start the fire extinguishing device. Since the first chamber and the second chamber are separated by the heat conductive spacer and are not connected to each other, the gas generated by the gas generating agent of the fire extinguishing device is not easy to leak out from the outlet hole through the first chamber, thereby ensuring the eruption pressure of the fire extinguisher and ensuring the fire extinguishing effect;
[0023] 2. This application increases the contact area between the heat-sensitive medicine cake and the heat-conducting spacer by setting a contact surface on the heat-sensitive medicine cake to fit with the heat-conducting spacer, ensuring that the heat-conducting spacer can smoothly ignite the heat-sensitive medicine cake through heat transfer, and cooperates with the setting of the heat-generating medicine column to ensure that the heat-sensitive medicine cake can be smoothly ignited when the thermistor line is started;
[0024] 3. The present application sets a containing tube, a limiting plate and a connecting tube. The connecting tube is connected and fixed to the outer shell, and the heat-conducting spacer is pressed against the end face of the containing tube by the limiting plate, so that the two ends of the containing tube are respectively sealed with the outer shell and the heat-conducting spacer, thereby realizing the function of separating the outer shell into a first chamber and a second chamber by the heat-conducting spacer, and a heat-conducting hole is opened on the limiting plate and connected to the open end of the agent tube, so as to ensure that the heat generated when the heat-generating medicine column in the agent tube is ignited is transmitted to the heat-conducting spacer through the heat-conducting hole, so as to ensure that the temperature of the heat-conducting spacer can be increased to ignite the thermic sensitive medicine cake, and ensure that the hot start device can smoothly start the fire extinguishing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A schematic diagram of the structure of a hot start device for a fire extinguishing device provided in an embodiment of the utility model;
[0026] Figure 2 A schematic diagram of the overall structure of a hot start device for a fire extinguishing device provided in an embodiment of the utility model.
[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0028] 1. Shell; 11. First chamber; 12. Second chamber; 13. Lead-out hole; 14. Fire-conducting hole; 15. Flame-extinguishing chamber; 16. Connector; 2. Heat-conducting spacer; 3. Thermosensitive wire; 4. Heat-generating medicine column; 5. Thermosensitive medicine cake; 6. Medicine tube; 7. Containing tube; 8. Limiting plate; 81. Heat-conducting hole; 9. Connecting tube. DETAILED DESCRIPTION
[0029] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0031] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.
[0032] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.
[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0034] Reference Figure 1-2 As shown, an embodiment of the present application provides a hot start device for a fire extinguishing device, which includes a shell 1, a thermistor 3, a heat-generating charge 4 and a heat-sensitive drug cake 5. A heat-conducting spacer 2 is provided in the shell 1 to divide the shell 1 into a first chamber 11 and a second chamber 12. The shell 1 is provided with an outlet hole 13 connecting the first chamber 11 and the outside and a fire-conducting hole 14 connecting the second chamber 12 and the outside. The fire-conducting hole 14 is used to connect to a gas generating agent container; one end of the thermistor 3 passes through the outlet hole 13 and extends into the first chamber 11, and the other end is used to extend to the monitoring area. The heat-generating charge 4 is arranged in the first chamber 11 and contacts the thermistor 3, and the heat-sensitive drug cake 5 is arranged in the second chamber 12 and contacts the heat-conducting spacer 2.
[0035] Through the above arrangement, when a fire occurs in the monitoring area and the thermistor line 3 is activated, the thermistor line 3 burns into the first chamber 11 and ignites the heat-generating powder column 4. When the heat-generating powder column 4 is ignited and generates heat, the temperature of the heat-conducting spacer 2 rises. When the temperature of the heat-conducting spacer 2 rises to the ignition point of the heat-sensitive medicine cake 5, the heat-sensitive medicine cake 5 is ignited, and then the gas-generating agent in the gas-generating agent container connected to the fire-conducting hole 14 is ignited through the heat-sensitive medicine cake 5, and the fire-extinguishing device is activated to extinguish the fire. The heat-generating powder column 4 burns and generates heat to ensure that the temperature of the heat-conducting spacer 2 can rise to above the ignition point of the heat-sensitive medicine cake 5. The heat transfer of the heat-conducting spacer 2 is used to ignite the heat-sensitive medicine cake 5 and then the fire-extinguishing device is activated. Since the first chamber 11 and the second chamber 12 are separated and not connected to each other by the heat-conducting spacer 2, the gas generated by the gas-generating agent of the fire-extinguishing device is not easy to leak out from the outlet hole 13 through the first chamber 11, thereby ensuring the eruption pressure of the fire extinguisher and ensuring the fire extinguishing effect.
[0036] Reference Figure 1-2 As shown, further, in order to improve the heat conduction effect between the thermally conductive spacer 2 and the thermosensitive medicine cake 5, the thermosensitive medicine cake 5 is configured to include a contact surface that fits the thermally conductive spacer 2, so as to increase the contact area between the thermosensitive medicine cake 5 and the thermally conductive spacer 2 through the contact surface, thereby ensuring that the thermosensitive medicine cake 5 can be ignited after the thermally conductive spacer 2 is heated by the heat-generating medicine column 4.
[0037] Reference Figure 1-2 As shown, further, in order to conduct the heat to the heat-conducting spacer 2 when the heat-generating charge 4 is ignited, a medicine tube 6 is provided in the first chamber 11, and the heat-generating charge 4 is filled in the medicine tube 6. One end of the medicine tube 6 is closed and the other end is open, and the open end faces the heat-conducting spacer 2. In this way, when the heat-generating charge 4 is ignited, the heat is conducted to the heat-conducting spacer 2 after being conducted through the open end of the medicine tube 6, which can ensure that the heat-conducting spacer 2 is heated when the thermosensitive wire 3 is started, thereby igniting the thermosensitive medicine cake 5, and ensuring that the heat start device can start the fire extinguishing device in case of fire. Correspondingly, in order to achieve the purpose of contact between the thermosensitive wire 3 and the heat-generating charge 4, a wire hole for the thermosensitive wire 3 to pass through is opened on the side wall of the medicine tube 6, and the thermosensitive wire 3 passes through the wire hole and contacts the heat-generating charge 4. In this embodiment, wire holes are opened on both opposite side walls of the medicine tube 6, and one end of the thermosensitive wire 3 passes through the medicine tube 6 from one wire hole and passes out from the other wire hole, so that the thermosensitive wire 3 can smoothly ignite the heat-generating charge 4.
[0038] Reference Figure 1-2 As shown, further, a housing tube 7 with openings at both ends is provided in the housing 1, the housing tube 7 is arranged around the fire-conducting hole 14, one end of the housing tube 7 is in contact with the inner wall of the housing 1 and forms a seal with the inner wall of the housing 1, and the heat-conducting spacer 2 is provided at the other end of the housing tube 7 to cover the opening of the end and form a seal with the housing tube 7, and a second chamber 12 is formed in the housing tube 7. Correspondingly, the thermosensitive medicine cake 5 is filled in the housing tube 7. In this embodiment, the thermosensitive medicine cake 5 is formed by liquid thermosensitive medicine filled in the housing tube 7 and solidified, so that the contact area between the thermosensitive medicine cake 5 and the heat-conducting spacer 2 can be further increased to ensure the heat conduction effect.
[0039] Reference Figure 1-2 As shown, further, a limiting plate 8 is provided in the housing 1, the limiting plate 8 is connected to the housing 1 and presses the heat conductive spacer 2 against the end face of the receiving tube 7, a heat conductive hole 81 is provided on the limiting plate 8, and the open end of the medicine tube 6 is connected to the limiting plate 8, and the heat conductive hole 81 is connected to the medicine tube 6. The limiting plate 8 is connected to the housing 1 to press the heat conductive spacer 2 against the end face of the receiving tube 7, so that a seal is formed between the receiving tube 7 and the heat conductive spacer 2, and at the same time, the receiving tube 7 is pressed against the inner wall of the housing 1 to form a seal between the receiving tube 7 and the inner wall of the housing 1, thereby achieving the purpose of fixing the heat conductive spacer 2 in the housing 1 and separating the housing 1 into the first chamber 11 and the second chamber 12.
[0040] Reference Figure 1-2 As shown, specifically, the outer shell 1 includes a flame extinguishing chamber 15 and a connector 16. The flame extinguishing chamber 15 is cylindrical, one end of the flame extinguishing chamber 15 is open and the other end is closed and a lead-out hole 13 is provided. The connector 16 is provided at the open end of the flame extinguishing chamber 15 and is threadedly connected to the flame extinguishing chamber 15. The connector 16 closes the open end of the flame extinguishing chamber 15 and forms a seal with the flame extinguishing chamber 15. The fire guide hole 14 is opened on the connector 16 and is coaxial with the flame extinguishing chamber 15; a receiving groove connected to the fire guide hole 14 is opened on one side of the connector 16 close to the flame extinguishing chamber 15, and the cross-section of the receiving groove is circular and coaxial with the fire guide hole 14. Correspondingly, the receiving tube 7 is provided in the receiving groove and is arranged around the fire guide hole 14. The receiving tube 7 is coaxial with the fire guide hole 14 and one end face fits the bottom wall of the receiving groove to form a seal.
[0041] Reference Figure 1-2 As shown, the limiting plate 8 is connected with a connecting tube 9 surrounding the outside of the receiving tube 7, and the connecting tube 9 is threadedly connected to the housing 1; specifically, the connecting tube 9 and the receiving tube 7 are coaxial, and mutually adapted threads are provided on the outer wall of the connecting tube 9 and the side wall of the receiving groove, so that the connecting tube 9 and the connecting head 16 are threadedly assembled, and the inner diameter of the connecting tube 9 is set to be consistent with the outer diameter of the receiving tube 7 to limit the radial movement of the receiving tube 7. Correspondingly, the heat-conducting spacer 2 is arranged between the limiting plate 8 and the receiving tube 7. When the connecting tube 9 and the connecting head 16 are threadedly connected, the heat-conducting spacer 2 is pressed against the end face of the receiving tube 7 through the limiting plate 8. The hot start device is assembled from a plurality of parts, and the threaded connection method makes the production and assembly of the hot start device more convenient, low-cost and high-efficiency.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fire extinguishing device thermal start device, characterized in that: include: A shell (1) is provided with a heat-conducting spacer (2) therein to divide the shell (1) into a first chamber (11) and a second chamber (12); the shell (1) is provided with an outlet hole (13) connecting the first chamber (11) with the outside and a flame-conducting hole (14) connecting the second chamber (12) with the outside; the flame-conducting hole (14) is used to connect to a gas generating agent container; A thermal sensitive wire (3), one end of which passes through the lead-out hole (13) and extends into the first chamber (11), and the other end of which is used to extend to the monitoring area; a heat-generating charge (4), which is disposed in the first chamber (11) and in contact with the heat-sensitive wire (3); A heat-sensitive medicine cake (5) is arranged in the second chamber (12) and is in contact with the heat-conducting spacer (2).
2. The hot start device for fire extinguishing device according to claim 1, characterized in that; The heat-sensitive medicine cake (5) comprises a contact surface that is in contact with the heat-conducting spacer (2).
3. The fire extinguishing device thermal start device according to claim 1, characterized in that: A medicine tube (6) is provided in the first chamber (11), the heat-generating medicine column (4) is filled in the medicine tube (6), one end of the medicine tube (6) is closed and the other end is open, and the open end of the medicine tube (6) faces the heat-conducting spacer (2).
4. The fire extinguishing device thermal start device according to claim 3, characterized in that: A wire hole for the thermosensitive wire (3) to pass through is provided on the side wall of the medicine tube (6); the thermosensitive wire (3) passes through the wire hole and contacts the heat-generating medicine column (4).
5. The hot start device for fire extinguishing device according to claim 3, characterized in that: A receiving tube (7) with openings at both ends is provided in the outer shell (1), the receiving tube (7) is arranged around the fire-conducting hole (14), one end of the receiving tube (7) is in contact with the inner wall of the outer shell (1) and forms a seal with the inner wall of the outer shell (1), the heat-conducting spacer (2) is provided at the other end of the receiving tube (7) to cover the opening of the end and form a seal with the receiving tube (7), and the second chamber (12) is formed in the receiving tube (7).
6. The fire extinguishing device thermal start device according to claim 5, characterized in that: A limiting plate (8) is provided inside the outer shell (1), the limiting plate (8) is connected to the outer shell (1) and presses the heat-conducting spacer (2) onto the end surface of the containing tube (7), and a heat-conducting hole (81) is provided on the limiting plate (8).
7. The hot start device for fire extinguishing device according to claim 6, characterized in that: The open end of the medicine tube (6) is connected to the limiting plate (8), and the heat conducting hole (81) is connected to the medicine tube (6).
8. The hot start device for fire extinguishing device according to claim 6, characterized in that: The limiting plate (8) is connected to a connecting pipe (9) surrounding the outside of the containing pipe (7), and the connecting pipe (9) is threadedly connected to the outer shell (1).
9. The fire extinguishing device thermal start device according to claim 1, characterized in that: The thermosensitive drug cake (5) is formed by filling the second chamber (12) with liquid thermosensitive drug and then solidifying.