Tank body structure capable of improving dry powder ejection
By designing a rotating nozzle and a tank structure with a large spray hole in the dry powder fire extinguishing device, the problems of unadjustable spray direction and high dry powder residual rate are solved, and flexible spraying and efficient fire extinguishing are achieved.
Patent Information
- Application Number
- CN202422547624.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The spraying direction of traditional dry powder fire extinguishing devices cannot be adjusted, and it is impossible to open all the small holes. After the spraying is completed, the residual rate of dry powder is high.
A tank structure was designed, which includes a rotating nozzle and a nozzle diaphragm. The combustion of the propellant is initiated by a thermal wire to generate high pressure. The rotating nozzle can adjust the spray direction 360° and reduce the spray residual rate through a larger nozzle design.
It realizes flexible adjustment of the spraying direction and a lower dry powder residual rate, thereby improving the fire extinguishing efficiency.
Smart Images
Figure CN223336680U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire extinguishing equipment, in particular to a tank structure that improves dry powder spraying. Background Art
[0002] In the fire protection industry, small non-storage pressurized dry powder fire extinguishing devices are widely used, mostly for fire extinguishing in vehicle engine compartments, electrical compartments and other parts. The main components of this type of dry powder fire extinguishing device include a medicine bin seal, a gas-generating medicine block, a orifice plate, a powder tank and dry powder. Three to five 5mm small holes are provided on the tank body, and rubber plugs are provided on the small holes. When the fire extinguishing device is started, the working principle is as follows: when the fire extinguishing device is started, the gas-generating medicine block burns to produce a large amount of gas, and high pressure is generated in the tank body in a short time. At this time, the rubber plug provided on the small hole falls off under pressure, and the dry powder is sprayed out from the small hole to extinguish the fire.
[0003] When this traditional fire extinguishing device is spraying, the spraying direction cannot be adjusted, and not all small holes can be fully opened. After the spraying is completed, the dry powder residual rate is high. Therefore, we proposed a tank structure that improves the dry powder spraying to solve the above problems. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides a tank structure that improves the dry powder spraying, solving the problems of traditional fire extinguishing devices that the spraying direction cannot be adjusted and all small holes cannot be fully opened, resulting in a high dry powder residual rate after the spraying is completed.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tank structure for improving dry powder spraying, comprising a tank body, a medicine bin cover installed at one end of the tank body, a through hole opened in the middle of one end of the medicine bin cover, a three-way connector inserted into the inner cavity of the through hole, a spray hole opened at the other end of the tank body, a compression nut installed in the inner cavity of the spray hole, a nozzle diaphragm provided at one end of the tank body and located outside the compression nut, and a rotating spray head rotatably installed at one end of the tank body and located outside the nozzle diaphragm;
[0006] Medicine blocks are arranged on both sides of the inner cavity of the medicine storage head, a heat-sensitive wire is arranged in the inner cavity of the medicine storage head, and one end of the heat-sensitive wire extends to the inner cavity of the three-way head, and the inner cavity of the tank body is filled with dry powder.
[0007] Preferably, the rotary spray head includes a nozzle cover, the nozzle cover is screwed to the tank body through a thread, and a nozzle is provided on one side of the outer wall of the nozzle cover near the top;
[0008] A stepped screw hole is provided on the outer wall of the spout cover and located on one side of the spout. A top screw is rotatably connected to the inner cavity of the stepped screw hole, and one end of the top screw is against the outer wall of one end of the tank body.
[0009] Preferably, the spout is in the shape of a waist groove, smaller inside and larger outside, and biased toward the tank body.
[0010] Preferably, it further includes a orifice plate, which is arranged in the inner cavity of the tank body and is located at one end of the medicine chamber head.
[0011] Preferably, a glue plug is further included, wherein the glue plug is arranged in the inner cavity of the through hole, and the thermal line passes through the glue plug.
[0012] Preferably, it further comprises a mounting plate, which is arranged on one side of the middle portion of the outer wall of the tank.
[0013] Preferably, the ratio of the inner diameter of the spray hole provided on the tank body to the inner diameter of the tank body is greater than or equal to 0.4.
[0014] The utility model provides a tank structure that improves dry powder spraying. Compared with the existing technology, it has the following advantages:
[0015] The tank structure improves the spraying of dry powder. By activating the thermal line, the powder block can be burned, thereby generating a large amount of gas, and thus generating high pressure in the tank in a short time. At this time, the nozzle diaphragm, which is the weakest point of the entire cavity, explodes and cracks, and the dry powder passes through the crack and is sprayed out through the rotating nozzle to extinguish the fire. Since the rotating nozzle is screwed to the tank through a thread, the spray direction can be adjusted 360 degrees, and it is fixed after the adjustment is completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a side structural diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the main structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the rotary nozzle of the utility model.
[0021] In the figure: 1-tank body; 2-medicine chamber head; 3-tee head; 4-tightening nut; 5-nozzle diaphragm; 6-rotating nozzle; 61-nozzle cover; 62-nozzle; 63-stepped screw hole; 64-top screw; 7-medicine block; 8-thermal sensitive wire; 9-dry powder; 10-orifice plate; 11-glue plug; 12-mounting plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] See also Figure 1-4 The utility model provides a technical solution: a tank structure for improving the spraying of dry powder, comprising a tank body 1, a medicine bin head 2 is installed at one end of the tank body 1, a through hole is opened in the middle of one end of the medicine bin head 2, a tee head 3 is inserted in the inner cavity of the through hole, a spray hole is opened at the other end of the tank body 1, and a compression nut 4 is installed in the inner cavity of the spray hole, a nozzle diaphragm 5 is arranged at one end of the tank body 1 and located outside the compression nut 4, and a rotating spray head 6 is rotatably installed at one end of the tank body 1 and located outside the nozzle diaphragm 5; medicine blocks 7 are arranged on both sides of the inner cavity of the medicine bin head 2, a thermal wire 8 is arranged in the inner cavity of the medicine bin head 2, and one end of the thermal wire 8 extends to the inner cavity of the tee head 3, and the inner cavity of the tank body 1 is filled with dry powder 9;
[0024] By activating the thermal wire 8, the medicine block 7 can be burned, thereby generating a large amount of gas, which can generate high pressure in the tank body 1 in a short time. At this time, the nozzle diaphragm 5, which is the weakest point of the entire cavity, explodes and cracks, and the dry powder 9 passes through the crack and is sprayed out through the rotating nozzle 6 to extinguish the fire. Since the rotating nozzle 6 is screwed to the tank body 1 through a thread, the spray direction can be adjusted 360°, and it is fixed after the adjustment is completed.
[0025] See Figure 4 、 Figure 5 The rotating nozzle 6 includes a nozzle cover 61, which is screwed to the tank body 1 through a threaded connection. A nozzle 62 is provided on one side of the outer wall of the nozzle cover 61 and near the top; a stepped screw hole 63 is provided on the outer wall of the nozzle cover 61 and located on one side of the nozzle 62. A top screw 64 is rotatably connected to the inner cavity of the stepped screw hole 63. One end of the top screw 64 is against the outer wall of one end of the tank body 1. The nozzle 62 is a waist groove type, with a small inside and a large outside, and is biased toward the tank body 1.
[0026] By rotating the nozzle cover 61 in the nozzle head 6, it can be rotatably installed at one end of the tank body 1, and space can be provided for the waist-shaped nozzle 62. Since the nozzle 62 is small inside and large outside, and is biased toward the tank body 1, when the dry powder 9 is sprayed, it is fan-shaped and offset toward the tank body 1. The center of the spraying range is closer to the center of the fire extinguishing device, which is more conducive to the installation and arrangement of the fire extinguishing device. Since a stepped screw hole 63 is provided on the outer wall of the nozzle cover 61 and on one side of the nozzle 62, and a top screw 64 is rotatably connected to the inner cavity of the stepped screw hole 63, the nozzle cover 61 can be rotatable and has a 360° direction adjustment function. By rotating the top screw 64 in the stepped screw hole 63, the nozzle cover 61 can be fixed after the adjustment is completed.
[0027] See Figure 4 , and also includes a orifice plate 10, which is arranged in the inner cavity of the tank body 1, and the orifice plate 10 is located at one end of the medicine chamber head 2, which does not affect the flow of gas to the dry powder 9 and can prevent the dry powder 9 from penetrating into the medicine block 7.
[0028] See Figure 4 , and also includes a glue plug 11, which is arranged in the inner cavity of the through hole, and the thermal wire 8 passes through the glue plug 11, which can seal the thermal wire 8 passing through the through hole and allow the gas to flow to the dry powder 9.
[0029] See Figure 1-Figure 3 , also includes a mounting plate 12, which is arranged on one side of the middle part of the outer wall of the tank body 1, which can be convenient for the staff to install and fix it.
[0030] See Figure 4 The ratio of the inner diameter of the spray hole provided on the tank body 1 to the inner diameter of the tank body 1 is greater than or equal to 0.4. A larger ratio of the spray hole to the diameter of the tank body 1 reduces the residual rate of the injection.
[0031] During operation, by activating the thermal wire 8, the medicine block 7 can be burned, thereby generating a large amount of gas, and then generating high pressure in the tank body 1 in a short time. At this time, the nozzle diaphragm 5, as the weakest point of the entire cavity, explodes and cracks, and the dry powder 9 passes through the crack and is sprayed out through the rotating nozzle 6 to extinguish the fire. Since the rotating nozzle 6 is screwed to the tank body 1 through threads, the spray direction can be adjusted 360°, and it is fixed after the adjustment is completed.
[0032] By rotating the nozzle cover 61 in the nozzle head 6, it can be rotatably installed at one end of the tank body 1, and space can be provided for the waist-shaped nozzle 62. Since the nozzle 62 is small inside and large outside, and is biased toward the tank body 1, when the dry powder 9 is sprayed, it is fan-shaped and offset toward the tank body 1. The center of the spraying range is closer to the center of the fire extinguishing device, which is more conducive to the installation and arrangement of the fire extinguishing device. Since a stepped screw hole 63 is provided on the outer wall of the nozzle cover 61 and on one side of the nozzle 62, and a top screw 64 is rotatably connected to the inner cavity of the stepped screw hole 63, the nozzle cover 61 can be rotatable and has a 360° direction adjustment function. By rotating the top screw 64 in the stepped screw hole 63, the nozzle cover 61 can be fixed after the adjustment is completed.
[0033] The orifice plate 10 does not affect the flow of gas to the dry powder 9, and can prevent the dry powder 9 from penetrating into the medicine block 7. The rubber plug 11 can seal the thermal wire 8 running through the through hole, and allow the gas to flow to the dry powder 9. The mounting plate 12 can facilitate the staff to install and fix it. Since the ratio of the inner diameter of the spray hole provided on the tank body 1 to the inner diameter of the tank body 1 is greater than or equal to 0.4, the larger ratio of the spray hole to the diameter of the tank body 1 reduces the residual rate of the injection.
[0034] In summary, the device has a larger opening size and a larger ratio of the nozzle hole to the diameter of the tank body 1, which reduces the residual rate of the spray, and is provided with a rotatable nozzle cover 61 with a 360° direction adjustment function. A waist-shaped nozzle 62 is provided on the nozzle cover 61, which is small inside and large outside and offset toward the tank body 1. Therefore, when the dry powder is sprayed, it is fan-shaped and offset toward the tank body 1. The center of the spray range is closer to the center of the fire extinguishing device, which is more conducive to the installation and arrangement of the fire extinguishing device.
[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
Claims
1. A tank structure for improving dry powder spraying, comprising a tank (1), characterized in that: A medicine bin seal (2) is installed at one end of the tank body (1), a through hole is provided in the middle of one end of the medicine bin seal (2), a three-way head (3) is inserted into the inner cavity of the through hole, a spray hole is provided at the other end of the tank body (1), a clamping nut (4) is installed in the inner cavity of the spray hole, a nozzle diaphragm (5) is provided at one end of the tank body (1) and located outside the clamping nut (4), and a rotating nozzle (6) is rotatably installed at one end of the tank body (1) and located outside the nozzle diaphragm (5); medicine blocks (7) are provided on both sides of the inner cavity of the medicine bin seal (2), a heat-sensitive wire (8) is provided in the inner cavity of the medicine bin seal (2), one end of the heat-sensitive wire (8) extends to the inner cavity of the three-way head (3), and the inner cavity of the tank body (1) is filled with dry powder (9).
2. The tank structure for improving dry powder spraying according to claim 1, characterized in that: The rotating spray head (6) includes a nozzle cover (61), the nozzle cover (61) is screwed to the tank body (1) via a thread, and a nozzle (62) is provided on one side of the outer wall of the nozzle cover (61) near the top. A stepped screw hole (63) is provided on the outer wall of the nozzle cover (61) and on one side of the nozzle (62). A top screw (64) is rotatably connected to the inner cavity of the stepped screw hole (63). One end of the top screw (64) abuts against the outer wall of one end of the tank body (1).
3. The tank structure for improving dry powder spraying according to claim 2, characterized in that: The spout (62) is in the shape of a waist groove, smaller inside and larger outside, and is biased toward the tank body (1).
4. The tank structure for improving dry powder spraying according to claim 1, characterized in that: It also includes a hole plate (10), which is arranged in the inner cavity of the tank body (1), and the hole plate (10) is located at one end of the medicine chamber head (2).
5. The tank structure for improving dry powder spraying according to claim 1, characterized in that: It also includes a glue plug (11), which is arranged in the inner cavity of the through hole, and the thermal wire (8) passes through the glue plug (11).
6. The tank structure for improving dry powder spraying according to claim 1, characterized in that: It also includes a mounting plate (12), which is arranged on one side of the middle portion of the outer wall of the tank body (1).
7. The tank structure for improving dry powder spraying according to claim 1, characterized in that: The ratio of the inner diameter of the spray hole provided on the tank body (1) to the inner diameter of the tank body (1) is greater than or equal to 0.4.