A hydrogen nozzle

Abstract

The present invention relates to the technical field of hydrogen nozzles, and in particular to a hydrogen nozzle, the technical solution of which includes a nozzle body, a throat, a compression spring screw and a plug, the nozzle body being a hollow cylindrical structure, and an air inlet being provided at the top of the nozzle body, a tip seat being fixedly mounted at the bottom of the nozzle body, a C-shaped hole being provided on one side of the interior of the nozzle body, and a flow channel being provided at a position away from the hole in the interior of the nozzle body. The present invention installs a slider inside the nozzle body, and adjusts the position of the slider by the combined force of the elastic force applied to the slider by a spring and the pressure applied by hydrogen entering the nozzle body, thereby causing the slider to block the flow channel to varying degrees, thereby adjusting the flow velocity of hydrogen inside the nozzle body, thereby achieving the purpose of adjusting the internal pressure of the hydrogen nozzle, and enabling hydrogen to maintain a relatively stable pressure range during transportation, thereby avoiding damage to the equipment caused by large pressure fluctuations.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen nozzles, in particular to a hydrogen nozzle. Background Art

[0002] In hydrogen storage and transportation equipment, nozzles are a relatively common fluid injection device used to spray liquid fluid in a jet-like manner in a specified direction and range, thereby facilitating the reaction of hydrogen or igniting hydrogen for combustion. However, traditional nozzles used for hydrogen transmission have many inconveniences in use. Therefore, in order to ensure the safety of hydrogen storage and transportation equipment, we propose a hydrogen nozzle.

[0003] The prior art also has the following defects during use:

[0004] 1. In terms of pressure regulation, conventional hydrogen nozzles in existing technologies have poor pressure regulation accuracy, making it difficult to precisely control them according to actual needs. This often leads to large pressure fluctuations, affecting the stability of hydrogen storage and transportation, and may even cause equipment failure.

[0005] 2. During use, hydrogen nozzles in the prior art are prone to static electricity due to friction, etc., as hydrogen is flammable and explosive. When static electricity accumulates to a certain level, static electricity breakdown will occur, causing serious safety accidents.

[0006] In view of this, we propose a hydrogen nozzle to solve the existing problems. Summary of the Invention

[0007] The object of the present invention is to provide a hydrogen nozzle to solve the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen nozzle, comprising a nozzle body, a throat, a compression spring screw, and a plug; the nozzle body is a hollow cylindrical structure, and an air inlet is provided at the top of the nozzle body; a tip seat is fixedly mounted at the bottom of the nozzle body; a C-shaped hole is provided on one side of the interior of the nozzle body; a flow channel is provided at a position inside the nozzle body away from the hole, and the flow channel extends to the outside of the nozzle body;

[0009] A throat is fixedly mounted on one side of the nozzle body, and the throat is connected to the flow channel. A check block is movably mounted on one side of the throat close to the nozzle body, and a check spring is mounted on the outside of the check block. An injection slot is provided inside the throat;

[0010] A compression spring screw is fixedly installed inside the nozzle body, a spring is fixedly installed at the bottom of the compression spring screw, a slider is fixedly installed at the bottom of the spring, a vent hole is opened inside the compression spring screw, and the installation position of the compression spring screw is higher than the channel;

[0011] A plug is fixedly installed at the bottom of the nozzle body;

[0012] Both ends of the channel are connected to the interior of the nozzle body, and the cross-sectional diameter of the channel is smaller than the inner diameter of the nozzle body. The channel can guide part of the hydrogen flow to between the plug and the slider;

[0013] A traction belt is fixedly installed on the top of the plug, and the traction belt is electrically connected to the slider, and a discharge seat is fixedly installed on the bottom of the plug.

[0014] Preferably, the slider is a solid cylindrical structure, and a limiting disk having a diameter larger than a diameter of the internal pipeline of the nozzle body is fixedly mounted on the bottom of the slider.

[0015] Preferably, the tip seat is a hollow cone structure with the tip facing downward, and a plurality of ventilation slots are provided inside the tip seat.

[0016] Preferably, two fixing bolts are installed inside the throat pipe, and the fixing bolts extend into the interior of the nozzle body.

[0017] Preferably, the injection slot is a trumpet-shaped channel structure, and the side with a larger diameter of the injection slot is set as a nozzle.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention installs a slider inside the nozzle body. The position of the slider is adjusted by the combined force of the elastic force applied to the slider by a spring and the pressure applied by the hydrogen entering the nozzle body. The slider then blocks the flow channel to varying degrees to adjust the flow rate of the hydrogen inside the nozzle body, thereby achieving the purpose of regulating the internal pressure of the hydrogen nozzle. This can maintain a relatively stable pressure range for hydrogen during transportation, avoiding damage to the equipment caused by large pressure fluctuations.

[0020] 2. The present invention installs a tip seat at the bottom of the nozzle body. Based on the tip discharge principle, the tip seat can continuously release the static electricity inside the nozzle body, thereby preventing the nozzle body and its internal components from generating a large amount of static electricity during long-term contact and friction with hydrogen. After the static electricity breaks down, sparks are formed, causing hydrogen combustion, thereby improving the safety of the hydrogen nozzle during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the present invention;

[0023] Figure 3It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the front external structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the second front cross-sectional structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the three structures of the front cross-section state of the present invention.

[0028] In the figure: 1. Nozzle body; 101. Air inlet; 102. Tip seat; 103. Orifice; 104. Flow channel; 2. Throat; 201. Check block; 202. Check spring; 203. Spray slot; 204. Nozzle; 3. Compression spring screw; 301. Spring; 302. Slider; 4. Plug; 401. Traction belt; 402. Discharge seat. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 - Figure 7As shown, a hydrogen nozzle proposed in the present invention includes a nozzle body 1, a throat 2, a compression spring screw 3 and a plug 4. The nozzle body 1 is a hollow cylindrical structure, and an air inlet 101 is provided on the top of the nozzle body 1. A tip seat 102 is fixedly installed on the bottom of the nozzle body 1. A channel 103 is opened on one side of the interior of the nozzle body 1, and the channel 103 is C-shaped. A flow channel 104 is opened at a position away from the channel 103 inside the nozzle body 1, and the flow channel 104 extends to the outside of the nozzle body 1. The nozzle body 1 can guide hydrogen so that hydrogen is transmitted between the nozzle body 1 and the throat 2. The air inlet 101 can be connected to an external pipeline to allow hydrogen to enter the interior of the nozzle body 1. The tip seat 102 can be connected to the nozzle body 1. Based on the principle of tip discharge, the static electricity generated by the nozzle body 1 and its surrounding components is continuously released into the air during operation, thereby eliminating the charge accumulated inside the device and avoiding electrostatic breakdown when hydrogen is transmitted within the device, thereby improving the safety of the device during hydrogen transportation. The channel 103 can guide a small amount of hydrogen to flow into the cavity between the slider 302 and the plug 4. When the hydrogen entering the nozzle body 1 produces a pressure change, the combined force of the spring 301 and the hydrogen pressure drives the slider 302 to move within the nozzle body 1, thereby adjusting the opening and closing amplitude of the flow channel 104, allowing the hydrogen to enter the throat 2 and be ejected at a relatively stable pressure, thereby ensuring the stability of hydrogen transmission and injection;

[0031] A throat pipe 2 is fixedly installed on one side of the nozzle body 1, and the throat pipe 2 is connected to the flow channel 104. A check block 201 is movably installed on the side of the throat pipe 2 close to the nozzle body 1, and a check spring 202 is set on the outside of the check block 201. An injection groove 203 is opened inside the throat pipe 2. The throat pipe 2 is installed at a 90-degree angle to the nozzle body 1, and the throat pipe 2 is connected to the flow channel 104, so that hydrogen can enter the throat pipe 2 from the nozzle body 1 and then be injected in a specified direction through the injection groove 203 inside the throat pipe 2. The diameter of one end of the check block 201 is larger than the diameter of the flow channel 104, and the diameter of the other end is smaller than the diameter of the pipe inside the throat pipe 2. Under the elastic force applied by the check spring 202, the nozzle 2 is opened. When the check block 201 is in use, it can come into contact with the side of the throat pipe 2 close to the flow channel 104. When the hydrogen pressure is greater than the elastic force applied to the check block 201 by the check spring 202, the hydrogen can enter the throat pipe 2 and be ejected from the throat pipe 2 through the injection slot 203. If the hydrogen in the injection slot 203 flows back, the pressure applied by the backflowing hydrogen on the check block 201 and the elastic force applied by the check spring 202 can push the check block 201 toward the flow channel 104 and block the flow channel 104, thereby preventing the hydrogen in the throat pipe 2 from flowing back into the nozzle body 1, thus achieving a one-way guide. The injection slot 203 has a trumpet-shaped structure, which can expand the range of hydrogen injection from the throat pipe 2.

[0032] A compression spring screw 3 is fixedly installed inside the nozzle body 1, and a spring 301 is fixedly installed at the bottom of the compression spring screw 3. A slider 302 is fixedly installed at the bottom of the spring 301. A vent is opened inside the compression spring screw 3, and the installation position of the compression spring screw 3 is higher than the channel 103, so as to control the pressure of the hydrogen injection, so that the hydrogen can be ejected from the inside of the device in a relatively stable state. The compression spring screw 3 can fix the spring 301 and guide the hydrogen into the interior of the nozzle body 1. The compression spring screw 3 can fix one end of the spring 301, so that the spring 301 can stably apply elastic force to the slider 302. The slider 302 can move inside the nozzle body 1, thereby adjusting the opening size of the flow channel 104, thereby achieving the purpose of adjusting the hydrogen flow rate;

[0033] A plug 4 is fixedly installed at the bottom of the nozzle body 1. The plug 4 can block the opening at the bottom of the nozzle body 1 and cooperate with the discharge seat 402 to transfer the charge around the plug 4 to the tip of the discharge seat 402, thereby discharging the static electricity into the tip seat 102.

[0034] Both ends of the channel 103 are connected to the interior of the nozzle body 1, and the cross-sectional diameter of the channel 103 is smaller than the inner diameter of the nozzle body 1. The channel 103 can guide part of the hydrogen flow to the space between the plug 4 and the slider 302. When the pressure of the hydrogen entering the nozzle body 1 changes, the pressure value between the plug 4 and the slider 302 changes accordingly. As a result, the slider 302 moves within the nozzle body 1 under the combined force of the spring 301 and the hydrogen pressure, adjusting the opening size of the channel 104 and ensuring the stability of the hydrogen during ejection.

[0035] A traction belt 401 is fixedly installed on the top of the plug 4, and the traction belt 401 is electrically connected to the slider 302. A discharge seat 402 is fixedly installed on the bottom of the plug 4. The traction belt 401 can connect the plug 4 and the slider 302, so that the charge inside the slider 302 can be transferred to the plug 4. The discharge seat 402 at the bottom of the plug 4 is used to release the charge of the slider 302 at a pointed end, thereby eliminating the static electricity on the slider 302, and avoiding the long-term contact and friction between the slider 302 and the nozzle body 1 and hydrogen to generate static electricity and cause hydrogen combustion.

[0036] Furthermore, the slider 302 is a solid cylindrical structure, and a limit plate with a diameter larger than the internal pipe diameter of the nozzle body 1 is fixedly installed at the bottom of the slider 302. The limit plate at the bottom of the slider 302 can prevent the slider 302 from moving excessively, thereby preventing the slider 302 from clogging the channel 103.

[0037] Furthermore, the tip seat 102 is a hollow cone structure with the tip facing downward, and a plurality of ventilation slots are provided inside the tip seat 102. The ventilation slots enable air to circulate inside and outside the tip seat 102, thereby allowing the air to carry the charge out and achieve continuous release of static electricity.

[0038] Furthermore, two fixing bolts are installed inside the throat pipe 2, and the fixing bolts extend into the interior of the nozzle body 1. The fixing bolts can fix the nozzle body 1 and the throat pipe 2, thereby ensuring the connection stability between the nozzle body 1 and the throat pipe 2.

[0039] Furthermore, the injection slot 203 is a trumpet-shaped channel structure, and the side with a larger diameter of the injection slot 203 is set as the nozzle 204. The injection slot 203 and the nozzle 204 can guide the hydrogen injection, thereby expanding the injection range of the hydrogen and limiting the injection direction of the hydrogen to prevent the hydrogen injection from being too wide and difficult to control.

[0040] Working principle: After the device is assembled, the top of the nozzle body 1 is connected to an external pipe, allowing hydrogen to enter the interior of the nozzle body 1 through the air inlet 101. The hydrogen then passes through the compression spring screw 3 and enters the interior of the nozzle body 1. The hydrogen flows through the flow channel 104 and the hole 103 respectively. The hydrogen flows through the hole 103 to the space between the plug 4 and the slider 302. At the same time, most of the hydrogen enters the throat 2 through the flow channel 104. The hydrogen exerts pressure on one side of the check block 201, pushing the check block 201 open, and then the hydrogen is ejected out of the throat 2 through the injection slot 203.

[0041] When the hydrogen gas flows slowly and at a low pressure into the nozzle body 1, the slider 302 is at the bottom. At this time, the flow channel 104 is fully open, and the hydrogen gas flows through the flow channel 104 into the throat pipe 2 and is ejected.

[0042] When the flow rate of hydrogen entering the nozzle body 1 becomes faster and the pressure becomes higher, the slider 302 floats in the middle position under the combined force of the elastic force of the spring 301 and the pressure exerted by the hydrogen. At this time, the flow channel 104 is in a semi-open state, allowing the hydrogen to enter the throat 2 through the semi-open flow channel 104. When the slider 302 is floating in the middle position, the faster the flow rate of hydrogen and the greater the pressure, the slider 302 moves upward, and the opening of the flow channel 104 becomes smaller. Conversely, the slower the flow rate of hydrogen and the lower the pressure, the slider 302 moves downward, and the opening of the flow channel 104 becomes larger, thereby automatically adjusting the flow rate of hydrogen to stabilize the flow rate and prevent large fluctuations.

[0043] When the hydrogen flow rate entering the nozzle body 1 is too fast and the pressure exceeds the set safety limit, the slider 302 is in the uppermost position, completely blocking the flow channel 104. At this time, the flow channel 104 is completely closed, forming a cutoff effect on the hydrogen, and the hydrogen cannot enter the throat 2 and be ejected. After the hydrogen pressure drops, the slider 302 gradually descends, and the flow channel 104 slowly opens, and the hydrogen slowly ejects through the throat 2.

[0044] During the process of hydrogen transmission by the device, the discharge seat 402 and the tip seat 102 cooperate to transfer the charges inside the plug 4 and the nozzle body 1 respectively, so that the charges are concentrated inside the tip seat 102, and then the static electricity is released through the tip position of the tip seat 102 to eliminate the charges inside the device and avoid safety problems caused by static electricity breakdown of hydrogen.

[0045] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A hydrogen nozzle, comprising a nozzle body (1), a throat (2), a compression spring screw (3) and a plug (4), characterized in that: The nozzle body (1) is a hollow cylindrical structure, and an air inlet (101) is provided at the top of the nozzle body (1), a tip seat (102) is fixedly installed at the bottom of the nozzle body (1), a hole (103) is provided on one side of the interior of the nozzle body (1), and the hole (103) is C-shaped, and a flow channel (104) is provided at a position away from the hole (103) inside the nozzle body (1), and the flow channel (104) extends to the outside of the nozzle body (1); A throat pipe (2) is fixedly mounted on one side of the nozzle body (1), and the throat pipe (2) is in communication with the flow channel (104); a check block (201) is movably mounted on a side of the throat pipe (2) close to the nozzle body (1), and a check spring (202) is sleeved on the outside of the check block (201); and a spraying slot (203) is provided inside the throat pipe (2); A compression spring screw (3) is fixedly installed inside the nozzle body (1), a spring (301) is fixedly installed at the bottom of the compression spring screw (3), a slider (302) is fixedly installed at the bottom of the spring (301), a vent hole is opened inside the compression spring screw (3), and the installation position of the compression spring screw (3) is higher than the channel (103); A plug (4) is fixedly mounted on the bottom of the nozzle body (1); Both ends of the channel (103) are in communication with the interior of the nozzle body (1), and the cross-sectional diameter of the channel (103) is smaller than the inner diameter of the nozzle body (1). The channel (103) is capable of guiding part of the hydrogen flow to between the plug (4) and the slider (302); A traction belt (401) is fixedly installed on the top of the plug (4), and the traction belt (401) is electrically connected to the slider (302). A discharge seat (402) is fixedly installed on the bottom of the plug (4).

2. A hydrogen nozzle according to claim 1, characterized in that: The slider (302) is a solid cylindrical structure, and a limiting disc having a diameter greater than the diameter of the internal pipeline of the nozzle body (1) is fixedly installed on the bottom of the slider (302).

3. The hydrogen nozzle according to claim 1, characterized in that: The tip seat (102) is a hollow conical structure with the tip facing downward, and a plurality of ventilation slots are provided inside the tip seat (102).

4. The hydrogen nozzle according to claim 1, characterized in that: Two fixing bolts are installed inside the throat pipe (2), and the fixing bolts extend into the interior of the nozzle body (1).

5. The hydrogen nozzle according to claim 1, characterized in that: The injection slot (203) is a trumpet-shaped channel structure, and the side of the injection slot (203) with a larger diameter is provided as a nozzle (204).

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