Pipeline blowback cleaning device used after maintenance test of kitchen equipment fire extinguishing device
By designing a backblowing device in the fire extinguishing device of the kitchen equipment, introducing tap water with tee pipes and hoses, and backblowing and cleaning the residual water in the pipeline with a portable air pump, the problem of difficulty in cleaning the dead corners of the pipeline and the residual water at the nozzle in the prior art is solved, and the effect of effectively cleaning and preventing the reflux of the chemicals is achieved.
Patent Information
- Application Number
- CN202421192205.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
After the maintenance test of kitchen equipment fire extinguishing devices, it is difficult to effectively clean the dead corners of the pipes and the residual water at the end of the nozzle, causing the residual water to affect the kitchen work and may cause the reflux of the agent, increasing the difficulty of cleaning.
A device including a fire extinguishing device body, a backblowing device and a hand-held air pump is designed. The backblowing device uses a tee pipe and a hose to introduce tap water into the main line of the fire extinguishing agent. After ensuring the nozzle is working normally, the residual water in the pipeline is blown back and cleaned up to prevent negative pressure from causing the reflux of the agent.
Effectively clean the dead corners of the pipe and the residual water at the end of the nozzle, prevent the residual water from affecting the kitchen work, and avoid the reflux of the agent, simplify the subsequent cleaning process, and improve the stability of the fire extinguishing device.
Smart Images
Figure CN222605307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fire protection, in particular to a pipeline back-blowing cleaning device after maintenance and testing of a kitchen equipment fire extinguishing device. Background Art
[0002] Kitchen fire extinguishing can be divided into two parts. The first part is the automatic fire extinguishing pipeline installed on the ceiling of the entire kitchen, and the second part is the automatic fire extinguishing device installed on the top of the stove and in the flue. With the promulgation of relevant laws and regulations, kitchen equipment fire extinguishing devices have also become a must-have product for commercial kitchen fire protection. During installation and daily use, water mist spray tests are also required to ensure smooth pipes. Most existing technologies are to directly connect the tap water pipeline to the existing fire extinguishing agent pipeline, pump the tap water into the fire extinguishing agent pipeline and nozzle through a water pump, and observe whether the nozzle is working properly, the shape of the water mist spray and the coverage range.
[0003] The above-mentioned prior art solution has the following defects: since there are many blind corners in the pipeline and the pipeline is long, there is a lot of residual water in the dead corners of the pipeline and at the bottom of the nozzle after each test. After a period of time after the test, the rubber cap of the residual water drips out of the nozzle due to heat, affecting kitchen work. Even because the water flows through the one-way valve, a negative pressure is formed in the pipeline, and the medicine is sucked back from the medicine storage tank, which increases the difficulty of subsequent cleaning and also creates a bad impression on customers. Utility Model Content
[0004] The utility model aims to provide a pipeline backflush cleaning device after maintenance and testing of a kitchen equipment fire extinguishing device, so as to solve the problems existing in the above-mentioned prior art.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] A pipeline backflush cleaning device for kitchen equipment after maintenance and testing, comprising a fire extinguishing device body, a backflush device and a portable air pump, wherein the fire extinguishing device body is composed of a shell, a driving gas cylinder, a fire extinguisher group, a mechanical valve and a pressure reducing valve;
[0007] The backflush device is arranged at the top of the shell, and comprises a tee pipe and a hose. The tee pipe is sleeved on the fire extinguishing agent main pipeline, and the upper end of the tee pipe is connected with the stove fire extinguishing agent pipeline through a pipeline. The right end of the tee pipe is provided with a tap water pipeline, and the left end of the tee pipe is provided with a hose, and the other end of the hose is provided on the air delivery port of the portable air pump;
[0008] The portable air pump is arranged at the bottom end of the shell.
[0009] By adopting the above technical scheme, a three-way pipe is arranged between the fire extinguishing device body and the fire extinguishing agent main pipeline, and the two sides of the three-way pipe are respectively connected to a hose with a water valve and a tap water pipe. When the maintenance test is carried out, water enters the tap water pipe, and the water enters the fire extinguishing agent main pipeline, and then enters the flue fire extinguishing agent pipeline and the stove fire extinguishing agent pipeline respectively. When it is determined that the nozzle is operating normally, the tap water pipe is closed, and the air inlet of the portable air pump is connected to the other end of the hose. The air pump is turned on first, and then the water valve on the hose is opened. The residual liquid in the pipeline is blown out of the tap water pipe through the air pump to ensure that the dead corners and the residual water at the end of the nozzle are discharged to prevent the residual water from affecting the subsequent operation of the kitchen. At the same time, the back-blowing can be back-blown in place by the one-way valve to prevent the negative pressure agent from flowing back.
[0010] In a further embodiment, a mechanical valve is provided on the driving gas cylinder, the driving gas cylinder and the fire extinguisher group are connected by a pipeline, a pressure reducing valve is provided on the pipeline between the driving gas cylinder and the fire extinguisher group, a fire extinguishing agent outlet is provided at the top of the fire extinguisher group, and a fire extinguishing agent main pipeline is provided on the fire extinguishing agent outlet.
[0011] By adopting the above technical solution, a steel wire rope is arranged on the mechanical valve, which is linked to the temperature-sensitive release mechanism. When a fire occurs and the temperature-sensitive metal sheet melts, the striker on the mechanical valve will fall and pierce the driving gas cylinder. The high-pressure nitrogen in the driving gas cylinder will enter the fire extinguisher through the pressure reducing valve. Since a considerable negative pressure will be generated when the gas flows through the pipeline at a high speed, a pressure reducing valve is required. After entering the fire extinguisher, the nitrogen presses the fire extinguishing agent downward, and the fire extinguishing agent enters the fire extinguishing agent main pipeline through the delivery pipe arranged in the middle, which is safe and reliable.
[0012] In a further embodiment, a receiving groove is provided on the front plate of the housing, a control panel is provided in the receiving groove, an observation hole is provided on the control panel, and a display screen is provided below the observation hole.
[0013] By adopting the above technical solution, the status of the driving gas cylinder in the fire extinguishing device body can be observed, and the current value and the preset value will also be displayed on the display screen to ensure that the driving gas cylinder is always in a usable state.
[0014] In a further embodiment, a clip is fixedly mounted on the side wall of the shell, and a hose is arranged inside the clip.
[0015] By adopting the above technical solution, it can be ensured that the hose will not move when the air pump is working. At the same time, when the back-blowing device is not used in normal times, it can also limit the position of the hose.
[0016] In a further embodiment, a water valve is provided on the hose.
[0017] By adopting the above technical solution, the water valve is used to shut off and conduct the hose so that tap water does not flow out of the hose. When the remaining water in the pipeline needs to be blown away, the air inlet of the portable air pump can be connected and the water valve can be opened. Before opening the water valve, the portable air pump must be kept running to prevent remaining water from entering the air pump.
[0018] In a further embodiment, the hose is made of 201 stainless steel.
[0019] By adopting the above technical solution, although PVC hose is cheap and good quality, the kitchen environment is high in oil and temperature. The use of stainless steel water pipes can prevent the hose from deformation and damage, and can also adapt well to the kitchen environment.
[0020] In summary, the utility model has the following beneficial effects:
[0021] 1. Through the setting of the three-way pipe and the water valve, it can ensure that the residual water in the dead corners of the pipeline and the end of the nozzle is drained clean after each maintenance test, and the back-blowing check valve can prevent the negative pressure agent from flowing back;
[0022] 2. Through the setting of the water valve, the hose pipeline can be opened and closed at any time to ensure that tap water enters the main pipeline of the fire extinguishing agent and will not be sprayed out from the hose;
[0023] 3. The setting of mechanical valves and pressure reducing valves can improve the stability of the fire extinguishing device itself. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0025] Figure 2 It is a schematic diagram of the internal structure of the fire extinguishing device body in the utility model;
[0026] In the figure, 1. fire extinguishing device body; 11. outer shell; 111. control panel; 112. observation hole; 113. display screen; 12. driving gas cylinder; 13. fire extinguisher group; 14. mechanical valve; 15. pressure reducing valve; 2. backblowing device; 21. three-way pipe; 22. hose; 23. clip; 24. water valve; 3. portable air pump. DETAILED DESCRIPTION
[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0028] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0029] Example:
[0030] like Figure 1-2 As shown, a pipeline backflush cleaning device after maintenance and testing of a kitchen equipment fire extinguishing device comprises a fire extinguishing device body 1, a backflush device 2 and a portable air pump 3. The fire extinguishing device body 1 is composed of a shell 11, a driving gas cylinder 12, a fire extinguisher group 13, a mechanical valve 14 and a pressure reducing valve 15. The backflush device 2 is arranged at the top of the shell 11. The backflush device 2 comprises a three-way pipe 21 and a hose 22. The three-way pipe 21 is sleeved on the fire extinguishing agent main pipeline. The upper end of the three-way pipe 21 is connected with the stove fire extinguishing agent pipeline through a pipeline. A tap water pipeline is arranged at the right end of the three-way pipe 21, and a hose 22 is arranged at the left end of the three-way pipe 21. A clamp 23 is fixedly installed on the side wall of the shell 11, and a hose 22 is arranged in the clamp 23. A water valve 24 is arranged on the hose 22. The material of the hose 22 is 201 stainless steel. The other end of the hose 22 is arranged on the air delivery port of the portable air pump 3, and the portable air pump 3 is arranged at the bottom end of the shell 11. The hose 22 is fixed on one side of the shell 11, and can be very convenient to connect to the portable air pump 3. Considering the portability of the device, the air pump is not fixed in the fire extinguishing device body 1. The kitchen environment is heavy in oil smoke, humid, and high in temperature, which has a certain impact on the working life of the air pump, so the air pump is detachably installed at the bottom end of the shell 11, so that it can be connected whenever needed and is more convenient to use. After the water supply maintenance test of the tap water pipeline is completed, the hose 22 is connected to the air delivery port of the portable air pump 3, and the inside of the pipeline is purged to ensure that the residual water in the dead corners of the pipeline and the nozzle is completely cleared. The hose 22 is made of 201 stainless steel, which can resist high temperature and moisture, and has good strength.
[0031] like Figure 1-2As shown, a mechanical valve 14 is provided on the driving gas cylinder 12, and the driving gas cylinder 12 is connected to the fire extinguisher group 13 through a pipeline. A pressure reducing valve 15 is provided on the pipeline between the driving gas cylinder 12 and the fire extinguisher group 13. A fire extinguishing agent outlet is provided at the top of the fire extinguisher group 13, and a fire extinguishing agent main pipeline is provided on the fire extinguishing agent outlet. A containing groove is provided on the front plate of the shell 11, and a control panel 111 is provided in the containing groove. An observation hole 112 is provided on the control panel 111, and a display screen 113 is provided below the observation hole 112. The fire extinguishing device body 1 is driven mainly by a mechanical mechanism, assisted by certain electronic equipment, and the fire is detected by a temperature-sensitive release mechanism. When the steel wire rope of the temperature-sensitive release mechanism changes its stroke, the mechanical valve 14 will be started, puncturing the driving gas cylinder 12, so that high-pressure nitrogen enters the fire extinguisher through the pressure reducing valve 15, and then the fire extinguishing agent is sent to the fire extinguishing agent main pipeline, and sprayed through the nozzles on the stove fire extinguishing agent pipeline and the flue fire extinguishing agent pipeline to extinguish the fire.
[0032] Specific implementation process:
[0033] First, make sure that the water valve 24 on the hose 22 is in the closed state, turn on the water pump on the tap water pipeline, and the tap water enters the fire extinguishing agent main pipeline from the right end of the three-way pipe 21, and then enters the nozzles of the stove fire extinguishing agent pipeline and the flue fire extinguishing agent pipeline. After confirming that each nozzle can operate normally and the water mist distribution meets the requirements, close the tap water pipeline. At this time, there is still a lot of residual water in the pipeline. Then connect the other end of the hose 22 to the gas delivery port of the portable air pump 3, first turn on the portable air pump 3, and then open the water valve 24. The gas quickly Enter the fire extinguishing agent main pipeline through the hose 22. In this process, the dead corners of the pipeline and the residual water in the nozzle are completely discharged. Since the flue fire extinguishing agent pipeline also plays the role of regularly cleaning the grease in the flue, an external cleaning agent storage tank is required. When the water flows quickly through the one-way valve, a negative pressure in the pipeline is formed, which may backflow and suck out the agent from the storage tank, increasing the difficulty of cleaning. After the air pump is back-flushed into place, the problem of subsequent agent dripping can be avoided. Finally, the water valve 24 is closed, the air pump is turned off, and the kitchen can work normally. In the embodiments disclosed in the present utility model, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments disclosed in the present utility model can be understood according to specific circumstances.
[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A backflush cleaning device for a kitchen equipment fire extinguishing device after maintenance and testing, comprising a fire extinguishing device body (1), a backflush device (2) and a portable air pump (3), characterized in that: The fire extinguishing device body (1) is composed of a housing (11), a driving gas cylinder (12), a fire extinguisher assembly (13), a mechanical valve (14) and a pressure reducing valve (15); The backflush device (2) is arranged at the top end of the housing (11), and comprises a three-way pipe (21) and a hose (22). The three-way pipe (21) is sleeved on the fire extinguishing agent main pipeline, and the upper end of the three-way pipe (21) is connected to the stove fire extinguishing agent pipeline through a pipeline. The right end of the three-way pipe (21) is provided with a tap water pipeline, and the left end of the three-way pipe (21) is provided with a hose (22). The other end of the hose (22) is arranged on the gas delivery port of the portable air pump (3); The portable air pump (3) is arranged at the bottom end of the housing (11).
2. According to claim 1, a pipeline backflush cleaning device after maintenance test of kitchen equipment fire extinguishing device, characterized in that: The driving gas cylinder (12) is provided with a mechanical valve (14); the driving gas cylinder (12) and the fire extinguisher group (13) are connected via a pipeline; a pressure reducing valve (15) is provided on the pipeline between the driving gas cylinder (12) and the fire extinguisher group (13); a fire extinguishing agent outlet is provided at the top end of the fire extinguisher group (13); and a fire extinguishing agent main pipeline is provided on the fire extinguishing agent outlet.
3. According to claim 2, a pipeline backflush cleaning device after maintenance test of kitchen equipment fire extinguishing device is characterized by: A receiving groove is provided on the front plate of the housing (11), a control panel (111) is provided in the receiving groove, an observation hole (112) is provided on the control panel (111), and a display screen (113) is provided below the observation hole (112).
4. According to claim 1, a pipeline backflush cleaning device after maintenance test of kitchen equipment fire extinguishing device, characterized in that: A clip (23) is fixedly mounted on the side wall of the housing (11), and a hose (22) is arranged inside the clip (23).
5. According to claim 1, a pipeline backflush cleaning device after maintenance test of kitchen equipment fire extinguishing device, characterized in that: The hose (22) is provided with a water valve (24).
6. A pipeline backflush cleaning device after maintenance test of kitchen equipment fire extinguishing device according to claim 5, characterized in that: The material of the hose (22) is 201 stainless steel.