Flame-retardant emergency device for R290 refrigerant

Abstract

The utility model relates to the technical field of flame-retardant emergency, and provides an R290 refrigerant flame-retardant emergency device which comprises a first mounting seat and a second mounting seat, a refrigerant pipeline penetrates through the top of the first mounting seat, and the second mounting seat is arranged at the top end of the refrigerant pipeline. By arranging the flame-retardant structure, under the action of the flange plate, a flame retardant can enter the agent box, under the action of the NDIR sensor, gas in the first mounting seat and the second mounting seat can be detected, when the gas concentration reaches a preset value, the NDIR sensor can control the agent discharging valve to start working through the single chip microcomputer, and the flame retardant can be discharged through the agent discharging valve. According to the flame-retardant emergency device for the R290 refrigerant, the fire retardant in the agent box is sprayed to the top end of the refrigerant pipeline through the agent discharging pipe and the spray head, so that fire disasters are prevented from occurring and spreading, the function of facilitating flame retardance of the device is achieved, and the applicability of the flame-retardant emergency device for the R290 refrigerant in use is improved.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant emergency technology, and in particular to a flame retardant emergency device for R290 refrigerant. Background Technology

[0002] The main component of R290 refrigerant is propane, which belongs to the hydrocarbon refrigerant family. It is a colorless and odorless gas with excellent refrigeration performance and environmental protection characteristics. When using R290 refrigerant, in order to ensure that the gas source can be quickly cut off in the event of a leak to prevent fire and explosion, a flame-retardant emergency device for R290 refrigerant is used.

[0003] To address this, patent CN210069138U discloses an R290 refrigerant flame-retardant emergency device, comprising a pipe body, a refrigerant pipe, a partition, an upper cavity, a lower cavity, a first nut, a first threaded rod, a connecting hole, a fixing plate, a second nut, a connecting rod, a through hole, a connecting plate, a connecting block, an arc-shaped plate, an opening, a third nut, a second threaded rod, a side plate, a high-temperature resistant elastic gasket, a protective plate, a connecting groove, and a rubber gasket. This utility model has a reasonable structure. The first threaded rod is pushed through the connecting hole, causing the fixing plate to move downwards. The fixing plate then causes the connecting rod to slide downwards through the through hole inside the partition. One end of the connecting rod moves the arc-shaped plate through the connecting block and a rotating shaft. One end of the arc-shaped plate rotates with the connecting plate through the connecting block and a rotating shaft. The arc-shaped plate causes the rubber gasket to adhere tightly to the side wall of the refrigerant pipe. The first nut is threadedly connected to the first threaded rod, fixing the position of the first threaded rod, thereby fixing the position of the refrigerant pipe. This facilitates fixing refrigerant pipes of different diameters.

[0004] While the R290 refrigerant flame retardant emergency device mentioned above is convenient for fixing refrigerant pipes of different diameters, its applicability is low because it is inconvenient to retard flames and prevent fires from starting and spreading. Utility Model Content

[0005] The purpose of this invention is to provide a flame-retardant emergency device for R290 refrigerant, in order to solve the defect that existing flame-retardant emergency devices for R290 refrigerant are not convenient for flame retardancy.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flame-retardant emergency device for R290 refrigerant, comprising a first mounting base and a second mounting base;

[0007] A refrigerant pipe passes through the top of the first mounting base, and a second mounting base is provided at the top of the refrigerant pipe. Fixing bolts are evenly inserted through both sides of the interior of the second mounting base and the first mounting base.

[0008] The top of the second mounting base is fixed with a flame-retardant structure, which includes an agent box disposed above the second mounting base. An NDIR sensor is inserted through one side of the top of the second mounting base. Support plates are fixed on both sides of the agent box. An inlet pipe is fixed at the top of the agent box, and a discharge pipe is fixed at the bottom of the agent box.

[0009] Both sides of the interior of the first and second mounting bases are equipped with sealing structures.

[0010] When using this device, the flame-retardant structure facilitates its flame-retardant function, thereby improving the applicability of the R290 refrigerant flame-retardant emergency device during use; the sealing structure facilitates its sealing function, thereby improving the sealing performance of the R290 refrigerant flame-retardant emergency device during use.

[0011] Preferably, the fixing bolts are evenly spaced inside the first mounting base and the second mounting base, and the first mounting base and the second mounting base are fixedly connected by the fixing bolts. Under the action of the fixing bolts, the first mounting base and the second mounting base are fixed to each other or separated.

[0012] Preferably, the bottom end of the support plate is fixedly connected to the top end of the second mounting base, and a flange is fixed to the end of the inlet pipe away from the agent box. The flange allows the flame retardant to enter the interior of the agent box, and the NDIR sensor can detect the gas inside the first and second mounting bases.

[0013] Preferably, the bottom end of the discharge pipe extends into the interior of the second mounting base and is fixed with a nozzle, while a discharge valve is installed at the top of the discharge pipe. When the gas concentration reaches a preset value, the NDIR sensor controls the discharge valve to start working via a microcontroller, causing the flame retardant inside the refrigerant box to be sprayed onto the top of the refrigerant pipeline through the discharge pipe and nozzle, thereby preventing the occurrence and spread of fire.

[0014] Preferably, the sealing structure includes a placement groove, a rubber ring, and a sealing ring. The placement groove is formed on both sides inside the first mounting base and the second mounting base. A rubber ring is provided inside the placement groove. One side of each rubber ring extends to the outside of the first mounting base and the second mounting base and is fixed with a sealing ring.

[0015] Preferably, the rubber ring and the first mounting base form an engaging structure through a placement groove, and the rubber ring and the second mounting base also form an engaging structure through the placement groove. When the rubber ring moves into the interior of the placement groove, it secures the sealing ring; when the rubber ring moves to the exterior of the placement groove, it allows for replacement of the sealing ring.

[0016] Preferably, the inner side of the sealing ring is in contact with the outer side of the refrigerant pipe. The sealing ring increases the sealing between the refrigerant pipe and the second and first mounting seats, preventing gas leakage and creating a sealed space between the first and second mounting seats, thus improving the stability of the NDIR sensor during use.

[0017] The present invention provides a flame-retardant emergency device for R290 refrigerant, the advantages of which are:

[0018] By incorporating a flame-retardant structure, the flame retardant can be introduced into the refrigerant box under the action of the flange. Under the action of the NDIR sensor, the gas inside the first and second mounting bases can be detected. When the gas concentration reaches the preset value, the NDIR sensor will control the discharge valve through the microcontroller to start working, so that the flame retardant inside the refrigerant box is sprayed onto the top of the refrigerant pipeline through the discharge pipe and nozzle, thereby preventing the occurrence and spread of fire. This realizes the flame-retardant function of the device, thus improving the applicability of the R290 refrigerant flame-retardant emergency device in use.

[0019] By incorporating a sealing structure, the sealing performance between the refrigerant pipeline and the second and first mounting seats is enhanced under the action of the sealing ring, preventing gas leakage and creating a sealed space between the first and second mounting seats. This improves the stability of the NDIR sensor during use. When the rubber ring moves into the placement groove, it secures the sealing ring; when it moves out of the placement groove, it allows for replacement. This facilitates sealing and improves the sealing performance of the R290 refrigerant flame-retardant emergency device during use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0022] Figure 3 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0024] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0025] The reference numerals in the figure are as follows: 1. First mounting base; 2. Second mounting base; 3. Fixing bolt; 4. Refrigerant pipe; 5. Flame-retardant structure; 501. Refrigerant box; 502. Support plate; 503. NDIR sensor; 504. Inlet pipe; 505. Outlet pipe; 6. Sealing structure; 601. Placement groove; 602. Rubber ring; 603. Sealing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a flame-retardant emergency device for R290 refrigerant, including a first mounting base 1 and a second mounting base 2. A refrigerant pipe 4 passes through the top of the first mounting base 1, and the second mounting base 2 is provided at the top of the refrigerant pipe 4. Fixing bolts 3 are evenly inserted through both sides of the interior of the second mounting base 2 and the first mounting base 1. A flame-retardant structure 5 is fixed to the top of the second mounting base 2. The flame-retardant structure 5 includes a refrigerant box 501 disposed above the second mounting base 2. An NDIR sensor 503 passes through one side of the top of the second mounting base 2. Both sides of the refrigerant box 501 are fixed. There is a support plate 502, an inlet pipe 504 is fixed to the top of the agent box 501, an outlet pipe 505 is fixed to the bottom of the agent box 501, the bottom of the support plate 502 is fixedly connected to the top of the second mounting base 2, a flange is fixed to the end of the inlet pipe 504 away from the agent box 501, the bottom of the outlet pipe 505 extends into the interior of the second mounting base 2 and is fixed with a nozzle, an outlet valve is installed on the top of the outlet pipe 505, and fixing bolts 3 are evenly distributed inside the first mounting base 1 and the second mounting base 2. The first mounting base 1 and the second mounting base 2 are fixedly connected by fixing bolts 3.

[0028] Reference Figure 2 and Figure 3 As shown, the flame retardant enters the interior of the refrigerant box 501 through the flange. The NDIR sensor 503 can detect the gas inside the first mounting base 1 and the second mounting base 2. When the gas concentration reaches the preset value, the NDIR sensor 503 will control the discharge valve through the microcontroller to start working, open the discharge valve, and allow the flame retardant inside the refrigerant box 501 to be sprayed onto the top of the refrigerant pipeline 4 through the discharge pipe 505 and the nozzle, thereby preventing the occurrence and spread of fire.

[0029] Sealing structures 6 are installed on both sides inside the first mounting base 1 and the second mounting base 2. The sealing structure 6 includes a placement groove 601, a rubber ring 602 and a sealing ring 603. The placement groove 601 is opened on both sides inside the first mounting base 1 and the second mounting base 2. A rubber ring 602 is provided inside the placement groove 601. One side of the rubber ring 602 extends to the outside of the first mounting base 1 and the second mounting base 2 and is fixed with the sealing ring 603. The rubber ring 602 and the first mounting base 1 form an engaging structure through the placement groove 601. The rubber ring 602 and the second mounting base 2 form an engaging structure through the placement groove 601. The inner side of the sealing ring 603 is in contact with the outer side of the refrigerant pipe 4.

[0030] Reference Figure 4 and Figure 5 As shown, the sealing ring 603 is moved so that the rubber ring 602 is moved into the placement groove 601, thereby making the sealing ring 603 interlock and fix with the first mounting base 1 and the second mounting base 2. The inner side of the sealing ring 603 contacts the outer side of the refrigerant pipe 4. Under the action of the sealing ring 603, the sealing performance between the refrigerant pipe 4 and the second mounting base 2 and the first mounting base 1 is increased, preventing gas leakage and forming a sealed space between the first mounting base 1 and the second mounting base 2, which improves the stability of the NDIR sensor 503 during use. When the rubber ring 602 is moved to the outside of the placement groove 601, the sealing ring 603 can be replaced.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flame-retardant emergency device for R290 refrigerant, comprising a first mounting base (1) and a second mounting base (2); Its features are: A refrigerant pipe (4) is passed through the top of the first mounting base (1), and a second mounting base (2) is provided at the top of the refrigerant pipe (4). Fixing bolts (3) are evenly passed through both sides of the interior of the second mounting base (2) and the first mounting base (1). A flame-retardant structure (5) is fixed to the top of the second mounting base (2). The flame-retardant structure (5) includes an agent box (501) disposed above the second mounting base (2). An NDIR sensor (503) is inserted through one side of the top of the second mounting base (2). Support plates (502) are fixed to both sides of the agent box (501). An inlet pipe (504) is fixed to the top of the agent box (501). An outlet pipe (505) is fixed to the bottom of the agent box (501). Both sides of the first mounting base (1) and the second mounting base (2) are equipped with sealing structures (6).

2. The flame-retardant emergency device for R290 refrigerant according to claim 1, characterized in that: The fixing bolts (3) are evenly distributed inside the first mounting seat (1) and the second mounting seat (2), and the first mounting seat (1) and the second mounting seat (2) are fixedly connected by the fixing bolts (3).

3. The flame-retardant emergency device for R290 refrigerant according to claim 1, characterized in that: The bottom end of the support plate (502) is fixedly connected to the top end of the second mounting base (2), and a flange is fixed to the end of the inlet pipe (504) away from the agent box (501).

4. A flame-retardant emergency device for R290 refrigerant according to claim 1, characterized in that: The bottom end of the discharge pipe (505) extends into the interior of the second mounting base (2) and is fixed with a nozzle. A discharge valve is installed on the top of the discharge pipe (505).

5. A flame-retardant emergency device for R290 refrigerant according to claim 1, characterized in that: The sealing structure (6) includes a placement groove (601), a rubber ring (602), and a sealing ring (603). The placement groove (601) is opened on both sides inside the first mounting base (1) and the second mounting base (2). A rubber ring (602) is provided inside the placement groove (601). One side of the rubber ring (602) extends to the outside of the first mounting base (1) and the second mounting base (2) and is fixed with a sealing ring (603).

6. A flame-retardant emergency device for R290 refrigerant according to claim 5, characterized in that: The rubber ring (602) and the first mounting base (1) form an engaging structure through the placement groove (601), and the rubber ring (602) and the second mounting base (2) form an engaging structure through the placement groove (601).

7. A flame-retardant emergency device for R290 refrigerant according to claim 5, characterized in that: The inner side of the sealing ring (603) is in contact with the outer side of the refrigerant pipe (4).

Images