Rain curtain type sprayer and rain curtain type spraying system

Abstract

The utility model discloses a rain curtain type sprayer and a rain curtain type spraying system, and the rain curtain type sprayer comprises a shell which is internally provided with a cylindrical spraying channel; the shell is divided into an upper shell body and a lower shell body, and the upper shell body and the lower shell body are rotationally connected. A rotating impeller is fixedly arranged in the lower shell along the center axis of the lower shell. The nozzle is fixed at the bottom end of the lower shell along the direction inclined to the central axis of the shell and is communicated with the spraying channel; according to the utility model, the combined action of the temperature sensing alarm and the smoke sensing alarm is utilized to automatically extinguish the conveying belt; therefore, the fire extinguishing efficiency of the spraying system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spray equipment technical field, concretely relates to a rain curtain type sprayer and rain curtain type spraying system. BACKGROUND

[0002] At present, when the converter smelts, the belt conveyor is mostly used to load and feed.

[0003] However, the high temperature caused by the reaction of the lime and other materials or the high temperature of the materials such as steel slag itself in the transportation of part of the belt leads to the ignition of the belt, and the fire accident occurs on the belt conveyor.

[0004] Therefore, the existing solution is to install the fire-fighting spraying facility in the belt gallery above the belt conveyor, so that the operator can extinguish the fire by opening the spraying valve on the spot when the fire accident occurs. However, due to the large number of belts in the factory building, the long distance between the belts, and the limited energy of the management personnel, it is impossible to ensure that each belt is always supervised by a person.

[0005] In addition, the existing spraying head is a rain curtain type spraying head, which forms a dome-shaped rain curtain to cover the surface of the belt conveyor. The spraying head has a dead angle, and the fire point may appear in the dead angle, which cannot be extinguished. INNOVATION CONTENT

[0006] In view of the above technical problems, the utility model provides a rain curtain type sprayer and rain curtain type spraying system, which uses the temperature sensing alarm and the smoke sensing alarm to jointly act on the transmission belt to automatically extinguish the fire. At the same time, the rotatable spraying head is used to expand the range of the spraying head cover. Therefore, the utility model plays a role in improving the fire extinguishing efficiency of the spraying system.

[0007] In order to achieve the above technical purpose, the utility model adopts the following technical means:

[0008] A rain curtain type sprayer comprises:

[0009] The shell has a cylindrical spraying channel inside; the shell is divided into an upper shell body and a lower shell body, and the upper shell body and the lower shell body are rotationally connected; wherein the lower shell body is fixedly provided with a rotating impeller along the central axis thereof inside;

[0010] The nozzle is fixed to the bottom end of the lower shell body in a direction inclined to the central axis of the shell and communicates with the spraying channel.

[0011] The bottom wall of the upper shell body is provided with an annular groove; the cross section of the groove is T-shaped.

[0012] The top of the lower shell body is rotationally connected with a ball bearing.

[0013] The top of the lower shell is clamped into the groove and rotates in the groove.

[0014] The ball is cylindrical.

[0015] The groove is coated with lubricating oil.

[0016] The bottom of the rotating impeller is fixedly provided with a fixed shaft.

[0017] The inner wall of the lower shell is fixedly provided with a fixed sleeve at the center axis thereof through a supporting rod.

[0018] The fixed shaft is fixed in the fixed hole through a connecting key.

[0019] A rain curtain type spraying system is provided with the rain curtain type sprayer, is arranged at a conveying belt and comprises:

[0020] A plurality of rain curtain type sprayers are evenly distributed above the conveying belt.

[0021] A plurality of temperature sensing alarms are evenly arranged on a belt support of the conveying belt.

[0022] A plurality of smoke sensing alarms are evenly arranged in a belt corridor above the conveying belt.

[0023] A rain shower alarm valve is connected with the rain curtain type sprayer through a spraying pipeline.

[0024] A logic controller is electrically connected with the temperature sensing alarm, the smoke sensing alarm and the rain shower alarm valve.

[0025] A valve voice alarm is arranged on the rain shower alarm valve. Advantages

[0026] Firstly, the rain curtain type spraying system of the utility model utilizes the joint action of the temperature sensing alarm and the smoke sensing alarm, and the logic controller automatically opens the rain shower alarm valve after the smoke sensing alarm detects smoke for more than 2 minutes and the temperature sensing alarm detects that the temperature on the belt is more than 200 DEG C and the time is more than 2 minutes, and the rain curtain type sprayer is used to automatically extinguish the fire on the conveying belt; therefore, the utility model improves the fire extinguishing efficiency of the spraying system.

[0027] Secondly, the rain curtain type sprayer of the utility model pumps high pressure water flow into the rain curtain type sprayer through the spraying pipeline after the rain shower alarm valve is opened; at this time, the high pressure water flow pushes the rotating impeller, and the lower shell drives the obliquely arranged nozzle to rotate; therefore, the utility model expands the range of the spraying head cage, and effectively improves the fire extinguishing efficiency of the rain curtain type spraying system. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic view of rain curtain type spraying system of the utility model;

[0029] Figure 2 It is a structure schematic view of rain curtain type sprayer of the utility model;

[0030] Figure 3 It is a structure schematic view of rotating impeller in lower shell of the utility model;

[0031] Figure 4 It is a partial sectional view of rain curtain type sprayer of the utility model;

[0032] Figure 5 It is a sectional view of upper shell and lower shell connecting portion of rain curtain type sprayer of the utility model.

[0033] In the drawing: 1, rain curtain type sprayer; 2, temperature sensing alarm; 3, smoke sensing alarm; 4, rain shower alarm valve;

[0034] 11, shell; 12, nozzle;

[0035] 111, upper shell; 112, lower shell; 113, rotating impeller; 114, recess; 115, ball;

[0036] 1131, fixed shaft; 1132, fixed sleeve; 1133, connecting key;

[0037] 41, valve voice alarm. DETAILED DESCRIPTION

[0038] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0039] Referring to Figures 2-5 The utility model provides a rain curtain type sprayer 1, include: shell 11, inside have cylindrical spraying channel; Shell 11 is divided into upper shell 111 and lower shell 112, and upper shell 111 and lower shell 112 are set as rotation connection, wherein, the inside of lower shell 112 is fixed along the center axis of itself and is provided with rotating impeller 113, nozzle 12 is fixed in the bottom end of lower shell 112 along the direction of inclination to the center axis of shell 11, and is communicated with spraying channel.

[0040] Referring to Figures 2 to 4After the rain alarm valve 4 is opened, high-pressure water flow is pumped to the rain curtain sprayer 1 through the spray pipeline; at this time, the high-pressure water flow pushes the rotating impeller 113, thereby causing the lower shell 112 to drive the obliquely arranged nozzle 12 to rotate; thereby, the utility model expands the range of the shower head cage, effectively improving the fire extinguishing efficiency of the rain curtain spray system; and, the pressure of the high-pressure water flow is used to drive the nozzle 12 to rotate, effectively reducing the redundancy and energy consumption of the device.

[0041] The bottom wall of the upper shell 111 is provided with an annular groove 114; the cross section of the groove 114 is T-shaped; the top of the lower shell 112 is rotatably connected with a ball 115; the top of the lower shell 112 is clamped into the groove 114 and rotates in the groove 114, and the groove 114 is coated with lubricating oil; wherein the ball 115 is cylindrical.

[0042] With reference to Figure 5 The lower shell 112 clamped into the groove 114 is provided with the ball 115, when the rotating impeller 113 rotates with the lower shell 112, the ball 115 also rotates inside the side wall of the lower shell 112; at this time, the arrangement of the ball 115 can effectively reduce the rotating friction between the upper shell 111 and the lower shell 112, so that the rotation of the rotating blade is smoother.

[0043] The bottom of the rotating impeller 113 is fixedly provided with a fixed shaft 1131; the inner wall of the lower shell 112 is fixedly provided with a fixed sleeve 1132 at the center axis thereof through a support rod; the fixed sleeve 1132 is provided with a fixed hole at the center axis thereof; and the fixed shaft 1131 is fixed in the fixed hole through a connecting key 1133.

[0044] With reference to Figure 4 The rotating impeller 113 is fixed to the lower shell 112 by means of key connection; thereby, the connection stability between the rotating impeller 113 and the lower shell 112 can be effectively improved.

[0045] The utility model also provides a rain curtain spray system, which applies the above rain curtain sprayer 1, is equipped with the rain curtain spray system in transmission belt place, the rain curtain spray system includes: a plurality of rain curtain sprayers 1, evenly distributes on transmission belt top, a plurality of temperature sensing alarms 2, evenly installs on the belt support of transmission belt, a plurality of smoke sensing alarms 3, evenly installs in the belt corridor above transmission belt, rain alarm valve 4 is connected with rain curtain sprayer 1 through spray pipeline, logic controller is electrically connected with temperature sensing alarm 2, smoke sensing alarm 3 and rain alarm valve 4.

[0046] With reference to Figure 1The utility model discloses a rain shower alarm valve 4 is opened automatically, and the rain curtain type sprayer 1 is used to the automatic fire extinguishing of transmission belt, and the utility model discloses a rain curtain type sprayer 1 is used to the automatic fire extinguishing of transmission belt.

[0047] The rain shower alarm valve 4 is provided with a valve voice alarm 41.

[0048] Reference Figure 1 When the rain shower alarm valve 4 starts working, the valve voice alarm 41 starts to send an alarm prompt sound, so as to prompt the transmission belt to have a fire point to the inspection personnel.

[0049] Working principle:

[0050] When the alarm sound of the alarm valve is sent, the rain shower alarm valve 4 is automatically opened, the fire-fighting water is rapidly extinguished to the fire position through the fire-fighting spray head, personnel is not needed to enter the dangerous site to open the valve, automatic control is realized, and the on-site fire accident can be rapidly and effectively solved.

[0051] Firstly, when a fire accident occurs, when the smoke alarm 3 detects a large amount of smoke and the smoke lasts for more than 2 minutes, or when the temperature of the transmission belt detected by the temperature alarm 2 is more than 200 DEG C and the high-temperature duration is more than 2 minutes, the smoke alarm 3 and the temperature alarm 2 will transmit the detection signal to the logic controller (i.e. PLC).

[0052] At this time, the PLC transmits the signal to the rain shower alarm valve 4, the valve voice alarm 41 sends an alarm sound, and the rain shower alarm valve 4 is automatically opened, the fire-fighting water is rapidly extinguished to the fire position through the rain curtain type sprayer 1; wherein, after the rain shower alarm valve 4 is opened, high-pressure water flow is pumped to the rain curtain type sprayer 1 through the spray pipeline; at this time, the high-pressure water flow will drive the rotating impeller 113, and then the lower shell 112 drives the inclined nozzle 12 to rotate, so that the coverage range of the rain curtain type sprayer 1 is expanded.

[0053] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various different ways without deviating from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A rain curtain sprayer characterized by, The rain curtain type spraying system is arranged at the conveying belt, and the rain curtain type spraying system comprises: a plurality of rain curtain type sprayers (1) which are uniformly distributed above the conveying belt; a plurality of temperature sensing alarms (2) which are uniformly arranged on the belt support of the conveying belt; a plurality of smoke sensing alarms (3) which are uniformly arranged in the belt corridor above the conveying belt; a rain shower alarm valve (4) which is connected with the rain curtain type sprayers (1) through a spraying pipeline; a logic controller which is electrically connected with the temperature sensing alarms (2), the smoke sensing alarms (3) and the rain shower alarm valve (4).

7. The rain curtain type spraying system according to claim 6, wherein the rain shower alarm valve (4) is provided with a valve voice alarm (41). ​ ​ ​ ​ ​ ​ ​ 6. A rain curtain system using the rain curtain sprayer according to any one of claims 1 to 5, characterized in that, ​ ​ ​ ​ ​ ​ ​ ​

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