RU23189U1 - GAS-USING DEVICE SAFETY AUTOMATION - Google Patents

Abstract

The safety automatics of gas-using devices, containing a pneumatic-gas protection and regulation unit with a control valve and associated flame sensors, traction and a water temperature regulator, moreover, the pneumatic-gas protection and regulation unit is equipped with an additional operating valve with a membrane actuator, the input of which is connected to the gas supply network, this submembrane cavity of the working valve is connected with a water temperature regulator, characterized in that the pneumatic gas protection and regulation unit is equipped with a regulation unit water temperature, including a water temperature control valve and said water temperature controller, made in the form of a water temperature sensor controlled by a manometric bellows transducer, while the water temperature sensor contains a thermocylinder connected by means of a pulse tube with a rod-bellows made with the possibility of expansion when heated water and constriction when cooling water when exposed to a temperature sensor from a thermal bulb, and the rod-bellows of the water temperature sensor is installed inside and a manometric bellows transducer containing a control knob, a screw for fastening the control knob, a tuning screw acting on the rod bellows, which through the hole in the base of the housing of the manometric bellows transducer rests on the upper part of the lever mechanism located in the cavity of the control valve in communication with the over-valve channel cavity of the operating shutoff valve and igniter, and from below through a throttle communicating with its lower submembrane cavity and through impulse tubes

Description

Safety automation of gas-powered lean devices.

The inventive utility model relates to the automation of heat and power processes and can be used as security automation and regulation of gasified heating boilers, water heaters, heating furnaces, technological installations, etc.

From analogues of the prior art, “Automation of a gasified heating unit containing a gas-gas protection and regulation unit with a valve and associated flame, draft and water temperature sensors is known, the gas-gas protection and regulation unit having an additional valve with a membrane actuator and channels (See SVN 1721397 MKI: F 23 N 5УО, application for invention N 47766222 06 dated January 3, 1990, authors E. A. Papush, V. P. Evteev and others, applicant Ukrainian State Design Institute for Gas Supply, heating zheniyu and comprehensive improvement of towns and villages of Ukraine, issued on 23, 03, 1992. in the Bulletin N11).

The disadvantage of this invention is that its automation has a dilatometer measuring the temperature of the boiler’s water, which crashes when a large temperature difference in the boiler (about 20 degrees) occurs. Also, the disadvantage of this invention is that in its automation there is no automatic blocking of the main burner when firing up the igniter, which leads to gas pollution of the furnace and, as a result, to an explosion.

From the analogues of the prior art, the invention can be adopted as the prototype closest to the claimed utility model in terms of the combination of essential features. The safety model of gas-using devices.

MKI: F23N500

comprising a pneumatic and gas protection and control box with a control valve, and associated flame sensors, traction and a water temperature regulator, the pneumatic and gas protection and control unit equipped with an additional operating valve with a membrane actuator, the input of which is connected to the gas supply network, while the submembrane working cavity the valve is connected with a water temperature regulator (RY N 2172447 F 23N 5-00, application for invention N 99116286 06 dated July 27, 1999, author Avramchuk P.N., applicant Avramchuk Pavel Nikolaevich, published on 20.08.2001 in the Bulletin N23). The disadvantage of this invention is that its automation has a dilatometer measuring the temperature of the water of the boiler, which comes into operation when a large temperature difference in the boiler is about 20 degrees, that is, when the water temperature drops from 90 to 70 degrees,

In addition, the disadvantage of this invention is that in automation there is no automatic blocking of the main burner during ignition of the igniter, which leads to gas pollution of the furnace and, as a result, to explosion. The technical result of the claimed utility model is: -to increase safety during the ignition of gas burner devices;

-automatic locking of the main burner when firing up the igniter:

-maintaining the temperature in the heated room within the specified limits, by regulating the gas flow to the main burner, depending on the set temperature, manually using the automatic heating system of the heating system; -automatic shutdown of the main and pilot burners in emergency situations (when the gas pressure is below the minimum, when the pilot burner goes out, when the draft is disturbed, when the water temperature rises above the permissible one (90 degrees),

-automatic switching on of the burners is carried out when the temperature in the boiler drops by 5 degrees, that is, when the water temperature in the boiler decreases from 90 to 85 degrees;

economical combustion of fuel with minimal emission of carbon monoxide and nitrogen into the environment.

The technical result in the claimed utility model is achieved by the fact that, in comparison with the invention adopted as a prototype, where the safety automatics of gas-using devices, it contains a pneumatic-gas unit for shields and regulation with a trap valve, and related flame sensors, traction and temperature regulator types with dilatometric a temperature meter, and the pneumogas protection and regulation unit is equipped with an additional working valve, the input of which is connected to the segi of the gas supply, and the submembrane slider of the working valve the pan is connected with a water temperature regulator; in the claimed utility model, the pneumatic-gas protection and control unit is equipped with a water temperature control unit including a water temperature control valve and said water temperature controller made in the form of a water temperature sensor controlled by a gauge bellows transducer, while the temperature sensor the water contains termzblov, connected by means of a pulse tube with a rod-bellows made with the possibility of its expansion when the water is heated and when cooling water when exposed to a temperature sensor from a thermoballon, moreover, the temperature sensor plug of the water temperature sensor is installed inside the gauge bellows transducer containing the control knob, the handle fastening screw, the adjustment screw acting on the shtoksily |) ONZ which leans through the hole in the base of the pressure gauge housing on the upper part of the lever mechanism located in the cavity of the control valve, communicating through the channel with nadklapannym cavity working about the shut-off valve and through the pilot tube communicates with the steamer, and below, through the throttle, it communicates with its lower submembrane cavity and through impulse tubes with flame and traction sensors, while the lower part

W & OIMP}

of the lever mechanism is rigidly connected to the shutter of the water temperature control valve, capable of vertically moving it up and down to open and close the water temperature control valve by means of the lever mechanism by said control handle, and the water temperature control valve communicates through the valve shutter with an internal: control channel valve, and through its valve cavity communicates with the gas outlet channel to the manifold of the gas burner device.

The design of the safety automation of gas-using devices (installations, devices, boilers, etc.} are illustrated by drawings, which depict:

FIG. 1. General view of the safety automation device for gas-using devices.

Fig, 2. Installation scheme for safety automation of gas-using devices.

Fig.Z. General view of the control unit for the safety automation of gas-using devices, front view.

Fig 4. General view of the control unit for the safety automation of gas-using devices, side view.

Figure 5. Installation diagram of the igniter panel (section AA in FIG. 2),

Information confirming the possibility

implementation of a utility model.

Safety automation of gas-using devices (Fig. 1} contains a gas-gas block 1 (Figs. 2-4) for protection and pei with a control valve 2 (Fig. 1) and flame sensors 3 (Fig. 1.5), traction 4 (Fig. 1, 2) associated with them through the channel 5 (Fig. 1) of the control valve 2 (Fig. 1) and the throttle 6 (Fig. 1), the Pneumogas block 1 (Fig. 2-4) of protection and regulation is equipped with a working shut-off valve 7 (fit. 1-4), the input 8 (Fig. 1 -4) which is connected to the gas supply network, and is also equipped with a water temperature control unit 9 (Fig. 3, 4), including a temperature control valve s 1 0 (Fig. 1) and a water temperature controller, made in the form of a water temperature sensor 11 (Fig. 1, 2, 4) (device), controlled by a gauge bellows transducer 12 (Fig. 1,3}. Water temperature sensor 11 (Fig. 1, 2, 4) contains a thermal bulb 13 (Fig. 1, 2, 4) connected by means of an impulse tube 14 (Fig. 1-4,) with a shock bellows 15 (Fig. 1). expansion during heating of water and narrowing during cooling of water when exposed to a pressure tank 13 (Fig. 1,2,4) of the water temperature sensor Hi of FIG. 1,2, 4). The valve for regulating the water temperature 1 U (Fig. 1) 5 of the water temperature regulating unit 9 (Fig. 3, 4) communicates with the channel 16 (Fig. 1,3) of the gas outlet to the collector 1 7 (Fig. 2,5) of the gas burner device , and also communicates through a valve gate 1 8 (Fig. 1) with an internal cavity 19 (Fig. 1) of the control valve 2 (Fig. 1), and then through a channel 5 (Fig. 1) communicates with the upper supravalve cavity 20 (Fig. . 1) a working shut-off valve 7 (Figs. 1-4) and with a pilot 21 (Fig. 1,5) through a tube 22 (Figs. 1, 3–5) of the pilot 21 (Fig. 1,5), and from the bottom through said inductor 6 (FIG. D) is reported with its lower sub-sampled cavity 23 (Fig. 1), and then through the impulse tubes 14 (Figs. 1-4), with muffled flame sensors. 1.5) and thrust 4 (Fig 1,2). In this case, the stockphone 15 (FIG. 1), a water temperature sensor AND (FIGS. 1, 2,

4); installed inside the gauge bellows transducer 12 (Fig. 1.3) of the water temperature control unit 9 (Fig. 3, 4) containing the control knob 24 (Fig. 1-4), a screw 25 (Fig. 1) securing the control knob 24 ( Figs. 1-4), a tuning screw 2b (Fig. 1 acting on the shtoksilfon 15 (Fig. 1), which through the hole 27 (Fig. 1) in the base 28 (Fig. 1) of the housing of the pressure gauge transducer 12 (Fig. 1 ) rests on the upper part of the lever mechanism 29 (Fig. 1) located in the cavity 19 (fj. 1) of the control valve 2 (fsh. 1). Moreover, the lower part is lever about the mechanism 29 (Fig. 1) is rigidly connected to the said valve shutter 18 (Fig. 1} of the water temperature control valve 10 (fUL), configured to vertically move it up and down to open and close the water temperature control valve 10 (Fig. 1) by means of a lever mechanism 29 (FIG. 1) controlled by the aforementioned control handle 24 (FIGS. 1-4) of the gauge bellows transducer 12 (FIG. 1-3). The operating valve-compartment-gel 7 (Fig. 1-4) is made divided into three cavities by a wall 30 (Fig. 1) and a seat 31 (Fig. 1), on which a shutter, mainly a rubber valve shutter 32 is supported (fit. IX mounted on the head of the spring-loaded rod 33 (Fig. 1}, rigidly connected to the small membrane 34 (Fig. 1) and mounted on the disk 35 C fs, I), and mounted above the large membrane 36 (Fig, 1), which is secured on the lower side by a cover 37 (FIG. 1), forming between them the aforementioned lower guiding cavity 23 (FIG. 1) of the operating valve 7 of the shutoff valve (FIG. 1-4 The lower submembrane cavity 23 (Fig. 1) of the operating shut-off valve 7 (Fig. 1-4) is connected through channels 38 (Fig. 1} and impulse tubes 1 4 (Fig. 1-4) with flame sensors 3 (Fig. 1) 1.5) and thrust 4 (Figs. 1, 2). The middle cavity located between the small membrane 34 (Fig. 1) and the valve 32 (Fig. 1), is connected with its input 8 (Figs. 1-4) to the gas supply network, and the upper riveted cavity 20 C of Fig. 1) communicates with

igniter 21 (FIG. K 5} To ignite the igniter 21 (fs, 1.5) it is equipped with a bimetallic plate 39 fs 5i, which is a sensitive element of the flame sensor housing 3 (Fig. 1.5; and tags 4 (Fig. 1.2). which are made equally and cueio-ir from a nozzle with ball seal (not shown in the drawing) For flame sensor 3 (fit 1.5), the position of the ball is determined by a bimetallic plate element 39 (FIG. 5) Flame sensor 3 {FIG. L 5} and ignitor 21 (FSH) , 1,5), are fixed on the panel 40 (Fig. 2) and are connected to the device. Slip-resistant devices are carried out as follows: T-.uv) yustii) will supply hh of three-wire through a gas pipeline connected to the hole, to the input 8 of which is connected to the gas supply network to the protection and regulation unit 1 I get into the space between the small membrane 34 and the valve 32 of the operating valve-compartment -jtjbi 7. Due to the force developed by the gas pressure on the small membrane 34, the valve 32 of the working valve of thejrj-compartment 7 is fully powered, when the control unit 24 is in the “Ignition through lever mechanism” position 29 produ ditsya shgvora lifting valve 32 off the seat 31 upward. Mr. gas is wrong for 1-bedroom 1, where it is set on fire with or, || At the same time, the gas from the upper cavity 19 of the control valve 2 continues to plaush iod the large membrane V into the lower cavity 23, as well as along the pulse pulse 14 of the sensor. flame 3 and five 4. He doesn’t buy 17 t 1z into the collector, since the valve pc1 for adjusting the water temperature IО remains closed in the position. Thus, the gas supply to the main burners is blocked when ignition is ignited 21 When gas is ignited in ignition 21, while the burner does not It works, the nozzle of the draft sensor 4 is closed, and the nozzle of the flame sensor 3 is open and gas is released through it. After warming up the igniter flame 21, the bimetallic plate 39 deforms, presses the ball-shaped valve against the seat and closes the valve of the flame sensor 3. The gas outlet from the impulse tube 14 stops, the pressure under the large membrane 36 in the lower cavity 23 of the working clapper-shutter 7 increases, and she, overcoming the effort of the small membrane 34 rises up, completely opens the valve shutter 32 of the working valve-shutter 7. The working valve-shutter 7 is included in the automation, When installing the control knob 24 on the The temperature of the water temperature control valve 10 is opened and the gas enters the manifold 1 7 and through the nozzles the front pipes burned, where it ignites from the flame of the igniter 21, Water heating in the boiler changes the temperature of the water temperature sensor 11 and a signal is transmitted through the pulse tube 14 to the water temperature controller. When the water in the boiler is heated above the temperature set by the control knob 24, the lever mechanism 29 is activated and the valve for controlling the temperature of the water 10 closes. Gas supply to the burner pipes is stopped. Igniter 21 continues to burn continuously. When the water cools down in the boiler according to the signal from the water temperature sensor 11, the lever mechanism 29 is actuated, the water temperature control valve 1 opens and gas is supplied to the burner pipes. Automation works in automatic mode. Setting the control knob 24 to a different temperature range automatically changes the mode of heating water in the boiler,

Description of the operation of automation in an emergency. In the absence of thrust due to the exit of combustion products, the thrust sensor is heated, resulting in deformation of the bimetallic plate 39 of the corresponding sensor 3.4, allowing the ball to move away from the saddle to open the sensor nozzle. The pressure in the pulse system and under the large membrane 36 of the operating valve-shutoff 7 drops, the rod 30 with the membranes of small 34 and large 36 goes down and the gas is completely cut off to the ignitor 21 and under the large membrane 36 of the working valve hence to the burner

When the igniter 21 goes out, heating of the bimetal plate 39 of the flame sensor 3 ceases and es cooling causes the nozzle of the flame sensor 3 to open and gas to escape from under the lower large membrane 36 When the gas supply is turned off for a short time (15 sec or more, and then pressure is restored in the gas pipeline, gas escapes from under the lower large membrane 36 through the throttle 6 along the internal channel of the housing of the working valve compartment of the gel 7

As a result of the depressurization from under the lower large membrane 36 and the closing of the valve shutter 32 to the seat 31 of the working valve compartment of the spruce 7, the gas supply to the igniter 21 is completely turned off and the pipes burn. The design of the automation sensors ensures their self-recovery 4cpej 15 minutes after shutting down the boiler in an emergency for the possibility of re-ignition

Applicants S / r 7 A.I. Pakhomov

A, P. Ermolaev at G. Rodionov

Claims (1)

Safety automation of gas-using devices, containing a pneumatic-gas protection and regulation unit with a control valve and associated flame sensors, traction and a water temperature regulator, the pneumatic-gas protection and regulation unit is equipped with an additional operating valve with a membrane actuator, the input of which is connected to the gas supply network, this submembrane cavity of the working valve is connected with a water temperature controller, characterized in that the pneumatic gas protection and regulation unit is equipped with a regulation unit water temperature, including a water temperature control valve and said water temperature controller, made in the form of a water temperature sensor controlled by a manometer bellows transducer, the water temperature sensor comprising a thermocylinder connected by means of a pulse tube to a bellows rod made with the possibility of expansion when heated water and constriction when cooling water when exposed to a temperature sensor from a thermal bulb, and the rod-bellows of the water temperature sensor is installed inside and a manometric bellows transducer comprising a control knob, a control knob mounting screw, a tuning screw acting on the rod bellows, which, through an opening in the base of the manometric bellows transducer body, rests on the upper part of the lever mechanism located in the cavity of the control valve in communication with the over-valve channel the cavity of the working shutoff valve and the pilot light, and from below through the throttle, communicating with its lower submembrane cavity and through the impulse tube with flame and traction sensors, while the lower part of the lever mechanism is rigidly connected to the shutter of the water temperature control valve, configured to vertically move it up and down to open and close the water temperature control valve by means of the lever mechanism by said control handle, wherein the water temperature control valve communicates through its valve with the internal channel of the control valve, and through its valve cavity with the gas outlet channel to the gas burner collector device.