RU91413U1 - HEATING WATER BOILER (OPTIONS) - Google Patents

Abstract

1. The boiler is a heating water-heating boiler, including a vertical casing, in which a heat exchanger chamber with an ignition and working gas burners is placed, a heat exchanger, a flue pipe and an automatic control system, characterized in that the latter provides automatic ignition, maintaining a given temperature of the water leaving the boiler and protection the boiler in emergency situations according to a given program and includes a microprocessor control module, an ignition module, a cross-board, a sensor-relay of maximum gas pressure, a sensor e minimum pressure gas-sensor relays the water pressure, water temperature sensor at the outlet of the boiler, the temperature sensor of the boiler flue gas, the combined gas valve actuator and the high voltage transformer. ! 2. The boiler according to claim 1, characterized in that the working gas burner is made in the form of a two-stage microflare burner. ! 3. The boiler according to claim 1, characterized in that the automatic control system is fixed to the panel and located in the casing in the upper part on the front side of the housing. ! 4. The boiler is a heating water-heating boiler, including a vertical housing, in which a heat exchanger chamber with an ignition and working gas burners is placed, a heat exchanger, a flue pipe and an automation and safety system, characterized in that the latter provides automatic ignition, maintaining a given temperature of the water leaving the boiler and boiler protection in emergency situations according to a given program and includes a microprocessor control module, an ignition module, a cross-board, a maximum gas pressure sensor-relay, a relay-sensor e minimum pressure ha

Description

A group of utility models relates to the power system, in particular, to the design of hot water tube boilers using natural gaseous fuels and can be used to heat residential buildings, public buildings, and industrial buildings equipped with a forced circulation heating system.

Known instantaneous water heaters containing a casing, water and gas pipelines, a block valve, a gas burner, a combustion chamber, a heat exchanger and a system for removing combustion products (Rogozin A.S. Household gas equipment, operation and repair. L .: Nedra, 1971, p. .99).

The disadvantage of this device is low efficiency and lack of reliability. This is due to the presence of manual adjustment of the water heater to the heat load corresponding to the amount of water consumed. In the absence of a water setting in the heater heats up below the required temperature or overheats with boiling and failure of the heat exchanger and the water heater as a whole.

To ensure the efficiency and reliability of the water heater, it is necessary to equip it with an automatic system for regulating the level of heating of the coolant.

Known hot water boiler for gaseous or liquid fuel (see US Patent No. 3282256, IPC F24H 1/08, publ. 01.11.1966). The boiler has a housing with a combustion chamber of rectangular cross section. All walls of the chamber are made flat, moreover, in one of the end walls there is an opening for the exit of flue gases, the other wall is equipped with a channel for supplying flue gases to a number of water pipes located under the chamber vault parallel to the latter and washed by water. The combustion chamber of the boiler is divided by a grate of water pipes into a large upper part and a lower lower part. Lattice pipes are located along the long side of the chamber along almost its entire width. In the upper part of the combustion chamber there is a burner through which the air-fuel mixture enters. As a result, in this design, water is heated on one side with the help of smoke tubes under the roof of the combustion chamber, and on the other, by direct washing of the water pipes with a torch in the lower part of the combustion chamber. The boiler efficiency is relatively high, but the design is complex and unreliable due to the frequent failure of numerous hot water pipes.

Closest to the claimed group of utility models by technical nature and achieved by using the technical result is a gas water heater comprising a cover provided with an exhaust hole, a casing formed by side walls, inside which a water tank, a main and pilot burner with a gas ignition device located under capacity, water and gas pipelines with shut-off and control valves and an automatic control system (“Big Soviet Encyclopedia”, edition in ond, M .: The Great Soviet Encyclopedia, 1952, Vol.10, str.50-51).

During the operation of the water heater, gas from the burners and atmospheric air enter the combustion chamber through the open end of the casing, where they are mixed. The resulting mixture is ignited and burned. The released heat heats the water in the tank. Unused heat along with the exhaust gases is removed from the casing through the side gap and the exhaust hole. Non-participating in combustion air, moving along the lateral gap, shields the walls of the casing from hot exhaust gases. A disadvantage of the known apparatus is the limited heat-shielding capabilities of the shielding air.

The technical problem for which the proposed group of utility models serves is the creation of a compact and autonomous heat generating installation that does not require large rooms for its placement, the presence of maintenance personnel near the specified installation during its operation and while ensuring the possibility of its placement near heat consumers and / or hot water.

Using the proposed group of utility models provides the following technical result:

- simplification of the design;

- ease of installation, ease of operation and maintenance;

- improving the reliability of the device.

The task underlying this group of utility models, with the achievement of the claimed technical result, is solved by the fact that in the boiler there is a heating water heating boiler according to the first embodiment, comprising a vertical housing in which a heat exchanger chamber with an ignition and working gas burners is placed, a heat exchanger, a flue pipe, and an automatic control system, the latter provides automatic ignition, maintaining a given temperature of the water leaving the boiler and protecting the boiler in emergency situations This program also includes a microprocessor control module, an ignition module, a cross-board, a sensor for maximum gas pressure, a sensor for minimum gas pressure, a sensor for maximum water pressure, a sensor for the temperature of the water leaving the boiler, a temperature sensor for the flue gases of the boiler, combined gas valve with servomotor and high voltage transformer.

The stated technical problem is also solved by the fact that in the heating boiler according to the second embodiment, comprising a vertical casing in which a heat exchanger chamber with an ignition and working gas burners is placed, a heat exchanger, a smoke outlet and an automation and safety system, characterized in that the latter provides an automatic ignition, maintaining the set water temperature at the outlet of the boiler and protecting the boiler in emergency situations according to the specified program and includes a microprocessor control module phenomena, ignition module, cross-circuit board, maximum gas pressure switch, minimum gas pressure switch, maximum water pressure switch, boiler water temperature sensor, boiler flue gas temperature sensor, two combined gas valves connected in parallel servo-driven and high voltage transformer.

Additional significant differences of the proposed group of utility models in two versions are that the working gas burner is made in the form of a two-stage microflare burner, and the automatic control system is located in the casing in the upper part on the front side of the housing.

Preferred embodiments of the group of utility models are described below based on the drawings, where:

- figure 1 presents a schematic diagram of the proposed boiler heating water heating;

- figure 2 is also a side view;

- figure 3 presents a second embodiment of the proposed boiler heating water heating;

- figure 4 presents the structural diagram of an automatic control system.

The heating water heating boiler includes a vertical casing 1, in which a heat exchange chamber 2 with an ignition 3 and a working 4 gas burners is placed, the latter being made in the form of a two-stage microflare burner (for example, Polidoro-Multigas), a heat exchanger 5, water inlet pipe 6, outlet a pipe 7, a gas supply pipe 8 and an automatic control system 9. The heat exchange chamber 2 is formed by walls 10 and a roof 11, in which a pipe 12 for the exit of combustion products and a safety valve 13 are fixed.

The automatic control system 9 is located in the upper part on the front side of the boiler, closed by the front casing 14 and the lower removable casing 15 and provides automatic ignition, maintaining the set temperature of the water leaving the boiler and protecting the boiler in case of emergency according to the specified program. The automatic control system 9 includes a microprocessor control module 16, the ignition module 17, the cross-board 18, the maximum gas pressure sensor 19, the minimum gas pressure sensor 20, the maximum water pressure sensor 21, the outlet temperature sensor 22 the boiler, the temperature sensor 23 of the flue gases of the boiler, a pilot burner 3 with ignition and flame control electrodes, a combined gas valve 24 with a servo drive and a high-voltage transformer 25. Units and elements of the automatic control system 9 are widely used in heat transfer technology and mastered by industry.

Microprocessor control module 16 (for example, brand ACS 134-02, manufacturer of Active-Thermocub LLC) is designed to control and control the operation of gas burners complete with ignition module 17 in automatic mode as part of a device with an atmospheric burner, it receives electrical signals from sensors, the development of control commands, the issuance of commands to the executive bodies (valves, ignition electrode) and an indication of the state of operation of the entire system with the boiler. In this case, the module 16 controls the operation of the ignition module, the combined gas valve of the working burner and the pilot burner. In addition, control module 16:

- displays the measured temperature of the heated water;

- displays the measured temperature of the flue gases (draft) of the boiler;

- displays and controls the inlet gas pressure (max, min);

- displays and controls the outlet water pressure (max);

- displays the presence of a flame of the ignition burner.

The algorithm of the module 16 is determined by the parameters that can be changed by the service department. The parameter values are stored in the non-volatile memory of the device. At the same time, module 16 supports three operating modes:

- indication mode of measured parameters;

- temperature setting mode;

- service mode.

During operation, the control module performs general diagnostics of the kit. If a malfunction occurs, the module 16 enters the blocking mode, while all the gas valves are closed. The burners turn off. The indicator displays an error code in the form <Err XX-YY>. The number XX displays the error code or the sum of the error codes if there are more than one errors.

The ignition module 17 is designed to control the solenoid valves of the burners and to remove information from the sensors of the boiler. In this case, the ignition module 17 (for example, brand ACS 133-01, manufacturer of Active-Thermocub LLC), including a power supply unit, ADC, DAC decoder and power switches, controls the operation of the pilot burner 4 (for example, brand ZAI R) and a combined gas valve 24 with a servo-driver (for example, series VR400), and also measures the temperature of heated water, measures the temperature of the flue gases (draft) of the boiler, measures the inlet gas pressure (max, min), measures the outlet water pressure (max) and monitors the presence of a working flame burners 3.

The set of the control module and the ignition module through a cross-board (for example, the Classic brand) has outputs for the emergency stop signal of the boiler

Cross-board 18 is designed for switching external signals, supplying voltage to the burner automation kit, transmitting an error signal.

High-voltage transformer 25 (for example, ZT870 Satronic) is designed to generate the high voltage (spark) required to ignite the air-gas mixture.

The boiler automation system provides automatic ignition, maintaining the set water temperature at the outlet of the boiler and protecting the boiler in the following emergency situations:

- lowering the gas pressure in front of the combined gas valve with a servo drive below the minimum acceptable value (Pmin = 11.0 mbar = 110 mm water column);

- increase in gas pressure in front of the combined gas valve with a servo actuator is 15% higher than the maximum set pressure value;

- increase in water temperature in the boiler above the maximum allowable value (105 ° C);

- increase in water pressure in the boiler above the maximum permissible value (3 kg / cm2);

- lack of traction;

- extinction of the flame of the burner;

- the disappearance of the supply voltage in the automation circuits.

The operation of the boiler heating water heating is as follows. Open the gas valve on the lowering of the boiler and turn on the power supply switch 26 - <Network>. On the indicator after 5-20 seconds. the actual measured temperature of the water leaving the boiler must be established. If this temperature is lower than the set temperature, the ignition cycle of the burner starts automatically. During the first ignition, several unsuccessful ignition attempts are allowed, which are associated with a delay in filling the burner power system with gas. In case of unsuccessful ignition attempts, an error code is displayed on the control module. If ignition occurs, the burner icon is displayed for 5 seconds. after this time, the valve of the ignition burner 3 closes and the message Err01-02 is displayed, which indicates a successful ignition on the ignition burner 3. After some time has been ignited, the ignition burner 3 ignites the working burner 4. At least 2 x full cycles of the boiler to adjust the water temperature within 40-60 °.

The advantages of the proposed group of utility models include:

- the possibility of the boiler operating at optimal thermal conditions with equally high efficiency under any load changes both individually and in combination with other similar units;

- low thermal inertia with a wide range of power control;

- effective removal of combustion products without the use of a smoke exhaust;

- optimization of the operating conditions of the heat exchanger due to the uniform distribution of thermal stresses and temperatures over the entire surface of the shortened heat exchanger.

The compact arrangement of all elements of the automatic control system on the panels of the front of the boiler facilitates installation.

The proposed group of utility models provides the creation of a compact, simple in design and reliable in operation, mobile, economical and safe autonomous heating boiler based on domestic materials and modern components.

The claimed heating boiler is available in two sizes: with a heating capacity of 100 kW and 200 kW, with a working pressure of up to 0.4 MPa and a maximum water temperature of 95 ° C leaving the boiler.

Claims (6)

1. The boiler is a heating water-heating boiler, including a vertical casing, in which a heat exchanger chamber with an ignition and working gas burners is placed, a heat exchanger, a flue pipe and an automatic control system, characterized in that the latter provides automatic ignition, maintaining a given temperature of the water leaving the boiler and protection the boiler in emergency situations according to a given program and includes a microprocessor control module, an ignition module, a cross-board, a sensor-relay of maximum gas pressure, a sensor e minimum pressure gas-sensor relays the water pressure, water temperature sensor at the outlet of the boiler, the temperature sensor of the boiler flue gas, the combined gas valve actuator and the high voltage transformer. 2. The boiler according to claim 1, characterized in that the working gas burner is made in the form of a two-stage microflare burner. 3. The boiler according to claim 1, characterized in that the automatic control system is fixed to the panel and located in the casing in the upper part on the front side of the housing. 4. The boiler is a heating water-heating boiler, including a vertical housing, in which a heat exchanger chamber with an ignition and working gas burners is placed, a heat exchanger, a flue pipe and an automation and safety system, characterized in that the latter provides automatic ignition, maintaining a given temperature of the water leaving the boiler and boiler protection in emergency situations according to a given program and includes a microprocessor control module, an ignition module, a cross-board, a maximum gas pressure sensor-relay, a relay-sensor e minimum gas pressure, sensor-relay of maximum water pressure, water temperature sensor at the outlet of the boiler, temperature sensor of the flue gases of the boiler, two parallel combined gas valves with a servo-drive and a high-voltage transformer. 5. The boiler according to claim 4, characterized in that the working gas burner is made in the form of a two-stage microflare burner. 6. The boiler according to claim 4, characterized in that the automatic control system is fixed to the panel and located in the casing in the upper part on the front side of the housing.