Of interest
UTILIZATION OF THE UNIVERSAL BOILER FOR COMBUSTION OF WHOLE BALES OF HAY
Recently, the attractiveness of energy crops for burning has increased namely in the field of agriculture. This mainly involves burning hay harvested from permanent grass stands, especially meadows and pastures.Universal boiler for burning (not only) whole bales of straw
Biomass-fired boilers with outputs ranging from 100 to 1,000 kW are now mostly designed for either burning straw or waste wood.Biomass boiler room
The construction of the biomass-fired boiler plant with a boiler for burning whole bales of straw and energy crops at Step TRUTNOV a.s. was completed and put ...Florcenter Olomouc
Stages I. and II. of building biomass boiler room in Flor center Olomouc have been completed. The boiler room is exceptional in that it burns whole packs of straw...Vacancies
In connection with production expansion, the company will establish workers to the following positions: welder with basic training in accordance with official standards EN 287-1 111 and EN 287-1 135. Also a project engineer to dealing with orders from abroad - language qualifications needed.Map
AUTOMATED EXPANSION, FILLING AND DEGASSING APPLIANCE STEP-TV
Key:
1 – Programmable controller
2 – Solenoid valve
3 – Circulating pump
4 – Filler pump
5 – Backflow valve
6 – Hand valve
7 – Level monitoring
8 – Mechanical bypass valve
9 – Pressure sensor
10 – Filter
11 – Ball stop cock
12 – Flow-off
13 – Ball tap
A – Replenishing
B – Supply pipe
C – Return pipe
The equipment can ensure fully-automated work of heating systems, exchanger plants, cooling and air conditioning systems. The operation of the STEP-TV equipment will avoid a negative impact of air and gases on heating systems. The STEP-TV product line include appliances designed for heating systems where output and volume is low (100 kW) up to large heating plants and systems of a block of flats.
Real pictureBasic features
- Automatic maintaining of constant pressure inclusive replenishing the heating system
- Venting and degassing throughout the operation
- Physical water treatment
- Heating system security
- Programmable microprocessor system
Automatic maintaining of constant pressure inclusive automatic replenishing the heating system
The heating system is replenished automatically from a non-pressure vessel with a pump whenever necessary. If system pressure exceeds a value set in the controller, the water is relieved into the non-pressure vessel via a bypass valve. This feature allows for safe, trouble-free and wireless operation. In case of any leakage it will automatically close water supply into the system following certain periods, and alarm signalling occurs. The fault message can be connected to the control system of the source. In case of lower outputs, where such equipment is more simple (i.e. no pressure vessel and circulating pump supplied), the replenishing and degassing process is controlled by a control system software in set periods.
Venting and degassing throughout the operation
In the STEP-TV appliance, the process runs based on desorption, which means that air and gases are removed from the hot-water system. When the STEP-TV appliance is connected into the system, heating water flows through the system. The heating water in the pressure vessel or in the piping at the point of a pressure sensor that has the same pressure as the air in the system is closed with a valve and backflow valve. If the valve is open, the water pressure is relieved. The connection with the non-pressure vessel reduces working pressure to air pressure, which results in maximum elimination of air and gases from the heating system. The water treated this way is pumped back into the system under corresponding pressure. Remaining air and gases from the problematic parts of the piping is absorbed in the system. The degassing process is modified automatically according to circumstances in the system, and is controlled by automatically selected software.
Physical water treatment
Oxygen and other gases causing system’s air lock as well as oxygen-borne corrosion of materials and resulting damage of boilers, pumps and exchangers are removed from the circulating water. A softening flow filter, which is one of the Step TRUTNOV’s product range, can be added to the STEP-TV appliance and placed before the water outlet (see Note A).
Heating system security
The STEP-TV appliance is safeguarded against exceeding of maximum working pressure limits in compliance with ČSN 06 0830.
Operating unit
a) STEP – The STEP-TV appliance is operated by a programmable controller. The programmable controller is a microprocessor system based on the 80C552 microprocessor, and comprises operating and indicating elements according to type and size of each STEP-TV appliance.
b) Olymp – An automatic device inclusive controlling (supplied by Olymp) accompanied with storage tanks produced by Step TRUTNOV a.s. depending on the size required.
c) Reflex – An automatic device inclusive controlling (supplied by Reflex) accompanied with storage tanks produced by Step TRUTNOV a.s. depending on the size required.
| Type TV | Source output kW | System volume L | Tank volume l | Input DN | Output DN | Water filling DN | Diameter mm |
|---|---|---|---|---|---|---|---|
| TV 01 | up to 100 | up to 1500 | 80 | 25 | Accord. to ČSN 06 0830 čl. 6.5.3 | 15 to 25 | 550 |
| TV 02 | up to 200 | up to 2500 | 110 | 25 | 550 | ||
| TV 03 | up to 300 | up to 4000 | 200 | 25 | 550 | ||
| TV 06 | up to 600 | up to 5000 | 300 | 25 | 550 | ||
| TV 08 | up to 800 | up to 10000 | 400 | 25 | 600 | ||
| TV 1,8 | up to 1850 | up to 14000 | 540 | 25 | 650 | ||
| TV 4 | up to 4500 | up to 25000 | 1000 | 25 | 800 | ||
| TV 4A | up to 4500 | up to 25000 | - | 25 | -
PHONE.: +420 499 407 407
The European Regional Development Fund and the Ministry of Industry and Trade of the Czech Republic support investments in your future.
