Sell Carbon dioxide filling machine GTM-B

GTM-B Type filler for CO2 fire extinguisher is a special equipment for filling MT*-MT7 portable extinguishers with CO2 extinguishants automatically. It makes a comprehensive use of electronic, electric, and mechanical techniques and renders the whole filling processes safe, reliable, simple in operation, accurate in filling quantity and highly efficient.

1. Error Table for Filling Time and Quantity of the Filler

 

2. Working Temperature and Pressure Parameters of the Thermostat of the Filler

A. Thermal uniform temperature is controlled in the range of *8℃–*5℃ with a pressure of ***0Mpa, heater power of 6KW and voltage of **0V.

B. Cold uniform temperature is controlled in the range of –5℃—5℃with a pressure of≤7Mpa and power source voltage of **0V.

 

 

GTM-B Type filler for CO2 fire extinguisher is chiefly composed of filling console, thermal thermostat, cold thermostat and electronic scale.

1. Filling console is used for controlling the quantity of filling the cylinder with CO2 extinguishant. On it are mounted XMTA temperature controller, T***6 type electronic scale indictor, power source voltage indicator, GT solenoid valve and control panel for electric appliances.

Heater terminal (No.1 in Figure 1)—for heating the gas source cylinder

Gas source cylinder (No.2 in Figure 1)—changing the fire extinguisher

Sensor (No.3 in Figure 1)—for sensing the heating temperature 

II character-type fixture (No.4 in Figure 1)—interface to the gas source

Gas outlet (No.5 in Figure 1)—the gas outlet of gas in the cold thermostat, connected to the console

Exit valve (No.6 in Figure 1)—opening or closing the gas outlet

Gas inlet A (No.7 in Figure 1) and Gas inlet B (No.8 in Figure 1) for connecting to gas source

Inlet valve A (No.9 in Figure 1) and Inlet valve B (No.*0 in Figure 1)—opening or closing the gas inlet

Gas source pressure meter B (No.*1 in Figure 1) and Gas source pressure meter A (No.*5 in Figure 1)—for display of gas source pressure

Mixer (No.*2 in Figure 1)—making the temperature of cold thermostat uniform

Operating indication lamp (No.*3 in Figure 1)—showing the refrigerator is in operation

Power source indication lamp (No.*4 in Figure 1)—showing the refrigerator is energized

SJP*1 Temperature Controller (No.*6 in Figure 1)—intelligent regulation of temperature

Charge pressure indicator (No.*7 in Figure 1)—showing the charge pressure

Power source switch (No.*8 in Figure 1)—controlling the start and suspension of refrigerating system

T***6 indicator (No.*9 in Figure 1)—showing the quantity filled in the cylinder

Control panel for electric appliances (No.*0 in Figure 1)—for operating and controlling the completion of all jobs.

Charge pipe (No.*1 in Figure 1)—for connecting the console of filling and the cylinder valve (No.*2 in Figure 1)—controlling the outlet and inlet of cylinder gas.

II character-type fixture (No.*3 in Figure 1)—for clipping the filled cylinder

Cylinder (No.*4 in Figure 1)—the filed cylinder

Stand of electronic scale (No.*5 in Figure 1)—for sensing the weight of cylinder

Compressor (No.*6 in Figure 1)—completing the refrigeration operation

2. Thermal thermostat is composed of a water bath, a support and a heater for thermal uniform temperature treatment of CO2 extinguishant to meet the requirement of filling technology.

3. Cold thermostat is composed of box body, stainless steel liner, evaporator, refrigerating compressor, temperature controller and pressure indicator. It can reduce the temperature of CO2 fire extinguishant by mechanical refrigeration, which will meet the requirement of filling technology.

  

1. Control switch   2. Operating lamp 3. XMTA temperature controller 4. Heating off   5. Indication lamp 6. Indication lamp for heating suspension   7. Heating on   8. Indication lamp for heating   9. Indication lamp for power source   *0. Filling off *1. Indicator lamp for filling suspension   *2. Filling on   *3. Indicator lamp for filling   *4. Power source voltage indicator  

 

  

A. Re-check the equipment connected to the pipeline and circuit as required in an all-around way.

B. Put the gas source cylinder (No.2 in Figure 1) into the water bath in the thermal thermostat and add clear water (not overflow out of the bath).

C. The sensor of temperature controller (No.3 in Figure 1) is put into water bath corner perpendicularly without any damage and the terminal not immersed in the water.

D. The liner of cold thermostat is filled with clear water (not overflow out of the inlet of the coil pipe and no articles should be placed in the water tank)

E. The protective wire is firmly linked to the shell of the equipment.

F. When the equipment is switched on (3 phase four-wire power supply **0V/**0V) (No.1 in Figure 2), the indicator lamp shines, showing the equipment is energized.

G. After energization, the temperature controller (No.3 in Figure 2) is set to the required value. Then the “heating” button is pressed (No.7 in Figure 2). The water in the water bath is preheated (Preheating time depends upon environmental temperature and water temperature).

H. After opening the cylinder valve of heating gas source (No.4 in Figure 1), filling in the first sequence is conducted.

I. After turning on the power switch (No.*8 in Figure 1) of the cold thermostat, the temperature controller (No.*6 in Figure 1) is set to the required temperature so that the pressure of cold thermostat will be ≤7Mpa and the temperature in the range of –5℃to 5℃ (temperature controller may be regulated). Specific operating procedure for temperature controller is as follows:

1. Temperature display: (adopting intelligent temperature controller)

After energization of temperature controller, actual temperature measurement will be shown.

2. Set of parameters:

(1) Enter the set state: In order to prevent faulty operation and idler’s play, the 【Set-up】key (No.*6 in Figure 1) must be pressed thrice continuously to be in the set state.

(2) When the temperature controller (No. *6 in Figure 1) has entered the setup state, the temperature display value is stored and the lower set value is shown (“Lower Limit” indicator light flashes). At this time “plus” key or “Minus” key can be pressed to change the parameter till the requirement is met. Press again 【Set-up】 key (No. *6 in Figure 1), the lower set value is stored and the differential temperature is displayed (“Differential temperature” indicator light flashes). Likewise, press the “plus” and “Minus” keys to change the parameter (Lower limit value plus differential temperature makes upper limit).

(3) Withdrawal from the set state: if no key is pressed within *6 seconds, the temperature controller (No. *6 in Figure 1) will withdraw from the set state of itself. The set value is stored and the display window shows the temperature measurement as before.

3. Automatic Operation

(1)    The temperature controller will operate automatically as soon as it is energized, displaying the cue symbol “A”. The compressor won’t be started off until a delay time of three minutes has passed. Then the decimal point in the late-choice nixie tube will blink for waiting.

(2)    Automatic temperature control: whether the relay that controls the compressor will respond depends upon the lower limit of temperature and the differential temperature set to achieve the objective of controlling the compressor for refrigeration. When refrigeration is carried out, the “Refrigeration” indicator light will be on.

(3)    Withdrawal from the automatic operating state: only after the power supply is cut off, can the withdrawal be conducted.

Note: only after a delay time of three minutes can the compressor be started again. Then the decimal point in the late-choice nixie tube will blink.

I. After turning on the switch of refrigerating gas source valve (No.9 or No.*0 in Figure 1), the filling in the second sequence is conducted.

J. The cylinder to bee filled (No. *4) is mounted on the fixture and tightened.

K. Measurement set-up of the electronic scale:

The weighing sensor is connected to the indicator. A five-core and nine-hole socket shall be used for the sensor. The indicator is energized. Nothing is placed on the stand. The electronic scale enters the self-inspection state and the instrument catches “ 0.**0” automatically. Then desirable weight is set. Specific operating procedure: Press 【on/off】key (No.8 in Figure 3) in the weight indicator. Then the instrument will display successively “***-”, “****-CE”, “UT*3.*3”, “ ******0”, “ ******7”, “*****-”, “ dc×××”. In a while, “ 0.**0” will appear, indicating the automatic return-to–zero of electronic scale (see to it that before return-to-zero any key on the instrument should not be pressed to prevent disorder in the sequence).then press 【Net/Gross/set-up】key (No.1 in Figure 3) and “ ***-“ will be displayed. Press 【↑↓/peak Value】key (No.2 in Figure 3) and “ d×××”will be displayed. Then press 【Net/Gross/Set-up】key (No.1 in Figure 3) and “ t ××××××” appears. Go on pressing 【Net/Gross/Set-up】 key (No.1 in Figure 3) and “ e××××××” appears. Continue to press 【Net/Gross/Set-up】 key (No.1 in Figure 3) and “ n ××××××” appears. Keep on pressing 【Net/Gross/Set-up】 key (No.1 in Figure 3) and “p ××××××” will appear. When “ L ××××××” appears and the displayed value is different from the required one, re-entry is necessary. First of all, press 【↑↓/peak Value】key (No.2 in Figure 3) rapidly and continuously until the value on the indicator is cleared to “ 0.**0”. (Then, “ **9” will be shown automatically in cycle at the last figure). Just enter the required value in this way. For example, “Entry of fixed value 3.**3”. When “3” appears at the last figure, press 【↑↓/peak Value】key quickly (No.2 in Figure 3) for confirmation. When “5” appears at the last figure, press 【↑↓/peak Value】key (No.2 in Figure 3) rapidly for confirmation. When “ 3” appears at the last figure, press【Net/Gross/Set-up】key (No.1 in Figure 3) quickly. Then the indicator will display “ H ××××××”. This value is formulated before delivery and no other value needs entering. (Note: H value must be greater than L value. If not, the equipment won’t stop automatically when filled to the required weight. H value should be entered as L value). Finally, press again【Net/Gross/Set-up】key (Figure *****1) and “ 0.**0” will be displayed. Then the set-up of weight parameter is completed as the required value has been put in the indicator. The equipment has a memory function and no re-setup is necessary for filling extinguishants of the same weight. The cylinder to be filled is placed on the stand of electronic scale. Then press【shelling】 key ( Figure 3—6) or【Reset】 key. When the indicator displays “ 0.**0”, the shelling comes to an end.

L. When you press the “ charge” button (Figure ***2), the filing in the third sequence can be carried out. When the filling quantity of extinguishants reaches the set weight, GT solenoid valve will be closed of itself and the filling comes to an end.

In the filing process of CO2extinguishants, the filing is done at a higher speed initially because the steel cylinder is full of extinguishants and the pressure in it rises rapidly with a great driving force under the action of the thermal thermostat. With the increase of accumulated filling weight, the dosage in the steel cylinder is reduced correspondingly. At constant temperature, the pressure in the cylinder will also fall. As a result, the filling speed becomes slower and slower. In order to raise work efficiency and utilization of extinguishant source, a secondary filling may be used.

When the filling speed becomes slower and the weight of the filled fire extinguisher shows no more increase, this means the inadequacy of gas source. Then the valve with lower inlet pressure should be closed. Another valve with higher inlet pressure should be opened to supplement the weight of the fire extinguisher. When the filling reaches the desired weight, the controlling system will be closed of itself and filling comes to an end.