Dispenser

An evaporative cooling and water purification system comprising:

• an evaporator having a water inlet for cooling water, a water outlet, a water reservoir, and a water vapor vent that allows water vapor to escape to atmosphere, the evaporator being part of a cooling tower on a commercial building;
• an inline dispenser having a cartridge chamber, an outlet in fluid communication with the water inlet in the evaporator, an inlet in fluid communication with the water outlet of the evaporator and a selector valve for controlling a flow rate of a stream of water flowing through the inline dispenser, such that the inline dispenser is on a recirculation loop in which a line extends from the outlet of the inline dispenser to the water inlet of the evaporator and another line extends from the water outlet of the evaporator to the inlet of the inline dispenser, and a water source configured to deliver fresh water to the recirculation loop upstream from the inline dispenser such that, when periodically adding water to the system, fresh water from the water source flows through the inline dispenser before reaching the evaporator;
• a replaceable cartridge with a dispersant chamber, the replaceable cartridge located in the cartridge chamber of said inline dispenser and having a first bottom extension port mateable with a base port in the inline dispenser and having a second bottom extension port mateable with a further base port in the inline dispenser, the replaceable cartridge having a closed top and a sidewall diverging from said closed top to a bottom portion of said dispersant chamber;
• and
• a batch of cluster inhibiting granular 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) particles located in the dispersant chamber in said replaceable cartridge with at least a portion of said batch of granular BCDMH particles in fluid contact with a stream of water flowing into the first bottom extension port of the replaceable cartridge and out of the second bottom extension port of the replaceable cartridge, such that a BCDMH output rate from the inline dispenser remains substantially linear as water flow rate through the inline dispenser changes, so as to provide for an increase in the flow rate of the stream of water correspondingly increasing a rate of release of BCDMH from the inline dispenser and a decrease in the flow rate of the stream of water therethrough correspondingly decreasing the rate of release of BCDMH from the inline dispenser, wherein the first bottom extension port, the dispersant chamber, and the second bottom extension port are configured such that the stream of water is in contact with BCDMH particles of the batch during movement of the stream of water upwardly into the dispersant chamber, laterally within the dispersant chamber, and downwardly to the second bottom extension port.

A method of ridding a cooling tower water system of harmful organisms, wherein water is periodically added to the cooling tower water system, the method comprising the steps of:

• a dispensing cartridge having downwardly diverging sidewalls that surround a dispersant chamber in which there is a batch of particles comprising 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) particles;
• placing the dispensing cartridge into a dispensing valve having a valve for controlling a flow rate of a stream of water having harmful organisms through the dispensing valve;
• directing the stream of water having harmful organisms therein into a bottom inlet of the dispensing cartridge and into the batch of particles and then out of the dispensing cartridge through a bottom outlet of the dispensing cartridge, wherein the bottom inlet, the dispersant chamber, and the bottom outlet are configured such that the stream of water is in contact with BCDMH particles of the batch during movement of the stream of water upwardly into the dispersant chamber, laterally within the dispersant chamber, and downwardly to the bottom outlet;
• measuring output rate of BCDMH from the dispensing cartridge as a function of the flow rate of the stream of water through the dispenser;
• and
• increasing a size of BCDMH particles in the dispensing cartridge in response to the output rate of BCDMH from the dispensing cartridge being non linear.

A method of uniformly increasing or decreasing BCDMH output in an evaporative cooling and water purification system, wherein water is added to the system on the go, the method comprising:

• directing water into an evaporator having a water inlet for cooling water, a water outlet, a water reservoir, and a water vapor vent from an inline dispenser having a cartridge chamber containing a replaceable cartridge with a dispersant chamber, the water vapor vent allowing water vapor to escape to atmosphere, the evaporator being part of a cooling tower on a commercial building, said replaceable cartridge having a first bottom extension port mateable with a base port in the inline dispenser, a second bottom extension port mateable with a base port in the inline dispenser, a closed top and a sidewall diverging from said closed top to a bottom of said dispersant chamber, the inline dispenser having an outlet in fluid communication with the water inlet of the evaporator, and the inline dispenser having an inlet in fluid communication with the water outlet of the evaporator, such that the inline dispenser is on a recirculation loop in which a line extends from the outlet of the inline dispenser to the water inlet of the evaporator and another line extends from the water outlet of the evaporator to the inlet of the inline dispenser,
• the method comprising operating a water source to deliver fresh water to the recirculation loop upstream from the inline dispenser such that fresh water from the water source flows through the inline dispenser before reaching the evaporator, and the inline dispenser having a selector valve for controlling a flow rate of a stream of water flowing through a first batch of cluster inhibiting granular particles comprising 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) particles located in a lower portion of the dispersant chamber in said replaceable cartridge, with said batch of cluster inhibiting granular particles located in the lower portion of the dispersant chamber being in fluid contact with the stream of water flowing into the first bottom extension port of the replaceable cartridge and out of the second bottom extension port of the replaceable cartridge, such that a BCDMH output rate from the inline dispenser remains substantially linear as water flow rate through the inline dispenser changes, so that an increase in the flow rate of the stream of water causes a corresponding increase in a rate of release of BCDMH from the inline dispenser and a decrease in the flow rate of the stream of water causes a corresponding decrease in the rate of release of BCDMH from the inline dispenser, wherein the first bottom extension port, the dispersant chamber, and the second bottom extension port are configured such that the stream of water is in contact with BCDMH particles of said batch during movement of the stream of water upwardly into the dispersant chamber, laterally within the dispersant chamber, and downwardly to the second bottom extension port, and wherein said operating the water source to deliver fresh water is done periodically to replace water evaporated from said evaporator.