Drift measurement system

Claim 2

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample, said cyclone separator means including centrifugal blower means having a blower discharge outlet associated therewith; d. said isokinetic sampling control having a first total pressure measuring probe positioned adjacent said sample collecting means within the exhaust air and a second total pressure measuring probe positioned adjacent said blower discharge outlet so as to permit control of said blower for balancing the total pressure of the exhaust air at said sampling point with the total pressure at said blower discharge outlet; and e. container means for receiving said separated liquid or solid particles.

Claim 3

Apparatus in accordance with claim 1 wherein said isokinetic sampling control means further includes manometer means associated with said first and second probes to detect imbalance between the total pressures measured by said first and second probes.

Claim 4

Apparatus in accordance with claim 2 wherein said blower means includes speed control means for varying the speed of said blower means and thereby balancing the total pressures measured by said first and second probes.

Claim 5

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample coLlecting means positioned for collecting a test sample from a point in the fan stack exhaust air, said sample collecting means including a hollow sample collecting member having an inlet opening associated therewith, a direction vane means is provided to indicate when the plane passing through said inlet opening is perpendicular to the direction of the sample point air flow; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample; and d. container means for receiving said separated liquid or solid particles.

Claim 6

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample coLlecting means positioned for collecting a test sample from a point in the fan stack exhaust air, said sample collecting means including a hollow sample collecting member having an inlet opening associated therewith, a direction vane means is provided to indicate when the plane passing through said inlet opening is perpendicular to the direction of the sample point air flow; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample; and d. container means for receiving said separated liquid or solid particles.

Claim 7

Apparatus in accordance with claim 4 wherein said sample collecting member may be rotated about a substantially horizontal axis so as to permit rotation of said inlet opening until said plane passing therethrough is perpendicular to the direction of the sample point air flow.

Claim 8

Apparatus for quantitatively measuring the drift emitted from the fan stock of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample; d. said sample collecting means and said cyclone separator means being positioned upon mono-rail means which extends across said fan stack in a manner which permits them to traverse said fan stack and be selectively positioned therealong; and e. container means for receiving said separated liquid or solid particles.

Claim 9

Apparatus for quantitatively measuring the drift emitted from the fan stock of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample; d. said sample collecting means and said cyclone separator means being positioned upon mono-rail means which extends across said fan stack in a manner which permits them to traverse said fan stack and be selectively positioned therealong; and e. container means for receiving said separated liquid or solid particles.

Claim 10

Apparatus in accordance with claim 6 wherein said sample collecting means includes a hollow sample collecting member having an inlet opening associated therewith, and said mono-rail means being rotatable about a substantially horizontal axis so as to permit positioning of the plane passing through said inlet opening perpendicular to the direction of the sample point air flow.

Claim 11

Apparatus in accordance with claim 7 wherein the respective ends of said mono-rail means are releasably secured to said fan stack by connecting means which permits adjustment of the length of said mono-rails means to accommodate fan stacks of varying diameters.

Claim 12

Apparatus in accordance with claim 6 wherein said container means includes a funnel shaped member positioned therein, said member having an upwardly extending tube passing therethrough such that the upper end thereof extends into said cyclone separator means and the lower end thereof extends below said member into said container means, so as to minimize evaporation of said received particles.

Claim 13

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample; and d. container means secured to said cyclone separator means immediately therebelow and in fluid communication therewith for receiving the downward flow of said separated liquid or solid particles.

Claim 14

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air; b. isokinetic sampling control means in communication with said sample collecting means for establishing the velocity of said collected test sample at substantially equal to the natural velocity of the exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample; and d. container means secured to said cyclone separator means immediately therebelow and in fluid communication therewith for receiving the downward flow of said separated liquid or solid particles.

Claim 15

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air, said sample collecting means including a hollow sample collecting mEmber having an inlet opening associated therewith, said inlet opening being positioned such that a plane passing therethrough is perpendicular to the direction of the sample point exhaust air flow; b. isokinetic sampling control means in communication with said sample collecting means for establishing that the velocity of said collected test sample is substantially equal to the natural velocity of the sample point exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample, said cyclone separator means including centrifugal blower means having a blower discharge outlet associated therewith; d. said isokinetic sampling control means including a first total pressure measuring probe positioned adjacent said sample collecting member inlet and a second total pressure measuring probe positioned adjacent said blower discharge outlet, said first and second probes having manometer means associated therewith to detect imbalance between the total pressures measured thereby; e. speed control means associated with said blower means for varying the speed of said blower means and to balance the total pressures measured by said first and second probes; f. direction vane means associated with said sample collecting member for indicating when said plane passing through said inlet opening is perpendicular to the direction of sample point air flow; and g. container means associated with said cyclone separator means for receiving said separated liquid or solid particles.

Claim 16

Apparatus for quantitatively measuring the drift emitted from the fan stack of a cooling tower, comprising: a. sample collecting means positioned for collecting a test sample from a point in the fan stack exhaust air, said sample collecting means including a hollow sample collecting mEmber having an inlet opening associated therewith, said inlet opening being positioned such that a plane passing therethrough is perpendicular to the direction of the sample point exhaust air flow; b. isokinetic sampling control means in communication with said sample collecting means for establishing that the velocity of said collected test sample is substantially equal to the natural velocity of the sample point exhaust air; c. cyclone separator means for separating the liquid or solid particles from said test sample, said cyclone separator means including centrifugal blower means having a blower discharge outlet associated therewith; d. said isokinetic sampling control means including a first total pressure measuring probe positioned adjacent said sample collecting member inlet and a second total pressure measuring probe positioned adjacent said blower discharge outlet, said first and second probes having manometer means associated therewith to detect imbalance between the total pressures measured thereby; e. speed control means associated with said blower means for varying the speed of said blower means and to balance the total pressures measured by said first and second probes; f. direction vane means associated with said sample collecting member for indicating when said plane passing through said inlet opening is perpendicular to the direction of sample point air flow; and g. container means associated with said cyclone separator means for receiving said separated liquid or solid particles.