Modular closed cooling tower

Abstract

A modularized closed cooling tower is composed of at least one module unit. Each module unit comprises a water supply system, a heat exchange system, a spraying system and a supporting system. The water supply system comprises a tower bottom water tank, a water pump and a water supply pipeline. The heat exchange system is provided with a heat exchange coil, a heat exchange chamber and an axial flow fan. The spraying system is provided with a spraying pipeline and spraying nozzles which are horizontally connected in series through the spraying pipeline. The supporting system is provided with a supporting frame and an air inlet grille, and the heat exchange coil is positioned below the spraying nozzles and above the air inlet grille through the supporting frame. The water pump pumps water from the tower bottom water tank to the spray nozzles through the water supply pipeline, and the water falls into the tower bottom water tank after the heat exchange coil is subjected to water cooling; and after air cooling is carried out on the heat exchange coil pipe, air upwards enters the heat exchange chamber and is upwards exhausted through the axial flow fan. The modularized closed cooling tower is compact in structure, small in occupied area, convenient to realize split type transportation and higher in field assembly efficiency, so that the early-stage transportation cost and the later-stage installation and maintenance cost are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cooling equipment. BACKGROUND

[0002] With the development of economy and technology, industrialization accelerates, and the requirement of water resource utilization is also higher and higher, and the application of closed cooling tower technology in industrial field is more and more widely. At present, the common closed cooling tower is mostly small in shape, on the one hand, although the cooling tower quantity can be increased to meet the larger refrigeration demand in industry, but the composite structure leads to large floor area, and the cost increases while the resource utilization rate decreases; on the other hand, the cooling tower is increased by increasing heat exchange coil, although the medium heat exchange demand can be met, but the transportation and installation cost is improved in early stage, and the maintenance and repair are difficult in later stage, and unreasonable design also leads to water leakage in operation. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a large closed cooling tower which can be conveniently installed.

[0004] The modular closed cooling tower according to the utility model is composed of at least one module unit, and each module unit comprises:

[0005] a water supply system having a tower bottom water tank, a water pump and a water supply pipeline;

[0006] a heat exchange system having a heat exchange coil, a heat exchange chamber and an axial flow fan;

[0007] a spraying system having a spraying pipeline and a plurality of spraying nozzles horizontally connected in series through the spraying pipeline; and

[0008] a support system having a support frame and an air inlet grille located outside the support frame, the heat exchange coil of the heat exchange system is positioned below the plurality of spraying nozzles of the spraying system and above the air inlet grille through the support frame,

[0009] wherein the water pump pumps the cooling water from the tower bottom water tank to the spraying pipeline and each spraying nozzle of the spraying system through the water supply pipeline, the cooling water sprayed out of each spraying nozzle is directly dropped into the tower bottom water tank after water cooling of the heat exchange coil of the heat exchange system; the air entering from the air inlet grille of the support system is directly discharged upwards through the axial flow fan after air cooling of the heat exchange coil of the heat exchange system.

[0010] According to one preferred embodiment of the modular closed cooling tower of the utility model, the heat exchange system of each module unit is composed of two heat exchange assemblies which are left-right symmetrical and can be assembled together, each heat exchange assembly forms two semicircular air outlets and is divided into two heat exchange compartments by a partition, the two heat exchange compartments of one heat exchange assembly are respectively joined together with the two heat exchange compartments of the other heat exchange assembly to form a first heat exchange chamber and a second heat exchange chamber, the two semicircular air outlets of one heat exchange assembly are respectively joined together with the two semicircular air outlets of the other heat exchange assembly to form a first circular air outlet of the first heat exchange chamber and a second circular air outlet of the second heat exchange chamber, and an axial flow fan is arranged at the first circular air outlet and the second circular air outlet respectively.

[0011] According to another preferred embodiment of the modular closed cooling tower of the utility model, the spraying system further has a water baffle strip for preventing the cooling water sprayed out through the spraying nozzles from splashing upward.

[0012] According to still another preferred embodiment of the modular closed cooling tower of the utility model, the supporting system further has a waterproof fence inside the supporting frame to prevent the cooling water sprayed out through the spraying nozzles from escaping laterally through the air inlet grating.

[0013] According to still another preferred embodiment of the modular closed cooling tower of the utility model, the opening degree of the air inlet grating is adjustable.

[0014] The modular closed cooling tower of the utility model can be composed of multiple module units, and the supporting frames of the supporting systems of the module units are connected to each other quickly and detachably through bolts.

[0015] The modular closed cooling tower of the utility model can be quickly installed in a modularized manner to obtain a large closed cooling tower which meets the larger refrigeration demand in industry.

[0016] In addition, in the closed cooling tower of the utility model, the flow directions of air and spraying water are opposite, the cooling medium in the heat exchange coil in the tower is circulated in a closed mode and does not directly contact with air, and the heat exchange coil exchanges heat and mass with the sucked air and the spraying circulating water, which not only ensures that the water quality is not polluted, but also achieves the water saving purpose of recycling industrial water. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of one module unit of the modular closed cooling tower of the utility model.

[0018] Figure 2The utility model discloses a combination schematic diagram of the heat exchange coil of the module unit and the spraying system.

[0019] Figure 3 The utility model discloses a structure schematic diagram of the heat exchange system of the module unit.

[0020] Figure 4 The utility model discloses a structure schematic diagram of the modular closed cooling tower of eight module units. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings.

[0022] Figure 1 The utility model discloses a structure schematic diagram of a module unit of the modular closed cooling tower. Figure 1 As shown, the module unit generally includes a water supply system 1, a heat exchange system 2, a spraying system 3 and a support system 4. The water supply system 1 has a water pump 11, a tower bottom water tank 12 and a water supply pipeline 13.

[0023] Figure 3 The utility model discloses a structure schematic diagram of the heat exchange system of the module unit. As shown, Figure 3 the heat exchange system 2 is composed of two first heat exchange components 21 and second heat exchange components 23 which are left-right symmetrical and can be assembled together. Each heat exchange component forms two semicircular air outlets through the box plate 24 on the frame and is divided into two heat exchange compartments by the partition plate 25. The two heat exchange compartments of the first heat exchange component 21 are respectively joined together with the two heat exchange compartments of the second heat exchange component 23 to form a first heat exchange chamber and a second heat exchange chamber; the two semicircular air outlets of the first heat exchange component are respectively joined together with the two semicircular air outlets of the second heat exchange component 23 to form a first circular air outlet of the first heat exchange chamber and a second circular air outlet of the second heat exchange chamber.

[0024] The frame top of each heat exchange component is fixedly provided with a fan bracket 26, and an axial flow fan 28 is fastened and installed at the first circular air outlet and the second circular air outlet through the bolt 241, as shown in Figure 1 and Figure 3 The frame bottom of each heat exchange component is fixedly provided with a serpentine heat exchange coil 22. The heat exchange coil 22 is located directly above the tower bottom water tank 12.

[0025] In addition, the frame top of each heat exchange component is also provided with a mounting lifting lug 27 to facilitate hoisting the first heat exchange component 21 and the second heat exchange component 23 together.

[0026] Figure 2 The utility model discloses a combination schematic diagram of the heat exchange coil of the module unit and the spraying system. As shown, Figure 1 and 2As shown, the spray system 3 has a spray pipeline 33 and a plurality of spray nozzles 34 horizontally connected in series through the spray pipeline 33. The spray system 3 shown is also provided with a water baffle strip 32 fixed above the spray nozzles 34 by the water baffle strip pressing plate 31, for preventing the cooling water sprayed out through the spray nozzles 34 from splashing upward.

[0027] Referring to Figure 1 and Figure 2 , the support system 4 has a support frame 41, an air inlet grille 43 located outside the support frame 41, and a waterproof fence 42 located inside the support frame 41. The heat exchange coil 22 is positioned below the spray nozzles 34 and above the air inlet grille 43 by the support frame 41. The waterproof fence 42 is used to prevent the cooling water sprayed out through the spray nozzles 34 from escaping laterally through the air inlet grille 43. The opening degree of the air inlet grille 43 is adjustable to control the air inlet amount.

[0028] When the cooling tower is running, the water pump 11 pumps the cooling water from the tower bottom tank 12 to the spray pipeline 33 and each spray nozzle 34 of the spray system 3 through the water supply pipeline 13, and the cooling water sprayed out through each spray nozzle 34 is directly dropped into the tower bottom tank 12 after water cooling of the heat exchange coil 22 of the heat exchange system 2. The air entering from the air inlet grille 43 of the support system 4 is directly discharged upward through the axial flow fan 28 after air cooling of the heat exchange coil 22.

[0029] Figure 4 It is a structural schematic view of the modular closed cooling tower assembled by eight module units. The support frames 41 of the support systems 4 of the respective module units are connected to each other by bolts for quick detachable connection.

Claims

1. A modular closed cooling tower characterized in that, consists of at least one module unit, each module unit comprises: a water supply system having a tower bottom water tank, a water pump and a water supply pipeline; a heat exchange system having heat exchange coils, a heat exchange chamber and an axial flow fan; a spraying system having a spraying pipeline and a plurality of spraying nozzles horizontally connected in series through the spraying pipeline; and a support system having a support frame and an air inlet grille located outside the support frame, the heat exchange coils of the heat exchange system are positioned below the plurality of spraying nozzles of the spraying system and above the air inlet grille through the support frame, wherein the water pump pumps cooling water from the tower bottom water tank through the water supply pipeline to the spraying pipeline and each spraying nozzle of the spraying system, the cooling water sprayed out of each spraying nozzle is directly dropped into the tower bottom water tank after water cooling of the heat exchange coils of the heat exchange system, and the air entering from the air inlet grille of the support system is directly discharged upwards through the axial flow fan after air cooling of the heat exchange coils of the heat exchange system.

2. The modular closed cooling tower of claim 1, wherein, The heat exchange system of each module unit is composed of two heat exchange assemblies which are structurally symmetrical and can be assembled together, each heat exchange assembly forms two semicircular air outlets and is divided into two heat exchange compartments by a partition, the two heat exchange compartments of one heat exchange assembly are respectively joined together with the two heat exchange compartments of the other heat exchange assembly to form a first heat exchange chamber and a second heat exchange chamber, the two semicircular air outlets of one heat exchange assembly are respectively joined together with the two semicircular air outlets of the other heat exchange assembly to form a first circular air outlet of the first heat exchange chamber and a second circular air outlet of the second heat exchange chamber, and an axial flow fan is respectively arranged at the first circular air outlet and the second circular air outlet.

3. The modular closed cooling tower of claim 1, wherein, The spraying system further has a water baffle strip to prevent the cooling water sprayed out of the spraying nozzles from splashing upwards.

4. The modular closed loop cooling tower of claim 1, wherein, The support system further has a water-proof fence located inside the support frame to prevent the cooling water sprayed out of the spraying nozzles from escaping laterally through the air inlet grille.

5. The modular closed loop cooling tower of claim 1, wherein, The opening degree of the air inlet grille is adjustable.

6. The modular closed cooling tower according to any one of claims 1-5, wherein, The plurality of module units are connected to each other through the support frames of the support systems of the module units by bolts in a quick detachable manner. The plurality of module units are connected to each other through the support frames of the support systems of the module units by bolts in a quick detachable manner.

Images