CN201221914Y - Coil pipe unit for transverse flow closed type cooling tower - Google Patents

Abstract

The utility model relates to a coiled pipe unit that is used for a transverse-flow closing-type cooling tower, which comprises a coil pipe, wherein, the coil pipe consists of a straight pipe and a U-shaped elbow. The utility model is characterized in that the coil pipe also comprises an h-shaped conversion head; h-shaped conversion heads are used to form an upper coil pipe and a lower coil pipe which are connected with each other in parallel and have equal distance and equal resistance, and the gap of the straight pipes in the coil pipe is fixed by a positioning sheet. An inlet and an outlet of the coiled pipe unit are made to be a pipe-socket end and a nut, and the position of the inlet and the outlet end ports can be adjusted by a corrugated pipe. The coiled pipe unit is convenient to be installed and replaced, and has compact structure, and favors the gas discharging and the water drainage; moreover, the coiled pipe unit can be freely assembled with a coiled pipe unit or a spraying stuffing, so as to improve the heat radiating effect of the unit pipe area.

Description

The coil pipe unit that is used for transverse flow enclosed cooling tower

Technical field

The utility model relates to a kind of cooler or cooling tower, the coil pipe unit in especially a kind of transverse flow enclosed cooling tower or crossing current evaporative cooling (condensation) device.

Background technology

Closed cooling tower or cooling (condensation) device is to be widely used in the refrigerating industry cycle fluid with the equipment to air discharging used heat, and is closely related with the energy-saving and water-saving that presses for solution in the national economy and social development.

Cooler with the air cooling circulating water is commonly referred to cooling tower.The water that is cooled is limited in and conducts heat in the coil pipe and the outer closed cooling tower that is called that the shower water auxiliary heat dissipation is arranged of pipe.When be cooled in the pipe for other working medium of non-water the time, often be called devaporizer, what working medium had a phase transformation in cooling procedure then is called evaporative condenser, though these three kinds of equipment because the difference of cooling object has different titles, its principle is identical with structure.In this kind equipment, shower water flows in vertical direction, and air is flowing near horizontal direction, and the horizontal separately coil pipe bundle of plunderring, and then is called the crossing current form.

General transverse flow enclosed cooling tower has inside and outside two groups of vertical headers, and the coil pipe bundle of some parallel connections is arranged between two groups of collectors.Traditional method of attachment is welding between coil pipe bundle and collector, in case leakage is arranged, it is very inconvenient to keep in repair.The form of being threaded of using instead is arranged now, but install and discharge water, aspect such as exhaust is still waiting to improve.

Summary of the invention

The utility model will provide a kind of transverse flow enclosed cooling tower that is used for, install and change conveniently, compact conformation, help exitting, the coil pipe unit of draining, this coil pipe unit can also be with coil pipe unit and coil pipe unit or coil pipe unit and packing independent assortment, to improve the radiating effect of unit tube area.

For realizing the purpose of this utility model, the technical scheme of employing is as follows:

A kind of coil pipe unit that is used for transverse flow enclosed cooling tower, comprise the coil pipe that constitutes by many straight tubes and a plurality of return bend, be characterized in: also comprise two h shape conversion heads, two-way becomes the h shape conversion head parallel connection of the coil pipe of stagger arrangement up and down, and etc. resistances such as journeys, the spacing of each straight tube is fixed by spacer in the coil pipe.

The in-out end of coil pipe unit is that belled tube-end adds the nut form, and is threaded with the vertical headers employing of transverse flow enclosed cooling tower; The bellows piece that also has one section fine-tuning angle and length between described in-out end and the h shape conversion head.

The port of coil pipe unit entrance point makes in the length range of vertical headers at coil pipe unit from the distance of return bend outer rim, the port of the coil pipe unit port of export is concordant with the return bend outer rim, make vertical headers outside the length range of coil pipe unit, wherein, entrance point is positioned at the air side of upper strata coil pipe, and the port of export is positioned at the inlet side of lower floor's coil pipe.

Coil pipe unit and horizontal plane have a low-angle that has a down dip to outlet side from inlet side.

The utility model design feature:

1. in described coil pipe unit, import and export and adopt belled tube-end to add the nut form, be connected with the vertical headers of transverse flow enclosed cooling tower, and after importing and exporting pipeline section, also have one section fine-tuning angle of bellows and length.

2. in described coil pipe unit,, constitute the straight length that two-way becomes stagger arrangement, form the coil pipe in parallel of the resistances such as journeys such as two-way up and down of turning back back and forth again by return bend by two h shape conversion heads, and the spacing of fixing each straight tube by spacer.

3. in described coil pipe unit, the port of entrance point makes in the length range of vertical headers at coil pipe unit from the distance of return bend outer rim, the port of the coil pipe unit port of export is concordant with the return bend outer rim, make vertical headers outside the length range of coil pipe unit, wherein, entrance point is positioned at the air side of upper strata coil pipe, and the port of export is positioned at the inlet side of lower floor's coil pipe.

4. in described coil pipe unit, coil pipe unit and horizontal plane have a low-angle that has a down dip to outlet side from inlet side, make the highest point of entrance point at coil pipe unit, the port of export is at the lowest part of coil pipe unit, and from entrance point always descending along journey to the port of export.

The beneficial effects of the utility model are:

Install and change conveniently, compact conformation helps venting, draining, can also be with coil pipe unit and coil pipe unit or coil pipe unit and packing independent assortment, to improve the radiating effect of unit tube area.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 be between structure of the present utility model with the schematic diagram of one of filler combination form;

Fig. 3 be between structure of the present utility model with two schematic diagram of filler combination form;

Fig. 4 be between structure of the present utility model with three schematic diagram of filler combination form.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model and embodiment are further described.

As shown in drawings: a kind of coil pipe unit that is used for transverse flow enclosed cooling tower, coil pipe is made of many straight tubes 4 and a plurality of return bend 6, by h shape conversion head 9 and h shape conversion head 3, the coil pipe that two-way is up and down become stagger arrangement is with h shape conversion head (9,3) parallel connection, and etc. resistances such as journeys, the spacing of each straight tube 4 is fixing by spacer 5 in the coil pipe.The import 7 of coil pipe unit and outlet 1 add the nut form for refrigeration pipe belled tube-end commonly used, can adopt with outlet vertical headers 10 with the import vertical headers 11 of transverse flow enclosed cooling tower to be threaded.This structure adopts being threaded of coil pipe unit and collector, install change convenient, and under the condition of the outer windage permission of pipe, (B when I accomplishes that tube center distance L is the triangular arrangement of external diameter of pipe D twice _Min=1.732D), still can import and export between joint and adjacent disc pipe unit import and export joint and leave enough spanner working spaces at coil pipe unit, at this moment coil pipe unit is imported and exported the minimum centers-distance L of joint and adjacent disc pipe unit import and export joint _MinShould be 2B _Min, therefore accomplish the compact conformation (see figure 2).One section bellows piece 8 is arranged behind the import pipeline section 7, and one section bellows piece 2 arranged behind the outlet pipe section 1, fine-tuning angle and length are passed through under the fixing condition of spacer 5 and tower body coil pipe unit, and coil pipe unit is imported and exported joint and docked and tighten very convenient with the screw thread of collector 11 and collector 10.

The entrance point 7 of coil pipe unit is positioned at the air side of upper strata coil pipe, and the port of export 1 is positioned at the inlet side of lower floor's coil pipe, makes coil pipe unit and horizontal plane form a low-angle α who has a down dip to outlet side from inlet side and (sees that Fig. 2～Fig. 4), this angle is recommended as 4～7 °.So just guaranteed the highest point of entrance point 7 at coil pipe unit, the port of export 1 is at the lowest part of coil pipe unit, and from entrance point 7 always descending to the port of export 1 along journey, can be when blank pipe fills working medium thereby convenient from the abundant exhaust of top vent valve of inlet header 11, because the existence of inner air tube will reduce the radiating effect of intraductal working medium; Also make things convenient for simultaneously when inactive from the complete emptying intraductal working medium of the bottom blow valve of outlet header 10, in order to avoid bursting by freezing coil pipe in the winter time.

Zu He another benefit is like this, resistances such as journey such as the coil pipe of two tunnel parallel connections of this coil pipe unit just in time is, be that the flow through distance of every road coil pipe and elbow number average of intraductal working medium equates, then on-way resistance and local resistance also equate, therefore the assignment of traffic of each coil pipe of flowing through also is impartial, helps balanced heat radiation.

Bolt hole is left at the two ends of this coil pipe unit spacer 5, can make coil pipe unit be well secured in the framework vertical rod of tower body Stability Analysis of Structures.

In addition, the entrance point 7 of coil pipe unit is shorter than the port of export 1, make inlet header 11 in the length range of coil pipe unit, and outlet header 10 when changing coil pipe unit, moves to outlet side from inlet side outside the length range of coil pipe unit, move to the inlet side from the air side in other words, because outlet header 10 is outside the length range of coil pipe unit, as long as lay down the framework vertical rod that is used for fixing spacer 5 on the tower body, coil pipe unit just can successfully shift out or move into.

This coil pipe unit not only can be a plurality of up and down stack form the coil pipe groups, and can resemble Fig. 2～Fig. 4 with the different combining form of packing 12 formations, with the radiating effect of raising unit tube area.13 is the air intake district among the figure, plays uniform air flow and prevents that shower water from splashing away from air inlet; 14 is water collection device among the figure, for preventing that air-flow from carrying shower water and being extracted out outside the tower by blower fan.

Need to prove that at last Fig. 1 is embodiment to the flow process number of coil pipe unit shown in Figure 4 and the number of coil pipe unit stack, is not feature of the present utility model.

Claims (4)

1. coil pipe unit that is used for transverse flow enclosed cooling tower, comprise the coil pipe that constitutes by straight tube (4) and return bend (6), it is characterized in that, also comprise h shape conversion head (9,3), up and down the two-way coil pipe that becomes stagger arrangement with h shape conversion head (9,3) parallel connection, and etc. resistances such as journeys, the spacing of each straight tube (4) is fixing by spacer (5) in the coil pipe.

2. the coil pipe unit that is used for transverse flow enclosed cooling tower according to claim 1, it is characterized in that the in-out end of described coil pipe unit (7,1) adds the nut form for belled tube-end, and adopt with the vertical headers (11,10) of transverse flow enclosed cooling tower and to be threaded; The bellows piece (2,8) that also has one section fine-tuning angle and length between described in-out end (7,1) and the h shape conversion head (3,9).

3. the coil pipe unit that is used for transverse flow enclosed cooling tower according to claim 1, it is characterized in that, the port of described coil pipe unit entrance point (7) makes in the length range of vertical headers (11) at coil pipe unit from the distance of return bend (6) outer rim, the port of the described coil pipe unit port of export (1) is concordant with return bend (6) outer rim, make vertical headers (10) outside the length range of coil pipe unit, wherein, entrance point (7) is positioned at the air side of upper strata coil pipe, and the port of export (1) is positioned at the inlet side of lower floor's coil pipe.

4. the coil pipe unit that is used for transverse flow enclosed cooling tower according to claim 1 is characterized in that, described coil pipe unit and horizontal plane have a low-angle that has a down dip to outlet side from inlet side.

Images