CN105605327A - Fluoroplastic heat exchange pipe separating and fixing pipe clamp - Google Patents

Abstract

Provided is a fluoroplastic heat exchange pipe separating and fixing pipe clamp. Fixed ends are arranged at the two ends of a pipe penetrating body which is sequentially provided with a plurality of pipe penetrating holes side by side. Fluoroplastic heat exchange pipes are precisely matched with the pipe penetrating holes. Positioning holes are formed in the two fixed ends. The center lines of the positioning holes are perpendicular to those of the pipe penetrating holes. The distance between the two positioning holes is equal to that between installing pipe clamp sleeve rods in a heat exchanger. The pipe penetrating body is installed on the installing pipe clamp sleeve rods in the heat exchanger in sequence in a sleeving mode through the positioning holes in the fixed ends. Due to the fact that the pipe clamp is made from high-strength and good-flexibility materials, the deformation amount is small under the action of flowing smoke, the fluoroplastic heat exchange pipes can be evenly distributed in the heat exchanger in sequence, a heat exchange space is utilized to the maximum extent, the heat exchanger has the largest heat exchange area, and it is guaranteed that the fluoroplastic heat exchanger can be efficiently used for a lasting time. Besides, if the pipe clamp is damaged, only a damaged single pipe clamp body needs to be replaced, overall replacement is not needed, and a lot of cost is saved.

Description

A kind of fluoroplastics heat exchanger tube is separated Duct fixing clamp

Technical field:

The present invention relates to teflon heat exchanger fixture, relate in particular to a kind of pipe clamp for heat exchanger tube in fixing teflon heat exchanger.

Background technology:

At present before China's boiler low-temperature fume waste heat recycling system is generally arranged on desulfurization or after desulfurization. Install before desulfurization and be mainly used to reduce the flue-gas temperature that enters desulfurizing tower, the waste heat in can recovered flue gas, can reduce again the water consumption of desulfurizing tower, reaches the object of water saving. When chimney of electric plant anti-corrosion measure puts in place, low-temperature flue gas waste heat retracting device also can be installed after desulfurizing tower, be mainly used in saturated clean flue gas to continue cooling, reclaim a large amount of condensed waters, and reach the effect of receiving water and dedusting demist. Existing low-temperature flue gas waste heat recycling system is in heat exchanger, to be covered with metallic heat exchanging tube, can enter deduster by after 150 DEG C of left and right flue gas cool-downs to 90 DEG C. But after power plant is investigated on the spot, find that metallic heat exchanging tube is not corrosion-resistant, instantly increasingly serious in environmental pollution, especially in the corrosivity industry such as chemical industry, medicine, pickling, the service life of metallic heat exchanging tube is short, use after 2 years and start to continue to occur that leakage problem, main cause are wear and leakage and corrosion leakage, when serious, also can produce security incident; Metallic recuperator is along with the continuity of service time, and the schmutzband thickness of its heat-exchanging tube bundle increases gradually and heat transfer coefficient is reduced gradually. In order effectively to address the leakage concern, fluorine plastic tube heat exchanger arises at the historic moment, due to the chemical property stabilizer pole of fluoroplastics, high temperature resistant, corrosion resistance is excellent, and fluoroplastics have outstanding not viscosity energy and self-cleaning property, compare with metal tube, the outside deposition forming of fluorine plastic tube can significantly reduce, and a small amount of precipitation forming also can be moulded in heat exchanger tube and under flow of flue gas effect, restrain vertically and eliminated fast and up hill and dale with frequent shake of radial direction because of fluorine, has thoroughly solved low-temperature flue gas seriously corroded, dust wear problem. Fluorine plastic tube has many advantages compared with metal tube, has perfectly solved the shortcoming of metallic heat exchanging tube. Save time and cost in large quantities, improved the overall production capacity of power plant. After application fluorine plastic tube heat exchanger, not only can improve the whole operational efficiency 1-1.5% of factory, reduce coal consumption, when improving power plant efficiency, because flue-gas temperature reduces, reduce the water consumption of desulfurization desuperheat, reach the object of energy-saving and emission-reduction.

Compare traditional metal tube heat exchanger, fluoroplastics are that the boiler low-temperature fume heat recovery technology of main material has excellent corrosion resistance, power plant's low-level (stack-gas) economizer that this system is not installed only may operate on acid dew point, and waste heat fails fully to reclaim and cause obvious thermal waste. Adopt this technology of fluoroplastics, can below acid dew point, reclaim heat, maximally utilise recyclable waste heat, and the output that increases electric power (increasing approximately 1%).

Therefore,, due to the characteristic of fluoroplastics material itself, compared with conventional metals heat exchange of heat pipe, this technology has following characteristic:

1. under strong acid environment, there is outstanding anti-corrosion property, can use for a long time.

2. under different engineering application states, to flue gas composition, without particular/special requirement, applicability is strong.

3. under different engineering application states, without particular/special requirement, be there is not to corrosion condition in wall temperature and acid dew point.

4. material self has automatically cleaning characteristic, anti-be stained with glutinous, easy cleaning.

5. cost economic under long-term operation, rate of return on investment is high.

But the capacity of heat transmission of fluorine plastic tube is not as metal tube, therefore, in the situation that some process conditions allows manufacturer can reduce as far as possible fluorine plastic tube pipe thickness, shorten caliber and improve heat transfer coefficient, increase heat exchange area and make up simultaneously the deficiency of heat exchange efficiency with a large amount of fluorine plastic tubes. But fluorine plastic tube rigidity deficiency, under the thermal currents such as flue gas impact, very easily produce shake and be out of shape, cause fluorine plastic tube not only easily to damage, and distortion can cause the integral layout of fluorine plastic tube destroyed, affect heat transfer efficiency, so fix the distribution of fluorine plastic tube in heat exchanger with specific device. A kind of heat-exchanging tube bundle network for location for fluoroplastics heat exchanger tube flue gas heat-exchange unit is disclosed in Chinese patent CN202562355U, it has solved the fixation problem of fluorine plastic tube at heat transfer space to a certain extent, but this device is comparatively complicated loaded down with trivial details, once and have local damage just must carry out integral replacing, later maintenance cost is high, low in economic efficiency. The fixation problem that how effectively to solve easily fluoroplastics heat exchanger tube becomes the problem that those skilled in the art must face.

Summary of the invention:

The object of this invention is to provide a kind of fluoroplastics heat exchanger tube and separate Duct fixing clamp, it can accurately separate fluoroplastics heat exchanger tube fixing, has solved the problem on deformation that fluoroplastics heat exchanger tube causes due to the not enough shake of rigidity.

A kind of fluoroplastics heat exchanger tube is separated Duct fixing clamp, it is characterized in that: comprise poling body, two ends at poling body are provided with stiff end, on poling body, be arranged side by side successively some polings hole, between adjacent two poling hole outer surfaces, be provided with reinforced joint, fluoroplastics heat exchanger tube and poling hole precision-fit, on two stiff ends, be provided with locating hole, the center line of described locating hole is mutually vertical with the center line in poling hole, the aperture of locating hole is greater than the diameter of mounting pipe chuck bar in heat exchanger, distance in distance between two locating holes and heat exchanger between mounting pipe chuck bar equates, the locating hole order of poling body by stiff end is sleeved in heat exchanger on mounting pipe chuck bar.

Separate Duct fixing clamp owing to using these fluoroplastics heat exchanger tube, pipe clamp adopts the good material of intensity high-flexibility, under the effect of the flue gas that flows, deflection is very little, fluoroplastics heat exchanger tube can be evenly distributed in heat exchanger in order, make heat exchanger tube that shake distortion can not occur yet, heat transfer space obtains maximum using, and heat exchanger has maximum heat exchange area, has ensured the use of teflon heat exchanger energy high-efficient and lasting. Only need to change the single pipe clamp damaging and if pipe clamp damages, without integral replacing, saved a large amount of costs.

Brief description of the drawings:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the A-A cutaway view in Fig. 1;

Fig. 4 is the B-B cutaway view in Fig. 2;

In figure: 1-poling body; 2-stiff end; 3-reinforced joint; 4-mounting pipe chuck bar; 5-partition ring; 11-poling hole; 21-locating hole.

Detailed description of the invention:

Below in conjunction with brief description of the drawings the specific embodiment of the present invention:

A kind of fluoroplastics heat exchanger tube is separated Duct fixing clamp, as Figure 1-4, comprise poling body 1, be provided with stiff end 2 at the two ends of poling body 1, on poling body 1, be arranged side by side successively some polings hole 11, between adjacent two poling hole 11 outer surfaces, be provided with reinforced joint 3, fluoroplastics heat exchanger tube and poling hole 11 precision-fit, on two stiff ends 2, be provided with locating hole 21, the center line of described locating hole 21 is mutually vertical with the center line in poling hole 11, the aperture of locating hole 21 is greater than the diameter of mounting pipe chuck bar in heat exchanger, distance in distance between two locating holes 21 and heat exchanger between mounting pipe chuck bar equates, poling body 1 is sleeved on the loop bar that pipe clamp is installed in heat exchanger by locating hole 21 orders of stiff end 2.

Using method of the present invention:

Fluoroplastics heat exchanger tube one end is passed in the poling hole 11 of a poling body 1 successively, the other end of fluoroplastics heat exchanger tube is successively through in the poling hole 11 of another poling body 1, make the distribution that takes the shape of the letter U of fluoroplastics heat exchanger tube, one end of fluoroplastics heat exchanger tube is water inlet end, the other end is water side, the poling body 1 that fluoroplastics heat exchanger tube is housed is fixedly set in heat exchanger on mounting pipe chuck bar 4 successively by locating hole 21, and be set with partition ring 5 on the loop bar between the stiff end 2 of two adjacent pipe clamps, make heat exchanger tube evenly spaced apart in heat exchanger, high-temperature flue gas enters in heat exchanger from the inlet end of heat exchanger, water inlet end and the cooling water of fluoroplastics heat exchanger tube interlink, cooling water constantly enters from water inlet end, high-temperature flue gas in heat exchanger carries out cooling, the high-temperature water of cooling complete flue gas continuously outflows from the water side of fluoroplastics heat exchanger tube, cooling complete low-temperature flue gas is discharged from the outlet side of heat exchanger.

Claims (1)

1. fluoroplastics heat exchanger tube is separated a Duct fixing clamp, it is characterized in that: comprise poling body (1), at polingThe two ends of body (1) are provided with stiff end (2), on poling body (1), have been arranged side by side successively some polingsHole (11), is provided with reinforced joint (3), fluoroplastics between the outer surface of adjacent two poling holes (11)Heat exchanger tube and poling hole (11) precision-fit are provided with locating hole (21) on two stiff ends (2),The center line of described locating hole (21) is mutually vertical with the center line of poling hole (11), locating hole (21)Aperture be greater than the diameter of mounting pipe chuck bar in heat exchanger, the distance between two locating holes (21) with changeDistance in hot device between mounting pipe chuck bar is equal, and poling body (1) is by the locating hole of stiff end (2)(21) order is sleeved on the interior mounting pipe chuck bar (4) of heat exchanger.