CN100582639C

CN100582639C - Anti-corrosion spacer ring type flange of plate type heat exchanger

Info

Publication number: CN100582639C
Application number: CN200810146229A
Authority: CN
Inventors: 林革
Original assignee: Lhe Co ltd
Current assignee: Lhe Co ltd
Priority date: 2007-08-22
Filing date: 2008-08-12
Publication date: 2010-01-20
Anticipated expiration: 2028-08-12
Also published as: JP4763023B2; KR20090020015A; KR100922133B1; JP2009047408A; CN101373124A

Abstract

The invention relates to a Distance Ring flange used for a heat exchanger, mounted on a flow-in hole or a discharge hole of a plate heat exchanger and combined with a sensor, capable of preventing erosion caused by fluid passing through the internal of the Distance Ring flange used for a plate heat exchanger, and saving cost and enhancing performance, comprising a metal piece, with an internal made from metal materials and having a hollow cylinder shape, a plurality of sensor insert holes being arranged on the lateral side; a sealing piece made from corrosion resistant rubber materials or synthetic resin, capable of covering the inner column face, the lateral face of the metal piece, and the periphery of the sensor insert hole. The common metal piece used for the Distance Ring flange used for the plate heat exchanger in the invention is not exposed in a corrosion atmosphere, and the lower side of the sensor insert hole is sealed so as to avoid erosion effectively.

Description

The anticorrosive spacer ring type flange of plate heat exchanger

Technical field

The present invention relates to a kind of plate heat exchanger spacer ring type flange, be combined in the inflow entrance or the floss hole of plate heat exchanger and dispose pressure and temperature sensor monitoring fluid state, especially a kind of natural rubber, synthetic rubber or synthetic resin system seal of using is wrapped in by structure with the inner cylinder of the flange of materials such as carbon-steel parts making and the plate heat exchanger spacer ring type flange of side.

Background technology

Plate heat exchanger is a kind ofly to contact pipe arrangement or plate with cryogen and the heat of high temperature fluid is passed to cryogen by high temperature fluid, thereby can cool off or add the equipment of hot fluid.

Above-mentioned plate heat exchanger not only detects the temperature or the pressure of two fluids that flow into or discharge and regulates flow, also need to control fluid temperature (F.T.), therefore inflow entrance or the floss hole at heat exchanger is equipped with sensor shown in Figure 1 (C: temperature sensor, D: pressure sensor).

As shown in Figure 2, spacer ring 10 is arranged between the inflow entrance 20 or floss hole and fluid piping 30 of plate heat exchanger, above-mentioned inflow entrance (floss hole) uses bolt 40 to combine with nut 50 with fluid piping.

As shown in Figure 3, existing spacer ring is flat cylinder annular, and its side has a plurality of through holes 12 and inserts sensor by above-mentioned through hole 12.

Therefore spacer ring with said structure is easy to be corroded owing to contact with the inner fluid of flowing through.Especially in the purposes of needs contact seawater such as the heat exchanger that is applicable to the boats and ships fresh water generator,, the salinity in the seawater reduced durability owing to causing corrosion.Therefore existing spacer ring uses stainless steel or brass to make in order to prevent corrosion.

When using stainless steel to make as previously mentioned,, can't prevent corrosion phenomenon fully, and high stainless steel and other non-ferrous material industry of price also improved cost of material though can prevent corrosion to a certain extent.

And in use, owing to the local corrosion of contact with sea water face makes sealing surface (leak) phenomenon appears leaking, and therefore need locking regularly, not only cause the inconvenience in the use, also may cause bigger problem when ignoring this leakage phenomenon.

Summary of the invention

In order to solve corrosion and the too high problem of manufacturing cost that current material can't prevent spacer ring type flange fully, the purpose of this invention is to provide a kind of with low cost and can prevent fully that the plate heat exchanger that corrodes is with different material (synthetic rubber and synthetic resin material) spacer ring type flange.

To achieve these goals, plate heat exchanger of the present invention comprises with spacer ring: metalwork, and use metal material to make, the flat drum with inner hollow, the side is formed with a plurality of sensor patchholes; And seal, by possessing elasticity and not made by the synthetic rubber of seawater or aqueous corrosion, natural rubber or synthetic resin material, the cylindrical shape of central authorities and closely contact the inner cylinder of described metalwork, the outside has corresponding to the protuberance of described sensor patchhole and inserts described sensor patchhole, both sides of the edge are warpage and closely contact the side of described metalwork outwardly, and the inner fluid that can prevent to flow through contacts described metalwork.

Preferably, the tail end of described protuberance extends and covers the edge of described sensor patchhole to left and right direction.

Plate heat exchanger of the present invention with said structure uses rubber or synthetic resin system seal to prevent that the corrosive fluid of seawater and so on from directly contacting the metalwork that is made of metal material with spacer ring type flange, prevents the phenomenon that plate heat exchanger is corroded with spacer ring type flange effectively and strengthens durability.

The present invention can use low-cost structure to make the plate heat exchanger spacer ring type flange with materials such as carbon steels, has reduced manufacturing cost effectively.

Description of drawings

Fig. 1 is the front view that the heat exchanger behind a plurality of sensors has been installed;

Fig. 2 is the partial sectional view of the anticorrosive spacer ring type flange of existing plate heat exchanger when being installed in heat exchanger;

Fig. 3 is the cutaway view of the anticorrosive spacer ring type flange of existing plate heat exchanger;

Fig. 4 is the cutaway view of the anticorrosive spacer ring type flange of plate heat exchanger of the present invention;

Fig. 5 is another cutaway view of the anticorrosive spacer ring type flange of plate heat exchanger shown in Figure 4;

Fig. 6 is the metalwork cutaway view of the anticorrosive spacer ring type flange of plate heat exchanger of the present invention;

Fig. 7 is another cutaway view of metalwork shown in Figure 6;

Fig. 8 is the seal cutaway view of the anticorrosive spacer ring type flange of plate heat exchanger of the present invention;

Fig. 9 is another cutaway view of seal shown in Figure 8;

Figure 10 is the side view after the anticorrosive spacer ring type flange of plate heat exchanger of the present invention is installed to heat exchanger;

Figure 11 is the assembly drawing during sensor installation on the anticorrosive spacer ring type flange of plate heat exchanger of the present invention.

Description of reference numerals

100: plate heat exchanger spacer ring type flange 110: metalwork

112: sensor patchhole 114: the bolt combined hole

120: seal 122: protuberance

130: conjunction

The specific embodiment

Below in conjunction with accompanying drawing plate heat exchanger of the present invention is described further with spacer ring type flange.

Fig. 4 is the cutaway view of plate heat exchanger of the present invention with spacer ring type flange, and Fig. 5 is heat exchanger shown in Figure 4 another cutaway view with spacer ring type flange.

As shown in the figure, the plate heat exchanger of the embodiment of the invention comprises metalwork 110 and seal 120 with spacer ring type flange 100.

Metalwork 110 at first is described.Fig. 6 is the cutaway view of metalwork 110, and Fig. 7 is another cutaway view of metalwork 110 shown in Figure 6.Above-mentioned metalwork 110 uses structure to make of the material of carbon steel and so on and has Fig. 6 and flat drum shown in Figure 7, also has a plurality of sensor patchholes 112 that extend through inner cylinder from outer cylinder.

It is poroid that described sensor patchhole 112 is stairstepping, and the outside broad of metalwork 110, inboard are narrower.Have bolt combined hole 114 around the sensor patchhole 112 of metalwork 110 outer cylinders, described bolt combined hole 114 can inserting bolt and combined sensor.

The following describes seal 120.Fig. 8 is the cutaway view of seal 120, and Fig. 9 is another cutaway view of seal shown in Figure 8.Above-mentioned seal 120 uses to be made by the natural rubber of the foreign object of seawater and so on corrosion, synthetic rubber or synthetic resin, has as Fig. 8 and drum shown in Figure 9, closely contacts the inner cylinder of described metalwork 110 as shown in Figure 5.At this moment, the both sides of the edge of described seal 120 form the two sides that annular shape and warpage cover described metalwork 110 outwardly.

The outer cylinder of described seal 120 has a plurality of protuberances 122 corresponding to described sensor patchhole 112.Described protuberance 122 is inserted into described sensor patchhole 112 and closely contacts the inner cylinder of described sensor patchhole 112, the central authorities of described protuberance 122 are run through, and its edge is flexed into annular and closely contacts the end difference of described sensor patchhole 112 as shown in Figure 4.The effect of warpage tail end is to make described sensor or conjunction (130 among Figure 11) push the tail end of protuberance 122 in case the fluid stopping body leaks into the outside when inserting sensor.

Below in conjunction with accompanying drawing effect and the effect of plate heat exchanger of the present invention with spacer ring type flange is described further.

At first, the carbon steel machining is become the shape of metalwork 110, synthetic rubber is then made seal 120 in the mode of injection molding, make the protuberance 122 of above-mentioned seal 120 insert the sensor patchhole 112 of metalworks 110 and adjusted, then seal 120 is attached to the inboard of metalwork 110.

Be inserted into as shown in figure 10 between the fluid piping 30 of the inflow entrance 20 of heat exchanger and incoming fluid with spacer ring type flange 100 through the plate heat exchanger of above-mentioned manufacturing process, described inflow entrance 20 combines by bolts and nuts (not shown) with fluid piping 30.At described sensor patchhole 112 inner pressure sensor and the temperature sensors of inserting, make the tail end of sensor 200 be positioned at the inboard of plate heat exchanger then, use bolt to be fixed then with instrumented (instrument type) flange 100.

The present invention does not directly insert sensor 200 in the sensor patchhole 112, but earlier the conjunction 130 with shaft shoulder is inserted in the sensor patchhole as shown in figure 11, be attached to sensor 200 on the described conjunction 130 and use bolt 132 fastening in addition, make the tail end of conjunction push down the tail end of seal and finish sealing.

Then, when starting heat exchanger, seawater will enter by the inflow entrance of fluid piping, the temperature of the seawater of inflow and pressure then by described pressure sensor and temperature sensor detects and with detected value be transferred to control heat exchanger controlling mechanism (not shown).

Because seal has covered contacting of seawater and flange, so can prevent effectively that carbon steel system flange is by the situation of seawater corrosion.

Claims

1. the anticorrosive spacer ring type flange of a plate heat exchanger comprises:

Metalwork uses metal to make, and the flat drum with inner hollow, this metalwork also have a plurality of sensor patchholes that extend through inner cylinder from outer cylinder;

Seal, by possessing elasticity and not made by the synthetic rubber of seawater corrosion, natural rubber or synthetic resin material, cylindrical shape and closely contact the inner cylinder of described metalwork, the outer cylinder of sealing part has the protuberance corresponding to described sensor patchhole, this protuberance inserts described sensor patchhole and closely contacts the inner cylinder of this sensor patchhole, and the central authorities of this protuberance are run through, the both sides of the edge of described seal are warpage and closely contact the both ends of the surface of described metalwork outwardly, in case the fluid of fluid stopping through inside contacts described metalwork.

2. the anticorrosive spacer ring type flange of plate heat exchanger according to claim 1 is characterized in that, the tail end of described protuberance ringwise and cover the edge of described sensor patchhole behind the warpage.