JPH04115254U - Heat exchanger - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to prevent cooling water from leaking from the flange surface that attaches the water chamber to the body. [Structure] A liquid gasket is provided on the flange surface where the water chamber is attached to the body so that it can be press-fitted from the outside.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for heat exchangers such as condensers and cooling water coolers used in power generation plants, for example. Regarding converters.

0002

[Conventional technology]

FIG. 2 is a structural explanatory diagram of a conventional condenser used in power plants. In the figure A large number of cooling pipes are installed in the body 01 of the condenser and are supported by a tube plate 03. On the outside of the tube plate 03, there is a water chamber 0 whose inner surface is lined with neoprene 06. 4 is attached to the flange 07 of the body part 01 through a soft gasket 05 such as cloth-filled natural rubber. It is attached with bolts 09 to ensure sealing. Flange 0 of body 01 A seat backing 08 is interposed between the tube plate 7 and the tube plate 03.

0003

[Problem that the idea aims to solve]

In the conventional heat exchanger such as a condenser as described above, the water chamber 04 is Neoprene lining 06 is also applied to the lunge surface, and a soft gasket is also applied. Since it is tightened with bolt 09 through bolt 05, it can be tightened evenly by controlling the tightening torque. It is difficult to tighten properly, and cooling water may leak from the flange surface due to embrittlement of the tightening equipment. There is a risk of Especially in the case of large condensers, once a leak occurs, bolt 09 It is very difficult to stop the leak by retightening, so replace the soft gasket 05. In order to do so, it is necessary to remove the heavy water chamber 04, which requires a huge amount of construction time and cost. Ru.

0004

[Means to solve the problem]

The heat exchanger according to the present invention aims to solve the above problems, and has a water chamber attached to the body. The structure includes a liquid gasket that can be press-fitted from the outside on the flange surface. Features.

[0005]

[Effect]

That is, in the heat exchanger according to the present invention, the water chamber is attached to the flange surface that is attached to the body. A liquid gasket is provided that can be press-fitted from the outside, and the liquid gasket is attached to the flange surface. By changing the pressure at which the fitting is press-fitted, the necessary sealing performance can be maintained all the time around the flange surface. given equally across the board.

[0006]

【Example】

FIG. 1 is a structural explanatory diagram of a condenser according to an embodiment of the present invention. In the figure, the actual The condenser according to the example is used in power generation plants, etc., and as shown in the figure. A large number of cooling pipes 2 are installed in the body 1 and are supported by a tube plate 3. On the outside, there is a water chamber 4 with neoprene lining 6 on the inner surface and flange surface. It is attached to the flange 7 of the body 1 with bolts 9. Flange 7 of body 1 and A sheet packing 8 is interposed between the tube plate 3 and the tube plate 3. On the flange surface of water chamber 4 Groove 10 into which a liquid gasket is press-fitted instead of a soft gasket in a conventional condenser is carved, and the liquid gasket injection port 10a communicating with this groove 10 is connected to the water chamber 4. It is bored through the flange 4a from the outside. There is a plug at the inlet of the injection port 10a. Lug 10b is attached. These inlet 10a and plug 10b are connected to groove 1. They are arranged at appropriate intervals over the entire circumference of 0. Also, groove 1 for liquid gasket 0 may also be provided double or triple depending on the pressure of the cooling water in the water chamber 4.

[0007] A liquid gasket is press-fitted into the groove 10 through the injection port 10a, and the tube plate 3 and the water chamber 4 are sealed. Provides a seal between the flange surface and the flange surface. After press-fitting the liquid gasket, use the plug 10b. Keep it closed. This ensures even pressure and tight sealing over the entire flange surface. Sealing performance is ensured. In addition, the injection pressure of the liquid gasket is determined by the pressure of the cooling water in the water chamber 4. By adjusting the liquid gasket and replenishing it appropriately, the bolt 9 can be tightened. The flange surface can be tightened regularly as needed, such as during periodic inspections, without strict torque control. Provides sufficient sealing performance. In addition, such a groove 10, injection port 10a, plug Similar effects can be obtained by providing 10b in another heat exchanger such as a cooling water cooler.

[0008]

[Effect of the idea]

The heat exchanger according to the present invention is constructed as described above, and the necessary sealing performance is maintained at all times. The chamber is evenly distributed over the entire circumference of the flange surface that attaches to the body, so the tightener Even if the material becomes brittle, cooling water is prevented from leaking from the flange surface.

[Brief explanation of drawings]

FIG. 1(a) is a front view of a condenser according to an embodiment of the present invention, and FIG. 1(b) is a sectional view of a main part thereof.

FIG. 2 is a sectional view of a main part of a conventional condenser.

[Explanation of symbols]

1 Torso 2 Cooling pipe 3 Tube plate 4 Water chamber 4a Water chamber flange 6 Neoprene lining 7 Body flange 8 Sheet packing 9 bolts 10 groove 10a Inlet 10b brag

Claims (1)

[Scope of utility model registration request] 1. A heat exchanger comprising a liquid gasket that is press-fittable from the outside on a flange surface on which a water chamber is attached to a body.