JPS5845497A - Heat exchanger - Google Patents

Abstract

PURPOSE:To enable to stop the leakage of a fluid due to a crack or a hole by a method wherein the ascending of the level of a heat medium liquid in a sealed vessel is detected to stop the supply of the fluid automtically. CONSTITUTION:When the crack or the hole is produced in exchanging sections 2, 3, and the level of the heat medium liquid is ascended from the normal level a1 to the set level a2 by the leakage of the liquid through the crack or the hole, a level detector 5 detects it and the supply of the liquid to both heat exchanging sections 2, 3 is stopped automatically, thereby stopping the leakage of the liquid through the hole or the like automatically. Accordngly, production of the crack or the hole at the heat exchanging sections 2, 3 is detected in an early stage and the leakage of the liquid through the crack or the hole may be stopped in the early stage.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a #Il heat exchange section that heats and boils a heat medium liquid sealed in a closed container through indirect heat exchange with a heating fluid, and also includes A heat exchanger comprising a second heat exchange section 1 for condensing and liquefying the generated steam in a steam chamber by indirect heat exchange with a low-temperature heated fluid, and configured to transfer heat from a heating fluid to a low-temperature heated fluid. Regarding.

Kabe-ru heat exchangers have the disadvantages of conventional shell-and-tube heat exchangers.If cracks or holes occur in the heat exchanger due to corrosion, etc., the heat exchanger will leak through the cracks or holes. The disadvantage is that both fluids mix.

According to K, it was developed to maintain good heat transfer performance from the heating fluid to the heated fluid. Fi, #11. Even if cracks or holes occur in any of the second heat exchange parts, in order to quickly stop fluid leakage into the sealed container through these cracks or holes, the cracks or holes should be removed as soon as possible. It is important to discover the situation accurately and reliably.

In view of such actual circumstances, the present invention has been developed in accordance with the first aspect. Even if cracks or holes occur in any of the second heat exchange parts, the liquid level of the heat transfer liquid in the closed container will rise due to the fluid flowing through the cracks or holes. In the spring of 2017, we developed a simple structure that allows for early detection of the cracks and holes, and also allows for the early detection of cracks and holes.

The purpose is to make it possible to self-help stop further fluid leakage through the tortoise folds and holes by making effective use of self-discovery of holes.

The heat exchanger according to the invention is of the inscription lII
A device is provided for detecting that the level of the heat medium liquid in the sealed container has risen above a set level, and in response to a previous detection of the liquid level detecting device.

A mechanism is provided for automatically stopping fluid supply to the first heat exchange section, the second heat exchange section, or both.

Wholesale, 1st. Even if cracks or holes occur in any of the second heat exchange parts, the fluid will leak into the sealed container through the cracks or holes, and the liquid level of the heat transfer medium in the sealed container will rise. By effectively utilizing the fact that the heating medium liquid level has risen above the set liquid level, by providing a device that detects when the heating medium liquid level rises above the set liquid level, it is possible to use the heating medium liquid as a medium with a simple structure that requires only one detection device. , 1st. Even if cracks or holes occur in any of the second heat exchange parts.

You can detect this early on your own. Furthermore, as described in fII, cracks and holes in the III replacement part can be detected by the liquid level detection device, making effective use of this.

By providing a mechanism that stops the fluid supply to the heat exchange section in conjunction with the detection operation of the liquid level detection device, fluid leakage through cracks and holes generated in the heat exchange section can be stopped automatically. From this, cracks occur when cracks or holes occur in the heat exchanger.

Premature further leakage of fluid through the holes.

And it can be stopped in *English.

Embodiment 1 of the present invention will be described below with reference to the drawings. The first heat exchanger section (1) heats and boils a heat medium liquid sealed in a closed container (1) by indirect heat exchange with a heating liquid. εInsert into the liquid reservoir (1m) in the airtight container (1),
@tj The steam generated in the steam room (IB) connected to the sealed container ill is used for hot water supply, etc.

A second heat exchange section (3) for 11' condensation is inserted into the vapor chamber (IB) through indirect heat exchange with the low-temperature heated liquid to transfer heat from the heating liquid to the low-temperature heated liquid. - In a heat exchanger that is configured with a mechanism (details will be described later) that automatically maintains the internal pressure of the front ε sealed container fi+ below atmospheric pressure, the sealed container # (11) A device that detects when the heat medium liquid level has risen to a set liquid level (~ or higher) that is slightly higher than the normal liquid level (61t)
A mechanism (6) is provided which automatically stops the liquid supply to the heat exchangers #f21 and +3+ in response to the previous detection of the 2°i detection position +Il.

The internal pressure IF + maintenance mechanism 141Fi, the steam chamber (
A pressure detection device (7) detects when the internal pressure of the iml) becomes equal to or higher than atmospheric pressure, and a pressure detection device (7) detects when the internal pressure of the liquid reservoir (1mm) becomes equal to or higher than the temperature that causes the vapor pressure to become atmospheric pressure. A temperature detection device 11) for detecting rain is provided, and in response to the detection operation of any of these rain detection devices +71 and +81, both the heat exchange portions (2).

(3) Fluid supply path (-), output and fluid extraction path Q
ll, (IIK interposed flow rate adjustment valve (13, (1-・
・Control - control! 111! il is provided.

The liquid supply self-help stop mechanism (ε!) controls l pieces of the internal pressure automatic WIIJII11 standby mechanism (4) described in III in response to the detection previous operation of the liquid level detection device (3), and the flow rate adjustment valve (1). It is configured to move u@φ to close.

Also, said control! ! ＠ is configured to generate a warning iron amount such as a buzzer or lamp in response to the previous detection operation of the lIJ liquid bacteria liquid level detection device. 0, the heating liquid is
It is an antifreeze or anti-corrosion liquid additive.

In the above #/1 configuration, if cracks or holes occur due to the first heat exchanger section (!) or the second heat exchanger section (!) or the second heat exchanger section (+1) due to corrosion, etc., the cracks and The liquid leaks from the hole, and the heat medium liquid level rises from the normal liquid level (~ to the set liquid level (~K), and the liquid level detection device (6) detects this and replaces both sides 41! + , (The liquid supply to 8+ is automatically stopped, and the leakage of liquid from the cracks and other parts is automatically stopped. Therefore, the set liquid level 2 to 1 is reduced to 1 normal liquid level 1.
Set the heat exchanger section slightly higher than
! +, (8) It is possible to detect early the occurrence of cracks or holes, and to quickly stop the leakage of the famous liquid through the cracks or holes.

In addition, in the above embodiment, even if either the heating fluid or the heated fluid is gas, the gas side heat exchange 8ft +2) or (3) K cracks or holes. When a crack occurs, the internal pressure of the steam chamber (IB) rises above atmospheric pressure due to gas leakage from the cracks and holes.
The controller (1) closes the flow source regulating valves (13, (141, . . .) in response to the previous detection operation of the pressure construction device (7),
In addition, by configuring the notification device rIL [161 to be activated, it is possible to detect cracks and holes marked with # and to stop gas leakage at an early stage.

[Brief explanation of the drawing]

Fg@h is a schematic vertical sectional view illustrating an embodiment of a heat exchanger according to the present invention. (1)... Interstitial container, (ri... First heat exchange IB, (11)... Steam chamber, (b)...
...Liquid level detection device, (S)...Second heat exchanger part, (@1...Fluid supply self-stop mechanism, aS.
...Notification device. Patent] Director-General 2. Name of the invention Heat exchanger 4 Agent drawing - 7. Contents of amendment (1) The drawing is corrected as shown in the attached sheet. (2) “The said controller il+” on the secret/da line of the second page of the specification
is corrected to ``The control number is 0.'' (3) Correct ``Illustrate an embodiment of 1 implementation in lines 2 to J of 4M/page collection'' to ``Illustrate an example t'jVC. & Corrected attached document list 1 copy of drawings.''

Claims (1)

[Claims] ■ First heat exchanger 5 (2) for heating and boiling the hot wire liquid sealed in the closed container (1) by indirect heat exchange with the heating fluid.
At the same time, a heat exchanger is provided to condense and liquefy the generated steam in the steam chamber (IB) connected to the closed container ill by indirect heat exchange with the low-temperature heated fluid. A heat exchanger configured to transfer heat to a heating fluid is provided with a device (6) for detecting that the liquid level of the heat medium in the closed container (1) has risen to a set liquid level of 1 or more. and 4, in response to the detection operation of this liquid level detection device (ship),
A heat exchanger characterized by a heat exchanger equipped with a heat exchanger section or both of them (phantom, mechanism 1- for self-help stopping fluid supply to (S)). ■ The heat exchanger according to claim 0, wherein the fluid supply self-stopping mechanism (the button is equipped with a notification device (to)); ■ The heating fluid is an antifreeze liquid or a corrosion prevention liquid additive liquid. A heat exchanger according to claim 0 or 0.