KR101795436B1 - Apparatus for testing leakage of drain pipe for air-conditioner - Google Patents

Apparatus for testing leakage of drain pipe for air-conditioner Download PDF

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Publication number
KR101795436B1
KR101795436B1 KR1020150067974A KR20150067974A KR101795436B1 KR 101795436 B1 KR101795436 B1 KR 101795436B1 KR 1020150067974 A KR1020150067974 A KR 1020150067974A KR 20150067974 A KR20150067974 A KR 20150067974A KR 101795436 B1 KR101795436 B1 KR 101795436B1
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KR
South Korea
Prior art keywords
pipe
valve
drain pipe
gas
air conditioner
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KR1020150067974A
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Korean (ko)
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KR20160134242A (en
Inventor
박창기
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(주)파라텍
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Priority to KR1020150067974A priority Critical patent/KR101795436B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to a water leakage test apparatus for an air conditioner, comprising: a valve tube having a valve for selectively opening and closing an internal passage; A pressure gauge installed in the valve tube for measuring a pressure inside the drain pipe; A gas injection pipe branched from the pressure gauge for injecting gas into the water pipe; A first connection hose having one end connected to the air conditioner and the other end connected to a front end of the valve tube; A second connection hose having one end connected to the rear end of the valve tube and the other end connected to the drain pipe; After the gas is injected through the gas injection pipe to fill the discharge pipe, the leakage of the discharge pipe is tested according to the pressure change of the pressure gauge.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leak-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for testing a water pipe leakage in an air conditioner, and more particularly, to an apparatus capable of quickly and easily testing water leakage in a water pipe using nitrogen.

The air conditioner is used for indoor cooling, and it has a wall-mounted type installed on a wall of a building, a stand type placed on a floor, and a ceiling type installed on a ceiling. 1 shows a ceiling air conditioner as an example of the air conditioner. As shown in FIG. 1, a ceiling-type air conditioner 10 is installed on a ceiling of a building, and is fixed to a slab S by a fixing bolt B. A main body of the ceiling- And the discharge port is provided so as to be exposed to the outside of the ceiling finishing material 20. The refrigerant pipe 40 and the drain pipe 30 are connected to the air conditioner 10. The drain pipe 30 is formed of a PVC pipe and one end is connected to the main body of the air conditioner 10 by a hose 32, To the integrated drain pipe. The drain pipe 30 pumps water generated from the air conditioner 10 by a pump (not shown) and discharges the water to the outside. As shown in the drawing, the drain pipe 30 is bent upward by the head of the pump after the portion connected to the hose 32, And is bent back downward to be smoothly formed to form a downward slope of 3 mm.

The leakage test of the drain pipe 30 is performed after the installation of the ceiling finishing material 20 and the installation of the air conditioner 10. In the conventional leakage test method, one end of the drain pipe 30 is closed with a cap or a plastic bag, ), And the water pressure was checked after a lapse of one to two days. However, according to this method, it takes a long time to obtain leak test results, and it is inconvenient to obtain water for leakage test at the construction site, and it is very inconvenient to transport the water even to the construction site. In addition, winter test was difficult and inevitable, there was worry about frost due to water pressure test. When leakage occurs, the correction finishing material such as a tex is required to be replaced, and when the ceiling finishing material is applied by a gypsum board instead of a tex due to the upgrading of the building, the entire ceiling needs to be replaced again. In addition, it is difficult to carry out leakage test in each section or in some sections, and in case leakage occurs in the leak test after the drain pipe is embedded in the wall, the existing wall must be demolished and re-constructed.

Korean Patent Publication No. 2020100005294 Korean Patent No. 100898120

Disclosure of the Invention The present invention was conceived to solve the problems of the leakage test method of an air conditioner drain pipe using the conventional water as described above, and it is possible to test the leakage of the drain pipe by injecting a gas such as nitrogen, And it is an object of the present invention to provide a water leakage test apparatus which does not require damage or replacement of the ceiling finish material even when it is defective.

According to an aspect of the present invention, there is provided an apparatus for testing leakage in a drain pipe connected between an air conditioner and a drain pipe, comprising: a valve tube having a valve for selectively opening and closing an internal passage; A pressure gauge installed in the valve tube for measuring a pressure inside the drain pipe; A gas injection pipe branched from the pressure gauge for injecting gas into the water pipe; A first connection hose having one end connected to the air conditioner and the other end connected to a front end of the valve tube; A second connection hose having one end connected to the rear end of the valve tube and the other end connected to the drain pipe; After the gas is injected through the gas injection pipe to fill the discharge pipe, the leakage of the discharge pipe is tested according to the pressure change of the pressure gauge.

Here, it is preferable that a gas check valve is provided in the gas injection pipe, and the gas injected through the gas injection pipe is preferably nitrogen.

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As described above, according to the present invention, since gas such as nitrogen is filled and pressure is measured to judge whether or not a leak is caused, water leakage test can be performed quickly and easily, and the problem of damage and replacement of the ceiling finish material due to leakage is solved , It is possible to carry out leakage test without worrying about winter wave even in winter, and it is possible to integrally perform leakage test of a plurality of air conditioner pipes installed on the same floor or each floor.

FIG. 1 is a view showing a state of installation of a conventional air conditioner and a water pipe,
FIG. 2 is a view showing an installation state of an air conditioner water leakage test apparatus according to the present invention,
3 is a configuration diagram of an air conditioner drain leak test apparatus according to the present invention,
4 is a flow chart of a leakage test method using an apparatus for testing leakage of an air conditioner drain pipe according to the present invention,
FIG. 5 is a view schematically showing a method for integrally testing whether or not leaks of each building air conditioner drainage pipe of a building using an air conditioner water leakage test apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for testing leakage of an air conditioner drain pipe according to the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

2 and 3, an apparatus for testing the leak of an air conditioner drain pipe according to the present invention is installed between an air conditioner 10 and a drain pipe 30 and includes a valve pipe 110, a pressure gauge 120, (130) and a second connection hose (140).

The valve tube 110 is a main tube body having a valve for interrupting fluid (water or gas) passing through the inside thereof. 3, the valve 110 includes a body 110a having a circular cross section and a valve 110b for opening and closing an internal flow path of the body 110a, wherein the valve 110b Is constituted by a ball valve or a disc valve and is configured to selectively open and close the internal flow path of the body 110a of the valve tube 110 by rotation of the lever exposed to the outside. The body 110a of the valve tube 110 is a circular pipe but may be formed as a rectangular tube body to facilitate coupling of the nipple 110c to be described later and a central portion in which the valve 110b is mounted is a circular tube body (For mounting the ball valve) and a tubular body having a rectangular cross section may be used only on the end side where the nipple 110c is engaged. There is no particular limitation on the material of the valve tube 110, but it is preferable that the valve tube 110 is made of a plastic material in consideration of the manufacturing cost.

The pressure gauge 120 is for measuring the pressure of the gas filled in the drain pipe 30 and is installed on the outer peripheral surface of the rear side body 110a of the valve 110b of the valve pipe 110 as shown in FIG. . The pressure gauge 120 is composed of a gauge portion for displaying the pressure value and a tube for connecting the gauge to the valve tube 110. The tube body is fixed to the nipple 110c penetrating the valve tube 110 by a fixing nut 121 ).

The gas injection pipe 122 is branched from the pressure gauge 120 and more specifically the tube of the pressure gauge. The gas injection pipe 122 injects a gas such as nitrogen for the leakage test of the water pipe 30 And a check valve 124 is provided at an end of the pipe. The check valve 124 is normally closed and is opened by the injection pressure at the time of injecting the gas from the outside, so that the gas can be injected without discharging the gas inside.

The first connection hose 130 and the second connection hose 140 are coupled to the front and rear ends of the valve tube 110, respectively. The first connection hose 130 and the second connection hose 140 are for adjusting the length and position of the drain pipe 30 and the first connection hose 130 is connected to the air conditioner 10 And the second connection hose 140 is connected to the drain pipe 30 by the second coupling hole 142. It is preferable that the connection between the first connection hose 130 and the second connection hose 140 and the valve tube 110 is sealed by a separate connection port and other connection methods may be used if necessary . In the preferred embodiment, the first connection hose 130 is formed of a soft hose and is coupled to the first coupling hole 132 by a band (not shown), and the second connection hose 140 is formed of a soft hose And is preferably adhesively bonded to the second coupling member 142. The first connection hose 130 and the second connection hose 140 may be formed of a single hose connected to each other and only a portion through which the valve 110b and the pressure gauge 120 connecting nipple 110c are passed may be partially cut or drilled .

Hereinafter, a leakage test method using the apparatus for testing leakage of an air conditioner drain pipe according to the present invention having the above-described configuration with reference to FIG. 4 will be described.

First, the first connection hose 130 and the second connection hose 140 of the air conditioner drain leak test apparatus according to the present invention are connected to the air conditioner 10 and the drain pipe 30, respectively (ST1). In the case of the existing installation drain pipe (30), the existing hose (32) is demolished and connected. Next, the valve 110b of the valve tube 110 is closed and the end of the drain pipe 30 is closed by a cap or other means for leakage test (ST2). Then, a gas such as nitrogen is injected through the gas injection pipe 122 branched from the pressure gauge 120 to fill the discharge pipe 30 with gas (ST3). At this time, the gas is filled until the piping pressure of the drain pipe 30 reaches a preset constant pressure value (reference value). Subsequently, the injection of the gas is stopped, the change in the pressure value of the pressure gauge 120 is monitored for a predetermined time (ST4), and it is judged whether or not the water pipe 30 is leaked based on the change in the pressure value of the pressure gauge 120 ). If the pressure value of the pressure gauge 120 does not change from the reference value at all despite the passage of time, it is determined that there is no leakage of the water pipe 30, and if the pressure value is continuously decreased from the reference value, It is determined that there is a risk of leakage.

After completion of the test, it is possible to connect the existing hose after demolishing the leak test apparatus or to maintain the present leak test apparatus as it is. Alternatively, the pressure gauge 120 May be removed and the cap 110 may be held in a capped portion of the valve cap 110.

As described above, according to the present invention, it is possible to measure the pressure of the gas such as nitrogen, thereby shortening the time required for determining the amount of water leakage compared with the case of using water, And replacement construction problems can be solved, and leak test can be carried out without worrying about freezing in winter.

5, a plurality of (or a plurality of the same number of) air conditioner drainage pipes 30 are installed in the building, and each drainage pipe 30 is connected to a building integrated drain pipe 200 The water pipes 30 are connected by the integrated water pipe 200, so that the water pipes of all or some of the water pipes are connected to each other. Leakage can be tested at once.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand. Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

110: valve tube 120: pressure gauge
122: gas injection tube 124: check valve
130: first connection hose 140: second connection hose

Claims (5)

The apparatus is connected between an air conditioner (10) and a drain pipe (30)
A valve tube 110 having a valve 110b for selectively opening and closing an internal flow path;
A pressure gauge 120 installed in the valve tube 110 for measuring a pressure inside the drain pipe 30;
A gas injection pipe 122 branched from the pressure gauge 120 for injecting gas into the drain pipe 30;
A first connection hose 130 having one end connected to the air conditioner 10 and the other end connected to a front end of the valve pipe 110;
And a second connection hose (140) having one end connected to the rear end of the valve pipe (110) and the other end connected to the drain pipe (30);
After the gas is injected through the gas injection pipe 122 to fill the discharge pipe 30 with gas, the leakage of the discharge pipe 30 is tested according to the pressure change of the pressure gauge 120,
The valve 110b is provided at a position between the air conditioner 10 and the pressure gauge 120 to divide the air conditioner 10 and the drain pipe 30 to be tested when the valve 110b is closed,
Wherein the gas injection pipe (122) is provided with a gas check valve (124). delete The method according to claim 1,
Wherein the gas injected through the gas injection pipe (122) is nitrogen. delete delete
KR1020150067974A 2015-05-15 2015-05-15 Apparatus for testing leakage of drain pipe for air-conditioner KR101795436B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150067974A KR101795436B1 (en) 2015-05-15 2015-05-15 Apparatus for testing leakage of drain pipe for air-conditioner

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KR101795436B1 true KR101795436B1 (en) 2017-11-09

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109297135B (en) * 2018-11-05 2024-01-30 北京中创绿色系统科技有限公司 Leakage monitoring system and self-control method for air conditioner water circulation system
CN112903209A (en) * 2021-02-08 2021-06-04 陕西长岭特种设备股份有限公司 Air tightness detection method for shelter air conditioning equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101255188B1 (en) * 2011-11-29 2013-04-22 경남정보대학교 산학협력단 Water leakage testing device of radiator and cooling lines in vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100898120B1 (en) 2007-12-28 2009-05-18 위니아만도 주식회사 Structure for installing the drain hose of ceiling type air-conditioner
KR20100005294U (en) 2008-11-14 2010-05-25 에어테크엔지니어링(주) . The hydrostat an air conditioner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101255188B1 (en) * 2011-11-29 2013-04-22 경남정보대학교 산학협력단 Water leakage testing device of radiator and cooling lines in vehicle

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