CN211955063U - Quick alternative high pressure hot and cold water circulation test equipment - Google Patents
Quick alternative high pressure hot and cold water circulation test equipment Download PDFInfo
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- CN211955063U CN211955063U CN202020286094.4U CN202020286094U CN211955063U CN 211955063 U CN211955063 U CN 211955063U CN 202020286094 U CN202020286094 U CN 202020286094U CN 211955063 U CN211955063 U CN 211955063U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 245
- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000005057 refrigeration Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 239000008399 tap water Substances 0.000 claims description 7
- 235000020679 tap water Nutrition 0.000 claims description 6
- 230000001351 cycling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The utility model discloses a quick alternative high pressure hot and cold water circulation test equipment relates to hot and cold water circulation test equipment technical field, has solved the easy technical problem that causes the leakage and the unstable normal pressure in the test pipe-line system that damages of current hot and cold water circulation test equipment booster pump, the utility model discloses a normal atmospheric temperature water circulation system, hot water circulation system, pressure testing pipe-line system and PLC control system, normal atmospheric temperature water circulation system and hot water circulation system are connected with pressure testing pipe-line system both ends respectively, the water pitcher of normal atmospheric temperature water circulation system and hot water circulation system all be connected with air compression system through the pipeline, normal atmospheric temperature water circulation system in be provided with the refrigeration and heating unit circulating pipe, the refrigeration and heating unit circulating pipe be connected with outside refrigeration and heating unit; the utility model has the advantages of simple structure, adopt high-pressure compressed air to come for experimental pipe-line system provides the pressure source, the rethread electromagnetism proportion air-vent valve provides invariable test pressure for pipe-line system.
Description
Technical Field
The invention relates to the technical field of cold and hot water circulation testing machines, in particular to a quick alternating high-pressure cold and hot water circulation testing device which is used for quality safety detection of plastic and metal pipe fittings.
Background
At present, cold and hot water circulation test equipment manufactured in China generally adopts one or two high-power booster pumps to realize the boosting of a pipeline system, and simultaneously, the cold and hot water switching and circulation of the pipeline system are realized. The cold and hot water circulation test is a long-term continuous test process, a booster water pump is used for providing pressure for a pipeline system, and in continuous alternation of cold and hot water, the service life of a sealing ring of the booster water pump is often short, so that the phenomenon of leakage is frequently generated, and the test pipeline pressure cannot meet the requirement and fails. And adopt the water pump pressure boost, because booster water pump and test pipeline directly switch on, the pressure is unstable usually in the test piping system, and is undulant great, adopts the consumption of the great increase electric energy of high-power electronic booster pump meeting simultaneously.
At present, cold and hot water circulation test equipment manufactured in China generally adopts one or two high-power booster pumps to realize the boosting of a pipeline system, and simultaneously, the cold and hot water switching and circulation of the pipeline system are realized. The cold and hot water circulation test is a long-term continuous test process, a booster water pump is used for providing pressure for a pipeline system, and in continuous alternation of cold and hot water, the service life of a sealing ring of the booster water pump is often short, so that the phenomenon of leakage is frequently generated, and the test pipeline pressure cannot meet the requirement and fails. And adopt the water pump pressure boost, because booster water pump and test pipeline directly switch on, the pressure is unstable usually in the test piping system, and is undulant great, adopts the consumption of the great increase electric energy of high-power electronic booster pump meeting simultaneously.
Disclosure of Invention
The invention aims to: the invention provides a rapid alternating high-pressure cold and hot water circulation test device, which aims to solve the technical problems that a booster water pump of the existing cold and hot water circulation test device is easy to damage and causes leakage and the common pressure in a test pipeline system is unstable.
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a quick high pressure hot and cold water circulation test equipment in turn, includes normal atmospheric temperature water circulating system, hot water circulating system, pressure testing pipe-line system and PLC control system, normal atmospheric temperature water circulating system and hot water circulating system are connected with pressure testing pipe-line system both ends respectively, normal atmospheric temperature water circulating system and hot water circulating system's water pitcher all be connected with air compression system through the pipeline, normal atmospheric temperature water circulating system in be provided with the refrigeration and heating unit circulating pipe, the refrigeration and heating unit circulating pipe be connected with outside refrigeration and heating unit.
Further, the air compression system comprises an air compressor, an outlet of the air compressor is connected with an electromagnetic proportional control valve, the electromagnetic proportional control valve is divided into two pipelines which are respectively communicated with the water tanks of the normal-temperature water circulating system and the hot water circulating system, a pressure sensor and a two-way electromagnetic valve are arranged on the pipeline connected with the normal-temperature water circulating system, a two-way electromagnetic valve is arranged on the other pipeline communicated with the hot water circulating system, a tap water pipe and a pressure discharge pipe are connected to the two pipelines, and the two-way electromagnetic valve is arranged on the tap water pipe and the pressure discharge pipe.
Further, the air compression system comprises a cold water interface and a hot water interface.
Further, normal temperature water circulating system include the normal temperature water jar body and with normal temperature water export and normal temperature water return mouth of the internal portion intercommunication of normal temperature water jar, normal temperature water export and normal temperature water return mouth communicate with cold water interface and hot water interface respectively, the normal temperature water jar internal water level sensor A and temperature sensor A of being provided with, be provided with normal temperature water circulating pump, temperature sensor and two-way solenoid valve on the pipeline between normal temperature water export and the cold water interface, be provided with two-way solenoid valve and pressure sensor on the connecting pipe between normal temperature water return mouth and the hot water interface.
Further, a compressed air inlet A is formed in the top of the normal-temperature water tank body.
Furthermore, the hot water circulation system comprises a hot water tank body, a hot water inlet and a hot water outlet which are communicated with the inside of the hot water tank body, the hot water inlet and the hot water outlet are communicated with a cold water interface and the hot water interface respectively, a heating ring is arranged at the bottom inside the hot water tank body, a water level sensor B and a temperature sensor B are further arranged on the hot water tank body, a hot water circulating pump, a temperature sensor, a two-way electromagnetic valve and a pressure sensor are arranged on a pipeline between the hot water outlet and the hot water interface, and the two-way electromagnetic valve is arranged on a connecting pipe between the hot water inlet and the cold water.
Furthermore, a compressed air inlet B is formed in the top of the hot water tank body.
The function of the components:
the heating ring is used for supplying the temperature of hot water in the high-temperature high-pressure constant-temperature water tank, the switch of the heating ring is transmitted to the control system by the temperature sensor, the control system automatically opens or closes through the set temperature value,
the refrigerating and heating unit is used for controlling the temperature of the outer constant temperature water tank, then the temperature of the normal temperature high pressure constant temperature water tank is controlled by the outer constant temperature water tank through temperature transmission, and the control of the refrigerating and heating unit is controlled in a two-way mode by a control system through temperature sensor transmission temperature.
The air compressor provides constant test pressure for the system through an electromagnetic proportional pressure regulating valve.
The safety valve is used for setting the highest limit value of the pressure in the high-temperature high-pressure constant-temperature water tank.
The invention has the following beneficial effects:
1. the invention has simple structure, the purpose of the invention is to provide a pressure source for a test pipeline system by adopting high-pressure compressed air, provide constant test pressure for the pipeline system by adopting an electromagnetic proportional pressure regulating valve, and provide cold and hot water circulating power for the test pipeline by adopting a miniature electric water pump, thereby reducing the abrasion of the electric water pump and the consumption of electric energy; when the pressure in the pipeline reaches the set test pressure, the air compressor is in a dormant state, and meanwhile, the energy consumption is saved.
2. Through the automatic control of the electric control system to each electromagnetic valve, when cold and hot water is switched, high-pressure air can switch the cold and hot water at high speed. The cold and hot water circulation test equipment has the advantages of high cold and hot water switching speed, long service life, low failure rate, low energy consumption and low equipment cost.
3. The invention aims to provide a pressure source for a test pipeline system by adopting high-pressure compressed air, provide constant test pressure for the pipeline system by adopting an electromagnetic proportional pressure regulating valve, and provide cold and hot water circulating power for the test pipeline by adopting a miniature electric water pump, thereby reducing the abrasion of the electric water pump and the consumption of electric energy; when the pressure in the pipeline reaches the set test pressure, the air compressor is in a dormant state, and meanwhile, the energy consumption is saved.
4. The key point of the invention is that gas-liquid pressure conversion is adopted, the key point is that the whole pipeline system is closed, the pressure loss is extremely small, continuous pressurization is not needed, and the power consumption of the whole machine is 1/8 of the traditional cold-hot water circulation test equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an air compression system
FIG. 3 is a schematic mechanical view of a pressure test piping system;
FIG. 4 is a schematic view showing the construction of a normal temperature water circulation system;
FIG. 5 is a schematic view showing the construction of a hot water circulation system;
FIG. 6 is a circuit schematic of the present invention;
reference numerals: 1-hot water circulating system, 1-1-compressed air inlet B, 1-2-hot water inlet, 1-3-hot water tank body, 1-4-temperature sensor B, 1-5-heating ring, 1-6-hot water outlet, 1-7-water level sensor B, 2-air compressing system, 2-1-air compressor, 2-2-electromagnetic proportion regulating valve, 2-3-pressure sensor, 2-4-pressure discharge pipe, 2-5-tap water pipe, 3-normal temperature water circulating system, 3-1-compressed air inlet A, 3-2-normal temperature water return port, 3-4-normal temperature water tank body, 3-5-temperature sensor A, 3-6-a circulating pipe water inlet, 3-7-a circulating pipe water outlet, 3-8-a normal temperature water outlet, 3-9-a water level sensor A, 4-a refrigerating and heating unit circulating pipe, 5-a refrigerating and heating unit, 6-a pressure test pipeline system, 6-1-a cold water interface and 6-2-a hot water interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a rapid alternating high-pressure cold and hot water circulation test device, which includes a normal-temperature water circulation system 3, a hot water circulation system 1, a pressure test pipeline system 6 and a PLC control system, where the normal-temperature water circulation system 3 and the hot water circulation system 1 are respectively connected to two ends of the pressure test pipeline system 6, water tanks of the normal-temperature water circulation system 3 and the hot water circulation system 1 are both connected to an air compression system 2 through pipelines, a refrigeration and heating unit circulation pipe 4 is disposed in the normal-temperature water circulation system 3, and the refrigeration and heating unit circulation pipe 4 is connected to an external refrigeration and heating unit 5.
In the embodiment, high-pressure compressed air is adopted to provide a pressure source for a test pipeline system, constant test pressure is provided for the pipeline system through an electromagnetic proportional pressure regulating valve, and cold and hot water circulating power can be provided for the test pipeline by adopting a miniature electric water pump, so that the abrasion of the electric water pump and the consumption of electric energy are reduced; when the pressure in the pipeline reaches the set test pressure, the air compressor is in a dormant state, and meanwhile, the energy consumption is saved.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
the air compression system 2 comprises an air compressor 2-1, an outlet of the air compressor 2-1 is connected with an electromagnetic proportional control valve 2-2, the electromagnetic proportional control valve 2-2 is divided into two pipelines which are respectively communicated with a normal-temperature water circulating system 3 and a water tank of a hot water circulating system 1, a pipeline connected with the normal-temperature water circulating system 3 is provided with a pressure sensor 2-3 and a two-way electromagnetic valve, the other pipeline communicated with the hot water circulating system 1 is provided with a two-way electromagnetic valve, the two pipelines are both connected with a tap water pipe 2-5 and a pressure discharge pipe 2-4, and the tap water pipe 2-5 and the pressure discharge pipe 2-4 are both provided with two-way electromagnetic valves.
The air compression system 2 comprises a cold water interface 6-1 and a hot water interface 6-2.
The normal-temperature water circulating system comprises a normal-temperature water tank body 3-4, a normal-temperature water outlet 3-8 and a normal-temperature water return port 3-2 which are communicated with the inside of the normal-temperature water tank body 3-4, wherein the normal-temperature water outlet 3-8 and the normal-temperature water return port 3-2 are respectively communicated with a cold water interface 6-1 and a hot water interface 6-2, a water level sensor A3-9 and a temperature sensor A3-5 are arranged in the normal-temperature water tank body 3-4, a normal-temperature water circulating pump, a temperature sensor and a two-way electromagnetic valve are arranged on a pipeline between the normal-temperature water outlet 3-8 and the cold water interface 6-1, and a two-way electromagnetic valve and a pressure sensor are arranged on a connecting pipe between the normal-temperature water.
The top of the normal temperature water tank body 3-4 is provided with a compressed air inlet A3-1.
The hot water circulating system comprises a hot water tank body 1-3, and a hot water inlet 1-2 and a hot water outlet 1-6 which are communicated with the inside of the hot water tank body 1-3, wherein the hot water inlet 1-2 and the hot water outlet 1-6 are respectively communicated with a cold water interface 6-1 and the hot water interface 6-2, the bottom inside the hot water tank body 1-3 is provided with a heating ring 1-5, the hot water tank body 1-3 is also provided with a water level sensor B1-7 and a temperature sensor B1-4, a pipeline between the hot water outlet 1-6 and the hot water interface 6-2 is provided with a hot water circulating pump, a temperature sensor, a two-way electromagnetic valve and a pressure sensor, and a connecting pipe between the hot water inlet 1-2 and the cold water interface 6-1 is provided with the two-way electromagnetic valve.
The top of the hot water tank body 1-3 is provided with a compressed air inlet B1-1.
The working principle is as follows:
opening the two-way electromagnetic valve I2-9, closing the small-path two-way electromagnetic valve 2-11, opening the two-way electromagnetic valve II 2-8, closing the two-way electromagnetic valve III 3-10, opening the two-way electromagnetic valve IV 1-8 and closing the two-way electromagnetic valve V3-3, compressing hot water in the hot water tank body 1-3 by compressed air, enabling the water pressure in the test pipeline system to reach a set value, opening the hot water circulating pump, starting hot water circulation in the test pipeline system,
when the set hot water circulation time is reached, the hot water circulation pump is closed, the first two-way electromagnetic valve 2-9 is closed, the sixth two-way electromagnetic valve 1-9 is closed, the second two-way electromagnetic valve 2-8 is opened, the fifth two-way electromagnetic valve 3-3 is opened, the second small-drift-diameter two-way electromagnetic valve 2-11 is opened, the normal-temperature water is rapidly pressed into the test pipeline system by the compressed air through the second two-way electromagnetic valve 2-8, when the normal-temperature water flows to the temperature sensor, the control system immediately closes the fourth two-way electromagnetic valve 1-8 after receiving the normal-temperature water temperature value of the temperature sensor A, closes the second small-drift-diameter two-way electromagnetic valve 2-11, opens the third two-way electromagnetic valve,
when the set normal-temperature water circulation time is reached, the normal-temperature water circulation pump is closed, the two-way electromagnetic valve II 2-8 is closed, the two-way electromagnetic valve III 3-10 is closed, the two-way electromagnetic valve I2-9 is opened, the two-way electromagnetic valve IV 1-8 is opened, the small-drift-diameter two-way electromagnetic valve A2-7 is opened, at the moment, the compressed air quickly presses hot water into the test pipeline system through the two-way electromagnetic valve I2-9, when hot water flows to the temperature sensor, the control system immediately closes the five two-way electromagnetic valve 3-3, closes the small-path two-way electromagnetic valve A2-7, opens the six two-way electromagnetic valve 1-9 and opens the hot water circulating pump after receiving the hot water temperature value of the temperature sensor, the hot water is automatically circulated at the moment, the whole system is repeatedly circulated as above, and whether the test pipeline system leaks or not is detected after the set circulation times are reached.
Fig. 6 is a schematic circuit diagram of the present invention, which has a circuit principle:
the 4-path A/D conversion module 1# is used for converting current/voltage signals collected by all the temperature sensors into numerical signals and transmitting the numerical signals to the PLC control system, and the PLC control system is used for controlling temperature display of an output point and a human-computer interface;
the 4-path A/D conversion module 2# is used for converting current/voltage signals collected by all the pressure sensors and all the liquid level sensors into numerical signals and transmitting the numerical signals to the PLC control system, and the PLC control system controls the pressure display of an output point and a human-computer interface;
the 2-path D/A conversion module is used for converting the pressure value set by the PLC control system into a current/voltage signal to control the electromagnetic proportional pressure regulating valve.
Claims (7)
1. The utility model provides a quick high pressure hot and cold water circulation test equipment in turn, includes normal atmospheric temperature water circulating system (3), hot water circulating system (1), pressure testing pipe-line system (6) and PLC control system, its characterized in that, normal atmospheric temperature water circulating system (3) and hot water circulating system (1) are connected with pressure testing pipe-line system (6) both ends respectively, the water pitcher of normal atmospheric temperature water circulating system (3) and hot water circulating system (1) all be connected with air compression system (2) through the pipeline, normal atmospheric temperature water circulating system (3) in be provided with refrigeration heating unit circulating pipe (4), refrigeration heating unit circulating pipe (4) be connected with outside refrigeration heating unit (5).
2. The rapid alternating high pressure hot and cold water cycling test apparatus according to claim 1, the air compression system (2) comprises an air compressor (2-1), an outlet of the air compressor (2-1) is connected with an electromagnetic proportional control valve (2-2), the electromagnetic proportional control valve (2-2) is divided into two pipelines which are respectively communicated with a normal-temperature water circulating system (3) and a water tank of a hot water circulating system (1), a pipeline connected with the normal temperature water circulating system (3) is provided with a pressure sensor (2-3) and a two-way electromagnetic valve, and a two-way electromagnetic valve is arranged on the other pipeline communicated with the hot water circulating system (1), a tap water pipe (2-5) and a pressure discharge pipe (2-4) are connected to the two pipelines, and the tap water pipe (2-5) and the pressure discharge pipe (2-4) are provided with the two-way electromagnetic valve.
3. A rapid alternating high pressure hot and cold water circulation test apparatus according to claim 1, wherein said air compression system (2) comprises a cold water connection (6-1) and a hot water connection (6-2).
4. The rapid alternating high-pressure cold and hot water circulation test device according to claim 3, wherein the normal temperature water circulation system comprises a normal temperature water tank (3-4), a normal temperature water outlet (3-8) and a normal temperature water return port (3-2) which are communicated with the inside of the normal temperature water tank (3-4), the normal temperature water outlet (3-8) and the normal temperature water return port (3-2) are respectively communicated with the cold water connector (6-1) and the hot water connector (6-2), a water level sensor A (3-9) and a temperature sensor A (3-5) are arranged in the normal temperature water tank (3-4), a normal temperature water circulation pump, a temperature sensor and a two-way electromagnetic valve are arranged on a pipeline between the normal temperature water outlet (3-8) and the cold water connector (6-1), a two-way electromagnetic valve and a pressure sensor are arranged on a connecting pipe between the normal-temperature water return port (3-2) and the hot water interface (6-2).
5. The rapid alternating high pressure cold and hot water circulation test equipment according to claim 4, wherein a compressed air inlet A (3-1) is arranged at the top of the normal temperature water tank body (3-4).
6. The rapid alternating high-pressure cold and hot water circulation test device according to claim 3, wherein the hot water circulation system comprises a hot water tank body (1-3) and a hot water inlet (1-2) and a hot water outlet (1-6) which are communicated with the inside of the hot water tank body (1-3), the hot water inlet (1-2) and the hot water outlet (1-6) are respectively communicated with a cold water interface (6-1) and the hot water interface (6-2), a heating ring (1-5) is arranged at the bottom inside the hot water tank body (1-3), a water level sensor B (1-7) and a temperature sensor B (1-4) are further arranged on the hot water tank body (1-3), and a hot water circulation pump is arranged on a pipeline between the hot water outlet (1-6) and the hot water interface (6-2), The temperature sensor, the two-way electromagnetic valve and the pressure sensor are arranged on a connecting pipe between the hot water inlet (1-2) and the cold water interface (6-1).
7. A rapid alternating high pressure hot and cold water circulation test apparatus according to claim 6, characterized in that the top of the hot water tank (1-3) is provided with a compressed air inlet B (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286094.4U CN211955063U (en) | 2020-03-10 | 2020-03-10 | Quick alternative high pressure hot and cold water circulation test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286094.4U CN211955063U (en) | 2020-03-10 | 2020-03-10 | Quick alternative high pressure hot and cold water circulation test equipment |
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| Publication Number | Publication Date |
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| CN211955063U true CN211955063U (en) | 2020-11-17 |
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| CN202020286094.4U Active CN211955063U (en) | 2020-03-10 | 2020-03-10 | Quick alternative high pressure hot and cold water circulation test equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fast alternating high-pressure cold and hot water cycle test equipment Granted publication date: 20201117 Pledgee: Bank of China Limited Meishan Branch Pledgor: SICHUAN MINHE PIPELINE CONSTRUCTION ENGINEERING CO.,LTD.|Sichuan Minhe Pipe Industry Co.,Ltd. Registration number: Y2024980006802 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |