CN210802914U - Bench test device for replacing diesel engine anti-backflow water flapper valve - Google Patents
Bench test device for replacing diesel engine anti-backflow water flapper valve Download PDFInfo
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- CN210802914U CN210802914U CN201921614388.9U CN201921614388U CN210802914U CN 210802914 U CN210802914 U CN 210802914U CN 201921614388 U CN201921614388 U CN 201921614388U CN 210802914 U CN210802914 U CN 210802914U
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Abstract
In order to solve the cost problem caused by adopting a water-pouring-preventing tongue valve in the diesel engine water-pouring test in the prior art, the utility model provides a bench test device for replacing the water-pouring-preventing tongue valve of the diesel engine, which comprises an inlet exhaust pipe and an outlet exhaust pipe, and is characterized by also comprising a water-pouring-preventing component arranged between the inlet exhaust pipe and the outlet exhaust pipe; wherein, the backflow prevention component comprises a low-level water tank, a valve component and a control component; the input end of the low-level water tank is connected with the inlet exhaust pipe, and the output end of the low-level water tank is connected with the outlet exhaust pipe; the valve component is arranged in the low-level water tank or on the output end and the outlet exhaust pipe; the valve assembly is electrically connected with the control assembly and is used for forming different valve combinations which are closed or opened according to the normal air exhaust or water pouring of the pipeline. The utility model discloses can realize accomplishing the test of the minimum not flowing backward rotational speed of diesel engine safely, efficient on the rack.
Description
Technical Field
The utility model relates to a test field of diesel engine, in particular to bench test substitution device of the tongue valve that prevents flowing backward of installation on special purpose diesel engine blast pipe road.
Background
Nowadays, the applications and the types of diesel engines are more and more, and a special-purpose marine diesel engine is provided, wherein under certain working conditions, an outlet of an exhaust pipe of the diesel engine is positioned below the water surface, and the risk of water flowing back into a cylinder of the diesel engine exists at any moment. Therefore, the minimum non-reverse-irrigation test needs to be carried out on the test bed to obtain the minimum running rotating speed of the non-reverse-irrigation water at the outlet of the exhaust pipe of the diesel engine.
In order to prevent seawater from flowing backwards, the exhaust pipe is provided with an inner flap valve and an outer flap valve, and the valves have to meet the requirements of seawater corrosion resistance, ultrahigh pressure bearing, complete sealing and quick opening and closing, so the cost is extremely high. During the bench test, because of using fresh water to test, and the pressure is only about 0.1MPa around the valve, has only used its water and sealing function of preventing flowing backward, consequently for the construction cost who reduces the test bench, an urgent need can satisfy water and sealing function and do not influence the experimental substitution device of flowing backward.
The utility model provides a fungible diesel engine prevents bench test device and test method of water tongue valve of falling, under the prerequisite that can ensure experimental security and experimental validity, greatly reduced bench test's cost.
SUMMERY OF THE UTILITY MODEL
In order to solve among the prior art diesel engine back irrigation water test and adopt the cost problem of preventing watering the tongue valve and causing more, the utility model provides a replace diesel engine and prevent bench test device of back irrigation tongue valve.
In order to achieve the above object, the utility model discloses a concrete scheme does: a bench test device for replacing a diesel engine anti-backflow water tongue valve comprises an inlet exhaust pipe and an outlet exhaust pipe, and is characterized by further comprising an anti-backflow component arranged between the inlet exhaust pipe and the outlet exhaust pipe; wherein, the backflow prevention component comprises a low-level water tank, a valve component and a control component; the input end of the low-level water tank is connected with the inlet exhaust pipe, and the output end of the low-level water tank is connected with the outlet exhaust pipe; the valve component is arranged in the low-level water tank or on the output end and the outlet exhaust pipe; the valve assembly is electrically connected with the control assembly and is used for forming different valve combinations which are closed or opened according to the normal air exhaust or water pouring of the pipeline.
The valve component comprises an inlet valve plate, a three-way butterfly valve, an outlet valve plate, a sealing butterfly valve and a drain valve; the three-way butterfly valve is arranged in the low-level water tank, and the horizontal input end of the three-way butterfly valve is connected with the inlet exhaust pipe; the horizontal output end of the three-way butterfly valve is connected with the outlet exhaust pipe; the inlet valve plate is arranged in the horizontal input end of the three-way butterfly valve; the sealing butterfly valve is arranged on the outlet exhaust pipe; the vertical output end of the three-way butterfly valve faces the low-level water tank and an outlet valve plate is arranged in the output end of the three-way butterfly valve; the drain valve and the drain pipeline are arranged at the bottom of the low-level water tank.
The control component comprises a temperature sensor, an alarm lamp, a water level measuring part and a control unit; the control unit is electrically connected with the temperature sensor, the alarm lamp, the water level measuring part, the inlet valve plate, the sealing butterfly valve, the outlet valve plate and the drain valve; the temperature sensor is arranged at the bottom of the pipeline of the outlet exhaust pipe; the water level measuring part is arranged in the low-level water tank and used for measuring the water level in the low-level water tank.
The utility model provides a bench test device and test method of fungible diesel engine anti-falling irrigation tongue valve can realize that the interior outer tongue valve prevents flowing backward and sealing function, ensures going on safely smoothly in the experiment of flowing backward to the at utmost, greatly reduced bench test's cost, make the bench low-cost carry out the diesel engine minimum not flowing backward the experiment and become possible.
Has the advantages that: the utility model provides a diesel engine minimum do not flow backward experimental test bench of rotational speed and test method, through the relevant optimization of arranging of exhaust pipe, can be safe, the efficient realizes accomplishing the diesel engine on the rack the minimum do not flow backward the experiment of rotational speed, solve the real ship and carry out the problem that relevant experimental risk is high, the difficulty is big, it is possible to carry out the diesel engine minimum do not flow backward the water experiment on land.
Drawings
FIG. 1 is a schematic view of the overall arrangement of an alternative apparatus;
FIG. 2 is a cross-sectional view of the low level tank;
in the figure: 1 inlet blast pipe, 2 water tank communicating pipes, 3 low-level water tanks, 4 drain valves, 5 sealed butterfly valves, 6 communicating pipes, 7 temperature sensor, 8 outlet blast pipes, 9 three-way butterfly valves, 10 inlet valve plates, 11 outlet valve plates, 12 red alarm lamps, 13 yellow alarm lamps and 14 stainless steel float valves.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 and 2, the test method is as follows:
in a normal exhaust state, exhaust gas passes through an inlet exhaust pipe 1, an inlet valve plate 10, a three-way butterfly valve 9, a sealing butterfly valve 5 and an outlet exhaust pipe 8 in sequence and is finally exhausted; when the water flows backward, the water will gradually develop in the opposite direction of the exhaust.
When the water of pouring water appears, the first pipeline bottom at outlet exhaust pipe 8 of pouring water, and wall temperature can reduce this moment, and temperature sensor 7 measured value can reduce rapidly, when reducing to the temperature threshold value, if during 40 degrees centigrade, yellow alarm lamp 12 will send a signal this moment, reminds control room and the near personnel of taking a trial run of low level water tank 3. The water level height in the exhaust pipe can be indicated in the communicating pipe 6, so that test personnel can observe in real time in the patrol process, and the fact that the water poured into the outlet exhaust pipe 8 is found at the first time is jointly ensured.
At the moment, the water poured into the outlet exhaust pipe 8 flows towards the low-level water tank, 3, the outlet valve plate 11 of the three-way butterfly valve 9 can be controlled to be opened through the control unit, the angle is 15-90 degrees, and the water poured into the low-level water tank 3 can flow through the opening of the outlet valve plate 11. When the water level in the low-level water tank 3 reaches a set height and triggers the alarm signal of the stainless steel float valve 14, the red alarm lamp 13 sends out the alarm signal, the control unit controls the inlet valve plate 10 to be closed, the outlet valve plate 11 to be completely opened, the sealing butterfly valve 5 is closed, the drain valve 4 is opened, and the low-level water tank 3 is prevented from being crossed by the poured water. The water tank communicating pipe 2 is further installed on the side face of the low-level water tank 3, and test personnel can observe the water level height in the low-level water tank 3 in real time to ensure test safety jointly. The connection part of the high-temperature resistant rubber tube is provided with a bending structure for preventing air circulation and ensuring smooth passing of water energy so as to reduce the temperature of the transparent glass tube, wherein the connection part of the high-temperature resistant rubber tube is provided with the communicating tube 6 and the water tank communicating tube 2.
After the outlet valve plate 11 is opened, the pouring water flows into the low-level water tank 3, the drain valve 4 is opened to discharge the pouring water in the low-level water tank 3, the sealing butterfly valve 5 is closed to prevent the pouring water from flowing in, the inlet valve plate 10 is closed to further prevent the pouring water, and the diesel engine is stopped subsequently.
Therefore, by multiple detection and protection measures, the fact that the water is found and discharged in the first time can be ensured, the water is prevented from being continuously developed towards the direction of the diesel engine, the safety of the diesel engine is effectively protected, and the test cost is greatly reduced.
The utility model discloses with original inside and outside tongue valve cancellation, the sealed butterfly valve 5 of the same specification of tongue valve position installation outside, install temperature sensor 7 on the outlet exhaust pipe 8 of sealed butterfly valve 5 back end for measure the pipe wall face temperature of sealed butterfly valve 5, can show the numerical value of the temperature that temperature sensor 7 gathered in the control room, when detecting that the temperature suddenly drops and is less than the temperature threshold value, utilize the control unit to send alarm signal. The bottom and the top of the outlet exhaust pipe 8 near the temperature sensor 7 are provided with holes to lead out connectors, the two connectors are connected with a high-temperature resistant rubber pipe, the rubber pipe is connected with a transparent glass pipe after being led out for a proper distance, the position of the glass pipe is fixed, and the bottom of the glass pipe is lower than the bottom connector of the outlet exhaust pipe 8.
A large-volume low-level water tank 3 is arranged in the middle of an original inner and outer reed valve, an inlet exhaust pipe 1 penetrates through the low-level water tank, and a three-way butterfly valve 9 is installed on the inlet exhaust pipe 1 inside the low-level water tank 3. The three-way butterfly valve 9 is reversely installed, the opening is downward, and the inlet is provided with an inlet valve plate 10. The backwashed water can flow into the low level tank 3 through the outlet valve plate 11 which is slightly opened downwards.
The low-level water tank 3 can be arranged according to the field condition, the capacity is big, the drain valve 4 is arranged at the bottom of the low-level water tank 3, and the drain flow of the drain valve 4 is not less than the flow of the back-flowing water. 3 internally arranged of low level water tank has stainless steel float valve 14, and stainless steel float valve 14 sets up to send alarm signal when the water level reaches a take the altitude in low level water tank 3, and this signal sends control unit at low level water tank 3, and control unit control red alarm lamp work informs the personnel of taking a trial run. When the stainless steel float valve 14 sends out, the control unit controls and controls the opening of the drain valve 4 at the bottom of the low-level water tank 3, the switching of the three-way butterfly valve 9 in the low-level water tank 3 and the closing of the sealing butterfly valve 5 behind the low-level water tank 3. The side surface of the low-level water tank 3 is also provided with a water tank communicating pipe 6 which is connected with a glass pipe by adopting a high-temperature resistant rubber pipe and is used for observing the water level in the low-level water tank 3 in real time.
It is to be understood that: the control unit can be various types of control components such as a PLC and the like which can meet corresponding requirements; the three-way butterfly valve (9) is a three-way valve which can be provided with a linkage mechanism; the sealing butterfly valve (5) is a water sealing butterfly valve which meets the requirements of exhaust and drainage; the drain valve (4) is a common drain butterfly valve.
6 ports of the P0-P7 ports of the control unit are connected with a temperature sensor (7), an alarm lamp, a water level measuring part, an inlet valve plate (10), a sealing butterfly valve (5), an outlet valve plate (11) and a drain valve (4). Wherein, the inlet valve plate (10), the sealing butterfly valve (5), the outlet valve plate (11) and the drain valve (4) can also be electromagnetic valves. When the above components are solenoid valves, the ports of the control unit are connected to corresponding relays to control the operation of the solenoid valves.
The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace the technical scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (5)
1. A bench test device for replacing a diesel engine anti-backflow water tongue valve comprises an inlet exhaust pipe (1) and an outlet exhaust pipe (8), and is characterized by further comprising an anti-backflow component arranged between the inlet exhaust pipe (1) and the outlet exhaust pipe (8);
wherein, the backflow prevention component comprises a low-level water tank (3), a valve component and a control component; the input end of the low-level water tank (3) is connected with the inlet exhaust pipe (1) and the output end is connected with the outlet exhaust pipe (8); the valve assembly is arranged in the low-level water tank (3) or on the output end and the outlet exhaust pipe (8); the valve assembly is electrically connected with the control assembly and is used for forming different valve combinations which are closed or opened according to the normal air exhaust or water pouring of the pipeline.
2. The bench test device for replacing the backflow-preventing reed valve of the diesel engine as claimed in claim 1, wherein the valve component comprises an inlet valve plate (10), a three-way butterfly valve (9), an outlet valve plate (11), a sealing butterfly valve (5) and a drain valve (4);
wherein, the three-way butterfly valve (9) is arranged in the low-level water tank (3) and the horizontal input end of the three-way butterfly valve (9) is connected with the inlet exhaust pipe (1); the horizontal output end of the three-way butterfly valve (9) is connected with an outlet exhaust pipe (8); the inlet valve plate (10) is arranged in the horizontal input end of the three-way butterfly valve (9); the sealing butterfly valve (5) is arranged on the outlet exhaust pipe (8); the vertical output end of the three-way butterfly valve (9) faces the low-level water tank (3) and an outlet valve plate (11) is arranged in the output end of the three-way butterfly valve; the drain valve (4) and the drain pipeline are arranged at the bottom of the low-level water tank (3).
3. The bench test device for replacing the backflow-preventing reed valve of the diesel engine as claimed in claim 1, the valve assembly comprises an inlet valve plate (10), a three-way butterfly valve (9), an outlet valve plate (11), a sealing butterfly valve (5) and a drain valve (4); wherein, the three-way butterfly valve (9) is arranged in the low-level water tank (3) and the horizontal input end of the three-way butterfly valve (9) is connected with the inlet exhaust pipe (1); the horizontal output end of the three-way butterfly valve (9) is connected with an outlet exhaust pipe (8); the inlet valve plate (10) is arranged in the horizontal input end of the three-way butterfly valve (9); the sealing butterfly valve (5) is arranged on the outlet exhaust pipe (8); the vertical output end of the three-way butterfly valve (9) faces the low-level water tank (3) and an outlet valve plate (11) is arranged in the output end of the three-way butterfly valve; the drain valve (4) and the drain pipeline are arranged at the bottom of the low-level water tank (3); the water level measuring device is characterized in that the control component comprises a temperature sensor (7), an alarm lamp, a water level measuring part and a control unit;
wherein, the control unit is electrically connected with the temperature sensor (7), the alarm lamp, the water level measuring part, the inlet valve plate (10), the sealing butterfly valve (5), the outlet valve plate (11) and the drain valve (4);
wherein, the temperature sensor (7) is arranged at the bottom of the outlet exhaust pipe (8); the water level measuring part is arranged inside the low-level water tank (3) and is used for measuring the water level in the low-level water tank (3).
4. The bench test device for replacing the backflow-preventing reed valve of the diesel engine as claimed in claim 1, 2 or 3, wherein the outlet exhaust pipe (8) is provided with a communicating vessel (6) for indicating the water level inside the outlet exhaust pipe.
5. The bench test device for replacing the backflow-preventing flapper valve of the diesel engine as claimed in claim 1, 2 or 3, characterized in that a water tank communicating pipe (2) for observing the water level in the low-level water tank (3) is arranged on the low-level water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921614388.9U CN210802914U (en) | 2019-09-25 | 2019-09-25 | Bench test device for replacing diesel engine anti-backflow water flapper valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921614388.9U CN210802914U (en) | 2019-09-25 | 2019-09-25 | Bench test device for replacing diesel engine anti-backflow water flapper valve |
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| CN210802914U true CN210802914U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921614388.9U Active CN210802914U (en) | 2019-09-25 | 2019-09-25 | Bench test device for replacing diesel engine anti-backflow water flapper valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514448A (en) * | 2019-09-25 | 2019-11-29 | 河南柴油机重工有限责任公司 | The bench test device and its test method of diesel oil substitute machine reverse-filling overflow valve |
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2019
- 2019-09-25 CN CN201921614388.9U patent/CN210802914U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514448A (en) * | 2019-09-25 | 2019-11-29 | 河南柴油机重工有限责任公司 | The bench test device and its test method of diesel oil substitute machine reverse-filling overflow valve |
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