CN218644383U - GVC valve box - Google Patents
GVC valve box Download PDFInfo
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- CN218644383U CN218644383U CN202222771021.6U CN202222771021U CN218644383U CN 218644383 U CN218644383 U CN 218644383U CN 202222771021 U CN202222771021 U CN 202222771021U CN 218644383 U CN218644383 U CN 218644383U
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- gas
- valve
- gas pipeline
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- differential pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses a GCU valve box relates to gas engine technical field. The GYU valve box comprises a box body and a gas pipeline, wherein the box body is provided with a gas pipeline inlet and a gas pipeline outlet, the gas pipeline extends into the box body from the gas pipeline inlet, the gas pipeline extends out of the box body from the gas pipeline outlet and is connected with a gas engine, a self-operated differential pressure regulating valve is arranged on the gas pipeline, a gas pressure feedback pipe is connected to the gas pipeline between the self-operated differential pressure regulating valve and the gas engine, and the gas pressure feedback pipe is connected with one side of a gas chamber of the self-operated differential pressure regulating valve; the gas engine is connected with a booster air pressure feedback pipe, and the booster air pressure feedback pipe is connected with the other side of the air chamber. The utility model discloses the pressure differential between the booster air pressure that the GCU valve box can automatically regulated gas pressure and gas engine guarantees the control accuracy of its injection valve of gas engine under various operating modes.
Description
Technical Field
The utility model relates to a gas engine technical field, concretely relates to GCU valve box.
Background
The GCU valve box is usually arranged on an air supply system of the gas engine, and a plurality of valve elements and pipeline devices for controlling or regulating the gas supply are arranged in the GCU valve box.
With the large-scale real-ship application of the gas engine, the power of the gas engine is higher and higher, and the injection quantity of the gas injection valve is also higher and higher, but the injection valve with the large injection quantity cannot realize the gas injection with no load, low load and high load due to the problems of control precision and responsiveness, and the existing GVC valve box does not have the function of regulating the pressure of the gas in structure and function, so that the control precision of the injection valve of the gas engine under various working conditions cannot be ensured.
SUMMERY OF THE UTILITY MODEL
To the above defect that prior art exists, the utility model provides a GVC valve box, this GVC valve box can automatically regulated gas pressure and gas engine's the pressure differential between the supercharged air pressure, guarantees the control accuracy of its injection valve of gas engine under various operating modes.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the GYU valve box comprises a box body and a gas pipeline, wherein the box body is provided with a gas pipeline inlet and a gas pipeline outlet, the gas pipeline extends into the box body from the gas pipeline inlet, the gas pipeline extends out of the box body from the gas pipeline outlet and is connected with a gas engine, a self-operated differential pressure regulating valve is arranged on the gas pipeline, a gas pressure feedback pipe is connected to the gas pipeline between the self-operated differential pressure regulating valve and the gas engine, and the gas pressure feedback pipe is connected with one side of a gas chamber of the self-operated differential pressure regulating valve; and the gas engine is connected with a booster air pressure feedback pipe, and the booster air pressure feedback pipe is connected with the other side of the air chamber.
And a valve rod of the self-operated differential pressure regulating valve extends out of the box body and is connected with a differential pressure regulating cover of the self-operated differential pressure regulating valve.
The gas filter is arranged on the gas pipeline and is positioned at the upstream of the self-operated pressure difference regulating valve.
And a purging device used for purging the gas in the gas pipeline is arranged in the box body.
The purging device comprises a nitrogen inlet pipe, an exhaust pipe, a first electric control valve, a second electric control valve and a third electric control valve, wherein the first electric control valve is arranged on the gas pipeline and is positioned between the gas filter and the self-operated differential pressure regulating valve; the nitrogen gas inlet pipe and the exhaust pipe are connected to the gas pipeline and are positioned between the first electric control valve and the gas filter; the second electric control valve is arranged on the nitrogen inlet pipe; the third electric control valve is arranged on the exhaust pipe.
The nitrogen inlet pipe is located between the first electric control valve and the exhaust pipe, and the exhaust pipe is located between the nitrogen inlet pipe and the gas filter.
The gas pipeline is provided with a one-way valve, and the one-way valve is positioned between the gas filter and the exhaust pipe.
Adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model provides a GVC valve box, through installing self-operated pressure difference regulating valve on the gas pipeline, utilize the supercharged air pressure of self-operated pressure difference regulating valve real-time feedback gas engine and correspondingly adjust the gas pressure behind the self-operated pressure difference regulating valve, make the gas pressure behind the self-operated pressure difference regulating valve and the pressure differential between the supercharged air pressure remain invariable throughout, reach the purpose of guaranteeing the control accuracy of injection valve under the various operating modes with this, compare with prior art, the utility model discloses the GVC valve box has realized the automatic control of pressure differential between gas pressure and the supercharged air pressure, has improved gas engine's injection valve control accuracy, has satisfied high-power gas engine's user demand, has improved adaptability.
Drawings
Fig. 1 is a schematic structural diagram of the GVU valve box of the present invention;
in the figure: 1. a box body; 2. a gas pipeline; 3. a gas engine; 4. a self-operated differential pressure regulating valve; 41. a valve stem; 42. a differential pressure regulating cover; 5. a gas pressure feedback tube; 6. a charge air pressure feedback tube; 7. a gas filter; 8. a nitrogen inlet pipe; 9. an exhaust pipe; 10. a first electrically controlled valve; 11. a second electrically controlled valve; 12. a third electrically controlled valve; 13. a one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the GVU valve box includes a box body 1 and a gas pipeline 2, the box body 1 has a gas pipeline inlet and a gas pipeline outlet, the gas pipeline 2 extends into the box body 1 from the gas pipeline inlet, and the gas pipeline 2 extends out of the box body 1 from the gas pipeline outlet and is connected with a gas engine 3, a self-operated differential pressure regulating valve 4 is arranged on the gas pipeline 2, a gas pressure feedback pipe 5 is connected to the gas pipeline 2 between the self-operated differential pressure regulating valve 4 and the gas engine 3, and the gas pressure feedback pipe 5 is connected to one side of a gas chamber of the self-operated differential pressure regulating valve 4; the gas engine 3 is connected with a booster air pressure feedback pipe 6, and the booster air pressure feedback pipe 6 is connected with the other side of the air chamber of the self-operated differential pressure regulating valve 4.
By installing the self-operated differential pressure regulating valve 4 on the gas pipeline 2, the pressure of the pressurized air of the gas engine 3 is fed back in real time by the self-operated differential pressure regulating valve 4 and the gas pressure behind the self-operated differential pressure regulating valve 4 is correspondingly regulated, so that the pressure difference between the gas pressure behind the self-operated differential pressure regulating valve 4 and the pressurized air pressure is always kept constant, and the aim of ensuring the control precision of the injection valve under various working conditions is fulfilled.
The self-operated differential pressure regulating valve 4 in this embodiment is a prior art and will not be described herein. In order to adjust the self-operated differential pressure regulating valve 4 conveniently, in the embodiment, the valve rod 41 of the self-operated differential pressure regulating valve 4 extends out of the box body 1 to be connected with the differential pressure regulating cover 42 of the self-operated differential pressure regulating valve 4, so that the adjustment of the self-operated differential pressure regulating valve 4 can be realized from the outside of the box body 1, the box body 1 does not need to be disassembled, and the labor intensity is greatly reduced.
In the embodiment, a gas filter 7 for filtering gas is arranged in the box body 1, and the gas filter 7 is arranged on the gas pipeline 2 and is located at the upstream of the self-operated differential pressure regulating valve 4.
The case 1 in this embodiment is provided with a purging device for purging the gas in the gas pipeline 2. Through setting up the device that sweeps, eliminated the potential safety hazard that appears because of open fire operation when the maintenance, improved the security.
Specifically, the purging device comprises a nitrogen inlet pipe 8, an exhaust pipe 9, a first electric control valve 10, a second electric control valve 11 and a third electric control valve 12, wherein the first electric control valve 10 is arranged on the gas pipeline 2 and is positioned between the gas filter 7 and the self-operated differential pressure regulating valve 4; one end of a nitrogen inlet pipe 8 is connected to the gas pipeline 2, the other end of the nitrogen inlet pipe is connected with nitrogen equipment (not shown in the figure), and a second electric control valve 11 is arranged on the nitrogen inlet pipe 8; one end of the exhaust pipe 9 is connected to the gas pipeline 2, the other end is communicated with the outside, and the third electric control valve 12 is arranged on the exhaust pipe 9; and the nitrogen inlet pipe 8 and the exhaust pipe 9 are both positioned between the first electric control valve 10 and the gas filter 7.
The nitrogen inlet pipe 8 in this embodiment is located between the first electronic control valve 10 and the exhaust pipe 9, and the exhaust pipe 9 is located between the nitrogen inlet pipe 8 and the gas filter 7.
The first electronic control valve 10, the second electronic control valve 11, and the third electronic control valve 12 in this embodiment may adopt one of an electric butterfly valve and an electric ball valve, which is specifically selected according to actual requirements, and this embodiment is not limited thereto.
The gas pipeline 2 in this embodiment is further provided with a check valve 13, and the check valve 13 is located between the gas filter 7 and the exhaust pipe 9. By providing the check valve 13, the reverse flow of gas in the gas line 2 is avoided.
When the self-operated differential pressure regulating valve is used, the first electric control valve 10 is opened, the second electric control valve 11 and the third electric control valve 12 are closed, the fuel gas in the fuel gas pipeline 2 is filtered by the fuel gas filter 7 and then reaches the fuel gas engine 3 through the first electric control valve 10 and the self-operated differential pressure regulating valve 4, wherein the self-operated differential pressure regulating valve 4 feeds back the pressure of the pressurized air of the fuel gas engine 3 in real time and correspondingly regulates the pressure of the fuel gas behind the self-operated differential pressure regulating valve 4, so that the pressure difference between the pressure of the fuel gas behind the self-operated differential pressure regulating valve 4 and the pressure of the pressurized air of the fuel gas engine 3 is always constant, and the control precision of the injection valve of the fuel gas engine 3 under various working conditions is ensured.
When needing the maintenance, close first automatically controlled valve 10 earlier, open second automatically controlled valve 11 and third automatically controlled valve 12, fill the nitrogen gas operation through nitrogen gas intake pipe 8 to gas pipeline 2, arrange the remaining gas in gas pipeline 2 to the external world through blast pipe 9, eliminate the potential safety hazard, maintain the operation again.
Above detailed description the utility model discloses the concrete structure and the theory of operation of GVC valve box compare with prior art, the utility model discloses the automatic control of pressure differential between the supercharged air pressure of gas pressure and gas engine 3 has been realized to the GVC valve box, has improved the control accuracy of the injection valve of gas engine 3, has satisfied high-power gas engine 3's user demand, has improved adaptability.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative work from the above conception, and all the changes fall within the protection scope of the present invention.
Claims (7)
- A GYU valve box, comprising a box body and a gas pipeline, wherein the box body is provided with a gas pipeline inlet and a gas pipeline outlet, the gas pipeline extends into the box body from the gas pipeline inlet, and the gas pipeline extends out of the box body from the gas pipeline outlet and is connected with a gas engine,a self-operated differential pressure regulating valve is arranged on the gas pipeline, a gas pressure feedback pipe is connected to the gas pipeline between the self-operated differential pressure regulating valve and the gas engine, and the gas pressure feedback pipe is connected with one side of a gas chamber of the self-operated differential pressure regulating valve; and the gas engine is connected with a booster air pressure feedback pipe, and the booster air pressure feedback pipe is connected with the other side of the air chamber.
- 2. The GVU valve box of claim 1, wherein said stem of said self-operated differential pressure regulator extends out of said box and connects to a differential pressure regulating cover of said self-operated differential pressure regulator.
- 3. A GVU valve box according to claim 1, wherein a gas filter is provided in said box, said gas filter being provided on said gas line upstream of said self-operated differential pressure regulating valve.
- 4. A GVC valve box according to claim 3, wherein a purging device is arranged in the box body for purging gas in the gas pipeline.
- 5. The GVC valve box of claim 4, wherein the purging device comprises a nitrogen inlet pipe, an exhaust pipe, a first electric control valve, a second electric control valve and a third electric control valve, the first electric control valve is arranged on the gas pipeline and is positioned between the gas filter and the self-operated differential pressure regulating valve; the nitrogen gas inlet pipe and the exhaust pipe are connected to the gas pipeline and are positioned between the first electric control valve and the gas filter; the second electric control valve is arranged on the nitrogen inlet pipe; the third electric control valve is arranged on the exhaust pipe.
- 6. A GVC valve box according to claim 5, wherein said nitrogen inlet pipe is located between said first electrically controlled valve and said exhaust pipe, said exhaust pipe being located between said nitrogen inlet pipe and said gas filter.
- 7. A GVC valve box according to claim 6, wherein a one-way valve is arranged on the gas pipeline, said one-way valve being located between the gas filter and the exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222771021.6U CN218644383U (en) | 2022-10-20 | 2022-10-20 | GVC valve box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222771021.6U CN218644383U (en) | 2022-10-20 | 2022-10-20 | GVC valve box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218644383U true CN218644383U (en) | 2023-03-17 |
Family
ID=85495801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222771021.6U Active CN218644383U (en) | 2022-10-20 | 2022-10-20 | GVC valve box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218644383U (en) |
-
2022
- 2022-10-20 CN CN202222771021.6U patent/CN218644383U/en active Active
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