CN217384695U - Device for measuring flow of fuel gas injection valve - Google Patents
Device for measuring flow of fuel gas injection valve Download PDFInfo
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- CN217384695U CN217384695U CN202220832361.2U CN202220832361U CN217384695U CN 217384695 U CN217384695 U CN 217384695U CN 202220832361 U CN202220832361 U CN 202220832361U CN 217384695 U CN217384695 U CN 217384695U
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- injection valve
- gas injection
- cavity
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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 belongs to the technical field of flow measuring device, specifically discloses a device for measuring the flow of a gas injection valve, which comprises a detection structure and a plurality of groups of connection structures, wherein the connection structures are used for connecting the detection structure with the gas injection valve to be detected, and the connection structures can be detachably connected on the detection structure; the detection structure is used for detecting the flow of the gas injection valve to be detected; each group of connecting structures comprises a connecting body, a first cavity for accommodating a gas injection valve to be tested is arranged in the connecting body, and the first cavity on the connecting body of each group of connecting structures corresponds to the gas injection valve to be tested with an interface size; the gas injection valve to be tested is detachably connected to the connecting body. The detection shell and the connector adopt modular design, and different connectors can be replaced according to different interface sizes of the fuel gas injection valve to be detected, so that the application range of the device is wider, the connector only needs to be replaced, the whole measuring device is not required to be replaced, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of flow measuring device, especially, relate to a measure device of gas injection valve flow.
Background
In recent years, due to the implementation of the strategy of "double carbon", the enthusiasm of selecting gas engines and dual-fuel engines is increasing, and the matching demand of gas injection systems is gradually expanded. The gas engine refers to an engine using combustible gas (mainly natural gas at present) as fuel, and the dual-fuel engine refers to an engine which can use fuel oil as fuel and can select natural gas (methane) as fuel. The gas injection system mainly comprises components such as a gas injection valve and a gas tank, and the flow of the gas injection valve needs to be measured before the gas injection valve is put into use. The traditional gas injection valve test bed is the first choice for performance debugging in the development stage of the gas injection valve due to high functional integration. However, due to the defects of high cost, complex operation, low efficiency and the like, the requirement of batch detection in the industrial application stage of the gas injection valve cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a measure device of gas injection valve flow to solve present gas injection valve measuring device problem with high costs, the operation is complicated, inefficiency, application scope is little. The utility model provides a device for measuring the flow of a gas injection valve, which has low cost, wide application range and simple operation and can meet the requirement of detecting the mass flow consistency of the gas injection valve; the device is low in cost, multiple devices can be manufactured and placed in an assembly workshop and a test workshop, and the detection efficiency is improved; the device has wide application range, and the connector can be replaced according to different gas injection valve interfaces, so that the test cost is reduced; the device is simple to operate, and only need carry out simple training to operating personnel can, save time.
In order to achieve the above purpose, the technical scheme of the utility model is that: a device for measuring the flow of a gas injection valve comprises a detection structure and a plurality of groups of connecting structures, wherein the connecting structures are used for connecting the detection structure with the gas injection valve to be detected, and the connecting structures are detachably connected to the detection structure; the detection structure is used for detecting the flow of the gas injection valve to be detected; each group of connecting structures comprises a connecting body, a first cavity for accommodating the gas injection valve to be tested is arranged in the connecting body, and the first cavity on the connecting body of each group of connecting structures corresponds to the gas injection valve to be tested with an interface size; the fuel gas injection valve to be tested is detachably connected to the connecting body; the inner wall of the first cavity in the connecting body is provided with a pressure stabilizing cavity, and an air inlet window of the fuel gas injection valve to be tested can be completely arranged in the pressure stabilizing cavity; and the connector is provided with an air inlet which is communicated with the pressure stabilizing cavity.
Further, the detection structure includes a detection housing; the detection shell is provided with a vertical second cavity, and the gas outlet of the gas injection valve to be detected is aligned with the second cavity; vertical sealed sliding connection has the piston in the second cavity, the top of piston is equipped with the scale, the scale superscript has the scale, the top of detecting the casing is equipped with the through-hole, the scale can stretch out the through-hole.
Furthermore, a boss is arranged at the top of the connecting body and can be inserted into a second cavity of the detection shell; and a connecting cavity is arranged inside the connecting body and is used for communicating the second cavity with the gas outlet of the gas injection valve to be tested.
Further, an annular lubricating oil groove is formed in the circumferential direction of the piston.
Further, the connecting cavity adopts a step-shaped structure; the bottom of the piston is provided with a groove, the opening of the groove is the same as the opening on the upper side of the connecting cavity, and the opening on the lower side of the connecting cavity is the same as the opening of the gas outlet of the gas injection valve to be tested.
Further, a first oil receiving groove is formed in the top of the boss; and a second oil receiving groove is arranged at the joint of the stepped structure of the connecting cavity.
Furthermore, a first O-shaped sealing ring is arranged in the first cavity.
Furthermore, a plurality of first threaded holes are formed in the detection shell, and second threaded holes corresponding to the first threaded holes are formed in the upper side of the connecting body; the first connecting piece connects the detection shell with the connecting body through the first threaded hole and the second threaded hole; and a second O-shaped sealing ring is arranged between the detection shell and the connector.
Further, the lower side of the connector is provided with a plurality of third threaded holes, the gas injection valve to be tested is provided with a plurality of fourth threaded holes opposite to the third threaded holes, and the second connecting piece connects the connector and the gas injection valve to be tested through the third threaded holes and the fourth threaded holes.
Furthermore, a plurality of fifth threaded holes are formed in the detection shell, and the third connecting piece fixes the detection shell on the test bench through the fifth threaded holes.
The working principle of the technical scheme is as follows: and selecting a connector with the same size as the interface of the gas injection valve to be detected, inserting the gas injection valve to be detected into the first cavity until the gas injection valve to be detected is abutted against the top of the first cavity, and connecting the gas injection valve to be detected with the connector by using a second connecting piece. Then insert the boss of connector to the second cavity intracavity, until the connector offsets with detecting the casing, then use first connecting piece will detect the casing and be connected with the connector. Then let in the inlet port with experimental gas, when the gas injection valve that awaits measuring opens, experimental gas can be followed the gas outlet blowout of the gas injection valve that awaits measuring and spouted to the piston through connecting the chamber to promote the piston motion, the scale can accomplish the detection along with piston upward movement through the scale of observing on the scale.
The beneficial effects of this technical scheme lie in: detecting casing and connector in this scheme and adopting the modularized design, can be according to the different connector of the interface size replacement of the gas injection valve that awaits measuring to make this device's application scope wider, and only need change the connector can, do not need whole measuring device all to change, consequently practiced thrift the cost. And the lubricating oil groove can realize the lubrication between the piston and the second cavity. And the first oil receiving groove and the second oil receiving groove can prevent lubricating oil from flowing into the gas injection valve to be tested. And a pressure stabilizing cavity is arranged in the connector, so that the pointer of the pressure gauge can be prevented from jumping due to sudden pressure drop when the gas injection valve to be detected is opened, and the detection accuracy is improved. And fifthly, the first O-shaped sealing ring ensures the sealing performance between the connector and the gas injection valve to be detected, and the second O-shaped sealing ring ensures the sealing performance between the connector and the detection shell. And the connecting cavity is set to be of a stepped structure, so that the connecting cavity can correspond to the grooves and the interfaces of the fuel gas injection valve to be tested in different sizes, and accurate communication is realized. The device is low in cost, and multiple devices can be manufactured and placed in an assembly workshop and a test workshop, so that the detection efficiency is improved. The device is simple and convenient to operate, and operators only need to be trained simply.
Drawings
Fig. 1 is a front sectional view of a device for measuring the flow rate of a gas injection valve according to the present invention;
fig. 2 is a bottom view of the device for measuring the flow rate of the gas injection valve of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the detection device comprises a detection shell 1, a connector 2, a gas injection valve 3 to be detected, a piston 4, a scale 5, a lubricating oil groove 6, a first oil receiving groove 7, a second oil receiving groove 8, a second O-shaped sealing ring 9, a first O-shaped sealing ring 10, an air inlet 11, an air inlet window 12, a clamping groove 13, a through hole 14, a first connecting piece 15, a fifth threaded hole 16, a second connecting piece 17, a groove 18, a connecting cavity 19, a second cavity 20 and a pressure stabilizing cavity 21.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment is basically as shown in the attached figures 1-2: a device for measuring the flow of a gas injection valve comprises a detection structure and a plurality of groups of connecting structures, wherein the connecting structures are used for connecting the detection structure with a gas injection valve 3 to be detected, and the connecting structures are detachably connected to the detection structure; the detection structure is used for detecting the flow of the gas injection valve 3 to be detected;
the detection structure comprises a detection shell 1, as shown in fig. 2, a plurality of fifth threaded holes 16 are formed in the detection shell 1, and a third connecting piece fixes the detection shell 1 on a test bench through the fifth threaded holes 16. As shown in fig. 1, the detection housing 1 is provided with a vertical second cavity 20; vertical sealed sliding connection has piston 4 in the second cavity 20, and the top of piston 4 is equipped with scale 5, and specifically, the top of piston 4 is equipped with draw-in groove 13, and scale 5 card is gone into in the draw-in groove 13. The scale 5 is marked with scales. The top of the detection shell 1 is provided with a through hole 14, and the scale 5 can extend out of the through hole 14. Two annular lubricating oil grooves 6 are formed in the circumferential direction of the piston 4, and lubrication between the piston 4 and the second cavity 20 can be achieved.
Every connection structure of group includes connector 2, and the inside of connector 2 is equipped with the first cavity that is used for holding the gas injection valve 3 that awaits measuring, is equipped with three first O shape sealing washers of group 10 in the first cavity, and the leakproofness between connector 2 and the gas injection valve 3 that awaits measuring is realized to first O shape sealing washer 10. The first cavity on the connecting body 2 of each group of connecting structures corresponds to a fuel gas injection valve 3 to be tested with an interface size. The gas injection valve 3 that awaits measuring can dismantle the connection on connector 2, and the downside of connector 2 specifically is equipped with a plurality of third screw holes, is equipped with a plurality of fourth screw holes just right with the third screw hole on the gas injection valve 3 that awaits measuring, and second connecting piece 17 is connected connector 2 and gas injection valve 3 that awaits measuring through third screw hole and fourth screw hole. The inner wall of the first cavity in the connector 2 is provided with a pressure stabilizing cavity 21, the air inlet window 12 of the gas injection valve 3 to be detected can be completely arranged in the pressure stabilizing cavity 21, the pressure stabilizing cavity 21 can prevent a pressure gauge pointer from jumping due to pressure shock when the gas injection valve 3 to be detected is opened, and the detection accuracy is improved. An air inlet 11 is arranged on the connector 2, and the air inlet 11 is communicated with the pressure stabilizing cavity 21. The top of the connecting body 2 is provided with a boss which can be inserted into the second cavity 20 of the detection shell 1. A connecting cavity 19 is arranged inside the connecting body 2, and the connecting cavity 19 is used for communicating the second cavity 20 with the gas outlet of the gas injection valve 3 to be tested. The connecting cavity 19 adopts a ladder type structure; the bottom of the piston 4 is provided with a groove 18, the opening of the groove 18 is the same as the opening on the upper side of the connecting cavity 19, and the opening on the lower side of the connecting cavity 19 is the same as the opening of the air outlet of the gas injection valve 3 to be tested. The top of the boss is provided with a first oil receiving groove 7; the junction of the notch cuttype structure of connecting chamber 19 is equipped with the second and connects oil groove 8, and first oil groove 7 and the second of connecing connect oil groove 8 can avoid lubricating oil to flow into in the gas injection valve 3 that awaits measuring.
A plurality of first threaded holes are formed in the detection shell 1, and second threaded holes corresponding to the first threaded holes are formed in the upper side of the connecting body 2; the first connecting piece 15 connects the detection shell 1 with the connecting body 2 through a first threaded hole and a second threaded hole; a second O-shaped sealing ring 9 is arranged between the detection shell 1 and the connector 2, and the second O-shaped sealing ring 9 realizes the sealing performance between the connector 2 and the detection shell 1.
The first connecting piece 15, the second connecting piece 17 and the third connecting piece are connecting pieces such as bolts or screws.
The specific implementation process is as follows:
selecting a connector 2 with the same interface size as the gas injection valve 3 to be tested, inserting the gas injection valve 3 to be tested into the first cavity until the gas injection valve 3 to be tested is abutted against the top of the first cavity, and connecting the gas injection valve 3 to be tested with the connector 2 by using a second connecting piece 17. Then, the boss of the connecting body 2 is inserted into the second cavity 20 until the connecting body 2 abuts against the detecting housing 1, and then the detecting housing 1 is connected with the connecting body 2 by using the first connecting member 15. Then let in experimental gas in the inlet port 11, when gas injection valve 3 that awaits measuring opens, experimental gas can be followed the gas outlet blowout of gas injection valve 3 that awaits measuring, spout to piston 4 through connecting chamber 19 to promote piston 4 motion, scale 5 can accomplish the detection along with piston 4 upward movement, through observing the scale on the scale 5.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A device for measuring the flow of a gas injection valve is characterized in that: the device comprises a detection structure and a plurality of groups of connecting structures, wherein the connecting structures are used for connecting the detection structure with a gas injection valve (3) to be detected, and the connecting structures are detachably connected to the detection structure; the detection structure is used for detecting the flow of the gas injection valve (3) to be detected; each group of connecting structures comprises a connecting body (2), a first cavity for accommodating the gas injection valve (3) to be tested is arranged in the connecting body (2), and the first cavity on the connecting body (2) of each group of connecting structures corresponds to the gas injection valve (3) to be tested with an interface size; the fuel gas injection valve (3) to be tested is detachably connected to the connecting body (2); the inner wall of a first cavity in the connecting body (2) is provided with a pressure stabilizing cavity (21), and an air inlet window (12) of the fuel gas injection valve (3) to be tested can be completely arranged in the pressure stabilizing cavity (21); an air inlet (11) is arranged on the connecting body (2), and the air inlet (11) is communicated with the pressure stabilizing cavity (21).
2. The device for measuring the flow rate of a gas injection valve according to claim 1, wherein: the detection structure comprises a detection shell (1); the detection shell (1) is provided with a vertical second cavity (20), and an air outlet of the gas injection valve (3) to be detected is aligned to the second cavity (20); vertical sealed sliding connection has piston (4) in second cavity (20), the top of piston (4) is equipped with scale (5), scale has been marked on scale (5), the top of detecting casing (1) is equipped with through-hole (14), scale (5) can stretch out through-hole (14).
3. The device for measuring the flow rate of a gas injection valve according to claim 2, wherein: the top of the connecting body (2) is provided with a boss which can be inserted into the second cavity (20) of the detection shell (1); the connecting body (2) is internally provided with a connecting cavity (19), and the connecting cavity (19) is used for communicating the second cavity (20) with the gas outlet of the gas injection valve (3) to be tested.
4. The device for measuring the flow rate of a gas injection valve according to claim 2, wherein: and an annular lubricating oil groove (6) is formed in the circumferential direction of the piston (4).
5. A device for measuring the flow of a gas injection valve according to claim 3, characterized in that: the connecting cavity (19) adopts a step-shaped structure; the bottom of the piston (4) is provided with a groove (18), the opening of the groove (18) is the same as the opening on the upper side of the connecting cavity (19), and the opening on the lower side of the connecting cavity (19) is the same as the opening of the gas outlet of the gas injection valve (3) to be tested.
6. The device for measuring the flow rate of a gas injection valve according to claim 5, wherein: the top of the boss is provided with a first oil receiving groove (7); and a second oil receiving groove (8) is arranged at the joint of the stepped structure of the connecting cavity (19).
7. The device for measuring the flow rate of a gas injection valve according to claim 1, wherein: a first O-shaped sealing ring (10) is arranged in the first cavity.
8. The device for measuring the flow rate of a gas injection valve according to claim 2, wherein: a plurality of first threaded holes are formed in the detection shell (1), and second threaded holes corresponding to the first threaded holes are formed in the upper side of the connecting body (2); the first connecting piece (15) connects the detection shell (1) with the connecting body (2) through the first threaded hole and the second threaded hole; a second O-shaped sealing ring (9) is arranged between the detection shell (1) and the connecting body (2).
9. The device for measuring the flow rate of a gas injection valve according to claim 2, wherein: the downside of connector (2) is equipped with a plurality of third screw holes, be equipped with a plurality of fourth screw holes just right with the third screw hole on gas injection valve (3) that awaits measuring, second connecting piece (17) are connected connector (2) and gas injection valve (3) that awaits measuring through third screw hole and fourth screw hole.
10. The device for measuring the flow rate of a gas injection valve according to claim 2, wherein: the detection shell (1) is provided with a plurality of fifth threaded holes (16), and the third connecting piece fixes the detection shell (1) on the test bench through the fifth threaded holes (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220832361.2U CN217384695U (en) | 2022-04-12 | 2022-04-12 | Device for measuring flow of fuel gas injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220832361.2U CN217384695U (en) | 2022-04-12 | 2022-04-12 | Device for measuring flow of fuel gas injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217384695U true CN217384695U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220832361.2U Active CN217384695U (en) | 2022-04-12 | 2022-04-12 | Device for measuring flow of fuel gas injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217384695U (en) |
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2022
- 2022-04-12 CN CN202220832361.2U patent/CN217384695U/en active Active
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