CN214663692U - Connecting piece for pressure sensor of LPG small storage tank - Google Patents

Abstract

The utility model relates to a small-size storage tank pressure sensor connecting piece of LPG, it still includes the connecting piece including connecting in the switch valve body of the jar body, and the connecting piece is including the valve siphunculus that is used for connecting switch valve body, the first installation pipe that is used for connecting the manometer to and be used for connecting pressure sensor's second installation pipe, valve siphunculus, first installation pipe and second installation pipe communicate each other. The connecting piece is through first installation pipe intercommunication manometer, through second installation pipe intercommunication pressure sensor to through valve siphunculus intercommunication switch valve body. The pressure gauge and the pressure sensor are arranged on the switch valve body through the connecting piece, the connecting structure of the tank body fitting is simple and compact, and the effects of reducing production materials and occupied space are achieved. The application has the effect of convenient operation.

Description

Connecting piece for pressure sensor of LPG small storage tank

Technical Field

The application relates to the field of gas supply equipment, in particular to a connecting piece of a pressure sensor of an LPG (liquefied petroleum gas) small storage tank.

Background

At present, gas supply skid-mounted equipment is widely used in the gas supply industry and can be used for storing, regulating, converting or conveying gas. The device comprises LPG (LPG, namely liquefied petroleum gas, the main components of which are propane, butane and a small amount of olefin) bottle group skid-mounted equipment, wherein the LPG bottle group skid-mounted equipment is formed by connecting a plurality of LPG steel bottles to a skid-mounted device on a bus pipe through high-pressure rubber pipes, and can supply gas to a low-pressure gas pipeline through forced vaporization or natural vaporization. However, the LPG cylinder group has high gas supply infrastructure cost and high steel cylinder filling and transporting cost, so the use and development of the LPG cylinder group are limited in China.

There is a small-size steel pressure storage tank that the volume is 0.5 m-10 m thin year in the market, because this kind of small-size storage tank compact structure, low in manufacturing cost, occupation area advantage such as few, progressively use widely in rural areas, small town etc. of our country.

In the related art, in order to detect the pressure of the LPG small-sized storage tank when the LPG small-sized storage tank works, a tank body of the LPG small-sized storage tank is generally provided with a pressure detecting accessory such as a pressure gauge and a pressure sensor, and the pressure gauge can be observed by an operator in real time at a close distance; the pressure sensor can be communicated with a remote terminal to realize the online remote monitoring of the operating pressure of the gas supply system. The pressure gauge and the pressure sensor are usually installed separately, wherein the pressure gauge is generally installed directly on a needle valve or a ball valve control valve, and the pressure sensor is generally installed on a needle valve at the outlet of a gas phase valve seat or a needle valve or a ball valve control valve of a low-pressure gas transmission pipeline.

In view of the above-mentioned related art, the tank body is usually provided with a fitting for performing pressure detection, such as a pressure gauge and a pressure sensor, and the inventor believes that the process becomes complicated and the cost increases in the design and manufacturing stage because the pressure sensor and the pressure gauge are respectively communicated with different positions of the tank body, and the pressure sensor and the pressure gauge are respectively switched on and off through different valves, and the user needs to respectively open a valve connected with the pressure sensor and a valve connected with the pressure gauge in working, which is not convenient enough.

SUMMERY OF THE UTILITY MODEL

To facilitate design, manufacture and user operation, the present application provides an LPG compact tank pressure sensor connection.

The application provides a small-size storage tank pressure sensor connecting piece of LPG adopts following technical scheme:

the utility model provides a small-size storage tank pressure sensor connecting piece of LPG, is including connecting in the switch valve body of the jar body, still includes the connecting piece, the connecting piece is including being used for connecting switch valve body's valve siphunculus, the first installation pipe that is used for connecting the manometer to and be used for connecting pressure sensor's second installation pipe, valve siphunculus, first installation pipe and second installation pipe communicate each other.

Through adopting above-mentioned technical scheme, the connecting piece is through first installation pipe intercommunication manometer, through second installation pipe intercommunication pressure sensor to through valve siphunculus intercommunication switch valve body. After the user opens the switch valve body, the pressure gauge and the pressure sensor can be respectively communicated with the tank body; after the user closes the switch valve body, the communication between the pressure gauge and the tank body or the communication between the pressure sensor and the tank body can be simultaneously blocked, so that the operation of the user is facilitated. The pressure gauge and the pressure sensor are arranged on the switch valve body through the connecting piece, the connecting structure of the tank body fitting is simple and compact, the effects of reducing production materials and occupied space are achieved, and design and manufacturing are facilitated.

Optionally, the connecting piece includes a connecting pipe, the first mounting pipe and the second mounting pipe are respectively disposed at two ends of the connecting pipe, and the valve through pipe is disposed on a circumferential side wall of the connecting pipe; the first installation pipe, the second installation pipe, the valve through pipe and the connecting pipes are communicated with each other.

Through adopting above-mentioned technical scheme, first installation pipe and second installation pipe set up respectively in the both ends of connecting pipe, and the space that supplies the manometer installation can be left between first installation pipe and second installation pipe to the connecting pipe, and the orientation of the user of being convenient for adjusts the manometer observation face.

Optionally, the first mounting pipe is provided with a first threaded portion, and the first threaded portion is in threaded connection with a first movable joint capable of being in threaded connection with the pressure gauge.

By adopting the technical scheme, the first movable joint is respectively in threaded connection with the first threaded part and the pressure gauge, so that the connecting piece and the pressure gauge are detachably connected; the mode that the user accessible twisted first loose joint soon accomplishes the installation or dismantlement between connecting piece and the manometer, and the person of facilitating the use dismantles the censorship to the manometer.

Optionally, the second mounting pipe is provided with a second threaded portion, and the second threaded portion is in threaded connection with a second union that can be in threaded connection with the pressure sensor.

By adopting the technical scheme, the second movable joint is respectively in threaded connection with the second threaded part and the pressure sensor, so that the connecting piece and the pressure sensor are detachably connected; the user can complete the installation or the disassembly between the connecting piece and the pressure sensor by screwing the second movable joint.

Optionally, the first threaded portion and the second threaded portion are M20 × 1.5 threads, respectively.

Through adopting above-mentioned technical scheme, first screw thread portion, second screw thread portion all adopt M20 1.5 screw thread, and the matching commonality is strong, all can match the installation to the jar body that multiple volume is different and use, has reduced the step of adjustment structure size, has simplified the procedure of design and manufacture.

Optionally, the valve siphunculus is provided with third screw thread portion, switch valve body is provided with and is used for connecting the gas outlet of valve siphunculus, gas outlet threaded connection have can with third screw thread portion threaded connection's connector.

By adopting the technical scheme, the connector is respectively in threaded connection with the third threaded part and the switch valve body, so that the connecting piece and the switch valve body are detachably connected; the user can finish the installation or the disassembly between the connecting piece and the switch valve body by screwing the connector.

Optionally, the switch valve body is provided with an air inlet for connecting the tank body, the air inlet with be parallel to each other between the first installation pipe, the air inlet with mutually perpendicular between the gas outlet.

Through adopting above-mentioned technical scheme, when the air inlet was installed on the gaseous phase disk seat export of the jar body with the horizontal direction, first installation pipe set up with vertical direction, and the person of facilitating the use observes the manometer.

Optionally, the second mounting pipe is located at one end of the connecting pipe close to the air inlet, and the minimum distance between the first mounting pipe and the valve through pipe is greater than the minimum distance between the second mounting pipe and the valve through pipe.

Through adopting above-mentioned technical scheme, in the small-size storage tank accessory of LPG commonly used, pressure sensor's volume is little than the manometer, and the air inlet sets up the position that switch valve body is close to the second installation pipe, can increase the mountable space of the gaseous phase disk seat export of connecting the air inlet, reduces the interference between the small-size storage tank accessory of LPG and the gaseous phase disk seat export. In addition, the whole formed among the first mounting pipe, the second mounting pipe and the connecting pipe reduces the space occupation of one end of the switch valve body close to the air inlet, and further enlarges the mountable space near the air inlet.

Optionally, the switch valve body is provided with an air inlet for connecting the tank body, and the air inlet, the second mounting pipe and the air outlet are parallel to each other.

Through adopting above-mentioned technical scheme, when the air inlet was installed on the gaseous phase disk seat export of the jar body with vertical direction, first installation pipe set up with vertical direction, and the person of facilitating the use observes the manometer.

Optionally, the connecting member is made of 304 stainless steel.

By adopting the technical scheme, the corrosion resistance, the heat resistance and the low-temperature strength of the connecting piece are enhanced.

Drawings

FIG. 1 is a front view of an LPG compact tank pressure sensor connection of embodiment 1 of this application.

Fig. 2 is a schematic connection diagram of the switch valve body, the connecting piece and the pressure gauge in embodiment 1 of the present application.

Fig. 3 is a schematic diagram of the exploded structure of fig. 2.

Fig. 4 is a schematic connection diagram of the switch valve body, the connecting piece and the pressure gauge in embodiment 2 of the present application.

Fig. 5 is a schematic diagram of the exploded structure of fig. 4.

Description of reference numerals:

1. a tank body; 11. a gas phase valve seat outlet; 12. a low pressure gas transmission pipeline; 2. a switch valve body; 21. an air outlet; 22. a switch member; 23. an air inlet; 3. a connecting member; 31. a first mounting tube; 311. a first threaded portion; 32. a second mounting tube; 321. a second threaded portion; 33. a valve through pipe; 331. a third threaded portion; 34. a connecting pipe; 4. a pressure gauge; 41. a first movable joint; 5. a pressure sensor; 51. a second movable joint; 6. a connector; 61. mounting holes; 62. a fixed part.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses small-size storage tank pressure sensor connecting piece of LPG.

Example 1

Referring to fig. 1, the LPG small tank pressure sensor connection member includes a switching valve body 2 for connecting a tank body 1, and a connection member 3 for connecting an LPG small tank fitting; in the present embodiment, the LPG small tank fitting includes a pressure gauge 4 and a pressure sensor 5; the connecting piece 3 is connected with the switch valve body 2, so that the pressure gauge 4 and the pressure sensor 5 are respectively connected with the tank body 1.

Referring to fig. 2, in the present embodiment, the design pressure of the connection member 3 is greater than or equal to 2.5 Mpa; the material of the connecting member 3 can be selected from, but not limited to, 304 stainless steel, and the corrosion resistance, heat resistance and low-temperature strength of the connecting member 3 are enhanced. The connecting piece 3 comprises a first mounting pipe 31 for connecting the pressure gauge 4, a second mounting pipe 32 for connecting the pressure sensor 5, a valve through pipe 33 for connecting the switch valve body 2, and a connecting pipe 34 for connecting the first mounting pipe 31, the second mounting pipe 32 and the valve through pipe 33. First installation pipe 31, second installation pipe 32, valve through pipe 33, connecting pipe 34 are fixed through welded mode, and wherein first installation pipe 31 and second installation pipe 32 communicate respectively in the both ends of connecting pipe 34, and valve through pipe 33 communicates in the circumference lateral wall of connecting pipe 34.

Referring to fig. 2, in the present embodiment, the first mounting pipe 31, the second mounting pipe 32 and the valve-through pipe 33 are parallel to each other, and the first mounting pipe 31 and the connection pipe 34 are perpendicular to each other, so that the connection member 3 forms a three-way pipe structure having a Y-shape as a whole. After passing through the switch valve body 2, the petroleum gas in the tank body 1 can enter the connecting pipe 34 through the valve through pipe 33, and then is respectively conveyed towards two ends of the connecting pipe 34, namely towards the first mounting pipe 31 and the second mounting pipe 32. On the other hand, the first mounting pipe 31 and the second mounting pipe 32 are respectively arranged at two ends of the connecting pipe 34, so that a space for mounting the pressure gauge 4 is reserved between the first mounting pipe 31 and the second mounting pipe 32, a user can conveniently adjust the rotation angle between the pressure gauge 4 and the first mounting pipe 31, and the orientation of the observation surface of the pressure gauge 4 can be adjusted by the user.

Referring to fig. 3, the first mounting pipe 31 is provided with threads on the outer side of the end away from the connecting pipe 34 to form a first threaded portion 311, and the first threaded portion 311 is formed by a type M20 × 1.5 threads, and the first threaded portion 311 is detachably connected with the first union 41. The first union 41 is annular, and an inner ring of the first union 41 is provided with a thread. The connecting end of manometer 4 is provided with the screw thread, and manometer 4 passes through connecting end threaded connection in first union 41, and first installation pipe 31 passes through first screw portion 311 threaded connection in first union 41, makes manometer 4 and first installation pipe 31 relatively fixed and intercommunication.

Referring to fig. 3, a user may complete the installation or removal of the pressure gauge 4 and the first union 41 by screwing the pressure gauge 4; the user can also complete the mounting or dismounting between the first union 41 and the first mounting tube 31 by screwing the first union 41. At the in-process of the normal work of manometer 4, the user generally need once overhaul manometer 4 every half a year, and manometer 4 can be dismantled through first loose joint 41 with first installation pipe 31 and be connected, and the person of facilitating the use installs or dismantles manometer 4, has improved operating efficiency.

Referring to fig. 3, the outer side of the second mounting pipe 32 away from the end of the connecting pipe 34 is provided with threads to form a second threaded portion 321, and the second threaded portion 321 is selected from national standard M20 × 1.5 threads, and the second movable joint 51 is detachably connected to the second threaded portion 321. The second union 51 is annular, and an inner ring of the second union 51 is provided with a screw thread. The connecting end of the pressure sensor 5 is provided with threads, the pressure sensor 5 is connected into the second movable joint 51 through the connecting end threads, and the second mounting pipe 32 is connected into the second movable joint 51 through the second thread part 321 threads, so that the pressure sensor 5 and the second mounting pipe 32 are relatively fixed and communicated.

Referring to fig. 3, a user may complete the mounting or dismounting between the pressure sensor 5 and the second movable joint 51 by screwing the pressure sensor 5; the user can also complete the mounting or dismounting between the second movable joint 51 and the second mounting tube 32 by screwing the second movable joint 51.

Referring to fig. 1 and 3, in the present embodiment, both the first and second joints 41 and 51 may employ female threaded joints. First screw thread portion 311 and second screw thread portion 321 adopt national standard M20 x 1.5 screw respectively, for one kind of national standard general screw thread, match the commonality strong, to the jar body 1 of multiple volume difference, jar body 1 only need set up corresponding connection structure can match the installation, has simplified the procedure of manufacturing and designing.

Referring to fig. 3, the outer side of the valve-through pipe 33 away from the end of the connection pipe 34 is provided with threads to form a third threaded portion 331, and the second threaded portion 321 is selected from national standard M20 × 1.5 threads, and the connection head 6 is detachably connected to the third threaded portion 331. The connector 6 is hollow, a mounting hole 61 is formed in one end, close to the valve through pipe 33, of the connector 6, and threads are formed in the inner wall of the mounting hole 61 and used for being in threaded connection with the third threaded portion 331; the outer side of the end of the connector 6 far away from the mounting hole 61 is provided with a thread to form a fixing part 62.

Referring to fig. 3, the upper surface of the switch valve body 2 is opened with an air outlet 21, and the inner wall of the air outlet 21 is provided with a thread for the fixing portion 62 to be connected with the thread. The connector 6 is in threaded connection with the fixing portion 62 through the air outlet 21, and the connector 6 is in threaded connection with the third threaded portion 331 through the mounting hole 61, so that the valve through pipe 33, the switch valve body 2 and the connector 6 are relatively fixed and communicated with each other. One side of the switch valve body 2 is rotatably connected with a switch piece 22, and one side of the switch valve body 2 is provided with an air inlet 23 used for connecting the tank body 1. In the present embodiment, the switch valve body 2 is connected to the gas phase valve seat outlet 11 of the tank 1; in other embodiments, the switch valve body 2 can also be connected to high-low pressure gas transmission pipelines of a gas supply system, and a user can adjust the switch valve body according to the actual installation position or the pressure range of the gas.

Referring to fig. 3, in the present embodiment, the switch valve body 2 may be selected from, but not limited to, a needle valve; the connector 6 may be selected from, but not limited to, a male connector.

Referring to fig. 1 and 3, in an operating state, after a user opens the switch valve body 2 by screwing the switch member 22, gas in the tank body 1 can be supplied to the valve through pipe 33 through the switch valve body 2, that is, a gas passage between the tank body 1 and the pressure gauge 4 and a gas passage between the tank body 1 and the pressure sensor 5 are simultaneously opened, so that the pressure of the pressure gauge 4 and the pressure sensor 5 are respectively detected; after the work is finished, the user can close the switch valve body 2 by screwing the switch piece 22, and the communication between the tank body 1 and the valve through pipe 33 is blocked, namely, the gas channel between the tank body 1 and the pressure gauge 4 and the gas channel between the tank body 1 and the pressure sensor 5 are closed at the same time.

Referring to fig. 3, on the other hand, a user can complete the installation or the removal between the valve through pipe 33 and the switch valve body 2 by screwing the connector 6, so that the user can replace the switch valve body 2 with different pressure levels according to actual requirements.

Referring to fig. 3, in the embodiment, the axis of the air outlet 21 and the axis of the air inlet 23 are perpendicular to each other. After the gas inlet 23 and the gas phase valve seat outlet 11 are installed, the gas inlet 23 is coaxial with the gas phase valve seat outlet 11; when the air inlet 23 is connected to the gas phase valve seat outlet 11 arranged in the horizontal direction, the air inlet 23 is arranged in the horizontal direction, and the first mounting pipe 31 is arranged in the vertical direction, so that the pressure gauge 4 can be arranged in the vertical direction, and the operator can directly observe the observation surface of the pressure gauge 4 conveniently.

Referring to fig. 2, further, the second mounting pipe 32 is disposed at one end of the connecting pipe 34 close to the air inlet 23, that is, the air inlet 23 is located right below the second mounting pipe 32, and the minimum distance between the first mounting pipe 31 and the valve-through pipe 33 is greater than the minimum distance between the second mounting pipe 32 and the valve-through pipe 33.

Referring to fig. 3, in an actual condition, the volume of the pressure sensor 5 is generally smaller than that of the pressure gauge 4, and the gas inlet 23 is provided at a position of the switching valve body 2 close to the second mounting pipe 32, so that a mounting space of the gas valve seat outlet 11 connected to the gas inlet 23 can be increased, and interference between the fitting and the gas valve seat outlet 11 can be reduced. In addition, the whole formed among the first mounting pipe 31, the second mounting pipe 32 and the connecting pipe 34 reduces the space occupied at one end of the switch valve body 2 close to the air inlet 23, and further enlarges the mountable space near the air inlet 23.

The implementation principle of the embodiment 1 is as follows: in the design and manufacture process of the LPG small storage tank, installation space can be reserved for the connecting piece 3 and the switch valve seat when the tank body 1 is designed. After the manufacturing is completed, the pressure gauge 4 is connected to the first mounting pipe 31, the pressure sensor 5 is connected to the second mounting pipe 32, the valve-through pipe 33 is connected to the switch valve body 2, and the switch valve body 2 is connected to the gas valve seat outlet 11 of the can body 1, so that the pressure gauge 4 and the pressure sensor 5 are connected to the can body 1, respectively. After a user opens the switch valve body 2, the pressure gauge 4 and the pressure sensor 5 can be respectively communicated with the tank body 1; after the user closes the switch valve body 2, the communication between the pressure gauge 4 and the tank body 1 or the communication between the pressure sensor 5 and the tank body 1 can be blocked simultaneously, so that the operation of the user is facilitated. The pressure gauge 4 and the pressure sensor 5 are arranged on the switch valve body 2 through the connecting piece 3, the connecting structure of the tank body 1 fitting is simple and compact, and the effects of reducing production materials and occupied space are achieved. On the other hand, first screw portion 311 and second screw portion 321 adopt national standard M20 × 1.5 screw respectively, for one kind of national standard general screw thread, match the commonality strong, to the jar body 1 of multiple volume difference, jar body 1 only need set up corresponding connection structure can match the installation, has simplified the procedure of design and manufacture.

Example 2

Referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that: the axis of the air outlet 21 coincides with the axis of the air inlet 23. In the embodiment, the on-off valve seat is connected to the low pressure gas transmission pipe 12 of the gas supply system through a three-way valve, and the low pressure gas transmission pipe 12 is arranged in a horizontal direction.

The implementation principle of the embodiment 2 is as follows: after the air inlet 23 and the low-pressure gas transmission pipeline 12 are installed, the air inlet 23 is coaxial with the low-pressure gas transmission pipeline 12; when the air inlet 23 is connected to be set up on low pressure gas transmission pipeline 12 with vertical direction, air inlet 23 sets up with vertical direction, and first installation pipe 31 sets up with vertical direction, makes manometer 4 can place by vertical direction, makes things convenient for operating personnel direct observation manometer 4's observation face.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a small-size storage tank pressure sensor connecting piece of LPG, is including connecting in the switch valve body (2) of jar body (1), its characterized in that: still include connecting piece (3), connecting piece (3) are including being used for connecting the valve siphunculus (33) of switch valve body (2), be used for connecting first installation pipe (31) of manometer (4) to and be used for connecting second installation pipe (32) of pressure sensor (5), valve siphunculus (33), first installation pipe (31) and second installation pipe (32) communicate each other.

2. The LPG small tank pressure sensor connection according to claim 1, wherein: the connecting piece (3) comprises a connecting pipe (34), the first mounting pipe (31) and the second mounting pipe (32) are respectively arranged at two ends of the connecting pipe (34), and the valve through pipe (33) is arranged on the circumferential side wall of the connecting pipe (34); the first installation pipe (31), the second installation pipe (32), the valve through pipe (33), and the connection pipe (34) communicate with each other.

3. The LPG small tank pressure sensor connection according to claim 1, wherein: the first mounting pipe (31) is provided with a first threaded portion (311), and the first threaded portion (311) is in threaded connection with a first movable joint (41) capable of being in threaded connection with a pressure gauge (4).

4. The LPG small tank pressure sensor connection according to claim 3, wherein: the second mounting pipe (32) is provided with a second threaded portion (321), and a second movable joint (51) which can be in threaded connection with the pressure sensor (5) is in threaded connection with the second threaded portion (321).

5. The LPG small tank pressure sensor connection of claim 4, wherein: the first threaded part (311) and the second threaded part (321) are respectively M20 x 1.5 threads.

6. The LPG small tank pressure sensor connection according to claim 2, wherein: valve siphunculus (33) are provided with third screw thread portion (331), switch valve body (2) are provided with and are used for connecting gas outlet (21) of valve siphunculus (33), gas outlet (21) threaded connection have can with third screw thread portion (331) threaded connection's connector (6).

7. The LPG small tank pressure sensor connection according to claim 6, wherein: the switch valve body (2) is provided with an air inlet (23) used for being connected with the tank body (1), the air inlet (23) is parallel to the first mounting pipe (31), and the air inlet (23) is perpendicular to the air outlet (21).

8. The LPG small tank pressure sensor connection according to claim 7, wherein: the second installation pipe (32) is located at one end, close to the air inlet (23), of the connecting pipe (34), and the minimum distance between the first installation pipe (31) and the valve through pipe (33) is larger than the minimum distance between the second installation pipe (32) and the valve through pipe (33).

9. The LPG small tank pressure sensor connection according to claim 6, wherein: the switch valve body (2) is provided with an air inlet (23) used for being connected with the tank body (1), and the air inlet (23), the first mounting pipe (31) and the air outlet (21) are parallel to each other.

10. The LPG small tank pressure sensor connection according to claim 1, wherein: the connecting piece (3) is made of 304 stainless steel.

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