CN216695385U

CN216695385U - Pressure sensor for gas water heater

Info

Publication number: CN216695385U
Application number: CN202123056426.3U
Authority: CN
Inventors: 陈华强; 陈鸿
Original assignee: Zhejiang Huadi Electronic Co ltd
Current assignee: Zhejiang Huadi Electronic Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-06-07
Anticipated expiration: 2031-12-08

Abstract

The utility model relates to the technical field of pressure sensors, in particular to a pressure sensor for a gas water heater, which comprises a first shell and a second shell, wherein the first shell and the second shell are fixedly connected through bolts, a detection port is arranged on one side of the second shell, which is far away from the first shell, a first diaphragm is arranged on the inner side of the first shell, a second diaphragm is arranged on the inner side of the second shell, mounting grooves are formed in one sides, which are close to the first shell and the second shell, of the first shell, a gas sensor is arranged between the two mounting grooves, and a moving part is arranged on one side, which is far away from the second diaphragm, of the first diaphragm, a fuel sensor is arranged between the two diaphragms, the fuel sensor can detect fuel when the second diaphragm is damaged, and a pressure controller outputs an alarm instruction to remind of maintaining the pressure sensor, and the first diaphragm is still intact, avoid the gas to get into electrified side and produce the potential safety hazard.

Description

Pressure sensor for gas water heater

Technical Field

The utility model relates to the technical field of pressure sensors, in particular to a pressure sensor for a gas water heater.

Background

Current patent CN206756365U discloses a pressure sensor for gas heater and gas heater that has it, it can monitor the gas pressure condition of entrance point through pressure sensor in order to make gas heater operation to the instruction that sends is clear and definite, and convenience of customers looks over the fault reason, reduces the number of times of reporting to the company for repairment, avoids the waste of after-sales resources, but it still exists not enoughly in the use: the natural gas contains a large amount of impurities including solid, liquid and gas impurities, such as silt particles, water, oil, hydrogen sulfide, heavy hydrocarbon and the like, the impurities cause abrasion and corrosion to the flexible diaphragm along with the natural gas transportation process, once the flexible diaphragm is abraded and broken, the natural gas can pass through the flexible diaphragm to enter a charged side except for the failure of the pressure sensor, great potential safety hazards are generated, and the natural gas is necessary to be further improved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming the shortcomings of the prior art as discussed in the background of the utility model and providing a pressure sensor for a gas water heater.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a pressure sensor for gas heater, includes casing one and casing two, casing one and casing two pass through bolt fixed connection to one side that casing one was kept away from to casing two is provided with the detection mouth, the inboard of casing one is provided with diaphragm one, and the inboard of casing two is provided with diaphragm two, casing one all is provided with the mounting groove with one side that casing two phase is close to be provided with gas sensor between two mounting grooves, one side that diaphragm two was kept away from to diaphragm one is provided with the moving part, one side that casing two was kept away from to casing one is provided with micro-gap switch to be provided with the contact between micro-gap switch and the moving part, be provided with the spring between one side of diaphragm one and the inboard of casing one, micro-gap switch is connected with pressure controller to pressure controller is connected with gas sensor.

Preferably, the first housing is in threaded connection with a first crimp ring on the inner side, the second housing is in threaded connection with a second crimp ring on the inner side, and the gas sensor is located between the first crimp ring and the second crimp ring.

Preferably, the outer sides of the first shell and the second shell are both provided with connecting holes, and a sealing ring is arranged between the first shell and the second shell.

Preferably, the pressure controller is connected with an alarm.

Preferably, the microswitch is a normally closed switch.

The utility model has at least the following beneficial effects:

through setting up two diaphragm structures to set up between two diaphragms and fire the sensor, can detect the gas by gas sensor when diaphragm two takes place the damage, and export alarm instruction through pressure controller, in order to remind the maintenance of carrying out pressure sensor, diaphragm one still remains intact this moment, avoids the gas to get into electrified side and produces the potential safety hazard.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the structure of the present invention;

fig. 2 is a partial enlarged view of the utility model at a in fig. 1.

In the figure: 1. a first shell; 2. a second shell; 3. a detection port; 4. a first diaphragm; 5. a second diaphragm; 6. mounting grooves; 7. a gas sensor; 8. a movable member; 9. a microswitch; 10. a contact; 11. a spring; 12. a pressure controller; 13. a first crimp ring; 14. a second crimp ring; 15. connecting holes; 16. and (5) sealing rings.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-2, a pressure sensor for a gas water heater comprises a first shell 1 and a second shell 2, wherein the first shell 1 and the second shell 2 are fixedly connected through bolts, a detection port 3 is arranged on one side of the second shell 2 far away from the first shell 1, a first diaphragm 4 is arranged on the inner side of the first shell 1, a second diaphragm 5 is arranged on the inner side of the second shell 2, mounting grooves 6 are arranged on one sides of the first shell 1 and the second shell 3 close to each other, a gas sensor 7 is arranged between the two mounting grooves 6, a moving part 8 is arranged on one side of the first diaphragm 4 far away from the second diaphragm 5, a micro switch 9 is arranged on one side of the first shell 1 far away from the second shell 2, a contact 10 is arranged between the micro switch 9 and the moving part 8, a spring 11 is arranged between one side of the first diaphragm 4 and the inner side of the first shell 1, and the micro switch 9 is connected with a pressure controller 12, and the pressure controller 12 is connected with the gas sensor 7, the detection port 3 is communicated with a gas conveying pipeline, and the gap between the first diaphragm 4 and the second diaphragm 5 is not more than 5 mm.

The scheme has the following working processes:

during the use, the gas gives two pressures of diaphragm through detecting port 3, make two 5 of diaphragms take place deformation, and then drive diaphragm 4 and produce deformation, send pressure signal when driving moving part 8 displacement and touching micro-gap switch 9, control and trigger principle are unanimous with prior art, no longer give details, and after two 5 of diaphragms are worn and corroded the damage appear, the gas can be seen through diaphragm two 5 and gets into between diaphragm one 4 and diaphragm two 5, detect the gas by gas sensor 7, then trigger the alarm instruction through pressure controller 12, report to the police through the alarm and remind and carry out pressure sensor's timely maintenance, diaphragm one 4 still is in under this state, in order to avoid the gas to see through diaphragm one 4 and get into electrified side, pressure sensor's safety in utilization has been strengthened.

Further, the inner side of the first shell 1 is in threaded connection with a first pressure joint ring 13, the inner side of the second shell 2 is in threaded connection with a second pressure joint ring 14, and the gas sensor 7 is located between the first pressure joint ring 13 and the second pressure joint ring 14.

Furthermore, the outer sides of the first shell 1 and the second shell 2 are both provided with a connecting hole 15, a sealing ring 16 is arranged between the first shell 1 and the second shell 2, and the sealing ring 16 ensures the connection sealing performance between the first shell 1 and the second shell 2.

Further, the pressure controller 12 is connected to an alarm, and the alarm outputs an alarm to prompt maintenance of the pressure sensor.

Further, the micro switch 9 is a normally closed switch.

While there have been shown and described what are at present considered the fundamental principles of the utility model, the essential features and advantages thereof, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A pressure sensor for a gas water heater comprises a first shell (1) and a second shell (2), and is characterized in that the first shell (1) and the second shell (2) are fixedly connected through bolts, a detection port (3) is formed in one side, far away from the first shell (1), of the second shell (2), a first diaphragm (4) is arranged on the inner side of the first shell (1), a second diaphragm (5) is arranged on the inner side of the second shell (2), mounting grooves (6) are formed in one sides, close to the first shell (1) and the second shell (2), of the first shell (1), a gas sensor (7) is arranged between the two mounting grooves (6), a moving part (8) is arranged on one side, far away from the second diaphragm (5), of the first shell (1) is provided with a microswitch (9), and a contact (10) is arranged between the microswitch moving part (9) and the microswitch (8), a spring (11) is arranged between one side of the first diaphragm (4) and the inner side of the first shell (1), the microswitch (9) is connected with a pressure controller (12), and the pressure controller (12) is connected with the gas sensor (7).

2. A pressure sensor for a gas water heater according to claim 1, characterized in that the first crimp ring (13) is screwed to the inner side of the first housing (1) and the second crimp ring (14) is screwed to the inner side of the second housing (2), the gas sensor (7) being located between the first crimp ring (13) and the second crimp ring (14).

3. A pressure sensor for a gas water heater according to claim 1, characterized in that the outer sides of the first casing (1) and the second casing (2) are provided with connection holes (15), and a sealing ring (16) is arranged between the first casing (1) and the second casing (2).

4. A pressure sensor for a gas water heater according to claim 1, characterized in that an alarm is connected to the pressure controller (12).

5. A pressure sensor for a gas water heater according to claim 1, characterized in that the microswitch (9) is a normally closed switch.