Gas distributor for standard gas with different concentration gradients
By designing a gradient gas distribution meter for different concentrations of standard gas, using the mixing and dilution technology of air and standard gas, the problem of increasing costs of standard gases of multiple specifications is solved, and the effect of cost saving and service life is achieved.
Patent Information
- Application Number
- CN202420835162.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-04-22
AI Technical Summary
In the prior art, it is necessary to use a variety of specifications of standard gases, resulting in an increase in storage tank costs and thus increasing production and use costs.
A standard gas gas distribution meter is designed to mix through the air inlet pipe and the standard gas inlet pipe, and the gas flow is controlled by using the first electronic flowmeter and the second electronic flowmeter to dilute the high concentration of the standard gas to the required concentration, reducing the number of standard gas cylinders.
By using only one high concentration standard gas, mixing and diluting of standard gases at different concentrations is achieved, the number of standard gas cylinders is reduced, production cost is reduced, and the service life of the device is extended through the buffer mechanism.
Smart Images
Figure CN222804999U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of standard gas distribution devices, in particular to a standard gas distribution instrument with different concentration gradients. Background Art
[0002] Standard gas stands for standard gas. Standard gas is a standard substance. Standard substances are very uniform, stable and accurate measurement standards. Their basic task is to reproduce, store and transmit quantity values. They are used in the fields of physical, chemical, biological and technical measurement to calibrate measuring instruments and measurement processes, evaluate the accuracy of measurement methods and the detectability of test laboratories, determine the characteristic quantity values of materials or products, and determine quantity values.
[0003] Standard gas has various specifications, and different specifications of standard gas are also needed in the industry. The current practice is to directly purchase standard gas of various specifications. Since purchasing standard gas of various specifications will incur the cost of multiple storage tanks, the cost of production and use will increase. Utility Model Content
[0004] In view of the above-mentioned defects, the utility model provides a gas distributor with different concentration gradients of standard gas to solve the problem of increased production and use costs in the prior art.
[0005] The utility model is implemented using the following technical solutions: a gas distribution instrument for standard gas with different concentration gradients, comprising a box body, an air pump fixedly installed in the box body, one end of the air pump connected to one end of an air inlet pipe, the other end of the air inlet pipe extends to the outside of the box body, the other end of the air pump is connected to one end of a first electronic flowmeter through an air supply pipe, the other end of the first electronic flowmeter is connected to a first section of a three-way valve through the air supply pipe, the second end of the three-way valve is connected to one end of a second electronic flowmeter through the air supply pipe, the other end of the second electronic flowmeter is connected to one end of the standard gas inlet pipe, the other end of the standard gas inlet pipe passes through the box body and extends to the outside of the box body, the third end of the three-way valve is connected to one end of an air outlet pipe, the other end of the air outlet pipe passes through the box body and extends to the outside of the box body; a power supply module is also installed in the box body, and the power supply module is electrically connected to the first electronic flowmeter, the second electronic flowmeter and the air pump.
[0006] Furthermore, one side of the box body is hinged to one side of the box door, and the other side of the box body cooperates with the other side of the box door through a switch.
[0007] Furthermore, a display screen is fixedly mounted on the box door, and the display screen is electrically connected to the power module; a controller is also fixedly mounted on the box body, and the controller is electrically connected to the power module, the first electronic flow meter, the second electronic flow meter, and the air pump display screen.
[0008] Furthermore, a buffer mechanism is installed on the box door.
[0009] Furthermore, the buffer mechanism includes a second mounting seat, one end of the second mounting seat is hinged to one end of a guide cylinder, the other end of the second mounting seat is fixedly installed with a fixed shaft, the other end of the guide cylinder is slidably installed with a guide column, the end of the guide column away from the guide cylinder is hinged to the middle part of the mounting arm, one end of the mounting arm is rotatably connected to the fixed shaft, and the other end of the mounting arm is rotatably installed with a roller; a first mounting seat is fixedly installed on the box body, a buffer guide rail matching the roller is installed on the first mounting seat, one end of a torsion spring is fixedly installed on the fixed shaft, and the other end of the torsion spring is fixedly connected to the mounting arm.
[0010] Furthermore, the mounting arm is in a "V" shape.
[0011] Furthermore, a filter is installed between the air inlet pipe and the air pump, and the filter is connected to the air pump through an air supply pipe.
[0012] Furthermore, a condenser is installed between the filter and the air pump. The filter and the condenser, and the condenser and the air pump are connected through an air pipe. The condenser is electrically connected to the power module and the controller.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. This device uses only one high-concentration standard gas, mixes it through the air inlet pipe and the standard gas inlet pipe, and controls the amount of incoming air and standard gas through the first electronic flow meter and the second electronic flow meter, so as to dilute the high-concentration standard gas to the required concentration for use; by using only one specification of standard gas, the number of standard gas bottles is reduced, thereby reducing the cost generated by multiple standard gas bottles, which is more economical.
[0015] 2. A buffer mechanism is used to buffer the closing of the door, thereby preventing the display screen and internal electronic components from being damaged due to excessive vibration when the door is closed; the buffer mechanism can further increase the service life of the device.
[0016] The following is a further description of a gas distributor with different concentration gradients of standard gas according to the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a first-view isometric view of a gas distribution instrument with different concentration gradients of standard gas according to the utility model;
[0018] Figure 2 It is the axonometric drawing of the utility model from the second viewing angle;
[0019] Figure 3 It is a schematic diagram of the internal structure of the box;
[0020] Figure 4 It is a first-person perspective isometric view of the buffer mechanism;
[0021] Figure 5 It is the second viewing angle axis side of the buffer mechanism.
[0022] In the figure: 1-box body, 11-display screen, 12-box door, 13-first through hole, 14-second through hole, 15-switch, 16-third through hole; 2-buffer mechanism, 21-buffer guide rail, 22-first mounting seat, 23-second mounting seat, 24-roller, 25-mounting arm, 26-torsion spring, 27-guide cylinder, 28-guide column, 29-fixed axis; 3-power module, 31-condenser, 32-filter, 33-air inlet pipe, 34-first electronic flowmeter, 35-standard gas inlet pipe, 36-air outlet pipe, 37-three-way valve, 38-second electronic flowmeter, 39-air pump. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific examples described here are only used to explain the utility model and are not used to limit the utility model.
[0024] like Figures 1 to 5 As shown, the utility model provides a gas distribution instrument with different concentration gradients of standard gas, including a box body 1, one side of the box body 1 is hinged with one side of a box door 12 through a hinge, and the other side of the box body 1 and the other side of the box door 12 are used in conjunction with a switch 15. The switch 15 in the device adopts the most common snap-on switch 15, such as Figure 2 As shown, a snap-fitting portion of a switch 15 is installed on the box body 1, and a lock is installed on the box door 12. The snap-fitting portion can lock the lock to close the box door 12, and opening the lock can open the box door 12. The switch 15 can make it easier to open the box door 12 so that the internal situation can be better checked. Closing the box door 12 can better protect the electronic components inside the box body 1.
[0025] A first through hole 13 and a second through hole 14 are provided on one side of the housing 1, and a third through hole 16 is provided on the other side. An air inlet pipe 33 is installed on the first through hole 13. One end of the air inlet pipe 33 is located on the outside of the housing 1, and the other end of the air inlet pipe 33 is installed on the filter 32. Impurities such as particulate matter in the air can be filtered out by the filter 32, so as to prevent the particulate matter from affecting subsequent electronic components and the influence of the dilution of the standard gas. The filter 32 is connected to a condenser 31 through an air supply pipe. The condenser 31 can convert moisture in the air into liquid state, which is then absorbed by the desiccant in the condenser 31, thereby drying the air. The condenser 31 is connected to an air pump 39 through an air supply pipe. The air pump 39 is connected to a second electronic flow meter 38 through an air supply pipe. The second electronic flow meter 38 is connected to a first end of a three-way valve 37 through an air supply pipe. A standard gas inlet pipe 35 is installed, one end of which is located outside the box body 1, and a second electronic flow meter 38 is installed at the other end of the standard gas inlet pipe 35. The second electronic flow meter 38 is connected to the second end of the three-way valve 37 through the gas supply pipe, and the third end of the three-way valve 37 is installed with one end of the gas outlet pipe 36, and the other end of the gas outlet pipe 36 extends to the outside of the box body 1 through the third through hole 16; the filter 32, condenser 31, air pump 39, first electronic flow meter 34, second electronic flow meter 38, etc. mentioned above are all fixedly installed on the box body 1, and a power module 3 and a controller are also installed on the box body 1. The power module 3 is electrically connected to the condenser 31, the air pump 39, the first electronic flow meter 34, the second electronic flow meter 38, and the controller and supplies power to them, and the controller is electrically connected to the condenser 31, the air pump 39, the first electronic flow meter 34, and the second electronic flow meter 38.
[0026] As a further illustration of this example, a square groove is provided on the box door 12, and a display screen 11 is installed in the square groove. The display screen 11 is electrically connected to the power module 3 and the controller. The display screen 11 can control the opening of the first electronic flow meter 34, the second electronic flow meter 38, the air pump 39, and the condenser 31 through the controller. The display screen 11 can also adjust the gas flow rate passing through the first electronic flow meter 34 and the second electronic flow meter 38, so that the mixed gas reaches the required standard gas specifications.
[0027] As a further illustration of this example, a buffer mechanism 2 is cooperatively installed on the box door 12 and the box body 1, and the buffer mechanism 2 can prevent the display screen 11 or other electronic components from being damaged due to excessive vibration when the box door 12 is closed, thereby increasing the service life of the device; specifically, the buffer mechanism 2 includes a second mounting seat 23, one end of the second mounting seat 23 is hinged to one end of a guide cylinder 27, the other end of the second mounting seat 23 is fixedly installed with a fixed shaft 29, the other end of the guide cylinder 27 is slidably installed with a guide column 28, one end of the guide column 28 is located in the guide cylinder 27, and the other end of the guide column 28 is hinged to the middle part of a "V"-shaped mounting arm 25, one end of the mounting arm 25 is rotatably installed on the fixed shaft 29, and the other end of the mounting arm 25 is rotatably installed with a roller 24; a first mounting seat 22 is fixedly installed on the box body 1, and a buffer guide rail 21 is installed on the first mounting seat 22, and the buffer guide rail 21 consists of an inclined end, a vertical end and an arc end, and its shape is as follows Figure 4 As shown, one end of the torsion spring 26 is fixedly mounted on the fixed shaft 29, and the other end of the torsion spring 26 is fixedly mounted on the mounting arm 25. When the box door 12 is opened, under the action of the torsion spring 26, the portion of the mounting arm 25 to the roller 24 is horizontally directed toward the box body 1, and at this time, the guide column 28 is also in a stretched state. When the box door 12 is closed, the roller 24 will first contact the bottom of the buffer guide rail 21, and then slide upward under the action of the buffer guide rail 21, so as to buffer the vibration caused by closing the box door 12, and at this time, the guide column 28 will also slide toward the inside of the guide cylinder 27.
[0028] When low-concentration standard gas is needed, high-concentration standard gas is used, and the mixing ratio is calculated according to the gas content. Then, the first electronic flow meter 34 and the second electronic flow meter 38 are set through the display screen 11, and then the high-concentration standard gas is introduced. When the control air pump 39 is turned on, the first electronic flow meter 34, the second electronic flow meter 38, and the condenser 31 are also turned on at the same time, so that the high-concentration standard gas and air are mixed in the outlet pipe 36 to form the required standard gas concentration specification, so as to use it.
[0029] In summary, the utility model is a gas distributor for standard gases with different concentration gradients. It uses only one high-standard standard gas, mixes it through the air inlet pipe 33 and the standard gas inlet pipe 35, and controls the amount of air entering through the first electronic flow meter 34 and the second electronic flow meter 38, so as to dilute the high-concentration standard gas to the required concentration for use; by using only one specification of standard gas, the number of standard gas cylinders is reduced, thereby reducing the cost generated by multiple standard gas cylinders, which is more economical; a buffer mechanism 2 is used to buffer the closing of the box door 12, so as to prevent the display screen 11 and the internal electronic components from being damaged due to excessive vibration when the box door 12 is closed; the buffer mechanism 2 can further increase the service life of the device.
[0030] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may still make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. A gas distribution instrument with different concentration gradients of standard gas, characterized in that: The invention comprises a box body (1), wherein an air pump (39) is fixedly installed in the box body (1), one end of the air pump (39) is connected to one end of an air inlet pipe (33), the other end of the air inlet pipe (33) extends to the outside of the box body (1), the other end of the air pump (39) is connected to one end of a first electronic flow meter (34) via an air supply pipe, the other end of the first electronic flow meter (34) is connected to a first section of a three-way valve (37) via the air supply pipe, the second end of the three-way valve (37) is connected to one end of a second electronic flow meter (38) via the air supply pipe, and the second end of the three-way valve (37) is connected to one end of a second electronic flow meter (38) via the air supply pipe. The other end of the electronic flow meter (38) is connected to one end of a standard gas inlet pipe (35), the other end of the standard gas inlet pipe (35) passes through the box (1) and extends to the outside of the box (1); the third end of the three-way valve (37) is connected to one end of an outlet pipe (36), the other end of the outlet pipe (36) passes through the box (1) and extends to the outside of the box (1); a power module (3) is also installed in the box (1), and the power module (3) is electrically connected to the first electronic flow meter (34), the second electronic flow meter (38), and the air pump (39).
2. The standard gas different concentration gradient gas distribution instrument according to claim 1, characterized in that: One side of the box body (1) is also hingedly connected to one side of a box door (12), and the other side of the box body (1) cooperates with the other side of the box door (12) via a switch (15).
3. The standard gas different concentration gradient gas distribution instrument according to claim 2, characterized in that: A display screen (11) is also fixedly mounted on the box door (12), and the display screen (11) is electrically connected to the power module (3); a controller is also fixedly mounted on the box body (1), and the controller is electrically connected to the power module (3), the first electronic flow meter (34), the second electronic flow meter (38), the air pump (39), and the display screen (11).
4. The standard gas different concentration gradient gas distribution instrument according to claim 2, characterized in that: A buffer mechanism (2) is also installed on the box door (12).
5. The standard gas different concentration gradient gas distribution instrument according to claim 4, characterized in that: The buffer mechanism (2) comprises a second mounting seat (23), one end of the second mounting seat (23) is hingedly connected to one end of a guide cylinder (27), the other end of the second mounting seat (23) is fixedly mounted with a fixed shaft (29), the other end of the guide cylinder (27) is slidably mounted with a guide column (28), one end of the guide column (28) away from the guide cylinder (27) is hingedly connected to the middle part of a mounting arm (25), one end of the mounting arm (25) is rotatably connected to the fixed shaft (29), and the other end of the mounting arm (25) is rotatably mounted with a roller (24); a first mounting seat (22) is fixedly mounted on the box body (1), a buffer guide rail (21) matching the roller (24) is mounted on the first mounting seat (22), one end of a torsion spring (26) is fixedly mounted on the fixed shaft (29), and the other end of the torsion spring (26) is fixedly connected to the mounting arm (25).
6. The standard gas different concentration gradient gas distribution instrument according to claim 5, characterized in that: The mounting arm (25) is in a "V" shape.
7. The standard gas different concentration gradient gas distribution instrument according to claim 1, characterized in that: A filter (32) is also installed between the air inlet pipe (33) and the air pump (39), and the filter (32) and the air pump (39) are connected via an air delivery pipe.
8. The standard gas distribution instrument with different concentration gradients according to claim 7, characterized in that: A condenser (31) is also installed between the filter (32) and the air pump (39); the filter (32) and the condenser (31), and the condenser (31) and the air pump (39) are connected via an air pipe; the condenser (31) is electrically connected to the power module (3) and the controller.