Ammonia gas filter

Abstract

The invention discloses an ammonia gas filter, belongs to the technical field of filters, and solves the technical problem that ammonia gas is in contact with water generated after filtration during filtration. The filter comprises a connecting base, a filter shell is arranged at the bottom of the connecting base, a filter element device is arranged in the filter shell, an input connector and an output connector are arranged on the two sides of the upper end of the connecting base respectively, a gas conveying channel communicated with a center hole of the filter element device is arranged in the connecting base, and the input connector is communicated with the gas conveying channel. The output connector is communicated with an inner cavity of the filter shell, a water-permeable gas-blocking film is arranged at the bottom of the filter element device and divides the inner cavity of the filter shell into an upper part and a lower part, the upper part is a gas outlet cavity, the lower part is a water storage cavity, the gas outlet cavity is provided with a heating module, and the water storage cavity is provided with a liquid level meter and a drain valve; ammonia gas in the gas outlet cavity can be heated to a set temperature through the heating module; the liquid level in the water storage cavity can be detected through the liquid level meter, and when the liquid level reaches the alarm line, water can be drained through the drainage valve.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and more particularly to an ammonia filter. Background Art

[0002] Engine fuel media can be roughly divided into traditional fuel oil, gas and new alternative energy ammonia, etc. Therefore, according to the different fuel media, filters can be divided into fuel filters, gas filters, ammonia filters, etc. At present, the technology of fuel filters and gas filters is relatively mature.

[0003] At present, the common filters used cannot effectively remove impurities in ammonia, and cannot effectively solve the problem of ammonia liquefaction at low temperature and easy solubility in water. When ammonia is filtered using common filters, the water produced after filtration will directly contact with ammonia again, affecting the working stability and durability of ammonia engines. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. The purpose of the present invention is to provide an ammonia filter that can prevent the moisture generated after filtration from directly contacting the ammonia again.

[0005] The technical solution of the present invention is: an ammonia filter, comprising a connecting seat, a filter housing is provided at the bottom of the connecting seat, a filter element device is provided in the filter housing, an input connector and an output connector are provided at both sides of the upper end of the connecting seat, an air transmission channel connected to the central hole of the filter element device is provided in the connecting seat, the input connector is connected to the air transmission channel, the output connector is connected to the inner cavity of the filter housing, a water-permeable gas-blocking membrane is provided at the bottom of the filter element device, the water-permeable gas-blocking membrane divides the inner cavity of the filter housing into an upper and lower part, the upper part is an air outlet cavity, and the lower part is a water storage cavity, the air outlet cavity is provided with a heating module, and the water storage cavity is provided with a liquid level gauge and a drain valve;

[0006] The ammonia gas in the gas outlet cavity can be heated to a set temperature by the heating module;

[0007] The liquid level in the water storage chamber can be detected by the liquid level meter, and when the liquid level reaches the alarm line, the water can be drained through the drain valve.

[0008] As a further improvement, the heating module includes a temperature sensor and a heating wire, the heating wire is spirally arranged on the inner wall of the air outlet cavity, and the temperature sensor is close to the output connector.

[0009] Furthermore, the water-permeable and gas-blocking membrane is made of a hydrophilic membrane or an ultrafiltration membrane material.

[0010] Furthermore, the aperture of the gas transmission channel gradually increases from the input end to the output end, and the inner wall of the gas transmission channel has a smooth transition.

[0011] Furthermore, a bell-mouth structure is provided at the connection point between the inner cavity of the filter housing and the output connector.

[0012] Furthermore, it also includes a single chip microcomputer, which is integrated on the top of the connecting seat, the drain valve is a solenoid valve, and the single chip microcomputer is electrically connected to the temperature sensor, the heating wire, the liquid level meter, and the drain valve;

[0013] The single chip microcomputer controls the heating wire to heat the ammonia gas in the gas outlet cavity to a set temperature according to the detection data of the temperature sensor;

[0014] When the liquid level meter detects that the liquid level in the water storage chamber reaches the alarm line, the single chip microcomputer controls the drain valve to open for drainage. After drainage, the single chip microcomputer controls the drain valve to close.

[0015] Furthermore, the single chip microcomputer controls the operation of the heating module through a PID control method.

[0016] Furthermore, a mounting plate is provided on the back of the connecting seat, and the mounting plate is provided with a mounting waist hole.

[0017] Furthermore, the connection seat is connected to the input connector and the output connector via threads, and the connection seat is connected to the filter housing via threads.

[0018] Furthermore, a threaded base is provided at the bottom of the filter housing, and the liquid level meter and the drain valve are integrated on the base.

[0019] Beneficial Effects

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The present invention divides the interior of the filter housing into two layers, upper and lower, through a water-permeable gas barrier membrane. The upper layer passes filtered ammonia, and the lower layer collects the water generated by filtration. Under the action of the water-permeable gas barrier membrane, the water generated after filtration can be prevented from directly contacting the ammonia again. The clean ammonia fuel enters the engine from the upper space of the water-permeable gas barrier membrane and is fully burned, and the engine power, economy and reliability are optimized.

[0022] 2. At the same time, since ammonia is easily liquefied at low temperatures, the present invention can heat the ammonia in the gas outlet cavity to a set temperature through a heating module, thereby reducing the risk of ammonia liquefaction at low temperatures.

[0023] 3. The present invention can detect the liquid level in the water storage chamber through a liquid level meter. When the liquid level reaches the alarm line, the water can be drained through a drain valve to achieve an automatic sewage discharge function. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of the present invention;

[0025] Figure 2 It is a left view of the present invention.

[0026] Among them: 1-connecting seat, 2-filter housing, 3-filter element device, 4-input connector, 5-output connector, 6-gas transmission channel, 7-water-permeable gas blocking membrane, 8-air outlet cavity, 9-water storage cavity, 10-liquid level meter, 11-drain valve, 12-temperature sensor, 13-heating wire, 14-bell mouth structure, 15-single chip microcomputer, 16-mounting plate, 17-mounting waist hole, 18-base, 19-sealing ring. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0028] See also Figure 1-2 , an ammonia filter, comprising a connection seat 1, a filter housing 2 is provided at the bottom of the connection seat 1. A filter element device 3 is provided in the filter housing 2. In this embodiment, the filter element device 3 adopts an ammonia filter element of the prior art. An input connector 4 and an output connector 5 are provided on both sides of the upper end of the connection seat 1, respectively. A gas transmission channel 6 connected to the central hole of the filter element device 3 is provided in the connection seat 1. The input connector 4 is connected to the gas transmission channel 6, and the output connector 5 is connected to the inner cavity of the filter housing 2. Ammonia is input from the input connector 4, filtered by the filter element device 3, and then output from the output connector 5 to the engine cylinder. A water-permeable gas-blocking membrane 7 is provided at the bottom of the filter element device 3. The water-permeable gas-blocking membrane 7 divides the inner cavity of the filter housing 2 into two parts, the upper part is the air outlet cavity 8, and the lower part is the water storage cavity 9. The water generated by the filtration passes through the water-permeable gas-blocking membrane 7 and is temporarily stored in the water storage cavity 9, while the ammonia is not easy to pass through the water-permeable gas-blocking membrane 7, thereby preventing the water generated after the filtration from directly contacting the ammonia again. The clean ammonia fuel enters the engine from the upper space of the water-permeable gas-blocking membrane and is fully burned, and the engine power, economy and reliability are optimized. The air outlet cavity 8 is provided with a heating module, and the water storage cavity 9 is provided with a liquid level meter 10 and a drain valve 11.

[0029] In one embodiment, the heating module and the liquid level meter 10 can be connected to the on-board computer, and the ammonia in the air outlet cavity 8 can be heated to a set temperature by the heating module; the liquid level in the water storage cavity 9 can be detected by the liquid level meter 10, and when the liquid level reaches the alarm line, a filtered water level alarm can be issued to promptly notify the user to drain water, and the water can be drained through the drain valve 11. When the drain valve 11 is a manual valve, the user manually operates the drain valve 11 to drain water. When the drain valve 11 is an electronically controlled valve, the user controls the drain valve 11 to drain water through the on-board computer, and of course, the on-board computer can also automatically control the drain valve 11 to drain water.

[0030] Specifically, the heating module includes a temperature sensor 12 and a heating wire 13. The heating wire 13 is spirally arranged on the inner wall of the gas outlet cavity 8, which can increase the heating contact area and improve the heating effect. The temperature sensor 12 is close to the output connector 5. The output temperature of the ammonia is monitored by the temperature sensor 12, which can better ensure that the ammonia in the gas outlet cavity 8 is heated to the set temperature.

[0031] The water-permeable and gas-blocking membrane 7 is made of a hydrophilic membrane or an ultrafiltration membrane material, so that the water generated by filtration can easily pass through the water-permeable and gas-blocking membrane 7 , while ammonia cannot easily pass through the water-permeable and gas-blocking membrane 7 .

[0032] The aperture of the gas delivery channel 6 gradually increases from the input end to the output end, and the inner wall of the gas delivery channel 6 is a smooth transition. After ammonia gas of a certain pressure enters the gas delivery channel 6 through the input connector 4, the volume increases and the flow rate decreases, which is conducive to filtration. The smooth transition inner wall can help reduce the airflow resistance.

[0033] Correspondingly, a bell-mouth structure 14 is provided at the connection point between the inner cavity of the filter housing 2 and the output connector 5, which is also helpful in reducing the airflow resistance.

[0034] In one embodiment, the present invention further includes a single chip microcomputer 15 , which is integrated on the top of the connection socket 1 , the drain valve 11 is a solenoid valve, and the single chip microcomputer 15 is electrically connected to the temperature sensor 12 , the heating wire 13 , the liquid level meter 10 , and the drain valve 11 .

[0035] The single chip microcomputer 15 controls the heating wire 13 to heat the ammonia gas in the gas outlet cavity 8 to a set temperature according to the detection data of the temperature sensor 12 .

[0036] When the liquid level meter 10 detects that the liquid level in the water storage chamber 9 reaches the alarm line, the single chip microcomputer 15 controls the drain valve 11 to open for drainage. After drainage, the single chip microcomputer 15 controls the drain valve 11 to close.

[0037] Preferably, the single chip microcomputer 15 controls the operation of the heating module by means of PID control, that is, the single chip microcomputer 15 controls the heating power of the heating wire 13 according to the detection data fed back by the temperature sensor 12 .

[0038] A mounting plate 16 is provided on the back of the connecting seat 1, and a mounting waist hole 17 is provided on the mounting plate 16. Through the mounting waist hole 17, the filter can be conveniently mounted on a vehicle body or an engine.

[0039] The connection base 1 is connected to the input connector 4 and the output connector 5 by threads, and a sealing ring 19 is provided between the connection base 1 and the input connector 4 and the output connector 5, or sealing glue is provided between the threads to achieve sealing. The connection base 1 is connected to the filter housing 2 by threads, and a sealing ring 19 is provided between the connection base 1 and the filter housing 2, or sealing glue is provided between the threads to achieve sealing.

[0040] A threaded base 18 is provided at the bottom of the filter housing 2, and a sealing ring 19 is provided between the filter housing 2 and the base 18, or sealing glue is provided between the threads to achieve sealing. The liquid level meter 10 and the drain valve 11 are integrated on the base 18, which can be easily installed. Of course, the liquid level meter 10, the drain valve 11 and the base 18 are sealed.

[0041] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An ammonia filter, characterized in that: The invention comprises a connection seat (1), a filter housing (2) is provided at the bottom of the connection seat (1), a filter element device (3) is provided in the filter housing (2), an input connector (4) and an output connector (5) are provided on both sides of the upper end of the connection seat (1), an air transmission channel (6) connected to the central hole of the filter element device (3) is provided in the connection seat (1), the input connector (4) is connected to the air transmission channel (6), the output connector (5) is connected to the inner cavity of the filter housing (2), a water-permeable gas-blocking membrane (7) is provided at the bottom of the filter element device (3), the water-permeable gas-blocking membrane (7) divides the inner cavity of the filter housing (2) into two parts, the upper part is an air outlet cavity (8), and the lower part is a water storage cavity (9), the air outlet cavity (8) is provided with a heating module, and the water storage cavity (9) is provided with a liquid level meter (10) and a drain valve (11); The ammonia gas in the gas outlet cavity (8) can be heated to a set temperature by the heating module; The liquid level in the water storage chamber (9) can be detected by the liquid level meter (10), and when the liquid level reaches the alarm line, the water can be drained through the drain valve (11).

2. The ammonia filter according to claim 1, characterized in that: The heating module comprises a temperature sensor (12) and a heating wire (13), wherein the heating wire (13) is spirally arranged on the inner wall of the air outlet cavity (8), and the temperature sensor (12) is close to the output connector (5).

3. The ammonia filter according to claim 1, characterized in that: The water-permeable and gas-blocking membrane (7) is made of a hydrophilic membrane or an ultrafiltration membrane material.

4. The ammonia filter according to claim 1, characterized in that: The aperture of the gas delivery channel (6) gradually increases from the input end to the output end, and the inner wall of the gas delivery channel (6) has a smooth transition.

5. The ammonia filter according to claim 1, characterized in that: A bell-mouth structure (14) is provided at the connection point between the inner cavity of the filter housing (2) and the output connector (5).

6. The ammonia filter according to claim 2, characterized in that: It also includes a single chip microcomputer (15), the single chip microcomputer (15) is integrated on the top of the connection seat (1), the drain valve (11) is a solenoid valve, and the single chip microcomputer (15) is electrically connected to the temperature sensor (12), the heating wire (13), the liquid level meter (10), and the drain valve (11); The single chip computer (15) controls the heating wire (13) to heat the ammonia gas in the gas outlet cavity (8) to a set temperature according to the detection data of the temperature sensor (12); When the liquid level meter (10) detects that the liquid level in the water storage chamber (9) reaches the alarm line, the single chip computer (15) controls the drain valve (11) to open for draining, and after draining, the single chip computer (15) controls the drain valve (11) to close.

7. An ammonia filter according to claim 6, characterized in that: The single chip computer (15) controls the operation of the heating module through a PID control method.

8. The ammonia filter according to claim 1, characterized in that: The back of the connecting seat (1) is provided with a mounting plate (16), and the mounting plate (16) is provided with a mounting waist hole (17).

9. The ammonia filter according to claim 1, characterized in that: The connection seat (1) is connected to the input connector (4) and the output connector (5) via threads, and the connection seat (1) is connected to the filter housing (2) via threads.

10. The ammonia filter according to claim 1, characterized in that: A threaded base (18) is provided at the bottom of the filter housing (2), and the liquid level meter (10) and the drain valve (11) are integrated on the base (18).

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