CN216692196U - Novel combined type discharge valve - Google Patents
Novel combined type discharge valve Download PDFInfo
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- CN216692196U CN216692196U CN202123170150.1U CN202123170150U CN216692196U CN 216692196 U CN216692196 U CN 216692196U CN 202123170150 U CN202123170150 U CN 202123170150U CN 216692196 U CN216692196 U CN 216692196U
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Abstract
The utility model provides a novel combined exhaust valve, and belongs to the field of air valves. The novel combined exhaust valve comprises a main valve, a micro exhaust valve and an air supply channel, wherein a first floating piece is arranged inside the main valve so as to close the exhaust channel of the main valve when the liquid level exceeds a liquid level line of the first main valve; the micro exhaust valve is connected with the main valve, and meanwhile, a second floating piece is arranged inside the micro exhaust valve so as to close an exhaust channel of the micro exhaust valve when the liquid level exceeds the liquid level line of the micro exhaust valve; one end of the air supply channel is connected with the main valve, and the other end of the air supply channel is connected with the micro exhaust valve, so that the pressure balance in the novel combined exhaust valve is maintained. The utility model adds a gas feeding channel between the main valve and the micro exhaust valve to feed gas into the micro exhaust valve through the gas feeding channel when the main valve is closed, so as to maintain pressure balance and gas circulation in the valve, realize continuous exhaust under a pressurized state and effectively solve the problem of difficult exhaust of the micro exhaust valve.
Description
Technical Field
The utility model belongs to the field of air valves, and particularly relates to a novel combined exhaust valve.
Background
The air valve has been widely used as a functional valve of a water supply line, and is responsible for key tasks such as protecting water supply safety and improving water supply efficiency. The functionality and stability of the composite air valve has been of great concern as the most widely used air valve.
The micro-exhaust valve acts as a heart of the compound exhaust valve, which must be kept continuously exhausted under pressure. Because the interface of the micro exhaust valve is generally smaller, the gas-liquid exchange in the valve is subjected to bottleneck and can not be normally carried out, so that the micro exhaust valve can not normally exhaust.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a novel composite exhaust valve, and aims to solve the problem that the micro exhaust valve in the conventional composite exhaust valve cannot normally exhaust due to the bottleneck of gas-liquid exchange.
In order to achieve the above object, the present invention provides a novel composite exhaust valve, which includes a main valve, a micro exhaust valve and a gas supply channel, wherein a first float is disposed inside the main valve to close the exhaust channel of the main valve when a liquid level exceeds a liquid level line of the first main valve, and a second liquid level line of the main valve is disposed inside the main valve, and when the liquid level is lower than the liquid level line of the second main valve, gas enters the micro exhaust valve from the main valve through the gas supply channel; the micro exhaust valve is connected with the main valve and used for exhausting residual gas after the exhaust channel of the main valve is closed, and meanwhile, a second floating piece is arranged in the micro exhaust valve so as to close the exhaust channel of the micro exhaust valve when the liquid level exceeds the liquid level line of the micro exhaust valve; one end of the air supply channel is connected with the main valve, the connecting position of the air supply channel is located between the first main valve liquid level line and the second main valve liquid level line, the other end of the air supply channel is connected with the micro exhaust valve, and the connecting position of the air supply channel is located above the micro exhaust valve liquid level line and used for maintaining pressure balance in the novel combined exhaust valve.
Preferably, the main valve comprises a first valve body, a first valve cover and an exhaust hood which are sequentially connected from bottom to top, wherein the first floating piece is arranged inside the first valve body, the lower end of the first valve body is used for being connected with a device to be exhausted, and an exhaust passage is formed in the exhaust hood so as to exhaust gas in the device to be exhausted through the exhaust passage; and when the liquid level of the first valve body exceeds a first main valve liquid level line, the first floating piece rises to be in contact with the sealing assembly to realize sealing, so that the exhaust channel is closed.
Preferably, the main valve further comprises a bracket disposed below the first float for supporting the first float.
Preferably, the main valve further includes a guide sleeve connected to a lower portion of the bracket, and a guide rod connected to a lower portion of the first floating member and disposed inside the guide sleeve.
Preferably, the bottom of the guide sleeve is provided with a liquid inlet for ensuring the consistency of the internal pressure and the external pressure of the guide sleeve.
Preferably, the micro exhaust valve comprises a second valve body and a second valve cover, wherein the lower part of the second valve body is connected with the main valve through a liquid feeding channel, the second valve cover is connected with the upper end of the second valve body, and an exhaust assembly is arranged to realize an exhaust function; the second floating piece is arranged in the second valve body, and the upper end of the second floating piece is connected with the exhaust assembly so as to control the opening and closing of the exhaust assembly.
Preferably, the liquid feeding channel is provided with a ball valve for checking whether the micro exhaust valve works normally.
Preferably, the liquid feeding channel is provided with a filter for preventing the micro exhaust valve from being blocked.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
1. in the utility model, a small amount of gas is mixed or separated out from liquid when a device to be exhausted normally runs, and the gas is required to be exhausted through the micro exhaust valve, but the micro exhaust valve has the problem of difficult gas-liquid exchange, and further, a gas feeding channel is added between the main valve and the micro exhaust valve so as to feed the gas into the micro exhaust valve through the gas feeding channel when the main valve is closed, so that the pressure balance and the gas circulation in the valve are maintained, the continuous exhaust under the pressure state is realized, and the problem of difficult exhaust of the micro exhaust valve is effectively solved;
2. the utility model also improves the internal structure of the main valve, and the bracket is arranged to support the first floating piece, so that the problem that the novel combined exhaust valve fails because the first floating piece is impacted by airflow and moves upwards quickly when the device to be exhausted is subjected to initial liquid passing, and an exhaust channel of the main valve is closed can be avoided; meanwhile, the guide sleeve and the guide rod are arranged, so that the first floating piece can be ensured to move up and down along the vertical direction, and the problems of reduced sealing performance of the main valve and the like caused by dislocation of the first floating piece are avoided;
3. in addition, the liquid feeding channel is also provided with a ball valve and a filter, so that the trace exhaust valve can be overhauled, the trace exhaust valve can be prevented from being blocked, and the safety and the stability of the novel composite exhaust valve can be effectively improved.
Drawings
Fig. 1 is a schematic structural view of a novel composite exhaust valve provided in an embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1-first valve body, 2-first valve cover, 3-exhaust hood, 4-first floating piece, 5-bracket, 6-guide sleeve, 7-guide rod, 8-first main valve liquid level line, 8' -second main valve liquid level line, 9-second valve body, 10-second valve cover, 11-second floating piece, 12-micro exhaust valve liquid level line, 13-liquid feeding channel, 14-filter, 15-ball valve and 16-gas feeding channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As shown in fig. 1, the present invention provides a novel composite exhaust valve, which comprises a main valve, a micro exhaust valve and a gas supply channel 16, wherein the main valve is connected to a device to be exhausted through a maintenance valve to exhaust gas from the device to be exhausted, so that maintenance of the novel composite exhaust valve can be realized without affecting the normal operation of the device to be exhausted; the inside of the main valve is provided with a first floating part 4, so that the exhaust channel of the main valve is closed when the liquid level exceeds a first main valve liquid level line 8, when a device to be exhausted is communicated with the liquid for the first time, the novel combined exhaust valve exhausts a large amount of gas through the exhaust channel of the main valve, the liquid level in the main valve rises gradually until the liquid level reaches the first main valve liquid level line 8, and the first floating part 4 rises and closes the exhaust channel of the main valve; in the operation process, gas mixed or separated in a device to be exhausted enters the main valve to reduce the liquid level of the device, the position of the first floating piece 4 is kept unchanged to ensure that an exhaust passage of the main valve is kept in a closed state, and when the liquid level is reduced to a liquid level line 8' of the second main valve, the gas enters the micro exhaust valve through the liquid feeding passage 13;
the micro exhaust valve is connected with the main valve and used for exhausting residual gas after the exhaust channel of the main valve is closed, and meanwhile, a second floating piece 11 is arranged inside the micro exhaust valve and used for closing the exhaust channel of the micro exhaust valve when the liquid level exceeds the liquid level line 12 of the micro exhaust valve;
the gas channel 16 is connected to the main valve at one end and is located between the first main valve level line 8 and the second main valve level line 8 ', and is connected to the micro-exhaust valve at the other end and is located above the micro-exhaust valve level line 12, when the exhaust device is operating normally, a small amount of gas will be mixed or precipitated in the liquid, when the main valve is closed, the gas will be exhausted through the micro-exhaust valve, the gas channel 16 can solve the gas-liquid exchange problem, and before the liquid level drops to the second main valve level line 8', the gas is sent from the main valve to the micro-exhaust valve to maintain the pressure balance and gas circulation in the novel composite exhaust valve, and realize continuous exhaust under pressure.
In the preferred embodiment of the present invention, the device to be exhausted is preferably a liquid conveying pipeline, the first floating member 4 and the second floating member 11 are preferably floating balls or floating pontoons, and the two ends of each floating pontoon are arc-shaped structures, and the arc-shaped surfaces of the floating balls or floating pontoons are matched with the arc-shaped surfaces or wedge-shaped contact pieces of the exhaust passage of the main valve to form a seal during operation, so as to close the exhaust passage. Meanwhile, the first floating part 4 and the second floating part 11 are preferably made of cast iron, nodular cast iron, cast steel, stainless steel, brass, bronze, alloy steel, duplex stainless steel or engineering plastics and the like, and can be applied to pipeline systems of clean water, waste water, hot water, seawater or chemical solvents and the like.
Further, the main valve comprises a first valve body 1, a first valve cover 2 and an exhaust hood 3 which are sequentially connected from bottom to top, and also comprises a first floating piece 4, a bracket 5, a guide sleeve 6 and a guide rod 7 which are arranged inside the first valve body 1, wherein the lower end of the first valve body 1 is used for being connected with a device to be exhausted through a maintenance valve, and the exhaust hood 3 is provided with an exhaust passage so as to discharge gas in the device to be exhausted through the exhaust passage; the top of the first valve cover 2 is provided with a sealing assembly, and when the liquid level of the first valve body 1 exceeds the liquid level line 8 of the first main valve, the first floating piece 4 rises to contact with the sealing assembly to realize sealing, so that the exhaust channel is closed; the sealing component preferably adopts a contact element or a circular arc structure with a wedge-shaped structure, and forms a seal by matching with the cambered surface of the first floating element 4;
the bracket 5 is arranged below the first floating piece 4, is fixed in the main valve and is used for supporting the first floating piece 4 and preventing the first floating piece 4 from being impacted by strong airflow and moving upwards quickly when a device to be exhausted is subjected to initial liquid flowing so as to close an exhaust channel of the main valve and further cause the failure of the novel combined exhaust valve;
the guide sleeve 6 is connected with the lower part of the bracket 5, the guide rod 7 is connected with the lower part of the first floating piece 4 and is arranged in the guide sleeve 6, so that the guide sleeve 6 is used for limiting the movement of the guide rod 7, the first floating piece 4 is ensured to move up and down along the vertical direction, and the reduction of the sealing performance of the main valve caused by the dislocation of the first floating piece 4 is avoided; and the bottom of the guide sleeve 6 is provided with a liquid inlet for ensuring the consistency of the internal pressure and the external pressure of the guide sleeve 6, so that the first floating piece 4 can move downwards when the liquid level of the main valve descends, an exhaust channel on the exhaust hood 3 is opened, gas is supplemented to eliminate negative pressure, and the safety of a device to be exhausted is maintained.
Further, the micro exhaust valve comprises a second valve body 9, a second valve cover 10 and a second floating piece 11, the lower part of the second valve body 9 is connected with the first valve body 1 through a liquid feeding channel 13, the second valve cover 10 is connected with the upper end of the second valve body 9, and an exhaust assembly is arranged to realize an exhaust function; the second floating member 11 is disposed inside the second valve body 9, and its upper end is connected to the exhaust assembly to control the opening and closing of the exhaust assembly.
Further, a ball valve 15 is arranged on the liquid feeding channel 13 and used for checking whether the micro exhaust valve works normally or not. During detection, if the ball valve 15 is opened and liquid flows out, the micro exhaust valve works normally, if the ball valve 15 is opened and gas flows out, the micro exhaust valve does not work normally, and a large amount of gas is not exhausted through the novel composite exhaust valve. Meanwhile, the liquid conveying channel 13 is also provided with the filter 14, as the liquid in the device to be exhausted may contain more impurities, and the exhaust channel of the micro exhaust valve is relatively narrow, in order to avoid the blockage of the micro exhaust valve, the liquid conveying channel 13 is connected with the filter 14, so that the impurities in the liquid can be effectively filtered.
The working process of the novel composite exhaust valve provided by the utility model is further described in detail according to the specific embodiment. The novel composite exhaust valve is arranged on the pipeline, and when the pipeline is filled with water for the first time, a large amount of gas is exhausted through the exhaust channel on the exhaust hood 3; when the liquid level rises to the liquid level line 8' of the second main valve, water enters the micro exhaust valve through the liquid sending channel 13, and when the liquid level continues to rise to the liquid level line 8 of the first main valve, the first floating piece 4 rises to contact with the sealing component on the first valve cover 2, so that the exhaust channel on the exhaust hood 3 is closed; water continues to enter the micro exhaust valve through the liquid feeding channel 13, meanwhile, gas enters the micro exhaust valve through the gas feeding channel 16 to continue exhausting until air in the pipeline is exhausted, and when the liquid level in the micro exhaust valve rises to the liquid level line 12 of the micro exhaust valve, the second floating piece 11 rises to close the exhaust assembly on the second valve cover 10. When the pipeline normally runs, a small amount of air is entrained or separated out in the water, and the air enters the micro exhaust valve through the air feeding channel 16, so that the liquid level in the micro exhaust valve is lowered, and the exhaust channel is opened for exhausting. When negative pressure occurs in the pipeline, the first floating piece 4 rapidly falls, the exhaust passage on the exhaust hood 3 is opened, a large amount of gas is supplemented in time to eliminate the negative pressure, and the safety of the pipeline is maintained.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A novel combined exhaust valve is characterized by comprising a main valve, a micro exhaust valve and a gas supply channel (16), wherein a first floating piece (4) is arranged inside the main valve to close the exhaust channel of the main valve when the liquid level exceeds a first main valve liquid level line (8), and a second main valve liquid level line (8 ') is also arranged inside the main valve, and when the liquid level is lower than the second main valve liquid level line (8'), gas enters the micro exhaust valve from the main valve through the liquid supply channel (13); the micro exhaust valve is connected with the main valve and used for exhausting residual gas after the exhaust channel of the main valve is closed, and meanwhile, a second floating piece (11) is arranged inside the micro exhaust valve and used for closing the exhaust channel of the micro exhaust valve when the liquid level exceeds the liquid level line (12) of the micro exhaust valve; one end of the air supply channel (16) is connected with a main valve, the connecting position is positioned between the first main valve liquid level line (8) and the second main valve liquid level line (8'), the other end of the air supply channel is connected with a micro exhaust valve, and the connecting position is positioned above the micro exhaust valve liquid level line (12) and is used for maintaining the pressure balance in the novel composite exhaust valve.
2. The novel composite exhaust valve according to claim 1, wherein the main valve comprises a first valve body (1), a first valve cover (2) and an exhaust hood (3) which are sequentially connected from bottom to top, wherein the first floating member (4) is arranged inside the first valve body (1), the lower end of the first valve body (1) is used for being connected with a device to be exhausted, and an exhaust passage is formed in the exhaust hood (3) so as to exhaust gas in the device to be exhausted through the exhaust passage; the top of the first valve cover (2) is provided with a sealing assembly, and when the liquid level of the first valve body (1) exceeds a first main valve liquid level line (8), the first floating piece (4) rises to be in contact with the sealing assembly to realize sealing, so that the exhaust channel is closed.
3. A new composite exhaust valve according to claim 2, characterized in that said main valve further comprises a bracket (5), said bracket (5) being arranged below said first float (4) for supporting said first float (4).
4. A new composite exhaust valve according to claim 3, characterised in that said main valve further comprises a guide sleeve (6) and a guide rod (7), said guide sleeve (6) being connected to the underside of the bracket (5), said guide rod (7) being connected to the underside of the first float (4) and being arranged inside said guide sleeve (6).
5. A novel combined type exhaust valve as claimed in claim 4, characterized in that a liquid inlet is provided at the bottom of the guide sleeve (6) for ensuring the consistency of the internal and external pressures of the guide sleeve (6).
6. A novel combined type exhaust valve according to any one of claims 1 to 5, characterized in that the micro exhaust valve comprises a second valve body (9) and a second valve cover (10), wherein the lower part of the second valve body (9) is connected with a main valve through a liquid feeding channel (13), the second valve cover (10) is connected with the upper end of the second valve body (9) and is provided with an exhaust component to realize the exhaust function; the second floating piece (11) is arranged inside the second valve body (9), and the upper end of the second floating piece is connected with an exhaust assembly to control the opening and closing of the exhaust assembly.
7. A new composite exhaust valve according to claim 6, characterized in that said liquid feeding channel (13) is provided with a ball valve (15) for checking whether said micro exhaust valve is working properly.
8. A new composite exhaust valve according to claim 6, characterized in that said liquid feeding channel (13) is provided with a filter (14) for avoiding the clogging of said micro exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170150.1U CN216692196U (en) | 2021-12-15 | 2021-12-15 | Novel combined type discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170150.1U CN216692196U (en) | 2021-12-15 | 2021-12-15 | Novel combined type discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216692196U true CN216692196U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123170150.1U Active CN216692196U (en) | 2021-12-15 | 2021-12-15 | Novel combined type discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216692196U (en) |
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2021
- 2021-12-15 CN CN202123170150.1U patent/CN216692196U/en active Active
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