CN216045728U

CN216045728U - Gas sectional valve

Info

Publication number: CN216045728U
Application number: CN202122390763.XU
Authority: CN
Inventors: 卢宇凡; 邝文伟; 郭林林; 梁友新
Original assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Current assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-15
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to a fuel gas sectional valve which comprises a main valve body and a first auxiliary valve body which are communicated with each other, wherein the main valve body is provided with a fuel gas inlet and a first fuel gas outlet which are communicated with each other, the first auxiliary valve body is provided with a second fuel gas outlet and a first electromagnetic valve for controlling the on-off of the second fuel gas outlet, the first electromagnetic valve is a normally closed valve, one side of the main valve body, which is far away from the first auxiliary valve body, is communicated with a connecting port, and the connecting port is sealed by a sealing cover or is detachably connected and communicated with the second auxiliary valve body. The utility model can be a standard two-section valve, can also be assembled into a three-section valve in a modularized way, does not need to replace a new three-section valve, has low mold investment and high generalization degree, ensures that the minimum power of the wall-mounted furnace can not be changed when the switch valve is in fault, avoids the overheating phenomenon of bathroom hot water in summer, and improves the use comfort of users.

Description

Gas sectional valve

Technical Field

The utility model relates to the technical field of gas equipment, in particular to a gas sectional valve.

Background

The wall-mounted stove has two functions of heating and domestic hot water. In winter, the water temperature is lower, and the user's demand to the heating is very urgent, so just require the unit can heat system's circulating water rapidly to satisfy user's heating demand, this needs hanging stove itself rated power bigger. In summer, the water temperature is higher, the user's demand for life hot water is stronger, and if the unit minimum power is great, just very easily with life water boil to exceed the settlement temperature, lead to the unit to shut down, cause the phenomenon of suddenly cooling and suddenly heating. This requires the unit to operate smoothly at lower power to meet the user's comfort requirements for hot water life.

In order to allow a unit to simultaneously take account of a larger rated power and a smaller rated power, a common gas sectional valve is used for performing sectional control on the on-off of a gas pipeline at present, for example, chinese patents with publication numbers of CN210566421U and publication dates of 2020.5.19: a fuel gas sectional valve, a fuel gas control device and a fuel gas wall-hanging stove are disclosed in the patent, wherein a two-section valve is adopted, the fuel gas sectional valve is suitable for low-power products, but when the high-power wall-hanging stove products need to achieve very low bathroom power, three-section or even multi-section combustion can be controlled, but the fuel gas sectional valve directly replaces a set of three-section valve body structure, the development cost is high, and the universality degree is not high; and the adopted switch valve is a normally open valve, when the switch valve breaks down, the normal requirement of bathroom hot water in winter is not influenced, but the requirement of bathroom hot water in summer is influenced, when the switch valve breaks down and can not control the closing of a gas channel, and a full-row combustor burns, the minimum power of the full-row combustor is increased, the minimum temperature rise is also increased, the phenomenon of overheating of bathroom water in summer is caused, and the use comfort of a user is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fuel gas sectional valve which can be a standard two-section valve and can also be assembled into a three-section valve in a modularized mode, replacement and renewal are not needed, the investment of a die is low, the generalization degree is high, when a switch valve breaks down, the minimum power of a wall-mounted furnace is ensured not to change, the overheating phenomenon of bathroom hot water in summer is avoided, and the use comfort of a user is improved.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a gas sectional valve, including the main valve body and the first sub-valve body that communicate each other, the main valve body is equipped with the gas import and the first gas export of intercommunication each other, first sub-valve body is equipped with second gas export and is used for control the first solenoid valve of second gas export break-make, wherein, first solenoid valve is the normally closed valve, the main valve body is kept away from one side intercommunication of first sub-valve body has the connector, the connector is sealed with sealed lid, or the connector is used for can dismantling with the second sub-valve body and be connected and communicate with each other.

The sectional valve has a standardized and modular structure design, and when the sectional valve is a common standard two-sectional valve, a connecting port on one side of a main valve body is sealed by a sealing cover; when the sectional control is needed to be added, a second auxiliary valve body is added to a connecting port on one side of the main valve body, and the connecting port is detachably connected with the second auxiliary valve body to form a three-section valve, so that the modular assembly is realized, a new three-section valve does not need to be replaced, the investment is reduced, and the generalization degree is high. Meanwhile, the normally closed electromagnetic valve is adopted for controlling the on-off of the fuel gas outlet, so that the minimum power of the wall-mounted boiler cannot be changed and the minimum temperature rise cannot be changed when the electromagnetic valve fails to control the opening of the fuel gas channel, the overheating phenomenon of bathroom hot water in summer is avoided, and the use comfort of users is improved.

In one embodiment, the second sub-valve body is provided with a third gas outlet and a second electromagnetic valve for controlling the on-off of the third gas outlet, and the second electromagnetic valve is a normally-closed valve.

In one embodiment, screw holes are formed in two sides of the connecting port, and one side of the second sub-valve body is correspondingly connected with the screw holes in the two sides of the connecting port through screws, so that the connecting port is communicated with the second sub-valve body.

The screw connection through the screw realizes the modularization equipment, convenient and fast, and simple structure.

In one embodiment, a sealing ring is arranged at the joint of the second auxiliary valve body and the connecting port. The tightness of the connection is enhanced.

In one embodiment, the sealing cover is pressed at the connecting port by glue for sealing. When assembly is not required, the connection port is sealed and closed by a sealing cover, and the valve is a standardized two-stage valve.

In one embodiment, a connector is arranged on one side of the second auxiliary valve body, and the connector is inserted into the connector to be inserted and clamped.

The modular assembly is realized by adopting a plug-in mode, and the device is convenient and quick and has a simple structure.

In one embodiment, the connector is provided with a clamping groove, clamp spring via holes are formed in two sides of the connector, after the connector is inserted into the connector, a clamp spring penetrates through the connector from the clamp spring via holes in an inserting mode, and meanwhile two sides of the clamp spring are arranged in the clamping groove, so that the connector and the connector are clamped and fixed.

The connector is inserted and clamped in the connecting port by utilizing the matching of the clamp spring and the clamp spring via hole, so that the connection stability of the second auxiliary valve body and the main valve body is ensured.

In one embodiment, a sealing ring is arranged between the connecting head and the connecting port. The tightness of the connection is enhanced.

In one embodiment, a first mounting opening is formed in the bottom of the first sub-valve body, and the first electromagnetic valve is mounted in the first mounting opening through a screw.

In one embodiment, a second mounting opening is formed in the bottom of the second sub-valve body, and the second electromagnetic valve is mounted in the second mounting opening through screws.

In one embodiment, a connecting nut is fixedly connected to the gas inlet and is used for being in threaded connection with a gas pipeline.

The connecting nut is in threaded connection with an external gas pipeline, and the connecting nut is convenient to detach and connect.

Compared with the background technology, the connecting structure of the utility model has the following beneficial effects:

1. the sectional valve structure has both standardized and modular structure design, two commonly used sectional valves are used as standardized platforms, when sectional control needs to be added, the sectional valves are added on the two sectional valve structures and are assembled in a modular mode through connecting ports, and compared with the existing sectional valves which are not expanded by the standard platforms, the sectional valve structure is low in mold investment, high in universality and flexible in structural design.

2. The electromagnetic valve on the section valve is a normally closed valve, under normal conditions, the electromagnetic valve is in a closed state for the controlled gas channel, when a valve opening signal given by a main controller of the wall-mounted furnace is received, the controlled gas channel valve is opened, when the electromagnetic valve fails to control the gas channel to be opened, the minimum power of the wall-mounted furnace cannot be changed, the minimum temperature rise cannot be changed, the overheating phenomenon of bathroom hot water in summer cannot occur, and the use comfort of users is improved.

Drawings

FIG. 1 is a schematic structural view of a gas segment valve in embodiment 1;

FIG. 2 is a schematic structural view of a gas segment valve in embodiment 2;

FIG. 3 is a schematic disassembled view of the gas segment valve in the embodiment 2;

FIG. 4 is a schematic structural view of a gas segment valve in embodiment 3;

FIG. 5 is a schematic disassembled view of the gas segment valve in the embodiment 3;

FIG. 6 is a sectional view of a gas segment valve in embodiment 3;

in the drawings: the gas valve comprises a main valve body 1, a gas inlet 101, a first gas outlet 102, a connecting port 103, a connecting nut 104, a clamp spring through hole 105, a first auxiliary valve body 2, a second gas outlet 201, a first electromagnetic valve 202, a first mounting port 203, a sealing cover 3, a second auxiliary valve body 4, a third gas outlet 401, a second electromagnetic valve 402, a second mounting port 403, a connecting head 404, a clamping groove 405 and a clamp spring 5.

Detailed Description

Example 1:

as shown in fig. 1, a gas segment valve includes a main valve body 1 and a first auxiliary valve body 2 which are communicated with each other, the main valve body 1 is provided with a gas inlet 101 and a first gas outlet 102 which are communicated with each other, the first auxiliary valve body 2 is provided with a second gas outlet 201 and a first electromagnetic valve 202 for controlling the on-off of the second gas outlet 201, the first electromagnetic valve 202 is a normally closed valve, the bottom of the first auxiliary valve body 2 is provided with a first mounting port 203, the first electromagnetic valve 202 is mounted in the first mounting port 203 through a screw, one side of the main valve body 1, which is far away from the first auxiliary valve body 2, is communicated with a connection port 103, the connection port 103 is provided with a sealing cover 3, and the sealing cover 3 is pressed at the connection port 103 through an adhesive to seal, which is a two-segment valve with standardization.

In one embodiment, a connection nut 104 is fixedly connected to the gas inlet 101, the connection nut 104 is used for being in threaded connection with a gas pipeline, and the connection nut 104 is in threaded connection with an external gas pipeline, so that the connection and disconnection are convenient.

The working principle of the two-stage valve in the embodiment is as follows: when the wall-mounted boiler needs bathroom hot water, gas enters the first gas outlet 102 through the gas inlet 101, the gas needed by ignition is provided, and bathroom water is heated after ignition. Bathroom temperature of intaking in winter is low, only leans on the first gas export 102 burning heat transfer of the end of opening normally to be unable bathroom and sets up the required power of temperature, and the opening signal that wall hanging stove main control unit given can be received to first solenoid valve 202 this moment, and the gas provides the gas for the combustor through second gas export 201, makes the combustor arrange the burning entirely, and the play water temperature reaches the user and sets up the demand. The bathroom is higher in summer, and it is better to require the input power of hanging stove less, and the minimum temperature rise is lower more comfortable, and at this moment, need not to open first solenoid valve 202, keeps its normal close, only needs first gas outlet 102 to provide the gas burning can satisfy the demand. The two-section valve of this embodiment can satisfy the bathroom comfortable experience requirement that winter bathroom temperature of intaking is low, summer bathroom temperature of intaking is high, can energy-conserving gas again.

And what first solenoid valve 202 adopted is the normally closed valve, and the normal condition is closed state, just opens the gas channel valve of control when receiving hanging stove main control unit and giving the valve opening signal, and when the solenoid valve trouble can not control the gas channel and open, the minimum power of hanging stove can not change, and minimum temperature rise can not change yet, and the overheated phenomenon can not appear in summer bathroom hot water, has improved user's use travelling comfort.

Example 2:

as shown in fig. 2 and 3, the present embodiment is a three-stage valve which is assembled by externally connecting a second sub-valve body 4 to the structure of the two-stage valve of embodiment 1. The second sub-valve body 4 is provided with a third gas outlet 401 and a second electromagnetic valve 402 for controlling the on-off of the third gas outlet 401, the second electromagnetic valve 402 is a normally closed valve, a second mounting opening 403 is formed in the bottom of the second sub-valve body 4, and the second electromagnetic valve 402 is mounted in the second mounting opening 403 through screws. In the structure of the two-section valve, the sealing cover 3 is removed, screw holes for fixing screws are added on two sides of the connecting port 103, one side of the second auxiliary valve body 4 is correspondingly connected with the screw holes on two sides of the connecting port 103 through screws, so that the second auxiliary valve body 4 is fixedly connected and communicated with the main valve body 1, the modular assembly is realized, the convenience and the rapidness are realized, and the structure is simple.

In one embodiment, a seal ring is provided at the connection between the second sub-valve body 4 and the connection port 103 to enhance the sealing property of the connection.

The working principle of the three-stage valve in this embodiment is as follows: when the wall-mounted boiler needs bathroom hot water, gas enters the first gas outlet 102 through the gas inlet 101, the gas needed by ignition is provided, and bathroom water is heated after ignition. Winter bathroom temperature of intaking is low, only lean on the first gas export 102 burning heat transfer of the end of opening normally to be unable to reach bathroom and set up the required power of temperature, the opening signal (specifically need control according to combustor segmentation design) that wall hanging stove main control unit given can be received to first solenoid valve 202 or second solenoid valve 402 this moment, the gas provides the gas for the combustor through second gas export 201 or third gas export 401, make the combustor burn according to segmentation control, if the leaving water temperature still can not reach when setting up the requirement this moment, two solenoid valves will all be opened, make the combustor arrange burning entirely, with the required power operation of setting up the temperature. When the bathroom influent water temperature is higher in summer, the input power of the wall-mounted furnace is required to be smaller as well as better, the lowest temperature rise is lower and more comfortable, at the moment, the three-section valve has more advantages than the two-section valve in the wall-mounted furnace with the same input power, the number of the corresponding fire rows of the combustor connected with the normally open first gas outlet 102 is smaller than that of the corresponding combustor fire rows of the two-section valve, so that the minimum power can be very low, the comfort is higher, and the requirement can be met only by providing gas combustion through the normally open first gas outlet 102. The three-section valve can meet the hot water requirement in winter and summer on the premise of the two-section valve, and enables bathroom hot water to be more comfortable to adjust, and is more gas-saving than the two-section valve.

And first solenoid valve 202 and second solenoid valve 402 all adopt the normally closed valve, and the normal condition is closed state, just opens the gas channel valve of controlled when receiving hanging stove main control unit and giving the valve opening signal, and when the solenoid valve trouble can not control the gas channel and open, the minimum power of hanging stove can not change, and minimum temperature rise also can not change, and the overheated phenomenon can not appear in summer bathroom hot water, has improved user's use travelling comfort.

Example 3:

as shown in fig. 4 to 6, the present embodiment is similar to embodiment 2 except that the second sub-valve body 4 is connected to the main valve body 1 in a different manner. One side of the second auxiliary valve body 4 is provided with a connector 404, the connector 404 is provided with a clamping groove 405, the two sides of the connector 103 are provided with clamp spring via holes 105, after the connector 404 is inserted into the connector 103, the clamp springs 5 are inserted into the connector 103 from the clamp spring via holes 105 and penetrate out of the connector 103, and meanwhile, the two sides of the clamp springs 5 are arranged in the clamping groove 405, so that the connector 404 and the connector 103 are clamped and fixed. This embodiment utilizes the cooperation of jump ring 5 and jump ring via hole 105, makes connector 404 peg graft the chucking in connector 103, guarantees the steadiness of being connected of the vice valve body 4 of second and the main valve body 1, adopts the mode of pegging graft to realize the modularization equipment, convenient and fast, and simple structure.

In one embodiment, a sealing ring is arranged between the connector 404 and the connection port 103 to enhance the sealing performance of the connection.

The sectional valve structure has both standardized and modular structure design, two commonly used sectional valves are used as standardized platforms, when sectional control needs to be added, the sectional valves are added on the two sectional valve structures and are assembled in a modular mode through connecting ports, and compared with the existing sectional valves which are not expanded by the standard platforms, the sectional valve structure is low in mold investment, high in universality and flexible in structural design.

The electromagnetic valve on the section valve is a normally closed valve, under normal conditions, the electromagnetic valve is in a closed state for the controlled gas channel, when a valve opening signal given by a main controller of the wall-mounted furnace is received, the controlled gas channel valve is opened, when the electromagnetic valve fails to control the gas channel to be opened, the minimum power of the wall-mounted furnace cannot be changed, the minimum temperature rise cannot be changed, the overheating phenomenon of bathroom hot water in summer cannot occur, and the use comfort of users is improved.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a gas sectional valve, includes the main valve body (1) and the first vice valve body (2) that communicate each other, main valve body (1) is equipped with gas import (101) and the first gas export (102) that communicate each other, first vice valve body (2) are equipped with second gas export (201) and are used for control first solenoid valve (202) of second gas export (201) break-make, its characterized in that, first solenoid valve (202) are the normally closed valve, main valve body (1) is kept away from one side intercommunication of first vice valve body (2) has connector (103), connector (103) are sealed with sealed lid (3), or connector (103) are used for dismantling with second vice valve body (4) and are connected and communicate with each other.

2. The gas segment valve of claim 1, wherein: the second auxiliary valve body (4) is provided with a third fuel gas outlet (401) and a second electromagnetic valve (402) for controlling the on-off of the third fuel gas outlet (401), and the second electromagnetic valve (402) is a normally-closed valve.

3. The gas segment valve of claim 2, wherein: screw holes are formed in two sides of the connecting port (103), one side of the second auxiliary valve body (4) is correspondingly connected with the screw holes in the two sides of the connecting port (103) through screws, and the connecting port (103) is communicated with the second auxiliary valve body (4).

4. The gas segment valve of claim 3, wherein: and a sealing ring is arranged at the joint of the second auxiliary valve body (4) and the connecting port (103).

5. The gas segment valve of claim 1, wherein: the sealing cover (3) is tightly pressed at the connecting port (103) through viscose glue for sealing.

6. The gas segment valve of claim 2, wherein: one side of the second auxiliary valve body (4) is provided with a connector (404), and the connector (404) is inserted into the connector (103) for clamping in an inserting manner.

7. The gas segment valve of claim 6, wherein: connector (404) are equipped with draw-in groove (405), the both sides of connector (103) are equipped with jump ring via hole (105) connector (404) are pegged graft income behind connector (103), follow jump ring (5) jump ring via hole (105) are pegged graft and are run through out connector (103), and the both sides of jump ring (5) are arranged in simultaneously in draw-in groove (405), so that connector (404) with connector (103) chucking is fixed.

8. The gas segment valve of claim 7, wherein: and a sealing ring is arranged between the connector (404) and the connecting port (103).

9. The gas segment valve of claim 1, wherein: the bottom of the first auxiliary valve body (2) is provided with a first mounting opening (203), and the first electromagnetic valve (202) is mounted in the first mounting opening (203) through a screw.

10. The gas segment valve of claim 2, wherein: and a second mounting opening (403) is formed in the bottom of the second auxiliary valve body (4), and the second electromagnetic valve (402) is mounted in the second mounting opening (403) through a screw.