CN215258151U

CN215258151U - Valve body assembly and deluge alarm valve

Info

Publication number: CN215258151U
Application number: CN202023014925.1U
Authority: CN
Inventors: 黄永发; 黄海斌; 陈敦形
Original assignee: Chuanan Fire Rpotection Industrial Co ltd
Current assignee: Chuanan Fire Rpotection Industrial Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-12-21
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a valve body assembly, which comprises a valve body and a valve clack, wherein a caulking groove is formed at the top of the valve body, a piston cavity is arranged in the valve body, a piston is vertically and slidably arranged in the piston cavity, a piston rod is sleeved on the piston, one end of the piston rod is penetrated and extended to the top of the valve clack, the other end of the piston rod is abutted with a spring, and the spring is abutted against the bottom of the piston cavity; the deluge alarm valve with the valve body assembly comprises an alarm pipeline, a pressure switch, a hydraulic alarm bell and a valve body assembly, wherein the alarm pipeline is arranged on the valve body assembly, and the pressure switch and the hydraulic alarm bell are sequentially connected on the alarm pipeline. The utility model discloses a pressurization start-up formula deluge valve of the sealed valve clack of big little double valve clack structure, through doing logical piston and piston chamber runner, realize that dynamic decompression realizes opening wide and reliably resetting of valve clack.

Description

Valve body assembly and deluge alarm valve

Technical Field

The utility model relates to a fire-fighting equipment field, more specifically say, relate to a valve body subassembly and have this valve body subassembly drench alarm valve.

Background

Piston alarm valve that drenches on the existing market generally adopts single valve lamella structure, and the starting pressure ratio is big, if will start than adjusting to below 50, needs great piston space, causes the whole external expanding of middle chamber of valve, and pleasing to the eye degree descends and the cost rises. Usually, the lower piston cavity is communicated with a pipe network through a middle piston hole, although the structure is simpler, the defects are obvious: after the valve clack is opened, pressure water enters the lower piston cavity, the pressures of the upper cavity and the lower cavity are almost balanced because the two cavities are both hydrostatic pressure, the piston and the valve clack assembly tend to recover a closed state under the action of spring force, the valve group is difficult to fully open even through various adjustments, and even the flow is increased, the valve group can be automatically reset; the piston lower cavity is not communicated with a pipe network, and the lower cavity is provided with an opening communicated with the atmosphere.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure realizes the novel alarm valve that drenches with reliable pressurization start-up formula that resets of full open of valve clack through the inside runner of ingenious design to solve the problem that proposes among the above-mentioned background art.

The utility model discloses technical scheme as follows: the utility model provides a valve body assembly, including the valve body and be used for with the valve body cooperatees and forms the valve clack of opening and close the structure, the valve body top is formed with a caulking groove, the valve clack install in the caulking groove below, the valve clack is including big valve clack and the little valve clack of butt in proper order, be provided with a piston chamber in the valve body, a pressurization decompression mouth has been seted up on the piston chamber, the vertical slidable of piston intracavity is provided with a piston, the upper end of piston has cup jointed a piston rod, the one end of piston rod is passed little valve clack extends to big valve clack top, the other end butt of piston rod has a spring, the lower tip of spring support by in the bottom in piston chamber.

Preferably, the valve body comprises an upper valve body and a lower valve body connected with the upper valve body, and the piston cavity is arranged between the upper valve body and the lower valve body.

Preferably, an alarm port is formed in one side, close to the caulking groove, of the upper valve body, and a pressurizing connecting port and a testing connecting port are formed in the bottom side of the lower valve body respectively.

Preferably, a water outlet channel is arranged on the piston cavity and away from the pressurizing and depressurizing port, and a water outlet communicated with the outside is arranged on the water outlet channel.

Another aspect of the present invention provides a deluge alarm valve, comprising an alarm pipeline, a pressure switch, a hydraulic alarm bell, and a valve body assembly as described above, wherein the alarm pipeline is installed on the valve body, the pressure switch and the hydraulic alarm bell are sequentially connected to the alarm pipeline, the alarm pipeline is connected to the water outlet, a test pipeline is connected to the test connection port, the test pipeline is connected to the alarm pipeline, an alarm bell test ball valve is disposed on each of the test pipeline and the alarm pipeline, an automatic drip valve is disposed in the alarm pipeline in the opposite direction, and a pressure servo device connected to the pressure and pressure relief port is further included, the pressure servo device includes a servo mechanism and a pressure gauge connected to the servo mechanism, the pressure gauge is connected to the pressure connection port through a pipeline, and a filter is arranged on a pipeline between the pressure gauge and the pressurizing connecting port.

The utility model discloses an on the other hand still provides a deluge alarm valve, reach as above including warning pipeline, pressure switch, water conservancy alarm bell, throttling arrangement and the valve body subassembly, throttling arrangement install in water outlet department, the warning pipe connection in warning mouth department.

Compared with the prior art, the utility model can be known from the above description, the utility model has the following advantages:

1. the valve clack of the valve body component of the utility model adopts a big-small double-valve clack sealing structure, and the required starting pressure ratio can be obtained by adjusting the size of the small valve clack;

2. the valve body component realizes dynamic pressure reduction by making the flow passage which leads to the piston and the piston lower cavity, thus realizing full opening of the valve clack, and pressure water flows into the piston lower cavity at the moment of opening, can play a role of buffering left and right, and realizes stable opening;

3. the utility model discloses a deluge alarm valve still has the mode of multiple pipeline overall arrangement, through increasing or changing pressurization pressure release mouth, changes cavity runner position, as long as through opening the back, the piston cavity of resorption is flowed through to the pressurized water that fills in the valve body, and the last drive water conservancy alarm bell is until discharging or at last through throttling arrangement discharge gate, and the developments decompression of realization piston cavity of resorption can.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a valve body assembly provided by the present invention;

fig. 2 is a schematic structural view of a valve body assembly provided by the present invention;

fig. 3 is a schematic structural view of a valve body assembly provided by the present invention;

fig. 4 is a schematic structural view of a first embodiment of a deluge alarm valve provided by the present invention;

fig. 5 is a schematic structural view of a first embodiment of a deluge alarm valve provided by the present invention;

fig. 6 is a schematic structural view of a first embodiment of a deluge alarm valve provided by the present invention;

fig. 7 is a schematic structural view of a second embodiment of a deluge alarm valve provided by the present invention;

fig. 8 is a schematic structural view of a second embodiment of a deluge alarm valve provided by the present invention;

the meaning of the reference symbols in the figures: the automatic alarm valve comprises a valve body 1, an upper valve body 2, a lower valve body 3, an alarm port 4, a pressurization connecting port 5, a test connecting port 6, a valve clack 7, a valve clack 8, a valve clack 9, an embedding groove 10, a piston cavity 11, a pressurization and decompression port 12, a water outlet flow channel 13, a water outlet 14, a piston 15, a piston rod 16, a spring 17, an alarm pipeline 18, a pressure switch 19, a hydraulic alarm 20, an alarm test ball valve 21, an automatic water dropping valve 22, a servo mechanism 23, a pressure gauge 24, a filter 25 and a throttling device 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a valve body assembly comprises a valve body 1 and a valve flap 7, the valve flap 7 is used for being matched with the valve body 1 to form an opening and closing structure, an insertion groove 10 is formed at the top of the valve body 1, the insertion groove 10 is used for being connected with a fire-fighting pipe network, the valve flap 7 is installed below the insertion groove 10, the valve flap 7 comprises a large valve flap 8 and a small valve flap 9 which are abutted in sequence, a piston cavity 11 is arranged in the valve body 1, a pressurization and decompression opening 12 is formed in the piston cavity 11, a water outlet flow channel 13 is arranged on the piston cavity 11 and is far away from the pressurization and decompression opening 12, a water outlet 14 communicated with the outside is arranged on the water outlet flow channel 13, a piston lower cavity 15 is vertically arranged in the piston cavity 11 in a sliding manner, the piston cavity 11 is divided into an upper cavity and an upper cavity by the piston 15, a piston rod 16 is sleeved at the upper end of the piston 15, one end of the piston rod 16 penetrates through the small valve flap 9 and extends to the top of the large valve flap 8, the other end of the piston rod 16 is abutted with a spring 17, and the lower end of the spring 17 is abutted with the bottom of the piston cavity 11.

Valve body 1 include valve body 2 and with go up the lower valve body 3 that valve body 2 connects, piston chamber 11 install in go up valve body 2 with down between the valve body 3, in go up valve body 2 and be close to an alarm mouth 4 has been seted up to caulking groove 10 one side, in a pressurization connector 5 and a test connector 6 have not been seted up to 3 bottom side parts of valve body down.

The water supply side keeps certain pressure in the servo state, and the sealing valve clack 8 is pressed to the sealing surface; at the moment of starting, the small valve clacks 9 are firstly pulled downwards by the piston rods 16, and pressure water in the valve body 1 enters a pipe network from gaps between the large valve clacks 9 and the small valve clacks 9; after the small valve clack 9 is started, pressure water enters the pipe network side, so that the pipe network side is changed from non-pressure to pressure, and the water passing groove is formed in the middle of the large valve clack 8, so that the actual pressure area is reduced, and then the large valve clack is pulled open by the piston rod 16 to quickly reach a fully open state.

Referring to fig. 4-8, a deluge alarm valve includes an alarm pipeline 18, a pressure switch 19, a hydraulic alarm bell 20, and valve body components described above, where the alarm pipeline 18 is installed on the valve body 1, the pressure switch 19 and the hydraulic alarm bell 20 are sequentially connected to the alarm pipeline 18, the test connection port 6 is connected to a test pipeline, the test pipeline is communicated with the alarm pipeline 18, the test pipeline and the alarm pipeline 18 are both provided with an alarm bell test ball valve 21, and an automatic drip valve 22 is arranged in the opposite direction of the alarm pipeline 18.

Deluge alarm valve still include with the pressure servo device that pressurization decompression mouth 12 is connected, pressure servo device include servo 23 and with the manometer 24 that servo 23 is connected, manometer 24 with be connected through the pipeline between the pressurization connector 5, just manometer 24 with be provided with a filter 25 on the pipeline between the pressurization connector 5.

The first embodiment is as follows:

as shown in fig. 4-6, a deluge alarm valve includes an alarm pipeline 18, a pressure switch 19, a hydraulic alarm 20, and valve body assemblies as described above, the alarm pipeline 18 is connected to the water outlet 14, the pressure switch 19 and the hydraulic alarm 20 are sequentially connected to the alarm pipeline 18, a test pipeline is connected to the test connection port 6, the test pipeline is communicated with the alarm pipeline 18, alarm test ball valves 21 are disposed on the test pipeline and the alarm pipeline 18, and an automatic drip valve 22 is disposed in the opposite direction of the alarm pipeline 18.

The servo mechanism 23 keeps a closed state in a servo state, the system side of the pipe network, the lower cavity of the piston, the hydraulic alarm bell 20 and the automatic water dropping valve 22 are communicated with the atmosphere, and the condensed water and possible micro-leakage water of the pipeline pass through the channel and are finally discharged through the automatic water dropping valve 22;

because the lower piston cavity is communicated with the pipe network, the hydraulic alarm bell 20 and the automatic water dropping valve 22, air or residual water in the lower piston cavity can be quickly emptied in multiple ways at the moment of starting the valve group. When pressure water enters a pipe network, a part of water flows to the lower cavity through the inner hole of the piston rod 16, the recoil of the piston 15 is buffered, the water flows to the hydraulic alarm bell 20 and the pressure switch 19, and finally the water is discharged from the alarm bell, because the throttling at the inlet D of the piston rod 16 and the continuous pressure relief of the hydraulic alarm bell 20, the pressure of the lower cavity of the piston is always lower than that of the upper cavity of the piston, and the downward thrust of the piston 15 is far greater than the upward thrust, so that the necessary starting pressure of the pressure switch 19 and the hydraulic alarm bell 20 is ensured, the full opening of the valve clack 8 is realized, and the excellent performance and the very simple pipeline layout are realized;

when the valve is reset, the upper piston cavity is decompressed, and pressure water still enters the lower piston cavity before the valve clack 8 is closed, so that the pressure of the lower piston cavity is larger than that of the upper cavity, the piston 15 and the valve clack 8 are quickly restored to the original positions under the action of the water pressure and the force of the spring 17, the valve group enters a servo state, and the residual water in the pipeline is emptied through the automatic water dropping valve 22.

In an extreme state, if the valve clack 8 is not completely reset, the alarm bell testing ball valve 21 can be opened, water flow reversely flows into the piston lower cavity along the flow channel, the boosting is reset, and then the testing ball valve is closed.

Example two:

as shown in fig. 7-8, a deluge alarm valve includes an alarm pipeline 18, a pressure switch 19, a hydraulic alarm bell 20, a throttling device 26, and valve body assemblies as described above, where the throttling device 26 is installed at the water outlet 14, the alarm pipeline 18 is connected to the alarm port 4, the pressure switch 19 and the hydraulic alarm bell 20 are sequentially connected to the alarm pipeline 18, the test connection port 6 is connected to a test pipeline, the test pipeline is communicated with the alarm pipeline 18, the test pipeline and the alarm pipeline 18 are both provided with an alarm bell test ball valve 21, and an automatic drip valve 22 is arranged in the opposite direction of the alarm pipeline 18.

The servo mechanism 23 keeps a closed state in a servo state, and a system side of a pipe network, a piston lower cavity and a throttling device 26 form a passage;

because the lower piston cavity is communicated with both the pipe network and the throttling device 26, air or residual water in the lower piston cavity can be quickly emptied in multiple ways at the moment of starting the valve group. And when pressure water enters a pipe network, a part of water flows to the lower cavity through the inner hole of the piston rod 16, the recoil of the piston 15 is buffered, and the water is discharged through the throttling device 26, because the throttling at the inlet D of the piston rod 16 and the continuous pressure relief of the throttling device 26, the pressure of the lower cavity is always lower than that of the upper cavity, the downward thrust of the piston 15 is far greater than the upward thrust, and the full and automatic reset of the valve clack 8 is ensured.

In order to realize the principle, various pipeline layout modes can be provided, for example, pressurization and pressure relief ports are added or changed, and the position of a lower cavity flow channel is changed, but the dynamic pressure reduction of the lower cavity of the piston is realized as long as after the piston is opened, pressure water flows through the lower cavity of the piston through the piston rod 16, and finally the hydraulic alarm bell 20 is driven until the pressure water is discharged or finally the pressure water is discharged through the throttle device 26.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a valve body subassembly, including valve body (1) and be used for with valve body (1) cooperate and form valve clack (7) of opening and close the structure, its characterized in that: valve body (1) top is formed with an caulking groove (10), valve clack (7) install in caulking groove (10) below, valve clack (7) are including big valve clack (8) and little valve clack (9) of butt in proper order, be provided with a piston chamber (11) in valve body (1), a pressurization decompression mouth (12) have been seted up on piston chamber (11), vertical slidable is provided with a piston (15) in piston chamber (11), the upper end cover of piston (15) has been cup jointed a piston rod (16), the one end of piston rod (16) is passed little valve clack (9) and extend to big valve clack (8) top, the other end butt of piston rod (16) has a spring (17), the lower tip of spring (17) lean on in the bottom of piston chamber (11).

2. A valve body assembly as defined in claim 1, wherein: the valve body (1) comprises an upper valve body (2) and a lower valve body (3) connected with the upper valve body (2), and the piston cavity (11) is arranged between the upper valve body (2) and the lower valve body (3).

3. A valve body assembly as defined in claim 2, wherein: an alarm opening (4) is formed in one side, close to the caulking groove (10), of the upper valve body (2), and a pressurizing connecting opening (5) and a testing connecting opening (6) are formed in the bottom side of the lower valve body (3) respectively.

4. A valve body assembly as defined in claim 3, wherein: a water outlet flow channel (13) is arranged on the piston cavity (11) far away from the pressurizing and depressurizing port (12), and a water outlet (14) communicated with the outside is arranged on the water outlet flow channel (13).

5. The utility model provides a deluge alarm valve which characterized in that: comprises an alarm pipeline (18), a pressure switch (19), a hydraulic alarm bell (20) and the valve body assembly of claim 4, wherein the alarm pipeline (18) is arranged on the valve body (1), the pressure switch (19) and the hydraulic alarm bell (20) are sequentially connected on the alarm pipeline (18), the alarm pipeline (18) is connected at the water outlet (14), a test pipeline is connected at the test connecting port (6), the test pipeline is communicated with the alarm pipeline (18), alarm bell test ball valves (21) are respectively arranged on the test pipeline and the alarm pipeline (18), an automatic water dropping valve (22) is arranged in the opposite direction of the alarm pipeline (18), the hydraulic alarm valve further comprises a pressure servo device connected with the pressurization and decompression port (12), the pressure servo device comprises a servo mechanism (23) and a pressure gauge (24) connected with the servo mechanism (23), the pressure gauge (24) is connected with the pressurizing connecting port (5) through a pipeline, and a filter (25) is arranged on the pipeline between the pressure gauge (24) and the pressurizing connecting port (5).

6. The utility model provides a deluge alarm valve which characterized in that: the alarm valve comprises an alarm pipeline (18), a pressure switch (19), a hydraulic alarm bell (20), a throttling device (26) and the valve body assembly of claim 5, wherein the throttling device (26) is arranged at the water outlet (14), and the alarm pipeline (18) is connected to the alarm port (4).