CN215691289U

CN215691289U - Electric selection valve of fire extinguishing device

Info

Publication number: CN215691289U
Application number: CN202121111329.7U
Authority: CN
Inventors: 朱劲武; 周铁祥
Original assignee: Beijing Leader Haixin Gas Fire Extinguishing System Equipment Co ltd
Current assignee: Beijing Leader Haixin Gas Fire Extinguishing System Equipment Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-02-01
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses an electric selection valve of a fire extinguishing device, which comprises a valve body, a valve core, a starting device and a signal feedback device, wherein the valve body is of a cylinder structure of a through hole penetrating through the top and the bottom, the bottom end of the through hole is an inlet, a discharge port is arranged on the side wall, the discharge port and the signal feedback device are oppositely arranged, the signal feedback device is arranged on the side wall of the valve body, the measuring end of the signal feedback device is communicated with the through hole I, the valve core comprises a valve core body and a sealing block, the valve core body is arranged in the through hole I, the sealing block and the valve core body are of an integrally formed structure, the edge of the sealing block is lapped on the edge of the outlet side of the through hole I, the starting device comprises a bracket, a heating electric starter, a temperature sensing glass ball and a regulating piece, the bracket is arranged at the top of the valve body, and the top end is provided with a first through hole, the regulating piece is arranged in the first through hole, the temperature sensing glass ball is arranged in the support and is abutted up and down, the heating electric starter is connected with the power supply, and the heating end is connected with the temperature sensing glass ball. The utility model has simple structure, low manufacturing cost, good and stable sealing effect.

Description

Electric selection valve of fire extinguishing device

Technical Field

The utility model relates to the field of auxiliary fire-fighting tools, in particular to an electric selection valve of a fire extinguishing device.

Background

At present, automatic fire extinguishing equipment is installed in equipment facilities such as a power distribution room, an electrical cabinet, a lithium battery cabinet, a mobile communication base station and the like, and attention is paid to the installation of the automatic fire extinguishing equipment. However, many fire extinguishing apparatuses used in the prior art can only protect one protection area or one apparatus, and do not adopt a proper electric selection valve of an automatic fire extinguishing apparatus to protect several protection areas or multiple apparatuses at the same time, which causes repeated configuration of the fire extinguishing apparatus and waste of fire extinguishing agent, and the redundant fire extinguishing agent is easy to cause environmental pollution. The selector valve is an important part in the fire extinguishing system, is arranged between the shunt row and the fire extinguishing pipeline in a protected area, and is used for controlling the on-off of the remote delivery of the fire extinguishing gas. However, the existing selector valve is complicated in structure, the conditions of untight closing and untight opening are easy to occur when gas pressure acts on the valve core for a long time, and finally, fire extinguishing agents are leaked to pollute a protection area or the valve core is blocked and cannot be opened when a fire really occurs, so that fire extinguishing is affected, and great loss is generated.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses an electric selection valve of a fire extinguishing device, which comprises a valve body, a valve core, a starting device and a signal feedback device, wherein the starting device and the signal feedback device are arranged at the top end of the valve body, the valve body is of a cylinder structure with a first through hole penetrating through the top and the bottom, the bottom end of the first through hole is an inlet, the side wall of the first through hole is provided with a discharge port communicated with the first through hole, the discharge port and the signal feedback device are oppositely arranged, the signal feedback device is arranged on the side wall of the valve body, a measuring end of the signal feedback device is communicated with the first through hole, the valve core comprises a valve core body and a sealing block, the valve core body is arranged in the first through hole and shares the same axis with the first through hole to seal the signal feedback device, the inlet and the discharge port, the sealing block and the valve core body are of an integrally formed structure, the edge of the sealing block is lapped on the edge of the outlet side of the first through hole, and the starting device comprises a bracket, a heating electric starter, The temperature sensing glass ball and the adjusting part, the support mounting is at the valve body top, and the through-hole two is seted up on the top, the adjusting part is installed in through-hole two, the temperature sensing glass ball sets up in the support, its top and adjusting part butt, bottom and case butt, heating electric starter connects power and heating end and is connected with the temperature sensing glass ball.

Furthermore, the valve core body is horizontally provided with a mounting groove along the circumference, first sealing elements are arranged in the mounting groove, the number of the first sealing elements is larger than 1, the first sealing elements are respectively arranged on two sides of the release port and protrude out of the valve core body to be abutted against the inner wall of the valve body.

Furthermore, a first groove is formed in the top surface of the valve core outside the valve body, the first groove enables the temperature sensing glass ball to be fixed in the vertical direction, a second groove is formed in one end, in contact with the temperature sensing glass ball, of the adjusting piece, and the first groove and the second groove are arranged oppositely.

Furthermore, the valve body is provided with an interface which is integrally formed with the valve body, the interface is communicated with the first through hole, the signal feedback device is installed on the interface, and the measuring end is located in the interface.

Furthermore, the signal feedback device is also provided with a second sealing element at the measuring end of the interface, the second sealing element is of an annular structure and is sleeved at the part of the signal feedback device, which is arranged in the interface, and the second sealing element is abutted against the inner wall of the interface.

Further, the signal feedback device is a diaphragm type pressure switch.

Furthermore, the regulating part is of a columnar structure, an external thread is arranged on the column body, and the second through hole is provided with an internal thread matched with the external thread of the regulating part, so that the regulating part can be screwed in and out.

Furthermore, the heating electric starter is a resistance wire heating electric starter.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the heating starting device is arranged outside the valve body, and in order to prevent the temperature sensing glass ball from being broken by heat to influence fire extinguishing when the fire is small, the temperature sensing glass ball is broken by adopting an electric heating mode to open the valve, so that the structure is simple, and the starting is rapid and reliable. The valve core is provided with the groove, the sealing element is arranged on the valve core, the opening speed is not influenced while the better sealing effect is achieved, and the signal feedback device timely feeds back the fire extinguishing agent to an external fire alarm system after detecting the fire extinguishing agent, so that safety is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a valve body and a valve core of the present invention;

fig. 3 is a schematic structural view of the valve body of the present invention.

Legend: 1. a valve body; 11. a first through hole; 12. an inlet; 13. a discharge port; 14. an interface; 2. a valve core; 21. a valve core body; 211. mounting grooves; 22. a sealing block; 23. a first groove; 24. a first sealing element; 3. starting the device; a support; 311. a second through hole; 32. heating the electric starter; 33. a temperature-sensitive glass ball; 34. an adjustment member; 341. a second groove; 35. a second sealing element; 4. and a signal feedback device.

Detailed Description

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The utility model is further described below with reference to the accompanying drawings, but is not limited to the contents of the specification.

As shown in figure 1, the utility model discloses an electric selection valve of a fire extinguishing device, which comprises a valve body 1, a valve core 2, a starting device 3 and a signal feedback device 4, wherein the starting device 3 and the signal feedback device 4 are arranged at the top end of the valve body 1, the signal feedback device 4 can prompt fire alarm or leakage, the valve body 1 is of a cylinder structure with a through hole I11 penetrating through the top bottom, the bottom end of the through hole I11 is provided with an inlet 12 connected with a fire extinguishing agent bottle, the side wall of the through hole I is provided with a discharge port 13 communicated with the through hole I11, a pipeline is connected to a fire extinguishing area, the discharge port 13 and the signal feedback device 4 are oppositely arranged, the signal feedback device 3 is arranged on the side wall of the valve body 1, a measuring end can contact fire extinguishing medium feedback information, the valve core 2 comprises a valve core body 21 and a sealing block 22, the valve core body 21 and the sealing block 22 are integrally formed, the section is in a T shape, the valve core body 21 is arranged in the through hole I11 and is coaxial with the through hole I11, with signal feedback device 4, import 11 and let out and put mouthful 13 sealedly, seal block 22 is the integrated into one piece structure with case body 21, and the edge overlap joint on the edge with a 11 outlet sides of through-hole, starting drive 3 includes support 31, heat electric initiator 32, temperature sensing glass ball 33 and regulating part 34, support 31 installs at 1 top of valve body, and two 311 of through-hole are seted up on the top, regulating part 34 is installed in two 311 of through-hole, temperature sensing glass ball 33 sets up in support 31, its top and regulating part 34 butt, bottom and case 2 butt, for preventing that the temperature sensing glass ball can not meet the thermal fracture influence when the intensity of a fire is less and put out a fire, be connected heating end and temperature sensing glass ball 33 with heat electric initiator 32, promote the speed of breaking of temperature sensing glass ball 33, promote fire extinguishing efficiency. The adjusting piece 34 can adjust the tightness according to the size of the temperature sensing glass ball 33, so that the temperature sensing glass ball 33 is tightly propped between the valve core 2 and the adjusting piece 34 to seal the first through hole 11. The space height of the support 31 is smaller than the whole length of the valve body 2, so that when the pressure of the fire extinguishing agent enables the valve body 2 to move upwards, the situation that the fire extinguishing agent directly breaks away from the through hole 11 due to overlarge pressure and cannot seal the through hole 11 to cause the fire extinguishing agent to flow out of an outlet of the through hole 11 is avoided, and the situation that the fire extinguishing agent is long in conveying time or cannot be effectively conveyed due to pressure dispersion when the fire extinguishing agent is discharged is avoided, and the optimal fire extinguishing time is missed.

As shown in fig. 2, the valve body 21 is horizontally provided with a mounting groove 211 along the circumference, wherein a first sealing member 24 is arranged in the mounting groove 211, the number of the first sealing members 24 is more than 1, the first sealing members are respectively arranged at two sides of the discharge port B, and the protruding valve body 21 abuts against the inner wall of the valve body 1, preferably, the first sealing member is an o-shaped sealing ring. Set up sealing member 24 on the case body 21, sealed through-hole 11 that can be better, sealing member 24 sets up in mounting groove 211, and in order to avoid direct cover to establish the condition that sealing member 24 drops on the case body 21, and set up two spaced sealing members and can make the case motion more stable, produce when avoiding single sealing washer when installation with discharge and rock the influence installation and discharge. When the selector valve is opened, the valve core body 21 and the first sealing piece 24 move upwards simultaneously, so that the fire extinguishing agent can flow out of the discharge port 13, and the top end of the bracket 31 limits the movement range of the valve core 2, so that the valve core body 21 cannot be separated from the first through hole 11.

As shown in fig. 1 and 2, a first groove 23 is formed in a top surface of a portion of the valve element 2 outside the valve body 1, the first groove 23 enables the temperature sensing glass ball 33 to be fixed in the vertical direction, a second groove 341 is formed in one end, contacting the temperature sensing glass ball, of the adjusting piece 34, and the first groove 23 and the second groove 341 are arranged oppositely. The first groove and the second groove are arranged to fix the top and bottom ends of the temperature sensing glass ball 33, so that the temperature sensing glass ball 33 is more stable in the bracket 31, and the first groove and the second groove can be formed according to the size and shape of the temperature sensing glass ball 33.

As shown in fig. 1-3, the valve body 1 is provided with a port 14 integrally formed therewith, the port 14 is communicated with the first through hole 11, the signal feedback device 4 is installed on the port 14, and the measuring end is located in the port 14. Preferably, the shape of the opening of the communication part of the interface 14 and the through hole I11 is matched with the shape of the measuring end head of the signal feedback device 4, so that the interface 14 can be sealed, and the pressure leakage of the fire extinguishing agent when the valve is opened is avoided.

As shown in fig. 1, the signal feedback device 4 is further provided with a second sealing element 35 on the measuring end of the interface 14, the second sealing element 35 is of an annular structure, and is sleeved on the portion of the signal feedback device 4 installed in the interface 14 and abutted against the inner wall of the interface 14, so as to better seal the interface 14, the second sealing element 35 may be multiple, and preferably, the second sealing element 35 is an O-ring.

As shown in fig. 1, the signal feedback device 4 is a diaphragm pressure switch, such as a jintai pneumatic QPM11-NC diaphragm pressure control switch, and the signal feedback device 4 closes a contact under the action of the pressure of the fire extinguishing agent, and feeds a fire extinguishing starting signal of the area back to a matched fire alarm system in time. The diaphragm type pressure switch has high precision and high stability.

As shown in fig. 1 and 2, the adjusting member 34 is a cylindrical structure, an external thread is provided on the cylinder, and the second through hole 311 is provided with an internal thread matched with the external thread of the adjusting member 34, so that the adjusting member 34 can be screwed in and out, and the locking capability of the adjusting member 34 is improved, thereby improving the convenient operation of the adjusting progress.

As shown in figure 1, the heating electric starter 32 is a resistance wire heating electric starter, the resistance wire heating is safe and reliable, and the selector valve can be quickly opened to extinguish fire in case of fire.

When a fire disaster occurs, the heating electric starter 32 installed on the selection valve corresponding to the protection area is electrified to generate heat, the temperature sensing glass ball 33 installed in the support 31 is heated and cracked, the temperature sensing glass ball 33 instantly bounces open under the action of pressure, the valve core 2 at the lower end of the temperature sensing glass ball 33 moves upwards under the action of pressure of a fire extinguishing agent, the selection valve is opened, the fire extinguishing agent flows to the discharge port 13 from the valve body inlet 12, the fire extinguishing agent is sprayed to the area where the fire disaster occurs through a pipeline connected with the outlet to extinguish the fire, meanwhile, the fire extinguishing agent also flows to the interface 14, the contact of the signal feedback device 4 is closed under the action of the pressure of the fire extinguishing agent, and a fire extinguishing starting signal of the area is timely fed back to the matched fire-fighting alarm system.

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. Not all embodiments are exhaustive. All obvious variations or modifications of the process variant belonging to the utility model are within the scope of protection of the utility model.

Claims

1. An electric selection valve of a fire extinguishing device is characterized by comprising a valve body (1), a valve core (2), a starting device (3) and a signal feedback device (4), wherein the starting device (3) and the signal feedback device (4) are installed at the top end of the valve body (1), the valve body (1) is of a cylinder structure with a first through hole (11) penetrating through the top and the bottom, the bottom end of the first through hole (11) is provided with an inlet (12), the side wall of the valve body is provided with a discharge port (13) communicated with the first through hole (11), the discharge port (13) and the signal feedback device (4) are oppositely arranged, the signal feedback device (4) is arranged on the side wall of the valve body (1), the valve core (2) comprises a valve core body (21) and a sealing block (22), the valve core body (21) is installed in the first through hole (11) and is coaxial with the first through hole (11) to seal the signal feedback device (4), the inlet (12) and the discharge port (13), seal block (22) and case body (21) are the integrated into one piece structure, and the edge overlap joint with through-hole one (11) outlet side on the edge, starting drive (3) are including support (31), heating electric starter (32), temperature sensing glass ball (33) and regulating part (34), support (31) are installed at valve body (1) top, and the top sets up through-hole two (311), regulating part (34) are installed in through-hole two (311), temperature sensing glass ball (33) set up in support (31), its top and regulating part (34) butt, bottom and case (2) butt, heating electric starter (32) are connected power and the heating end is connected with temperature sensing glass ball (33).

2. The electric selection valve of the fire extinguishing device according to claim 1, characterized in that the valve core body (21) is horizontally provided with a mounting groove (211) along the circumference, first sealing elements (24) are arranged in the mounting groove (211), the number of the first sealing elements (24) is more than 1, the first sealing elements are respectively arranged at two sides of the discharge opening (13), and the protruding valve core body (21) is abutted with the inner wall of the valve body (1).

3. The electric selector valve for the fire extinguishing device according to claim 1, wherein the valve core (2) is provided with a first groove (23) on the top surface of the part outside the valve body (1), the first groove (23) enables the temperature sensing glass ball (33) to be fixed in the vertical direction, one end of the adjusting piece (34) contacting with the temperature sensing glass ball is provided with a second groove (341), and the first groove (23) and the second groove (341) are arranged oppositely.

4. Fire extinguishing apparatus electric selector valve according to claim 1, characterized in that the valve body (1) is provided with a port (14) integrally formed therewith, the port (14) communicates with the first through hole (11), the signal feedback device (4) is mounted on the port (14), and the measuring end is located in the port (14).

5. The electric selector valve for fire extinguishing apparatus according to claim 4, wherein the signal feedback device (4) is further provided with a second sealing member (35) at the measuring end of the interface (14), the second sealing member (35) is of an annular structure and is sleeved on the portion of the signal feedback device (4) installed in the interface (14) and abutted against the inner wall of the interface (14).

6. Fire extinguishing apparatus electric selection valve according to claim 5, characterized in that the signal feedback device (4) is a diaphragm pressure switch.

7. The electric selector valve of the fire extinguishing apparatus according to claim 1, wherein the adjusting member (34) is a cylindrical structure, the cylindrical body is provided with an external thread, and the second through hole (311) is provided with an internal thread matched with the external thread of the adjusting member (34) for screwing in and screwing out the adjusting member (34).

8. Fire extinguishing unit electric selector valve according to claim 1, characterized in that the heated electric starter (32) is a resistance wire heated electric starter.