CN2615579Y

CN2615579Y - Electric water heater electricity shielding wall

Info

Publication number: CN2615579Y
Application number: CN 03223406
Authority: CN
Inventors: 李伟红
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-22
Filing date: 2003-01-22
Publication date: 2004-05-12
Anticipated expiration: 2013-01-22

Abstract

The utility model is an electrical insulation wall of an electric heater, comprising electrical insulation pipes made of high pressure and high temperature resistant and high insulating material. A plurality of hydraulic pipelines, which are arranged in the electrical insulation pipes and have inside diameters of 3-8 mm, are connected in series at the ports to form a long water channel, which has an overall length of 400-1500 mm and two ends extending out of the electrical insulation pipes. When the utility model provided at a water inlet and outlet of the electric heater is used, the value of electrical resistance every square centimeter of passing tap water is bigger than 1000 omega. After leakage current of the electric heater's inner container is isolated gradually by passing through the electrical insulation wall of the utility model, the leakage current can be decreased below 0.2 mA when arriving at the water inlet and outlet of the electric heater. Thus national standard of leakage current is achieved, personal safety is guaranteed, and the electrical insulation wall's purpose is realized eventually.

Description

The electric heater electricity-isolation wall

Technical field

The utility model relates to a kind of electric heater electricity-isolation wall.

Background technology

Electric heater is in the market guaranteeing all to have taked a lot of safeguard measures in the personal safety; as: armouring heat-generating pipe, ceramic heating element, leakage switch, reliable ground etc.; when under the environment of inclement condition, installing and using,, protective device just was difficult to guarantee personal safety in case losing efficacy.

Summary of the invention

The purpose of this utility model is to have the problem that lost efficacy at existing electric water heater leakage protection measure, provide a kind of can be when inner container of electric water heater leak electricity every electricity to protect the electric heater electricity-isolation wall of personal safety.

The purpose of this utility model is achieved in that the utility model comprises the insulation tube of being made by high temperature high voltage resistant and high-insulation material, in insulation tube, be provided with several water-filled pipes, they are connected to a long water flowing passage in the port order, the two ends of this water flowing passage are led to outside the insulation tube, the internal diameter of described water-filled pipe is 3-8mm, and the total length of water flowing passage is 400-1500mm.

The internal diameter of water-filled pipe is that 5-7mm is better in the utility model; The length of water-filled pipe is that 120-300mm is better.

The utility model is installed in the intake-outlet place of inner container of electric water heater in use, its operation principle is: the utility model is provided with a long water flowing passage in insulation tube, in use by resistance value every square centimeter 〉=1000 Ω in the running water, the leakage current of inner container of electric water heater is through decay gradually behind this long water flowing passage, by the time leakage current has been decayed below 0.2mA during the intake-outlet of electric heater, thereby reach the leakage current standard of national GB4706.11, personal safety is guaranteed, has realized the purpose of electricity-isolation wall.

Technique effect of the present utility model is: the utility model is effective every electricity, can guarantee personal safety, and simple in structure.

The utility model is described in further detail below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is the assembling assumption diagram of an embodiment of the present utility model and inner container of electric water heater and turnover water nozzle.

Fig. 2 to Fig. 4 is respectively left view, front view, the right view of insulation tube among Fig. 1.

Fig. 5 is the A-A cutaway view of Fig. 2.

Fig. 6 is the B-B cutaway view of Fig. 2.

Fig. 7 is an insulation tube and the assembling assumption diagram that passes in and out water nozzle among Fig. 1.

Fig. 8 is the cutaway view of turnover water nozzle among Fig. 7.

Fig. 9 is the left view of turnover water nozzle among Fig. 7.

The specific embodiment

Extremely shown in Figure 6 as Fig. 2, insulation tube 1 in the present embodiment has integrated with it

ring flange

7,8 at two ends, on

ring flange

7,8, be provided with water-flowing trough 10 and seal groove 9, in insulation tube 1, be provided with six water-filled

pipes

11,12,13,14,15,16, article six, order is connected to a long water flowing passage to water-filled pipe by water-flowing trough 9 at port, and its order of connection is water-filled pipe 11-12-13-14-15-16.

Extremely shown in Figure 9 as Fig. 7, after in the seal groove 9 of

ring flange

7,8, placing O-ring seal, the ring flange 7 of insulation tube 1 one ends is screwed together with end cap 18, the ring flange 8 of the other end is screwed together with the ring flange of turnover water nozzle 19, between the disjunct like this water-filled pipe port and the port of water-filled pipe just isolate outward with insulation tube 1 pipe and seal by seal groove 9 and O-ring seal, six water-filled pipes just have been linked to be the water flowing passage of a sealing.As shown in Figure 5 and Figure 6, an end of the water flowing passage water route connector 17 distolateral with being located at insulation tube 1 communicates, and the other end is positioned at an end of insulation tube 1, communicates with turnover water nozzle 19.

As shown in Figure 1, the electricity-isolation wall of present embodiment comprises two insulation tubes 1, be installed in the water inlet 4 and delivery port 5 places of inner container of electric water heater 2 respectively, the water route connector 17 of insulation tube 1 and the water inlet 4 of inner container of electric water heater 2 or delivery port 5 tight sockets also seal with O-ring seal, seal with end cap 18 upper end of insulation tube 1, lower end and water inlet tap 3 or faucet 6 are fixed together, and water inlet tap 3 is the water inlet of electric heater running water, and faucet 6 is the delivery port of electric heater.It is that nylon adds glass fiber material and makes that insulation tube 1 in the present embodiment and water inlet tap 3, faucet 6 all adopt the PA66-301 material of high-temperature-resistant high-pressure-resistant and high-insulation, and the insulation tube in the utility model also can adopt other the high-temperature-resistant high-pressure-resistant and the material of high-insulation to make certainly.In the present embodiment, water inlet tap 3 and faucet 6 are referred to as " turnover water nozzle 19 ", and the water inlet tap 4 and the faucet 5 of inner container of electric water heater 2 is referred to as " the turnover water nozzle of inner container of electric water heater ".

The internal diameter of every water-filled pipe is 3-8mm in the utility model; the length of every water-filled pipe is generally 120-300mm; form a water flowing passage that length is 400-1500mm; charged in the inner bag water of water heater; electricity-isolation wall device through inner bag intake-outlet place; form resistance more than 1.5 megaohms by resistance in the water according to pipeline length, the leakage electricity electric current of inner bag is isolated gradually, isolate purpose when being implemented in the inner bag electric leakage with the protection personal safety.

According to the volume and the water yield of electric heater, the insulation tube in the utility model also can be designed to be formed by connecting by ring flange to several sections by two.

Claims

1. electric heater electricity-isolation wall, it is characterized in that: comprise the insulation tube of making by high temperature high voltage resistant and high-insulation material, be provided with several water-filled pipes in insulation tube, they are connected to a long water flowing passage in the port order, and the two ends of this water flowing passage are led to outside the insulation tube; The internal diameter of described water-filled pipe is 3-8mm, and the total length of water flowing passage is 400-1500mm.

2. electric heater electricity-isolation wall according to claim 1, it is characterized in that: described insulation tube has integrated with it ring flange at two ends, on ring flange, be provided with water-flowing trough and seal groove, be built-in with O-ring seal at seal groove, connect by water-flowing trough between the water-filled pipe port that links to each other, isolate by seal groove and O-ring seal between the disjunct water-filled pipe port and outside the port of water-filled pipe and the insulation tube.

3. electric heater electricity-isolation wall according to claim 2, it is characterized in that: the ring flange of described insulation tube upper end is fixedlyed connected with end cap, lower end side at insulation tube is provided with a water route connector, and an end of water flowing passage communicates with the water route connector, and the other end is positioned at the lower end of insulation tube.

4. according to claim 1 or 2 or 3 described electric heater electricity-isolation walls, it is characterized in that: the internal diameter of described water-filled pipe is that 5-7mm is better.

5. according to claim 1 or 2 or 3 described electric heater electricity-isolation walls, it is characterized in that: the length of described water-filled pipe is that 120-300mm is better.

6. electric heater electricity-isolation wall according to claim 1 is characterized in that: described insulation tube is formed by connecting by ring flange to several sections by two.